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CN109268552B - Pressing pressure exchange device - Google Patents

Pressing pressure exchange device Download PDF

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Publication number
CN109268552B
CN109268552B CN201811014853.5A CN201811014853A CN109268552B CN 109268552 B CN109268552 B CN 109268552B CN 201811014853 A CN201811014853 A CN 201811014853A CN 109268552 B CN109268552 B CN 109268552B
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channel
cavity
shell
casing
air outlet
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CN109268552A (en
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许静
连加俤
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Hangzhou Electronic Science and Technology University
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Hangzhou Electronic Science and Technology University
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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
    • F16K21/00—Fluid-delivery valves, e.g. self-closing valves
    • F16K21/04—Self-closing valves, i.e. closing automatically after operation
    • F16K21/06—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening
    • F16K21/08—Self-closing valves, i.e. closing automatically after operation in which the closing movement, either retarded or not, starts immediately after opening with ball-shaped closing members

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Multiple-Way Valves (AREA)

Abstract

一种按压压力交换装置，属于压力交换装置技术领域。该压力交换装置由第一壳体、第二壳体、第三壳体、第四壳体、第五壳体相互连接构成，壳体上方配合设置外罩构成缓冲腔；壳体之间设置第一弹性片、第二弹性片，以及第一腔体、第二腔体、第三腔体、高压腔和第四腔体。上述一种按压压力交换装置，其开启、关闭具有延时性，时间可控，响应速度快，污水排放彻底；在潮湿的环境中不易损坏，使用寿命长，适用卫生间、厨房排水管的远距离排水，也适合游轮等分散型需要集中排水的地方。

Figure 201811014853

A pressing pressure exchange device belongs to the technical field of pressure exchange devices. The pressure exchange device is composed of a first shell, a second shell, a third shell, a fourth shell and a fifth shell which are connected to each other. A cover is arranged above the shell to form a buffer cavity; a first shell is arranged between the shells. An elastic sheet, a second elastic sheet, and a first cavity, a second cavity, a third cavity, a high pressure cavity and a fourth cavity. The above-mentioned pressing pressure exchange device has delay in opening and closing, controllable time, fast response speed, and thorough sewage discharge; it is not easy to be damaged in a humid environment, has a long service life, and is suitable for long-distance bathroom and kitchen drainage pipes. Drainage is also suitable for scattered places such as cruise ships that require centralized drainage.

Figure 201811014853

Description

Pressing pressure exchange device
Technical Field
The invention belongs to the technical field of pressure exchange devices, and particularly relates to a pressing pressure exchange device.
Background
The drainage of current residential quarter, bathroom, kitchen all directly arranges the gravity pipe, if need reform transform a bathroom in the place of keeping away from the gravity pipe, then the blowdown of drain pipe to gravity pipe can be realized through pressure exchange device. The conventional pressure exchange generally adopts an electromagnetic valve or a manual valve, the manual valve is used for pressure exchange, the time is uncontrollable, and the response speed is slow; the electromagnetic valve is easy to damage in a humid environment and has short service life.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to design and provide a technical scheme of a pressing pressure exchange device, wherein the opening and closing of the pressing pressure exchange device has time delay, the time is controllable, the response speed is high, and sewage is discharged thoroughly; the water-saving drainage device is not easy to damage in a wet environment, has long service life, is suitable for remote drainage of toilets, drainage pipes and the like, and is also suitable for dispersed places needing concentrated drainage, such as cruise ships and the like.
The pressing pressure exchange device is characterized in that the pressure exchange device is formed by mutually connecting a first shell, a second shell, a third shell, a fourth shell and a fifth shell, and an outer cover is arranged above the shells in a matched mode to form a buffer cavity; a first elastic sheet is arranged between the first shell and the second shell to form a first cavity, a micro-motion opening valve core is arranged on the second shell, and the left end of the micro-motion opening valve core is fixedly connected with the first elastic sheet; a second elastic sheet is arranged between the second shell and the third shell to form a second cavity and a third cavity, an air outlet rod in sliding fit with the third shell in a left-right sealing manner is arranged on the third shell, and the left end of the air outlet rod is fixedly connected with the second elastic sheet; a high-pressure cavity is formed between the third shell and the fourth shell, and the right end of the air outlet rod is in left-right sealing sliding fit with the fourth shell; a fourth cavity is formed between the fourth shell and the fifth shell, the air outlet rod is provided with an air inlet hole, an air channel and an air outlet hole which are communicated, the air inlet hole is communicated with the high-pressure cavity, the air outlet hole is in sealing fit with the fourth shell in a normal state, and the air outlet hole is communicated with the fourth cavity when the air outlet rod moves rightwards; a valve ball and a valve ball cavity are arranged on the fifth shell, the right end of the air outlet rod is connected with a top head, the top head is in contact fit with the valve ball when the air outlet rod moves rightwards, and the valve ball cavity is communicated with the fourth cavity; a first channel is arranged above the second shell, the first channel is externally connected with the atmosphere, the inner end of the first channel is connected with the first cavity, a second channel communicated with the inching opening valve core is arranged below the second shell, a third channel is arranged below the third shell, the third channel is communicated with the second channel and the third cavity, a discharge pipe is arranged at the lower end of the second shell, and the discharge pipe is communicated with an external high-low pressure switching device; a fourth channel is arranged below the fourth shell and is in matched connection with an external high-pressure gas inlet device, a fifth channel is arranged below the fifth shell and is in matched connection with the valve ball cavity and an external high-pressure gas outlet device; set up the sixth passageway above the fourth casing, the high pressure chamber is connected to the sixth passageway, the cushion chamber, set up the cushion chamber handing-over ware with the gaseous exchange of cushion chamber on the sixth passageway, the sixth passageway passes through ninth passageway and seventh passageway, the eighth passageway cooperation is connected, set up the second that exchanges with the cushion chamber on the seventh passageway and open and close time attenuator, set up the first time attenuator of opening and close that exchanges with the cushion chamber gas on the eighth passageway, seventh passageway and third cavity intercommunication, the eighth passageway and second cavity intercommunication.
The pressing pressure exchange device is characterized in that a diaphragm spring and a valve core spring are sleeved on the micro-motion opening valve core, a first left clamping plate and a first right clamping plate are arranged on the left side and the right side in the middle of a first elastic sheet in a matched mode, a first fixing bolt penetrates through the first left clamping plate, the first elastic sheet and the first right clamping plate to be fixedly connected with the left end portion of the micro-motion opening valve core, the right end of the valve core spring is fixedly connected with a first fixing plate, and the first fixing plate is fixed on a second shell through screws.
A press pressure exchange device, cup joint on its characterized in that goes out the gas pole and set up out the gas pole spring, the left and right sides sets up second left splint in the middle of the second elastic sheet, second right splint, second fixing bolt passes second left splint, the second elastic sheet, second right splint and the left end fixed connection of gas pole, pass through the first seal cover of second fixed plate fixed mounting on the third casing, gas pole right-hand member and the first seal cover left and right sides sealed sliding fit, the fixed spring pad that sets up in first seal cover left end, gas pole spring right-hand member and the cooperation of contradicting of spring pad elasticity, set up the second seal cover on the fourth casing, gas pole right-hand member and the second seal cover left and right sides sealed sliding fit.
The pressing pressure exchange device is characterized in that a fifth shell is provided with a limiting boss fixing plate, a limiting boss is arranged on the limiting boss fixing plate, a valve ball spring is sleeved on the limiting boss, and the left end of the valve ball spring is in contact fit with a valve ball.
The pressing pressure exchange device is characterized in that the diameters of the air inlets of the first opening-closing time damper and the second opening-closing time damper are 0.1-0.2 mm.
The pressing pressure exchange device is characterized in that the valve ball is made of a metal inner core and a rubber outer ring coated outside the metal inner core.
The pressing pressure exchange device has the advantages that the opening and closing are delayed, the time is controllable, the response speed is high, and the sewage is discharged thoroughly; the water-saving drainage device is not easy to damage in a wet environment, has long service life, is suitable for remote drainage of toilets, drainage pipes and the like, and is also suitable for dispersed places needing concentrated drainage, such as cruise ships and the like.
Drawings
FIG. 1 is a schematic structural view of a closed state of the present invention;
FIG. 2 is a schematic structural diagram of the open state of the present invention;
FIG. 3 is a schematic view of the structure of the gas outlet rod of the present invention;
fig. 4 is an enlarged schematic view of a portion a of fig. 2.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in the figure, the pressing pressure exchange device is formed by mutually connecting a first shell 8, a second shell 9, a third shell 16, a fourth shell 19 and a fifth shell 21, and an outer cover 62 is arranged above the shells in a matching way to form a buffer cavity 32; a first elastic sheet 1 is arranged between a first shell 8 and a second shell 9 to form a first cavity 7, a micro-motion opening valve core 5 is arranged on the second shell 9, and the left end of the micro-motion opening valve core 5 is fixedly connected with the first elastic sheet 1; a second elastic sheet 40 is arranged between the second shell 9 and the third shell 16 to form a second cavity 12 and a third cavity 13, an air outlet rod 47 which is in sliding fit with the third shell 16 in a left-right sealing manner is arranged on the third shell, and the left end of the air outlet rod 47 is fixedly connected with the second elastic sheet 40; a high-pressure cavity 31 is formed between the third shell 16 and the fourth shell 19, and the right end of the air outlet rod 47 is in left-right sealing sliding fit with the fourth shell 19; a fourth cavity 23 is formed between the fourth shell 19 and the fifth shell 21, the air outlet rod 47 is provided with an air inlet hole 49, an air channel 50 and an air outlet hole 51 which are communicated, the air inlet hole 49 is communicated with the high pressure cavity 31, the air outlet hole 51 is in sealing fit with the fourth shell 19 in a normal state, and the air outlet hole 51 is communicated with the fourth cavity 23 when the air outlet rod 47 moves to the right; the fifth shell 21 is provided with a valve ball 26 and a valve ball cavity 24, the right end of the air outlet rod 47 is connected with a top 29, the top 29 is in top contact fit with the valve ball 26 when the air outlet rod 47 moves rightwards, and the valve ball cavity 24 is communicated with the fourth cavity 23; a first channel 63 is arranged above the second shell 9, the first channel 63 is externally connected with the atmosphere, the inner end of the first channel 63 is connected with the first cavity 7, a second channel 10 communicated with the inching opening valve core 5 is arranged below the second shell 9, a third channel 15 is arranged below the third shell 16, the third channel 15 is communicated with the second channel 10 and the third cavity 13, a discharge pipe is arranged at the lower end of the second shell 9, and the discharge pipe is communicated with an external high-low pressure switching device; a fourth channel 18 is arranged below the fourth shell 19, the fourth channel 18 is connected with an external high-pressure gas inlet device in a matching manner, a fifth channel 22 is arranged below the fifth shell 21, and the fifth channel 22 is connected with a valve ball cavity 24 and an external high-pressure gas outlet device in a matching manner; a sixth channel 33 is arranged above the fourth shell 19, the sixth channel 33 is connected with the high-pressure cavity 31 and the buffer cavity 32, a buffer cavity connector 34 in gas exchange with the buffer cavity 32 is arranged on the sixth channel 33, the sixth channel 33 is in matched connection with a seventh channel 37 and an eighth channel 39 through a ninth channel 35, a second opening and closing time damper 36 in gas exchange with the buffer cavity 32 is arranged on the seventh channel 37, a first opening and closing time damper 38 in gas exchange with the buffer cavity 32 is arranged on the eighth channel 39, the seventh channel 37 is communicated with the third cavity 13, and the eighth channel 39 is communicated with the second cavity 12.
Preferably, the inching opening valve core 5 is sleeved with a top diaphragm spring 6a and a valve core spring 6, the left side and the right side of the middle of the first elastic sheet 1 are matched with a first left clamping plate 2 and a first right clamping plate 4, the first fixing bolt 3 penetrates through the first left clamping plate 2, the first elastic sheet 1, the first right clamping plate 4 and the left end part of the inching opening valve core 5 to be fixedly connected, the right end of the valve core spring 6 is fixedly connected with the first fixing plate 11, and the first fixing plate 11 is fixed on the second shell 9 through screws.
Preferably, the air outlet rod 47 is sleeved with an air outlet rod spring 44, the left and right sides of the middle of the second elastic sheet 40 are provided with a second left clamping plate 41 and a second right clamping plate 43, the second fixing bolt 42 penetrates through the second left clamping plate 41, the second elastic sheet 40, the second right clamping plate 43 is fixedly connected with the left end part of the air outlet rod 47, the third shell 16 is fixedly provided with a first sealing sleeve 46 through a second fixing plate 46a, the right end of the air outlet rod 47 is in left-right sealing sliding fit with the first sealing sleeve 46, the left end of the first sealing sleeve 46 is fixedly provided with a spring pad 45, the right end of the air outlet rod spring 44 is in elastic abutting fit with the spring pad 45, the fourth shell 19 is provided with a second sealing sleeve 30, and the right end of the air outlet rod 47 is in left-right.
Preferably, the fifth shell 21 is provided with a limiting boss fixing plate 25, the limiting boss fixing plate 25 is provided with a limiting boss 27, the limiting boss 27 is sleeved with a valve ball spring 28, and the left end of the valve ball spring 28 is in contact fit with the valve ball 26.
Preferably, the diameters of the air inlets of the first opening and closing time damper 38 and the second opening and closing time damper 36 are 0.1-0.2 mm.
Preferably, the valve ball 26 is made of a metal inner core 26a and a rubber outer ring 26b coated outside the metal inner core 26a, and the structure has the advantages that the sealing performance of the rubber outer ring 26b is good because the working environment is a humid environment, the metal inner core 26a is not easy to deform under the condition of pressure, and the rigidity is controllable.

Claims (6)

1.一种按压压力交换装置，其特征在于该压力交换装置由第一壳体（8）、第二壳体（9）、第三壳体（16）、第四壳体（19）、第五壳体（21）相互连接构成，壳体上方配合设置外罩（62）构成缓冲腔（32）；第一壳体（8）、第二壳体（9）之间设置第一弹性片（1）形成第一腔体（7），第二壳体（9）上设置微动开启阀芯（5），微动开启阀芯（5）左端与第一弹性片（1）固定连接；第二壳体（9）、第三壳体（16）之间设置第二弹性片（40）形成第二腔体（12）、第三腔体（13），第三壳体（16）上设置与其左右密封滑动配合的出气杆（47），出气杆（47）左端与第二弹性片（40）固定连接；第三壳体（16）、第四壳体（19）之间形成高压腔（31），出气杆（47）右端与第四壳体（19）左右密封滑动配合；第四壳体（19）、第五壳体（21）之间形成第四腔体（23），出气杆（47）上设置连通的进气孔（49）、气体通道（50）、出气孔（51），进气孔（49）与高压腔（31）连通，正常状态时出气孔（51）与第四壳体（19）密封配合，出气杆（47）右移时出气孔（51）与第四腔体（23）连通；第五壳体（21）上设置阀球（26）及阀球腔（24），出气杆（47）右端连接设置顶头（29），出气杆（47）右移时顶头（29）与阀球（26）顶触配合，阀球腔（24）与第四腔体（23）连通；第二壳体（9）上方设置第一通道（63），第一通道（63）外接大气、内端连接第一腔体（7），第二壳体（9）下方设置与微动开启阀芯（5）连通的第二通道（10），第三壳体（16）下方设置第三通道（15），第三通道（15）与第二通道（10）、第三腔体（13）连通，第二壳体（9）下端具有排放管，排放管与外部的高低压切换装置连通；第四壳体（19）下方设置第四通道（18），第四通道（18）与外部的高压气体进入装置配合连接，第五壳体（21）下方设置第五通道（22），第五通道（22）与阀球腔（24）、外部的高压气体引出装置配合连接；第四壳体（19）上方设置第六通道（33），第六通道（33）连接高压腔（31）、缓冲腔（32），第六通道（33）上设置与缓冲腔（32）气体交换的缓冲腔交接器（34），第六通道（33）通过第九通道（35）与第七通道（37）、第八通道（39）配合连接，第七通道（37）上设置与缓冲腔（32）气体交换的第二启闭时间阻尼器（36），第八通道（39）上设置与缓冲腔（32）气体交换的第一启闭时间阻尼器（38），第七通道（37）与第三腔体（13）连通，第八通道（39）与第二腔体（12）连通。1. A pressing pressure exchange device, characterized in that the pressure exchange device consists of a first casing (8), a second casing (9), a third casing (16), a fourth casing (19), a The five shells (21) are connected to each other, and a cover (62) is arranged above the shells to form a buffer cavity (32); a first elastic sheet (1) is arranged between the first shell (8) and the second shell (9). ) to form a first cavity (7), a micro-motion opening valve core (5) is arranged on the second housing (9), and the left end of the micro-motion opening valve core (5) is fixedly connected with the first elastic sheet (1); the second A second elastic sheet (40) is arranged between the casing (9) and the third casing (16) to form a second cavity (12) and a third cavity (13), and the third casing (16) is provided with the same The left and right air outlet rods (47) are sealed and slidably matched, and the left end of the air outlet rod (47) is fixedly connected with the second elastic sheet (40); a high pressure chamber (31) is formed between the third casing (16) and the fourth casing (19). ), the right end of the air outlet rod (47) is in sealing and sliding fit with the fourth casing (19) left and right; a fourth cavity (23) is formed between the fourth casing (19) and the fifth casing (21), and the air outlet rod ( 47) are provided with an air inlet (49), a gas passage (50), and an air outlet (51) that communicate with each other. The air inlet (49) is communicated with the high pressure chamber (31). The casing (19) is sealed and matched, and the air outlet (51) communicates with the fourth cavity (23) when the air outlet rod (47) moves to the right; the fifth casing (21) is provided with a valve ball (26) and a valve ball cavity ( 24), the right end of the air outlet rod (47) is connected with a plug head (29), when the air outlet rod (47) moves to the right, the plug head (29) is in contact with the valve ball (26), and the valve ball cavity (24) and the fourth cavity ( 23) Communication; a first channel (63) is arranged above the second housing (9), the first channel (63) is external to the atmosphere, and the inner end is connected to the first cavity (7), and a The second channel (10) communicated with the micro-opening valve core (5), the third channel (15) is arranged under the third housing (16), the third channel (15) is connected with the second channel (10) and the third cavity The lower end of the second housing (9) is provided with a discharge pipe, and the discharge pipe is communicated with the external high and low pressure switching device; a fourth passage (18) is provided under the fourth casing (19), and the fourth passage (18 ) is cooperatively connected with an external high-pressure gas inlet device, a fifth channel (22) is arranged under the fifth housing (21), and the fifth channel (22) is cooperatively connected with the valve ball cavity (24) and the external high-pressure gas extraction device; A sixth channel (33) is arranged above the fourth housing (19), the sixth channel (33) is connected to the high pressure chamber (31) and the buffer chamber (32), and