CN210423842U - Two-way circulation filter - Google Patents
Two-way circulation filter Download PDFInfo
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- CN210423842U CN210423842U CN201920972202.0U CN201920972202U CN210423842U CN 210423842 U CN210423842 U CN 210423842U CN 201920972202 U CN201920972202 U CN 201920972202U CN 210423842 U CN210423842 U CN 210423842U
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- valve
- filter
- valve rod
- sleeve
- flange
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Abstract
The utility model provides a two-way circulation filter, includes the casing, install the filter core in the casing, the filter head of fixing in the casing upper end is connected at the filter core top, all installs the flange on the terminal surface at both ends about the filter head, is equipped with the hydraulic fluid port on the flange, the filter head is internal to be located and installs a sliding valve between 2 hydraulic fluid ports, and the case in the sliding valve compresses tightly on the valve barrel through a unsteady valve rod and dog, split pin, spring, through the removal of sliding valve and opening, closing of corresponding case, realizes two-way circulation function.
Description
Technical Field
The utility model relates to a two-way circulation filter.
Background
At present, chinese patent with application number 201320496263.7 on the market discloses a two-way reversible filter, including locating the interior mobile valve barrel between two hydraulic fluid ports of oil duct, the integrative setting of valve barrel, the valve barrel is equipped with two sealing portions that can realize the drainage groove is sealed, and the sealing portion laminates in the oil duct inner wall, is equipped with the feeding chamber between two sealing portions, is equipped with two check valves in the feeding chamber, and the check valve is towards two hydraulic fluid ports respectively. Although the two-way circulation filter realizes the interchange reversibility of the oil inlet and the oil outlet, in the actual working process, the valve rod of the one-way valve is directly screwed in the blind hole of the valve sleeve, the valve rod is difficult to loosen and is difficult to loosen, and frequent reversing and liquid flow impact easily cause the valve rod to loosen, so that the one-way valve falls off and the filtering fails; in addition, because the valve rod of the check valve is fixed, the check valve does not have the functions of automatic adjustment and compensation after being worn, and the check valve is unreliable in sealing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses its aim at just provides a two-way circulation filter, has solved the not enough of above-mentioned background art existence, has the characteristics that can realize two-way circulation function.
The technical scheme adopted for achieving the purpose is that the bidirectional circulation filter comprises a shell, wherein a filter element is installed in the shell, the top of the filter element is connected with a filter head fixed at the upper end of the shell, flanges are installed on the end faces of the left end and the right end of the filter head respectively, oil ports are arranged on the flanges, a slide valve is installed between 2 oil ports in the filter head and comprises a valve sleeve, two valve cavities are symmetrically arranged in the valve sleeve, a valve core is arranged in each valve cavity, 2 valve cores are all sleeved on a floatable valve rod, a spring sleeved on the valve rod is arranged on one side of each valve core, one end of the valve rod is of a fixed stop block structure, and a movable stop block is installed at the other end of; the movable stop block and the fixed stop block limit the compression spring through the split pins, so that 2 valve cores are compressed in the valve sleeve.
Advantageous effects
Compared with the prior art, the utility model has the following advantages.
1. The utility model has the bidirectional circulation filtering function;
2. the valve rod of the utility model can float in the valve sleeve, and can automatically adjust and compensate after the valve core is worn, thereby ensuring the reliability of the sealing of the valve core;
3. the two springs of the utility model are arranged on one valve rod, the pressing force of the springs is automatically and uniformly distributed, and the non-uniform stress of the valve core is avoided;
4. the utility model discloses a design of valve rod adopts locking loose structure, has avoided under switching-over and the liquid stream impact operating mode, and the case drops to lead to filtering failure, improved the holistic reliability of filter.
Drawings
The present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a two-way flow filter according to the present invention;
FIG. 2 is an enlarged view of part A of FIG. 1;
FIG. 3 is a schematic view of the flow direction of the bidirectional flow filter according to the present invention when oil is fed to the left side of the bidirectional flow filter;
fig. 4 is the utility model discloses flow direction schematic diagram when two-way circulation filter right side oil feed.
Detailed Description
The present invention will be further described with reference to the following embodiments and the accompanying drawings.
