CN117513129A - Movable bridge and water delivery tunnel overhaul working well using same - Google Patents
Movable bridge and water delivery tunnel overhaul working well using same Download PDFInfo
- Publication number
- CN117513129A CN117513129A CN202311698367.0A CN202311698367A CN117513129A CN 117513129 A CN117513129 A CN 117513129A CN 202311698367 A CN202311698367 A CN 202311698367A CN 117513129 A CN117513129 A CN 117513129A
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- Prior art keywords
- bridge
- bridge body
- inlet
- branch pipe
- movable
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a movable bridge and a water delivery tunnel overhaul working well using the movable bridge, wherein the movable bridge is used for connecting a main road and a branch pipe inlet in the working well to form a traffic pavement capable of passing through, and comprises a bridge body; support beams which are opposite to the parallel interval of the inlet of the branch pipe and are respectively fixed on the main girder of the main road and the side wall of the well body at two ends; the multiple groups of rotating mechanisms are arranged on the supporting beam at intervals and connected with one end of the bridge body, so that the bridge body is rotationally connected with the supporting beam and can be switched between a tiling position and a standing position. When the bridge is in a flat-laid position, at least one part of the other end of the bridge body is supported on the bridge body supporting part at the inner side of the inlet of the branch pipe; when the plug is in the upright position, the space between the movable bridge and the branch pipe meets the space required by installing the plug. The movable bridge can be provided with the choke plug without dismantling, so that the procedures of temporary construction and dismantling are omitted, the operation time and the labor cost are saved, and the movable bridge is flexible and safe to use; and the erected bridge body also plays a role of a safety guard rail.
Description
Technical Field
The invention relates to the field of overhaul working wells, in particular to a movable bridge and a water delivery tunnel overhaul working well using the movable bridge.
Background
Large hydraulic engineering generally needs to be provided with a plurality of overhaul working wells, such as working wells with conveniently overhauled butterfly valves, for example, arranged in a water delivery tunnel. A traffic road surface for connection is needed to be arranged between a main road in the working well and inlets of left and right branch pipes in the well, so that operation and maintenance vehicles, maintenance staff and the like can conveniently enter the branch pipes through the traffic road surface to carry out maintenance operation.
The existing traffic pavement for connecting the main road with the inlet of the branch pipe is mostly composed of a temporarily built steel grid platform. When maintenance is needed, after removing a bulkhead at the inlet of the branch pipe, temporarily constructing a steel grid platform to form a traffic road surface for connection between a main road and the inlet of the branch pipe; after the maintenance is finished, the steel grating platform is dismantled, and then a choke plug can be installed at the inlet of the branch pipe to block the inlet of the branch pipe. The method is time-consuming and labor-consuming in each temporary hoisting construction and dismantling of the steel grating platform, influences the overhaul period and increases the labor cost.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a movable bridge and a water delivery tunnel overhaul working well using the movable bridge, so as to solve the problems that the construction of a traffic pavement for connection between a main road and a branch pipe inlet in the hydraulic engineering overhaul working well is time-consuming and labor-consuming, the overhaul period is influenced and the labor cost is increased.
The above object of the present invention is achieved by the following technical scheme:
a movable bridge for connecting a main road in a working well with an inlet of a branch pipe to form a traffic road surface for vehicles and personnel to pass in and out of the branch pipe, comprising:
a bridge body;
the support beams are welded along the side beams at the corresponding sides of the main road, and the two ends of the support beams are respectively fixed on the main beams and the side walls of the well body at the corresponding sides of the main road;
the multiple groups of rotating mechanisms are arranged on the supporting beam at intervals and connected with one end of the bridge body, so that the bridge body can be rotatably connected with the supporting beam and can be rotatably switched between a tiling position and a standing position; wherein,
when the bridge body rotates to a flat position, at least one part of the other end of the bridge body is lapped and supported on the bridge body supporting part at the inner side of the inlet of the branch pipe;
when the bridge body rotates to the erection position, the space between the movable bridge and the inlet of the branch pipe meets the space required by installing the choke plug at the outer side of the inlet of the branch pipe.
Preferably, the bifurcated pipe inlets are arranged at intervals in an angle relative to the adjacent main beams and parallel to the corresponding side beams, one end of each side beam is connected with the main beam in a welding way, and the other end of each side beam is fixed on the side wall of the well body.
Preferably, the beam body of the supporting beam is supported and fixed through a plurality of first brackets connected with the bottom of the working well.
Preferably, each first bracket comprises a first upright post and a first supporting plate, wherein the first supporting plate is fixed on the top of the first upright post, and the bottom of the first upright post is fixed on the bottom of the working well;
the support beam is supported and fixed on a plurality of the first support plates.
Preferably, each group of the rotating mechanism comprises a gear frame, the gear frame is detachably fixed on one side of the supporting beam, which is parallel to and opposite to the inlet of the branch pipe, an upper gear and a lower gear are arranged on the gear frame, the upper gear and the lower gear are meshed with each other, and the gear shafts are parallel to the length direction of the supporting beam;
the upper gear is fixedly connected with one end of an upper connecting arm, the other end of the upper connecting arm is connected with one end of a bridge body, the lower gear is fixedly connected with one end of a lower connecting arm, and the other end of the lower connecting arm is connected with a counterweight;
when the bridge body rotates to a flat position under the action of external force, the upper connecting arm and the lower connecting arm correspondingly rotate to be horizontal and are folded with each other;
when the bridge body rotates to a standing position under the action of external force, the upper connecting arm and the lower connecting arm correspondingly rotate to stand and open each other.
Preferably, the gear frames are welded with rear lining plates, the supporting beams are welded with rear back plates at intervals, and the rear lining plates of each gear frame are detachably connected with the corresponding rear back plates through a plurality of fasteners.
Preferably, the bridge further comprises a pull rod, and one end of the pull rod is hinged with the top surface of the bridge body.
Preferably, the bridge body supporting part is a concrete step arranged on the inner side of the inlet of the branch pipe.
Preferably, a notch is formed at the other end of the bridge body, and a first bifurcation part and a second bifurcation part are respectively formed at two sides of the notch;
when the bridge body is in a flat-laying position, the first bifurcation part is lapped and supported on the bridge body supporting part at the inner side of the bifurcation pipe inlet, and the second bifurcation part is lapped and supported on the side wall of the bifurcation pipe outer well body.
The invention also provides a water delivery tunnel overhaul working well, wherein a branch pipe inlet is respectively arranged at the left side and the right side of a main road in the working well, and a movable bridge according to any technical scheme is arranged between each branch pipe inlet and the main road.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
according to the invention, the supporting beams are arranged along the boundary beams of the main road, a plurality of groups of rotating mechanisms which are driven by gear meshing are arranged on the supporting beams at intervals, one end of the bridge body is connected through the plurality of groups of rotating mechanisms, and the bridge body is rotatably connected to the supporting beams by combining with the weight balancing principle, so that the bridge body can be manually and rapidly pulled up and put down; when the maintenance is needed, after the bulkhead at the inlet of the fork pipe is dismantled, an operator puts down the bridge body by using the pull rod and rotates the bridge body to a flat position, the other end of the bridge body is overlapped with the bridge body supporting part at the inlet of the fork pipe, a road leading to the fork pipe from a main road is formed, the maintenance vehicle and the maintenance personnel pass in and out the fork pipe conveniently, after the maintenance is finished, the operator pulls up the bridge body by using the pull rod and rotates the bridge body to a standing position to be packed up, enough space is provided for the installation of the bulkhead, the bulkhead can be installed at the inlet of the fork pipe without dismantling a movable bridge, the procedures of temporarily hoisting, building and dismantling a steel grating platform each time are omitted, the operation time and the labor cost are greatly saved, the standing bridge body also plays the role of a safety guard rail, and the potential safety hazard of falling of personnel and tools is eliminated.
The movable bridge has the advantages of simple and compact integral structure, light and portable operation, flexible use, time and labor saving, reliable installation and no need of mechanical maintenance and electrical maintenance.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 shows a schematic plan view of a working well to which the movable bridge of example 1 is applied, with the bridge body of the movable bridge in a tiled position;
fig. 2 shows a schematic plan view of a working well to which the movable bridge of example 1 is applied, wherein the bridge body of the movable bridge and the steel platform of the main road are not illustrated;
FIGS. 3 and 4 show a schematic A-A and B-B, respectively, of FIG. 2;
fig. 5 shows a schematic view of the bridge body of the movable bridge of embodiment 1 in a tiled position;
FIG. 6 shows a schematic view of the bridge body of the movable bridge of example 1 in an erect position;
fig. 7 shows a schematic front view of the movable bridge of embodiment 1;
fig. 8 shows a schematic structural view of the rotating mechanism in embodiment 1.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions;
it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted;
in the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, so to speak, the two elements are communicated internally. It will be understood by those of ordinary skill in the art that the terms described above are in the specific sense of the present invention. The terms "upper," "lower," "left," "right," "front," "rear," and the like refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description and simplicity of description, and do not necessarily indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples.
Example 1:
the movable bridge is used for connecting a main road in a working well with the inlet of the branch pipe to form a traffic road surface for vehicles and personnel to pass through so as to enter and exit the branch pipe.
Referring to fig. 1 and 2, the left and right sides of the main road 100 in the working well are respectively provided with inlets of the branch pipes 200, and movable bridges 300 of the embodiment are respectively disposed between the main road 100 and the inlets of the branch pipes 200 at both sides. The main road 100 comprises two main beams 6 for supporting the steel platform thereof and two side beams 5, the two main beams 6 are parallel to each other, the inlets of the branch pipes 200 are arranged at an angle interval relative to the adjacent main beams 6 and parallel to the side beams 5 on the same side, one end of each side beam 5 is welded with the adjacent main beam 6, and the other end is fixed on the side wall of the well body (the related structure of the main road is shown in the embodiment 2).
Referring to fig. 7, the movable bridge 300 includes a support beam 1, a bridge body 2 and a plurality of sets of rotating mechanisms 3.
Referring to fig. 2, 3, 5 and 6, the support beam 1 is opposite to the inlet parallel space of the branch pipe 200 on the same side, the support beam 1 is welded along the side beam 5, and similarly, one end of the support beam 1 is welded to the adjacent main beam 6, and the other end of the support beam is fixed on the side wall of the well body. The bridge support 201 is disposed at the inlet of the branch pipe 200, in this embodiment, the branch pipe 200 is a steel branch pipe, and the bridge support 201 is a concrete step disposed inside the inlet of the branch pipe (inside the branch pipe).
The beam body of the support beam 1 is also supported and fixed by a plurality of first brackets 41 connected to the bottom of the working well. Specifically, alternatively, the first bracket 41 includes a first upright 411 and a first support plate 412, where the first support plate is fixed on top of the first upright, and the bottom of the first upright is fixed on the bottom of the working well, and the support beam 1 is supported and fixed on the plurality of first support plates 412, and the connection manner includes, but is not limited to, bolting, welding, and the like. Further alternatively, the first upright 411 is made of a circular tube, and the first support plate 412 is welded to the upper end of the circular tube, so as to support the support beam 1, and increase the contact area; the lower connecting plate is welded at the lower end of the round pipe, holes are drilled in the lower connecting plate, and expansion bolts are installed, so that the first upright column 411 is fixed on the concrete floor at the bottom of the well, the support beam is ensured to be stably installed, and the load requirement when the movable bridge is used is met.
In this embodiment, the bridge body 2 is made of steel. Referring to fig. 7 and 8, a plurality of sets of rotating mechanisms 3 are arranged on the supporting beam 1 at intervals and connected with one end of the bridge body 2, so that the bridge body 2 can be rotatably connected with the supporting beam 1 and can be rotatably switched between a laying position and a standing position. Each of the rotating mechanisms 3 includes a carrier 30, an upper gear shaft 31, a lower gear shaft 32, an upper gear 33, a lower gear 34, an upper connecting arm 35, and a lower connecting arm 36. The gear frames 30 are detachably fixed on one side of the support beam 1 parallel to the inlet of the branch pipe, in this embodiment, a rear lining plate 37 is welded on each gear frame 30, a plurality of rear back plates 38 are welded on the support beam 1 at intervals, and the rear lining plates 37 of the gear frames 30 are detachably connected with the corresponding rear back plates 38 through a plurality of fasteners (such as bolts), so that the connection strength can be ensured, and the whole gear frames 30 can be detached from the support beam 1 when needed.
The upper gear shaft 31 and the lower gear shaft 32 are both arranged on the gear frame 30 along the length direction parallel to the supporting beam, the upper gear 33 is sleeved outside the upper gear shaft 31 and is welded and connected with one end of the upper connecting arm 35, the other end of the upper connecting arm 35 is connected with one end of the bridge body 2, the lower gear 34 is sleeved outside the lower gear shaft 32 and is meshed with the upper gear 33, the lower gear 34 is welded and connected with one end of the lower connecting arm 36, and the other end of the lower connecting arm 36 is provided with a counterweight 361. The sum of the weight moments of the weights 361 of the multiple sets of rotating mechanisms 3 is balanced with the overall weight moment of the bridge 2. When the bridge body 2 rotates to a flat position under the action of external force, the upper connecting arm 35 and the lower connecting arm 36 correspondingly rotate to be horizontal and are folded with each other; when the bridge body 2 is rotated to the erect position by an external force, the upper and lower link arms 35 and 36 are rotated to the erect position, respectively, so as to be opened to each other.
Referring to fig. 5 and 6, when the bridge 2 is in the flat position, one end of the bridge 2 is supported by the upper connecting arm 35, the load is transferred to the gear frame 30 via the upper connecting arm 35 and the upper gear shaft 31, and then the load is transferred to the support beam 1 and its supporting members, such as the first bracket 41, by the gear frame 30, and at least a portion of the other end of the bridge 2 is lap-jointed and supported on the bridge supporting portion 201. When the bridge body 2 is in the erect position, the space between the movable bridge 300 and the inlet of the branch pipe is enough to meet the space required for installing the bulkhead 400 outside the inlet of the branch pipe. In this manner, bulkhead 400 may be installed without removing movable bridge 300.
Optionally, the movable bridge 300 further includes a pull rod (not shown), one end of which is hinged to the top surface of the bridge body 2, and the operator pulls the pull rod to operate the bridge body 2 to rotate around the upper gear shaft 31. After the bridge body 2 rotates, the upper gear 33 is driven to synchronously rotate by the upper connecting arm 35, and the lower gear 34 is driven to reversely rotate because the upper gear 33 and the lower gear 34 are mutually meshed, and the lower gear 34 drives the lower connecting arm 36 to synchronously rotate. By arranging the counterweight 361, the bridge body 2 is not rotated too fast in the process of pulling up or putting down the bridge body 2, and the operation safety is ensured.
Referring to fig. 7, the other end of the bridge 2 is provided with a notch 20, and a first bifurcation 21 and a second bifurcation 22 are formed on two sides of the notch. After the bulkhead 400 is removed, the bridge body 2 is put down to rotate to a flat position, the first bifurcation part 21 is adapted to extend into the inner side of the inlet of the bifurcated pipe 200 and is lapped and supported on the bridge body supporting part 201, the second bifurcation part 22 is lapped and supported on a concrete step at the side wall of the outer well body of the bifurcated pipe 200, at the moment, the top surface of the bridge body 2 is leveled with the top surface of the steel platform of the main road 100, a traffic road surface for connecting the main road 100 and the bifurcated pipe 200 is formed, the bifurcated pipe 200 is conveniently accessed by operation and maintenance vehicles and maintenance personnel, and the procedures of bridge deck interruption and temporary construction after the bulkhead is removed are omitted. After the overhaul is finished, the bridge body 2 is retracted, the bulkhead 400 can be installed, the inlet of the branch pipe 200 is plugged, the erected bridge body 2 also plays a role of a safety guard rail, and potential safety hazards of falling personnel and tools are eliminated.
The movable bridge of the invention utilizes the weight balancing principle, and can rapidly and stably pull up/put down the bridge body by means of the pull rod by means of manpower (1-2 people can pull up/put down the bridge body within 1 minute), so that the operation is time-saving, labor-saving, safe and convenient, and the whole operation process is almost free from vibration, impact and noise.
Example 2:
referring to fig. 1 and 2, the present invention further provides a water-conveyance tunnel maintenance working well, wherein inlets of branch pipes 200 are respectively disposed on the left and right sides of a main road 100 in the working well, and a movable bridge 300 according to any one of the above embodiments is disposed between the main road 100 and the inlets of the branch pipes 200 on both sides, so that all the advantages of the movable bridge provided by the above embodiments are provided, and the movable bridge is not described herein.
Referring to fig. 2-5, the main road 100 in the working well comprises two main beams 6 and two side beams 5 for supporting the steel platform, the two main beams 6 are parallel to each other, the inlets of the branch pipes 200 are arranged at an angle interval relative to the adjacent main beams 6 and parallel to the side beams 5 on the same side, one end of each side beam 5 is welded with the adjacent main beam 6, and the other end is fixed on the side wall of the well body. The body of each main girder 6 is supported and fixed by a plurality of second brackets 42 connected to the bottom of the working well. Specifically, the second support 42 includes a second upright 421 and a second support plate 422, in this embodiment, the second uprights 421 below the two main beams 6 are correspondingly disposed, and a second support plate 422 is disposed at the top of the two corresponding second uprights 421, the bottom of the second upright 421 is fixed at the bottom of the working well, and the main beams 6 are supported and fixed on the plurality of second support plates 422, and the connection manner includes, but is not limited to, bolting, welding, and the like. Further alternatively, the second upright 421 is made of a circular tube, and the second support plate 422 is respectively welded to the upper ends of the two corresponding circular tubes, so as to support the main beam 6; the lower end of the round pipe is welded with a lower connecting plate, holes are drilled in the lower connecting plate, and expansion bolts are installed to fix the second upright post 421 on the concrete floor at the bottom of the well. In this embodiment, the two main beams 6 are further connected by a connecting rib. The rest is not described with reference to the prior art.
The above description is only of the preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, within the scope of the present invention, should be covered by the protection scope of the present invention by making equivalent substitutions or modifications according to the technical scheme and the concept of the present invention.
Claims (10)
1. A movable bridge for connecting a main road in a working well with an inlet of a branch pipe to form a traffic road surface for vehicles and personnel to pass in and out of the branch pipe, comprising:
a bridge body;
the support beams are welded along the side beams at the corresponding sides of the main road, and the two ends of the support beams are respectively fixed on the main beams and the side walls of the well body at the corresponding sides of the main road;
the multiple groups of rotating mechanisms are arranged on the supporting beam at intervals and connected with one end of the bridge body, so that the bridge body can be rotatably connected with the supporting beam and can be rotatably switched between a tiling position and a standing position; wherein,
when the bridge body rotates to a flat position, at least one part of the other end of the bridge body is lapped and supported on the bridge body supporting part at the inner side of the inlet of the branch pipe;
when the bridge body rotates to the erection position, the space between the movable bridge and the inlet of the branch pipe meets the space required by installing the choke plug at the outer side of the inlet of the branch pipe.
2. The movable bridge of claim 1, wherein the bifurcated pipe inlets are angularly spaced relative to adjacent main beams and parallel to respective side beams, one end of each side beam being welded to the main beam and the other end being secured to the well side wall.
3. The movable bridge of claim 1, wherein the beam body of the support beam is further supported and fixed by a plurality of first brackets connected to the bottom of the working well.
4. A mobile bridge according to claim 3, wherein each first bracket comprises a first upright and a first support plate, the first support plate being secured to the top of the first upright, the bottom of the first upright being secured to the bottom of the work well;
the support beam is supported and fixed on a plurality of the first support plates.
5. The movable bridge according to claim 1, wherein each set of the rotating mechanism comprises a gear frame detachably fixed to a side of the support beam parallel to the inlet of the branch pipe, an upper gear and a lower gear are mounted on the gear frame, the upper gear and the lower gear are meshed with each other, and the gear shafts are parallel to the length direction of the support beam;
the upper gear is fixedly connected with one end of an upper connecting arm, the other end of the upper connecting arm is connected with one end of a bridge body, the lower gear is fixedly connected with one end of a lower connecting arm, and the other end of the lower connecting arm is connected with a counterweight;
when the bridge body rotates to a flat position under the action of external force, the upper connecting arm and the lower connecting arm correspondingly rotate to be horizontal and are folded with each other;
when the bridge body rotates to a standing position under the action of external force, the upper connecting arm and the lower connecting arm correspondingly rotate to stand and open each other.
6. The movable bridge of claim 5, wherein the gear frames are welded with rear backing plates, the back backing plates are welded with rear backing plates on the support beams at intervals, and the rear backing plates of each gear frame are detachably connected with the corresponding rear backing plates through a plurality of fasteners.
7. The movable bridge of claim 1, further comprising a tie rod, wherein one end of the tie rod is hinged to the top surface of the bridge body.
8. The movable bridge of claim 1, wherein the bridge body support is a concrete step disposed inside the inlet of the bifurcated pipe.
9. The movable bridge according to claim 1, wherein a notch is formed at the other end of the bridge body, and a first bifurcation and a second bifurcation are formed at two sides of the notch respectively;
when the bridge body is in a flat-laying position, the first bifurcation part is lapped and supported on the bridge body supporting part at the inner side of the bifurcation pipe inlet, and the second bifurcation part is lapped and supported on the side wall of the bifurcation pipe outer well body.
10. A water conveyance tunnel maintenance working well, wherein a branch pipe inlet is respectively arranged at the left side and the right side of a main road in the working well, and a movable bridge as claimed in any one of the claims 1-9 is arranged between each branch pipe inlet and the main road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311698367.0A CN117513129A (en) | 2023-12-12 | 2023-12-12 | Movable bridge and water delivery tunnel overhaul working well using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311698367.0A CN117513129A (en) | 2023-12-12 | 2023-12-12 | Movable bridge and water delivery tunnel overhaul working well using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117513129A true CN117513129A (en) | 2024-02-06 |
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ID=89753102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311698367.0A Pending CN117513129A (en) | 2023-12-12 | 2023-12-12 | Movable bridge and water delivery tunnel overhaul working well using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117513129A (en) |
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2023
- 2023-12-12 CN CN202311698367.0A patent/CN117513129A/en active Pending
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