CN214809008U

CN214809008U - Parallel filter

Info

Publication number: CN214809008U
Application number: CN202023232870.1U
Authority: CN
Inventors: 高娟; 张敏; 裴佳佳
Original assignee: Xinxiang Pingfei Hydraulic Co ltd
Current assignee: Xinxiang Pingfei Hydraulic Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-23
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a parallelly connected filter, which comprises an upper housing, one side of going up the casing is provided with into oil pipe, the opposite side of going up the casing is provided with out oil pipe, and go out oil pipe and advance oil pipe and be parallel distribution, advance one side outer wall that is close to out oil pipe of oil pipe and seted up the through-hole, one side outer wall fixedly connected with bypass valve that goes out oil pipe, the inner wall threaded connection of bypass valve has the plug, the sealing washer three has been cup jointed between the outer wall of plug and the inner wall of bypass valve, go out the inside of oil pipe and seted up flutedly, the inside fixedly connected with spring of recess, the one end fixedly connected with valve of recess is kept away from to the spring, and the outer wall laminating of valve in the through-hole. The utility model discloses a plug passes through the extrusion spring, makes the valve shutoff through-hole, avoids advancing the fluid entering of oil pipe and goes out oil pipe, and under the oil pressure when advancing in the oil pipe was too high, the valve was opened under the pressure effect, and fluid flows in oil pipe from advancing oil pipe through the through-hole to avoid the resistance in the system to rise.

Description

Parallel filter

Technical Field

The utility model belongs to the technical field of the hydraulic control component, especially, relate to a parallelly connected filter.

Background

The hydraulic system is an important element for filtering out pollutants such as solid particles, colloidal substances and the like inherent or newly generated in the hydraulic system so as to keep the working medium of the system clean and protect other elements in the system from normal operation. The filter consists of a cylinder body, a filter core, a pollution discharge part, a signal transmitter and the like. After the working medium in the system passes through the filter, impurities are blocked, when the filter needs to be cleaned or replaced, the filter element needs to be detached, and the filter element is installed again after treatment, so that the system is very convenient to use and maintain.

Disclosure of Invention

The utility model aims at providing a parallelly connected filter that solves the filter of the great flow of installation in limited installation space.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a parallel filter comprises an upper shell, wherein an oil inlet pipe is arranged at one side of the upper shell, an oil outlet pipe is arranged at the other side of the upper shell, the oil outlet pipe and the oil inlet pipe are distributed in parallel, the outer wall of one side of the oil inlet pipe close to the oil outlet pipe is provided with a through hole, the outer wall of one side of the oil outlet pipe is fixedly connected with a bypass valve, the inner wall of the bypass valve is in threaded connection with a plug, a third sealing ring is sleeved between the outer wall of the plug and the inner wall of the bypass valve, a groove is formed in the oil outlet pipe, a spring is fixedly connected inside the groove, one end of the spring, which is far away from the groove, is fixedly connected with a valve, the outer wall of the valve is attached to the through hole, the outer wall of one side of the oil inlet pipe, which is far away from the oil outlet pipe, is fixedly provided with a differential pressure signal transmitter, the equal fixedly connected with connector of the bottom outer wall of advancing oil pipe and going out oil pipe, the inner wall threaded connection of connector has screwed joint.

Furthermore, the outer wall of the threaded connector is sleeved with a flange, and the side wall of the flange is sleeved with a spin-on filter element.

Furthermore, a top groove is formed in the outer wall of the top of the flange, a first sealing ring is arranged inside the top groove, and the first sealing ring is attached to the outer wall of the bottom of the connecting port.

Furthermore, a side groove is formed in the outer wall of the side face of the flange, a second sealing ring is arranged inside the side groove, and the second sealing ring is attached to the inner wall of the rotary filter element.

Furthermore, the outer wall of the top of the upper shell is fixedly connected with a plurality of mounting seats, and thread grooves are formed in the mounting seats.

Furthermore, one end of the oil inlet pipe, which is far away from the differential pressure signal transmitter, is fixedly connected with an oil inlet, and one end of the oil outlet pipe, which is close to the differential pressure signal transmitter, is fixedly connected with an oil outlet.

