A removable diesel filter

Abstract

The present application discloses a detachable diesel filter, comprising an outer shell, a filter seat, an oil inlet, an oil outlet, a filter unit, an annular protrusion, a fixed ring sleeve, a slide groove, a slider, an annular groove, a rotating ring sleeve, a plurality of slots, and a pair of pin rivet units each with a manually insertable and pullable pin, the slide groove comprising a transverse section and a lifting section, the slider being able to slide in the transverse section and the lifting section, and by adopting the above technical scheme, in daily use, when replacing the filter unit, the pin is pulled out, the rotating ring sleeve is rotated, the slider moves to the connection between the transverse section and the lifting section, the outer shell is moved away from the filter seat, the outer shell and the filter seat are separated, and after replacing a new filter unit, the outer shell is inserted into the fixed ring sleeve, the slider slides from the lifting part to the transverse section and is inserted into the slot at the same time, then the outer shell is rotated, the rotating ring sleeve is rotated together, then the pin is inserted, and the filter unit is replaced.

Description

Technical Field

[0001] The invention relates to a detachable diesel filter. Background Art

[0002] The function of the diesel filter is to filter out harmful impurities and moisture in the fuel system, protect the normal operation of the engine, reduce wear, avoid blockage and increase engine life.

[0003] The filter papers in the existing internal structures of filters are all disposable and lose their filtering function after being used for too long, but the external structure of the filter is still intact, which leads to waste in replacing the filter, and the existing internal structure is made as a whole with the external structure and cannot be replaced as a single part. To solve this problem, a new type of detachable diesel filter (CN216278228U) has emerged. It constructs a filter assembly by connecting the upper and lower ends of the filter element body covered by the upper end cover and the lower end cover, and the upper and lower ends of the filter assembly here are detachably connected to the outer shell. When used later, you only need to open the filter seat and then pull the filter assembly out of it for replacement, avoiding the discarding of the outer shell and thus avoiding waste of resources.

[0004] It is necessary to disassemble the housing and then the upper and lower end covers of the filter assembly and then remove them. According to the attached drawings, it can be seen that the housing and the filter seat are connected by threads, and the filter element (body and the upper and lower end covers are fitted by interference. These connection structures are difficult or impossible to disassemble and assemble without tools, which is very inconvenient. Therefore, it is necessary to make improvements. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] The present application provides a detachable diesel filter, comprising a housing, a filter seat, an oil inlet, an oil outlet and a filter unit, and also comprising:

[0007] A quick-release mechanism, which is used to detachably connect the housing and the filter seat;

[0008] An annular convex portion, which is arranged on the inner surface of the filter seat and surrounds the oil inlet;

[0009] One end of the filter unit is in contact with the top of the inner cavity of the shell, and the other end is sleeved on the outside of the annular convex part.

[0010] The quick release mechanism includes:

[0011] A fixed ring sleeve, which is integrally formed and arranged on the outer peripheral wall of the filter seat;

[0012] A pair of engaging devices, each comprising a slide groove arranged on the inner wall of the fixed ring sleeve and a slide block arranged on the outer wall of the shell;

[0013] The locking device is used to fix the corresponding sliding block in each sliding groove.

[0014] The chute includes:

[0015] The transverse section has a recessed portion disposed on the inner peripheral wall of the fixed ring sleeve and extending horizontally along the circumference of the fixed ring sleeve;

[0016] The lifting section has one end connected to one end of the lateral moving section and the other end extending upwards and penetrating therethrough;

[0017] The sliding block can slide in the transverse section and the lifting section.

[0018] The locking device includes:

[0019] An annular groove is provided on the outer peripheral wall of the fixed annular sleeve, and the inner side wall is connected with the transverse displacement section;

[0020] A rotating ring sleeve, which is rotatably mounted in the ring groove;

[0021] A plurality of slots are arranged at the top of the rotating ring sleeve for inserting the slider;

[0022] A pair of pin riveting units, each with a manually insertable and removable pin, for fixing the rotating ring sleeve;

[0023] The lower end of the lifting section is connected with the top end of the annular groove.

[0024] The pin riveting unit consists of:

[0025] A sliding pin groove penetrates through the side wall of the rotating ring sleeve and extends along the circumference of the rotating ring sleeve;

[0026] The clamping groove is arranged at the end of the sliding pin hole away from the lifting section, is circular in shape, and has a diameter larger than the width of the sliding pin groove;

[0027] A fixed pin, which is fixedly mounted on the inner side wall of the annular groove and can slide between the sliding pin groove and the clamping groove;

[0028] A fixing sleeve, which is sleeved on the outside of the fixing pin and can be inserted into the fixing groove;

[0029] A through hole penetrates the fixing sleeve and the fixing pin and is used for inserting the latch pin.

[0030] The latch includes:

[0031] An inserting section, which can be inserted into the through hole;

[0032] The engaging section comprises an engaging portion and an arc-shaped portion arranged in the middle section of the engaging portion and adapted to the contour of the outer peripheral wall of the fixing sleeve;

[0033] The connecting section is used to fix the plug-in section and one end of the locking section to each other.

[0034] The filter unit includes:

[0035] The installation sleeve has a plurality of through holes on the peripheral wall, and the lower end can be sleeved on the outside of the fixed ring sleeve;

[0036] An end plate is fixedly mounted on the top of the mounting sleeve and has a recessed portion at the center;

[0037] A filter element disposed in the mounting sleeve;

[0038] The concave platform is inwardly concave and arranged on the top of the shell, and is used for plugging and matching with the concave part.

[0039] Also includes:

[0040] The sealing groove is ring-shaped and recessed on the inner surface of the filter seat;

[0041] A sealing ring is used to seal the sealing groove with the bottom end of the housing.

[0042] The sealing ring includes:

[0043] A bottom ring, which is sleeved in the sealing groove;

[0044] A side ring, which is integrally formed and arranged on the inner side of the top surface of the bottom ring;

[0045] The bottom end surface of the shell abuts against the top surface of the bottom ring, and the inner side wall abuts against the outer side wall of the side ring.

[0046] The sealing ring also includes:

[0047] A cavity, which is disposed in the bottom ring and the side ring and has an L-shaped longitudinal cross section;

[0048] A plurality of springs are respectively arranged at the outer ends of the bottom of the cavity and are located below the shell.

[0049] The beneficial effects of the present invention are as follows:

[0050] 1. Through the arrangement of the annular convex part, the mounting sleeve, the end plate, the recessed part, the filter element and the concave platform, after the housing and the filter seat are separated, the mounting sleeve can be removed to replace the filter element, which is convenient to operate and firmly installed;

[0051] 2. By setting a fixed sleeve, a pair of slide grooves, a pair of sliders, a ring groove, a rotating ring sleeve, a plurality of slots, a pair of slide pin grooves, a pair of clamping grooves, a pair of fixed pins, a pair of fixed sleeves, a pair of through holes and a pair of latches, the rotating ring sleeve can be fixed / released by plugging and pulling the latches, so that a pair of sliders can be fixed to / detached from the corresponding slide grooves, thereby facilitating the disassembly and assembly of the housing and the filter seat;

[0052] 3. The sealing effect between the filter seat and the shell is ensured by setting the sealing groove, bottom ring, side ring, cavity and several springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 This is a front view of a detachable diesel filter in an embodiment of the present application;

[0054] Figure 2 for Figure 1 Schematic diagram of the cross-section structure in the AA direction;

[0055] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0056] Reference numerals

[0057] 1-housing, 2-filter seat, 3-oil inlet, 4-oil outlet, 5-ring convex part, 6-fixed ring sleeve, 7-slide groove, 701-transverse section, 702-lifting section, 8-slider, 9-locking device, 901-ring groove, 902-rotating ring sleeve, 903-slot, 10-pin riveting unit, 1001-sliding pin groove, 1002-fixed groove, 1003-fixed pin, 1004-fixed sleeve, 1005-through hole, 11-pin, 1101-plug-in section, 1102-clamping section, 1102a-clamping portion, 1102b-arc-shaped portion, 1103-connecting section, 12-filter unit, 1201-installing sleeve, 1202-through hole, 1203-end plate, 1204-recessed portion, 1205-filter element, 1206-recess, 13-sealing groove, 14-sealing ring, 1401-bottom ring, 1402-side ring, 1403-cavity, 1404-spring. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0059] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0060] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0061] Embodiment 1:

[0062] like Figures 1 to 3 As shown, an embodiment of the present application provides a detachable diesel filter, including an outer shell 1, a filter seat 2, an oil inlet 3, an oil outlet 4 and a filter unit 12, and also includes a quick-release mechanism, which is used to make the outer shell 1 and the filter seat 2 detachable and connected; an annular convex portion 5, which is arranged on the inner surface of the filter seat 2 and surrounds the oil inlet 3, one end of the filter unit 12 abuts against the top of the inner cavity of the outer shell 1, and the other end is sleeved on the outside of the annular convex portion 5.

[0063] Furthermore, the quick-release mechanism includes a fixed ring sleeve 6, which is integrally formed and arranged on the outer peripheral wall of the filter seat 2; a pair of clamping devices, each including a slide groove 7 arranged on the inner wall of the fixed ring sleeve 6 and a slider 8 arranged on the outer wall of the shell 1; a locking device 9, which is used to fix the corresponding slider 8 in each slide groove 7.

[0064] Furthermore, the slide groove 7 includes a transverse section 701, which is recessed on the inner wall of the fixed ring sleeve 6 and extends horizontally along the circumference of the fixed ring sleeve 6; a lifting section 702, one end of which is connected to one end of the transverse section 701 and the other end extends upward and through, and the slider 8 can slide in the transverse section 701 and the lifting section 702.

[0065] Furthermore, the locking device 9 includes an annular groove 901, which is arranged on the outer peripheral wall of the fixed ring sleeve 6, and the inner wall is connected to the transverse section 701; a rotating ring sleeve 902, which can be rotatably installed in the annular groove 901; a plurality of slots 903, which are arranged at the top of the rotating ring sleeve 902, for plugging the slider 8; a pair of pin rivet units 10, each with a manually pluggable pin 11, for fixing the rotating ring sleeve 902, and the lower end of the lifting section 702 is connected to the top of the annular groove 901.

[0066] Furthermore, the pin riveting unit 10 includes a sliding pin groove 1001, which passes through the side wall of the rotating ring sleeve 902 and extends along the circumference of the rotating ring sleeve 902; a fixing groove 1002, which is arranged at the end of the sliding pin hole away from the lifting section 702, is circular, and has a diameter greater than the width of the sliding pin groove 1001; a fixed pin 1003, which is fixedly installed on the inner wall of the ring groove 901 and can slide between the sliding pin groove 1001 and the fixing groove 1002; a fixed sleeve 1004, which is sleeved on the outside of the fixed pin 1003 and can be inserted into the fixing groove 1002; a through hole 1005, which passes through the fixed sleeve 1004 and the fixed pin 1003, and is used to allow the pin 11 to be inserted.

[0067] Furthermore, the latch 11 includes an inserting section 1101, which can be inserted into the through hole 1005; a snap-fit ​​section 1102, which includes a snap-fit ​​portion 1102a and an arc-shaped portion 1102b arranged in the middle section of the snap-fit ​​portion 1102a and adapted to the outer wall contour of the fixed sleeve 1004; and a connecting section 1103, which is used to fix the inserting section 1101 and one end of the snap-fit ​​section 1102 to each other.

[0068] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the filter unit 12 needs to be replaced, the plug-in section 1101 and the clamping section 1102 are pressed away from the end of the connecting section 1103, so that the arc-shaped portion 1102b is separated from the fixed sleeve 1004, and the clamping section 1102a is released from the fixed sleeve 1004, and then the connecting section 1103 is held and pulled out to separate the plug-in section 1101 from the through hole 1005, and the clamping section 1102 is separated from the fixed sleeve 1004, and then the fixed sleeve 1004 is slid outward to separate from the fixed pin 1003, and then the lifting section 1103 is pulled outward ... then the clamping section 1102 is pulled outward to separate the plug-in section 1101 from the fixed pin 1003, and then the lifting section 1103 is pulled outward to separate the plug-in section 1101 from the through hole 1005, and then the clamping section 1102 is pulled outward to separate the plug-in section 11 The rotating ring sleeve 902 is rotated in the direction of the filter seat 2, and each slot 903 rotates together with the rotating ring sleeve 902, driving each slider 8 to slide toward the lifting section 702 in the corresponding transverse section 701. At the same time, the fixed pin 1003 slides from the clamping groove 1002 to the sliding pin groove 1001 until each slider 8 moves to the bottom of the corresponding lifting section 702. At this time, the rotation of the rotating ring sleeve 902 is stopped, and the housing 1 is pulled away from the filter seat 2. In this process, each slider 8 moves into the lifting section 702 until each slider 8 is separated from the corresponding lifting section 702 and the housing 1 is separated. The housing 1 is removed from the fixed ring sleeve 6. The filter unit 12 is then removed from the fixed ring sleeve 6. After replacing the new filter unit 12, the lower end of the housing is inserted into the inner cavity of the fixed ring sleeve 6, so that each slider 8 is inserted into the corresponding lifting section 702, and the housing is pressed to make the slider 8 enter the transverse section 701 and the corresponding slot 903. Then the rotating ring sleeve 902 is rotated in the direction in which the fixing groove 1002 is set. The slider 8 slides in the transverse section 701 away from the lifting section 702. When the fixing pin 1003 slides along the sliding pin groove 1001 to the fixing groove 1002, At this time, the fixing sleeve 1004 is sleeved onto the outside of the fixing pin shaft and inserted into the fixing groove 1002, and then the plug-in section 1101 of the pin 11 is inserted into the through hole 1005 and the plug-in section 1101 is pressed, so that the arc portion 1102b of the locking section 1102 contacts the outer wall of the fixing sleeve 1004. The U-shape formed by the plug-in section 1101, the locking section 1102 and the connecting section 1103 provides pressure for the arc portion 1102b, so that it contacts closely with the outer wall of the fixing sleeve 1004, thereby completing the fixing of the housing 1 and the filter seat 2. The above operation can be performed without the aid of tools.

[0069] Embodiment 2:

[0070] like Figure 2As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the filter unit 12 includes a mounting sleeve 1201, a plurality of through holes 1202 are provided on the peripheral wall, and the lower end can be sleeved on the outside of the fixed ring sleeve 6; an end plate 1203, which is fixedly mounted on the top of the mounting sleeve 1201 and has a recessed portion 1204 in the center; a filter element 1205, which is arranged in the mounting sleeve 1201; and a recessed platform 1206, which is recessed inwardly and arranged on the top of the outer shell 1, for plugging and cooperating with the recessed portion 1204.

[0071] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the shell and the filter seat 2 are connected to each other through the quick-release structure, the recessed platform 1206 cooperates with the recessed portion 1204, and the lower end of the mounting sleeve 1201 is sleeved on the outside of the fixed ring sleeve 6. The diesel enters the filter cartridge from the oil inlet hole, is filtered by the filter element 1205, and is discharged from the mounting sleeve 1201 from the through hole 1202. When the shell is separated from the filter seat 2, the recessed platform 1206 is separated from the recessed portion 1204. At this time, the mounting sleeve 1201 can be pulled to remove it from the outside of the fixed ring sleeve 6. After replacing the filter element 1205, the lower end of the mounting sleeve 1201 can be inserted on the outside of the fixed sleeve 1004. Only the filter element 1205 is disposable, and other components can be reused to save costs.

[0072] Embodiment 3:

[0073] like Figure 2 and Figure 3 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes a sealing groove 13 which is ring-shaped and recessed on the inner surface of the filter seat 2; and a sealing ring 14 which is used to seal the sealing groove 13 with the bottom end of the housing 1.

[0074] Furthermore, the sealing ring 14 includes a bottom ring 1401, which is sleeved in the sealing groove 13; and a side ring 1402, which is integrally formed and arranged on the inner side of the top surface of the bottom ring 1401; wherein the bottom end surface of the housing 1 abuts against the top surface of the bottom ring 1401, and the inner side wall abuts against the outer side wall of the side ring 1402.

[0075] Furthermore, the sealing ring 14 also includes a cavity 1403 , which is arranged inside the bottom ring 1401 and the side ring 1402 , and has an L-shaped longitudinal cross-section; a plurality of springs 1404 are respectively arranged at the bottom outer end of the cavity 1403 , located below the housing 1 .

[0076] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the shell and the filter seat 2 are installed, the bottom end of the shell is abutted against the bottom ring 1401 and the side ring 1402 at the same time, and the provision of a plurality of springs 1404 enhances the sealing between the bottom ring 1401 and the bottom end of the shell, and the cavity 1403 is pressed downward when the shell is installed, and part of the cavity 1403 located inside the bottom ring 1401 is compressed, and part of the cavity 1403 located inside the side ring 1402 bulges, so that the side ring 1402 is in close contact with the inner wall of the shell and the side wall of the sealing groove 13.

[0077] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0078] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A detachable diesel filter, comprising a housing (1), a filter seat (2), an oil inlet (3), an oil outlet (4) and a filter unit (12), characterized in that: Also includes: A quick-release mechanism, used to enable the housing (1) to be detachably connected to the filter seat (2); An annular convex portion (5) arranged on the inner surface of the filter seat (2) and surrounding the oil inlet (3); One end of the filter unit (12) is in contact with the top of the inner cavity of the housing (1), and the other end is sleeved on the outside of the annular protrusion (5); The quick release mechanism comprises: A fixed ring sleeve (6) which is integrally formed and arranged on the outer peripheral wall of the filter seat (2); A pair of engaging devices, each comprising a slide groove (7) arranged on the inner wall of the fixed ring sleeve (6) and a slide block (8) arranged on the outer wall of the housing (1); A locking device (9) for fixing the corresponding slider (8) in each of the slide grooves (7); The slide chute (7) comprises: A transverse displacement section (701), the depression of which is arranged on the inner peripheral wall of the fixed ring sleeve (6) and extends horizontally along the circumference of the fixed ring sleeve (6); A lifting section (702), one end of which is connected to one end of the transverse moving section (701), and the other end of which extends upward and penetrates through; Wherein, the sliding block (8) can slide in the transverse moving section (701) and the lifting section (702); The locking device (9) comprises: An annular groove (901) is arranged on the outer peripheral wall of the fixed ring sleeve (6), and the inner side wall is connected to the transverse displacement section (701); A rotating ring sleeve (902) rotatably mounted in the ring groove (901); A plurality of slots (903) are arranged on the top of the rotating ring sleeve (902) and are used to allow the slider (8) to be inserted; A pair of pin riveting units (10), each having a manually insertable and removable pin (11) for fixing the rotating ring sleeve (902); Wherein, the lower end of the lifting section (702) is connected to the top end of the annular groove (901).

2. A detachable diesel filter according to claim 1, characterized in that: The pin riveting unit (10) comprises: A sliding pin groove (1001) passes through the side wall of the rotating ring sleeve (902) and extends along the circumference of the rotating ring sleeve (902); A fixing groove (1002), which is arranged at one end of the sliding pin hole away from the lifting section (702), is circular in shape, and has a diameter greater than the width of the sliding pin groove (1001); A fixed pin (1003) which is fixedly mounted on the inner side wall of the annular groove (901) and can slide between the sliding pin groove (1001) and the fixing groove (1002); A fixing sleeve (1004) which is sleeved on the outside of the fixing pin (1003) and can be inserted into the fixing groove (1002); A through hole (1005) passes through the fixing sleeve (1004) and the fixing pin (1003) and is used to allow the latch pin (11) to pass through.

3. A detachable diesel filter according to claim 2, characterized in that: The latch (11) comprises: An inserting section (1101), which can be inserted into the through hole (1005); A snap-fit ​​section (1102), comprising a snap-fit ​​portion (1102a) and an arc-shaped portion (1102b) arranged in the middle section of the snap-fit ​​portion (1102a) and adapted to the contour of the outer peripheral wall of the fixed sleeve (1004); The connecting section (1103) is used to fix the plug-in section (1101) and one end of the snap-fit ​​section (1102) to each other.

4. A detachable diesel filter according to any one of claims 1 to 3, characterized in that: The filtering unit (12) comprises: The mounting sleeve (1201) has a plurality of through holes (1202) on its peripheral wall, and the lower end of the mounting sleeve can be sleeved on the outside of the fixing ring sleeve (6); An end plate (1203) is fixedly mounted on the top of the mounting sleeve (1201) and has a recessed portion (1204) at its center; A filter element (1205) disposed in the mounting sleeve (1201); A recessed platform (1206) is arranged inwardly recessed at the top of the housing (1) and is used for plugging and mating with the recessed portion (1204).

5. A detachable diesel filter according to any one of claims 1 to 3, characterized in that: Also includes: A sealing groove (13) which is ring-shaped and recessed on the inner surface of the filter seat (2); A sealing ring (14) is used to seal the sealing groove (13) and the bottom end of the housing (1).

6. A detachable diesel filter according to claim 5, characterized in that: The sealing ring (14) comprises: A bottom ring (1401) sleeved in the sealing groove (13); A side ring (1402) which is integrally formed and arranged on the inner side of the top surface of the bottom ring (1401); The bottom end surface of the outer shell (1) abuts against the top surface of the bottom ring (1401), and the inner side wall abuts against the outer side wall of the side ring (1402).

7. A detachable diesel filter according to claim 6, characterized in that: The sealing ring (14) further comprises: A cavity (1403), which is arranged in the bottom ring (1401) and the side ring (1402) and has an L-shaped longitudinal cross section; A plurality of springs (1404) are respectively arranged at the outer ends of the bottom of the cavity (1403) and are located below the housing (1).

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