CN209354769U - A kind of civil engineering anti-seismic structure - Google Patents
A kind of civil engineering anti-seismic structure Download PDFInfo
- Publication number
- CN209354769U CN209354769U CN201822255847.0U CN201822255847U CN209354769U CN 209354769 U CN209354769 U CN 209354769U CN 201822255847 U CN201822255847 U CN 201822255847U CN 209354769 U CN209354769 U CN 209354769U
- Authority
- CN
- China
- Prior art keywords
- fixed plate
- pad
- protection tube
- outer protection
- primary elastomeric
- 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.)
- Expired - Fee Related
Links
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model discloses a kind of civil engineering anti-seismic structures, belong to field of civil engineering, a kind of civil engineering anti-seismic structure, including the outer protection tube, pipeline body is plugged in the outer protection tube, protection rubber sleeve is connected between the outer protection tube and pipeline body, digging in protection rubber sleeve has cavity, cotton layer is filled in cavity, the left and right sides of the outer protection tube is placed with fixed plate, fixing screws are plugged in fixed plate, fixed plate is fixedly connected by fixing screws with building, two are respectively connected with telescopic rod between fixed plate and the outer protection tube, compressed spring is socketed on the outside of telescopic rod, and the both ends of compressed spring are fixedly connected with fixed plate and the outer protection tube respectively, it is socketed with the secondary rubber being mutually matched on the outside of telescopic rod and compressed spring and hits pad and primary elastomeric shock pad, it may be implemented to reduce external shock pair The influence of piping facility, makes pipeline be not easy external shock and destroy.
Description
Technical field
The utility model relates to field of civil engineering, more specifically to a kind of civil engineering anti-seismic structure.
Background technique
The country numerous, earthquake takes place frequently more is put down as a geological activity, the Ancient Times in China people are just answered by wisdom solution
To the civil engineering structure of earthquake, either mitigates the injury of earthquake by building the building of full-wood, still pass through swallow
Stern notch carrys out the bonding strength between ruggedized construction, can effectively cope with earthquake disaster.
In the middle utility model of Publication No. CN207830729U, a kind of civil engineering antidetonation reinforcement structure is disclosed, is wrapped
Include connecting column, fixing glue, the first card slot, the first spring, fixture block, the first elastic block rubber, the first mounting plate, second spring,
One through-hole, shock-proof plate, the second elastic block rubber, third spring, the second through-hole, the second mounting plate, clamping plate, bolt, pipeline, fixation
Block, nut, sleeve and the second card slot.This kind of novel civil engineering antidetonation reinforcement structure, by be fixedly connected with fixed block two
The mutual cooperation of a clamping plate can play fixed function to pipeline, enhance the stability of pipeline, alleviate pipeline due to external shock
Caused by pine it is right, enhance the stability of building, meanwhile, when pipeline is by external shock, the first elastic block rubber with
And internal second spring can play relaxation effect to external shock, using shock-proof plate, the second elastic block rubber and inside
Third spring cooperation layer by layer, improve the anti seismic efficiency of building.
In above scheme, the first elastic block rubber and the second elastic block rubber will play the cushioning effect of design, need to select
Elastic preferable material is made, and is connected between fixed block and connecting column by the first elastic block rubber and the second elastic rubber,
First elastic block rubber of the elastic material of selection and the intensity of the second elastic rubber are not enough to support fixed block, and fixed block can not
Fixed -piping, easily cause pipeline can not steady operation, although and can be selected as the first elastic block rubber and the second elastic rubber
With elastic material, but the first elastic block rubber and the second elastic rubber, in damping, the deformation of generation is smaller, and lesser deformation
It is insufficient to allow second spring and third spring to play the effect of damping.
Utility model content
1. technical problems to be solved
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide a kind of civil engineering antidetonation knots
Structure, it may be implemented to reduce influence of the external shock to piping facility, so that pipeline is not easy external shock and is destroyed, make pipeline
Facility is not easy to cause secondary damage to building.
2. technical solution
To solve the above problems, the utility model adopts the following technical scheme.
A kind of civil engineering anti-seismic structure, including the outer protection tube are plugged with pipeline body in described the outer protection tube, institute
It states and is connected with protection rubber sleeve between the outer protection tube and pipeline body, digging in the protection rubber sleeve has cavity, the sky
Intracavitary to be filled with cotton layer, the left and right sides of described the outer protection tube is placed with fixed plate, is plugged in the fixed plate solid
Determine screw, the fixed plate is fixedly connected by fixing screws with building, between two fixed plates and the outer protection tube
Be respectively connected with telescopic rod, be socketed with compressed spring on the outside of the telescopic rod, and the both ends of compressed spring respectively with fixed plate and
The outer protection tube is fixedly connected, and the secondary rubber being mutually matched is socketed on the outside of the telescopic rod and compressed spring and hits pad and master
Rubber hits pad, and the pair rubber hits pad and is fixedly connected with fixed plate, and the primary elastomeric hits pad to be fixed with the outer protection tube
Connection may be implemented to reduce influence of the external shock to piping facility, so that pipeline is not easy external shock and is destroyed, make pipeline
Facility is not easy to cause secondary damage to building.
Further, the fixed plate is connected with adaptation rubber pad far from one end of telescopic rod, on the adaptation rubber pad
Digging has a pair of through-hole to match with fixing screws, and the installation of fixed plate can be adapted to by self-deformation by adapting to rubber pad
Environment installs fixed plate more steady, while when the external world is shaken, fixed plate can effectively reduce
External shock is impacted caused by fixed plate, and fixed plate is made to be easy to held stationary.
Further, it includes that primary elastomeric hits pad main body that the primary elastomeric, which hits pad, and the primary elastomeric is hit in pad main body
Cutting has primary elastomeric to hit pad notch, and hitting to dig in pad main body in primary elastomeric has primary elastomeric to hit pad notch, so that primary elastomeric
Hitting pad can dismantle from fixed plate, and the outer protection tube and pipeline body is facilitated to assemble in the more narrow tunnel of entrance,
When primary elastomeric hits pad assembly completion, primary elastomeric hits pad notch faced downwards, so that primary elastomeric is hit pad notch and is not easy from admittedly
It falls off on the outside of fixed board.
Further, the primary elastomeric, which hits pad main body and digs close to one end of fixed plate, locating slot, the locating slot
Trough floor on be equipped with magnet ring, the positioning iron hoop to match with locating slot is connected in the fixed plate, pass through positioning iron hoop
With the matching of locating slot, facilitates staff that primary elastomeric is installed and hit pad, by the absorption of magnet ring and positioning iron hoop, make primary elastomeric
Pad is hit to be not easy to be detached from from fixed plate.
Further, spring washer is connected between the fixed plate and fixing screws, and spring washer is socketed in fixation
On screw, spring washer can make the connection of fixing screws be not easy to loosen.
Further, the outer surface of the fixing screws is coated with anti-corrosion layer, and fixing screws is made to be not easy to corrode, and is not easy to influence
Connection between fixed plate and the external world.
3. beneficial effect
Compared with the prior art, utility model has the advantages that
(1) this programme may be implemented to reduce influence of the external shock to piping facility, and pipeline is made to be not easy external shock and send out
It is raw to destroy, make piping facility be not easy to cause secondary damage to building.
(2) fixed plate is connected with adaptation rubber pad far from one end of telescopic rod, and cutting has a pair of and solid on adaptation rubber pad
Determine the through-hole that screw matches, the installation environment of fixed plate can be adapted to by self-deformation by adapting to rubber pad, make fixed plate
What can be installed is more steady, while when the external world is shaken, fixed plate can effectively reduce external shock to solid
It is impacted caused by fixed board, fixed plate is made to be easy to held stationary.
(3) it includes that primary elastomeric hits pad main body that primary elastomeric, which hits pad, and primary elastomeric, which hits to dig in pad main body, has primary elastomeric to hit
Pad notch is hit, cutting has primary elastomeric to hit pad notch in primary elastomeric shock pad main body, so that primary elastomeric shock pad can be from admittedly
It is dismantled on fixed board, the outer protection tube and pipeline body is facilitated to assemble in the more narrow tunnel of entrance, hit and pad in primary elastomeric
When assembly is completed, primary elastomeric hits pad notch faced downwards, so that primary elastomeric is hit pad notch and is not easy to fall off on the outside of fixed plate.
(4) primary elastomeric, which hits pad main body and digs close to one end of fixed plate, locating slot, is laid in the trough floor of locating slot
There is magnet ring, the positioning iron hoop to match with locating slot is connected in fixed plate, it is convenient by positioning the matching of iron hoop and locating slot
Staff installs primary elastomeric and hits pad, by the absorption of magnet ring and positioning iron hoop, so that primary elastomeric is hit pad and is not easy from fixed plate
Upper disengaging.
(5) spring washer is connected between fixed plate and fixing screws, and spring washer is socketed in fixing screws, spring
Washer can make the connection of fixing screws be not easy to loosen.
(6) outer surface of fixing screws is coated with anti-corrosion layer, and fixing screws is made to be not easy to corrode, and is not easy to influence fixed plate and outer
Connection between boundary.
Detailed description of the invention
Fig. 1 is the front section view of the utility model;
Fig. 2 is the structural schematic diagram in Fig. 1 at A;
Fig. 3 is that the primary elastomeric of the utility model hits mat structure schematic diagram.
Figure label explanation:
1 the outer protection tube, 2 pipeline bodies, 3 protection rubber sleeves, 4 cotton layers, 5 fixed plates, 6 telescopic rods, 7 compressed springs, 8
Secondary rubber hits pad, 9 primary elastomerics hit pad, 901 primary elastomerics hit pad main body, 902 primary elastomerics hit pad notch, 903 locating slots,
904 magnet rings, 10 adapt to rubber pad, 11 positioning iron hoops, 12 fixing screws.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe;Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside", " top/bottom end " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for description mesh
, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, can also be with
It is to be detachably connected, or be integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, it can also be with
Indirectly connected through an intermediary, it can be the connection inside two elements.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
Embodiment 1:
A kind of civil engineering anti-seismic structure referring to FIG. 1-2, including the outer protection tube 1 are plugged in the outer protection tube 1
Pipeline body 2 is connected with protection rubber sleeve 3, digs in protection rubber sleeve 3 free between the outer protection tube 1 and pipeline body 2
Chamber, cavity is interior to be filled with cotton layer 4, and the outer protection tube 1 and protection rubber sleeve 3 can protect pipeline body 2, make pipeline body
2 are not easy directly by foreign impacts, and when the external world has object to pound the outer protection tube 1, and protection rubber sleeve 3 is hit in transmitting to be made
At impact process when, most impact can be sponged, the impact that is subject to pipeline body 2 reduces, and cotton layer 4 exists
While playing reduction percussion, when temperature is lower in external environment, cotton layer 4 can also play insulation effect, make to protect
Shield rubber sleeve 3 is not easy to rupture because of too low environment temperature, and the left and right sides of the outer protection tube 1 is placed with fixed plate 5,
Fixing screws 12 are plugged in fixed plate 5, fixed plate 5 is fixedly connected by fixing screws 12 with building, two fixed plates 5 with
It is respectively connected with telescopic rod 6 between the outer protection tube 1, is connected between the outer protection tube 1 and fixed plate 5 by telescopic rod 6, telescopic rod
6 outside is socketed with compressed spring 7, and the both ends of compressed spring 7 are fixedly connected with fixed plate 5 and the outer protection tube 1 respectively, are stretched
The outside of contracting bar 6 and compressed spring 7 is socketed with the secondary rubber being mutually matched and hits pad 8 and primary elastomeric shock pad 9, and secondary rubber is hit
Pad 8 is fixedly connected with fixed plate 5, and primary elastomeric hits pad 9 and is fixedly connected with the outer protection tube 1, when the external world is shaken, impact
Pipe is passed to along the sequence for adapting to rubber pad 10, fixed plate 5, telescopic rod 6, the outer protection tube 1, protection rubber sleeve 3 and cotton layer 4
Road ontology 2 can effectively cut down impact by the reciprocating motion of telescopic rod 6 and compressed spring 7 during transmission of impacts
Intensity, reduce influence of the impact to pipeline body 2, and during telescopic rod 6 and compressed spring 7 move back and forth,
It will drive the outer protection tube 1, pipeline body 2 and protection rubber sleeve 3 to shake back and forth, influence the stability of pipeline body 2, and secondary rubber
The amplitude that the presence that glue hits pad 8 and primary elastomeric shock pad 9 can limit telescopic rod 6 and compressed spring 7 moves back and forth, makes pipeline
Ontology 2 is not susceptible to biggish shaking, and it is that elastic material rubber is made that secondary rubber, which hits pad 8 and primary elastomeric shock pad 9, secondary
Rubber hits the collision that pad 8 and primary elastomeric are hit between pad 9 and is not likely to produce biggish impact, is not easy the stabilization to pipeline body 2
Property impacts.
Referring to Fig. 2, fixed plate 5 is connected with far from one end of telescopic rod 6 adapts to rubber pad 10, adapt to open on rubber pad 10
It is carved with a pair of through-hole to match with fixing screws 12, fixed plate 5 can be adapted to by self-deformation by adapting to rubber pad 10
Installation environment installs fixed plate 5 more steady, while when the external world is shaken, fixed plate 5 can be effective
Reduction external shock impacted to caused by fixed plate 5, so that fixed plate 5 is easy to held stationary, fixed plate 5 and fixing screws 12 it
Between be connected with spring washer, and spring washer is socketed in fixing screws 12, and spring washer can make the connection of fixing screws 12
It is not easy to loosen, the outer surface of fixing screws 12 is coated with anti-corrosion layer, and fixing screws 12 is made to be not easy to corrode, and is not easy to influence fixed plate 5
Connection between the external world.
Referring to Fig. 3, it includes that primary elastomeric hits pad main body 901 that primary elastomeric, which hits pad 9, primary elastomeric is hit in pad main body 901
Cutting has primary elastomeric to hit pad notch 902, and hitting to dig in pad main body 901 in primary elastomeric has primary elastomeric to hit pad notch 902, makes
Obtaining primary elastomeric shock pad 9 can dismantle from fixed plate 5, facilitate the outer protection tube 1 and pipeline body 2 more narrow in entrance
It is assembled in tunnel, when primary elastomeric hits the assembly completion of pad 9, primary elastomeric hits pad 902 faced downwards of notch, hits primary elastomeric
Pad notch 902 is not easy to fall off from the outside of fixed plate 5, and primary elastomeric, which hits pad main body 901 and digs to have close to one end of fixed plate 5, to be determined
Position slot 903, is equipped with magnet ring 904 in the trough floor of locating slot 903, is connected in fixed plate 5 and determines with what locating slot 903 matched
Position iron hoop 11 facilitates staff to install primary elastomeric and hits pad 9, pass through magnetic by positioning the matching of iron hoop 11 and locating slot 903
The absorption of ring 904 and positioning iron hoop 11 makes primary elastomeric hit pad 9 and is not easy to be detached from from fixed plate 5.
When the external world is shaken, impact is along adaptation rubber pad 10, fixed plate 5, telescopic rod 6, the outer protection tube 1, protection
The sequence of rubber sleeve 3 and cotton layer 4 is passed to pipeline body 2, during transmission of impacts, passes through telescopic rod 6 and compression bullet
The reciprocating motion of spring 7 can effectively cut down the intensity of impact, reduce influence of the impact to pipeline body 2, and in 6 He of telescopic rod
During compressed spring 7 moves back and forth, it will drive the outer protection tube 1, pipeline body 2 and protection rubber sleeve 3 and shake back and forth
It is dynamic, the stability of pipeline body 2 is influenced, and the presence that secondary rubber hits pad 8 and primary elastomeric shock pad 9 can limit telescopic rod 6
The amplitude moved back and forth with compressed spring 7 makes pipeline body 2 be not susceptible to biggish shaking, and secondary rubber hits pad 8 and main rubber
It is that elastic material rubber is made that glue, which hits pad 9, and secondary rubber hits the collision that pad 8 and primary elastomeric are hit between pad 9 and is not likely to produce
Biggish impact is not easy to impact the stability of pipeline body 2, when there is external object to pound on the outer protection tube 1, outside
Layer protection pipe 1 and protection rubber sleeve 3 can protect pipeline body 2, be not easy pipeline body 2 directly by foreign impacts, and
At this point, protection rubber sleeve 3 can sponge most impact, make pipeline sheet when transmitting the process of impact caused by shock
Impact that body 2 is subject to reduces, and cotton layer 4 is while playing reduces percussion, when temperature is lower in external environment, cotton
Flower layer 4 can also play insulation effect, make that rubber sleeve 3 is protected to be not easy to rupture because of too low environment temperature, may be implemented
Influence of the external shock to piping facility is reduced, pipeline is made to be not easy external shock and destroy, is not easy piping facility to building
Build into secondary damage.
The preferable specific embodiment of the above, only the utility model;But the protection scope of the utility model is not
It is confined to this.Anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its improvement design is subject to equivalent substitution or change, should all cover in the protection scope of the utility model
It is interior.
Claims (6)
1. a kind of civil engineering anti-seismic structure, including the outer protection tube (1), the outer protection tube (1) is interior to be plugged with pipeline sheet
Body (2), it is characterised in that: protection rubber sleeve (3), the guarantor are connected between the outer protection tube (1) and pipeline body (2)
Digging in shield rubber sleeve (3) has cavity, is filled with cotton layer (4) in the cavity, the left and right sides of the outer protection tube (1)
It is placed with fixed plate (5), is plugged with fixing screws (12) on the fixed plate (5), the fixed plate (5) passes through fixing screws
(12) it is fixedly connected with building, is respectively connected with telescopic rod (6), institute between two fixed plates (5) and the outer protection tube (1)
It states and is socketed on the outside of telescopic rod (6) compressed spring (7), and the both ends of compressed spring (7) are protected with fixed plate (5) and outer layer respectively
Pillar (1) is fixedly connected, and the secondary rubber being mutually matched is socketed on the outside of the telescopic rod (6) and compressed spring (7) and hits pad
(8) and primary elastomeric hits pad (9), and the pair rubber hits pad (8) and is fixedly connected with fixed plate (5), and the primary elastomeric hits pad
(9) it is fixedly connected with the outer protection tube (1).
2. a kind of civil engineering anti-seismic structure according to claim 1, it is characterised in that: the fixed plate (5) is separate to stretch
One end of contracting bar (6), which is connected with, adapts to rubber pad (10), and digging on the adaptation rubber pad (10) has a pair of and fixing screws
(12) through-hole to match.
3. a kind of civil engineering anti-seismic structure according to claim 1, it is characterised in that: the primary elastomeric hits pad (9)
Pad main body (901) is hit including primary elastomeric, the primary elastomeric, which hits to dig on pad main body (901), has primary elastomeric to hit pad notch
(902)。
4. a kind of civil engineering anti-seismic structure according to claim 3, it is characterised in that: the primary elastomeric hits pad main body
(901) one end close to fixed plate (5) is dug and is had locating slot (903), is equipped with magnet ring in the trough floor of the locating slot (903)
(904), the positioning iron hoop (11) to match with locating slot (903) is connected on the fixed plate (5).
5. a kind of civil engineering anti-seismic structure according to claim 1, it is characterised in that: the fixed plate (5) and fixation
Spring washer is connected between screw (12), and spring washer is socketed on fixing screws (12).
6. a kind of civil engineering anti-seismic structure according to claim 1, it is characterised in that: outside the fixing screws (12)
Surface is coated with anti-corrosion layer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822255847.0U CN209354769U (en) | 2018-12-29 | 2018-12-29 | A kind of civil engineering anti-seismic structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201822255847.0U CN209354769U (en) | 2018-12-29 | 2018-12-29 | A kind of civil engineering anti-seismic structure |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209354769U true CN209354769U (en) | 2019-09-06 |
Family
ID=67802028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201822255847.0U Expired - Fee Related CN209354769U (en) | 2018-12-29 | 2018-12-29 | A kind of civil engineering anti-seismic structure |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209354769U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110657282A (en) * | 2019-09-29 | 2020-01-07 | 郑州铁路职业技术学院 | Civil engineering antidetonation structure |
CN112212079A (en) * | 2020-09-25 | 2021-01-12 | 滁州职业技术学院 | Civil engineering antidetonation structure |
CN112344112A (en) * | 2020-11-23 | 2021-02-09 | 江西省陛快管道科技有限公司 | Air compressor machine pipeline connection structure |
-
2018
- 2018-12-29 CN CN201822255847.0U patent/CN209354769U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110657282A (en) * | 2019-09-29 | 2020-01-07 | 郑州铁路职业技术学院 | Civil engineering antidetonation structure |
CN112212079A (en) * | 2020-09-25 | 2021-01-12 | 滁州职业技术学院 | Civil engineering antidetonation structure |
CN112344112A (en) * | 2020-11-23 | 2021-02-09 | 江西省陛快管道科技有限公司 | Air compressor machine pipeline connection structure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN209354769U (en) | A kind of civil engineering anti-seismic structure | |
KR101426204B1 (en) | Seismic device of wind power generator using the ball joint | |
CN207110103U (en) | The adjustable damping device of top surface and connection component | |
CN209855816U (en) | Anchor pulling and supporting system for highway soft rock tunnel | |
KR101351296B1 (en) | Earthquake-proof device having single stage structure | |
CN204876147U (en) | Support formula power consumption mechanism of insertible frame | |
CN213418131U (en) | Building earthquake-resistant structure | |
CN205604095U (en) | Fine sleeve of glass is consolidated and is restoreed pier under water | |
CN203334463U (en) | Building damping device | |
CN107355118A (en) | A kind of transmission tower | |
CN201735522U (en) | Swinging sieving machine | |
CN209083038U (en) | A kind of building-supporting device with antidetonation pooling feature | |
CN204286919U (en) | A kind of stacked shear model box of novel test soil-pile dynamic interaction | |
CN207093657U (en) | Novel damping mounting seat | |
CN110847407A (en) | Steel construction building with shock resistance | |
CN207999426U (en) | Fixing mechanism and washing machine | |
CN206448515U (en) | A kind of concrete foundation building iron template | |
CN208501951U (en) | A kind of civil engineering antishock device | |
CN107724440A (en) | A kind of novel combination type damper and construction method for high-rise building | |
CN205688625U (en) | A kind of glass curtain wall shockproof structure | |
CN104088368A (en) | Damping and shock insulating bidirectional spherical support | |
CN210562760U (en) | Anti-seismic base structure of steel frame energy-saving house building | |
CN207110610U (en) | A kind of building damping device | |
CN209244124U (en) | A kind of assembled architecture precast stair | |
CN206816748U (en) | Building vibration equipment vibration absorber |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 Termination date: 20201229 |