Air filter of ship engine

Abstract

The utility model relates to the technical field of air filters, in particular to a ship engine air filter which comprises an outer shell, a cover plate, a connector, a sealing assembly, a pipe body and stainless steel woven cloth. The bottom end of the outer shell is open, a pipe body is arranged at the top end of the inner side of the outer shell, the pipe body and the outer shell are coaxially arranged, and the bottom end of the pipe body is flush with the bottom end of the outer shell; the cover plate is mounted at the bottom ends of the pipe body and the outer shell; according to the utility model, the end surfaces of the stainless steel woven cloth, the pipe body and the outer shell are wave-shaped, so that the air inlet and outlet areas of the outer shell and the pipe body are increased, the filtering air volume in unit area is increased, and the filtering efficiency is improved; the connecting plate drives the sealing gasket to generate pressure on the end portion of the stainless steel woven cloth, the end portion of the stainless steel woven cloth is connected between the outer shell and the pipe body in a sealed mode through cooperation of the connecting plate and the sealing gasket, and the situation that the sealing performance of the end portion of the stainless steel woven cloth is poor is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to an air filter for a marine engine. Background Art

[0002] When the marine engine is in use, it is necessary to filter out moisture and impurities in the air to avoid corrosion, wear, etc.

[0003] Chinese patent publication CN221568667U discloses an air filter for marine engines. This air filter eliminates the traditional housing and filter element adhesive. Instead, the lower end cap integrates an outlet pipe, secured by several long screws. The simple structure offers excellent strength. An annular clamp surrounds the outlet pipe, facilitating securement during installation. The filter element can also be removed for cleaning, eliminating the need for replacement, significantly reducing maintenance costs.

[0004] However, in the above scheme, the filter element is installed between the inner protective tube and the outer protective tube by tightening and fixing the upper end cover and the lower end cover through a number of bolts and matching nuts that pass through the two in the vertical direction. Since the length of the inner protective tube and the outer protective tube limits the spacing between the upper end cover and the lower end cover, when the length of the filter element is the same as the length of the inner protective tube and the outer protective tube, the upper end cover and the lower end cover have poor fastening to the filter element, resulting in poor end sealing. When the length of the filter element is greater than the length of the inner protective tube and the outer protective tube, the upper end cover and the lower end cover will generate rigid pressure on the filter element after installation, causing the filter element to bend, resulting in a reduction in its service life. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a marine engine air filter.

[0006] The technical solution of the utility model is: a marine engine air filter, comprising an outer shell, a cover plate, a connector, a sealing assembly, a tube body and stainless steel woven cloth;

[0007] The bottom end of the outer shell is open, and a tube is provided at the inner top end of the outer shell. The tube is coaxially arranged with the outer shell, and the bottom end of the tube is flush with the bottom end of the outer shell.

[0008] The cover plate is installed at the bottom ends of the tube body and the outer shell; the connector is installed in the middle of the cover plate and is connected to the tube body;

[0009] The sealing assembly is arranged between the tube body and the outer shell, with one end connected to the inner top end of the tube body and the other end located at the bottom end between the outer shell and the tube body;

[0010] The number of the stainless steel braided cloths is at least two, and the two stainless steel braided cloths are respectively arranged at the outer side wall of the tube body and the inner side wall of the outer shell, and the ends of the two stainless steel braided cloths are connected to the sealing assembly.

[0011] Preferably, a third convex ring is provided at the bottom end of the tube body, a second convex ring is provided at the bottom end of the outer shell, a first convex ring is provided at the top end of the cover plate, and the first convex ring is inserted between the second convex ring and the third convex ring.

[0012] Preferably, threads are provided on the inner and outer sides of the first convex ring, and thread grooves are provided on the outer side of the third convex ring and the inner side of the second convex ring. When the first convex ring is installed in cooperation with the second and third convex rings, the threads of the first convex ring are accommodated in the thread grooves of the second and third convex rings.

[0013] Preferably, the end projections of the outer shell, the tube body and the two stainless steel woven cloths are all wavy, the two stainless steel woven cloths are respectively attached to the outer side of the tube body and the inner side of the outer shell, and the arc surfaces of the tube body and the outer shell are provided with multiple ventilation holes.

[0014] Preferably, the sealing assembly includes a connecting plate, a limiting plate and a sealing gasket;

[0015] The connecting plate is arranged at the bottom end between the outer shell and the tube body;

[0016] There are at least four limiting plates, two of which are installed on the inner top end of the outer shell with gaps between them and the inner side wall of the outer shell and the outer side wall of the tube, and the other two limiting plates are installed on the top end of the connecting plate with gaps between them and the inner side wall of the outer shell and the outer side wall of the tube.

[0017] There are multiple sealing pads, which are arranged in the gaps between the limiting plate and the outer shell and the tube body.

[0018] Preferably, the ends of the two stainless steel woven cloths are respectively located in the gaps between the two limiting plates and the outer shell and the tube body, and the gaps between the two limiting plates and the outer shell and the tube body are matched with the thickness of the stainless steel woven cloth.

[0019] Preferably, a plurality of support rods extending toward the inner top of the outer shell are provided at the top of the limit plate and above the connecting plate, and sleeves are provided at the ends of the support rods and at the bottom of the limit plate at the inner top of the outer shell.

[0020] Preferably, the sleeve is wrapped around the end of the support rod, and the side surface of the support rod is in contact with the stainless steel woven cloth.

[0021] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0022] The utility model increases the air inlet and outlet areas of the outer shell and the tube body by making the end faces of the stainless steel woven cloth, the tube body and the outer shell all have wavy shapes, thereby increasing the filtered air volume per unit area and improving the filtering efficiency. When the stainless steel woven cloth is installed, the cover plate generates pressure on the connecting plate, so that the connecting plate drives the sealing gasket to generate pressure on the end of the stainless steel woven cloth, so that the connecting plate and the sealing gasket cooperate to seal the end of the stainless steel woven cloth between the outer shell and the tube body, avoiding the situation where the end of the stainless steel woven cloth has poor sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the cover plate separation structure in an embodiment of the present invention.

[0025] Figure 3 This is a schematic cross-sectional view of the overall structure of an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the connection structure between the cover plate, the outer shell and the tube body in an embodiment of the present invention.

[0027] Figure 5 This is a schematic structural diagram of a sealing assembly in an embodiment of the present invention.

[0028] Figure 6 The figure is a schematic diagram of the connection structure between the support rod and the sleeve in an embodiment of the present invention.

[0029] Figure numerals: 1. outer shell; 2. cover plate; 3. connector; 4. ventilation hole; 5. sealing assembly; 51. connecting plate; 52. limit plate; 53. sealing gasket; 54. support rod; 55. sleeve; 6. tube body; 7. stainless steel woven cloth; 8. first convex ring; 9. second convex ring; 10. third convex ring. DETAILED DESCRIPTION

[0030] Example 1

[0031] like Figure 1-6 As shown, the marine engine air filter proposed by the present invention comprises an outer shell 1, a cover plate 2, a connector 3, a sealing assembly 5, a tube body 6 and a stainless steel woven cloth 7;

[0032] The bottom end of the outer shell 1 is open, and a tube 6 is provided at the inner top end of the outer shell 1. The tube 6 is coaxially arranged with the outer shell 1, and the bottom end is flush with the bottom end of the outer shell 1. The tube 6 and the outer shell 1 are detachably mounted, and the mounting method is any one of bolt connection, plug connection or scarf connection (not shown in the figure);

[0033] The cover plate 2 is installed at the bottom end of the tube body 6 and the outer shell 1; the connector 3 is installed in the middle of the cover plate 2 and communicates with the tube body 6;

[0034] The sealing assembly 5 is disposed between the tube body 6 and the outer shell 1 , with one end connected to the inner top end of the tube body 6 and the other end located at the bottom end between the outer shell 1 and the tube body 6 ;

[0035] There are at least two stainless steel woven cloths 7, which are respectively arranged on the outer wall of the tube body 6 and the inner wall of the outer shell 1, and the ends are connected to the sealing assembly 5. It should be noted that the mesh count of the multiple stainless steel woven cloths 7 gradually increases from the outer shell 1 to the tube body 6, so that the air is filtered in stages.

