A gravity settling multi-stage filtration device

Abstract

The utility model discloses a gravity settlement multistage filter equipment, including first oil tank, second oil tank and third oil tank, the first oil tank is installed in the top of second oil tank, the second oil tank is installed in the top of third oil tank, the bottom of first oil tank, second oil tank and third oil tank are communicated with the oil pit, the filter mechanism is installed in the oil pit inside, the utility model has the advantages that convenient maintenance, solved the hydraulic oil filter equipment in the process of using, the filter material inside filter equipment is inconvenient to maintain replacement, is difficult to apply convenient and reliability demand high scene, and maintenance difficulty is higher, increased technical staff work load's problem.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil treatment technology, specifically a gravity settling multi-stage filtration device. Background Technology

[0002] Hydraulic systems are widely used in mechanical equipment, and the cleanliness of the hydraulic oil directly affects the system's operating efficiency and service life. In current technology, hydraulic oil filtration typically relies on complex filtration equipment, such as high-pressure filters with precision filter elements or circulating filtration systems requiring external power. While these devices can effectively remove contaminants, they suffer from problems such as complex structure, difficult maintenance, susceptibility to damage, and high operating costs.

[0003] Furthermore, existing filtration devices often require frequent filter element replacements or rely on professional technicians for maintenance, making them unsuitable for scenarios with high demands for convenience and reliability. Therefore, a filtration device with a simple structure, stable operation, and no need for precision components is needed to meet the practical requirements of hydraulic oil purification. Utility Model Content

[0004] The purpose of this utility model is to provide a gravity settling multi-stage filtration device with the advantage of easy maintenance. It solves the problem that existing hydraulic oil filtration devices are not convenient to maintain and replace the filter media inside the filtration device during use, making them unsuitable for scenarios with high requirements for convenience and reliability. Moreover, the maintenance is difficult and increases the workload of technicians.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gravity settling multi-stage filtration device includes a first oil tank, a second oil tank, and a third oil tank; the first oil tank is installed on top of the second oil tank, and the second oil tank is installed on top of the third oil tank; the bottoms of the first, second, and third oil tanks are connected to an oil hopper; a filtration mechanism is installed inside the oil hopper; an oil tank cover is installed on the top of the first oil tank, and an oil inlet pipe is connected to the top of the oil tank cover; an oil outlet pipe is connected to the oil hopper at the bottom of the third oil tank, and an oil outlet valve is connected to the oil outlet end of the oil outlet pipe; a support is movably connected to the bottom of the third oil tank.

[0007] As a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, the top and bottom outer walls of the first oil tank, the second oil tank and the third oil tank are all provided with protruding mounting rings; in two adjacent mounting rings, one mounting ring is provided with a retaining seat and the other mounting ring is provided with a retaining groove. By the cooperation of the retaining seat and the retaining groove, the first oil tank, the second oil tank and the third oil tank are positioned and snapped together.

[0008] In a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, a retaining seat and a slot are provided between the bottom surface of the oil tank cover and the mounting ring at the top of the first oil tank. The retaining seat and the slot cooperate to position and snap together the oil tank cover and the first oil tank. A retaining seat and a slot are provided between the top surface of the bracket and the mounting ring at the bottom of the third oil tank. The retaining seat and the slot cooperate to position and snap together the bracket and the third oil tank.

[0009] As a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, the bottom of the inner walls of the first oil tank, the second oil tank and the third oil tank are all provided with retaining rings; the top edge of the oil hopper is provided with a convex ring, the bottom of the convex ring overlaps with the top of the retaining ring, and the outer wall of the convex ring is clearance-fitted with the inner walls of the first oil tank, the second oil tank and the third oil tank.

[0010] As a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, the filtration mechanism includes a fixed frame, the surface of which is movably connected to the top of the inner wall of the oil hopper, and a metal support mesh is installed at the bottom of the fixed frame.

[0011] In a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, filter paper is movably connected to the bottom of the inner wall of the fixed frame, and the filter paper is located on top of the metal support mesh and movably connected thereto.

[0012] In a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, a support ring is fixedly sleeved on the surface of the fixed frame, the bottom of the support ring overlaps with the top of the oil hopper, and the outer wall of the support ring is fitted with the inner walls of the first oil tank, the second oil tank and the third oil tank with a clearance fit.

[0013] In a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, a rubber sealing ring is movably connected to the top of the filter paper, and a pressure ring is movably connected to the top of the rubber sealing ring. The surfaces of the rubber sealing ring and the pressure ring are movably connected to the inner wall of the fixed frame.

