CN206234446U - A kind of two-way flow rate valve of carry potential overflow function - Google Patents
A kind of two-way flow rate valve of carry potential overflow function Download PDFInfo
- Publication number
- CN206234446U CN206234446U CN201621091850.8U CN201621091850U CN206234446U CN 206234446 U CN206234446 U CN 206234446U CN 201621091850 U CN201621091850 U CN 201621091850U CN 206234446 U CN206234446 U CN 206234446U
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- main valve
- cavity
- rear portion
- spool
- flow rate
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Abstract
The utility model discloses a kind of two-way flow rate valve of carry potential overflow function, the main valve housing docked including main valve seat and with main valve seat front-end port, the main valve is arranged with anterior cavity and rear portion cavity, sliding spool is provided with the anterior cavity, the rear portion of the sliding spool is provided with spool chamber, the front portion of the sliding spool is provided with the first segment discharge orifice connected with spool chamber, sliding spool back-moving spring is provided with the spool chamber, the rear portion of the anterior cavity is provided with gear step, the second throttle orifice that the main valve housing is communicated between anterior cavity and rear portion cavity, the poppet valve core acted on the second throttle orifice is provided with the rear portion cavity, the pressure spring abutted with poppet valve core elasticity is provided with the main valve seat, the rear end of the main valve seat is connected with adjusting screw rod.The utility model integrates two-way flow rate valve and overflow valve, and two-way flow rate valve can be made to have the function of overflow valve concurrently, and with simple structure, space hold is small, it is easy to process, and integration is strong, the advantage of low cost.
Description
Technical field
The utility model is related to hydraulic valve, and in particular to two-way flow rate valve.
Background technology
Two-way flow rate valve and overflow valve in the market is all used separately, and this shortcoming for using is exactly integration
It is bad, take up room big, processed complex is, it is necessary to two jacks are just it is achieved that high cost.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of two-way flow rate valve of carry potential overflow function, in two-way
The function of integrated overflow valve on flow valve, and there is simple structure, low cost.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：The two of a kind of carry potential overflow function are through-flow
Amount valve, including main valve seat and the main valve housing that is docked with main valve seat front-end port, the main valve are arranged with anterior cavity and rear chamber
Body, is provided with sliding spool in the anterior cavity, the front end of the anterior cavity is provided with oil inlet, and the rear portion of the sliding spool is provided with
Spool chamber, the front portion of the sliding spool is provided with the first segment discharge orifice connected with spool chamber, sliding spool is provided with the spool chamber and is answered
Position spring, the rear portion of the anterior cavity is provided with gear step, and the rear portion of the spool chamber is connected with and sliding spool back-moving spring
Rear end elasticity offsets and while the spring base being connected on gear step, in being formed between the spring base and anterior cavity rear wall
Between chamber, the second throttle orifice that the main valve housing is communicated between anterior cavity and rear portion cavity sets in the rear portion cavity
There is the poppet valve core acted on the second throttle orifice, the pressure spring abutted with poppet valve core elasticity, the master are provided with the main valve seat
The rear end of valve seat is connected with and abutted with pressure spring rear end elasticity and adjust the adjusting screw rod of pressure spring decrement, the main valve
The side wall of set correspondence front portion cavity is provided with the first side opening being connected with load port, and the side wall of the sliding spool is provided with and connects with spool chamber
The second logical side opening, the side wall of main valve housing correspondence rear portion cavity is provided with the 3rd side opening, the intermediate cavity and the first side opening it
Between be communicated with structure.
Preferably, the connectivity structure include the main valve housing side wall intercommunicating pore that opens up of correspondence intermediate cavity and by intercommunicating pore and
The connecting pipeline of the first side opening connection.
Preferably, the connectivity structure is the throttle orifice set on spring base.
The technical solution adopted in the utility model, integrates two-way flow rate valve and overflow valve, can make two through-flow
Amount valve has the function of overflow valve concurrently, and with simple structure, space hold is small, it is easy to process, and integration is strong, the advantage of low cost.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the structural representation of the utility model embodiment 2.
Specific embodiment
Embodiment 1, as shown in figure 1, a kind of two-way flow rate valve of carry potential overflow function, including main valve seat 6 and with main valve seat before
The main valve housing 8 of end port docking, the main valve housing 8 is provided with anterior cavity and rear portion cavity, guiding valve is provided with the anterior cavity
Core 14, anterior cavity port inner wall to be provided with carry out sliding spool 14 and stops spacing elastic spring 17.Before the anterior cavity
End is provided with oil inlet, and the rear portion of the sliding spool is provided with spool chamber, and the front portion of the sliding spool is provided with the connected with spool chamber
One throttle orifice a, is provided with sliding spool back-moving spring 13 in the spool chamber, the rear portion of the anterior cavity is provided with gear step, institute
The rear portion for stating spool chamber is connected with and is offseted and while the spring being connected on gear step with sliding spool back-moving spring rear end elasticity
Seat 12, forms intermediate cavity between the spring base and anterior cavity rear wall, the main valve housing 8 anterior cavity and rear portion cavity it
Between the second throttle orifice for being communicated with, the poppet valve core 9 acted on the second throttle orifice, the main valve seat are provided with the rear portion cavity
The pressure spring 5 abutted with poppet valve core elasticity is provided with 6, the rear end of the main valve seat is connected with to be supported with pressure spring rear end elasticity
The adjusting screw rod 1 of the decrement of pressure spring 5 is connect and adjusts, the side wall of the correspondence of the main valve housing 8 front portion cavity is provided with load port, institute
The side wall for stating main valve housing correspondence front portion cavity is provided with the first side opening c being connected with load port, the side wall of the sliding spool be provided with
Second side opening b of spool chamber connection, the side wall of the main valve housing correspondence rear portion cavity is provided with the 3rd side opening e, the intermediate cavity with
Structure is communicated between load port.
Wherein, the connectivity structure include the main valve housing side wall intercommunicating pore that opens up of correspondence intermediate cavity and by intercommunicating pore d and
The connecting pipeline of load port connection.The intercommunicating pore is inclined hole.
The anterior outer wall of main valve housing 8 is provided with the first draw-in groove, and the first O-ring 16 and the first split washer are provided with the first draw-in groove
15.The second draw-in groove is provided with the middle part outer wall of main valve housing 8, the second O-ring 11 and the second split washer 10 are provided with the second draw-in groove.It is main
The front portion of valve seat 6 is provided with external thread section, and external thread section is provided with the 3rd draw-in groove with the stage portion connecting part of rear side, in the 3rd draw-in groove
It is provided with the 3rd O-ring 7.Adjusting screw rod is provided with the regulation head in main valve seat, and regulation head is provided with the 3rd split washer 3 and the
Four O-rings 4, the spiro rod section of adjusting screw rod passes main valve seating portion and is connected with adjusting nut 2.
Operation principle is that fluid enters from oil inlet, and spool chamber is entered into through the first segment discharge orifice a of the front portion of sliding spool 14, then
Load port, the fluid warp of load port are flowed out to by the second side opening b around sliding spool 14, the first side opening c around main valve housing 8
The intermediate cavity that intercommunicating pore d enters between main valve housing 8 and spring base 12 on the side wall of main valve housing 8 is crossed, when load pressure is more than overflow valve
During setting pressure, poppet valve core 9 is opened, and fluid flows to oil return opening from the 3rd side opening e on the wall of main valve housing side, plays the work of safeguard protection
With；Inlet pressure P1, load port mouthful pressure P2, return spring pressure Pk, when steady operation, sliding spool 14 is in one puts down
Weighing apparatus state P1-P2=Pk, first segment discharge orifice a two ends pressure difference △ P=Pk, return spring pressure Pk is constant, according to formula flowK is coefficient of colligation, and A is throttle hole area, and first segment discharge orifice a is fixed orifice, so A is constant, therefore,
Also it is basically unchanged by the flow Q of first segment discharge orifice a；When load port pressure exceedes the setting pressure of pressure spring 5, poppet valve core
9 open, and fluid flows out from oil return opening, realizes overload protection.
