CN110904883A - Adjustable bridge height limiting device - Google Patents
Adjustable bridge height limiting device Download PDFInfo
- Publication number
- CN110904883A CN110904883A CN201910978253.9A CN201910978253A CN110904883A CN 110904883 A CN110904883 A CN 110904883A CN 201910978253 A CN201910978253 A CN 201910978253A CN 110904883 A CN110904883 A CN 110904883A
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- Prior art keywords
- height
- fixed
- limiting rod
- support frame
- height limiting
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- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000000712 assembly Effects 0.000 claims abstract description 11
- 238000000429 assembly Methods 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an adjustable bridge height limiting device, which comprises a support frame, a height adjusting device, a width adjusting device and height limiting rod assemblies, wherein the support frame comprises a first support frame and a second support frame, the first support frame and the second support frame are symmetrically arranged at two sides of a bridge floor inlet, the height adjusting device is divided into two groups and respectively arranged in the first support frame and the second support frame, the height adjusting device at the two sides is symmetrically arranged, the height limiting rod assemblies are used for adjusting the height through the height adjusting device, the height limiting rod assemblies are divided into two groups and respectively arranged on the height adjusting device at the two sides, each group of height limiting rod assemblies comprises an installation block, a rotating shaft, a sliding height limiting rod, a fixed height limiting rod, a spring and a rotation driving device, the width adjusting device is divided into two groups and respectively arranged at the bottom of the first support frame and the bottom of the second support frame, the invention can adjust the width between the support frames and the height of the height limiting rod, and has higher use safety.
Description
Technical Field
The invention relates to the technical field of height limiting rods, in particular to an adjustable bridge height limiting device.
Background
The height limiting device for the highway bridge is used for limiting the passing of overhigh vehicles, prevents that the vehicles are overweight due to the fact that goods loaded are accumulated to be overhigh, and damages the bridge, but because of the existence of the height limiting rod, special emergency vehicles such as large emergency vehicles, rescue vehicles and military vehicles cannot pass through in time to bring inconvenience, and even influence is great.
Furthermore, the existing height-limiting rod is generally rigid, and a very serious traffic accident often occurs when a driver makes a wrong judgment to hit the height-limiting rod, so that the existing height-limiting rod needs to be improved.
Disclosure of Invention
The invention aims to provide an adjustable bridge height limiting device, which can adjust the width between supporting frames and the height of a height limiting rod, so that special emergency vehicles such as large emergency vehicles, rescue vehicles, military vehicles and the like can pass through in time, and the height limiting rod assembly adopts a splicing structure, so that when the vehicle is firstly buffered by a spring after colliding with the height limiting rod and still cannot stop, the head can push the height limiting rod assembly from the middle, the safety of a driver is ensured, and the use safety is higher.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a bridge limit for height device with adjustable, includes support frame, height adjusting device, width adjusting device and limit for height pole subassembly, the support frame includes first support frame and second support frame, the setting of first support frame and second support frame symmetry is in the both sides of bridge floor entrance, height adjusting device is total two sets of and sets up respectively inside first support frame, second support frame, and the height adjusting device symmetry of both sides sets up, limit for height pole subassembly carries out height control through height adjusting device.
The utility model discloses a high-speed reducer, including installation piece, pivot, slip limit for height pole, fixed limit for height pole, spring and rotation drive arrangement, limit for height pole subassembly is total two sets of and sets up respectively on the high adjusting device of both sides, and every limit for height pole subassembly of group is including installation piece, pivot, slip limit for height pole, fixed limit for height pole, spring and rotation drive arrangement, the pivot level is rotated and is connected between two mounting panels of installation piece, the one end of pivot is passed behind the mounting panel and is fixed with rotation drive arrangement's output, fixed limit for height pole is fixed in the pivot, slip limit for height pole and fixed limit for height pole parallel arrangement and sliding connection are in the pivot, the spring housing is established in the.
The width adjusting devices are divided into two groups and are respectively arranged at the bottoms of the first supporting frame and the second supporting frame.
Preferably, height adjusting device includes height adjusting motor, lead screw, slider and a pair of slide bar, height adjusting motor fixes the inside bottom at the support frame, the vertical inside that sets up at the support frame of lead screw, the top of lead screw is rotated with the inner chamber roof of support frame and is connected, the lower extreme of lead screw is rotated and is passed behind the inner chamber diapire of support frame and is fixed with height adjusting motor's output shaft, and is a pair of the slide bar with lead screw parallel arrangement, the both ends of slide bar are fixed on the inner chamber wall of support frame, slider and lead screw threaded connection, slider and slide bar sliding connection, the installation piece is fixed on the slider.
Preferably, a plurality of baffles are fixed at the opposite ends of the sliding height-limiting rods at the two sides, and the baffles at the two sides are mutually stacked and inserted to form an integral structure with the thickness equivalent to that of the sliding height-limiting rods.
Preferably, a plurality of baffles are fixed at the opposite ends of the fixed height-limiting rods at the two sides, and the baffles at the two sides are mutually stacked and inserted to form an integral structure with the thickness equivalent to that of the fixed height-limiting rods.
Preferably, the rotation driving device comprises a worm wheel, a worm and a driving motor, the worm wheel is fixed at the end of the rotating shaft, the worm is rotatably arranged on one side of the worm wheel and meshed with the worm wheel, the driving motor is fixed on the outer wall of the mounting plate, and the worm is fixedly connected with an output shaft of the driving motor.
Preferably, each group of width adjusting devices comprises a driving trolley and a guide rail, the driving trolley is fixed at the bottom of the support frame and is driven by electricity, and the driving trolley moves on the guide rail.
Preferably, a warning board is fixed on the sliding height limiting rod.
Preferably, the section of the rotating shaft is a regular hexagon, and the surface of the rotating shaft is smooth.
Compared with the prior art, the invention has the following beneficial effects:
the invention can adjust the width between the support frames and the height of the height limiting rod, so that special emergency vehicles such as large emergency vehicles, rescue vehicles, military vehicles and the like can pass through in time;
the height limiting rod assembly is of a splicing structure, when a vehicle collides with the sliding height limiting rod, the sliding height limiting rod is firstly buffered by a spring and cannot be stopped, the vehicle head can jack the height limiting rod assembly from the middle baffle plate, the safety of a driver is ensured, and the use safety is high;
when the vehicle needing to pass through is too high, the fixed height limiting rod and the sliding height limiting rod can rotate upwards along with the rotating shaft, and the rotating shaft is driven by the rotating driving device, so that the height limiting rod assembly can be temporarily disconnected to enable the vehicle to pass through;
the rotation driving device of the invention adopts a worm gear structure, can generate enough torque and can keep the rotating shaft stable.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic front cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is an enlarged view taken at B of FIG. 3 in accordance with the present invention;
FIG. 5 is a schematic view of another state of FIG. 3 according to the present invention;
in the figure: 1-a first support frame, 2-a second support frame, 3-a mounting block, 4-a rotating shaft, 5-a sliding height-limiting rod, 6-a fixed height-limiting rod, 7-a spring, 8-a screw rod, 9-a sliding block, 10-a sliding rod, 11-a baffle, 12-a worm wheel, 13-a worm, 14-a driving motor, 15-a driving trolley, 16-a guide rail, 17-a warning board and 18-a height adjusting motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an adjustable bridge height limiting device comprises a support frame, height adjusting devices, width adjusting devices and height limiting rod assemblies, wherein the support frame comprises a first support frame 1 and a second support frame 2, the first support frame 1 and the second support frame 2 are symmetrically arranged at two sides of a bridge deck entrance, the height adjusting devices are arranged in two groups and are respectively arranged inside the first support frame 1 and the second support frame 2, the height adjusting devices at two sides are symmetrically arranged, the height of the height limiting rod assemblies is adjusted through the height adjusting devices,
the height limiting rod assemblies are divided into two groups and are respectively arranged on the height adjusting devices on two sides, each group of height limiting rod assemblies comprises an installation block 3, a rotating shaft 4, a sliding height limiting rod 5, a fixed height limiting rod 6, a spring 7 and a rotation driving device, the rotating shaft 4 is horizontally and rotatably connected between the two installation plates of the installation block 3, one end of the rotating shaft 4 penetrates through the installation plates and then is fixed with the output end of the rotation driving device, the fixed height limiting rod 6 is fixed on the rotating shaft 4, the sliding height limiting rod 5 and the fixed height limiting rod 6 are arranged in parallel and are slidably connected on the rotating shaft 4, and the spring 7 is sleeved on the rotating shaft 4 between the sliding height limiting rod 5 and the fixed height limiting rod 6;
the width adjusting devices are divided into two groups and are respectively arranged at the bottoms of the first support frame 1 and the second support frame 2.
Preferably, height adjusting device includes height adjusting motor 18, lead screw 8, slider 9 and a pair of slide bar 10, height adjusting motor 18 is preferably stopper thunder 42HS08 step motor, and height adjusting motor 18 fixes the inside bottom at the support frame, the vertical inside that sets up at the support frame of lead screw 8, the top of lead screw 8 rotates with the inner chamber roof of support frame to be connected, the lower extreme of lead screw 8 rotates to pass behind the inner chamber diapire of support frame and is fixed with height adjusting motor 18's output shaft, and is a pair of slide bar 10 with lead screw 8 parallel arrangement, the both ends of slide bar 10 are fixed on the inner chamber wall of support frame, slider 9 and lead screw 8 threaded connection, slider 9 and slide bar 10 sliding connection, installation piece 3 is fixed on slider 9.
Preferably, a plurality of baffles 11 are fixed at opposite ends of the sliding height-limiting rods 5 on both sides, and the baffles 11 on both sides are stacked and inserted into each other to form an integral structure with a thickness equivalent to that of the sliding height-limiting rods 5.
Preferably, a plurality of baffles 11 are fixed at the opposite ends of the fixed height-limiting rods 6 at the two sides, and the baffles 11 at the two sides are mutually stacked and inserted to form an integral structure with the thickness equivalent to that of the fixed height-limiting rods 6.
Preferably, the rotation driving device comprises a worm wheel 12, a worm 13 and a driving motor 14, the worm wheel 12 is fixed at the end of the rotating shaft 4, the worm 13 is rotatably arranged at one side of the worm wheel 12 and is meshed with the worm wheel 12, the driving motor 14 is preferably a demark D180M-O250030C-E direct current servo motor, the driving motor 14 is fixed on the outer wall of the mounting plate, and the worm 13 is fixedly connected with the output shaft of the driving motor 14.
Preferably, each group of width adjusting devices comprises a driving trolley 15 and a guide rail 16, the driving trolley 15 is fixed at the bottom of the support frame, the driving trolley 15 is driven by electricity, and the driving trolley 15 moves on the guide rail 16.
Preferably, a warning board 17 is fixed on the sliding height limiting rod 5.
Preferably, the section of the rotating shaft 4 is a regular hexagon, and the surface of the rotating shaft 4 is smooth.
The working principle is as follows: the invention can adjust the width between the supporting frames and the height of the height limiting rod, so that special emergency vehicles such as large emergency vehicles, rescue vehicles, military vehicles and the like can pass through in time;
the height limiting rod assembly adopts a splicing structure, when a vehicle collides with the sliding height limiting rod 5, the vehicle is firstly buffered by the spring 7 and still cannot stop, the vehicle head can jack the height limiting rod assembly from the middle baffle 11, so that the safety of a driver is ensured, and the use safety is higher;
when a vehicle needing to pass through is too high, the fixed height limiting rod 6 and the sliding height limiting rod 5 can rotate upwards along with the rotating shaft 4, and the rotating shaft 4 is driven by the rotating driving device, so that the height limiting rod assembly can be temporarily disconnected to enable the vehicle to pass through;
the rotation driving device of the invention adopts a worm gear structure, can generate enough torque and can keep the rotating shaft 4 stable.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a bridge limit for height device with adjustable, includes support frame, height adjusting device, width adjusting device and limit for height pole subassembly, its characterized in that: the supporting frames comprise a first supporting frame (1) and a second supporting frame (2), the first supporting frame (1) and the second supporting frame (2) are symmetrically arranged at two sides of an entrance of the bridge floor, two groups of height adjusting devices are arranged in the first supporting frame (1) and the second supporting frame (2) respectively, the height adjusting devices at the two sides are symmetrically arranged, and the height limiting rod assemblies are used for adjusting the height through the height adjusting devices;
the height limiting rod assemblies are divided into two groups and are respectively arranged on the height adjusting devices on two sides, each group of height limiting rod assemblies comprises an installation block (3), a rotating shaft (4), a sliding height limiting rod (5), a fixed height limiting rod (6), a spring (7) and a rotation driving device, the rotating shaft (4) is horizontally and rotatably connected between two installation plates of the installation block (3), one end of the rotating shaft (4) penetrates through the installation plates and then is fixed with the output end of the rotation driving device, the fixed height limiting rod (6) is fixed on the rotating shaft (4), the sliding height limiting rod (5) and the fixed height limiting rod (6) are arranged in parallel and are slidably connected onto the rotating shaft (4), and the spring (7) is sleeved on the rotating shaft (4) between the sliding height limiting rod (5) and the fixed height limiting rod (6);
the width adjusting devices are divided into two groups and are respectively arranged at the bottoms of the first supporting frame (1) and the second supporting frame (2).
2. The adjustable bridge height limiting device of claim 1, wherein: height adjusting device includes altitude mixture control motor (18), lead screw (8), slider (9) and a pair of slide bar (10), altitude mixture control motor (18) are fixed in the inside bottom of support frame, the vertical inside that sets up at the support frame in lead screw (8), the top of lead screw (8) is rotated with the inner chamber roof of support frame and is connected, the lower extreme of lead screw (8) is rotated and is passed behind the inner chamber diapire of support frame and is fixed with the output shaft of altitude mixture control motor (18), and is a pair of slide bar (10) with lead screw (8) parallel arrangement, the both ends of slide bar (10) are fixed on the inner chamber wall of support frame, slider (9) and lead screw (8) threaded connection, slider (9) and slide bar (10) sliding connection, installation piece (3) are fixed on slider (9).
3. The adjustable bridge height limiting device of claim 1, wherein: the opposite ends of the sliding height-limiting rods (5) on the two sides are fixed with a plurality of baffle plates (11), and the baffle plates (11) on the two sides are mutually stacked and inserted to form an integral structure with the thickness equivalent to that of the sliding height-limiting rods (5).
4. The adjustable bridge height limiting device of claim 1, wherein: the opposite ends of the fixed height-limiting rods (6) on the two sides are fixed with a plurality of baffle plates (11), and the baffle plates (11) on the two sides are mutually stacked and inserted to form an integral structure with the thickness equivalent to that of the fixed height-limiting rods (6).
5. The adjustable bridge height limiting device of claim 1, wherein: the rotation driving device comprises a worm wheel (12), a worm (13) and a driving motor (14), the worm wheel (12) is fixed at the end of the rotating shaft (4), the worm (13) is rotatably arranged on one side of the worm wheel (12) and meshed with the worm wheel (12), the driving motor (14) is fixed on the outer wall of the mounting plate, and the worm (13) is fixedly connected with an output shaft of the driving motor (14).
6. The adjustable bridge height limiting device of claim 1, wherein: each group of width adjusting devices comprises a driving trolley (15) and a guide rail (16), the driving trolley (15) is fixed at the bottom of the support frame, the driving trolley (15) is driven by electricity, and the driving trolley (15) moves on the guide rail (16).
7. The adjustable bridge height limiting device of claim 1, wherein: and a warning board (17) is fixed on the sliding height limiting rod (5).
8. The adjustable bridge height limiting device of claim 1, wherein: the section of the rotating shaft (4) is a regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910978253.9A CN110904883A (en) | 2019-10-15 | 2019-10-15 | Adjustable bridge height limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910978253.9A CN110904883A (en) | 2019-10-15 | 2019-10-15 | Adjustable bridge height limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110904883A true CN110904883A (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910978253.9A Pending CN110904883A (en) | 2019-10-15 | 2019-10-15 | Adjustable bridge height limiting device |
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| Country | Link |
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| CN (1) | CN110904883A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501613A (en) * | 2020-05-03 | 2020-08-07 | 张勇 | Height limiting device for bridge construction |
| CN111910552A (en) * | 2020-09-04 | 2020-11-10 | 中国电建集团贵阳勘测设计研究院有限公司 | Road height limiting frame |
| CN113047195A (en) * | 2020-12-29 | 2021-06-29 | 武汉力拓桥科防撞设施有限公司 | Automatic resilience reset flexible height limiting mechanism |
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| JP2002121716A (en) * | 2000-10-13 | 2002-04-26 | C T Mach Kk | Opening/closing gate device for traffic restriction |
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| CN111501613B (en) * | 2020-05-03 | 2021-12-24 | 张勇 | Height limiting device for bridge construction |
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| CN113047195A (en) * | 2020-12-29 | 2021-06-29 | 武汉力拓桥科防撞设施有限公司 | Automatic resilience reset flexible height limiting mechanism |
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