Bridge height limiting device

Abstract

The utility model discloses a bridge height limiting device, and relates to the technical field of bridge height limiting devices. The air cylinder lifting assemblies are arranged at the tops of the left stand column and the right stand column respectively, and deflection buffer frame structures are arranged at the execution ends of the air cylinder lifting assemblies; the height limiting roller shaft is transversely arranged on the deflection buffer frame structure; and the wire height crosspiece assembly is mounted on the front side of the deflection buffer frame structure. By means of the line height crosspiece assemblies and the height limiting roller shafts which are distributed in the front-back direction and in a powerful and non-powerful double height limiting mode, the height limiting interception effect is guaranteed, meanwhile, the height limiting roller shafts making contact with a vehicle at first can absorb part of impact energy, damage to the vehicle and devices is reduced, and the risk of injury to people in the vehicle is reduced as much as possible.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge height restriction devices, specifically a bridge height restriction device. Background Technology

[0002] The core function of bridge height restriction is to act as a physical barrier to prevent oversized vehicles from passing. When the height of a vehicle exceeds the set value, the top of the vehicle will first hit the height restriction device.

[0003] However, the current fixed height restriction devices are powerful interception devices that cannot allow special over-height vehicles (such as fire trucks and disaster relief vehicles) to pass. Moreover, once they are hit, repair or replacement may cause traffic disruption, and the impact may cause significant damage to the vehicle.

[0004] Flexible height restriction warning devices mainly serve as warnings and reminders for minor contact, and are not a forceful interception method. However, this method cannot stop vehicles that force their way through, has weak protective capabilities, and is easily ignored or damaged.

[0005] Therefore, a bridge height restriction device is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a bridge height restriction device. This device uses front and rear distributed height-limiting crossbar components and height-limiting roller shafts to achieve a dual height restriction method of strong and non-strong force. This not only ensures the height restriction interception effect, but also allows the height-limiting roller shaft, which contacts the vehicle first, to absorb some of the impact energy, reducing damage to the vehicle and the device, and minimizing the risk of injury to the occupants of the vehicle.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a bridge height restriction device, comprising: left and right columns; cylinder lifting assemblies respectively disposed on the top of the left and right columns, wherein the actuator of the cylinder lifting assembly is provided with a deflection buffer frame structure; and a height restriction roller shaft transversely disposed on the deflection buffer frame structure, wherein when a vehicle collision occurs, the height restriction roller shaft deflects and buffers along the running direction of the deflection buffer frame structure to absorb part of the impact energy and reduce damage to the vehicle and the device; further comprising a line height crossbar assembly installed on the front side of the deflection buffer frame structure, wherein when the height restriction roller shaft deflects and buffers, the line height crossbar assembly can be triggered to forcefully intercept the vehicle in the front direction of travel.

[0008] Preferably, the left and right columns each include a column body and an assembly plate fixed to the bottom of each column body.

[0009] Preferably, each set of cylinder lifting assemblies includes an assembly column fixed to the top of the column body, a sliding groove is provided on the inner side of the assembly column, and a slider is provided in the sliding groove; and a cylinder body is provided on the top of the assembly column, and the output shaft of the cylinder body extends into the sliding groove and is fixed to the slider, serving as a driving source for the movement of the slider.

[0010] Preferably, each set of the deflection buffer frame structure includes a mounting plate fixed to the side wall of the slider, the mounting plate having a J-shaped groove; a transmission block slidably mounted inside the J-shaped groove; and a transmission rod rotatably mounted to the mounting plate via a rotating shaft provided on the mounting plate, the transmission rod having a transmission groove, wherein the transmission block is slidably mounted inside the transmission groove.

[0011] Preferably, the height-limiting roller shaft includes a shaft body disposed at the opposite ends of the transmission rods of the two sets of deflection buffer frame structures, and a plurality of roller bodies are rotatably mounted on the shaft body.

[0012] Preferably, each of the roller bodies has an identification sticker on its side wall.

[0013] Preferably, the height limit crossbar assembly includes brackets fixed to the front sides of two mounting plates, each bracket having an assembly frame fixed to its front section; a motor disposed on one side of the assembly frame, with the motor output end passing through a through hole in the assembly frame and fixed with a stop bar; and two sets of trigger switches, which are used to drive the two stop bars to move closer to and further away from each other when the vehicle hits the height limit roller axle.

