Anti-falling device for operation of secondary sedimentation tank

Abstract

The utility model belongs to the technical field of operation construction protection, and particularly discloses a secondary sedimentation tank operation anti-falling device which comprises a machine frame, one end of the machine frame is rotatably connected with sliding wheels, the other end of the machine frame is arranged in a suspended mode, and the sliding wheels comprise the first sliding wheel and the second sliding wheel. The first sliding wheel is positioned above the second sliding wheel, an annular guide rail is mounted at the top of a tank body of the secondary sedimentation tank, and the first sliding wheel and the second sliding wheel are respectively positioned at the upper part and the lower part of the annular guide rail and slide along the annular guide rail. In the process of cleaning and overhauling the secondary sedimentation tank, operators can be prevented from falling off, and the secondary sedimentation tank is convenient to move.

Description

Technical Field

[0001] This utility model relates to the field of construction safety technology, specifically to a fall prevention device for secondary sedimentation tank operations. Background Technology

[0002] Currently, in wastewater treatment, the secondary sedimentation tank is a sedimentation tank after biological treatment. Its function is to separate mud and water, clarify the mixed liquor, concentrate the sludge, and return the separated sludge to the biological treatment section.

[0003] Due to long-term use, algae may grow on the side walls of the secondary sedimentation tank, and some inlets, outlets, or other structures within the tank may develop problems, requiring regular cleaning and maintenance.

[0004] When cleaning or repairing secondary sedimentation tanks, existing technologies typically involve operators cleaning and repairing inside the tank. During this process, operators are prone to improper operation or accidental falls. Therefore, to prevent falls, operators need to wear safety belts, which are secured to fixed objects near the secondary sedimentation tank. This method limits the operator's cleaning and repair range. When it is necessary to move to the next part of the tank for cleaning or repair, the safety belt needs to be reattached to a new position. This method is not only cumbersome and inefficient, but also inconvenient to operate while moving around, resulting in poor safety. Utility Model Content

[0005] This utility model provides a fall prevention device for secondary sedimentation tank operations, which aims to prevent operators from falling during the cleaning and maintenance of secondary sedimentation tanks and facilitates movement.

[0006] This utility model is achieved through the following technical solution: a fall prevention device for secondary sedimentation tank operation, including a frame, one end of which is rotatably connected to a sliding wheel, and the other end of which is suspended in the air. The sliding wheel includes a first sliding wheel and a second sliding wheel, with the first sliding wheel located above the second sliding wheel. An annular guide rail is installed on the top of the secondary sedimentation tank, with the first sliding wheel and the second sliding wheel located at the upper and lower parts of the annular guide rail, respectively, and sliding along the annular guide rail.

[0007] Compared with existing technologies, this solution has the following advantages and beneficial effects:

[0008] In this solution, a frame is installed, and a first sliding wheel and a second sliding wheel are installed on the frame. During installation, the first sliding wheel and the second sliding wheel are located at the upper and lower parts of the circular guide rail, respectively. This allows the entire frame to slide along the circular guide rail. When in use, the operator puts on a safety belt and fixes one end of the safety belt to the suspended end of the frame. This allows the operator to perform safe operations and prevents the operator from falling during the operation.

[0009] In this solution, operators can walk along the pool and change their work position as needed. When changing work positions, there is no need to repeatedly remove and install safety belts. The operator can move the entire frame while walking to adapt to the work position required by the operator. The whole process is flexible and convenient, and easy to move. During maintenance or cleaning, it can not only prevent operators from falling, but also allow them to move freely within the circumference of the pool to adjust their position.

[0010] Furthermore, the first sliding wheel has at least two parts, and the second sliding wheel has at least one part.

[0011] In this design, at least two first pulleys are provided to ensure the stability of the fit between the frame and the circular guide rail, while at least one second pulley is provided to cooperate with the first pulleys to form a more stable fit, enabling the frame to move stably along the circular guide rail.

[0012] Furthermore, there are two first sliding wheels and one second sliding wheel. The two first sliding wheels are located on both sides of the frame, and the second sliding wheel is located between the two first sliding wheels.

[0013] In this design, the arrangement of two first sliding wheels and one second sliding wheel forms a triangular structure, which is stable and simpler.

[0014] Furthermore, the frame includes a support frame and a mounting frame, the mounting frame being fixedly connected to the support frame, and both the mounting frame and the support frame having a hollow structure.