the sixth channel (33) is provided with gas in the buffer chamber (32) The exchanged buffer chamber adapter (34), the sixth channel (33) is connected with the seventh channel (37) and the eighth channel (39) through the ninth channel (35), and the seventh channel (37) is provided with a buffer The second opening and closing time damper (36) of the cavity (32) gas exchange, the eighth channel ( 39) A first opening and closing time damper (38) for gas exchange with the buffer chamber (32) is provided, the seventh channel (37) is communicated with the third chamber (13), and the eighth channel (39) is connected with the second chamber The body (12) is connected. 2.如权利要求1所述的一种按压压力交换装置，其特征在于微动开启阀芯（5）上套接设置顶隔膜弹簧（6a）及阀芯弹簧（6），第一弹性片（1）中间左右两侧配合设置第一左夹板（2）、第一右夹板（4），第一固定螺栓（3）穿过第一左夹板（2）、第一弹性片（1）、第一右夹板（4）与微动开启阀芯（5）左端部固定连接，阀芯弹簧（6）右端与第一固定板（11）固定连接，第一固定板（11）通过螺钉固定在第二壳体（9）上。2. A pressing pressure exchanging device according to claim 1, characterized in that a top diaphragm spring (6a) and a valve core spring (6) are sleeved on the micro-opening valve core (5), and the first elastic sheet ( 1) The first left splint (2) and the first right splint (4) are arranged on the left and right sides of the middle, and the first fixing bolt (3) passes through the first left splint (2), the first elastic sheet (1), the first A right splint (4) is fixedly connected to the left end of the micro-opening valve core (5), the right end of the valve core spring (6) is fixedly connected to the first fixing plate (11), and the first fixing plate (11) is fixed on the first fixing plate (11) by screws. on the second shell (9). 3.如权利要求1所述的一种按压压力交换装置，其特征在于出气杆（47）上套接设置出气杆弹簧（44），第二弹性片（40）中间左右两侧设置第二左夹板（41）、第二右夹板（43），第二固定螺栓（42）穿过第二左夹板（41）、第二弹性片（40）、第二右夹板（43）与出气杆（47）左端部固定连接，第三壳体（16）上通过第二固定板（46a）固定安装第一密封套（46），出气杆（47）右端与第一密封套（46）左右密封滑动配合，第一密封套（46）左端固定设置弹簧垫（45），出气杆弹簧（44）右端与弹簧垫（45）弹性抵触配合， 第四壳体（19）上设置第二密封套（30），出气杆（47）右端与第二密封套（30）左右密封滑动配合。3. A pressing pressure exchanging device according to claim 1, characterized in that a gas outlet rod spring (44) is sleeved on the gas outlet rod (47), and a second left and right side is provided in the middle of the second elastic sheet (40) The splint (41), the second right splint (43), the second fixing bolt (42) passes through the second left splint (41), the second elastic sheet (40), the second right splint (43) and the air outlet rod (47) ) the left end is fixedly connected, the first sealing sleeve (46) is fixedly installed on the third housing (16) through the second fixing plate (46a), and the right end of the air outlet rod (47) is in sealing sliding fit with the first sealing sleeve (46) left and right , the left end of the first sealing sleeve (46) is fixedly provided with a spring washer (45), the right end of the gas outlet rod spring (44) is elastically interfered with the spring washer (45), and the fourth housing (19) is provided with a second sealing sleeve (30) , the right end of the air outlet rod (47) is in sealing sliding fit with the left and right sides of the second sealing sleeve (30). 4.如权利要求1所述的一种按压压力交换装置，其特征在于第五壳体（21）上设置限位凸台固定板（25），限位凸台固定板（25）上设置限位凸台（27），限位凸台（27）上套接阀球弹簧（28），阀球弹簧（28）左端与阀球（26）顶触配合。4. A pressing pressure exchanging device according to claim 1, characterized in that a limiting boss fixing plate (25) is provided on the fifth housing (21), and a limiting boss fixing plate (25) is provided with a limit The position boss (27), the limit boss (27) is sleeved with the valve ball spring (28), and the left end of the valve ball spring (28) is in contact with the valve ball (26). 5.如权利要求1所述的一种按压压力交换装置，其特征在于第一启闭时间阻尼器（38）、第二启闭时间阻尼器（36）的进气孔直径为0.1-0.2mm。5. A pressing pressure exchange device according to claim 1, characterized in that the diameter of the air inlet holes of the first opening and closing time damper (38) and the second opening and closing time damper (36) is 0.1-0.2 mm . 6.如权利要求1所述的一种按压压力交换装置，其特征在于所述的阀球（26）由金属内芯（26a）及其外面包覆的橡胶外圈（26b）制成。6 . The pressing pressure exchange device according to claim 1 , wherein the valve ball ( 26 ) is made of a metal inner core ( 26 a ) and a rubber outer ring ( 26 b ) covered on the outside. 7 .
CN201811014853.5A 2018-08-31 2018-08-31 Pressing pressure exchange device Active CN109268552B (en)