[0014] Preferably, each set of trigger switches includes an electric telescopic rod disposed at the top of the J-shaped groove, and a pressure-sensitive switch is installed at the telescopic end of the electric telescopic rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses cylinder lifting components and deflection buffer frame structures installed on the top of the left and right vertical columns to form an inverted U-shaped height limiting device, which is combined with the horizontally distributed height limiting roller shafts assembled between the two sets of deflection buffer frame structures. The two sets of cylinder lifting components indirectly realize the height adjustment of the height limiting roller shaft by driving the deflection buffer frame structure at their lifting ends, so as to meet the different height limiting requirements of the height limiting device.

[0017] 2. As another embodiment of this utility model, the deflection buffer frame structure can drive the height-limiting roller shaft to deflect adaptively and buffer when the vehicle hits the height-limiting roller shaft, so as to absorb part of the impact energy. This non-forceful interception design not only reduces damage to the vehicle and the device, but also minimizes the risk of injury to the people inside the vehicle.

[0018] 3. As another embodiment of this utility model, the device uses two sets of deflection buffer frame structures with line height crossbar components installed on the front side. When the vehicle hits the height limiting roller axle, the device can simultaneously drive the line height crossbar components to run, so as to establish a strong interception structure on the front side of the height limiting roller axle. If necessary, it can forcefully prevent the vehicle from continuing to move forward, thus ensuring the interception effect of the device. Attached Figure Description

[0019] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a third-view three-dimensional structural diagram of the present invention;

[0022] Figure 4 This is a four-dimensional structural diagram of the present invention from a fourth perspective;

[0023] Figure 5 This is a disassembled structural diagram of the deflection buffer frame structure and the cylinder lifting assembly;

[0024] Figure 6 This is an enlarged schematic diagram of the deflection buffer structure.

[0025] In the diagram: 111, column; 112, assembly column; 1121, slide groove; 1122, slider; 113, mounting plate; 114, J-slot; 115, pressure-sensitive switch; 116, rotating shaft; 117, transmission rod; 118, transmission groove; 119, transmission block; 120, shaft; 121, roller body; 122, cylinder body; 123, bracket; 124, assembly frame; 125, motor; 126, stop lever; 127, assembly plate; 128, electric telescopic rod. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Please see Figures 1 to 6The present invention preferably provides the following technical solution: a bridge height restriction device, comprising: left and right columns; cylinder lifting assemblies respectively installed on the top of the left and right columns, the cylinder lifting assemblies having a deflection buffer frame structure at their actuating end; and a height restriction roller shaft transversely installed on the deflection buffer frame structure, wherein when a vehicle collision occurs, the height restriction roller shaft deflects and buffers along the running direction of the deflection buffer frame structure to absorb some of the impact energy and reduce damage to the vehicle and the device; and further comprising a line height crossbar assembly installed on the front side of the deflection buffer frame structure, wherein when the height restriction roller shaft deflects and buffers, the line height crossbar assembly can be triggered to forcefully intercept the vehicle in the direction of travel.

[0029] In this embodiment, the tops of the longitudinally distributed left and right columns are each equipped with a cylinder lifting assembly and a deflection buffer frame structure, while the laterally distributed height-limiting roller shafts are assembled between the two sets of deflection buffer frame structures to form an inverted U-shaped height-limiting device. Figure 1 , 2 As shown in Figures 3 and 4, the two sets of cylinder lifting components indirectly achieve the height adjustment of the height limiting roller shaft by driving the deflection buffer frame structure at the lifting end, so as to meet the different height limiting requirements of the height limiting device.

[0030] The deflection buffer structure can drive the height-limiting roller axle to deflect adaptively and buffer when a vehicle hits the height-limiting roller axle, so as to absorb part of the impact energy. This non-forceful interception design not only reduces damage to vehicles and equipment, but also minimizes the risk of injury to people inside the vehicle. At the same time, by intercepting over-height vehicles, it avoids vehicles directly hitting key parts such as bridge beams and supports, preventing damage, displacement or even collapse of the bridge structure, and ensuring the safety of traffic and service life of the bridge.

[0031] In addition, the line height crossbar components installed on the front side of the two sets of deflection buffer frame structures can simultaneously drive the line height crossbar components to operate when the vehicle hits the height limit roller axle, so as to establish a strong interception structure in front of the height limit roller axle, and forcefully prevent the vehicle from continuing to move forward when necessary, so as to ensure the interception effect of the device.

[0032] Furthermore, the left and right columns each include a column body 111, with an assembly plate 127 fixed to the bottom of each column body 111, combined with... Figure 1 , 2 As shown in Figure 3, this device achieves a stable assembly with the installation environment.

[0033] Example 2

[0034] In another embodiment of the present invention, each set of cylinder lifting components includes an assembly column 112 fixed to the top of the column 111, a sliding groove 1121 is provided on the inner side of the assembly column 112, and a slider 1122 is provided in the sliding groove 1121; and a cylinder body 122 is provided on the top of the assembly column 112, and the output shaft of the cylinder body 122 extends into the sliding groove 1121 and is fixed to the slider 1122, serving as a driving source for the movement of the slider 1122.

[0035] Combination Figure 1 , 2 As shown in Figure 5, the deflection buffer frame structure is installed on the slider 1122, and the slider 1122 is longitudinally slidably installed inside the slide groove 1121 and fixed to the output shaft of the cylinder body 122. Therefore, when the cylinder body 122 extends and retracts, the height of the deflection buffer frame structure, the height limiting roller shaft on the deflection buffer frame structure, and the line height crossbar assembly can be adjusted over a wide range.

[0036] Example 3

[0037] As another embodiment of this utility model, each deflection buffer frame structure includes a mounting plate 113 fixed to the side wall of the slider 1122, the mounting plate 113 having a J-shaped groove 114; a transmission block 119 slidably mounted inside the J-shaped groove 114; and a transmission rod 117 rotatably mounted to the mounting plate 113 via a rotating shaft 116 provided on the mounting plate 113, the transmission rod 117 having a transmission groove 118, wherein the transmission block 119 is limited and slidably mounted inside the transmission groove 118.

[0038] Example 4

[0039] As another embodiment of the present invention, the height limiting roller shaft includes a shaft body 120 disposed at the opposite ends of the transmission rod 117 where the two sets of deflection buffer frame structures are located, and a plurality of roller bodies 121 are rotatably mounted on the shaft body 120.

[0040] Examples 3 and 4 combined Figure 1 , 2 As shown in Figure 5, the mounting plate 113, which is fixed to the slider 1122, is provided with a J-shaped groove 114 and a transmission rod 117. The transmission block 119 provided in the J-shaped groove 114 extends into the transmission groove 118 opened on the transmission rod 117. At the same time, one end of the transmission rod 117 is rotatably mounted to the mounting plate 113 through a rotating shaft 116, and the other end is assembled with the shaft body 120 where the height limiting roller shaft is located. Therefore, when the height limiting roller shaft is hit by a vehicle, specifically as shown in Figure 5... Figure 2 As shown, when the side of the height-limiting roller shaft away from the height-limiting crossbar assembly is hit by a vehicle, the transmission rod 117 can rotate counterclockwise around the shaft 116, and at the same time the roller body 121 rotates on the vehicle surface to achieve a warning to the vehicle and a non-forced height-limiting process.

[0041] Furthermore, each roller body 121 has an identification sticker on its side wall, which can be a reflective strip, a height limit warning sticker, etc.

[0042] Example 5

[0043] As another embodiment of this utility model, the height limit crossbar assembly includes brackets 123 respectively fixed to the front sides of two mounting plates 113, with an assembly frame 124 fixed to the front section of each bracket 123; and a motor 125 disposed on one side of the assembly frame 124, with the output end of the motor 125 passing through a through hole opened on the assembly frame 124 and fixed with a stop bar 126; it also includes two sets of trigger switches, which are used to drive the two stop bars 126 to move closer to and further away from each other when the vehicle hits the height limit roller axle; furthermore, each set of trigger switches includes an electric telescopic rod 128 disposed at the top of the J-shaped groove 114, with a pressure-sensitive switch 115 installed at the telescopic end of the electric telescopic rod 128.

[0044] As can be seen above, when the height-limiting roller shaft is hit by a vehicle, the transmission rod 117 can deflect around the shaft 116 as the axis. This process can cause the transmission block 119 inside the transmission rod 117 to move inside the J-shaped groove 114.

[0045] When the height-limiting roller reaches the height-limiting position upon impact with the vehicle, combined with... Figure 5 , 6 As shown, at this time, the transmission block 119 can contact the pressure-sensitive switch 115 at the extension end of the electric telescopic rod 128. The two pressure-sensitive switches 115 drive the two motors 125 to run simultaneously, so as to deflect the two levers 126 to the middle and achieve the interception effect. Conversely, when the vehicle moves backward, the pressure-sensitive switch 115 loses pressure, and the two levers 126 reset synchronously.

[0046] It is worth noting that if the pressure-sensitive switch 115 is installed at the telescopic end of the electric telescopic rod 128, the deflection range of the height limiting roller shaft can be adjusted in a small range to achieve the adjustment of the trigger point of the trigger switch.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixation" and other terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part. There are various ways to install detachably, such as by using a plug-in and snap-fit ​​method, or by using a bolt connection, etc.

[0048] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A bridge height limiting device, characterized in that... ,include: Left and right pillars; The cylinder lifting assembly is respectively installed on the top of the left and right columns, and the cylinder lifting assembly is provided with a deflection buffer frame structure at the actuator end; And a height-limiting roller shaft is laterally disposed on the deflection buffer frame structure. When a vehicle collision occurs, the height-limiting roller shaft deflects along the running direction of the deflection buffer frame structure to absorb some of the impact energy and reduce damage to the vehicle and equipment. It also includes a line height crossbar assembly installed on the front side of the deflection buffer frame structure. When the height limiting roller shaft deflects and buffers, the line height crossbar assembly can be triggered to forcefully intercept the vehicle in the front direction of travel.

2. The bridge height limiting device according to claim 1, characterized in that: The left and right columns each include a column body (111) and an assembly plate (127) fixed to the bottom of each column body (111).

3. A bridge height limiting device according to claim 2, characterized in that: Each cylinder lifting assembly includes an assembly column (112) fixed to the top of the column (111), the assembly column (112) having a sliding groove (1121) on its inner side, and a slider (1122) inside the sliding groove (1121). And a cylinder body (122) is provided on the top of the assembly column (112), and the output shaft of the cylinder body (122) extends into the slide groove (1121) and is fixed to the slider (1122), serving as a driving source for the movement of the slider (1122).

4. A bridge height limiting device according to claim 3, characterized in that: Each set of the deflection buffer frame structure includes a mounting plate (113) fixed to the side wall of the slider (1122), and the mounting plate (113) is provided with a J-shaped groove (114); A transmission block (119) is slidably installed inside the J-shaped groove (114); And a transmission rod (117) is rotatably mounted on the mounting plate (113) via a rotating shaft (116) provided on the mounting plate (113). The transmission rod (117) has a transmission groove (118), wherein the transmission block (119) is slidably mounted inside the transmission groove (118).

5. A bridge height limiting device according to claim 4, characterized in that: The height-limiting roller shaft includes a shaft body (120) located at the opposite ends of the transmission rod (117) where the two sets of deflection buffer frame structures are located, and a plurality of roller bodies (121) are rotatably mounted on the shaft body (120).

6. A bridge height limiting device according to claim 5, characterized in that: Each of the roller bodies (121) has an identification sticker on its side wall.

7. A bridge height limiting device according to claim 4, characterized in that: The line height crossbar assembly includes brackets (123) respectively fixed to the front side of two mounting plates (113), and each bracket (123) has an assembly frame (124) fixed to its front end; And a motor (125) is provided on one side of the assembly frame (124), and the output end of the motor (125) passes through the through hole opened on the assembly frame (124) and is fixed with a stop bar (126); It also includes two sets of trigger switches, which are used to drive two levers (126) toward each other and away from each other when the vehicle hits the height-limiting roller axle.

8. A bridge height limiting device according to claim 7, characterized in that: Each set of trigger switches includes an electric telescopic rod (128) disposed at the top of the J-shaped groove (114), and a pressure-sensitive switch (115) is installed at the telescopic end of the electric telescopic rod (128).

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