CN203682841U - Automatic sensing opening and closing device of building floor construction protective door - Google Patents
Automatic sensing opening and closing device of building floor construction protective door Download PDFInfo
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- CN203682841U CN203682841U CN201320836350.2U CN201320836350U CN203682841U CN 203682841 U CN203682841 U CN 203682841U CN 201320836350 U CN201320836350 U CN 201320836350U CN 203682841 U CN203682841 U CN 203682841U
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- 230000001681 protective effect Effects 0.000 title claims abstract description 80
- 238000010276 construction Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 3
- 230000001939 inductive effect Effects 0.000 claims description 40
- 238000013459 approach Methods 0.000 claims description 35
- 238000007599 discharging Methods 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000009435 building construction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000003973 paint Substances 0.000 description 3
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
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Abstract
The utility model discloses an automatic sensing opening and closing device of a building floor construction protective door, and belongs to the technical field of building construction. The automatic sensing opening and closing device comprises a protective door movable opening device, a protective door fixing frame body device and a sensor device, wherein angle iron on the protective door movable opening device is fixedly connected with a cross steel pipe on the protective door fixing frame body device through bolts; an electromagnetic door locker contact on the sensor device is connected with the protective door movable opening device. The automatic sensing opening and closing device has a simple structure, is convenient to operate and control, obvious in effect, simple in construction technology, short in construction period, high in construction efficiency and high in stability and operability, and is widely applied to automatic opening and closing construction for vertically conveying protective doors in all floors of buildings during engineering construction of industrial and civil buildings.
Description
Technical field
The utility model belongs to technical field of building construction, is specifically related to a kind of architecture storey construction protection door and automatically responds to opening and closing device.
Background technology
In building construction process, construction elevator is a kind of equipment of normal language, because Occupation coefficient is high, and the goods emphasis carrying, often break down, protective door does not have the effect of protection, and the phenomenons such as elevator folder people occur, therefore the architecture storey construction protection door that, designs a kind of intelligence is automatically responded to opening and closing device and is seemed particularly important.
Utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of architecture storey construction protection door with automatic induction switching function automatically to respond to opening and closing device.
Described architecture storey construction protection door is responded to opening and closing device automatically, formed by protective door movable open opening device, protective door fixing bracket body device and transformer device, angle bar on protective door movable open opening device described in it is characterized in that and the cross steel pipe on protective door fixing bracket body device are bolted to connection, and the electromagnetism door lock contact on transformer device is connected with protective door movable open opening device.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described protective door movable open opening device comprises angle bar and card cutter, described angle bar and the vertical formation support body that is fixedly connected with of cross steel pipe, card cutter is screwed on support body, on described card cutter, groove is set, the reinforcing bar latch at groove and protective door upper ledge edge is connected, described angle bar arranged outside limit steel bar, on angle bar and card cutter, bar dowel is set respectively, limit spring is by bar dowel connecting angle iron and card cutter.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described bar dowel is at the link slot that has 1mm apart from point of connection 8mm place, for fixing limit spring, apart from point of connection 15mm place, bayonet lock is set.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described limit steel bar is inclined on angle bar, the upper end of limit steel bar is near the bar dowel place of card cutter, and lower end is arranged under card cutter blade, and its angle of inclination is 25-35 °.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described protective door fixing bracket body device is connected with the vertical rod of steel pipe discharging platform by fastener, protective door fixing bracket body device comprises cross steel pipe, regularization turning part and template, described cross steel pipe connects and composes protective door fixing bracket body by regularization turning part, template is fixedly installed on protective door fixing bracket body periphery, forms fully enclosed space.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described regularization attaching parts comprises cross connecting element, L shaped attaching parts and T-connecting piece.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that the both sides of described template are provided with floor call device.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described transformer device comprises that optics approaches inductive transmitter, optics approaches inducing receiver and electromagnetism door lock, described electromagnetism door lock is arranged on protective door movable open opening device, optics approaches inductive transmitter and optics and approaches inducing receiver and be two groups, be separately positioned on construction elevator cage and the correspondence position of steel pipe discharging platform, optics approaches inductive transmitter and approaches inducing receiver signal with electromagnetism door lock, optics and be connected.
Described architecture storey construction protection door is responded to opening and closing device automatically, it is characterized in that described electromagnetism door lock contact one end is fixedly connected with card cutter by irony pipe link, and the other end is fixed on angle bar.
Described architecture storey construction protection door is responded to the construction technology of opening and closing device automatically, it is characterized in that comprising the steps:
1) steel pipe discharging platform is first installed, every layer of steel pipe discharging platform and structural body are rigidly connected, and on this steel pipe discharging platform, completely spread 4cm plank, and entirety is totally enclosed, and stone and refuse can not drop;
2) installation to protective door fixing bracket body device, according to the size of steel pipe discharging platform, cross steel pipe, template are carried out to blanking, cross steel pipe is assembled by cross connecting element, L shaped attaching parts and T-connecting piece regularization, obtain protective door fixing bracket body, and at the thick steel plate of cross connecting piece termination welding 5mm, the template of lower honest material is fixed with screw and protective door fixing bracket body, be connected up and down with the vertical rod of steel pipe discharging platform with fastener, form fully enclosed structure, floor call device is arranged on to the both sides of protective door fixing bracket body cope match-plate pattern;
3) installation of protective door movable open opening device, according to design paper, carries out the making of card cutter and angle bar,
Angle bar and card cutter are connected on the cross steel pipe on protective door fixing bracket body, fix with hexagonal bar iron; Welding short steel rod on card cutter and angle bar, weld seam is spot welding, and on bar dowel, 8mm place opens the link slot that 1mm is dark and limits spring for fixing, and at bar dowel 15mm place, bayonet lock is set, and on angle bar, mounting inclination angle degree is the limit steel bar of 30 °;
4) installation of transformer device is fixed on electromagnetism door lock on angle bar, its switch connects 36V voltage, convert 380V to 36V safety voltage by voltage transformer, the PVC poling that insulate for electric wire, lay fixing along material platform standard, on each construction elevator cage, optics is installed and is approached inductive transmitter, on the steel pipe discharging platform of every layer, optics approaches inducing receiver, optics is approached to inducing receiver and be connected with the electromagnetism door lock of protective door movable open opening device;
5) debugging
On certain layer of appointment, pass on instruction to construction elevator driver by floor call device, construction elevator cage arrives designated floor, optics approaches inductive transmitter and sends infrared ray and optics and approach inducing receiver and receive, and approaches inducing receiver spread out of instruction and move to electromagnetism door lock by optics; Electromagnetic switch energising starts and moves downward, and moment is opened card cutter opens the elevator door of steel pipe discharging platform automatically, and personnel enter cage, complete single job process, electromagnetism door lock is being set operation power-off after 10 seconds, and limit spring resets, and card cutter is back to spacing position; In the time shutting lift protects door, due to effect of inertia, by the Hui Li of limit spring, make card cutter block the reinforcing bar latch at protective door upper ledge edge along the arc surface of the edge of a knife, elevator door is sealed.
The utility model, by adopting above-mentioned technology, constitutes architecture storey construction protection door by protective door movable open opening device, protective door fixing bracket body device and transformer device three parts and automatically responds to opening and closing device, has following beneficial effect:
1) protective door movable open opening device of the present utility model comprises angle bar and card cutter, card cutter is screwed in angle bar and with the cross steel pipe of protective door fixing bracket body device and is connected, the groove of card cutter is connected with the reinforcing bar latch at protective door upper ledge edge and locks mutually, to reach the requirement of automatic unlatching, the limit steel bar arranging on angle bar limits for the position that limits the activity of card cutter, spring limits the angle of card cutter, thereby meets the angle control requirement that protective door is opened automatically;
2) in the time that construction elevator cage rises to arrived floor, projector sends instruction (infrared ray) and receives with receptor, receptor, by passing on instruction with the connection lead of electromagnetism door lock, makes electromagnetic switch energising start and move downward, and moment opens card cutter and makes to expect that platform elevator door opens automatically.After power-off, by the Hui Li of self made spring, make card cutter block the reinforcing bar latch at protective door upper ledge edge, elevator door automatic locking.This device convenient operation and control, effect is remarkable.