[0036] In an optional embodiment, the end projections of the outer shell 1, the tube body 6 and the two stainless steel woven cloths 7 are all wavy, and the two stainless steel woven cloths 7 are respectively fitted and connected to the outer side of the tube body 6 and the inner side of the outer shell 1, and the arc surfaces of the tube body 6 and the outer shell 1 are provided with multiple ventilation holes 4.

[0037] In this embodiment, an annular cavity with an open bottom end is formed between the inner side of the outer shell 1 and the outer shell 1 by installing the tube 6, and one end of the sealing component 5 is installed at the inner top of the outer shell 1, and two stainless steel woven cloths 7 are respectively located at the outer side wall of the tube 6 and the inner side wall of the outer shell 1 and plugged into one end of the sealing component 5, and the other end of the sealing component 5 is moved toward the annular cavity so that the other end of the sealing component 5 contacts the end of the stainless steel woven cloth 7 and is slidably connected with the inner side wall of the outer shell 1 and the outer side wall of the tube 6, and the cover plate 2 is simultaneously The driving connector 3 is installed at the end of the tube body 6 and the outer shell 1. When the cover plate 2 is installed, the cover plate 2 squeezes the other end of the sealing component 5, so that the other end of the sealing component 5 generates pressure on the stainless steel woven cloth 7, fixes the sealing component 5 to the end of the stainless steel woven cloth 7, and seals the end of the stainless steel woven cloth 7 in the cavity between the outer shell 1 and the tube body 6. At the same time, the end face shape of the stainless steel woven cloth 7, the tube body 6 and the outer shell 1 increases the inlet and outlet areas of the outer shell 1 and the tube body 6, thereby increasing the filtered air volume per unit area.

[0038] Example 2

[0039] like Figure 4 As shown, the present invention proposes a marine engine air filter. Compared with the first embodiment, in this embodiment, a third convex ring 10 is provided at the bottom end of the tube body 6, a second convex ring 9 is provided at the bottom end of the outer shell 1, and a first convex ring 8 is provided at the top end of the cover plate 2. The first convex ring 8 is inserted between the second convex ring 9 and the third convex ring 10 and contacts the sealing assembly 5.

[0040] It should be noted that threads are provided on the inner and outer sides of the first convex ring 8, and thread grooves are provided on the outer side of the third convex ring 10 and the inner side of the second convex ring 9. When the first convex ring 8 is installed in cooperation with the second convex ring 9 and the third convex ring 10, the threads of the first convex ring 8 are accommodated in the thread grooves of the second convex ring 9 and the third convex ring 10.

[0041] In this embodiment, the cover plate 2 is detachably mounted on the outer shell 1 and the tube body 6 by means of the first convex ring 8, the second convex ring 9 and the third convex ring 10, and when the first convex ring 8 moves between the outer shell 1 and the tube body 6, the first convex ring 8 drives the sealing assembly 5 to squeeze the stainless steel woven cloth 7, so that the sealing assembly 5 is detachably mounted between the outer shell 1 and the tube body 6, and the first convex ring 8 drives the sealing assembly 5 to seal the cavity opening formed between the outer shell 1 and the tube body 6.

[0042] Example 3

[0043] like Figure 4-6 As shown, the present invention provides a marine engine air filter. Compared with the first embodiment, in this embodiment, the sealing assembly 5 includes a connecting plate 51, a limiting plate 52 and a sealing gasket 53;

[0044] The connecting plate 51 is provided at the bottom end between the outer shell 1 and the tube body 6, and the inner side and the outer side are slidably connected to the outer side of the outer shell 1 and the inner side of the outer shell 1 respectively;

[0045] There are at least four limiting plates 52, two of which are mounted on the inner top end of the outer shell 1 with gaps between them and the inner side wall of the outer shell 1 and the outer side wall of the tube 6, and the other two limiting plates 52 are mounted on the top end of the connecting plate 51 with gaps between them and the inner side wall of the outer shell 1 and the outer side wall of the tube 6.

[0046] There are multiple sealing gaskets 53 , which are arranged in the gaps between the limiting plate 52 and the outer shell 1 and the tube body 6 , wherein the sealing gaskets 53 are made of soft material.

[0047] In an optional embodiment, the ends of the two stainless steel woven cloths 7 are respectively located in the gaps between the two limiting plates 52 and the outer shell 1 and the tube body 6, and the gap values ​​between the two limiting plates 52 and the outer shell 1 and the tube body 6 are arranged in coordination with the thickness value of the stainless steel woven cloth 7.

[0048] In this embodiment, the four limiting plates 52 are fixed in pairs to the inner top end of the outer shell 1 and the upper end face of the connecting plate 51, and there is a spacing between the limiting plates 52 and the edges of the connecting plates 51, so that there is a slot for placing the stainless steel woven cloth 7 between the inner limiting plate 52 of the outer shell 1 and the outer wall of the tube body 6 and between the limiting plate 52 and the inner wall of the outer shell 1. At the same time, the side of the limiting plate 52 on the upper end face of the slot and the connecting plate 51, when one end of the stainless steel woven cloth 7 is inserted into the slot, the connecting plate 51 drives the limiting plate 52 and the sealing gasket 53 to move toward the annular cavity between the outer shell 1 and the tube body 6, so that the connecting plate 51 drives the limiting plate 52 and the outer wall of the tube body 6 and the inner wall of the outer shell 1 to form a slot for the other end of the stainless steel woven cloth 7, and at the same time, the sealing gasket 53 contacts the stainless steel woven cloth 7 in the slot and seals the end of the stainless steel woven cloth 7 in the slot.

[0049] Example 4

[0050] like Figure 5-6 As shown, the present invention proposes a marine engine air filter. Compared with the third embodiment, in this embodiment, a plurality of support rods 54 extending toward the inner top end of the outer shell 1 are provided at the top end of the limiting plate 52 and above the connecting plate 51, and a sleeve 55 is provided at the end of the support rod 54 and the bottom end of the limiting plate 52 located at the inner top end of the outer shell 1. It should be noted that the sleeve 55 is wrapped around the end of the support rod 54, and the side of the support rod 54 is in contact with the stainless steel woven cloth 7.

[0051] In this embodiment, the connecting plate 51 drives the support rod 54 to move along the side of the stainless steel woven cloth 7 toward the inner top end of the outer shell 1 through the limiting plate 52, and the end of the support rod 54 is inserted into the sleeve 55, so that the support rod 54 limits the stainless steel woven cloth 7 between the support rod 54 and the outer wall of the tube body 6 and between the support rod 54 and the inner wall of the outer shell 1, so that the support rod 54 fixes the stainless steel woven cloth 7 and improves the use strength of the stainless steel woven cloth 7.

[0052] In summary, when the present invention is in use, the four limiting plates 52 are fixed in pairs to the inner top end of the outer shell 1 and the upper end surface of the connecting plate 51, so that when the limiting plate 52 is located between the outer shell 1 and the tube body 6, a groove is formed with the outer shell 1 and the tube body 6 to connect the end of the stainless steel woven cloth 7, and the sealing gasket 53 is installed in the groove. When in use, the stainless steel woven cloth 7 is installed in the groove at the inner top end of the outer shell 1 along the inner side wall of the outer shell 1 and the outer side wall of the tube body 6, and the limiting plate 52 and the sealing gasket 53 are driven by the connecting plate 51 to move to the annular cavity between the outer shell 1 and the tube body 6, so that the other end of the stainless steel woven cloth 7 is located in the groove formed between the limiting plate 52 on the connecting plate 51 and the outer side wall of the tube body 6 and the inner side wall of the outer shell 1, and the first convex ring 8 is threadedly connected to the first convex ring 8 through the cover plate 2. The second convex ring 9 and the third convex ring 10 are interlaced, and the cover plate 2 is tightly attached to the bottom ends of the second convex ring 9 and the third convex ring 10. During the movement of the first convex ring 8, the first convex ring 8 squeezes the connecting plate 51, so that the distance between the connecting plate 51 and the inner top end of the outer shell 1 is reduced by the stainless steel woven cloth 7 and the compression sealing gasket 53. At the same time, the connecting plate 51 is fixed between the end of the stainless steel woven cloth 7 and the outer shell 1 and the tube body 6, and the stainless steel woven cloth 7 is sealed and installed between the outer shell 1 and the tube body 6. The first convex ring 8 blocks the annular cavity opening between the outer shell 1 and the tube body 6, and the end faces of the stainless steel woven cloth 7, the tube body 6 and the outer shell 1 are all wavy, so that the inlet and outlet air areas of the outer shell 1 and the tube body 6 are increased, the filtered air volume per unit area is increased, and the filtration efficiency is improved.

[0053] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A marine engine air filter, characterized in that: It comprises an outer shell (1), a cover plate (2), a connector (3), a sealing assembly (5), a tube (6) and a stainless steel woven cloth (7); The bottom end of the outer shell (1) is open, and a tube (6) is provided at the inner top end of the outer shell (1). The tube (6) is coaxially arranged with the outer shell (1), and the bottom end thereof is flush with the bottom end of the outer shell (1); The cover plate (2) is installed at the bottom ends of the tube body (6) and the outer shell (1); the connector (3) is installed in the middle of the cover plate (2) and is in communication with the tube body (6); The sealing assembly (5) is arranged between the tube body (6) and the outer shell (1), with one end connected to the inner top end of the tube body (6) and the other end located at the bottom end between the outer shell (1) and the tube body (6); The number of the stainless steel braided cloths (7) is at least two, and the two stainless steel braided cloths (7) are respectively arranged on the outer side wall of the tube body (6) and the inner side wall of the outer shell (1), and both ends are connected to the sealing assembly (5).

2. A marine engine air filter according to claim 1, characterized in that: The bottom end of the tube body (6) is provided with a third convex ring (10), the bottom end of the outer shell (1) is provided with a second convex ring (9), the top end of the cover plate (2) is provided with a first convex ring (8), and the first convex ring (8) is inserted between the second convex ring (9) and the third convex ring (10).

3. The marine engine air filter according to claim 2, characterized in that: The inner and outer sides of the first convex ring (8) are both provided with threads, the outer side of the third convex ring (10) and the inner side of the second convex ring (9) are both provided with thread grooves, and when the first convex ring (8) is in a state of being mounted in conjunction with the second convex ring (9) and the third convex ring (10), the threads of the first convex ring (8) are accommodated in the thread grooves of the second convex ring (9) and the third convex ring (10).

4. The marine engine air filter according to claim 1, characterized in that: The projections of the ends of the outer shell (1), the tube (6) and the two stainless steel woven cloths (7) are all wavy. The two stainless steel woven cloths (7) are respectively connected to the outer side of the tube (6) and the inner side of the outer shell (1). The arc surfaces of the tube (6) and the outer shell (1) are both provided with a plurality of ventilation holes (4).

5. The marine engine air filter according to claim 1, characterized in that: The sealing assembly (5) includes a connecting plate (51), a limiting plate (52) and a sealing gasket (53); A connecting plate (51) is provided at the bottom end between the outer shell (1) and the tube body (6); The number of the limiting plates (52) is at least four, two of which are installed on the inner top end of the outer shell (1) with gaps between them and the inner side wall of the outer shell (1) and the outer side wall of the tube (6), and the other two limiting plates (52) are installed on the top end of the connecting plate (51) with gaps between them and the inner side wall of the outer shell (1) and the outer side wall of the tube (6). There are multiple sealing gaskets (53), and the sealing gaskets (53) are arranged in the gaps between the limiting plate (52), the outer shell (1) and the tube body (6).

6. The marine engine air filter according to claim 5, characterized in that: The ends of the two stainless steel woven cloths (7) are respectively located in the gaps between the two limiting plates (52) and the outer shell (1) and the tube body (6), and the gaps between the two limiting plates (52) and the outer shell (1) and the tube body (6) are arranged in coordination with the thickness of the stainless steel woven cloths (7).

7. The marine engine air filter according to claim 5, characterized in that: A plurality of support rods (54) extending toward the inner top of the outer shell (1) are provided at the top of the limiting plate (52) and above the connecting plate (51), and sleeves (55) are provided at the ends of the support rods (54) and at the bottom of the limiting plate (52) located at the inner top of the outer shell (1).

8. The marine engine air filter according to claim 7, characterized in that: The sleeve (55) is wrapped around the end of the support rod (54), and the side surface of the support rod (54) is in contact with the stainless steel braided cloth (7).

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