Vehicle-mounted box type oil filtering structure

Abstract

The utility model relates to a vehicle-mounted box type oil filtering structure which comprises a shell, and a fixing plate and a flow guide limiting plate are fixedly mounted in the shell. According to the vehicle-mounted box type oil filtering structure, by arranging the pressure relief mechanism, when the pressure of an oil way is too large, firstly, high pressure is generated in the filter element pipe, at the moment, the pressure pushes sealing blocks in two pressure discharge holes in the bottom of the backflow box and enables the sealing blocks to move, and then through linkage generated between components such as a fixing block, the sealing blocks are separated from the backflow box; by means of the design, the pressure can be relieved in time, the pressure of an oil way can be reduced, and finally when the pressure in the filter element pipe returns to normal, the fuel oil in the filter element pipe can be conveyed to the oil return pipe through the two-way collecting pipe. And through the reduction characteristic of the reset spring, the two sealing blocks can be clamped into the two pressure discharge holes in the bottom of the backflow box again, so that the oil supply stability of the equipment can be effectively improved, and the practicability is high.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted box-type oil filters, specifically a vehicle-mounted box-type oil filter structure. Background Technology

[0002] Vehicle-mounted box-type fuel filter structure usually refers to a device used to filter fuel. It is mainly used to clean impurities in the fuel, prevent impurities from entering the engine's fuel system, and ensure the normal operation of the engine. This structure mainly consists of a shell and a filter element tube. The shell is usually made of metal or plastic, and the filter element tube inside filters particulate matter and impurities in the fuel.

[0003] Currently, there are many types of devices for filtering fuel. For example, a car oil filter with Chinese patent number CN201621249244.4 includes a drain plug, a spiral guide plate, a filter element tube, an oil filter housing, and a filter element tube shaft. The bottom of the oil filter housing is connected to a drain pipe, and a drain plug is installed inside the drain pipe. A pressure cap is connected to the upper end of the drain plug, and the upper end of the pressure cap is connected to the filter element tube shaft. The filter element tube is sleeved on the filter element tube shaft. A spiral guide plate is welded to the inner wall of the oil filter housing outside the filter element tube. An oil inlet pipe is connected to the top of the oil filter housing, and the upper end of the filter element tube is connected to an outlet pipe. The oil cover, with an oil outlet pipe connected to its side, is part of an automotive oil filter. This design facilitates the discharge of oil from the bottom of the oil filter housing through the drain pipe, increasing operational stability. It also increases the contact area and time between the oil and the filter element, allowing the filter element to rotate and change position, thus improving its filtration efficiency and extending its lifespan. However, because this device is similar to most current fuel filtration devices, excessive pressure can sometimes occur in the pipeline during fuel filtration. Excessive pressure can lead to leaks or even rupture, affecting vehicle operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vehicle-mounted box-type oil filter structure, which has the advantage of effectively relieving pressure and returning oil, thus solving the problem of excessive pressure in pipelines.

[0005] To achieve the above-mentioned purpose of effectively relieving pressure and returning oil, this utility model provides the following technical solution: a vehicle-mounted box-type oil filter structure, including a shell, a fixing plate and a flow guiding and limiting plate are fixedly installed inside the shell, a filter element tube is provided between the fixing plate and the flow guiding and limiting plate, and a pressure relief mechanism is provided on the fixing plate;

[0006] The pressure relief mechanism includes a return box, which is installed on the fixed plate. A fixed block is fixedly installed on the inner top wall of the return box. A reset spring is fixedly installed inside the fixed block. A sleeve is sleeved on one bottom end of the fixed block. A movable block is fixedly connected to the bottom of the sleeve. Two sealing blocks are fixedly connected to the bottom of the movable block.

[0007] Furthermore, the bottom of the reflux box has two pressure relief holes that are adapted to the sealing block, and the end of the reset spring away from the fixed block is connected to the inner bottom wall of the sleeve, and the connection between the two is a fixed connection.

[0008] Furthermore, an oil outlet pipe is provided at the bottom of the outer shell, the top of the oil outlet pipe is fixedly connected to the bottom of the flow guiding and limiting plate, and an oil outlet hole communicating with the inner wall of the oil outlet pipe is provided on the inner bottom wall of the flow guiding and limiting plate.

[0009] Furthermore, a bidirectional manifold is fixedly connected to the top of the return box, and two oil return holes communicating with the inside of the bidirectional manifold are opened on the top of the return box.

[0010] Furthermore, a return oil pipe is provided on the upper part of the outer casing and connected to the top of the bidirectional manifold, and the top of the bidirectional manifold and the bottom of the return oil pipe are fixedly connected.

