CN113833869A - Air pilot valve, color changing valve, reversing valve, proportioning control valve and flow control valve - Google Patents
Air pilot valve, color changing valve, reversing valve, proportioning control valve and flow control valve Download PDFInfo
- Publication number
- CN113833869A CN113833869A CN202111169701.4A CN202111169701A CN113833869A CN 113833869 A CN113833869 A CN 113833869A CN 202111169701 A CN202111169701 A CN 202111169701A CN 113833869 A CN113833869 A CN 113833869A
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing head
- valve
- liquid outlet
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- 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
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
- F16K11/22—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members with an actuating member for each valve, e.g. interconnected to form multiple-way valves
-
- 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- 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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The embodiment of the invention provides an air pilot valve, a color changing valve, a reversing valve, a proportioning control valve and a flow control valve, and relates to the field of spraying. This air pilot valve includes the disk seat, the cylinder, a piston, elastic component and seal assembly, be equipped with inlet and liquid outlet on the disk seat, the cylinder is connected with the disk seat, the one end detachably that the disk seat was kept away from to the cylinder is equipped with the cylinder head, be equipped with first air inlet on the cylinder, be equipped with the second air inlet on the cylinder head, the elastic component sets up in first holding intracavity, and the one end and the piston butt of elastic component, the inner wall butt of its other end and cylinder head, seal assembly is including sealed axle and sealed head, sealed head sets up in the disk seat, the one end and the piston connection of sealed axle, the other end and the first interference fit of sealed axle, the piston is used for driving sealed axle and sealed head removal so that sealed head closes or open the liquid outlet for the gliding in-process in first holding chamber. The air pilot valve may be used in conjunction with a variety of fittings to perform a variety of different functions.
Description
Technical Field
The invention relates to the field of spraying, in particular to an air pilot valve, a color changing valve, a reversing valve, a proportioning control valve and a flow control valve.
Background
With the development of industrial automation, the automation of the spraying industry is also gradually becoming a trend.
Most of the spraying control flows realize various controls on fluid by simple switch valves, most of the air pilot valves in the prior art can only realize one function, so that various different air pilot valves are arranged in the coating control process, the air pilot valves with different functions invisibly increase the complexity of maintaining products, and also increase the production cost and the maintenance cost.
Disclosure of Invention
The invention provides an air pilot valve, a color changing valve, a reversing valve, a proportioning control valve and a flow control valve, which can realize that the air pilot valve has multiple functions and simplify the structure of a spraying device.
Embodiments of the invention may be implemented as follows:
an embodiment of the present invention provides an air pilot valve, including:
the valve seat is provided with a liquid inlet and a liquid outlet;
the cylinder is connected with the valve seat, one end of the cylinder, far away from the valve seat, is detachably provided with a cylinder cover, a first air inlet is formed in the cylinder, a second air inlet is formed in the cylinder cover, a first accommodating cavity is formed in the cylinder, and the first air inlet and the second air inlet are both communicated with the first accommodating cavity;
the piston is slidably arranged in the first accommodating cavity;
the elastic piece is arranged in the first accommodating cavity, one end of the elastic piece is abutted against the piston, and the other end of the elastic piece is abutted against the inner wall of the cylinder cover;
the sealing assembly comprises a sealing shaft and a sealing head, the sealing head is arranged in the valve seat, one end of the sealing shaft is connected with the piston, the other end of the sealing shaft is in interference fit with the sealing head, and the sealing shaft, the sealing head and the liquid outlet are coaxially arranged;
the piston is used for driving the sealing shaft and the sealing head to move in the process of sliding relative to the first accommodating cavity, so that the sealing head closes or opens the liquid outlet.
Optionally, the one end that sealed axle is close to sealed head is equipped with the arch, protruding edge the circumferencial direction setting of sealed axle, the mounting groove has been seted up to sealed head, sealed axle is equipped with bellied one end is passed through the mounting groove with sealed first interference fit.
Optionally, a second accommodating cavity is further formed in the cylinder, the second accommodating cavity is communicated with the first accommodating cavity, the sealing shaft is arranged in the second accommodating cavity, and two ends of the sealing shaft extend out of the second accommodating cavity;
the second holding intracavity is equipped with the uide bushing, the uide bushing cover is established the outside of sealed axle, just the uide bushing with sealed axle interference fit is in order to right sealed axle guides and seals.
Optionally, a detection port is formed in a side wall of the cylinder, and the detection port is used for detecting liquid leakage.
Optionally, one end of the sealing shaft, which is far away from the piston, is sleeved with a first sealing element, and the first sealing element is used for sealing liquid.
Optionally, a piston sealing ring is sleeved outside the piston, and the piston sealing ring is in interference fit with the first accommodating cavity.
Optionally, a second seal is provided between the cylinder and the valve seat, the second seal being configured to prevent liquid leakage.
Optionally, the cylinder outer wall is provided with a scale.
The embodiment of the invention also provides a color changing valve which comprises an electromagnetic valve, a liquid outlet part and a plurality of air pilot valves;
the air pilot valves are arranged in an array mode, the liquid outlets of the air pilot valves are communicated with the liquid outlet piece, the electromagnetic valves are connected with all the air pilot valves, and different air pilot valves are used for being communicated with coatings with different colors;
the electromagnetic valve is used for controlling the air pilot valve communicated with the paint with the corresponding color to work so that the paint with the corresponding color flows out of the liquid outlet piece.
