CN114837445A - Sewage intercepting device for elevator shaft construction of floor construction building - Google Patents

Sewage intercepting device for elevator shaft construction of floor construction building Download PDF

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Publication number
CN114837445A
CN114837445A CN202210497977.3A CN202210497977A CN114837445A CN 114837445 A CN114837445 A CN 114837445A CN 202210497977 A CN202210497977 A CN 202210497977A CN 114837445 A CN114837445 A CN 114837445A
Authority
CN
China
Prior art keywords
abutting
balance
wall
elevator shaft
floor construction
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.)
Pending
Application number
CN202210497977.3A
Other languages
Chinese (zh)
Inventor
李平
王吉林
王永鑫
王国良
唐健
胡云飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Gezhouba Group Three Gorges Construction Engineering Co Ltd
Original Assignee
China Gezhouba Group Three Gorges Construction Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Gezhouba Group Three Gorges Construction Engineering Co Ltd filed Critical China Gezhouba Group Three Gorges Construction Engineering Co Ltd
Priority to CN202210497977.3A priority Critical patent/CN114837445A/en
Publication of CN114837445A publication Critical patent/CN114837445A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
    • E04G21/30—Safety or protective measures preventing damage to building parts or finishing work during construction against mechanical damage or dirt, e.g. guard covers of stairs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/014—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with curved filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/12—Driving gear incorporating electric motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

The invention discloses a sewage interception device for elevator shaft construction of a floor construction building, which comprises a mounting frame: the outer wall of mounting bracket is provided with the telescopic and supports tight subassembly, and supports the inner wall conflict of tight subassembly and elevator well, be provided with lifting unit on the mounting bracket, and be provided with balanced subassembly on the lifting unit to the balanced subassembly of drive goes up and down along the elevator well, the bottom edge of balanced subassembly is provided with the dirty filtration that intercepts of combination formula. According to the invention, the dirt intercepting device adopts the dirt intercepting structure capable of lifting and moving, and the dirt intercepting structure and the abutting component are enabled to synchronously move by combining the linkage component, so that the dirt intercepting height of the dirt intercepting structure can be freely adjusted, the dirt intercepting structure can be tightly attached to the inner wall of an elevator shaft, a gap between the dirt intercepting structure and the inner wall of the elevator shaft is prevented, further, sundries falling into the elevator shaft can be intercepted by the dirt intercepting structure, and the phenomenon of pollution to the elevator shaft is prevented.

Description

Sewage intercepting device for elevator shaft construction of floor construction building
Technical Field
The invention relates to the technical field of elevator shaft construction, in particular to a sewage interception device for elevator shaft construction of floor construction buildings.
Background
The size of the elevator shaft is determined according to the type selection of the elevator, the elevator rail and the counterweight rail are installed on the shaft wall, the elevator door is installed in the reserved door opening, an elevator machine room is arranged at the top of the shaft, and in the pouring construction process of the traditional operation floor building, pollutants such as water, cement paste, rainwater and the like for outer wall construction can flow down along the shaft side wall of the elevator shaft from top to bottom. Pollutants such as cement paste, outer wall construction water and rainwater will be attached to the well lateral wall of elevator well to pollute elevator well lateral wall, in addition, pollutants such as cement paste, outer wall construction water and rainwater also can flow into the indoor environment of floor construction building along the hole on the elevator well lateral wall, cause great influence to the interior decoration operation of floor construction building, influence floor construction building completion time limit for a project.
Chinese patent publication No.: CN207497882U discloses "cut dirty device and construction elevator well of floor construction building elevator well", including cutting dirty casing and discharge pipe, cut dirty casing and be used for installing at construction elevator well top inside wall, it has pollutant receiving oral area and pollutant discharge hole to cut dirty casing, pollutant receiving oral area be used for with the corresponding setting of construction elevator well oral area, the lateral wall of pollutant receiving oral area be used for with the laminating of construction elevator well inside wall, discharge pipe one end with the pollutant discharge hole is linked together, the discharge pipe other end is used for accesss to stairwell drainage area or elevartor shaft pit.
The dirty device is cut to current elevator well needs independent installation fixed knot respectively and cuts dirty structure when dismouting operation for constructor's work burden increases, and can't ensure to cut the inseparable type of dirty structure and elevator well inner wall, has reduced the dirty effect of cutting dirty device.
Disclosure of Invention
The invention aims to provide a dirt intercepting device for elevator shaft construction of a floor construction building, which adopts a linkage type dismounting operation mode, improves dismounting efficiency and ensures a high-efficiency dirt intercepting effect.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a floor construction building elevator well construction is with cutting dirty device, includes the mounting bracket:
the outer wall of the mounting frame is provided with a telescopic abutting component, and the abutting component abuts against the inner wall of the elevator shaft;
the mounting frame is provided with a lifting assembly, the lifting assembly is provided with a balance assembly, and the balance assembly is driven to lift along an elevator shaft;
the balance assembly and the abutting assembly synchronously extend and retract through the linkage assembly;
the bottom edge of the balance component is provided with a combined type dirt-intercepting filter structure.
As a further description of the above technical solution:
the abutting assembly comprises an abutting pipe arranged on the mounting frame, and an abutting rod is spirally connected to the inner wall of the abutting pipe.
As a further description of the above technical solution:
the end part of the abutting rod is rotatably connected with an abutting plate, an abutting head in contact with the inner wall of the elevator shaft is arranged on the abutting plate, and an inclined guide plate is arranged on the lower surface of the abutting plate.
As a further description of the above technical solution:
the lifting assembly comprises a winding frame arranged on the mounting frame, a winding shaft is rotatably connected to the winding frame, a main lifting rope is wound on the winding shaft, and the main lifting rope is connected with the balance assembly through an auxiliary lifting rope.
As a further description of the above technical solution:
the device also comprises a locking unit;
the locking unit comprises a sliding rod arranged on the winding shaft, a locking plate is sleeved on the sliding rod, locking teeth distributed in an annular mode are arranged on the locking plate, and the locking teeth are matched with locking grooves in the winding frame
As a further description of the above technical solution:
the balance assembly comprises a balance plate connected with the free end of the auxiliary lifting rope, a balance rod is movably connected onto the balance plate, and a balance head connected with the sewage intercepting and filtering structure is arranged at the end of the balance rod.
As a further description of the above technical solution:
the linkage assembly comprises a telescopic rod arranged at the top of the balance head, a fixed pipe is sleeved on the telescopic rod, and the fixed pipe is connected with the bottom of the abutting plate.
As a further description of the above technical solution:
the sewage intercepting and filtering structure comprises a second filter screen arranged at the bottom of the balance head, a first filter screen is arranged on the inner wall of the second filter screen, and elastic ropes are arranged at the end part of the first filter screen.
As a further description of the above technical solution:
the sewage intercepting and filtering structure further comprises a liquid collecting bag arranged at the bottom of the balance head, the liquid collecting bag is located below the second filter screen, and a sewage draining outlet is formed in the bottom of the liquid collecting bag.
As a further description of the above technical solution:
the bottom of the balance plate is provided with a plurality of adsorption magnets.
In the technical scheme, the dirt intercepting device for the construction of the elevator shaft of the floor construction building, provided by the invention, has the following beneficial effects:
this cut dirty device adopts the dirty structure of cutting of liftable removal to combine the linkage subassembly to make it and support tight subassembly synchronous motion, can enough ensure to cut dirty structure can be free adjust it and cut dirty height, also can ensure to cut dirty structure and can closely laminate with the inner wall of elevator well, prevent to cut and produce the gap between dirty structure and the elevator well inner wall, and then make the debris that fall into in the elevator well can both be intercepted by cutting dirty structure, prevent to cause the pollution phenomenon to the elevator well.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic side view of a dirt intercepting device for elevator shaft construction in a floor construction building according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a fastening assembly according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a lifting assembly according to an embodiment of the present invention;
FIG. 4 is a schematic side view of a locking assembly according to an embodiment of the present invention;
FIG. 5 is a schematic side view of a joint between a linkage assembly and a balance assembly according to an embodiment of the present invention;
fig. 6 is a schematic side view of a first filter screen according to an embodiment of the present invention.
Description of reference numerals:
1. a propping component; 11. abutting the pipe; 12. a tightening rod; 13. a resisting plate; 14. abutting the head; 15. a baffle; 2. a lifting assembly; 21. a spool; 22. a locking unit; 221. a slide bar; 222. a lock plate; 223. locking teeth; 23. a main lifting rope; 24. an auxiliary lifting rope; 25. a bobbin; 251. a locking groove; 3. a linkage assembly; 31. a fixed tube; 32. a telescopic rod; 4. a balancing component; 41. a balance plate; 42. a balancing pole; 43. a balancing head; 5. a first filter screen; 51. an elastic cord; 6. a second filter screen; 7. adsorbing a magnet; 8. a liquid collecting bag; 9. a sewage draining outlet; 10. and (7) mounting frames.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-6, a dirt intercepting device for the construction of elevator shafts of floor construction buildings comprises a mounting frame 10:
the outer wall of the mounting frame 10 is provided with telescopic abutting components 1, the abutting components 1 abut against the inner wall of the elevator shaft, the number of the abutting components 1 is four, and the four abutting components 1 are distributed in a cross structure and respectively contact and abut against the four inner walls of the elevator shaft;
the mounting frame 10 is provided with a lifting component 2, the lifting component 2 is provided with a balance component 4, and the balance component 4 is driven to lift along an elevator shaft;
the balance component 4 and the abutting component 1 synchronously extend and retract through the linkage component 3, so that a dirt intercepting structure on the balance component 4 can be in close contact with the inner wall of the elevator shaft along with the extension and retraction of the abutting component 1;
the bottom edge of the balance component 4 is provided with a combined dirt-intercepting filter structure.
In the embodiment, the mounting frame 10 is moved into the elevator shaft, the four abutting assemblies 1 are adjusted to face the four inner walls of the elevator shaft, the abutting assemblies 1 are rotated to abut against the inner walls of the elevator shaft, the position of the mounting rack 10 can be positioned and fixed, and meanwhile, the abutting component 1 can stretch and contract, and at the same time, by virtue of the action of the linkage component 3, can drive the balance component 4 to stretch and retract, so that the dirt intercepting structure on the balance component 4 can be unfolded from a gathering state, and the edge of the dirt intercepting structure is tightly contacted with the inner wall of the elevator shaft to prevent a gap from being generated between the two, thereby ensuring that sundries falling into the elevator shaft can be blocked and intercepted by the dirt intercepting structure, preventing impurities from falling to the bottom of the elevator shaft and accumulating and polluting, simultaneously be convenient for carry out unified and convenient dismouting operation to cutting dirty device, reduced construction operation burden.
The abutting component 1 comprises abutting pipes 11 arranged on a mounting frame 10, the inner walls of the abutting pipes 11 are spirally connected with abutting rods 12, the end parts of the abutting rods 12 are rotatably connected with abutting plates 13, and abutting heads 14 in contact with the inner wall of an elevator shaft are arranged on the abutting plates 13, when the levelness of the mounting frame 10 is adjusted, and the four abutting pipes 11 are all towards the four inner walls of the elevator shaft, the abutting rods 12 are rotated to move out of the abutting pipes 11, so that the abutting plates 13 are driven to move towards the inner wall of the elevator shaft until contacting, and the abutting rods 12 are continuously rotated after contacting, the frictional resistance between the abutting heads 14 and the inner wall of the elevator shaft is increased, the stability of the position of the abutting component 1 is improved, the phenomenon of random shaking is prevented, the lower surfaces of the abutting plates 13 are provided with inclined guide plates 15, the flow guide direction of the guide plates 15 faces the center position of the sewage intercepting structure, can play the guide effect with the liquid that elevator well inner wall flows for liquid spot can be accurate fall into in cutting dirty structure.
Lifting unit 2 is including setting up the bobbin 25 on mounting bracket 10, it is connected with spool 21 to rotate on bobbin 25, and it has main lifting rope 23 to wind on spool 21, and main lifting rope 23 is connected with balanced subassembly 4 through vice lifting rope 24, the tie point of vice lifting rope 24 and balanced subassembly 4 is three at least, ensure the stationarity that balanced subassembly 4 goes up and down to move, through the rotation operation of spool 21, make it under main lifting rope 23 and vice lifting rope 24's effect, drive balanced subassembly 4 goes up and down in the elevator well, thereby adjust the mounting height position of intercepting dirty structure and handle.
The winding mechanism further comprises a locking unit 22, the locking unit 22 comprises a sliding rod 221 arranged on the winding shaft 21, a locking plate 222 is sleeved on the sliding rod 221, locking teeth 223 distributed in an annular mode are arranged on the locking plate 222, the locking teeth 223 are matched with locking grooves 251 on the winding frame 25, when the height of the dirt intercepting structure is adjusted by rotating the winding shaft 21, the locking plate 222 slides on the sliding rod 221, the locking teeth 223 are separated from the locking grooves 251 on the winding frame 25, the winding shaft 21 can be rotated, on the contrary, when the locking plate 222 slides on the sliding rod 221, the locking teeth 223 are embedded into the locking grooves 251, and the locking fixing effect can be achieved on the position of the winding shaft 21.
The balancing component 4 comprises a balancing plate 41 connected with the free end of the auxiliary lifting rope 24, a balancing rod 42 is movably connected on the balancing plate 41, and the end of the balancing pole 42 is provided with a balancing head 43 connected with the sewage intercepting filter structure, the number of the balancing components 4 is four, and respectively connects the four abutting components 1 with the four balancing heads 43, the linkage component 3 comprises an expansion link 32 arranged at the top of the balancing heads 43, the expansion link 32 is sleeved with a fixed pipe 31, and the fixed pipe 31 is connected with the bottom of the abutting plate 13, so that the transverse driving force on the abutting assembly 1 can act on the balance assembly 4 to drive the abutting assembly 1 and the balance assembly 4 to synchronously move in a telescopic way, thereby realizing convenient folding and unfolding operation of the sewage intercepting structure, simultaneously, the telescopic rod 32 can move in the fixed pipe 31 in a telescopic way, so as to make up the height difference caused by the lifting of the balance assembly 4 and ensure the stable lifting and transverse movement of the balance assembly 4.
Cut dirty filtration including setting up the second filter screen 6 in balanced head 43 bottom, the inner wall of second filter screen 6 is provided with first filter screen 5, and the tip of first filter screen 5 all is provided with stretch cord 51, the filtration pore of first filter screen 5 is greater than the filtration pore of second filter screen 6, make first filter screen 5 can play the filter action to great debris, and utilize stretch cord 51's elastic reaction, can drop on first filter screen 5 to heavier debris weight down, reduce the impact influence that first filter screen 5 received, thereby avoid first filter screen 5 to take place to warp cracked phenomenon even.
The pollutant-intercepting filtering structure further comprises a liquid-collecting bag 8 arranged at the bottom of the balance head 43, the liquid-collecting bag 8 is located below the second filter screen 6, a sewage discharge outlet 9 is formed in the bottom of the liquid-collecting bag 8, the liquid-collecting bag 8 is used for collecting liquid stains, and the collected liquid stains are discharged and processed through the sewage discharge outlet 9.
The bottom of the balance plate 41 is provided with a plurality of adsorption magnets 7 for adsorbing falling metal impurities, so that old metals can be effectively adsorbed, and subsequent recycling is facilitated.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. The utility model provides a floor construction building elevator well construction is with cutting dirty device, includes mounting bracket (10), its characterized in that:
the outer wall of the mounting rack (10) is provided with a telescopic abutting component (1), and the abutting component (1) abuts against the inner wall of an elevator shaft;
the mounting frame (10) is provided with a lifting assembly (2), the lifting assembly (2) is provided with a balance assembly (4), and the balance assembly (4) is driven to lift along an elevator shaft;
the balance component (4) and the abutting component (1) synchronously extend and retract through the linkage component (3);
the bottom edge of the balance component (4) is provided with a combined type dirt-intercepting filtering structure.
2. The floor construction building elevator well construction of claim 1 is with cutting dirty device, characterized in that: the abutting component (1) comprises an abutting pipe (11) arranged on the mounting rack (10), and an abutting rod (12) is spirally connected to the inner wall of the abutting pipe (11).
3. The floor construction building elevator well construction of claim 2 is with cutting dirty device, characterized in that: the end part of the abutting rod (12) is rotatably connected with an abutting plate (13), an abutting head (14) which is in contact with the inner wall of the elevator shaft is arranged on the abutting plate (13), and an inclined guide plate (15) is arranged on the lower surface of the abutting plate (13).
4. The floor construction building elevator well construction of claim 1 is with cutting dirty device, characterized in that: lifting unit (2) are including setting up reel (25) on mounting bracket (10), rotate on reel (25) and be connected with spool (21), and the winding has main lifting rope (23) around connecing on spool (21), and main lifting rope (23) are connected with balanced subassembly (4) through vice lifting rope (24).
5. The floor construction building elevator well construction of claim 4 is with cutting dirty device, its characterized in that: further comprising a locking unit (22);
the locking unit (22) comprises a sliding rod (221) arranged on the winding shaft (21), a locking plate (222) is sleeved on the sliding rod (221), locking teeth (223) distributed in an annular mode are arranged on the locking plate (222), and the locking teeth (223) are matched with locking grooves (251) in the winding frame (25).
6. The floor construction building elevator well construction of claim 1 is with cutting dirty device, characterized in that: the balance assembly (4) comprises a balance plate (41) connected with the free end of the auxiliary lifting rope (24), a balance rod (42) is movably connected onto the balance plate (41), and a balance head (43) connected with the sewage intercepting and filtering structure is arranged at the end part of the balance rod (42).
7. The floor construction building elevator well construction of claim 1 is with cutting dirty device, characterized in that: linkage subassembly (3) are equipped with fixed pipe (31) including setting up telescopic link (32) at balanced head (43) top on telescopic link (32), and fixed pipe (31) are connected with the bottom of supporting tight board (13).
8. The dirt intercepting device for the construction of the elevator shaft of the floor construction building according to claim 6, is characterized in that: the sewage intercepting and filtering structure comprises a second filter screen (6) arranged at the bottom of the balance head (43), a first filter screen (5) is arranged on the inner wall of the second filter screen (6), and elastic ropes (51) are arranged at the end parts of the first filter screen (5).
9. The floor construction building elevator well construction of claim 6 is with cutting dirty device, characterized in that: the sewage intercepting and filtering structure further comprises a liquid collecting bag (8) arranged at the bottom of the balance head (43), the liquid collecting bag (8) is located below the second filter screen (6), and a sewage draining outlet (9) is formed in the bottom of the liquid collecting bag (8).
10. The floor construction building elevator well construction of claim 6 is with cutting dirty device, characterized in that: the bottom of the balance plate (41) is provided with a plurality of adsorption magnets (7).
CN202210497977.3A 2022-05-09 2022-05-09 Sewage intercepting device for elevator shaft construction of floor construction building Pending CN114837445A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210497977.3A CN114837445A (en) 2022-05-09 2022-05-09 Sewage intercepting device for elevator shaft construction of floor construction building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210497977.3A CN114837445A (en) 2022-05-09 2022-05-09 Sewage intercepting device for elevator shaft construction of floor construction building

Publications (1)

Publication Number Publication Date
CN114837445A true CN114837445A (en) 2022-08-02

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207497882U (en) * 2017-10-18 2018-06-15 增城市碧桂园物业发展有限公司 The pollution cutting device of floor construction building elevator shaft and construction elevator hoistway
CN210142010U (en) * 2019-06-27 2020-03-13 董加力 Groundwater sampling device for hydrogeology
CN213539778U (en) * 2020-08-24 2021-06-25 李海环 Sewage intercepting device for elevator shaft of floor construction building
CN214246020U (en) * 2020-12-11 2021-09-21 中冶南方城市建设工程技术有限公司 Take dirty type inlet for stom water of cutting of filter screen
CN215640294U (en) * 2021-04-24 2022-01-25 江西核工业建设有限公司 Pit well head is administered and is used waste water detection reflux unit
KR20220041034A (en) * 2021-01-28 2022-03-31 (주)지앤에스 system for safety

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207497882U (en) * 2017-10-18 2018-06-15 增城市碧桂园物业发展有限公司 The pollution cutting device of floor construction building elevator shaft and construction elevator hoistway
CN210142010U (en) * 2019-06-27 2020-03-13 董加力 Groundwater sampling device for hydrogeology
CN213539778U (en) * 2020-08-24 2021-06-25 李海环 Sewage intercepting device for elevator shaft of floor construction building
CN214246020U (en) * 2020-12-11 2021-09-21 中冶南方城市建设工程技术有限公司 Take dirty type inlet for stom water of cutting of filter screen
KR20220041034A (en) * 2021-01-28 2022-03-31 (주)지앤에스 system for safety
CN215640294U (en) * 2021-04-24 2022-01-25 江西核工业建设有限公司 Pit well head is administered and is used waste water detection reflux unit

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