CN206234204U - A kind of return filter with by-passing filter function - Google Patents
A kind of return filter with by-passing filter function Download PDFInfo
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- CN206234204U CN206234204U CN201621317313.0U CN201621317313U CN206234204U CN 206234204 U CN206234204 U CN 206234204U CN 201621317313 U CN201621317313 U CN 201621317313U CN 206234204 U CN206234204 U CN 206234204U
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- filter
- filter cylinder
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- layer filter
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Abstract
The utility model is related to return filter, specifically a kind of return filter with by-passing filter function.The utility model causes filtered fluid to be directly entered fuel tank in disabler, produces air pocket in the fluid that causes in oil return in fuel tank to solve the problems, such as existing return filter.A kind of return filter with by-passing filter function, including outer layer filter cylinder, internal layer filter cylinder, filter cover, tubular filter screen, tubular armature, stretching screw, locking nut；Wherein, the top and bottom of outer layer filter cylinder are equipped with opening；The lateral surface of outer layer filter cylinder is respectively equipped with annular boss and four outer layer gussets；Four outer layer gussets around the axis equidistant arrangement of outer layer filter cylinder, and with the upper surface of annular boss fix by four lower surfaces of outer layer gusset；The top and bottom of internal layer filter cylinder are equipped with opening；Internal layer filter cylinder is arranged in the inner chamber of outer layer filter cylinder, and the axis of internal layer filter cylinder overlaps with the axis of outer layer filter cylinder.The utility model is applied to hydraulic system.
Description
Technical field
The utility model is related to return filter, specifically a kind of return filter with by-passing filter function.
Background technology
Return filter is widely used in hydraulic system.Practice have shown that, existing return filter is due to self structure
Limited, the following problem of generally existing：First, the filter core of return filter can be blocked gradually in use, cause oil return
Pressure difference between the entrance and exit of filter gradually increases.Once filter element replacing is not in time, the entrance and exit of return filter
Between pressure difference will trigger by-passing valve, thus cause the disabler of return filter, so as to cause filtered fluid
It is directly entered fuel tank and causes secondary pollution, and then causes hydraulic system failure.Second, the oil after being filtered through return filter
Liquid can form vertical impact when fuel tank is entered to the liquid level in fuel tank, thus cause air to be mixed into the fluid in fuel tank, from
And cause to produce air pocket in the fluid in fuel tank, and then cause hydraulic system failure.Based on this, it is necessary to which invention is a kind of complete
New return filter, causes filtered fluid to be directly entered oil to solve existing return filter in disabler
The problem of air pocket is produced in case, the fluid for causing in oil return in fuel tank.
The content of the invention
The utility model causes filtered fluid directly to enter to solve existing return filter in disabler
The problem of air pocket is produced in the fluid for enter fuel tank, causing in oil return in fuel tank, there is provided a kind of returning with by-passing filter function
Oil strainer.
The utility model adopts the following technical scheme that realization：
A kind of return filter with by-passing filter function, including outer layer filter cylinder, internal layer filter cylinder, filter cover, tubular filter screen, pipe
Shape skeleton, stretching screw, locking nut；
Wherein, the top and bottom of outer layer filter cylinder are equipped with opening；The lateral surface of outer layer filter cylinder is respectively equipped with annular boss
With four outer layer gussets；Four outer layer gussets around outer layer filter cylinder axis equidistant arrangement, and four lower surfaces of outer layer gusset
Upper surface with annular boss is fixed；The top and bottom of internal layer filter cylinder are equipped with opening；Internal layer filter cylinder is arranged in outer metafiltration
The inner chamber of cylinder, and the axis of internal layer filter cylinder overlaps with the axis of outer layer filter cylinder；The lateral surface of internal layer filter cylinder is respectively equipped with four
Layer gusset；, around the axis equidistant arrangement of internal layer filter cylinder, and four outer faces of internal layer gusset are and outer layer for four internal layer gussets
The medial surface of filter cylinder is fixed；Filter cover is located at the lower section of outer layer filter cylinder, and the axis of filter cover overlaps with the axis of outer layer filter cylinder；Filter cover
Middle thereof offer centre bore；
The upper surface of tubular filter screen is fixed with the lower surface edge seal of annular boss；The lower surface of tubular filter screen and filter cover
Upper surface edge seal fix；The axis of tubular filter screen overlaps with the axis of outer layer filter cylinder；Tubular armature is sheathed on tubular filter
The lateral surface of net；The upper surface of tubular armature is fixed with the lower surface edge seal of annular boss；The lower surface of tubular armature with
The upper surface edge seal of filter cover is fixed；The top of stretching screw is arranged in the inner chamber of internal layer filter cylinder, and stretching screw upper end
Extend the outside of internal layer filter cylinder；The bottom of stretching screw is arranged in centre bore, and the lower end of stretching screw extends centre bore
It is outside；The number of locking nut is two；Two locking nuts are screwed in the upper and lower part of stretching screw respectively, and two locks
Tight nut presses the upper surface of internal layer filter cylinder and the lower surface of filter cover respectively.
During work, the open exit seal with existing return filter in upper end of outer layer filter cylinder is connected.Specific work process
It is as follows：Fluid after being filtered through existing return filter enters the inner chamber of tubular filter screen through the inner chamber of outer layer filter cylinder, then through pipe
Shape filter screen carries out secondary filter.Fluid after secondary filter carries out horizontal proliferation through tubular armature, then with fuel tank in fluid
Mixed, be achieved in the filtering of fluid.In the process, even if the disabler of existing return filter, filtered
Fluid also can once be filtered through tubular filter screen, thus avoid filtered fluid and be directly entered fuel tank and cause secondary
Pollution, so as to avoid hydraulic system failure.Further, since the fluid after filtering is to carry out horizontal proliferation through tubular armature
Mixed with the fluid in fuel tank afterwards, it is to avoid fluid forms to the liquid level in fuel tank vertical impact, thus avoid air
Be mixed into the fluid in fuel tank, produce in the fluid in fuel tank air pocket so as to avoid, so avoid hydraulic system occur therefore
Barrier.
Further, the upper surface edge of outer layer filter cylinder is provided with annular recess；O-ring seal is embedded with annular recess.
During work, O-ring seal ensure that the open sealing effectiveness and outlet of existing return filter between in the upper end of outer layer filter cylinder
More preferably.
The utility model is rational in infrastructure, design is ingenious, and efficiently solve existing return filter causes in disabler
The problem of air pocket is produced in the fluid that filtered fluid is directly entered fuel tank, cause in oil return in fuel tank, it is adaptable to liquid
Pressure system.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional views of Fig. 1.
In figure：1- outer layer filter cylinders, 2- internal layer filter cylinders, 3- filter covers, 4- tubular filter screens, 5- tubular armatures, 6- stretching screws, 7-
Locking nut, 8- annular boss, 9- outer layer gussets, 10- internal layer gussets, 11-O type sealing rings, 12- flat shims.
Specific embodiment
A kind of return filter with by-passing filter function, including outer layer filter cylinder 1, internal layer filter cylinder 2, filter cover 3, tubular filter screen
4th, tubular armature 5, stretching screw 6, locking nut 7；
Wherein, the top and bottom of outer layer filter cylinder 1 are equipped with opening；It is convex that the lateral surface of outer layer filter cylinder 1 is respectively equipped with ring-type
Platform 8 and four outer layer gussets 9；Four outer layer gussets 9 around outer layer filter cylinder 1 axis equidistant arrangement, and four outer layer gussets 9
Upper surface of the lower surface with annular boss 8 is fixed；The top and bottom of internal layer filter cylinder 2 are equipped with opening；Internal layer filter cylinder 2 wears
Axis in the inner chamber of outer layer filter cylinder 1, and internal layer filter cylinder 2 overlaps with the axis of outer layer filter cylinder 1；The lateral surface of internal layer filter cylinder 2 point
Four internal layer gussets 10 are not provided with；Four internal layer gussets 10 around internal layer filter cylinder 2 axis equidistant arrangement, and four internal layer gussets
Medial surface of 10 outer face with outer layer filter cylinder 1 is fixed；Filter cover 3 be located at outer layer filter cylinder 1 lower section, and the axis of filter cover 3 with
The axis of outer layer filter cylinder 1 overlaps；The middle thereof of filter cover 3 offers centre bore；
The upper surface of tubular filter screen 4 is fixed with the lower surface edge seal of annular boss 8；The lower surface of tubular filter screen 4 with
The upper surface edge seal of filter cover 3 is fixed；The axis of tubular filter screen 4 overlaps with the axis of outer layer filter cylinder 1；Tubular armature 5 is arranged
In the lateral surface of tubular filter screen 4；The upper surface of tubular armature 5 is fixed with the lower surface edge seal of annular boss 8；Tubular armature
5 lower surface is fixed with the upper surface edge seal of filter cover 3；The top of stretching screw 6 is arranged in the inner chamber of internal layer filter cylinder 2, and
The upper end of stretching screw 6 extends the outside of internal layer filter cylinder 2；The bottom of stretching screw 6 is arranged in centre bore, and stretching screw 6
Lower end extend the outside of centre bore；The number of locking nut 7 is two；Two locking nuts 7 are screwed in stretching screw 6 respectively
Upper and lower part, and two locking nuts 7 press the upper surface of internal layer filter cylinder 2 and the lower surface of filter cover 3 respectively.
The upper surface edge of outer layer filter cylinder 1 is provided with annular recess；O-ring seal 11 is embedded with annular recess.
During specific implementation, also including two flat shims 12；Two flat shims 12 be sheathed on respectively stretching screw 6 top and
Bottom, and two locking nuts 7 press the upper surface of internal layer filter cylinder 2 and the lower surface of filter cover 3 by two flat shims 12 respectively.
Claims (3)
1. a kind of return filter with by-passing filter function, it is characterised in that：Including outer layer filter cylinder（1）, internal layer filter cylinder（2）、
Filter cover（3）, tubular filter screen（4）, tubular armature（5）, stretching screw（6）, locking nut（7）；
Wherein, outer layer filter cylinder（1）Top and bottom be equipped with opening；Outer layer filter cylinder（1）Lateral surface to be respectively equipped with ring-type convex
Platform（8）With four outer layer gussets（9）；Four outer layer gussets（9）Around outer layer filter cylinder（1）Axis equidistant arrangement, and four outer
Layer gusset（9）Lower surface and annular boss（8）Upper surface fix；Internal layer filter cylinder（2）Top and bottom be equipped with it is spacious
Mouthful；Internal layer filter cylinder（2）It is arranged in outer layer filter cylinder（1）Inner chamber, and internal layer filter cylinder（2）Axis and outer layer filter cylinder（1）Axis
Overlap；Internal layer filter cylinder（2）Lateral surface be respectively equipped with four internal layer gussets（10）；Four internal layer gussets（10）Around internal layer filter cylinder
（2）Axis equidistant arrangement, and four internal layer gussets（10）Outer face with outer layer filter cylinder（1）Medial surface fix；Filter cover
（3）Positioned at outer layer filter cylinder（1）Lower section, and filter cover（3）Axis and outer layer filter cylinder（1）Axis overlap；Filter cover（3）Center
Insertion offers centre bore；
Tubular filter screen（4）Upper surface and annular boss（8）Lower surface edge seal fix；Tubular filter screen（4）Lower surface
With filter cover（3）Upper surface edge seal fix；Tubular filter screen（4）Axis and outer layer filter cylinder（1）Axis overlap；Tubular bone
Frame（5）It is sheathed on tubular filter screen（4）Lateral surface；Tubular armature（5）Upper surface and annular boss（8）Lower surface edge it is close
Sealing is determined；Tubular armature（5）Lower surface and filter cover（3）Upper surface edge seal fix；Stretching screw（6）Top wear
In internal layer filter cylinder（2）Inner chamber, and stretching screw（6）Upper end extend internal layer filter cylinder（2）Outside；Stretching screw（6）Under
Portion is arranged in centre bore, and stretching screw（6）Lower end extend the outside of centre bore；Locking nut（7）Number be two；
Two locking nuts（7）Screw respectively in stretching screw（6）Upper and lower part, and two locking nuts（7）In pressing respectively
Metafiltration cylinder（2）Upper surface and filter cover（3）Lower surface.
2. a kind of return filter with by-passing filter function according to claim 1, it is characterised in that：Outer layer filter cylinder
（1）Upper surface edge be provided with annular recess；O-ring seal is embedded with annular recess（11）.
3. a kind of return filter with by-passing filter function according to claim 1 and 2, it is characterised in that：Also include
Two flat shims（12）；Two flat shims（12）Stretching screw is sheathed on respectively（6）Upper and lower part, and two locking nuts
（7）Pass through two flat shims respectively（12）Press internal layer filter cylinder（2）Upper surface and filter cover（3）Lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621317313.0U CN206234204U (en) | 2016-12-03 | 2016-12-03 | A kind of return filter with by-passing filter function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621317313.0U CN206234204U (en) | 2016-12-03 | 2016-12-03 | A kind of return filter with by-passing filter function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234204U true CN206234204U (en) | 2017-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621317313.0U Active CN206234204U (en) | 2016-12-03 | 2016-12-03 | A kind of return filter with by-passing filter function |
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| CN (1) | CN206234204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715039A (en) * | 2020-07-21 | 2020-09-29 | 株洲嘉盛柏联轨道交通设备有限公司 | Adsorption type double-tower air dryer |
-
2016
- 2016-12-03 CN CN201621317313.0U patent/CN206234204U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111715039A (en) * | 2020-07-21 | 2020-09-29 | 株洲嘉盛柏联轨道交通设备有限公司 | Adsorption type double-tower air dryer |
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