Embodiment 2, as shown in Fig. 2 being to cancel main valve housing side wall correspondence intermediate cavity to open up with the difference of embodiment 1
Intercommunicating pore, its connectivity structure is the throttle orifice f set on spring base 12.So, pressure oil throttling f directly from spring base 12
Hole enters into intermediate cavity.Its advantage is easy for installing, compact conformation, it is easy to process.
Protection domain of the present utility model is not limited to above-described embodiment, also comprising function of the same race, different structure other are straight
Dynamic formula overflow valve and pilot operated compound relief valve, two-way flow rate valve also include the flow valve of other structures function of the same race.
Claims (3)
1. a kind of two-way flow rate valve of carry potential overflow function, it is characterised in that：Docked including main valve seat and with main valve seat front-end port
Main valve housing, the main valve is arranged with anterior cavity and rear portion cavity, sliding spool, the anterior chamber is provided with the anterior cavity
The front end of body is provided with oil inlet, and the rear portion of the sliding spool is provided with spool chamber, and the front portion of the sliding spool is provided with and connects with spool chamber
Logical first segment discharge orifice, is provided with sliding spool back-moving spring in the spool chamber, the rear portion of the anterior cavity is provided with gear step,
The rear portion of the spool chamber is connected with and is offseted and while the bullet being connected on gear step with sliding spool back-moving spring rear end elasticity
Spring abutment, forms intermediate cavity between the spring base and anterior cavity rear wall, the main valve housing anterior cavity and rear portion cavity it
Between the second throttle orifice for being communicated with, the poppet valve core acted on the second throttle orifice, the main valve seat are provided with the rear portion cavity
In be provided with and be connected with abut elastic with pressure spring rear end with the poppet valve core pressure spring that abuts of elasticity, the rear end of the main valve seat
And the adjusting screw rod of pressure spring decrement is adjusted, the side wall of the main valve housing correspondence front portion cavity is provided with what is be connected with load port
First side opening, the side wall of the sliding spool is provided with the second side opening connected with spool chamber, the main valve housing correspondence rear portion cavity
Side wall is provided with the 3rd side opening, and structure is communicated between the intermediate cavity and the first side opening.
2. the two-way flow rate valve of a kind of carry potential overflow function according to claim 1, it is characterised in that：The connectivity structure bag
Include the intercommunicating pore that main valve housing side wall correspondence intermediate cavity is opened up and the connecting pipeline for connecting intercommunicating pore and the first side opening.
3. the two-way flow rate valve of a kind of carry potential overflow function according to claim 1, it is characterised in that：The connectivity structure is
The throttle orifice set on spring base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091850.8U CN206234446U (en) | 2016-09-29 | 2016-09-29 | A kind of two-way flow rate valve of carry potential overflow function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621091850.8U CN206234446U (en) | 2016-09-29 | 2016-09-29 | A kind of two-way flow rate valve of carry potential overflow function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234446U true CN206234446U (en) | 2017-06-09 |
Family
ID=58981902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621091850.8U Active CN206234446U (en) | 2016-09-29 | 2016-09-29 | A kind of two-way flow rate valve of carry potential overflow function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234446U (en) |
-
2016
- 2016-09-29 CN CN201621091850.8U patent/CN206234446U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311835 no.689 Jiefang Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Huayi Precision Machinery Co.,Ltd. Address before: 311835 no.689 Jiefang Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG HUAYI PRECISION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230909 Address after: 311800 Diankou Town Industrial Zone, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanshang Zhidi Technology Co.,Ltd. Address before: 311835 no.689 Jiefang Road, Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: Zhejiang Huayi Precision Machinery Co.,Ltd. |