The embodiment of the invention also provides a reversing valve, which comprises a sealing head pair and the air pilot valve;
one end of the sealing shaft is connected with the piston, the other end of the sealing shaft is detachably connected with the sealing head, the sealing head pair is in threaded connection with the sealing head, and the sealing head pair and the sealing head are coaxially arranged;
the liquid inlet is arranged on the side wall of the valve seat, the liquid inlet is positioned between the sealing head and the sealing head pair, the liquid outlet comprises a first liquid outlet and a second liquid outlet, the first liquid outlet and the second liquid outlet are respectively arranged at two ends of the liquid inlet, the sealing head is used for opening and closing the first liquid outlet, and the sealing head pair is used for opening and closing the second liquid outlet;
the piston is used for driving the sealing shaft, the sealing head and the sealing head pair move in the sliding process, so that the sealing head closes the first liquid outlet and is opened, the piston is used for driving the sealing shaft, the sealing head and the sealing head pair to move in the reverse sliding process, so that the sealing head opens the first liquid outlet and closes the second liquid outlet.
Optionally, the sealing head and the sealing head pair are both sleeved with sealing O-rings.
Optionally, the reversing valve further comprises an outlet aligning wire, and the outlet aligning wire is connected with the second liquid outlet.
The embodiment of the invention also provides a proportioning control valve, which comprises a limit nut and the air pilot valve;
the limiting nut is arranged in the first accommodating cavity, one end of the limiting nut is abutted against the cylinder cover, the other end of the limiting nut is abutted against the piston, and the limiting nut is used for limiting the piston;
the cylinder cover is in threaded connection with the cylinder, and the proportioning control valve is used for adjusting the opening degree of the proportioning control valve by screwing or unscrewing the cylinder cover in the using process.
The embodiment of the invention also provides a flow control valve which comprises the air pilot valve, wherein the air pilot valve comprises a sealing head, the sealing head is conical, and the sealing head is used for changing the angle of the conical angle so as to adjust the matching between the sealing head and the valve seat.
The air pilot valve, the color changing valve, the reversing valve, the proportioning control valve and the flow control valve of the embodiment of the invention have the beneficial effects that:
the air pilot valve comprises a valve seat, a cylinder, a piston, an elastic piece and a sealing assembly, wherein the valve seat is provided with a liquid inlet and a liquid outlet, the cylinder is connected with the valve seat, one end of the cylinder, which is far away from the valve seat, is detachably provided with a cylinder cover, the cylinder is provided with a first air inlet, the cylinder cover is provided with a second air inlet, a first accommodating cavity is arranged in the cylinder, the first air inlet and the second air inlet are both communicated with the first accommodating cavity, the piston is slidably arranged in the first accommodating cavity, the elastic piece is arranged in the first accommodating cavity, one end of the elastic piece is abutted against the piston, the other end of the elastic piece is abutted against the inner wall of the cylinder cover, the sealing assembly comprises a sealing shaft and a sealing head, the sealing head is arranged in the valve seat, one end of the sealing shaft is connected with the piston, the other end of the sealing shaft is in interference fit with the sealing head, the sealing shaft, the sealing head and the liquid outlet are coaxially arranged, and the piston is used in the sliding process relative to the first accommodating cavity, the sealing shaft and the sealing head are driven to move, so that the sealing head closes or opens the liquid outlet. The air pilot valve can be used for being matched with various matching pieces to realize various different functions, so that the internal structure of the spraying device is simplified, and the production cost is reduced.
This trade look valve includes the solenoid valve, go out liquid spare and a plurality of air pilot valve, a plurality of air pilot valve arrange and set up, and a plurality of air pilot valve's liquid outlet all with go out liquid spare intercommunication, the solenoid valve is connected with air pilot valve, different air pilot valve be used for with the coating intercommunication of different colours, when using this trade look valve and need the coating of a certain colour, the solenoid valve control with the air pilot valve work that corresponds the coating intercommunication of colour, so that the coating that corresponds the colour flows from going out liquid spare, thereby carry out spraying work.
The reversing valve comprises a sealing head pair and an air pilot valve, one end of the sealing head is connected with a piston, the other end of the sealing head is detachably connected with the sealing head pair, the sealing head pair is in threaded connection with the sealing head and is coaxially arranged with the sealing head, a liquid inlet is arranged on the side wall of a valve seat, a liquid inlet is positioned between the sealing head and the sealing head pair, a liquid outlet comprises a first liquid outlet and a second liquid outlet, the first liquid outlet and the second liquid outlet are respectively arranged at two ends of the liquid inlet, the sealing head is used for opening and closing the first liquid outlet, the sealing head pair is used for opening and closing the second liquid outlet, when the reversing valve is used, the piston slides and drives a sealing shaft, the sealing head and the sealing head pair to move, so that the sealing head closes the first liquid outlet, the sealing head pair opens the second liquid outlet, at the moment, the coating flows out through the second liquid outlet, the piston slides reversely to drive the sealing shaft, and the sealing head pair move reversely, so that first liquid outlet is opened to sealed head, and sealed head is vice to close the second liquid outlet, and coating flows out via first liquid outlet this moment to realize the mesh of switching-over.
This ratio control valve includes stop nut and air pilot valve, and stop nut sets up in first holding intracavity, and stop nut's one end and cylinder head butt, its other end and piston butt, and stop nut is used for carrying on spacingly to the piston, cylinder head and cylinder threaded connection, and ratio control valve is used for adjusting the aperture of ratio control valve through screwing up or unscrewing the cylinder head in the use.
