CN214513056U

CN214513056U - Filter equipment convenient to installation in little space

Info

Publication number: CN214513056U
Application number: CN202023351427.6U
Authority: CN
Inventors: 张文斌; 关伟林; 杨继莲; 山珍
Original assignee: Xinxiang Pingyuan Industrial Filter Co ltd
Current assignee: Xinxiang Pingyuan Industrial Filter Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-29
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a filtering device convenient for small space installation, which comprises an upper shell and a lower shell in threaded connection with the upper shell, wherein an oil inlet channel and an oil outlet channel are arranged in the upper shell, a pipeline communicated with the oil outlet channel is protruded at the communication position of the oil outlet channel and the lower shell, a filter element is inserted in the lower shell and comprises an upper end cover, a lower end cover, a framework and a filter layer, the upper end cover is sleeved on the outer side wall of the pipeline, and a bypass valve extending into the framework is arranged on the lower end cover; the utility model discloses well filter core is at first the joint on the lower cover, then with lower cover threaded connection in the lower casing, will descend casing threaded connection in the upper casing at last, has improved current installation steps for the filter can be installed smoothly in less space.

Description

Filter equipment convenient to installation in little space

Technical Field

The utility model belongs to the technical field of the filter, a filter equipment convenient to little space installation is related to.

Background

At present, a common high-flow hydraulic filter consists of a base, a filter element and a lower shell, wherein the filter element is in a radial sealing structure and is inserted into a positioning shaft of the base, and the lower shell is screwed and installed in a threaded hole of the base to form a set of complete filter. The existing filter needs to leave a certain space when replacing the filter element, namely the sum of the heights of the filter element and the lower shell, but some filters have no bypass valve structure due to the particularity of the installation position under the condition of ensuring the inconvenient flow of the filter, and the installation space of the sum of the heights of the filter element and the lower shell is not satisfied, so that the filter element is easily damaged when the oil pressure is too large, and therefore the filter which is convenient for installing in a small space and has the bypass valve structure is designed to be very important.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a filter equipment convenient to little space installation, fine solution current filter can not install and damage the problem of filter core easily when the oil pressure is too big in the little space.

In order to realize the purpose, the utility model discloses a technical scheme as follows: the utility model provides a filter equipment convenient to installation in little space, includes upper housing and threaded connection in the lower casing of upper housing, oil feed passageway and the passageway of producing oil have been seted up in the upper housing, the passageway of producing oil is outstanding with casing intercommunication department down has the pipeline that communicates with the passageway of producing oil, it has the filter core to peg graft in the casing down, the filter core includes upper end cover, lower end cover, skeleton and filtering layer, the upper end cover cup joints on the lateral wall of pipeline, be provided with the bypass valve that stretches into in the skeleton on the lower end cover.

Further, the counter bore has all been seted up to oil feed passageway and pipeline and the one end of the internal portion intercommunication of inferior valve, all be provided with the non return subassembly in the counter bore, the non return subassembly includes first valve, first spring, sealing ring, the through-hole has been seted up on the first valve, and slides and set up in oil feed passageway or play oil passageway, the both ends of first spring butt respectively on the counter bore bottom surface and the first valve of oil feed passageway or play oil passageway, the lower extreme at oil feed passageway or play oil passageway is fixed to the sealing ring to the internal diameter of sealing ring is less than the external diameter of first valve.

Furthermore, a top rod extending out of the oil inlet channel is fixed on the bottom surface of the first valve in the oil inlet channel, and the lower end face of the top rod can be abutted to the upper end face of the upper end cover.

Furthermore, be connected through the auto-lock subassembly between lower extreme cover and the skeleton, the auto-lock subassembly is including fixing the joint of lower extreme cover up end and seting up the annular groove in the skeleton.

Further, the lower end cover comprises a large-diameter section and a small-diameter section, a through hole is formed in the middle of the lower end cover, a through hole communicated with the inside of the lower end cover is formed in the peripheral face of the small-diameter section of the lower end cover, the bypass valve comprises a valve body, a valve cover, a second valve and a second spring, the second valve is of a T-shaped structure, the valve body is fixed on the upper end face of the lower end cover, strip-shaped through holes are formed in the peripheral face of the valve body, the outer diameter of the large-diameter section of the second valve is larger than the inner diameter of the through hole, the small-diameter section of the second valve penetrates through the valve cover in a sliding mode, the valve cover is fixed on the upper end face of the valve body, the second spring is sleeved on the small-diameter section of the valve, and the two ends of the second spring abut against the end face of the large-diameter section of the valve and the lower end face of the valve cover respectively.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses well filter core is at first the joint on the lower cover, then with lower cover threaded connection in the lower casing, will descend casing threaded connection in the upper casing at last, has improved current installation steps for the filter can be installed smoothly in less space.

2. The utility model discloses the check subassembly that sets up in can prevent to change the filter core in oil feed passageway and the oil outlet channel hydraulic oil expose.

