CN219690367U

CN219690367U - Height limiting assembly

Info

Publication number: CN219690367U
Application number: CN202222891727.6U
Authority: CN
Inventors: 王吉文; 黄晨; 吴涛; 张全阳
Original assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Current assignee: Central and Southern China Municipal Engineering Design and Research Institute Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-09-15
Anticipated expiration: 2032-10-31

Abstract

The utility model belongs to the technical field of height limiting structures, and provides a height limiting assembly, which comprises: a top plate; the top ends of the at least two vertical rods are fixedly connected with the top plate; the lifting baffle is arranged between the two vertical rods in a sliding manner; the threaded rod is arranged between the two vertical rods, a threaded sleeve is fixedly arranged at the end part of the lifting baffle, the threaded rod is inserted into the threaded sleeve, and the threaded rod is in threaded fit with the threaded sleeve; the speed reducer is fixedly arranged at the top of the top plate, and an output shaft of the speed reducer downwards penetrates through the top plate to be fixedly connected with the threaded rod in a coaxial manner; and the anti-collision buffer unit is fixedly arranged on the side wall of the lifting baffle plate. The height limiting assembly can buffer and unload collision impact force, impact damage to the height limiting device is reduced to a certain extent, and damage to a vehicle can be reduced.

Description

Height limiting assembly

Technical Field

The utility model belongs to the technical field of height limiting structures, and particularly relates to a height limiting assembly.

Background

The limit for height frame mainly used bridge, culvert, tunnel entrance's portal frame is the steel construction welding generally and forms, plays the effect of protection bridge, culvert, tunnel, has the bill-board on it, marks limited height meter number for suggestion vehicle, and in municipal bridge construction, in order to the safety of bridge road, need use limit for height device to carry out limit for height to the vehicle that goes and goes.

However, when the existing height limiting device is impacted by the collision of the ultrahigh vehicle, the impact force cannot be buffered and unloaded, so that the phenomenon that the height limiting device is extremely easy to deform and damage is caused, even if a driver finds the height limiting device, the height limiting device can be directly damaged by inertial impact after braking, the use safety of the height limiting device is reduced, and meanwhile, the vehicle is also greatly damaged.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the height limiting assembly which can buffer and unload the impact force, reduce the impact damage to the height limiting device to a certain extent and reduce the damage to the vehicle.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a height limiting assembly, comprising:

a top plate;

at least two upright rods which are arranged in parallel, wherein the two upright rods are fixedly arranged on the ground, and the top ends of the two upright rods are fixedly connected with the top plate;

the lifting baffle is arranged between the two vertical rods in a sliding manner;

the threaded rod is arranged between the two vertical rods, a threaded sleeve is fixedly arranged at the end part of the lifting baffle, the threaded rod is inserted into the threaded sleeve, and the threaded rod is in threaded fit with the threaded sleeve;

the speed reducer is fixedly arranged at the top of the top plate, and an output shaft of the speed reducer downwards penetrates through the top plate to be fixedly connected with the threaded rod in a coaxial manner;

and the anti-collision buffer unit is fixedly arranged on the side wall of the lifting baffle plate.

Preferably, two threaded rods are arranged between the two vertical rods, the threaded sleeves are fixedly arranged at two ends of the lifting baffle, and the two threaded rods are respectively inserted into the threaded sleeves at two ends of the lifting baffle.

Preferably, the anti-collision buffer unit comprises an anti-collision plate and a cylinder barrel, wherein the anti-collision plate is arranged on the front side of the lifting baffle, the cylinder barrel is fixedly installed on the front side wall of the lifting baffle, a piston rod is slidably arranged in the cylinder barrel, the outer end of the piston rod extends to the outer side of the cylinder barrel and is fixedly connected with the anti-collision plate, a spring is arranged in the cylinder barrel, the outer end of the spring is in butt joint with the inner end of the piston rod, and the inner end of the spring is in butt joint with the front side wall of the lifting baffle.

Preferably, the anti-collision plate is a rubber plate.

Preferably, the crash panel is an aluminum alloy plate.

Preferably, a buffer speed reducer is installed on the ground between the two vertical rods.

Preferably, the buffering speed reducer comprises a speed reducing bottom plate, the speed reducing bottom plate is fixedly arranged on the ground between the two vertical rods, and a plurality of speed reducing protrusions are arranged on the upper surface of the speed reducing bottom plate.

Preferably, the speed reduction bottom plate is provided with an assembly hole, and the bottom of the piston rod is rotatably inserted in the assembly hole.

Preferably, the top of the top plate is fixedly provided with an LED display screen, a PLC (programmable logic controller), a laser range finder and an alarm, and the PLC is respectively and electrically connected with the LED display screen, the alarm and the laser range finder.

Preferably, a rainproof support is fixedly arranged at the top of the top plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. the height limiting assembly provided by the utility model can be installed on a bridge, can be installed at an inlet of the bridge, can be installed in the middle of the bridge, can be installed at an outlet of the bridge, and can drive the lifting baffle to move upwards or downwards by starting the speed reducer after the height limiting assembly is installed, so that the purpose of adjusting the height of the lifting baffle is achieved, and the height limiting assembly is applicable to various different scenes. When vehicles with the loading height higher than the limiting height pass through, under the action of the anti-collision buffer unit, the collision buffer treatment can be carried out, so that the vehicles can be prevented from directly colliding with the lifting baffle, the lifting baffle is prevented from being directly damaged, and meanwhile, the damage to the vehicles can be reduced.

2. According to the height limiting assembly, when a vehicle passes through the buffering speed reducing piece, the vehicle can be decelerated, and the use safety of the height limiting assembly can be improved.

3. According to the height limiting assembly provided by the utility model, the laser range finder can measure the height of a vehicle to be passed, and the signal is transmitted to the LED display screen and the alarm through the PLC to carry out alarm reminding and display reminding, so that the effect of dual reminding a driver is achieved, and the use safety of the height limiting assembly is greatly improved.

4. The height limiting assembly provided by the utility model has the advantages that the rainproof support can be used for protecting equipment such as a speed reducer, an LED display screen, a PLC (programmable logic controller), a laser range finder, two alarms and the like in rainy days.

Drawings

FIG. 1 is a schematic front view of a height limiting assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic top view of a portion of a height limiting assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a front view of a height limiting assembly according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view of a buffering speed reducer of a height limiting assembly according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1. a top plate; 2. a vertical rod; 3. lifting a baffle; 4. a speed reducer; 5. a threaded rod; 6. a thread sleeve; 7. a buffering speed reducer; 701. a deceleration base plate; 7011. a fitting hole; 702. a deceleration protrusion; 8. an anti-collision buffer unit; 801. an anti-collision plate; 802. a cylinder; 803. a piston rod; 804. a spring; 9. an LED display screen; 10. a PLC controller; 11. a laser range finder; 12. an alarm; 13. and a rainproof bracket.

Detailed Description

The present utility model will be described in further detail with reference to specific examples so as to more clearly understand the present utility model by those skilled in the art.

It should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, unless otherwise specifically indicated and defined. The specific meaning of such terms in this patent will be understood by those of ordinary skill in the art as the case may be.

In order to reduce collision damage of a vehicle to a height limiting device, the embodiment provides a height limiting assembly, as shown in fig. 1, including:

a top plate 1;

the vertical rods 2 are arranged in parallel, the two vertical rods 2 are fixedly arranged on the ground, and the top ends of the two vertical rods 2 are fixedly connected with the top plate 1;

the lifting baffle plate 3 is arranged between the two vertical rods 2 in a sliding manner;

the threaded rod 5 is arranged in parallel with the vertical rods 2, the threaded rod 5 is arranged between the two vertical rods 2, a thread sleeve 6 is fixedly arranged at the end part of the lifting baffle 3, the threaded rod 5 is inserted into the thread sleeve 6, and the threaded rod 5 is in threaded fit with the thread sleeve 6;

the speed reducer 4 is fixedly arranged at the top of the top plate 1, and an output shaft of the speed reducer 4 downwards penetrates through the top plate 1 and is fixedly connected with the threaded rod 5 in a coaxial manner;

and the anti-collision buffer unit 8 is fixedly arranged on the side wall of the lifting baffle 3.

The height limiting assembly provided by the embodiment can be installed on a bridge, can be installed at an inlet of the bridge, can also be installed in the middle of the bridge, can also be installed at an outlet of the bridge, and can drive the threaded rod 5 to rotate by starting the speed reducer 4 after the height limiting assembly is installed, and further can enable the lifting baffle 3 to move up and down along with the rotation of the threaded rod 5 because the lifting baffle 3 can slide between the two upright rods 2. Thereby adjusting the height position of the lifting baffle plate 3 so that the height limiting device can be suitable for a plurality of different scenes.

When a vehicle with a loading height higher than a limiting height passes, if a driver of the vehicle fails to brake in time so that the vehicle collides with the height limiting assembly, the anti-collision unit 8 can play a certain role in buffering the collision, and the vehicle can be prevented from directly colliding with the lifting baffle plate 3, so that the lifting baffle plate 3 is directly damaged. Meanwhile, the collision prevention unit 8 can reduce collision loss to the vehicle and has a certain protection effect on drivers.

In this embodiment, two threaded rods 5 are disposed between two upright rods 2, two ends of the lifting baffle 3 are fixedly provided with threaded sleeves 6, and two threaded rods 5 are respectively inserted into the threaded sleeves 6 at two ends of the lifting baffle 3.

The setting like this, after two speed reducers 4 work with the frequency, through two the rotation of threaded rod 5, can drive the lift baffle 3 rises or descends to reach the effect of adjusting the height of lift baffle 3, two in addition threaded rod 5 can make the removal of lift baffle 3 is more stable.

In some embodiments, the anti-collision unit 8 may be a spring buffer device, and the anti-collision unit 8 may be an air cushion protection device, so as to play a role in buffering a vehicle collision.

In this embodiment, as shown in fig. 2, the anti-collision buffer unit 8 includes an anti-collision plate 801 and two cylinders 802, the anti-collision plate 801 is disposed on the front side of the lifting baffle 3, the cylinders 802 are fixedly mounted on the front side wall of the lifting baffle 3, a piston rod 803 is slidably disposed in the cylinders 802, the outer ends of the piston rods 803 extend to the outer sides of the cylinders 802 and are fixedly connected with the anti-collision plate 801, a spring 804 is disposed in the cylinders 802, the outer ends of the spring 804 are in abutting connection with the inner ends of the piston rods 803, and the inner ends of the spring 804 are in abutting connection with the front side wall of the lifting baffle 3.

When a vehicle collides with the anti-collision plate 801, the anti-collision plate 801 moves towards the position close to the lifting baffle plate 3, so that the two piston rods 803 are extruded, the piston rods 803 are contracted inwards towards the cylinder barrel 802, at the moment, the springs 804 are elastically deformed to be compressed and shortened by the extrusion force of the piston rods 803, in the process, the springs 804 can absorb the impact force of the vehicle, after the impact force disappears, the springs 804 can stretch and recover, the piston rods 803 are ejected outwards, the anti-collision plate 801 is ejected outwards, and the anti-collision plate 801 is recovered. Therefore, the anti-collision buffer unit 8 is arranged to reduce the impact damage to the lifting baffle 3 and the damage to the vehicle.

In some embodiments, the impact plate 801 may be a rubber plate. The rubber plate has softer texture, so that the loss of collision can be further reduced. The anti-collision plate 801 can be an aluminum alloy plate, and the aluminum alloy plate is corrosion-resistant, good in stability and long in service life.

In addition, in this embodiment, as shown in fig. 1 and 4, a buffer and decelerator 7 is installed on the ground between the two upright posts 2. The buffer speed reducer 7 can be used for reducing the running speed of a passing vehicle and can also play a role in reminding a driver of reducing the speed.

Specifically, the buffering decelerator 7 includes a deceleration base plate 701, the deceleration base plate 701 is fixedly installed on the ground between the two upright posts 2, and a plurality of deceleration protrusions 702 are provided on the upper surface of the deceleration base plate 701. The arrangement of the deceleration projection 702 can further reduce the running speed of the vehicle.

In some embodiments, the buffering decelerator 7 may be disposed in front of the lifting baffle 3 to decelerate the vehicle in advance. Or may be disposed directly under the lifting baffle 3.

In this embodiment, the decelerating bottom plate 701 is disposed on the ground directly below the lifting baffle plate 3, the decelerating bottom plate 701 is provided with an assembly hole 7011, and the bottom of the piston rod 803 is rotatably inserted into the assembly hole 7011. The lifting baffle plate 3 is arranged in such a way, not only can the effect of reducing the speed be achieved, but also the lifting baffle plate 3 is more obvious, and the effect of reminding a driver is achieved.

Finally, in this embodiment, as shown in fig. 3, an LED display screen 9, a PLC controller 10, a laser range finder 11, and an alarm 12 are fixedly installed on the top of the top plate 1, and the PLC controller 10 is electrically connected with the LED display screen 9, the alarm 12, and the laser range finder 11, respectively.

Wherein, the LED display screen 9 can be fixedly arranged in the middle of the top plate 1.

The PLC controller 10 may be disposed on one side of the LED display 9, and the laser rangefinder 11 may be disposed on the other side of the LED display 9.

The top of the top plate 1 may be provided with two alarms 12, and the two alarms 12 may be respectively disposed at two ends of the top plate 1.

When the vehicle is about to pass through the height limiting assembly, the laser distance meter 11 can measure the height of the vehicle about to pass through and transmit the height data of the vehicle to the PLC 10, the PLC 10 compares the data with the preset height of the lifting baffle 3, judges whether the vehicle is over-height or not, then displays the data through the LED display screen 9, and alarms through the alarm 12.

For example: when the vehicle is not over-height, one side on the LED display screen 9 will display the real-time height of the lifting baffle 3, and the other side will display the height of the vehicle to be passed, at this time, after the data processing of the PLC controller 10, the font color displayed by the LED display screen 9 is green, then the PLC controller 10 transmits the signal to the alarm 12, the alarm 12 sends out a sound broadcast, and the broadcast content is: the vehicle is not over-high and is required to pass safely;

when the vehicle is over-height, one side of the LED display screen 9 can display the real-time height of the lifting baffle 3, and the other side can display the height of the vehicle to be passed, at this time, after the data processing of the PLC 10, the color of the font on the LED display screen 9 is red, then the PLC 10 transmits the signal to the alarm 12, the alarm 12 sends out sound broadcasting, and the alarm content is: the vehicle is overtravel and is required to walk around.

Under the above-mentioned effect, this limit for height subassembly can remind the driver through warning and two aspects of display to can make the vehicle driver who will pass can learn the difference in height of own vehicle and this limit for height subassembly, and know the security when passing, can overcome the condition of vehicle striking limit for height subassembly at driver's angle.

Wherein, the top of roof 1 fixed mounting has rain-proof support 13.

The rainproof support 13 can be used for rainproof protection on the speed reducer 4, the LED display screen 9, the PLC 10, the laser range finder 11 and the alarm 12, so that the service life of equipment is prolonged.

Mechanisms, components, and members not described in the specific structure of the present utility model are all existing structures already existing in the prior art. Can be purchased directly from the market.

The foregoing is merely a preferred embodiment of the present utility model, and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A height limiting assembly, comprising:

a top plate (1);

at least two upright rods (2) which are arranged in parallel, wherein the two upright rods (2) are fixedly arranged on the ground, and the top ends of the two upright rods (2) are fixedly connected with the top plate (1);

the lifting baffle (3) is arranged between the two vertical rods (2) in a sliding manner;

the threaded rods (5) are arranged in parallel with the vertical rods (2), the threaded rods (5) are arranged between the two vertical rods (2), a threaded sleeve (6) is fixedly arranged at the end part of the lifting baffle (3), the threaded rods (5) are inserted into the threaded sleeve (6), and the threaded rods (5) are in threaded fit with the threaded sleeve (6);

the speed reducer (4), the speed reducer (4) is fixedly arranged at the top of the top plate (1), and an output shaft of the speed reducer (4) downwards penetrates through the top plate (1) and is fixedly connected with the threaded rod (5) in a coaxial manner;

the anti-collision buffer unit (8), the anti-collision buffer unit (8) is fixedly arranged on the side wall of the lifting baffle plate (3);

the anti-collision buffer unit (8) comprises an anti-collision plate (801) and a cylinder barrel (802), wherein the anti-collision plate (801) is arranged on the front side of the lifting baffle (3), the cylinder barrel (802) is fixedly arranged on the front side wall of the lifting baffle (3), a piston rod (803) is arranged in the cylinder barrel (802) in a sliding mode, the outer end of the piston rod (803) extends to the outer side of the cylinder barrel (802) to be fixedly connected with the anti-collision plate (801), a spring (804) is arranged in the cylinder barrel (802), the outer end of the spring (804) is in butt joint with the inner end of the piston rod (803), and the inner end of the spring (804) is in butt joint with the front side wall of the lifting baffle (3);

and a buffering speed reducer (7) is arranged on the ground between the two vertical rods (2).

2. A height limiting assembly according to claim 1, wherein two threaded rods (5) are arranged between two upright rods (2), the threaded sleeves (6) are fixedly arranged at two ends of the lifting baffle plate (3), and the two threaded rods (5) are respectively inserted into the threaded sleeves (6) at two ends of the lifting baffle plate (3).

3. A height limiting assembly according to claim 1, wherein the anti-collision plate (801) is a rubber plate.

4. A height limiting assembly according to claim 1, wherein the bump guard (801) is an aluminium alloy plate.

5. A height-limiting assembly according to claim 1, characterized in that the buffer deceleration element (7) comprises a deceleration base plate (701), the deceleration base plate (701) being fixedly mounted on the ground between two of the uprights (2), the deceleration base plate (701) being provided with a plurality of deceleration projections (702) on its upper surface.

6. A height-limiting assembly according to claim 5, wherein the speed-reducing bottom plate (701) is provided with a mounting hole (7011), and the bottom of the piston rod (803) is rotatably inserted into the mounting hole (7011).

7. The height limiting assembly according to claim 1, wherein an LED display screen (9), a PLC (programmable logic controller) 10, a laser range finder (11) and an alarm (12) are fixedly arranged on the top of the top plate (1), and the PLC (10) is electrically connected with the LED display screen (9), the alarm (12) and the laser range finder (11) respectively.

8. A height-limiting assembly according to claim 7, wherein the top of the top plate (1) is fixedly provided with a rain-proof support (13).