CN212868103U - Hydraulic filter element with valve type end cover clamping structure - Google Patents
Hydraulic filter element with valve type end cover clamping structure Download PDFInfo
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- CN212868103U CN212868103U CN202021485047.9U CN202021485047U CN212868103U CN 212868103 U CN212868103 U CN 212868103U CN 202021485047 U CN202021485047 U CN 202021485047U CN 212868103 U CN212868103 U CN 212868103U
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- end cover
- tubular body
- pressure release
- filter element
- clamping structure
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Abstract
A hydraulic filter element with a valve type end cover clamping structure comprises an upper end cover, a central pipe, a lower end cover, a filter element, a pressure relief spring and a plug; the upper end of upper end cover and center tube is connected through first joint structure, is equipped with the oil-out that communicates with the center tube on the upper end cover, and the lower extreme of lower end cover and center tube is connected through second joint structure, and the inboard of lower end cover is equipped with the cavity, is equipped with the pressure release hole with the cavity intercommunication on the lower end cover, and pressure release spring and end cap are installed in the cavity of lower end cover, and pressure release spring's both ends support respectively on the lower extreme and the end cap of center tube, and the pressure release hole on end cap and the lower end cover is mutually supported. The clamping structure ensures that the upper end cover and the lower end cover are not easy to fall off when the glue amount is small, and the whole hydraulic filter element is clamped and assembled, so that the efficiency is high; the lower end cover is integrated with a pressure release valve, when the external pressure of the hydraulic filter element reaches a designed pressure value, the plug of the pressure release valve is pushed open, and pressure release can be carried out by utilizing the gap between the plug and the pressure release hole in the lower end cover.
Description
Technical Field
The utility model relates to a hydraulic pressure filter core, in particular to take hydraulic pressure filter core of valve formula end cover joint structure.
Background
At present, most of the hydraulic filter elements on the market are as follows:
1. the two end faces are only bonded and fixed by glue, and the filter element is easy to fall off and separate due to overlarge pressure in the using process.
2. The pressure relief valve function is not provided, the pipeline is not smooth or even blocked under certain conditions, and certain potential safety hazards exist.
3. The pressure release valve main body needs to be assembled through complex welding and other processes, so that the equipment investment cost is high, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, a take hydraulic pressure filter core of valve formula end cover joint structure is provided.
The purpose of the utility model can be realized by the following technical scheme: a hydraulic filter element with a valve type end cover clamping structure comprises an upper end cover, a central pipe, a lower end cover, a filter element, a pressure relief spring and a plug; the upper end of upper end cover and center tube is connected through first joint structure, is equipped with the oil-out with the center tube intercommunication on the upper end cover, the lower extreme of lower end cover and center tube is connected through second joint structure, and the inboard of lower end cover is equipped with the cavity, is equipped with the pressure release hole with the cavity intercommunication on the lower end cover, pressure release spring and end cap are installed in the cavity of lower end cover, and the both ends of pressure release spring support respectively on the lower extreme and the end cap of center tube, the end cap is mutually supported with the pressure release hole on the lower end cover.
Furthermore, a first tubular body is arranged in the middle of the upper end cover, the first tubular body and the upper end cover are coaxial and protrude out of the inner side end face and the outer side end face of the upper end cover, and an oil outlet is formed in the first tubular body.
Furthermore, the first clamping structure comprises a first clamping groove arranged on the side wall of the inner side end of the first tubular body of the upper end cover and a first clamping buckle arranged on the side wall of the upper end of the central tube.
Furthermore, a second tubular body is arranged in the middle of the lower end cover, the second tubular body and the lower end cover are coaxial and protrude out of the end face of the inner side of the lower end cover, a cavity of the lower end cover is arranged inside the second tubular body, and the pressure relief spring and the plug are arranged in the second tubular body.
Further, the diameter of the pressure relief hole in the lower end cap is smaller than the inner diameter of the second tubular body.
Furthermore, the second clamping structure comprises a second clamping groove arranged on the side wall of the inner side end of the second tubular body of the lower end cover and a second clamping buckle arranged on the side wall of the lower end of the central tube.
Compared with the prior art, the beneficial effects of the utility model are that: the upper end cover and the lower end cover are respectively connected with the upper end and the lower end of the central tube through the clamping structure, so that the hydraulic filter element can be further fixed through the clamping structure besides glue water fixation during assembly, the upper end cover and the lower end cover are not easy to fall off when the glue water amount is small, the whole hydraulic filter element adopts a clamping mode, the assembly process is simple, and the efficiency is high; the lower end cover is integrated with the pressure release valve, the function of the pressure release valve is realized through the matching of the inner side structure of the lower end cover, the pressure release spring, the plug and the lower end of the central pipe, when the external pressure of the hydraulic filter element reaches the designed pressure value, the plug of the pressure release valve is ejected, the pressure release can be carried out by utilizing the gap of the pressure release hole in the plug and the lower end cover, and the normal work of an oil circuit where the hydraulic filter element is located is ensured.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention.
Fig. 2 is a schematic structural diagram of the pressure release valve in a closed state.
Fig. 3 is a schematic structural diagram of the relief valve in an open state.
The parts in the figures are numbered as follows:
1 upper end cap
101 first tubular body
102 oil outlet
103 first card slot
2 center tube
201 first buckle
202 second buckle
3 lower end cap
301 second tubular body
302 pressure relief vent
303 second card slot
4 Filter element
5 pressure relief spring
6, a plug.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings to make it clear to those skilled in the art how to practice the invention. While the invention has been described in connection with its preferred embodiments, these embodiments are intended to be illustrative, and not to limit the scope of the invention.
Referring to fig. 1, a hydraulic filter element with a valve type end cover clamping structure comprises an upper end cover 1, a central pipe 2, a lower end cover 3, a filter element 4, a pressure relief spring 5 and a plug 6.
The oil outlet structure is characterized in that a first tubular body 101 is arranged in the middle of the upper end cover 1, the first tubular body 101 and the upper end cover 1 are coaxial and protrude out of the end faces of the inner side and the outer side of the upper end cover 1, and oil outlets 102 communicated with the inner side and the outer side of the upper end cover 1 are arranged in the first tubular body 101.
The upper end cover 1 is connected with the upper end of the central tube 2 through a first clamping structure, in this embodiment, the first clamping structure includes a first clamping groove 103 disposed on the side wall of the inner end of the first tubular body 101 and a first clamping buckle 201 disposed on the side wall of the upper end of the central tube 2. It will be appreciated by those skilled in the art that the positions of the first card slot 103 and the first catch 201 may be interchanged.
Be equipped with the relief valve on the lower end cover 3, its concrete structure is: a second tubular body 301 serving as a main body of the pressure release valve is arranged in the middle of the lower end cover 3, the second tubular body 301 is coaxial with the lower end cover 3 and protrudes out of the end face of the inner side of the lower end cover 3, the inside of the second tubular body 301 serves as a cavity of the pressure release valve, a pressure release hole 302 communicated with the inside of the second tubular body 301 is arranged in the center of the lower end cover 3, and the diameter of the pressure release hole 302 is smaller than the inner diameter of the second tubular body 301; a pressure relief spring 5 and a plug 6 are arranged in the second tubular body 301, the upper end and the lower end of the pressure relief spring 5 respectively support against the lower end of the central tube 2 and the plug 6, and the plug 6 is matched with the pressure relief hole 302.
The lower end cover 3 and the lower end of the central tube 2 are connected through a second clamping structure, in this embodiment, the second clamping structure includes a second clamping groove 303 disposed on an inner side end side wall of a second tubular body 301 of the lower end cover 3 and a second buckle 202 disposed on a lower side wall of the central tube 2. It will be appreciated by those skilled in the art that the positions of second card slot 303 and second catch 202 may be interchanged.
During assembly, the plug 6 is first placed in the second tubular body 301 of the lower end cap 3. Then, the pressure relief spring 5 is placed in the second tubular body 301 of the lower end cap 3, so that the lower end of the pressure relief spring 5 abuts against the plug 6. Then, the lower end of the center tube 2 is abutted against the upper end of the pressure relief spring 5, and the lower end of the center tube 2 is clamped into the second clamping groove 303 on the second tubular body 301 of the lower end cover 3 through the second buckle 202 to be locked and fixed, so that a pressure relief valve structure is formed. The filter element 4 is then fitted on the central tube 2. Finally, the first locking groove 103 on the first tubular body 101 of the upper end cap 1 is engaged with the first buckle 201 on the upper end of the center tube 2 for locking and fixing. So the whole hydraulic filter element is assembled.
During normal operation, referring to fig. 2, the plug 6 props against the pressure relief hole 302 on the lower end cover 3 under the elastic restoring force effect of the pressure relief spring 5, a sealing structure is formed between the plug 6 and the pressure relief hole 302, and liquid penetrates through the filter element 4 and flows out through the inner cavity of the central tube 2 and the oil outlet 102 on the upper end cover 1 to form effective circulation.
When an abnormal condition occurs, referring to fig. 3, a pressure difference is formed between the inside and the outside of the hydraulic filter element at this time, the internal pressure is smaller than the external pressure, when the difference value reaches a preset value, the plug 6 is pushed upwards, and moves upwards in the second tubular body 301 of the lower end cover 3, so that a gap is formed between the plug 6 and the pressure relief hole 302, and the pressure can be relieved to ensure that the pressure inside and outside the hydraulic filter element reaches balance.
It should be noted that many variations and modifications of the embodiments of the present invention are possible, which are fully described, and are not limited to the specific examples of the above embodiments. The above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.
Claims (6)
1. A hydraulic filter element with a valve type end cover clamping structure is characterized by comprising an upper end cover, a central pipe, a lower end cover, a filter element, a pressure relief spring and a plug; the upper end of upper end cover and center tube is connected through first joint structure, is equipped with the oil-out with the center tube intercommunication on the upper end cover, the lower extreme of lower end cover and center tube is connected through second joint structure, and the inboard of lower end cover is equipped with the cavity, is equipped with the pressure release hole with the cavity intercommunication on the lower end cover, pressure release spring and end cap are installed in the cavity of lower end cover, and the both ends of pressure release spring support respectively on the lower extreme and the end cap of center tube, the end cap is mutually supported with the pressure release hole on the lower end cover.
2. The hydraulic filter element with the valve type end cover clamping structure according to claim 1, wherein a first tubular body is arranged in the middle of the upper end cover, the first tubular body and the upper end cover are coaxial and protrude out of the inner side end face and the outer side end face of the upper end cover, and an oil outlet is formed in the first tubular body.
3. The hydraulic filter cartridge with the valve type end cover clamping structure according to claim 2, wherein the first clamping structure comprises a first clamping groove formed in the side wall of the inner side end of the first tubular body of the upper end cover and a first clamping buckle formed in the side wall of the upper end of the central tube.
4. The hydraulic filter element with the valve type end cover clamping structure according to claim 1, wherein a second tubular body is arranged on the lower end cover in the middle, the second tubular body and the lower end cover are coaxial and protrude out of the inner side end face of the lower end cover, a cavity of the lower end cover is arranged inside the second tubular body, and the pressure relief spring and the plug are arranged in the second tubular body.
5. The hydraulic filter cartridge with the valve type end cover clamping structure according to claim 4, wherein the diameter of the pressure relief hole in the lower end cover is smaller than the inner diameter of the second tubular body.
6. The hydraulic filter cartridge with the valve type end cover clamping structure according to claim 4 or 5, wherein the second clamping structure comprises a second clamping groove arranged on the side wall of the inner end of the second tubular body of the lower end cover and a second clamping buckle arranged on the side wall of the lower end of the central tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485047.9U CN212868103U (en) | 2020-07-24 | 2020-07-24 | Hydraulic filter element with valve type end cover clamping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021485047.9U CN212868103U (en) | 2020-07-24 | 2020-07-24 | Hydraulic filter element with valve type end cover clamping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868103U true CN212868103U (en) | 2021-04-02 |
Family
ID=75216848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021485047.9U Active CN212868103U (en) | 2020-07-24 | 2020-07-24 | Hydraulic filter element with valve type end cover clamping structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212868103U (en) |
-
2020
- 2020-07-24 CN CN202021485047.9U patent/CN212868103U/en active Active
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