CN112855986A - Multi-needle valve terminal - Google Patents
Multi-needle valve terminal Download PDFInfo
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- CN112855986A CN112855986A CN202011624837.5A CN202011624837A CN112855986A CN 112855986 A CN112855986 A CN 112855986A CN 202011624837 A CN202011624837 A CN 202011624837A CN 112855986 A CN112855986 A CN 112855986A
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- valve
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- piston cavity
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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
- F16K11/0712—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 particular spool-valve sealing 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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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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
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
- F16K31/406—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a piston
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a multi-needle valve island, which comprises a confluence plate and an electromagnetic valve, wherein the electromagnetic valve is a single-electric-control electromagnetic valve and/or a double-electric-control electromagnetic valve, the double-electric-control electromagnetic valve comprises a valve body, a valve rod and a rear cover, the valve body is provided with a valve cavity and an air inlet, a working port and an air outlet which are communicated with the valve cavity, one side of the valve body is provided with two pilot assemblies, and the two pilot assemblies are arranged in parallel along the extending direction vertical to the valve body; the two pilot assemblies comprise pilot seats, a pilot cavity and a second piston cavity are arranged in the pilot seats, valve ports are arranged in the pilot seats, and coil assemblies are arranged on the pilot seats; wherein a second piston cavity is arranged corresponding to the valve rod; a pilot channel and a connecting channel are arranged in the valve body, one end of the pilot channel is communicated with the air inlet, and the other end of the pilot channel is provided with two branches which are correspondingly communicated with the two valve ports one by one; one end of the connecting channel is communicated with the first piston cavity, and the other end of the connecting channel is communicated with the other second piston cavity. The invention has the advantages of simple structure, convenient wiring and firm installation.
Description
Technical Field
The invention relates to the technical field of gas-electric control, in particular to a multi-needle valve island.
Background
The valve island is a control component composed of a plurality of electric control valves, and is a new generation of gas-electricity integrated control component. In recent decades, the valve island has been developed rapidly, and is a valve island with a multi-needle interface at first, and then is developed into a valve island with a field bus, and then a programmable valve island and a modular valve island appear.
Generally, a single electric control electromagnetic valve is mainly connected to a valve island, and along with the continuous progress of science and technology, the gas-electric control is continuously upgraded and updated, and the current gas-electric control cannot be met by the single electric control electromagnetic valve. Therefore, the double-electric-control electromagnetic valve adopted by people is a common electromagnetic valve, such as 'a double-control electromagnetic valve' disclosed in CN201921470746.3, the Chinese patent application number can enable the valve rod to be quickly and accurately reversed, but for the single-electric-control electromagnetic valve, circuits are distributed at two ends of the valve body, so that the whole valve island occupies a large space, wiring is required to be performed on two sides, integrated wiring cannot be realized, and the installation is relatively troublesome.
Moreover, a socket matched with a plug on the electromagnetic valve is arranged in the valve island, the socket is generally made of an elastic clamping piece, for example, in the use process of the power socket which is disclosed in the Chinese patent application No. CN93235190.5 and is strengthened by the elastic clamping piece, after the power socket is plugged and pulled for many times, the elastic clamping piece is easy to lose elasticity, the plug can not be clamped, a circuit is disconnected, and the connection is not firm.
Disclosure of Invention
The invention aims to provide a multi-needle valve island aiming at the defects and shortcomings of the prior art, and the multi-needle valve island has the advantages of simple structure, convenience in wiring and firmness in installation.
The technical purpose of the invention is realized by the following technical scheme: the multi-needle valve island comprises a bus plate and electromagnetic valves, wherein valve sealing gaskets are arranged between the bus plate and the electromagnetic valves in a pressing mode, a plurality of electromagnetic valves are arranged on the bus plate side by side, the electromagnetic valves are single-electric-control electromagnetic valves and/or double-electric-control electromagnetic valves, each double-electric-control electromagnetic valve comprises a valve body, a valve cavity is arranged in each valve body, a valve rod is arranged in each valve cavity in a sliding mode, an air inlet and two air outlets which are communicated with the valve cavities are formed in each valve body, a rear cover is arranged on one side of each valve body, a first piston cavity corresponding to each valve rod is arranged in each rear cover, a first piston is arranged in each first piston cavity in a sliding mode, each first piston is abutted to each valve rod, two pilot assemblies are arranged on the other side of each valve body, and the two pilot assemblies are;
the two pilot assemblies respectively comprise a pilot seat fixed on the valve body, a pilot cavity and a second piston cavity which are mutually communicated are arranged in the pilot seat, a valve port communicated with the pilot cavity is arranged in the pilot seat, and a coil assembly for opening and closing the valve port is arranged on the pilot seat; one second piston cavity is arranged corresponding to the valve rod, and a second piston abutting against the valve rod is arranged in the second piston cavity;
a pilot channel and a connecting channel are arranged in the valve body, one end of the pilot channel is communicated with the air inlet, and the other end of the pilot channel is provided with two branches which are correspondingly communicated with the two valve ports one by one; one end of the connecting channel is communicated with the first piston cavity, and the other end of the connecting channel is communicated with the other second piston cavity; be equipped with in the cylinder manifold with guide's subassembly electric connection's circuit board assembly, it has three gas port passageway to run through on the cylinder manifold, it is three gas port passageway all sets up along a plurality of solenoid valve's array orientation, three gas port passageway with air inlet, two the gas vent one-to-one communicates.
Furthermore, an installation channel penetrates through the bus board, the installation channel is arranged in parallel with the air port channel, the circuit board assembly is accommodated in the installation channel, and two ports of the installation channel are respectively provided with a fixed panel in a sealing manner; the circuit board assembly is convenient to install, and plays a certain protection role in the circuit board assembly.
Furthermore, a DSUB15 pin connector is arranged on the circuit board assembly, and the DSUB15 pin connector passes through one of the fixing panels and is exposed outside the bus board; the circuit is conveniently gathered to DSUB15 needle connector, improves the integrated level, makes simple to operate.
Furthermore, a first balance hole is arranged in the rear cover, one end of the first balance hole is communicated with the first piston cavity, and the other end of the first balance hole at least penetrates through two outer side surfaces of the rear cover; a second balance hole is formed in the guide seat, one end of the second balance hole is communicated with the second piston cavity, and the other end of the second balance hole at least penetrates through two outer side surfaces of the guide seat; the air pressure balance in the first piston cavity and the second piston cavity is ensured, so that the first piston and the second piston move stably and quickly; after the first balance hole or the second balance hole is blocked during installation, other perforated surfaces can still normally suck air and then exhaust air.
Furthermore, the first balance hole and the second balance hole are respectively internally provided with a breathing filter element; the device has the function of reducing noise for discharged gas and also has the function of preventing dust.
Furthermore, a sealing plug is accommodated in the second piston cavity communicated with the connecting channel, an O-ring is arranged between the sealing plug and the side wall of the second piston cavity, an air vent is arranged on the sealing plug in a penetrating manner, one end of the air vent is communicated with the connecting channel, and the other end of the air vent is communicated with the pilot cavity corresponding to the second piston cavity; the tightness of the connecting channel is ensured.
Further, the coil assemblies all comprise sleeves, the bottom ends of the sleeves are fixed on the guide seats through pressing plates, static iron cores are fixed at the top ends of the sleeves, the coil bodies are sleeved on the outer sides of the sleeves, inner cavities of the sleeves are communicated with the guide cavities, movable iron cores are arranged in the sleeves in a sliding mode, first springs are arranged between the movable iron cores and the sleeves in a supporting mode, and the first springs always enable the movable iron cores to tend to close the valve ports.
Furthermore, an elastic clamping piece is further arranged on the circuit board assembly, and a fixed seat is wrapped outside the elastic clamping piece; a coil sealing gasket is arranged between the coil body and the bus board in a pressing mode, and pins which are in inserting fit with the elastic clamping pieces are arranged on the coil body; effectively ensures the elasticity of the elastic clamping piece, avoids the elastic failure, ensures the connection to be firm and ensures the smoothness of the circuit.
Furthermore, the bottom end of the movable iron core is provided with a convex edge for abutting against one end of the first spring, and the bottom end of the sleeve is provided with a step for abutting against the other end of the first spring.
Further, all be equipped with manual button on the guide seat, manual button with guide seat sliding fit, manual button with it corresponds the setting to move the iron core, manual button with it is equipped with the second spring to support between the guide seat, the second spring orders about manual button keeps away from move the trend of iron core, be equipped with in the guide seat and be used for restricting the separation blade of manual button roll-off.
The invention has the beneficial effects that: the back cover is arranged on one side of the valve body of the double-electric control electromagnetic valve, the two pilot assemblies are arranged on the other side of the valve body and arranged in parallel along the extending direction vertical to the valve body, each pilot assembly comprises a pilot seat fixed on the valve body, a pilot cavity and a second piston cavity which are mutually communicated are arranged in each pilot seat, a valve port communicated with the pilot cavity is arranged in each pilot seat, and a coil assembly for opening and closing the valve port is arranged on each pilot seat; a second piston cavity is arranged corresponding to the valve rod, and a second piston abutting against the valve rod is arranged in the second piston cavity; a pilot channel and a connecting channel are arranged in the valve body, one end of the pilot channel is communicated with the air inlet, and the other end of the pilot channel is provided with two branches which are correspondingly communicated with the two valve ports one by one; one end of the connecting channel is communicated with the first piston cavity, and the other end of the connecting channel is communicated with the other second piston cavity; by reasonably planning the gas direction, the corresponding coil assembly is electrified during reversing, so that the corresponding valve port is opened, and finally the valve rod is pushed to slide for reversing, thereby realizing the reversing function of the electromagnetic valve; through the reasonable layout of the structure, the two pilot assemblies are positioned on the same side, so that the wiring is convenient to integrate, and the problem of troublesome line connection in the prior art is effectively solved; the lengths of the electromagnetic valve and the bus board are effectively shortened, the size is smaller, short, small and compact, the installation space is greatly shortened, and the installation is convenient; generally, the invention has the advantages of simple structure, reasonable layout, improved integration level, convenient wiring and firm installation.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the overall explosion of the present invention.
Fig. 3 is a schematic view of the overall structure of the dual electric control solenoid valve of the present invention.
Fig. 4 is a schematic view of the overall structure of the dual electric control solenoid valve in another direction according to the present invention.
Fig. 5 is a sectional view of the dual electric control solenoid valve of the present invention.
Fig. 6 is a schematic sectional view of a-a in fig. 5.
Fig. 7 is a schematic sectional view of B-B in fig. 5.
Fig. 8 is a schematic structural view of the rear cover in the present invention.
Fig. 9 is a schematic structural view of a guide seat in the present invention.
Fig. 10 is a side schematic view of a bus bar of the present invention.
Fig. 11 is an enlarged view of the resilient clip of the present invention.
FIG. 12 is a schematic sectional view of another dual electric solenoid valve according to the present invention.
Shown in the figure: 1-a valve body; 1.1-valve cavity; 1.2-gas inlet; 1.3-working port; 1.4-exhaust port; 1.5-a pilot channel; 1.6-connecting the channels; 2-a valve stem; 2.1-ring groove; 3-rear cover; 3.1 — a first piston chamber; 3.2-first balancing holes; 4-a first piston; 5-a pilot assembly; 51-a pilot seat; 51.1-pilot chamber; 51.2 — a second piston chamber; 51.3-valve port; 51.4-second balance hole; 52-a coil assembly; 521-a sleeve; 521.1-step; 522-a press plate; 523-static iron core; 524-a coil body; 525-movable iron core; 525.1-convex edge; 526-a first spring; 527-pin; 528-screw cap; 53-a second piston; 54-manual button; 55-a second spring; 56-baffle plate; 6-flat ring; 7-Y type seal ring; 8-a breathing filter element; 9-a sealing plug; 9.1-gas-guide holes; 10-O-shaped ring; 11-spring seats; 12-a spring housing; 13-a third spring; 14-a bus bar; 14.1-gas port channel; 14.2-installing a channel; 15-a valve seal; 16-a circuit board assembly; 16.1-DSUB15 pin connector; 16.2-resilient clip; 16.3-fixed seat; 17-fixing the panel; 18-coil gasket; 19-DIN rail.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:
as shown in fig. 1 to 11, the multi-needle valve island includes a manifold 14 and solenoid valves, a valve gasket 15 is pressed between the manifold 14 and the solenoid valves, a plurality of solenoid valves are arranged on the manifold 14 side by side, the solenoid valves are single-electric-control solenoid valves and/or double-electric-control solenoid valves, the double-electric-control solenoid valves include a valve body 1, a valve cavity 1.1 is arranged in the valve body 1, a valve rod 2 is slidably arranged in the valve cavity 1.1, an air inlet 1.2 and two air outlets 1.4 communicating with the valve cavity 1.1 are arranged on the valve body 1, a rear cover 3 is arranged on one side of the valve body 1, a first piston cavity 3.1 corresponding to the valve rod 2 is arranged in the rear cover 3, a first piston 4 is slidably arranged in the first piston cavity 3.1, the first piston 4 is abutted to the valve rod 2, two pilot assemblies 5 are arranged on the other side of the valve body 1, and the two;
the two pilot assemblies 5 respectively comprise a pilot seat 51 fixed on the valve body 1, a pilot cavity 51.1 and a second piston cavity 51.2 which are communicated with each other are arranged in the pilot seat 51, a valve port 51.3 communicated with the pilot cavity 51.1 is arranged in the pilot seat 51, and a coil assembly 52 for opening and closing the valve port 51.3 is arranged on the pilot seat 51; a second piston cavity 51.2 is arranged corresponding to the valve rod 2, and a second piston 53 abutting against the valve rod 2 is arranged in the second piston cavity 51.2;
a pilot channel 1.5 and a connecting channel 1.6 are arranged in the valve body 1, one end of the pilot channel 1.5 is communicated with the air inlet 1.2, and the other end of the pilot channel 1.5 is provided with two branches which are communicated with the two valve ports 51.3 in a one-to-one correspondence manner; one end of the connecting channel 1.6 is communicated with the first piston cavity 3.1, and the other end of the connecting channel 1.6 is communicated with the other second piston cavity 51.2;
be equipped with the circuit board subassembly 16 with guide's subassembly 5 electric connection in the cylinder manifold 14, it has three gas port passageway 14.1 to run through on the cylinder manifold 14, and three gas port passageway 14.1 all sets up along the array direction of a plurality of solenoid valves, and three gas port passageway 14.1 communicates with air inlet 1.2, two gas vents 1.4 one-to-one.
Specifically, the valve body 1 is also provided with two working ports 1.3 communicated with the valve cavity 1.1, the air inlet 1.2 and the two air outlets 1.4 are both arranged on the same side surface of the valve body 1, and the two working ports 1.3 are arranged on opposite surfaces; the three air port channels 14.1 are used for providing channels for centralized air supply or air exhaust for each electromagnetic valve, so that centralized installation is facilitated.
It should be noted that the installation on the bus board 14 is not limited to the solenoid valve disclosed in the present invention, and the existing single electrically controlled solenoid valve can be installed at the same time, so as to realize the combined installation, and make the installation convenient (refer to fig. 1 and fig. 2).
An installation channel 14.2 penetrates through the bus board 14, the installation channel 14.2 is parallel to the air port channel 14.1, the circuit board assembly 16 is accommodated in the installation channel 14.2, and two ports of the installation channel 14.2 are respectively provided with a fixed panel 17 in a sealing manner; the circuit board assembly 16 is provided with a DSUB15 pin connector 16.1, and a DSUB15 pin connector 16.1 passes through one of the fixing panels 17 and is exposed outside the bus board 14.
Preferably, a DIN rail 19 is provided at the bottom end of the manifold plate 14 to facilitate installation of the multi-needle valve island.
Specifically, a plurality of annular grooves 2.1 are formed in the valve rod 2, and flat rings 6 are sleeved between the adjacent annular grooves 2.1; the annular grooves 2.1 are arranged corresponding to the air ports to ensure normal air intake and exhaust; the first piston 4 and the second piston 53 are respectively sleeved with a Y-shaped sealing ring 7, and the notches of the Y-shaped sealing rings 7 are back to the valve rod 2; the relative tightness of the first piston chamber 3.1 and the second piston chamber 51.2 is improved.
A first balance hole 3.2 is arranged in the rear cover 3, one end of the first balance hole 3.2 is communicated with the first piston cavity 3.1, and the other end of the first balance hole 3.2 at least penetrates through two outer side surfaces of the rear cover 3, so that the other surfaces can normally suck and exhaust air even if the first balance hole 3.2 at one surface is blocked after installation; a second balance hole 51.4 is arranged in the pilot base 51, one end of the second balance hole 51.4 is communicated with the second piston cavity 51.2, and the other end of the second balance hole 51.4 at least penetrates through two outer side surfaces of the pilot base 51, so that even if the second balance hole 51.4 is blocked after installation, other surfaces can normally suck and exhaust air; the first balancing hole 3.2 and the second balancing hole 51.4 house a breathing cartridge 8, respectively (see in particular fig. 8 and 9).
When the first piston 4 slides downwards or downwards relative to the rear cover 3, the first balance hole 3.2 exhausts internal gas or sucks external gas; when the second piston 53 slides downwards or downwards relative to the guide seat 53, the second balance hole 5.4 exhausts internal gas or sucks external gas, so that the corresponding piston moves stably and reliably.
A sealing plug 9 is arranged in a second piston cavity 51.2 communicated with the connecting channel 1.6, an O-shaped ring 10 is arranged between the sealing plug 9 and the side wall of the second piston cavity 51.2, an air guide hole 9.1 penetrates through the sealing plug 9, one end of the air guide hole 9.1 is communicated with the connecting channel 1.6, and the other end of the air guide hole 9.1 is communicated with a pilot cavity 51.1 corresponding to the second piston cavity 51.2; specifically, an O-shaped ring 10 is also arranged at the position, corresponding to the connecting channel 1.6, of the valve body 1, so that the sealing performance of the connecting channel 1.6 is ensured.
It should be noted that the two pilot assemblies 5 have the same structure, and the two pilot bases 51 are also manufactured by the same mold, which is different in that the second piston 53 corresponding to the valve rod 2 is arranged in the left pilot base 51, and the right pilot base 51 is filled with the sealing plug 9, so that the air passage is ensured to normally pass through, and the mold opening for the right pilot base 51 is not required again, that is, the cost is saved, and the installation is convenient (refer to fig. 6 specifically).
The coil assemblies 52 all comprise sleeves 521, the bottom ends of the sleeves 521 are fixed on the guide seat 51 through pressing plates 522, the top ends of the sleeves 521 are fixed with static iron cores 523, the outer sides of the sleeves 521 are sleeved with coil bodies 524, the inner cavities of the sleeves 521 are communicated with the guide cavity 51.1, movable iron cores 525 are arranged in the sleeves 521 in a sliding mode, first springs 526 are arranged between the movable iron cores 525 and the sleeves 521 in a supporting mode, and the first springs 526 always tend to enable the movable iron cores 525 to close the valve ports 51.3; specifically, the outer end of the stationary core 523 is further provided with a nut 528.
The circuit board assembly 16 is also provided with an elastic clamping piece 16.2, and the outer side of the elastic clamping piece 16.2 is wrapped with a fixed seat 16.3; a coil sealing gasket 18 is pressed between the coil body 524 and the bus board 14, and pins 527 which are in inserted connection and matching with the elastic clips 16.2 are arranged on the coil body 524; preferably, the fixing base 16.3 is made of plastic, which also maintains the stability while ensuring its elasticity.
Under normal conditions, the movable iron core 525 is under the elastic force of the first spring 526, and the corresponding valve port 51.3 is tightly closed, when one of the coil bodies 524 is energized and generates electromagnetic force, the corresponding stationary iron core 523 attracts the lower movable iron core 525, overcoming the elastic force of the first spring 526, and the corresponding valve port 51.3 is opened.
The bottom end of the movable iron core 525 is provided with a convex edge 525.1 for abutting against one end of the first spring 526, and the bottom end of the sleeve 521 is provided with a step 521.1 for abutting against the other end of the first spring 526.
The pilot bases 51 are respectively provided with a manual button 54, the manual buttons 54 are in sliding fit with the pilot bases 51, the manual buttons 54 are arranged corresponding to the movable iron core 525, a second spring 55 is arranged between the manual buttons 54 and the pilot bases 51 in a supporting manner, the second spring 55 drives the manual buttons 54 to move away from the movable iron core 525, and a blocking piece 56 used for limiting the manual buttons 54 to slide out is arranged in the pilot bases 51; preferably, the inner end of the manual button 54 is tapered.
When the valve port 51.3 is opened and closed manually, the manual button 54 can be pressed manually to overcome the elastic force of the second spring 55, and the inner end of the manual button 54 pushes the movable iron core 525, so that the movable iron core 525 overcomes the elastic force of the first spring 526, and the corresponding valve port 51.3 is opened.
The specific working principle of the electromagnetic valve is as follows: as specifically illustrated in fig. 3 to 9, normally, two working ports 1.3 are connected to corresponding actuators, an air inlet 1.2 and two exhaust ports 1.4 are connected to three air port channels 14.1 one by one, a left valve port 51.3 is not opened, a right pilot assembly 5 is powered on, the corresponding static iron core 523 attracts the movable iron core 525 to open the right valve port 51.3, the gas enters the valve cavity 1.1 through the gas inlet 1.2, a part of the gas is shunted to the two valve ports 51.3 through the pilot channel 1.5, the left pilot gas cannot flow into the left pilot cavity 51.1 because the corresponding movable iron core 525 closes the valve port 51.3, the pilot gas on the right side sequentially passes through the valve port 51.3, the pilot cavity 51.1, the gas guide hole 9.1 and the connecting channel 1.6, finally flows into the first piston cavity 3.1 to push the first piston 4, so that the valve stem 2 moves upwards with respect to the valve body 1, while the valve stem 2 also pushes the second piston 53 and keeps the valve stem 2 above; the other part of the gas flows to the lower working port 1.3 through the valve cavity 1.1, meanwhile, the lower exhaust port 1.4 is in a closed state, and the gas in the actuating element is exhausted to the corresponding gas port channel 14.1 through the upper working port 1.3 and the valve cavity 1.1 and finally from the upper exhaust port 1.4;
when the direction needs to be changed, the left pilot assembly 5 is electrified, the right pilot assembly 5 is not electrified, so that the left valve port 51.3 is opened, the right valve port 51.3 is closed, the left pilot gas sequentially flows into the corresponding second piston cavity 51.2 through the corresponding valve port 51.3 and the pilot cavity 51.1 to push the second piston 53, so that the valve rod 2 moves downwards relative to the valve body 1, and meanwhile, the valve rod 2 pushes the first piston 4 to move downwards, so that the direction changing action is completed, at the moment, the upper exhaust port 1.4 is closed, the lower exhaust port 1.4 is opened, the other part of the gas in the gas inlet 1.2 flows to the upper working port 1.3 through the valve cavity 1.1, and the gas in the actuating element flows to the corresponding gas port channel 14.1 through the lower working port 1.3 and the valve cavity 1.1 and finally is discharged to the corresponding gas port channel 14..
It is worth mentioning that the above structure is only specifically explained by using the dual electric control electromagnetic valve as the two-position five-way valve, for further explanation, without changing the basic structure, as described in detail with the three-position, five-way valve shown in fig. 12, only the number and distribution of the annular grooves 2.1 on the valve stem 2 are changed, a spring seat 11 is pressed between the valve body 1 and the rear cover 3, the spring seat 11 is in a sleeve shape, the end part of the valve rod 2 penetrates through the spring seat 11 and extends into the first piston cavity 3.1, two spring sleeves 12 are sleeved in the spring seat 11, the two spring sleeves 12 are distributed at two ends of the spring seat 11 and are in sliding fit with the valve rod 2, a stepped shaft matched with the stop of the spring sleeve 12 at one side is arranged on the valve rod 2, a shaft snap spring matched with the stop of the spring sleeve 12 at the other side is also arranged on the valve rod 2, a third spring 13 is arranged between the two spring sleeves 12 in a propping manner, and the third spring 13 always tends to keep the valve rod 2 at a middle position; the working principle is basically the same as that of the two-position five-way valve, and only when the valve rod 2 is reversed, the elastic force of the third spring 13 needs to be overcome and the valve rod is kept at the reversed position, and specific working principles are not repeated here.
It will be understood that the terms "intermediate," "upper," "lower," "left," "right," "top," "right," "left," "above," "back," "middle," and the like, when used in reference to an orientation or positional relationship illustrated in the drawings, are used merely to facilitate the description of the invention, and do not indicate or imply that the referenced device or element must be constructed and operated in a particular orientation and therefore should not be considered as limiting the invention.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. Many needles valve island, including cylinder manifold (14) and solenoid valve, cylinder manifold (14) with the pressure is equipped with valve packing pad (15) between the solenoid valve, be equipped with a plurality of side by side on cylinder manifold (14) the solenoid valve, its characterized in that: the electromagnetic valve is a single electric control electromagnetic valve and/or a double electric control electromagnetic valve, the double electric control electromagnetic valve comprises a valve body (1), a valve cavity (1.1) is arranged in the valve body (1), a valve rod (2) is arranged in the valve cavity (1.1) in a sliding manner, the valve body (1) is provided with an air inlet (1.2) and two air outlets (1.4) which are communicated with the valve cavity (1.1), a rear cover (3) is arranged on one side of the valve body (1), a first piston cavity (3.1) corresponding to the valve rod (2) is arranged in the rear cover (3), a first piston (4) is arranged in the first piston cavity (3.1) in a sliding manner, the first piston (4) is abutted against the valve rod (2), two pilot assemblies (5) are arranged on the other side of the valve body (1), and the two pilot assemblies (5) are arranged in parallel along the extending direction vertical to the valve body (1);
the two pilot assemblies (5) respectively comprise a pilot seat (51) fixed on the valve body (1), a pilot cavity (51.1) and a second piston cavity (51.2) which are communicated with each other are arranged in the pilot seat (51), a valve port (51.3) communicated with the pilot cavity (51.1) is arranged in the pilot seat (51), and a coil assembly (52) for opening and closing the valve port (51.3) is arranged on the pilot seat (51); one second piston cavity (51.2) is arranged corresponding to the valve rod (2), and a second piston (53) which is abutted against the valve rod (2) is arranged in the second piston cavity (51.2);
a pilot channel (1.5) and a connecting channel (1.6) are arranged in the valve body (1), one end of the pilot channel (1.5) is communicated with the air inlet (1.2), and the other end of the pilot channel (1.5) is provided with two branches which are correspondingly communicated with the two valve ports (51.3) one by one; one end of the connecting channel (1.6) is communicated with the first piston cavity (3.1), and the other end of the connecting channel (1.6) is communicated with the other second piston cavity (51.2);
be equipped with in cylinder manifold (14) with guide's subassembly (5) electric connection's circuit board subassembly (16), it has three gas port passageway (14.1) to run through on cylinder manifold (14), and is three gas port passageway (14.1) all follows a plurality of the array orientation setting of solenoid valve, and is three gas port passageway (14.1) with air inlet (1.2), working port (1.3) two gas vent (1.4) one-to-one intercommunication.
2. The multi-needle valve island of claim 1, wherein a mounting channel (14.2) penetrates through the bus plate (14), the mounting channel (14.2) and the air port channel (14.1) are arranged in parallel, the circuit board assembly (16) is accommodated in the mounting channel (14.2), and two ports of the mounting channel (14.2) are respectively provided with a fixing panel (17) in a sealing manner.
3. The multi-pin valve island of claim 2, wherein the circuit board assembly (16) is provided with a DSUB15 pin connector (16.1), and the DSUB15 pin connector (16.1) passes through one of the fixing panels (17) and is exposed outside the bus bar (14).
4. The multi-needle valve island of claim 1, wherein: a first balance hole (3.2) is formed in the rear cover (3), one end of the first balance hole (3.2) is communicated with the first piston cavity (3.1), and the other end of the first balance hole (3.2) at least penetrates through two outer side faces of the rear cover (3); a second balance hole (51.4) is arranged in the guide seat (51), one end of the second balance hole (51.4) is communicated with the second piston cavity (51.2), and the other end of the second balance hole (51.4) at least penetrates through two outer side faces of the guide seat (51).
5. Multi-needle valve island according to claim 4, characterised in that a respiratory filter element (8) is housed inside the first balancing hole (3.2) and the second balancing hole (51.4), respectively.
6. The multi-needle valve island of claim 4, wherein: a sealing plug (9) is arranged in the second piston cavity (51.2) communicated with the connecting channel (1.6), an O-shaped ring (10) is arranged between the sealing plug (9) and the side wall of the second piston cavity (51.2), an air guide hole (9.1) penetrates through the sealing plug (9), one end of the air guide hole (9.1) is communicated with the connecting channel (1.6), and the other end of the air guide hole (9.1) is communicated with the pilot cavity (51.1) corresponding to the second piston cavity (51.2).
7. A multi-needle valve island according to any of claims 1 to 6, wherein: the coil assembly (52) comprises sleeves (521), the bottom ends of the sleeves (521) are fixed on the guide seat (51) through pressing plates (522), static iron cores (523) are fixed at the top ends of the sleeves (521), coil bodies (524) are sleeved on the outer sides of the sleeves (521), inner cavities of the sleeves (521) are communicated with the guide cavity (51.1), movable iron cores (525) are arranged in the sleeves (521) in a sliding mode, first springs (526) are arranged between the movable iron cores (525) and the sleeves (521) in a supporting mode, and the first springs (526) always enable the movable iron cores (525) to close the valve ports (51.3).
8. The multi-needle valve island of claim 7, wherein the circuit board assembly (16) is further provided with an elastic clamping piece (16.2), and the outer side of the elastic clamping piece (16.2) is wrapped with a fixed seat (16.3); the coil sealing gasket (18) is arranged between the coil body (524) and the bus board (14) in a pressing mode, and the pins (527) which are matched with the elastic clamping pieces (16.2) in an inserting mode are arranged on the coil body (524).
9. The multi-needle valve island of claim 8, wherein: the bottom end of the movable iron core (525) is provided with a convex edge (525.1) for abutting against one end of the first spring (526), and the bottom end of the sleeve (521) is provided with a step (521.1) for abutting against the other end of the first spring (526).
10. The multi-needle valve island of claim 9, wherein: all be equipped with manual button (54) on leading seat (51), manual button (54) with leading seat (51) sliding fit, manual button (54) with move iron core (525) and correspond the setting, manual button (54) with support between leading seat (51) and be equipped with second spring (55), second spring (55) orders about manual button (54) are kept away from move the trend of iron core (525), be equipped with in leading seat (51) and be used for the restriction separation blade (56) of manual button (54) roll-off.
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| CN202011624837.5A CN112855986B (en) | 2020-12-31 | 2020-12-31 | Multi-needle valve terminal |
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| CN202011624837.5A CN112855986B (en) | 2020-12-31 | 2020-12-31 | Multi-needle valve terminal |
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| CN112855986A true CN112855986A (en) | 2021-05-28 |
| CN112855986B CN112855986B (en) | 2023-03-31 |
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Cited By (4)
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| CN113446428A (en) * | 2021-08-31 | 2021-09-28 | 星宇电子(宁波)有限公司 | Integrated intelligent valve terminal and assembling process thereof |
| CN114484019A (en) * | 2022-02-28 | 2022-05-13 | 宁波恒若隐科技有限公司 | Electrical double-control reversing valve |
| CN115978227A (en) * | 2023-03-20 | 2023-04-18 | 余姚市三力信电磁阀有限公司 | Pilot-operated type two-position four-way electromagnetic valve |
| WO2023143165A1 (en) * | 2022-01-27 | 2023-08-03 | 安徽威灵汽车部件有限公司 | Thermal management system and vehicle having same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113446428A (en) * | 2021-08-31 | 2021-09-28 | 星宇电子(宁波)有限公司 | Integrated intelligent valve terminal and assembling process thereof |
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| CN115978227B (en) * | 2023-03-20 | 2023-05-26 | 余姚市三力信电磁阀有限公司 | Pilot-operated two-position four-way solenoid valve |
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