Road and bridge load limiting protector

Abstract

The utility model relates to the technical field of road and bridge protection devices, in particular to a road and bridge load limiting protector which comprises a load bearing detection plate, and a lifting groove is formed in the center of the load bearing detection plate in a penetrating mode. After the weight of a vehicle is detected through the detection plate, whether the blocking plate is lifted or not is automatically controlled according to whether the vehicle is overweight or not, the blocking plate is lifted to make contact with a chassis of the vehicle, then the height of the vehicle is increased, the vehicle is prevented from making contact with the ground, and the overweight vehicle is limited and prevented from entering a limited road section; the limiting mechanism can be suitable for vehicles of different models, and damage caused by the fixed extension height of the limiting mechanism to the vehicle with a low bottom plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge protection devices, in particular to a road and bridge load limit protector. Background Art

[0002] Due to problems such as vehicle overloading and rolling over, damage to roads and bridges and even serious accidents often occur. In order to avoid similar accidents, in some road and bridge projects, in order to prevent vehicles that exceed the rated load of the bridge from forcibly going onto the bridge and causing damage to the bridge, measures such as height limit poles are adopted to limit the total weight of the vehicle by limiting the height of the vehicle loaded with cargo. However, due to the different cargoes carried, this method cannot effectively limit vehicle overloading, and the height limit poles are often damaged and fail.

[0003] Publication No. CN219218748U discloses a road bridge load limit protector, which can have a strong deceleration effect on overloaded vehicles and quickly brake them, and can effectively prevent overloaded vehicles from driving towards the front bridge. At the same time, it can control the first inflatable structure or the second inflatable structure to brake the front wheels or rear wheels of the vehicle respectively according to the overload conditions at both ends of the load-bearing plate, and is more suitable for road bridge load limit use. However, the use of this device has large limitations. Its main limiting means is to block the wheels by raising the speed reduction block to slow them down, and finally complete the speed limit of the vehicle. However, different vehicles have different chassis heights. During use, the lifting height of the speed reduction block cannot be effectively controlled. If it is too low, it cannot effectively limit the speed of large vehicles. If it is too high, it may cause damage to vehicles with low chassis, and it cannot be used flexibly. For this reason, we propose a road bridge load limit protector. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a road and bridge load limit protector.

[0005] The technical solution adopted by the utility model to solve the technical problem is a road bridge load limit protector, comprising a load-bearing detection plate, a lifting slot is provided through the center of the load-bearing detection plate, a blocking plate for lifting and blocking equipment is arranged in the lifting slot, and the bottom end of the blocking plate is installed at the extension end of the hydraulic rod;

[0006] A lifting base is provided on one side of the load-bearing detection plate, a storage groove is provided on the top surface of the lifting base, a blocking rod is installed inside the storage groove, and lifting side columns are fixedly connected to the bottom ends of both sides of the blocking rod, and the bottom ends of the two lifting side columns are installed on the top ends of the two telescopic rods.

[0007] By adopting the above technical solution, after the weight of the vehicle is detected by the detection plate, whether the barrier plate is raised is controlled automatically according to whether it is overweight. The barrier plate is raised to contact the chassis of the vehicle, thereby raising the height of the vehicle to prevent the vehicle from contacting the ground, thereby restricting overweight vehicles from entering restricted sections. It can be applied to vehicles of different models to prevent the fixed extension height of the restriction mechanism from causing damage to vehicles with lower bottom plates.

[0008] Specifically, the bottom end of the load-bearing detection plate is fixedly connected to a fixed bottom plate, and the four corners of the bottom end of the load-bearing detection plate are respectively fixedly installed with support frames.

[0009] By adopting the above technical solution, the base plate and the load-bearing detection plate are supported and fixed by the support frame.

[0010] Specifically, a buffer protection pad is arranged on the top surface of the blocking plate, and the bottom surface of the blocking plate is made of a steel plate.

[0011] By adopting the above technical solution, the vehicle chassis is contacted by the buffer protection pad to avoid damage to the vehicle, and the movement of the vehicle is restricted by the steel plate.

[0012] Specifically, a warning device is fixedly connected to one side of the blocking rod.

[0013] By adopting the above technical solution, the staff and the driver can be reminded whether they are overweight through the alarm.

[0014] Specifically, a pressure trigger plate is provided on the side of the load-bearing detection plate away from the blocking rod.

[0015] By adopting the above technical solution, when the pressure trigger plate is subjected to a weight higher than a preset weight, the starting device can be triggered to perform load detection on the vehicle.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The technical solution of the present application can be applied to vehicles of different models when the height of the lifting blocking device is fixed through the structural design of the load-bearing detection plate, fixed bottom plate, support frame, lifting groove, blocking plate and hydraulic rod to avoid the fixed extension height of the limiting mechanism causing damage to vehicles with lower bottom plates, thereby blocking overweight vehicles from entering restricted sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is an axonometric drawing of the utility model;

[0020] Figure 2 This is a schematic diagram of the structural installation of the load-bearing detection plate of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the lifting base of the utility model;

[0022] In the figure: 1. load-bearing detection plate; 2. fixed bottom plate; 3. support frame; 4. lifting slot; 5. blocking plate; 6. hydraulic rod; 7. lifting base; 8. storage slot; 9. telescopic rod; 10. lifting side column; 11. blocking rod; 12. warning device; 13. pressure trigger plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figure 1-3 The embodiment of the utility model provides a technical solution: a road bridge load limit protector, comprising a load-bearing detection plate 1, a lifting slot 4 is provided through the center of the load-bearing detection plate 1, a blocking plate 5 for lifting and blocking equipment is arranged in the lifting slot 4, and the bottom end of the blocking plate 5 is installed at the extension end of the hydraulic rod 6;

[0025] A lifting base 7 is provided on one side of the load-bearing detection plate 1, and a storage groove 8 is opened on the top surface of the lifting base 7. A blocking rod 11 is installed inside the storage groove 8. The bottom ends of both sides of the blocking rod 11 are fixedly connected with lifting side columns 10, and the bottom ends of the two lifting side columns 10 are installed on the top ends of the two telescopic rods 9.

[0026] When in use, after the weight of the vehicle is detected by the detection plate, the barrier plate is automatically controlled to rise or not according to whether it is overweight. The barrier plate is raised to contact the chassis of the vehicle, thereby raising the height of the vehicle to prevent the vehicle from touching the ground, thereby restricting overweight vehicles from entering restricted sections. It can be applied to vehicles of different models to prevent the fixed extension height of the restriction mechanism from causing damage to vehicles with lower bottom plates.

[0027] As shown in the figure, the bottom end of the load-bearing detection plate 1 is fixedly connected to a fixed bottom plate 2, and the four corners of the bottom end of the load-bearing detection plate 1 are respectively fixedly installed with support frames 3.

[0028] When in use, the base plate 2 and the load-bearing detection plate 1 are supported and fixed by the support frame 3 .

[0029] As shown in the figure, a buffer protection pad is arranged on the top surface of the blocking plate 5, and the bottom surface thereof is made of a steel plate.

[0030] When in use, the buffer protection pad contacts the vehicle chassis to avoid damage to the vehicle, and the steel plate is used to limit the movement of the vehicle.

[0031] As shown in the figure, a warning device 12 is fixedly connected to one side of the blocking rod 11.

[0032] When in use, the alarm 12 is used to remind the staff and the driver whether they are overweight.

[0033] As shown in the figure, a pressure trigger plate 13 is provided on the side of the load-bearing detection plate 1 away from the blocking rod 11 .

[0034] When in use, when the pressure trigger plate 13 bears a weight higher than a preset weight, the starting device can be triggered to perform load detection on the vehicle.

[0035] The working principle and use process of the utility model are as follows: first, the vehicle passes through the pressure trigger plate 13 and stays on the surface of the load-bearing detection plate 1. The pressure trigger plate 13 is subjected to pressure to open the trigger detection equipment and the equipment inside the lifting base 7 to operate. The load-bearing detection plate 1 and the fixed bottom plate 2 are supported and detect the weight of the vehicle through the support frame 3. The hydraulic rod 6 is activated by the signal sent by the pressure trigger plate 13 to push the blocking plate 5 to move upward and extend out of the plane of the lifting slot 4, pushing the blocking plate 5 to contact the bottom end of the vehicle, pushing the vehicle to move upward so that the wheels cannot contact the ground. At the same time, the telescopic rod 9 in the lifting base 7 operates to push the lifting side column 10 to rise, pushing the blocking rod 11 to extend out of the storage slot 8 until a certain height, completing the restriction on the vehicle. When the vehicle is overweight, the warning device 12 displays a red light to indicate that the vehicle cannot pass, and the staff needs to manually confirm whether to cancel the warning device 12, which will prompt a green light to indicate that the vehicle can pass.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A road bridge load limit protector, characterized in that: It comprises a load-bearing detection plate (1), a lifting groove (4) is provided through the center of the load-bearing detection plate (1), a blocking plate (5) for lifting and lowering a blocking device is arranged in the lifting groove (4), and the bottom end of the blocking plate (5) is mounted on the extended end of a hydraulic rod (6); A lifting base (7) is provided on one side of the load-bearing detection plate (1), a storage groove (8) is provided on the top surface of the lifting base (7), a blocking rod (11) is installed inside the storage groove (8), and lifting side columns (10) are fixedly connected to the bottom ends of both sides of the blocking rod (11), and the bottom ends of the two lifting side columns (10) are installed on the top ends of the two telescopic rods (9).

2. A road bridge load limit protector according to claim 1, characterized in that: The bottom end of the load-bearing detection plate (1) is fixedly connected to a fixed bottom plate (2), and the four corners of the bottom end of the load-bearing detection plate (1) are respectively fixedly mounted with support frames (3).

3. A road bridge load limit protector according to claim 1, characterized in that: The top surface of the blocking plate (5) is provided with a buffer protection pad, and the bottom end thereof is made of a steel plate.

4. A road bridge load limit protector according to claim 1, characterized in that: A warning device (12) is fixedly connected to one side of the blocking rod (11).

5. A road bridge load limit protector according to claim 1, characterized in that: A pressure trigger plate (13) is provided on a side of the load-bearing detection plate (1) away from the blocking rod (11).

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