This flow control valve includes air pilot valve, and air pilot valve is the toper including sealed head, and sealed head is the toper, and sealed head is used for changing the cone angle to the cooperation between sealed head of adjustment and the disk seat, when using this flow control valve, through the cone angle that changes sealed head, so that the complex changes between sealed head and the disk seat, thereby realizes the purpose of regulating flow.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an air pilot valve provided in this embodiment;
FIG. 2 is a schematic structural view of the seal shaft of the present embodiment;
fig. 3 is a schematic structural diagram of a color change valve provided in this embodiment;
FIG. 4 is a schematic structural diagram of a reversing valve provided in this embodiment;
FIG. 5 is a schematic structural diagram of a proportioning control valve according to this embodiment;
fig. 6 is a schematic structural diagram of a flow control valve according to this embodiment.
Icon: 10-a valve seat; 11-a liquid inlet; 12-a liquid outlet; 121-a first liquid outlet; 122-a second liquid outlet; 20-a cylinder; 21-a first accommodating cavity; 22-a second accommodating cavity; 23-a first air inlet; 24-a detection port; 30-a cylinder head; 31-a second air inlet; 40-a piston; 50-an elastic member; 60-a seal assembly; 61-a seal shaft; 62-sealing the head; 63-bump; 64-mounting grooves; 65-a first seal; 66-piston seal ring; 67-a second seal; 70-a guide sleeve; 100-an air pilot valve; 1000-color changing valve; 200-liquid outlet; 2000-a reversing valve; 400-sealing the head pair; 500-outlet to filament; 600-sealing the O-shaped ring; 3000-proportioning control valves; 700-a limit nut; 4000-flow control valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
With the development of industrial automation, the automation of the spraying industry is also gradually becoming a trend.
Most of the spraying control flows realize various controls on fluid by simple switch valves, most of the air pilot valves in the prior art can only realize one function, so that various different air pilot valves are arranged in the coating control process, the air pilot valves with different functions invisibly increase the complexity of maintaining products, and also increase the production cost and the maintenance cost.
Referring to fig. 1, the present embodiment provides an air pilot valve 100, and the air pilot valve 100 can effectively solve the above-mentioned technical problems, and can realize that the air pilot valve 100 has multiple functions, thereby simplifying the structure of the spraying device.
The air pilot valve 100 comprises a valve seat 10, a cylinder 20, a piston 40, an elastic part 50 and a sealing assembly 60, wherein a liquid inlet 11 and a liquid outlet 12 are arranged on the valve seat 10, the cylinder 20 is connected with the valve seat 10, a cylinder cover 30 is detachably arranged at one end, away from the valve seat 10, of the cylinder 20, a first air inlet 23 is arranged on the cylinder 20, a second air inlet 31 is arranged on the cylinder cover 30, a first accommodating cavity 21 is arranged in the cylinder 20, the first air inlet 23 and the second air inlet 31 are both communicated with the first accommodating cavity 21, the piston 40 is slidably arranged in the first accommodating cavity 21, the elastic part 50 is arranged in the first accommodating cavity 21, one end of the elastic part 50 is abutted against the piston 40, the other end of the elastic part 50 is abutted against the inner wall of the cylinder cover 30, the sealing assembly 60 comprises a sealing shaft 61 and a sealing head 62, the sealing head 62 is arranged in the valve seat 10, one end of the sealing shaft 61 is connected with the piston 40, specifically, one end of the sealing shaft 61 is connected with the piston 40 by screw thread, the other end of the sealing shaft 61 is in interference fit with the sealing head 62, the sealing shaft 61, the sealing head 62 and the liquid outlet 12 are coaxially arranged, and the piston 40 is used for driving the sealing shaft 61 and the sealing head 62 to move in the process of sliding relative to the first accommodating cavity 21, so that the sealing head 62 closes or opens the liquid outlet 12.
Wherein, the liquid inlet 11 is disposed on the side wall of the valve seat 10 and is communicated with the liquid outlet 12.
When the air pilot valve 100 is used, the first air inlet 23 and the second air inlet 31 are both communicated with an air pump, and after the first air inlet 23 is filled with air, the piston 40 moves upward under pressure to drive the sealing shaft 61 and the sealing head 62 to move upward, and at this time, the sealing head 62 opens the liquid outlet 12, so that paint can enter from the liquid inlet 11 and flow out from the liquid outlet 12. After the first air inlet 23 stops receiving air, and the second air inlet 31 receives air, the piston 40 moves downward under pressure to drive the sealing shaft 61 and the sealing head 62 to move downward, and at this time, the sealing head 62 closes the liquid outlet 12.
In order to provide the cylinder 20 with better corrosion resistance, the cylinder 20 is a stainless steel cylinder.
Wherein the cylinder 20 and the cylinder head 30 are screw-coupled so that the cylinder 20 and the cylinder head 30 can be detached.
In this embodiment, the seal shaft 61 is a stainless steel seal shaft and the seal head 62 is a plastic seal head.
Referring to fig. 2 and fig. 1, in the present embodiment, in order to make the connection between the sealing shaft 61 and the sealing head 62 more secure and make the installation of the sealing shaft 61 and the sealing head 62 easier, a protrusion 63 is disposed at one end of the sealing shaft 61 close to the sealing head 62, the protrusion 63 is disposed along the circumferential direction of the sealing shaft 61, an installation groove 64 is disposed on the sealing head 62, and one end of the sealing shaft 61, at which the protrusion 63 is disposed, is in interference fit with the sealing head 62 through the installation groove 64.
