CN111577694A - Manual reversing valve capable of being adjusted in multiple directions - Google Patents
Manual reversing valve capable of being adjusted in multiple directions Download PDFInfo
- Publication number
- CN111577694A CN111577694A CN202010398876.1A CN202010398876A CN111577694A CN 111577694 A CN111577694 A CN 111577694A CN 202010398876 A CN202010398876 A CN 202010398876A CN 111577694 A CN111577694 A CN 111577694A
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- Prior art keywords
- valve
- limiting
- spring
- rod
- groove
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Classifications
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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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a manual reversing valve capable of being adjusted in multiple directions, which comprises a valve body, wherein a valve core is arranged in the valve body, one end of the valve core is provided with a connecting column, the connecting column is positioned at one end of the valve body, one end of the valve body is provided with a supporting block, the supporting block is positioned at the top end of the connecting column, one side of the top end of the supporting block is provided with a movable groove, the movable groove penetrates through the supporting block, a valve rod is arranged in the movable groove, the valve rod penetrates through the movable groove and the connecting column, one side of the inside of the valve core is provided with all second mounting grooves, one side of the supporting block is provided with a first pull ring, the inner side of the first pull ring is provided with a limiting block; through install the stopper additional in bull stick one end, avoided under the unexpected atress condition of valve rod, lead to the manual reversing valve to open unusually or close, further promoted manual reversing valve stability in use.
Description
Technical Field
The invention belongs to the technical field of reversing valves, and particularly relates to a manual reversing valve capable of being adjusted in multiple directions.
Background
The multi-guide adjustment manual reversing valve is a directional control valve with more than two flow forms and more than two oil ports, and is a valve for realizing communication, cutting off and reversing of hydraulic oil flow, pressure unloading and sequential action control. In hydraulic control systems, a multi-directional manual directional control valve is often used to manually control the flow direction of hydraulic oil. The valve rod in the existing manual reversing valve is lack of protection, when the valve rod is accidentally impacted, the manual reversing valve is abnormally opened or closed, and the problem that the stability of the manual reversing valve is poor is solved.
Disclosure of Invention
The invention aims to provide a manual reversing valve capable of being adjusted in multiple directions, and aims to solve the problems that a valve rod in the conventional manual reversing valve is short of protection, and when the valve rod is accidentally impacted, the manual reversing valve is abnormally opened or closed, so that the manual reversing valve is poor in use stability.
In order to achieve the purpose, the invention provides the following technical scheme: a manual reversing valve capable of being adjusted in multiple directions comprises a valve body, wherein a valve core is arranged inside the valve body, a connecting column is arranged at one end of the valve core, the connecting column is positioned at one end of the valve body, a supporting block is arranged at one end of the valve body, a movable groove is formed in one side of the top end of the supporting block and penetrates through the supporting block, a valve rod is arranged inside the movable groove and penetrates through the movable groove and the connecting column, all second mounting grooves are formed in one side of the inside of the valve core, a first pull ring is arranged on one side of the supporting block, a limiting block is arranged on the inner side of the first pull ring, a rotating rod is arranged at one end of the limiting block, a third spring is arranged at one end of the rotating rod, a limiting groove is formed in one side of the valve rod, the, and one end of the rotating rod and the third spring are both positioned in the second mounting groove.
Preferably, the supporting shoe top is provided with the go-between, the go-between is located activity groove one side, the go-between outside is provided with the installation cover, inside fourth spring and the spacing ring of being provided with respectively of installation cover, the fourth spring is located the installation cover top, the installation cover top is provided with the second pull ring, be provided with the gag lever post in the middle of the second pull ring bottom, the gag lever post runs through fourth spring, spacing ring and supporting shoe, the spacing groove is seted up on stopper top surface, the gag lever post bottom is located the limiting inslot portion.
Preferably, the valve body other end is provided with access cover and second collar respectively, the access cover is located the second collar inboard, the access cover outside is provided with first collar, first collar is located second collar one side, first collar is provided with the adapter sleeve with the second collar junction outside, the second collar passes through screw thread and adapter sleeve fixed connection.
Preferably, an oil tank pipe opening is formed in the surface of the top end of the valve body, an oil cylinder pipe opening is formed in the surface of the bottom end of the valve body, and oil holes are formed in the surfaces of two sides of the valve core.
Preferably, a first mounting groove is formed in the inner side surface of the access cover, a first spring clamping plate and a second spring clamping plate are arranged in the first mounting groove respectively, the first spring clamping plate and the second spring clamping plate are symmetrically distributed, a first spring is arranged between the first spring clamping plate and the second spring clamping plate, and the other end of the valve core penetrates through the first spring clamping plate and the second spring clamping plate.
Preferably, the connecting column is fixedly connected with the valve core, the supporting block is fixedly connected with the valve body, the limiting block is fixedly connected with the first pull ring and the rotating rod, one end of the third spring is fixedly connected with the supporting block through the second mounting groove, and the other end of the third spring is fixedly connected with the rotating rod.
Preferably, the cross section of the limiting groove and the cross section of the limiting block are both regular hexagons, and the limiting block is clamped with the valve rod through the limiting groove.
Preferably, the connecting ring is fixedly connected with the supporting block, the mounting sleeve is fixedly connected with the connecting ring through threads, the limiting rod is fixedly connected with the limiting ring and the second pull ring, the limiting rod is clamped with the limiting block through a limiting groove, and the cross sections of the bottom end of the limiting rod and the limiting groove are both right trapezoid.
Preferably, a sealing ring is arranged between the access cover and the valve body, and the access cover is connected with the valve body in a sealing mode through the sealing ring.
Preferably, a holding rod is arranged on the outer side of the connecting sleeve, one end of the holding rod is located inside the connecting sleeve, and the holding rod is fixedly connected with the connecting sleeve through threads.
Compared with the prior art, the invention has the beneficial effects that:
(1) through installing the stopper additional in bull stick one end, when needs carry on spacingly to the valve rod, press first pull ring, drive stopper one end by first pull ring and move toward the spacing inslot portion, the stopper drives the bull stick and moves, gets into the spacing inslot portion when stopper one end, accomplishes the spacing to the valve rod, has avoided under the unexpected atress condition of valve rod, leads to the manual reversing valve to open unusually or close, has further promoted manual reversing valve stability in use.
(2) Through install the gag lever post additional on supporting shoe top one side, when the gag lever post removed, it removes to drive the limited groove by the stopper, when the gag lever post with inject the groove contact, this moment under fourth spring elastic action, drive the spacing ring by the fourth spring and reset, the spacing ring drives the gag lever post and moves down for the gag lever post bottom gets into the limited inslot portion, the completion is fixed to the stopper, the firm in connection degree of stopper and supporting shoe has been promoted, the firm in connection degree of stopper and spacing groove has further been promoted.
(3) Through install the adapter sleeve additional in first collar and second collar junction outside, when needing to overhaul many direction adjustment manual reversing valves, rotate the holding rod, it rotates to drive the adapter sleeve by the holding rod, the adapter sleeve is constantly moved toward first collar one side under the screw thread effect, until adapter sleeve and second collar complete separation, then remove the access cover, and with access cover and valve body separation, accomplish the dismantlement to the access cover, made things convenient for the staff to dismantle the access cover, the staff has been convenient for has maintained many direction adjustment manual reversing valves.
Drawings
FIG. 1 is a schematic cross-sectional view of a multiple directional adjustment manual directional control valve of the present invention;
FIG. 2 is an enlarged view of a portion a of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the support block of the present invention;
FIG. 4 is an enlarged view of the structure at c in FIG. 3;
FIG. 5 is an enlarged view of the structure at d in FIG. 3;
FIG. 6 is an enlarged view of the structure at b in FIG. 1;
in the figure: 1. connecting columns; 2. a valve body; 3. an access cover; 311. a seal ring; 4. a valve core; 5. an oil hole; 6. an opening of the oil tank pipe; 7. opening an oil cylinder pipe; 8. a support block; 9. a valve stem; 10. a first mounting groove; 11. a first spring catch plate; 12. a second spring catch plate; 13. a first spring; 14. a movable groove; 15. a rotating rod; 16. a limiting block; 17. a limiting groove; 18. a second mounting groove; 19. a third spring; 20. a first pull ring; 21. a second tab; 22. a limiting rod; 23. a limiting ring; 24. a fourth spring; 25. installing a sleeve; 26. a connecting ring; 27. defining a slot; 28. a first mounting ring; 29. a second mounting ring; 30. connecting sleeves; 31. a holding rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a manual reversing valve capable of being adjusted in multiple directions comprises a valve body 2, a valve core 4 is arranged inside the valve body 2, one end of the valve core 4 is provided with a connecting column 1, the connecting column 1 is positioned at one end of the valve body 2, one end of the valve body 2 is provided with a supporting block 8, the supporting block 8 is positioned at the top end of the connecting column 1, one side of the top end of the supporting block 8 is provided with a movable groove 14, the movable groove 14 penetrates through the supporting block 8, a valve rod 9 is arranged inside the movable groove 14, the valve rod 9 penetrates through the movable groove 14 and the connecting column 1, one side inside the valve core 4 is provided with all second mounting grooves 18, one side of the supporting block 8 is provided with a first pull ring 20, the inner side of the first pull ring 20 is provided with a limiting block 16, one end of the limiting block 16 is provided with a rotating rod 15, one end of the, one end of the rotating rod 15 and the third spring 19 are both positioned inside the second mounting groove 18.
In order to further reinforce the limiting block 16, in this embodiment, preferably, the top end of the supporting block 8 is provided with a connecting ring 26, the connecting ring 26 is located on one side of the movable groove 14, an installation sleeve 25 is arranged on the outer side of the connecting ring 26, a fourth spring 24 and a limiting ring 23 are respectively arranged inside the installation sleeve 25, the fourth spring 24 is located on the top end of the installation sleeve 25, a second pull ring 21 is arranged on the top end of the installation sleeve 25, a limiting rod 22 is arranged in the middle of the bottom end of the second pull ring 21, the limiting rod 22 penetrates through the fourth spring 24, the limiting ring 23 and the supporting block 8, a limiting groove 27 is formed in the top end surface of the limiting block.
In order to facilitate the maintenance of the multi-guide adjustment manual reversing valve, in this embodiment, preferably, the other end of the valve body 2 is provided with an access cover 3 and a second mounting ring 29, the access cover 3 is located inside the second mounting ring 29, a first mounting ring 28 is arranged outside the access cover 3, the first mounting ring 28 is located on one side of the second mounting ring 29, a connecting sleeve 30 is arranged outside a joint of the first mounting ring 28 and the second mounting ring 29, and the second mounting ring 29 is fixedly connected with the connecting sleeve 30 through a thread.
In order to facilitate the hydraulic oil to pass through the valve core 4, in this embodiment, preferably, the top end surface of the valve body 2 is provided with an oil tank pipe opening 6, the bottom end surface of the valve body 2 is provided with an oil cylinder pipe opening 7, and the surfaces of two sides of the valve core 4 are both provided with oil holes 5.
In order to facilitate the resetting of the valve core 4, in this embodiment, preferably, the inside surface of the access cover 3 is provided with a first mounting groove 10, a first spring catch plate 11 and a second spring catch plate 12 are respectively arranged inside the first mounting groove 10, the first spring catch plate 11 and the second spring catch plate 12 are symmetrically distributed, a first spring 13 is arranged between the first spring catch plate 11 and the second spring catch plate 12, and the other end of the valve core 4 penetrates through the first spring catch plate 11 and the second spring catch plate 12.
In order to facilitate resetting of the limiting block 16, in this embodiment, preferably, the connecting column 1 is fixedly connected with the valve core 4, the supporting block 8 is fixedly connected with the valve body 2, the limiting block 16 is fixedly connected with the first pull ring 20 and the rotating rod 15, one end of the third spring 19 is fixedly connected with the supporting block 8 through the second mounting groove 18, and the other end of the third spring 19 is fixedly connected with the rotating rod 15.
In order to facilitate the limiting block 16 to clamp the valve rod 9, in this embodiment, preferably, the cross sections of the limiting groove 17 and the limiting block 16 are both regular hexagons, and the limiting block 16 is clamped with the valve rod 9 through the limiting groove 17.
In order to facilitate the limiting rod 22 to clamp the limiting block 16, in this embodiment, preferably, the connecting ring 26 is fixedly connected with the supporting block 8, the mounting sleeve 25 is fixedly connected with the connecting ring 26 through threads, the limiting rod 22 is fixedly connected with the limiting ring 23 and the second pull ring 21, the limiting rod 22 is clamped with the limiting block 16 through the limiting groove 27, and the cross section of the bottom end of the limiting rod 22 and the cross section of the limiting groove 27 are both right-angled trapezoids.
