CN217582655U - Novel valve core of overflow valve - Google Patents
Novel valve core of overflow valve Download PDFInfo
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- CN217582655U CN217582655U CN202221000604.2U CN202221000604U CN217582655U CN 217582655 U CN217582655 U CN 217582655U CN 202221000604 U CN202221000604 U CN 202221000604U CN 217582655 U CN217582655 U CN 217582655U
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Abstract
The utility model relates to a novel case of overflow valve, the case includes the main part, and the main part design is the cylinder shape, and it has the circular slot to open in the middle of the main part one end, and the design has turbulent flow awl and main part other end tip a week to design into outer ring cone face in the middle of the main part other end, and the design has the damping hole in the middle of the inboard bottom of circular slot, and turbulent flow awl is close to root a week design and has a plurality of auxiliary flow ways, the inboard position of the inboard UNICOM damping hole of a plurality of auxiliary flow ways, inside the outside UNICOM circular slot of damping hole, the other end of the outside UNICOM main part of a plurality of auxiliary flow ways. The advantage is that the utility model adds a plurality of auxiliary flow channels smaller than the damping holes before the damping holes of the valve core, when one or more auxiliary flow channels are blocked, the valve core can still work normally, and the phenomenon of frequently disassembling the overflow valve is solved; the turbulent cone is designed at the front end of the valve core, so that the direction of oil is smoothly changed when the oil flows through the front end of the valve core, and the turbulent phenomenon is solved.
Description
Technical Field
The utility model relates to a hydraulic press field, concretely relates to novel case of overflow valve.
Background
A two-way cartridge valve is generally composed of 4 parts, a plug-in element, a pilot element, a control cover and a cartridge block. The inserted element is the main stage or power element of the two-way cartridge valve, is inserted in a valve body or an integrated block, and controls the on-off of liquid flow or the pressure and the flow through the opening and closing actions and the opening amount of the inserted element so as to control the direction, the pressure and the speed of the hydraulic actuating mechanism.
At present, hydraulic transmission largely uses an overflow two-way cartridge valve to control the pressure and the reversing of an oil cylinder, wherein a pressure control valve core is shown as a figure (figure 1) and has the following two defects, (1) system pressure loss is caused due to the blockage of a damping hole, and (2) turbulent flow is caused when oil flows through the surface of the valve core, so that the heating of the oil is accelerated.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a novel case of overflow valve, the design is simple, convenient to use, compact structure solves damping hole jam problem and case surface and takes place turbulent problem.
The technical scheme of the utility model:
the novel case of overflow valve, the case includes the main part, and the main part design is the cylinder shape, and it has the circular slot to open in the middle of the main part one end, and the design has turbulence cone and main part other end tip a week to design into outer annular conical surface in the middle of the main part other end, and the design has the damping hole in the middle of the inboard bottom of circular slot, and the turbulence cone is close to root a week design and has a plurality of auxiliary flow channels, the inboard position of the inboard UNICOM damping hole of a plurality of auxiliary flow channels, inside the outside UNICOM circular slot of damping hole, the other end of the outside UNICOM main part of a plurality of auxiliary flow channels.
The auxiliary flow channels respectively form a certain included angle with the damping holes, and the included angle is 40-50 degrees.
The included angle is 45 degrees.
An annular boss is designed on the outer side of the main body and on one side close to the opening part of the circular groove; the turbulence cone is designed as a conical projection.
The novel valve element of the overflow valve is applied to an overflow two-way cartridge valve, the overflow two-way cartridge valve comprises a pilot control valve, a control cover plate, a valve sleeve, a valve block, a spring and a valve element, a circular groove is formed in the middle of the valve block, a circular clamping groove is formed in the middle of the bottom of the circular groove, a circular inlet is formed in the middle bottom of the circular clamping groove, a circular outlet is formed in one side, close to the lower end, of the inside of the circular groove, the valve sleeve is arranged in the circular groove of the valve block, the lower end of the valve sleeve is clamped in the circular clamping groove, the upper end of the valve sleeve is embedded in the circular groove, an annular step is designed in the middle position of the outer side of the valve sleeve, a plurality of through holes are designed in the periphery of the annular step, a cylindrical groove is formed in the middle of the valve sleeve, a flow channel hole is formed in the bottom of the cylindrical groove, an inner annular transition conical surface is further designed between the upper end of the flow channel hole and the outer annular conical surface of the lower end of the valve element is in the cylindrical groove and is in sealing fit with the inner annular transition conical surface; the peripheral surface of the outer side of the valve core is in sliding sealing fit with the cylindrical groove of the valve sleeve; the spring is arranged in the circular groove of the valve core, the control cover plate is sealed on the valve block, the upper end of the spring is propped against the lower end of the control cover plate, and the pilot control valve is arranged at the upper end of the control cover plate.
