CN219793674U - Guide rail for bridge pier column construction - Google Patents
Guide rail for bridge pier column construction Download PDFInfo
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- CN219793674U CN219793674U CN202321223856.6U CN202321223856U CN219793674U CN 219793674 U CN219793674 U CN 219793674U CN 202321223856 U CN202321223856 U CN 202321223856U CN 219793674 U CN219793674 U CN 219793674U
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- guide rail
- main platform
- elevator
- bridge pier
- lower guide
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000013016 damping Methods 0.000 description 6
- 230000013011 mating Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The utility model provides a guide rail for bridge pier construction, which comprises a guide rail in a main platform of an elevator and a lower guide rail of the main platform of the elevator, wherein the guide rail in the main platform of the elevator is connected with the lower guide rail of the main platform of the elevator in a sliding fit manner, and the whole length of the guide rail in the main platform of the elevator and the lower guide rail of the main platform of the elevator can be adjusted through sliding. According to the technical scheme, through the arrangement of the fixed guide structure and the telescopic embedded guide rail, the construction problem of different heights of the bridge pier is solved, and the full-height full-surrounding operation of the bridge pier is realized.
Description
Technical Field
The utility model relates to the technical field of bridge pier construction, in particular to a guide rail for bridge pier column construction.
Background
In bridge design, column pier is the structure type that generally adopts. The construction of the bridge pier is one of key control nodes for bridge construction, and the bridge pier construction of the bridge in the prior art is more common in hydraulic self-climbing formwork and turnover formwork construction.
The construction method for highway bridges and municipal viaducts for a long time adopts a block template which is connected into an integral template system through bolt buckling, then the template fastening bolts are required to be loosened manually at high altitude when the templates are lifted each time, the potential safety hazard is large, time and labor are wasted, larger measure cost and longer construction period are required for building surrounding safety enclosures or ladder climbing channels, and the construction cost is higher.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the guide rail for bridge pier construction, which solves the construction problems of different heights of piers and realizes the full-height full-surrounding operation of piers.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a guide rail is used in bridge pier stud construction, includes guide rail and lift main platform lower guide rail in the lift main platform, guide rail and lift main platform lower guide rail sliding fit connect in the lift main platform, guide rail and lift main platform lower guide rail can be through the whole length of sliding adjustment in the lift main platform.
The technical scheme of optimizing, guide rail one side is provided with the C type spout that extends along length direction in the lift main platform, guide rail one side is provided with the slider that extends along length direction under the lift main platform, the slider cup joints with C type spout, just the slider can follow C type spout and slide.
According to the optimized technical scheme, jackscrews penetrate through the side wall of the C-shaped chute, and the jackscrews can be screwed in inwards or screwed out outwards through rotation so as to clamp or loosen the lower guide rail of the main platform of the elevator.
The optimized technical scheme, the lower extreme of lift main platform lower guideway is provided with lift main platform lower guideway anchor point, lift main platform lower guideway anchor point is used for fixing the lower extreme of lift main platform lower guideway based on the ground.
The optimized technical scheme is that the anchor point of the lower guide rail of the main platform of the elevator comprises a pressing plate and a bottom plate, the bottom plate is connected with a foundation through a pre-buried bolt, the lower end of the lower guide rail of the main platform of the elevator is located on the bottom plate, and the lower end of the lower guide rail of the main platform of the elevator is fixed on the bottom plate through the cooperation of the pressing plate and the bolt.
In summary, the guide rail for bridge pier construction solves the construction problem of different heights of the bridge pier by arranging the fixed guide structure and the telescopic embedded guide rail, and realizes the full-height and full-surrounding operation of the bridge pier.
Drawings
FIG. 1 is a schematic diagram of a construction system for a bridge pier according to the present utility model;
FIG. 2 is a schematic view of a structure of a wind cable mount;
FIG. 3 is a schematic diagram of a structure of the automatic template in an open-close state and connected with a wind-stand in a matched manner;
FIG. 4 is an enlarged view of A in FIG. 3;
FIG. 5 is a schematic diagram of a cooperative connection structure between an automatic template and a wind-stand in a closed state;
FIG. 6 is an enlarged view of A in FIG. 5;
FIG. 7 is a schematic view of the support relationship between a ship-type bracket and a reinforcement cage;
FIG. 8 is a schematic view of the structure of a boat bracket;
FIG. 9 is an enlarged view of A in FIG. 7;
FIG. 10 is a schematic diagram of the mating connection of an automatic anchor ear to an automatic template;
FIG. 11 is an enlarged view of A in FIG. 10;
FIG. 12 is a schematic view of an application mounting structure of a rail on the elevator body platform and a rail in the elevator body platform;
FIG. 13 is a schematic view of the mating connection of the rails on the elevator body platform with the rails in the elevator body platform;
FIG. 14 is a schematic structural view of a hoop for bridge pier construction;
FIG. 15 is a schematic structural view of a half collar assembly;
FIG. 16 is a schematic view of the mating mounting structure of the half collar assembly and locking device;
FIG. 17 is a schematic diagram of a pulling system;
FIG. 18 is a schematic view of the construction of a disc spring cylinder;
FIG. 19 is a schematic cross-sectional view of the structure of A-A in FIG. 18;
FIG. 20 is a schematic perspective view of a disc spring cylinder;
FIG. 21 is a schematic view of the locking device in a top view;
FIG. 22 is a schematic cross-sectional view of the structure of A-A in FIG. 21;
FIG. 23 is a schematic view showing the structure of the locking device in a front view;
FIG. 24 is a schematic cross-sectional view of the structure A-A of FIG. 23;
FIG. 25 is an enlarged view of B in FIG. 24;
FIG. 26 is a schematic perspective view of a locking device;
FIG. 27 is a schematic view of the mating structure of the upper wedge and the lower wedge;
FIG. 28 is a schematic top view of the lower wedge;
FIG. 29 is a schematic view of a damping guide wheel;
FIG. 30 is a schematic cross-sectional view of A-A of FIG. 29;
FIG. 31 is a schematic cross-sectional view of B-B in FIG. 29;
FIG. 32 is a schematic perspective view of a damping guide wheel;
FIG. 33 is a schematic view of a structure of a dual-grip brake apparatus;
FIG. 34 is a schematic view of a rail for construction of a bridge pier;
FIG. 35 is a schematic illustration of the mating connection of the slider and C-shaped chute;
FIG. 36 is a schematic view of a mating connection between a lower track of the elevator body platform and an anchor point for the lower track of the elevator body platform;
FIG. 37 is a schematic view of a construction hoist for a bridge;
FIG. 38 is a schematic view of the mounting structure of the guide structure in the body;
Detailed Description
Embodiment 1, as shown in 34-36, a guide rail for bridge pier construction comprises a main platform middle guide rail 04 and a main platform lower guide rail 09, wherein the main platform middle guide rail 04 and the main platform lower guide rail 09 are connected in a sliding fit manner, and the main platform middle guide rail 04 and the main platform lower guide rail 09 can be adjusted in overall length through sliding.
The main platform of the elevator is characterized in that a C-shaped chute 04.01 extending along the length direction is arranged on one side of the guide rail 04 in the main platform of the elevator, a slide block 09.01 extending along the length direction is arranged on one side of the lower guide rail 09 of the main platform of the elevator, the slide block 09.01 is sleeved with the C-shaped chute 04.01, and the slide block 09.01 can slide along the C-shaped chute 04.01.
The side wall of the C-shaped chute 04.01 is penetrated by a jackscrew 04.02, and the jackscrew 04.02 can be screwed inwards or outwards by rotating to clamp or unclamp the lower guide rail 09 of the main platform of the elevator.
The lower extreme of lift main platform lower guideway 09 is provided with lift main platform lower guideway anchor point 10, lift main platform lower guideway anchor point 10 is used for fixing the lower extreme of lift main platform lower guideway 09 based on the ground.
The anchor point 10 of the lower guide rail of the main platform of the elevator comprises a pressing plate 10.02 and a bottom plate 10.03, the bottom plate 10.03 is connected with a foundation through a pre-buried bolt 10.01, the lower end of the lower guide rail 09 of the main platform of the elevator is located on the bottom plate 10.03, and the lower end of the lower guide rail 09 of the main platform of the elevator is fixed on the bottom plate 10.03 through the cooperation of the pressing plate 10.02 and the bolt.
In the present embodiment
The guide rail 04 in the main platform of the elevator and the lower guide rail 09 of the main platform of the elevator are sleeved together through the C-shaped chute 04.01 and the sliding block 09.01, and can slide relatively to adapt to the height change of the automatic hoop 06. When the guide rail 04 in the main platform of the elevator and the lower guide rail 09 of the main platform of the elevator relatively slide, the jackscrews 04.02 are loosened, and after the position of the automatic hoop 06 is determined, the jackscrews 04.02 are locked, so that the guide rail 04 in the main platform of the elevator and the lower guide rail 09 of the main platform of the elevator are fixed together to be used as a track for the up-and-down movement of the main body 08 of the elevator.
The anchor point 10 of the lower guide rail of the main platform of the elevator mainly comprises embedded bolts 10.01, a pressing plate 10.02 and a bottom plate 10.03, and is mainly used for anchoring the lower guide rail 09 of the main platform of the elevator, so that the lower guide rail is firm and reliable.
Application examples:
as shown in fig. 1-38, a bridge pier construction system mainly comprises a wind cable frame 01, a main lifter body hanging point 02, an upper lifter main platform guide rail 03, a middle lifter main platform guide rail 04, an automatic template 05, an automatic anchor ear 06, a main lifter body hanging and safety steel wire rope 07, a main lifter 08, a lower lifter main platform guide rail 09 and a lower lifter main platform guide rail anchor point 10.
The wind cable frame 01 is arranged at the upper end of the automatic template 05, and the wind cable frame 01 is connected with the automatic template 05 in a variable floating way; the top of the wind cable frame 01 is provided with a plurality of wire rope hanging points, and the wind cable frame 05 is fixed on the ground through a wire rope connected to the wire rope hanging points.
A circle of outer rails 01.01 are arranged above the wind cable frame 01 to prevent personnel from falling from above the wind cable frame 01; the outer rails 01.01 are connected by rail clamps 01.02 to increase the strength of the outer rails 01.01; a turning plate 01.03 which can be used for workers to go up and down is arranged on the table top of the wind cable frame 01, and a ladder rod 01.04 is arranged on the main body bracket of the wind cable frame 01 so that the workers can go up to the top of the wind cable frame 01 from the elevator main body 08; a plurality of lifting points 02 of the main body of the lifter are arranged on the main body bracket of the wind cable bracket 01, and the lifting points can be rotary lifting points, so that the phenomenon of self-winding of the steel wire rope can be effectively prevented; a plurality of boat-shaped brackets 01.05 are arranged on the main body bracket of the wind cable bracket 01 and are used for adjusting the verticality of the reinforcement cage 11; be equipped with a plurality of flange boards 01.06 on the main part support of wind cable frame 01, connect wind cable frame 01 and automatic template 05 upper end flange face, be equipped with a plurality of connectors 01.07 on the main part support of wind cable frame 01, connect wind cable frame 01 and automatic template 05 main part for the two are firm to be connected.
The variable floating connection between the wind cable frame 01 and the automatic template 05 comprises a square sliding plate 01.09 arranged at the bottom of the wind cable frame 01, a cover plate 01.08 and a connecting flange plate 01.06 arranged at the upper end of the automatic template 05; the cover plate 01.08 and the connecting flange plate 01.06 form a cavity where the square sliding plate 01.09 moves; when the automatic template 05 is in a closed state, the square sliding plate 01.09 is propped against the outer side of the cover plate 01.08, the steel wire rope on the wind cable frame 01 transmits acting force to the automatic template 05, the wind cable frame 01 and the automatic template 05 are stabilized, and a certain gap is reserved between the square sliding plate and the inner side of the cover plate.
The contact part of the wind cable frame 01 and the reinforcement cage 11 of the bridge pier 12 which is constructed is provided with a detachable righting device, the righting device comprises a ship-shaped bracket 01.05, and the upper end and the lower end of the ship-shaped bracket 01.05 are provided with inclined planes with certain inclination. The boat-shaped bracket 01.05 is connected with nuts on the wind cable frame 01 in a matched manner through bolts, and the wind cable frame 01 is provided with a plurality of nuts matched with the boat-shaped bracket 01.05. In operation, after the wind cable frame 01 is hoisted, the ship-shaped support 01.05 of the righting device is contacted with the reinforcement cage 11 on the bridge pier 12 which is constructed, so that the reinforcement cage 11 is righted. When the cable frame 01 is required to descend with the automatic formwork 05 after the completion of the construction, the operator rides on the elevator main body 08 to retract the boat bracket 01.05.
The upper guide rail 03 of the main platform of the lifter and the guide rails 04 of the main platforms of the plurality of lifters are respectively connected to the wind cable frame 01 and the automatic template 05, and play a role in guiding and supporting the up-and-down movement of the main body 08 of the lifter.
The automatic template 05 is arranged on the automatic anchor ear 06, and the automatic anchor ear 06 is firmly connected with a plurality of pressing plates and jackscrews by means of the pressing plates and jackscrews.
The automatic hoop 06 is integrally connected by two semi-ring assemblies 0.6.01 through a bolt assembly 06.03. There is a pull system 06.02 on each of the two half ring assemblies 0.6.01.
The half ring assembly 06.01 is composed of a half ring box 06.01.01 and a locking device 06.01.02, and the locking device 06.01.02 can uniformly distribute multiple groups. The half ring box 06.01.01 is provided with a fixed ear seat 06.01.01.01, and the adjustable ear seat 06.01.02.01 of the locking device 06.01.02 is connected with the fixed ear seat 06.01.01.01 through a bolt assembly 06.01.02.04.
The pulling system 06.02 is composed of a power source 06.02.01, a gear 06.02.02 and a chain 06.02.03, and the lower wedge 06.01.02.11 can be pulled by the combination of the power source 06.02.01, the gear 06.02.02 and the chain 06.02.03, so that the automatic template 05 plays a role in clasping the bridge pier 12. The power source 06.02.01 may be a hydraulic cylinder or an air cylinder or the like.
The locking device 06.01.02 is comprised of an adjustable ear mount 06.01.02.01, an adjustment washer 06.01.02.05, a pin assembly 06.01.02.02, a disc spring cylinder 06.01.02.03, a damped guide wheel 06.01.02.06, a door frame 06.01.02.07, a pressure plate 06.01.02.08, an upper wedge 06.01.02.09, a needle roller row 06.01.02.10, a lower wedge 06.01.02.11, a guide plate 06.01.02.12, a fastener 06.01.02.13, a damped guide wheel mount 06.01.02.14, a bolt assembly 06.01.02.04, and the like.
The piston rod 06.01.02.03.01 of the disc spring cylinder 06.01.02.03 is provided with a knuckle bearing 06.01.02.03.02 which is connected to an adjustable ear mount 06.01.02.01 by a pin assembly 06.01.02.02. The upper wedge block 06.01.02.09 is connected with the cylinder 06.01.02.03.05 of the disc spring cylinder 06.01.02.03 through the pressing plate 06.01.02.08, the right end of the cylinder 06.01.02.03.05 is a spherical surface, the contact position between the upper wedge block 06.01.02.09 and the cylinder 06.01.02.03.05 is also a spherical surface, the upper wedge block 06.01.02.09 and the cylinder 06.01.02.03.05 form a spherical hinge connection, the top of the upper wedge block 06.01.02.09 is an arc surface, and the upper wedge block 06.01.02.09 is in line contact with the door frame 06.01.02.07, so that the upper wedge block 06.01.02.09 can adapt to elastic deformation caused by loading of a box body, and further effective contact between the lower wedge block 06.01.02.11 and a pier column is ensured, and the surface of the pier column is prevented from being damaged.
The cylinder 06.01.02.03.05 of the disc spring cylinder 06.01.02.03 has two trunnions, and the disc spring cylinder 06.01.02.03 can be supported and guided by the contact of the trunnions with the sliding groove at the door frame 06.01.02.07. A plurality of disc springs 06.01.02.03.04 are arranged between the piston rod of the disc spring cylinder 06.01.02.03 and the cylinder 06.01.02.03.05, and can play a role of elastic buffering.
The upper wedge 06.01.02.09 and the lower wedge 06.01.02.11 are guided by the guide plate 06.01.02.12, and the upper and lower wedges can slide relatively along the guide plate 06.01.02.12. The lower wedge 06.01.02.11 is designed with a guide groove, the guide plate 06.01.02.12 is designed into an L shape, and the guide plate is fixed on two sides of the upper wedge 06.01.02.09 through a fastener 06.01.02.15 and extends into the guide groove of the lower wedge 06.01.02.11 to guide and limit the lower wedge. The joint surface of the upper wedge block and the lower wedge block is provided with a groove, the groove is provided with a roller needle row 06.01.02.10, and the upper wedge block and the lower wedge block are contacted through the roller needle row, so that the friction coefficient between the upper wedge block and the lower wedge block can be reduced, and the self-locking performance of the wedge blocks is more reliable.
Damping guide wheel mounting plates 06.01.02.14 are fixed on two sides of the lower wedge 06.01.02.11, and damping guide wheels 06.01.02.06 are fixed on the mounting plates. The damping guide wheel 06.01.02.06 is composed of a mounting sleeve 06.01.02.06.01, a nut 06.01.02.06.02, a first spring 106.01.02.06.03, a roller bracket 06.01.02.06.04, a guide wheel 06.01.02.06.05, a pin assembly 206.01.02.06.06, a bolt assembly 206.01.02.06.07, a second spring 06.01.02.06.08, a screw assembly 06.01.02.06.09, a connecting rod 06.01.02.06.10, a brake seat 06.01.02.06.11 and a brake pad 06.01.02.06.12.
The mounting sleeve 06.01.02.06.01 is secured to the damped guide wheel mounting plate 06.01.02.14 by a bolt assembly 206.01.02.06.09 and the guide wheel 06.01.02.06.05 is coupled to the roller bracket 06.01.02.06.04 by a pin assembly 206.01.02.06.06. A first spring 06.01.02.06.03 is provided between the roller bracket 06.01.02.06.04 and the mounting sleeve 06.01.02.06.01 to apply a load to the guide wheel 06.01.02.06.05 to maintain it against the surface of the abutment 12.
The roller bracket 06.01.02.06.04 is provided with a butt-clamp type braking device which consists of a second spring 06.01.02.06.08, a screw rod assembly 06.01.02.06.09, a connecting rod 06.01.02.06.10, a braking seat 06.01.02.06.11, a braking block 06.01.02.06.12 and a pin shaft 06.01.02.06.13. The roller support 06.01.02.06.04 is fixed with the ear mount, and the middle pin hole of connecting rod 06.01.02.06.10 is connected with the ear mount on roller support 06.01.02.06.04 through round pin axle 06.01.02.06.13, and two connecting rods 06.01.02.06.10 one end is connected through screw rod subassembly 06.01.02.06.09, wears to have second spring 06.01.02.06.08 on the screw rod subassembly 06.01.02.06.09, can exert an outside elasticity to two connecting rods. The other end of the connecting rod is connected with a brake seat 06.01.02.06.11 through a pin roll 06.01.02.06.13, a brake block 06.01.02.06.12 is fixed on the brake seat, and the two brake blocks 06.01.02.06.12 can clamp the guide wheel under the action of a second spring 06.01.02.06.08, so that a braking moment is generated on the guide wheel 06.01.02.06.05.
When the self-climbing device falls accidentally and overspeed, the locking device of the safety hoop can be triggered by the damping guide wheel to act, so that the upper wedge 06.01.02.09 and the lower wedge 06.01.02.11 are relatively close, the lower wedge 06.01.02.11 is tightly attached to the pier stud, and the clamping is realized to generate braking force, so that the self-climbing device is stopped and locked in position through self-locking, further sliding is prevented, and an effective anti-falling protection effect is achieved.
The box body of the safety hoop is lifted up through external force, so that the upper wedge 06.01.02.09 and the lower wedge 06.01.02.11 are separated, unlocking can be realized, and the safety hoop can be effectively self-locked when being lifted up actively without external force, and is safe and reliable.
The elevator body 08 is mainly composed of a safety lock 08.01, a lifter 08.02, an electric cabinet 08.03, a guide structure 08.04, a safety door 08.05, and a body 08.06. The guiding structure 08.04 can slide up and down along the upper slide rail 04.03 and the lower slide rail 09.02.
The elevator main body 08 is designed with an electric cabinet 08.03, and the electric cabinet is integrated with a manual control and wireless control module, so that local operation and remote wireless operation can be realized.
The guide structure 08.04 of the elevator body 08 can slide up and down along the upper rail 04.03 and the lower rail 09.02 for balancing and elevating the elevator body 08. The guide structure 08.04 may be a roller as shown, a slider, or the like.
The above embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the present utility model, and it should be noted that any modifications, equivalents, improvements, etc. which are within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (4)
1. The utility model provides a guide rail for bridge pier construction which characterized in that: the elevator comprises an elevator main platform middle guide rail (04) and an elevator main platform lower guide rail (09), wherein the elevator main platform middle guide rail (04) is connected with the elevator main platform lower guide rail (09) in a sliding fit manner, and the overall length of the elevator main platform middle guide rail (04) and the elevator main platform lower guide rail (09) can be adjusted through sliding; c-shaped sliding grooves (04.01) extending along the length direction are formed in one side of a guide rail (04) in the main platform of the elevator, sliding blocks (09.01) extending along the length direction are arranged on one side of a lower guide rail (09) of the main platform of the elevator, the sliding blocks (09.01) are sleeved with the C-shaped sliding grooves (04.01), and the sliding blocks (09.01) can slide along the C-shaped sliding grooves (04.01).
2. The guide rail for bridge pier construction according to claim 1, wherein: the side wall of the C-shaped chute (04.01) is penetrated with a jackscrew (04.02), and the jackscrew (04.02) can be screwed inwards or outwards through rotation so as to clamp or unclamp the lower guide rail (09) of the main platform of the elevator.
3. The guide rail for bridge pier construction according to claim 1 or 2, characterized in that: the lower extreme of lift main platform lower guideway (09) is provided with lift main platform lower guideway anchor point (10), lift main platform lower guideway anchor point (10) are used for fixing the lower extreme of lift main platform lower guideway (09) on the ground.
4. A guide rail for bridge pier construction according to claim 3, wherein: the anchor point (10) of the lower guide rail of the main platform of the elevator comprises a pressing plate (10.02) and a bottom plate (10.03), the bottom plate (10.03) is connected with a foundation through a pre-buried bolt (10.01), the lower end of the lower guide rail (09) of the main platform of the elevator is located on the bottom plate (10.03), and the lower end of the lower guide rail (09) of the main platform of the elevator is fixed on the bottom plate (10.03) through the cooperation of the pressing plate (10.02) and the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321223856.6U CN219793674U (en) | 2023-05-19 | 2023-05-19 | Guide rail for bridge pier column construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321223856.6U CN219793674U (en) | 2023-05-19 | 2023-05-19 | Guide rail for bridge pier column construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219793674U true CN219793674U (en) | 2023-10-03 |
Family
ID=88153236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321223856.6U Active CN219793674U (en) | 2023-05-19 | 2023-05-19 | Guide rail for bridge pier column construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219793674U (en) |
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2023
- 2023-05-19 CN CN202321223856.6U patent/CN219793674U/en active Active
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