A high-altitude operation protection device for a cushion stone

Abstract

The utility model relates to bridge high altitude operation technical field especially relates to a cushion stone high altitude operation protection device. The cushion stone high altitude operation protection device includes main stand and auxiliary stand, is seted up with mounting groove on the main stand, and a plurality of groups of rail part components that distribute equidistance up and down are installed in the mounting groove, and the main stand is installed with locking part. The cushion stone high altitude operation protection device provided by the utility model through the combination structure of main stand, auxiliary stand and fixed frame, only need to utilize screw to fix the fixed frame on the bent cap during installation and can complete basic positioning, need not complex on -the -spot assembly process, at the same time, the protection zone can realize free expansion through the winding wheel, can flexibly adjust the interval of main stand and auxiliary stand according to the bent cap length, adapts the cushion stone operation demand of different specifications bent cap, avoids the problem that the size of traditional scaffold or prefabricated guardrail is fixed, and the adaptability is poor.

Description

Technical Field

[0001] This utility model relates to the field of bridge high-altitude operation technology, and in particular to a protective device for high-altitude operation of bridge pad stones. Background Technology

[0002] Currently, bridges in mountainous and hilly areas mostly adopt precast beam structures, with the substructure designed as a column-to-cap beam configuration. Due to construction technology and quality control requirements, the simultaneous construction of bearing pads and cap beams is highly restrictive, and the installation intervals of bearings overlap, often requiring subsequent secondary construction. Furthermore, during the construction of bearing pads and the installation of bearings, the work platforms and protective facilities set up during the cap beam construction are often removed, resulting in significant risks associated with high-altitude work during bearing pad construction and installation. Industry-standard protective measures for high-altitude work involving bearing pads are mainly divided into two categories: One approach is to use traditional steel pipe scaffolding to build the protective frame. This method requires on-site cutting and assembly of steel pipes, which are then connected with fasteners to form a closed protective area. However, this method has significant drawbacks: First, the construction process is time-consuming and requires multiple workers to work together. The steel pipes, fasteners, and other components are heavy and difficult to handle at heights, which not only reduces construction efficiency but also increases the risk of falls. Second, the scaffolding dimensions are fixed, making it impossible to flexibly adjust the protective range according to changes in the length of the cap beam or the position of the pad stones. This method is not suitable for scenarios involving irregularly shaped cap beams or simultaneous construction of multiple sets of pad stones. In addition, the components are scattered after dismantling the scaffolding, requiring a large storage space. Furthermore, the fastener tightness must be checked individually before reuse, resulting in high maintenance costs.

[0003] Secondly, prefabricated metal guardrails are used. Although these guardrails do not require on-site cutting, their integrated design results in large size and heavy weight. When transported to the top of the cap beam, they require the assistance of large hoisting equipment, which is greatly limited by the site conditions and the accessibility of hoisting equipment. At the same time, the protective width and height of the prefabricated guardrails are fixed. When the distance between the pad stone construction position and the guardrail does not meet the safety specifications, additional protective components need to be added, which is cumbersome and prone to protective loopholes.

[0004] Therefore, it is necessary to provide a new protective device for high-altitude operations using paved stones to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a protective device for high-altitude operations using stone pads.

[0006] The high-altitude operation protection device provided by this utility model includes a main column and an auxiliary column. The main column is provided with an installation groove, and several sets of railing components are installed in the installation groove at equal intervals. The railing component includes a rotating shaft, which is rotatably installed in a mounting groove. A winding wheel is fixedly connected to the rotating shaft, and a protective strip is wound around the winding wheel. The other end of the protective strip is fixedly connected to the column surface opposite to the auxiliary post. A gear is also fixedly mounted on the rotating shaft, and the gears on adjacent rotating shafts are meshed with each other. The main column is equipped with a locking component, which includes a ratchet mounted on the top rotating shaft and a pawl for locking the ratchet.

[0007] Preferably, the rotating shaft in the topmost railing component extends out of the main post and is fixedly connected to the connecting end of the ratchet.

