CN220579783U - Framing bridge - Google Patents
Framing bridge Download PDFInfo
- Publication number
- CN220579783U CN220579783U CN202321870430.XU CN202321870430U CN220579783U CN 220579783 U CN220579783 U CN 220579783U CN 202321870430 U CN202321870430 U CN 202321870430U CN 220579783 U CN220579783 U CN 220579783U
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- bridge
- flange
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- framing
- reinforcing ribs
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- 238000009432 framing Methods 0.000 title claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 60
- 239000004567 concrete Substances 0.000 claims description 30
- 238000005192 partition Methods 0.000 claims description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 239000011150 reinforced concrete Substances 0.000 claims description 7
- 239000003351 stiffener Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 13
- 238000000926 separation method Methods 0.000 abstract description 11
- 206010039203 Road traffic accident Diseases 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 10
- 238000005266 casting Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a framing bridge, which relates to the technical field of bridge design and construction, and specifically comprises a first bridge, a second bridge and a separation belt; the first bridge and the second bridge are identical in extending direction and are arranged at intervals, the first bridge is provided with a first flange, and the second bridge is provided with a second flange; the separation belt is arranged between the first bridge and the second bridge and comprises a base and an upper layer connecting structure positioned above the base; the base is fixedly connected with the first flange and the second flange respectively; the upper layer connecting structure is respectively connected with the bridge deck of the first bridge and the bridge deck of the second bridge. In the framing bridge provided by the utility model, the separation belt, the first bridge and the second bridge are of an integrated structure, the connection structure is constructed in the bridge construction stage and is connected with the bridge main body structure into a whole, so that the construction cost and difficulty are obviously reduced, the structural stability is greatly improved, and the framing bridge can be used as an escape platform for emergency refuge even in the event of traffic accidents.
Description
Technical Field
The utility model relates to the technical field of bridge design and construction, in particular to a framing bridge.
Background
When the bridge width is more than 18m, the bridge is built in multiple frames in consideration of the manufacturing cost and the structure. The construction difficulty of the left and right frames is smaller, the construction difficulty of the lower structure with small span is low, the construction cost is low, the construction difficulty of the large-scale lower structure with the left and right frames together in the general construction meeting the overline section can be much higher, and even some of the large-scale lower structures still need prestress tensioning. Meanwhile, the left and right width can be mutually changed in an integral mode and a separation mode on the wiring according to the topography condition, the wiring can be better arranged in some places with complex topography, and the safety problem caused by opposite travelling can be effectively reduced.
However, a gap exists between two bridge bodies of the framing bridge, and drivers and passengers cannot quickly observe and clear the surrounding environment of the road in the period of poor sight such as night, early morning and the like, so that a falling tragic is easy to cause.
In the prior art, a protective net is arranged at the central dividing belt of the framing bridge or a protective plate is arranged above the dividing belt, but when the protective net and the protective plate are used for a long time, the protective net and the protective plate are easily separated under the influence of long-term vibration of a vehicle, so that a secondary accident is caused.
Disclosure of Invention
The utility model aims to provide a framing bridge so as to solve the technical problem that a protective net and a protective plate are easy to fall off under the influence of long-term vibration when the protective net and the protective plate are arranged on a partition belt in the prior art, so that secondary accidents are caused.
The utility model provides a framing bridge, comprising: a first bridge, a second bridge and a dividing strip; the extending directions of the first bridge and the second bridge are the same and are arranged at intervals, the first bridge is provided with a first flange, and the second bridge is provided with a second flange; the separation belt is arranged between the first bridge and the second bridge and comprises a base and an upper-layer connecting structure positioned above the base; the base is fixedly connected with the first flange and the second flange respectively; the upper layer connecting structure is respectively connected with the bridge deck of the first bridge and the bridge deck of the second bridge in an integrated manner.
Further, the upper layer connecting structure comprises a concrete slab and a reinforcing rib group; the concrete slab is integrally poured and connected with the bridge decks of the first bridge and the second bridge; the reinforcing rib group is arranged in the concrete slab.
Further, the reinforcing rib group comprises a longitudinal reinforcing rib and a horizontal reinforcing rib; the plurality of longitudinal reinforcing ribs are arranged, the extending direction of the plurality of longitudinal reinforcing ribs is the same as the extending direction of the first bridge and the second bridge, and the longitudinal reinforcing ribs are arranged at intervals between the first bridge and the second bridge; the horizontal reinforcing ribs are arranged in a plurality, the extending directions of the horizontal reinforcing ribs are perpendicular to the extending directions of the longitudinal reinforcing ribs, and the horizontal reinforcing ribs are arranged at intervals along the extending directions of the longitudinal reinforcing ribs.
Further, guardrails are arranged on the first bridge and the second bridge; the extending direction of the guardrail is the same as the extending direction of the first bridge and the extending direction of the second bridge.
Further, a drain pipe is arranged on the guardrail; the extending direction of the drain pipe is perpendicular to the extending direction of the first bridge and the second bridge, one end of the drain pipe is connected with the separation belt, and the other end of the drain pipe is connected with the bridge deck of the first bridge or the bridge deck of the second bridge.
Optionally, when the first flange and the second flange are reinforced concrete structures; the base is a reinforced concrete structure integrally cast with the first flange and the second flange.
Further, the first flange and the second flange are internally embedded with fixed steel bars; and connecting steel bars are arranged in the base, and are connected with the fixing steel bars.
Further, stirrups and structural reinforcing ribs are arranged in the base; the bottom of the stirrup is buried in the base, and the top of the stirrup is buried in the upper layer connecting structure; the structure strengthening rib is equipped with a plurality of, and is a plurality of the extending direction of structure strengthening rib is the same with the extending direction of first bridge with the second bridge, and the interval sets up in the base.
Optionally, when the flanges of the first bridge and the flanges of the second bridge are steel structures; the base comprises a bottom plate, a supporting plate and a top plate, wherein the top plate is positioned above the bottom plate and is arranged at intervals with the bottom plate, and the supporting plate is positioned between the top plate and the bottom plate and is respectively connected with the top plate and the bottom plate; the bottom plate, the support plate and the top plate are arranged between the first bridge and the second bridge; the bottom plate and the supporting plate are fixedly connected with the first bridge and the second bridge.
Further, a plurality of shear nails are arranged on the top plate; the shear nails are embedded in the upper layer connecting structure.
The beneficial effects are that:
the utility model provides a framing bridge, which comprises a first bridge, a second bridge and a separation belt; the first bridge and the second bridge are identical in extending direction and are arranged at intervals, the first bridge is provided with a first flange, and the second bridge is provided with a second flange; the separation belt is arranged between the first bridge and the second bridge and comprises a base and an upper layer connecting structure positioned above the base; the base is fixedly connected with the first flange and the second flange respectively; the upper layer connecting structure is respectively connected with the bridge deck of the first bridge and the bridge deck of the second bridge.
In particular, in the framing bridge provided by the utility model, the base of the separation belt is fixedly connected with the first bridge and the second bridge, the upper-layer connecting structure of the separation belt is of a concrete structure and is integrally connected with the bridge decks of the first bridge and the second bridge, the separation belt and the first bridge and the second bridge are of an integrated structure, the connecting structure is constructed in the bridge construction stage and is integrally connected with the main bridge structure, the construction cost and the difficulty are obviously reduced, the structural stability is greatly improved, and the framing bridge can be used as an escape platform for emergency evacuation even when traffic accidents occur.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a dividing strip of a framing bridge according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a dividing strip of a framing bridge according to a second embodiment of the present utility model;
fig. 3 is a flow chart of the construction of the partition belt of the framing bridge according to the embodiment of the present utility model.
Icon:
100—a first flange;
200-a second flange;
300-separator;
310-base; 311-connecting steel bars; 312-stirrups; 313-a bottom plate; 314-a support plate; 315-top plate;
320-upper layer connection structure; 321-shear pins;
330-a set of reinforcing bars;
400-bridge deck;
500-guard bars; 510-drain pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model will now be described in further detail with reference to specific examples thereof in connection with the accompanying drawings.
Embodiment one:
as shown in fig. 1 and 3, the framing bridge provided in this embodiment includes: a first bridge, a second bridge, and a separator 300; the extending directions of the first bridge and the second bridge are the same and are arranged at intervals, the first bridge is provided with a first flange 100, and the second bridge is provided with a second flange 200; the partition belt 300 is provided between the first bridge and the second bridge, and the partition belt 300 includes a base 310 and an upper connection structure 320 above the base 310; the base 310 is fixedly connected with the first flange 100 and the second flange 200, respectively; the upper layer connection structure 320 is integrally connected with the deck 400 of the first bridge and the deck 400 of the second bridge, respectively.
The base 310 in this embodiment is fixedly connected with the first bridge and the second bridge, the upper layer connection structure 320 of the partition belt 300 is a concrete structure, and is formed by casting together with the bridge decks 400 of the first bridge and the second bridge, and is an integrated structure with the first bridge and the second bridge after being formed.
In this embodiment, the upper layer connection structure 320 includes a concrete slab and a set of reinforcing bars 330; the concrete slab is integrally poured and connected with the bridge deck 400 of the first bridge and the second bridge; the set of reinforcing bars 330 is disposed within the concrete slab.
In the case of the upper connection structure 320, the reinforcing bar group 330 is previously disposed on the base 310, and then concrete is poured. After the concrete is poured, the concrete wraps the reinforcing rib group 330 to form a connection structure of the reinforced concrete structure, thereby reinforcing the structural strength of the upper connection structure 320 and improving the stability thereof.
In the present embodiment, the reinforcing rib group 330 includes longitudinal reinforcing ribs and horizontal reinforcing ribs; the plurality of longitudinal reinforcing ribs are arranged, the extending direction of the plurality of longitudinal reinforcing ribs is the same as the extending direction of the first bridge and the second bridge, and the plurality of longitudinal reinforcing ribs are arranged at intervals between the first bridge and the second bridge; the horizontal reinforcing ribs are provided with a plurality of horizontal reinforcing ribs, the extending direction of the plurality of horizontal reinforcing ribs is perpendicular to the extending direction of the longitudinal reinforcing ribs, and the horizontal reinforcing ribs are arranged at intervals along the extending direction of the longitudinal reinforcing ribs.
The longitudinal reinforcing ribs extend in the same direction as the first and second bridges, and can improve the structural strength of the partition strip 300 in the extending direction. The horizontal reinforcing ribs are disposed at intervals along the extending direction of the longitudinal reinforcing ribs in the same extending direction as the first and second bridges, thereby further improving the structural strength of the partition belt 300 in the horizontal direction. After the partition belt 300 is reinforced by the longitudinal reinforcing ribs and the horizontal reinforcing ribs, the stress capacity and stability of the overall structure can be improved.
In this embodiment, guardrails 500 are provided on both the first bridge and the second bridge; the extending direction of the guard rail 500 is the same as the extending direction of the first bridge and the extending direction of the second bridge.
The guardrail 500 is a railing for avoiding danger or blocking traffic, and in this embodiment, the guardrail 500 is disposed on both sides of the first bridge and both sides of the second bridge. After the first bridge and the second bridge are connected by the partition belt 300, the barrier 500 can isolate the boundary of the first bridge and the second bridge.
Specifically, in the present embodiment, the extending direction of the drain pipe 510 provided on the guardrail 500 is perpendicular to the extending directions of the first bridge and the second bridge, and one end of the drain pipe 510 is connected to the partition belt 300 and the other end is connected to the deck 400 of the first bridge or the deck 400 of the second bridge.
In this embodiment, in order to avoid rainwater accumulated in the partition belt 300 during casting of the partition belt 300, a road surface drain pipe 510 for communicating the partition belt with the first bridge is provided on the guardrail 500 between the first bridge and the partition belt 300, and a road surface drain pipe 510 for communicating the partition belt with the second bridge is provided on the guardrail 500 between the second bridge and the partition belt 300.
The extending direction of the drain pipe 510 is perpendicular to the extending directions of the first bridge and the second bridge, and the lowest height of the pipe orifice of the drain pipe 510 is not higher than the highest height of the partition belt 300, the highest height of the road surface of the first bridge, and the highest height of the second bridge, so that the accumulated water in the partition belt 300 can be discharged to the road surface of the first bridge or the road surface of the second bridge through the drain pipe 510.
It should be noted that, in this embodiment, the first flange 100 and the second flange 200 are reinforced concrete structures; the base 310 is a reinforced concrete structure integrally cast with the first flange 100 and the second flange 200.
When constructing the bridge, the first flange 100, the second flange 200 and the foundation are cast together with the same type of concrete, and after the concrete is set, the base 310 can be integrally connected with the first flange 100 and the second flange 200. The connection structure formed by integral pouring has strong stability, excellent structural strength and high construction efficiency.
In this embodiment, the first flange 100 and the second flange 200 are embedded with fixing bars; the base 310 is internally provided with a connecting steel bar 311, and the connecting steel bar 311 is connected with a fixing steel bar.
When the framing bridge is built, the connecting steel bars 311 are firstly arranged to be connected with the fixed steel bars, then the first flange 100, the second flange 200 and the foundation are poured together by using the concrete of the same type, and after the concrete is solidified, the base 310 can form an integrated connecting structure with the first flange 100 and the second flange 200.
The connecting steel bars 311 of the base 310 are connected with the fixed steel bars in the first flange 100 and the second flange 200, the concrete structure of the base 310 and the concrete of the first flange 100 and the second flange 200 form an integrated connecting structure, and the two structures are respectively poured again for combination after being connected, so that the structure strength is higher, the safety and the stability are high, and the later maintenance cost is low.
Wherein, specifically, connecting bar 311 and fixed steel bar are connected through the mode of ligature, and the connected mode of ligature is the connected mode commonly used between the steel bar, implements simpler, efficient, and the joint strength after the connection is excellent.
In this embodiment, stirrups 312 and structural stiffeners are provided in base 310; the bottom of the stirrup 312 is embedded in the base 310, and the top of the stirrup 312 is embedded in the upper layer connection structure 320; the structural reinforcing ribs are provided in plurality, and the extending directions of the structural reinforcing ribs are the same as the extending directions of the first bridge and the second bridge and are arranged in the base 310 at intervals.
Specifically, the stirrup 312, the structural reinforcing bars and the connecting bars 311 form a reinforcing bar set, and before the concrete is poured to form the base 310, the connecting bars 311 are connected with the fixing bars so that the reinforcing bar set is connected with the fixing bars, and when the concrete is poured to form the base 310, the reinforcing bar sets are all located in the concrete, so that the connection strength between the base 310 and the first flange 100 and the connection strength between the base 200 can be enhanced while the structural strength of the base 310 is improved.
And, the bottom of stirrup 312 is connected with fixed reinforcement, after pouring concrete, the bottom of stirrup 312 is wrapped up in by the concrete, after the concrete of pouring the base solidifies and forms base 310, the bottom of stirrup 312 inlays in the concrete, the top of stirrup 312 is protruding base 310 outward at the top of base 310, when setting up upper-layer connection structure 320, the top of stirrup 312 buries in the concrete that base upper-layer connection structure 320 was poured, thereby make base 310 and base 310 upper-layer connection structure 320 connect into an organic whole, promote the joint strength of base 310 and upper-layer connection structure 320.
The extending direction of the structural reinforcing ribs is the same as the extending direction of the first bridge and the extending direction of the second bridge, the base 310 is formed after concrete is poured, the structural reinforcing ribs in the base 310 can improve the integral structural strength of the base 310, correspondingly, the more the number of the longitudinal reinforcing ribs is, the more stable the structure of the base 310 is, the more excellent the supporting force is, the more the longitudinal reinforcing ribs in the embodiment are arranged in the base 310 at intervals, so that the structural stability and the supporting force of the base 310 are improved.
It should be noted that, the partition belt 300 in the framing bridge provided in this embodiment is built together when the framing bridge is built, so that the road occupation is not required after the framing bridge is built, the efficiency is high, and the building process is safer.
Example two
As shown in fig. 2 and 3, the flanges of the first bridge and the flanges of the second bridge of the framing bridge provided in the embodiment are steel structures; the base 310 includes a bottom plate 313, a support plate 314, and a top plate 315, the top plate 315 being located above the bottom plate 313 and spaced apart from the bottom plate 313, the support plate 314 being located between the top plate 315 and the bottom plate 313 and connected to the top plate 315 and the bottom plate 313, respectively; a bottom plate 313, a support plate 314, and a top plate 315 are disposed between the first bridge and the second bridge; the bottom plate 313 and the support plate 314 are fixedly connected with the first bridge and the second bridge.
Specifically, when the base 310 is installed, the installation base 313 is fixedly connected to the first flange 100 and the second flange 200 on both sides. Subsequently, the support plate 314 is disposed on the bottom plate 313, the bottom of the support plate 314 is fixedly connected to the bottom plate 313, and both ends of the support plate 314 in the horizontal direction are fixedly connected to the first flange 100 and the second flange 200, respectively.
After the support plate 314 is set, a top plate 315 is disposed above the support plate 314, and the top plate 315 is fixedly connected to the support plate 314. The base plate 313, the support plate 314, and the top plate 315 constitute the base 310.
The fixing connection in this embodiment is a welded connection, and the base 310 formed by the bottom plate 313, the support plate 314 and the top plate 315 is integrally connected by the welded connection, and is connected with the first flange 100 and the second flange 200 by the welded connection, so that the connection structure is very stable.
In this embodiment, a plurality of shear pins 321 are provided on the top plate 315; shear pins 321 are embedded within the upper layer of connection 320.
Specifically, the shear pins 321 in this embodiment are welded perpendicularly to the upper surface of the top plate 315, and when the upper connection structure 320 is disposed, the shear pins 321 are embedded in the concrete of the upper connection structure 320, so as to increase the connection volume between the base 310 and the upper connection structure 320, thereby enhancing the connection strength between the base 310 and the upper connection structure 320, and further increasing the structural strength of the partition belt 300.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present utility model.
Claims (10)
1. A framing bridge comprising: a first bridge, a second bridge and a separator (300);
the extending directions of the first bridge and the second bridge are the same and are arranged at intervals, the first bridge is provided with a first flange (100), and the second bridge is provided with a second flange (200);
the partition belt (300) is arranged between the first bridge and the second bridge, and the partition belt (300) comprises a base (310) and an upper layer connecting structure (320) positioned above the base (310);
the base (310) is fixedly connected with the first flange (100) and the second flange (200) respectively;
the upper layer connecting structure (320) is integrally connected with the bridge deck (400) of the first bridge and the bridge deck (400) of the second bridge respectively.
2. The framing bridge of claim 1, wherein the upper layer connection structure (320) comprises a concrete slab and a set of reinforcing bars (330);
the concrete slab is integrally poured and connected with bridge decks (400) of the first bridge and the second bridge;
the reinforcing rib group (330) is arranged in the concrete slab.
3. The framing bridge of claim 2, wherein the set of ribs (330) comprises longitudinal ribs and horizontal ribs;
the plurality of longitudinal reinforcing ribs are arranged, the extending direction of the plurality of longitudinal reinforcing ribs is the same as the extending direction of the first bridge and the second bridge, and the longitudinal reinforcing ribs are arranged at intervals between the first bridge and the second bridge;
the horizontal reinforcing ribs are arranged in a plurality, the extending directions of the horizontal reinforcing ribs are perpendicular to the extending directions of the longitudinal reinforcing ribs, and the horizontal reinforcing ribs are arranged at intervals along the extending directions of the longitudinal reinforcing ribs.
4. The framing bridge of claim 1, wherein a guardrail (500) is provided on each of the first bridge and the second bridge;
the extending direction of the guardrail (500) is the same as the extending direction of the first bridge and the extending direction of the second bridge.
5. The framing bridge according to claim 4, characterized in that the guardrail (500) is provided with a drain pipe (510);
the extending direction of the drain pipe (510) is perpendicular to the extending directions of the first bridge and the second bridge, one end of the drain pipe (510) is connected with the partition belt (300), and the other end is connected with the bridge deck (400) of the first bridge or the bridge deck (400) of the second bridge.
6. The framing bridge of any one of claims 1-5, wherein the first flange (100) and the second flange (200) are reinforced concrete structures;
the base (310) is a reinforced concrete structure integrally cast with the first flange (100) and the second flange (200).
7. The framing bridge of claim 6, wherein the first flange (100) and the second flange (200) have fixation bars embedded therein;
a connecting steel bar (311) is arranged in the base (310), and the connecting steel bar (311) is connected with the fixing steel bar.
8. The framing bridge of claim 7, wherein stirrups (312) and structural stiffeners are provided in the base (310);
the bottom of the stirrup (312) is embedded in the base (310), and the top of the stirrup (312) is embedded in the upper-layer connecting structure (320);
the structure reinforcing ribs are provided with a plurality of structures, the extending direction of the plurality of structure reinforcing ribs is the same as that of the first bridge and the second bridge, and the structure reinforcing ribs are arranged in the base (310) at intervals.
9. The framing bridge of any one of claims 1-5, wherein the flanges of the first bridge and the flanges of the second bridge are steel structures;
the base (310) comprises a bottom plate (313), a supporting plate (314) and a top plate (315), wherein the top plate is positioned above the bottom plate and is arranged at intervals from the bottom plate, and the supporting plate is positioned between the top plate and the bottom plate and is respectively connected with the top plate and the bottom plate;
-the bottom plate (313), the support plate (314) and the top plate (315) are arranged between the first bridge and the second bridge;
the bottom plate (313) and the supporting plate (314) are fixedly connected with the first bridge and the second bridge.
10. The framing bridge of claim 9, wherein a plurality of shear pins (321) are provided on the top plate (315);
the shear pin (321) is embedded in the upper layer connecting structure (320).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321870430.XU CN220579783U (en) | 2023-07-14 | 2023-07-14 | Framing bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321870430.XU CN220579783U (en) | 2023-07-14 | 2023-07-14 | Framing bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220579783U true CN220579783U (en) | 2024-03-12 |
Family
ID=90120567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321870430.XU Active CN220579783U (en) | 2023-07-14 | 2023-07-14 | Framing bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220579783U (en) |
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2023
- 2023-07-14 CN CN202321870430.XU patent/CN220579783U/en active Active
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