The utility model has the advantages that:

1. through plug, spring and the valve that sets up, under the oil pressure in advancing oil pipe is normal, the plug passes through extrusion spring, and spring extrusion valve makes the valve shutoff through-hole, avoids advancing the fluid entering of oil pipe and goes out oil pipe, and under the oil pressure when advancing oil pipe in was too high, twist and move the plug and advance oil pipe in fluid alright get into out oil pipe through the through-hole, operating personnel washs or changes the filter core, can not cause the pause of whole job flow line.

2. Through the differential pressure signal generator, the differential pressure signal generator detects the pressure of fluid in the oil inlet pipe and the oil outlet pipe, and sends out a message when the pressure is increased to a set value, so that an operator is instructed to clean or replace the filter element, and the operator does not need to stare at the filter element all the time.

3. Through the sealing washer one and the sealing washer three that set up, the gap between sealing flange top outer wall and the connector bottom outer wall is sealed to sealing washer one, avoids fluid to spill from it, and the gap between three sealed plug of sealing washer and the bypass valve inner wall avoids fluid to spill from the centre.

4. Through the sealing ring II, the sealing ring II seals a gap between the outer wall of the side face of the flange and the inner wall of the spin-on filter element, and oil in the spin-on filter element is prevented from flowing out of the gap.

Drawings

Fig. 1 is a schematic front structural view of a parallel filter according to the present invention;

fig. 2 is a schematic top view of a parallel filter according to the present invention;

FIG. 3 is a schematic structural view of a parallel filter bypass valve according to the present invention;

fig. 4 is a partially enlarged schematic view of a parallel filter a according to the present invention.

In the figure: the device comprises an upper shell 1, an oil inlet pipe 2, an oil outlet pipe 3, a bypass valve 4, a through hole 5, a plug 6, a groove 7, a spring 8, a valve 9, a screwed filter core 10, a connecting port 11, a threaded joint 12, a flange 13, a top groove 14, a first sealing ring 15, a side groove 16, a second sealing ring 17, a differential pressure transmitter 18, an oil inlet 19, an oil outlet 20, a mounting seat 21 and a third sealing ring 22.

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.

Referring to fig. 1-4, a parallel filter comprises an upper casing 1, an oil inlet pipe 2 is arranged on one side of the upper casing 1, an oil outlet pipe 3 is arranged on the other side of the upper casing 1, the oil outlet pipe 3 and the oil inlet pipe 2 are distributed in parallel, a through hole 5 is arranged on the outer wall of one side of the oil inlet pipe 2 close to the oil outlet pipe 3, the through hole 5 communicates the side walls of the oil inlet pipe 2 and the oil outlet pipe 3, a bypass valve 4 is fixedly connected to the outer wall of one side of the oil outlet pipe 3, a plug 6 is connected to the inner wall of the bypass valve 4 in a threaded manner, the plug 6 is used for plugging the bypass valve 4, a third seal ring 22 is sleeved between the outer wall of the plug 6 and the inner wall of the bypass valve 4, the third seal ring 22 seals the gap between the plug 6 and the inner wall of the bypass valve 4 to prevent oil from leaking out, a groove 7 is arranged inside of the oil outlet pipe 3, the groove 7 is used for fixing a spring 8, and a spring 8 is fixedly connected inside the groove 7, spring 8 extrudees valve 9, make valve 9 shutoff laminating in the entrance to a cave of through-hole 5, spring 8 keeps away from the one end fixedly connected with valve 9 of recess 7, and the outer wall laminating of valve 9 in through-hole 5, valve 9 is used for shutoff through-hole 5, advance oil pipe 2 and keep away from one side outer wall fixed mounting that goes out oil pipe 3 and have pressure differential signaling apparatus 18, pressure differential signaling apparatus 18 detects into the pressure of fluid in oil pipe 2 and the oil pipe 3, send out the message when pressure increases to the setting value, advance the equal fixedly connected with connector 11 of oil pipe 2 and the bottom outer wall that goes out oil pipe 3, connector 11's inner wall threaded connection has screwed joint 12, screwed joint 12 is used for connecting spiral dress filter core 10.

Further, the outer wall of the threaded joint 12 is sleeved with a flange 13, the side wall of the flange 13 is sleeved with a spin-on filter element 10, and the spin-on filter element 10 is used for filtering oil.

Further, top groove 14 has been seted up to the top outer wall of flange 13, and the inside of top groove 14 is provided with a sealing washer 15, and a sealing washer 15 laminates mutually with the bottom outer wall of connector 11, and a sealing washer 15 seals the gap between 13 top outer walls of flange and the connector 11 bottom outer wall, avoids fluid to flow out.