In order to improve the connection sealing performance between the access cover 3 and the valve body 2, in this embodiment, it is preferable that a sealing ring 311 is disposed between the access cover 3 and the valve body 2, and the access cover 3 is connected to the valve body 2 in a sealing manner through the sealing ring 311.
In order to facilitate the detachment of the holding rod 31, in this embodiment, it is preferable that the holding rod 31 is disposed outside the connecting sleeve 30, one end of the holding rod 31 is located inside the connecting sleeve 30, and the holding rod 31 is fixedly connected to the connecting sleeve 30 through a thread.
The working principle and the using process of the invention are as follows: after the device is completed, by additionally arranging the limiting block 16 at one end of the rotating rod 15, when the valve rod 9 is required to be limited, the first pull ring 20 is pressed, the first pull ring 20 drives one end of the limiting block 16 to move towards the inside of the limiting groove 17, the limiting block 16 drives the rotating rod 15 to move, when one end of the limiting block 16 enters the limiting groove 17, the limitation on the valve rod 9 is completed, the abnormal opening or closing of the manual reversing valve caused by the accidental stress condition of the valve rod 9 is avoided, the use stability of the manual reversing valve is further improved, by additionally arranging the limiting rod 22 at one side of the top end of the supporting block 8, the limiting block 16 drives the limiting groove 27 to move while the limiting block 16 moves, when the limiting rod 22 is in contact with the limiting groove 27, the limiting ring 23 is driven to reset by the fourth spring 24 under the elastic action of the fourth spring 24, the limiting ring 23 drives the limiting rod 22 to move downwards, so that the bottom end of the limiting rod, accomplish the fixed to stopper 16, the firm in connection degree of stopper 16 and supporting shoe 8 has been promoted, the firm in connection degree of stopper 16 and spacing groove 17 has further been promoted, through install adapter sleeve 30 additional in first collar 28 and second collar 29 junction outside, when needing to overhaul many guide adjustment manual switching-over valves, rotate holding rod 31, drive adapter sleeve 30 by holding rod 31 and rotate, adapter sleeve 30 constantly moves toward first collar 28 one side under the screw thread effect, until adapter sleeve 30 and second collar 29 separate completely, then remove access cover 3, and will access cover 3 and valve body 2 separation, accomplish the dismantlement to access cover 3, it dismantles access cover 3 to have made things convenient for the staff, be convenient for the staff to maintain many guide adjustment manual switching-over valves.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A manual reversing valve capable of being adjusted in multiple directions comprises a valve body (2), and is characterized in that: the valve body (2) is internally provided with a valve core (4), one end of the valve core (4) is provided with a connecting column (1), the connecting column (1) is positioned at one end of the valve body (2), one end of the valve body (2) is provided with a supporting block (8), the supporting block (8) is positioned at the top end of the connecting column (1), one side of the top end of the supporting block (8) is provided with a movable groove (14), the movable groove (14) penetrates through the supporting block (8), a valve rod (9) is arranged inside the movable groove (14), the valve rod (9) penetrates through the movable groove (14) and the connecting column (1), one side inside the valve core (4) is provided with all second mounting grooves (18), one side of the supporting block (8) is provided with a first pull ring (20), the inner side of the first pull ring (20) is provided with, the improved structure is characterized in that a third spring (19) is arranged at one end of the rotating rod (15), a limiting groove (17) is formed in one side of the valve rod (9), the limiting block (16) penetrates through one side of the supporting block (8), one end of the limiting block (16) is located in the limiting groove (17), the rotating rod (15) penetrates through the valve rod (9), and one end of the rotating rod (15) and the third spring (19) are located in the second mounting groove (18).
2. A multi-directional adjustable manual directional control valve according to claim 1, further comprising: supporting shoe (8) top is provided with go-between (26), go-between (26) are located activity groove (14) one side, the go-between (26) outside is provided with installation cover (25), installation cover (25) inside is provided with fourth spring (24) and spacing ring (23) respectively, fourth spring (24) are located installation cover (25) top, installation cover (25) top is provided with second pull ring (21), be provided with gag lever post (22) in the middle of second pull ring (21) bottom, gag lever post (22) run through fourth spring (24), spacing ring (23) and supporting shoe (8), spacing block (16) top surface is seted up and is had spacing groove (27), gag lever post (22) bottom is located inside spacing groove (27).
3. A multi-directional adjustable manual directional control valve according to claim 1, further comprising: the valve body (2) other end is provided with access cover (3) and second collar (29) respectively, access cover (3) are located second collar (29) inboard, the access cover (3) outside is provided with first collar (28), first collar (28) are located second collar (29) one side, first collar (28) are provided with adapter sleeve (30) with second collar (29) junction outside, second collar (29) pass through screw and adapter sleeve (30) fixed connection.
4. A multi-directional adjustable manual directional control valve according to claim 1, further comprising: an oil tank pipe opening (6) is formed in the top end surface of the valve body (2), an oil cylinder pipe opening (7) is formed in the bottom end surface of the valve body (2), and oil holes (5) are formed in the surfaces of the two sides of the valve core (4).
5. A multi-directional adjustable manual directional control valve according to claim 3, wherein: the inner side surface of the access cover (3) is provided with a first mounting groove (10), a first spring clamping plate (11) and a second spring clamping plate (12) are arranged in the first mounting groove (10) respectively, the first spring clamping plate (11) and the second spring clamping plate (12) are symmetrically distributed, a first spring (13) is arranged between the first spring clamping plate (11) and the second spring clamping plate (12), and the other end of the valve core (4) penetrates through the first spring clamping plate (11) and the second spring clamping plate (12).
6. A multi-directional adjustable manual directional control valve according to claim 1, further comprising: the connecting column (1) is fixedly connected with the valve core (4), the supporting block (8) is fixedly connected with the valve body (2), the limiting block (16) is fixedly connected with the first pull ring (20) and the rotating rod (15), one end of the third spring (19) is fixedly connected with the supporting block (8) through the second mounting groove (18), and the other end of the third spring (19) is fixedly connected with the rotating rod (15).
7. A multi-directional adjustable manual directional control valve according to claim 1, further comprising: the cross section of the limiting groove (17) and the cross section of the limiting block (16) are both regular hexagons, and the limiting block (16) is clamped with the valve rod (9) through the limiting groove (17).
8. A multi-directional adjustable manual directional control valve according to claim 2, wherein: the connecting ring (26) is fixedly connected with the supporting block (8), the mounting sleeve (25) is fixedly connected with the connecting ring (26) through threads, the limiting rod (22) is fixedly connected with the limiting ring (23) and the second pull ring (21), the limiting rod (22) is clamped with the limiting block (16) through a limiting groove (27), and the cross sections of the bottom end of the limiting rod (22) and the limiting groove (27) are both right-angled trapezoids.
9. A multi-directional adjustable manual directional control valve according to claim 3, wherein: a sealing ring (311) is arranged between the access cover (3) and the valve body (2), and the access cover (3) is connected with the valve body (2) in a sealing mode through the sealing ring (311).
10. A multi-directional adjustable manual directional control valve according to claim 3, wherein: the outer side of the connecting sleeve (30) is provided with a holding rod (31), one end of the holding rod (31) is located inside the connecting sleeve (30), and the holding rod (31) is fixedly connected with the connecting sleeve (30) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398876.1A CN111577694B (en) | 2020-05-12 | 2020-05-12 | Manual reversing valve capable of being adjusted in multiple guiding mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398876.1A CN111577694B (en) | 2020-05-12 | 2020-05-12 | Manual reversing valve capable of being adjusted in multiple guiding mode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111577694A true CN111577694A (en) | 2020-08-25 |
| CN111577694B CN111577694B (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398876.1A Active CN111577694B (en) | 2020-05-12 | 2020-05-12 | Manual reversing valve capable of being adjusted in multiple guiding mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111577694B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757094U (en) * | 2010-08-18 | 2011-03-09 | 冯振强 | Hand-operated three-position four-way reversing valve |
| CN102678643A (en) * | 2012-04-25 | 2012-09-19 | 三一重型综采成套装备有限公司 | Hand-operated reversing valve and sealing structure thereof |
-
2020
- 2020-05-12 CN CN202010398876.1A patent/CN111577694B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757094U (en) * | 2010-08-18 | 2011-03-09 | 冯振强 | Hand-operated three-position four-way reversing valve |
| CN102678643A (en) * | 2012-04-25 | 2012-09-19 | 三一重型综采成套装备有限公司 | Hand-operated reversing valve and sealing structure thereof |
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| Publication number | Publication date |
|---|---|
| CN111577694B (en) | 2023-05-02 |
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