[0014] As a preferred embodiment of the gravity sedimentation multi-stage filtration device of this utility model, manual fixing components are installed on the left and right sides of the top of the pressure ring. The bottom of the manual fixing component passes through the rubber sealing ring and the filter paper and is threadedly connected to the bottom of the inner wall of the fixing frame.

[0015] In a preferred embodiment of the gravity settling multi-stage filtration device of this utility model, a wristband is installed on the top of the manual fixing component.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model effectively removes large particulate contaminants from hydraulic oil through a combination of gravity and multi-stage filter paper filtration. It has the advantages of simple structure, convenient operation, high reliability, no precision parts, not easily damaged, and no need for complicated maintenance. When filtering hydraulic oil, the hydraulic oil containing particulate matter enters the inner cavity of the first oil tank through the oil inlet pipe and the oil tank cover. The hydraulic oil in the inner cavity of the first oil tank flows downward due to gravity and is first filtered through the filter paper with a pore size of 50μm. The hydraulic oil after the initial filtration enters the second and third oil tanks in sequence through the oil hopper, and is filtered a second and third time through the filter paper with pore sizes of 30μm and 20μm, respectively. Finally, the filtered hydraulic oil enters the oil outlet pipe and oil outlet valve through the oil hopper, and is discharged into the storage container for collection through the oil outlet valve.

[0018] 2. This utility model facilitates the installation and replacement of filter paper through the combined use of a manual fixing component, a rubber sealing ring, and a pressure ring. When replacing the filter paper, the manual fixing component is unscrewed from the threaded hole at the bottom of the inner wall of the fixing frame. During the unscrewing process, the manual fixing component disengages from the filter paper, rubber sealing ring, and pressure ring, releasing their fixation. Then, the pressure ring, rubber sealing ring, and filter paper are removed sequentially from the inside of the fixing frame. After removal, a new filter paper is installed. The rubber sealing ring is installed on the side opposite the filter paper and pressure ring to seal the top of the filter paper. The manual fixing component passes through the pressure ring, rubber sealing ring, and filter paper to fix it, preventing the filter paper from moving during operation. The metal support mesh supports the bottom of the filter paper, and the hydraulic oil filtered by the filter paper passes through the metal support mesh into the oil hopper. Attached Figure Description

[0019] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a cross-sectional view of the filtration mechanism of this utility model;

[0024] Figure 4 This utility model Figure 3 A magnified view of A in the middle.

[0025] In the diagram: 1. First oil tank; 2. Second oil tank; 3. Third oil tank; 4. Filtration mechanism; 5. Oil hopper; 6. Oil tank cover; 7. Oil inlet pipe; 8. Support; 9. Oil outlet pipe; 10. Oil outlet valve; 401. Fixing frame; 402. Metal support mesh; 403. Filter paper; 404. Rubber sealing ring; 405. Pressure ring; 406. Support ring; 407. Manual fixing component.

[0026] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figures 1-4 A gravity settling multi-stage filtration device includes a first oil tank 1, a second oil tank 2 and a third oil tank 3, wherein the first oil tank 1 is installed on top of the second oil tank 2 and the second oil tank 2 is installed on top of the third oil tank 3.

[0031] Furthermore, the bottoms of the first oil tank 1, the second oil tank 2, and the third oil tank 3 are connected to an oil hopper 5.

[0032] Furthermore, the oil hopper 5 at the bottom of the first oil tank 1 extends into the inner cavity of the second oil tank 2, and the oil hopper 5 at the bottom of the second oil tank 2 extends into the inner cavity of the third oil tank 3.

[0033] Furthermore, an oil tank cover 6 is installed on the top of the first oil tank 1, and an oil inlet pipe 7 is connected to the top of the oil tank cover 6.

[0034] Furthermore, an oil inlet hose is connected to the top of the oil inlet pipe 7 via a flange, and the oil inlet hose is connected to an oil pump, which draws hydraulic oil containing particulate matter.

[0035] Furthermore, the oil hopper 5 at the bottom of the third oil tank 3 is connected to an oil outlet pipe 9, and the oil outlet end of the oil outlet pipe 9 is connected to an oil outlet valve 10.

[0036] Furthermore, the oil hopper 5 at the bottom of the third oil tank 3 is connected to the oil outlet pipe 9 via a flange, and the oil outlet pipe 9 is connected to the oil outlet valve 10 via a flange.

[0037] Furthermore, the bottom of the third fuel tank 3 is movably connected to a bracket 8.

[0038] Furthermore, the top and bottom outer walls of the first oil tank 1, the second oil tank 2, and the third oil tank 3 are all provided with protruding mounting rings; in two adjacent mounting rings, one mounting ring is provided with a retaining seat and the other mounting ring is provided with a retaining groove. By cooperating with the retaining seat and the retaining groove, the first oil tank 1, the second oil tank 2, and the third oil tank 3 are positioned and snapped together.