The utility model has the advantages that in order to solve the blockage phenomenon of the valve core damping Kong Jingchang, the utility model additionally drills a plurality of auxiliary flow passages smaller than the damping holes in front of the damping holes of the valve core, when one or more auxiliary flow passages are blocked, the valve core still can normally work, the problem of frequently disassembling the overflow valve is solved, and the fault occurrence rate is reduced by a fraction;
in order to solve the turbulence phenomenon at the front end of the valve core, the turbulence cone is designed at the front end of the valve core, so that when oil flows through the front end of the valve core, the direction of the oil is smoothly changed, the turbulence phenomenon is solved, and the serious impact when the valve core is opened is solved under the condition of not reducing the flow of the oil.
Drawings
FIG. 1 is a schematic view of a cartridge of a conventional spill two-way cartridge valve.
Fig. 2 is a schematic view of the valve cartridge of the present invention.
Fig. 3 is a schematic diagram of the application state of the valve element of the present invention.
Detailed Description
Referring to the attached drawings 2-3, the novel valve core of the overflow valve comprises a main body, wherein the main body is designed into a cylindrical shape, a circular groove is formed in the middle of one end of the main body, a turbulence cone 11 is designed on the outer side in the middle of the other end of the main body, an outer annular conical surface 12 is designed on one circle of the end part of the other end of the main body, a damping hole 13 is designed in the middle of the bottom of the inner side of the circular groove, a plurality of auxiliary flow channels 14 are designed on the circumference of the turbulence cone 11 close to the root, the inner sides of the auxiliary flow channels 14 are communicated with the inner side positions of the damping hole 13, the outer sides of the damping hole 13 are communicated with the inside of the circular groove, and the outer sides of the auxiliary flow channels 14 are communicated with the other end of the main body.
The auxiliary flow channels 14 respectively form a certain included angle with the damping holes 13, and the included angle is 40-50 degrees. The optimal size of the included angle is 45 degrees. The design of the auxiliary flow channel can effectively ensure that the valve enters from a position of a week, the valve is matched with the turbulent flow cone for flow distribution and stably enters, one auxiliary flow channel is blocked, the work of other auxiliary flow channels is not influenced, the normal work of the valve is ensured, the valve is not required to be frequently detached for dredging, the valve can work as long as one auxiliary flow channel is kept smooth, the design diameter of the auxiliary flow channel is 0.8mm, the design diameter of the damping hole is 1mm, and the problem that the damping hole is blocked is effectively prevented in the design.
An annular boss is designed on the outer side of the main body and on one side close to the opening part of the circular groove; the turbulence cones 11 are designed as conical bulges.
The novel overflow valve core 1 is applied to an overflow two-way cartridge valve, the overflow two-way cartridge valve comprises a pilot control valve 2, a control cover plate 3, a valve sleeve 4, a valve block 5, a spring 6 and a valve core 1, a circular groove is formed in the middle of the valve block 5, a circular clamping groove is formed in the middle of the bottom of the circular groove, a circular inlet is formed in the middle bottom of the circular clamping groove, a circular outlet is formed in one side, close to the lower end, of the inside of the circular groove, a circular groove is formed in one side, close to the lower end, of the valve sleeve 4, the lower end of the valve sleeve 4 is clamped in the circular clamping groove, the upper end of the valve sleeve 4 is embedded in the circular groove, the middle position of the outer side of the valve sleeve 4 is designed to be an annular step, a plurality of through holes are formed in the periphery of the position of the valve sleeve at the annular step, a cylindrical groove is formed in the middle of the valve sleeve 4, a flow channel conical surface is formed in the bottom of the cylindrical groove, an inner annular conical surface is designed between the upper end of the flow channel hole and the lower end of the cylindrical groove, and the valve core 1 is arranged in the cylindrical groove and an outer annular conical surface 12 at the lower end of the valve core 1 is in sealing fit with the inner annular transition; the peripheral surface of the outer side of the valve core 1 is in sliding sealing fit with the cylindrical groove of the valve sleeve 4; the spring 6 is arranged in a circular groove of the valve core 1, the control cover plate 3 is sealed on the valve block 5, the upper end of the spring 6 is propped against the lower end of the control cover plate 3, and the pilot control valve 2 is arranged at the upper end of the control cover plate 3. Fig. 3 is a simplified diagram of an overflow two-way cartridge valve, in which the pilot control valve and the oil passage connected to the valve outlet are of conventional design and are omitted.