Furthermore, a side groove 16 is formed in the outer wall of the side face of the flange 13, a second sealing ring 17 is arranged inside the side groove 16, the second sealing ring 17 is attached to the inner wall of the spin-on filter element 10, and the second sealing ring 17 seals a gap between the outer wall of the side face of the flange 13 and the inner wall of the spin-on filter element 10, so that oil in the spin-on filter element 10 is prevented from flowing out of the gap.

Further, a plurality of installation bases 21 are fixedly connected to the outer wall of the top of the upper shell 1, thread grooves are formed in the installation bases 21, and the thread grooves of the installation bases 21 are convenient for installation, fixation and disassembly of parallel filters.

Furthermore, one end of the oil inlet pipe 2, which is far away from the differential pressure transmitter 18, is fixedly connected with an oil inlet 19, the oil inlet 19 is used for entering oil, one end of the oil outlet pipe 3, which is near to the differential pressure transmitter 18, is fixedly connected with an oil outlet 20, and the oil inlet 19 is used for discharging the oil.

The working principle is as follows: during the use, fluid gets into oil pipe 2 through oil inlet 19, the plug 6 that is used for bypass valve 4 inside this moment does not open, fluid can only get into advance to filter in the spiral-wound filter core 10 of oil pipe 2 below, pollutant in the fluid constantly is intercepted by the filter core, make into the hydraulic fluid port pressure in the oil pipe 2 and increase gradually, when pressure increases to the setting value, pressure difference signaling apparatus 18 sends the message, instruct operating personnel to change the filter core, if because of various reasons, operating personnel do not in time change the filter core, advance when the pressure differential between oil pipe and the play oil pipe reaches the setting value, spring 8 is compressed, valve 9 is back down under the oil pressure effect, fluid in advancing oil pipe 2 alright get into out oil pipe 3 through-hole 5, prevent to cause entire system to shut down because of spiral-wound filter core blocks up.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered in the protection scope of the present invention.

Claims

1. A parallel filter comprises an upper shell (1) and is characterized in that an oil inlet pipe (2) is arranged on one side of the upper shell (1), an oil outlet pipe (3) is arranged on the other side of the upper shell (1), the oil outlet pipe (3) and the oil inlet pipe (2) are distributed in parallel, a through hole (5) is formed in the outer wall of one side, close to the oil outlet pipe (3), of the oil inlet pipe (2), a bypass valve (4) is fixedly connected to the outer wall of one side of the oil outlet pipe (3), a plug (6) is in threaded connection with the inner wall of the bypass valve (4), a third sealing ring (22) is sleeved between the outer wall of the plug (6) and the inner wall of the bypass valve (4), a groove (7) is formed in the plug (6), a spring (8) is fixedly connected to the inside of the groove (7), and a valve (9) is fixedly connected to one end, far away from the groove (7), of the spring (8), and the outer wall of valve (9) is laminated in through-hole (5), advance oil pipe (2) and keep away from one side outer wall fixed mounting of oil pipe (3) and have pressure differential signaling apparatus (18), advance the equal fixedly connected with connector (11) of the bottom outer wall of oil pipe (2) and oil pipe (3), the inner wall threaded connection of connector (11) has screwed joint (12).

2. A parallel filter according to claim 1, wherein a flange (13) is sleeved on the outer wall of the threaded joint (12), and a spin-on filter element (10) is sleeved on the side wall of the flange (13).

3. The parallel filter according to claim 2, wherein the top outer wall of the flange (13) is provided with a top groove (14), a first sealing ring (15) is arranged inside the top groove (14), and the first sealing ring (15) is attached to the bottom outer wall of the connecting port (11).

4. The parallel filter according to claim 2, wherein the side outer wall of the flange (13) is provided with a side groove (16), a second sealing ring (17) is arranged inside the side groove (16), and the second sealing ring (17) is attached to the inner wall of the spin-on filter element (10).

5. The parallel filter according to claim 1, wherein a plurality of mounting seats (21) are fixedly connected to the outer wall of the top of the upper shell (1), and thread grooves are formed in the mounting seats (21).

6. The parallel filter according to claim 1, wherein an oil inlet (19) is fixedly connected to an end of the oil inlet pipe (2) far away from the differential pressure signal generator (18), and an oil outlet (20) is fixedly connected to an end of the oil outlet pipe (3) near the differential pressure signal generator (18).