In the present embodiment, the number of the projections 63 is two, and the two projections 63 are provided at intervals in the radial direction of the seal shaft 61. In other embodiments, the number of the protrusions 63 may be increased or decreased, and is not particularly limited herein.
Referring to fig. 1, in addition, a second accommodating chamber 22 is further disposed in the cylinder 20, the second accommodating chamber 22 is communicated with the first accommodating chamber 21, the sealing shaft 61 is disposed in the second accommodating chamber 22, and two ends of the sealing shaft 61 extend out of the second accommodating chamber 22.
The diameter of the second receiving chamber 22 is smaller than the diameter of the first receiving chamber 21.
The second accommodating cavity 22 is internally provided with a guide sleeve 70, the guide sleeve 70 is sleeved outside the sealing shaft 61, and the guide sleeve 70 is in interference fit with the sealing shaft 61 to guide and seal the sealing shaft 61.
Specifically, the guide sleeve 70 is a teflon guide sleeve.
The side wall of the cylinder 20 is opened with a detection port 24. Air pilot valve 100 is under normal operating condition, and inside can be full of coating, through long-time work back, if take place coating and reveal, detection mouth 24 and second holding chamber 22 intercommunication, the coating of revealing can flow from the leakage mouth, avoids the coating of revealing to get into the cavity of cylinder 20 indoor to cause the pollution to it, and the condition is revealed in the discovery that simultaneously can be timely, in time takes counter-measure.
One end of the sealing shaft 61, which is far away from the piston 40, is sleeved with a first sealing element 65, and the first sealing element 65 is used for sealing liquid.
The piston 40 is externally sleeved with a piston sealing ring 66, and the piston sealing ring 66 is in interference fit with the first accommodating cavity 21.
A second sealing member 67 is provided between the cylinder 20 and the valve seat 10, and the second sealing member 67 is used to prevent liquid leakage.
Fig. 3 specifically shows the structural features of the color change valve 1000, and the structural features of the color change valve 1000 will be described in detail below.
Referring to fig. 3, the color changing valve 1000 includes an electromagnetic valve (not shown), a liquid outlet member 200, and a plurality of air pilot valves 100, wherein the plurality of air pilot valves 100 are arranged in an array, liquid outlets 12 of the plurality of air pilot valves 100 are all communicated with the liquid outlet member 200, the electromagnetic valve is connected to all the air pilot valves 100, different air pilot valves 100 are used for communicating with different colors of paints, and the electromagnetic valve is used for controlling the air pilot valves 100 communicated with the paints of corresponding colors to operate, so that the paints of corresponding colors flow out from the liquid outlet member 200.
In this embodiment, the solenoid valve is a two-position five-way solenoid valve.
The solenoid valve is connected with all the air pilot valves 100 through air pipes.
To explain the relative position in fig. 3, the liquid outlets 12 of the two air pilot valves 100 are oppositely disposed and form a liquid outlet channel, one end of the liquid outlet channel is communicated with the liquid outlet 12 of the other air pilot valve 100, and the other end of the liquid outlet channel is communicated with the liquid outlet member 200.
The color of the paint filled in each air pilot valve 100 is different.
For example, when the red paint is needed, the electromagnetic valve controls the operation of the air pilot valve 100 filled with the red paint, so that the red paint flows out of the air pilot valve 100, finally flows out of the liquid outlet piece 200 through the liquid outlet channel for spraying operation.
Fig. 4 specifically shows the structural features of the directional valve 2000, and the structural features of the directional valve 2000 will be described in detail below.
Referring to fig. 4, the reversing valve 2000 includes a sealing head pair 400 and the above-mentioned air pilot valve 100, one end of the sealing shaft 61 is connected to the piston 40, the other end of the sealing shaft 61 is detachably connected to the sealing head 62, specifically, the other end of the sealing shaft 61 is screwed to the sealing head 62, the sealing head pair 400 is screwed to the sealing head 62, and the sealing head pair 400 and the sealing head 62 are coaxially disposed.
The liquid inlet 11 is disposed on a side wall of the valve seat 10, the liquid inlet 11 is located between the sealing head 62 and the sealing head pair 400, the liquid outlet 12 includes a first liquid outlet 121 and a second liquid outlet 122, the first liquid outlet 121 and the second liquid outlet 122 are respectively disposed at two ends of the liquid inlet 11, the sealing head 62 is used for opening and closing the first liquid outlet 121, and the sealing head pair 400 is used for opening and closing the second liquid outlet 122.
The piston 40 is configured to drive the sealing shaft 61, the sealing head 62 and the sealing head pair 400 to move in the sliding process, so that the sealing head 62 closes the first liquid outlet 121, and the sealing head pair 400 opens the second liquid outlet 122, and the piston 40 is configured to drive the sealing shaft 61, the sealing head 62 and the sealing head pair 400 to move in the reverse direction in the reverse sliding process, so that the sealing head 62 opens the first liquid outlet 121, and the sealing head pair 400 closes the second liquid outlet 122.
The sealing head 62 and the sealing head pair 400 are both sleeved with sealing O-rings 600.
Referring to the relative position of fig. 4, when the piston 40 moves toward the cylinder head 30, the sealing shaft 61, the sealing head 62 and the sealing head pair 400 are driven to move toward the cylinder head 30, at this time, the sealing O-ring 600 on the sealing head 62 seals the first liquid outlet 121, the sealing head pair 400 opens the second liquid outlet 122, and the coating entering through the liquid inlet 11 flows out of the second liquid outlet 122.
When the piston 40 moves in a direction away from the cylinder head 30, the sealing shaft 61, the sealing head 62 and the sealing head pair 400 are driven to move in the direction away from the cylinder head 30, at this time, the sealing O-ring 600 on the sealing head pair 400 seals the second liquid outlet 122, the sealing head 62 opens the first liquid inlet 11, and the paint entering through the liquid inlet 11 flows out from the first liquid outlet 121.
The reversing valve 2000 further comprises an outlet aligning wire 500, wherein the outlet aligning wire 500 is connected with the second liquid outlet 122, and specifically, the outlet aligning wire 500 is in threaded connection with the second liquid outlet 122.
Fig. 5 specifically shows the structural features of the proportioning control valve 3000, and the structural features of the proportioning control valve 3000 will be described in detail below.
Referring to fig. 5, the proportioning control valve 3000 includes a limiting nut 700 and the air pilot valve 100, the limiting nut 700 is disposed in the first accommodating cavity 21, one end of the limiting nut 700 abuts against the cylinder cover 30, the other end of the limiting nut 700 abuts against the piston 40, the limiting nut 700 is used for limiting the piston 40, the cylinder cover 30 is in threaded connection with the cylinder 20, and the proportioning control valve 3000 is used for adjusting the opening of the proportioning control valve 3000 by screwing or unscrewing the cylinder cover 30 during use.
In addition, the outer wall of the cylinder 20 is provided with scales. Specifically, the cylinder 20 is provided with a scale at a position near the cylinder head 30.
Under the state that cylinder head 30 was screwed up, because stop nut 700 butt is between piston 40 and cylinder head 30, after first air inlet 23 inserted the air, piston 40 can not remove, sealed axle 61 can not remove with sealed head 62 yet for sealed head 62 seals liquid outlet 12, then through screwing up cylinder head 30, and observe the scale on the cylinder 20, adjust this proportioning control valve 3000's aperture, thereby carry out accurate control to the proportioning control valve 3000 of the coating that is equipped with different flow.
Fig. 6 specifically shows the structural features of the flow control valve 4000, and the structural features of the flow control valve 4000 will be described in detail below.
Referring to fig. 6, the flow control valve 4000 includes the air pilot valve 100, the air pilot valve 100 includes a sealing head 62, the sealing head 62 is conical, and the sealing head 62 is used for changing the angle of the cone angle to adjust the fit between the sealing head 62 and the valve seat 10.
The cone angle of the sealing head 62 is the same as the cone angle of the valve seat 10.
When the flow control valve 4000 is used, the fitting relationship between the sealing head 62 and the valve seat 10 is changed by changing the size of the taper angle of the sealing head 62, so that the purpose of adjusting the flow of the coating material is achieved.
It should be noted that if the taper angle of the sealing head 62 is made smaller, the flow rate of the paint is adjusted more finely when the piston 40 moves the same distance than before the change.
Because the valve port is not closed in the adjusting process, the coating flow is adjusted in the state, so that the pressure fluctuation of the coating delivery system is smaller, and the coating delivery system has greater advantage on flow control.
The air pilot valve 100, the color changing valve 1000, the reversing valve 2000, the proportioning control valve 3000 and the flow control valve 4000 provided by the embodiment at least have the following advantages:
the air pilot valve 100 comprises a valve seat 10, a cylinder 20, a piston 40, an elastic part 50 and a sealing assembly 60, wherein a liquid inlet 11 and a liquid outlet 12 are arranged on the valve seat 10, the cylinder 20 is connected with the valve seat 10, a cylinder cover 30 is detachably arranged at one end, away from the valve seat 10, of the cylinder 20, a first air inlet 23 is arranged on the cylinder cover 30, a second air inlet 31 is arranged on the cylinder 20, a first accommodating cavity 21 is arranged in the cylinder 20, the first air inlet 23 and the second air inlet 31 are both communicated with the first accommodating cavity 21, the piston 40 is slidably arranged in the first accommodating cavity 21, the elastic part 50 is arranged in the first accommodating cavity 21, one end of the elastic part 50 is abutted against the piston 40, the other end of the elastic part is abutted against the inner wall of the cylinder cover 30, the sealing assembly 60 comprises a sealing shaft 61 and a sealing head 62, the sealing head 62 is arranged in the valve seat 10, one end of the sealing shaft 61 is connected with the piston 40 in an interference manner, the other end of the sealing shaft 61 is matched with the sealing head 62, the sealing shaft 61, the sealing head 62 and the liquid outlet 12 are coaxially arranged, and the piston 40 is configured to drive the sealing shaft 61 and the sealing head 62 to move during sliding relative to the first accommodating cavity 21, so that the sealing head 62 closes or opens the liquid outlet 12. The air pilot valve 100 can be used in conjunction with a variety of mating members to achieve a variety of different functions, thereby simplifying the internal structure of the spray coating device and reducing the cost of production.
This trade look valve 1000 includes the solenoid valve, go out liquid 200 and a plurality of air pilot valve 100, a plurality of air pilot valve 100 are arranged and are set up, and the liquid outlet 12 of a plurality of air pilot valve 100 all communicates with a liquid 200, the solenoid valve is connected with air pilot valve 100, different air pilot valve 100 are used for the coating intercommunication with different colours, when using this trade look valve 1000 and need the coating of a certain colour, solenoid valve control and the air pilot valve 100 work of the coating intercommunication that corresponds the colour, so that the coating that corresponds the colour flows out from a liquid 200, thereby carry out spraying work.
