Octagonal cover

Abstract

The octagonal cover comprises a filter element cover, a filter shell, a filter element structure and a taking structure, the filter element cover is installed in the filter shell, the filter element structure is installed at the lower end of the filter element cover, the taking structure is arranged at the upper end of the filter element cover, and trapezoidal protrusions are distributed on the surface of the filter element cover in an annular array mode. Outer edge bulges are arranged at two end corners of the outer surfaces of the trapezoidal bulges, the outer edge bulges are arranged in the middles of the trapezoidal bulges, a T-shaped groove is formed between every two adjacent groups of trapezoidal bulges, the outer edge bulges are in contact with the inner surface of the filter shell, and a flowing cavity is formed among the trapezoidal bulges, the outer edge bulges and the filter shell. The utility model solves the problems that the cover of the filter element in the existing filter splashes oil in the filter element due to negative pressure during disassembly, fingers are possibly scratched due to poor treatment of burrs on the surface of the cover, and the rigidity and the compression capacity are low.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technical field, concretely is a octagonal lid. BACKGROUND

[0002] Filter is a kind of fluid, gas is filtered device, generally all filter shell, filter core, end cap composition, its filter source generally through pipeline enters into filter core inside, then by the filtration of filter core, from the outside of filter core by pipeline again to outside, to filter effect, but the end cap of filter of present is round setting, when needing to carry out filter core replacement, if there is oil in filter core and between filter core and filter shell, due to the action of negative pressure, when taking out end cap, oil will be taken out together, make oil splash, cause the situation of cleaning more troublesome to appear.

[0003] Secondly, when end cap and filter core are installed, generally need to carry out film covering to filter core surface, to enhance the filtering effect, but in film covering process, operator needs to hold end cap, and some end caps are circular, secondly, if surface is not handled in place due to burr, it can cause the risk of finger scratch, and when rotating, it can be influenced by the surface without protruding and be turned over.

[0004] Secondly, when filter inside is under certain pressure condition, rigidity is poor, and deformation is prone to occur under pressure, to indirectly cause the problem of filter core damage.

[0005] Therefore, in order to prevent oil splashing due to the action of negative pressure when disassembling end cap, secondly, in order to prevent the problem of finger scratch caused by burr on the surface of end cap, and can improve the rigidity and pressure capacity of existing end cap, hereby an octagonal lid is proposed, to solve the technical problems in the prior art. INVENTION CONTENTS

[0006] In view of the deficiencies of the prior art, the utility model provides an octagonal lid, solves the problems that the cover of filter core in the prior art causes internal oil splashing due to negative pressure when disassembling and can cause finger scratch due to poor burr treatment on the surface of cover, secondly, the problems of low rigidity and pressure capacity.

[0007] To achieve the above object, the utility model provides the following technical scheme: an octagonal cover, including filter core cover, filter shell, filter core structure, take structure, the filter core cover is installed in the filter shell, the filter core structure is installed in the lower end of filter core cover, take structure sets up in the upper end part of filter core cover, the surface of filter core cover is annular array distribution has trapezoidal protruding, both end angles of trapezoidal protruding outer surface all is equipped with outer edge protruding, outer edge protruding sets up in the middle of trapezoidal protruding, forms T type groove between two adjacent groups of trapezoidal protruding, outer edge protruding and filter shell inner surface contact, trapezoidal protruding, outer edge protruding, filter shell form flowing cavity between.

[0008] Through the above technical scheme, further, the trapezoidal protruding and filter core cover junction do arc processing, secondly in the both end angle of trapezoidal protruding also do arc processing, wherein outer edge protruding sets up on the arc surface.

[0009] Further, the outer edge protruding and the arc surface contact end do arc processing, the end of the outer edge protruding also do arc processing, the cross section of the outer edge protruding is triangular.

[0010] As a preferred technical scheme, the angle between the outer surface of the trapezoidal protrusion and the side surface is 45°.

[0011] Further, the filter core structure includes a filter core mounting frame and a filter core, wherein the filter core mounting frame is transversely mounted in the filter shell and passes through the filter core cover, and the filter core is mounted on the surface of the filter core mounting frame.

[0012] As a preferred technical scheme, the take structure includes a mounting piece and a take handle, the mounting piece is symmetrically mounted on the upper end of the filter core cover, and the take handle is movably mounted on the mounting piece.

[0013] Compared with the prior art, the utility model provides an octagonal cover, which has the following beneficial effects:

[0014] When the filter core needs to be replaced and removed in the filter, the filter core cover is directly removed, and due to the trapezoidal protrusions on the edges, there is space between the two adjacent protrusions, which can prevent the internal pressure of the filter from being too high, causing the oil to be splashed when the filter core cover is removed due to the negative pressure effect.

[0015] Due to the effect of the outer edge protrusion, the pressure borne by the outer edge protrusion can be evenly diffused to the trapezoidal protrusion at this time, the outer edge protrusion is in contact with the inner surface of the filter shell, the thickness is increased through the effect of the trapezoidal protrusion and the outer edge protrusion, the rigidity is improved, the design of the flow cavity can further disperse and relieve the pressure, reduce the risk of deformation of the filter core cover due to uneven stress, the protrusion structure can guide the fluid to be more evenly distributed on the surface of the end cover, reduce the retention and vortex of the fluid on the end cover, the cavity can be used as a fluid channel to facilitate the smooth flow of fluid between the filter core and the shell, and improve the filtering efficiency.

[0016] Secondly, the outer surface of the trapezoidal protrusion 2 is 45° with the side surface, and the 45° angle protrusion design can more effectively disperse the pressure from all directions, thereby enhancing the stability of the entire structure, and the 45° angle protrusion structure helps to guide the fluid to flow more smoothly through the surface of the end cover, reducing the retention and vortex of the fluid between the protrusions and the depressions.

[0017] The effect of the outer edge protrusion can provide a better gripping or rotating surface, so that when the filter core cover is taken out, the problem of finger cuts caused by burrs on the surface is avoided, and the effect of the trapezoidal protrusion can facilitate the rotation of the filter core during film coating. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the utility model;

[0019] Figure 2 It is a front view structure schematic diagram of the utility model Figure 1 ;

[0020] Figure 3 It is a bottom view structure schematic diagram of the utility model Figure 1 ;

[0021] Figure 4 It is a local enlarged structure schematic diagram of the utility model Figure 1 ;

[0022] Figure 5 It is a filter core structure and flow cavity distribution position schematic diagram of the utility model;

[0023] Figure 6 It is a stress point dispersion schematic diagram of the outer edge protrusion of the utility model;

[0024] Figure 7 It is a trapezoidal protrusion structure schematic diagram of the utility model.

[0025] In the drawing: 1, filter core cover; 2, trapezoidal protrusion; 3, mounting piece; 4, take the take handle; 5, outer edge protrusion; 6, filter shell; 7, filter core mounting frame; 8, filter core; 9, flow cavity. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment

[0027] Please refer to Figures 1-7 The utility model provides the following technical scheme: an octagonal cover, including filter core cover 1, filter shell 6, filter core structure, take structure, filter core cover 1 installs in filter shell 6, filter core structure installs at the lower end of filter core cover 1, take structure sets up at the upper end of filter core cover 1, the surface of filter core cover 1 is annular array distribution has trapezoidal protrusion 2, both end angles of trapezoidal protrusion 2 outer surface are equipped with outer edge protrusion 5, outer edge protrusion 5 sets up in the middle of trapezoidal protrusion 2, forms T type groove between two adjacent groups of trapezoidal protrusion 2, outer edge protrusion 5 and filter shell 6 inner surface contact, forms flowing cavity 9 between trapezoidal protrusion 2, outer edge protrusion 5, filter shell 6.

[0028] In the embodiment, the specific working principle is: through the action of trapezoidal protrusion 2, so that the flowing cavity 9 is formed between two adjacent groups of trapezoidal protrusion 2 and filter shell 6 and between outer edge protrusion 5, when taking filter core cover 1, through the take structure, it will not cause the problem of internal oil liquid splash due to the pressure effect in filter shell 6.

[0029] Secondly, according to the above, in order to be able to realize the uniform stress of pressure, improve the rigidity of filter core cover 1, specifically can refer to Figure 4 It can be seen that the connection between trapezoidal protrusion 2 and filter core cover 1 is treated with arc, and the two end angles of trapezoidal protrusion 2 are also treated with arc, wherein the outer edge protrusion 5 is arranged on the arc surface, through the action of trapezoidal protrusion 2 and outer edge protrusion 5, the thickness of filter core cover 1 is increased, and in combination with Figure 6 It can be seen that the stress of pressure is transmitted to trapezoidal protrusion 2 from outer edge protrusion 5, which helps to diffuse the pressure from a point to the edge, so that the pressure distribution is more uniform, thereby enhancing the stability of the overall structure.

[0030] In order to further improve the stability of the overall structure and reduce the direct current and eddy current between the protrusions and the depressions, specifically can refer to Figure 7 It can be seen that the contact end of outer edge protrusion 5 and the arc surface is treated with arc, and the end of outer edge protrusion 5 is also treated with arc, and the cross section of outer edge protrusion 5 is triangular.

[0031] Secondly, according to the above, the outer surface of the trapezoidal protrusion 2 and the side surface are at an angle of 45°, the protrusion designed at an angle of 45° can more effectively disperse the pressure from all directions, thereby enhancing the stability of the entire structure, the protrusion structure at an angle of 45° helps to guide the fluid to flow more smoothly over the surface of the end cover, reducing the retention and vortex of the fluid between the protrusion and the depression.

[0032] The filter core structure is consistent with the existing filter core structure without change, and details can be referred to Figure 5 As can be seen, the filter core structure includes a filter core mounting frame 7 and a filter core 8, wherein the filter core mounting frame 7 is transversely mounted in the filter housing 6 and passes through the filter core cover 1, and the filter core 8 is mounted on the surface of the filter core mounting frame 7.

[0033] In order to facilitate the removal of the filter core cover 1, details can be referred to Figure 1 As can be seen, the taking structure includes a mounting piece 3 and a taking handle 4, the mounting piece 3 is symmetrically mounted on the upper end of the filter core cover 1, and the taking handle 4 is movably mounted on the mounting piece 3.

[0034] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An octagonal cover, comprising a filter element cover (1), a filter housing (6), a filter element structure, and a retrieval structure, wherein the filter element cover (1) is installed inside the filter housing (6), the filter element structure is installed at the lower end of the filter element cover (1), and the retrieval structure is disposed at the upper end of the filter element cover (1), characterized in that: The filter element cover (1) has trapezoidal protrusions (2) arranged in a ring array on its surface. The outer corners of the outer surface of the trapezoidal protrusions (2) are provided with outer edge protrusions (5). The outer edge protrusions (5) are located in the middle of the trapezoidal protrusions (2). A T-shaped groove is formed between two adjacent sets of trapezoidal protrusions (2). The outer edge protrusions (5) are in contact with the inner surface of the filter housing (6). A flow cavity (9) is formed between the trapezoidal protrusions (2), the outer edge protrusions (5), and the filter housing (6).

2. An octagonal cap according to claim 1, characterized in that: The trapezoidal protrusion (2) is connected to the filter cover (1) with a rounded arc. The two corners of the trapezoidal protrusion (2) are also rounded. The outer edge protrusion (5) is set on the rounded arc surface.

3. An octagonal cap according to claim 1, characterized in that: The outer edge protrusion (5) is made to be rounded at the end of the arc surface, and the end of the outer edge protrusion (5) is also made to be rounded. The cross-section of the outer edge protrusion (5) is triangular.

4. An octagonal cap according to claim 1, characterized in that: The outer edge protrusion (5) bears the pressure of the filter housing (6). This pressure acts on the arc surface at the end of the outer edge protrusion (5) and is distributed to the trapezoidal protrusion (2) through the outer edge protrusion (5).

5. An octagonal cap according to claim 1, characterized in that: The trapezoidal protrusion (2) has an angle of 45° between its outer surface and side surface.

6. An octagonal cap according to claim 1, characterized in that: The filter element structure includes a filter element mounting bracket (7) and a filter element (8). The filter element mounting bracket (7) is horizontally installed inside the filter housing (6) and passes through the filter element cover (1). The filter element (8) is installed on the surface of the filter element mounting bracket (7).

7. An octagonal cap according to claim 1, characterized in that: The retrieval structure includes an mounting plate (3) and a retrieval handle (4). The mounting plate (3) is symmetrically mounted on the upper end of the filter cover (1), and the retrieval handle (4) is movably mounted on the mounting plate (3).

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