A two-way circulation filter comprises a shell 1, as shown in figures 1 and 2, a filter element 2 is installed in the shell 1, the top of the filter element 2 is connected and fixed with a filter head 3 at the upper end of the shell 1, flanges 6 are installed on the end faces of the left end and the right end of the filter head 3, oil ports 4 are arranged on the flanges 6, a slide valve 5 is installed between 2 oil ports 4 in the filter head 3, the slide valve 5 comprises a valve sleeve 51, two valve cavities 52 are symmetrically arranged in the valve sleeve 51, valve cores 53 are arranged in the valve cavities 52, 2 valve cores 53 are all sleeved on a floatable valve rod 54, a spring 55 sleeved on the valve rod 54 is arranged on one side of each valve core 53, one end of the valve rod 54 is of a fixed stop block structure, and a movable stop block 57 is installed at the other; the movable stop 57 and the fixed stop limit the compression spring 55 by means of a cotter pin 56, so that 2 spools 53 are compressed in the valve housing 51.
The valve rod 54 radially penetrates through the valve sleeve 51 and is fixed, and a movable gap is formed between the valve rod 54 and the valve sleeve 51.
The end surfaces of two ends of the valve sleeve 51 are flush with the end surface of the inner side of the flange 6, and when one end of the valve sleeve 51 moves to be in contact with the end surface of the inner side of the flange 6, the contact surface is a sealing structure.
A gap is formed between the valve rod 54 and the valve sleeve 51, the valve rod 54 can float in the valve sleeve 51, and after the contact surface between the valve core 53 and the valve sleeve 51 is abraded, the valve rod 54 floats in a certain range, so that automatic adjustment and compensation are performed, and the sealing reliability of the valve core 53 is improved.
The 2 springs 55 are arranged on one valve rod 54, and the pressing force of the springs 55 is automatically and uniformly distributed, so that the valve core 53 is prevented from being stressed unevenly.
The valve rod 54 is limited by the movable stop 57 and the split pin 56, and has the advantages of reliable looseness prevention, simple operation and easy realization.
When the filter is in a non-working state, the structure of the filter is as shown in fig. 1, and the valve core 53 is pressed on the valve sleeve 51 under the pressure of the spring 55; when the filter is in a working state, the structure of the filter is as shown in fig. 3 or fig. 4, a working medium enters from the oil port 4 on one side, the valve core 53 is pressed on and sealed by the valve sleeve 51 under the action of hydraulic pressure, the whole slide valve 5 moves towards the oil port 4 on the other side, the end surface of the valve sleeve 51 is pressed on and sealed by the end surface of the inner side of the flange 6, oil enters the filter element 2 from a gap between the end surface of the valve sleeve 51 on the other side and the end surface of the flange 6, pushes the valve core 53 open, and flows out.
Claims (3)
1. A bidirectional circulation filter comprises a shell (1) and is characterized in that a filter element (2) is installed in the shell (1), the top of the filter element (2) is connected and fixed with a filter head (3) at the upper end of the shell (1), flanges (6) are installed on the end faces of the left end and the right end of the filter head (3), oil ports (4) are arranged on the flanges (6), a slide valve (5) is arranged between 2 oil ports (4) in the filter head (3), the slide valve (5) comprises a valve sleeve (51), two valve cavities (52) are symmetrically arranged in the valve sleeve (51), valve cores (53) are arranged in the valve cavities (52), 2 valve cores (53) are all sleeved on a valve rod (54) capable of floating, springs (55) sleeved on the valve rod (54) are arranged on one side of each valve core (53), one end of the valve rod (54) is of a fixed stop block structure, and the other end of the valve rod (54) is provided with a movable stop block (57) in a limiting way through a cotter pin (56); the movable stop (57) and the fixed stop limit the compression spring (55) through a split pin (56), so that 2 valve cores (53) are compressed in the valve sleeve (51).
2. A bi-directional flow-through filter according to claim 1, wherein the valve stem (54) is fixed radially through the valve housing (51) with a clearance gap between the valve stem (54) and the valve housing (51).
3. A bi-directional flow-through filter according to claim 1, wherein the end faces of the valve housing (51) are flush with the inner end face of the flange (6), the contact faces being sealing structures when one end of the valve housing (51) is moved into contact with the inner end face of the flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920972202.0U CN210423842U (en) | 2019-06-26 | 2019-06-26 | Two-way circulation filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920972202.0U CN210423842U (en) | 2019-06-26 | 2019-06-26 | Two-way circulation filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423842U true CN210423842U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920972202.0U Active CN210423842U (en) | 2019-06-26 | 2019-06-26 | Two-way circulation filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713458A (en) * | 2021-09-01 | 2021-11-30 | 中国船舶重工集团公司第七0七研究所九江分部 | Thread anti-seize seawater filter |
-
2019
- 2019-06-26 CN CN201920972202.0U patent/CN210423842U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113713458A (en) * | 2021-09-01 | 2021-11-30 | 中国船舶重工集团公司第七0七研究所九江分部 | Thread anti-seize seawater filter |
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