[0008] Preferably, the locking component further includes a mounting plate, which is fixedly mounted on the outer column surface of the main column, and a connecting rod is fixedly mounted on the mounting plate. The connecting end of the pawl is sleeved on the connecting rod and rotatably connected to the connecting rod. A torsion spring is sleeved on the connecting rod, and the two ends of the torsion spring are respectively inserted into the insertion holes opened on both sides of the connecting end of the pawl. When the auxiliary column moves away from the main column, the transmission torque of the pawl and the ratchet is opposite.

[0009] Preferably, a hook is fixedly installed on the mounting plate, and a U-shaped rope is fixedly fitted onto the pawl.

[0010] Preferably, a crank handle is fixedly mounted on the ratchet.

[0011] Preferably, the main column and the auxiliary column have insertion slots on their opposite column surfaces, and the auxiliary column has insertion protrusions that match the insertion slots.

[0012] Preferably, the top of the main column and the auxiliary column are fixedly installed with a fixing frame.

[0013] Compared with related technologies, the high-altitude work safety device with stone pads provided by this utility model has the following beneficial effects: 1. This utility model uses a combination structure of main column, auxiliary column and fixing frame. During installation, the fixing frame can be fixed to the cap beam with screws to complete the foundation positioning. There is no need for complicated on-site assembly process. At the same time, the protective belt can be freely extended and retracted by the winding wheel. The distance between the main column and auxiliary column can be flexibly adjusted according to the length of the cap beam to adapt to the pad stone operation requirements of cap beams of different specifications. This avoids the problems of fixed size and poor adaptability of traditional scaffolding or prefabricated guardrails. 2. When unfolding, simply pull up the U-shaped rope to disengage the pawl from the ratchet, and pull out the auxiliary column to extend the protective belt. When storing, the reel can be driven by the crank to store the protective belt, reducing manual labor and construction costs. With the addition of binding ropes for fixation, the overall size of the device is greatly reduced, the weight is concentrated and the structure is compact, making it easy for workers to move to different work sites and reducing storage space occupancy. Attached Figure Description

[0014] Figure 1 One of the structural schematic diagrams of a preferred embodiment of the high-altitude work safety device with pad stones provided by this utility model; Figure 2 A second structural schematic diagram of a preferred embodiment of the high-altitude work safety device for pad stones provided by this utility model; Figure 3 for Figure 1 The diagram shows the structural design of the railing components. Figure 4 for Figure 1 The diagram shows the structure of the locking component.

[0015] The diagram is labeled as follows: 1. Main post; 1a. Mounting slot; 1b. Insertion slot; 2. Auxiliary post; 21. Insertion protrusion; 3. Railing component; 31. Rotating shaft; 32. Rewinding wheel; 33. Protective belt; 34. Gear; 4. Locking component; 41. Ratchet; 42. Pad; 43. Mounting plate; 44. Connecting rod; 45. Hook; 46. U-shaped rope; 47. Handle; 5. Fixing frame. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0018] Please see Figures 1 to 4 This utility model provides a high-altitude work safety device for stone pads, which includes a main column 1, an auxiliary column 2, a railing component 3, and a locking component 4.

[0019] In the embodiments of this utility model, please refer to Figures 1 to 4The main column 1 and the auxiliary column 2 are fixedly mounted with a fixing frame 5. The main column 1 is provided with a mounting groove 1a, and several sets of railing components 3 are installed in the mounting groove 1a at equal intervals. The railing component 3 includes a rotating shaft 31, which is rotatably installed in the mounting groove 1a. A winding wheel 32 is fixedly connected to the rotating shaft 31. A protective belt 33 is wound on the winding wheel 32, and the other end of the protective belt 33 is fixedly connected to the column surface opposite to the auxiliary column 2. A gear 34 is also fixedly mounted on the rotating shaft 31, and the gears 34 on adjacent rotating shafts 31 are meshed with each other. A locking component 4 is installed on the main column 1.

[0020] It should be noted that: when this application is not used, since the transmission torque of the pawl 42 and the ratchet 41 is opposite when the auxiliary column 2 moves away from the main column 1, rotating the crank 47 while the main column 1 and the auxiliary column 2 are in contact with each other will cause the uppermost rotating shaft 31 to rotate. Since the gears 34 installed on each rotating shaft 31 mesh with each other, the winding wheels 32 on all rotating shafts 31 will retract the protective belt 33 on the outside, thus the main column 1 and the auxiliary column 2 will be in contact with each other, thereby greatly reducing the risk of injury. The size of the application makes it easy for workers to handle. When installing this application as a guardrail structure on the cover beam, the fixing bracket 5 on the main column 1 is fixed to the cover beam in advance with screws. Then, the pawl 42 is released from locking the ratchet 41, and the auxiliary column 2 is pulled outward. Therefore, the protective belt 33 on the winding wheel 32 can slide out of the mounting groove 1a. After the auxiliary column 2 is moved to the appropriate position, the fixing bracket 5 on the auxiliary column 2 is fixed to the cover beam with screws. After completion, the pawl 42 is used to lock the ratchet 41. This protective device is easy to install. It consists of multiple horizontally stretched protective strips 33 as the main protective structure. It can be reasonably adjusted according to the length of the cover beam, making it highly flexible and widely applicable. The overall structure is compact, lightweight, and easy to transport, and can be modified according to different needs.

[0021] Furthermore, the main column 1 and the auxiliary column 2 are provided with insertion slots 1b on their opposite column surfaces, and the auxiliary column 2 is fixedly installed with insertion protrusions 21 that match the insertion slots 1b. When the main column 1 and the auxiliary column 2 are in contact with each other, the insertion protrusions 21 are inserted into the insertion slots 1b to achieve the engagement of the main column 1 and the auxiliary column 2. Then, the main column 1 and the auxiliary column 2 are fixed with ropes for later handling and storage.

[0022] In the embodiments of this utility model, please refer to Figures 1 to 4The locking component 4 includes a ratchet 41 mounted on the top-level rotating shaft 31 and a pawl 42 for locking the ratchet 41. Specifically, the rotating shaft 31 in the top-level railing component 3 extends out of the main post 1 and is fixedly connected to the connecting end of the ratchet 41. The locking component 4 also includes a mounting plate 43, which is fixedly mounted on the outer column surface of the main post 1. A connecting rod 44 is fixedly mounted on the mounting plate 43. The connecting end of the pawl 42 is sleeved on the connecting rod 44 and rotatably connected to the connecting rod 44. A torsion spring is sleeved on the connecting rod 44. The two ends of the torsion spring are respectively inserted into the insertion holes on both sides of the connecting end of the pawl 42. A hook 45 is fixedly mounted on the mounting plate 43. A U-shaped rope 46 is fixedly embedded on the pawl 42. A crank 47 is fixedly mounted on the ratchet 41. When the auxiliary post 2 moves away from the main post 1, the transmission torque of the pawl 42 and the ratchet 41 is opposite.

[0023] It should be noted that: because the transmission torques of the pawl 42 and ratchet 41 are opposite when the auxiliary column 2 moves away from the main column 1, the transmission torques of the pawl 42 and ratchet 41 are positive when the auxiliary column 2 moves towards the main column 1. Therefore, When this application is not in use, the main column 1 and the auxiliary column 2 are brought into contact with each other while the crank handle 47 is rotated so that the winding wheel 32 can be used to store the protective belt 33 on the outside. When using this application, the main column 1 is far from the auxiliary column 2. It is necessary to pull up the U-shaped rope 46 to drive the pawl 42 to disengage from the ratchet 41, and then hook the U-shaped rope 46 onto the hook 45. Then, pull the auxiliary column 2 outward so that the main column 1, the auxiliary column 2 and the protective belt 33 form a protective barrier structure. After completion, the U-shaped rope 46 is removed from the hook 45, and the pawl 42 is inserted into the tooth groove of the ratchet 41 under the action of the torsion spring, and the ratchet 41 is locked. Therefore, the winding wheel 32 no longer releases the protective belt 33 outward, avoiding the protective belt 33 from accidentally contracting due to external force, and ensuring the stability of the protection range.

[0024] The working principle of the high-altitude operation protection device with pad stones provided by this utility model is as follows: This application utilizes a combined structure of main column 1, auxiliary column 2, and fixing frame 5. During installation, the fixing frame 5 can be fixed to the cap beam using screws to complete the foundation positioning, eliminating the need for a complicated on-site assembly process. Meanwhile, the protective belt 33 can be freely extended and retracted via the winding wheel 32, allowing for flexible adjustment of the distance between the main column 1 and auxiliary column 2 according to the length of the cap beam. This adapts to the needs of pad stone operations for cap beams of different specifications, avoiding the problems of fixed dimensions and poor adaptability of traditional scaffolding or prefabricated guardrails. When not in use, the top rotating shaft 31 can be driven by rotating the crank handle 47. The meshing transmission of the gears 34 on the adjacent rotating shafts 31 drives all the winding wheels 32 to synchronously retract the protective belt 33, so that the main column 1 and the auxiliary column 2 fit together. At the same time, the insertion slot 1b of the main column 1 and the insertion protrusion 21 of the auxiliary column 2 can be precisely engaged. After being fixed with the binding rope, the overall size of the device is greatly reduced, the weight is concentrated and the structure is compact, making it easy for workers to move to different work surfaces and reducing the storage space occupation rate. When unfolding, simply pull up the U-shaped rope 46 to disengage the pawl 42 from the ratchet 41, and pull the auxiliary column 2 to release the protective belt 33. When retracting, the winding wheel 32 can be driven by the crank handle 47 to retract the protective belt 33, reducing labor input and construction costs.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective device for high-altitude operations using stone pads, comprising a main column (1) and an auxiliary column (2), characterized in that, The main column (1) is provided with an installation groove (1a), and a number of railing components (3) are installed in the installation groove (1a) at equal intervals. The railing component (3) includes a rotating shaft (31), which is rotatably installed in the mounting groove (1a). A winding wheel (32) is fixedly connected to the rotating shaft (31), and a protective belt (33) is wound around the winding wheel (32). The other end of the protective belt (33) is fixedly connected to the column surface opposite to the auxiliary column (2). A gear (34) is also fixedly fitted on the rotating shaft (31), and the gears (34) on adjacent rotating shafts (31) are meshed with each other. The main column (1) is equipped with a locking component (4), and the locking component (4) includes a ratchet (41) mounted on the top rotating shaft (31) and a pawl (42) for locking the ratchet (41).

2. The high-altitude work protection device based on a stone pad as described in claim 1, characterized in that, The rotating shaft (31) in the topmost railing component (3) extends out of the main post (1) and is fixedly connected to the connecting end of the ratchet (41).

3. The high-altitude work protection device based on a stone pad as described in claim 2, characterized in that, The locking component (4) also includes a mounting plate (43), which is fixedly mounted on the outer column surface of the main column (1), and a connecting rod (44) is fixedly mounted on the mounting plate (43). The connecting end of the pawl (42) is sleeved on the connecting rod (44) and rotatably connected to the connecting rod (44). A torsion spring is sleeved on the connecting rod (44), and the two ends of the torsion spring are respectively inserted into the insertion holes opened on both sides of the connecting end of the pawl (42). When the auxiliary column (2) moves away from the main column (1), the transmission torque of the pawl (42) and the ratchet (41) is opposite.

4. The high-altitude work protection device based on a stone pad as described in claim 3, characterized in that, A hook (45) is fixedly installed on the mounting plate (43), and a U-shaped rope (46) is fixedly fitted on the pawl (42).

5. The high-altitude work protection device based on a stone pad as described in claim 4, characterized in that, A crank handle (47) is fixedly installed on the ratchet (41).

6. The high-altitude work protection device based on a stone pad as described in claim 1, characterized in that, The main column (1) and the auxiliary column (2) are provided with insertion slots (1b) on their opposite column surfaces, and the auxiliary column (2) is fixedly installed with insertion protrusions (21) that match the insertion slots (1b).

7. The high-altitude work protection device based on a stone pad as described in claim 1, characterized in that, The main column (1) and the auxiliary column (2) are fixedly installed with a fixing frame (5).

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