A shock resistant stabilized hydraulic filter

Abstract

The utility model belongs to hydraulic filter technical field especially is a kind of stable hydraulic filter of impact resistance, including hydraulic filter, hydraulic filter includes the upper casing of being arranged at top, the bottom of upper casing is connected with lower casing, the bottom end swing joint of lower casing is connected with adjusting assembly, the inside swing joint of lower casing is connected with filter assembly, the bottom end of filter assembly is connected with buffer assembly, the utility model is through setting buffer assembly, when filter assembly is subjected to greater impact force, drive filter assembly to move and drive buffer assembly to contract, simultaneously, impact force is converted into elastic potential energy in buffer assembly by reset spring, drive telescopic link and movable sleeve reset, movable sleeve reset drives filter assembly reset movement, filter assembly contracts and resets simultaneously, and rubber piston is moved in movable groove by outside again, the impact force that the liquid generates to filter assembly is absorbed by the damping generated by rubber piston movement, and stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic filter technology, specifically to an impact-resistant and stable hydraulic filter. Background Technology

[0002] Hydraulic systems are widely used in engineering machinery, metallurgy and aviation, industrial machinery and mining machinery, heavy industrial transmission and other fields. However, during operation, hydraulic systems will generate various mechanical impurities due to processing precision and processing technology issues. These impurities, such as water rust, casting sand, welding slag, iron filings, paint, paint skin and cotton yarn, will mix in the hydraulic oil. In order to improve the operating efficiency of the equipment, the hydraulic oil of the hydraulic system needs to be filtered to reduce damage to the hydraulic system.

[0003] A search revealed Chinese Patent Publication No. CN202321911120.8, which describes a hydraulic filter comprising an upper housing and a lower housing that are sealed together. A filter element is installed inside the lower housing. A signal device is located on the upper part of the upper housing. A piston assembly and a spring are sequentially installed in one cavity of the signal device housing. The end of the spring is sealed by a clamping element. A magnet is provided at the end of the piston assembly. Connecting channels are provided on the signal device housings on both sides of the piston assembly, connecting the two chambers of the piston assembly to the inlet and outlet of the liquid. A micro switch is installed in the other cavity of the signal device housing. The front of the micro switch has an iron piece that attracts the magnet. This utility model has the advantages of high reliability, long service life, good control quality, and wide applicable flow and pressure difference range, effectively extending the operating cycle of fuel pumps or mechanical hydraulic systems. However, the filter in this application lacks a buffer device. In the initial stage of oil inlet filtration, the hydraulic oil rapidly impacts the filter housing, causing damage to the hydraulic filter. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an impact-resistant and stable hydraulic filter, solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant and stable hydraulic filter, the hydraulic filter including an upper housing disposed at the top, a lower housing connected to the bottom of the upper housing, an adjusting component movably connected to the bottom end of the lower housing, an inlet port at one end of the upper housing, and an outlet port at the other end of the upper housing;

[0006] A filter assembly is movably connected inside the lower housing. A filter element is installed inside the filter assembly. A filter plate is arranged in a ring around the outer side of the filter element. A buffer assembly is connected to the bottom of the filter assembly. A positioning block is fixedly connected to the top of the buffer assembly. A movable sleeve is fixedly connected to the bottom of the positioning block. A telescopic rod is fixedly connected to the top inside the movable sleeve.

[0007] As a preferred embodiment of this utility model, the lower housing is inserted into the upper housing, and a sealing ring is provided between the inner wall of the lower housing and the outer surface of the upper housing to improve the sealing performance of the connection between the lower housing and the upper housing.

[0008] As a preferred technical solution of this utility model, a connecting pipe port is provided at the bottom of the inner wall of the upper shell. The upper shell is inserted into the filter assembly through the connecting pipe port. The liquid inlet and the connecting pipe port allow the liquid to be introduced into the filter assembly for filtration through the connecting pipe port.

[0009] As a preferred embodiment of this utility model, a connecting plate is provided at the bottom of the filter assembly, and a sealing rubber ring is fixedly connected to the top of the connecting plate. The outer side of the sealing rubber ring is attached to the inner wall of the lower housing, and a rubber piston is fixedly provided on the outer side of the connecting plate. The sealing rubber ring and the rubber piston improve the sealing performance between the connecting plate and the inner wall of the lower housing.

[0010] As a preferred technical solution of this utility model, a movable groove is provided at the bottom of the inner wall of the lower housing, the outer side of the rubber piston is attached to the inner wall of the movable groove, the connecting plate is movably connected to the movable groove through the rubber piston, and the filter assembly slides in the movable groove of the inner wall of the lower housing through the rubber piston.

[0011] As a preferred embodiment of this utility model, a reset spring is sleeved on the outer surface of the telescopic rod, and the reset spring is disposed between the inner wall of the movable sleeve and the outer surface of the telescopic rod, so that the positioning block can be automatically reset by the reset spring.

[0012] In a preferred embodiment of this utility model, an adjusting bolt is movably connected inside the adjusting component, and a connecting block is fixedly connected to the bottom of the telescopic rod. The adjusting bolt and the connecting block are connected by threads, and the adjusting bolt drives the telescopic rod to move through the threads, thereby adjusting the position of the buffer component and changing the tightness.

[0013] Compared with the prior art, this utility model provides an impact-resistant and stable hydraulic filter, which has the following beneficial effects:

[0014] 1. This shock-resistant and stable hydraulic filter, by setting a buffer component, when the filter component is subjected to a large impact force, drives the filter component to move, so that the connecting plate can slide in the movable groove through the outer rubber piston. When the rubber piston slides, it generates damping to absorb part of the impact force. At the same time, the moving connecting plate drives the positioning block and the movable sleeve to move. The movement of the movable sleeve squeezes the internal telescopic rod and the return spring. The return spring converts the impact force into elastic potential energy, which drives the telescopic rod and the movable sleeve to return to their original positions. The return of the movable sleeve drives the filter component to return to its original position and move. At the same time, the return of the filter component drives the rubber piston to slide to its original position and further absorb the impact force of the liquid on the filter component, thereby improving stability.

[0015] 2. This shock-resistant and stable hydraulic filter, by setting a filter assembly, the filter assembly is attached to the inner wall of the lower housing by a sealing rubber ring of the bottom connecting plate. The connecting plate can slide in the movable groove by a rubber piston. The sealing performance is ensured by the sealing rubber ring and the rubber piston to prevent liquid from flowing out from the joint between the connecting plate and the inner wall of the lower housing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional internal structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the upper and lower shells of this utility model;

[0019] Figure 4 This is a cross-sectional view of the internal structure of the filter assembly of this utility model;

[0020] Figure 5 This is a cross-sectional view of the internal structure of the buffer component of this utility model.

[0021] In the diagram: 1. Hydraulic filter; 2. Upper housing; 3. Lower housing; 301. Movable groove; 4. Adjustment assembly; 401. Adjustment bolt; 5. Liquid inlet; 6. Liquid outlet; 7. Filter assembly; 701. Filter element; 702. Filter plate; 703. Connecting plate; 704. Sealing rubber ring; 705. Rubber piston; 8. Buffer assembly; 801. Positioning block; 802. Movable sleeve; 803. Return spring; 804. Telescopic rod. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 In this embodiment: an impact-resistant and stable hydraulic filter includes a hydraulic filter 1. The hydraulic filter 1 includes an upper housing 2 disposed at the top, a lower housing 3 connected to the bottom of the upper housing 2, an adjusting component 4 movably connected to the bottom end of the lower housing 3 to adjust the tightness of a buffer component 8, an inlet 5 opened at one end of the upper housing 2, an outlet 6 opened at the other end of the upper housing 2, a filter component 7 movably connected inside the lower housing 3 to filter the internal liquid, and a buffer component 8 connected to the bottom end of the filter component 7 to buffer the internal filter component 7.

[0024] Please see Figure 2 In this embodiment: the lower housing 3 is inserted into the upper housing 2. A sealing ring is provided between the inner wall of the lower housing 3 and the outer surface of the upper housing 2 to improve the sealing performance of the connection between the lower housing 3 and the upper housing 2. A connecting pipe port is provided at the bottom of the inner wall of the upper housing 2. The upper housing 2 is inserted into the filter assembly 7 through the connecting pipe port. The liquid inlet 5 introduces the liquid into the filter assembly 7 for filtration through the connecting pipe port.

[0025] Please see Figure 2-4In this embodiment: a filter element 701 is provided inside the filter assembly 7, and a filter plate 702 is arranged in a ring around the outer side of the filter element 701. The filter element 701 and the filter plate 702 perform thorough filtration. A connecting plate 703 is provided at the bottom of the filter assembly 7, and a sealing rubber ring 704 is fixedly connected to the top of the connecting plate 703. The connecting plate 703 is sealed to the inner wall of the lower housing 3 by the outer side of the sealing rubber ring 704, preventing liquid from flowing out through the connecting plate 703. A rubber piston 705 is fixedly provided on the outer side of the connecting plate 703. A movable groove 301 is opened at the bottom of the inner wall of the lower housing 3. The outer side of the rubber piston 705 is attached to the inner wall of the movable groove 301. Liquid impacts the filter assembly 7, causing the connecting plate 703 to move. The connecting plate 703 can move through the rubber piston. 705 slides within the movable groove 301. The rubber piston 705 further improves the sealing performance, preventing liquid from flowing out from the contact point between the connecting plate 703 and the inner wall of the lower housing 3. The bottom of the filter assembly 7 has a groove corresponding to the positioning block 801 fixedly connected to the top of the buffer assembly 8. The bottom of the positioning block 801 is fixedly connected to a movable sleeve 802. The top of the inside of the movable sleeve 802 is fixedly connected to a telescopic rod 804. A return spring 803 is sleeved on the outer surface of the telescopic rod 804. The movement of the filter assembly 7 causes the positioning block 801 and the movable sleeve 802 to move. The movement of the movable sleeve 802 squeezes the internal telescopic rod 804 and the return spring 803. The return spring 803 drives the telescopic rod 804 and the movable sleeve 802 to reset, thereby driving the filter assembly 7 to reset.

[0026] Please see Figure 5 In this implementation scheme: an adjusting bolt 401 is movably connected inside the adjusting component 4, and a connecting block is fixedly connected to the bottom of the telescopic rod 804. The adjusting bolt 401 and the connecting block are connected by threads. The adjusting bolt 401 drives the connecting block to move, thereby changing the position of the telescopic rod 804 and thus changing the tightness of the buffer component 8.

[0027] In this embodiment, the working principle and usage process of this utility model are as follows: During use, the liquid is introduced into the hydraulic filter 1 through the liquid inlet 5, filtered by the filter assembly 7, and then discharged through the liquid outlet 6. When the filter assembly 7 is subjected to a large impact force, it moves, allowing the connecting plate 703 to slide within the movable groove 301 via the outer rubber piston 705. The sliding of the rubber piston 705 generates damping to absorb part of the impact force. Simultaneously, the movement of the connecting plate 703 drives the positioning block 801 and the movable sleeve 802 to move. The movement of the movable sleeve 802 squeezes the internal telescopic rod 804 and the return spring 803. The return spring 803 converts the impact force into elastic potential energy, causing the telescopic rod 804 and the movable sleeve 802 to reset. The reset of the movable sleeve 802 causes the filter assembly 7 to reset and move. Simultaneously, the reset and movement of the filter assembly 7 also causes the rubber piston 705 to slide and reset, further absorbing the impact force generated by the liquid on the filter assembly 7 and improving stability.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 impact-resistant, stable hydraulic filter, comprising a hydraulic filter (1), characterized in that: The hydraulic filter (1) includes an upper housing (2) disposed at the top, a lower housing (3) connected to the bottom of the upper housing (2), an adjusting component (4) movably connected to the bottom end of the lower housing (3), an inlet (5) opened at one end of the upper housing (2), and an outlet (6) opened at the other end of the upper housing (2). The lower housing (3) is movably connected to a filter assembly (7), the filter assembly (7) is provided with a filter element (701) inside, a filter plate (702) is provided on the outer side of the filter element (701) in a ring, the bottom end of the filter assembly (7) is connected to a buffer assembly (8), the top of the buffer assembly (8) is fixedly connected to a positioning block (801), the bottom of the positioning block (801) is fixedly connected to a movable sleeve (802), and the top of the movable sleeve (802) is fixedly connected to a telescopic rod (804).

2. The shock-resistant, stable hydraulic filter according to claim 1, characterized in that: The lower housing (3) is inserted into the upper housing (2), and a sealing ring is provided between the inner wall of the lower housing (3) and the outer surface of the upper housing (2).

3. The shock-resistant, stable hydraulic filter according to claim 1, characterized in that: The bottom of the inner wall of the upper housing (2) is provided with a connecting pipe, and the upper housing (2) is inserted into the filter assembly (7) through the connecting pipe.

4. The shock-resistant stable hydraulic filter according to claim 1, characterized in that: The bottom end of the filter assembly (7) is provided with a connecting plate (703), and a sealing rubber ring (704) is fixedly connected to the top of the connecting plate (703). The outer side of the sealing rubber ring (704) is attached to the inner wall of the lower housing (3), and a rubber piston (705) is fixedly provided on the outer side of the connecting plate (703).

5. The shock-resistant, stable hydraulic filter according to claim 4, characterized in that: The bottom of the inner wall of the lower housing (3) is provided with a movable groove (301), the outer side of the rubber piston (705) is attached to the inner wall of the movable groove (301), and the connecting plate (703) is movably connected to the movable groove (301) through the rubber piston (705).

6. The shock-resistant, stable hydraulic filter according to claim 1, characterized in that: A return spring (803) is sleeved on the outer surface of the telescopic rod (804), and the return spring (803) is located between the inner wall of the movable sleeve (802) and the outer surface of the telescopic rod (804).

7. The shock-resistant, stable hydraulic filter according to claim 6, characterized in that: The adjusting assembly (4) is internally connected to an adjusting bolt (401), and the bottom of the telescopic rod (804) is fixedly connected to a connecting block. The adjusting bolt (401) and the connecting block are connected by threads.

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