CN113175030A - Adjustable ground liquid level protector - Google Patents
Adjustable ground liquid level protector Download PDFInfo
- Publication number
- CN113175030A CN113175030A CN202110558554.3A CN202110558554A CN113175030A CN 113175030 A CN113175030 A CN 113175030A CN 202110558554 A CN202110558554 A CN 202110558554A CN 113175030 A CN113175030 A CN 113175030A
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- China
- Prior art keywords
- liquid level
- angular
- clamping
- hole
- connecting pipe
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 230000001012 protector Effects 0.000 title claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 3
- 238000009958 sewing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 27
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000034817 Waterborne disease Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to the technical field of ground liquid level protection devices, in particular to an adjustable ground liquid level protector.A liquid level switch sensor is electrically connected with a PLC (programmable logic controller) of a control cabinet, a fixing plate is inserted into a slot on the side wall of a connecting pipe, through holes on two sides of the middle through hole of the fixing plate are provided with fixing bolts, the bottom surface of a liquid level switch is provided with a threaded hole in threaded sleeve connection with the fixing bolts, the top end of a supporting pipe is sleeved in the inner cavity of the connecting pipe, a clamping jaw on the inner side of the top end of an angular supporting leg is in clamping connection with a slotted hole on the side wall of the connecting pipe, the bottom of the angular supporting leg is provided with a first clamping groove in clamping connection with the bottom end of the supporting pipe, a clamping head is uniformly arranged on a fixing disc along an annular shape and is in clamping connection with a second clamping groove arranged at the bottom end of the angular supporting leg along an annular sliding way, and a rubber plug is fixedly connected to the top surface of the fixing disc at a position close to the angular supporting leg; the problems that the ground liquid level protection device is inconvenient to install and remove, the water pump room ground waterproof layer is easy to damage, and water cut-off and power cut-off are difficult to be executed step by step according to the water trouble condition are solved.
Description
Technical Field
The invention relates to the technical field of ground liquid level protection devices, in particular to an adjustable ground liquid level protector.
Background
At present, a water pump room is generally designed in a basement, and most of electric control cabinets of the water pump room are directly arranged on the ground or on a platform slightly higher than the ground. When a water pump room suffers from flood, equipment such as an electric cabinet can be flooded, and potential safety hazards and property loss exist. Therefore, a ground liquid level detection device is required to be arranged in the water pump room. However, the current common ground liquid level protection device is difficult to perform two-step operations of water cut-off and power cut-off according to the water-borne disease reason and the water-borne disease water level height; in addition, the common ground liquid level detection device is generally fixed on the ground of the water pump room by adopting a fastening mode of expansion bolts, is inconvenient to install, remove and transfer, and damages a waterproof layer on the ground in the water pump room.
Disclosure of Invention
The invention aims to provide an adjustable ground liquid level protector which is used for solving the problems that a ground liquid level protection device in the prior art is inconvenient to install and dismantle, a ground waterproof layer in a water pump room is easy to damage, and water and power failure are difficult to execute step by step according to water trouble conditions.
In order to achieve the purpose, the invention provides the following technical scheme: the adjustable ground liquid level protector comprises a liquid level switch, a connecting pipe, a fixing plate, a connecting bolt, a supporting pipe, an angular supporting leg, a fixing disc and a rubber plug, wherein the output end of the liquid level switch sensor is electrically connected with a PLC (programmable logic controller) of the control cabinet;
wherein, the position of the side wall of the connecting pipe close to the top end is provided with a slot along the horizontal direction;
the fixing plate is inserted into the slot, a middle through hole is formed in the center of the fixing plate, and through holes on two sides are formed in the positions, located on two sides of the middle through hole, of the fixing plate respectively;
the bottom surface of the liquid level switch is provided with a threaded hole which is in threaded sleeve matching with the fixed bolt;
the top end of the supporting pipe is sleeved at the bottom of the inner cavity of the connecting pipe;
the inner side of the top end of the angular support leg is provided with a clamping jaw, the side wall of the connecting pipe is uniformly provided with a groove hole matched with the clamping jaw in a clamping manner along an annular shape, and the bottom of the angular support leg is provided with a first clamping groove matched with the bottom end of the supporting pipe in a clamping manner;
the fixing disc is uniformly provided with clamping heads along the annular shape, and the bottom end of the angular supporting leg is provided with a second clamping groove matched with the clamping heads in a sliding clamping mode along the annular shape;
wherein, the rubber buffer fixed connection in the fixed disk top surface is close to the position of angular leg, just the rubber buffer is used for restricting the dop for the second draw-in groove rotates.
