CN116292974B - Manual reversing valve with safety device - Google Patents
Manual reversing valve with safety device Download PDFInfo
- Publication number
- CN116292974B CN116292974B CN202310299520.6A CN202310299520A CN116292974B CN 116292974 B CN116292974 B CN 116292974B CN 202310299520 A CN202310299520 A CN 202310299520A CN 116292974 B CN116292974 B CN 116292974B
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- China
- Prior art keywords
- reversing valve
- rod
- safety device
- valve body
- valve rod
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 210000005077 saccule Anatomy 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 3
- 238000000034 method Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 33
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 210000003128 head Anatomy 0.000 description 4
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Classifications
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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
- F16K11/0704—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 comprising locking elements
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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
- F16K3/36—Features relating to lubrication
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The invention discloses a manual reversing valve with a safety device, which comprises a reversing valve body, wherein a valve core is slidably connected in the reversing valve body, the left end of the valve core is rotatably connected with a reversing valve rod, the left front side of the reversing valve body is provided with a mounting seat, the mounting seat penetrates through the reversing valve rod, and the reversing valve rod can rotate on the mounting seat; the left end part and the right end part of the valve core are elastically connected with the reversing valve body through reset springs; further comprises: the inner hexagonal adjusting screw is in threaded connection with the left end and the right end of the reversing valve body, and the outer side of the inner hexagonal adjusting screw is in threaded connection with an outer hexagonal sealing nut. The manual reversing valve with the safety device has the advantages that the two sides of the manual reversing valve adopt the structural mode with the safety device, when an emergency occurs, if the reset spring breaks, the valve core can still be adjusted to each machine position, so that the manual reversing valve can normally act, the use requirement is met, and the equipment and personal safety are ensured.
Description
Technical Field
The invention relates to the technical field of manual reversing valves, in particular to a manual reversing valve with a safety device.
Background
The 4WMM series manual reversing valve adopts a handle to push the valve core to move, the two ends of the valve core are centered by the springs, the valve core is kept in the middle position, and the position of the valve core is manually adjusted, so that the function of reversing flow of fluid is realized.
The manual reversing valve is characterized in that the hinge shaft is provided with two annular sealing grooves, sealing rings are sleeved on the annular grooves, and sealing slip rings are sleeved on the sealing rings. The main hole at one end of the valve body is a threaded hole which can be matched with the threaded connection electromagnet.
The valve core after moving is positioned by the spring seat in the prior art, but the structure depends on the elastic force action of the spring seat, and the valve core is directly forced to be separated from the spring seat to be clamped for position movement, so that the valve core is used for a long time, and the abrasion between the valve core and the spring seat is large, so that the service life of the reversing valve is influenced.
Another publication number CN105276225a is named a manual reversing valve, which consists of a valve body, a sealing component, a cam, a valve rod, a handle, a valve cover and other parts. The valve is driven by the handle, the valve rod and the cam are driven to rotate through the handle, and the cam has the functions of positioning, driving and locking the opening and closing of the sealing assembly. The handle rotates anticlockwise, the two groups of sealing assemblies respectively close the two channels at the lower end under the action of the cam, and the two channels at the upper end are respectively communicated with the inlet of the pipeline device. On the contrary, the two channels at the upper end are closed, and the two channels at the lower end are communicated with the inlet of the pipeline device, so that the reversing without stopping is realized. The upper end of the valve body is covered by a valve cover and is connected and fixed with the valve rod, a handle is arranged on the side edge of the valve cover, and the valve body is matched with the valve seat and is fixed by a screw. The invention has good sealing, easy and flexible opening and closing, long service life and simple structure.
The valve core is pushed to move by the handle in the prior art, the two ends of the valve core are centered by the springs, the valve core is kept in the middle position, after the valve core is used for a long time, after corrosion and abrasion of parts, the phenomena of spring breakage, valve core clamping, falling off of the handle ball head and the like are easy to occur, normal use of the reversing valve cannot be guaranteed, and equipment and personnel safety are seriously endangered.
Therefore, we propose a manual reversing valve with a safety device to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a manual reversing valve with a safety device, which aims to solve the problems that the normal use of the reversing valve cannot be ensured, and equipment and personnel safety are seriously endangered due to the fact that the normal use of the reversing valve cannot be ensured due to the fact that the valve core is directly forced to be separated from the spring seat to move by the action of elasticity of the spring seat, and the valve core is greatly worn out after long-term use, the service life of the reversing valve is influenced, and the phenomena of spring breaking, valve core clamping, handle ball head falling and the like are easily caused after parts are corroded and worn out after long-term use.