The utility model discloses during the use, normally the case seals with the valve barrel under the spring action, the pilot control valve also is in the closed condition, get into from the circular import of overflow two-way cartridge valve when hydraulic oil, hydraulic oil reachs turbulent cone position, shunt through turbulent cone, change the flow direction smoothly, get into a plurality of auxiliary flow ways, reenter in the damping hole, get into in the circular slot of case, arrive the pilot control valve at the runner through the valve piece, the oil pressure is greater than the spring pressure of pilot control valve, the pilot control valve is opened, the export of hydraulic oil UNICOM overflow two-way cartridge valve, because the pressure release of pilot control valve, the circular import oil pressure of case below is greater than the spring force, the case then goes upward in the valve barrel, whole valve is opened, hydraulic oil gets into a plurality of through-holes of valve barrel from circular import, be full of the annular step outside space of valve barrel, get into the circular export of valve piece one side, when hydraulic oil pressure is little, the pilot control valve is closed, the spring then controls down the case closure, outer annular transition conical surface seals up with the interior annular and cooperates.
Claims (5)
1. The novel valve core of the overflow valve is characterized in that the valve core comprises a main body, the main body is designed into a cylindrical shape, a circular groove is formed in the middle of one end of the main body, a turbulent flow cone is designed in the middle of the other end of the main body, an outer annular conical surface is designed in one circle of the end part of the other end of the main body, a damping hole is designed in the middle of the inner side bottom of the circular groove, a plurality of auxiliary flow channels are designed in the periphery of the turbulent flow cone close to the root, the inner side positions of the inner side communicated damping holes of the auxiliary flow channels are arranged, the outer side communicated with the circular groove of the damping hole is arranged inside the outer side communicated with the main body of the auxiliary flow channels.
2. The novel valve core of the overflow valve as claimed in claim 1, wherein the auxiliary flow passages are respectively at an included angle with the damping hole, and the included angle is between 40 and 50 degrees.
3. The novel valve core of the overflow valve according to claim 2, characterized in that the included angle is 45 degrees.
4. The novel valve core of the overflow valve according to claim 1, characterized in that an annular boss is designed on the outer side of the main body and on one side close to the circular groove opening; the turbulence cone is designed as a conical projection.
5. The novel valve core of the overflow valve as claimed in claim 1, wherein the novel valve core of the overflow valve is applied to an overflow two-way cartridge valve, the overflow two-way cartridge valve comprises a pilot control valve, a control cover plate, a valve sleeve, a valve block, a spring and a valve core, a circular groove is formed in the middle of the valve block, a circular clamping groove is formed in the middle of the bottom of the circular groove, a circular inlet is formed in the middle bottom of the circular clamping groove, a circular outlet is formed in one side, close to the lower end, of the inside of the circular groove, the valve sleeve is installed in the circular groove of the valve block, the lower end of the valve sleeve is clamped in the circular clamping groove, the upper end of the valve sleeve is embedded in the circular groove, the middle position outside the valve sleeve is designed into an annular step, a plurality of through holes are designed around the position of the annular step of the valve sleeve, a cylindrical groove is formed in the middle of the valve sleeve, a flow channel hole is formed in the bottom of the cylindrical groove, an inner annular conical surface transition surface is further designed between the upper end of the cylindrical groove, and the valve core is installed in the cylindrical groove, and the outer annular surface of the lower end of the valve core is in sealing fit with the inner annular transition conical surface; the peripheral surface of the outer side of the valve core is in sliding sealing fit with the cylindrical groove of the valve sleeve; the spring is arranged in the circular groove of the valve core, the control cover plate is sealed on the valve block, the upper end of the spring is propped against the lower end of the control cover plate, and the upper end of the control cover plate is provided with the pilot control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221000604.2U CN217582655U (en) | 2022-04-28 | 2022-04-28 | Novel valve core of overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221000604.2U CN217582655U (en) | 2022-04-28 | 2022-04-28 | Novel valve core of overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217582655U true CN217582655U (en) | 2022-10-14 |
Family
ID=83548320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221000604.2U Active CN217582655U (en) | 2022-04-28 | 2022-04-28 | Novel valve core of overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217582655U (en) |
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2022
- 2022-04-28 CN CN202221000604.2U patent/CN217582655U/en active Active
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