[0039] Furthermore, a retaining seat and a slot are provided between the bottom surface of the fuel tank cap 6 and the mounting ring on the top of the first fuel tank 1. The fuel tank cap 6 and the first fuel tank 1 are positioned and snapped together by the cooperation of the retaining seat and the slot.

[0040] Furthermore, a retaining seat and a slot are provided between the top surface of the bracket 8 and the mounting ring at the bottom of the third oil tank 3. The bracket 8 and the third oil tank 3 are positioned and snapped together by the cooperation of the retaining seat and the slot.

[0041] Furthermore, the bottom of the inner wall of the first oil tank 1, the second oil tank 2, and the third oil tank 3 are all provided with retaining rings; the top edge of the oil hopper is provided with a convex ring, the bottom of the convex ring overlaps with the top of the retaining ring, and the outer wall of the convex ring is fitted with the inner wall of the first oil tank 1, the second oil tank 2, and the third oil tank 3 with a clearance.

[0042] Furthermore, a filter mechanism 4 is installed inside the oil hopper 5.

[0043] Furthermore, the filtration mechanism 4 includes a fixed frame 401, the surface of which is movably connected to the top of the inner wall of the oil hopper 5, and a metal support mesh 402 is installed at the bottom of the fixed frame 401.

[0044] Furthermore, a filter paper 403 is movably connected to the bottom of the inner wall of the fixed frame 401, and the filter paper 403 is located on top of the metal support mesh 402 and movably connected to it.

[0045] Furthermore, a support ring 406 is fixedly sleeved on the surface of the fixed frame 401. The bottom of the support ring 406 overlaps with the top of the oil tank 5, and the outer wall of the support ring 406 is fitted with the inner wall of the first oil tank 1, the second oil tank 2 and the third oil tank 3 with a clearance.

[0046] Furthermore, a rubber sealing ring 404 is movably connected to the top of the filter paper 403, and a pressure ring 405 is movably connected to the top of the rubber sealing ring 404. The surfaces of the rubber sealing ring 404 and the pressure ring 405 are movably connected to the inner wall of the fixed frame 401.

[0047] Furthermore, manual fasteners 407 are installed on the top left and right sides of the pressure ring 405. The bottom of the manual fasteners 407 passes through the rubber sealing ring 404 and the filter paper 403 and is threadedly connected to the bottom of the inner wall of the fixing frame 401.

[0048] Furthermore, a wristband is mounted on the top of the manual fastener 407.

[0049] Furthermore, the manual fastener 407 is a bolt, and the inner wall of the fixing frame 401 has a threaded hole that mates with the manual fastener 407.

[0050] Furthermore, the filter paper 403 inside the first oil tank 1 has a pore size of 50 μm, the filter paper 403 inside the second oil tank 2 has a pore size of 30 μm, and the filter paper 403 inside the third oil tank 3 has a pore size of 20 μm.

[0051] Furthermore, the metal support mesh 402 is made of stainless steel and is installed at the bottom of the fixed frame 401 by bolts. The bottom of the fixed frame 401 is provided with an oil outlet hole that works in conjunction with the metal support mesh 402.

[0052] When filtering hydraulic oil, hydraulic oil containing particulate matter enters the inner cavity of the first oil tank 1 through the oil inlet pipe 7 and the oil tank cover 6. The hydraulic oil in the inner cavity of the first oil tank 1 flows downward due to gravity and is first filtered through the filter paper 403 with a pore size of 50μm. The hydraulic oil after the initial filtration enters the second oil tank 2 and the third oil tank 3 in sequence through the oil hopper 5. It is then filtered a second and a third time through the filter paper 403 with pore sizes of 30μm and 20μm, respectively. Finally, the filtered hydraulic oil enters the oil outlet pipe 9 and the oil outlet valve 10 through the oil hopper 5 and is discharged into the storage container for collection through the oil outlet valve 10.

[0053] When the filter paper 403 needs to be replaced or maintained, first disassemble the first oil tank 1, the second oil tank 2 and the third oil tank 3, remove the oil tank cover 6 from the top of the first oil tank 1, and then separate the first oil tank 1, the second oil tank 2 and the third oil tank 3 in sequence. After separation, replace the filter paper 403 inside the filter mechanism 4.

[0054] When replacing filter paper 403, unscrew the manual fixing piece 407 from the threaded hole at the bottom of the inner wall of the fixing frame 401. During the unscrewing process, the manual fixing piece 407 disengages from the filter paper 403, rubber sealing ring 404, and pressure ring 405, releasing the fixing of the filter paper 403, rubber sealing ring 404, and pressure ring 405. Then, remove the pressure ring 405, rubber sealing ring 404, and filter paper 403 sequentially from the inside of the fixing frame 401. After removal, install the new filter paper 403. The rubber sealing ring 404 is installed on the opposite side of the filter paper 403 and pressure ring 405 to seal the top of the filter paper 403. The manual fixing piece 407 passes through the pressure ring 405, rubber sealing ring 404, and filter paper 403 to fix them and prevent the filter paper 403 from moving during operation. The metal support mesh 402 supports the bottom of the filter paper 403. The hydraulic oil filtered by the filter paper 403 passes through the metal support mesh 402 and enters the oil hopper 5.

[0055] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0056] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A gravity sedimentation multi-stage filtration device, characterized in that: It includes a first fuel tank (1), a second fuel tank (2), and a third fuel tank (3); The first oil tank (1) is installed on top of the second oil tank (2), and the second oil tank (2) is installed on top of the third oil tank (3); The bottoms of the first oil tank (1), the second oil tank (2) and the third oil tank (3) are connected to an oil hopper (5); The oil hopper (5) is equipped with a filter mechanism (4); The first oil tank (1) is equipped with an oil tank cover (6) on top, and the top of the oil tank cover (6) is connected to an oil inlet pipe (7). The oil hopper (5) at the bottom of the third oil tank (3) is connected to an oil outlet pipe (9), and the oil outlet end of the oil outlet pipe (9) is connected to an oil outlet valve (10). The bottom of the third oil tank (3) is movably connected to a bracket (8).

2. The gravity sedimentation multi-stage filtration device according to claim 1, characterized in that: The first oil tank (1), the second oil tank (2) and the third oil tank (3) are provided with protruding mounting rings on the top and bottom outer walls; in two adjacent mounting rings, one mounting ring is provided with a retaining seat and the other mounting ring is provided with a retaining groove. The first oil tank (1), the second oil tank (2) and the third oil tank (3) are positioned and snapped together by the retaining seat and the retaining groove.

3. The gravity sedimentation multi-stage filtration device according to claim 2, characterized in that: The bottom surface of the fuel tank cover (6) and the mounting ring at the top of the first fuel tank (1) are provided with a retainer and a slot. The fuel tank cover (6) and the first fuel tank (1) are positioned and snapped together by the retainer and the slot. The top surface of the bracket (8) and the mounting ring at the bottom of the third oil tank (3) are provided with a card seat and a card slot. The bracket (8) and the third oil tank (3) are positioned and snapped together by the cooperation of the card seat and the card slot.

4. The gravity sedimentation multi-stage filtration device according to claim 1, characterized in that: The bottom of the inner wall of the first oil tank (1), the second oil tank (2) and the third oil tank (3) are provided with retaining rings; the top edge of the oil hopper is provided with a convex ring, the bottom of the convex ring overlaps with the top of the retaining ring, and the outer wall of the convex ring is in clearance fit with the inner wall of the first oil tank (1), the second oil tank (2) and the third oil tank (3).

5. The gravity sedimentation multi-stage filtration device according to claim 1, characterized in that: The filtration mechanism (4) includes a fixed frame (401), the surface of which is movably connected to the top of the inner wall of the oil hopper (5), and a metal support mesh (402) is installed at the bottom of the fixed frame (401).

6. The gravity sedimentation multi-stage filtration device according to claim 5, characterized in that: A filter paper (403) is movably connected to the bottom of the inner wall of the fixed frame (401), and the filter paper (403) is located on top of the metal support mesh (402) and movably connected to it.

7. The gravity sedimentation multi-stage filtration device according to claim 6, characterized in that: The fixed frame (401) is fixedly fitted with a support ring (406). The bottom of the support ring (406) overlaps with the top of the oil tank (5). The outer wall of the support ring (406) is fitted with the inner wall of the first oil tank (1), the second oil tank (2) and the third oil tank (3) with a clearance fit.

8. The gravity sedimentation multi-stage filtration device according to claim 7, characterized in that: A rubber sealing ring (404) is movably connected to the top of the filter paper (403), and a pressure ring (405) is movably connected to the top of the rubber sealing ring (404). The surfaces of the rubber sealing ring (404) and the pressure ring (405) are movably connected to the inner wall of the fixed frame (401).

9. A gravity sedimentation multi-stage filtration device according to claim 8, characterized in that: The pressure ring (405) is equipped with manual fasteners (407) on the top left and right sides. The bottom of the manual fasteners (407) passes through the rubber sealing ring (404) and the filter paper (403) and is threaded to the bottom of the inner wall of the fixed frame (401).

10. A gravity sedimentation multi-stage filtration device according to claim 9, characterized in that: A wristband is mounted on the top of the manual fastener (407).

Images