CN110391110B - Double-output type pressure-adjustable pressure switch for fire control - Google Patents
Double-output type pressure-adjustable pressure switch for fire control Download PDFInfo
- Publication number
- CN110391110B CN110391110B CN201910831179.8A CN201910831179A CN110391110B CN 110391110 B CN110391110 B CN 110391110B CN 201910831179 A CN201910831179 A CN 201910831179A CN 110391110 B CN110391110 B CN 110391110B
- Authority
- CN
- China
- Prior art keywords
- upper shell
- hollow
- pressure
- shell
- circular
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 238000010079 rubber tapping Methods 0.000 claims abstract description 26
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 230000001960 triggered effect Effects 0.000 description 5
- 239000012528 membrane Substances 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/2657—Details with different switches operated at substantially different pressures
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The invention discloses a double-output type pressure-adjustable switch for fire control. The double-output type pressure-adjustable switch for fire control comprises 2 microswitches, a bottom shell, an upper shell, a bottom plate and a top cover, wherein two opposite sides of the upper part of the pipe wall of an external thread tubular part at the lower end of the bottom shell are respectively provided with an inclined medium channel communicated with the bottoms of 2 circular pits; two circular hollow cavities arranged on the upper shell are respectively matched and correspond to 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the upper shell is fixedly connected with the bottom shell in a sealing way by using at least 8 high-low self-tapping screws; the device also comprises a micro-switch contact triggering device. The invention meets the requirements of different alarm pressures of high and low pressure of clients and realizes double-output high and low pressure alarm; the invention has simple structural design and is convenient for the installation of clients; the investment of fire-fighting equipment and the maintenance cost of personnel are reduced.
Description
Technical Field
The invention belongs to an accessory article of a fire-fighting apparatus, in particular to a double-output type pressure-adjustable pressure switch for fire-fighting.
Background
The pressure driven switch is used in automatic fire sprinkler system to detect water flow pressure, such as wet pipe system with alarm check valve, pre-operation valve or rain alarm valve. The alarm pressures set in different working conditions are different, and a plurality of pressure value alarms are required to be set, so that the electronic pressure switch is popular in the market for several years and is used for replacing an electric contact pressure gauge and being used in a system with high industrial control requirements. The characteristics are that: the electronic display screen is visual, high in accuracy, convenient to set control points through the display screen, relatively high in price, high in maintenance cost and power supply. How to meet the requirements of different high and low pressure alarm pressures of clients and realizing double-output high and low pressure alarm, the structural design is simple and convenient for the clients to install; reducing the investment and personnel maintenance costs of the fire fighting equipment is a problem to be solved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: provides a double-output type pressure-adjustable pressure switch for fire protection. The double-output type pressure-adjustable pressure switch for fire control can meet the requirements of different high and low pressure alarm pressures of clients and realize double-output high and low pressure alarm, has simple structural design and is convenient for the clients to install; the investment and personnel maintenance cost of the fire-fighting equipment are reduced.
The technical scheme for solving the technical problems is as follows: the utility model provides a but fire control is with dual output formula pressure regulating pressure switch, includes 2 micro-gap switches, characterized by: the bottom shell is characterized by further comprising a bottom shell body, an upper shell body, a bottom plate and a top cover, wherein the lower end of the bottom shell body is provided with an external thread tubular part, 2 circular pits are arranged at the longitudinal center of the top surface at intervals, and inclined medium channels communicated with the bottoms of the 2 circular pits are respectively arranged on two opposite sides of the upper part of the pipe wall of the external thread tubular part at the lower end of the bottom shell body;
the upper shell is provided with two circular hollow cavities, the two circular hollow cavities arranged on the upper shell are respectively matched and correspond to 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the lower bottom surfaces of the two circular hollow cavities arranged on the upper shell can be respectively in sealing contact with the upper top surfaces of the 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell; the contact surface of the upper shell and the bottom shell is a sealing contact surface, and the upper shell and the bottom shell are fixedly connected in a sealing way by using at least 8 high-low self-tapping screws; the 2 microswitches are arranged on the top surface of the upper shell by using a microswitch bracket and high-low tooth self-tapping screws, and the 2 microswitches arranged on the top surface of the upper shell by using the microswitch bracket and the high-low tooth self-tapping screws are respectively corresponding to two circular hollow cavities arranged on the upper shell; the bottom plate is fixedly connected with the upper shell in a sealing way by using high-low tooth self-tapping screws, and the top cover is fixedly connected with the bottom plate in a sealing way by using the high-low tooth self-tapping screws and the sealing gasket; the device also comprises micro-switch contact triggering devices, wherein the number of the micro-switch contact triggering devices is 2;
The micro switch contact trigger device comprises a pressure diaphragm, a mandril, a spring and an adjusting trigger pressure nut, wherein the mandril is a mandril with a convex head at one end, the adjusting trigger pressure nut is in a shape of a reversed hollow convex head, external threads are arranged on the outer surfaces of smaller parts of the mandril with the reversed hollow convex head-shaped adjusting trigger pressure nut, 2 pressure diaphragms are respectively arranged in two round hollow cavities arranged on the upper shell in a sealing sleeve manner, 2 pressure diaphragms arranged in the two round hollow cavities of the upper shell can respectively slide up and down in a sealing manner in the two round hollow cavities of the upper shell, 2 mandrils respectively use convex heads with one ends to be arranged in the two round hollow cavities of the upper shell with 2 pressure diaphragms, the lower bottom surfaces of the convex heads with one ends of the 2 mandril are respectively pressed on the upper top surfaces of 2 pressure diaphragms arranged in the two round hollow cavities of the upper shell, 2 spring sleeves are respectively sleeved on the 2 mandril with convex heads at one ends arranged in the two round hollow cavities of the upper shell, 2 spring sleeves are respectively arranged on the two hollow heads with the outer surfaces of the smaller parts of the upper shell, the two mandril-shaped adjusting trigger pressure nut is in a shape of the reversed hollow cavity is respectively arranged at two ends of the two hollow heads arranged on the upper end of the upper shell with two hollow heads respectively, the end parts of the upper ends of the 2 ejector rods with the raised heads, which are arranged at one ends in the two circular hollow cavities of the upper shell, respectively extend out of the hollow through holes of the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts, and the end parts of the spare ends formed by the hollow through holes can respectively correspond to contacts of 2 microswitches which are arranged on the top surface of the upper shell by using a microswitches bracket and a high-low tooth self-tapping screw; the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts are rotated to have larger parts, and the lower bottom surfaces of the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts with larger parts can respectively apply different pressures to 2 springs which are sleeved on 2 ejector rods with raised heads at one ends; the end parts of the upper ends of the 2 ejector rods with the raised heads, which are arranged at one end in the two circular hollow cavities of the upper shell, respectively extend out of the hollow through holes of the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts, and the vacant ends formed by the hollow through holes can respectively trigger contacts of 2 microswitches which are arranged on the top surface of the upper shell by using the microswitches bracket and the high-low tooth self-tapping screw.
The working process of the invention is as follows: the external thread of the pipe wall arranged at the lower end of the bottom shell of the double-output pressure-adjustable pressure switch is connected with equipment used for fluid pipelines or automatic spraying and extinguishing and the like. When the top cover is opened, connecting wires are connected from holes below the bottom plate and are respectively arranged on connecting terminals of 2 microswitches, and when the COM end and the NO end of the connecting terminals of the microswitches are connected at the same time, the microswitches are in a normally open state, and when the pressure reaches the set pressure of the pressure switch, the contacts of the microswitches are triggered, and the pressure signals are converted into electric signals. When the COM end and the NC end of the connecting terminal of the micro switch are connected at the same time, the micro switch is in a normally closed state, and when the pressure reaches the set pressure of the pressure switch, the micro switch contacts are triggered, and the electric signal is cut off. The high-low pressure trigger pressure of the double-output pressure-adjustable switch is set by rotating 2 inverted hollow raised head-shaped trigger pressure adjusting nuts respectively, and a top cover is covered. When the pressure bearing of the double-output type adjustable pressure switch is larger than a set low pressure value, the low pressure membrane corresponds to the set pressure of the micro switch contact trigger device and pushes the push rod with the convex head at one end to act upwards, and 1 micro switch is triggered, so that a pressure signal is converted into an electric signal, and a low pressure alarm is formed; when the pressure continues to be increased and the pressure bearing of the pressure switch is larger than a set high-pressure value, the high-pressure diaphragm corresponds to the set pressure of the micro switch contact trigger device and pushes the push rod with the convex head at one end to act upwards, and the other 1 micro switch is triggered, so that the pressure signal is converted into an electric signal, and a high-pressure alarm is formed; when the pressure of the double-output type pressure-adjustable switch is reduced to be smaller than the set high pressure, the ejector rod with the convex head at one end and the pressure membrane slide downwards to return to the initial state under the action of the thrust of the spring sleeved on the ejector rod, and the high pressure signal is released; when the pressure of the double-output type pressure-adjustable pressure switch is reduced to be smaller than the set low pressure, one end of the double-output type pressure-adjustable pressure switch is provided with a raised head ejector rod and a pressure diaphragm, the pressure is slid downwards under the action of the thrust of a spring arranged on the sleeve of the double-output type pressure-adjustable pressure switch to return to an initial state, and a low pressure signal is released.
The beneficial effects of the invention are as follows: because the invention is provided with 2 microswitches, a bottom shell, an upper shell, a bottom plate and a top cover, the lower end of the bottom shell is of an external thread tubular structure, 2 circular pits are arranged on the longitudinal center of the top surface at intervals, and two opposite sides of the upper part of the pipe wall of the external thread tubular structure at the lower end of the bottom shell are respectively provided with inclined medium channels communicated with the bottoms of the 2 circular pits; the upper shell is provided with two circular hollow cavities, the two circular hollow cavities arranged on the upper shell are respectively matched and correspond to 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the lower bottom surfaces of the two circular hollow cavities arranged on the upper shell can be respectively in sealing contact with the upper top surfaces of the 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell; the upper shell and the bottom shell are in sealing contact surface, and are fixedly and hermetically connected by using at least 8 high-low thread self-tapping screws; the 2 microswitches are arranged on the top surface of the upper shell by using a microswitch bracket and high-low tooth self-tapping screws, and the 2 microswitches arranged on the top surface of the upper shell by using the microswitch bracket and the high-low tooth self-tapping screws are respectively corresponding to two circular hollow cavities arranged on the upper shell; the bottom plate is fixedly connected with the upper shell in a sealing way by using high-low tooth self-tapping screws, and the top cover is fixedly connected with the bottom plate in a sealing way by using high-low tooth self-tapping screws and sealing gaskets; and the micro-switch contact triggering devices are also arranged, and the number of the micro-switch contact triggering devices is 2. The invention meets the requirements of different alarm pressures of high and low pressure of clients and realizes double-output high and low pressure alarm; the invention has simple structural design and is convenient for the installation of clients; the investment of fire-fighting equipment and the maintenance cost of personnel are reduced.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is a schematic structural view of the appearance of the present invention;
FIG. 2 is a sectional view taken along the direction A-A of FIG. 1 in accordance with the present invention;
In the accompanying drawings: 1. micro-gap switch, 2 bottom casing, 3 upper casing, 4 bottom plate, 5 top cap, 21 external screw thread tubular part, 22 circular pit, 23 inclined medium passageway, 31 circular hollow cavity, 6 sealing pad, 7 pressure diaphragm, 8 ejector pin, 9 spring, 10 regulation trigger pressure nut.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
Example 1
As shown in fig. 1 and 2, a dual-output type pressure-adjustable pressure switch for fire protection comprises 2 micro switches 1 and is characterized in that: the bottom shell comprises a bottom shell body 2, an upper shell body 3, a bottom plate 4 and a top cover 5, wherein the lower end of the bottom shell body 2 is provided with an external thread tubular part 21, 2 circular pits 22 are arranged at the longitudinal center of the top surface at intervals, and inclined medium channels 23 communicated with the bottoms of the 2 circular pits 22 are respectively arranged on two opposite sides of the upper part of the pipe wall of the external thread tubular part at the lower end of the bottom shell body 2;
The upper shell 3 is provided with two circular hollow cavities 31, the two circular hollow cavities 31 arranged on the upper shell 3 are respectively matched and correspond to 2 circular pits 22 arranged at intervals on the longitudinal center of the top surface of the bottom shell 2, and the lower bottom surfaces of the two circular hollow cavities 31 arranged on the upper shell 3 can be respectively in sealing contact with the upper top surfaces of the 2 circular pits 22 arranged at intervals on the longitudinal center of the top surface of the bottom shell 2; the contact surface of the upper shell 3 and the bottom shell 2 is a sealing contact surface, and the upper shell 3 and the bottom shell 2 are fixedly connected in a sealing way by using 8 high-low self-tapping screws; the 2 micro switches 1 are arranged on the top surface of the upper shell 3 by using a micro switch bracket and high-low tooth self-tapping screws, and the 2 micro switches 1 arranged on the top surface of the upper shell 3 by using the micro switch bracket and the high-low tooth self-tapping screws are respectively corresponding to two circular hollow cavities 31 arranged on the upper shell 3; the bottom plate 4 is fixedly connected with the upper shell 3 in a sealing way by using high-low tooth self-tapping screws, and the top cover 5 is fixedly connected with the bottom plate 4 in a sealing way by using high-low tooth self-tapping screws and sealing gaskets 6; the device also comprises micro-switch contact triggering devices, wherein the number of the micro-switch contact triggering devices is 2;
The micro-switch contact triggering device comprises a pressure diaphragm 7, an ejector rod 8, a spring 9 and an adjusting triggering pressure nut 10, wherein the pressure diaphragm 7 is made of ethylene propylene diene monomer rubber, the hardness is 45-50 degrees, the tension is small, and the alarm error can be reduced; the ejector rod 8 is an ejector rod with a raised head at one end, the adjusting trigger pressure nut 10 is in an inverted hollow raised head shape, and an external thread is arranged on the outer surface of a smaller part of the inverted hollow raised head-shaped adjusting trigger pressure nut; the two pressure diaphragms 7 are respectively arranged in the two circular hollow cavities 31 arranged on the upper shell 3 in a sealing manner, the 2 pressure diaphragms 7 arranged in the two circular hollow cavities 31 of the upper shell can respectively slide up and down in a sealing manner, the 2 ejector rods are respectively arranged in the two circular hollow cavities 31 of the upper shell by using convex heads with one ends arranged on the two circular hollow cavities 31 of the upper shell, the lower bottom surfaces of the convex heads arranged on one end of the 2 ejector rods are respectively pressed on the upper top surfaces of the 2 pressure diaphragms 7 arranged in the two circular hollow cavities 31 of the upper shell, the 2 spring 9 sleeves are respectively sleeved on the 2 ejector rods with convex heads at one ends arranged in the two circular hollow cavities 31 of the upper shell, the 2 hollow convex head-shaped adjusting triggering pressure nuts are respectively arranged on the upper top surfaces of the two circular hollow cavities 31 of the upper shell by using external thread sleeves arranged on the outer surfaces of the smaller parts of the two hollow head-shaped triggering pressure nuts, the two convex head-shaped triggering end parts arranged on the two hollow cavities 31 of the upper shell are respectively pressed on the upper top surfaces of the two circular hollow cavities 31 of the upper shell, the two convex head-shaped end parts 2 arranged on the upper end surfaces of the upper shell are respectively provided with convex head-shaped 2 convex head-shaped end parts arranged on the two hollow cavity nuts, and the two hollow end-shaped hollow nuts which are respectively protruded out of the hollow end-shaped hollow end heads 2 corresponding to the hollow end-shaped hollow end heads 2 are respectively arranged on the upper end heads of the hollow shell 2; 2 large parts of the inverted hollow raised head-shaped adjusting trigger pressure nuts are rotated, and the lower bottom surfaces of the 2 large parts of the inverted hollow raised head-shaped adjusting trigger pressure nuts can respectively apply different pressures to 2 jacking rods with raised heads at one ends and 2 springs 9 sleeved on the 2 jacking rods; the end part of the upper end of the 2 ejector rods with the raised heads, which are arranged at one end in the two circular hollow cavities 31 of the upper shell, respectively extend out of the hollow ends formed by the hollow through holes of the inverted hollow raised head-shaped adjusting trigger pressure nuts, and the contacts of 2 microswitches 1, which are arranged on the top surface of the upper shell, can be respectively triggered by using the microswitches bracket and the high-low tooth self-tapping screws.
From the above description, it is apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the technical spirit of the invention. The present invention is not limited to the prior art.
Claims (1)
1. The utility model provides a but fire control is with dual output formula pressure regulating pressure switch, includes 2 micro-gap switches, characterized by: the bottom shell is characterized by further comprising a bottom shell body, an upper shell body, a bottom plate and a top cover, wherein the lower end of the bottom shell body is provided with an external thread tubular part, 2 circular pits are arranged at the longitudinal center of the top surface at intervals, and inclined medium channels communicated with the bottoms of the 2 circular pits are respectively arranged on two opposite sides of the upper part of the pipe wall of the external thread tubular part at the lower end of the bottom shell body;
the upper shell is provided with two circular hollow cavities, the two circular hollow cavities arranged on the upper shell are respectively matched and correspond to 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell, and the lower bottom surfaces of the two circular hollow cavities arranged on the upper shell can be respectively in sealing contact with the upper top surfaces of the 2 circular pits arranged at intervals on the longitudinal center of the top surface of the bottom shell; the contact surface of the upper shell and the bottom shell is a sealing contact surface, and the upper shell and the bottom shell are fixedly connected in a sealing way by using at least 8 high-low self-tapping screws; the 2 microswitches are arranged on the top surface of the upper shell by using a microswitch bracket and high-low tooth self-tapping screws, and the 2 microswitches arranged on the top surface of the upper shell by using the microswitch bracket and the high-low tooth self-tapping screws are respectively corresponding to two circular hollow cavities arranged on the upper shell; the bottom plate is fixedly connected with the upper shell in a sealing way by using high-low tooth self-tapping screws, and the top cover is fixedly connected with the bottom plate in a sealing way by using the high-low tooth self-tapping screws and the sealing gasket; the device also comprises micro-switch contact triggering devices, wherein the number of the micro-switch contact triggering devices is 2;
The micro switch contact trigger device comprises a pressure diaphragm, a mandril, a spring and an adjusting trigger pressure nut, wherein the mandril is a mandril with a convex head at one end, the adjusting trigger pressure nut is in a shape of a reversed hollow convex head, external threads are arranged on the outer surfaces of smaller parts of the mandril with the reversed hollow convex head-shaped adjusting trigger pressure nut, 2 pressure diaphragms are respectively arranged in two round hollow cavities arranged on the upper shell in a sealing sleeve manner, 2 pressure diaphragms arranged in the two round hollow cavities of the upper shell can respectively slide up and down in a sealing manner in the two round hollow cavities of the upper shell, 2 mandrils respectively use convex heads with one ends to be arranged in the two round hollow cavities of the upper shell with 2 pressure diaphragms, the lower bottom surfaces of the convex heads with one ends of the 2 mandril are respectively pressed on the upper top surfaces of 2 pressure diaphragms arranged in the two round hollow cavities of the upper shell, 2 spring sleeves are respectively sleeved on the 2 mandril with convex heads at one ends arranged in the two round hollow cavities of the upper shell, 2 spring sleeves are respectively arranged on the two hollow heads with the outer surfaces of the smaller parts of the upper shell, the two mandril-shaped adjusting trigger pressure nut is in a shape of the reversed hollow cavity is respectively arranged at two ends of the two hollow heads arranged on the upper end of the upper shell with two hollow heads respectively, the end parts of the upper ends of the 2 ejector rods with the raised heads, which are arranged at one ends in the two circular hollow cavities of the upper shell, respectively extend out of the hollow through holes of the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts, and the end parts of the spare ends formed by the hollow through holes can respectively correspond to contacts of 2 microswitches which are arranged on the top surface of the upper shell by using a microswitches bracket and a high-low tooth self-tapping screw; the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts are rotated to have larger parts, and the lower bottom surfaces of the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts with larger parts can respectively apply different pressures to 2 springs which are sleeved on 2 ejector rods with raised heads at one ends; the end parts of the upper ends of the 2 ejector rods with the raised heads, which are arranged at one end in the two circular hollow cavities of the upper shell, respectively extend out of the hollow through holes of the 2 inverted hollow raised head-shaped adjusting trigger pressure nuts, and the vacant ends formed by the hollow through holes can respectively trigger contacts of 2 microswitches which are arranged on the top surface of the upper shell by using the microswitches bracket and the high-low tooth self-tapping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831179.8A CN110391110B (en) | 2019-09-04 | 2019-09-04 | Double-output type pressure-adjustable pressure switch for fire control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910831179.8A CN110391110B (en) | 2019-09-04 | 2019-09-04 | Double-output type pressure-adjustable pressure switch for fire control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110391110A CN110391110A (en) | 2019-10-29 |
| CN110391110B true CN110391110B (en) | 2024-04-26 |
Family
ID=68289740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910831179.8A Active CN110391110B (en) | 2019-09-04 | 2019-09-04 | Double-output type pressure-adjustable pressure switch for fire control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110391110B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3352983A (en) * | 1965-06-29 | 1967-11-14 | Controls Co Of America | Pressure switch and electrical switch therefor |
| US3786212A (en) * | 1971-05-31 | 1974-01-15 | E Weber | Condition responsive control device with capacity for independent adjustment of control points |
| US4109121A (en) * | 1976-07-22 | 1978-08-22 | Robertshaw Controls Company | Electrical switch construction and method of making the same |
| EP0173090A1 (en) * | 1984-08-15 | 1986-03-05 | Huba Control Ag | Pressure transducer for a pressure switch or regulator |
| CN101504897A (en) * | 2008-02-04 | 2009-08-12 | 詹奇峰 | Novel pressure tunable switch apparatus |
| CN101604597A (en) * | 2009-05-14 | 2009-12-16 | 佛山通宝股份有限公司 | A kind of compression-type temperature controller |
| CN102165380A (en) * | 2008-09-23 | 2011-08-24 | 泰本股份公司 | Manual switch for a mechanical time-switch clock |
| CN202196696U (en) * | 2011-06-08 | 2012-04-18 | 佛山市华诺温控器有限公司 | Double-pressure adjusting switch |
| CN102468086A (en) * | 2010-11-15 | 2012-05-23 | 龚红飞 | Improved pressure switch |
| DE202013100461U1 (en) * | 2013-02-01 | 2013-02-14 | Hetec Limited | Microswitch for a pressure switch with adjustable hysteresis and pressure switch with such microswitch |
| CN103794405A (en) * | 2014-01-29 | 2014-05-14 | 詹奇峰 | Small-size double-potential pressure switch with OFF/ON function |
| CN105108217A (en) * | 2015-10-12 | 2015-12-02 | 济南迈克阀门科技有限公司 | Equipment for machining 3-degree inclined sealing surfaces on two inner sides of body of sluice valve |
| CN207961626U (en) * | 2018-01-29 | 2018-10-12 | 胡永 | Synchronous biswitch pressure balance |
| CN210156309U (en) * | 2019-09-04 | 2020-03-17 | 济南迈克阀门科技有限公司 | Dual-output type pressure-adjustable pressure switch for fire fighting |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7511239B2 (en) * | 2005-03-31 | 2009-03-31 | Robertshaw Controls Company | Simultaneous control of multiple liquid level settings in a diaphragm valve, using a single rotatable control shaft |
| US8563884B2 (en) * | 2010-01-21 | 2013-10-22 | Dwyer Instruments, Inc. | Manual reset pressure switch |
| US8653387B2 (en) * | 2010-07-07 | 2014-02-18 | Ashcroft, Inc. | Rotary adjustment for dual switch assembly |
-
2019
- 2019-09-04 CN CN201910831179.8A patent/CN110391110B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3352983A (en) * | 1965-06-29 | 1967-11-14 | Controls Co Of America | Pressure switch and electrical switch therefor |
| US3786212A (en) * | 1971-05-31 | 1974-01-15 | E Weber | Condition responsive control device with capacity for independent adjustment of control points |
| US4109121A (en) * | 1976-07-22 | 1978-08-22 | Robertshaw Controls Company | Electrical switch construction and method of making the same |
| EP0173090A1 (en) * | 1984-08-15 | 1986-03-05 | Huba Control Ag | Pressure transducer for a pressure switch or regulator |
| CN101504897A (en) * | 2008-02-04 | 2009-08-12 | 詹奇峰 | Novel pressure tunable switch apparatus |
| CN102165380A (en) * | 2008-09-23 | 2011-08-24 | 泰本股份公司 | Manual switch for a mechanical time-switch clock |
| CN101604597A (en) * | 2009-05-14 | 2009-12-16 | 佛山通宝股份有限公司 | A kind of compression-type temperature controller |
| CN102468086A (en) * | 2010-11-15 | 2012-05-23 | 龚红飞 | Improved pressure switch |
| CN202196696U (en) * | 2011-06-08 | 2012-04-18 | 佛山市华诺温控器有限公司 | Double-pressure adjusting switch |
| DE202013100461U1 (en) * | 2013-02-01 | 2013-02-14 | Hetec Limited | Microswitch for a pressure switch with adjustable hysteresis and pressure switch with such microswitch |
| CN103794405A (en) * | 2014-01-29 | 2014-05-14 | 詹奇峰 | Small-size double-potential pressure switch with OFF/ON function |
| CN105108217A (en) * | 2015-10-12 | 2015-12-02 | 济南迈克阀门科技有限公司 | Equipment for machining 3-degree inclined sealing surfaces on two inner sides of body of sluice valve |
| CN207961626U (en) * | 2018-01-29 | 2018-10-12 | 胡永 | Synchronous biswitch pressure balance |
| CN210156309U (en) * | 2019-09-04 | 2020-03-17 | 济南迈克阀门科技有限公司 | Dual-output type pressure-adjustable pressure switch for fire fighting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110391110A (en) | 2019-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103616119B (en) | The fire extinguisher of pressure monitoring device and this pressure monitoring device of employing | |
| CN110588894B (en) | Anticollision water quality monitoring buoy | |
| CN210156309U (en) | Dual-output type pressure-adjustable pressure switch for fire fighting | |
| CN110391110B (en) | Double-output type pressure-adjustable pressure switch for fire control | |
| CN101584917A (en) | Automatic fire valve with manual operating device | |
| CN207238345U (en) | A kind of gardens nozzle | |
| CN218674036U (en) | Explosion-proof pressure transmitter | |
| CN108962672B (en) | Explosion-proof compact pressure switch and use method thereof | |
| CN2645065Y (en) | Pressure alarm | |
| JPH0152849B2 (en) | ||
| CN204034119U (en) | Fire-extinguishing apparatus and pressure signal feedback device | |
| CN210108598U (en) | Pressure alarm | |
| CN204619248U (en) | Reservoir pressure suspended type ultrafine dry powder extinguishing installation | |
| CN114768150A (en) | Fire control shower nozzle of alarm part side dress | |
| CN114011003A (en) | Fire control shower nozzle with alarming function | |
| CN213716798U (en) | Time-delay type pressure switch | |
| CN218685938U (en) | Dry-type spray nozzle hose | |
| CN218980318U (en) | Fire control shower nozzle of alarm part side dress | |
| CN110571098A (en) | Pressure relay | |
| US3217309A (en) | Pneumatically adjustable monitor for pressurized cables | |
| US4549853A (en) | Positive displacement pump output monitor | |
| CN2152126Y (en) | Simultanously open valve for fire extinguishing | |
| CN215105722U (en) | Novel fire hydrant | |
| CN219935182U (en) | Pressure gauge for hydraulic station | |
| CN220118780U (en) | Automatic detect wet-type alarm valve of leakproofness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |