Filter element with handle and filter

Abstract

The utility model discloses a filter element with a handle and a filter, the filter element comprises an annular filter medium, a central framework, a first end cover and a second end cover, the first end cover and the second end cover are connected to the annular filter medium, and the annular filter medium is provided with a central cavity arranged around the central axis of the annular filter medium; the central framework is arranged in the central cavity; and; wherein the first end cover is provided with a first opening which enters the central cavity, and a lifting handle which stretches across the first opening is arranged on the first end cover. According to the technical scheme, when the filter element is replaced, an operator can take out the whole filter element through the lifting handle after unscrewing the filter screw cap, the filter element can be operated by hands without a tool, and the filter element or the filter shell cannot be damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of filters, and in particular relates to a filter element with a handle and a filter. Background Art

[0002] The filter element in the fuel filter or oil filter needs to be replaced within a certain period. In order to remove the filter element from the housing, standard tools such as screwdrivers or pliers are often used in practice, such as in automobile factories, to try to lift and / or pull the filter element out of the housing. However, the potential risk of this operation is that the filter element or the housing (especially in the sealing area of ​​the screw cap used to close the housing) is easily damaged. In addition, if the broken pieces of the filter element remain in the housing, it will cause functional failure. In addition, the tools used will also cause damage to themselves during incorrect use.

[0003] CN201710515595.8 discloses an extraction system, comprising a separation element for separating dirt contained in a fluid, the separation element having a separation medium and an end plate arranged at the end side of the separation element, the end plate having a central void; and an extraction aid for removing the separation element from a shell. The extraction aid has a gripping section and at least two latching fingers arranged at intervals from each other, the latching fingers respectively extending away from the gripping section along the center axis of the extraction aid, and wherein, radially outside of the end plate region that directly defines the central void outward in the radial direction, a hook element according to the present invention for acting on the end plate of the separation element from behind is arranged at each latching finger.

[0004] Although the above patent can reduce the damage to the filter element or the housing, it requires a special tool, namely an auxiliary locking finger, which increases the extra cost. At the same time, if the locking finger is lost, the filter element is difficult to remove, which is inconvenient to operate and also has potential risks. Utility Model Content

[0005] The main purpose of the utility model is to provide a filter element and a filter with a handle, aiming to solve the technical problems of requiring special tools and potential risk of failure during the replacement of the filter element.

[0006] To achieve the above object, the filter element with a handle provided by the utility model comprises:

[0007] an annular filter medium having a central cavity defined about a central axis thereof;

[0008] a central frame, disposed in the central cavity; and

[0009] a first end cap and a second end cap connected to the annular filter medium;

[0010] The first end cover has a first opening entering the central cavity, and a handle spanning the first opening is configured on the first end cover.

[0011] Optionally, an outer end surface of the first end cover is provided with an annular wall extending in the axial direction, and an outer periphery of the annular wall is connected to an annular sealing member.

[0012] Optionally, the annular seal comprises a first sealing portion and a second sealing portion which are respectively sealed to the annular wall and the filter assembly, and an intercepting annular groove is formed at the connection between the first sealing portion and the second sealing portion.

[0013] Optionally, a water-blocking medium is also included, and the water-blocking medium is connected to the central skeleton and is used to block water in the oil.

[0014] Optionally, the central skeleton includes a plurality of fins, each of the fins extending in a spiral path relative to the axis of the annular filter medium to form a plurality of oil flow channels.

[0015] Optionally, the flow channel is communicated with the first opening so that water in the oil is deposited downward.

[0016] Optionally, the second end cover is provided with a second opening for sealing connection with a center tube in the filter assembly.

[0017] The utility model also provides a filter, which includes the above-mentioned filter element with a handle;

[0018] The filter assembly, the filter element with a handle is arranged inside the filter assembly, and the filter assembly is provided with an oil inlet channel and an oil outlet channel.

[0019] Optionally, a central tube connected to the central cavity is provided in the filter assembly, and the oil inlet channel or the oil outlet channel is provided in the central tube.

[0020] Optionally, the filter assembly is further provided with a water outlet channel, and a water level sensor is provided at the top of the central tube for opening the water outlet channel when the water inside the assembly settles to a predetermined water level.

[0021] In the technical solution of the utility model, when replacing the filter element, the operator can unscrew the filter cover and take out the entire filter element by the handle without the need for tools, and can operate by hand without causing damage to the filter element or the filter housing, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of a filter element with a handle provided by the utility model;

[0024] Figure 2 yes Figure 1 A three-dimensional view of some structures;

[0025] Figure 3 yes Figure 1 a sectional view of a cross section;

[0026] Figure 4 for Figure 1 A three-dimensional structure of a middle annular seal;

[0027] Figure 5 for Figure 4 a sectional view of a cross section;

[0028] Figure 6 This is an exploded view of an embodiment of a filter provided by the utility model;

[0029] Figure 7 It is a cross-sectional view of a cross section of the filter provided by the utility model.

[0030] Explanation of reference numerals: filter element with handle 100, annular filter medium 1, central cavity 1a, central skeleton 2, fin 21, flow channel 21a, first end cover 3, first opening 3a, handle 31, annular wall 32, second end cover 4, second opening 4a, annular seal 5, first sealing portion 51, second sealing portion 52, intercepting ring groove 5a, water blocking medium 6, water accumulation medium 7, filter 1000, filter assembly 200, housing 201, oil inlet channel 201a, oil outlet channel 201b, screw cap 202, water outlet channel 202a, center tube 203, water level sensor 204.

[0031] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] In order to better describe and illustrate the embodiments of the present application, reference may be made to one or more drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of the utility model creation of the present application, any of the currently described embodiments or preferred methods.

[0034] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" are based on the positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate that the device referred to must have a specific direction or operate in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] The filter element in the fuel filter or oil filter needs to be replaced at a certain period. In order to remove the filter element from the housing, standard tools such as screwdrivers or pliers are often used in practice to try to lift and / or pull the filter element out of the housing. However, the risk of such operation is that the filter element or the housing is easily damaged.

[0037] In view of this, the utility model provides a filter element with a handle, which is mainly used for a fuel filter. Figures 1 to 5 This is an embodiment of a filter element with a handle provided by the utility model. Figures 1 to 5 The filter element 100 includes an annular filter medium 1, a central skeleton 2, and a first end cap 3 and a second end cap 4 connected to both ends of the annular filter medium 1.

[0038] Specifically, the annular filter medium 1 is a cylindrical structure made of filter paper or filter material, which has a central cavity 1a set around its central axis. A central skeleton 2 is fixedly arranged in the central cavity 1a, and the central skeleton 2 is a hollow support frame, and its two ends are respectively connected to a first end cover 3 and a second end cover 4. Among them, the first end cover 3 has a first opening 3a connected to the central cavity 1a, and a handle 31 spanning the first opening 3a is constructed on the first end cover 3, that is, the handle 31 and the first end cover 3 are integrally formed, and a reinforcing rib is provided at the connection to ensure the connection strength.

[0039] In the technical solution of the utility model, when replacing the filter element 100, the operator can unscrew the filter 1000 cover and take out the filter element 100 entirely through the handle 31 without the need for tools and can operate by hand without causing damage to the filter element or the filter housing.

[0040] In order to seal the clean side and the non-clean side of the annular filter medium 1 relative to each other, see Figure 1 In one embodiment of the present invention, the outer end surface of the first end cover 3 is provided with an annular wall 32 extending in the axial direction, and the outer periphery of the annular wall 32 is connected to an annular seal 5. Figure 4 and 5 The annular seal 5 includes a first sealing portion 51 which is sealed to the second end cover 4 and a second sealing portion 52 which is sealed to the filter assembly 200. An interception annular groove 5a is formed at the connection between the first sealing portion 51 and the second sealing portion 52, which is used to intercept the oil impurities settled after the fuel is filtered. Among them, the first sealing portion 51 is tightly connected to the outer periphery of the second end cover 4, and the second sealing portion 52 is an extrudable annular spring sheet. When the filter element 100 is installed, the second sealing portion 52 is squeezed and sealed to the filter assembly 200. The cross section of the annular seal 5 is approximately V-shaped, that is, the interception annular groove 5a is a V-shaped groove; of course, the embodiments of the present invention are not limited thereto, and the cross section of the annular seal 5 can also be N-shaped, W-shaped, etc., which can be selected according to the use environment of the filter element 100.

[0041] It should be noted that the annular seal 5 of this shape has a thin-walled structure and is very soft. It can be designed with a large deformation amount. When the filter element 100 is assembled, the soft thin wall will naturally fit on the inner wall of the housing of the filter assembly 200 like a suction cup. Because the middle of the first sealing part 51 and the second sealing part 52 is not solid and has a compression space, the adhesion force with the inner wall of the housing is not very large and can be easily separated; when the filter element 100 is working, under the pressure of the oil, the thin wall is pressed against the inner wall of the housing. The greater the pressure, the tighter it fits, and the better the sealing effect, so the annular seal 5 has a self-sealing structure; after the pressure is lost, the adhesion force between the thin wall and the inner wall of the housing returns to a normal state.

[0042] In order to enable the filter element 100 to filter out water from the oil when in use, please refer to Figure 3 In one embodiment of the utility model, the filter element 100 further includes a water-blocking medium 6, which is connected to the central skeleton 2, so that when the oil in the central cavity 1a passes through the water-blocking medium 6, water in the oil is blocked from passing through. In this embodiment, the water-blocking medium 6 is an oil-water separation filter membrane, which is formed in a cylindrical shape and connected to the inner periphery of the central skeleton 2.

[0043] To improve oil filtration efficiency, refer to Figure 2 and Figure 3 In one embodiment of the utility model, the central skeleton 2 includes a plurality of fins 21, each of which extends in a spiral path relative to the axis of the annular filter medium 1 to form a plurality of oil flow channels 21a. When the oil is pumped, it rises along the surface of the fin 21 to fully contact the water-blocking medium 6, so that the oil is filtered out faster, thereby improving the oil filtering efficiency.

[0044] For further information, see Figure 3 The fin 21 is provided with oil holes so that the flow channels 21a are connected to each other, thereby making the oil flow distribution more uniform.

[0045] When the oil enters the clean side (i.e., the inside) from the non-clean side (i.e., the outside) of the annular filter medium 1 and reaches the flow channel 21a, the water is filtered out by the water-blocking medium 6. In order to collect the water, please refer to Figure 3 In one embodiment of the utility model, the flow channel 21a is connected to the first opening 3a. Since the density of water is greater than that of oil, it can be deposited downward through the first opening 3a. In addition, to facilitate the deposition of water, a water accumulation medium 7 is provided between the annular filter medium 1 and the central skeleton 2, which can absorb water and make the water settle under the action of gravity.

[0046] To allow the clean oil in the filter element 100 to be pumped out, refer to Figure 3 In one embodiment of the utility model, the second end cover 4 is provided with a second opening 4a for sealingly connecting with the central tube 203 in the filter assembly 200 so that the central tube 203 can extract the clean oil in the central cavity 1a.

[0047] The utility model also provides a filter 1000, Figure 6 and Figure 7 This is an embodiment of the filter 1000 provided by the utility model. Figure 6 and Figure 7, which includes the above-mentioned filter element 100 with a handle 31 and a filter assembly 200, the filter element 100 is arranged inside the filter assembly 200, and the filter assembly 200 is provided with an oil inlet channel 201a and an oil outlet channel 201b. In this embodiment, the filter assembly 200 includes a housing 201 with an opening and a rotary cover 202 sealing the housing 201, the oil inlet channel 201a and the oil outlet channel 201b are formed in the housing 201, and the rotary cover 202 is connected to the lower opening of the housing 201 by threads. In addition, the filter element 100 is installed in the housing 201 along its axial direction, and the handle 31 is arranged at the bottom, so that the operator can pull out the filter element 100 as a whole. Of course, the implementation of the utility model is not limited to this. In some embodiments, the handle 31 can also be arranged at the top.

