CN214465215U - Hydraulic integrated valve device with self-sealing safety backpressure bypass function - Google Patents
Hydraulic integrated valve device with self-sealing safety backpressure bypass function Download PDFInfo
- Publication number
- CN214465215U CN214465215U CN202120410382.0U CN202120410382U CN214465215U CN 214465215 U CN214465215 U CN 214465215U CN 202120410382 U CN202120410382 U CN 202120410382U CN 214465215 U CN214465215 U CN 214465215U
- Authority
- CN
- China
- Prior art keywords
- safety
- valve core
- spring
- back pressure
- bypass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a hydraulic pressure integrated valve device with proclaim oneself safe backpressure bypass function, include: the valve body is provided with a safety backpressure channel and a bypass circuit which are distributed in parallel; the bypass valve core assembly comprises a bypass valve core body, a first spring and a first spring seat which are sequentially connected into a whole from top to bottom; the bypass valve core body, the first spring and the first spring seat are all arranged in the bypass loop; the safety back pressure valve core assembly comprises a back pressure valve core, a safety part, a second spring and a second spring seat which are sequentially connected into a whole from top to bottom; the back pressure valve core, the safety component, the second spring and the second spring seat are all arranged in the safety back pressure channel; the oil filter element is arranged at the top of the valve body; the filtering shell is rolled and pressed with the valve body into a whole. The utility model discloses can be according to system pressure and the operating mode of difference, properly open different functional valves, provide the guarantee for the function of system.
Description
Technical Field
The utility model relates to a filter equipment technical field, more specifically the hydraulic pressure integrated valve device with proclaim oneself safe backpressure bypass function that says so relates to one kind.
Background
The filter can be divided into an oil absorption filter, an oil return filter and a pressure pipeline filter according to the application, and can be divided into glass fiber, paper and stainless steel wire meshes according to different filter materials. In order to prevent that the particulate matter among the external environment from getting into inside the oil tank at the oil tank during operation, lead to fluid pollution accident, often need in time change filter core.
However, some filters only have the function of a bypass valve, and the bypass valve is designed in a filter head or a filter element, so that inconvenience is brought to installation and maintenance; some filters have self-sealing function, can be used only when the filter element is replaced and are in a non-working state for a long time; the traditional filter is almost rarely provided with a safe back pressure valve, so that oil liquid in the system generates certain impact on a filter element in the filter, the filter is indirectly influenced, the abrasion to a hydraulic sealing element is accelerated, the service life of the hydraulic sealing element is shortened, and even the sealing failure is caused, so that the whole machine is stopped to be overhauled.
Therefore, it is an urgent need to solve the problem of providing a hydraulic integrated valve device with self-sealing safety back pressure bypass function with strong applicability.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a hydraulic pressure integrated valve device with proclaim oneself safe backpressure bypass function can suitably open different functional valves according to system pressure and the operating mode of difference, provides the guarantee for the function of system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hydraulic integrated valve device with self-sealing safety back pressure bypass function, comprising:
the valve body is provided with a safety backpressure channel and a bypass circuit which are distributed in parallel;
the bypass valve core assembly comprises a bypass valve core body, a first spring and a first spring seat which are sequentially connected into a whole from top to bottom; the bypass spool body, the first spring, and the first spring seat are all mounted in the bypass circuit;
the safety back pressure valve core assembly comprises a back pressure valve core, a safety part, a second spring and a second spring seat which are sequentially connected into a whole from top to bottom; the back pressure valve core, the safety component, the second spring and the second spring seat are all arranged in the safety back pressure channel;
the oil filter element is arranged at the top of the valve body;
and the filter shell and the valve body are rolled and pressed into a whole.
