Self-adaptive telescopic annular operation platform for repairing outer wall of variable-cross-section chimney

Abstract

The invention discloses a self-adaptive telescopic annular operation platform for repairing the outer wall of a variable-cross-section chimney, and relates to the technical field of high-altitude operation equipment, the self-adaptive telescopic annular operation platform comprises a plurality of fixed platforms, and the fixed platforms are internally and movably sleeved with movable platforms; every two adjacent fixed platforms are movably connected through a movable platform. According to the self-adaptive telescopic annular operation platform for repairing the outer wall of the variable-cross-section chimney, the fixed platform, the movable platform, the telescopic assembly and the fixed guardrail are matched, telescopic movement of the movable platform is achieved through the arrangement of the telescopic assembly, and a connection mode that a gear in the telescopic assembly is meshed with a rack insection is adopted; the movable platform contracted in the fixed platform can extend, and the extended movable platform can be retracted into the fixed platform, so that the inner diameter of the annular operation platform can be expanded or retracted according to the diameter value of the chimney, and the practicability of the annular operation platform is improved.

Description

Technical Field

[0001] The invention relates to the technical field of aerial work equipment, in particular to an adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney. Background Art

[0002] Chimneys are usually relatively tall buildings. In order to ensure the normal use of chimneys, the outer walls of chimneys need to be repaired from time to time. The repair of the outer walls of chimneys requires high-altitude operations, so safety and stability are the key.

[0003] The circular operating platform facilitates workers to operate at different heights Summary of the Invention The present invention provides an adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney, which solves the problems raised by the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney, comprising a fixed platform, a movable platform movably sleeved inside the fixed platform, a plurality of fixed platforms are provided, and two adjacent fixed platforms are movably connected via a movable platform, a telescopic component is installed inside the movable platform, a rotating shaft is fixedly sleeved on the inner wall of the telescopic component, a rotating motor located below the fixed platform is fixedly installed on the lower end of the rotating shaft, sleeve rods are fixedly installed on both ends of the front and rear sides of the upper end face of the fixed platform, a lifting rod is movably sleeved on the inner wall of the sleeve rod, the lifting rod is movably sleeved on the sleeve rod through a connecting assembly, a fixed guardrail is fixedly installed on the upper end of the lifting rod, a movable guardrail is movably sleeved on the inner wall of the fixed guardrail, and the movable guardrail is movably sleeved on the fixed guardrail through a positioning assembly.

[0005] Optionally, a cavity for the movable platform to move is opened inside the fixed platform, a chassis is fixedly installed on the lower end of the fixed platform, and the inner wall of the chassis is fixedly sleeved with the outer wall of the rotating motor, an inner side plate is fixedly installed on the inner side of the upper end surface of the fixed platform, and an outer side plate is fixedly connected to the outer side of the upper end surface of the fixed platform; A chimney body is provided on the inner side of the fixed platform, and a maintenance platform is fixedly installed on the upper end of the chimney body, and an outer winch is evenly distributed on the outer side of the lower end surface of the maintenance platform, and the outer winch is connected to the outer plate by a wire rope, and an inner winch is evenly distributed on the inner side of the lower end surface of the maintenance platform, and the inner winch is connected to the inner plate by a wire rope, and the inner winch and the outer winch are staggeredly installed on the bottom of the maintenance platform, and slide rails are evenly distributed on the outer wall of the chimney body, and rollers are connected to the outer side of the slide rails in a rolling manner, and a telescopic rod is fixedly installed on the end of the roller away from the slide rail, and a fifth spring is movably sleeved on the outer wall of the telescopic rod, and the inner end of the fifth spring is connected to the roller, and the outer ends of the fifth spring and the telescopic rod are both fixedly connected to the inner side of the inner plate.

[0006] Optionally, sleeve rods are respectively installed on the left and right ends of the upper end surfaces of the inner and outer panels, and vertical poles are fixedly installed between two adjacent sleeve rods. A support assembly is provided on the inner wall of the vertical pole, and the upper end of the support assembly is fixedly connected to the lower end of the fixed guardrail.