[0015] In this design, the mounting frame and support frame are hollow structures, which makes the entire frame lighter, easier to move, and reduces the pressure on the circular guide rail.

[0016] Furthermore, the support frame is inclined, and the mounting bracket is fixedly connected to the lower part of the support frame.

[0017] The inclined design of the support frame in this solution allows for better load-bearing capacity of the entire frame.

[0018] Furthermore, the support frame is a rectangular frame structure, and the mounting frame includes two side connecting frames, which are fixedly connected to both sides of the support frame respectively; an upper connecting rod, a middle connecting rod, and a lower connecting rod are connected between the two side connecting frames, the two ends of the upper connecting rod are connected to the upper part of the two side connecting frames respectively, the two ends of the middle connecting rod are connected to the middle part of the two side connecting frames respectively, and the two ends of the lower connecting rod are connected to the lower part of the two side connecting frames respectively.

[0019] The support frame and mounting frame in this design form a hollow structure, which is more lightweight. In addition, the two side connecting frames and the upper connecting rod, the middle connecting rod and the lower connecting rod in the mounting frame are interconnected, so that the entire mounting frame forms a structurally stable hollow frame structure.

[0020] Furthermore, a crossbeam is fixedly connected to the inner side of the support frame.

[0021] This design enhances the strength of the support frame.

[0022] Furthermore, a vertically arranged vertical connecting rod is fixedly connected to the frame, and an auxiliary wheel is rotatably connected to the lower part of the vertical connecting rod. The outer side of the auxiliary wheel can contact the inner wall of the secondary sedimentation tank and roll along the inner wall of the secondary sedimentation tank.

[0023] This arrangement of auxiliary wheels improves the stability of the entire frame and further ensures the smoothness of the frame during movement.

[0024] Furthermore, the auxiliary wheel is a rubber wheel made of rubber material.

[0025] For ease of cleaning, the side walls of secondary sedimentation tanks are usually tiled. In this design, the auxiliary wheels are rubber wheels, which can prevent damage to the tiles on the side walls of the tank as the frame moves along the tank.

[0026] Furthermore, both the first and second sliding wheels have arc-shaped grooves formed on their outer circumferences.

[0027] In this design, the arc-shaped grooves on the first and second sliding wheels can better match the contact surface of the annular guide rail, thus making the cooperation between the first and second sliding wheels and the annular guide rail smoother and less likely to detach from the guide rail during movement. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0029] Figure 1This is a perspective view of Embodiment 1 of the fall prevention device for secondary sedimentation tank operations according to this utility model;

[0030] Figure 2 This is a side view of the device for preventing falls during secondary sedimentation tank operations according to Embodiment 1 of this utility model, which is in conjunction with the annular guide rail.

[0031] Figure 3 This is a side view of Embodiment 3 of the anti-fall device for secondary sedimentation tank operations according to this utility model.

[0032] The attached diagram shows the markings and corresponding component names:

[0033] Support frame 1, crossbeam 101, mounting frame 2, side connecting frame 200, lower connecting rod 201, middle connecting rod 202, upper connecting rod 203, vertical connecting rod 3, mounting plate 4, auxiliary wheel 5, first sliding wheel 6, second sliding wheel 7, connecting shaft 8, pool body 9, railing 10, fixing rod 11, circular guide rail 12, fall arrestor 13. Detailed Implementation

[0034] 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 embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0035] Example 1

[0036] like Figures 1-2 As shown, this embodiment 1 provides a fall prevention device for secondary sedimentation tank operations, including a frame. One end of the frame is rotatably connected to a sliding wheel, and the other end of the frame is suspended in the air. In this embodiment, the frame includes a support frame 1 and a mounting frame 2. Both the mounting frame 2 and the support frame 1 are hollow structures. The support frame 1 is set horizontally or inclined. In this embodiment, the support frame 1 is inclined. The mounting frame 2 is fixedly connected to the lower part of the support frame 1. In this embodiment, the mounting frame 2 and the support frame 1 are fixed by welding, screws, or other means.

[0037] In this embodiment, the support frame 1 is a rectangular frame structure. A crossbeam 101 is fixedly connected to the inner side of the frame of the support frame 1. The crossbeam 101 is integrally formed with the support frame 1, or welded or fixed with screws. The crossbeam 101 can enhance the strength of the entire support frame 1.

[0038] The mounting bracket 2 in this embodiment includes two side connecting brackets 200. The two side connecting brackets 200 are fixedly connected to both sides of the support bracket 1. In this embodiment, the top and bottom of the side connecting bracket 200 are both planar structures. The side of the side connecting bracket 200 that is connected to the support bracket 1 has an inclined shape that matches the support bracket 1, so that the connection between the side connecting bracket 200 and the support bracket 1 can be more matched.

[0039] An upper connecting rod 203, a middle connecting rod, and a lower connecting rod 201 connect the two side connecting frames 200. The two ends of the upper connecting rod 203 are fixedly connected to the upper parts of the two side connecting frames 200, the two ends of the middle connecting rod are fixedly connected to the middle parts of the two side connecting frames 200, and the two ends of the lower connecting rod 201 are fixedly connected to the lower parts of the two side connecting frames 200. In this embodiment, one upper connecting rod 203 is provided, and the two ends of the upper connecting rod 203 are integrally formed or welded to the two side connecting frames 200. One middle connecting rod is provided. The two ends of the middle connecting rod are integrally formed or welded to the two side connecting frames 200 respectively. In this embodiment, the upper connecting rod 203 is located on the left side of the middle connecting member, so that the upper connecting rod 203 and the middle connecting rod are staggered. There are two lower connecting rods 201, which are horizontally spaced from each other. The two ends of the lower connecting rod 201 are integrally formed or welded to the two side connecting frames 200 respectively. In this way, the two side connecting frames 200, the upper connecting rod 203, the middle connecting rod and the lower connecting rod 201 form a hollow mounting frame 2 structure.

[0040] In this embodiment, the sliding wheels include a first sliding wheel 6 and a second sliding wheel 7. The first sliding wheel 6 is located above the second sliding wheel 7, combined with... Figure 2 As shown, a ring-shaped guide rail 12 is installed on the top of the secondary sedimentation tank 9. Specifically, multiple circumferentially spaced railings 10 are installed around the top of the secondary sedimentation tank 9. The ring-shaped guide rail 12 is arranged in a ring around the tank 9, and the ring-shaped guide rail 12 is connected to the railings 10 by welding fixing rods 11. The first sliding wheel 6 and the second sliding wheel 7 are located at the upper and lower parts of the ring-shaped guide rail 12, respectively, and slide along the ring-shaped guide rail 12. Specifically, there are at least two first sliding wheels 6 and at least one second sliding wheel 7. Figure 1 As shown, in this embodiment, there are two first sliding wheels 6 and one second sliding wheel 7. The two first sliding wheels 6 are located on both sides of the frame, that is, the two first sliding wheels 6 are located on the top of the two side connecting frames 200 respectively. The second sliding wheel 7 is located between the two first sliding wheels 6. In this embodiment, the second sliding wheel 7 is located on the middle connecting rod. When the first sliding wheel 6 and the second sliding wheel 7 are installed, they are both connected by welding a connecting shaft 8 to the frame. One end of the connecting shaft 8 extends out of the frame. The first sliding wheel 6 and the second sliding wheel 7 are rotatably connected to the connecting shaft 8 through bearings.

[0041] In this embodiment, arc-shaped grooves are provided on the outer sides of the first sliding wheel 6 and the second sliding wheel 7 along their circumference. This allows the first sliding wheel 6 and the second sliding wheel 7 to fit snugly against the outer surface of the annular guide rail 12, resulting in better matching, less friction during movement, and easier sliding.

[0042] like Figure 1As shown, in this embodiment, a vertically arranged vertical connecting rod 3 is fixedly connected to the frame. Specifically, the upper and lower parts of the vertical connecting rod 3 are welded or screwed to the upper connecting rod 203 and the lower connecting rod 201, respectively. The bottom of the vertical connecting rod 3 extends below the lower connecting rod 201, and an auxiliary wheel 5 is rotatably connected to the lower part of the vertical connecting rod 3. The outer side of the auxiliary wheel 5 can contact the inner wall of the secondary sedimentation tank 9 and roll along the inner wall of the secondary sedimentation tank 9. In this embodiment, two vertically spaced mounting plates 4 are vertically welded to the lower part of the vertical connecting rod 3, and the two ends of the auxiliary wheel 5 are rotatably engaged with the two mounting plates 4 through a rotating shaft.

[0043] In this embodiment, the auxiliary wheel 5 is a rubber wheel made of rubber material, which can protect the inner wall of the pool body 9 and prevent the tiles on the inner wall of the pool body 9 from being crushed or damaged during the rolling process.

[0044] The specific implementation process is as follows:

[0045] Combination Figure 2 As shown, when assembling and installing the fall protection device in this embodiment, the two first sliding wheels 6 and the second sliding wheel 7 are respectively placed on the annular guide rail 12 and are in contact with the annular guide rail 12, and the auxiliary wheel 5 abuts against the inner wall of the pool body 9.

[0046] When cleaning or maintenance of the secondary sedimentation tank is required, the operator wears a safety belt, with one end secured to the end of the support frame 1 furthest from the mounting frame 2. With the safety belt and fall arrestor in place, the operator can clean or maintain the secondary sedimentation tank safely, preventing falls. When the operator needs to move to another location for maintenance, there is no need to loosen and re-secure the safety belt. The operator simply walks to the designated location, and the safety belt and fall arrestor (in this embodiment) move along the annular guide rail 12 to the designated position. Throughout the movement, the fall arrestor continuously protects the operator from falls.

[0047] Example 2

[0048] The difference between this embodiment and embodiment 1 is that: in this embodiment, there are two second sliding wheels 7, which are spaced apart on the middle connecting rod. This embodiment provides a scheme of setting two second sliding wheels 7, which can also achieve the purpose of sliding along the annular guide rail 12.

[0049] Example 3

[0050] Combination Figure 3As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, a fall arrestor 13 is connected to the end of the support frame 1 furthest from the mounting frame 2. The fall arrestor 13 uses the difference in the falling speed of an object for self-control. Under normal use, the safety rope on the fall arrestor 13 will freely extend and retract with the human body, and under the action of the internal mechanism, it will be in a semi-tensioned state, so that the operator will not feel any lingering tension. In case of accidental fall, the safety rope will be pulled out at a significantly faster speed, and the locking system inside the device will automatically lock to ensure that the person is not injured. The work will automatically resume when the load is released. After the work is completed, the safety rope will be automatically retracted into the device for easy carrying. The fall arrestor 13 is existing technology, and its structure will not be described in detail here.

[0051] In this embodiment, when in use, the operator fixes the hook on the safety belt he wears to the fall arrestor 13. This allows the operator to flexibly adjust his body position when cleaning or repairing the pool 9, and further ensures the safety of the operator.

[0052] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fall arrest device for use in a secondary sedimentation tank, characterized in that The utility model relates to a two -sinking pool automatic feeding device, including frame, one end of frame rotatory connection has sliding wheel, the other end of frame is suspended and sets up, the sliding wheel includes first sliding wheel and second sliding wheel, first sliding wheel is located second sliding wheel top and is installed with annular guide rail of pool body of two -sinking pool, first sliding wheel and second sliding wheel are located the upper portion and lower portion of annular guide rail respectively and slide along annular guide rail.

2. The anti-falling device for two-sink operation according to claim 1, characterized in that, The first sliding wheel is provided with at least two, and the second sliding wheel is provided with at least one.

3. The anti-falling device for two-sink operation according to claim 2, characterized in that, The first sliding wheel is provided with two, and the second sliding wheel is provided with one.

4. The anti-falling device for two-sink operation according to claim 1, characterized in that, The first sliding wheel is provided with two, and the second sliding wheel is provided with one.

5. The anti-falling device for two-sink operation according to claim 4, characterized in that, The frame includes a support frame and a mounting frame, and the mounting frame is fixedly connected with the support frame.

6. The anti-falling device for two-sink operation according to claim 5, characterized in that, The support frame is inclined, and the mounting frame is fixedly connected with the lower part of the support frame.

7. The anti-falling device for two-sink operation according to claim 6, characterized in that, The support frame is a rectangular frame structure, and the mounting frame includes two side connecting frames.

8. A fall arrest device for use in a secondary sedimentation tank according to any one of claims 1 to 7, characterised in that, The frame is fixedly connected with a cross beam inside the frame.

9. The anti-falling device for two-sink operation according to claim 8, characterized in that, A vertical connecting rod is fixedly connected on the frame, and the lower part of the vertical connecting rod is rotatably connected with an auxiliary wheel.

10. The anti-falling device for two-sink operation according to claim 1, characterized in that, The auxiliary wheel is a rubber wheel made of rubber. Arc-shaped grooves are formed on the circumferences of the first sliding wheel and the second sliding wheel.

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