The reversing valve 2000 comprises a sealing head pair 400 and an air pilot valve 100, one end of a sealing head 62 is connected with a piston 40, the other end of the sealing head 62 is detachably connected with the sealing head pair 400, the sealing head pair 400 is in threaded connection with the sealing head 62 and is coaxially arranged with the sealing head 62, a liquid inlet 11 is arranged on the side wall of a valve seat 10, a liquid inlet 11 is arranged between the sealing head 62 and the sealing head pair 400, a liquid outlet 12 comprises a first liquid outlet 121 and a second liquid outlet 122, the first liquid outlet 121 and the second liquid outlet 122 are respectively arranged at two ends of the liquid inlet 11, the sealing head 62 is used for opening and closing the first liquid outlet 121, the sealing head pair 400 is used for opening and closing the second liquid outlet 122, when the reversing valve 2000 is used, the piston 40 slides and drives a sealing shaft 61, the sealing head 62 and the sealing head pair 400 to move so that the sealing head 62 closes the first liquid outlet 121, and the sealing head pair 400 opens the second liquid outlet 122, at this time, the coating flows out through the second liquid outlet 122, the piston 40 slides in the opposite direction to drive the sealing shaft 61, the sealing head 62 and the sealing head pair 400 to move in the opposite direction, so that the sealing head 62 opens the first liquid outlet 121, the sealing head pair 400 closes the second liquid outlet 122, and the coating flows out through the first liquid outlet 121, thereby achieving the purpose of reversing.
This ratio control valve 3000 includes stop nut 700 and air pilot valve 100, and stop nut 700 sets up in first holding chamber 21, and stop nut 700's one end and cylinder head 30 butt, and its other end and piston 40 butt, stop nut 700 are used for spacing piston 40, and cylinder head 30 and cylinder 20 threaded connection, ratio control valve 3000 are used for adjusting ratio control valve 3000's aperture through screwing up or unscrewing cylinder head 30 in the use.
The flow control valve 4000 comprises an air pilot valve 100, wherein the air pilot valve 100 comprises a sealing head 62, the sealing head 62 is in a conical shape, the sealing head 62 is used for changing a cone angle so as to adjust the matching between the sealing head 62 and a valve seat 10, and when the flow control valve 4000 is used, the cone angle of the sealing head 62 is changed so as to change the matching between the sealing head 62 and the valve seat 10, so that the purpose of adjusting the flow is achieved.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (14)
1. An air pilot valve, comprising:
the valve seat (10), wherein a liquid inlet (11) and a liquid outlet (12) are arranged on the valve seat (10);
the air cylinder (20), the air cylinder (20) is connected with the valve seat (10), one end, far away from the valve seat (10), of the air cylinder (20) is detachably provided with an air cylinder cover (30), a first air inlet (23) is formed in the air cylinder (20), a second air inlet (31) is formed in the air cylinder cover (30), a first accommodating cavity (21) is formed in the air cylinder (20), and the first air inlet (23) and the second air inlet (31) are communicated with the first accommodating cavity (21);
a piston (40), the piston (40) being slidably arranged in the first accommodation chamber (21);
the elastic piece (50) is arranged in the first accommodating cavity (21), one end of the elastic piece (50) is abutted with the piston (40), and the other end of the elastic piece (50) is abutted with the inner wall of the cylinder cover (30);
the sealing assembly (60) comprises a sealing shaft (61) and a sealing head (62), the sealing head (62) is arranged in the valve seat (10), one end of the sealing shaft (61) is connected with the piston (40), the other end of the sealing shaft (61) is in interference fit with the sealing head (62), and the sealing shaft (61), the sealing head (62) and the liquid outlet (12) are coaxially arranged;
the piston (40) is used for driving the sealing shaft (61) and the sealing head (62) to move in the process of sliding relative to the first accommodating cavity (21), so that the sealing head (62) closes or opens the liquid outlet (12).
2. The air pilot valve as claimed in claim 1, wherein a protrusion (63) is disposed at one end of the sealing shaft (61) close to the sealing head (62), the protrusion (63) is disposed along a circumferential direction of the sealing shaft (61), an installation groove (64) is formed in the sealing head (62), and one end of the sealing shaft (61) at which the protrusion (63) is disposed is in interference fit with the sealing head (62) through the installation groove (64).
3. The air pilot valve according to claim 2, wherein a second accommodating cavity (22) is further formed in the cylinder (20), the second accommodating cavity (22) is communicated with the first accommodating cavity (21), the sealing shaft (61) is arranged in the second accommodating cavity (22), and two ends of the sealing shaft (61) extend out of the second accommodating cavity (22);
be equipped with uide bushing (70) in second accommodation chamber (22), uide bushing (70) cover is established the outside of sealed axle (61), just uide bushing (70) with sealed axle (61) interference fit, in order to right sealed axle (61) guide and seal.
4. The air pilot valve according to claim 3, wherein the side wall of the cylinder (20) is opened with a detection port (24), and the detection port (24) is used for detecting liquid leakage.
5. An air pilot valve according to claim 1, wherein an end of the sealing shaft (61) remote from the piston (40) is sleeved with a first seal (65), the first seal (65) being for sealing against liquid.
6. The air pilot valve according to claim 1, wherein a piston sealing ring (66) is sleeved outside the piston (40), and the piston sealing ring (66) is in interference fit with the first accommodating cavity (21).
7. An air pilot valve according to claim 1, characterized in that a second seal (67) is arranged between the cylinder (20) and the valve seat (10), said second seal (67) being adapted to avoid liquid leakage.
8. An air pilot valve according to claim 1, characterized in that the outer wall of the cylinder (20) is provided with a scale.
9. A color change valve, characterized by comprising a solenoid valve, a liquid outlet member (200) and a plurality of air pilot valves (100) according to any one of claims 1-8;
the air pilot valves (100) are arranged in an arrayed mode, the liquid outlets (12) of the air pilot valves (100) are communicated with the liquid outlet piece (200), the electromagnetic valves are connected with all the air pilot valves (100), and different air pilot valves (100) are used for being communicated with different colors of paint;
the electromagnetic valve is used for controlling the air pilot valve (100) communicated with the paint with the corresponding color to work, so that the paint with the corresponding color flows out of the liquid outlet piece (200).
10. A reversing valve, comprising a sealing head pair (400) and an air pilot valve (100) according to any of claims 1-8;
one end of the sealing shaft (61) is connected with the piston (40), the other end of the sealing shaft (61) is detachably connected with the sealing head (62), the sealing head pair (400) is in threaded connection with the sealing head (62), and the sealing head pair (400) and the sealing head (62) are coaxially arranged;
the liquid inlet (11) is arranged on the side wall of the valve seat (10), the liquid inlet (11) is positioned between the sealing head (62) and the sealing head pair (400), the liquid outlet (12) comprises a first liquid outlet (121) and a second liquid outlet (122), the first liquid outlet (121) and the second liquid outlet (122) are respectively arranged at two ends of the liquid inlet (11), the sealing head (62) is used for opening and closing the first liquid outlet (121), and the sealing head pair (400) is used for opening and closing the second liquid outlet (122);
the piston (40) is used for driving the sealing shaft (61), the sealing head (62) and the sealing head pair (400) to move in the sliding process so that the sealing head (62) closes the first liquid outlet (121) and the sealing head pair (400) opens the second liquid outlet (122), and the piston (40) is used for driving the sealing shaft (61), the sealing head (62) and the sealing head pair (400) to move in the reverse direction so that the sealing head (62) opens the first liquid outlet (121) and the sealing head pair (400) closes the second liquid outlet (122) in the reverse sliding process.
11. A reversing valve according to claim 10, wherein both the sealing head (62) and the sealing head pair (400) are fitted with sealing O-rings (600).
12. A reversing valve according to claim 10, characterized in that the reversing valve (2000) further comprises an outlet counterpoise (500), the outlet counterpoise (500) being connected to the second liquid outlet (122).
13. Proportioning control valve, comprising a limit nut (700) and an air pilot valve (100) according to any of claims 1-8;
the limiting nut (700) is arranged in the first accommodating cavity (21), one end of the limiting nut (700) is abutted against the cylinder cover (30), the other end of the limiting nut (700) is abutted against the piston (40), and the limiting nut (700) is used for limiting the piston (40);
the cylinder cover (30) is in threaded connection with the cylinder (20), and the proportioning control valve (3000) is used for adjusting the opening degree of the proportioning control valve (3000) by screwing or unscrewing the cylinder cover (30) during use.
14. A flow control valve comprising the air pilot valve (100) of any one of claims 1-8, the air pilot valve (100) comprising a sealing head (62), the sealing head (62) being conically shaped, the sealing head being configured to change a cone angle to adjust a fit between the sealing head (62) and the valve seat (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111169701.4A CN113833869A (en) | 2021-10-08 | 2021-10-08 | Air pilot valve, color changing valve, reversing valve, proportioning control valve and flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111169701.4A CN113833869A (en) | 2021-10-08 | 2021-10-08 | Air pilot valve, color changing valve, reversing valve, proportioning control valve and flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113833869A true CN113833869A (en) | 2021-12-24 |
Family
ID=78968377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111169701.4A Pending CN113833869A (en) | 2021-10-08 | 2021-10-08 | Air pilot valve, color changing valve, reversing valve, proportioning control valve and flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113833869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117181115A (en) * | 2023-11-08 | 2023-12-08 | 常州江河干燥设备有限公司 | Efficient production line of granulator and working method thereof |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014510A (en) * | 1975-09-05 | 1977-03-29 | Midcon Pipeline Equipment Co. | Pilot valve |
| JPH0571547U (en) * | 1992-03-03 | 1993-09-28 | 三菱自動車工業株式会社 | Open / close valve with flow control function |
| JPH06193745A (en) * | 1992-12-24 | 1994-07-15 | Trinity Ind Corp | Automatic valve |
| JPH07251103A (en) * | 1994-03-14 | 1995-10-03 | Abb Ransburg Kk | Coating machine |
| JPH08257443A (en) * | 1995-03-27 | 1996-10-08 | Honda Motor Co Ltd | Electrostatic spray coating device for conducting coating material |
| JPH09248499A (en) * | 1996-03-14 | 1997-09-22 | Trinity Ind Corp | Color replacing valve device |
| CN200946693Y (en) * | 2006-09-19 | 2007-09-12 | 宝山钢铁股份有限公司 | Hydraulic guide control water valve |
| CN101126453A (en) * | 2007-08-17 | 2008-02-20 | 方建生 | Liquid-controlled type multi-purpose valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
| CN201427094Y (en) * | 2009-03-12 | 2010-03-24 | 袁铁柱 | Airless spraying unit |
| JP2011117519A (en) * | 2009-12-02 | 2011-06-16 | Trinity Industrial Co Ltd | Valve device |
| CN202392159U (en) * | 2012-01-04 | 2012-08-22 | 温州市日特轻工机械有限公司 | Reversing valve |
| CN103429355A (en) * | 2011-06-09 | 2013-12-04 | Abb株式会社 | Color selection valve device |
| CN105909837A (en) * | 2015-02-20 | 2016-08-31 | Vir里齐奥工程师阀门工业股份公司 | Pressure Independent Hydraulic Valve For Flow Control And Regulation |
| JP2019168036A (en) * | 2018-03-23 | 2019-10-03 | トリニティ工業株式会社 | Valve device |
| CN111720580A (en) * | 2019-03-22 | 2020-09-29 | Smc 株式会社 | Fluid control valve |
| CN212107023U (en) * | 2020-03-30 | 2020-12-08 | 孙梅 | Pneumatic stop reversing valve |
| CN214171335U (en) * | 2020-12-31 | 2021-09-10 | 南京派迪克智能装备有限公司 | Air inlet valve with adjustable opening degree and closing degree |
-
2021
- 2021-10-08 CN CN202111169701.4A patent/CN113833869A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4014510A (en) * | 1975-09-05 | 1977-03-29 | Midcon Pipeline Equipment Co. | Pilot valve |
| JPH0571547U (en) * | 1992-03-03 | 1993-09-28 | 三菱自動車工業株式会社 | Open / close valve with flow control function |
| JPH06193745A (en) * | 1992-12-24 | 1994-07-15 | Trinity Ind Corp | Automatic valve |
| JPH07251103A (en) * | 1994-03-14 | 1995-10-03 | Abb Ransburg Kk | Coating machine |
| JPH08257443A (en) * | 1995-03-27 | 1996-10-08 | Honda Motor Co Ltd | Electrostatic spray coating device for conducting coating material |
| JPH09248499A (en) * | 1996-03-14 | 1997-09-22 | Trinity Ind Corp | Color replacing valve device |
| CN200946693Y (en) * | 2006-09-19 | 2007-09-12 | 宝山钢铁股份有限公司 | Hydraulic guide control water valve |
| CN101126453A (en) * | 2007-08-17 | 2008-02-20 | 方建生 | Liquid-controlled type multi-purpose valve |
| CN201265694Y (en) * | 2008-09-11 | 2009-07-01 | 江苏星A包装机械集团有限公司 | Pneumatic liquid feeding valve |
| CN201427094Y (en) * | 2009-03-12 | 2010-03-24 | 袁铁柱 | Airless spraying unit |
| JP2011117519A (en) * | 2009-12-02 | 2011-06-16 | Trinity Industrial Co Ltd | Valve device |
| CN103429355A (en) * | 2011-06-09 | 2013-12-04 | Abb株式会社 | Color selection valve device |
| CN202392159U (en) * | 2012-01-04 | 2012-08-22 | 温州市日特轻工机械有限公司 | Reversing valve |
| CN105909837A (en) * | 2015-02-20 | 2016-08-31 | Vir里齐奥工程师阀门工业股份公司 | Pressure Independent Hydraulic Valve For Flow Control And Regulation |
| JP2019168036A (en) * | 2018-03-23 | 2019-10-03 | トリニティ工業株式会社 | Valve device |
| CN111720580A (en) * | 2019-03-22 | 2020-09-29 | Smc 株式会社 | Fluid control valve |
| CN212107023U (en) * | 2020-03-30 | 2020-12-08 | 孙梅 | Pneumatic stop reversing valve |
| CN214171335U (en) * | 2020-12-31 | 2021-09-10 | 南京派迪克智能装备有限公司 | Air inlet valve with adjustable opening degree and closing degree |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117181115A (en) * | 2023-11-08 | 2023-12-08 | 常州江河干燥设备有限公司 | Efficient production line of granulator and working method thereof |
| CN117181115B (en) * | 2023-11-08 | 2024-02-06 | 常州江河干燥设备有限公司 | Efficient production line of granulator and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4163523A (en) | Multicolor paint dispensing system having a pressure responsive color change valve | |
| CA2805185C (en) | Stepper motor operated balanced flow control valve | |
| US4828218A (en) | Multiple mode regulator | |
| CN113833869A (en) | Air pilot valve, color changing valve, reversing valve, proportioning control valve and flow control valve | |
| CA1108506A (en) | Constant flow valve | |
| US6619563B2 (en) | Manifold block for flow control in coating applications | |
| CA2915275A1 (en) | Stepper motor operated balanced flow control valve | |
| CN110374956B (en) | Rotation drive device and robot arm of robot equipped with the rotation drive device | |
| US4014510A (en) | Pilot valve | |
| US3443578A (en) | Color select valve for spray guns | |
| US7011290B2 (en) | Pneumatically-controlled needle valve | |
| US4503884A (en) | Angle globe valve | |
| CN113291090B (en) | Pigment automatic measurement mixing of colors device for fine arts drawing | |
| GB1040515A (en) | Rotary plug valve | |
| CN110694819A (en) | Color-changing valve terminal for multifunctional manipulator | |
| US4489758A (en) | Multiple function valve assembly | |
| CN201552087U (en) | Modularized pneumatic switch control valve, and painting device and painting robot adopting color changing valve | |
| CN211190666U (en) | Color-changing valve terminal for multifunctional manipulator | |
| US4549572A (en) | Pressure compensated fluid flow regulator | |
| US9371936B2 (en) | Balanced globe valve assembly | |
| GB2159243A (en) | Paint change valve | |
| CN209303123U (en) | A kind of micro- constant gluing mixing head | |
| GB1280111A (en) | Raft inflation mechanism | |
| CN220910479U (en) | Flow regulating valve | |
| CN214398164U (en) | Discharging mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |