CN110671022B - Temporary installation tool door for blocking door opening of room - Google Patents
Temporary installation tool door for blocking door opening of room Download PDFInfo
- Publication number
- CN110671022B CN110671022B CN201911072254.3A CN201911072254A CN110671022B CN 110671022 B CN110671022 B CN 110671022B CN 201911072254 A CN201911072254 A CN 201911072254A CN 110671022 B CN110671022 B CN 110671022B
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- Prior art keywords
- door
- bolt
- rotating shaft
- tool
- plate
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- 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.)
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 title claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009435 building construction Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/02—Doors, windows, or like closures for special purposes; Border constructions therefor for out-buildings or cellars; Other simple closures not designed to be close-fitting
- E06B5/025—Provisional closures, e.g. temporary security doors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B2003/7049—Specific panel characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The invention relates to the technical field of building construction, in particular to a temporary installation tool door for blocking a room door opening, which is complex in the existing door opening blocking mode, inconvenient to install and remove, and comprises a front door plate and a rear door plate, wherein a door belt is arranged on the front door plate and is fixed with the rear door plate through the door belt, a space capable of accommodating a clamping structure is formed in the front door plate and the rear door plate, the clamping structure comprises a door bolt, a rotating shaft and a door lock, the middle part of the rotating shaft is provided with a hole and is provided with the door lock at the position of the hole, two ends of the rotating shaft are respectively connected with the door bolt in a rotating mode through the rotating shaft and extend and retract in the inner space of the tool door along with the rotation of the door lock, one end part of each door bolt far away from the rotating shaft is positioned outside the tool door body in a locking state of the door lock and is positioned in the tool door body in an unlocking state of the door lock, so that the rapid installation and removal of the tool door can be realized, and the technical field of the building construction tool door has good development prospect.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a temporary installation tool door for blocking a door opening of a room.
Background
In the prior engineering construction practice, a room door or a door and a wall surface opening with door opening property are required to be blocked for use due to construction sequence or working procedure requirements, working procedures of the room are connected and carried out in a temporary sealing mode, generally square timber and plywood are adopted, the door is manufactured into a simple door for temporary nailing and mortising in site processing, the manufacturing, mounting and dismantling processes are time-consuming and consumable, the door cannot be recycled and inconvenient to open, more construction wastes are generated during dismantling, and the inspection work during construction is inconvenient, the prior working state obviously cannot meet the requirement of high-efficiency construction progress, and therefore, the door plate structure can be quickly mounted and removed, the engineering progress is forcefully promoted, and the engineering management level is improved.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a temporary installation tool door for blocking a door opening of a room, and solves the problems that the existing door opening blocking mode is complex and inconvenient to install and remove.
The temporary mounting tool door for blocking the door opening of the room comprises a front door plate and a rear door plate, wherein a plurality of door belts are additionally arranged on the front door plate and fixed with the rear door plate through corresponding holes in the door belts, the door belts are uniformly distributed on the door plates of the tool door so as to achieve good fixing, cutting edges of the lower edges of the front door plate and the rear door plate are bent, punched so as to be mounted and fixed, a space capable of containing a clamping structure is formed in the front door plate and the rear door plate, the clamping structure comprises a door bolt, a rotating shaft and a door lock, the middle of the rotating shaft is provided with a hole and is provided with the door lock at the position of the hole, the rotating shaft is arranged in the vertical direction, two ends of the rotating shaft are simultaneously driven to rotate in opposite directions through rotating the door lock, the two ends of the rotating shaft are respectively connected with the door bolt in a rotating mode through the rotating shaft, the door bolt is driven to stretch in the inner space of the tool door, the door bolt is recorded to form an angle theta between the door bolt and the rotating shaft in a state of being opened, the door bolt is recorded to be L1', the length of the door bolt is L2, L2/theta is recorded to be one half of the width of the front door plate 1, the door bolt is ensured to be positioned at one end of the door bolt in the state of the door lock body in the state of the door lock is kept away from the inner door lock, and is positioned at one end of the tool door body in the state of the door lock state.
Before the tool door is assembled and installed, firstly, a plurality of mounting holes matched with the positions of the door bolts on the tool door are punched on wall bodies or door posts on two sides of a door opening of a room for blocking passage, and the shape of the mounting holes is consistent with the shape of the section of the door bolts so that the door bolts extend out of the side edges of the tool door body and are inserted; after the mounting holes are drilled, placing the tool door in the middle of a door opening of a blocking room, rotating a door lock by using a key to drive each door bolt to rotate, penetrating out the tool door, inserting the tool door into the mounting holes, and fixing the tool door in two side walls or door posts for locking; when the working procedure is handed over and the tool door needs to be opened, the door lock is reversely rotated by using the key to drive each door bolt to withdraw from the mounting hole, and the door bolt is retracted into the tool door so as to take off the tool door.
Still further, joint structure below is provided with linkage structure, linkage structure includes keeper, pivot, axis of rotation and keeper fixed axle, the axis of rotation middle part offer with keeper fixed axle external diameter complex hole, the pivot axle sleeve is established outside the keeper fixed axle, joint structure and linkage structure drive through the transfer line, are located the door plant and are provided with the hole that supplies the transfer line to pass on being located the door strip of transfer line extending direction.
Still further, the transfer line is vertical pole, arbitrary keeper in transfer line one end and the joint structure rotates to be connected, the transfer line other end rotates with the keeper of being connected the keeper homonymy in the linkage structure to be connected, avoids alternately, drives the keeper of being connected with the transfer line in the linkage through the transfer line when rotating with transfer line connection keeper in the joint structure to drive the axis of rotation through the keeper, reach the opposite side and do not connect the keeper of transfer line and carry out pivoted purpose, realize synchronous drive.
Further, the transmission rod comprises a vertical part movably connected with the door bolt in the clamping structure and an arc part rotationally connected with the end part of the rotation shaft in the linkage structure, the whole length of the transmission rod is synchronous with the center distance between the clamping structure and the center of the linkage structure, namely one end of the transmission rod is connected with the door bolt connected with the upper end rotation shaft in the clamping structure, and the other end of the transmission rod is connected with the upper end of the rotation shaft in the linkage structure; vice versa, in order to guarantee that two axis of rotation in joint structure and the linkage structure are the same direction rotation, guarantee that each keeper opens or closes simultaneously.
Furthermore, the number of the transmission rods can be multiple, and the transmission rods are symmetrically distributed by taking the rotating shafts as symmetrical shafts, so that timely and rapid synchronous driving is ensured.
Still further, the keeper fixed axle includes axle sleeve and axle core, be provided with the gasket between keeper fixed axle and the positive door lamina, the axis of rotation is located between axle sleeve and the axle core and installs the gasket additional and fix, when carrying out the installation of keeper fixed axle, at first installs the screw in positive door lamina lower part screw department, later wears the gasket that has the through-hole on the screw, then installs the axle sleeve additional on the gasket, adopts the bolt to fix, and then puts the axis of rotation in the axle sleeve of fretwork, finally penetrates the axle core axle sleeve and installs the gasket additional and accomplish the installation.
Still further, be provided with a plurality of and each on the positive door plant the bracket that the cooperation of keeper was used, the bracket is fixed through welded mode with the positive door plant, each the bracket is located the one end that the keeper kept away from the axis of rotation and supplies the keeper to pass to place the keeper and directly droop after the keeper is retracted into instrument door inner space, influence reinstallation.
Furthermore, the front door plate, the rear door plate, the door belt and the bracket are made of profiled steel sheets within the range of 1.3-1.7 mm.
Furthermore, the door bolt and the transmission rod are made of steel bars with diameters ranging from 5mm to 12 mm.
The tool door with the structure can be applied to the installation and removal of the tool door in the construction stage of the building field, namely, the room door or the entrance door and the corresponding wall cavity with the door cavity property, is a powerful tool which needs to be blocked for passing due to the construction sequence or the working procedure requirement or other reasons, is quick and simple to install and remove, is opened or closed by a key, has high safety, can be repeatedly used, and avoids material waste.
Drawings
FIG. 1 is a schematic view of the internal structure of a front door panel according to the present invention.
Fig. 2 is a schematic view of the structure of the rear door panel of the present invention.
Fig. 3 is a schematic structural view of the clamping structure of the present invention.
Fig. 4 is a schematic structural view of the linkage structure of the present invention.
Fig. 5 is a schematic top view of the bracket of the present invention.
Fig. 6 is a schematic side view of a bracket of the present invention.
1. Front door plate, rear door plate, door belt, door lock, door bolt, drive rod, vertical part, etc.,
6.2. Arc part, rotary shaft, bolt fixing shaft, door handle, bracket, gasket, passing door bolt and rotary shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Embodiment one: the temporary installation tool door for blocking a door opening of a room is shown in fig. 1 to 6, and comprises a front door plate 1 and a rear door plate 2, wherein a plurality of door belts 3 are additionally arranged on the front door plate 1 and fixed with the rear door plate 2 through door passing blocks 12 in corresponding holes on the door belts 3, the door belts 3 are uniformly distributed on each door plate of the tool door so as to realize good fixation, lower edges of the front door plate 1 and the rear door plate 2 are bent and perforated so as to be fixed, a space capable of accommodating a clamping structure is formed in the front door plate 1 and the rear door plate 2, the clamping structure comprises a door bolt 5, a rotating shaft 7, a rotating shaft 13 and a door lock 4, the middle part of the rotating shaft 13 is provided with a door lock 4 at the opening position, the rotating shaft 13 is arranged in the vertical direction, two ends of the rotating shaft 13 are simultaneously driven to rotate in opposite directions through the rotating door lock 4, two ends of the rotating shaft 13 are respectively connected with the door bolt 5 in a rotating way through the rotating shaft 7, the door bolt is driven to stretch out and draw back in the inner space of the tool door, the door bolt 5 is in an opened state, an angle theta formed between the front door plate 1 and the rotating shaft 13 is a fixed shaft 1, the door plate is positioned at one end part of the door bolt 5 is far away from the door bolt 8, the door bolt 8 is driven by the rotating shaft 1 and the door bolt 4, the door bolt 8 is positioned at one end part 1 is far away from the door bolt 8, the door bolt 8 is positioned at the end 1 is far from the door bolt 8, and is linked with the door bolt 8, and is positioned at one end 1 side at the end 6, the door belt 3 positioned on the door plate and positioned in the extending direction of the transmission rod 6 is provided with a hole for the transmission rod 6 to pass through.
Before the tool door is assembled and installed, firstly, a plurality of mounting holes matched with the positions of the door bolts 5 on the tool door are punched on the wall bodies or door posts on the two sides of the door opening of a room for blocking passage, and the shape of the mounting holes is consistent with the shape of the section of the door bolts for inserting after the door bolts extend out of the side edges of the tool door body; after the mounting holes are drilled, placing the tool door in the middle of a door opening of a blocking room, rotating the door lock by using a key to drive each door bolt 5 to rotate, penetrating out the tool door, inserting the tool door into the mounting holes, and fixing the tool door in the two side walls or the door posts for locking; when the working procedure is handed over and the tool door needs to be opened, the door lock is rotated reversely by using the key to drive each door bolt to extend out of the mounting hole and retract into the tool door so as to take off the tool door.
Embodiment two: on the basis of the first embodiment, the transmission rod 6 is a vertical rod, one end of the transmission rod 6 is rotationally connected with any bolt in the clamping structure, the other end of the transmission rod 6 is rotationally connected with the bolt on the same side of the connected bolt in the linkage structure, the cross is avoided, the bolt connected with the transmission rod 6 in the linkage device is driven to rotate through the transmission rod 6 when the bolt connected with the transmission rod 6 in the clamping structure rotates, the rotation shaft is driven through the bolt, the purpose of driving the bolt on the other side of the transmission rod 6 not connected to rotate is achieved, and synchronous driving is achieved.
Embodiment III: on the basis of the first embodiment, the transmission rod 6 comprises a vertical part 6.1 movably connected with a bolt in the clamping structure and an arc part 6.2 rotatably connected with the end part of a rotating shaft in the linkage structure, the whole length of the transmission rod 6 is synchronous with the center distance between the clamping structure and the center of the linkage structure, namely one end of the transmission rod 6 is connected with the bolt in the clamping structure and connected with the rotating shaft at the upper end, and the other end of the transmission rod is connected with the upper end of the rotating shaft in the linkage structure; vice versa, so as to ensure that the clamping structure and the two rotating shafts 13 in the linkage structure rotate in the same direction and ensure that all the door bolts are opened or closed simultaneously.
In the second and third embodiments, the number of the transmission rods 6 may be plural, and the transmission rods are symmetrically distributed with the rotation shaft 13 as a symmetry axis, so as to ensure timely and rapid synchronous driving.
In the second and third embodiments, the bolt fixing shaft 8 includes a shaft sleeve and a shaft core, a gasket 11 is disposed between the bolt fixing shaft 8 and the front door plate 1, the rotating shaft 13 is disposed between the shaft sleeve and the shaft core, and the gasket 11 is additionally installed to fix the bolt fixing shaft, when the bolt fixing shaft is installed, a screw is installed at a screw hole at the lower portion of the front door plate 1, then the gasket 11 with a through hole is threaded on the screw, then the shaft sleeve is additionally installed on the gasket, the bolt is used to fix the bolt, then the rotating shaft 13 is placed in the hollow shaft sleeve, and finally the shaft core is threaded into the shaft sleeve to additionally install the gasket.
In the above embodiment, the front door plate 1 is provided with a plurality of brackets 10 which are matched with the bolts 5, the brackets 10 and the front door plate 1 are fixed in a welding mode, the brackets are positioned at one end of the bolts 5 far away from the rotating shaft 13 for the bolts 5 to pass through, and the bolts are placed to directly droop after the bolts 5 are retracted into the tool door inner space, so that reinstallation is affected.
In an embodiment, the front door panel 1, the rear door panel 2, the door strap 3 and the bracket 10 are made of profiled steel sheets with the diameter ranging from 1.3 mm to 1.7mm, and the door bolt 5 and the transmission rod 6 are made of steel bars with the diameter ranging from 5 mm to 12 mm.
The tool door with the structure can be applied to the installation and removal of the tool door in the construction stage of the building field, namely, the room door or the entrance door and the corresponding wall cavity with the door cavity property, is a powerful tool which needs to be blocked for passing due to the construction sequence or the working procedure requirement or other reasons, is quick and simple to install and remove, is opened or closed by a key, has high safety, can be repeatedly used, and avoids material waste.
The present invention has been described in detail by way of specific embodiments and examples, but these should not be construed as limiting the invention. Many variations and modifications may be made by one skilled in the art without departing from the principles of the invention, which is also considered to be within the scope of the invention.
Claims (6)
1. The temporary mounting tool door for blocking a door opening of a room comprises a front door plate (1) and a rear door plate (2), and is characterized in that a door belt (3) is arranged on the front door plate (1) and is fixed with the rear door plate (2) through the door belt (3), a space capable of accommodating a clamping structure is formed in the front door plate (1) and the rear door plate (2), the clamping structure comprises a door bolt (5), a rotating shaft (7), a rotating shaft (13) and a door lock (4), the middle of the rotating shaft (13) is provided with a hole and is provided with a door lock (4) at the position of the hole, two ends of the rotating shaft (13) are respectively connected with the door bolt (5) in a rotating mode through the rotating shaft (7), each door bolt (5) stretches out and draws back in an inner space of the tool door, one end portion of each door bolt (5) far away from the rotating shaft (7) is located outside the tool door body in a locking state of the door lock (4), a locking structure is arranged below the clamping structure, the clamping structure comprises a door bolt (5), the rotating shaft (7) and the rotating shaft (8) is provided with a fixed shaft (8) in a locking state, the middle of the door bolt is matched with the door bolt (8) through the fixed shaft, the front door plate (1) is provided with a plurality of brackets (10) which are matched with the door bolts (5), and the brackets are positioned at one end of the door bolts (5) far away from the rotating shaft (13) for the door bolts (5) to pass through.
2. The temporary installation tool door for blocking a door opening of a room according to claim 1, wherein the transmission rod (6) is a vertical rod, one end of the transmission rod (6) is rotatably connected with any door bolt in the clamping structure, and the other end of the transmission rod (6) is rotatably connected with the door bolt on the same side as the connected door bolt in the linkage structure.
3. A temporary installation tool door for blocking a door opening of a room according to claim 1, wherein the transmission rod (6) comprises a vertical part (6.1) movably connected with a bolt in the clamping structure and an arc part (6.2) rotatably connected with the end part of the rotation in the linkage structure, and the length of the transmission rod (6) is kept synchronous with the center-to-center distance between the clamping structure and the linkage structure.
4. Temporary installation tool door for blocking a door opening of a room according to claim 1, wherein the bolt fixing shaft (8) comprises a shaft sleeve and a shaft core, a gasket (11) is arranged between the bolt fixing shaft (8) and the front door plate (1), and the rotating shaft (13) is positioned between the shaft sleeve and the shaft core and is fixed by adding the gasket (11).
5. The temporary installation tool door for blocking a door opening of a room according to any one of claims 1 to 4, wherein the front door panel (1), the rear door panel (2) and the door strap (3) are manufactured using profiled steel sheets in a range of 1.3 to 1.7 mm.
6. A temporary installation tool door for blocking a door opening of a room according to any one of claims 1 to 4, wherein the door bolt (5) and the transmission rod (6) are made of steel bars with diameters ranging from 5 to 12 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072254.3A CN110671022B (en) | 2019-11-05 | 2019-11-05 | Temporary installation tool door for blocking door opening of room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072254.3A CN110671022B (en) | 2019-11-05 | 2019-11-05 | Temporary installation tool door for blocking door opening of room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110671022A CN110671022A (en) | 2020-01-10 |
| CN110671022B true CN110671022B (en) | 2024-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911072254.3A Active CN110671022B (en) | 2019-11-05 | 2019-11-05 | Temporary installation tool door for blocking door opening of room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110671022B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208441702U (en) * | 2018-06-20 | 2019-01-29 | 广东水电二局股份有限公司 | A kind of safety door in construction project |
| CN211313923U (en) * | 2019-11-05 | 2020-08-21 | 河南省第二建设集团有限公司 | Temporary installation tool door for blocking room door opening |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2247269A (en) * | 1991-01-24 | 1992-02-26 | Watt Ronald W | A security door assembly |
| JP4809915B2 (en) * | 2009-07-28 | 2011-11-09 | タキゲン製造株式会社 | Housing door structure |
| CN104003270A (en) * | 2014-06-10 | 2014-08-27 | 昆山亿顺自动化科技有限公司 | Lock for landing door of construction elevator |
| CN205046867U (en) * | 2015-10-22 | 2016-02-24 | 武汉建工集团股份有限公司 | Go up second open -type elevartor shaft safety -protective door |
| CN108222787A (en) * | 2018-03-20 | 2018-06-29 | 浙江开创智库科技有限公司 | A kind of novel building elevator protective door |
| CN208203005U (en) * | 2018-04-26 | 2018-12-07 | 浙江友邦集成墙面有限公司 | A kind of assembling door assembling structure |
-
2019
- 2019-11-05 CN CN201911072254.3A patent/CN110671022B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208441702U (en) * | 2018-06-20 | 2019-01-29 | 广东水电二局股份有限公司 | A kind of safety door in construction project |
| CN211313923U (en) * | 2019-11-05 | 2020-08-21 | 河南省第二建设集团有限公司 | Temporary installation tool door for blocking room door opening |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110671022A (en) | 2020-01-10 |
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