CN112555159A - Energy-saving steady voltage water pump - Google Patents
Energy-saving steady voltage water pump Download PDFInfo
- Publication number
- CN112555159A CN112555159A CN202011438562.6A CN202011438562A CN112555159A CN 112555159 A CN112555159 A CN 112555159A CN 202011438562 A CN202011438562 A CN 202011438562A CN 112555159 A CN112555159 A CN 112555159A
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- water
- water outlet
- worm
- nut
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0027—Varying behaviour or the very pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of water pumps, in particular to an energy-saving pressure-stabilizing water pump which comprises a pump body, wherein a water inlet and a water outlet are formed in the pump body, an impeller is installed in the pump body, a sliding groove is formed in the water outlet, a pushing plate is installed in the sliding groove in a sliding mode, a sliding rod is fixedly installed on the pushing plate, a spring is sleeved on the sliding rod, a rack is fixedly connected onto the sliding rod, a guide wheel is installed on the rack, a worm wheel is installed on the rack in a meshed mode, a worm is installed on the worm wheel in a meshed mode, a driving rod is coaxially connected onto the worm; the water outlet of the pump body is internally provided with an air bag type unpowered automatic pressure stabilizing mechanism, water flow pressurization and depressurization at the water outlet can be carried out within a certain range, a push plate is used for acting on a water pressure balance detection structure, the form of the outer bag is changed, and the water outlet area of the air outlet is automatically adjusted, so that the water outlet pressure of the water pump is stabilized.
Description
Technical Field
The invention relates to the technical field of water pumps, in particular to an energy-saving pressure-stabilizing water pump.
Background
The water pump is main rivers supercharging equipment, has played a lot of important recessive effects in people's daily life, gives people the water and provides convenience. The common water pump can not be used independently in a pipe network, and a pressure stabilizing device must be equipped, because the water pump can change along with the pressure and flow of water during operation, the change of the pressure and the lift of a water outlet of the water pump is caused. If pressure stabilizing equipment is not arranged, the water pump is easy to cause overlarge pressure at the water outlet end in the using process, and when people cannot find the pressure stabilizing equipment in time, the water pump leaks.
Disclosure of Invention
The invention aims to provide an energy-saving pressure-stabilizing water pump to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an energy-saving pressure-stabilizing water pump comprises a pump body, wherein a water inlet and a water outlet are arranged on the pump body, an impeller is arranged in the pump body, a sliding groove is formed in the water outlet, a push plate is slidably arranged in the sliding groove, a sliding rod is fixedly arranged on the push plate, a spring is sleeved on the sliding rod, a rack is fixedly connected to the sliding rod, a guide wheel is arranged on the rack, a turbine is arranged in a meshed manner, a worm is arranged in a meshed manner, a driving rod is coaxially connected to the worm, the driving rod is rotatably arranged in a cavity, a first screw rod pair and a second screw rod pair are arranged on the driving rod, a first nut and a second nut are respectively arranged on the first screw rod pair and the second screw rod pair, a connecting rod is rotatably arranged on the first nut and the second nut, the connecting rod is rotatably arranged on a pressing plate, an inner bag is arranged in the cavity, and, the neck tube is connected to the outer bladder.
Preferably, be provided with the splitter box on the delivery port, and the rotation installs the pivot in the splitter box, fixed mounting has blade and centrifugal piece in the pivot, and fixed mounting has the pressure lamp in the delivery port.
Preferably, the pivot is installed among the change at splitter box middle part, and the splitter box setting in the lower lateral wall of delivery port, the installation is arranged in the pivot to the blade, and the centrifugal piece is located the middle part of pivot, the centrifugal piece comprises sleeve pipe and striking block, and is connected with balance spring on the striking block, the pressure lamp comprises pressure sensor and scintillation warning light.
Preferably, the water inlet and the water outlet are respectively arranged at two sides of the impeller, the sliding groove is formed in the upper side wall of the water outlet, the push plate penetrates through the sliding groove to be arranged, the sliding rod is vertically connected with the push plate, and the spring is connected between the groove wall of the sliding groove and the push plate.
Preferably, the worm wheel is connected between the rack and the worm, the worm and the driving rod are rotatably installed in a bearing of the cavity, the first screw rod pair and the second screw rod pair are arranged in opposite directions, and the first nut and the second nut are installed on the driving rod in a mirror image mode.
Preferably, the bottom of the connecting rod is connected to the center of the pressing plate, the pressing plate is pressed on the inner bag in a pressing mode, the neck tube penetrates and is communicated between the cavity and the water outlet, and the outer bag is fixedly mounted on a support on the side wall of the water outlet.
Compared with the prior art, the invention has the beneficial effects that:
1. the water outlet of the pump body is internally provided with an air bag type unpowered automatic pressure stabilizing mechanism, so that the water flow at the water outlet can be pressurized and depressurized within a certain range, the pump mainly comprises an inner air bag and an outer air bag, a push plate is used for acting on a water pressure balance detection structure, and the generated displacement can be projected on a pressure plate through a transmission structure in the process of keeping balance after being pressed, so that the form of the inner air bag is controlled, the form of the outer air bag is indirectly changed, the water outlet area of the air outlet is automatically adjusted, the pressure regulating effect is further realized, the water outlet pressure of the water pump is stabilized, and compared with an external pressure stabilizing device, the space occupation and the use cost can be reduced;
2. the pressure lamp is provided with a high-pressure early warning structure, a small amount of flow can be distributed at the water outlet through the flow distribution groove, normal water outlet is not affected, the water pressure at the water outlet is represented by the water flow velocity in the flow distribution groove, and the centrifugal block is driven to slide outwards by the increase of the water flow velocity under the high-pressure condition, so that the pressure lamp gives a flash warning to remind workers of reducing the pressure in time, and equipment is prevented from being damaged.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is an enlarged schematic view of the area B in fig. 1.
In the figure: the centrifugal pump comprises a pump body 1, a water inlet 2, a water outlet 3, an impeller 4, a sliding groove 5, a push plate 6, a sliding rod 7, a spring 8, a rack 9, a guide wheel 10, a turbine 11, a worm 12, a driving rod 13, a cavity 14, a first screw pair 15, a second screw pair 16, a first nut 17, a second nut 18, a connecting rod 19, a pressing plate 20, an inner bag 21, a neck tube 22, an outer bag 23, a diversion groove 24, a rotating shaft 25, blades 26, a centrifugal block 27 and a pressure lamp 28.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a technical solution: an energy-saving pressure-stabilizing water pump comprises a pump body 1, wherein a water inlet 2 and a water outlet 3 are arranged on the pump body 1, an impeller 4 is arranged in the pump body 1, a sliding groove 5 is arranged on the water outlet 3, a pushing plate 6 is slidably arranged in the sliding groove 5, a sliding rod 7 is fixedly arranged on the pushing plate 6, a spring 8 is sleeved on the sliding rod 7, a rack 9 is fixedly connected on the sliding rod 7, a guide wheel 10 is arranged on the rack 9, a turbine 11 is arranged on the rack 9 in a meshed manner, a worm 12 is arranged on the turbine 11 in a meshed manner, a driving rod 13 is coaxially connected on the worm 12, the driving rod 13 is rotatably arranged in a cavity 14, a first screw rod pair 15 and a second screw rod pair 16 are arranged on the driving rod 13, a first nut 17 and a second nut 18 are respectively arranged on the first screw rod pair 15 and the second screw rod pair 16, a connecting rod 19 is rotatably arranged on the first nut 17, an inner bag 21 is arranged in the cavity 14, the inner bag 21 is communicated with a neck pipe 22, and the neck pipe 22 is connected with an outer bag 23.
A diversion channel 24 is arranged on the water outlet 3, a rotating shaft 25 is rotatably arranged in the diversion channel 24, a blade 26 and a centrifugal block 27 are fixedly arranged on the rotating shaft 25, and a pressure lamp 28 is fixedly arranged in the water outlet 3;
a rotating shaft 25 is arranged in a rotating ring at the middle part of the diversion channel 24, the diversion channel 24 is arranged in the lower side wall of the water outlet 3, the blades 26 are arranged on the rotating shaft 25, and the centrifugal block 27 is located in the middle of the rotating shaft 25, the centrifugal block 27 is composed of a sleeve and an impact block, and the impact block is connected with a balance spring, the pressure lamp 28 is composed of a pressure sensor and a flashing warning lamp, the shunting groove 24 can shunt a small amount of water at the water outlet 3 without influencing the normal water outlet, and the water flow velocity in the diversion trench 24 can represent the water pressure at the water outlet 3, the water flow in the diversion trench 24 can drive the rotating shaft 25 to rotate through the blades 26, and the rotating speed of the rotating shaft 25 is in direct proportion to the water flow rate, and as the water flow rate increases, the centrifugal block 27 can slide outwards under the action of centrifugal force, thereby causing impact on the pressure lamp 28, giving a flash warning to remind the staff to reduce the pressure in time;
the water inlet 2 and the water outlet 3 are respectively arranged at two sides of the impeller 4, the sliding groove 5 is arranged in the upper side wall of the water outlet 3, the push plate 6 penetrates through the sliding groove 5 to be arranged, the sliding rod 7 is vertically connected with the push plate 6, the spring 8 is connected between the groove wall of the sliding groove 5 and the push plate 6, the water flow is accelerated through the rotation of the impeller 4, so that high-speed water flow is sent out from the water outlet 3, the water pressure of the water outlet 3 can act on the push plate 6, the sliding rod 7 slides, and the water pressure and the elastic force of the spring 8 are finally kept balanced;
the worm wheel 11 is connected between the rack 9 and the worm 12, the worm 12 and the driving rod 13 are rotatably mounted in bearings in the cavity 14, the first screw pair 15 and the second screw pair 16 are arranged in opposite directions, and a first nut 17 and a second nut 18 are mounted on the driving rod 13 in a mirror image manner, when the push plate 6 is stressed to reach the balance, the slide rod 7 and the rack 9 are driven to translate for a certain distance, so that the worm 12 is driven by the worm wheel 11, and the position change caused by the pressing of the push plate 6 can be reflected on the rotation of the worm 12, the rotation of the worm 12 can drive the driving rod 13 to coaxially rotate in the cavity 14, so that the first screw pair 15 and the second screw pair 16 drive the first nut 17 and the second nut 18 to move, since the directions of the first screw pair 15 and the second screw pair 16 are opposite, the directions of the first nut 17 and the second nut 18 moving when the driving rod 13 rotates are also opposite;
the bottom of the connecting rod 19 is connected to the center of the pressing plate 20, the pressing plate 20 is pressed on the inner bag 21 in a pressing mode, the neck tube 22 penetrates and is communicated between the cavity 14 and the water outlet 3, the outer bag 23 is fixedly installed on a support on the side wall of the water outlet 3, the pressing plate 20 can be driven to lift through the connecting rod 19 when the first nut 17 and the second nut 18 move, so that the effect of controlling the inner bag 21 to shrink and expand is achieved, when the inner bag 21 is extruded, air can be squeezed into the outer bag 23 through the neck tube 22 to expand, the area of the water outlet 3 is reduced, the pressurizing effect is achieved, otherwise, the pressure reducing effect is achieved, and pressure stabilization is assisted;
the working principle is as follows: firstly, when the pump body 1 is used, the water flow is accelerated through the rotation of the impeller 4, so that high-speed water flow is sent out from the water outlet 3, the diversion trench 24 can conduct a small amount of diversion at the water outlet 3 without influencing normal water outlet, the water flow speed in the diversion trench 24 can represent the water pressure at the water outlet 3, the water flow in the diversion trench 24 can drive the rotating shaft 25 to rotate through the blades 26, the rotating speed of the rotating shaft 25 is in direct proportion to the water flow speed, the centrifugal block 27 can slide outwards under the action of centrifugal force along with the increase of the water flow speed, so that the pressure lamp 28 is impacted, a flashing alarm is conducted, workers are reminded to reduce the pressure in time, the auxiliary pressure stabilizing mechanism is arranged in the water outlet 3, the pressure can be increased or reduced within a certain range, the water pressure of the water outlet 3 acts on the push plate 6, the slide rod 7 slides, and the water pressure and the elasticity of the spring 8 are, when the push plate 6 is pressed to reach a balance state, the slide rod 7 and the rack 9 are driven to translate at a certain distance, so that the worm 12 is driven through the turbine 11, the position change caused by the pressure of the push plate 6 can be reflected on the rotation of the worm 12, the worm 12 can drive the driving rod 13 to coaxially rotate in the cavity 14 when rotating, so that the first screw pair 15 and the second screw pair 16 drive the first nut 17 and the second nut 18 to move, because the directions of the first screw pair 15 and the second screw pair 16 are opposite, the moving directions of the first nut 17 and the second nut 18 are also opposite when the driving rod 13 rotates, the first nut 17 and the second nut 18 can drive the pressing plate 20 to lift through the connecting rod 19 when moving, so that the effect of controlling the inner bag 21 to shrink and expand is achieved, when the inner bag 21 is extruded, air can be extruded into the outer bag 23 through the neck tube 22 to expand, thereby reduce the area of delivery port 3, play the effect of pressure boost, otherwise then play the effect of decompression, supplementary steady voltage of having carried out guarantees the normal operating of water pump.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an energy-saving steady voltage water pump, includes pump body (1), its characterized in that: be provided with water inlet (2) and delivery port (3) on the pump body (1), and install impeller (4) in the pump body (1), be provided with spout (5) on delivery port (3), and slidable mounting has push pedal (6) in spout (5), fixed mounting has slide bar (7) on push pedal (6), and has cup jointed spring (8) on slide bar (7), fixedly connected with rack (9) on slide bar (7), and install leading wheel (10) on rack (9), turbine (11) are installed in rack (9) meshing, and worm (12) are installed in turbine (11) meshing, coaxial coupling has actuating lever (13) on worm (12), and actuating lever (13) rotate and install in cavity (14), be provided with first lead screw pair (15) and second lead screw pair (16) on actuating lever (13), and install first nut (17) and second nut (17) on first lead screw pair (15) and the second lead screw pair (16) respectively (16) 18) The connecting rod (19) is installed in the last rotation of first nut (17) and second nut (18), and connecting rod (19) rotate and install on clamp plate (20), install interior bag (21) in cavity (14), and interior bag (21) intercommunication has neck pipe (22), neck pipe (22) are connected on outer bag (23).
2. The energy-saving steady pressure water pump of claim 1, characterized in that: be provided with splitter box (24) on delivery port (3), and rotating in splitter box (24) installs pivot (25), fixed mounting has blade (26) and centrifugal piece (27) on pivot (25), and fixed mounting has pressure lamp (28) in delivery port (3).
3. The energy-saving steady pressure water pump of claim 2, characterized in that: pivot (25) are installed among the change at splitter box (24) middle part, and splitter box (24) set up in the lower lateral wall of delivery port (3), blade (26) are arranged the installation on pivot (25), and centrifugal piece (27) are located the middle part of pivot (25), centrifugal piece (27) comprise sleeve pipe and striking block, and are connected with balance spring on the striking block, pressure lamp (28) comprise pressure sensor and scintillation warning light.
4. The energy-saving steady pressure water pump of claim 1, characterized in that: water inlet (2) and delivery port (3) set up respectively in the both sides of impeller (4), and spout (5) set up in the last lateral wall of delivery port (3), push pedal (6) run through spout (5) and set up, and slide bar (7) are connected with push pedal (6) is perpendicular, spring (8) are connected between the cell wall of spout (5) and push pedal (6).
5. The energy-saving steady pressure water pump of claim 1, characterized in that: the worm wheel (11) is connected between the rack (9) and the worm (12), the worm (12) and the driving rod (13) are rotatably installed in a bearing of the cavity (14), the first screw rod pair (15) and the second screw rod pair (16) are arranged in opposite directions, and the first nut (17) and the second nut (18) are installed on the driving rod (13) in a mirror image mode.
6. The energy-saving steady pressure water pump of claim 1, characterized in that: the bottom of the connecting rod (19) is connected to the center of the pressing plate (20), the pressing plate (20) is pressed on the inner bag (21), the neck tube (22) penetrates and is communicated between the cavity (14) and the water outlet (3), and the outer bag (23) is fixedly installed on a support on the side wall of the water outlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438562.6A CN112555159B (en) | 2020-12-07 | 2020-12-07 | Energy-saving steady voltage water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438562.6A CN112555159B (en) | 2020-12-07 | 2020-12-07 | Energy-saving steady voltage water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112555159A true CN112555159A (en) | 2021-03-26 |
| CN112555159B CN112555159B (en) | 2022-05-17 |
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ID=75060631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011438562.6A Active CN112555159B (en) | 2020-12-07 | 2020-12-07 | Energy-saving steady voltage water pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN112555159B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053330A (en) * | 2023-10-11 | 2023-11-14 | 中兵长智科技有限责任公司 | Office environment monitoring and early warning device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976391A (en) * | 1974-05-09 | 1976-08-24 | Weir Pumps Limited | Rotodynamic fluid pumps |
| CN207246100U (en) * | 2017-11-14 | 2018-04-17 | 芜湖长江泵业有限公司 | A kind of voltage stabilizing current-limiting type centrifugal pump |
| CN208885537U (en) * | 2018-07-28 | 2019-05-21 | 河北寰亚泵业股份有限公司 | A kind of water pump of automatic Regulation |
| CN109854516A (en) * | 2019-02-16 | 2019-06-07 | 李河 | A kind of water pump automatically adjusting pump pressure |
| CN210290157U (en) * | 2019-08-13 | 2020-04-10 | 林秀培 | Energy-saving constant-frequency constant-pressure water pump |
| CN111306029A (en) * | 2020-04-15 | 2020-06-19 | 东阳面世建筑工程有限公司 | Equipment for keeping water pressure in water pipe constant |
| CN211599007U (en) * | 2019-09-18 | 2020-09-29 | 惠州市源立实业有限公司 | Water route double-sided mechanical seal pipeline pump with explosion-proof function |
| CN211874731U (en) * | 2019-12-13 | 2020-11-06 | 厦门钨业股份有限公司 | Water suction pump |
| CN212003605U (en) * | 2020-04-24 | 2020-11-24 | 杭州冠邦泵业有限公司 | Pipe centrifugal pump with noise reduction structure |
-
2020
- 2020-12-07 CN CN202011438562.6A patent/CN112555159B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976391A (en) * | 1974-05-09 | 1976-08-24 | Weir Pumps Limited | Rotodynamic fluid pumps |
| CN207246100U (en) * | 2017-11-14 | 2018-04-17 | 芜湖长江泵业有限公司 | A kind of voltage stabilizing current-limiting type centrifugal pump |
| CN208885537U (en) * | 2018-07-28 | 2019-05-21 | 河北寰亚泵业股份有限公司 | A kind of water pump of automatic Regulation |
| CN109854516A (en) * | 2019-02-16 | 2019-06-07 | 李河 | A kind of water pump automatically adjusting pump pressure |
| CN210290157U (en) * | 2019-08-13 | 2020-04-10 | 林秀培 | Energy-saving constant-frequency constant-pressure water pump |
| CN211599007U (en) * | 2019-09-18 | 2020-09-29 | 惠州市源立实业有限公司 | Water route double-sided mechanical seal pipeline pump with explosion-proof function |
| CN211874731U (en) * | 2019-12-13 | 2020-11-06 | 厦门钨业股份有限公司 | Water suction pump |
| CN111306029A (en) * | 2020-04-15 | 2020-06-19 | 东阳面世建筑工程有限公司 | Equipment for keeping water pressure in water pipe constant |
| CN212003605U (en) * | 2020-04-24 | 2020-11-24 | 杭州冠邦泵业有限公司 | Pipe centrifugal pump with noise reduction structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053330A (en) * | 2023-10-11 | 2023-11-14 | 中兵长智科技有限责任公司 | Office environment monitoring and early warning device and method |
| CN117053330B (en) * | 2023-10-11 | 2023-12-15 | 中兵长智科技有限责任公司 | Office environment monitoring and early warning device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112555159B (en) | 2022-05-17 |
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Effective date of registration: 20220428 Address after: 518100 No. 2, Baolong Third Road, Baolong Industrial City, Longgang District, Shenzhen, Guangdong Province Applicant after: SHENZHEN XINGRISHENG INDUSTRIAL Co.,Ltd. Address before: 550000 no.2708, south section of Huaxi Avenue, Huaxi District, Guiyang City, Guizhou Province Applicant before: Li Jiafei |
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