Air inlet filter element structure of fuel engine unit

Abstract

The utility model relates to an air inlet filter element structure, in particular to an air inlet filter element structure of a fuel engine unit, which comprises a filter box, and a breather pipe and a fixing frame are fixedly mounted on the filter box. An air inlet pipe is fixedly mounted on the cover plate, and a limiting groove is formed in the cover plate; the connecting piece is arranged on the filter box and comprises a limiting plate; the filter element is embedded with the fixing frame in a sliding manner; a plurality of groups of filter holes are formed in the filter element; the fastener comprises a plurality of groups of wedge blocks which are used for being clamped with the filter element, and the plurality of groups of wedge blocks are arranged in a sliding manner in the circumferential direction of the filter box at equal intervals; through the extrusion effect of the wedge block and the filter element, sliding of the filter element on the fixing frame is limited, the phenomenon that a gap exists between the filter element and the ventilation pipe, and consequently plugging failure is caused is avoided, and the protection effect on the combustion chamber is improved; and the filter element and the filter box are connected through the fastener, so that infirm installation caused by dust accumulation can be effectively avoided, and the labor cost and the time cost for cleaning the filter box can be reduced.

Description

Technical Field

[0001] This utility model relates to an air intake filter structure, specifically an air intake filter structure for a fuel engine. Background Technology

[0002] The intake filter structure of a fuel engine mainly consists of a filter element and a housing. The filter element is the core filtration component, while the housing provides protection for it. The filter element typically uses porous media materials (such as paper or fiber) to physically block dust, sand, and other impurities from the air. It features good air permeability and high filtration accuracy, but needs to be replaced regularly to avoid clogging.

[0003] The filter element is usually connected to the housing with screws. After the filter element is installed on the air pipe of the housing, it is tightened with screws to reduce the installation gap.

[0004] After a period of operation, dust and other impurities will accumulate on the filter element and the inner wall of the engine housing. During maintenance, disassembling the filter element will cause some dust to fall off and may fall into the screw holes. This may result in the screws not being tightened properly, making the connection between the filter element and the engine housing loose and the gap too large. This will reduce the filtering effect of the filter element and is not conducive to the protection of the engine. Utility Model Content

[0005] The purpose of this invention is to provide an intake filter structure for a fuel engine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An intake filter structure for a fuel engine assembly includes a filter box, on which a vent pipe and a mounting bracket are fixedly installed.

[0008] It also includes a cover plate, on which an air intake pipe is fixedly installed and a limiting groove is formed;

[0009] A connector, disposed on the filter box, includes a limiting plate for engaging with the limiting groove;

[0010] It also includes a filter element that slides and fits into the fixing frame; the filter element has multiple sets of filter holes;

[0011] The fastener includes multiple sets of wedges for engaging with the filter element, the multiple sets of wedges being equidistantly arranged and sliding circumferentially along the filter box.

[0012] The intake filter structure of the fuel engine assembly as described above: the fastener also includes multiple sets of first springs disposed within the filter housing; the two ends of the first springs respectively abut against the wedge block and the filter housing.

[0013] The intake filter structure of the fuel engine unit as described above: the fasteners also include multiple sets of sliders slidably installed in the filter box, a first sliding column and a sliding groove are fixedly installed on the slider, and a second sliding column that is slidably connected to the sliding groove is fixedly installed on the wedge; a rotating ring is rotatably installed in the filter box, and multiple sets of inclined grooves that slidably engage with the first sliding column are opened on the rotating ring.

[0014] The intake filter structure of the fuel engine unit as described above includes: the connecting component further includes multiple sets of fixed sleeves fixedly installed in the filter box; a sliding sleeve is slidably fitted inside the fixed sleeve; a rotating rod rotatably connected to the fixed sleeve is sleeved inside the sliding sleeve; the rotating rod is fixedly connected to the limiting plate; multiple sets of grooves are formed on the rotating rod; a protruding post slidably fitted into the grooves is fixedly installed on the sliding sleeve; a second spring is provided inside the fixed sleeve; the two ends of the second spring respectively abut against the fixed sleeve and the sliding sleeve.

[0015] The intake filter structure of the fuel engine assembly as described above: the groove group includes a first vertical groove, a first inclined groove, a second vertical groove and a second inclined groove; wherein, one end of the first vertical groove is connected to one end of the first inclined groove, the other end of the first inclined groove is connected to one end of the second vertical groove, one end of the second vertical groove is connected to one end of the second inclined groove, and the other end of the second inclined groove is connected to the first vertical groove in another set of the groove groups.

[0016] The intake filter structure of the fuel engine unit as described above: multiple sets of slots are formed on the rotating ring.

[0017] Compared with the prior art, the beneficial effects of this utility model are: by squeezing the filter element with the wedge, the filter element is restricted from sliding on the fixed frame, so as to avoid gaps between the filter element and the air pipe, which would lead to sealing failure, thereby improving the protection of the combustion chamber; and by connecting the filter element and the filter box with fasteners, the installation can be effectively prevented from being unstable due to dust accumulation, and the labor and time costs of cleaning the filter box can be reduced. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the intake filter structure of a fuel engine.

[0019] Figure 2 for Figure 1 A structural schematic diagram from a cross-sectional perspective.

[0020] Figure 3 This is a schematic diagram of the air filter element in the intake filter structure of a fuel engine.

[0021] Figure 4 for Figure 1 A structural diagram from the perspective of an explosion.

[0022] Figure 5 for Figure 4 A schematic diagram of the structure at point A in the middle.

[0023] Figure 6 for Figure 4 A schematic diagram of the structure at point B.

[0024] Figure 7 for Figure 4 A structural diagram from another perspective.

[0025] In the diagram: 1. Filter box; 101. Vent pipe; 102. Fixing bracket; 103. Fixing sleeve;

[0026] 2. Cover plate; 201. Air inlet pipe; 202. Limiting groove;

[0027] 3. Filter element; 301. Filter pores;

[0028] 4. Rotary ring; 401. Inclined groove;

[0029] 5. Slider; 501. First sliding post; 502. Slide groove;

[0030] 6. Wedge block; 601. Second sliding column;

[0031] 7. First spring;

[0032] 8. Sliding sleeve; 801. Protruding post;

[0033] 9. Rotating rod; 901. First vertical groove; 902. First inclined groove; 903. Second vertical groove; 904. Second inclined groove;

[0034] 10. Limit plate;

[0035] 11. The second spring. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] Please see Figures 1-7 As an embodiment of the present utility model, the intake filter structure of the fuel engine group includes a filter box 1, on which a vent pipe 101 and a fixing bracket 102 are fixedly installed.

[0038] It also includes a cover plate 2, on which an air inlet pipe 201 is fixedly installed and a limiting groove 202 is formed;

[0039] A connector, provided on the filter box 1, includes a limiting plate 10 for engaging with the limiting groove 202;

[0040] It also includes a filter element 3 that slides and fits into the fixing frame 102; the filter element 3 has multiple sets of filter holes 301;

[0041] Fasteners include multiple sets of wedges 6 for engaging with the filter element 3, the multiple sets of wedges 6 being equidistantly arranged and sliding along the circumference of the filter box 1.

[0042] In this embodiment, the filter element 3 is installed on the mounting bracket 102 to block the vent pipe 101, thereby preventing small-particle dust and large-particle debris in the air from entering the combustion chamber through the vent pipe 101.

[0043] During the installation of filter element 3 (i.e., the sliding process of filter element 3 on the fixing frame 102), filter element 3 will contact wedge block 6 and squeeze wedge block 6 after contact, thereby causing wedge block 6 to move away from the axis in the radial direction of filter box 1; after filter element 3 passes wedge block 6, wedge block 6 will move closer to the axis in the radial direction of filter box 1. The squeezing action between wedge block 6 and filter element 3 restricts the sliding of filter element 3 on fixing frame 102, so as to avoid gaps between filter element 3 and vent pipe 101, which would lead to sealing failure, thereby improving the protection of combustion chamber; and the fastener connection between filter element 3 and filter box 1 can effectively avoid dust accumulation causing loose installation, and can reduce the labor and time costs of cleaning filter box 1.

[0044] After the filter element 3 is installed, the cover plate 2 is connected to the filter box 1 via a connector. The limiting plate 10 is initially aligned with the limiting groove 202, allowing it to pass through the groove during cover plate 2 installation. After passing through, the limiting plate 10 rotates, causing it to misalign with the groove 202. This mutual contact between the limiting plate 10 and the cover plate 2 prevents the cover plate 2 from separating from the filter box 1. Connecting the cover plate 2 to the filter box 1 via a connector effectively improves installation efficiency. The connection between the cover plate 2 and the filter box 1 protects the filter element 3, thus extending its service life.

[0045] As a further embodiment of this utility model, the fastener also includes multiple sets of first springs 7 disposed inside the filter box 1; the two ends of the first springs 7 respectively abut against the wedge block 6 and the filter box 1.

[0046] In this embodiment, both sides of the wedge 6 are inclined. During the sliding process of the filter element 3 on the fixing frame 102, the filter element 3 will contact the inclined surface on one side of the wedge 6, thereby squeezing the wedge 6 to make the wedge 6 move away from the axis in the radial direction of the filter box 1, thereby reducing the resistance of the filter element 3 sliding. During this process, the first spring 7 will be compressed.

[0047] After the filter element 3 passes the wedge block 6, the elastic force of the first spring 7 will drive the wedge block 6 to move closer to the axis along the radial direction of the filter box 1; during this process, the inclined surface on the other side of the wedge block 6 will reduce the resistance to the movement of the wedge block 6 so that the wedge block 6 can contact the filter element 3.

[0048] The wedge 6 and the filter element 3 are squeezed together to restrict the filter element 3 from sliding on the fixed frame 102, so as to avoid gaps between the filter element 3 and the vent pipe 101, which would lead to sealing failure and thus improve the protection of the combustion chamber. The filter element 3 and the filter box 1 are connected by fasteners, which can effectively avoid the installation being unstable due to dust accumulation and reduce the labor and time costs of cleaning the filter box 1.

[0049] As a further embodiment of this utility model, the fastener also includes multiple sets of sliders 5 slidably installed inside the filter box 1. A first sliding post 501 and a sliding groove 502 are fixedly installed on the slider 5. A second sliding post 601 that is slidably connected to the sliding groove 502 is fixedly installed on the wedge block 6. A rotating ring 4 is rotatably installed inside the filter box 1. Multiple sets of inclined grooves 401 that are slidably engaged with the first sliding post 501 are provided on the rotating ring 4.

[0050] In this embodiment, during the movement of the wedge block 6, the second sliding column 601 will slide in the sliding groove 502.

[0051] When the filter element 3 needs to be disassembled, rotate the rotating ring 4, thereby driving the inclined groove 401 to rotate synchronously. At this time, through the squeezing action of the first sliding column 501 of the inclined groove 401, the slider 5 will be driven to slide on the filter box 1, thereby driving the wedge 6 to move away from the axis along the radial direction of the filter box 1, thereby releasing the contact state between the wedge 6 and the filter element 3, so as to facilitate the disassembly of the filter element 3.

[0052] The wedge 6 and the filter element 3 are squeezed together to restrict the filter element 3 from sliding on the fixed frame 102, so as to avoid gaps between the filter element 3 and the vent pipe 101, which would lead to sealing failure and thus improve the protection of the combustion chamber. The filter element 3 and the filter box 1 are connected by fasteners, which can effectively avoid the installation being unstable due to dust accumulation and reduce the labor and time costs of cleaning the filter box 1.

[0053] As a further embodiment of this utility model, the connecting member includes multiple sets of fixed sleeves 103 fixedly installed inside the filter box 1. A sliding sleeve 8 is slidably fitted inside the fixed sleeve 103. A rotating rod 9, which is rotatably connected to the fixed sleeve 103, is sleeved inside the sliding sleeve 8. The rotating rod 9 is fixedly connected to the limiting plate 10. Multiple sets of grooves are formed on the rotating rod 9. A protruding post 801, which is slidably fitted into the grooves, is fixedly installed on the sliding sleeve 8. A second spring 11 is provided inside the fixed sleeve 103. The two ends of the second spring 11 abut against the fixed sleeve 103 and the sliding sleeve 8, respectively.

[0054] As a further embodiment of this utility model, the groove group includes a first vertical groove 901, a first inclined groove 902, a second vertical groove 903, and a second inclined groove 904; wherein, one end of the first vertical groove 901 is connected to one end of the first inclined groove 902, the other end of the first inclined groove 902 is connected to one end of the second vertical groove 903, one end of the second vertical groove 903 is connected to one end of the second inclined groove 904, and the other end of the second inclined groove 904 is connected to the first vertical groove 901 in another set of the groove group.

[0055] In this embodiment, the installation process of the cover plate 2 is as follows: the filter box 1 and the cover plate 2 are slidably connected, and an external force is applied to make the cover plate 2 slide inward in the filter box 1. During this process, the limiting plate 10 will cross the limiting groove 202; at this time, the cover plate 2 will abut against the sliding sleeve 8; then the external force is continued to be applied, so that the cover plate 2 drives the sliding sleeve 8 to slide inward in the fixed sleeve 103 to compress the second spring 11. At this time, the protruding post 801 will slide in the groove to drive the rotating rod 9 to rotate.

