CN213897157U - Foundation ditch support of preventing collapsing for civil engineering - Google Patents
Foundation ditch support of preventing collapsing for civil engineering Download PDFInfo
- Publication number
- CN213897157U CN213897157U CN202022984415.0U CN202022984415U CN213897157U CN 213897157 U CN213897157 U CN 213897157U CN 202022984415 U CN202022984415 U CN 202022984415U CN 213897157 U CN213897157 U CN 213897157U
- Authority
- CN
- China
- Prior art keywords
- plate
- reinforcing
- fixing frame
- foundation pit
- civil engineering
- 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
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 60
- 230000002265 prevention Effects 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000005728 strengthening Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 3
- 230000002633 protecting effect Effects 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 2
- 208000033641 Ring chromosome 5 syndrome Diseases 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Sewage (AREA)
Abstract
The utility model discloses a foundation pit collapse prevention bracket for civil engineering, which comprises a left fixing frame and a reinforcing device, solves the problems of small contact area and poor protection of the collapse prevention bracket by arranging a reinforcing plate, a regulating plate, a slide block, a slide groove, a long screw rod and a shell, realizes the expansion of the contact area of the collapse prevention bracket and the foundation pit by moving out the regulating plate through the drive of the slide block when in use, thereby achieving the advantages of enlarging the protection area of the anti-collapse support and strengthening the reinforcing effect, solving the problem of small application range of the reinforcing device through the connecting plate, the connecting shaft, the short screw rod, the worm wheel, the worm and the fixing plate, realizing the driving and adjusting activities of the reinforcing plate under the driving of the movement of the connecting shaft when in use, through gusset plate angle modulation, realize the increase of gusset plate application range to the advantage that has reached increase reinforcing apparatus application range.
Description
Technical Field
The utility model particularly relates to a support that collapses is prevented to foundation ditch for civil engineering relates to the relevant field of civil engineering.
Background
During civil engineering construction, generally, foundation construction is firstly carried out to serve as a foundation of the building, the stability of the building is guaranteed, a foundation pit is excavated before the foundation construction, hydrological and geological conditions of an excavation part of the foundation pit are considered, if the soil quality of the wall of the foundation pit is unstable and underground water influences exist, the wall of the foundation pit must be supported, the side slope collapse is prevented, and the conventional foundation pit supporting mode adopts collapse-preventing supports to realize the integral stable supporting and protecting activities of the foundation pit.
At present when carrying out the use of foundation ditch anti-collapse support, the mount that anti-collapse support set up, the fastening of laminating mutually with the foundation ditch top left and right sides usually, but the mount is whole to be rectangular form to make little with the area of contact of foundation ditch, the firm of difficult fine assurance foundation ditch inner wall, thereby the foundation ditch still takes place the activity of collapsing easily under the influence of external environment.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above-mentioned not enough, the utility model provides a support that collapses is prevented to foundation ditch for civil engineering here.
The utility model is realized in such a way that the anti-collapse bracket for the foundation pit for civil engineering is constructed, the device comprises a left fixing frame and a reinforcing device, the middle part of the right side of the left fixing frame is fixedly connected with a fixing pipe, the reinforcing device is arranged at the lower ends of the left fixing frame and the right fixing frame, the reinforcing device comprises a reinforcing plate, an adjusting plate, a sliding block, a sliding chute, a long screw, a shell and an angle adjusting mechanism, the reinforcing plate is respectively connected with the lower ends of the left fixing frame and the right fixing frame in a rotating way, an adjusting plate is arranged in the reinforcing plate, the upper end of the right side of the adjusting plate is connected with a sliding block, the sliding block is connected with the inner part of the sliding groove in a sliding manner, the right side of the sliding block is in threaded connection with a long screw rod, the sliding grooves are formed in the front side and the rear side of the inner part of the reinforcing plate, the long screw rod is rotationally connected with the inner part of the shell, and the left side of the shell is welded and fixed with the reinforcing plate, and the angle adjusting mechanism is arranged on the inner side of the upper end of the reinforcing plate.
Preferably, angle adjustment mechanism includes connecting plate, connecting axle, short screw rod, worm wheel, worm and fixed plate, connecting plate one side and gusset plate welded fastening to connecting plate opposite side and connecting axle sliding connection, and the inside and short screw rod threaded connection of connecting axle front end, short screw rod lower extreme is pegged graft fixedly with the worm wheel, the worm wheel rear side is connected with the worm meshing, the worm wheel all sets up inside the fixed plate with the worm to the fixed plate upper end respectively with left mount and right mount welded fastening.
Preferably, the right side of the fixing pipe is connected with the connecting pipe through a connecting ring, the outer surface of the right side of the connecting pipe is fixedly connected with a reinforcing ring, and the right side of the connecting pipe is fixedly connected with the right fixing frame.
Preferably, gusset plate, regulating plate, slider, spout, long screw and shell all follow left and right symmetrical setting of left mount and right mount lower extreme to the regulating plate outside is provided with a plurality of tooth angles.
Preferably, the front side and the rear side of the sliding block are both connected with the inside of the sliding groove in a sliding mode, and the inner wall of the sliding groove is smooth.
Preferably, the lower end of the long screw is provided with a rotating part, and the outer surface of the long screw is provided with an external thread which is in threaded connection with an internal thread arranged inside one side of the sliding block.
Preferably, the connecting plate, the connecting shaft, the short screw, the worm wheel, the worm and the fixing plate are symmetrically arranged along the left and right sides of the lower ends of the left fixing frame and the right fixing frame, and the middle part of the connecting plate is hollow.
Preferably, the sliding connection position of the connecting shaft and the middle part of the connecting plate is hollow and cylindrical, and the threaded connection position of the connecting shaft and the short screw rod is square.
Preferably, the short screw is made of stainless steel.
Preferably, the worm is made of carbon steel.
The utility model has the advantages of as follows: the utility model discloses an improvement provides a support that collapses is prevented to foundation ditch for civil engineering here, compares with equipment of the same type, has following improvement:
the method has the advantages that: a support that collapses is prevented to foundation ditch for civil engineering through setting up gusset plate, regulating plate, slider, spout, long screw rod and shell, has solved the support area of contact that prevents collapsing little, the not good problem of protection, and the regulating plate drives through the slider during use and shifts out, realizes preventing collapsing support and foundation ditch area of contact's expansion to just can reach the expansion of the support area of protection that prevents collapsing and strengthen the advantage of consolidating the effect.
The method has the advantages that: a support that collapses is prevented to foundation ditch for civil engineering through connecting plate, connecting axle, short screw rod, worm wheel, worm and fixed plate, has solved the little problem of reinforcing apparatus application range, and the connecting plate drives down at the removal of connecting axle during the use, realizes the drive regulation activity of gusset plate, through gusset plate angle modulation, realizes the increase of gusset plate application range to reached the advantage that increases reinforcing apparatus application range.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the front cross-sectional structure of the reinforcing apparatus of the present invention;
FIG. 3 is a schematic structural view of a front sectional part of the reinforcing apparatus of the present invention;
FIG. 4 is a schematic structural view of a front section of the angle adjusting mechanism of the present invention;
fig. 5 is a schematic view of a part of the angle adjusting mechanism of the present invention.
Wherein: the device comprises a left fixing frame-1, a fixing tube-2, a connecting ring-3, a connecting tube-4, a reinforcing ring-5, a right fixing frame-6, a reinforcing device-7, a reinforcing plate-71, an adjusting plate-72, a sliding block-73, a sliding chute-74, a long screw rod-75, a shell-76, an angle adjusting mechanism-77, a connecting plate-771, a connecting shaft-772, a short screw rod-773, a worm wheel-774, a worm-775 and a fixing plate-776.
Detailed Description
The present invention will be described in detail with reference to the accompanying fig. 1-5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, 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, the utility model provides a support that collapses is prevented to foundation ditch for civil engineering through the improvement here, including left mount 1 and reinforcing apparatus 7, 1 right side middle part fastening connection of left mount has fixed pipe 2, and fixed pipe 2 right side is connected with connecting pipe 4 through go-between 3, and connecting pipe 4 right side external surface fixed connection has reinforcing ring 5 to connecting pipe 4 right side and right mount 6 fastening connection.
Referring to fig. 2 and 3, the present invention provides a foundation pit collapse prevention support for civil engineering through improvement, a reinforcing device 7 is disposed at lower ends of a left fixing frame 1 and a right fixing frame 6, the reinforcing device 7 includes a reinforcing plate 71, an adjusting plate 72, a slider 73, a sliding chute 74, a long screw 75, a housing 76 and an angle adjusting mechanism 77, the reinforcing plate 71 is rotatably connected with lower ends of the left fixing frame 1 and the right fixing frame 6, the adjusting plate 72 is disposed inside the reinforcing plate 71, the slider 73 is connected with an upper end of a right side of the adjusting plate 72, the slider 73 is slidably connected with an inside of the sliding chute 74, a right side of the slider 73 is in threaded connection with the long screw 75, the sliding chutes 74 are disposed at front and rear sides inside the reinforcing plate 71, the long screw 75 is rotatably connected inside the housing 76, a left side of the housing 76 is welded and fixed with the reinforcing plate 71, the angle adjusting mechanism 77 is disposed inside an upper end of the reinforcing plate 71, gusset plate 71, regulating plate 72, slider 73, spout 74, the symmetrical setting about left mount 1 and right mount 6 lower extreme is all followed to long screw 75 and shell 76, and the regulating plate 72 outside is provided with a plurality of tooth angles, make the firm effect of contact of further strengthening regulating plate 72 and foundation ditch both sides, both sides all with the inside sliding connection of spout 74 around the slider 73, and spout 74 inner wall is smooth form, make slider 73 smooth not block when reciprocating the activity, long screw 75 lower extreme is provided with the rotation department, and long screw 75 surface is provided with the external screw thread and the inside internal thread threaded connection of seting up in slider 73 one side, make the length adjustment activity of realizing regulating plate 72 through long screw 75 and slider 73 threaded connection.
Referring to fig. 4 and 5, the present invention provides a foundation pit collapse prevention support for civil engineering through improvement, wherein the angle adjustment mechanism 77 includes a connection plate 771, a connection shaft 772, a short screw 773, a worm wheel 774, a worm 775 and a fixing plate 776, one side of the connection plate 771 is welded and fixed to the reinforcing plate 71, the other side of the connection plate 771 is slidably connected to the connection shaft 772, the inside of the front end of the connection shaft 772 is in threaded connection with the short screw 773, the lower end of the short screw 773 is inserted and fixed to the worm wheel 774, the rear side of the worm wheel 774 is engaged and connected to the worm 775, the worm wheel 774 and the worm 775 are both disposed inside the fixing plate 776, the upper end of the fixing plate 776 is welded and fixed to the left fixing frame 1 and the right fixing frame 6 respectively, the connection plate 771, the connection shaft 772, the short screw 773, the worm wheel 774, the worm 775 and the fixing plate 776 are both disposed along the left and right fixing frame 6 lower ends of the left fixing frame and the left and right fixing frame, and right fixing frame 6, and the middle of the connection plate 771 are hollow, the connecting plate 771 can better move along with the connecting shaft 772 to achieve angle adjustment movement, the hollow sliding connection position between the connecting shaft 772 and the connecting plate 771 is cylindrical, the threaded connection position between the connecting shaft 772 and the short screw 773 is square, driving movement of the connecting plate 771 is achieved through better matching of the connecting shaft 772, the short screw 773 is made of stainless steel, and the worm 775 is made of carbon steel.
The utility model provides a foundation pit collapse prevention bracket for civil engineering through improvement, which operates as follows;
firstly, a fixed pipe 2 is fixedly connected with a connecting pipe 4 through a connecting ring 3 arranged on the right side, then a left fixing frame 1 and a right fixing frame 6 are respectively and fixedly connected with the upper ends of the left side and the right side of a foundation pit, and finally the two sides of the connected fixed pipe 2 and the connecting pipe 4 are respectively and fixedly connected with the left fixing frame 1 and the right fixing frame 6, so that the whole installation and use activities of the anti-collapse support can be completed, and under the mutual matching and fastening of the left fixing frame 1, the right fixing frame 6, the fixed pipe 2 and the connecting pipe 4, the support and protection of the foundation pit can be realized, and the collapse activity of the foundation pit is avoided;
secondly, when the foundation pit collapse prevention support is used, the fixing frame arranged on the collapse prevention support is generally attached and fastened to the left side and the right side of the top of the foundation pit, but the fixing frame is integrally in a long strip shape, so that the contact area of the fixing frame and the foundation pit is small, the stability of the inner wall of the foundation pit is not easily guaranteed well, and collapse movement of the foundation pit is easy to occur under the influence of the external environment;
thirdly, by providing the reinforcing means 7 at the lower ends of the left and right fixing frames 1 and 6, first when the left and right fixing frames 1 and 6 are coupled to the foundation pit, the user can rotate the long screw 75 connected with the inside of the shell 76, so that the long screw 75 rotates to drive the slide block 73 connected with the upper end thread to move downwards along the slide grooves 74 arranged at the front side and the rear side inside the reinforcing plate 71, with the downward movement of the sliding block 73, the adjusting plate 72 connected with one side of the sliding block 73 can move downward out of the reinforcing plate 71 to enlarge the supporting and protecting area and ensure the protecting area of the anti-collapse support, then, after the left fixing frame 1 and the right fixing frame 6 are connected and fixed with the foundation pit, in order to ensure that the adjusting plate 72 is firmly contacted with the foundation pit, a plurality of tooth angles are arranged on the outer side of the adjusting plate 72 at equal intervals to be stably connected with the foundation pit in an inserting manner, so that the advantages of expanding the protection area of the anti-collapse support and strengthening the reinforcement effect can be achieved;
fourthly, in order to make the range of use of the reinforcing apparatus 7 more flexible, by further providing the angle adjusting mechanism 77 inside the upper end of the reinforcing plate 71, first when the angle adjustment of the reinforcing plate 77 is required, the user only needs to rotate the worm 775 arranged in the lower end of the fixing plate 776, so that the worm 775 rotates to drive the worm wheel 774 in meshed connection with the front end to rotate, the short screw 773 connected in the worm wheel 774 drives the connecting shaft 772 in threaded connection with the upper end to move upwards along with the rotation of the worm wheel 774, then the connecting plate 771 which is connected in a sliding way at the back side of the connecting shaft 772 moves upwards along with the upward movement of the connecting shaft 772 so as to realize the inclined driving movement, the reinforcement plate 71 then effects the angular adjustment movement, and when the rotation of the worm 775 is stopped, the worm 775 and the worm wheel 774 realize self-locking movement, and the stability after angle adjustment is ensured, so that the advantage of enlarging the application range of the reinforcing device 7 is achieved.
The utility model provides a foundation pit collapse prevention bracket for civil engineering through improvement, which solves the problems of small contact area and poor protection of the collapse prevention bracket by arranging a reinforcing plate 71, an adjusting plate 72, a slide block 73, a slide groove 74, a long screw 75 and a shell 76, the adjusting plate 72 is driven by the slide block 73 to move out when in use, so as to realize the expansion of the contact area of the collapse prevention bracket and the foundation pit, therefore, the advantages of expanding the protection area of the collapse prevention support and strengthening the reinforcing effect can be achieved, the problem of small application range of the reinforcing device 7 is solved through the connecting plate 771, the connecting shaft 772, the short screw 773, the worm wheel 774, the worm 775 and the fixing plate 776, when the reinforcing device is used, the connecting plate 771 is driven by the connecting shaft 772 to realize the driving and adjusting movement of the reinforcing plate 71, the angle of the reinforcing plate 71 is adjusted, so that the application range of the reinforcing plate 71 is enlarged, and the advantage of enlarging the application range of the reinforcing device 7 is achieved.
Claims (8)
1. A foundation pit collapse prevention support for civil engineering comprises a left fixing frame (1), wherein a fixing pipe (2) is fixedly connected to the middle part of the right side of the left fixing frame (1);
the method is characterized in that: the fixing device comprises a left fixing frame (1) and a right fixing frame (6), and is characterized by further comprising a reinforcing device (7), wherein the reinforcing device (7) is arranged at the lower end of the left fixing frame (1) and the lower end of the right fixing frame (6), the reinforcing device (7) comprises a reinforcing plate (71), an adjusting plate (72), a sliding block (73), a sliding groove (74), a long screw (75), a shell (76) and an angle adjusting mechanism (77), the reinforcing plate (71) is respectively in rotating connection with the lower ends of the left fixing frame (1) and the right fixing frame (6), the adjusting plate (72) is arranged inside the reinforcing plate (71), the upper end of the right side of the adjusting plate (72) is connected with the sliding block (73), the sliding block (73) is in sliding connection with the inside of the sliding groove (74), the right side of the sliding block (73) is in threaded connection with the long screw (75), the sliding groove (74) is arranged at the front side and the back side inside of the reinforcing plate (71), the long screw (75) is rotatably connected inside the shell (76), and the left side of the shell (76) is welded and fixed with the reinforcing plate (71), and the angle adjusting mechanism (77) is arranged on the inner side of the upper end of the reinforcing plate (71).
2. The foundation pit collapse prevention support for civil engineering as claimed in claim 1, wherein: angle adjustment mechanism (77) include connecting plate (771), connecting axle (772), short screw rod (773), worm wheel (774), worm (775) and fixed plate (776), connecting plate (771) one side and gusset plate (71) welded fastening, and connecting plate (771) opposite side and connecting axle (772) sliding connection, and connecting axle (772) front end inside and short screw rod (773) threaded connection, short screw rod (773) lower extreme is pegged graft fixedly with worm wheel (774), worm wheel (774) rear side is connected with worm (775) meshing, worm wheel (774) and worm (775) all set up inside fixed plate (776), and fixed plate (776) upper end respectively with left mount (1) and right mount (6) welded fastening.
3. The foundation pit collapse prevention support for civil engineering as claimed in claim 1, wherein: the right side of the fixed pipe (2) is connected with the connecting pipe (4) through the connecting ring (3), the outer surface of the right side of the connecting pipe (4) is fixedly connected with the reinforcing ring (5), and the right side of the connecting pipe (4) is fixedly connected with the right fixing frame (6).
4. The foundation pit collapse prevention support for civil engineering as claimed in claim 1, wherein: reinforcing plate (71), regulating plate (72), slider (73), spout (74), long screw (75) and shell (76) all follow left mount (1) and right mount (6) lower extreme left and right symmetry setting to regulating plate (72) outside is provided with a plurality of tooth angles.
5. The foundation pit collapse prevention support for civil engineering as claimed in claim 1, wherein: the front side and the rear side of the sliding block (73) are both connected with the inside of the sliding groove (74) in a sliding mode, and the inner wall of the sliding groove (74) is smooth.
6. The foundation pit collapse prevention support for civil engineering as claimed in claim 1, wherein: the lower end of the long screw rod (75) is provided with a rotating part, and the outer surface of the long screw rod (75) is provided with an external thread which is in threaded connection with an internal thread arranged inside one side of the sliding block (73).
7. The foundation pit collapse prevention support for civil engineering as claimed in claim 2, wherein: the connecting plate (771), the connecting shaft (772), the short screw (773), the worm wheel (774), the worm (775) and the fixing plate (776) are symmetrically arranged along the left and right sides of the lower ends of the left fixing frame (1) and the right fixing frame (6), and the middle of the connecting plate (771) is hollow.
8. The foundation pit collapse prevention support for civil engineering as claimed in claim 2, wherein: the middle parts of the connecting shaft (772) and the connecting plate (771) are in a hollow sliding connection and are in a cylindrical shape, and the threaded connection part of the connecting shaft (772) and the short screw rod (773) is in a square shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022984415.0U CN213897157U (en) | 2020-12-10 | 2020-12-10 | Foundation ditch support of preventing collapsing for civil engineering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202022984415.0U CN213897157U (en) | 2020-12-10 | 2020-12-10 | Foundation ditch support of preventing collapsing for civil engineering |
Publications (1)
Publication Number | Publication Date |
---|---|
CN213897157U true CN213897157U (en) | 2021-08-06 |
Family
ID=77102637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202022984415.0U Expired - Fee Related CN213897157U (en) | 2020-12-10 | 2020-12-10 | Foundation ditch support of preventing collapsing for civil engineering |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN213897157U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115030176A (en) * | 2022-06-10 | 2022-09-09 | 成都建工第三建筑工程有限公司 | Symmetric nailing device for underground space extension |
-
2020
- 2020-12-10 CN CN202022984415.0U patent/CN213897157U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115030176A (en) * | 2022-06-10 | 2022-09-09 | 成都建工第三建筑工程有限公司 | Symmetric nailing device for underground space extension |
CN115030176B (en) * | 2022-06-10 | 2022-12-20 | 成都建工第三建筑工程有限公司 | Symmetric nailing device for underground space expansion |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN213897157U (en) | Foundation ditch support of preventing collapsing for civil engineering | |
CN210163914U (en) | Geotechnical engineering foundation pit collapse prevention supporting structure | |
CN221167823U (en) | Reinforced steel sheet pile foundation pit | |
CN214005690U (en) | Inner supporting structure for foundation pit | |
CN217267431U (en) | Slope anchor for building municipal works | |
CN215829438U (en) | Supporting device for house building foundation | |
CN216339603U (en) | Foundation ditch slope prevents stock that collapses for construction | |
CN209798662U (en) | Hydraulic dam for river channel with dam height easy to adjust | |
CN221142660U (en) | Narrow river construction barricade reinforced structure | |
CN217997955U (en) | Reinforcing apparatus that flood prevention wall construction was used | |
CN220686816U (en) | Adjustable support frame for building construction | |
CN216617527U (en) | Loess tunnel excavation preliminary bracing structure | |
CN218479595U (en) | Building structure reinforcing and connecting device | |
CN217601456U (en) | Deep foundation pit supporting beam frame structure for geotechnical engineering | |
CN214194372U (en) | Water conservancy dyke increases breakwater device | |
CN220059609U (en) | Hydraulic engineering construction is with excavation anti-collapse device | |
CN216689427U (en) | Strutting arrangement that foundation ditch construction was used | |
CN219732028U (en) | Foundation pit compacting and filling structure | |
CN109281312A (en) | A kind of novel U-shaped steel sheet pile ground-connecting-wall | |
CN217150274U (en) | Foundation pit collapse prevention supporting device | |
CN219909052U (en) | Water conservancy retaining wall | |
CN221589672U (en) | Underground diaphragm wall joint device | |
CN218813761U (en) | Underground construction prevents supporting construction that collapses | |
CN221589620U (en) | Assembled foundation pit support | |
CN218509497U (en) | Be used for shield to construct reinforced (rfd) mobile device of slip casting |
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: 20210806 |
|
CF01 | Termination of patent right due to non-payment of annual fee |