CN110409563B - Liquid level quick reaction device for prefabricated pump station - Google Patents
Liquid level quick reaction device for prefabricated pump station Download PDFInfo
- Publication number
- CN110409563B CN110409563B CN201910616946.3A CN201910616946A CN110409563B CN 110409563 B CN110409563 B CN 110409563B CN 201910616946 A CN201910616946 A CN 201910616946A CN 110409563 B CN110409563 B CN 110409563B
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- Prior art keywords
- liquid level
- conducting strip
- pump body
- pipe
- baffle
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- 239000007788 liquid Substances 0.000 title claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
-
- 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
- F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
- F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
- F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply
- F04D15/0236—Lack of liquid level being detected by analysing the parameters of the electric drive, e.g. current or power consumption
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a liquid level quick reaction device for a prefabricated pump station, and belongs to the field of pump station equipment. The liquid level rapid reaction device of the prefabricated pump station comprises a liquid level pipe, wherein the liquid level pipe is communicated with a pump body, a water retaining assembly used for blocking a water inlet pipe is arranged in the pump body, and a first control assembly and a second control assembly are respectively arranged at the bottom and the top of the liquid level pipe; the first control component automatically starts or stops the submersible pump according to the height of the liquid level in the pump body in a mechanical mode; the second control component automatically controls the water retaining component to block the water inlet pipe according to the height of the liquid level in the pump body. The liquid level quick reaction device for the prefabricated pump station, provided by the embodiment of the invention, can automatically stop the submersible pump when the liquid level in the pump body is low so as to prevent the submersible pump from being damaged; in addition, the liquid level quick reaction device for the prefabricated pump station provided by the embodiment of the invention can automatically give an alarm when the liquid level in the pump body is higher, and automatically control the third baffle plate to block the water inlet pipe.
Description
Technical Field
The invention relates to the field of pump station equipment, in particular to a liquid level quick reaction device for a prefabricated pump station.
Background
The prefabricated pump station is an integrated product integrating equipment such as a submersible pump, a monitoring instrument, a decontamination grid and the like, and can be applied to discharge and treatment of sewage, river water, rainwater and the like. Wherein, prefabricated pump station is at the during operation, and staff often need start or stop the immersible pump according to the height of the interior liquid level of the pump body.
However, the traditional prefabricated pump station generally adopts the cooperation of a liquid level sensor and a controller to realize the purpose of automatically starting or stopping the submersible pump, and the liquid level sensor and the controller have higher cost and are inconvenient to maintain, so the pump station is limited in application. In addition, when the liquid level of the traditional prefabricated pump station in the pump body is too high, the water inlet pipe cannot be automatically prevented from continuously feeding water into the pump body, and therefore the pump station still needs to be improved.
Disclosure of Invention
The invention aims to provide a liquid level quick reaction device for a prefabricated pump station, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a liquid level quick reaction device for a prefabricated pump station comprises a liquid level pipe, wherein the liquid level pipe is communicated with a pump body, the pump body is communicated with a water inlet pipe, a submersible pump and a water retaining assembly for blocking the water inlet pipe are arranged in the pump body, and a first control assembly and a second control assembly are respectively arranged at the bottom and the top of the liquid level pipe; the first control component automatically starts or stops the submersible pump according to the height of the liquid level in the pump body in a mechanical mode; the second control component automatically controls the water retaining component to block the water inlet pipe according to the height of the liquid level in the pump body.
According to a preferred scheme adopted by the embodiment of the invention, the first control assembly comprises a first conducting strip, a second conducting strip and a first sliding block which automatically drives the first conducting strip and the second conducting strip to be in contact according to the liquid level in the pump body, the first conducting strip is electrically connected with the submersible pump, and the second conducting strip is electrically connected with the power supply.
In another preferred scheme adopted by the embodiment of the invention, the first sliding block is in sliding fit with the water through pipe, and the water through pipe is communicated with the liquid level pipe; the first conducting strip is fixed on the first insulating plate, the first insulating plate is connected with the first baffle through a first spring, and the first baffle is fixed on the water service pipe; the first insulating plate is further connected with a first sliding rod, and the first sliding rod penetrates through the first baffle to be connected with the first sliding block.
According to another preferred scheme adopted by the embodiment of the invention, the second control assembly comprises a third conducting strip, a fourth conducting strip and a second sliding block which automatically drives the third conducting strip to be in contact with the fourth conducting strip according to the liquid level in the pump body, the third conducting strip is electrically connected with the water retaining assembly, and the fourth conducting strip is electrically connected with the power supply.
In another preferred scheme adopted in the embodiment of the present invention, the second slider is slidably attached to the liquid level tube, the third conductive sheet is fixed to a third insulating plate, the third insulating plate is connected to the second baffle through a second spring, and the second baffle is fixed to the top of the liquid level tube; the third insulating plate is further connected with a second sliding rod, and the second sliding rod penetrates through a second baffle to be connected with a second sliding block.
According to another preferable scheme adopted by the embodiment of the invention, the water retaining assembly comprises a third baffle, an electromagnet and a permanent magnet, wherein the third baffle is arranged on one side of the water inlet pipe and is connected with the inner wall of the pump body through a telescopic rod; the electromagnet is arranged on the inner wall of the pump body and is electrically connected with the third conducting strip; the permanent magnet is arranged on the third baffle, and the opposite magnetic poles of the electromagnet and the permanent magnet are opposite.
According to another preferred scheme adopted by the embodiment of the invention, the third conducting strip is electrically connected with an alarm.
According to another preferable scheme adopted by the embodiment of the invention, the third baffle is further connected with the inner wall of the pump body through a third spring.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following technical effects:
(1) the liquid level quick reaction device for the prefabricated pump station, provided by the embodiment of the invention, is low in cost and convenient to maintain, and the liquid level condition in the pump body can be quickly known by arranging the liquid level pipe with the floating ball and the scales to be communicated with the pump body.
(2) The embodiment of the invention also arranges the first control component with the first slide block, the first spring, the first conducting strip and the second conducting strip at the bottom of the liquid level pipe, electrically connects the first conducting strip with the submersible pump, and electrically connects the second conducting strip with the power supply, so that the submersible pump can be automatically started or stopped according to the liquid level in the pump body, and the submersible pump can be automatically stopped when the liquid level in the pump body is low, so as to prevent the submersible pump from being damaged.
(3) The embodiment of the invention also arranges the second control component with the second slide block, the second spring, the third conducting strip and the fourth conducting strip at the top of the liquid level tube, electrically connects the third conducting strip with the electromagnet and the alarm, and electrically connects the fourth conducting strip with the power supply, so that the water inlet tube can be automatically blocked by the third baffle plate according to the height of the liquid level in the pump body, and the alarm sound can be automatically sent out when the liquid level in the pump body is higher, and the water inlet tube can be automatically blocked by the third baffle plate to stop continuously sending water into the pump body.
Drawings
FIG. 1 is a perspective view of a liquid level fast reaction device of a prefabricated pump station provided in embodiment 1.
FIG. 2 is a schematic structural diagram of a liquid level fast reaction device of a prefabricated pump station provided in embodiment 1.
Fig. 3 is a schematic structural diagram of a first control assembly provided in embodiment 1.
Fig. 4 is a schematic structural diagram of a second control assembly provided in embodiment 1.
FIG. 5 is a schematic structural diagram of a liquid level fast reaction device of a prefabricated pump station provided in embodiment 2.
In the figure: 1-pump body, 2-water inlet pipe, 3-submersible pump, 4-communicating pipe, 5-liquid level pipe, 6-floating ball, 7-scale, 8-power supply, 9-third baffle, 10-telescopic rod, 11-third spring, 12-electromagnet, 13-permanent magnet, 14-mounting plate, 15-water pipe, 16-first baffle, 17-first slider, 18-first slide bar, 19-first spring, 20-first insulating plate, 21-first conducting strip, 22-second conducting strip, 23-second insulating plate, 24-second baffle, 25-second slider, 26-second slide bar, 27-second spring, 28-third insulating plate, 29-third conducting strip, 30-fourth conducting strip, 31-a fourth insulating plate and 32-an alarm.
Detailed Description
The following specific embodiments are specifically and clearly described in the technical solutions of the present application with reference to the drawings provided in the present specification. The drawings in the specification are for clarity of presentation of the technical solutions of the present application, and do not represent shapes or sizes in actual production or use, and reference numerals of the drawings are not limited to the claims involved.
In addition, in the description of the present application, terms used should be construed broadly, and specific meanings of the terms may be understood by those skilled in the art according to actual situations. For example, the term "mounted" as used in this application may be defined as a fixed mounting that is removable or a fixed mounting that is not removable, etc.; the terms "set" and "provided" as used herein may be defined as either a contact or a non-contact arrangement, etc.; the terms "connected" and "coupled" as used herein may be defined as mechanically, electrically, or both fixedly and removably coupled; the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; all the terms of orientation used are used with reference to the drawings or are based on the direction defined by the actual situation and the common general knowledge.
Example 1
Referring to the attached drawings 1-4, the embodiment provides a liquid level rapid reaction device of a prefabricated pump station, which comprises a liquid level pipe 5, wherein the liquid level pipe 5 is communicated with a pump body 1 through a communicating pipe 4, and the inner diameter of the communicating pipe 4 is smaller than that of the liquid level pipe 5; the liquid level pipe 5 in be equipped with floater 6, the outer wall superscript of liquid level pipe 5 has scale 7, and liquid level pipe 5 is transparent materials such as glass to learn the liquid level height in the pump body 1 in convenient to. The pump body 1 be linked together with inlet tube 2, can send water in the pump body 1 through inlet tube 2, the pump body 1 in be equipped with immersible pump 3, immersible pump 3 is used for discharging the water in the pump body 1.
Further, a water retaining assembly for blocking the water inlet pipe 2 is further arranged in the pump body 1, and a first control assembly and a second control assembly are respectively arranged at the bottom and the top of the liquid level pipe 5; the first control component automatically starts or stops the submersible pump 3 according to the height of the liquid level in the pump body 1; the second control component automatically controls the water retaining component to block the water inlet pipe 2 according to the height of the liquid level in the pump body 1.
Specifically, the water retaining assembly comprises a third baffle 9, an electromagnet 12 and a permanent magnet 13, wherein the third baffle 9 is arranged on one side of the water inlet pipe 2 and is connected with the inner wall of the pump body 1 through a telescopic rod 10; the electromagnet 12 is fixedly arranged on the inner wall of the pump body 1, the permanent magnet 13 is fixed on the third baffle 9, and the opposite magnetic poles of the electromagnet 12 and the permanent magnet 13 are opposite. When the electromagnet 12 is energized, the electromagnet 12 generates magnetism, and attracts the permanent magnet 13, so that the third baffle 9 is displaced toward the side close to the water inlet pipe 2, and the water inlet pipe 2 can be blocked by the third baffle 9, thereby preventing the water in the water inlet pipe 2 from entering the pump body 1.
In addition, the third baffle 9 is also connected with the inner wall of the pump body 1 through a third spring 11; when giving the power off of electromagnet 12, electromagnet 12 loses magnetism, under the bounce effect of third spring 11 for third baffle 9 is toward keeping away from one side of inlet tube 2 and is shifted, thereby can make third baffle 9 break away from and contact with inlet tube 2, so that the water in the inlet tube 2 enters into in the pump body 1 again.
Further, the first control assembly comprises a first conducting strip 21, a second conducting strip 22 and a first sliding block 17, the first conducting strip 21 is electrically connected with the submersible pump 3, the second conducting strip 22 is electrically connected with the power supply 8, the positive pole of the specific power supply 8 is electrically connected with the second conducting strip 22, and the negative pole of the power supply 8 is electrically connected with the submersible pump 3.
In addition, the first slide block 17 is in sliding fit with the water pipe 15, and the water pipe 15 is communicated with the liquid level pipe 5; the first conducting strip 21 is fixed on the first insulating plate 20, the second conducting strip 22 is fixed on the second insulating plate 23, and the second insulating plate 23 is fixed on the side wall of the pump body 1; the first insulating plate 20 is connected with the first baffle 16 through a first spring 19, and the first baffle 16 is fixed on the water service pipe 15; the first insulating plate 20 is also fixedly connected with the first sliding rod 18, and the first sliding rod 18 passes through the first baffle 16 and is fixedly connected with the first sliding block 17.
The first sliding block 17 can automatically drive the first conducting strip 21 to contact with the second conducting strip 22 according to the height of the liquid level in the pump body 1, specifically, when the liquid level in the pump body 1 is higher than the position of the water service pipe 15, water in the pump body 1 can enter the water service pipe 15 through the communicating pipe 4 and the liquid level pipe 5, so that the first sliding block 17 in the water service pipe 15 is displaced towards one side close to the first conducting strip 21, the first conducting strip 21 can be contacted with the second conducting strip 22, and the purpose of automatically starting the submersible pump 3 is achieved; on the contrary, when the liquid level in the pump body 1 is lower than the position of the water pipe 15, the water in the water pipe 15 can return to the pump body 1 through the communicating pipe 4 and the liquid level pipe 5, at this time, under the action of the repulsive force of the first spring 19, the first slider 17 in the water pipe 15 is displaced to the side away from the first conductive plate 21, so that the first conductive plate 21 can be separated from the contact with the second conductive plate 22, and the purpose of automatically stopping the submersible pump 3 is achieved.
Further, the second control assembly comprises a third conductive sheet 29, a fourth conductive sheet 30 and a second slider 25, the third conductive sheet 29 is electrically connected with the electromagnet 12, the fourth conductive sheet 30 is electrically connected with the power supply 8, specifically, the anode of the power supply 8 is electrically connected with the fourth conductive sheet 30, and the cathode of the power supply 8 is electrically connected with the electromagnet 12.
In addition, the second slider 25 is in sliding fit with the liquid level pipe 5, the third conducting strip 29 is fixed on a third insulating plate 28, the fourth conducting strip 30 is fixed on a fourth insulating plate 31, the fourth insulating plate 31 is fixed on the mounting plate 14, and the mounting plate 14 is fixed on the side wall of the pump body 1; the third insulating plate 28 is connected with the second baffle 24 through a second spring 27, and the second baffle 24 is fixed at the top of the liquid level pipe 5; the third insulating plate 28 is also fixedly connected with the second sliding bar 26, and the second sliding bar 26 passes through the second baffle 24 and is fixedly connected with the second sliding block 25.
The second slider 25 can automatically drive the third conductive sheet 29 to contact with the fourth conductive sheet 30 according to the height of the liquid level in the pump body 1, specifically, as the liquid level in the pump body 1 rises, water in the pump body 1 can enter the liquid level pipe 5 through the communicating pipe 4, so that the floating ball 6 in the liquid level pipe 5 floats upwards, and when the floating ball 6 floats to the top of the liquid level pipe 5, the second slider 25 can be driven to move upwards, so that the third conductive sheet 29 can contact with the fourth conductive sheet 30, and the electromagnet 12 can be automatically electrified to control the third baffle 9 to block the water inlet pipe 2; conversely, when the liquid level in the pump body 1 begins to drop, the floating ball 6 is displaced downwards, so that the third conductive plate 29 is separated from the contact with the fourth conductive plate 30, and the electromagnet 12 can be automatically de-energized to control the third baffle 9 to be separated from the contact with the water inlet pipe 2.
Example 2
Referring to fig. 5, in order to facilitate to know whether the liquid level in the pump body 1 is too high, the embodiment is improved on the basis of embodiment 1, specifically, an alarm 32 is further installed on the pump body 1, and the alarm 32 may be a buzzer alarm in the prior art; in addition, the third conductive sheet 29 is electrically connected with the alarm 32, and the alarm 32 is also electrically connected with the negative electrode of the power supply 8. When the liquid level in the pump body 1 is too high, when the floater 6 in the liquid level pipe 5 floats to the top of the liquid level pipe 5, the third conducting strip 29 can contact with the fourth conducting strip 30, the alarm 32 can form a circuit loop with the power supply 8, so that the water inlet pipe 2 can be blocked by the third baffle 9 under the automatic control, and the alarm 32 is automatically started to give an alarm sound, so that the working personnel can know the liquid level in the pump body 1.
With reference to the embodiments 1-2, the liquid level fast reaction device for the prefabricated pump station provided by the embodiment of the invention can know the liquid level condition in the pump body 1 by arranging the liquid level pipe 5 with the floating ball 6 and the scales 7 to be communicated with the pump body 1. In the embodiment of the invention, the first control assembly with the first slider 17, the first spring 19, the first conducting strip 21 and the second conducting strip 22 is arranged at the bottom of the liquid level pipe 5, the first conducting strip 21 is electrically connected with the submersible pump 3, and the second conducting strip 22 is electrically connected with the power supply 8, so that the submersible pump 3 can be automatically started or stopped according to the liquid level in the pump body 1, and the submersible pump 3 can be automatically stopped when the liquid level in the pump body 1 is low, so that the submersible pump 3 is prevented from being damaged.
In addition, the embodiment of the invention also arranges the second control component with the second slider 25, the second spring 27, the third conducting strip 29 and the fourth conducting strip 30 at the top of the liquid level tube 5, electrically connects the third conducting strip 29 with the electromagnet 12 and the alarm 32, and electrically connects the fourth conducting strip 30 with the power supply 8, so that the third baffle 9 can be automatically controlled to block the water inlet tube 2 according to the height of the liquid level in the pump body 1, thereby automatically giving an alarm when the liquid level in the pump body 1 is higher, and automatically controlling the third baffle 9 to block the water inlet tube 2 to stop continuously feeding water into the pump body 1.
It should be noted that the above embodiments are only specific and clear descriptions of technical solutions and technical features of the present application. However, to those skilled in the art, aspects or features that are part of the prior art or common general knowledge are not described in detail in the above embodiments.
Of course, the technical solutions of the present application are not limited to the above-mentioned embodiments, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may also be appropriately combined, so that other embodiments that may be understood by those skilled in the art may be formed.
Claims (1)
1. The liquid level rapid reaction device for the prefabricated pump station comprises a liquid level pipe (5), wherein the liquid level pipe (5) is communicated with a pump body (1), the pump body (1) is communicated with a water inlet pipe (2), and a submersible pump (3) is arranged in the pump body (1), and the liquid level rapid reaction device is characterized in that a water retaining component for blocking the water inlet pipe (2) is further arranged in the pump body (1), and a first control component and a second control component are respectively arranged at the bottom and the top of the liquid level pipe (5); the first control component automatically starts or stops the submersible pump (3) according to the height of the liquid level in the pump body (1); the second control component automatically controls the water retaining component to block the water inlet pipe (2) according to the height of the liquid level in the pump body (1);
the first control assembly comprises a first conducting strip (21), a second conducting strip (22) and a first sliding block (17) which automatically drives the first conducting strip (21) to be in contact with the second conducting strip (22) according to the height of the liquid level in the pump body (1), the first conducting strip (21) is electrically connected with the submersible pump (3), and the second conducting strip (22) is electrically connected with the power supply (8);
the first sliding block (17) is in sliding fit with the water through pipe (15), and the water through pipe (15) is communicated with the liquid level pipe (5); the first conducting strip (21) is fixed on the first insulating plate (20), the first insulating plate (20) is connected with the first baffle (16) through the first spring (19), and the first baffle (16) is fixed on the water service pipe (15); the first insulating plate (20) is also connected with a first sliding rod (18), and the first sliding rod (18) passes through a first baffle (16) and is connected with a first sliding block (17);
the second control assembly comprises a third conducting strip (29), a fourth conducting strip (30) and a second sliding block (25) which automatically drives the third conducting strip (29) to be in contact with the fourth conducting strip (30) according to the height of the liquid level in the pump body (1), the third conducting strip (29) is electrically connected with the water retaining assembly, and the fourth conducting strip (30) is electrically connected with the power supply (8);
the second sliding block (25) is in sliding fit with the liquid level pipe (5), the third conducting strip (29) is fixed on a third insulating plate (28), the third insulating plate (28) is connected with a second baffle (24) through a second spring (27), and the second baffle (24) is fixed at the top of the liquid level pipe (5); the third insulating plate (28) is also connected with a second sliding rod (26), and the second sliding rod (26) penetrates through a second baffle (24) to be connected with a second sliding block (25);
the water retaining assembly comprises a third baffle (9), an electromagnet (12) and a permanent magnet (13), wherein the third baffle (9) is arranged on one side of the water inlet pipe (2) and is connected with the inner wall of the pump body (1) through a telescopic rod (10); the electromagnet (12) is arranged on the inner wall of the pump body (1) and is electrically connected with the third conducting strip (29); the permanent magnet (13) is arranged on the third baffle (9), and the opposite magnetic poles of the electromagnet (12) and the permanent magnet (13) are opposite;
the third conducting strip (29) is also electrically connected with the alarm (32);
the third baffle (9) is also connected with the inner wall of the pump body (1) through a third spring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910616946.3A CN110409563B (en) | 2019-07-09 | 2019-07-09 | Liquid level quick reaction device for prefabricated pump station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910616946.3A CN110409563B (en) | 2019-07-09 | 2019-07-09 | Liquid level quick reaction device for prefabricated pump station |
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| CN110409563A CN110409563A (en) | 2019-11-05 |
| CN110409563B true CN110409563B (en) | 2021-03-12 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2916721Y (en) * | 2005-08-12 | 2007-06-27 | 黄新明 | Water level sensor |
| KR101602786B1 (en) * | 2014-08-22 | 2016-03-21 | 이지성 | System for controlling level liquid material of high temperature and pressure |
| CN207144142U (en) * | 2017-08-28 | 2018-03-27 | 简丹 | A kind of sewage pumping station of automation |
| CN108824618A (en) * | 2018-07-03 | 2018-11-16 | 安徽海沃特水务股份有限公司 | A kind of integrated pump station level monitoring automatic control device technical field |
| CN208421650U (en) * | 2018-07-06 | 2019-01-22 | 深圳世能科泰能源技术股份有限公司 | A kind of liquid level monitoring device |
| CN208685780U (en) * | 2018-08-09 | 2019-04-02 | 中国铁路设计集团有限公司 | A kind of sewage lifter of easy maintenance |
| CN209053197U (en) * | 2018-10-12 | 2019-07-02 | 湖南主导科技发展有限公司 | A kind of automatic control supply and drain water system with reserve pump |
| CN208999838U (en) * | 2018-11-01 | 2019-06-18 | 湖北金汉江精制棉有限公司 | Aqueous level control device |
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Effective date of registration: 20200518 Address after: 201406 Shanghai city Fengxian District Ning Fu Road No. 628 two workshop and office building Applicant after: SHANGHAI KECHU MACHINERY EQUIPMENT CO.,LTD. Applicant after: Jiangsu Kejian Fluid Machinery Co.,Ltd. Address before: 201406 Shanghai city Fengxian District Ning Fu Road No. 628 two workshop and office building Applicant before: SHANGHAI KECHU MACHINERY EQUIPMENT Co.,Ltd. |
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Address after: 201406 workshop 2 and office building, 628 Ningfu Road, Fengxian District, Shanghai Patentee after: Shanghai Kechu machinery (Group) Co.,Ltd. Patentee after: Jiangsu Kejian Fluid Machinery Co.,Ltd. Address before: 201406 workshop 2 and office building, 628 Ningfu Road, Fengxian District, Shanghai Patentee before: SHANGHAI KECHU MACHINERY EQUIPMENT Co.,Ltd. Patentee before: Jiangsu Kejian Fluid Machinery Co.,Ltd. |
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Effective date of registration: 20220721 Address after: 201406 workshop 2 and office building, 628 Ningfu Road, Fengxian District, Shanghai Patentee after: Shanghai Kechu machinery (Group) Co.,Ltd. Address before: 201406 workshop 2 and office building, 628 Ningfu Road, Fengxian District, Shanghai Patentee before: Shanghai Kechu machinery (Group) Co.,Ltd. Patentee before: Jiangsu Kejian Fluid Machinery Co.,Ltd. |
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