Road and bridge height limiting fence

Abstract

The utility model discloses a road bridge height limit fence, relates to height limit fence technical field, including two main frame that sets up oppositely, two main frame opposite one side is fixedly connected with two sliding chute plate, four sliding chute plate interiors are connected with sliding block in sliding mode, and the two sliding block that is located on the same side is one group, and the two sliding chute plate interiors are in sliding connection with the sliding block interiors in sliding connection with the sliding block interiors in sliding connection with the sliding block interiors in sliding connection with the sliding block interiors in sliding connection. And the opposite faces of each set of sliding blocks are fixedly connected with connecting plates, the back faces of the two connecting plates are fixedly connected with fixing blocks, a height limiting plate is fixedly connected between the two connecting plates, and height adjusting assemblies are arranged in the two main frames. The height of the height limiting plate can be conveniently and rapidly adjusted through the adjusting assembly under special conditions, the buffer plate and the pressure sensor are extruded by an over-high vehicle, then the alarm is started to give an alarm, a driver can be prompted to stop the vehicle in time, and greater loss is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of height limit fences, in particular to a height limit fence for a road bridge. Background Art

[0002] Height limit railings are a type of traffic facility that limits the height of vehicles to protect the safety of bridges and roads. The setting of height limit railings can guide large vehicles to choose other roads, avoid excessive pressure and damage to bridges and roads by large vehicles, and extend the service life of bridges and roads.

[0003] In some emergency situations, when special vehicles need to pass through height-restricted sections, traditional height-restricted barriers are difficult to adjust, which wastes a lot of time.

[0004] In my country, special vehicles, such as fire trucks and rescue vehicles, often need to cross height-restricted sections when performing emergency tasks. They need to carry various equipment when performing tasks, and the height of the vehicle body often exceeds the limit of general height-restricted barriers. However, traditional height-restricted barriers cannot be adjusted according to the actual height of special vehicles, resulting in a lot of time wasted and affecting the efficiency of emergency tasks.

[0005] Therefore, it is necessary to invent a road bridge height limit fence to solve the above problems. Utility Model Content

[0006] To this end, the utility model provides a road bridge height limit fence, which provides power through a set motor to drive two screw rods to rotate synchronously to adjust the height of the height limit plate, so as to solve the problems in the prior art.

[0007] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solutions: a road bridge height limit fence, comprising two oppositely arranged main frames, two slide plates are fixedly connected to the opposite sides of the two main frames, sliders are slidably connected inside the four slide plates, and the two sliders located on the same side form a group, the opposite sides of each group of sliders are fixedly connected to a connecting plate, the backs of the two connecting plates are fixedly connected to a fixing block, a limited height plate is fixedly connected between the two connecting plates, and height adjustment components are arranged inside the two main frames;

[0008] The height adjustment assembly includes a mounting frame, the mounting frame is fixedly connected to the outside of one of the main frames, the top of the mounting frame is fixedly connected to a motor, the output end of the motor is fixedly connected to a second active bevel gear, two first mounting seats are fixedly connected to opposite sides of the two main frames, and the two first mounting seats located on the same side form a group, each group of the first mounting seats is rotatably connected to the inside of a screw, and two fixing blocks are respectively threadedly sleeved on the outside of the corresponding screw, the outside of one of the screws is fixedly connected to a second driven bevel gear, and the second driven bevel gear is meshed with the second active bevel gear;

[0009] The tops of the two screws are fixedly connected with the first driven bevel gear, the tops of the two main frames are fixedly connected with the second mounting seats, the internal rotation connection shafts of the two second mounting seats, the external parts of the rotating shafts are fixedly connected with the first active bevel gears, and the two first active bevel gears are respectively meshed with the corresponding first driven bevel gears.

[0010] As a preferred solution of the utility model, the height limiting plate has multiple sliding rods movably sleeved inside, one end of the sliding rods is fixedly connected to a buffer plate, the other end of the sliding rods is fixedly connected to a baffle, and multiple buffer springs are fixedly connected between the baffle and the height limiting plate.

[0011] As a preferred solution of the utility model, a plurality of limiting sleeves are fixedly connected to the back side of the height limiting plate, and a plurality of sliding rods are movably sleeved inside corresponding limiting sleeves respectively.

[0012] As a preferred solution of the utility model, a pressure sensor is fixedly connected to the front of the height limit plate, and an alarm is fixedly connected to the top of one of the main frames.

[0013] As a preferred solution of the utility model, the tops of the two main frames are fixedly connected with a first protective cover, and the first driven bevel gear and the first driving bevel gear are located inside the first protective cover;

[0014] The top of the mounting frame is fixedly connected with a second protective cover, and the motor, the second driven bevel gear and the second driving bevel gear are all located inside the second protective cover.

[0015] As a preferred solution of the utility model, two rollers are rotatably connected to both sides of the sliding block, and the rollers are in contact with the inner wall of the slide plate.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. The second active bevel gear is driven to rotate by the starting motor, and then the corresponding screw is driven to rotate by the second driven bevel gear. Then, another screw is driven to rotate synchronously by two sets of mutually meshing first active bevel gears and first driven bevel gears and the rotating shaft. Then, the four sliders are driven to slide in the corresponding slide plates under the action of the threads, thereby driving the height limit plate to move up and down, and then the height of the height limit plate can be adjusted conveniently and quickly under special circumstances;

[0018] 2. The buffer plate is squeezed by the over-height vehicle, and then the slide bar is driven to slide in the limit sleeve, thereby stretching the buffer spring, which can play a buffering role and reduce damage to the vehicle and the height limit fence. Subsequently, when the buffer plate squeezes the pressure sensor, the alarm is activated to sound an alarm, thereby prompting the driver to stop in time to avoid causing greater losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall top view structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the first protective cover and the second protective cover of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the slider and the connecting plate of the utility model;

[0023] Figure 5 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 7 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0026] In the figure: 1. main frame; 2. slide plate; 3. slider; 4. connecting plate; 5. height limit plate; 6. first mounting seat; 7. screw; 8. first driven bevel gear; 9. second mounting seat; 10. rotating shaft; 11. first active bevel gear; 12. first protective cover; 13. motor; 14. second driven bevel gear; 15. second active bevel gear; 16. slide bar; 17. buffer plate; 18. baffle; 19. buffer spring; 20. limit sleeve; 21. alarm; 22. second protective cover; 23. roller; 24. pressure sensor; 25. mounting frame; 26. fixing block. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-7 A road bridge height limit fence shown in the figure comprises two main frames 1 arranged opposite to each other, two slide plates 2 are fixedly connected to the opposite sides of the two main frames 1, sliders 3 are slidably connected inside the four slide plates 2, and two sliders 3 located on the same side form a group, a connecting plate 4 is fixedly connected to the opposite sides of each group of sliders 3, a fixing block 26 is fixedly connected to the back sides of the two connecting plates 4, a height limit plate 5 is fixedly connected between the two connecting plates 4, and a height adjustment component is arranged inside the two main frames 1, and the height of the height limit plate 5 can be adjusted by the arranged adjustment component, so as to meet the passage under special circumstances;

[0029] The height adjustment component includes a mounting frame 25, which is fixedly connected to the outside of one of the main frames 1, and a motor 13 is fixedly connected to the top of the mounting frame 25. The output end of the motor 13 is fixedly connected to the second active bevel gear 15. Two first mounting seats 6 are fixedly connected to the opposite sides of the two main frames 1, and the two first mounting seats 6 located on the same side are a group. The inside of each group of first mounting seats 6 is rotatably connected to a screw rod 7, and two fixing blocks 26 are respectively threadedly sleeved on the outside of the corresponding screw rod 7, and the outside of one of the screw rods 7 is fixedly connected to the second driven bevel gear 14, and the second driven bevel gear 14 is meshed with the second active bevel gear 15. The motor 13 is provided to provide power, and the two screw rods 7 can be driven to rotate synchronously, so that the height of the height limit plate 5 can be adjusted;

[0030] The tops of the two screw rods 7 are fixedly connected to the first driven bevel gears 8, the tops of the two main frames 1 are fixedly connected to the second mounting seats 9, the insides of the two second mounting seats 9 are rotatably connected to the rotating shaft 10, the outsides of the rotating shaft 10 are fixedly connected to the first active bevel gears 11, and the two first active bevel gears 11 are respectively meshed with the corresponding first driven bevel gears 8. By setting two sets of mutually meshing first active bevel gears 11 and first driven bevel gears 8 and the rotating shaft 10, the two screw rods 7 can be driven to rotate synchronously.

[0031] Furthermore, in the above technical solution, a plurality of sliding rods 16 are movably sleeved inside the height limit plate 5, one end of the plurality of sliding rods 16 is fixedly connected to a buffer plate 17, the other end of the plurality of sliding rods 16 is fixedly connected to a baffle plate 18, and a plurality of buffer springs 19 are fixedly connected between the baffle plate 18 and the height limit plate 5. The plurality of buffer springs 19 can play a buffering role when an over-height vehicle scrapes the height limit plate 5, thereby preventing the vehicle and the height limit fence from being seriously damaged.

[0032] Furthermore, in the above technical solution, a plurality of limiting sleeves 20 are fixedly connected to the back of the height limiting plate 5, and a plurality of slide bars 16 are movably sleeved inside corresponding limiting sleeves 20, respectively. The plurality of limiting sleeves 20 can make the slide bars 16 more stable.

[0033] Furthermore, in the above technical solution, a pressure sensor 24 is fixedly connected to the front of the height limit plate 5, and an alarm 21 is fixedly connected to the top of one of the main frames 1. Through the set alarm 21 and pressure sensor 24, an alarm can be sounded when an over-height vehicle scrapes the height limit plate 5, prompting the driver to stop in time to avoid causing greater damage.

[0034] Furthermore, in the above technical solution, the tops of the two main frames 1 are fixedly connected with a first protective cover 12, and the first driven bevel gear 8 and the first driving bevel gear 11 are located inside the first protective cover 12;

[0035] The second protective cover 22 is fixedly connected to the top of the mounting frame 25 , and the motor 13 , the second driven bevel gear 14 and the second driving bevel gear 15 are all located inside the second protective cover 22 .

[0036] Furthermore, in the above technical solution, two rollers 23 are rotatably connected to both sides of the slider 3, and the rollers 23 are in contact with the inner wall of the slide plate 2. The provided rollers 23 can make the slider 3 slide more smoothly.

[0037] The working process of a road bridge height limit fence provided by the utility model when in use is as follows:

[0038] When the height of the height limiting plate 5 needs to be adjusted, the motor 13 is first started, and then the output end of the motor 13 drives the second active bevel gear 15 to rotate, and then the corresponding screw rod 7 is driven to rotate through the second driven bevel gear 14, and then the other screw rod 7 is driven to rotate synchronously through two sets of mutually meshing first active bevel gears 11 and first driven bevel gears 8 and the rotating shaft 10, and then the four sliders 3 are driven to slide in the corresponding slide plate 2 under the action of the thread, so that the height limiting plate 5 can be driven to move up and down, and then the height of the height limiting plate 5 can be conveniently and quickly adjusted under special circumstances;

[0039] When an over-height vehicle passes through the height limit barrier, first, the over-height vehicle squeezes the buffer plate 17, and then drives the slide bar 16 to slide in the limiting sleeve 20, thereby stretching the buffer spring 19, which can play a buffering role and reduce damage to the vehicle and the height limit barrier. Subsequently, when the buffer plate 17 squeezes the pressure sensor 24, the alarm 21 is activated to sound an alarm, thereby prompting the driver to stop in time to avoid causing greater losses.

[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A road bridge height limit fence, comprising two main frames (1) arranged opposite to each other, characterized in that: Two slide plates (2) are fixedly connected to the opposite sides of the two main frames (1), and sliders (3) are slidably connected inside the four slide plates (2), and the two sliders (3) located on the same side form a group, and the opposite sides of each group of sliders (3) are fixedly connected to a connecting plate (4), and the backs of the two connecting plates (4) are fixedly connected to a fixing block (26), and a limited height plate (5) is fixedly connected between the two connecting plates (4), and height adjustment components are arranged inside the two main frames (1); The height adjustment assembly comprises a mounting frame (25), the mounting frame (25) is fixedly connected to the outside of one of the main frames (1), the top of the mounting frame (25) is fixedly connected to a motor (13), the output end of the motor (13) is fixedly connected to a second active bevel gear (15), two first mounting seats (6) are fixedly connected to opposite sides of the two main frames (1), and the two first mounting seats (6) located on the same side form a group, the interior of each group of the first mounting seats (6) is rotatably connected to a screw rod (7), and two fixing blocks (26) are respectively threadedly sleeved on the outside of the corresponding screw rod (7), the outside of one of the screw rods (7) is fixedly connected to a second driven bevel gear (14), and the second driven bevel gear (14) is meshed with the second active bevel gear (15); The tops of the two screw rods (7) are fixedly connected to a first driven bevel gear (8), the tops of the two main frames (1) are fixedly connected to a second mounting seat (9), the insides of the two second mounting seats (9) are rotatably connected to a rotating shaft (10), the outsides of the rotating shaft (10) are fixedly connected to a first active bevel gear (11), and the two first active bevel gears (11) are respectively meshed with the corresponding first driven bevel gears (8).

2. A road bridge height limit fence according to claim 1, characterized in that: A plurality of sliding rods (16) are movably sleeved inside the height limiting plate (5), one end of the plurality of sliding rods (16) is fixedly connected to a buffer plate (17), the other end of the plurality of sliding rods (16) is fixedly connected to a baffle plate (18), and a plurality of buffer springs (19) are fixedly connected between the baffle plate (18) and the height limiting plate (5).

3. A road bridge height limit fence according to claim 1, characterized in that: A plurality of limiting sleeves (20) are fixedly connected to the back of the height limiting plate (5), and a plurality of sliding rods (16) are movably sleeved inside corresponding limiting sleeves (20) respectively.

4. A road bridge height limit fence according to claim 1, characterized in that: A pressure sensor (24) is fixedly connected to the front of the height limiting plate (5), and an alarm (21) is fixedly connected to the top of one of the main frames (1).

5. A road bridge height limit fence according to claim 1, characterized in that: The tops of the two main frames (1) are both fixedly connected with a first protective cover (12), and the first driven bevel gear (8) and the first driving bevel gear (11) are located inside the first protective cover (12); The top of the mounting frame (25) is fixedly connected to a second protective cover (22), and the motor (13), the second driven bevel gear (14) and the second driving bevel gear (15) are all located inside the second protective cover (22).

6. A road bridge height limit fence according to claim 1, characterized in that: Two rollers (23) are rotatably connected to both sides of the sliding block (3), and the rollers (23) are in contact with the inner wall of the sliding groove plate (2).

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