Safety anti-falling device for water conservancy dam construction

Abstract

The utility model relates to a safety anti-falling device for water conservancy dam construction, which comprises two moving seats with U-shaped structures, an upper supporting wheel is arranged on the bottom wall of the horizontal section of each moving seat, one end of each moving seat is rotatably connected with a connecting rod, the bottom end of each connecting rod is sleeved with a sliding pipe in a sliding mode, and the sliding pipe is connected with the upper supporting wheel. During use, the basket-shaped structure defined by the bottom plate, the fence and the reinforcing surrounding edge is hung on the outer side of a dam fence through the movable base, constructors climb into the basket-shaped structure through the crawling ladder to conduct construction, and after construction of one position is completed, the fence can be fixed through the sliding pipe. A worker on a dam can push the moving seat to be matched with the upper supporting wheels and the side supporting wheels to push the whole structure to move to the next construction position for construction, an anti-falling device does not need to be erected through a scaffold in the construction process, the construction cost is reduced, and the construction efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy dam construction technology, specifically relating to a safety anti-fall device for water conservancy dam construction. Background Technology

[0002] During the construction of water conservancy dams, the top of the dam body is relatively narrow, and a large amount of work needs to be carried out on the side walls on both sides of the dam body. If the protective measures during the construction phase are not adequate, construction workers are prone to falling in the construction area if they are not careful. Falling workers are very likely to suffer serious injuries. Therefore, it is necessary to install fall protection devices for water conservancy dam construction to protect workers.

[0003] Traditional construction methods involve pre-embedding steel pipes during dam construction, connecting horizontal bars and vertical columns using scaffolding-specific fasteners, and then erecting fall protection devices. Using scaffolding consumes a lot of materials and labor, resulting in high costs and low construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed safety anti-fall device for water conservancy dam construction in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A safety anti-fall device for water conservancy dam construction includes two U-shaped movable seats. Upper support wheels are installed on the bottom wall of the horizontal section of each movable seat. A connecting rod is rotatably connected to one end of each movable seat. A sliding tube is slidably fitted onto the bottom end of the connecting rod. An adjustment structure for adjusting the height of the bottom end of the sliding tube is installed on the sliding tube. An L-shaped tie rod is welded to the middle section of the sliding tube. The bottom ends of the two sliding tubes and the two tie rods are fixedly connected to the same base plate. A protective structure is provided around the base plate. A set of wheel seats is installed at both ends of the protective structure near the dam body. Side support wheels are rotatably connected to two of the wheel seats in each set. A connecting plate is fixedly connected between the two movable seats and the end connected to the connecting rod. A climbing device is welded to the bottom of the connecting plate.

[0007] As a further optimization of this utility model, each of the two movable seats has a slot at one end connected to the connecting rod, and a rotating shaft is fixedly installed in the slot. A connecting ring is welded to the top of the connecting rod, and the connecting ring is sleeved on the rotating shaft and rotatably connected to the end of the movable seat through the rotating shaft.

[0008] As a further optimization of this utility model, the connecting rod has multiple equidistant adjustment holes along its height direction. The adjustment structure is a bolt screwed onto the top side wall of the slide tube. The middle section of the bolt passes through one of the adjustment holes and is slidably connected to the connecting rod through the adjustment hole.

[0009] As a further optimization of this utility model, the enclosure structure consists of multiple fences fixedly installed on the periphery of the upper surface of the base plate, and the top of the fence and the middle section of the fence are both fixedly installed with reinforced edging in the form of a rectangular frame.

[0010] As a further optimization of this utility model, the climbing device is a ladder welded to the bottom wall of the connecting plate, the bottom end of the ladder extends downward into the space enclosed by the multiple fences, and the maximum distance between the bottom end of the ladder and the base plate is no more than one meter.

[0011] As a further optimization of this utility model, multiple arc-shaped fall arresters are provided on the outer side of the ladder. The multiple fall arresters are equidistantly distributed along the height direction of the ladder, and the two ends of the fall arresters are welded and fixed to the outer walls of both sides of the ladder.

[0012] The beneficial effects of this utility model are as follows: In use, the basket-like structure formed by the base plate, fence and reinforced edging is suspended outside the dam fence by the movable seat. Construction workers can climb into the basket-like structure by climbing ladder to carry out construction. When one section of construction is completed, the workers on the dam can push the movable seat, with the help of the support wheels and side support wheels, to move the entire structure to the next construction position. The construction process does not require the erection of anti-fall devices on scaffolding, which not only reduces construction costs but also greatly improves construction efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall first cross-sectional structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the overall second cross-sectional structure of this utility model;

[0016] Figure 4 This is a utility model Figure 3 Enlarged view of a detail at point A in the middle.

[0017] In the diagram: 1. Movable seat; 2. Upper support wheel; 3. Connecting rod; 4. Connecting ring; 5. Adjustment hole; 6. Slide tube; 7. Bolt; 8. Tie rod; 9. Base plate; 10. Fence; 11. Reinforced edging; 12. Wheel seat; 13. Side support wheel; 14. Connecting plate; 15. Ladder; 16. Fall arrestor. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Example

[0020] like Figure 1 - Figure 4 As shown, a safety anti-fall device for the construction of a water conservancy dam includes two U-shaped movable seats 1. The movable seats 1 are used to suspend on the concrete guardrail set on the top of the water conservancy dam. The bottom wall of the horizontal section of the movable seat 1 is equipped with an upper support wheel 2. One end of the movable seat 1 is rotatably connected to a connecting rod 3. The ends of the two movable seats 1 connected to the connecting rod 3 are each provided with a slot. A rotating shaft is fixedly installed in the slot. A connecting ring 4 is welded to the top of the connecting rod 3. The connecting ring 4 is sleeved on the rotating shaft and rotatably connected to the end of the movable seat 1 through the rotating shaft. This allows the user to adjust the angle between the connecting rod 3 and the vertical section of the movable seat 1 through the connecting ring 4 and the rotating shaft to adapt to water conservancy dams with different slopes.

[0021] The connecting rod 3 has multiple equidistant adjustment holes 5 along its height direction. The bottom end of the connecting rod 3 is slidably fitted with a slide tube 6. An adjustment structure for adjusting the height of the bottom end of the slide tube 6 is installed on the slide tube 6. The adjustment structure is a bolt 7 screwed to the top side wall of the slide tube 6. The middle section of the bolt 7 passes through one of the adjustment holes 5 and is slidably connected to the connecting rod 3 through the adjustment hole 5. When the user uses it, the slide tube 6 can be slid up and down according to the height of the construction position. After adjusting the bottom end of the slide tube 6 to a suitable height, the bolt 7 passes through the corresponding adjustment hole 5 and is screwed to the top side wall of the slide tube 6, so that the connecting rod 3 and the slide tube 6 are relatively fixed.

[0022] The middle section of the sliding tube 6 is welded with an L-shaped tie rod 8. The bottom ends of the two sliding tubes 6 and the two tie rods 8 are fixedly connected to the same base plate 9. The base plate 9 is surrounded by a protective structure, which consists of multiple fences 10 fixedly installed on the upper surface of the base plate 9. The top and middle sections of the fences 10 are fixedly installed with reinforced edging 11 in the shape of a rectangular frame. The base plate 9 is set up so that construction workers can stand on it to carry out construction. Multiple fences 10 are set up around the base plate 9, and reinforced edging 11 is installed at the top and middle sections of the fences 10 to form a fence of a certain height to protect the workers working on the base plate 9 and to minimize the risk of workers accidentally falling from the side of the base plate 9.

[0023] A set of wheel seats 12 is installed at both ends of the retaining structure near the dam body. Each set of two wheel seats 12 is rotatably connected to a side support wheel 13. The wheel seats 12 are set to install the side support wheels 13. The side support wheels 13 are in contact with the side wall of the water conservancy dam. When construction is completed in one place, the movable seat 1 can be pushed. The upper support wheel 2 cooperates with the side support wheels 13 to move along the length of the dam to adjust the position of the base plate 9, so as to facilitate the user to carry out construction at different positions of the top side wall of the dam.

[0024] A connecting plate 14 is fixedly connected between the two movable seats 1 and the connecting rod 3. A climbing device is welded to the bottom of the connecting plate 14. The climbing device is a ladder 15 welded to the bottom wall of the connecting plate 14. The bottom end of the ladder 15 extends downward into the space enclosed by multiple fences 10. The maximum distance between the bottom end of the ladder 15 and the base plate 9 is no more than one meter. After the entire device is suspended on the concrete guardrail set on the top of the water conservancy dam by the movable seats 1, the construction workers can climb down through the ladder 15 and enter the space enclosed by the base plate 9 and multiple fences 10 to carry out construction.

[0025] Multiple arc-shaped fall arresters 16 are installed on the outside of the ladder 15. The multiple fall arresters 16 are equidistantly distributed along the height direction of the ladder 15. The two ends of the fall arresters 16 are welded and fixed to the outer walls on both sides of the ladder 15. The multiple equidistant fall arresters 16 installed on the outside of the ladder 15 are used to form a tubular structure together with the ladder 15 to protect the construction workers climbing the ladder 15 and minimize the risk of falling during the climbing process.

[0026] It should be noted that, in use, this safety anti-fall device for dam construction involves first sliding the slide tube 6 along the length of the connecting rod 3 according to the construction location of the dam, adjusting the bottom of the slide tube 6 to a suitable height. Then, bolts 7 are threaded through the corresponding adjustment holes 5 on the connecting rod 3 and screwed onto the top side wall of the slide tube 6, thus fixing the slide tube 6 and the connecting rod 3 relatively. At this point, the movable seat 1 can be attached and suspended on the concrete guardrail installed at the top of the dam, ensuring that the upper support wheel 2 installed on the bottom wall of the horizontal section of the movable seat 1 is in contact with the top of the concrete guardrail. The base plate 9 installed at the bottom of the slide tube 6 and the tie rod 8 is suspended outside the dam via the movable seat 1. Workers can climb over the concrete guardrail and descend the ladder 15 to enter the space enclosed by the base plate 9, fence 10, and reinforced perimeter 11 to carry out construction on the dam. After completing construction at one location on the dam, the construction workers on the dam can push the movable seat 1, which, through the upper support wheel 2 and the side support wheel 13 installed on the maintenance structure near the dam, moves along the length of the dam, thus moving the entire device to the next construction location. This facilitates construction at different locations on the top sidewall of the dam. Since the construction process does not require the erection of anti-fall devices on scaffolding, it not only reduces construction costs but also greatly improves construction efficiency.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A safety anti-fall device for water conservancy dam construction, comprising two U-shaped movable seats (1), characterized in that: The movable seat (1) is equipped with an upper support wheel (2) on the bottom wall of the horizontal section. One end of the movable seat (1) is rotatably connected to a connecting rod (3). The bottom end of the connecting rod (3) is slidably fitted with a sliding tube (6). An adjustment structure for adjusting the height of the bottom end of the sliding tube (6) is installed on the sliding tube (6). The middle section of the sliding tube (6) is welded with an L-shaped tie rod (8). The bottom ends of the two sliding tubes (6) and the two tie rods (8) are fixedly connected to the same base plate (9). The base plate (9) is surrounded by a protective structure. A set of wheel seats (12) is installed at both ends of the protective structure near the dam body. The two wheel seats (12) in each set are rotatably connected to a side support wheel (13). A connecting plate (14) is fixedly connected between the two movable seats (1) and the connecting rod (3). A climbing device is welded to the bottom of the connecting plate (14).

2. The safety anti-fall device for water conservancy dam construction according to claim 1, characterized in that: Both movable seats (1) have slots at one end connected to the connecting rod (3), and a rotating shaft is fixedly installed in the slot. A connecting ring (4) is welded to the top of the connecting rod (3), and the connecting ring (4) is sleeved on the rotating shaft and rotatably connected to the end of the movable seat (1) through the rotating shaft.

3. The safety anti-fall device for water conservancy dam construction according to claim 1, characterized in that: The connecting rod (3) has multiple equidistant adjustment holes (5) along its height direction. The adjustment structure is a bolt (7) screwed onto the top side wall of the slide tube (6). The middle section of the bolt (7) passes through one of the adjustment holes (5) and is slidably connected to the connecting rod (3) through the adjustment hole (5).

4. A safety anti-fall device for water conservancy dam construction according to claim 1, characterized in that: The enclosure structure consists of multiple fences (10) fixedly installed on the periphery of the upper surface of the base plate (9). The top of the fence (10) and the middle section of the fence (10) are both fixedly equipped with reinforced edging (11) in the shape of a rectangular frame.

5. A safety anti-fall device for water conservancy dam construction according to claim 4, characterized in that: The climbing device is a ladder (15) welded to the bottom wall of the connecting plate (14). The bottom end of the ladder (15) extends downward into the space enclosed by the multiple fences (10). The maximum distance between the bottom end of the ladder (15) and the base plate (9) is no more than one meter.

6. A safety anti-fall device for water conservancy dam construction according to claim 5, characterized in that: Multiple arc-shaped fall arresters (16) are provided on the outside of the ladder (15). The multiple fall arresters (16) are equidistantly distributed along the height direction of the ladder (15). The two ends of the fall arresters (16) are welded and fixed to the outer walls of both sides of the ladder (15).

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