3. The utility model discloses in the utility model discloses the filter core can be damaged to the bypass valve that sets up in can avoiding the inside oil pressure of casing when too big, has further guaranteed the stability of filter core work.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 1. an upper housing; 2. a lower housing; 3. an oil inlet channel; 4. an oil outlet channel; 5. an upper end cover; 6. a lower end cover; 7. a filter element; 8. a bypass valve; 81. a valve body; 82. a valve cover; 83. a second shutter; 84. a second spring; 9. a check assembly; 91. a first shutter; 92. a first spring; 93. a seal ring; 10. a top rod; 11. A self-locking assembly; 111. a clamping head; 112. an annular groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, the technical solution adopted by the present invention is as follows: a filtering device convenient for small space installation comprises an upper shell 1 and a lower shell 2 in threaded connection with the upper shell 1, wherein the lower shell 2 extends into the outer wall of the upper shell 1 and is provided with a rubber ring groove, a sealing ring is arranged in the rubber ring groove and can ensure the sealing property between the upper shell 1 and the lower shell 2, an oil inlet, an oil outlet, an oil inlet channel 3 and an oil outlet channel 4 are arranged in the upper shell 1, the oil inlet is communicated with the oil inlet channel 3, the oil outlet is communicated with the oil outlet channel 4, a pipeline communicated with the oil outlet channel 4 is protruded at the communication position of the oil outlet channel 4 and the lower shell 2, the outer wall of the pipeline is provided with the rubber ring groove, a sealing ring is arranged in the rubber ring groove, a filter element 7 is inserted in the lower shell 2, and the filter element 7 comprises an upper end cover 5, a lower end cover 6, a framework and a filter layer, the lower end cover 6 is integrally formed by a disc of the large-diameter section and a connecting column of the small-diameter section, the filter element 7 is connected to the lower shell 2 through the connecting column of the lower end cover 6 in a threaded mode, the upper end cover 5 is sleeved on the outer side wall of the pipeline, and a bypass valve 8 stretching into the framework is arranged on the lower end cover 6.

The oil inlet channel 3 and the pipeline are both provided with a counter bore at one end communicated with the inside of the lower shell 2, a check assembly 9 is arranged in the counter bore, the check assembly 9 comprises a first valve 91, a first spring 92 and a sealing ring 93, the first valve 91 is composed of a cylinder and a bowl-shaped structure and is arranged in the oil inlet channel 3 or the oil outlet channel 4 in a sliding manner, the inner diameter of the sealing ring 93 is smaller than the outer diameter of the small-diameter section of the first valve 91, the inclined plane of the first valve 91 is provided with a through hole communicated with the inside of the first valve 91, in the oil inlet channel 3, the two ends of the first spring 92 are respectively abutted against the stepped surface of the oil inlet channel 3 and the bottom surface in the first valve 91, the sealing ring 93 is in threaded connection at the opening of the oil inlet channel 3, the bottom surface of the first valve 91 is welded with a mandril 10 extending out the oil inlet channel 3, when the filter element 7 is not installed, due to the elastic action of the first spring 92, the lower end face of the first valve 91 is in close contact with the sealing ring 93, the oil inlet channel 3 and the inside of the shell are in a closed state at the moment, oil in the oil inlet channel 3 cannot flow out of the first valve 91 and the sealing ring 93, an oil discharging step is omitted, system oil is saved, after the filter element 7 is installed, the upper end cover 5 extrudes the ejector rod 10, the ejector rod 10 drives the first valve 91 to move upwards, and the oil inlet channel 3 is communicated with the inside of the shell at the moment;

in oil outlet channel 4, the both ends of first spring 92 butt respectively on oil outlet channel 4's ladder face and first valve 91 up end, sealing ring 93 threaded connection is at oil outlet channel 4's opening part, when not leading to hydraulic oil, because first spring 92's elastic action for the lower terminal surface and the sealing ring 93 in close contact with of this first valve 91, oil outlet channel 4 is in the closed state with casing inside this moment, equally, fluid in the oil outlet channel 4 can not follow this first valve 91 and this sealing ring 93 and flow out, avoid fluid pollution system external environment, be convenient for change the filter core, when leading to hydraulic oil, the inside oil pressure of casing makes this first valve 91 overcome first spring 92 elastic action and upwards moves along oil outlet channel 4, oil outlet channel 4 and the inside intercommunication of casing this moment.

Lower extreme cover 6 and skeleton are connected through auto-lock subassembly 11 between, auto-lock subassembly 11 includes integrated into one piece at the joint 111 of 6 up ends of lower extreme cover and sets up the annular groove 112 at the skeleton inner wall, and filter core 7 is fixed on lower extreme cover 6 through auto-lock subassembly 11, is convenient for assemble filter core 7 and is convenient for install bypass valve 8.

The middle part of the lower end cover 6 is provided with a through hole, the upper end surface of the through hole is integrally formed with an annular bulge, the circumferential surface of a connecting column of the lower end cover 6 is provided with a through hole communicated with the inside of the connecting column, the bypass valve 8 comprises a valve body 81, a valve cover 82, a second valve 83 and a second spring 84, the second valve 83 is of a T-shaped structure, the valve body 81 is integrally formed on the upper end surface of the lower end cover 6, the circumferential surface of the valve body 81 is provided with a strip-shaped through hole, the outer diameter of the large-diameter section of the second valve 83 is larger than the inner diameter of the through hole, the small-diameter section of the second valve 83 is slidably penetrated on the valve cover 82, the valve cover 82 is fixed on the upper end surface of the valve body 81 in a threaded manner, the second spring 84 is sleeved on the small-diameter section of the second valve 83, and two ends of the second spring 84 are respectively abutted against the large-diameter section end surface of the second valve 83 and the lower end surface of the valve cover 82, due to the elastic action of the second spring 84, the large-diameter section of the second valve 83 is tightly attached to the upper end face of the annular protrusion, hydraulic oil cannot enter the framework of the filter element 7 from the bypass valve 8 in the state, when the oil pressure inside the shell exceeds a specified value, the hydraulic oil sequentially extrudes the second valve 83 from the through hole and the through hole formed in the lower end cover 6, the second valve 83 overcomes the elastic action of the second spring 84 to move upwards, then the hydraulic oil enters the framework from the bypass valve 8 and finally flows out of the shell through the oil outlet, and the bypass valve 8 can prevent the filter element 7 from being damaged due to the fact that the oil pressure inside the shell is too large.

The upper end cover 5 is provided with a process hole communicated with the oil outlet channel 4, the oil outlet channel 4 is convenient to process through the matching of the process hole, and the process hole is fixed with a sealing plug to prevent hydraulic oil from flowing out of the process hole.

When the filter core is used, the filter core 7 is firstly clamped on the lower end cover 6, then the lower end cover 6 is in threaded connection with the lower shell 2, then the upper end cover 5 is sleeved on the upper end face of the filter core 7, and finally the lower shell 2 is in threaded connection with the upper shell 1, so that the installation step is completed.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a filter equipment convenient to little space installation which characterized in that: including last casing and threaded connection in the lower casing of last casing, oil feed passageway and the passageway of producing oil have been seted up in the upper casing, the pipeline that produces oil passageway and lower casing intercommunication department salient have and produce oil passageway intercommunication, it has the filter core to peg graft in the casing down, the filter core includes upper end cover, lower end cover, skeleton and filtering layer, the upper end cover cup joints on the lateral wall of pipeline, be provided with the bypass valve that stretches into in the skeleton on the lower end cover.

2. A filter device for facilitating installation in a small space according to claim 1, wherein: the oil inlet passage and the pipeline are communicated with one end of the inner part of the lower shell, counter bores are formed in the counter bores, check assemblies are arranged in the counter bores and comprise first valves, first springs and sealing rings, through holes are formed in the first valves and are arranged in the oil inlet passage or the oil outlet passage in a sliding mode, two ends of each first spring abut against the bottom surface of the counter bore of the oil inlet passage or the oil outlet passage and the first valves respectively, the sealing rings are fixed at the lower ends of the oil inlet passage or the oil outlet passage, and the inner diameter of each sealing ring is smaller than the outer diameter of the first valves.

3. A filter device for facilitating installation in a small space according to claim 2, wherein: and an ejector rod extending out of the oil inlet channel is fixed on the bottom surface of the first valve in the oil inlet channel, and the lower end surface of the ejector rod can be abutted against the upper end surface of the upper end cover.

4. A filter device for facilitating installation in a small space according to claim 1, wherein: the lower end cover is connected with the framework through the self-locking assembly, and the self-locking assembly comprises a clamping joint fixed on the upper end face of the lower end cover and an annular groove formed in the framework.

5. A filter device for facilitating installation in a small space according to claim 1, wherein: the lower end cover comprises a large-diameter section and a small-diameter section, a through hole is formed in the middle of the lower end cover, through holes communicated with the inside of the lower end cover are formed in the periphery of the small-diameter section of the lower end cover, the bypass valve comprises a valve body, a valve cover, a second valve and a second spring, the second valve is of a T-shaped structure, the valve body is fixed on the upper end face of the lower end cover, strip-shaped through holes are formed in the periphery of the valve body, the outer diameter of the large-diameter section of the second valve is larger than the inner diameter of the through hole, the small-diameter section of the second valve penetrates through the valve cover in a sliding mode, the valve cover is fixed on the upper end face of the valve body, the second spring is sleeved on the small-diameter section of the valve, and the two ends of the second spring are respectively abutted to the lower end faces of the large-diameter section of the valve and the valve cover.