CN210660391U

CN210660391U - Filter element mounting structure of automatic fuel oil emptying device

Info

Publication number: CN210660391U
Application number: CN201921698988.8U
Authority: CN
Inventors: 柯建豪; 庄才敖; 徐韬; 盛奇峰
Original assignee: Zhejiang Keboda Industrial Co ltd
Current assignee: Zhejiang Keboda Industrial Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-06-02
Anticipated expiration: 2029-10-11

Abstract

A filter element mounting structure of an automatic fuel oil emptying device comprises a shell, a mounting bracket, a water collecting cup and a filter element assembly; the lower end of the shell is detachably connected with the upper end of the mounting bracket, the lower end of the mounting bracket is detachably or non-detachably connected with the upper end of the water collecting cup, and the shell, the mounting bracket and the water collecting cup jointly define a cavity; the shell is provided with an air inlet, the air inlet is provided with an air inlet valve, and the air inlet valve is used for controlling the opening and closing of the air inlet; the mounting bracket is provided with an oil inlet, the water collecting cup is provided with an oil outlet, and the oil inlet and the oil outlet are respectively communicated with the cavity; the filter element assembly is arranged in the cavity in a removable mode and supported by the mounting support, and the filter element assembly is used for filtering fuel oil flowing into the oil inlet. The utility model discloses a filter core assembly can independently be dismantled, and dismantle simply, and the risk that takes place fuel and outwards leak when dismantling and changing the filter core assembly is low.

Description

Filter element mounting structure of automatic fuel oil emptying device

Technical Field

The utility model relates to an automatic emptying devices of fuel.

Background

When an automobile diesel engine is started at a low temperature and a low speed, a low-pressure oil way often cannot automatically exhaust air in the oil way, so that the phenomena of unstable starting, difficult starting, even incapability of starting and the like of the diesel engine are caused, and the use experience of a customer is influenced. Therefore, it is generally required to add an auto-evacuation and fast-fueling fuel auto-evacuation device to a diesel engine.

The automatic fuel emptying devices in the current market integrate fuel filter elements, but have the following defects: 1. the fuel filter element is a cylindrical tank type spin-on filter element, and can only be integrally replaced when the filter element is replaced, so that unnecessary waste of various parts is caused, the maintenance cost of a user is increased, and the cylindrical tank type spin-on filter element is designed in an integrated manner, so that more waste is generated, the resource utilization efficiency is low, and the environmental pollution is large; 2. the service life of the filter element is not long; 3. the shell of filter core is steel thin wall casing, and intensity is low, yielding, and the inside filtration state of unable discernment filter core, and the user can only use the mileage according to the car to change and can't discern the filter core life cycle effectively to cause the user to change the filter core too early in the use or crossed the problem that still not change the filter core behind the change cycle.

Disclosure of Invention

The utility model aims to solve the technical problem that a filter core mounting structure of automatic emptying devices of fuel is provided, its filter core part can independently be dismantled, and dismantle simply, and the risk that takes place fuel and outwards leak when dismantling and changing the filter core is low.

The present invention provides a filter element mounting structure of a fuel oil automatic emptying device, which can observe the service condition of the filter element in real time during the use process.

The embodiment of the utility model provides a filter element mounting structure of an automatic fuel oil emptying device, which comprises a shell, a mounting bracket, a water collecting cup and a filter element assembly; the lower end of the shell is detachably connected with the upper end of the mounting bracket, the lower end of the mounting bracket is detachably or non-detachably connected with the upper end of the water collecting cup, and the shell, the mounting bracket and the water collecting cup jointly define a cavity; the shell is provided with an air inlet, the air inlet is provided with an air inlet valve, and the air inlet valve is used for controlling the opening and closing of the air inlet; the mounting bracket is provided with an oil inlet, the water collecting cup is provided with an oil outlet, and the oil inlet and the oil outlet are respectively communicated with the cavity; the filter element assembly is arranged in the cavity in a removable mode and supported by the mounting support, and the filter element assembly is used for filtering fuel oil flowing into the oil inlet.

The filter element mounting structure of the automatic fuel oil emptying device is characterized in that the shell is a transparent plastic shell.

The filter element mounting structure of the automatic fuel oil emptying device is characterized in that the shell is also provided with a plurality of reinforcing ribs.

After the technical scheme is adopted, the utility model discloses following advantage and characteristics have at least:

1. the filter element mounting structure meets the requirement of independent mounting of the filter element assembly, so that the filter element assembly, the mounting bracket and the shell are independent and detachable, the independent dismounting and replacement of components of the filter element assembly are realized, the waste caused by the need of replacing other parts at the same time when the filter element is replaced is avoided, and the maintenance cost of replacing the filter element by a user is reduced; in addition, the waste generated by replacing the filter element is reduced, the resource is saved, and the environmental pollution is reduced;

2. the shell of the embodiment is provided with the air inlet valve, the air inlet valve is opened before the filter element assembly is replaced, air enters the cavity sealed by the filter element mounting structure, and fuel deposited in the cavity can be promoted to be discharged from the oil inlet of the mounting bracket, so that the risk of oil leakage during the process of disassembling and replacing the filter element assembly is reduced;

3. the shell of this embodiment is the transparent plastic shell, can visualize the clean degree of filter core under the circumstances of guaranteeing to satisfy the operation requirement of filter core, is convenient for judge whether need change filter core assembly through visual identification. Still be equipped with many strengthening ribs on the shell, not only promoted the holistic intensity of product, can also cooperate with professional spanner to improve the convenience and the security of assembly dismantlement.

Drawings

Fig. 1 and 2 respectively show a schematic perspective view and an explosion view of a filter element mounting structure of an automatic fuel oil emptying device according to an embodiment of the present invention.

Fig. 3 shows a schematic perspective view of a housing according to an embodiment of the present invention.

Fig. 4 is a schematic cross-sectional view showing a filter cartridge mounting structure of an automatic fuel emptying device according to an embodiment of the present invention, in which arrows indicate the flow direction of fuel when an intake valve is opened.

Fig. 5 is a schematic cross-sectional view showing a filter cartridge installation structure of an automatic fuel evacuation apparatus according to an embodiment of the present invention, in which arrows represent the flow direction of fuel during the operation of an electric fuel delivery pump.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1 to 5. According to the utility model discloses an automatic emptying devices's of fuel filter core mounting structure, including shell 1, installing support 2, cup 3 and filter core assembly 4 catchment.

The lower extreme of shell 1 and the upper end detachably of installing support 2 are connected, and the lower extreme of installing support 2 and the upper end of catchment cup 3 can dismantle or undetachably connect, and shell 1, installing support 2 and catchment cup 3 delimit a cavity 9 jointly. In this embodiment, for the convenience of installation and maintenance, it is preferable that the lower end of the mounting bracket 2 is detachably coupled to the upper end of the water collecting cup 3.

The shell 1 is a high-strength plastic transparent shell, the thickness of the shell is 3mm, and the service condition of the filter element assembly 4 inside the shell can be visually observed. The lower end of the housing 1 is provided with an external thread 1b and an O-ring mounting step 1 c. The mounting bracket 2 has a central through hole 20 extending in the height direction, and the hole wall of the central through hole 20 of the mounting bracket 2 is provided with an internal thread 2m matching the external thread 1b and a support step 2 c. The shell 1 is spirally connected with the mounting bracket 2, and the O-shaped ring 13 is sleeved at the lower end of the shell 1 and respectively abutted against the O-shaped ring mounting step 1c and the upper end surface 2n of the mounting bracket 2, so that the shell 1 and the mounting bracket 2 are sealed. The mounting bracket 2 is further provided with four first mounting holes 2a and five second mounting holes 2e, the mounting bracket 2 is mountable to an external device through the four first mounting holes 2a, and is connected to the water collecting cup 3 by screws 6 passing through the five second mounting holes 2e and five third mounting holes 3e on the water collecting cup 3. Cup 3 that catchments is equipped with O type circle mounting groove 3l, and O type circle 35 is installed in O type circle mounting groove 3l to realize end face seal with the lower terminal surface 2p of linking bridge 2. The mounting bracket 2 is provided with two oil inlets 2k and 2l, the water collecting cup 3 is provided with two

oil outlets

3h and 3j, and the oil inlets 2k and 2l and the

oil outlets

3h and 3j are respectively communicated with the cavity 9.

The filter element assembly 4 is arranged in the cavity 9 in a removable mode, the lower end of the filter element assembly 4 is supported on the supporting step 2c, and the filter element assembly 4 is used for filtering fuel oil flowing into the oil inlet. The filter cartridge assembly 4 includes a cylindrical filter paper 41, an upper filter cartridge seat 42, a lower filter cartridge seat 43, and a center post 44. The upper and lower ends of the cylindrical filter paper 41 are connected to the upper and lower cartridge holders 42 and 43, respectively (typically, by adhesive bonding). The cylindrical filter paper 41 is provided with a central hole 410 which is opened downwards, the lower filter core seat 43 is provided with a through hole 430 which is communicated along the height direction of the lower filter core seat at the position corresponding to the central hole 410, the central column 44 is sequentially inserted into the through hole 430 and the central hole 410 from bottom to top, the central column 44 is provided with an inner cavity 440 which is opened downwards, the inner cavity 440 is communicated with the cavity 9, and the side surface of the central column 44 is provided with a plurality of oil feeding holes (not shown in the figure) so that the fuel oil filtered by the cylindrical filter paper 41 enters the inner cavity 440 of the central column 44. The cylindrical filter paper 41 is folded in a wave shape, so that impurities and moisture are blocked outside the filter paper without passing through the filter paper, and only air and filtered fuel can pass through the filter paper to enter the inside of the filter paper. Separated moisture and fuel before being filtered can flow through the lower cartridge seat into the water collection cup 3. Optionally, the cylindrical filter paper 41 is a composite filter paper, so that the effect of prolonging the service life of the filter element can be achieved.

Preferably, the filter element mounting structure of the automatic fuel oil draining device of the present embodiment includes a filter element assembly limiting mechanism for limiting the filter element assembly 4 to prevent the filter element assembly 4 from swinging. Filter core assembly limit structure includes along many spacing muscle 1f of circumference interval setting on shell 1 inner wall, the side of filter core seat 42 on many spacing muscle 1f butt.

In this embodiment, the top surface of the upper filter element seat 42 is provided with a first convex column 4a extending upwards, and the inner surface of the top wall of the housing 1 is provided with a second convex column 1e extending downwards. The filter element mounting structure of the fuel oil automatic emptying device also comprises a spring 7, two ends of the spring 7 are respectively sleeved on the first convex column 4a and the second convex column 1e, and the structure can prevent the filter element assembly from moving up and down. The second convex column 1e is provided with a threaded through hole 1a extending along the axial direction, the threaded through hole 1a forms an air inlet of the housing 1, the air inlet 1a is provided with an air inlet valve 12, and the air inlet valve 12 is used for controlling the opening and closing of the air inlet 1 a. The intake valve 12 includes a valve core 12b and a sealing ring 12a, the valve core 12b is spirally connected to the threaded through hole 1a, and the sealing ring 12a is sleeved outside the valve core 12b to seal a gap between the valve core 12b and the threaded through hole 1 a. The valve core 12b is also provided with a sealing ring mounting step 12c matched with the sealing ring 12 a.

In this embodiment, the housing 1 is provided with a plurality of reinforcing ribs 1d (the existing steel thin-wall shell cannot be provided with reinforcing ribs), so that the overall strength of the product is improved. A plurality of reinforcing ribs 1d are distributed on the inner and outer surfaces of the housing 1, each extending along the top surface and the side surface of the housing 1. Many strengthening ribs 1d can cooperate with professional spanner to screw up or loosen shell 1 soon, thereby improved the convenience and the security of assembly and disassembly.

The filter cartridge assembly of this embodiment is replaced generally as follows.

Fig. 4 is a schematic cross-sectional view of a filter cartridge mounting structure of an automatic fuel evacuation device according to an embodiment of the present invention in an installed position. Before the filter element assembly 4 is replaced, the threads of the air inlet valve 12 are loosened, so that the sealing effect between the sealing ring 12a and the threaded through hole 1a is lost, and air enters the closed chamber 9. Under the action of gravity and atmospheric pressure, the fuel deposited inside the chamber 9 rapidly flows into the fuel tank through the two oil inlets 2k, 2l of the mounting bracket 2 (the arrows in fig. 4 represent the flow direction of the fuel when the intake valve is opened), so that the residual liquid level inside the chamber 9 is lower than the upper end face of the mounting bracket 2, and the upper half of the filter paper 41 is free from fuel deposition. Then, a special spanner or a belt spanner is adopted to be sleeved on the shell 1, the shell 1 is unscrewed, and the filter element assembly 4 with the interior needing to be replaced is taken out. After a new filter element assembly is placed on the supporting step 2c of the connecting bracket 2, the shell 1 is screwed down again, and then the disassembly and replacement work of the filter element assembly 4 is completed. Whole dismantlement and change work can directly be accomplished on the vehicle, and this embodiment has reduced the risk that the fuel outwards leaked in the dismantlement in-process, has guaranteed the security and the convenience of dismantling the change simultaneously.

Further, the cartridge mounting structure of the automatic fuel drain apparatus of the present embodiment includes an electric fuel pump 5. The upper part of the electric oil transfer pump 5 is inserted into the inner cavity 440 of the center post 44, and the lower end of the electric oil transfer pump 5 extends into the inner cavity of the water collecting cup 3 and is detachably connected with the water collecting cup 3 through screws. An outlet 5b of the electric oil transfer pump 5 is communicated with the

oil outlets

3h and 3 j.

Please refer to fig. 5. When the electric oil transfer pump 5 works, fuel oil is sucked from the two oil inlets 2k and 2l of the mounting bracket 2, enters the inner cavity 440 of the central column 44 through the filter paper 41, flows into the inlet 5a of the electric oil transfer pump 5, is conducted to the outlet 5b of the electric oil transfer pump 5 through the flow when the electric oil transfer pump works, and then flows out of the

oil outlets

3h and 3 j. The arrows in fig. 5 show the fuel flow direction when the electric fuel pump 5 is operated. When the electric fuel delivery pump 5 does not work, the fuel oil flowing in from the oil inlets 2k, 2l enters the one-way valve assembly 51 arranged in the electric fuel delivery pump 5 through the cylindrical filter paper 41, then enters the outlet 5b of the electric fuel delivery pump 5, and finally flows out from the

oil outlets

3h, 3 j.

The filter element mounting structure of this embodiment has satisfied the requirement that the filter element assembly installed alone, makes filter element assembly, installing support and shell independently removable each other, has realized dismantling the change alone of filter element assembly part, because of the waste that other parts caused need be changed simultaneously when having avoided changing the filter element, has reduced the maintenance cost that the user changed the filter element.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A filter element mounting structure of an automatic fuel oil emptying device is characterized by comprising a shell, a mounting bracket, a water collecting cup and a filter element assembly;

the lower end of the shell is detachably connected with the upper end of the mounting bracket, the lower end of the mounting bracket is detachably or non-detachably connected with the upper end of the water collecting cup, and the shell, the mounting bracket and the water collecting cup jointly define a chamber;

the shell is provided with an air inlet, the air inlet is provided with an air inlet valve, and the air inlet valve is used for controlling the opening and closing of the air inlet; the mounting bracket is provided with an oil inlet, the water collecting cup is provided with an oil outlet, and the oil inlet and the oil outlet are respectively communicated with the cavity; the filter element assembly is removably disposed within the chamber and supported by the mounting bracket, and the filter element assembly is configured to filter fuel flowing into the inlet.

2. The filter element mounting structure of an automatic fuel oil emptying device as claimed in claim 1, wherein the housing is a transparent plastic housing.

3. A filter cartridge mounting structure for an automatic fuel drain apparatus according to claim 2, wherein the housing is provided with a plurality of ribs.

4. The filter element mounting structure of the automatic fuel oil emptying device as claimed in claim 1, wherein the filter element mounting structure of the automatic fuel oil emptying device comprises a filter element assembly limiting mechanism, and the filter element assembly limiting mechanism is used for limiting the filter element assembly so as to prevent the filter element assembly from swinging.

5. The filter element mounting structure of the automatic fuel oil emptying device as claimed in claim 4, wherein the filter element assembly comprises a barrel-shaped filter paper, a central column, an upper filter element seat and a lower filter element seat; the upper end and the lower end of the cylindrical filter paper are respectively connected with the upper filter element seat and the lower filter element seat; the cylindrical filter paper is provided with a center hole with a downward opening, the lower filter element seat is provided with a through hole which is communicated along the height direction of the lower filter element seat at a position corresponding to the center hole, the center column is sequentially inserted into the through hole and the center hole from bottom to top, the center column is provided with an inner cavity with a downward opening, the inner cavity is communicated with the cavity, and the side surface of the center column is provided with a plurality of oil passing holes for fuel oil filtered by the cylindrical filter paper to enter the inner cavity of the center column.

6. The filter element mounting structure of the automatic fuel oil emptying device as claimed in claim 5, wherein the filter element assembly limiting structure comprises a plurality of limiting ribs which are arranged on the inner wall of the shell along the circumferential direction at intervals, and the limiting ribs are abutted against the side surface of the upper filter element seat.

7. The filter cartridge mounting structure of an automatic fuel drain device according to claim 5, wherein a top surface of the upper filter cartridge holder is provided with a first projection extending upward, and an inner surface of a top wall of the housing is provided with a second projection extending downward;

the filter element mounting structure of the automatic fuel oil emptying device comprises a spring, and two ends of the spring are respectively sleeved on the first convex column and the second convex column.

8. A filter cartridge mounting structure for an automatic fuel drain device according to claim 7, wherein said second boss is provided with a threaded through hole extending in an axial direction, said threaded through hole constituting said air inlet;

the air inlet valve comprises a valve core and a sealing ring, the valve core is in spiral connection with the threaded through hole, and the sealing ring is sleeved outside the valve core and used for sealing a gap between the valve core and the threaded through hole.

9. The filter element mounting structure of the automatic fuel oil emptying device as claimed in claim 5, wherein the filter element mounting structure of the automatic fuel oil emptying device comprises an electric fuel delivery pump, the upper part of the electric fuel delivery pump is inserted into the inner cavity of the center post, and the lower end of the electric fuel delivery pump extends into the inner cavity of the water collecting cup and is connected with the water collecting cup; the outlet of the electric oil delivery pump is communicated with the oil outlet of the water collecting cup.

10. The filter cartridge mounting structure for an automatic fuel oil emptying device as defined in claim 1, wherein the mounting bracket has a central through hole extending in a height direction, a wall of the central through hole of the mounting bracket is provided with a support step, and a lower end of the filter cartridge assembly is supported on the support step.