Bridge prefabricated crash barrier mounting method

Abstract

The invention relates to a bridge prefabricated crash barrier mounting method. The method comprises the following steps that a prefabricated crash barrier is conveyed to a bridge floor storage area; mounting the mounting device on a forklift gear shaper and lifting the mounting device; the forklift is driven into a storage area, and an anti-collision fence is installed on the device; driving into an installation area, and positioning the crash barrier to a position above a pre-installation position; a moving mechanism of the mounting device is controlled through a remote controller, a left-right moving platform, a front-back moving platform and a lifting hydraulic cylinder are used for adjusting the crash barrier in multiple directions, and after precise positioning, the crash barrier is put down to complete mounting. And the steps are repeated to complete installation of all crash barriers. The installation device comprises a frame body, a moving mechanism and a controller, and a lifting hydraulic cylinder and a suspension part are arranged at the front end of the moving mechanism and used for stably hoisting and adjusting the crash barrier. Through forklift auxiliary installation and remote control adjustment, the construction efficiency and the installation precision are remarkably improved, the construction cost is reduced, and the device is suitable for various bridge floor environments and has important practical significance.

Description

Technical Field

[0001] The present invention relates to the technical field related to methods for installing a crash barrier, and in particular to a method for installing a prefabricated crash barrier on a bridge. Background Art

[0002] During the construction of viaducts, the installation of crash barriers on both sides of the bridge deck is an important part of ensuring driving safety. However, the existing crash barrier installation technology has many shortcomings. Traditional construction vehicles are usually unable to accurately adjust the crash barriers front and back, left and right, resulting in a time-consuming and labor-intensive installation process and low construction efficiency. At the same time, due to the lack of an effective positioning device, the installation accuracy of the crash barriers is difficult to guarantee, and position deviations are prone to occur, affecting the overall construction quality. Therefore, it is of great practical significance to develop an efficient and accurate method for installing prefabricated crash barriers on bridges. Summary of the invention

[0003] The object of the present invention is to provide a method for installing a prefabricated bridge crash barrier to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a method for installing a prefabricated bridge crash barrier, the installation method comprising the following steps:

[0005] Step 1: transport the prefabricated crash barriers from the production site to the storage area of ​​the bridge deck where the crash barriers are to be installed;

[0006] Step 2: Install the mounting device on the tine of the forklift on the bridge deck and lift the tine to a certain height;

[0007] Step 3: Drive the forklift into the storage area and install a crash barrier on the mounting device;

[0008] Step 4: Drive the forklift into the installation area of ​​the crash barrier and position the crash barrier above the pre-installation position of the crash barrier;

[0009] Step 5: Use the remote control to control the moving mechanism of the installation device, and adjust the crash barrier in the left and right, front and back, and up and down directions respectively through the left and right moving platform, the front and back moving platform, and the lifting hydraulic cylinder. When the crash barrier is located directly above the pre-installation position, lower the guardrail to complete the installation of the crash barrier;

[0010] Step 6: Repeat steps 3-5 to complete the installation of all the crash barriers.

[0011] Preferably, the installation method further comprises pre-opening two side-by-side suspension holes along the width direction of the prefabricated board during the prefabrication process of the prefabricated board at the production site.

[0012] Preferably, two lifting hydraulic cylinders are provided at the front end spacing of the moving mechanism. The installation device further includes two sets of suspension members. Each set of suspension members includes a suspension ear, a suspension rope, a suspension hook, and a suspension rod. The suspension ear is provided with a through hole for the suspension rope to pass through. Both ends of the suspension rope are provided with sling loops. The suspension hook includes a hook portion and a loop portion. The loop portion is sleeved on the suspension rod, and the hook portion is hooked to the sling loop. The telescopic end of the lifting hydraulic cylinder is connected to the suspension ear.

[0013] Preferably, step 2 further includes the step of installing the suspension member on the moving mechanism: fixing the suspension ear at the end of the lifting hydraulic cylinder, passing one end of the suspension rope through the suspension ear, connecting both ends of the suspension rope to the hook portion of the suspension hook, and inserting the suspension rod into the loop portions of the two suspension hooks.

[0014] Preferably, step 3 further includes the step of installing a crash barrier on the installation device: removing the suspension rod from the suspension hook, placing the suspension hooks at both ends of the suspension rope on both sides of the suspension hole of the crash barrier, and then inserting the suspension rod into the suspension hole and the loop portion of the suspension hook.

[0015] Preferably, the installation device includes a frame body, the moving mechanism, and a controller. The moving mechanism includes a left-right moving platform, two front-back moving platforms, and two lifting hydraulic cylinders. Two plug-in blocks are arranged at intervals at the bottom of the frame body. The plug-in blocks are provided with slots, and the slots are plugged with the insertion teeth of the forklift. The left-right moving platform is slidably arranged on the frame body. The two front-back moving platforms are symmetrically and vertically arranged at both ends of the left-right moving platform. Each front-back moving platform is provided with a front-back moving hydraulic cylinder, and the piston end of the front-back moving hydraulic cylinder is connected to the lifting hydraulic cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By combining the forklift with the installation device and using a remote control to control the moving mechanism of the installation device, this method adjusts the crash barrier in the left-right, front-back, and up-down directions respectively through the left-right moving platform, the front-back moving platform, and the lifting hydraulic cylinder, realizing the fine-tuning function of the position of the crash barrier, so that the crash barrier can be quickly and accurately positioned and installed in place, thus shortening the construction period and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flowchart of a method for installing a precast bridge crash barrier provided by the present invention;

[0019] Figure 2 It is a structural schematic diagram of the installation device provided by the present invention;

[0020] Figure 3A schematic diagram of the structure of the left-right movable platform of the installation device provided by the present invention;

[0021] Figure 4 A schematic diagram of the installation state of a prefabricated bridge crash barrier provided by the present invention;

[0022] In the figure: frame 11, first bottom plate 111, plug-in block 112, slot 1121, left and right moving block 121, left and right moving slide 1211, connecting transverse plate 131, left and right moving roller 1311, connecting longitudinal plate 132, reinforcement support frame 1321, second bottom plate 133, front and rear moving block 134, lower opening 1341, front and rear moving slide 1342, upper opening 1343, lifting hydraulic cylinder 16, front and rear moving roller 161, suspension connecting ring 162, connecting shaft 163, lifting ear 164, lifting rope 165, lifting rope ring 1651, suspension rod 17, suspension hook 18, hook part 181, lifting ring part 182, controller 19, forklift 2, gear 21, anti-collision barrier 3, suspension hole 31, bridge deck 4. DETAILED DESCRIPTION

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

[0024] In the description of the present invention, it should be noted that the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation. In addition, the control parts in the present invention are all prior art.

[0025] See also Figure 1-4The present invention provides a technical solution: a method for installing a prefabricated bridge crash barrier is based on a device for installing a prefabricated bridge crash barrier, the installation device includes a frame 11, a moving mechanism, a suspension, a controller 19, the moving mechanism includes a left and right moving platform, two front and rear moving platforms and two lifting hydraulic cylinders 16, two plug-in blocks 112 are arranged at a spacing at the bottom of the frame 11, the plug-in block 112 has a slot 1121, the slot 1121 is plugged with the tooth 21 of the forklift 2, the left and right moving platforms are slidably arranged on the frame 11, the two front and rear moving platforms are symmetrically and vertically arranged at both ends of the left and right moving platforms, each front and rear moving platform is provided with a front and rear moving hydraulic cylinder, and the piston end of the front and rear moving hydraulic cylinder is connected to the lifting hydraulic cylinder 16. The device is connected with the spline 21 of the forklift 2 through the slot 1121 of the plug-in block 112, so that the prefabricated guardrail 3 installation device can be installed on the forklift 2, and can move with the forklift 2 and rise and fall with the spline 21, so as to facilitate the transportation and positioning of the guardrail 3. In addition, the device can achieve fine adjustment of the position of the guardrail 3 by setting a left and right moving platform, a front and rear moving platform, and a lifting hydraulic cylinder 16, so as to facilitate the rapid positioning of the guardrail 3, thereby achieving rapid and accurate installation of the guardrail 3.

[0026] In addition, the front-to-back moving platform is fixedly arranged on the left-to-right moving platform, so that the front-to-back moving platform can move left-to-right synchronously with the left-to-right moving platform.

[0027] The frame 11 includes two first bottom plates 111 spaced apart from each other, a plug-in block 112 being disposed on the lower surface of each first bottom plate 111, and a left-right movable block 121 being vertically disposed in the front-to-back direction on the upper surfaces of the two first bottom plates 111, each left-right movable block 121 being provided with a left-right movable groove, and the left-right movable grooves of the two left-right movable blocks 121 correspond to each other.

[0028] The left-right moving platform includes two connecting transverse plates 131, left-right moving rollers 1311, and a connecting longitudinal plate 132. Left-right moving rollers 1311 are provided on the outer sides of both ends of each connecting transverse plate 131. Connecting longitudinal plates 132 are provided on the left and right ends between the two connecting transverse plates 131. The left-right moving rollers 1311 are rotatably arranged in the left-right moving grooves of the left-right moving blocks 121.

[0029] The left-right movable platform is also provided with a left-right movable hydraulic cylinder, the mounting end of which is arranged on a first bottom plate 111, the piston end of the left-right movable hydraulic cylinder is connected to the inner side of the connecting longitudinal plate 132 of the left-right movable platform on the opposite side, and the end of the left-right movable block 121 is arranged in the reinforcement support frame 1321.

[0030] The forward and backward moving platform includes a second bottom plate and a forward and backward moving block 134. The second bottom plate is located above the connecting longitudinal plate 132 of the left and right moving platforms and is mounted on two connecting transverse plates 131. The forward and backward moving block 134 is a frame, and a lower opening 1341 is provided in the middle of its bottom along the length direction to form a forward and backward moving channel. Forward and backward moving grooves 1342 are formed on both sides of the bottom of the forward and backward moving block 134. An upper opening 1343 is provided on the top of the forward and backward moving block 134 along the length direction. A forward and backward moving hydraulic cylinder is arranged in the forward and backward moving block 134. Forward and backward moving rollers 161 are provided on both sides of the mounting end of the lifting hydraulic cylinder 16. The mounting end of the lifting hydraulic cylinder 16 is connected to the piston end of the forward and backward moving hydraulic cylinder. The forward and backward moving rollers 161 are provided with forward and backward moving grooves 1342 for rolling.

[0031] To facilitate the suspension of the crash barrier 3, there are two suspension parts, each of which includes a connecting shaft 163, a suspension ear 164, a suspension rope 165, a suspension hook 18, and a suspension rod 17. The suspension ear 164 is U-shaped and has an axial hole on the upper part. Both ends of the suspension rope 165 are provided with rope rings 1651. The suspension hook 18 includes a hook part 181 and a ring part 182. The ring part 182 is sleeved with the suspension rod 17, and the hook part 181 is sleeved with the rope ring 1651. The telescopic end of the lifting hydraulic cylinder 16 is provided with a suspension connecting ring 162, and the telescopic end of the lifting hydraulic cylinder 16 is connected to the suspension ear 164 through the connecting shaft 163.

[0032] The present invention provides a method for installing a prefabricated bridge crash barrier 3. Based on the above-mentioned installation device, the installation method comprises the following steps:

[0033] A method for installing a prefabricated bridge crash barrier, the installation method comprising the following steps:

[0034] Step 1: transport the prefabricated crash barrier 3 from the production site to the storage area of ​​the bridge deck 4 where the crash barrier 3 needs to be installed;

[0035] Step 2: Install the installation device on the inserting gear 21 of the forklift 2 located on the bridge deck 4, and lift the inserting gear 21 to a certain height;

[0036] Step 3: Drive the forklift 2 into the storage area and install a crash barrier 3 on the installation device;

[0037] Step 4: driving the forklift 2 into the installation area of ​​the crash barrier 3 and positioning the crash barrier 3 above the pre-installation position of the crash barrier 3;

[0038] Step 5: Control the moving mechanism of the installation device through the remote control, and adjust the crash barrier 3 in the left and right, front and back, and up and down directions respectively through the left and right moving platform, the front and back moving platform, and the lifting hydraulic cylinder 16. When the crash barrier 3 is located directly above the pre-installation position and the crash barrier is at a suitable distance from the pre-installation position (the suitable position can ensure that the crash barrier 3 can be accurately installed at the pre-installation position), lower the guardrail to complete the installation of the crash barrier 3. After the installation is completed, remove the suspension rod 17 from the crash barrier 3 and reassemble the suspension parts;

[0039] Step 6: Repeat steps 3-5 to complete the installation of all the crash barriers 3.

[0040] The method combines a forklift with an installation device and uses a remote controller to control the moving mechanism of the installation device. The left-right moving platform, the front-back moving platform, and the lifting hydraulic cylinder respectively adjust the crash barrier in the left-right, front-back, and up-down directions, thereby realizing the fine-tuning function of the position of the crash barrier, so that the crash barrier can be quickly and accurately positioned and installed in place, thereby shortening the construction period and saving costs.

[0041] In this embodiment, preferably, the installation method further comprises pre-opening two side-by-side suspension holes 31 along the width direction of the prefabricated board during the prefabrication of the prefabricated board at the production site, so as to facilitate the installation of the suspension parts.

[0042] In this embodiment, as a preference, step 2 also includes: the step of installing the suspension component on the mobile mechanism: fixing the suspension ear 164 to the end of the lifting hydraulic cylinder 16, passing one end of the suspension rope 165 through the suspension ear, connecting the two ends of the suspension rope 165 to the hook portion 181 of the suspension hook 18, and inserting the suspension rod 17 into the ring portion 182 of the two suspension hooks 18. The installation steps of the suspension component ensure that the construction personnel can quickly and accurately complete the assembly of the installation device, thereby improving the construction efficiency. Suspension hook 18, hook portion 181, ring portion 182,

[0043] In this embodiment, as a preference, step 3 further includes: installing a crash barrier 3 on the installation device: removing the suspension rod 17 from the suspension hook 18, placing the suspension hooks 18 at both ends of the suspension rope 165 on both sides of the suspension hole 31 of the crash barrier 3, and then passing the suspension rod 17 through the suspension hole 31 and the ring portion 182 of the suspension hook. By optimizing the connection method between the crash barrier 3 and the installation device, the crash barrier 3 is quickly installed, and the installation efficiency is further improved.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for installing a prefabricated bridge crash barrier, characterized in that: The installation method comprises the following steps: Step 1: transport the prefabricated crash barriers from the production site to the storage area of ​​the bridge deck where the crash barriers are to be installed; Step 2: Install the mounting device on the tine of the forklift on the bridge deck and lift the tine to a certain height; Step 3: Drive the forklift into the storage area and install a crash barrier on the mounting device; Step 4: Drive the forklift into the installation area of ​​the crash barrier and position the crash barrier above the pre-installation position of the crash barrier; Step 5: Use the remote control to control the moving mechanism of the installation device, and use the left and right moving platform, front and back moving platform and lifting hydraulic cylinder of the moving mechanism to adjust the crash barrier in the left and right, front and back, and up and down directions respectively. When the crash barrier is located directly above the pre-installation position, lower the guardrail to complete the installation of the crash barrier; Step 6: Repeat steps 3-5 to complete the installation of all the crash barriers.

2. A method for installing a prefabricated bridge crash barrier according to claim 1, characterized in that: The method also includes the step of pre-opening two side-by-side suspension holes along the width direction of the prefabricated board during the prefabrication process of the prefabricated board at the production site.

3. A method for installing a prefabricated bridge crash barrier according to claim 2, characterized in that: Two lifting hydraulic cylinders are arranged at a distance from the front end of the moving mechanism, and the installation device also includes two pairs of suspension parts, each pair of suspension parts includes a suspension ear, a suspension rope, a suspension hook, and a suspension rod. The suspension ear is provided with a through hole for the suspension rope to pass through, and rope rings are provided at both ends of the suspension rope. The suspension hook includes a hook part and a ring part, the ring part is sleeved with the suspension rod, and the hook part is hooked with the rope ring. The telescopic end of the lifting hydraulic cylinder is connected to the suspension ear.

4. A method for installing a prefabricated bridge crash barrier according to claim 3, characterized in that: The step 2 also includes: installing the suspension part on the mobile mechanism: fixing the suspension ear on the end of the lifting hydraulic cylinder, passing one end of the suspension rope through the suspension ear, connecting the two ends of the suspension rope to the hook part of the suspension hook, and inserting the suspension rod into the corresponding ring parts of the two suspension hooks.

5. The method for installing a prefabricated bridge crash barrier according to claim 4, characterized in that: The step 3 also includes: installing a crash barrier on the installation device: removing the suspension rod from the suspension hook, placing the suspension hooks at both ends of the suspension rope on both sides of the corresponding suspension holes of the crash barrier, and then passing the suspension rod through the suspension hole and the hanging ring part of the suspension hook.

6. The method for installing a prefabricated bridge crash barrier according to claim 1, characterized in that: The installation device includes a frame, a moving mechanism and a controller. The moving mechanism includes a left and right moving platform, two front and rear moving platforms and two lifting hydraulic cylinders. Two plug-in blocks are arranged at intervals at the bottom of the frame. The plug-in blocks have slots, which are plugged into the teeth of the forklift. The left and right moving platforms are slidably arranged on the frame. The two front and rear moving platforms are symmetrically and vertically arranged at both ends of the left and right moving platforms. Each of the front and rear moving platforms is provided with a front and rear moving hydraulic cylinder, and the piston end of the front and rear moving hydraulic cylinder is connected to the lifting hydraulic cylinder.

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