[0007] Optionally, a cylindrical groove is provided inside the sleeve rod, and the inner wall of the cylindrical groove is movably connected to the outer wall of the lifting rod, and through holes for connecting the connecting components are evenly provided on one side of the sleeve rod.

[0008] Optionally, the connecting assembly includes a fourth spring and a connecting block, the inner end of the fourth spring is fixedly connected to the inner wall of the lifting rod, the outer end of the connecting block is fixedly connected to the connecting block, and the outer wall of the connecting block is movably connected to the inner wall of the through hole.

[0009] Optionally, the telescopic assembly includes a gear and a rack, the inner wall of the gear is fixedly sleeved with the outer wall of the rotating shaft, the gear is meshed with the teeth on one side of the rack, and the other side of the rack is fixedly connected to the inner wall of the movable platform.

[0010] Optionally, a cavity is provided inside the fixed guardrail, and the inner wall of the cavity is movably connected to the outer wall of the movable guardrail. An external socket for connecting a positioning component is provided through one end of the upper end surface of the fixed guardrail.

[0011] Optionally, inner plug holes are evenly distributed throughout the movable guardrail, and the inner plug holes are connected to the outer plug holes via a positioning assembly.

[0012] Optionally, the positioning assembly includes a positioning rod, a disc and a second spring, the upper end of the positioning rod is fixedly connected to the lower end of the disc, the second spring is movably connected to the outer wall of the positioning rod, the lower end of the second spring is fixedly connected to the fixed guardrail, the upper end of the second spring is fixedly connected to the disc, and the positioning rod passes through the interior of the inner hole from the top of the outer hole and then out from the bottom of the outer hole.

[0013] Optionally, the support assembly includes a third spring and a support rod, the lower end of the third spring is fixedly connected to the bottom surface of the inner wall of the vertical pole, the upper end of the third spring is fixedly connected to the lower end of the support rod, and the upper end of the support rod is fixedly connected to the lower end of the fixed guardrail.

[0014] The present invention has the following beneficial effects: 1. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney realizes the telescopic movement of the movable platform through the coordination between the fixed platform, the movable platform, the telescopic assembly and the fixed guardrail, and utilizes the setting of the telescopic assembly. The connection method of the gear and rack teeth in the telescopic assembly is adopted, which not only allows the movable platform retracted in the fixed platform to be extended, but also allows the extended movable platform to be retracted into the interior of the fixed platform, so that the inner diameter of the annular operating platform can be expanded or retracted according to the diameter value of the chimney, thereby improving the practicality of the annular operating platform.

[0015] 2. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney realizes the connection between the fixed guardrail and the sleeve rod through the coordination between the fixed guardrail, lifting rod, sleeve rod and connecting assembly, and utilizes the setting of the connecting assembly. By changing the connection method between the connecting assembly and the sleeve rod, the telescopic length of the lifting rod can be adjusted according to the actual needs of the staff, achieving the effect of adjustable height of the fixed guardrail, thereby increasing the protective effect of the fixed guardrail on the staff.

[0016] 3. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney realizes the connection between the fixed guardrail and the movable guardrail through the coordination among the fixed guardrail, the movable guardrail, the limit assembly and the movable platform, and utilizes the setting of the limit assembly. By changing the connection method between the limit assembly and the movable guardrail, the movable guardrail can be telescopically moved at the fixed guardrail. The telescopic length of the movable guardrail is matched according to the telescopic length of the movable platform, thereby increasing the protective measures of the movable guardrail for the workers during the use of the movable platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a bottom view of the rotating motor in the structure of the present invention; Figure 3 This is a top view of the fully unfolded movable platform in the structure of the present invention; Figure 4 A bottom view of the telescopic assembly in the structure of the present invention; Figure 5 A side view of the movable guardrail in the structure of the present invention; Figure 6 is a cross-sectional view of a support assembly in the structure of the present invention; Figure 7 A side view of a positioning assembly in the structure of the present invention; Figure 8 In the structure of the present invention Figure 6 A magnified view of point A; Figure 9 In the structure of the present invention Figure 6 An enlarged view of point B; Figure 10 A top view of the semi-expanded movable platform in the structure of the present invention; Figure 11 A top view of the movable platform in the structure of the present invention when fully retracted; Figure 12 This is a front view of the hoisting and lifting of the structure of the present invention; Figure 13 A top view of the slide rail in the structure of the present invention; Figure 14 It is a side view of the external winch in the structure of the present invention.

[0018] Description of reference numerals: 1. Fixed platform; 2. Movable platform; 3. Telescopic assembly; 301. Gear; 302. Rack; 4. Rotating shaft; 5. Rotating motor; 6. Sleeve rod; 7. Connecting assembly; 701. Fourth spring; 702. Connecting block; 8. Lifting rod; 9. Fixed guardrail; 10. Positioning assembly; 101. Positioning rod; 102. Disc; 103. Second spring; 11. Movable guardrail; 12. Chassis; 13. Cavity; 14. Inner plate; 15. Outer plate; 16. Cylindrical groove; 17. Through hole; 18. Support assembly; 181. Third spring; 182. Support rod; 19. Vertical pole; 20. Cavity; 21. Inner jack; 22. Outer jack; 23. Chimney body; 24. Maintenance platform; 25. Outer winch; 26. Inner winch; 27. Slide rail; 28. Roller; 29. ​​Telescopic rod; 30. Fifth spring. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1 、 Figure 3 、 Figure 6 、 Figure 10 and Figure 11The present invention provides a technical solution: an adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney, comprising a fixed platform 1, a movable platform 2 movably sleeved inside the fixed platform 1, a plurality of fixed platforms 1 are provided, and two adjacent fixed platforms 1 are movably connected through the movable platform 2, one end of the movable platform 2 is movably installed inside one of the fixed platforms 1, and the other end of the movable platform 2 is fixedly connected to one side of the other fixed platform 1, and the expansion or retraction of the plurality of fixed platforms 1 is achieved by telescopic movement of the movable platform 2, a telescopic component 3 is installed inside the movable platform 2, and the arrangement of the telescopic component 3 provides power for the movement of the movable platform 2, a rotating shaft 4 is fixedly sleeved on the inner wall of the telescopic component 3, and the arrangement of the rotating shaft 4 serves to connect the telescopic component 3 with a rotating motor 5, and a rotating motor 5 located below the fixed platform 1 is fixedly installed on the lower end of the rotating shaft 4, and the installation of the rotating motor 5 can realize the extension or retraction of the movable platform 2 by cooperating with the telescopic component 3. The two ends of the front and rear sides of the upper end surface of the fixed platform 1 are respectively fixedly installed with a sleeve rod 6, and the setting of the sleeve rod 6 provides space for the lifting movement of the lifting rod 8. The inner wall of the sleeve rod 6 is movably sleeved with a lifting rod 8, and the lifting rod 8 is movably sleeved with the sleeve rod 6 through a connecting assembly 7. The setting of the connecting assembly 7 plays a role in connecting the lifting rod 8 with the sleeve rod 6. By changing the connection mode of the connecting assembly 7 and the sleeve rod 6, the telescopic length of the lifting rod 8 can be adjusted, so that the use height of the fixed guardrail 9 can be matched according to the height of the staff. The upper end of the lifting rod 8 is fixedly installed with a fixed guardrail 9, and the inner wall of the fixed guardrail 9 is movably sleeved with a movable guardrail 11. The setting of the movable guardrail 11 plays a protective role for the staff when the movable platform 2 is in use. The movable guardrail 11 is movably sleeved with the fixed guardrail 9 through a positioning assembly 10. The positioning assembly 10 plays a role in connecting the fixed guardrail 9 with the movable guardrail 11. By connecting the positioning assembly 10 with the movable guardrail 11, the movable guardrail 11 has a limiting effect after adjustment.

[0021] See also Figure 1 、 Figure 12 and Figure 13 A cavity 13 for the movable platform 2 is provided inside the fixed platform 1. The opening of the cavity 13 provides space for the telescopic movement of the movable platform 2 within the fixed platform 1. A chassis 12 is fixedly installed at the lower end of the fixed platform 1, and the inner wall of the chassis 12 is fixedly sleeved with the outer wall of the rotating motor 5. The chassis 12 plays a protective role for the rotating motor 5, so that the fixed platform 1 is not in contact with the ground when not in use. An inner side plate 14 is fixedly installed on the inner side of the upper end surface of the fixed platform 1, and an outer side plate 15 is fixedly connected to the outer side of the upper end surface of the fixed platform 1. A chimney body 23 is provided on the inner side of the fixed platform 1, and an inspection platform 24 is fixedly installed on the upper end of the chimney body 23. External winches 25 are evenly distributed on the outer side of the lower end surface of the inspection platform 24, and the external winch 25 is connected to the outer plate 15 through a wire rope. Internal winches 26 are evenly distributed on the inner side of the lower end surface of the inspection platform 24, and the internal winch 26 is connected to the inner plate 14 through a wire rope. The internal winch 26 and the external winch 25 are staggeredly installed at the bottom of the inspection platform 24, and slide rails 27 are evenly distributed on the outer wall of the chimney body 23. Rollers 28 are connected to the outer side of the slide rails 27 in a rolling manner. A telescopic rod 29 is fixedly installed on the end of the roller 28 away from the slide rail 27. A fifth spring 30 is movably sleeved on the outer wall of the telescopic rod 29. The inner end of the fifth spring 30 is connected to the roller 28, and the outer ends of the fifth spring 30 and the telescopic rod 29 are fixedly connected to the inner side of the inner plate 14.

[0022] The left and right ends of the upper end surfaces of the inner and outer panels 14 and 15 are respectively installed with sleeve rods 6, and a vertical rod 19 is fixedly installed between the two adjacent sleeve rods 6. The vertical rod 19 is installed in the middle of the inner and outer panels 14 and 15. The inner wall of the vertical rod 19 is provided with a support assembly 18, and the upper end of the support assembly 18 is fixedly connected to the lower end of the fixed guardrail 9. The setting of the support assembly 18 serves to connect the fixed guardrail 9 and the vertical rod 19.

[0023] See also Figure 2 、 Figure 4 and Figure 8 A cylindrical groove 16 is provided inside the sleeve rod 6, and the inner wall of the cylindrical groove 16 is movably connected to the outer wall of the lifting rod 8. The opening of the cylindrical groove 16 provides space for the movement of the lifting rod 8 inside the sleeve rod 6. Through holes 17 for connecting to the connecting component 7 are evenly provided on one side of the sleeve rod 6. The connection between the through hole 17 and the connecting component 7 can realize the connection and positioning of the sleeve rod 6 and the lifting rod 8.

[0024] The connecting assembly 7 includes a fourth spring 701 and a connecting block 702. The inner end of the fourth spring 701 is fixedly connected to the inner wall of the lifting rod 8. The setting of the fourth spring 701 serves to connect the connecting block 702 and the lifting rod 8. When the fourth spring 701 retracts, the connecting block 702 can be retracted into the interior of the lifting rod 8, and when the fourth spring 701 rebounds, the connecting block 702 can be connected to the sleeve rod 6. The outer end of the connecting block 702 is fixedly connected to the connecting block 702, and the outer wall of the connecting block 702 is movably connected to the inner wall of the through hole 17. By changing the connection method between the through hole 17 and the connecting block 702, the telescopic movement of the lifting rod 8 in the sleeve rod 6 can be realized.

[0025] The telescopic assembly 3 includes a gear 301 and a rack 302. The inner wall of the gear 301 is fixedly connected to the outer wall of the rotating shaft 4. The rotation of the rotating shaft 4 provides power for the rotation of the gear 301. The gear 301 is meshed with the teeth on one side of the rack 302. The tooth meshing connection method makes the circumferential rotation of the gear 301 provide power for the linear movement of the rack 302. The other side of the rack 302 is fixedly connected to the inner wall of the movable platform 2. The movement of the rack 302 provides power for the telescopic movement of the movable platform 2.

