CN111271330A - Direct-acting electric control one-way valve - Google Patents
Direct-acting electric control one-way valve Download PDFInfo
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- CN111271330A CN111271330A CN202010068980.4A CN202010068980A CN111271330A CN 111271330 A CN111271330 A CN 111271330A CN 202010068980 A CN202010068980 A CN 202010068980A CN 111271330 A CN111271330 A CN 111271330A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a direct-acting electric control one-way valve which comprises a valve body, a forward one-way valve assembly and a reverse valve assembly, wherein the forward one-way valve assembly and the reverse valve assembly are arranged in the valve body, a left overflowing channel and a right overflowing channel which are approximately parallel are vertically arranged at the lower end of the valve body, the left overflowing channel and the right overflowing channel are communicated through a forward flow channel and a reverse flow channel which extend in the left-right direction, the forward flow channel is positioned below the reverse flow channel, a forward one-way valve core is arranged in the forward flow channel to enable liquid to flow in a one-way mode from the left overflowing channel to the right overflowing channel side in the forward flow channel, and the reverse valve core is. The forward one-way valve assembly and the reverse valve assembly form a parallel structure, and the one-way valve can be controlled to be opened reversely through the parallel valve core structure; the structure is convenient to control, simple in structure, applicable to various hydraulic transmission operation conditions and wide in application range.
Description
Technical Field
The invention relates to the technical field of hydraulic transmission, in particular to a direct-acting type electric control one-way valve.
Background
Check valves, also known as check valves or back valves, are used in hydraulic systems to prevent reverse flow of oil or in pneumatic systems to prevent reverse flow of compressed air. At present, the one-way valve only basically realizes the effect of forward conduction and reverse closing, but in a hydraulic transmission system, the operation working condition is complex, the effect of forward conduction and reverse closing is required to be realized in some operation working conditions in a hydraulic transmission path, and reverse conduction is required to be realized in some operation working conditions, namely the one-way valve reversely needs to realize the controllable operation of conduction and closing, and the common one-way valve in the working condition has single effect and cannot be used;
therefore, a direct-acting electric control one-way valve is needed, which can realize controllable reverse conduction and is suitable for various hydraulic transmission operation conditions.
Disclosure of Invention
In view of this, the present invention provides a direct-acting electric control check valve, which can realize controllable reverse conduction and is suitable for various hydraulic transmission operation conditions.
The direct-acting electric control one-way valve comprises a valve body, a forward one-way valve component and a reverse valve component, wherein the forward one-way valve component and the reverse valve component are arranged in the valve body, the lower end of the valve body is vertically provided with a left overflowing channel and a right overflowing channel which are approximately parallel, the left overflowing channel and the right overflowing channel are communicated through a forward flow channel and a reverse flow channel which extend in the left-right direction, the forward flow channel is positioned below the reverse flow channel, a forward one-way valve core is arranged in the forward flow channel to enable liquid to flow in a one-way mode from the left overflowing channel to the right overflowing channel side in the forward flow channel, and the reverse valve core is.
Further, an annular sealing table formed by protrusions is arranged in the reverse flow channel, the reverse valve assembly comprises a valve rod penetrating the reverse flow channel, a reverse valve core connected to the middle of the valve rod and used for sealing the sealing table, a valve core push rod connected to the left end of the valve rod, an electromagnet connected to the valve body and used for controlling the valve core push rod to slide left and right, and a reverse elastic piece, the reverse valve core is located on the right side of the sealing table, the reverse valve core is of a conical table structure with a small left end and a large right end, and the reverse elastic piece is installed in the reverse flow channel and has elastic force enabling the reverse valve body to be pressed on the sealing table left to close the reverse flow.
Furthermore, the reverse flow passage penetrates through the left end of the valve body, the electromagnet is installed at the left end of the valve body, the valve core push rod is in sliding sealing fit with the left end part of the reverse flow passage, and the valve core push rod penetrates out of the left end of the reverse flow passage to be matched with the electromagnet.
Further, the reverse flow passage runs through the right end of the valve body, a reverse valve cover is arranged on the right end sealing cover of the reverse flow passage, a guide hole is formed in the middle of the reverse valve cover, the left end of the valve core push rod is in sealing sliding fit with the guide hole, and a dustproof cover sealed at the right end of the guide hole is arranged on the right end sealing cover of the reverse valve cover.
Further, a seal is formed between the excircle of the reverse valve cover and the inner circle of the right end of the reverse flow channel through a seal ring I.
Furthermore, two ends of the reverse elastic part are connected between the right end of the reverse valve core and the left end of the valve cover.
Further, a seal is formed between the valve rod and the inner circle of the guide hole through a seal ring II.
Further, the forward flow channel passes the right side rightwards and overflows the passageway and link up in the valve body right-hand member, forward check valve subassembly includes sliding mounting in forward flow channel forward case and forward elastic component, forward elastic component installs in forward flow channel and has and makes forward case slide tendency left for forward case left end seals in the opening part that the forward flow channel formed on the right side of overflowing the passageway, the forward case is corresponding to the position that the passageway was overflowed on the right side and is seted up the discharge orifice that extends from top to bottom, the sealed lid of forward flow channel right-hand member has forward valve gap.
Furthermore, the forward valve core is of a hollow structure with an opening at the right end, the forward elastic part is positioned in the inner cavity of the forward valve core and is connected to the left end of the inner cavity of the forward valve core and the left end of the forward valve cover, and the left end of the forward valve core is of a conical table structure with a small left end and a large right end.
Further, a seal is formed between the forward valve cover and the inner circle of the right overflowing channel through a seal ring III.
The invention has the beneficial effects that:
the forward one-way valve assembly and the reverse valve assembly form a parallel structure, and the one-way valve can be controlled to be opened reversely through the parallel valve core structure; the structure is convenient to control, simple in structure, applicable to various hydraulic transmission operation conditions and wide in application range.
The valve core push rod of the invention can control the reverse opening of the one-way valve through the small-power electromagnet under the driving action of the electromagnet, the reverse valve component adopts a frustum structure with a guide rod without reverse oil acting force, and the electromagnetic control reverse valve with a parallel structure realizes that the electromagnet directly pushes the one-way valve to reversely open, is not influenced by hydraulic pressure fluctuation, has reliable work, convenient control, stable opening and closing of the reverse valve core and low valve body cost.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of an oil path when the direct-acting electric control check valve of the present invention is opened in a forward direction;
FIG. 3 is a schematic diagram of an oil path when the direct-acting electric control check valve is reversely opened according to the present invention;
Detailed Description
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic diagram of an oil path when the direct-acting electric control check valve of the present invention is opened in a forward direction; FIG. 3 is a schematic diagram of an oil path when the direct-acting electric control check valve is reversely opened according to the present invention;
in this embodiment, the up, down, left, and right directions are the same as the directions of fig. 1;
as shown in the figures, the direct-acting electric control check valve in the embodiment comprises a valve body 1, a forward check valve assembly and a reverse check valve assembly, wherein the forward check valve assembly and the reverse check valve assembly are installed in the valve body, a left overflow channel 2 and a right overflow channel 3 which are approximately parallel are vertically arranged at the lower end of the valve body, the left overflow channel and the right overflow channel are communicated through a forward flow channel 4 and a reverse flow channel 5 which extend in the left-right direction, the forward flow channel is located below the reverse flow channel, a forward check valve core is installed in the forward flow channel to enable liquid to flow in a one-way mode from the left overflow channel to the right overflow channel in the forward flow channel, and the reverse valve core is installed.
Referring to fig. 1 to 3, an opening corresponding to the left flow passage at the bottom of the valve body is an opening a, an opening corresponding to the right flow passage at the bottom of the valve body is an opening B, a fluid flows from the opening a to the opening B in a forward direction, and a fluid flows from the opening B to the opening a in a reverse direction; the forward one-way valve component can be a common one-way valve structure and has the function of enabling the fluid in the forward flow channel 4 to flow only in the forward direction and not to flow in the reverse direction; the reversing valve component is of a controllable valve body structure, the on-off of the reversing flow channel 5 can be controlled by controlling the opening and closing of the reversing valve component, and the reversing valve component can be controlled manually or electrically; referring to fig. 2, when a fluid flows in a forward direction, a high-pressure fluid applies pressure to the forward check valve assembly, the pressure automatically opens when reaching an opening threshold of the forward check valve assembly, the reverse valve assembly is controlled to close, and the fluid forms a forward flow path through the opening a, the forward flow passage and the opening B, referring to fig. 3, when the fluid flows in a reverse direction, the forward check valve assembly automatically closes, the opening and closing of the reverse valve assembly can be controlled to control whether the fluid flows in the reverse direction, when the reverse valve assembly closes, the fluid cannot flow through the reverse flow passage, and the fluid cannot flow in the reverse direction, and when the reverse valve assembly opens, the fluid forms a reverse flow path through the opening B, the reverse flow passage and the opening a; the forward one-way valve component and the reverse valve component form a parallel structure, and the one-way valve can be controlled to be opened reversely through the parallel valve core structure; the structure is convenient to control, simple in structure, applicable to various hydraulic transmission operation conditions and wide in application range.
In this embodiment, an annular sealing table 6 formed by a protrusion is arranged in the reverse flow passage, the reverse valve assembly includes a valve rod 7 penetrating through the reverse flow passage, a reverse valve element 8 connected to the middle of the valve rod and used for sealing the sealing table, a valve element push rod 9 connected to the left end of the valve rod, an electromagnet 10 connected to the valve body and used for controlling the valve element push rod to slide left and right, and a reverse elastic member 11, the reverse valve element is located on the right side of the sealing table, the reverse valve element is of a conical table structure with a small left end and a large right end, and the reverse elastic member is installed in the reverse flow passage and has an elastic force enabling the reverse valve body to be pressed on the sealing table left. The diameter of the small-diameter end of the reverse valve core is smaller than the diameter of the inner circle of the sealing table, and the diameter of the large-diameter end of the reverse valve core is larger than the diameter of the inner circle of the sealing table, so that the conical surface of the reverse valve core is sealed on the right side of the conical table, and in order to be adaptive to the structure of the reverse valve core, the right end part of the inner circle of the conical table can be set into a conical hole structure adaptive to the reverse valve core, and the sealing effect is improved through the matching of the conical table and; as shown in fig. 1, the reverse valve core and the valve rod are integrally formed, wherein the diameter of the valve rod section positioned on the right side of the reverse valve core is equal to the inner diameter of the sealing table, the diameter of the valve rod section positioned on the left side of the reverse valve core is smaller than the inner diameter of the sealing table, the diameter of the valve rod section positioned on the right side of the reverse valve core is slightly larger than the diameter of the valve rod section positioned on the left side of the reverse valve core, and the structure enables forces of oil acting on two sides of the conical table to be approximately; the electromagnet is a device which is electrified to generate electromagnetism, a conductive winding matched with the power of the electromagnet is wound outside the iron core, and the electromagnet is usually arranged in a strip shape or a horseshoe shape so as to enable the iron core to be magnetized more easily; when the coil is powered on, the electromagnet is magnetized, when the coil is powered off, the electromagnet is demagnetized, the valve core push rod can be a magnetic rod which is the same as the electromagnet, the electromagnet is fixedly connected to the left end of the valve body and is matched with the valve core push rod for use, when the electromagnet is powered on, the valve core push rod is pushed to axially slide rightwards to open the reverse flow channel, when the electromagnet is powered off, the valve rod is pushed by the reverse elastic piece to move leftwards for resetting, of course, the valve core push rod can also be a magnetic rod which is different from the electromagnet or be magnetic metal, and the valve core push rod is adsorbed; in this embodiment, the reverse elastic member is a cylindrical coil spring, which may also be an elastic structure such as a disc spring or a wave spring, and preferably a high-stiffness spring for pressing the reverse valve element against the sealing table to close the reverse flow channel in a normal state; the valve core push rod controls the reverse opening of the check valve through the electromagnet under the driving action of the electromagnet, the reverse valve component adopts a frustum structure with a guide rod without reverse oil acting force, and the electric control reverse valve with a parallel structure realizes that the electromagnet directly pushes the check valve to reversely open, is not influenced by hydraulic pressure fluctuation, and has the advantages of reliable work, convenient control, stable opening and closing of the reverse valve core and low valve body cost.
In this embodiment, the reverse flow channel penetrates through the left end of the valve body, the electromagnet 10 is installed at the left end of the valve body, the valve core push rod is in sliding sealing fit with the left end portion of the reverse flow channel, and the valve core push rod penetrates through the left end of the reverse flow channel to be matched with the electromagnet. As shown in a combined figure 1, the left end of the valve rod is coaxially arranged with the valve core push rod, the left end of the valve rod is fixedly connected with the right end of the valve core push rod, a guide sleeve 20 is arranged at an opening at the left end of the reverse flow channel, the guide sleeve is in sealing fit with the left end of the reverse flow channel, the valve core push rod is sleeved in the guide sleeve in a sliding sealing manner, the inner circle of the guide sleeve is sealed with the outer circle of the valve core push rod through a sealing ring IV 21, the outer circle of the guide sleeve is sealed with the inner circle of the left end of the reverse flow channel through a sealing ring V22.
In this embodiment, the reverse flow passage runs through the right end of the valve body, the reverse flow passage right end sealing cover is provided with a reverse valve cover 12, the middle part of the reverse valve cover is provided with a guide hole, the left end of the valve core push rod is in sealing sliding fit with the guide hole, and the reverse valve cover right end sealing cover is provided with a dust cover 13 sealed at the right end of the guide hole. In the embodiment, the reverse valve cover is provided with an external thread structure, the inner circle of the right end of the reverse flow passage is of an internal thread structure, the reverse valve cover is in threaded sealing connection with the right end of the reverse flow passage, and the dustproof cover can be in threaded sealing connection with the right end of the reverse valve cover and is used for preventing dust and preventing liquid in the valve body from leaking; the structure is beneficial to opening the right end of the reverse flow passage, and is convenient for assembling and maintaining the internal reverse valve component.
In this embodiment, a seal is formed between the reverse valve cover outer circle and the reverse runner right end inner circle through a seal ring I14. As shown in the combined drawing 1, the right end of the reverse flow channel is of a stepped hole structure with a small inner part and a large outer part, the sealing ring I is filled in the small diameter hole of the end part, the left end of the reverse valve cover is axially pressed on the sealing ring I to form sealing between the reverse valve cover outer circle and the reverse flow channel right end inner circle, and the reverse valve cover outer circle is in double sealing through threaded connection and the sealing ring I to improve the sealing effect.
In this embodiment, two ends of the reverse elastic member are connected between the right end of the reverse valve core and the left end of the valve cover. The reverse elastic part is a cylindrical spiral spring, the reverse valve is sleeved on the valve rod, good support is provided for the reverse elastic part through the reverse valve cover, meanwhile, the compression force of the reverse elastic part can be adjusted by changing the specification of the reverse valve cover, the pressing force of the reverse elastic part can be conveniently adjusted, and the installation, maintenance and replacement of internal parts can be conveniently realized by opening the reverse valve cover.
In this embodiment, the valve rod and the inner circle of the guide hole are sealed through a sealing ring II 15. Combine figure 1 to show, the annular seal groove has been seted up to the circle in the reverse valve gap, and sealing ring II is embedded to be used for forming sealedly between the circle in this annular seal groove to valve rod excircle and reverse valve gap, but sealing ring II axial sets up the multiunit to improve its sealed effect, specifically do not give unnecessary details.
In this embodiment, forward flow channel 4 passes the right side and overflows the passageway and link up in the valve body right-hand member, forward check valve subassembly includes slide mounting in forward flow channel forward case 16 and forward elastic component 17, forward elastic component installs in forward flow channel and has and makes forward case slide tendency to the left for forward case left end is sealed in the opening part that forward flow channel formed on the right side of overflowing the passageway, forward case is seted up the discharge orifice that extends from top to bottom corresponding to the position that the passageway was overflowed to the right side, the sealed lid of forward flow channel right-hand member has forward valve gap 18. The positive elastic part is a cylindrical bolt spring, the spring stiffness of the positive elastic part is small, and the positive elastic part is only used for resetting the positive valve core; installation and maintenance of the forward valve assembly is facilitated by opening the forward valve cover.
In this embodiment, the forward valve element is a hollow structure with an opening at the right end, the forward elastic element is located in the inner cavity of the forward valve element and connected to the left end of the inner cavity of the forward valve element and the left end of the forward valve cover, and the left end of the forward valve element is a tapered platform structure with a small left end and a large right end. The opening formed by the forward flow channel on the left side of the right overflowing channel can be in a tapered hole structure matched with the forward valve core, the hollow structure of the forward valve core is convenient for installation of the forward elastic part, and the structure is compact.
In the embodiment, a seal is formed between the forward valve cover 18 and the inner circle of the right overflowing channel through a seal ring III 19. Fig. 2 and 3 show that the arrow direction is a fluid flow direction, and as shown in fig. 2, when the direct-acting type electric control one-way valve needs to flow from the opening a to the opening B in a forward direction, high-pressure oil enters the left overflow channel from the opening a, the high-pressure oil is pressed on the forward valve core, the valve core is automatically opened when the pressure reaches the opening threshold of the forward one-way valve assembly, the electromagnet is powered off, the electromagnet is demagnetized, the reverse valve core is pushed to move to the left under the elastic force of the elastic member of the reverse valve body, the reverse valve assembly is closed, the reverse flow channel is closed, and at this time, the fluid can only flow from; as shown in fig. 3, when the direct-acting electrically controlled check valve needs to reversely flow from the opening B to the opening a, high-pressure oil enters the right overflow channel 3 from the opening B, the high-pressure oil presses the forward valve core 16 against the valve body to close the forward flow channel 4, the electromagnet is energized, the valve core push rod pushes the reverse valve core to move right under the action of electromagnetic force, the reverse valve assembly is opened, and the high-pressure oil flows out from the opening a through the reverse flow channel 5.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. A direct-acting electric control one-way valve is characterized in that: including the valve body, install forward check valve subassembly and the backward valve subassembly in the valve body, the valve body lower extreme is vertical to be seted up approximate parallel left side and to be flowed through the passageway and the right side of overflowing, a left side is flowed through to forward runner and the backward runner intercommunication that extends about between the passageway and the right side of overflowing, the forward runner is located the backward runner below, and forward check valve core installs and makes liquid flow the passageway side unidirectional flow that overflows from a left side to the right side in the forward runner, backward valve core installs and is used for controlling opening and close of backward runner in the backward runner.
2. A direct-acting electrically controlled check valve as claimed in claim 1, wherein: the reverse flow passage is internally provided with an annular sealing table formed by bulges, the reverse valve component comprises a valve rod arranged in the reverse flow passage in a penetrating mode, a reverse valve core connected to the middle of the valve rod and used for sealing the sealing table, a valve core push rod connected to the left end of the valve rod, an electromagnet connected to the valve body and used for controlling the valve core push rod to slide left and right and a reverse elastic piece, the reverse valve core is located on the right side of the sealing table, the reverse valve core is of a conical table structure with a small left end and a large right end, and the reverse elastic piece is installed in the reverse flow passage and has elastic force enabling the reverse valve body to be pressed on the sealing table.
3. A direct-acting electrically controlled check valve as claimed in claim 2, wherein: the reverse flow passage penetrates through the left end of the valve body, the electromagnet is installed at the left end of the valve body, the valve core push rod is in sliding sealing fit with the left end portion of the reverse flow passage, and the valve core push rod penetrates out of the left end of the reverse flow passage to be matched with the electromagnet.
4. A direct-acting electrically controlled check valve according to claim 3, characterized in that: the reverse flow passage penetrates through the right end of the valve body, the reverse flow passage right end sealing cover is provided with a reverse valve cover, the middle part of the reverse valve cover is provided with a guide hole, the left end of the valve core push rod is in sealing sliding fit with the guide hole, and the reverse valve cover right end sealing cover is provided with a dustproof cover sealed at the right end of the guide hole.
5. A direct-acting electrically controlled check valve according to claim 4, characterized in that: and a seal is formed between the excircle of the reverse valve cover and the inner circle of the right end of the reverse flow passage through a seal ring I.
6. A direct-acting electrically controlled check valve according to claim 4, characterized in that: two ends of the reverse elastic part are connected between the right end of the reverse valve core and the left end of the valve cover.
7. A direct-acting electrically controlled check valve according to claim 4, characterized in that: and a seal is formed between the valve rod and the inner circle of the guide hole through a seal ring II.
8. A direct-acting electrically controlled check valve as claimed in claim 1, wherein: the forward flow channel passes the right side right and overflows the passageway and link up in the valve body right-hand member, forward check valve subassembly includes positive case and the forward elastic component of slidable mounting in the forward flow channel, the forward elastic component is installed in the forward flow channel and has and makes the forward case slide trend left for the opening part that the forward flow channel formed on the right side of overflowing the passageway is sealed to the forward case left end, the forward case is corresponding to the position that the passageway was overflowed on the right side and is seted up the discharge orifice that extends from top to bottom, the sealed lid of forward flow channel right-hand member has forward valve gap.
9. A direct-acting electrically controlled check valve according to claim 8, characterized in that: the positive valve core is of a hollow structure with an opening at the right end, the positive elastic piece is positioned in the inner cavity of the positive valve core and connected to the left end of the inner cavity of the positive valve core and the left end of the positive valve cover, and the left end of the positive valve core is of a conical table structure with a small left end and a large right end.
10. A direct-acting electrically controlled check valve according to claim 8, characterized in that: and a seal is formed between the forward valve cover and the inner circle of the right overflowing channel through a seal ring III.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068980.4A CN111271330A (en) | 2020-01-21 | 2020-01-21 | Direct-acting electric control one-way valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010068980.4A CN111271330A (en) | 2020-01-21 | 2020-01-21 | Direct-acting electric control one-way valve |
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| CN111271330A true CN111271330A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010068980.4A Pending CN111271330A (en) | 2020-01-21 | 2020-01-21 | Direct-acting electric control one-way valve |
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| CN (1) | CN111271330A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664267A (en) * | 2020-06-16 | 2020-09-15 | 杭州依技设备成套工程有限公司 | Gas differential pressure automatic switching valve |
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Application publication date: 20200612 |
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| RJ01 | Rejection of invention patent application after publication |