Through taking above scheme, the beneficial effects of the utility model are that:
in a shutdown state, the bypass valve core assembly and the safety backpressure valve core assembly are both in a closed state, and the interior of the valve body is in a self-sealing state, so that the oil filter core can be replaced without oil pumping operation in an oil tank; when the safety back pressure valve element assembly is opened, the oil flow in the system firstly acts on the back pressure valve element, and the impact of the oil is relieved by the pressure of the second spring, so that the buffer effect is achieved, and the indirect impact of the oil on the oil filter element is reduced; when the oil filter element dirt receiving amount reaches a critical value, the bypass valve element assembly is opened by the system oil according to the pressure difference between the upstream and the downstream, so that the dirt receiving capacity of the oil filter element is improved, and the oil supply requirement of the system is met. The whole process can be according to different system pressure and operating mode, properly opens different functional valves, provides the guarantee for the operation of system.
Further, the safety component comprises a safety valve core, a sealing gasket, a third spring, a gland and a nut; the safety valve core is arranged in the through hole of the back pressure valve core in a penetrating way; the bottom of the safety valve core is provided with a bolt; the sealing gasket is arranged between the safety valve core and the top wall of the back pressure valve core; the third spring is arranged between the safety valve core and the inner wall of the through hole; the gland is sleeved on the bolt and presses the third spring tightly under the action of the nut.
Further, a first check ring is fixed at the bottom of the first spring seat.
Further, a second retainer ring is fixed to the bottom of the second spring seat.
According to the technical scheme, compare with prior art, the utility model provides a hydraulic pressure integrated valve device with from sealing safety back pressure bypass function, under the operating mode condition of reply different systems, open different service function, safety back pressure case subassembly is opened according to system reflux pressure needs, bypass valve case subassembly is opened when the protection system early warning, the different pressure of system is adjusted through spring force, open and close of latus rectum and runner size, it helps the nature extremely to have for huge hydraulic system structure, play huge effect in the life-span of maintaining hydraulic component, not only protected the filter itself, still provide safe and reliable's guarantee to the high hydraulic component of follow-up fluid precision grade demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hydraulic integrated valve device with a self-sealing safety back pressure bypass function according to the present invention;
fig. 2 is a schematic structural diagram of a self-sealing state of a hydraulic integrated valve device with a self-sealing safety back pressure bypass function according to the present invention;
fig. 3 is a schematic structural diagram of a safety component provided by the present invention;
fig. 4 is a schematic structural diagram of an open state of a bypass valve core assembly in a hydraulic integrated valve device with a self-sealing safety back pressure bypass function according to the present invention;
fig. 5 is a schematic structural diagram illustrating an open state of a safety component in a hydraulic integrated valve device with a self-sealing safety back pressure bypass function according to the present invention;
fig. 6 is a schematic structural diagram of an open state of a back pressure valve element in a hydraulic integrated valve device with a self-sealing safety back pressure bypass function according to the present invention.
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 embodiment of the utility model discloses a hydraulic pressure integrated valve device with proclaim oneself safe backpressure bypass function, include:
the valve comprises a valve body 1, wherein the valve body 1 is provided with a safety back pressure channel 11 and a bypass loop 12 which are distributed in parallel;
the bypass valve core assembly 2 comprises a bypass valve core body 21, a first spring 22 and a first spring seat 23 which are sequentially connected into a whole from top to bottom; the bypass spool body 21, the first spring 22, and the first spring seat 23 are all installed in the bypass circuit 12;
the safety back pressure valve core assembly 3 comprises a back pressure valve core 31, a safety component 32, a second spring 33 and a second spring seat 34 which are sequentially connected into a whole from top to bottom; the back pressure spool 31, the safety member 32, the second spring 33, and the second spring seat 34 are all installed inside the safety back pressure passage 11;
the oil filter element 4 is arranged at the top of the valve body 1;
the filtering shell 5, the filtering shell 5 and the valve body 1 are rolled and pressed into a whole.
The utility model discloses under the shut down condition, bypass valve core subassembly 2 and safe back pressure valve core subassembly 3 are in the closed condition, and the inside of valve body 1 is in the self-sealing state to realize need not to carry on the oil pumping operation in the oil tank and can change the operation of oil filter core 4; when the safety backpressure valve core 3 component is opened, the oil in the system flows to firstly act on the backpressure valve core 31, and the impact of the oil is relieved by the pressure of the second spring 33, so that the buffer effect is achieved, and the indirect impact of the oil on the oil filter element 4 is reduced; when the dirt holding capacity of the oil filter element 4 reaches a critical value, the bypass valve core assembly 2 is opened by system oil according to the pressure difference between the upstream and the downstream, so that the dirt holding capacity of the oil filter element 4 is improved, and the oil supply requirement of the system is met. The whole process can be according to different system pressure and operating mode, properly opens different functional valves, provides the guarantee for the operation of system.
Specifically, the safety member 32 includes a safety valve spool 321, a packing 322, a third spring 323, a gland 324, and a nut 325; the relief valve spool 321 is penetratingly installed in the through hole of the back pressure spool 31; the bottom of the safety valve core 321 is provided with a bolt; a packing 322 is provided between the relief spool 321 and the top wall of the back pressure spool 31; the third spring 323 is arranged between the safety valve core 321 and the inner wall of the through hole; the gland 324 is sleeved on the bolt and presses the third spring 323 under the action of the nut 325.
Specifically, a first retainer ring 24 is fixed to the bottom of the first spring seat 23.
Specifically, a second retainer 35 is fixed to the bottom of the second spring seat 34.
The working principle of the utility model is as follows:
as shown in fig. 4, in normal operation, some pollutants of hydraulic component's action, running-in and wearing and tearing can be discharged and enter into fluid, can cause the pollution to original fluid, carry out loop filter through oil filter core 4, accumulate the pollutant interception gradually on the surface of oil filter core 4, can make oil filter core 4's filter capacity descend, and fluid through oil filter core 4 reduces gradually, finally leads to before the filtration and the fluid after the filtration to produce certain pressure differential. Under the background, the valve body 1 and the bypass valve core body 21 in the initial state are mutually sealed, at the moment, the acting force of oil is continuously accumulated to the bypass valve core body 21, the first spring 22 is compressed, the valve body 1 and the bypass valve core body 21 are gradually opened, the oil flows through the opened gap, the force acting on the bypass valve core body 21 is gradually increased, the first spring 22 is slowly extruded, the oil flows into an oil tank, and therefore the situation that the acting force of the oil is completely applied to the surface of the oil filter element 4 to cause the damage of the oil filter element 4, intercepted pollutants are returned to the oil again, and finally the whole system stops running is avoided, so that the stable running of the device is protected;
as shown in fig. 5, when the device is operated, when the suction force of the oil pump is greater than the pressure value set by the safety component 32, under the suction force of the oil pump, oil enters the valve body 1, the oil occupies all the space on the surface of the back pressure valve core 31, the third spring 323 is pulled, the oil pushes the sealing gasket 322 to drive the safety valve core 321 to move upwards, when the sealing gasket 322 is separated from the contact surface of the back pressure valve core 31, the oil flows into the oil filter element 4 from the separated gap, i.e. the safety component 32 is opened, and in the state of no operation or halt, the third spring 323 recovers the spring compression amount, and at this time, the safety component 32 is in the closed state, so that the oil filter element 4 can be replaced without oil pumping operation in the oil tank;
as shown in fig. 6, the oil returns to the oil tank quickly and instantly, and a certain impact is caused to the oil filter element 4, the acting force is firstly transmitted to the back pressure valve core 31 on the surface of the safety component 32, the back pressure valve core 31 applies a certain acting force to the second spring 33, so that the second spring 33 is compressed, a gap is opened between the valve body 1 and the back pressure valve core 31, and the redundant oil returns to the inside of the oil tank stably, thereby effectively reducing the impact of the fluctuation of the oil and enabling the oil to tend to flow steadily.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A hydraulic integrated valve device with a self-sealing safety back pressure bypass function is characterized by comprising:
the valve body is provided with a safety backpressure channel and a bypass circuit which are distributed in parallel;
the bypass valve core assembly comprises a bypass valve core body, a first spring and a first spring seat which are sequentially connected into a whole from top to bottom; the bypass spool body, the first spring, and the first spring seat are all mounted in the bypass circuit;
the safety back pressure valve core assembly comprises a back pressure valve core, a safety part, a second spring and a second spring seat which are sequentially connected into a whole from top to bottom; the back pressure valve core, the safety component, the second spring and the second spring seat are all arranged in the safety back pressure channel;
the oil filter element is arranged at the top of the valve body;
and the filter shell and the valve body are rolled and pressed into a whole.
2. The hydraulic integrated valve device with the self-sealing safety back pressure bypass function according to claim 1, characterized in that the safety component comprises a safety valve core, a sealing gasket, a third spring, a gland and a nut;
the safety valve core is arranged in the through hole of the back pressure valve core in a penetrating way; the bottom of the safety valve is provided with a bolt;
the sealing gasket is arranged between the safety valve core and the top wall of the back pressure valve core;
the third spring is arranged between the safety valve core and the inner wall of the through hole;
the gland is sleeved on the bolt and presses the third spring tightly under the action of the nut.
3. The hydraulic integrated valve device with the self-sealing safety back pressure bypass function as claimed in claim 1, wherein a first retainer ring is fixed to the bottom of the first spring seat.
4. The hydraulic integrated valve device with the self-sealing safety back pressure bypass function as claimed in claim 1, wherein a second retainer ring is fixed to the bottom of the second spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120410382.0U CN214465215U (en) | 2021-02-24 | 2021-02-24 | Hydraulic integrated valve device with self-sealing safety backpressure bypass function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120410382.0U CN214465215U (en) | 2021-02-24 | 2021-02-24 | Hydraulic integrated valve device with self-sealing safety backpressure bypass function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465215U true CN214465215U (en) | 2021-10-22 |
Family
ID=78145590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120410382.0U Active CN214465215U (en) | 2021-02-24 | 2021-02-24 | Hydraulic integrated valve device with self-sealing safety backpressure bypass function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214465215U (en) |
-
2021
- 2021-02-24 CN CN202120410382.0U patent/CN214465215U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050199283A1 (en) | Hydraulic filter assembly with priority valve | |
| CN204677215U (en) | A kind of liquids double-rows pilot-operated type high-flow safety valve | |
| CN102155444A (en) | Hydraulic actuator for automatic drainage system of coal mine | |
| CN211039253U (en) | Bidirectional pipeline filter of hydraulic pipeline system | |
| CN214465215U (en) | Hydraulic integrated valve device with self-sealing safety backpressure bypass function | |
| CN203854674U (en) | Control device for quick brake of monorail crane | |
| JP2009513876A (en) | Transient pressure spike remover in stationary fluid systems | |
| CN214119698U (en) | Water hammer eliminating device for water conveying pipeline for conveying polluted media | |
| CN213954516U (en) | Diaphragm type hydraulic control valve for preventing water hammer | |
| CN214616709U (en) | Heavy-duty machine oil filter seat assembly that digs | |
| CN109695754B (en) | Hydraulic oil inlet valve | |
| CN213839123U (en) | High-integration oil filter bypass device | |
| US5791372A (en) | Relief valve | |
| CN214093165U (en) | Non-pressure self-through check valve for oil supply branch pipe | |
| CN217301765U (en) | One-way relief valve structure of emergency cut-off valve | |
| CN214304588U (en) | Hydraulic system loop protection device for double-wheel milling | |
| CN220706495U (en) | Check valve capable of reducing water flow impact | |
| CN210566454U (en) | Pressure reducing check valve | |
| CN216895171U (en) | Hydraulic pump assembly for emergency electro-hydraulic energy system of aircraft landing gear | |
| CN216198886U (en) | Hydraulic end assembly of safe pressure relief fracturing truck | |
| CN217481677U (en) | Hydraulic control device for cable logging tractor | |
| CN217152507U (en) | Filter protection device, hydraulic system and vehicle | |
| CN217177011U (en) | Automatic let out electrohydraulic servo valve end cover structure | |
| CN210069048U (en) | Backflow preventer with double check valves | |
| CN210240147U (en) | Filtering device of energy accumulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |