An out-of-case self-sealing oil filter

Abstract

The utility model belongs to filter technical field, concretely relates to a box outside self -sealing formula oil -filter. The utility model discloses a casing, is equipped with inlet pipe and outlet pipe on the casing, is equipped with the self -sealing valve assembly that the casing is divided into upper chamber and lower chamber in the casing inside, in the lower chamber, from inside to outside, metal mesh cover and filter tow cover are equipped with in proper order, and one end of inlet pipe protrudes the casing, and the other end end part is located in filter tow cover, one end of outlet pipe protrudes the casing, and the other end end part is located in upper chamber. When using, liquid flows from inlet pipe, passes through metal mesh cover and filter tow cover of different materials in proper order, can carry out effective interception to the impurity and particle size of different material quality, finally, after passing through self -sealing valve assembly, from outlet pipe, can effectively filter out the impurity in liquid, guarantees the normal work of entire hydraulic system.

Description

Technical Field

[0001] This utility model belongs to the field of filter technology, specifically relating to an external self-sealing oil suction filter. Background Technology

[0002] A filter is an important component in a hydraulic system. It is usually placed on the pump suction side to keep the oil flowing back to the tank clean, prevent dirt from entering the system, keep the pump and system clean, extend the service life of the pump and system, and reduce obstacles caused by continuous operation.

[0003] Most existing self-sealing oil filters focus on maintenance and disassembly, resulting in poor filtration performance. After prolonged use, the filter element often needs to be replaced, which reduces the economic efficiency and practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide an external self-sealing oil suction filter to address the problem of poor filtration effect in existing self-sealing oil suction filters.

[0005] An external self-sealing oil filter includes a housing, an inlet pipe and an outlet pipe on the housing, and a self-sealing valve assembly inside the housing that divides the interior of the housing into an upper chamber and a lower chamber.

[0006] In the lower chamber, a metal mesh cover and a filter cotton cover are arranged sequentially from the inside to the outside, and one end of the liquid inlet pipe extends out of the housing, while the other end is located inside the filter cotton cover;

[0007] One end of the liquid outlet tube extends out of the housing, and the other end is located in the upper cavity.

[0008] Furthermore, a magnetic column is provided inside the metal mesh cover, and one end of the liquid inlet pipe extends out of the housing, while the other end is located between the magnetic column and the metal mesh cover.

[0009] Furthermore, a heating module is also provided at the end of the liquid inlet pipe in the lower chamber.

[0010] Furthermore, the self-sealing valve assembly includes a base plate, a push rod, a sealing plate, a bottom plate, and an elastic element;

[0011] The base plate is fixed on the inner wall of the housing, and the base plate has a through hole and a central hole that matches the outer diameter of the push rod; one end of the push rod passes through the central hole and is fixedly connected to the sealing plate, and the other end of the push rod is fixedly connected to the bottom plate.

[0012] The sealing plate has a sealing block for sealing the through hole on the side near the substrate, and the two ends of the elastic member abut against the substrate and the bottom plate respectively.

[0013] Furthermore, the elastic element is a spring sleeved on the push rod.

[0014] Furthermore, the length of the push rod is greater than the distance between the substrate and the top wall of the housing.

[0015] Furthermore, the housing includes an upper cover, a shell cylinder, and a base. The self-sealing valve assembly is threadedly connected to the inner wall of the shell cylinder, and the upper cover is detachably connected to the shell cylinder, while the shell cylinder is detachably connected to the base.

[0016] Furthermore, a sealing ring is provided between the upper cover and the shell;

[0017] On the contact surface between the shell and the upper cover, the sealing ring is fixed on the end face of the upper cover, and the end face of the shell is provided with a groove that matches the shape of the sealing ring; in use, the sealing ring in the upper cover is engaged in the groove on the end face of the shell.

[0018] Furthermore, the upper cover is fastened to the shell by screws.

[0019] Furthermore, the base has a groove inside that matches the outer diameter of the shell, and the base is threadedly connected to the shell.

[0020] The beneficial effects of this utility model are as follows:

[0021] When the external self-sealing suction oil filter provided by this utility model is used, the liquid flows in from the inlet pipe and passes through the metal mesh cover and filter cotton cover of different materials, thereby effectively intercepting impurities of different materials and particle sizes. Finally, it flows out from the outlet pipe after passing through the self-sealing valve assembly, which can effectively filter out impurities in the liquid and ensure the normal operation of the entire hydraulic system. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0023] Figure 2 This is a cross-sectional structural diagram of this embodiment.

[0024] Figure 3 This is an enlarged schematic diagram of part A.

[0025] Figure label:

[0026] 1-Shell, 2-Inlet pipe, 3-Outlet pipe, 4-Upper chamber, 5-Lower chamber, 6-Metal mesh cover, 7-Filter cotton cover, 8-Magnetic column, 9-Heating module, 10-Base plate, 11-Push rod, 12-Sealing plate, 13-Base plate, 14-Elastic element, 15-Through hole, 16-Sealing block, 17-Upper cover, 18-Shell cylinder, 19-Base, 20-Sealing ring. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0028] To address the issue of poor filtration efficiency in existing self-sealing oil suction filters, this embodiment provides an external self-sealing oil suction filter. During use, liquid flows in through the inlet pipe, where magnetic columns adsorb and filter impurities (such as ferrous impurities) that can be magnetically attracted. The liquid then passes sequentially through metal mesh covers and filter cotton covers of different materials to effectively intercept impurities of different materials and particle sizes. Finally, it flows out through the outlet pipe after passing through a self-sealing valve assembly. This effectively filters out impurities in the liquid, ensuring the normal operation of the entire hydraulic system.

[0029] like Figures 1 to 3 As shown, the external self-sealing oil filter provided in this embodiment includes a housing 1, an inlet pipe 2 and an outlet pipe 3 on the housing 1, and a self-sealing valve assembly inside the housing 1, which divides the interior of the housing 1 into an upper chamber 4 and a lower chamber 5.

[0030] In this embodiment, the inlet pipe 2 is connected to the lower chamber 5. For example... Figure 2 As shown, in the lower chamber 5, a magnetic column 8, a metal mesh cover 6, and a filter cotton cover 7 are arranged sequentially from the inside to the outside. One end of the liquid inlet pipe 2 extends out of the housing 1, and the other end is located between the magnetic column 8 and the metal mesh cover 6. In this embodiment, the liquid outlet pipe 3 is connected to the upper chamber 4, and one end of the liquid outlet pipe 3 extends out of the housing 1, while the other end is located inside the upper chamber 4.

[0031] During use, the liquid flows in through the inlet pipe 2, and is first filtered by the magnetic column 8 to remove magnetically attracted impurities (such as iron impurities). Then, it passes through the metal mesh cover 6 and the filter cotton cover 7 of different materials in sequence to effectively intercept impurities of different materials and particle sizes. Finally, it flows out through the outlet pipe 3 after passing through the self-sealing valve assembly. This effectively filters out impurities in the liquid and ensures the normal operation of the entire hydraulic system.

[0032] Through the internal structural design of the housing 1 in this embodiment, impurities in the liquid can be effectively filtered out, ensuring the normal operation of the entire hydraulic system.

[0033] Furthermore, such as Figure 2 As shown, a heating module 9 is also provided at the end of the liquid inlet pipe 2 in the lower chamber 5. In this embodiment, the heating module 9 is not specifically limited, as long as it can facilitate the heating of the liquid inside the lower chamber 5.

[0034] In this embodiment, the heating module 9 can heat the liquid in the lower chamber 5, so that the liquid will not have poor fluidity due to low temperature, which would prevent filtration from being impossible.

[0035] like Figure 3 As shown, the self-sealing valve assembly of this embodiment includes a base plate 10, a push rod 11, a sealing plate 12, a bottom plate 13, and an elastic element 14. The base plate 10 is fixed to the inner wall of the housing 1. Preferably, the base plate 10 and the inner wall of the housing 1 can be connected by threads.

[0036] In this embodiment, a through hole 15 and a central hole are provided on the substrate 10, and the central hole is adapted to the outer diameter of the push rod 11. In this embodiment, one end of the push rod 11 passes through the central hole and is fixedly connected to the sealing plate 12, and the other end of the push rod 11 is fixedly connected to the base plate 13. The sealing plate 12 has a sealing block 16 for sealing the through hole 15 on the side near the substrate 10, and the two ends of the elastic member 14 abut against the substrate 10 and the base plate 13 respectively. Preferably, the sealing block 16 can be made of rubber; the elastic member 14 can be a spring sleeved on the push rod 11.

[0037] More preferably, the length of the push rod 11 is greater than the distance between the base plate 10 and the top wall of the housing 1, so that the stroke of the push rod 11 can be limited by the top wall of the housing 1 during use, thereby increasing the structural reliability and practicality.

[0038] To facilitate assembly, maintenance, and replacement of the internal structure of the housing 1, the housing 1 in this embodiment includes an upper cover 17, a housing cylinder 18, and a base 19. The upper cover 17 is detachably connected to the housing cylinder 18, and the housing cylinder 18 is detachably connected to the base 19. The base plate 10 in the self-sealing valve assembly can be threadedly connected to the inner wall of the housing cylinder 18.

[0039] Specifically, the upper cover 17 and the shell 18 can be fastened together with screws.

[0040] To increase the sealing between the upper cover 17 and the shell 18, such as Figure 2 As shown, in this embodiment, a sealing ring 20 is provided between the upper cover 17 and the shell 18; and on the contact surface between the shell 18 and the upper cover 17, the sealing ring 20 is fixed on the end face of the upper cover 17, and the end face of the shell 18 is provided with a groove that matches the shape of the sealing ring 20; in use, the sealing ring 20 in the upper cover 17 is fastened in the groove on the end face of the shell 18.

[0041] To facilitate the detachable connection between the base 19 and the shell 18, this embodiment can provide a groove inside the base 19 that matches the outer diameter of the shell 18, and make the base 19 and the shell 18 threaded together.

[0042] In this embodiment, the liquid flows in through the inlet pipe 2 and is first filtered by the magnetic column 8 to remove magnetically attracted impurities (such as ferrous impurities). Then, it passes sequentially through a metal mesh cover 6 and a filter cotton cover 7 made of different materials to effectively intercept impurities of different materials and particle sizes, ensuring the proper functioning of the entire hydraulic system. Finally, it flows out through the outlet pipe 3 after passing through the self-sealing valve assembly. When the liquid flows through the self-sealing valve assembly, if the liquid pressure in the lower chamber 5 is too high, the liquid will push the base plate 13 and push rod 11 away from the base plate 10, causing the sealing block 16 on the sealing plate 12 to separate from the through hole 15 on the base plate 10. This allows the liquid to enter the upper chamber 4 through the through hole 15 on the base plate 10 and finally exit through the outlet pipe 3.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An externally sealed oil suction filter, characterized in that: The system includes a housing, on which an inlet pipe and an outlet pipe are provided, and inside the housing is a self-sealing valve assembly that divides the interior of the housing into an upper chamber and a lower chamber. In the lower chamber, a metal mesh cover and a filter cotton cover are arranged sequentially from the inside to the outside, and one end of the liquid inlet pipe extends out of the housing, while the other end is located inside the metal mesh cover; One end of the liquid outlet tube extends out of the housing, and the other end is located in the upper cavity.

2. The external self-sealing oil suction filter according to claim 1, characterized in that: The metal mesh cover is also equipped with a magnetic column, and one end of the liquid inlet pipe extends out of the housing, while the other end is located between the magnetic column and the metal mesh cover.

3. The external self-sealing oil suction filter according to claim 1 or 2, characterized in that: In the lower chamber, a heating module is also provided at the end of the liquid inlet pipe.

4. The external self-sealing oil suction filter according to claim 1 or 2, characterized in that: The self-sealing valve assembly includes a base plate, a push rod, a sealing plate, a bottom plate, and an elastic element; The base plate is fixed on the inner wall of the housing, and the base plate has a through hole and a central hole that matches the outer diameter of the push rod; one end of the push rod passes through the central hole and is fixedly connected to the sealing plate, and the other end of the push rod is fixedly connected to the bottom plate. The sealing plate has a sealing block for sealing the through hole on the side near the substrate, and the two ends of the elastic member abut against the substrate and the bottom plate respectively.

5. The external self-sealing oil suction filter according to claim 4, characterized in that: The elastic element is a spring sleeved on the push rod.

6. The external self-sealing oil suction filter according to claim 4, characterized in that: The length of the push rod is greater than the distance between the base plate and the top wall of the housing.

7. The external self-sealing oil suction filter according to claim 1, 2, 5 or 6, characterized in that: The housing includes an upper cover, a shell cylinder, and a base. The self-sealing valve assembly is threadedly connected to the inner wall of the shell cylinder, and the upper cover is detachably connected to the shell cylinder, while the shell cylinder is detachably connected to the base.

8. The external self-sealing oil suction filter according to claim 7, characterized in that: A sealing ring is provided between the upper cover and the shell; On the contact surface between the shell and the upper cover, the sealing ring is fixed on the end face of the upper cover, and the end face of the shell is provided with a groove that matches the shape of the sealing ring; in use, the sealing ring in the upper cover is engaged in the groove on the end face of the shell.

9. The external self-sealing oil suction filter according to claim 8, characterized in that: The upper cover is fastened to the shell by screws.

10. The external self-sealing oil suction filter according to claim 7, characterized in that: The base has a groove inside that matches the outer diameter of the shell, and the base is threadedly connected to the shell.

Images