[0056] The protruding post 801 will first slide in the first vertical groove 901 towards the first inclined groove 902, at which time the rotating rod 9 will not rotate; then the protruding post 801 will slide in the first inclined groove 902 towards the second vertical groove 903. Through the squeezing action of the protruding post 801 on the first inclined groove 902, the rotating rod 9 will be driven to rotate, thereby driving the limiting plate 10 to rotate.

[0057] After the external force is removed, under the elastic force of the second spring 11, the sliding sleeve 8 will move outward within the fixed sleeve 103. At this time, the protruding column 801 will first slide in the second vertical groove 903 towards the second inclined groove 904, and the rotating rod 9 will not rotate. Then, the protruding column 801 will slide in the second inclined groove 904 towards the first vertical groove 901. Through the squeezing action of the protruding column 801 on the groove wall of the second inclined groove 904, the rotating rod 9 can be driven to rotate. During this process, the rotating rod 9 will drive the limiting plate 10 to rotate synchronously, thereby causing the limiting plate 10 to be misaligned with the limiting groove 202. The sliding sleeve 8 will drive the cover plate 2 to slide outward a distance within the filter box 1 until the cover plate 2 abuts against the limiting plate 10.

[0058] Connecting the cover plate 2 to the filter box 1 with the connector can effectively improve the installation efficiency. After the cover plate 2 is connected to the filter box 1, it can protect the filter element 3, thereby increasing the service life of the filter element 3.

[0059] As a further improvement of this utility model, the rotating ring 4 has multiple sets of slots.

[0060] In this embodiment, the slot allows for easy rotation of the rotating ring 4, thereby improving disassembly and maintenance efficiency.

[0061] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. An intake filter structure for a fuel engine assembly, comprising a filter box (1), wherein a vent pipe (101) and a mounting bracket (102) are fixedly installed on the filter box (1). Its features are, It also includes a cover plate (2), on which an air inlet pipe (201) is fixedly installed and a limiting groove (202) is provided; A connector, provided on the filter box (1), includes a limiting plate (10) for engaging with the limiting groove (202). It also includes a filter element (3) that slides and fits into the fixing frame (102); the filter element (3) has multiple sets of filter holes (301); Fasteners include multiple sets of wedges (6) for engaging with the filter element (3), the multiple sets of wedges (6) being equidistantly arranged to slide along the circumference of the filter box (1).

2. The intake filter structure of a fuel engine set according to claim 1, characterized in that, The fastener also includes multiple sets of first springs (7) disposed in the filter box (1); the two ends of the first springs (7) respectively abut against the wedge (6) and the filter box (1).

3. The intake filter structure of a fuel engine set according to claim 2, characterized in that, The fastener also includes multiple sets of sliders (5) that are slidably installed in the filter box (1). A first sliding column (501) and a sliding groove (502) are fixedly installed on the slider (5). A second sliding column (601) that is slidably connected to the sliding groove (502) is fixedly installed on the wedge (6). A rotating ring (4) is rotatably installed in the filter box (1). Multiple sets of inclined grooves (401) that are slidably engaged with the first sliding column (501) are opened on the rotating ring (4).

4. The intake filter structure of a fuel engine assembly according to claim 1, characterized in that, The connector includes multiple sets of fixed sleeves (103) fixedly installed in the filter box (1). A sliding sleeve (8) is slidably fitted inside the fixed sleeve (103). A rotating rod (9) rotatably connected to the fixed sleeve (103) is sleeved inside the sliding sleeve (8). The rotating rod (9) is fixedly connected to the limiting plate (10). Multiple sets of grooves are opened on the rotating rod (9). A protruding post (801) slidably fitted into the groove is fixedly installed on the sliding sleeve (8). A second spring (11) is provided inside the fixed sleeve (103). The two ends of the second spring (11) abut against the fixed sleeve (103) and the sliding sleeve (8), respectively.

5. The intake filter structure of a fuel engine assembly according to claim 4, characterized in that, The groove group includes a first vertical groove (901), a first inclined groove (902), a second vertical groove (903), and a second inclined groove (904); wherein, one end of the first vertical groove (901) is connected to one end of the first inclined groove (902), the other end of the first inclined groove (902) is connected to one end of the second vertical groove (903), one end of the second vertical groove (903) is connected to one end of the second inclined groove (904), and the other end of the second inclined groove (904) is connected to the first vertical groove (901) in another set of the groove group.

6. The intake filter structure of a fuel engine set according to claim 3, characterized in that, The rotating ring (4) has multiple sets of slots.

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