Safety maintenance platform

Abstract

The invention relates to the technical field of power station overhaul protection, in particular to a safety maintenance platform. The base mechanism comprises a unit bottom ring, a fixed guide vane and a stable bottom plate located on one side of the fixed guide vane. The supporting mechanism comprises a supporting sleeve arranged at the top of the stable bottom plate, a bearing rod arranged on the inner wall of the supporting sleeve in a threaded mode and a tripod column located above the bearing rod, and the passing mechanism comprises an extension rod fixed to one side of the stable bottom plate, a clamping assembly arranged on the inner wall of the extension rod and channel modules hung on the two sides of the extension rod. Compared with a traditional scaffold, the structure is simpler, more convenient and safer, the seat ring is ingeniously used for forming a supporting platform, materials for erecting the platform are reduced, a large number of steel pipe scaffolds are not needed, all parts are consistent, field blanking is not needed, the platform erecting and disassembling period is shortened, large manpower and material resources do not need to be input, and the construction cost is reduced. The movement state of the limiting end can play a self-checking role and clamp the channel module, and potential safety hazards are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of power station maintenance and protection, in particular to a safety maintenance platform. Background Art

[0002] During the maintenance of the power station unit, the guide vane end seal is severely worn and needs to be replaced. Since the guide vane end seal can only be removed when the guide vane is fully open, but when the guide vane is fully open, the staff cannot walk between the fixed guide vane and the movable guide vane. The traditional method is to set up scaffolding in the volute outside the fixed guide vane when the guide vane is fully open, lay bamboo plywood passages for personnel to pass, and set up safety nets to prevent personnel from falling from the edge. Since the scaffolding steel pipe is a straight pipe and the guide vanes are distributed in a circle, the safety risk of the scaffolding erection process is relatively large, and the volute itself is constructed as a circular pipe. There will be many inconveniences in erecting a straight pipe scaffolding in a circular pipe. The work intensity of the personnel is high, the material consumption is large, and the construction time is long. After the scaffolding is erected, the end of the scaffolding is exposed, which poses certain safety hazards.

[0003] Therefore, a safety maintenance platform is needed that is simpler, more convenient and safer than traditional scaffolding, does not require a large amount of manpower and material resources, reduces the materials required for erection and shortens the erection and dismantling period to meet the needs of the existing environment. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the invention of this application to avoid blurring the purpose of this section, the abstract of the specification and the title of the invention, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned prior art, there are many inconveniences in setting up conventional maintenance scaffolding in a circular pipe, such as high workload for personnel, high consumption of materials and materials, and long construction time. After the scaffolding is set up, the ends of the scaffolding are exposed, posing a safety hazard.

[0006] Therefore, the technical problem to be solved by the present invention is to design a safety maintenance platform which is simpler, more convenient and safer than traditional scaffolding, does not require a large amount of manpower and material resources, reduces the materials required for erection and shortens the erection and dismantling period to meet the needs of the existing environment.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a security maintenance platform, comprising:

[0008] A base mechanism, comprising a unit bottom ring, a fixed guide vane, and a stable bottom plate located on one side of the fixed guide vane;

[0009] The supporting mechanism comprises a supporting sleeve arranged on the top of the stable bottom plate, a receiving rod threadedly arranged on the inner wall of the supporting sleeve, and a tripod column located above the receiving rod;

[0010] And a passage mechanism, including an extension rod fixed on one side of the stable bottom plate, a clamping assembly arranged on the inner wall of the extension rod, and a passage module hung on both sides of the extension rod.

[0011] As an improvement of the present invention, a receiving groove is fixedly provided on the top of the stable base plate, the bottom of the supporting sleeve is connected to the receiving groove, through holes are provided on both sides of the inner wall of the receiving groove, unlocking platforms are provided on both sides of the receiving groove, a moving groove is provided below the unlocking platform, and the moving groove is connected to the receiving groove through the through holes.