[0026] A cavity 20 is provided inside the fixed guardrail 9, and the inner wall of the cavity 20 is movably connected to the outer wall of the movable guardrail 11. The opening of the cavity 20 provides a control for the telescopic movement of the movable guardrail 11. An external socket 22 for connecting the positioning component 10 is provided at one end of the upper end surface of the fixed guardrail 9. The setting of the positioning component 10 serves to connect and position the fixed guardrail 9 and the movable guardrail 11.

[0027] See also Figure 5 、 Figure 7 and Figure 9 The movable guardrail 11 is penetrated and evenly provided with inner plug holes 21, which are connected to the outer plug holes 22 through the positioning component 10. The positioning component 10 is connected to the inner plug holes 21 to fix the telescopic length of the movable guardrail 11.

[0028] The positioning assembly 10 includes a positioning rod 101, a disc 102 and a second spring 103. The upper end of the positioning rod 101 is fixedly connected to the lower end of the disc 102, and the second spring 103 is movably connected to the outer wall of the positioning rod 101. The setting of the second spring 103 serves to connect the positioning rod 101 with the fixed guardrail 9. The lower end of the second spring 103 is fixedly connected to the fixed guardrail 9, and the upper end of the second spring 103 is fixedly connected to the disc 102. The positioning rod 101 passes through the interior of the inner hole 21 from the top of the outer hole 22 and then passes out from the bottom of the outer hole 22. The setting of the positioning rod 101 serves to connect the inner hole 21 and the outer hole 22, so as to achieve the connection between the positioning rod 101, the fixed guardrail 9 and the movable guardrail 11.

[0029] The support assembly 18 includes a third spring 181 and a support rod 182. The lower end of the third spring 181 is fixedly connected to the bottom surface of the inner wall of the vertical pole 19, and the upper end of the third spring 181 is fixedly connected to the lower end of the support rod 182. The setting of the third spring 181 serves to connect the support rod 182 and the vertical pole 19. The upper end of the support rod 182 is fixedly connected to the lower end of the fixed guardrail 9. The installation of the support rod 182 serves to connect the third spring 181 and the fixed guardrail 9.

[0030] In summary, the adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney is used. When in use, the fixed platform 1 and the movable platform 2 are alternately spliced ​​to form a closed circular ring. The inner plate 14 and the outer plate 15 are respectively connected to the inner winch 26 and the outer winch 25 installed at the bottom of the maintenance platform 24 through steel wire ropes, and the inner winch 16 and the outer winch 25 are both externally connected to a control device. By controlling the power supply of the inner winch 16 and the outer winch 25, the inner winch 16 and the outer winch 25 drive the winding or unwinding of the steel wire rope to achieve the lifting movement of the inner plate 14 and the outer plate 15 outside the chimney. The compression or rebound of the telescopic rod 29 and the fifth spring 30 is used to make the roller 28 always roll on the slide rail 27.

[0031] Example 1: First, the rotating motor 5 is externally connected to a controller, which adjusts the use height of the fixed guardrail 9 according to the height requirements of the staff. The connecting block 702 is pressed to move toward the inside of the lifting rod 8. While the connecting block 702 moves, the fourth spring 701 is compressed until the connecting block 702 is separated from the through hole 17 and retracted into the inside of the lifting rod 8. Then, the fixed guardrail 9 is pulled to move in the vertical direction. Due to the separation of the connecting block 702 from the through hole 17, the lifting rod 8 moves in the cylindrical groove 16, and then the fourth spring 701 is used to rebound and pop the connecting block 702 out from the inside of another through hole 17, so that the connection between the lifting rod 8 and the sleeve rod 6 can be realized. At this time, the use height of the fixed guardrail 9 can be fixed. The height of the fixed guardrail 9 can be adjusted according to the height of the staff. Then, as the diameter of the tapered chimney increases, the power of the rotating motor 5 is turned on by the external power supply and the controller. After the rotating motor 5 is turned on, it drives the rotation of the rotating shaft 4. The rotation of the rotating shaft 4 drives the rotation of the gear 301. Due to the tooth meshing connection between the gear 301 and the rack 302, the gear 301 rotates in a circular manner and drives the linear movement of the rack 302. The rack 302 moves and drives the movable platform 2 to extend inside the cavity 13. Since the movable platform 2 is set between two adjacent fixed platforms 1, when the movable platform While one of the fixed platforms 1 is moving inside, the outer end of the movable platform 2 is fixedly connected to the other fixed platform 1, thereby achieving the outward expansion of several fixed platforms 1. In this way, the expansion of several fixed platforms 1 and movable platforms 2 is suitable for use in chimneys with larger diameters. Subsequently, when the diameter of the chimney becomes smaller, the power supply of the rotating motor 5 is turned on, and the rotation shaft 4 is reversed, so that the movable platform 2 is retracted into the interior of the fixed platform 1, thereby achieving the inward retraction of several fixed platforms 1. Finally, when the use distance adjustment of the movable platform 2 is completed, the movable guardrail 11 is pulled out from the cavity 20 opened by the fixed guardrail 9, and the movable guardrail 11 is pulled out. The outer end of the guardrail 11 is inserted into the interior of the cavity 20 opened by the adjacent fixed guardrail 9, so that the movable guardrail 11 can protect the movable platform 2 section. In order to achieve the fixation of the movable guardrail 11 between the two adjacent fixed guardrails 9, the positioning rod 101 is inserted from the outside of the fixed guardrail 9 into the interior of the inner plug hole 21 and then extended to the bottom of the fixed guardrail 9. At this time, the positioning rod 101 is engaged with the inner socket 21 and the outer socket 22, so that the positioning rod 101 can limit the fixed guardrail 9 and the movable guardrail 11, so that the setting of the fixed guardrail 9 and the movable guardrail 11 plays a role in protecting the closed-loop annular operating platform composed of several fixed platforms 1 and the movable platform 2.

[0032] Example 2: The upper end surfaces of the two adjacent inner panels 14 and the outer panels 15 are each provided with an isolation guardrail, which has a laterally retractable function. The models of this isolation guardrail include but are not limited to the Jintainuo movable isolation guardrail. The two ends of the inner isolation guardrail are respectively installed on the two adjacent inner panels 14, and the two ends of the outer isolation guardrail are respectively installed on the two adjacent outer panels 15. When the two adjacent fixed platforms 1 are unfolded, the isolation guardrail is stretched under the movement of the fixed platform 1, and the movable platform 2 extends to the outside of the fixed platform 1. When the two adjacent fixed platforms 1 are retracted, the isolation guardrail is retracted under the movement of the fixed platform 1, and the movable platform 2 is retracted to the inside of the fixed platform 1. The extension and retraction of the isolation guardrail are utilized to enable the isolation guardrail to also protect the movable platform 2.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Furthermore, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney, comprising a fixed platform (1), characterized in that: The fixed platform (1) is movably sleeved with a movable platform (2) inside. The fixed platform (1) is provided with a plurality of fixed platforms. Two adjacent fixed platforms (1) are movably connected via the movable platform (2). A telescopic component (3) is installed inside the movable platform (2). The inner wall of the telescopic component (3) is fixedly sleeved with a rotating shaft (4). The lower end of the rotating shaft (4) is fixedly installed with a rotating motor (5) located below the fixed platform (1). The front and rear ends of the upper end surface of the fixed platform (1) are fixedly installed with a sleeve rod (6). The inner wall of the sleeve rod (6) is movably sleeved with a lifting rod (8). The lifting rod (8) is movably sleeved with the sleeve rod (6) through a connecting component (7). The upper end of the lifting rod (8) is fixedly installed with a fixed guardrail (9). The inner wall of the fixed guardrail (9) is movably sleeved with a movable guardrail (11). The movable guardrail (11) is movably sleeved with the fixed guardrail (9) through a positioning component (10).

2. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 1, characterized in that: The interior of the fixed platform (1) is provided with a cavity (13) for the movable platform (2) to move. The lower end of the fixed platform (1) is fixedly mounted with a chassis (12), and the inner wall of the chassis (12) is fixedly sleeved with the outer wall of the rotating motor (5). The inner side of the upper end surface of the fixed platform (1) is fixedly mounted with an inner side plate (14), and the outer side of the upper end surface of the fixed platform (1) is fixedly connected with an outer side plate (15). A chimney body (23) is provided on the inner side of the fixed platform (1), and an inspection platform (24) is fixedly installed on the upper end of the chimney body (23). External hoists (25) are evenly distributed on the outer side of the lower end surface of the inspection platform (24), and the external hoists (25) are connected to the outer side plate (15) through a steel wire rope. Internal hoists (26) are evenly distributed on the inner side of the lower end surface of the inspection platform (24), and the internal hoists (26) are connected to the inner side plate (14) through a steel wire rope. The internal hoists (26) and the external hoists (25) are staggered. Installed at the bottom of the maintenance platform (24), the outer wall of the chimney body (23) is evenly distributed with slide rails (27), the outer side of the slide rail (27) is connected to a roller (28) in a rolling manner, and a telescopic rod (29) is fixedly installed at one end of the roller (28) away from the slide rail (27), and a fifth spring (30) is movably sleeved on the outer wall of the telescopic rod (29), the inner end of the fifth spring (30) is connected to the roller (28), and the outer ends of the fifth spring (30) and the telescopic rod (29) are fixedly connected to the inner side of the inner plate (14).

3. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 2, characterized in that: Sleeve rods (6) are respectively installed at the left and right ends of the upper end surfaces of the inner plate (14) and the outer plate (15), and a vertical rod (19) is fixedly installed between two adjacent sleeve rods (6). A support assembly (18) is provided on the inner wall of the vertical rod (19), and the upper end of the support assembly (18) is fixedly connected to the lower end of the fixed guardrail (9).

4. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 1 is characterized by: A cylindrical groove (16) is provided inside the sleeve rod (6), and the inner wall of the cylindrical groove (16) is movably sleeved with the outer wall of the lifting rod (8). Through holes (17) for connecting to the connecting assembly (7) are evenly provided on one side of the sleeve rod (6).

5. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 4, characterized in that: The connecting assembly (7) includes a fourth spring (701) and a connecting block (702), wherein the inner end of the fourth spring (701) is fixedly connected to the inner wall of the lifting rod (8), the outer end of the connecting block (702) is fixedly connected to the connecting block (702), and the outer wall of the connecting block (702) is movably connected to the inner wall of the through hole (17).

6. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 1, characterized in that: The telescopic assembly (3) comprises a gear (301) and a rack (302); the inner wall of the gear (301) is fixedly sleeved with the outer wall of the rotating shaft (4); the gear (301) is meshed with the teeth on one side of the rack (302); and the other side of the rack (302) is fixedly connected to the inner wall of the movable platform (2).

7. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 1, characterized in that: A cavity (20) is provided inside the fixed guardrail (9), and the inner wall of the cavity (20) is movably connected to the outer wall of the movable guardrail (11). An outer plug hole (22) for connecting to the positioning assembly (10) is provided through one end of the upper end surface of the fixed guardrail (9).

8. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 7, characterized in that: The movable guardrail (11) is provided with inner insertion holes (21) that are uniformly formed throughout, and the inner insertion holes (21) are connected to the outer insertion holes (22) via a positioning assembly (10).

9. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 8, characterized in that: The positioning assembly (10) includes a positioning rod (101), a disc (102) and a second spring (103). The upper end of the positioning rod (101) is fixedly connected to the lower end of the disc (102). The second spring (103) is movably connected to the outer wall of the positioning rod (101). The lower end of the second spring (103) is fixedly connected to the fixed guardrail (9). The upper end of the second spring (103) is fixedly connected to the disc (102). The positioning rod (101) passes through the interior of the inner plug hole (21) from the top of the outer plug hole (22) and then passes out from the bottom of the outer plug hole (22).

10. The adaptive telescopic annular operating platform for repairing the outer wall of a variable-section chimney according to claim 3, characterized in that: The support assembly (18) includes a third spring (181) and a support rod (182), wherein the lower end of the third spring (181) is fixedly connected to the bottom surface of the inner wall of the upright (19), the upper end of the third spring (181) is fixedly connected to the lower end of the support rod (182), and the upper end of the support rod (182) is fixedly connected to the lower end of the fixed guardrail (9).

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