Fuel filter structure

Abstract

The utility model belongs to filter technical field, concretely is a kind of fuel filter structure, including shell;The shell bottom is passed through solid connection and has liquid outlet;The shell top is contacted with cover plate;The cover plate top is passed through solid connection and has liquid inlet;Filtering column is slid in the shell inner wall;The cover plate bottom is equipped with the insertion slot;The shell top is specifically inserted in the inner wall of insertion slot;Threaded rod is rotatably connected to the cover plate side wall and penetrates;The threaded rod outer wall is connected with arc plate by screwing;Arc plate is slidably connected to the inner wall of cover plate;Limiting rod is fixed to the arc plate side wall;The limiting rod is slidably connected in the middle part of cover plate and penetrates, move by rotating threaded rod control arc plate and limiting rod together, by this method, the limiting between shell and cover plate can be removed by contacting limiting rod, so that shell and cover plate can be easily separated, without using tool pry cover plate, improve the convenience.

Description

TECHNICAL FIELD

[0001] The utility model belongs to filter technical field, specifically is a fuel filter structure. BACKGROUND

[0002] Fuel filter is the key component in the fuel system of internal combustion engine, mainly used for filtering the impurities (such as particulate matter, moisture, colloid, etc.) in fuel, to ensure fuel cleanliness, protect precision components such as fuel nozzle, high-pressure pump from wear or blockage, with the development of engine technology and the improvement of environmental protection requirements, the precision and pressure of fuel injection system are continuously improved, higher requirements are put forward to the filtering efficiency, dust holding capacity and durability of filter.

[0003] In the prior art, in the design of fuel filter, the shell and the sealing cover are usually connected by high-strength bonding or interference fit, which will cause the shell or the sealing cover to be deformed or cracked due to uneven stress when the filter element is repaired or replaced by using screwdrivers, crowbars and other tools, and the operation is time-consuming and laborious, therefore, a fuel filter structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the utility model provides a fuel filter structure.

[0005] The utility model discloses a fuel filter structure, including the shell, the shell bottom is passed through solid joint and has the liquid outlet, the shell top is contacted with the cover, the cover top is passed through solid joint and has the liquid inlet, the shell inner wall slides the filter column, the cover bottom is seted up and is inserted into the slot, the shell top is inserted in the inner wall of the slot specifically, the cover lateral wall is passed through rotationally connected with screw rod, the screw rod outer wall is connected with the arc plate, the arc plate slidingly connects in the inner wall of cover, the arc plate lateral wall is fixedly connected with the limit rod, the limit rod is passed through slidingly connected in the middle part of cover, the inner wall of the shell top is seted up and is limited the slot, the limit rod is contacted in the inner wall of the limit slot, the arc plate end is hinged with the connecting plate, the connecting plate end is hinged with the sliding block, the cover inner wall is seted up and has the rectangular slot, the sliding block top slidingly connects in the inner wall of rectangular slot.

[0006] Preferably, the inner wall of the shell is provided with a sliding groove, the inner wall of the sliding groove is elastically connected with a top plate through a spring, the end of the top plate is slidingly connected with the inner wall of the sliding groove, one end of the spring is fixedly connected with the bottom of the top plate, the other end of the spring is fixedly connected with the inner wall of the sliding groove, the top of the top plate is fixedly connected with a plug-in rod, the bottom of the filter column is provided with a positioning slot, and the plug-in rod is in contact with the inner wall of the positioning slot.

[0007] Preferably, the bottom end inner wall of the cover plate is fixedly connected with a sealing ring; the top end outer wall of the shell is provided with a sealing groove; and the sealing ring contacts the inner wall of the sealing groove.

[0008] Preferably, the arc-shaped plates, the limiting rods and the connecting plates are provided in multiple groups; and the multiple groups of arc-shaped plates, limiting rods and connecting plates are symmetrically arranged with the center line of the sliding block as the axis of symmetry.

[0009] Preferably, the top of the shell is provided with a through groove one; and the threaded rod slides on the inner wall of the through groove one.

[0010] Preferably, the top of the filter column is provided with a through groove two; the inner wall of the top of the filter column is provided with an arc-shaped groove; the arc-shaped groove is in communication with the through groove two; the outer wall of the bottom end of the liquid inlet is fixedly connected with a cylinder; and the cylinder slides on the inner wall of the arc-shaped groove.

[0011] Preferably, the end of the threaded rod is provided with a hexagonal groove.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The fuel filter structure provided by the present application can control the arc-shaped plate and the limiting rod to move together by rotating the threaded rod, can remove the limiting between the shell and the cover plate by the method, can separate the shell and the cover plate easily, does not need to pry the cover plate by using a tool, improves the convenience, and can ensure the sealing of the shell and the cover plate by inserting the shell into the inner wall of the plug-in groove and clamping the sealing ring on the inner wall of the sealing groove.

[0014] 2. The fuel filter structure provided by the present application can move the filter column out of the shell by moving the top plate by the elasticity of the spring after the limiting contact between the shell and the cover plate, can ensure that the user can take out the filter column easily, and improves the practicability. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, constitute a part of the present application, and are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 is a perspective view of the overall device of the present application;

[0017] Figure 2 is a split cross-sectional perspective view of the shell and the cover plate in the present application;

[0018] Figure 3 is a split cross-sectional perspective view of the threaded rod and the cover plate in the present application;

[0019] Figure 4 is the perspective view of the filter column in the utility model;

[0020] Figure 5 is the split profile perspective view of the top plate and the shell in the utility model;

[0021] Figure 6 is the perspective view of the shell in the utility model.

[0022] Legend:

[0023] 1, shell;2, liquid inlet;21, cylinder;3, liquid outlet;4, threaded rod;41, arc plate;42, sealing ring;43, limiting rod;44, sliding block;45, connecting plate;46, hexagonal groove;47, limiting groove;48, through groove one;5, sealing groove;6, filter column;61, arc groove;62, through groove two;63, positioning groove;7, top plate;71, spring;72, plug-in rod;8, sliding groove;9, cover plate;10, rectangular groove;11, plug-in groove. DETAILED DESCRIPTION

[0024] 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 scope of protection of the utility model.

[0025] The specific embodiments are given below.

[0026] Please refer to Figure 1 - Figure 6The utility model provides a kind of fuel filter structure, including shell 1;The shell 1 bottom is penetrated and is fixed with liquid outlet 3;The shell 1 top is contacted with cover plate 9;The cover plate 9 top is penetrated and is fixed with liquid inlet 2;Filter column 6 is slid in the inner wall of shell 1;Plug-in slot 11 is set in the bottom of cover plate 9;The inner wall of plug-in slot 11 is specifically plugged in the top of shell 1;Threaded rod 4 is rotatably connected in the side wall of cover plate 9;Arc plate 41 is threadedly connected on the outer wall of threaded rod 4;Arc plate 41 is slidably connected on the inner wall of cover plate 9;Limit rod 43 is fixed on the side wall of arc plate 41;Limit rod 43 is slidably connected in the middle of cover plate 9;Limit slot 47 is set in the inner wall of the top of shell 1;Limit rod 43 is contacted in the inner wall of limit slot 47;Connecting plate 45 is hinged on the end of arc plate 41;Sliding block 44 is hinged on the end of connecting plate 45;Rectangular slot 10 is set in the inner wall of cover plate 9;Sliding block 44 top is slidably connected in the inner wall of rectangular slot 10;When needing to open cover plate 9, only need to rotate threaded rod 4, at this time, arc plate 41 threadedly connected on the outer wall of threaded rod 4 will linearly move, arc plate 41 will drive limit rod 43 to move, until limit rod 43 is separated from the inner wall of limit slot 47, then cover plate 9 can be opened, it is said that when arc plate 41 moves, its end will rotate with connecting plate 45, while the angle of connecting plate 45 will change, while the other end of connecting plate 45 will rotate with sliding block 44, and drive sliding block 44 to slide in the inner wall of rectangular slot 10, so that another set of arc plate 41 and limit rod 43 can be moved, by this method, both the stability of shell 1 and liquid inlet 2 installation can be ensured, and multiple sets of limit rod 43 limiting shell 1 and cover plate 9 can also be ensured to move synchronously, without manually removing one by one by staff, through the above operation, when liquid inlet 2 is disassembled, staff does not need to pry cover plate 9 by using tool, reduce the damage rate of cover plate 9, also improve the convenience of disassembly.

[0027] Further, as Figure 2 And Figure 5As shown, the inner wall of the shell 1 is provided with a chute 8; the inner wall of the chute 8 is elastically connected with a top plate 7 through a spring 71; the end of the top plate 7 is slidingly connected to the inner wall of the chute 8; one end of the spring 71 is fixed to the bottom of the top plate 7; the other end of the spring 71 is fixed to the inner wall of the chute 8; the top of the top plate 7 is fixed with a plug-in rod 72; the bottom of the filter column 6 is provided with a positioning groove 63; the plug-in rod 72 contacts the inner wall of the positioning groove 63, and when the threaded rod 4 is rotated to release the limiting of the shell 1 and the cover plate 9 by the limiting rod 43, the spring 71 will push the top plate 7 through its elasticity, the top plate 7 will push the filter column 6, so that the filter column 6 moves out of the inner wall of the shell 1, so that the staff will not spend too much effort to open the cover plate 9, improve the use of commonality, in addition, the plug-in rod 72 and the positioning groove 63 are provided with multiple groups, and are matched, so that the filter column 6 can not rotate when it is impacted by the liquid on the inner wall of the shell 1, ensuring the stability of the filter column 6 and the filtering effect.

[0028] Further, as shown in Figure 2 Figure 3 The bottom end of the cover plate 9 is fixed with a sealing ring 42; the top end of the shell 1 is provided with a sealing groove 5; the sealing ring 42 contacts the inner wall of the sealing groove 5, and when the cover plate 9 moves, the sealing ring 42 will be deformed and separated from the inner wall of the sealing groove 5, and when the sealing ring 42 is clamped on the inner wall of the sealing groove 5, it is inserted into the inner wall of the plug-in groove 11, having a double sealing effect, which can improve the sealing between the cover plate 9 and the shell 1.

[0029] Further, as shown in Figure 3 The arc-shaped plate 41, the limiting rod 43 and the connecting plate 45 are provided with multiple groups; and the multiple groups of arc-shaped plates 41, limiting rods 43 and connecting plates 45 are symmetrically arranged with the center line of the sliding block 44 as the axis of symmetry, and when working, the cooperation between the multiple groups of arc-shaped plates 41, limiting rods 43 and connecting plates 45 can improve the stability of the limiting between the shell 1 and the cover plate 9, and the multiple groups of arc-shaped plates 41, limiting rods 43 and connecting plates 45 move synchronously, improving the convenience.

[0030] Further, as shown in Figure 2 and Figure 6 The top of the shell 1 is provided with a through groove one 48; the threaded rod 4 slides in the inner wall of the through groove one 48, and when working, the through groove one 48 can ensure that the shell 1 can be smoothly inserted into the inner wall of the plug-in groove 11, and has a positioning effect between the limiting rod 43 and the limiting groove 47, improving the practicality.

[0031] Further, as shown in Figure 3 Figure 4 ​​As shown, the filter column 6 top is provided with a through slot two 62; the inner wall of the filter column 6 top is provided with an arc slot 61; the arc slot 61 is communicated with the through slot two 62; the outer wall of the bottom end of the liquid inlet 2 is fixedly connected with a cylinder 21; the cylinder 21 slides on the inner wall of the arc slot 61, and when working, the filter column 6 is connected with the liquid inlet 2 by passing the cylinder 21 through the through slot two 62 and clamping in the inner wall of the arc slot 61, so that the filter column 6 can be taken out together when the cover plate 9 is pulled, improving the convenience.

[0032] Further, as shown in the drawings, Figure 3 As shown, the threaded rod 4 end is provided with a hexagonal slot 46, and when working, the hexagonal slot 46 can be easily rotated by the staff using tools, and the space occupied by the threaded rod 4 in the external environment can be reduced, improving the practicability.

[0033] Working principle: when the cover plate 9 needs to be opened, only need to use the function tool to insert the inner wall of the hexagonal slot 46, and then rotate the threaded rod 4, at this time the arc plate 41 threaded on the outer wall of the threaded rod 4 will move linearly, the arc plate 41 will drive the limiting rod 43 to move, until the limiting rod 43 is separated from the inner wall of the limiting slot 47, at this time the cover plate 9 can be opened, it is worth mentioning that when the arc plate 41 moves, the end will rotate between the connecting plate 45, at the same time the angle of the connecting plate 45 will change, at the same time the other end of the connecting plate 45 will rotate with the slider 44, and drive the slider 44 to slide in the inner wall of the rectangular slot 10, so as to drive the other group of arc plate 41 and limiting rod 43 to move, by this method, it can not only ensure the stability of the shell 1 and the liquid inlet 2 installation, but also ensure that the multiple limiting rods 43 limiting the shell 1 and the cover plate 9 can move synchronously, without manual removal one by one by the staff, through the above operation, it can ensure that the staff does not need to pry the cover plate 9 by using the tool when disassembling the liquid inlet 2, reduces the damage rate of the cover plate 9, and improves the convenience of disassembly.

[0034] When the limiting rod 43 is removed from the limiting of the shell 1 and the cover plate 9 by rotating the threaded rod 4, the spring 71 will push the top plate 7 through its elasticity, the top plate 7 will push the filter column 6, so that the filter column 6 moves out of the inner wall of the shell 1, so that the staff will not spend too much effort to open when taking the cover plate 9, improving the use of commonality, in addition, the plug-in rod 72 and the positioning slot 63 are provided in multiple groups and are matched with each other, so that the filter column 6 can not rotate when it is impacted by the liquid in the inner wall of the shell 1, ensuring the stability of the filter column 6 and the filtering effect.

[0035] When the filter column 6 needs to be disassembled, only the filter column 6 needs to be rotated, at this time the cylinder 21 will slide on the inner wall of the arc-shaped groove 61 until the cylinder 21 overlaps with the through groove two 62, at this time the filter column 6 can be taken down, when installing, the cylinder 21 is placed into the inner wall of the through groove two 62, and the filter column 6 is rotated to make the cylinder 21 clamped on the inner wall of the arc-shaped groove 61.

[0036] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A fuel filter structure comprising a housing (1); characterized in that: The bottom of the shell (1) is provided with a liquid outlet (3); the top of the shell (1) is provided with a cover plate (9); the top of the cover plate (9) is provided with a liquid inlet (2); the inner wall of the shell (1) is provided with a filter column (6); the bottom of the cover plate (9) is provided with a plug-in slot (11); the top of the shell (1) is plugged into the inner wall of the plug-in slot (11); the side wall of the cover plate (9) is provided with a threaded rod (4); the outer wall of the threaded rod (4) is provided with an arc plate (41); the arc plate (41) is slidably connected to the inner wall of the cover plate (9); the side wall of the arc plate (41) is provided with a limiting rod (43); the limiting rod (43) is slidably connected to the middle of the cover plate (9); the inner wall of the top of the shell (1) is provided with a limiting slot (47); the limiting rod (43) is in contact with the inner wall of the limiting slot (47); the end of the arc plate (41) is hinged with a connecting plate (45); the end of the connecting plate (45) is hinged with a sliding block (44); the inner wall of the cover plate (9) is provided with a rectangular slot (10); the top of the sliding block (44) is slidably connected to the inner wall of the rectangular slot (10).

2. The fuel filter arrangement of claim 1, wherein: The inner wall of the shell (1) is provided with a sliding groove (8); the inner wall of the sliding groove (8) is elastically connected with a top plate (7) through a spring (71); the end of the top plate (7) is slidably connected to the inner wall of the sliding groove (8); one end of the spring (71) is fixed to the bottom of the top plate (7); the other end of the spring (71) is fixed to the inner wall of the sliding groove (8); the top of the top plate (7) is fixed with a plug-in rod (72); the bottom of the filter column (6) is provided with a positioning slot (63); the plug-in rod (72) is in contact with the inner wall of the positioning slot (63).

3. The fuel filter arrangement of claim 1, wherein: The inner wall of the bottom end of the cover plate (9) is fixed with a sealing ring (42); the outer wall of the top end of the shell (1) is provided with a sealing groove (5); the sealing ring (42) is in contact with the inner wall of the sealing groove (5).

4. The fuel filter arrangement of claim 1, wherein: The arc plate (41), the limiting rod (43) and the connecting plate (45) are provided with multiple groups; and the multiple groups of arc plates (41), limiting rods (43) and connecting plates (45) are symmetrically arranged with the center line of the sliding block (44) as the axis of symmetry.

5. The fuel filter arrangement of claim 1, wherein: The top of the shell (1) is provided with a through groove (48); the threaded rod (4) is slidably connected to the inner wall of the through groove (48).

6. The fuel filter arrangement of claim 2, wherein: The top of the filter column (6) is provided with a through groove (62); the inner wall of the top of the filter column (6) is provided with an arc-shaped groove (61); the arc-shaped groove (61) is communicated with the through groove (62); the outer wall of the bottom end of the liquid inlet (2) is fixed with a cylinder (21); the cylinder (21) is slidably connected to the inner wall of the arc-shaped groove (61).

7. The fuel filter arrangement of claim 1, wherein: The end of the threaded rod (4) is provided with a hexagonal groove (46).

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