In order to achieve the above purpose, the present invention provides the following technical solutions: the manual reversing valve with the safety device comprises a reversing valve body, wherein a valve core is connected inside the reversing valve body in a sliding manner, the left end of the valve core is rotationally connected with a reversing valve rod, the left front side of the reversing valve body is provided with a mounting seat, the mounting seat penetrates through the reversing valve rod, and the reversing valve rod can rotate on the mounting seat;
the left end part and the right end part of the valve core are elastically connected with the reversing valve body through reset springs;
further comprises:
the inner hexagonal adjusting screw is in threaded connection with the left end and the right end of the reversing valve body, and the outer side of the inner hexagonal adjusting screw is in threaded connection with an outer hexagonal sealing nut;
the pressing plate is rotationally connected to the outer side of the upper end of the reversing valve rod, the rotating end of the pressing plate is elastically connected with the reversing valve rod through a vortex spring, the lower end of the pressing plate is connected with an extension rod, the other end of the extension rod is hinged with an adjusting rod, the other end of the adjusting rod at the front position is hinged with a moving rod, and the moving rod is in sliding connection with the reversing valve rod;
the upper air cylinder is arranged at the front side of the reversing valve rod, an upper piston is connected in the upper air cylinder in a sliding manner, and the upper side of the upper piston is connected with the lower end of the moving rod;
the hose is communicated with the lower end of the upper air cylinder, the other end of the hose is communicated with the lower air cylinder, the lower air cylinder is arranged at the left lower part of the reversing valve body, the lower piston is connected with the lower air cylinder in a sliding manner, the middle part of the lower piston is connected with a movable frame, the other end of the movable frame is connected with a positioning column, and the positioning column is elastically connected with the reversing valve body through a compression spring.
Preferably, the upper end of the reversing valve rod is connected with a resetting balloon, one side of the resetting balloon is communicated with an oil inlet pipe, the other end of the oil inlet pipe is communicated with an oil storage tank, and the oil storage tank is arranged on the outer side of the reversing valve rod;
the other side of the reset balloon is communicated with an oil discharge pipe, the other end of the oil discharge pipe is communicated with the reversing valve rod, the oil discharge pipe and the oil inlet pipe are provided with one-way valves, and the side wall below the reversing valve rod is provided with an oil discharge hole.
Preferably, the lower end of the adjusting rod at the rear position is hinged with a locking rod, the locking rod is in sliding connection with the reversing valve rod, the lower end of the locking rod is clamped with a locking groove, and the locking groove is formed in the outer side face of the mounting seat.
Preferably, the inside of the reversing valve rod is of a hollow structure, the oil drain holes distributed in an inclined mode are uniformly distributed on the side wall of the lower end of the reversing valve rod, lubricating oil can be concentrated into the reversing valve rod through the design, and the lubricating oil can be conveyed along the through grooves in the reversing valve rod and can be smoothly oozed out of the oil drain holes to lubricate the rotating part of the reversing valve rod.
Preferably, the inner hexagonal adjusting screw rods are symmetrically distributed about the longitudinal center line of the valve core, and the inner hexagonal adjusting screw rods are mutually attached to the end parts of the valve core.
Preferably, the pressing plate is of an arc-shaped structure, 2 pressing plates are surrounded on the outer portion of the reset saccule, and the pressing plate can be pressed through the finger part to press the reset saccule.
Preferably, the movable rod penetrates through the upper side wall of the upper air cylinder and is in sliding connection with the upper air cylinder, the upper air cylinder and the lower air cylinder are mutually communicated through the hose, the movable frame capable of sliding penetrates through the upper side wall of the lower air cylinder, and pressure adjustment in the upper air cylinder and the lower air cylinder can be achieved through the design, so that position adjustment of the movable frame is achieved.
Preferably, the locking grooves are distributed at equal angles with respect to the transverse center line of the mounting seat, and the positions of the locking grooves and the locking rods are arranged correspondingly to each other.
Preferably, the positioning column is of an n-shaped structure, the positioning column and the valve core are mutually clamped and connected, the movable frame connected in the middle of the positioning column penetrates through the center of the compression spring and the lower side wall of the reversing valve body to be in sliding connection with the reversing valve body, and the position of the positioning column can be flexibly adjusted through the design, so that the valve core is positioned and unlocked.