[0012] As an improvement of the present invention, a limit bolt is slidably provided on the inner wall of the through hole, a piston block is fixed to the other end of the limit bolt, the piston block is fitted with the inner wall of the motion groove, a spring is fixed on one side of the piston block, and the other end of the spring is fixedly connected to the inner wall of the motion groove.

[0013] As an improvement of the present invention, a pneumatic tube is provided on the top of the unlocking platform, an adjusting pedal is slidably fitted on the inner wall of the pneumatic tube, the pneumatic tube is through-connected with the motion groove, and the unlocking platform and the motion groove are sealed.

[0014] As an improvement of the present invention, limiting grooves are provided on both sides of the support sleeve, a screw-on pipe is provided on the inner wall of the support sleeve, the screw-on pipe cooperates with the receiving rod, and an adjustment cavity is provided below the screw-on pipe.

[0015] As an improvement of the present invention, rebound rods are provided on both sides of the adjustment cavity, and the rebound rods are elastically connected to the inner wall of the adjustment cavity. A locking hole is opened at the bottom of the adjustment cavity and directly below the rebound rod, and the locking hole is through-connected with the limit groove.

[0016] As an improvement of the present invention, an air pressure channel is provided at the bottom of the stable base plate, an air pressure regulating plug is slidably provided in the air pressure channel, the top of the air pressure regulating plug is located in the accommodating groove, an insertion hole is provided at the bottom of the regulating cavity, the insertion hole accommodates the air pressure regulating plug, and the air pressure channel extends into the extension rod.

[0017] As an improvement of the present invention, a control groove is provided on the top of the extension rod, a pneumatic module is fixedly installed on the inner wall of the control groove, the pneumatic module and the pneumatic channel are through-connected, a transmission rod is provided on one side of the pneumatic module, and one end of the transmission rod is located inside the pneumatic module.

[0018] As an improvement of the present invention, a limiting end is extended from the top of the transmission rod, a fence hole is fixedly opened at the end of the extension rod, the limiting end is located in the fence hole, and a pushing end is provided at the other end of the limiting end.

[0019] As an improvement of the present invention, a clamping groove is provided on the inner wall of the control groove, the clamping assembly slides along the clamping groove, the pushing end is located between the clamping assemblies, hook grooves are provided on both sides of the extension rod, and the channel module is hung in the hook grooves.

[0020] The beneficial effects of the present invention are as follows: the structure is simpler, more convenient and safer than the traditional scaffolding, the seat ring is cleverly used to form a supporting platform, the material for platform erection is reduced, a large amount of steel pipe scaffolding is not required, the components are consistent, no on-site unloading is required, the platform erection and dismantling period is shortened, and there is no need to invest a large amount of manpower and material resources. The movement state of the limit end can play a self-inspection role and clamp the channel module to reduce safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 It is the overall plan layout diagram of the safety maintenance platform in the present invention.

[0023] Figure 2 It is a schematic diagram of the overall structure of the security maintenance platform in the present invention.

[0024] Figure 3 This is a schematic diagram of the structure of the safety maintenance platform in the present invention from another angle.

[0025] Figure 4 It is a planar cross-sectional view of the internal structure of the safety maintenance platform in the present invention.

[0026] Figure 5 It is a schematic diagram of the local structure of the safety maintenance platform in the present invention.

[0027] Figure 6 It is a partial schematic diagram of the passage mechanism of the safety maintenance platform in the present invention.

[0028] Figure 7 For the security maintenance platform in the present invention Figure 7 A schematic diagram of the enlarged structure of part A. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1

[0031] Reference Figures 1 to 5 , this embodiment provides a security maintenance platform.

[0032] The base mechanism 100 constitutes the basic body of the whole device. The whole platform is arranged on the unit bottom ring 101, and the fixed guide vane 102 can play a positioning and leaning role for the stable bottom plate 103, which is arranged on the surface of the unit bottom ring 101.

[0033] The support mechanism 200 plays a core supporting role. A support sleeve 201 is fixedly arranged on the top of the stable bottom plate 103. A threaded hole is opened inside the support sleeve 201. Through the cooperation of the threaded hole, a receiving rod 202 is spirally arranged on the top of the support sleeve 201. The receiving rod 202 can cooperate with the threaded hole and the outer wall of the receiving rod 202 is also spirally arranged with a tripod column 203. The tripod column 203 is used to dock the ceiling structure of the unit bottom ring 101. The tripod column 203 itself is also spirally connected to the receiving rod 202. When installing the entire platform, first lean the stable bottom plate 103 against the fixed guide vane 102 and position it, then spirally insert the receiving rod 202 into the support sleeve 201 and ensure that the receiving rod 202 moves to the maximum position. At this time, the rotating tripod column 203 gradually approaches the ceiling structure of the unit bottom ring 101 and finally contacts the ceiling of the unit bottom ring 101.

[0034] The outer wall of the receiving rod 202 itself is rotatably provided with a tightening anti-loosening nut to cooperate with the movement of the receiving rod 202 itself and the movement of the tripod column 203. After the receiving rod 202 and the tripod column 203 move to the maximum position, the nut is tightened for the second time to prevent loosening. On this basis, it can also be reinforced with construction site tools and equipment such as jacks. After the tripod column 203 is firmly set, it can not only play a supporting role, but also play a supporting and reinforcing role for the support sleeve 201 and the stable bottom plate 103 through the reaction force. The top of the stable bottom plate 103 is kept at a distance and a total of two support sleeves 201 are set, which corresponds to two groups of receiving rods 202 and tripod columns 203, and strengthens the foundation reinforcement performance of the entire platform.

[0035] The passage mechanism 300 is used to ensure manual passage. The extension rod 301 is extended and set on the side of the stable bottom plate 103 facing the outer ring of the unit bottom ring 101. Multiple groups of channel modules 303 are hung on both sides of the extension rod 301. The channel modules 303 can be installed to lay channel plates. A clamping assembly 302 is also set on the inner wall of the extension rod 301. After the support mechanism 200 is installed and set, the clamping assembly 302 can be opened to clamp and stabilize the channel modules 303 set on both sides of the extension rod 301, thereby enhancing the safety of the installation of the channel modules 303 and reducing hidden dangers. The outermost end of the extension rod 301 is provided with a socket for direct insertion and installation of the corresponding fence to ensure safety and provide handrail support. Safety nets and other settings can be added around the fence for reinforcement.

[0036] Example 2

[0037] Reference Figures 1 to 6 This embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

[0038] A receiving groove 103a is fixedly provided on the top of the stable bottom plate 103. The receiving groove 103a is used to accommodate and place the support sleeve 201. The bottom of the support sleeve 201 is inserted into the receiving groove 103a. On the top of the stable bottom plate 103, unlocking platforms 204 are respectively provided on both sides of the receiving groove 103a. A moving groove 204a is correspondingly provided below the unlocking platform 204. The unlocking platform 204 and the moving groove 204a are sealed. Through holes 103a-1 are fixedly provided on both sides of the inner wall of the receiving groove 103a. The moving groove 204a is connected to the receiving groove 103a through the through holes 103a-1. The through holes 103a-1 are located between the moving groove 204a and the receiving groove 103a.

[0039] The inner wall of the through hole 103a-1 is slidably provided with a limit bolt 205, and the other end of each limit bolt 205 is fixedly connected with a piston block 205a, and the diameter of the connection section between the limit bolt 205 and the piston block 205a is smaller than the diameter of the limit bolt 205 itself, and is thinner. The piston block 205a slides along the movement groove 204a and fits with the inner wall of the movement groove 204a and the bottom of the unlocking platform 204, so that the air pressure can be adjusted while moving. A spring 205a-1 is fixedly provided on one side of the piston block 205a, and the other end of the spring 205a-1 is fixedly connected with the inner wall of the movement groove 204a.

[0040] A pneumatic tube 204b is fixedly provided on the top of each unlocking platform 204, and an adjusting pedal 204b-1 is slidably attached to the inner wall of the pneumatic tube 204b. The pneumatic tube 204b itself is connected to the moving groove 204a. When the unlocking platform 204 and the moving groove 204a are sealed, the descent of the adjusting pedal 204b-1 can adjust the air pressure in the moving groove 204a, thereby driving the piston block 205a to slide horizontally in a direction away from the receiving groove 103a. The horizontal sliding of the piston block 205a drives the limit bolt 205 to follow the horizontal sliding. In the default state, the adjusting pedal 204b-1 is not controlled to descend, and the elastic coefficient of the spring 205a-1 is larger, which can drive the limit bolt 205 to pass through the through hole 103a-1 and be located in the receiving groove 103a.

[0041] After the stable base plate 103 is set, the support sleeve 201 needs to be inserted. The adjustment pedal 204b-1 is set to be a structure that is convenient for the staff to step on and operate. The staff only needs to step on the adjustment pedal 204b-1 with both feet to drive the limit bolt 205 to leave the receiving groove 103a and retract. Then, the support sleeve 201 is directly inserted without releasing the adjustment pedal 204b-1. This process is stable with foot stepping, and no additional manual operation is required, which is very convenient. After the support sleeve 201 is inserted, the staff gets off the adjustment pedal 204b-1. At this time, the air pressure control of the adjustment pedal 204b-1 is left, and the spring 205a-1 will drive the limit bolt 205 to move towards the original position as much as possible, but at this time, the limit bolt 205 can only resist the outer wall of the support sleeve 201 and cannot be reset.

[0042] Limiting grooves 201a are provided on both sides of the support sleeve 201 to correspond to the limiting bolt 205. When the support sleeve 201 is first inserted into the receiving groove 103a, the limiting groove 201a may not correspond to the limiting bolt 205. At this time, you only need to rotate the support sleeve 201 in place until the limiting groove 201a is aligned with the limiting bolt 205. At this time, the limiting bolt 205 will be quickly inserted into the limiting groove 201a under the action of the spring 205a-1 to lock the support sleeve 201.

[0043] The inner wall of the support sleeve 201 is fixedly provided with a screw-on pipe 201b, which can be threadedly matched with the receiving rod 202. Below the screw-on pipe 201b, the inner wall of the support sleeve 201 is provided with an adjustment cavity 201c, and rebound rods 201c-1 are provided on both sides of the inner wall of the adjustment cavity 201c. The rebound rod 201c-1 is elastically connected to the inner wall of the adjustment cavity 201c. The receiving rod 202 gradually rotates and descends along the screw-on pipe 201b, enters the adjustment cavity 201c and contacts the upper surface of the rebound rod 201c-1.

[0044] At the bottom of the adjusting cavity 201c, just below the rebound rod 201c-1, a locking hole 201c-2 is provided, and the locking hole 201c-2 itself is connected with the limiting groove 201a. When the receiving rod 202 finally descends to the maximum position along the rotating pipe 201b and is tightened, the rebound rod 201c-1 will also be pressed down by the receiving rod 202 to pass through the locking hole 201c-2. At this time, the support sleeve 201 has been locked by the limiting bolt 205, and the bottom of the rebound rod 201c-1 will enter the other side of the limiting bolt 205, blocking the movement path of the limiting bolt 205, to prevent the adjusting pedal 204b-1 from being pressed down, the limiting bolt 205 from moving, and the support sleeve 201 from loosening.

[0045] When the support sleeve 201 needs to be removed, the above process is repeated again, and the adjustment pedal 204 b - 1 is stepped on to release the locking of the support sleeve 201 by the limit bolt 205 .

[0046] Example 3

[0047] Reference Figures 1 to 7 This embodiment is based on the previous embodiment, and is different from the previous embodiment in that:

[0048] An air pressure channel 304 is fixedly provided at the bottom of the stable base plate 103, and an air pressure regulating plug 304a is slidably provided in the air pressure channel 304. The top of the air pressure regulating plug 304a is located in the accommodating groove 103a. By controlling the top of the air pressure regulating plug 304a, the air pressure regulating plug 304a can be driven to descend, thereby outputting pressure through one side of the air pressure channel 304.

[0049] The bottom center of the regulating cavity 201c is provided with a plug-in hole 201d. When the support sleeve 201 begins to be inserted into the receiving groove 103a, the top of the air pressure regulating plug 304a is connected to the plug-in hole 201d. When the receiving rod 202 finally descends to the maximum position along the screw-on pipe 201b and is tightened, the air pressure regulating plug 304a is also pressed down by the receiving rod 202, and the pressure is output through one side of the air pressure channel 304. One side of the air pressure channel 304 extends into the extension rod 301 on the side of the stable bottom plate 103 facing the outer ring of the unit bottom ring 101.

[0050] A control slot 301a is fixedly provided at the top of the extension rod 301, and a pneumatic module 301a-1 is fixedly provided below the inner wall of the control slot 301a. The pneumatic channel 304 passes through the extension rod 301 and enters the control slot 301a. The end is fixedly connected to the pneumatic module 301a-1. A transmission rod 301b is provided on one side above the pneumatic module 301a-1, and the other end of the transmission rod 301b is located inside the pneumatic module 301a-1. The transmission rod 301b is subjected to the action of the pneumatic pressure regulating plug 304a and the pneumatic channel 304 to move horizontally.

[0051] The end of the extension rod 301 is fixed with a fence hole 301c, which is used to insert the corresponding guardrail for additional protection. A limit terminal 301b-1 is extended from the top of the transmission rod 301b. The limit terminal 301b-1 extends into the fence hole 301c in the default state. In this state, it means that the air pressure channel 304 does not act on the transmission rod 301b, the support sleeve 201 and the receiving rod 202 are not rotated and tightened, and the air pressure regulating plug 304a does not output the corresponding pressure. The staff can use this situation to conduct a preliminary self-inspection to determine whether the support sleeve 201 and the receiving rod 202 are properly installed, because only when the installation is qualified, the limit terminal 301b-1 will move horizontally with the transmission rod 301b to leave space for the fence hole 301c.

[0052] The other end of the limit end 301b-1 is fixedly provided with a push end 301b-2. When the installation is qualified, the horizontal movement of the transmission rod 301b can drive the limit end 301b-1 and the push end 301b-2 to move horizontally together; the inner wall of the control groove 301a is also provided with a clamping groove 301d, and the clamping assembly 302 is arranged along the clamping groove 301d. When the push end 301b-2 moves horizontally, the clamping assembly 302 can be pushed to open through the inclined surface of the clamping assembly 302. The left and right halves of the clamping assembly 302 are elastically connected and have the ability to reset. When the support sleeve 201 and the receiving rod 202 are screwed and tightened, and the installation is qualified, while leaving space for the fence hole 301c, the clamping assembly 302 can also be pushed to open horizontally.

[0053] Hooking grooves 301e are provided on both sides of the extension rod 301, and the channel module 303 is hung in the hooking grooves 301e. The clamping assembly 302 is opened horizontally and can cooperate with the control groove 301a to provide additional clamping and fixing effect on the channel module 303, ensuring that the channel module 303 is installed firmly and safely.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A security maintenance platform, characterized in that: include, A base mechanism (100) comprises a unit bottom ring (101), a fixed guide vane (102), and a stable bottom plate (103) located on one side of the fixed guide vane (102); The support mechanism (200) comprises a support sleeve (201) arranged on the top of the stable bottom plate (103), a receiving rod (202) threadedly arranged on the inner wall of the support sleeve (201), and a tripod column (203) located above the receiving rod (202); And a passage mechanism (300), comprising an extension rod (301) fixed to one side of the stable base plate (103), a clamping assembly (302) arranged on the inner wall of the extension rod (301), and a passage module (303) hung on both sides of the extension rod (301).

2. The security maintenance platform according to claim 1, characterized in that: The top of the stable bottom plate (103) is fixedly provided with a receiving groove (103a), the bottom of the supporting sleeve (201) is connected to the receiving groove (103a), through holes (103a-1) are provided on both sides of the inner wall of the receiving groove (103a), unlocking platforms (204) are provided on both sides of the receiving groove (103a), a moving groove (204a) is provided below the unlocking platform (204), and the moving groove (204a) is connected to the receiving groove (103a) through the through holes (103a-1).

3. The security maintenance platform according to claim 2, characterized in that: A limit bolt (205) is slidably arranged on the inner wall of the through hole (103a-1), a piston block (205a) is fixed to the other end of the limit bolt (205), the piston block (205a) is in contact with the inner wall of the moving groove (204a), a spring (205a-1) is fixedly arranged on one side of the piston block (205a), and the other end of the spring (205a-1) is fixedly connected to the inner wall of the moving groove (204a).

4. The security maintenance platform according to claim 3, characterized in that: A pneumatic tube (204b) is provided on the top of the unlocking platform (204), an adjusting pedal (204b-1) is slidably fitted on the inner wall of the pneumatic tube (204b), the pneumatic tube (204b) is connected through the moving groove (204a), and the unlocking platform (204) and the moving groove (204a) are sealed.

5. The safety maintenance platform according to any one of claims 1 to 4, characterized in that: Limiting grooves (201a) are provided on both sides of the support sleeve (201), a rotary connection pipe (201b) is provided on the inner wall of the support sleeve (201), the rotary connection pipe (201b) cooperates with the receiving rod (202), and an adjustment cavity (201c) is provided below the rotary connection pipe (201b).

6. The security maintenance platform according to claim 5, characterized in that: Rebound rods (201c-1) are arranged on both sides of the adjustment cavity (201c), and the rebound rods (201c-1) are elastically connected to the inner wall of the adjustment cavity (201c). A locking hole (201c-2) is provided at the bottom of the adjustment cavity (201c) and directly below the rebound rods (201c-1), and the locking hole (201c-2) is connected to the limiting groove (201a).

7. The security maintenance platform according to claim 2, characterized in that: An air pressure channel (304) is provided at the bottom of the stable base plate (103), an air pressure regulating plug (304a) is slidably provided in the air pressure channel (304), the top of the air pressure regulating plug (304a) is located in the receiving groove (103a), and an insertion hole (201d) is provided at the bottom of the regulating cavity (201c), the insertion hole (201d) accommodates the air pressure regulating plug (304a), and the air pressure channel (304) extends into the extension rod (301).

8. The security maintenance platform according to claim 6, characterized in that: A control groove (301a) is provided at the top of the extension rod (301), a pneumatic module (301a-1) is fixedly provided on the inner wall of the control groove (301a), the pneumatic module (301a-1) and the pneumatic channel (304) are connected in a through manner, a transmission rod (301b) is provided on one side of the pneumatic module (301a-1), and one end of the transmission rod (301b) is located in the pneumatic module (301a-1).

9. The security maintenance platform according to claim 8, characterized in that: A limiting end (301b-1) is extended from the top of the transmission rod (301b), a fence hole (301c) is fixedly opened at the end of the extension rod (301), the limiting end (301b-1) is located in the fence hole (301c), and a pushing end (301b-2) is arranged at the other end of the limiting end (301b-1).

10. The security maintenance platform according to claim 9, characterized in that: The inner wall of the control groove (301a) is provided with a clamping groove (301d), the clamping assembly (302) slides along the clamping groove (301d), the pushing end (301b-2) is located between the clamping assemblies (302), and hook grooves (301e) are provided on both sides of the extension rod (301), and the channel module (303) is hung in the hook grooves (301e).

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