Preferably, the inboard jack catch in angular form landing leg top includes first jack catch and second jack catch, the second jack catch set up in the below of first jack catch, the slotted hole of connecting pipe lateral wall includes first slotted hole and second slotted hole, first slotted hole and second slotted hole correspond respectively with first jack catch and second jack catch joint match.
Preferably, the top surface of the fixed disc is provided with positioning holes respectively, which are matched with the rubber plug in a sleeved mode, at positions close to the clamping heads.
Preferably, the top surface of the fixed plate is provided with a through hole at a position between two adjacent angle-shaped support legs, and the through hole is used for inserting a sewing bolt to fixedly connect the fixed plates in a stacking manner.
Preferably, the number of said angular legs is three.
Preferably, the inner edge of the bottom end of the angular support leg is provided with a bulge, and the bulge is used for supporting the bottom surface of the sensor of the liquid level switch.
Preferably, the top surface of the inner edge of the first claw is provided with a protrusion.
Preferably, the fixed disc is made of stainless steel.
Preferably, the connecting pipe, the fixing plate, the supporting pipe and the angular leg are made of one of stainless steel and plastic.
Preferably, tooth-shaped openings are formed in the middle of the bottom ends of the angular support legs respectively, and the tooth-shaped openings are used for binding and connecting the bottom ends of the angular support legs through self-locking stainless steel bands.
Compared with the prior art, the invention has the beneficial effects that:
1. the adjustable ground liquid level protector can be conveniently and flexibly mounted and dismounted, so that the adjustable ground liquid level protector is convenient for practical application.
2. The adjustable ground liquid level protector not only can be flexibly arranged on the ground of a water pump room, but also can be conveniently adjusted in the arrangement position.
3. The adjustable ground liquid level protector provided by the invention cannot damage the ground of a water pump room in the use process, so that a waterproof layer of the ground is prevented from being damaged due to installation of the ground liquid level protector.
4. The adjustable ground liquid level protector has the advantages of better stress condition of the whole structure, good stability, better support of the liquid level switch and avoidance of the problem of instability of the device caused by rising of ground liquid level.
5. The adjustable ground liquid level protector can respectively carry out water cut-off and power cut-off operations according to the water trouble condition, and can ensure the safety of a pump room and reduce loss to the maximum extent when the water trouble occurs.
Drawings
FIG. 1 is a schematic view of the overall assembly structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic top view of the fixing plate of the present invention.
In the figure: 1-a liquid level switch; 2-connecting pipe; 21-a first slot; 22-a second slot; 23-a slot; 3, fixing a plate; 31-a middle through hole; 32-two-side through holes; 4-connecting bolts; 5-supporting the tube; 6-angle shaped legs; 61-a first jaw; 62-a second jaw; 63-a first card slot; 64-a second card slot; 65-a tooth-shaped notch; 7-fixing the disc; 71-clamping head; 72-positioning holes; 73-perforation; 8-rubber plug.
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. 1-3, the invention provides a technical scheme, an adjustable ground liquid level protector, which comprises a liquid level switch 1, a connecting pipe 2, a fixing plate 3, a connecting bolt 4, a supporting pipe 5, an angular supporting leg 6, a fixing disc 7 and a rubber plug 8, wherein the output end of a sensor of the liquid level switch 1 is electrically connected with a PLC of a control cabinet, and the PLC is in electric signal connection with an information platform system;
wherein, the position of the side wall of the connecting pipe 2 close to the top end is provided with a slot 23 along the horizontal direction;
wherein, the fixing plate 3 is inserted into the slot 23, the center of the fixing plate 3 is provided with a middle through hole 31, and the positions of the fixing plate 3 at the two sides of the middle through hole 31 are respectively provided with two side through holes 32;
the position, close to the bottom end, of the fixing bolt 4 is sleeved in the through holes 32 on the two sides, and the bottom surface of the liquid level switch 1 is provided with a threaded hole matched with the fixing bolt 4 in a threaded sleeve manner;
wherein, the top end of the supporting tube 5 is sleeved at the bottom of the inner cavity of the connecting tube 2;
the inner side of the top end of the angular support leg 6 is provided with a clamping jaw, the side wall of the connecting pipe 2 is uniformly provided with a groove hole matched with the clamping jaw in a clamping manner along an annular shape, and the bottom of the angular support leg 6 is provided with a first clamping groove 63 matched with the bottom end of the supporting pipe 5 in a clamping manner;
the fixing disc 7 is uniformly provided with clamping heads 71 along the annular shape, and the bottom end of the angular supporting leg 6 is provided with a second clamping groove 64 matched with the clamping heads 71 in a sliding clamping manner along the annular shape;
wherein, the rubber stopper 8 is fixedly connected to the top surface of the fixed disk 7 at a position close to the angular leg 6, and the rubber stopper 8 is used for limiting the rotation of the chuck 71 relative to the second clamping groove 64.
In this embodiment, the jaws at the inner side of the top end of the angular leg 6 include a first jaw 61 and a second jaw 62, the second jaw 62 is disposed below the first jaw 61, the slot of the side wall of the connecting pipe 2 includes a first slot 21 and a second slot 22, and the first slot 21 and the second slot 22 are respectively and correspondingly matched with the first jaw 61 and the second jaw 62 in a clamping manner.
In this embodiment, the top surface of the fixing plate 7 near the chuck 71 is respectively provided with positioning holes 72 in sleeve connection with the rubber plug 8
In this embodiment, the top surface of the fixing plate 7 is provided with through holes 73 at positions between two adjacent angle-shaped legs 6, and the through holes 73 are used for inserting suture bolts to fixedly connect the fixing plates 7 in a stacking manner.
In the present embodiment, the number of the angular legs 6 is three.
In this embodiment, the inner edge of the bottom end of the angular leg 6 is provided with a protrusion for supporting the bottom surface of the sensor of the liquid level switch 1.
In this embodiment, the top surface of the inner edge of the first jaw 61 is provided with a protrusion.
In this embodiment, the fixing plate 7 is made of stainless steel.
In this embodiment, the connecting tube 2, the fixing plate 3, the supporting tube 5 and the angular leg 6 are made of one of stainless steel and plastic.
In this embodiment, the middle part of angular form landing leg 6 bottom has seted up tooth-shaped opening 65 respectively, and tooth-shaped opening 65 is used for connecting the bottom ligature of angular form landing leg 6 through from locking-type stainless steel ribbon.
The working principle is as follows: when in use, the fixing plate 3 is inserted into the slot 23; then, the sensor of the liquid level switch 1 penetrates through the middle through hole 31, the connecting bolt 4 is installed from the lower side of the fixing plate 3, and when the connecting bolt 4 is installed, the sensor penetrates through the through holes 32 on the two sides and then is in threaded sleeve joint with the threaded hole in the bottom surface of the liquid level switch 1, and the connecting bolt 4 is fastened; the top end of the supporting tube 5 is sleeved into the inner cavity of the connecting tube 2, and the first claw 61 and the second clamping and rotating claw 62 of the angular supporting leg 6 are correspondingly clamped in the first slotted hole 21 and the second slotted hole 22 of the side wall of the connecting tube 2 respectively; lifting the supporting tube 5 upwards and then dropping the supporting tube 5, so that the bottom end of the supporting tube 5 is clamped in the first clamping groove 63; aligning the clamping heads 71 of the fixed disc 7 with the second clamping grooves 64 of the angular support legs 6 respectively, and then rotating the fixed disc 7 to enable the clamping heads 71 to be clamped into the corresponding second clamping grooves 64 in a rotating mode respectively; sleeving the rubber plug 8 in the positioning hole 72, and sequentially penetrating the self-locking stainless steel ribbon through the tooth-shaped openings 65 in the middle of the bottom ends of the angular support legs 6 to bind and connect the bottom ends of the angular support legs 6 so as to complete the installation of the integral structure; on site, a plurality of fixed disks 7 can be selected and placed in a stacking mode according to needs, and then the fixed disks are sequentially inserted into the through holes 73 by using sewing bolts and then nuts are fastened, so that the fixed disks 7 are fixedly connected in the stacking mode, the balance weight of the device is increased, and the overall stability is improved; when a sensor in the device detects a water level below 5cm, a signal is transmitted to a PLC (programmable logic controller) of an electric control cabinet, the PLC controls an electric valve to close the device to stop water supply, and water cut-off content is uploaded to an information platform system and local responsible personnel; because the existing water pump house is generally designed in a basement, the water quantity is very large because of the water inlet of the basement caused by rainfall and the like, and the operation is carried out when a sensor of the device detects the water level below 5cm (the height value can be set according to the field condition); when the water level of more than 20cm (height value can be set according to the field condition) is detected, the PLC of the electric control cabinet uploads the power-off signal to the information platform system and local responsible personnel, and then the intelligent switch executes the power-off command, so that the potential safety hazard is reduced, and the property loss is reduced to the maximum extent.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (10)
1. Ground liquid level protector with adjustable, including liquid level switch (1), its characterized in that still includes:
a connecting pipe (2);
a fixing plate (3);
a connecting bolt (4);
a support tube (5);
an angular leg (6);
a fixed disk (7) and
the output end of the liquid level switch (1) sensor is electrically connected with the PLC of the control cabinet;
wherein, a slot (23) is arranged on the side wall of the connecting pipe (2) close to the top end along the horizontal direction;
the fixing plate (3) is inserted into the slot (23), a middle through hole (31) is formed in the center of the fixing plate (3), and through holes (32) on two sides are formed in the positions, located on two sides of the middle through hole (31), of the fixing plate (3) respectively;
the position, close to the bottom end, of the fixing bolt (4) is sleeved in the through holes (32) on the two sides, and a threaded hole matched with the fixing bolt (4) in a threaded sleeve mode is formed in the bottom surface of the liquid level switch (1);
the top end of the supporting tube (5) is sleeved at the bottom of the inner cavity of the connecting tube (2);
the inner side of the top end of the angular support leg (6) is provided with a clamping jaw, the side wall of the connecting pipe (2) is uniformly provided with a groove hole matched with the clamping jaw in a clamping manner along an annular shape, and the bottom of the angular support leg (6) is provided with a first clamping groove (63) matched with the bottom end of the supporting pipe (5) in a clamping manner;
the fixed disc (7) is uniformly provided with clamping heads (71) along the annular direction, and the bottom end of the angular supporting leg (6) is provided with a second clamping groove (64) matched with the clamping heads (71) in a sliding clamping mode along the annular direction;
wherein, rubber buffer (8) fixed connection in fixed disk (7) top surface is close to the position of angular form landing leg (6), just rubber buffer (8) are used for restricting dop (71) for second draw-in groove (64) rotate.
2. The adjustable floor level protector of claim 1, wherein: the inboard jack catch in angular form landing leg (6) top includes first jack catch (61) and second jack catch (62), second jack catch (62) set up in the below of first jack catch (61), the slotted hole of connecting pipe (2) lateral wall includes first slotted hole (21) and second slotted hole (22), first slotted hole (21) and second slotted hole (22) correspond respectively with first jack catch (61) and second jack catch (62) joint match.
3. The adjustable floor level protector of claim 1, wherein: the top surface of the fixed disc (7) is close to the position of the clamping head (71) and is respectively provided with a positioning hole (72) which is in sleeve joint with the rubber plug (8).
4. The adjustable floor level protector of claim 1, wherein: the top surface of the fixed disc (7) is positioned between two adjacent angle-shaped supporting legs (6) and is respectively provided with a through hole (73), and the through holes (73) are used for inserting and sewing bolts to fixedly connect the fixed discs (7) in a stacking mode.
5. The adjustable floor level protector of any one of claims 2-4, wherein: the number of the angular legs (6) is three.
6. The adjustable floor level protector of claim 5, wherein: the inner edge of the bottom end of the angular supporting leg (6) is provided with a bulge, and the bulge is used for supporting the bottom surface of the sensor of the liquid level switch (1).
7. The adjustable floor level protector of claim 6, wherein: the top surface of the inner edge of the first clamping jaw (61) is provided with a bulge.
8. The adjustable floor level protector of claim 7, wherein: the fixed disc (7) is made of stainless steel.
9. The adjustable floor level protector of claim 8, wherein: the connecting pipe (2), the fixing plate (3), the supporting pipe (5) and the angular supporting leg (6) are made of one of stainless steel and plastic.
10. The adjustable floor level protector of claim 9, wherein: tooth-shaped openings (65) are formed in the middle of the bottom ends of the angular support legs (6) respectively, and the tooth-shaped openings (65) are used for binding and connecting the bottom ends of the angular support legs (6) through self-locking stainless steel ribbons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558554.3A CN113175030B (en) | 2021-05-21 | 2021-05-21 | Adjustable ground liquid level protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110558554.3A CN113175030B (en) | 2021-05-21 | 2021-05-21 | Adjustable ground liquid level protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113175030A true CN113175030A (en) | 2021-07-27 |
| CN113175030B CN113175030B (en) | 2022-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110558554.3A Active CN113175030B (en) | 2021-05-21 | 2021-05-21 | Adjustable ground liquid level protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113175030B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160187179A1 (en) * | 2014-12-03 | 2016-06-30 | Texas Lfp, Llc | Sealed head construction for liquid level transducers |
| CN111076794A (en) * | 2019-12-26 | 2020-04-28 | 环弘自动化仪表科技江苏有限公司 | Quick response type liquid level detection device |
| CN211783713U (en) * | 2020-05-09 | 2020-10-27 | 无锡亿利环保科技有限公司 | Sensor circuit board support |
| CN212645854U (en) * | 2020-07-22 | 2021-03-02 | 江苏西维斯信息技术有限公司 | Anticorrosive liquid level sensor for fire control |
| CN212960612U (en) * | 2020-08-25 | 2021-04-13 | 河北旭康仪表制造有限公司 | Level gauge convenient to installation |
-
2021
- 2021-05-21 CN CN202110558554.3A patent/CN113175030B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160187179A1 (en) * | 2014-12-03 | 2016-06-30 | Texas Lfp, Llc | Sealed head construction for liquid level transducers |
| CN111076794A (en) * | 2019-12-26 | 2020-04-28 | 环弘自动化仪表科技江苏有限公司 | Quick response type liquid level detection device |
| CN211783713U (en) * | 2020-05-09 | 2020-10-27 | 无锡亿利环保科技有限公司 | Sensor circuit board support |
| CN212645854U (en) * | 2020-07-22 | 2021-03-02 | 江苏西维斯信息技术有限公司 | Anticorrosive liquid level sensor for fire control |
| CN212960612U (en) * | 2020-08-25 | 2021-04-13 | 河北旭康仪表制造有限公司 | Level gauge convenient to installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113175030B (en) | 2022-07-15 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Adjustable ground level protector Effective date of registration: 20231103 Granted publication date: 20220715 Pledgee: Qingzhou Shandong rural commercial bank Limited by Share Ltd. Pledgor: SHANDONG HUALI WATER SUPPLY EQUIPMENT Co.,Ltd. Registration number: Y2023980064154 |
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