CN214695632U - Auxiliary inclined supporting device for ultra-deep foundation pit - Google Patents
Auxiliary inclined supporting device for ultra-deep foundation pit Download PDFInfo
- Publication number
- CN214695632U CN214695632U CN202022713568.1U CN202022713568U CN214695632U CN 214695632 U CN214695632 U CN 214695632U CN 202022713568 U CN202022713568 U CN 202022713568U CN 214695632 U CN214695632 U CN 214695632U
- Authority
- CN
- China
- Prior art keywords
- plate
- supporting
- block
- sliding
- fixing
- 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
- 230000008093 supporting effect Effects 0.000 title claims abstract description 88
- 230000003014 reinforcing effect Effects 0.000 claims description 32
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model relates to a excavation supporting technology field, concretely relates to supplementary slope supporting device of ultra-deep foundation ditch, including strutting the bottom plate, the top one side of strutting the bottom plate is connected with the support curb plate, the top surface of strutting the curb plate articulates there is the dead lever, and the dead lever keeps away from the one end of strutting the bottom plate and strut the curb plate side surface and articulate mutually, the internally mounted of strutting the bottom plate has a fixed establishment, fixed establishment includes the knob, and the knob setting is in the top of strutting the bottom plate. The utility model discloses a be provided with first fixed block, the knob of wrench movement makes dwang pivoted when sliding downwards to make first fixed block gliding enter into the ground bottom, thereby make and strut that fixed more stable between bottom plate and the ground, can make this moment strut the curb plate and contradict the ground lateral wall, for it provides the holding power, avoid causing the condition of foundation ditch slope to take place to a certain extent, make the foundation ditch more stable, the people of being convenient for carry out follow-up use.
Description
Technical Field
The utility model relates to a excavation supporting technology field specifically is an auxiliary slope supporting device of ultra-deep foundation ditch.
Background
With the promotion of national economic level, most of young people can go to big city and develop, and in the face of the increase of city population, the building trade has just so risen along with it, in order to guarantee more stable of building construction, generally all regard as the foundation ditch of building for digging a pit before the construction, guarantee the stable construction of building, nevertheless because construction period is generally longer, consequently need use foundation ditch supporting device to avoid the foundation ditch slope to collapse and influence work.
The existing foundation pit supporting mode is generally row pile curtain wall supporting, continuous wall supporting, sheet pile supporting and the like, when supporting work is carried out, the workload of workers can be increased due to the fact that tools needing to be taken are large, meanwhile, the existing foundation pit supporting mode is generally that the existing foundation pit supporting mode is embedded into the ground, recycling can be not easily achieved, the use cost of raw materials is increased, waste is caused, and therefore the ultra-deep foundation pit auxiliary inclined supporting device is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an ultra-deep foundation ditch auxiliary slope supporting device to it generally is row pile curtain wall support, continuous wall is strutted and sheet pile is strutted etc. to propose current excavation supporting mode among the above-mentioned background art, when strutting the during operation, the more work load that increases the workman of instrument that probably leads to needing to take, excavation supporting that current simultaneously generally all is with its embedding ground, probably leads to difficult recycle, increase the use cost of raw and other materials, cause extravagant problem.
In order to achieve the above object, the utility model provides a following technical scheme: an ultra-deep foundation pit auxiliary inclined supporting device comprises a supporting bottom plate, wherein one side of the top end of the supporting bottom plate is connected with a supporting side plate, the top surface of the supporting side plate is hinged with a fixed rod, one end, away from the supporting bottom plate, of the fixed rod is hinged with the side surface of the supporting side plate, a fixing mechanism is arranged inside the supporting bottom plate and comprises a knob, the knob is arranged above the top end of the supporting bottom plate, one side of the knob is connected with a connecting block, one end, away from the knob, of the connecting block is connected with a connecting shaft, one end, away from the connecting block, of the connecting shaft is connected with a conical gear set, a rotating rod is inserted into the conical gear set, one side of the supporting side plate is connected with a sliding sleeve, the sliding sleeve is sleeved on the outer surface of the rotating rod, the bottom end of the rotating rod penetrates through the supporting bottom plate and is connected with a first fixed block, and a reinforcing mechanism is arranged inside the supporting side plate, the reinforcing mechanism comprises a reinforcing plate, the reinforcing plate is inserted in the supporting side plate, a fixing cabin is arranged in the reinforcing plate, a spring plate is arranged in the fixing cabin, and both ends of the elastic sheet are connected with sliding blocks, one end of each sliding block, which is far away from the elastic sheet, is connected with a clamping block, one end of the clamping block, which is far away from the sliding block, penetrates through the fixing cabin and is inserted into the supporting side plate, one side of the sliding block is connected with a connecting rod, the connecting rod penetrates through the fixed cabin and the reinforcing plate and extends to the outside of the reinforcing plate, one end of the connecting rod, which is far away from the sliding block, is connected with a pressing plate, one side of the pressing plate is connected with a spring, and one end of the spring far away from the pressure plate is connected with a fixed plate, one end of the fixed plate close to the reinforcing plate is connected with a pulling plate, and the two ends of the pulling plate are sleeved on the outer surface of the connecting rod, and one end of the reinforcing plate, which is far away from the pulling plate, is connected with a second fixing block.
Preferably, the surface of the knob is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-skid lines.
Preferably, the surface of dwang is provided with the external screw thread, the inside of sliding sleeve is provided with the internal thread, the sliding sleeve links to each other with the dwang adaptation.
Preferably, the surfaces of the first fixing block and the second fixing block are tapered.
Preferably, the inner wall of the fixed cabin is provided with a sliding groove, two ends of the sliding block are connected with sliding blocks, and the sliding blocks are connected with the fixed cabin in a sliding mode.
Preferably, the surface of the clamping block is an inclined plane, a notch is formed in the supporting side plate, and the notch is matched with the clamping block.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this supplementary slope supporting device of ultra-deep foundation ditch, through being provided with first fixed block, the knob of wrench movement, make bevel gear group drive the dwang and rotate, fixed mounting through the slip cap this moment, can make dwang pivoted while slide downwards, thereby make first fixed block gliding enter into the ground bottom, thereby it is more stable to make to strut to fix between bottom plate and the ground, can make and strut the curb plate and contradict the ground lateral wall this moment, for it provides the holding power, avoid causing the condition emergence of foundation ditch slope to a certain extent, make the foundation ditch more stable, the people of being convenient for carry out follow-up use.
2. The device is provided with a second fixed block, enters the supporting side plate through the reinforcing plate, and under the action of the elastic sheet, the elastic sheet drives the clamping block to enter the notch formed in the supporting side plate through the sliding block, so that the reinforcing plate drives the second fixed block to penetrate through the supporting side plate and be inserted into the side wall of the foundation pit, so that the foundation pit supporting side plate can fix the foundation pit more stably, the foundation pit can be protected more stably, the possibility of inclination of the foundation pit is reduced, and then the pressing plate is extruded, under the action of the self-force of the spring, the connecting rod can drive the sliding block to slide, so that the clamping block enters the fixed cabin, the reinforcing plate can drive the second fixed block to slide outwards, and then the knob is reversely twisted, the device can be detached, so that the device can be recycled when the foundation pit is conveniently subjected to subsequent operation, and the waste of resources is avoided to a certain extent.
Drawings
FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;
fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention;
FIG. 3 is a schematic side view of the structure of the present invention;
fig. 4 is a schematic top view of the structure of the present invention.
In the figure: 1. supporting a bottom plate; 2. supporting a side plate; 3. fixing the rod; 4. a fixing mechanism; 41. a knob; 42. connecting blocks; 43. a connecting shaft; 44. a bevel gear set; 45. rotating the rod; 46. a sliding sleeve; 47. a first fixed block; 5. a reinforcement mechanism; 51. a reinforcing plate; 52. a fixed cabin; 53. a spring plate; 54. a slider; 55. a clamping block; 56. a connecting rod; 57. pressing a plate; 58. a spring; 59. a fixing plate; 510. pulling a plate; 511. and a second fixed block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: an auxiliary inclined supporting device for an ultra-deep foundation pit comprises a supporting bottom plate 1, a supporting side plate 2 is connected to one side of the top end of the supporting bottom plate 1, a fixing rod 3 is hinged to the surface of the top end of the supporting side plate 2, one end, far away from the supporting bottom plate 1, of the fixing rod 3 is hinged to the side surface of the supporting side plate 2, a fixing mechanism 4 is installed inside the supporting bottom plate 1, the fixing mechanism 4 comprises a knob 41, the knob 41 is arranged above the top end of the supporting bottom plate 1, a connecting block 42 is connected to one side of the knob 41, a connecting shaft 43 is connected to one end, far away from the knob 41, of the connecting shaft 42, a bevel gear set 44 is connected to one end, far away from the connecting block 42, of the bevel gear set 44 is internally inserted with a rotating rod 45, a sliding sleeve 46 is connected to one side of the supporting side plate 2, the sliding sleeve 46 is sleeved on the outer surface of the rotating rod 45, the bottom end of the rotating rod 45 penetrates through the supporting bottom plate 1 and is connected with a first fixing block 47, the reinforcing mechanism 5 is installed inside the supporting side plate 2, the reinforcing mechanism 5 comprises a reinforcing plate 51, the reinforcing plate 51 is inserted inside the supporting side plate 2, a fixing cabin 52 is arranged inside the reinforcing plate 51, an elastic sheet 53 is installed inside the fixing cabin 52, two ends of the elastic sheet 53 are connected with sliding blocks 54, one end of each sliding block 54 far away from the corresponding elastic sheet 53 is connected with a fixture block 55, one end of each fixture block 55 far away from the corresponding sliding block 54 penetrates through the corresponding fixing cabin 52 and is inserted inside the supporting side plate 2, one side of each sliding block 54 is connected with a connecting rod 56, the connecting rod 56 penetrates through the corresponding fixing cabin 52 and the corresponding reinforcing plate 51 and extends to the outside of the corresponding reinforcing plate 51, one end of each connecting rod 56 far away from the corresponding sliding block 54 is connected with a pressing plate 57, one side of each pressing plate 57 is connected with a spring 58, one end of each spring 58 far away from the corresponding pressing plate 57 is connected with a fixing plate 59, one end of each fixing plate 59 close to the corresponding reinforcing plate 51 is connected with a pulling plate 510, and both ends of the pulling plate 510 are sleeved on the outer surface of the connecting rod 56, and one end of the reinforcing plate 51 far away from the pulling plate 510 is connected with a second fixing block 511.
Further, the surface of knob 41 is provided with the rubber sleeve, and the surface of rubber sleeve is provided with anti-skidding line, when staff wrench movement knob 41, through the installation of knob 41 surface rubber sleeve, can make knob 41 pivoted more stable to can make connecting block 42 drive the stable rotation of connecting axle 43, be convenient for carry out follow-up operation and use.
Further, the surface of dwang 45 is provided with the external screw thread, the inside of sliding sleeve 46 is provided with the internal thread, sliding sleeve 46 links to each other with dwang 45 adaptation, when knob 41 drives bevel gear 44 and rotates, can make bevel gear 44 inside dwang 45 of pegging graft rotate, fixed mounting through sliding sleeve 46 and support curb plate 2 this moment, and sliding sleeve 46 cover establishes at dwang 45 surface, thereby can make dwang 45 slide downwards in the pivoted, be convenient for dwang 45 drive first fixed block 47 when sliding downwards, make and strut bottom plate 1 and ground snap-on more stable.
Further, the surfaces of the first fixing block 47 and the second fixing block 511 are all set to be conical, slide downwards along with the rotation of the rotating rod 45, the rotating rod 45 can be made to drive the first fixing block 47 to slide downwards, the conical design of the surface of the first fixing block 47 can be made to be more stable when sliding downwards, the fixing effect of the device on the first fixing block 47 is facilitated, meanwhile, the second fixing block 511 is pushed through the reinforcing plate 51, through the conical design of the surface of the second fixing block 511, the second fixing block 511 can be made to be smoother when being inserted into the side wall of the foundation pit, the fixing effect of the second fixing block 511 on the supporting side plate 2 is facilitated, and the device is made to be more stable.
Furthermore, the inner wall of the fixed cabin 52 is provided with a sliding groove, the two ends of the sliding block 54 are connected with sliding blocks, the sliding block 54 is in sliding connection with the fixed cabin 52, the connecting rod 56 is pushed, the sliding block 54 slides through the fixed connection of the connecting rod 56 and the sliding block 54, and at the moment, the sliding block 54 is more stable when sliding through the sliding arrangement of the inner wall of the fixed cabin 52.
Further, fixture block 55's surface sets up to the inclined plane, support 2 inside notches of having seted up of curb plate, and notch and fixture block 55 looks adaptation, when fixture block 55 enters into and supports 2 inside of curb plate, through supporting the seting up of 2 inside notches of curb plate, can make fixture block 55 fixed more stable, simultaneously through the design of fixture block 55 surface inclined plane, card in the notch when can making fixture block 55 come in, the effectual condition of avoiding causing fixture block 55 self-sliding to go out takes place, increase the stability between device and the foundation ditch, make the device more stable to the fixed of foundation ditch.
The working principle is as follows: when the supporting device is installed, according to the attached drawings 1, 2, 3 and 4, the supporting bottom plate 1 is placed on the ground to enable the supporting side plate 2 to be abutted against the side wall of the foundation pit, the knob 41 is twisted to enable the connecting block 42 to drive the bevel gear set 44 to rotate through the connecting shaft 43, at the moment, the rotating rod 45 can be rotated, because the sliding sleeve 46 is fixedly arranged and the sliding sleeve 46 is sleeved on the surface of the rotating rod 45, the rotating rod 45 can slide while rotating, thereby driving the first fixing block 47 to slide downwards, at this time, the first fixing block 47 can enter the mud pit at the bottom end of the foundation pit, and along with the sliding downwards of the first fixing block 47, the fixing between the supporting bottom plate 1 and the foundation pit can be more stable, at the moment, under the supporting action of the fixing rod 3, can make and strut 2 conflict more stable to the lateral wall of curb plate, the effectual condition of placing the lateral wall slope takes place.
Subsequently, by pressing the fixing plate 59, the fixing plate 59 and the pulling plate 510 can drive the reinforcing plate 51 to slide towards the inside of the supporting side plate 2, along with the continuous sliding of the reinforcing plate 51, the second fixing block 511 can enter the side wall of the foundation pit, then, the second fixing block 511 and the fixture block 55 enter the supporting side plate 2, under the action of the elastic sheet 53, the fixture block 55 can enter the fixing cabin 52, when the fixture block 55 reaches the supporting side plate 2 and is provided with a notch, the fixture block 55 can be separated from the fixing cabin 52 and enter the notch, at the moment, under the action of the inclined surface of the fixture block 55, the fixture block 55 can drive the reinforcing plate 51 to be clamped inside the supporting side plate 2, the reinforcing plate 51 can drive the second fixing block 511 to be stably inserted into the side wall of the foundation pit, the supporting effect of the supporting side plate 2 on the foundation pit is more stable, and the occurrence of the condition of foundation pit inclination is reduced.
When follow-up foundation ditch adds man-hour, through reverse twist knob 41, can make dwang 45 drive first fixed block 47 reverse slip, thereby can make first fixed block 47 break away from the foundation ditch bottom, meanwhile, through pressing down clamp plate 57, under the spring action of spring 58 self, can make connecting rod 56 drive sliding block 54 and slide, thereby make sliding block 54 drive fixture block 55 break away from and strut 2 notches of curb plate, make gusset plate 51 can break away from out from the foundation ditch lateral wall, can take the device off this moment, can retrieve the device when being convenient for the foundation ditch carries out follow-up processing, the waste of cost is reduced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides an auxiliary slope supporting device of ultra-deep foundation ditch, includes supporting bottom plate (1), its characterized in that: the supporting device is characterized in that one side of the top end of the supporting base plate (1) is connected with a supporting side plate (2), the top end surface of the supporting side plate (2) is hinged with a fixing rod (3), one end, far away from the supporting base plate (1), of the fixing rod (3) is hinged with the side surface of the supporting side plate (2), the supporting base plate (1) is internally provided with a fixing mechanism (4), the fixing mechanism (4) comprises a knob (41), the knob (41) is arranged above the top end of the supporting base plate (1), one side of the knob (41) is connected with a connecting block (42), one end, far away from the knob (41), of the connecting block (42) is connected with a connecting shaft (43), one end, far away from the connecting block (42), of the connecting shaft (43) is connected with a conical gear set (44), a rotating rod (45) is inserted into the conical gear set (44), one side of the supporting side plate (2) is connected with a sliding sleeve (46), the sliding sleeve (46) is sleeved on the outer surface of the rotating rod (45), the bottom end of the rotating rod (45) penetrates through the supporting bottom plate (1) and is connected with a first fixing block (47), a reinforcing mechanism (5) is installed inside the supporting side plate (2), the reinforcing mechanism (5) comprises a reinforcing plate (51), the reinforcing plate (51) is inserted into the supporting side plate (2), a fixing cabin (52) is formed inside the reinforcing plate (51), an elastic sheet (53) is installed inside the fixing cabin (52), two ends of the elastic sheet (53) are connected with sliding blocks (54), one end, far away from the elastic sheet (53), of each sliding block (54) is connected with a clamping block (55), one end, far away from the sliding block (54), of each clamping block (55) penetrates through the fixing cabin (52) and is inserted into the supporting side plate (2), one side of each sliding block (54) is connected with a connecting rod (56), and connecting rod (56) run through fixed cabin (52) and gusset plate (51) and extend to the outside of gusset plate (51), the one end that sliding block (54) were kept away from in connecting rod (56) is connected with clamp plate (57), and one side of clamp plate (57) is connected with spring (58), and the one end that clamp plate (57) were kept away from in spring (58) is connected with fixed plate (59), the one end that fixed plate (59) are close to gusset plate (51) is connected with arm-tie (510), and the both ends cover of arm-tie (510) are established at the surface of connecting rod (56), the one end that gusset plate (51) kept away from arm-tie (510) is connected with second fixed block (511).
2. The auxiliary inclined supporting device for the ultra-deep foundation pit according to claim 1, wherein: the surface of the knob (41) is provided with a rubber sleeve, and the surface of the rubber sleeve is provided with anti-skid lines.
3. The auxiliary inclined supporting device for the ultra-deep foundation pit according to claim 1, wherein: the surface of dwang (45) is provided with the external screw thread, the inside of sliding sleeve (46) is provided with the internal thread, sliding sleeve (46) link to each other with dwang (45) adaptation.
4. The auxiliary inclined supporting device for the ultra-deep foundation pit according to claim 1, wherein: the surfaces of the first fixed block (47) and the second fixed block (511) are both provided with a conical shape.
5. The auxiliary inclined supporting device for the ultra-deep foundation pit according to claim 1, wherein: the inner wall of the fixed cabin (52) is provided with a sliding groove, two ends of the sliding block (54) are connected with sliding blocks, and the sliding block (54) is connected with the fixed cabin (52) in a sliding mode.
6. The auxiliary inclined supporting device for the ultra-deep foundation pit according to claim 1, wherein: the surface of the clamping block (55) is an inclined plane, a notch is formed in the supporting side plate (2), and the notch is matched with the clamping block (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022713568.1U CN214695632U (en) | 2020-11-20 | 2020-11-20 | Auxiliary inclined supporting device for ultra-deep foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022713568.1U CN214695632U (en) | 2020-11-20 | 2020-11-20 | Auxiliary inclined supporting device for ultra-deep foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214695632U true CN214695632U (en) | 2021-11-12 |
Family
ID=78523644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022713568.1U Expired - Fee Related CN214695632U (en) | 2020-11-20 | 2020-11-20 | Auxiliary inclined supporting device for ultra-deep foundation pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214695632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250792A (en) * | 2022-01-07 | 2022-03-29 | 河南中原岩土工程有限公司 | Deep foundation pit supporting device with alarming function |
-
2020
- 2020-11-20 CN CN202022713568.1U patent/CN214695632U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250792A (en) * | 2022-01-07 | 2022-03-29 | 河南中原岩土工程有限公司 | Deep foundation pit supporting device with alarming function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214695632U (en) | Auxiliary inclined supporting device for ultra-deep foundation pit | |
| CN210002445U (en) | kinds of manhole cover | |
| CN115075163A (en) | Road engineering prevents moving roadblock | |
| CN212706506U (en) | Aluminum formwork dismantling tool | |
| CN214574158U (en) | Municipal drainage ditch inspection shaft lid | |
| CN213906266U (en) | Can carry out spacing prefabricated cable cover plate structure to cable | |
| CN210092838U (en) | Cable plugging device convenient to install | |
| CN208385722U (en) | A kind of water-tight device of charging gun | |
| CN213897170U (en) | Slope reinforcing apparatus for water conservancy construction | |
| CN211922796U (en) | Excavator boundary beam structure | |
| CN217097401U (en) | Paster location frock | |
| CN214627255U (en) | Embedded network switch | |
| CN212612886U (en) | Building construction waste water collection device | |
| CN218204635U (en) | Shallow hole moat trench excavating gear step by step | |
| CN220599037U (en) | Simple device for mud scraping plate | |
| CN217105229U (en) | Decorate well lid convenient to splice with ceramic tile | |
| CN220147175U (en) | Fixing device of charging pile | |
| CN219863558U (en) | Environment-friendly building curtain wall | |
| CN218725984U (en) | Detection apparatus for be used for building waterproof material tear strength | |
| CN211007755U (en) | Connecting mechanism of supporting frame for repairing ancient buildings | |
| CN211366889U (en) | Equipment for opening well lid of northern winter municipal facility | |
| CN214169380U (en) | Drainage well lid protection reinforced structure | |
| CN217783552U (en) | Safety support structure for coal mine tunneling | |
| CN216788278U (en) | Construction machinery slotting device | |
| CN217105087U (en) | Fixing structure for piling in constructional engineering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |