CN112873577A - A cutting blocking device for ALC panel - Google Patents

A cutting blocking device for ALC panel Download PDF

Info

Publication number
CN112873577A
CN112873577A CN202110151476.5A CN202110151476A CN112873577A CN 112873577 A CN112873577 A CN 112873577A CN 202110151476 A CN202110151476 A CN 202110151476A CN 112873577 A CN112873577 A CN 112873577A
Authority
CN
China
Prior art keywords
casing
seted
cutting
work box
plate
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
CN202110151476.5A
Other languages
Chinese (zh)
Inventor
王国彬
陈泽秀
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.)
Hunan Yunlong New Material Technology Co ltd
Original Assignee
Hunan Yunlong New Material Technology 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 Hunan Yunlong New Material Technology Co ltd filed Critical Hunan Yunlong New Material Technology Co ltd
Priority to CN202110151476.5A priority Critical patent/CN112873577A/en
Publication of CN112873577A publication Critical patent/CN112873577A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/02Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

The invention discloses a cutting and partitioning device for ALC (automatic level control) plates, which comprises a shell, wherein a working box is slidably arranged in the shell, an opening and closing door is hinged to the outer part of the shell, a control panel is arranged on the front surface of the opening and closing door, and a motor is arranged in the working box. The movable plate is arranged, so that the cutter can be retracted into the shell when the device is not used, the cutter is prevented from being exposed outside to scratch workers, and the device is convenient for a user to carry.

Description

A cutting blocking device for ALC panel
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a cutting and partitioning device for ALC (autoclaved lightweight concrete) plates.
Background
ALC is a kind of autoclaved lightweight concrete, it is a kind of high-performance autoclaved aerated concrete, ALC board is with fly ash (or silica sand), cement, lime, etc. as the main raw materials, the porous concrete shaping board (including the reinforcement of steel reinforcement processed) that is cured by high-pressure steam, ALC board can be made into wall material, can be made into roof boarding, it is a new building materials with superior performance, this material not only has good heat insulation performance, but also has better heat insulation performance, when adopting the rational thickness, not only can be used in the cold area with high heat insulation requirement, also can be used in summer hot winter cold area or summer hot winter warm area with high heat insulation requirement, meet the requirement of energy-conserving standard, ALC board has scientific and reasonable node design and installation method, it guarantees the stability, security of wall outside the plane on the basis of node strength, at the same time, it passes through the wall board has the rotatability in the plane, the wall body has follow-up property adapting to larger horizontal displacement in a plane, so that the building maintenance structure can not be greatly damaged under the action of strong wind or earthquake force, and has stronger earthquake-resistant performance; the ALC board has a complete application matching system, is provided with a special connecting piece, a pointing agent, a repairing powder, an interface agent and the like, and needs to be cut by a cutting device according to needs when the ALC board is used.
However, the cutting and partitioning devices for the ALC sheet materials used at present still have the defects that:
1. some cutting piecemeal devices that are used for ALC panel that use now do not set up protector to the cutter when the device does not use, because the staff of device service environment is more, the cutter exposes and causes personnel's injury externally easily, and the cutter exposes outside inconvenient user to accomodate it and carry.
2. Some cutting blocking devices for ALC plates used at present can not radiate heat to the cutter when in use, the cutter is easy to reduce sharpness due to temperature rise after long-time work, the service life of the cutter is shortened, and the use cost of the device is increased.
Disclosure of Invention
The invention aims to provide a cutting and partitioning device for ALC (automatic level gauge) plates, which solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a cutting piecemeal device for ALC panel, includes the casing, the inside slidable mounting of casing has the work box, the outside articulated switch door and the switch door that have of casing openly are provided with control panel, the work box internally mounted has the motor, the motor output is connected with the cutter through the transmission shaft transmission, induced draft fan is installed at the work box top, filtering component is installed at the casing top, install the gag lever post between the shells inner wall, the inside screw rod that is provided with of casing, the work box internally mounted has the baffle, protection component is installed on the casing right side, control panel passes through wire and motor and induced draft fan electric connection.
Preferably, the filtering component comprises a first fixing plate, the first fixing plate is installed at the top of the shell, an inserted bar is installed at the inside sliding of the first fixing plate, a limiting plate is installed on the right side of the first fixing plate, the other end of the first spring and the right side of the inserted bar are installed on the left side of the limiting plate, a first dust screen is installed inside the working box, a second dust screen is connected to the top of the shell through the inserted bar in a clamped mode, and a groove matched with the inserted bar is formed in the second dust screen.
Preferably, the protection component includes the regulating box, the regulating box is installed on the right side of casing, the inside swing joint of regulating box has the movable plate, the arm-tie is installed on the right side of movable plate, the second fixed plate is installed at the top of movable plate, the second spring is installed on the right side of second fixed plate, the inside threaded connection of casing has stop screw, the thread groove with the stop screw adaptation is seted up to the inside of casing.
Preferably, a sliding groove matched with the inserted link is formed in the first fixing plate.
Preferably, the inside of casing is seted up with the guide way of work box adaptation, the inside of casing is seted up with the movable hole of cutter adaptation, the vent has been seted up to the inside of casing, the handrail is installed on the right side of casing, the universal wheel is installed to the bottom of casing.
Preferably, the inside of the working box is provided with a hole matched with the limiting rod and the screw, the inside of the working box is provided with an air inlet, the inside of the working box is provided with a groove matched with the cutter, and the inside of the partition board is provided with a hole matched with the output end of the motor.
Preferably, a clamping rod is installed at the top of the shell, and a groove matched with the clamping rod is formed in the second dust screen.
Preferably, a fixing rod is installed between two sides of the inner wall of the adjusting box, and a hole matched with the fixing rod is formed in the second fixing plate.
Compared with the prior art, the invention provides a cutting and blocking device for ALC plates, which has the following beneficial effects:
1. the movable plate is arranged, so that the cutter can be retracted into the shell when the device is not used, the cutter is prevented from being exposed outside to scratch workers, a user can conveniently carry the device, and when the device works, the movable plate can be retracted by arranging the limiting screw, so that the cutter can be moved out, and the cutting work of a panel can be normally carried out.
2. According to the invention, the air suction fan is arranged, so that outside air can be sucked into the shell to dissipate heat of the cutter, the cutter is prevented from being damaged due to temperature rise caused by long-time work, dust outside the cutter can be blown off by the sucked air, the use effect of the cutter is improved, the second dustproof net is arranged, so that the outside dust can be prevented from entering through the ventilation opening of the shell to influence the device, the second dustproof net is convenient to assemble and disassemble by arranging the inserting rod, and a user can clean the second dustproof net conveniently so as to avoid influencing the ventilation and filtering effects of the second dustproof net.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
fig. 3 is an enlarged view of the invention at a in fig. 2.
In the figure: 1. a housing; 2. a work box; 3. a motor; 4. a cutter; 5. an air suction fan; 6. a filter assembly; 601. a first fixing plate; 602. inserting a rod; 603. a limiting plate; 604. a first spring; 605. a first dust screen; 606. a second dust screen; 7. a limiting rod; 8. a screw; 9. a partition plate; 10. a guard assembly; 1001. an adjusting box; 1002. moving the plate; 1003. a second fixing plate; 1004. a second spring; 1005. a limit screw; 11. a control panel.
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, an embodiment of the present invention is shown: the utility model provides a cutting piecemeal device for ALC panel, which comprises a housin 1, 1 inside slidable mounting of casing has work box 2, 1 outside articulated switch door and the switch door of casing openly are provided with control panel 11, 2 internally mounted of work box have motor 3, 3 outputs of motor are connected with cutter 4 through the transmission of transmission shaft, induced draft fan 5 is installed at 2 tops of work box, filter assembly 6 is installed at 1 top of casing, install gag lever post 7 between 1 inner wall of casing, 1 inside screw rod 8 that is provided with of casing, 2 internally mounted of work box have baffle 9, protection component 10 is installed on 1 right side of casing, control panel 11 passes through wire and motor 3 and 5 electric connection of induced draft fan.
In this implementation, filter assembly 6 includes first fixed plate 601, first fixed plate 601 is installed at the top of casing 1, the inside slidable mounting of first fixed plate 601 has inserted bar 602, limiting plate 603 is installed on the right side of first fixed plate 601, the left side of limiting plate 603 is installed first spring 604 and the other end of first spring 604 and the right side installation of inserted bar 602, the internally mounted of work box 2 has first dust screen 605, the top of casing 1 has second dust screen 606 through inserted bar 602 joint, the inside of second dust screen 606 is seted up with the groove of inserted bar 602 adaptation, prevent that external dust from getting into inside the device, in order to avoid the device to damage.
In this implementation, protection component 10 includes regulating box 1001, regulating box 1001 is installed on the right side of casing 1, the inside swing joint of regulating box 1001 has movable plate 1002, the arm-tie is installed on the right side of movable plate 1002, the second is installed at the top of movable plate 1002, second spring 1004 is installed on the right side of second, the inside threaded connection of casing 1 has stop screw 1005, the thread groove with stop screw 1005 adaptation is seted up to the inside of casing 1, play the guard action to cutter 4, prevent that cutter 4 from exposing the staff on external injury periphery.
In this embodiment, a sliding groove adapted to the insertion rod 602 is formed in the first fixing plate 601, so that the insertion rod 602 can slide in the first fixing plate 601 to limit the second dust screen 606.
In this implementation, the guide way with 2 adaptations of work box is seted up to the inside of casing 1, the movable hole with 4 adaptations of cutter is seted up to the inside of casing 1, the vent has been seted up to the inside of casing 1, the handrail is installed on the right side of casing 1, the universal wheel is installed to the bottom of casing 1, make cutter 4 can pack up, it can dispel the heat and blow off the outside dust of cutter 4 to set up the vent, improve cutter 4's result of use, handrail and universal wheel person of facilitating the use this device.
In this implementation, the hole with gag lever post 7 and 8 adaptations of screw rod is seted up to the inside of work box 2, and the air intake has been seted up to the inside of work box 2, and the groove with cutter 4 adaptations is seted up to the inside of work box 2, and the hole with the output adaptation of motor 3 is seted up to the inside of baffle 9, makes cutter 4 can normally work and dispel the heat to cutter 4.
In this implementation, the kelly is installed at the top of casing 1, and the inside of second dust screen 606 is seted up with the groove of kelly adaptation, is convenient for spacing second dust screen 606 to the device damage is caused in the entry of vent from casing 1 to external dust.
In this implementation, install the dead lever between the regulating box 1001 inner wall both sides, the hole with the dead lever adaptation is seted up to the inside of second fixed plate 1003, is convenient for spacing movable plate 1002 and second fixed plate 1003.
The working principle is as follows: when the device is needed to be used, the pulling plate is pulled rightwards, the pulling plate drives the moving plate 1002 to move rightwards, the moving plate 1002 drives the second fixing plate 1003 to slide outside the fixing rod, the second fixing plate 1003 compresses the second spring 1004 rightwards, when the left end of movable plate 1002 is located the right side of thread groove in casing 1, clockwise rotation stop screw 1005, make stop screw 1005 and the thread groove joint in the casing 1, loosen the arm-tie, the left end of movable plate 1002 offsets with the right side of stop screw 1005 this moment, clockwise rotation screw rod 8, work box 2 drives cutter 4 and moves down in the outside of gag lever post 7 and screw rod 8, starter motor 3, motor 3 drives cutter 4 and rotates, start induced draft fan 5, the panel that will cut is put in the below of device, pass through handrail and universal wheel mobile device this moment, cutter 4 can be the cutting of cutter, induced draft fan 5 can dispel the heat and blow off the dust outside of cutter 4 to cutter 4.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (8)

1. A cutting and partitioning device for ALC (automatic level gauge) plates, which comprises a shell (1), and is characterized in that: casing (1) inside slidable mounting has work box (2), casing (1) outside articulated have switch door and switch door openly be provided with control panel (11), work box (2) internally mounted has motor (3), motor (3) output is connected with cutter (4) through the transmission shaft transmission, induced draft fan (5) are installed at work box (2) top, filtering component (6) are installed at casing (1) top, install gag lever post (7) between casing (1) inner wall, casing (1) inside is provided with screw rod (8), work box (2) internally mounted has baffle (9), casing (1) right side is installed protection component (10), control panel (11) are through wire and motor (3) and induced draft fan (5) electric connection.
2. The cutting and partitioning apparatus for ALC sheet material as claimed in claim 1, wherein: filter component (6) includes first fixed plate (601), first fixed plate (601) are installed at the top of casing (1), the inside slidable mounting of first fixed plate (601) has inserted bar (602), limiting plate (603) are installed on the right side of first fixed plate (601), the right side installation of the other end of first spring (604) and inserted bar (602) is installed in the left side of limiting plate (603), the internally mounted of work box (2) has first dust screen (605), there is second dust screen (606) at the top of casing (1) through inserted bar (602) joint, the groove with inserted bar (602) adaptation is seted up to the inside of second dust screen (606).
3. The cutting and partitioning apparatus for ALC sheet material as claimed in claim 1, wherein: the protection component (10) comprises an adjusting box (1001), the adjusting box (1001) is installed on the right side of the casing (1), a moving plate (1002) is movably connected inside the adjusting box (1001), a pulling plate is installed on the right side of the moving plate (1002), a second fixing plate (1003) is installed at the top of the moving plate (1002), a second spring (1004) is installed on the right side of the second fixing plate (1003), a limiting screw (1005) is connected to the inner thread of the casing (1), and a thread groove matched with the limiting screw (1005) is formed in the casing (1).
4. The cutting and partitioning apparatus for ALC sheet material as claimed in claim 2, wherein: a sliding groove matched with the inserting rod (602) is formed in the first fixing plate (601).
5. The cutting and partitioning apparatus for ALC sheet material as claimed in claim 1, wherein: the guide way with work box (2) adaptation is seted up to the inside of casing (1), the movable hole with cutter (4) adaptation is seted up to the inside of casing (1), the vent has been seted up to the inside of casing (1), the handrail is installed on the right side of casing (1), the universal wheel is installed to the bottom of casing (1).
6. The cutting and partitioning apparatus for ALC sheet material as claimed in claim 1, wherein: the hole with gag lever post (7) and screw rod (8) adaptation is seted up to the inside of work box (2), the air intake has been seted up to the inside of work box (2), the groove with cutter (4) adaptation is seted up to the inside of work box (2), the hole with motor (3) output adaptation is seted up to the inside of baffle (9).
7. The cutting and partitioning apparatus for ALC sheet material as claimed in claim 2, wherein: the top of casing (1) is installed the kelly, the inside of second dust screen (606) is seted up with the groove of kelly adaptation.
8. A cutting and blocking device for ALC sheet material as claimed in claim 3, wherein: and a fixing rod is arranged between two sides of the inner wall of the adjusting box (1001), and a hole matched with the fixing rod is formed in the second fixing plate (1003).
CN202110151476.5A 2021-02-03 2021-02-03 A cutting blocking device for ALC panel Pending CN112873577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110151476.5A CN112873577A (en) 2021-02-03 2021-02-03 A cutting blocking device for ALC panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110151476.5A CN112873577A (en) 2021-02-03 2021-02-03 A cutting blocking device for ALC panel

Publications (1)

Publication Number Publication Date
CN112873577A true CN112873577A (en) 2021-06-01

Family

ID=76057100

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110151476.5A Pending CN112873577A (en) 2021-02-03 2021-02-03 A cutting blocking device for ALC panel

Country Status (1)

Country Link
CN (1) CN112873577A (en)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206422310U (en) * 2017-02-15 2017-08-18 东莞市爱迪灯饰有限公司 A kind of safe USB charging sockets of push-and-pull spring-piece type
CN207051532U (en) * 2017-08-28 2018-02-27 安徽华明电气设备有限公司 The fast interface structure of high voltage cable malfunction monitoring optical fiber cable and main frame
CN207509343U (en) * 2017-09-11 2018-06-19 巴彦淖尔市蒙强科技节能有限公司 A kind of plate cutting dust guard
CN207954339U (en) * 2018-02-28 2018-10-12 浙江铭友环境工程有限公司 A kind of makita 4100NH for building
CN108867300A (en) * 2018-08-16 2018-11-23 王爱军 A kind of highway pavement cutter device
CN109110373A (en) * 2018-09-13 2019-01-01 湖州天和机械有限公司 A kind of unpowered roller for logistics
CN208408794U (en) * 2018-04-28 2019-01-22 南通伊阳精密机械有限公司 A kind of wire cutting machine water tank pump control unit
CN210173680U (en) * 2019-06-10 2020-03-24 遵义市富瑞机械有限公司 Cutting device is used in processing of machinery dysmorphism piece convenient to it is spacing
CN211429292U (en) * 2020-04-10 2020-09-04 深圳市汉荣达电子有限公司 FM and aviation wave band digital radio
CN111844470A (en) * 2019-04-28 2020-10-30 徐州市贾汪区金牛彩砖有限公司 Cutting equipment for building bricks
CN212096981U (en) * 2020-04-14 2020-12-08 洪汉泽 Interior decoration building material cutting is with hand-held type cutting machine
CN212311426U (en) * 2020-04-14 2021-01-08 周代云 Cutting device is used in warm construction of leading to of building
CN212445843U (en) * 2020-05-29 2021-02-02 蔡淑贤 Building materials cutting device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN206422310U (en) * 2017-02-15 2017-08-18 东莞市爱迪灯饰有限公司 A kind of safe USB charging sockets of push-and-pull spring-piece type
CN207051532U (en) * 2017-08-28 2018-02-27 安徽华明电气设备有限公司 The fast interface structure of high voltage cable malfunction monitoring optical fiber cable and main frame
CN207509343U (en) * 2017-09-11 2018-06-19 巴彦淖尔市蒙强科技节能有限公司 A kind of plate cutting dust guard
CN207954339U (en) * 2018-02-28 2018-10-12 浙江铭友环境工程有限公司 A kind of makita 4100NH for building
CN208408794U (en) * 2018-04-28 2019-01-22 南通伊阳精密机械有限公司 A kind of wire cutting machine water tank pump control unit
CN108867300A (en) * 2018-08-16 2018-11-23 王爱军 A kind of highway pavement cutter device
CN109110373A (en) * 2018-09-13 2019-01-01 湖州天和机械有限公司 A kind of unpowered roller for logistics
CN111844470A (en) * 2019-04-28 2020-10-30 徐州市贾汪区金牛彩砖有限公司 Cutting equipment for building bricks
CN210173680U (en) * 2019-06-10 2020-03-24 遵义市富瑞机械有限公司 Cutting device is used in processing of machinery dysmorphism piece convenient to it is spacing
CN211429292U (en) * 2020-04-10 2020-09-04 深圳市汉荣达电子有限公司 FM and aviation wave band digital radio
CN212096981U (en) * 2020-04-14 2020-12-08 洪汉泽 Interior decoration building material cutting is with hand-held type cutting machine
CN212311426U (en) * 2020-04-14 2021-01-08 周代云 Cutting device is used in warm construction of leading to of building
CN212445843U (en) * 2020-05-29 2021-02-02 蔡淑贤 Building materials cutting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
胡俊 译: "《时尚视觉》", 31 May 2020, 中国青年出版社 *

Similar Documents

Publication Publication Date Title
CN203377081U (en) Novel transformer room noise-proof ventilation system
CN210694635U (en) Automatic ventilation unit of electrical control cabinet
CN112873577A (en) A cutting blocking device for ALC panel
CN108963927A (en) A kind of box-like bus duct of smart group
CN216057715U (en) Electric appliance control box convenient to overhaul for slaughterhouse
CN213016904U (en) Speed-regulating fan
CN210807430U (en) Building security protection supervisory equipment convenient to heat dissipation
CN115297654A (en) Protector for electric controller
CN111779251B (en) Electromechanical mounting device
CN213899344U (en) Noise reduction base for exhaust fan
CN213270404U (en) Ventilation device for factory building
CN205536354U (en) Novel power ventilator
CN216064402U (en) Environment-friendly dust removal device for maintaining air conditioner outdoor unit
CN210267632U (en) Curtain wall ventilation device
CN214501559U (en) Energy-conserving ventilation unit for architectural design
CN218828664U (en) Novel load monitoring operation platform for power distribution cabinet
CN219868287U (en) Novel residential building ventilator
CN112123065A (en) A high-efficient clearance mar device for door and window glass
CN218888623U (en) Building construction safety monitoring system
CN212899126U (en) Outer cover of making an uproar falls in environment-friendly device that induced drafts
CN220254826U (en) Multifunctional monitoring box for security monitoring
CN212508392U (en) Air inlet window for tunnel ventilation
CN217274791U (en) Building engineering heating ventilation air conditioner fixing device
CN215369577U (en) Ventilation and noise elimination shutter
CN215421279U (en) Environment-friendly electrical cabinet with automatic water quality cleaning and processing functions for desulfurizing tower

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210601