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CN201811014853.5A CN109268552B (en) 2018-08-31 2018-08-31 Pressing pressure exchange device

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87208296U (en) * 1987-05-18 1988-05-18 张桂荣 Timing pulse valve for automatically opening and closing
CN87210683U (en) * 1987-10-29 1988-09-07 赵伦武 Self enclosed water regulating valve
CN1123865A (en) * 1994-04-19 1996-06-05 株式会社荏原制作所 Vacuum valve controller for vacuum sewer system backgraound of the invention
JP2001004047A (en) * 1999-06-23 2001-01-09 Yokogawa Electric Corp Pilot relay
CN2780866Y (en) * 2005-01-10 2006-05-17 洛蒂格真空及家用技术股份有限公司 Control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87208296U (en) * 1987-05-18 1988-05-18 张桂荣 Timing pulse valve for automatically opening and closing
CN87210683U (en) * 1987-10-29 1988-09-07 赵伦武 Self enclosed water regulating valve
CN1123865A (en) * 1994-04-19 1996-06-05 株式会社荏原制作所 Vacuum valve controller for vacuum sewer system backgraound of the invention
JP2001004047A (en) * 1999-06-23 2001-01-09 Yokogawa Electric Corp Pilot relay
CN2780866Y (en) * 2005-01-10 2006-05-17 洛蒂格真空及家用技术股份有限公司 Control device

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