Road and bridge load limiting protector

Abstract

The utility model provides a road and bridge load limiting protector, belongs to the technical field of road and bridge load limiting devices, and aims to solve the problems that an existing load limiting protector lacks an alarm device, a driver cannot be reminded in time when a vehicle is overweight, and inconvenience exists when the existing protector is installed. A pressure sensor is fixedly mounted in the middle of the upper end surface of the base plate; two connecting threaded holes are formed in the front and rear ends of the base plate respectively; the pressing plate is located over the base plate, the width of the pressing plate is the same as that of the base plate, and resistance strips are evenly installed on the upper end face of the pressing plate. According to the utility model, the upper end of the controller is fixedly provided with the sound alarm and the light alarm, and after the controller receives the overload signal of the pressure sensor, the sound alarm and the light alarm at the upper end of the controller can give out sound and light alarms to remind a driver that the automobile is overloaded and cannot continue to advance.

Description

Technical Field

[0001] The utility model belongs to the technical field of road and bridge load limit devices, and more specifically, particularly relates to a road and bridge load limit protector. Background Art

[0002] When a bridge is designed, there is a maximum load standard. When overweight vehicles drive on the bridge, it will damage the internal structure of the bridge, affect the service life of the bridge, and pose a safety hazard. Therefore, a load limit protector is set on the road in front of the bridge.

[0003] Based on the above, however, the existing load limit protectors still have the following two deficiencies in use:

[0004] First of all, the load limit protector lacks an alarm device. When the vehicle is overweight, the driver cannot be reminded in time, and if the driver fails to brake in time, it will cause damage to the load limit protector.

[0005] Secondly, the existing load limit protector is an integral body, which is not convenient for disassembly and assembly, making it inconvenient for workers to install the current protector. Summary of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides a road and bridge load limit protector to solve the problems that the existing load limit protector lacks an alarm device and cannot remind the driver in time when the vehicle is overweight, and it is also inconvenient to install the current protector.

[0007] The purpose and effect of a road and bridge load limit protector of the utility model are achieved by the following specific technical means: A road and bridge load limit protector includes a base plate;

[0008] Two groups of the base plates are symmetrically arranged. A pressure sensor is fixedly installed at the middle position of the upper end surface of the base plate, and two connecting threaded holes are respectively opened at the front and rear ends of the base plate;

[0009] A pressing plate, which is located directly above the base plate, has the same width as the base plate, and resistance strips are evenly installed on the upper end surface of the pressing plate;

[0010] Two groups of blocking plates are symmetrically arranged. Two groups of through holes are symmetrically opened on the surface of the blocking plates, and fluorescent stickers are evenly installed on the outer end surfaces of the blocking plates;

[0011] A first guiding plate, the outer end surface of which is arranged in an inclined structure. Two groups of the first guiding plates are symmetrically arranged, and the two first guiding plates are installed on the outer end surfaces of the front blocking plates;

[0012] The second guide plate, there are two groups of the second guide plates arranged symmetrically, the outer end face of the second guide plate is an inclined structure, a groove is opened at the middle position of the second guide plate, an electric cylinder is fixedly installed inside the groove, and the second guide plate is installed on the outer end face of the blocking plate at the rear position;

[0013] The controller, the controller is electrically connected to the pressure sensor on the upper end of the backing plate.

[0014] Furthermore, two device grooves are opened on the surface of the backing plate, the main body of the device groove is of a T-shaped structure, a sliding plate is slidably clamped inside the device groove, and the outer end face of the sliding plate fits with the inner end face of the device groove.

[0015] Furthermore, a connecting rod is fixedly installed on the upper end face of the sliding plate, the upper end of the connecting rod is fixedly connected to the pressing plate, and a compression spring is fixedly installed on the lower end face of the sliding plate.

[0016] Furthermore, two first connection holes are opened on the surface of the first guide plate, the front end of the bolt passes through the first connection hole and the through hole on the surface of the blocking plate and is threadedly connected to the connection threaded hole on the surface of the backing plate.

[0017] Furthermore, two second connection holes are opened on the surface of the second guide plate, the front end of the bolt passes through the second connection hole and the through hole on the surface of the blocking plate and is threadedly connected to the connection threaded hole on the surface of the backing plate.

[0018] Furthermore, a sound alarm and a light alarm are fixed on the upper end face of the controller, and the electric cylinder is electrically connected to the controller.

[0019] Furthermore, a limiting block is installed at the middle position of the left and right ends of the groove respectively, a lifting block is fixedly installed at the end of the telescopic part of the electric cylinder, and the outer end face of the lifting block is of an inclined structure.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] In the utility model, two first guide plates are installed on the outer end face of the front blocking plate through bolts, and two second guide plates are installed on the outer end face of the rear blocking plate through bolts. When the vehicle passes through the bridge, the left and right wheels of the vehicle can drive onto the surfaces of the two pressing plates through the first guide plates. When the vehicle drives onto the surface of the pressing plate, under the action of its own weight, the pressing plate will move downward and fit tightly with the backing plate. A pressure sensor is installed on the surface of the backing plate, and the pressure sensor is electrically connected to the controller. The pressure sensor can transmit the sensed vehicle weight to the controller to judge whether the vehicle is overloaded.

[0022] In addition, a sound alarm and a light alarm are fixedly installed on the top of the controller. After the controller receives the overload signal from the pressure sensor, the sound alarm and the light alarm on the top of the controller will emit sound and light alarms to remind the driver that the car is overloaded and cannot move forward.

[0023] In addition, through the setting of electrical connection between the controller and the electric cylinder, the controller can transmit the overload signal to the electric cylinder, and the telescopic part of the electric cylinder can drive the lifting block to move upward. After the lifting block is raised, it can intercept the wheel. After the car withdraws from the pressure plate, the telescopic part of the electric cylinder drives the lifting block to move downward. When the lower end of the lifting block is in contact with the limit block, the outer end face of the lifting block is flush with the outer end face of the second guide plate, which can ensure the normal passage of non-overloaded vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall device structure of the utility model.

[0025] Figure 2 It is a schematic diagram of the exploded structure of the overall device of the utility model.

[0026] Figure 3 It is a schematic diagram of the structure of the second guide plate of the utility model.

[0027] Figure 4 It is a schematic diagram of the connection structure between the second guide plate and the electric cylinder of the utility model.

[0028] Figure 5 It is a schematic diagram of the connection structure of the backing plate and the pressing plate of the utility model.

[0029] Figure 6 The utility model is a schematic diagram of the structure of a controller, a sound alarm and a light alarm.

[0030] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0031] 1. Pad; 101. Pressure sensor; 102. Installation slot; 103. Connecting threaded hole; 2. Press plate; 201. Resistance bar; 3. Sliding plate; 301. Connecting rod; 302. Compression spring; 4. Blocking plate; 401. Fluorescent sticker; 402. Through hole; 5. First guide plate; 501. First connecting hole; 6. Second guide plate; 601. Second connecting hole; 602. Groove; 603. Limit block; 7. Electric cylinder; 701. Lifting block; 8. Controller; 801. Sound alarm; 802. Light alarm. DETAILED DESCRIPTION

[0032] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0033] Embodiment 1:

[0034] As shown in the attached Figure 1 to the attached Figure 6 figure:

[0035] The present utility model provides a road and bridge load limit protector, including a backing plate 1;

[0036] Two groups of backing plates 1 are symmetrically arranged. A pressure sensor 101 is fixedly installed at the middle position of the upper end surface of the backing plate 1. Two connection threaded holes 103 are respectively opened at the front and rear ends of the backing plate 1;

[0037] A pressing plate 2, the pressing plate 2 is located directly above the backing plate 1. The width of the pressing plate 2 is the same as the width of the backing plate 1. Resistance strips 201 are evenly installed on the upper end surface of the pressing plate 2;

[0038] Two groups of blocking plates 4 are symmetrically arranged. Two groups of through holes 402 are symmetrically opened on the surface of the blocking plate 4. Fluorescent stickers 401 are evenly installed on the outer end surface of the blocking plate 4;

[0039] A first guide plate 5, the outer end surface of the first guide plate 5 is arranged in an inclined structure. Two groups of first guide plates 5 are symmetrically arranged. The two first guide plates 5 are installed on the outer end surface of the blocking plate 4 at the front position;

[0040] Two groups of second guide plates 6 are symmetrically arranged. The outer end surface of the second guide plate 6 is in an inclined structure. A groove 602 is opened at the middle position of the second guide plate 6. An electric cylinder 7 is fixedly installed inside the groove 602. The second guide plate 6 is installed on the outer end surface of the blocking plate 4 at the rear position;

[0041] A controller 8, the controller 8 is electrically connected to the pressure sensor 101 at the upper end of the backing plate 1.

[0042] Among them, two groups of device grooves 102 are opened on the surface of the backing plate 1. The main body of the device groove 102 is of a T-shaped structure. A sliding plate 3 is slidably clamped inside the device groove 102. The outer end surface of the sliding plate 3 fits with the inner end surface of the device groove 102. A connecting rod 301 is fixedly installed on the upper end surface of the sliding plate 3. The upper end of the connecting rod 301 is fixedly connected to the pressing plate 2. A compression spring 302 is fixedly installed on the lower end surface of the sliding plate 3. Under the elastic force of the compression spring 302, the pressing plate 2 can be separated from the backing plate 1.

[0043] Among them, two first connection holes 501 are opened on the surface of the first guide plate 5. The front end of the bolt passes through the first connection hole 501 and the through hole 402 on the surface of the blocking plate 4 and is threadedly connected to the connection threaded hole 103 on the surface of the backing plate 1. The first guide plate 5 and the blocking plate 4 are connected by bolts, which is convenient for workers to disassemble and assemble the first guide plate 5.

[0044] Among them, two second connection holes 601 are formed on the surface of the second guide plate 6. The front end of the bolt passes through the second connection hole 601 and the through hole 402 on the surface of the blocking plate 4 and is threadedly connected to the connection threaded hole 103 on the surface of the backing plate 1. The second guide plate 6 and the blocking plate 4 are connected by bolts, which facilitates the disassembly and assembly of the second guide plate 6 by workers.

[0045] Among them, a sound alarm 801 and a light alarm 802 are fixed on the upper end surface of the controller 8. The electric cylinder 7 is electrically connected to the controller 8. A limit block 603 is installed at the middle position of the left and right ends of the groove 602 respectively. The end of the telescopic part of the electric cylinder 7 is fixedly installed with a lifting block 701. The outer end surface of the lifting block 701 is of an inclined structure. When the pressure sensor 101 senses that the vehicle is overweight, the pressure sensor 101 can transmit a signal to the controller 8. The controller 8 can make the sound alarm 801 and the light alarm 802 at the upper end emit sound and light alarms, reminding the driver that the vehicle is overloaded and cannot move forward. Also, through the setting that the controller 8 is electrically connected to the electric cylinder 7, the controller 8 can transmit the overload signal to the electric cylinder 7. The telescopic part of the electric cylinder 7 can drive the lifting block 701 to move upward. After the lifting block 701 rises, it can play a role in intercepting the wheels.

[0046] The specific usage mode and function of this embodiment:

[0047] In the present utility model, workers can install two such devices at the front position of a bridge. When a vehicle passes through the bridge, it must pass through this device for weighing the vehicle's weight. Two first guiding plates 5 are installed on the outer end surface of the front blocking plate 4 by bolts, and two second guiding plates 6 are installed on the outer end surface of the rear blocking plate 4 by bolts. When a vehicle passes through the bridge, the left and right wheels of the vehicle can drive onto the surfaces of two pressing plates 2 through the first guiding plates 5. When the vehicle drives onto the surface of the pressing plate 2, under the action of its own weight, the pressing plate 2 will move downward and fit closely with the cushion plate 1. A pressure sensor 101 is installed on the surface of the cushion plate 1, and the pressure sensor 101 is electrically connected to the controller 8. The pressure sensor 101 can transmit the sensed vehicle weight to the controller 8. When the vehicle is not overloaded, the vehicle wheels can drive out from the second guiding plate 6. When the vehicle weight is overloaded, the controller 8 can make the upper sound alarm 801 and light alarm 802 emit sound and light alarms to remind the driver that the vehicle is overloaded and cannot continue to move forward. Also, through the setting that the controller 8 is electrically connected to the electric cylinder 7, the controller 8 can transmit the overload signal to the electric cylinder 7. The telescopic part of the electric cylinder 7 can drive the lifting block 701 to move upward. After the lifting block 701 rises, it can play a role in intercepting the wheels. When the vehicle exits from the pressing plate 2, the telescopic part of the electric cylinder 7 drives the lifting block 701 to move downward. When the lower end of the lifting block 701 fits with the limiting block 603, the outer end surface of the lifting block 701 is flush with the outer end surface of the second guiding plate 6, which can ensure the normal passage of non-overloaded vehicles.

Claims

1. A road and bridge load limit protector, characterized in that: The invention comprises a pad (1), wherein the pad (1) is symmetrically provided with two groups, a pressure sensor (101) is fixedly installed in the middle position of the upper end surface of the pad (1), and two connecting threaded holes (103) are respectively provided at the front and rear ends of the pad (1); a pressure plate (2), wherein the pressure plate (2) is located directly above the pad (1), the width of the pressure plate (2) is the same as the width of the pad (1), and the upper end surface of the pressure plate (2) is evenly installed with a resistance strip (201); a blocking plate (4), wherein the blocking plate (4) is symmetrically provided with two groups, the surface of the blocking plate (4) is symmetrically provided with two groups of through holes (402), and the outer end surface of the blocking plate (4) is evenly installed with a fluorescent sticker (401); a first guide plate (5), the outer end surface of the first guide plate (5) is arranged in an inclined structure, the first guide plate (5) is symmetrically provided in two groups, and the two first guide plates (5) are installed on the outer end surface of the blocking plate (4) at the front position; the second guide plate (6), the second guide plate (6) is symmetrically provided in two groups, the outer end surface of the second guide plate (6) is an inclined structure, a groove (602) is opened in the middle position of the second guide plate (6), an electric cylinder (7) is fixedly installed in the groove (602), and the second guide plate (6) is installed on the outer end surface of the blocking plate (4) at the rear position; a controller (8), the controller (8) is electrically connected to the pressure sensor (101) at the upper end of the pad (1).

2. A road bridge load limit protector as claimed in claim 1, characterized in that: The surface of the pad (1) is provided with two groups of installation grooves (102), the main body of the installation groove (102) is a T-shaped structure, a sliding plate (3) is slidably mounted inside the installation groove (102), and the outer end surface of the sliding plate (3) is in contact with the inner end surface of the installation groove (102).

3. A road bridge load limit protector as claimed in claim 2, characterized in that: A connecting rod (301) is fixedly mounted on the upper end surface of the sliding plate (3), the upper end of the connecting rod (301) is fixedly connected to the pressing plate (2), and a compression spring (302) is fixedly mounted on the lower end surface of the sliding plate (3).

4. A road bridge load limit protector as claimed in claim 1, characterized in that: The surface of the first guide plate (5) is provided with two first connection holes (501), and the front end of the bolt passes through the first connection hole (501) and the through hole (402) on the surface of the blocking plate (4) and is threadedly connected to the connection threaded hole (103) on the surface of the backing plate (1).

5. A road bridge load limit protector as claimed in claim 1, characterized in that: The surface of the second guide plate (6) is provided with two second connection holes (601), and the front end of the bolt passes through the second connection hole (601) and the through hole (402) on the surface of the blocking plate (4) and is threadedly connected to the connection threaded hole (103) on the surface of the backing plate (1).

6. A road bridge load limit protector as claimed in claim 1, characterized in that: A sound alarm (801) and a light alarm (802) are fixed to the upper end surface of the controller (8), and the electric cylinder (7) is electrically connected to the controller (8).

7. A road bridge load limit protector as claimed in claim 1, characterized in that: A limit block (603) is respectively installed at the middle position of the left and right ends of the groove (602), and a lifting block (701) is fixedly installed at the end of the telescopic part of the electric cylinder (7), and the outer end surface of the lifting block (701) is an inclined structure.

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