A safety net installation vehicle

CN224813612UActive Publication Date: 2026-09-29山东德远建设集团有限公司
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Patent Information

Application Number
CN202521989816.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-16
Publication Date
2026-09-29
Estimated Expiration
2035-09-16

AI Technical Summary

Technical Problem

[0003]防抛网通常采用“吊车-挂篮”的方案,利用吊车吊装防抛网网片至指定位置,利用挂篮结合人工进行安装,但是,对于上跨繁忙铁路干线,现有吊车-挂篮施工工序繁琐(含吊车就位、挂篮悬挂、网片吊装、人工对位、固定等5-6道核心工序)、操作不便,对于跨既有铁路施工,吊车邻近既有线,需考虑吊车站位,严重影响吊车作业面积;而且铁路沿线设置通信等天线,致使吊车作业半径受到限制,极易造成安全隐患

Benefits of technology

一体化结构设计无需吊车辅助,作业区域集中,规避了与铁路沿线设施的碰撞风险,适配狭窄施工场地。

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Abstract

The utility model relates to the technical field of anti-throw net construction, concretely is a kind of anti-throw net installation car.The device includes external hanging basket, the external hanging basket is connected on vertical support frame by supporting assembly, the vertical support frame is fixedly connected on moving plate, the rear end of the moving plate is fixedly connected counterweight plate, the counterweight plate is provided with the limiting assembly for placing anti-throw net.The device integrated structure design does not need crane auxiliary, operation area is concentrated, avoids the collision risk with railway facilities along the line, adapts narrow construction site;The supporting assembly of rigid connection avoids the shaking of external hanging basket, the triangular support structure disperses the bearing, counterweight plate adjusts balance, cooperates stable pedal, and operation risk is greatly reduced;Simplify procedure, can store mesh in advance, reduce carrying and alignment time, more installation amount can be completed in railway skylight point;Various specifications of anti-throw net can be adjusted and adapted, component can be disassembled and replaced, maintenance cost is low, more economical in long-term use.
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Description

Technical Field

[0001] This utility model relates to the field of anti-throw net construction technology, specifically an anti-throw net installation vehicle. Background Technology

[0002] Anti-throw netting is a mesh fence product made of metal sheets such as low-carbon steel plate, stainless steel plate, and galvanized plate through mechanical stamping. It is mainly used for the protection of traffic lights at night on highways, which can effectively isolate the upstream and downstream lanes and maintain lateral visibility. It is also widely used in bridge anti-throw facilities, construction site fences, municipal road protection and industrial equipment protection.

[0003] Anti-throw nets typically employ a "crane-hanging basket" solution. A crane lifts the netting to the designated location, and a hanging basket, combined with manual labor, is used for installation. However, for construction projects crossing busy railway lines, the existing crane-hanging basket construction process is cumbersome (including 5-6 core procedures such as crane positioning, hanging basket suspension, netting installation, manual alignment, and fixing), and inconvenient to operate. For construction projects crossing existing railways, the crane's proximity to the existing line necessitates consideration of crane location, severely impacting the crane's operating area. Furthermore, the presence of communication antennas along the railway line restricts the crane's operating radius, easily creating safety hazards. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides an anti-throw net installation vehicle, which changes the traditional construction method by eliminating the need for a crane to suspend the hanging basket and fundamentally avoiding the risk of equipment colliding with critical railway facilities.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-throw net installation vehicle, including an external hanging basket, the external hanging basket being connected to a vertical support frame via a support assembly, the vertical support frame being fixedly connected to a movable plate, a counterweight plate being fixedly connected to the rear end of the movable plate, and a limiting assembly for placing the anti-throw net being provided on the counterweight plate.

[0006] By adopting the above structural design, the connection structure of "external hanging basket - support components - vertical support frame - movable plate" integrates the work load (external hanging basket), support stability (vertical support frame), and mobility function (movable plate) into one, breaking the limitations of the traditional separate "crane-hanging basket" operation. It can realize the installation of anti-throw net without relying on large cranes, adapting to narrow construction sites (such as railway beam surfaces) and improving the efficiency of equipment movement and positioning. The counterweight plate at the rear of the movable plate can adjust the overall balance of the equipment by adding weights, avoiding the equipment from tilting forward due to the load of the external hanging basket (personnel + net) during operation, thus improving the safety of operation. At the same time, the limiting components on the counterweight plate can fix the anti-throw net to be installed, preventing the net from slipping or colliding during equipment movement, reducing material loss and secondary handling time.

[0007] Preferably, the support assembly includes a first cantilever fixedly connected to the external hanging basket and a second cantilever fixedly connected to the vertical support frame. A first locking bolt passes through the first cantilever, and a mounting hole corresponding to the first locking bolt is formed on the second cantilever.

[0008] With the above structural design, the locking bolts and mounting holes can form a rigid connection, avoiding the swaying problem of traditional hanging baskets that are only suspended by steel ropes, reducing the risk of falling for personnel working inside the external hanging basket, and preventing alignment deviations caused by the swaying of the external hanging basket during mesh installation.

[0009] Preferably, a diagonal brace is provided between the vertical support frame and the movable plate, and a horizontally arranged pedal is fixedly connected to the vertical support frame, with the pedal being fixedly connected to the diagonal brace.

[0010] With the above structural design, the diagonal brace can form a triangular support structure between the vertical support frame and the moving plate, dispersing the vertical force (such as the weight of personnel, pedals, and netting) borne by the vertical support frame, preventing the vertical support frame from bending or deforming due to long-term load-bearing, and extending the service life of the equipment; the pedal can temporarily store the anti-throw netting, and at the same time, it can help workers raise their operating height, making it easier to install the anti-throw netting.

[0011] Preferably, the limiting component includes a support column detachably connected to the counterweight plate, a first baffle sleeved on the support column to prevent lateral displacement of the anti-throw net, a second baffle connected to the first baffle to prevent longitudinal displacement of the anti-throw net, multiple sets of support columns arranged symmetrically, and the first baffle and the second baffle connected by an extension rod.

[0012] With the above structural design, the diagonal brace can form a triangular support structure between the vertical support frame and the moving plate, which disperses the vertical force (such as the weight of personnel, pedals, and netting) borne by the vertical support frame, prevents the vertical support frame from bending and deforming due to long-term load, and extends the service life of the equipment. The detachable support column makes it easy to adjust the layout of the limiting components according to the number and size of the anti-throw netting.

[0013] Preferably, the first baffle is connected to a positioning pin by a thread, and the support column has a positioning hole that matches the positioning pin.

[0014] With the above structural design, the threaded locating pin can lock the position of the first baffle and prevent the first baffle from rotating.

[0015] Preferably, the counterweight plate has multiple threaded holes that match the support column, and the threaded holes are arranged in an array.

[0016] With the above structural design, within a certain range, the array of threaded holes allows the support columns to freely choose their installation positions according to the size and quantity of the anti-throw nets, without the need for additional drilling on the counterweight plate (to avoid damaging the counterweight plate structure). This adapts to the limiting requirements of different specifications of anti-throw nets and facilitates the adjustment of the support column spacing, optimizing the material storage space on the counterweight plate. The threaded connection method makes the support columns easy to assemble and disassemble, requiring no special tools and reducing equipment assembly and disassembly time. If a support column or threaded hole is damaged, only the corresponding part needs to be replaced, without replacing the entire counterweight plate, reducing equipment maintenance costs and cycles.

[0017] Compared with the prior art, the beneficial effects of this utility model are: The integrated structural design eliminates the need for crane assistance, concentrates the work area, avoids the risk of collision with railway facilities, and is suitable for narrow construction sites.

[0018] Rigidly connected support components prevent the external basket from swaying, the triangular support structure distributes the load, the counterweight plate adjusts the balance, and with the stable pedal, the operational risks are greatly reduced.

[0019] The process is simplified, the mesh can be stored in advance, reducing the time for handling and alignment, and allowing for more installations to be completed within the railway maintenance window.

[0020] It can be adjusted to fit various specifications of anti-throw nets, and the parts are detachable and replaceable, resulting in low maintenance costs and greater economic benefits in the long run. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the vertical support frame and limiting components of this utility model; Figure 3 This is a schematic diagram of the external hanging basket of this utility model; Figure 4 This is a schematic diagram of the structure of the present invention from the left side. Detailed Implementation

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: an anti-throw net installation vehicle, including an external hanging basket 1, the external hanging basket 1 being connected to a vertical support frame 2 via a support component, the vertical support frame 2 being fixedly connected to a movable plate 3, the rear end of the movable plate 3 being fixedly connected to a counterweight plate 4, and the counterweight plate 4 being provided with a limiting component for placing the anti-throw net.

[0023] Wheels are fixedly connected to both the counterweight plate 4 and the movable plate 3 to propel the device.

[0024] The support assembly includes a first cantilever 51 fixedly connected to the external hanging basket 1 and a second cantilever 52 fixedly connected to the vertical support frame 2. A first locking bolt 53 passes through the first cantilever 51, and a mounting hole 54 corresponding to the first locking bolt 53 is formed on the second cantilever 52. The first cantilever 51 is L-shaped and is mounted on the second cantilever 52 from top to bottom. The short side of the first cantilever 51 is attached to the vertical support frame 2. Both the vertical support frame 2 and the second cantilever 52 have mounting holes 54 corresponding to the first locking bolt 53.

[0025] The external hanging basket 1 includes a main frame 11, a base plate 12 fixedly connected to the bottom of the main frame 1, and a guardrail 13 fixedly connected to the base plate 12. The guardrail 13 is provided in three sets. The guardrail 13 and the main frame 11 enclose a closed working space for accommodating workers and tools for installing anti-throw nets. A first support rod 14 is provided between the main frame 11 and the guardrail 13, and a second support rod 15 is provided between the main frame 11 and the first cantilever 51. Multiple first cantilever 51s are fixedly connected to the top of the main frame 11, and reinforcing rods are fixedly connected between the first cantilever 51s. Stabilizing rods 16 are fixed on the main frame 11. The gaps between the stabilizing rods 16 at the top are large enough to allow workers to stick their heads out to work.

[0026] A diagonal brace 6 is provided between the vertical support frame 2 and the movable plate 3. A horizontally arranged footplate 61 is fixedly connected to the vertical support frame 2. The footplate 61 is fixedly connected to the diagonal brace 6, and the height of the footplate 61 is generally flush with the bottom surface of the anti-throw net. The vertical support frame 2 is a frame structure, and a working space is reserved in the upper middle part of the vertical support frame 2 to allow the anti-throw net to pass through.

[0027] The limiting component includes a support column 71 detachably connected to the counterweight plate 4, a first baffle 72 sleeved on the support column 71 to prevent lateral displacement of the anti-throw net, and a second baffle 73 connected to the first baffle 72 to prevent longitudinal displacement of the anti-throw net. Multiple sets of support columns 71 are provided and symmetrically arranged. The first baffle 72 and the second baffle 73 are connected by an extension rod 74. One end of the extension rod 74 is fixedly connected to the first baffle 72, and the other end is fixedly connected to the second baffle 73.

[0028] Most anti-throw nets are rectangular structures, with four sets of support columns 71 arranged according to the position of the top corner of the rectangle.

[0029] The first baffle 72 is connected to the positioning pin 75 by a thread, and the support column 71 has a positioning hole that matches the positioning pin 75.

[0030] The counterweight plate 4 has multiple threaded holes 77 that match the support column 71, and the threaded holes 77 are arranged in an array.

[0031] Working principle: First, before construction, based on the dimensions of the anti-throw net to be installed, select the corresponding position in the array threaded holes 77 of the counterweight plate 4, and detachably connect four sets of support columns 71 to the counterweight plate 4 (arranged at the apex of the rectangle to match the rectangular structure of the anti-throw net). Then, install the first baffle 72 and lock it with the positioning pin 75 and the positioning hole of the support column 71, forming an anti-throw net limiting space with the second baffle 73. Place the anti-throw net to be installed in the limiting component and fix it. At the same time, add weights (such as sandbags or steel plates) to the counterweight plate 4 to counteract the load-bearing tilting force of the external hanging basket 1 during subsequent operations through the balance principle. Afterwards, the staff pushes the moving plate 3 to move the entire equipment to the designated installation position of the anti-throw net on the railway overpass beam surface. Then, the L-shaped first cantilever 51 (multiple sets are set and reinforced by reinforcing rods) at the top of the main frame 11 is mounted on the second cantilever 52 from top to bottom, so that the short side of the first cantilever 51 is in contact with the vertical support frame 2. Then, the first locking bolt 53 is passed through the first cantilever 51 and screwed into the mounting holes 54 at the corresponding heights on the second cantilever 52 and the vertical support frame 2, and the external hanging basket 1 is fixed by rigid connection to prevent shaking during operation. At the same time, the first support rod 14 between the main frame 11 and the guardrail 13 and the second support rod 15 between the main frame 11 and the first cantilever 51 further enhance the structural stability of the external hanging basket and ensure the safety of the working space. Next, the workers enter the enclosed working space of the external hanging basket 1 (formed by the main frame 11, the base plate 12, and three sets of guardrails 13, accommodating personnel and installation tools). During the operation, they can extend their bodies through the gap between the upper stabilizing rods 16 of the main frame 11, align themselves with the installation position, and then several workers (2 to 3 people) work together to take the anti-throw net from the limiting components of the counterweight plate 4, step onto the pedal, and use the height advantage of the pedal being flush with the bottom surface of the anti-throw net to install the anti-throw net onto the installation structure of the pre-set beam surface. During this process, the working space reserved in the upper part of the vertical support frame 2 allows the anti-throw net to pass through, avoiding structural obstruction that affects the installation operation. Finally, move the equipment to the next installation point and repeat the above "fix-install" steps until all anti-throw nets in the skylight point are installed. After the construction is completed, the support column 71, positioning pin 75 and other components can be disassembled to facilitate the storage and transportation of the equipment.

[0032] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.

[0033] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A vehicle for installing anti-throw nets, comprising an external hanging basket (1), characterized in that: The external hanging basket (1) is connected to the vertical support frame (2) via a support assembly. The vertical support frame (2) is fixedly connected to the movable plate (3). The rear end of the movable plate (3) is fixedly connected to the counterweight plate (4). The counterweight plate (4) is provided with a limiting assembly for placing the anti-throw net. The support assembly includes a first cantilever (51) fixedly connected to the external hanging basket (1) and a second cantilever (52) fixedly connected to the vertical support frame (2). A first locking bolt (53) is passed through the first cantilever (51), and the second cantilever (52) is fixedly connected to the vertical support frame (2). The arm (52) has mounting holes (54) corresponding to the first locking bolt (53); the limiting component includes a support column (71) detachably connected to the counterweight plate (4), a first baffle (72) sleeved on the support column (71) to prevent the anti-throw net from shifting laterally, and a second baffle (73) connected to the first baffle (72) to prevent the anti-throw net from shifting longitudinally. The support column (71) is provided in multiple sets and symmetrically arranged. The first baffle (72) and the second baffle (73) are connected by an extension rod (74).

2. The anti-throw net installation vehicle according to claim 1, characterized in that: A diagonal brace (6) is provided between the vertical support frame (2) and the movable plate (3). A horizontally arranged pedal (61) is fixedly connected to the vertical support frame (2), and the pedal (61) is fixedly connected to the diagonal brace (6).

3. The anti-throw net installation vehicle according to claim 1, characterized in that: The first baffle (72) is connected to the positioning pin (75) by a thread, and the support column (71) has a positioning hole that matches the positioning pin (75).

4. The anti-throw net installation vehicle according to claim 1, characterized in that: The counterweight plate (4) has multiple threaded holes (77) that match the support column (71), and the threaded holes (77) are arranged in an array.