3) protective door fixing bracket body device of the present utility model is become by cross steel pipe, regularization attaching parts and template, floor call device is arranged in the template of support body both sides, the effective bolt of cross steel on angle bar and the fixing bracket body device of protective door movable open opening device is fixed, the vertical rod of frame device and steel pipe discharging platform is fixing up and down with fastener, support body outside is totally-enclosed by template, adopt screw and steel pipe to fix, one-shot forming is installed, regularization is high, stability is good, but also can repeated usage, improve operating efficiency and reduced construction cost;
4) transformer device of the present utility model by optics approach inductive transmitter, optics approaches inducing receiver, electromagnetism door lock and electric wire accessory and forms, electromagnetism door lock contact one end is fixed on card cutter by irony pipe link, the other end is fixed on angle bar, in the time that construction elevator cage rises to arrived floor, projector sends instruction and receptor receives, receptor is by passing on instruction with the connection lead of electromagnetism door lock, make electromagnetic switch energising start and move downward, moment opens card cutter and makes to expect that platform elevator door opens automatically.After power-off, by the Hui Li of self made spring, make card cutter block the reinforcing bar latch at protective door upper ledge edge, elevator door automatic locking, this device convenient operation and control, effect is remarkable;
5) simple, easy to operate, the short construction period of the utility model construction technology and operating efficiency are high, the architecture storey construction protection door obtaining responds to that opening and closing device stability is high, operability good automatically, and the automatic shutter that is widely used in building in industry and civil building engineering construction the each floor protection door of vertical transport is constructed.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is protective door movable open opening device structural representation of the present utility model;
Fig. 3 is the bar dowel connecting bridge structure for amplifying schematic diagram of the utility model Fig. 2;
Fig. 4 is protective door fixing bracket body apparatus structure schematic diagram of the present utility model.
In figure: 1-steel pipe discharging platform, 2-floor call device, 3-transformer device, 4-optics approaches inducing receiver, 5-construction elevator cage, 6-optics approaches inductive transmitter, 7-floor protection door, 8-limit steel bar, 9-bar dowel, 9a-link slot, 9b-bayonet lock, 10-card cutter, 10a-groove, 11-reinforcing bar latch, 12-angle bar, 13-limit spring, 14-electromagnetism door lock, 15-irony pipe link, 16-T shape attaching parts, 17-cross connecting element, 18-protective door movable open opening device, 19-template, 20-protective door fixing bracket body device, 21-L shape attaching parts.
The specific embodiment
Below in conjunction with Figure of description, the utility model will be further described:
As Figure 1-4, architecture storey construction protection door is responded to opening and closing device automatically, formed by protective door movable open opening device 18, protective door fixing bracket body device 20 and transformer device 3, angle bar 12 on described protective door movable open opening device 18 is bolted to connection with the cross steel pipe on protective door fixing bracket body device 20, and electromagnetism door lock 14 contacts on transformer device 3 are connected with protective door movable open opening device;
As shown in Figure 2, described protective door movable open opening device 18 comprises angle bar 12 and card cutter 10, described angle bar 12 and the vertical formation support body that is fixedly connected with of cross steel pipe, card cutter 10 is screwed on support body, on described card cutter 10, groove 10a is set, the reinforcing bar latch 11 at groove 10a and protective door upper ledge edge is connected, described angle bar 12 arranged outside limit steel bars 8, on angle bar 12 and card cutter 10, bar dowel 9 is set respectively, limit spring 13 is by bar dowel 9 connecting angle irons 12 and card cutter 10, described bar dowel 9 is having the link slot 9a of 1mm apart from point of connection 8mm place, for fixing limit spring 13, apart from point of connection 15mm place, bayonet lock 9b is set, limit steel bar 8 is inclined on angle bar 12, the upper end of limit steel bar 8 is near bar dowel 9 places of card cutter 10, lower end is arranged under card cutter 10 blades, its angle of inclination is 25-35 °, be preferably 30 °.
Described protective door fixing bracket body device 20 is connected with the vertical rod of steel pipe discharging platform 1 by fastener, protective door fixing bracket body comprises cross steel pipe, regularization turning part and template 19, described cross steel pipe connects and composes protective door fixing bracket body by regularization turning part, template 19 is fixedly installed on protective door fixing bracket body periphery, form fully enclosed space, described regularization attaching parts comprises cross connecting piece 17, L shaped attaching parts 21 and T-connecting piece 16, when wherein cross connecting piece 17 all needs joint steel pipe for four direction, use, L shaped attaching parts 21 is for support body four angle parts, only have both direction to need joint steel pipe, the steel pipe that T-connecting piece 16 connects three directions for middle part, support body side is used, the both sides of protective door fixing bracket body template 19 are provided with floor call device 2.
Described transformer device comprises that optics approaches inductive transmitter 6, optics approaches inducing receiver 4 and electromagnetism door lock 14, described electromagnetism door lock 14 is arranged on protective door movable open opening device 18, optics approaches inductive transmitter 6 and approaches inducing receiver 4 with optics and be two groups, be separately positioned on construction elevator cage 5 and the correspondence position of steel pipe discharging platform 1, optics approaches inductive transmitter 6 and electromagnetism door lock 14, optics approaches inducing receiver 4 signals and connects, electromagnetism door lock 14 contact one end are fixedly connected with card cutter 10 by irony pipe link 15, the other end is fixed on angle bar 12.
Architecture storey construction protection door of the present utility model is responded to the construction technology of opening and closing device automatically, comprises the steps:
1) technological process
Construction preparation → installation protective door fixing bracket body → installation protective door movable open opening device → installation electromagnetism door lock → installation optics approaches inductive transmitter, optics approaches inducing receiver → debugging → examination;
2) construction preparation
A installs steel pipe discharging platform 1, and employing steel tube fastener should be worked out special scheme before setting up, and scaffolding height exceedes 30m should adopt unloading manner, and every layer is connected with structural rigidity, on steel pipe construction material platform, completely spreads 4cm plank, and totally-enclosed, stone and refuse can not drop;
B brushes paint red and white to protective door fixing bracket body, and interval 500mm comprises cross connecting element 17 (2/layer), L shaped attaching parts 21 (4/layer), T-connecting piece 16(4/layer), all brush red paint;
C selectes template 19, and width is determined by material platform size, height 1.8m, and brush paint red and white, on it, hang floor identification board;
D carries out the making of card cutter 10 and angle bar 12, carries out route card cutter 10 and angle bar 12 according to figure paper size, and card cutter 10 is the steel plate that 3mm is thick.
2) protective door fixing bracket body is installed
A unloads the good length of size quantity of charging area 1 according to steel pipe, carry out steel pipe blanking, and carry out regularization assembling, at the thick steel plate (48 × 48mm of cross connecting element 17 termination weldering 5mm, material Q235B, the hole of Φ 5 is opened in centre), template 19 use screws and the protective door fixing bracket body of lower honest material to be fixed, the vertical rod of unloading charging area 1 with fastener and steel pipe is connected twice up and down;
Every layer of b installs floor call device 2, floor call device 2 is arranged on to the both sides of protective door fixing bracket body cope match-plate pattern 19, installs two for general every layer, and every is connected with construction elevator cage 5, makes every construction elevator cage 5 transport up and down independent operating;
C installs protective door movable open opening device 18 the cross steel pipe on protective door fixing bracket body is connected with angle bar 12 and card cutter 10 on protective door movable open opening device 18, fixes with the hexagonal bar iron of Φ 4.8;
3) protective door movable open opening device is installed
A is welding short steel rod 9(Φ 6 × 20 on card cutter 10 and angle bar 12), weld seam is spot welding, on bar dowel 9,8mm place opens the link slot 9a that 1mm is dark and uses 19# fixation with steel wire limit spring 13(0.3 × 10 × 90), and block with zinc-plated bayonet lock 9b at 15mm place, bar dowel 9 is processed and is bored Φ 2 holes by lathe;
B install diameter 6mm round steel (long 55mm) limit steel bar 8, angle 30 is spent, and adopts long 90mm(0.3 × 10 × 90) homemade limit spring 13, one end is connected with the bar dowel 9 on card cutter 10, the other end is connected with the bar dowel 9 on angle bar 12; Electromagnetism door lock 14 switches of every layer connect 36V voltage, convert 380V to 36V safety voltage by voltage transformer, and the PVC poling that insulate for electric wire lays fixing along material platform standard;
4) transformer device is installed
A installs optics and approaches each one of inductive transmitter 6 on each construction elevator cage 5, converts 380V to 36V safety voltage approach inductive transmitter 6 with optics and be connected by voltage transformer; On the steel pipe discharging platform 1 of every layer, optics is installed and is approached inducing receiver 4, totally 2, optics is approached to inducing receiver 4 and be connected with the electromagnetism door lock 14 of protective door movable open opening device 18;
Installation one end of b electromagnetism door lock 14 is fixed on card cutter 10 by irony pipe link 15, and the other end is fixed on angle bar 12;
5) debugging
A passes on instruction to construction elevator driver by floor call device 2 on certain layer of appointment, construction elevator cage 5 arrives designated floor, optics approaches inductive transmitter 6 and sends infrared ray and optics and approach inducing receiver 4 and receive, and approaches inducing receiver 4 spread out of instruction and move to electromagnetism door lock 14 by optics;
The energising of b electromagnetic switch starts and moves downward, and moment is opened card cutter 10 opens steel pipe discharging platform 1 elevator door automatically, and personnel enter construction elevator cage 5, complete single job process;
C electromagnetism door lock 14 is being set operation power-off after 10 seconds, and limit spring 13 resets, and card cutter 10 is back to spacing position; In the time shutting lift protects door, due to effect of inertia, by the Hui Li of self-control limit spring 13, make card cutter 10 block the reinforcing bar latch 11 at protective door upper ledge edge along the arc surface of the edge of a knife, elevator door is sealed.
Technological principle of the present utility model is: specify on certain layer and pass on instruction to construction elevator driver by floor call device 2 in building, construction elevator cage 5 arrives designated floor, optics approaches inductive transmitter 6 and sends infrared ray and optics and approach inducing receiver 4 and receive, approaching inducing receiver 4 by optics spreads out of instruction and moves to electromagnetism door lock 14, electromagnetic switch energising starts and moves downward, moment is opened card cutter 10 opens steel pipe discharging platform 1 protective door automatically, personnel and goods enter construction elevator cage 5, electromagnetism door lock 14 is being set operation power-off after 10 seconds, limit spring 13 resets, card cutter 10 is back to spacing position, in the time shutting lift protects door, due to effect of inertia, by the Hui Li of self-control limit spring 13, make card cutter 10 block the reinforcing bar latch 11 at protective door upper ledge edge along the arc surface of the edge of a knife, lift protects door automatic locking, wait for that start next time, complete an operating process.
Claims (7)
1. architecture storey construction protection door is responded to opening and closing device automatically, by protective door movable open opening device (18), protective door fixing bracket body device (20) and transformer device (3) form, it is characterized in that the angle bar (12) on described protective door movable open opening device (18) is bolted to connection with the cross steel pipe on protective door fixing bracket body device (20), electromagnetism door lock (14) contact on transformer device (3) is connected with protective door movable open opening device (18), described protective door movable open opening device comprises angle bar (12) and card cutter (10), described angle bar (12) and the vertical formation support body that is fixedly connected with of cross steel pipe, card cutter (10) is screwed on support body, on described card cutter (10), groove (10a) is set, groove (10a) is connected with the reinforcing bar latch (11) at protective door upper ledge edge, described angle bar (12) arranged outside limit steel bar (8), on angle bar (12) and card cutter (10), bar dowel (9) is set respectively, limit spring (13) is by bar dowel (9) connecting angle iron (12) and card cutter (10), described transformer device (3) comprises that optics approaches inductive transmitter (6), optics approaches inducing receiver (4) and electromagnetism door lock (14), described electromagnetism door lock (14) is arranged on protective door movable open opening device (18), optics approaches inductive transmitter (6) and optics and approaches inducing receiver (4) and be two groups, be separately positioned on construction elevator cage (5) and the correspondence position of steel pipe discharging platform (1), optics approaches inductive transmitter (6) and electromagnetism door lock (14), optics approaches inducing receiver (4) signal and connects.
2. architecture storey construction protection door according to claim 1 is responded to opening and closing device automatically, it is characterized in that described bar dowel (9) is at the link slot (9a) that has 1mm apart from point of connection 8mm place, for fixing limit spring (13), apart from point of connection 15mm place, bayonet lock (9b) is set.
3. architecture storey construction protection door according to claim 1 is responded to opening and closing device automatically, it is characterized in that described limit steel bar (8) is inclined on angle bar (12), the upper end of limit steel bar (8) is located near the bar dowel (9) of card cutter (10), lower end is arranged under card cutter (10) blade, and its angle of inclination is 25-35 °.
4. architecture storey construction protection door according to claim 1 is responded to opening and closing device automatically, it is characterized in that described protective door fixing bracket body device (20) is connected with the vertical rod of steel pipe discharging platform (1) by fastener, protective door fixing bracket body device (20) comprises cross steel pipe, regularization turning part and template (19), described cross steel pipe connects and composes protective door fixing bracket body by regularization turning part, template (19) is fixedly installed on protective door fixing bracket body periphery, forms fully enclosed space.
5. architecture storey construction protection door according to claim 4 is responded to opening and closing device automatically, it is characterized in that described regularization attaching parts comprises cross connecting element (17), L shaped attaching parts (21) and T-connecting piece (16).
6. architecture storey construction protection door according to claim 4 is responded to opening and closing device automatically, it is characterized in that the both sides of described template (19) are provided with floor call device (2).
7. architecture storey construction protection door according to claim 1 is responded to opening and closing device automatically, it is characterized in that described electromagnetism door lock (14) contact one end is fixedly connected with card cutter (10) by irony pipe link (15), the other end is fixed on angle bar (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836350.2U CN203682841U (en) | 2013-12-18 | 2013-12-18 | Automatic sensing opening and closing device of building floor construction protective door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320836350.2U CN203682841U (en) | 2013-12-18 | 2013-12-18 | Automatic sensing opening and closing device of building floor construction protective door |
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| Publication Number | Publication Date |
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| CN203682841U true CN203682841U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320836350.2U Expired - Lifetime CN203682841U (en) | 2013-12-18 | 2013-12-18 | Automatic sensing opening and closing device of building floor construction protective door |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502070A (en) * | 2020-05-14 | 2020-08-07 | 华北理工大学 | Vertical splicing structure of prefabricated shear wall and construction method thereof |
-
2013
- 2013-12-18 CN CN201320836350.2U patent/CN203682841U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502070A (en) * | 2020-05-14 | 2020-08-07 | 华北理工大学 | Vertical splicing structure of prefabricated shear wall and construction method thereof |
| CN111502070B (en) * | 2020-05-14 | 2022-03-25 | 华北理工大学 | Vertical splicing structure of prefabricated shear wall and construction method thereof |
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Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |