Movable maintenance platform for working well

Abstract

A movable maintenance platform for a working well comprises a movable platform, a plurality of first rotating mechanisms and a fixed platform. The movable platform comprises a movable bottom plate, a straight channel platform, a maintenance protection cage, a plurality of groups of second rotating mechanisms and a locking mechanism; the straight channel platform is fixedly connected with the first end of the movable bottom plate; the second rotating mechanisms are arranged on the first side of the straight channel platform at intervals and connected with the overhaul protection cage so that the overhaul protection cage can be rotationally switched between the using position and the folding position relative to the straight channel platform. The locking mechanism is used for locking the maintenance protection cage in a using position and a folding position respectively; the multiple sets of first rotating mechanisms are arranged on the fixed platform at intervals and connected with the second end of the movable bottom plate so that the movable bottom plate can be rotationally switched between the horizontal position and the vertical position relative to the fixed platform, and the second end of the movable bottom plate and the first end of the movable bottom plate are opposite ends. Maintenance personnel can enter a maintenance position through the platform to carry out maintenance operation on the valve, and use is flexible.

Description

Technical Field

[0001] This invention relates to a maintenance platform installed inside a working well. Background Technology

[0002] In water conservancy projects and other applications, working wells contain numerous water pipelines with valves installed on them. To facilitate maintenance personnel's inspection and repair of these valves, a maintenance platform needs to be constructed above the pipelines for personnel to walk on, allowing them to reach the corresponding valves for inspection and repair. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a working well mobile maintenance platform, which allows maintenance personnel to enter the valve maintenance position in the working well to perform valve maintenance operations. It is flexible in use and can be retracted when not in use, so as not to affect the disassembly and replacement of pipelines in the working well.

[0004] An embodiment of the present invention provides a movable maintenance platform for a working well, comprising a movable platform, multiple sets of first rotating mechanisms, and a fixed platform. The movable platform includes a movable base plate, a straight passage platform, a maintenance cage, multiple sets of second rotating mechanisms, and a locking mechanism. The straight passage platform is fixedly connected to the first end of the movable base plate. The multiple sets of second rotating mechanisms are spaced apart on the first side of the straight passage platform and connected to the maintenance cage, enabling the maintenance cage to rotate and switch between a used position and a retracted position relative to the straight passage platform. The locking mechanism is used to lock the maintenance cage in the used position and the retracted position respectively. The multiple sets of first rotating mechanisms are spaced apart on the fixed platform and connected to the second end of the movable base plate, enabling the movable base plate to rotate and switch between a flat position and an upright position relative to the fixed platform. The second end of the movable base plate is opposite to the first end of the movable base plate.

[0005] This invention has the following advantages and features:

[0006] 1. When valves on the pipeline need to be inspected, the movable platform and maintenance cage of this embodiment are lowered, the movable base plate is in a flat position, and the maintenance cage is in the use position, forming a path to the valve inspection position. This allows maintenance personnel to enter the maintenance cage through the straight-through platform and then inspect the pipeline valves adjacent to the maintenance cage. When a major overhaul is required, the maintenance cage is first rotated from the use position to the retracted position to avoid interference between the maintenance cage and the valve when the movable base plate is subsequently retracted, which would prevent the movable base plate from being retracted. Then, the movable base plate is rotated from the flat position to the upright position, so as not to affect the disassembly and replacement of the water pipeline in the working well.

[0007] 2. The movable base plate and maintenance cage of this invention utilize the principle of counterweight balance, and can be quickly raised and lowered manually. The overall structure of the movable maintenance platform of the working well is simple and compact. Attached Figure Description

[0008] Figure 1 The diagram shows a top view of the movable maintenance platform for the working well according to an embodiment of the present invention, wherein the movable base plate is in a flat position and the maintenance cage is in the use position.

[0009] Figure 2 The diagram shows a top view of a single movable platform and a single fixed platform according to an embodiment of the present invention, wherein the movable base plate is in a flat position and the maintenance cage is in the use position.

[0010] Figure 3 The diagram shows the usage status of the working well mobile maintenance platform according to an embodiment of the present invention, wherein the mobile base plate is in a flat position and the maintenance cage is in the usage position.

[0011] Figure 4 It shows Figure 3 The diagram shows a cross-sectional view (AA), in which the movable base plate is in a flat position and the maintenance cage is in the usage position.

[0012] Figure 5 It shows Figure 3 The AA cross-sectional view shows the movable base plate in the upright position and the maintenance cage in the retracted position.

[0013] Figure 6 It shows Figure 3 BB cross-sectional diagram.

[0014] Figure 7 The diagram shows a straight-channel platform, maintenance cage, second rotating mechanism, and locking mechanism according to an embodiment of the present invention, wherein the maintenance cage is in a state of rotating and switching between the use position and the retracted position.

[0015] Figure 8 A schematic diagram of the straight-channel platform, maintenance cage, second rotating mechanism, and locking mechanism according to an embodiment of the present invention is shown, wherein the maintenance cage is in the use position.

[0016] Figure 9 A schematic diagram of the straight-channel platform, maintenance cage, second rotating mechanism, and locking mechanism of an embodiment of the present invention is shown, wherein the maintenance cage is in the retracted position.

[0017] Figure 10 A schematic diagram of a pin holder according to an embodiment of the present invention is shown. Detailed Implementation

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Please refer to Figures 1 to 6 According to an embodiment of the present invention, the working well mobile maintenance platform is disposed above the pipe 91 inside the working well, and the pipe 91 is provided with a valve 92.

[0020] The working well's mobile maintenance platform includes a mobile platform 1, multiple sets of first rotating mechanisms 2, and a fixed platform 3. Figure 1 In the example, the working well mobile maintenance platform includes two sets of mobile platforms 1 and two sets of fixed platforms 3. Each set of mobile platforms 1 is rotatably connected to the fixed platform 3 through two sets of first rotating mechanisms 2, but is not limited to this. The number of mobile platforms 1 and fixed platforms 3 can be determined according to actual needs. In other embodiments, the working well mobile maintenance platform may also be provided with one set of mobile platforms 1 and one set of fixed platforms 3, or more sets of mobile platforms 1 and fixed platforms 3.

[0021] The movable platform 1 includes a movable base plate 11, a straight-through platform 12, a maintenance cage 13, multiple sets of second rotating mechanisms 14, and a locking mechanism 15. In the example shown in the figure, the movable platform 1 includes two straight-through platforms 12 and two maintenance cages 13, but it is not limited to this. The number of straight-through platforms 12 and maintenance cages 13 can be determined according to actual needs. In other embodiments, the working well movable maintenance platform may also be equipped with only one straight-through platform 12 and one maintenance cage 13, or more straight-through platforms 12 and more maintenance cages 13.

[0022] The straight-channel platform 12 is fixedly connected to the first end of the movable base plate 11. The straight-channel platform 12 avoids interference from pipes and valves, serving as the main channel to the valves under maintenance. In this embodiment, the straight-channel platform 12 is vertically connected to the movable base plate 11; optionally, the two are connected as one unit.

[0023] Multiple sets of second rotating mechanisms 14 are spaced apart on the first side of the straight passage platform 12 and connected to the maintenance cage 13, allowing the maintenance cage 13 to rotate and switch between the use position and the retracted position relative to the straight passage platform 12. The number of second rotating mechanisms 14 is related to the width of the maintenance cage 13, but is not less than two sets. In this embodiment, the maintenance cage 13 is in the use position when laid flat. When the maintenance cage 13 is in the use position, maintenance personnel can enter the maintenance cage 13 through the straight passage platform 12 to perform maintenance work on the valves 92 at the front and rear of the maintenance cage 13. The maintenance cage 13 reaches the retracted position after rotating 90° upward from the flat position. Each second rotating mechanism 14 includes a second gear frame 140, a second upper gear shaft (not shown in the figure), a second lower gear shaft (not shown in the figure), a second upper gear 143, a second lower gear 144, a second upper connecting arm 145, and a second lower connecting arm 146. The second gear carrier 140 is connected to the first side of the straight channel platform 12. The second upper gear shaft and the second lower gear shaft are respectively disposed on the second gear carrier 140. The second upper gear 143 is sleeved on the second upper gear shaft and connected to one end of the second upper connecting arm 145. The other end of the second upper connecting arm 145 is provided with a second counterweight 147. The second lower gear 144 meshes with the first upper gear 143. The second lower gear 144 is sleeved on the second lower gear shaft and connected to one end of the second lower connecting arm 146. The other end of the second lower connecting arm 146 is connected to the maintenance cage 13.

[0024] The locking mechanism 15 is used to lock the maintenance cage 13 in both the active and retracted positions. Please refer to [reference needed]. Figures 7 to 9 The locking mechanism 15 includes a pin holder 151, a pin 152, and a locking element 153. The pin holder 151 is connected to the second counterweight 147, and the pin 152 is movably mounted on the pin holder 151. The sum of the gravitational moments of the second counterweight 147, the pin holder 151, and the pin 152 on the second upper connecting arm 145 is balanced with the gravitational moment of the maintenance cage 13 on the second lower connecting arm 146. The locking element 153 is connected to the second gear frame 140. The locking element 153 has a first pin hole 1531 and a second pin hole 1532 that cooperate with the pin 152. When the pin is inserted into the first pin hole 1531, the maintenance cage 13 is locked in the use position; when the pin 152 is inserted into the second pin hole 1532, the maintenance cage 13 is locked in the retracted position.

[0025] In this embodiment, the locking member 153 is L-shaped, including a horizontal side 153a and a vertical side 153b, with a first pin hole 1531 and a second pin hole 1532 respectively disposed on the horizontal side 153a and the vertical side 153b. Optionally, the locking member 153 is an angle steel.

[0026] Please refer to Figure 10Furthermore, the pin 152 includes a vertically extending pin body 152a and a pin handle 152b vertically connected to the top of the pin body. The pin holder 151 has a first inverted L-shaped notch 1511 and a second inverted L-shaped notch 1512 that mate with the pin handle 152b, the second inverted L-shaped notch 1512 being located directly below the first inverted L-shaped notch 1511. Each inverted L-shaped notch includes a horizontal notch 1513 and a vertical notch 1514, one end of the horizontal notch 1513 opening onto the side of the pin holder 151, and the other end of the horizontal notch 1513 being connected to the top of the vertical notch 1514. When the pin 152 is not inserted into the first pin hole 1531 and the second pin hole 1532 (at this time, the maintenance cage 13 is in a state of rotation switching between the use position and the retracted position), the pin handle 152b is embedded in the vertical notch 1514 of the first inverted L-shaped notch 1511; when the pin 152 is inserted into the first pin hole 1531 and the second pin hole 1532 (at this time, the maintenance cage 13 is in the use position and the retracted position), the pin handle 152b is embedded in the vertical notch 1514 of the second inverted L-shaped notch 1512.

[0027] Multiple sets of first rotating mechanisms 2 are spaced apart on the fixed platform 3 and connected to the second end of the movable base plate 11, so that the movable base plate 11 can rotate and switch between a flat position and an upright position relative to the fixed platform 3. The second end of the movable base plate 11 is opposite to the first end of the movable base plate 11. The number of first rotating mechanisms 2 is related to the width of the movable base plate 11, but is not less than two sets.

[0028] Each first rotating mechanism 2 includes a first gear frame 20, a first upper gear shaft 21, a first lower gear shaft 22, a first upper gear 23, a first lower gear 24, a first upper connecting arm 25, and a first lower connecting arm 26. The first gear frame 20 is connected to the fixed platform 3. The first upper gear shaft 21 and the first lower gear shaft 22 are respectively disposed on the first gear frame 20. The first upper gear 23 is sleeved on the first upper gear shaft 21 and connected to one end of the first upper connecting arm 25. The other end of the first upper connecting arm 25 is connected to the second end of the movable base plate 11. The first lower gear 24 meshes with the first upper gear 23. The first lower gear 24 is sleeved on the first lower gear shaft 22 and connected to one end of the first lower connecting arm 26. The other end of the first lower connecting arm 26 is provided with a first counterweight 27.

[0029] The fixed platform 3 includes a fixed platform base plate 31, a concrete block 32, and an inclined ladder 33. The fixed platform base plate 31 is fixedly mounted on the concrete block 32, and the upper end of the inclined ladder 33 is connected to the fixed platform base plate 31, allowing maintenance personnel to access the fixed platform base plate 31 via the inclined ladder 33. In this embodiment, the first gear frame 20 is fixed to the fixed platform base plate 31, avoiding the concrete block 32, to facilitate the placement of the first counterweight 27.

[0030] Furthermore, the activity platform in this embodiment of the invention also includes a stepped maintenance platform 16, which is connected to the second side of the straight channel platform 12. The second side of the straight channel platform 12 is opposite to the first side of the straight channel platform 12. Steps 161 are provided on the bottom surface of the stepped maintenance platform 16 to facilitate maintenance personnel to operate maintenance valves on this platform.

[0031] Preferably, safety railings are provided around the fixed platform base plate 31, the movable base plate 11, the straight passage platform 12, the maintenance cage 13, and the stepped maintenance platform 16 for the safety protection of personnel passage.

[0032] In this embodiment of the invention, the mobile platform 1 is set above the water supply pipeline of the working well and avoids the interference positions between the valves and the pipeline. Personnel can enter the maintenance valve position above the pipeline through the mobile platform (i.e., enter the maintenance cage 13 in the use position or enter the stepped maintenance platform 16) to carry out routine valve maintenance operations.

[0033] The main reason for setting up the movable platform is to facilitate major repairs on the water pipelines inside the working well. This requires disassembling and replacing the pipelines, and the movable platform occupies little space and will not affect the operation of maintenance personnel or the hoisting of the pipelines.

[0034] The purpose of providing a retractable maintenance cage 13 is to prevent interference between the maintenance cage and surrounding valves when the movable base plate 11 is raised (the straight-channel platform 12 and the maintenance cage 13 will rotate 90° upwards from the horizontal position to the vertical position along with the movable base plate 11), thus preventing the entire movable platform from rotating to the vertical position. In some valve maintenance locations, when the movable platform is opened (i.e., raised upwards), the rotation radius of the maintenance cage is within the range of the valve being maintained, which may cause interference with surrounding valves, preventing the entire movable platform from opening.

[0035] After releasing the locking mechanism 15, press down on the second counterweight 147 on the second upper connecting arm 145. The maintenance cage 13 on the second lower connecting arm 146 rotates upward 90° under the drive of the gears to a position above the straight channel platform 12. At this time, the maintenance cage 13 has avoided the valve. Then, lock the maintenance cage 13 as a whole using the pin 152. Subsequently, rotate the movable base plate from the flat position to the vertical position. At this time, the entire movable platform area is opened up, which does not affect the disassembly and hoisting of the pipe 91 and valve 92, facilitating major repairs.

[0036] The embodiments of the present invention utilize the principle of counterweight balance, which allows the movable base plate and maintenance cage to be quickly and smoothly erected or lowered with minimal human effort, making operation convenient.

Claims

1. A working well mobile maintenance platform, characterized in that, The working well mobile maintenance platform includes a mobile platform, multiple sets of first rotating mechanisms, and a fixed platform; The movable platform includes a movable base plate, a straight channel platform, a maintenance cage, multiple sets of second rotating mechanisms, and a locking mechanism; the straight channel platform is fixedly connected to the first end of the movable base plate; the multiple sets of second rotating mechanisms are spaced apart on the first side of the straight channel platform and connected to the maintenance cage, so that the maintenance cage can rotate and switch between the use position and the retracted position relative to the straight channel platform. The locking mechanism is used to lock the maintenance cage in the usage position and the retracted position respectively; The multiple sets of first rotating mechanisms are spaced apart on the fixed platform and connected to the second end of the movable base plate, so that the movable base plate can rotate and switch between a flat position and an upright position relative to the fixed platform. The second end of the movable base plate is opposite to the first end of the movable base plate.

2. The working well mobile maintenance platform as described in claim 1, characterized in that, Each of the first rotating mechanisms includes a first gear frame, a first upper gear shaft, a first lower gear shaft, a first upper gear, a first lower gear, a first upper connecting arm, and a first lower connecting arm. The first gear frame is connected to the fixed platform. The first upper gear shaft and the first lower gear shaft are respectively disposed on the first gear frame. The first upper gear is sleeved on the first upper gear shaft and connected to one end of the first upper connecting arm. The other end of the first upper connecting arm is connected to the second end of the movable base plate. The first lower gear meshes with the first upper gear. The first lower gear is sleeved on the first lower gear shaft and connected to one end of the first lower connecting arm. The other end of the first lower connecting arm is provided with a first counterweight.

3. The working well mobile maintenance platform as described in claim 1, characterized in that, The fixed platform includes a fixed platform base plate and a cement block, with the fixed platform base plate fixedly mounted on the cement block.

4. The working well mobile maintenance platform as described in claim 1, characterized in that, Each of the second rotating mechanisms includes a second gear frame, a second upper gear shaft, a second lower gear shaft, a second upper gear, a second lower gear, a second upper connecting arm, and a second lower connecting arm. The second gear frame is connected to the first side of the straight channel platform. The second upper gear shaft and the second lower gear shaft are respectively disposed on the second gear frame. The second upper gear is sleeved on the second upper gear shaft and connected to one end of the second upper connecting arm. The other end of the second upper connecting arm is provided with a second counterweight. The second lower gear meshes with the first upper gear. The second lower gear is sleeved on the second lower gear shaft and connected to one end of the second lower connecting arm. The other end of the second lower connecting arm is connected to the maintenance cage.

5. The working well mobile maintenance platform as described in claim 4, characterized in that, The locking mechanism includes a pin holder, a pin, and a locking element; The pin holder is connected to the second counterweight, and the pin is movable up and down on the pin holder; the locking member is connected to the second gear holder, and the locking member has a first pin hole and a second pin hole that cooperate with the pin. When the pin is inserted into the first pin hole, the maintenance cage is locked in the use position, and when the pin is inserted into the second pin hole, the maintenance cage is locked in the retracted position.

6. The working well mobile maintenance platform as described in claim 5, characterized in that, The locking member is L-shaped, including a horizontal side and a vertical side, and the first pin hole and the second pin hole are respectively provided on the horizontal side and the vertical side.

7. The working well mobile maintenance platform as described in claim 5, characterized in that, The pin includes a vertically extending pin body and a pin handle vertically connected to the top of the pin body. The pin holder has a first inverted L-shaped notch and a second inverted L-shaped notch that mate with the pin handle. The second inverted L-shaped notch is located directly below the first inverted L-shaped notch. Each inverted L-shaped notch includes a horizontal notch and a vertical notch. One end of the horizontal notch opens onto the side of the pin holder, and the other end of the horizontal notch is connected to the top of the vertical notch. When the pin is not inserted into the first pin hole and the second pin hole, the pin handle is embedded in the vertical notch of the first inverted L-shaped notch; when the pin is inserted into the first pin hole and the second pin hole, the pin handle is embedded in the vertical notch of the second inverted L-shaped notch.

8. The working well mobile maintenance platform as described in claim 1, characterized in that, The activity platform includes a stepped maintenance platform, which is connected to the second side of the straight channel platform. The second side of the straight channel platform is opposite to the first side of the straight channel platform, and steps are provided on the bottom surface of the stepped maintenance platform.

9. The working well mobile maintenance platform as described in claim 1, characterized in that, The straight-channel platform is vertically connected to the movable base plate.

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