[0011] Furthermore, an oil inlet pipe is provided through the outer shell and the fixing plate.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. This vehicle-mounted box-type oil filter structure, through the setting of a pressure relief mechanism, when the pressure of the entire oil circuit is too high, firstly, a strong pressure will be generated inside the filter element tube. At this time, the pressure will push the sealing blocks in the two pressure relief holes at the bottom of the return box, causing them to move. Then, through the linkage between the fixed block, the return spring, the sleeve, the limit block, the moving block, and the sealing block, the inside of the return box and the inside of the filter element tube are connected. At this time, the fuel inside the filter element tube will flow into the return box and converge into the return oil pipe through the bidirectional manifold. This design can relieve pressure in time, reduce the pressure of the oil circuit, and prevent the oil filter structure from leaking or even breaking. Finally, when the pressure inside the filter element tube returns to normal, the restoration characteristic of the return spring allows the two sealing blocks to re-lock into the two pressure relief holes at the bottom of the return box, waiting for the next pressure relief. Thus, this mechanism can effectively improve the stability of the oil supply of the vehicle-mounted box-type oil filter structure and has strong practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2This is a front sectional view of the structure of this utility model;

[0016] Figure 3 For practical purposes Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the flow guiding and limiting plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the filter element tube of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Fixing plate; 3. Flow guide and limiting plate; 4. Filter tube; 5. Pressure relief mechanism; 501. Return box; 502. Fixing block; 503. Return spring; 504. Sleeve; 505. Movable block; 506. Sealing block; 6. Oil outlet pipe; 7. Two-way manifold; 8. Oil return pipe; 9. Oil inlet pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 In this embodiment, a vehicle-mounted box-type oil filter structure includes an outer shell 1. A fixing plate 2 and a flow guiding and limiting plate 3 are fixedly installed inside the outer shell 1. A filter element tube 4 is provided between the fixing plate 2 and the flow guiding and limiting plate 3. A pressure relief mechanism 5 is provided on the fixing plate 2.

[0022] The pressure relief mechanism 5 includes a return box 501. The return box 501 is mounted on the fixed plate 2. A fixed block 502 is fixedly installed on the inner top wall of the return box 501. A return spring 503 is fixedly installed inside the fixed block 502. A sleeve 504 is sleeved at one bottom end of the fixed block 502. The end of the return spring 503 away from the fixed block 502 is connected to the inner bottom wall of the sleeve 504, and the connection between the two is fixed. A movable block 505 is fixedly connected to the bottom of the sleeve 504. Two sealing blocks 506 are fixedly connected to the bottom of the movable block 505. Two pressure relief holes adapted to the sealing blocks 506 are opened at the bottom of the return box 501. Therefore, when the pressure in the entire oil circuit is too high, a strong pressure will first be generated inside the filter element tube 4. At this time, this pressure will push the sealing blocks 506 in the two pressure relief holes at the bottom of the return box 501. The sealing block 506 is moved, and then the linkage between the fixed block 502, the return spring 503, the sleeve 504, the movable block 505, and the sealing block 506 makes the interior of the return box 501 and the interior of the filter tube 4 connected. At this time, the fuel inside the filter tube 4 will flow into the return box 201 and be transferred to the return oil pipe 8 through the bidirectional manifold 7. This design can release pressure in time, reduce oil circuit pressure, and prevent leakage or even rupture of the oil filter structure. Finally, when the pressure inside the filter tube 4 returns to normal, the restoration characteristic of the return spring 503 allows the two sealing blocks 506 to be re-engaged into the two pressure relief holes at the bottom of the return box 501 and wait for the next pressure relief. Thus, this mechanism can effectively improve the stability of the oil supply of the vehicle box-type oil filter structure and has strong practicality.

[0023] In the implementation of the case, an oil outlet pipe 6 is installed at the bottom of the outer casing 1. The top of the oil outlet pipe 6 is fixedly connected to the bottom of the flow guide plate 3. An oil outlet hole communicating with the inner wall of the oil outlet pipe 6 is opened on the inner bottom wall of the flow guide plate 3. The flow guide plate 3 can guide the fuel flow, avoid the chaotic flow and eddy phenomenon, and thus optimize the flow state. The function of the oil outlet pipe 6 is to transport the fuel from the oil filter structure to the fuel system of the engine to ensure the normal operation of the engine.

[0024] In the implementation of the case, the top of the return box 501 is fixedly connected to the bidirectional manifold 7, and the top of the return box 501 has two return oil holes that are connected to the inside of the bidirectional manifold 7. The bidirectional manifold 7 can effectively improve the flow distribution of fuel in the return state, reduce pipeline resistance and energy loss, thereby improving the efficiency and stability of the return oil.

[0025] In the implementation of the case, the top of the outer casing 1 is provided with a return oil pipe 8 connected to the top of the bidirectional manifold 7, and the top of the bidirectional manifold 7 and the bottom of the return oil pipe 8 are fixedly connected. The return oil pipe 8 can recover the excess fuel generated in the oil filter structure, thereby reducing unnecessary fuel consumption, reducing oil circuit pressure, and improving the fuel economy of the vehicle.

[0026] In the case implementation, an oil inlet pipe 9 is installed on the outer shell 1 and the fixing plate 2. The function of the oil inlet pipe 9 is to transfer fuel from the vehicle's fuel tank to the inside of the oil filter structure for oil filtration.

[0027] When implementing this procedure, please follow these steps:

[0028] 1) First, a strong pressure will be generated inside the filter tube 4. At this time, the pressure will push the sealing block 506 in the two pressure relief holes at the bottom of the return box 501 and make it move.

[0029] 2) Then, through the linkage between components such as the fixed block 502, the interior of the return box 501 and the interior of the filter tube 4 are in a connected state. At this time, the fuel inside the filter tube 4 will flow into the return box 201 and be transferred to the return oil pipe 8 through the bidirectional manifold 7.

[0030] 3) Finally, when the internal pressure of the filter tube 4 returns to normal, the two sealing blocks 506 can be re-engaged into the two pressure relief holes at the bottom of the return box 501 by the restoration characteristics of the reset spring 503, and wait for the next pressure relief.

[0031] In summary, this vehicle-mounted box-type oil filter structure, through the setting of the pressure relief mechanism 5, when the pressure in the entire oil circuit is too high, firstly, a strong pressure will be generated inside the filter element tube 4. At this time, this pressure will push the sealing blocks 506 in the two pressure relief holes at the bottom of the return box 501, causing them to move. Then, through the linkage between the fixed block 502, the return spring 503, the sleeve 504, the movable block 505, and the sealing block 506, the interior of the return box 501 and the interior of the filter element tube 4 are connected. At this time, the fuel inside the filter element tube 4 will flow into the return box 201 and be collected into the return oil pipe 8 through the transmission of the bidirectional manifold 7. This design can achieve timely pressure relief and reduce pressure. The low oil pressure prevents leakage or even rupture of the oil filter structure. Finally, when the internal pressure of the filter element tube 4 returns to normal, the return spring 503 restores the two sealing blocks 506 to re-engage into the two pressure relief holes at the bottom of the return box 501, and waits for the next pressure relief. This mechanism effectively improves the stability of the oil supply of the vehicle-mounted box-type oil filter structure. It is highly practical and solves the problem that, like most current fuel filtration devices, the pressure in the pipeline can sometimes be too high when the fuel is filtered. When the pipeline pressure is too high, it can lead to leakage or even rupture of the device, affecting the use of the vehicle.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vehicle-mounted box-type oil filter structure, comprising a housing (1), characterized in that: A fixing plate (2) and a flow guiding and limiting plate (3) are fixedly installed inside the outer shell (1). A filter tube (4) is provided between the fixing plate (2) and the flow guiding and limiting plate (3). A pressure relief mechanism (5) is provided on the fixing plate (2). The pressure relief mechanism (5) includes a return box (501), the return box (501) is mounted on the fixing plate (2), a fixing block (502) is fixedly installed on the inner top wall of the return box (501), a reset spring (503) is fixedly installed inside the fixing block (502), a sleeve (504) is sleeved on one bottom end of the fixing block (502), a movable block (505) is fixedly connected to the bottom of the sleeve (504), and two sealing blocks (506) are fixedly connected to the bottom of the movable block (505).

2. The vehicle-mounted box-type oil filter structure according to claim 1, characterized in that: The bottom of the reflux box (501) has two pressure relief holes that are adapted to the sealing block (506). The end of the reset spring (503) away from the fixed block (502) is connected to the inner bottom wall of the sleeve (504), and the connection between the two is a fixed connection.

3. The vehicle-mounted box-type oil filter structure according to claim 1, characterized in that: The bottom of the outer shell (1) is provided with an oil outlet pipe (6), the top of the oil outlet pipe (6) is fixedly connected to the bottom of the flow limiting plate (3), and an oil outlet hole communicating with the inner wall of the oil outlet pipe (6) is provided on the inner bottom wall of the flow limiting plate (3).

4. The vehicle-mounted box-type oil filter structure according to claim 1, characterized in that: The top of the return box (501) is fixedly connected to a bidirectional manifold (7), and the top of the return box (501) has two return oil holes that communicate with the inside of the bidirectional manifold (7).

5. The vehicle-mounted box-type oil filter structure according to claim 4, characterized in that: The top of the outer casing (1) is provided with a return oil pipe (8) that is connected to the top of the bidirectional manifold (7), and the top of the bidirectional manifold (7) and the bottom of the return oil pipe (8) are fixedly connected.

6. The vehicle-mounted box-type oil filter structure according to claim 1, characterized in that: Oil inlet pipes (9) are installed on the outer shell (1) and the fixing plate (2).

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