CN104763838A - Anti-explosion reversing valve - Google Patents
Anti-explosion reversing valve Download PDFInfo
- Publication number
- CN104763838A CN104763838A CN201510080938.3A CN201510080938A CN104763838A CN 104763838 A CN104763838 A CN 104763838A CN 201510080938 A CN201510080938 A CN 201510080938A CN 104763838 A CN104763838 A CN 104763838A
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- China
- Prior art keywords
- valve
- explosion
- proof
- casing
- side plate
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
- F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
- F16K31/426—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves the actuated valves being cylindrical sliding 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
- F16K27/041—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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- 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
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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
Landscapes
- 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 an anti-explosion reversing valve. The reversing valve comprises an electromagnetic pilot operated valve and a reversing valve body. The electromagnetic pilot operated valve comprises a power supply junction box and an electromagnetic component. The reversing valve body comprises a valve body and a valve core component. A fluid channel and a reversing channel are formed in the valve body. A transfer plate and a valve seat are further arranged on the valve body. The electromagnetic pilot operated valve comprises an anti-explosion casing which comprises an upper casing, a lower casing and left and right side plates. The electromagnetic component is arranged in a mounting cavity defined by the upper and lower casings and the left and right side plates. The upper casing, the right side plate and the lower casing are fixed through fastening bolts. Upper and lower side plates are arranged at the upper and lower ends of the left side plate respectively. Bearing step faces are arranged at free ends of the upper and lower side plates, extension plates abutting against the bearing step faces are arranged at the ends of the upper and lower casings facing towards the left side plate, the extension plates of the upper and lower casings are connected with the bearing step faces of the upper and lower side plates through fastening screws, and the power supply junction box is arranged in an accommodation cavity defined by the left side plate, the upper and lower side plates and the upper and lower extension plates. The reversing valve is good in anti-explosion effect, long in service life and convenient to assemble.
Description
Technical field
The invention belongs to selector valve technical field, especially a kind of explosion-proof selector valve.
Background technique
Explosion-proof selector valve of the prior art, comprise selector valve and electromagnetic priority valve, selector valve comprises valve body, and valve body is provided with main valve plug and valve rod, and the electromagnetic assembly in valve rod and electromagnetic priority valve is linked.During energising, electromagnetic priority valve relies on electromagnetic force to mention valve rod, and pilot valve mouth is opened, now solenoid valve epicoele is by pilot hole release, lowly high pressure reduction on being formed around main valve plug, under the effect of pressure difference, hydrodynamic pressure promotes main valve plug and moves up and to be opened by primary valve; During power-off, under the effect of spring force and main valve plug gravity, valve rod resets, and solenoid valve upper cavity pressure raises, and hydrodynamic pressure promotes main valve plug and moves down, and primary valve is closed.Current explosion-proof selector valve, it realizes explosion-proof by pouring type sealing usually, but owing to watering seal structure, explosion-proof coil uses traditional insurance silk to make overcurrent protection, only protects once, causes safety fuse cutout to burn out, electromagnetic coil open circuit.Need more emat coil after fus burns, the explosion-proof selector valve of pouring type cannot more emat coil, therefore its working life is short.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of explosion-proof selector valve with flame proof effect, this explosion-proof selector valve plays flame proof effect by explosion-proof casing, explosion-proof effect is good, and this explosion-proof selector valve easy accessibility, be convenient to more emat coil, long service life.
To achieve these goals, the technical solution used in the present invention is: a kind of explosion-proof selector valve, comprise electromagnetic priority valve and selector valve, electromagnetic priority valve comprises electric source connecting box and electromagnetic assembly, electromagnetic assembly comprises static gag bit, electromagnetic coil and moving armature, moving armature is arranged with Returnning spring, selector valve comprises valve body and mangetic core assembly, valve body is provided with fluid passage, this fluid passage is provided with five commutation passages, valve body is also provided with change-over panel, this change-over panel is provided with conversion runner, mangetic core assembly is provided with black box, valve body is provided with valve seat, it is characterized in that: described electromagnetic priority valve comprises explosion-proof casing, described electric source connecting box and electromagnetic assembly are that tiled configuration is installed in explosion-proof casing, described explosion-proof casing comprises upper-lower casing and left side plate, right sideboard is between upper-lower casing, described electromagnetic assembly is installed in the installation cavity surrounded by upper-lower casing and right sideboard, upper shell is provided with successively through upper shell, the clamping bolt of right sideboard and lower shell body, the upper and lower end parts of described left sideboard is respectively equipped with the side plate up and down extended towards electromagnetic assembly, the free end of this upper and lower side plate has supporting table terrace, described upper-lower casing has towards the end of left sideboard the extension board be posted by supporting table terrace, the extension board of this upper-lower casing flushes with upper and lower side plate respectively, the extension board of upper-lower casing is connected by fastening screw trip bolt with the supporting table terrace of upper and lower side plate, described electric source connecting box is installed on by left sideboard, in the receiving cavity that upper and lower side plate and upper and lower extension board surround.
As the further setting of the present invention, described supporting table terrace has indent fastening base, this fastening base is provided with the screw with fastening screw trip bolt adaptation towards the end face of fastening screw trip bolt, form clamping reducing between the indent fastening base of described upper and lower supporting table terrace, this clamping reducing and electric source connecting box form location fit.
As the further setting of the present invention, described upper enclosure inner wall has the positioning hole with moving armature one end adaptation, described lower shell body is provided with the pilot valve mouth that can move through along its axial reciprocating for moving armature, described pilot valve mouth place is provided with guide valve seat, this guide valve seat is provided with the center hole with this pilot valve mouth UNICOM, setting sleeve is arranged with outside guide valve seat, the stud end of described clamping bolt through after upper shell, right sideboard, lower shell body with this setting sleeve screw-thread fit, described Returnning spring is sheathed on one end that moving armature is positioned at guide valve seat center hole.
As the further setting of the present invention, described valve seat is provided with the mounting hole with guide valve seat adaptation, described mounting hole is extended with axis hole towards one end of valve body, the connecting rod be linked with moving armature is provided with in this axis hole, connecting rod one end has the expansion section be embedded in moving armature, the connecting rod the other end is connected with sealing gasket, and valve body is provided with the communication passage of through axis hole and fluid passage, and described sealing gasket is positioned at the joining place of communication passage and axis hole.
As the further setting of the present invention, described mangetic core assembly comprises main valve plug, valve rod is equipped with in main valve plug, valve rod one end is abutted with fluid passage inwall by Regulation spring, the valve rod the other end is provided with slide core, one end that described fluid passage is provided with slide core has the connection mouth with communication passage UNICOM, and described slide core outer circumferential face coordinates with fluid passage inner wall sealing.
As the further setting of the present invention, described slide core cross section is in the T-type structure laterally settled, and described valve stem end offers the mounting groove coordinated with slide core horizontal part, and the vertical portion outer peripheral sidewall of described slide core is embedded with y-type seal ring.
As the further setting of the present invention, described main valve plug is extended with outstanding axle head towards one end of slide core, and this axle head periphery puts the valve body back-up ring that cross section is wave meander line structure.
Adopt such scheme, compact structure of the present invention, volume are little, easy to assembly, explosion-proof effect is good, long service life.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Accompanying drawing 1 is specific embodiment of the invention structure sectional view;
Accompanying drawing 2 is A-A structure of reversing valve sectional view in specific embodiment of the invention accompanying drawing 1;
Accompanying drawing 3 is specific embodiment of the invention mangetic core assembly and slide core structural representation;
Accompanying drawing 4 is the structure worm's eye view of specific embodiment of the invention accompanying drawing 3;
Accompanying drawing 5 is the structure sectional view of specific embodiment of the invention change-over panel;
Accompanying drawing 6 is the structure plan view of specific embodiment of the invention accompanying drawing 5;
Accompanying drawing 7 is the structure worm's eye view of specific embodiment of the invention accompanying drawing 5;
Commutate when accompanying drawing 8 is the specific embodiment of the invention two-position three way channel conductive structural representation;
Commutate when accompanying drawing 9 is the specific embodiment of the invention two-position five-way channel conductive structural representation;
Selector valve 1, valve body 11, fluid passage 111, first commutate channel B 1, second commutate channel B 2, the 3rd commutation channel B 3, the 4th commutation channel B 4, the 5th commutation channel B 5, communication passage 113, mangetic core assembly 12, seal ring 121, sealing gasket 122, main valve plug 123, axle head 1231, valve rod 124, Regulation spring 125, slide core 126, horizontal part 1261, vertical portion 1262, y-type seal ring 1263, valve body back-up ring 127,
Electromagnetic priority valve 2, electric source connecting box 21, power-line terminal 211, electromagnetic assembly 22, static gag bit 221, electromagnetic coil 222, moving armature 223, Returnning spring 224, explosion-proof casing 23, upper shell 231, positioning hole 2311, lower shell body 232, pilot valve mouth 2321, left sideboard 233, right sideboard 234, clamping bolt 241, fastening screw trip bolt 242, side plate 25, supporting table terrace 251, fastening base 252, clamping reducing 253, extension board 26, installation cavity 271, receiving cavity 272, guide valve seat 28, center hole 281, step surface 282, setting sleeve 29, change-over panel 3, conversion runner 31, valve seat 4, mounting hole 41, relief opening 42, connecting rod 5, expansion section 51, sealing gasket 52.
Embodiment
Specific embodiments of the invention are explosion-proof selector valve 1 as shown in figs 1-9, comprise electromagnetic priority valve 2 and selector valve 1, electromagnetic priority valve 2 comprises electric source connecting box 21 and electromagnetic assembly 22, electromagnetic assembly 22 comprises static gag bit 221, electromagnetic coil 222 and moving armature 223, moving armature 223 is arranged with Returnning spring 224, selector valve 1 comprises valve body 11 and mangetic core assembly 12, valve body 11 is provided with fluid passage 111, this fluid passage 111 is provided with five commutation passages, be respectively first, second, 3rd, 4th, 5th commutation channel B 1, B2, B3, B4, B5, this valve body 11 is also provided with the change-over panel 3 that valve body 11 is changed between two-position three way and two-position five-way, change-over panel 3 is provided with conversion runner, mangetic core assembly 12 is provided with seal ring 121 and sealing gasket 122, valve body 11 is provided with valve seat 4, electromagnetic priority valve 2 comprises explosion-proof casing 23, electric source connecting box 21 and electromagnetic assembly 22 are installed in explosion-proof casing 23 in tiled configuration, electric source connecting box 21 comprises the power-line terminal 211 be connected with ABAP Adapter, this power-line terminal 211 is connected with electromagnetic assembly 22 by wire, electric source connecting box 21 is arranged on the left side of explosion-proof casing 23, electromagnetic assembly 22 is arranged on the right side of explosion-proof casing 23, explosion-proof casing 23 comprises upper-lower casing 231, 232 and left side plate 233, 234, right sideboard 234 is positioned at upper-lower casing 231, between 232, electromagnetic assembly 22 is installed on by upper-lower casing 231, 232 and the installation cavity 271 that surrounds of right sideboard 234 in, upper shell 231 is provided with successively through upper shell 231, the clamping bolt 241 of right sideboard 234 and lower shell body 232, the upper and lower end parts of left sideboard 233 is respectively equipped with the side plate up and down 25 extended towards electromagnetic assembly 22, the free end of this upper and lower side plate 25 has supporting table terrace 251, upper-lower casing 231, 232 have towards the end of left sideboard 233 extension board 26 be posted by supporting table terrace 251, this upper-lower casing 231, the extension board 26 of 232 flushes with upper and lower side plate 25 respectively, upper-lower casing 231, the extension board 26 of 232 is connected by fastening screw trip bolt 242 with the supporting table terrace 251 of upper and lower side plate 25, electric source connecting box 21 is installed on by left sideboard 233, in the receiving cavity 272 that upper and lower side plate 25 and upper and lower extension board 26 surround.Above-mentioned explosion-proof casing 23 is easy to assembly, and formed two installation cavitys 271,272 in left and right respectively power supply source terminal box 21 and electromagnetic assembly 22 hold, Structural assignments is in order clear, is convenient to assembling.
Above-mentioned supporting table terrace 251 has indent fastening base 252, this fastening base 252 is provided with the screw with fastening screw trip bolt 242 adaptation towards the end face of fastening screw trip bolt 242, clamping reducing 253 is formed between the indent fastening base 252 of upper and lower supporting table terrace 251, this clamping reducing 253 forms location fit with electric source connecting box 21, while above-mentioned two supporting table terraces 251 play fastening effect, the thickness increasing local increases the intensity of joint, and in addition, its clamping reducing 253 also plays locating effect.
Above-mentioned upper shell 231 inwall has the positioning hole 2311 with moving armature 223 one end adaptation, lower shell body 232 is provided with the pilot valve mouth 2321 that can move through along its axial reciprocating for moving armature 223, pilot valve mouth 2321 place is provided with guide valve seat 28, this guide valve seat 28 is provided with the center hole 281 with this pilot valve mouth 2321 UNICOM, setting sleeve 29 is arranged with outside guide valve seat 28, guide valve seat 28 outer wall has step surface 282, setting sleeve 29 to be arranged on step surface 282 and to be fixed by clamping bolt 241, the stud end of clamping bolt 241 is through upper shell 231, right sideboard 234, after lower shell body 232 and this setting sleeve 29 screw-thread fit, Returnning spring 224 is sheathed on one end that moving armature 223 is positioned at guide valve seat 28 center hole 281.
Above-mentioned valve seat 4 is provided with the mounting hole 41 with guide valve seat 28 adaptation, mounting hole 41 is extended with axis hole towards one end of valve body 11, the connecting rod 5 be linked with moving armature 223 is provided with in this axis hole, connecting rod 5 one end has the expansion section 51 be embedded in moving armature 223, connecting rod 5 the other end is connected with sealing gasket 52, valve body 11 is provided with the communication passage 113 of through axis hole and fluid passage 111, and sealing gasket 52 is positioned at the joining place of communication passage 113 and axis hole.This valve seat 4 is also provided with relief opening 42, relief opening 42 is identical with communication passage 113 entrance, this communication passage 113 entry end and above-mentioned sealing gasket 52 are sealed and matched, drive sealing gasket 52 to move up and down to realize conducting or the sealing of relief opening 42 and communication passage 113 by electromagnetic assembly 22 drive link 5 that is energized, make air-flow enter valve body 11 to promote main valve plug 23 and move or be vented from relief opening 42, during power-off, then sealing gasket 52 and main valve plug 23 reset.
Above-mentioned mangetic core assembly 12 comprises main valve plug 123, valve rod 124 is equipped with in main valve plug 123, valve rod 124 one end is abutted with fluid passage 111 inwall by Regulation spring 125, valve rod 124 the other end is provided with slide core 126, one end that fluid passage 111 is provided with slide core 126 has the connection mouth with communication passage 113 UNICOM, and slide core 126 outer circumferential face coordinates with fluid passage 111 inner wall sealing.
Above-mentioned slide core 126 cross section is in the T-type structure laterally settled, and valve rod 124 end opens has the mounting groove coordinated with slide core 126 horizontal part 1261, and vertical portion 1262 outer peripheral sidewall of slide core 126 is embedded with y-type seal ring 1263.
Above-mentioned main valve plug 123 is extended with outstanding axle head 1231 towards one end of slide core 126, and this axle head 1231 periphery puts the valve body back-up ring 127 that cross section is wave meander line structure.
Explosion-proof selector valve of the present invention, has flame proof effect, and explosion-proof effect is better, longer service life, and this housing is easy to assembly.The function of this explosion-proof selector valve by regulating change-over panel 3 can realize two-position three way and two-position five-way.Selector valve 1 is linked by connecting rod 5 and moving armature 223, when energized, electromagnetic assembly 22 is energized to driving on the sealing gasket 52 below armature 223 drivening rod 5 and moves, the relief opening be arranged on valve seat 4 can be vented, and air-flow enters fluid passage 111 by communication passage and promotes slide core 126 and move to right and then promote main valve plug 123 and move to right commutation channel B 1, B2, B3, B4, B5 conducting are given vent to anger; During power-off, Regulation spring 125 promotes main valve plug 123 and resets.
The present invention is not limited to above-mentioned embodiment; persons skilled in the art are according to content disclosed by the invention; other multiple embodiments can be adopted to implement of the present invention; or every employing project organization of the present invention and thinking; do simple change or change, all fall into protection scope of the present invention.
Claims (7)
1. an explosion-proof selector valve, comprise electromagnetic priority valve and selector valve, electromagnetic priority valve comprises electric source connecting box and electromagnetic assembly, electromagnetic assembly comprises static gag bit, electromagnetic coil and moving armature, moving armature is arranged with Returnning spring, selector valve comprises valve body and mangetic core assembly, valve body is provided with fluid passage, this fluid passage is provided with five commutation passages, valve body is also provided with change-over panel, this change-over panel is provided with conversion runner, mangetic core assembly is provided with black box, valve body is provided with valve seat, it is characterized in that: described electromagnetic priority valve comprises explosion-proof casing, described electric source connecting box and electromagnetic assembly are that tiled configuration is installed in explosion-proof casing, described explosion-proof casing comprises upper-lower casing and left side plate, right sideboard is between upper-lower casing, described electromagnetic assembly is installed in the installation cavity surrounded by upper-lower casing and right sideboard, upper shell is provided with successively through upper shell, the clamping bolt of right sideboard and lower shell body, the upper and lower end parts of described left sideboard is respectively equipped with the side plate up and down extended towards electromagnetic assembly, the free end of this upper and lower side plate has supporting table terrace, described upper-lower casing has towards the end of left sideboard the extension board be posted by supporting table terrace, the extension board of this upper-lower casing flushes with upper and lower side plate respectively, the extension board of upper-lower casing is connected by fastening screw trip bolt with the supporting table terrace of upper and lower side plate, described electric source connecting box is installed on by left sideboard, in the receiving cavity that upper and lower side plate and upper and lower extension board surround.
2. explosion-proof selector valve according to claim 1, it is characterized in that: described supporting table terrace has indent fastening base, this fastening base is provided with the screw with fastening screw trip bolt adaptation towards the end face of fastening screw trip bolt, form clamping reducing between the indent fastening base of described upper and lower supporting table terrace, this clamping reducing and electric source connecting box form location fit.
3. explosion-proof selector valve according to claim 1, it is characterized in that: described upper enclosure inner wall has the positioning hole with moving armature one end adaptation, described lower shell body is provided with the pilot valve mouth that can move through along its axial reciprocating for moving armature, described pilot valve mouth place is provided with guide valve seat, this guide valve seat is provided with the center hole with this pilot valve mouth UNICOM, setting sleeve is arranged with outside guide valve seat, the stud end of described clamping bolt through after upper shell, right sideboard, lower shell body with this setting sleeve screw-thread fit, described Returnning spring is sheathed on one end that moving armature is positioned at guide valve seat center hole.
4. explosion-proof selector valve according to claim 3, it is characterized in that: described valve seat is provided with the mounting hole with guide valve seat adaptation, described mounting hole is extended with axis hole towards one end of valve body, the connecting rod be linked with moving armature is provided with in this axis hole, connecting rod one end has the expansion section be embedded in moving armature, the connecting rod the other end is connected with sealing gasket, and valve body is provided with the communication passage of through axis hole and fluid passage, and described sealing gasket is positioned at the joining place of communication passage and axis hole.
5. the explosion-proof selector valve according to claim 1-4 any one, it is characterized in that: described mangetic core assembly comprises main valve plug, valve rod is equipped with in main valve plug, valve rod one end is abutted with fluid passage inwall by Regulation spring, the valve rod the other end is provided with slide core, one end that described fluid passage is provided with slide core has the connection mouth with communication passage UNICOM, and described slide core outer circumferential face coordinates with fluid passage inner wall sealing.
6. explosion-proof selector valve according to claim 5, it is characterized in that: described slide core cross section is in the T-type structure laterally settled, described valve stem end offers the mounting groove coordinated with slide core horizontal part, and the vertical portion outer peripheral sidewall of described slide core is embedded with y-type seal ring.
7. explosion-proof selector valve according to claim 6, is characterized in that: described main valve plug is extended with outstanding axle head towards one end of slide core, and this axle head periphery puts the valve body back-up ring that cross section is wave meander line structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080938.3A CN104763838B (en) | 2015-02-15 | 2015-02-15 | Explosion-proof reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510080938.3A CN104763838B (en) | 2015-02-15 | 2015-02-15 | Explosion-proof reversal valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763838A true CN104763838A (en) | 2015-07-08 |
| CN104763838B CN104763838B (en) | 2017-03-08 |
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ID=53645850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510080938.3A Active CN104763838B (en) | 2015-02-15 | 2015-02-15 | Explosion-proof reversal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763838B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111895135A (en) * | 2020-09-07 | 2020-11-06 | 徐州徐工液压件有限公司 | Oil port switching structure of two-position five-way valve |
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| JP2004245387A (en) * | 2003-02-17 | 2004-09-02 | Kaneko Sangyo Kk | Explosion proof type solenoid valve |
| CN200978986Y (en) * | 2006-11-10 | 2007-11-21 | 解雅亮 | Explosion-proof high voltage solenoid valve for coal mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111895135A (en) * | 2020-09-07 | 2020-11-06 | 徐州徐工液压件有限公司 | Oil port switching structure of two-position five-way valve |
| CN111895135B (en) * | 2020-09-07 | 2022-05-03 | 徐州徐工液压件有限公司 | Oil port switching structure of two-position five-way valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104763838B (en) | 2017-03-08 |
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