CN214913712U

CN214913712U - Bypass fluid filter

Info

Publication number: CN214913712U
Application number: CN202121052959.1U
Authority: CN
Inventors: 杜旭明; 富绪光; 白高阳; 刘琦; 张龙; 袁宇; 郝伟成
Original assignee: Xinxiang Aviation Industry Group Co ltd Shanghai Branch
Current assignee: Xinxiang Aviation Industry Group Co ltd Shanghai Branch
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-30
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a bypass fluid filter, include: the filter comprises a blocking cover assembly, a mandrel fixedly arranged between the blocking cover assemblies, an end cover assembly sleeved on the mandrel and a filter layer; the end cover assembly is arranged at two ends of the filter layer, the blocking cover assembly is arranged at two sides of the end cover assembly, which are deviated from the filter layer, one end of the end cover assembly is an oil inlet end, the oil inlet end is abutted against the blocking cover assembly, the other end of the end cover assembly is provided with an elastic piece, the elastic piece is sleeved on the core shaft, one end of the elastic piece is abutted against the blocking cover assembly, and the other end of the elastic piece is abutted against the end cover assembly. The filter realizes the bypass function of the filter, and has the advantages of simple structure, small volume and convenient replacement and maintenance.

Description

Bypass fluid filter

Technical Field

The utility model relates to a fluid filter technical field, concretely relates to bypass fluid filter.

Background

The fluid filter with the bypass function is generally a fluid filter with a low-pressure overflow valve connected in parallel, but the fluid filter connected in parallel with the low-pressure overflow valve is complex in structure and large in volume and space, and when the fluid filter is installed and used, the filter element and the low-pressure overflow valve with the bypass function need to be maintained separately, so that the fluid filter is not beneficial to rapid maintenance.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, it is an object of the present invention to provide a bypass fluid filter that is simple in structure, small in size, and easy to replace and maintain.

The specific technical scheme is as follows:

a bypass fluid filter consisting essentially of: the filter comprises a blocking cover component, a mandrel fixedly arranged between the blocking cover components, an end cover component sleeved on the mandrel and a filter layer;

the end cover assembly is arranged at two ends of the filter layer, the blocking cover assembly is arranged at two sides of the filter layer, one end of the end cover assembly is an oil inlet end, the oil inlet end is abutted to the blocking cover assembly to form a bypass structure, the other end of the end cover assembly is arranged in a manner of sliding coaxially to the blocking cover assembly, an elastic piece is arranged inside the end cover assembly, the elastic piece is sleeved on the core shaft, one end of the elastic piece is abutted to the blocking cover assembly, and the other end of the elastic piece is abutted to the end cover assembly.

In a by-pass fluid filter of the type described above, further characterized by said end cap assembly comprising a first end cap and a second end cap, said cap assembly comprising a first cap and a second cap;

the first end cover and the second end cover are sleeved on the mandrel, the first end cover and the second end cover are respectively arranged at two ends of the filter layer, and two ends of the filter layer are respectively clamped in the first end cover and the second end cover;

the first plug cover is arranged at one end of the first end cover, which is far away from the filter layer, and the first end cover is in sliding sleeve joint with the first plug cover;

the second blanking cover is arranged at one end, deviating from the filtering layer, of the second end cover, and the second end cover is abutted against the second blanking cover.

The bypass fluid filter is also characterized in that the second plug cover is provided with an oil inlet, the second end cover is provided with an oil inlet channel, and the oil inlet channel are sequentially communicated with the inner cavity of the filter layer to form an oil filtering channel;

first end cover periphery wall with leave the clearance between the internal perisporium of first blanking cover, form the oil extraction passageway that can supply the fluid circulation, be provided with the oil drain port on the first blanking cover, the oil drain port with the oil extraction passageway is linked together, be provided with the end cap in the oil drain port.

In the bypass fluid filter, the first end cover is provided with a protruding end extending into the inner cavity of the filter layer, the protruding end is provided with an accommodating groove with an opening facing the first plug cover, and the elastic piece is accommodated in the accommodating groove.

The bypass fluid filter is characterized in that a gasket is arranged in the accommodating groove, the gasket is sleeved on the mandrel, and two ends of the gasket are respectively abutted against the first blocking cover and the elastic piece.

In the bypass fluid filter, the bypass fluid filter further has a characteristic that the mandrel is sleeved on the inner wall of the containing groove at one side close to the second end cover, a first sealing element is arranged in the bottom wall of the containing groove, and the mandrel is sleeved with the first sealing element.

In one embodiment, the filter layer is a filter layer having a first end and a second end, and the first end is connected to the second end.

In the above-described bypass fluid filter, a second sealing member is provided to each of the first cap and the second cap outer peripheral wall.

In the above bypass fluid filter, the first blocking cover is provided with a first end and a second end, and the first end of the first blocking cover is connected with the second blocking cover through a fastener.

The bypass fluid filter is further characterized by further comprising a sliding shaft, wherein one end of the sliding shaft is fixedly arranged on the first blocking cover, and the other end of the sliding shaft is slidably inserted into the first end cover.

The positive effects of the technical scheme are as follows:

the utility model provides a pair of bypass fluid filter, the one end and the blanking cover subassembly contact setting of end cover subassembly oil feed to form the bypass structure, after the pressure value is opened to the bypass to the inside jam of filtering layer, can't resume the oil feed in the filtering layer again, then end cover subassembly and filtering layer slide to the one end of keeping away from the bypass structure together, and the separation of end cover subassembly and blanking cover subassembly realizes the bypass function, simple structure, small, the change of being convenient for is maintained moreover.

Drawings

Fig. 1 is a schematic structural diagram of a bypass fluid filter according to the present invention.

In the drawings: 1. a blanking cap assembly; 11. a first blanking cover; 111. a circular groove; 112. an oil discharge port; 113. a convex ring; 12. a second blanking cover; 121. an oil inlet; 2. a mandrel; 3. an end cap assembly; 31. a first end cap; 311. a protruding end; 3111. a containing groove; 32. a second end cap; 321. an oil inlet channel; 4. a filtering layer; 41. a filtration pore; 5. a bypass structure; 6. an elastic member; 7. an oil discharge passage; 81. a sliding shaft; 82. a fastener; 83. a plug; 91. a gasket; 92. a first seal member; 93. a second seal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a bypass fluid filter according to the present invention.

The utility model discloses a bypass fluid filter, this bypass fluid filter includes: the plug cover component 1, the mandrel 2 fixedly arranged between the plug cover components 1, and the end cover component 3 and the filter layer 4 sleeved on the mandrel 2.

The end cover assemblies 3 are arranged at two ends of the filter layer 4, and the blocking cover assemblies 1 are arranged at two sides of the end cover assemblies 3 deviating from the filter layer 4. The end cover assembly 3 has one end for oil inlet, and one end for oil outlet, and the other end for oil outlet, and the structure of oil inlet and oil outlet will be described in detail later.

Wherein, the oil feed end is connected with blanking cover subassembly 1 looks butt to form bypass structure 5, the end cover subassembly 3 other end and the coaxial setting of sliding of blanking cover subassembly 1.

Optionally, in this embodiment, the filter layer 4 is a cylindrical filter element, and both ends of the filter layer 4 are open. The circumferential surface of the filtering layer 4 is uniformly distributed with filtering holes 41. Specifically, two ends of the filter layer 4 are clamped in the end cover assembly 3.

Oil liquid gets into oil feed passageway 321 through oil inlet 121, then get into in the filtering layer 4, then flow to the filtering layer 4 outside through filtration pore 41 on the filtering layer 4, during normal filtration, the terminal surface of end cover subassembly 3 and the terminal surface in close contact with of blanking cap subassembly 1, realize the sealed of oil circuit, but after the inside jam of filtering layer 4 reached the bypass and opened the pressure value, can't continue the oil feed in the filtering layer 4 again, so end cover subassembly 3 and filtering layer 4 slide to the one end of keeping away from bypass structure 5 together, end cover subassembly 3 separates with blanking cap subassembly 1, realize the bypass function, moreover, the steam generator is simple in structure, small in size, be convenient for change the maintenance.

Optionally, in this embodiment, the closure assembly 1 comprises a first closure cap 11 and a second closure cap 12. Optionally, one end of the mandrel 2 is clamped in the first block cover 11, and the other end is fixedly connected with the second block cover 12 through a fastener 82. Optionally, in this embodiment, the mandrel 2 and the first blocking cover 11 are connected by a thread, but may be fixedly connected by other methods.

In particular, the mandrel 2 is arranged in a central position of the first and

second caps

11, 12.

The end cap assembly 3 includes a first end cap 31 and a second end cap 32.

The first end cap 31 and the second end cap 32 are all sleeved on the mandrel 2, the first end cap 31 and the second end cap 32 are respectively arranged at two ends of the filter layer 4, and two ends of the filter layer 4 are respectively clamped in the first end cap 31 and the second end cap 32.

First blanking cover 11 is located first end cover 31 deviates from the one end of filtering layer 4, and first end cover 31 cup joints with first blanking cover 11 slides.

Specifically, the end of the first block cover 11 facing the first end cover 31 is provided with an annular groove 111, and the end of the first end cover 31 extends into the annular groove 111.

Specifically, still include sliding shaft 81, sliding shaft 81 one end is fixed to be set up on first blanking cover 11, and the other end slides and stretches into in the first end cover 31, and then realizes that first end cover 31 can follow the gliding purpose of the axis axial of dabber 2, and sliding shaft 81 can play the guide effect at the slip in-process.

In this embodiment, when the filter normally works, oil enters the filter layer 4 through one end of the oil inlet of the end cover assembly 3, and then flows to the outside of the filter layer 4 through the filter holes 41 on the filter layer 4, so that the filter can be discharged.

Further, a gap is reserved between the outer peripheral wall of the first end cover 31 and the inner peripheral wall of the first blocking cover 11 to form an oil discharge channel 7 for oil to flow through, an oil discharge port 112 is arranged on the first blocking cover 11, the oil discharge port 112 is communicated with the oil discharge channel 7, a plug 83 is arranged in the oil discharge port 112, and the oil discharge channel 7 and the oil discharge port 112 are used for discharging residual oil out of the whole filter during maintenance.

The second block cover 12 is arranged at one end of the second end cover 32 departing from the filter layer 4, and the second end cover 32 is abutted against the second block cover 12. The second plug cover 12 is provided with an oil inlet 121, the second end cover 32 is provided with an oil inlet passage 321, and the oil inlet 121 and the oil inlet passage 321 are sequentially communicated with the inner cavity of the filter layer 4 to form an oil filtering passage. The oil inlet 121 is used for the oil feed, fluid gets into oil feed passageway 321 through oil inlet 121, then get into filtering layer 4 in, then flow to filtering layer 4 outside through filtration pore 41 on filtering layer 4, during normal filtration, the terminal surface of second end cover 32 and the terminal surface in close contact with of second blanking cap 12, realize the sealed of oil circuit, but after filtering layer 4 internal blocking up and reaching the bypass and open the pressure value, can't continue the oil feed again in filtering layer 4, then end cover subassembly 3 and filtering layer 4 slide to the one end of keeping away from bypass structure 5 together under the effect of oil hydraulic pressure, end cover subassembly 3 separates with blanking cap subassembly 1, realize the bypass function, moreover, the steam generator is simple in structure, small in size, be convenient for change and maintain.

Further, in order to realize the sealing between the end cover assembly 3 and the blocking cover assembly 1, an elastic member 6 is arranged inside the end cover assembly 3, the elastic member 6 is sleeved on the mandrel 2, one end of the elastic member abuts against the blocking cover assembly 1, and the other end of the elastic member abuts against the end cover assembly 3.

Optionally, the elastic member 6 can be a compression spring, initially, the elastic member 6 is compressed, an acting force towards one end of the bypass structure 5 is given to the end cover assembly 3, so that one end, close to the bypass structure 5, of the end cover assembly 3 is in close contact with the cap blocking assembly 1, sealing of an oil path is realized, resetting of the end cover assembly 3 and the filter layer 4 can also be realized through setting of the elastic member 6, when bypassing is not needed, the elastic member 6 is restored to be free from action of oil hydraulic pressure, an acting force towards one end of the bypass structure 5 is given to the end cover assembly 3, one end, close to the bypass structure 5, of the end cover assembly 3 is in close contact with the cap blocking assembly 1, and resetting is realized.

Specifically, a protruding end 311 extending into the inner cavity of the filter layer 4 and protruding toward one end of the second end cap 32 is disposed in the first end cap 31, the protruding end 311 is provided with a receiving groove 3111 with an opening facing the first cover 11, and the elastic member 6 is received in the receiving groove 3111.

The first cover 11 is provided with a protruding ring 113, a part of which extends into the containing groove 3111, the protruding ring 113 is arranged around the outer circumferential wall of the mandrel 2, in this embodiment, the outer circumferential wall of the first cover 11 and the circumferential wall of the protruding ring 113 away from the mandrel 2 form a circular groove 111. One end of the elastic member 6 abuts against the end surface of the protruding ring 113, and the other end abuts against the bottom wall of the accommodating groove 3111.

Further, a gasket 91 is arranged in the accommodating groove 3111, the mandrel 2 is sleeved with the gasket 91, and two ends of the gasket 91 respectively abut against the first blocking cover 11 and the elastic member 6. Specifically, one end of the spacer 91 abuts against the end surface of the protruding ring 113, and the other end abuts against the elastic member 6. The spacer 91 is mainly used to support the elastic member 6 such as a spring, and the bypass pressure can be adjusted by adjusting the thickness of the spacer 91 if necessary.

Further, the core shaft 2 is sleeved on the inner wall of the containing groove 3111 near one side of the second end cap 32, a first sealing element 92 is disposed in the bottom wall of the containing groove 3111, and the core shaft 2 is sleeved on the first sealing element 92.

Further, the bypass fluid filter in this embodiment is integrally mounted on the fuel pump, and in order to seal between the outside of the filter layer 4 and the fuel pump, second sealing members 93 are provided on the outer peripheral walls of the first and

second caps

11 and 12.

Optionally, the gasket 91, the first sealing element 92 and the second sealing element 93 in this embodiment may be sealing rings to achieve a sealing effect.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A bypass fluid filter, comprising: the filter comprises a blocking cover component, a mandrel fixedly arranged between the blocking cover components, an end cover component sleeved on the mandrel and a filter layer;

2. The bypass fluid filter of claim 1, wherein the end cap assembly comprises a first end cap and a second end cap, the cap assembly comprising a first cap and a second cap;

3. The bypass fluid filter of claim 2, wherein the second blanking cover is provided with an oil inlet, the second end cover is provided with an oil inlet channel, and the oil inlet channel are sequentially communicated with the inner cavity of the filter layer to form an oil filter channel;

4. The bypass fluid filter according to claim 3, wherein a protruding end is disposed within the first end cap and extends into the interior cavity of the filter layer, the protruding end having a receiving recess open toward the first plug, the resilient member being received within the receiving recess.

5. The bypass fluid filter according to claim 4, wherein a gasket is disposed in the receiving groove, the gasket is sleeved on the spindle, and two ends of the gasket respectively abut against the first blocking cover and the elastic member.

6. The bypass fluid filter according to claim 5, wherein the mandrel is sleeved with an inner wall of the receiving groove on a side thereof adjacent to the second end cap, and a first sealing member is disposed in a bottom wall of the receiving groove and sleeved on the mandrel.

7. The bypass fluid filter according to any one of claims 1 to 6, wherein both ends of the filter layer are captured within the end cap assembly.

8. The bypass fluid filter according to any one of claims 2 to 6, wherein the first and second closure peripheral walls are each provided with a second seal.

9. The bypass fluid filter according to any one of claims 2 to 6, wherein the mandrel is clamped at one end in the first closure and at the other end is fixedly connected to the second closure by a fastener.

10. The bypass fluid filter according to any one of claims 2-6, further comprising a sliding shaft having one end fixedly disposed on the first cap and another end slidably extending into the first end cap.