[0048] For further information, see Figure 7 In one embodiment of the present invention, a central tube 203 communicating with the central cavity 1a of the filter element 100 is provided in the housing 201 of the filter assembly 200, and the oil inlet channel 201a or the oil outlet channel 201b is provided in the central tube 203. In this embodiment, the central tube 203 is arranged along the axial direction and is sealed to the second end cover 4, the oil inlet channel 201a is provided in the central tube 203, and the oil outlet channel 201b is provided on the outer wall of the housing 201. Of course, the implementation of the present invention is not limited to this, and in some embodiments, the oil outlet channel 201b may also be provided in the central tube 203, and the oil inlet channel 201a is provided on the outer wall of the housing 201.

[0049] See also Figure 7 In one embodiment of the utility model, the filter assembly 200 is further provided with a water outlet channel 202a, which is provided on the rotary cover 202. In addition, a water level sensor 204 is provided at the top of the central tube 203, and the water level sensor 204 includes two electrodes. When the water inside the filter assembly 200 is deposited to a predetermined water level, the two electrodes conduct electricity and sound an alarm to remind the operator to open the water outlet channel 202a for drainage. In addition, the water outlet channel 202a is provided with a drain valve, which is provided on the rotary cover 202, for drainage.

[0050] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A filter element with a handle, characterized in that: include: An annular filter medium (1), the annular filter medium (1) having a central cavity (1a) set around its central axis; a central frame (2), arranged in the central cavity (1a); and A first end cap (3) and a second end cap (4) connected to the annular filter medium (1); The first end cover (3) has a first opening (3a) connected to the central cavity (1a), and the first end cover (3) is provided with a handle (31) spanning the first opening (3a).

2. The filter element with a handle according to claim 1, characterized in that: An outer end surface of the first end cover (3) is provided with an annular wall (32) extending in the axial direction, and an annular sealing member (5) is connected to the outer peripheral edge of the annular wall (32).

3. The filter element with a handle according to claim 2, characterized in that: The annular seal (5) comprises a first sealing portion (51) and a second sealing portion (52) which are respectively sealed to the annular wall (32) and the filter assembly, and an intercepting annular groove (5a) is formed at the connection between the first sealing portion (51) and the second sealing portion (52).

4. The filter element with a handle according to claim 1, characterized in that: It also includes a water-blocking medium (6), which is connected to the central frame (2) and is used to block water in the oil.

5. The filter element with a handle according to claim 4, characterized in that: The central skeleton (2) comprises a plurality of fins (21), each of the fins (21) extending in a spiral path relative to the axis of the annular filter medium (1) to form a plurality of oil flow channels (21a).

6. The filter element with a handle according to claim 5, characterized in that: The flow channel (21a) is connected to the first opening (3a) so that water in the oil is deposited downward.

7. The filter element with a handle according to claim 4, characterized in that: The second end cover (4) is provided with a second opening (4a) for sealingly connecting with the center tube in the filter assembly.

8. A filter, characterized in that: include: A filter element with a handle as described in any one of claims 1 to 7; A filter assembly (200), wherein the filter element with a handle is arranged inside the filter assembly (200), and the filter assembly (200) is provided with an oil inlet channel (201a) and an oil outlet channel (201b).

9. The filter according to claim 8, characterized in that A central tube (203) communicating with the central cavity (1a) is provided in the filter assembly (200); the oil inlet channel (201a) or the oil outlet channel (201b) is provided in the central tube (203).

10. The filter according to claim 9, characterized in that The filter assembly is also provided with a water outlet channel (202a), and a water level sensor (204) is provided at the top end of the central tube (203) for opening the water outlet channel (202a) when water inside the filter assembly (200) settles to a predetermined water level.

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