Compared with the prior art, the invention has the beneficial effects that:
(1) The manual reversing valve with the safety device is provided with the hexagonal adjusting screw and the outer hexagonal sealing nut, the safety device consists of the hexagonal adjusting screw and the outer hexagonal sealing nut, the two sides of the manual reversing valve adopt the structural mode with the safety device, when an emergency occurs, such as the breakage of a reset spring, the valve core can still be adjusted to each machine position, so that the manual reversing valve can normally act, the use requirement is met, and the equipment and personal safety are ensured;
(2) The manual reversing valve with the safety device is provided with the upper air cylinder and the lower air cylinder, the upper air cylinder and the lower air cylinder are mutually communicated, the internal air pressure can be adjusted, the position of the movable frame is adjusted, so that the position of the positioning column is controlled, when the reversing valve rod is required to rotate to drive the valve core to move, the locking of the positioning column to the valve core can be released, the valve core can move smoothly, the abrasion of the valve core and the valve core is avoided, after the valve core is moved, the positioning column can be controlled to be clamped into the valve core to lock the valve core, the valve core is prevented from being stressed to automatically move, and the use stability of the manual reversing valve is improved;
(3) This take safety device's manual reversing valve is provided with locking lever and reset sacculus, when the grip clamp plate rotates the reversing valve rod, but the locking lever shift out the locked groove in advance, relieve the location to the reversing valve rod to reset the sacculus extrusion and permeate lubricating oil to reversing valve rod's rotation portion, make reversing valve rod can smooth rotate, can laborsaving manual reversing valve drive, and after rotating, clamp plate, reset sacculus and locking lever reset and remove, can block reversing valve rod, avoid reversing valve rod to rotate by oneself, further improve reversing valve's stability of using.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the bottom structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the reversing valve of the present invention;
FIG. 4 is a schematic view of the connection structure of the adjusting lever and the moving lever according to the present invention;
FIG. 5 is a schematic view of the connection structure of the locking lever and the locking groove of the present invention;
FIG. 6 is a schematic cross-sectional view of a reversing valve stem of the present invention;
FIG. 7 is a schematic cross-sectional view of the upper cylinder of the present invention;
FIG. 8 is a schematic cross-sectional view of the lower cylinder of the present invention;
FIG. 9 is a schematic cross-sectional view of a reversing valve stem of the present invention.
In the figure: 1. a reversing valve body; 2. a valve core; 3. a reversing valve rod; 4. a mounting base; 5. resetting the balloon; 6. an inner hexagonal adjusting screw; 7. an outer hexagonal seal nut; 8. a pressing plate; 9. an extension rod; 10. an adjusting rod; 11. a moving rod; 12. an upper inflator; 13. an upper piston; 14. a hose; 15. a lower inflator; 16. a lower piston; 17. a moving rack; 18. positioning columns; 19. a compression spring; 20. a locking lever; 21. a locking groove; 22. an oil storage tank; 23. a one-way valve; 24. an oil inlet pipe; 25. an oil drain pipe; 26. an oil drain hole; 27. a return spring; 28. a vortex spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides the following technical solutions: a manual reversing valve with a safety device,
example 1:
the handle is adopted to push the valve core 2 to move, the two ends of the valve core 2 are centered by the springs, the valve core 2 is kept in the middle position, after the valve core is used for a long time and parts are corroded and worn, the phenomena of breaking the springs, clamping the valve core 2, falling off of a handle ball head and the like are easy to occur, normal use of the reversing valve cannot be guaranteed, and safety of equipment and personnel is seriously endangered, so that the reversing valve further comprises a reversing valve body 1, the valve core 2 is slidingly connected inside the reversing valve body 1, the left end of the valve core 2 is rotationally connected with a reversing valve rod 3, the left front side of the reversing valve body 1 is provided with a mounting seat 4, the reversing valve rod 3 penetrates through the mounting seat 4, and the reversing valve rod 3 can rotate on the mounting seat 4; the left end part and the right end part of the valve core 2 are elastically connected with the reversing valve body 1 through a reset spring 27; the inner hexagonal adjusting screw rod 6 is in threaded connection with the left end and the right end of the reversing valve body 1, and the outer side of the inner hexagonal adjusting screw rod 6 is in threaded connection with the outer hexagonal sealing nut 7; the inner hexagonal adjusting screw rods 6 are symmetrically distributed about the longitudinal center line of the valve core 2, and the inner hexagonal adjusting screw rods 6 are mutually attached to the end portions of the valve core 2.
The working principle of the embodiment is as follows: according to the figures 1 and 3, when the phenomena of breaking the reset spring 27, clamping the valve core 2, falling off the reversing valve rod 3 and the like occur, the inner hexagonal adjusting screw 6 and the outer hexagonal sealing nut 7 can be rotated, so that the inner hexagonal adjusting screw 6 moves at the end part of the reversing valve body 1 to push the valve core 2, the inner hexagonal adjusting screws 6 distributed at the two ends can flexibly adjust the moving direction of the valve core 2 and position the valve core 2, the reversing valve body 1 is normally used, the normal operation of equipment is avoided, and the safety of the working environment is ensured;
example 2:
the moving valve core is positioned by utilizing the spring seat, but the structure depends on the elastic force of the spring seat, the valve core is directly forced to be separated from the spring seat for being clamped for position movement, and the valve core is used for a long time, so that the abrasion between the valve core and the spring seat is large, and the service life of the reversing valve is influenced, therefore, in order to solve the technical problem, the embodiment also comprises a pressing plate 8 which is rotationally connected to the outer side of the upper end of the reversing valve rod 3, the rotating end part of the pressing plate 8 is elastically connected with the reversing valve rod 3 through a vortex spring 28, the lower end of the pressing plate 8 is connected with an extension rod 9, the other end of the extension rod 9 is hinged with an adjusting rod 10, the other end of the adjusting rod 10 at the front position is hinged with a moving rod 11, and the moving rod 11 is in sliding connection with the reversing valve rod 3; an upper air cylinder 12 mounted on the front side of the reversing valve stem 3, and an upper piston 13 is slidably connected to the inside of the upper air cylinder 12, and the upper side of the upper piston 13 is connected to the lower end of the moving rod 11; the hose 14, communicate the lower extreme of the upper cylinder 12, and the other end of hose 14 communicates with the lower cylinder 15, and the lower cylinder 15 is installed in the left side below the switching-over valve body 1, and the inside sliding connection of lower cylinder 15 has lower piston 16, and the middle part of lower piston 16 is connected with and removes the frame 17, and the other end of removing the frame 17 is connected with reference column 18, and reference column 18 passes through compression spring 19 and is connected with switching-over valve body 1 elasticity.
The upper end of the reversing valve rod 3 is connected with a resetting balloon 5, one side of the resetting balloon 5 is communicated with an oil inlet pipe 24, the other end of the oil inlet pipe 24 is communicated with an oil storage tank 22, and the oil storage tank 22 is arranged on the outer side of the reversing valve rod 3; the other side of the reset balloon 5 is communicated with an oil discharge pipe 25, the other end of the oil discharge pipe 25 is communicated with the reversing valve rod 3, the oil discharge pipe 25 and the oil inlet pipe 24 are respectively provided with a one-way valve 23, and the side wall below the reversing valve rod 3 is provided with an oil discharge hole 26. The lower end of the adjusting rod 10 at the rear position is hinged with a locking rod 20, the locking rod 20 and the reversing valve rod 3 are connected in a sliding manner, the lower end of the locking rod 20 and a locking groove 21 are mutually clamped, and the locking groove 21 is formed in the outer side face of the mounting seat 4. The inside of the reversing valve rod 3 is of a hollow structure, and oil drain holes 26 distributed in an inclined mode are uniformly distributed on the side wall of the lower end of the reversing valve rod 3. The clamp plate 8 is the arc structure, and 2 clamp plates 8 surround in reset sacculus 5's outside. The moving rod 11 penetrates through the upper side wall of the upper cylinder 12 and is slidably connected to the upper cylinder 12, and the upper cylinder 12 and the lower cylinder 15 are communicated with each other through a hose 14, and the upper side wall of the lower cylinder 15 is penetrated by a slidable moving frame 17. The locking grooves 21 are equiangularly distributed about the transverse center line of the mount 4, and the positions of the locking grooves 21 and the locking bars 20 are disposed in correspondence with each other. The positioning column 18 is of an n-shaped structure, the positioning column 18 and the valve core 2 are mutually clamped and connected, and a movable frame 17 connected with the middle part of the positioning column 18 penetrates through the center of the compression spring 19 and the lower side wall of the reversing valve body 1 to be in sliding connection with the reversing valve body 1.
The working principle of the embodiment is as follows: when the reversing valve body 1 works normally, as shown in fig. 4-5, the pressing plate 8 is held by hand, so that the pressing plate 8 rotates at the end part of the reversing valve rod 3, the vortex spring 28 connected with the end part is controlled to synchronously rotate and accumulate force, the reset saccule 5 is pressed, lubricating oil sucked by the reset saccule 5 can be conveyed along the oil discharge pipe 25, at the moment, the one-way valve 23 on the oil discharge pipe 25 is opened, the one-way valve 23 on the oil inlet pipe 24 is closed, as shown in fig. 6 and 9, lubricating oil enters the reversing valve rod 3, then seeps out from the oil discharge hole 26, the rotating end part of the reversing valve rod 3 is lubricated, the smooth rotation of the reversing valve rod 3 is ensured, meanwhile, when the pressing plate 8 is pressed, the pressing plate 8 can drive the extension rod 9 to rotate, the adjusting rod 10 hinged at the lower end of the extension rod 9 is controlled to rotate, so as to control the moving rod 11 and the locking rod 20 hinged at the other end to move upwards, the movable rod 11 and the locking rod 20 slide at the side of the reversing valve rod 3, so that the vertical movement of the movable rod 11 and the locking rod 20 is ensured, the locking rod 20 moves upwards, the locking rod 20 is separated from the locking groove 21, the position locking of the reversing valve rod 3 is released, the movable rod 11 moves, the upper piston 13 can be controlled to slide in the upper air cylinder 12, the upper piston 13 moves upwards as shown in the combination of figures 7-8, the air flow in the lower air cylinder 15 can be sucked through the hose 14, the air pressure in the lower air cylinder 15 is reduced, the lower piston 16 is controlled to move downwards, the movable frame 17 is driven to move downwards, the positioning column 18 moves downwards, the compression spring 19 is extruded to store force, the positioning column 18 is contacted with the locking of the valve core 2, the reversing valve rod 3 is rotated at the moment, the valve core 2 can be driven in a labor-saving way, and the moving abrasion of the valve core 2 is reduced, the pressing of the pressing plate 8 is released, the vortex spring 28 controls the pressing plate 8 to reset and rotate, at the moment, the reset ball bag 5 resets and bulges, at the moment, the one-way valve 23 on the oil inlet pipe 24 is opened, the one-way valve 23 on the oil outlet pipe 25 is closed, lubricating oil in the oil storage tank 22 can be pumped into the reset ball bag 5 from the oil inlet pipe 24 so as to be convenient for the next side to use, meanwhile, the pressing plate 8 controls the extension rod 9 to reset and rotate, the driving adjusting rod 10 drives the moving rod 11 and the locking rod 20 to move downwards, the locking rod 20 is clamped with the locking groove 21 at the corresponding position, the angular position of the reversing valve rod 3 is locked, the forced rotation of the reversing valve rod 3 is avoided, the moving rod 11 moves downwards to drive the upper piston 13 to move downwards, the air flow is filled into the lower air cylinder 15, the lower piston 16 is pushed upwards to move upwards, the moving frame 17 can move upwards in cooperation with the reset movement of the compression spring 19, the positioning column 18 is controlled to move upwards and reset, the positioning column 18 is clamped into the valve core 2, the opening position of the valve core 2 is fixed, the valve core 2 is prevented from moving automatically, and the use of the reversing valve body 1 is stabilized.
What is not described in detail in this specification is prior art known to those skilled in the art.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The manual reversing valve with the safety device comprises a reversing valve body (1), wherein a valve core (2) is slidably connected in the reversing valve body (1), the left end of the valve core (2) is rotatably connected with a reversing valve rod (3), an installation seat (4) is installed on the left front side of the reversing valve body (1), the reversing valve rod (3) penetrates through the installation seat (4), and the reversing valve rod (3) can rotate on the installation seat (4);
the left end part and the right end part of the valve core (2) are elastically connected with the reversing valve body (1) through a return spring (27);
the method is characterized in that: further comprises:
the inner hexagonal adjusting screw rod (6) is in threaded connection with the left end and the right end of the reversing valve body (1), and an outer hexagonal sealing nut (7) is in threaded connection with the outer side of the inner hexagonal adjusting screw rod (6);
the pressing plate (8) is rotationally connected to the outer side of the upper end of the reversing valve rod (3), the rotating end of the pressing plate (8) is elastically connected with the reversing valve rod (3) through a vortex spring (28), the lower end of the pressing plate (8) is connected with an extension rod (9), the other end of the extension rod (9) is hinged with an adjusting rod (10), the other end of the adjusting rod (10) at the front position is hinged with a moving rod (11), and the moving rod (11) is in sliding connection with the reversing valve rod (3);
an upper air cylinder (12) which is arranged at the front side of the reversing valve rod (3), an upper piston (13) is connected in the upper air cylinder (12) in a sliding way, and the upper side of the upper piston (13) is connected with the lower end of the moving rod (11);
hose (14), the intercommunication is in the lower extreme of going up inflator (12), just the other end intercommunication of hose (14) has lower inflator (15), and lower inflator (15) are installed the left side below of switching-over valve body (1), and the inside sliding connection of lower inflator (15) has lower piston (16), the middle part of lower piston (16) is connected with movable frame (17), just the other end of movable frame (17) is connected with reference column (18), and reference column (18) pass through compression spring (19) with switching-over valve body (1) elastic connection.
2. A manual diverter valve with safety device according to claim 1, characterized in that: the upper end of the reversing valve rod (3) is connected with a resetting balloon (5), one side of the resetting balloon (5) is communicated with an oil inlet pipe (24), the other end of the oil inlet pipe (24) is communicated with an oil storage tank (22), and the oil storage tank (22) is arranged on the outer side of the reversing valve rod (3);
the other side of the reset balloon (5) is communicated with an oil discharge pipe (25), the other end of the oil discharge pipe (25) is communicated with the reversing valve rod (3), the oil discharge pipe (25) and the oil inlet pipe (24) are provided with one-way valves (23), and the side wall below the reversing valve rod (3) is provided with an oil discharge hole (26).
3. A manual diverter valve with safety device according to claim 2, characterized in that: the lower extreme hinge connection of back position regulation pole (10) has locking lever (20), just locking lever (20) with switching-over valve rod (3) sliding connection each other, and the lower extreme of locking lever (20) and locking groove (21) block each other, locking groove (21) are seted up the lateral surface of mount pad (4).
4. A manual diverter valve with safety device according to claim 2, characterized in that: the inside of the reversing valve rod (3) is of a hollow structure, and oil drain holes (26) distributed in an inclined mode are uniformly distributed on the side wall of the lower end of the reversing valve rod (3).
5. A manual diverter valve with safety device according to claim 1, characterized in that: the inner hexagonal adjusting screws (6) are symmetrically distributed about the longitudinal center line of the valve core (2), and the inner hexagonal adjusting screws (6) are mutually attached to the end portions of the valve core (2).
6. A manual diverter valve with safety device according to claim 2, characterized in that: the pressing plates (8) are of arc-shaped structures, and 2 pressing plates (8) are surrounded on the outer portion of the reset saccule (5).
7. A manual diverter valve with safety device according to claim 1, characterized in that: the movable rod (11) penetrates through the upper side wall of the upper air cylinder (12) and is in sliding connection with the upper air cylinder (12), the upper air cylinder (12) and the lower air cylinder (15) are mutually communicated through the hose (14), and the upper side wall of the lower air cylinder (15) penetrates through the movable frame (17) which can slide.
8. A manual diverter valve with safety device according to claim 3, characterized in that: the locking grooves (21) are distributed at equal angles with respect to the transverse center line of the mounting seat (4), and the positions of the locking grooves (21) and the locking rods (20) are correspondingly arranged.
9. A manual diverter valve with safety device according to claim 1, characterized in that: the positioning column (18) is of an n-shaped structure, the positioning column (18) and the valve core (2) are mutually clamped and connected, and the moving frame (17) connected with the middle of the positioning column (18) penetrates through the center of the compression spring (19) and the lower side wall of the reversing valve body (1) to be in sliding connection with the reversing valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310299520.6A CN116292974B (en) | 2023-03-24 | 2023-03-24 | Manual reversing valve with safety device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310299520.6A CN116292974B (en) | 2023-03-24 | 2023-03-24 | Manual reversing valve with safety device |
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| Publication Number | Publication Date |
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| CN116292974A CN116292974A (en) | 2023-06-23 |
| CN116292974B true CN116292974B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310299520.6A Active CN116292974B (en) | 2023-03-24 | 2023-03-24 | Manual reversing valve with safety device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116972180B (en) * | 2023-08-02 | 2024-05-24 | 江苏博特威流体科技有限公司 | Anti-theft portable valve opening and closing device |
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| US10234055B2 (en) * | 2016-04-01 | 2019-03-19 | Jeffrey Allen Bertrem | Directional control valve locking device |
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| EP0003687A1 (en) * | 1978-02-13 | 1979-08-22 | Keystone International, Inc. | Manual control apparatus |
| US5236001A (en) * | 1991-12-20 | 1993-08-17 | Thomas Kleles | Dual fluid remote control valve |
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| CN116292974A (en) | 2023-06-23 |
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