Urban bridge construction protective guardrail

Abstract

The utility model discloses a protective guardrail for urban bridge construction, which belongs to the technical field of bridge construction and comprises a fixed bottom plate, an adjusting top plate and a rotary roller, two symmetrically arranged fixed frame shells are fixedly connected to two ends of the upper side of the fixed bottom plate, adjusting mechanisms are arranged in the two fixed frame shells, and the rotary roller is arranged in the adjusting mechanisms. And the upper end of the adjusting mechanism penetrates through the fixing frame shell and is fixedly connected with the adjusting top plate, the side walls of the two opposite sides of the fixing bottom plate and the adjusting top plate are fixedly connected with buffering mechanisms, and the ends, close to each other, of the two buffering mechanisms are rotationally connected with mounting bases. According to the utility model, the adjusting mechanism is arranged, so that the rotating rollers are convenient to mount and dismount, subsequent maintenance and replacement of the rotating rollers are facilitated, and the buffering mechanisms are arranged at the two ends of each rotating roller, so that each rotating roller is stressed respectively, and each rotating roller can play a maximum buffering role on an automobile, so that the service life of the rotating rollers is prolonged, and the service life of the rotating rollers is prolonged. Therefore, the protection effect on the automobile on the bridge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a protective guardrail for urban bridge construction. Background Art

[0002] A bridge generally refers to a structure built across rivers, lakes, and seas to enable vehicles and pedestrians to pass smoothly. To adapt to the modern high-speed development of the transportation industry, bridges are also extended to refer to buildings that cross mountain streams, poor geology, or meet other traffic needs to make passage more convenient. Guardrails for bridge construction refer to guardrails installed on bridges. Their purpose is to prevent out-of-control vehicles from going over the bridge. They have the function of preventing vehicles from breaking through, passing under, or climbing over the bridge, as well as beautifying the bridge structure. Bridge guardrails are a guarantee of safety for vehicles traveling on bridges.

[0003] In a Chinese patent for a guardrail for bridge construction (patent number: CN219240281U), the device includes a base, a support plate is arranged at the top of the base, a connecting plate is arranged at one side of the support plate, a baffle is arranged at one side of the connecting plate, a roller is arranged at one side of the baffle, both ends of the roller are rotatably connected to the baffle, a sleeve is arranged between the support plate and the connecting plate, a buffer rod is arranged on the sleeve, and one end of the buffer rod is connected to the connecting plate. In this patent, when a vehicle hits the baffle, the vehicle turns by rotating the roller, thereby effectively avoiding The vehicle directly rushed out of the bridge, and the buffer assembly on one side of the baffle and the arrangement between the sleeve, the second spring and the buffer rod on one side of the connecting plate make the guardrail have a certain buffering effect, thereby reducing the impact force of the collision, protecting the driver, and reducing the injury of the occupants in the car to a certain extent. However, several rollers in the device are all installed on one baffle. If the car hits a local roller, the entire baffle will be subjected to force, thereby reducing the impact buffering effect, thereby affecting the protective function, and the installation and disassembly of the rollers is relatively troublesome, affecting the efficiency of subsequent inspection and replacement of the rollers. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a protective guardrail for urban bridge construction. By setting an adjustment mechanism, the installation and disassembly of the rotating rollers can be achieved by simply turning the handwheel rod. The operation is simple and convenient for the subsequent inspection and replacement of the rotating rollers. It solves the problem that the installation and disassembly of the rollers in the prior art mentioned in the background technology is troublesome, which affects the efficiency of the subsequent inspection and replacement of the rotating rollers.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: the utility model provides a protective guardrail for urban bridge construction, including: a fixed bottom plate, an adjustable top plate and a rotating roller, the upper ends of the fixed bottom plate are fixedly connected to two symmetrically arranged fixed frame shells, the two fixed frame shells are provided with an adjustment mechanism, the upper end of the adjustment mechanism passes through the fixed frame shell and is fixedly connected to the adjustable top plate, the opposite side walls of the fixed bottom plate and the adjustable top plate are fixedly connected with a buffer mechanism, the adjacent ends of the two buffer mechanisms are rotatably connected with a mounting seat, the side wall of the mounting seat is provided with a slot, the two ends of the rotating roller are fixedly connected with an insertion rod, and the two insertion rods are respectively inserted in the two slots.

[0006] Preferably, the adjusting mechanism includes a handwheel rod inserted in the lower part of the front side wall of the fixed frame shell and rotatably connected thereto, one end of the handwheel rod is fixedly connected to the first bevel gear, the inner walls at both ends of the fixed frame shell are rotatably connected to the screw rod through the bearing seat, the screw rod is fixedly connected to the second bevel gear meshing with the first bevel gear, the screw rod is threadedly connected to the nut block, and the upper side wall of the nut block is fixedly connected to two symmetrically arranged moving rods, and the upper ends of the two moving rods both penetrate the fixed frame shell and are fixedly connected to the adjusting top plate.

[0007] Preferably, the upper side wall of the fixed frame shell is provided with two sliding holes, and the two moving rods are respectively arranged through the two sliding holes.

[0008] Preferably, the buffer mechanism includes a fixed frame fixed on a fixed base plate, a support rod fixedly connected to the fixed frame, a sliding sleeve sleeved and slidably connected to the support rod, a buffer spring fixedly connected between the rear end inner wall of the fixed frame and the sliding sleeve, the buffer spring sleeved on the support rod, a connecting block fixedly connected to the upper surface of the sliding sleeve, and the upper end of the connecting block is rotatably connected to the mounting seat via a rotating member.

[0009] Preferably, the inner walls on both sides of the fixing frame are slidably connected to the side walls on both sides of the sliding sleeve.

[0010] Preferably, the rear side walls of the two fixed frame shells are fixedly connected with reinforcement fences, and a gap is left between the reinforcement fences and the rotating roller.

[0011] Preferably, the outer side wall of the rotating roller is fixedly connected with rubber rings arranged at equal intervals in sequence from top to bottom.

[0012] Preferably, a planting trough shell for planting green plants is fixedly connected to the upper surface of the adjustable top plate.

[0013] The beneficial effects of the utility model are:

[0014] 1. In the utility model, an adjustment mechanism is provided to rotate the handwheel rod to drive the first bevel gear to rotate. Since the first bevel gear is meshed with the second bevel gear, the screw rod is driven to rotate. At this time, the nut block is forced to move downward, thereby driving the adjustment top plate fixed to the moving rod to move upward. At this time, the mounting seat is separated from the insertion rod, and the counter-rotating roller can be disassembled. After replacing a new counter-rotating roller, the handwheel rod is reversed. At the same time, the adjustment top plate can be driven to move downward, and the mounting seat can be pressed on the insertion rod to realize the installation of the counter-rotating roller. The installation and disassembly are convenient, which is convenient for the subsequent inspection and replacement of the counter-rotating roller.

[0015] 2. In the utility model, by setting a buffer mechanism, when the rotating roller is hit by a car, it will be displaced, pushing the mounting seat to move. At this time, the sliding sleeve fixed with the connecting block is driven to move on the support rod, which can squeeze and contract the buffer spring to generate elastic force. The elastic force of the buffer spring can be used to rebound, so that the collision force received by the rotating roller can be buffered and weakened. This design makes each rotating roller bear its own force, so that each rotating roller can play a maximum buffering role on the car, thereby improving the protective effect of the device on the car on the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the fixed frame shell in the utility model.

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the fixed frame shell in the utility model.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed frame in the utility model.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the transfer roller of the utility model.

[0022] Explanation of the reference numerals: 1-fixed bottom plate, 2-adjustable top plate, 3-rotating roller, 4-fixed frame shell, 5-mounting seat, 6-slot, 7-insertion rod, 8-handwheel rod, 9-first bevel gear, 10-screw rod, 11-second bevel gear, 12-nut block, 13-moving rod, 14-fixed frame, 15-support rod, 16-sleeve, 17-buffer spring, 18-connecting block, 19-rotating part, 20-reinforcement fence, 21-rubber ring, 22-planting trough shell. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figures 1 to 5 As shown, the present embodiment provides a kind of urban bridge construction protection guardrail, comprising: a fixed bottom plate 1, an adjustable top plate 2 and a rotating roller 3. When a vehicle hits the rotating roller 3, the vehicle turns by rotating the rotating roller 3, thereby effectively preventing the vehicle from directly rushing out of the bridge. Two symmetrically arranged fixed frame shells 4 are fixedly connected to both ends of the upper side of the fixed bottom plate 1. Adjustment mechanisms are provided in the two fixed frame shells 4. The upper ends of the adjustment mechanisms penetrate the fixed frame shells 4 and are fixedly connected to the adjustable top plate 2. The side walls on both sides opposite to the fixed bottom plate 1 and the adjustable top plate 2 are fixedly connected with buffer mechanisms. The ends close to the two buffer mechanisms are rotatably connected with mounting seats 5. The side walls of the mounting seat 5 are provided with slots 6. Both ends of the rotating roller 3 are fixedly connected with insertion rods 7. The two insertion rods 7 are respectively inserted into the two slots 6. The insertion method facilitates subsequent disassembly and makes the rotating roller 3 rotate better.

[0026] The adjusting mechanism includes a handwheel rod 8 inserted in the lower part of the front side wall of the fixed frame shell 4 and rotatably connected thereto, one end of the handwheel rod 8 is fixedly connected to a first bevel gear 9, and the inner walls at both ends of the fixed frame shell 4 are rotatably connected to a screw rod 10 through a bearing seat, and a second bevel gear 11 meshing with the first bevel gear 9 is fixedly connected to the screw rod 10, and a nut block 12 is threadedly connected to the screw rod 10, and the upper side wall of the nut block 12 is fixedly connected to two symmetrically arranged moving rods 13, and the upper ends of the two moving rods 13 both penetrate the fixed frame shell 4 and are fixedly connected to the adjusting top plate 2.

[0027] The upper side wall of the fixed frame housing 4 is provided with two sliding holes, and the two moving rods 13 are respectively arranged through the two sliding holes to facilitate the displacement of the moving rods 13 .

[0028] The rear side walls of the two fixed frame shells 4 are fixedly connected with a reinforcement fence 20 to enhance the protection effect. A gap is left between the reinforcement fence 20 and the rotating roller 3 so that the rotating roller 3 can be displaced when it is hit.

[0029] The outer side wall of the rotating roller 3 is fixedly connected with rubber rings 21 arranged at equal intervals in sequence from top to bottom to improve the anti-collision protection.

[0030] A planting trough shell 22 for planting green plants is fixedly connected to the upper surface of the adjustable top plate 2, so that green plants can be planted to improve the aesthetics.

[0031] Principle of this embodiment: when it is necessary to disassemble the rotating roller 3 for inspection and replacement, turn the handwheel rod 8 to drive the first bevel gear 9 to rotate. Since the first bevel gear 9 is meshed with the second bevel gear 11, it drives the screw rod 10 to rotate. Since the screw rod 10 is threadedly connected with the nut block 12, the nut block 12 is forced to move downward, thereby driving the adjustment top plate 2 fixed to the moving rod 13 to move upward. At this time, the mounting seat 5 is separated from the insertion rod 7, and the rotating roller 3 can be disassembled. After replacing the new rotating roller 3, reverse the handwheel rod 8. At the same time, it can drive the adjustment top plate 2 to move downward, and press the mounting seat 5 on the insertion rod 7, so that the rotating roller 3 can be installed. The installation and disassembly are convenient, which is convenient for the subsequent inspection and replacement of the rotating roller 3.

[0032] Embodiment 2:

[0033] like Figure 1 and Figure 4 As shown, on the basis of retaining all the technical features in the specific embodiment 1, in this embodiment: the buffer mechanism includes a fixed frame 14 fixed on the fixed base plate 1, a support rod 15 is fixedly connected in the fixed frame 14, a sliding sleeve 16 is sleeved and slidably connected on the support rod 15, a buffer spring 17 is fixedly connected between the rear end inner wall of the fixed frame 14 and the sliding sleeve 16, the buffer spring 17 is sleeved on the support rod 15, a connecting block 18 is fixedly connected to the upper surface of the sliding sleeve 16, and the upper end of the connecting block 18 is rotatably connected to the mounting seat 5 through a rotating member 19.

[0034] The inner walls on both sides of the fixed frame 14 are slidably connected to the side walls on both sides of the sliding sleeve 16 , so that the displacement of the sliding sleeve 16 is more stable.

[0035] The principle of this embodiment is as follows: when the rotating roller 3 is hit by a car, it is displaced, pushing the mounting seat 5 to be displaced. At this time, the sliding sleeve 16 fixed to the connecting block 18 is driven to be displaced on the support rod 15, which can squeeze and contract the buffer spring 17 to generate elastic force. The elastic force of the buffer spring 17 is used to rebound, so that the collision force on the rotating roller 3 can be buffered and weakened. This design allows each rotating roller 3 to be subjected to its own force, so that each rotating roller 3 can play a maximum buffering role on the car, thereby improving the protective effect of the device on the car on the bridge.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A protective guardrail for urban bridge construction, characterized in that: include: A fixed bottom plate (1), an adjustable top plate (2) and a rotating roller (3); the upper ends of the fixed bottom plate (1) are fixedly connected to two symmetrically arranged fixed frame shells (4); the two fixed frame shells (4) are provided with adjustment mechanisms; the upper ends of the adjustment mechanisms penetrate the fixed frame shells (4) and are fixedly connected to the adjustable top plate (2); the opposite side walls of the fixed bottom plate (1) and the adjustable top plate (2) are fixedly connected to buffer mechanisms; the adjacent ends of the two buffer mechanisms are rotatably connected to a mounting seat (5); a slot (6) is provided on the side wall of the mounting seat (5); the two ends of the rotating roller (3) are fixedly connected to insertion rods (7); the two insertion rods (7) are respectively inserted into the two slots (6).

2. The urban bridge construction protection guardrail according to claim 1, characterized in that: The adjustment mechanism comprises a hand wheel rod (8) inserted in the lower part of the front side wall of the fixed frame shell (4) and rotatably connected thereto, one end of the hand wheel rod (8) is fixedly connected to a first bevel gear (9), the inner walls at both ends of the fixed frame shell (4) are rotatably connected to a screw rod (10) through a bearing seat, the screw rod (10) is fixedly connected to a second bevel gear (11) meshingly connected to the first bevel gear (9), the screw rod (10) is threadedly connected to a nut block (12), the upper side wall of the nut block (12) is fixedly connected to two symmetrically arranged moving rods (13), the upper ends of the two moving rods (13) both penetrate the fixed frame shell (4) and are fixedly connected to the adjustment top plate (2).

3. A protective guardrail for urban bridge construction as claimed in claim 2, characterized in that: Two sliding holes are provided on the upper side walls of the two fixed frame shells (4), and the two moving rods (13) are respectively arranged through the two sliding holes.

4. The urban bridge construction protection guardrail according to claim 1, characterized in that: The buffer mechanism comprises a fixed frame (14) fixed on a fixed base plate (1), a support rod (15) fixedly connected in the fixed frame (14), a sliding sleeve (16) sleeved and slidably connected on the support rod (15), a buffer spring (17) fixedly connected between the rear end inner wall of the fixed frame (14) and the sliding sleeve (16), the buffer spring (17) sleeved on the support rod (15), a connecting block (18) fixedly connected on the upper surface of the sliding sleeve (16), and the upper end of the connecting block (18) is rotatably connected to the mounting seat (5) through a rotating member (19).

5. A protective guardrail for urban bridge construction as claimed in claim 4, characterized in that: The inner walls on both sides of the fixed frame (14) are slidably connected to the side walls on both sides of the sliding sleeve (16).

6. The urban bridge construction protection guardrail according to claim 1, characterized in that: A reinforcing fence (20) is fixedly connected to the rear side wall of the fixed frame shell (4), and a gap is left between the reinforcing fence (20) and the rotating roller (3).

7. The urban bridge construction protection guardrail according to claim 1, characterized in that: The outer side wall of the rotating roller (3) is fixedly connected with rubber rings (21) arranged at equal intervals in sequence from top to bottom.

8. The urban bridge construction protection guardrail according to claim 1, characterized in that: A planting trough shell (22) for planting green plants is fixedly connected to the upper surface of the adjustable top plate (2).

Images