A shaft protection device with flipping function

Abstract

The present invention discloses a shaft protection device with a flipping function, which relates to the field of construction engineering. The shaft protection device includes a support pipe, a protective net, a warning plate, a lateral fence, a spring damper, a baffle, a fixed seat, and a rotating shaft. The protective net is tightly connected to the support pipe, the warning plate is tightly connected to the support pipe, the lateral fence is rotatably connected to the protective net, the baffle is tightly connected to the support pipe, the rotating shaft is tightly connected to the support pipe, the rotating shaft is rotatably connected to the fixed seat, the spring damper is rotatably connected to the rotating shaft, and the top end of the support pipe is retractable. After the vertical protection is converted into horizontal protection through the rotation of the rotating shaft, the upper support pipe of the present invention can be extended to completely cover the entire shaft, thereby meeting the specification requirements for horizontal shaft protection.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, in particular to a shaft protection device with a turning function. Background Art

[0002] The elevator shaft is the hoistway used to install the elevator. Door openings will be reserved for installing the elevator doors. As the elevator doors are edge openings, they are dangerous. Therefore, before the elevator doors are officially installed, protective devices need to be installed at the elevator shaft opening.

[0003] High-rise construction presents greater safety risks than ground-level construction. Therefore, safety protection devices are usually installed in elevator shafts to reduce the risk of workers accidentally falling while working on floors and to prevent falling objects from high places from injuring workers working on the ground. Traditional opening protection is usually divided into vertical protection and horizontal protection within the shaft. When entering the shaft to work, the vertical opening protection must be removed. After the work is completed, it is often difficult to restore the edge protection in time, which is time-consuming, labor-intensive, and increases costs. At the same time, there are many unstable factors and frequent accidents in working in the shaft. Existing protective devices are not stable and lack safety protection.

[0004] Therefore, a shaft protection device that can switch between vertical protection and horizontal protection is needed to solve the problems of slow construction speed, low efficiency, high cost caused by the need to remove vertical protection during construction in the shaft, and safety hazards caused by untimely restoration of hole protection. Summary of the Invention

[0005] The object of the present invention is to provide a shaft protection device with a flipping function to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the shaft protection device includes a support tube, a protective net, a warning plate, a lateral fence, a spring damper, a baffle, a fixed seat, and a rotating shaft. The protective net is tightly connected to the support tube, the warning plate is tightly connected to the support tube, the lateral fence is rotatably connected to the protective net, the baffle is tightly connected to the support tube, the rotating shaft is tightly connected to the support tube, the rotating shaft is rotatably connected to the fixed seat, the spring damper is rotatably connected to the rotating shaft, and the top end of the support tube is retractable.

[0007] The main protective fence of the present invention is 1050mm wide and 2000mm high; the side fence is 400mm wide and 1800mm high. After converting from vertical protection to horizontal protection, the upper support tube of the present invention can be extended to 2200mm~2500mm, which can completely cover the entire shaft and meet the regulatory requirements for shaft horizontal protection. When entering the shaft for construction at a high level, it is often necessary to remove the vertical protection of the opening. The present invention improves the original vertical protective mesh structure and installation method, and adopts a retractable support tube as the main load-bearing rod. While meeting the horizontal protection, it can also serve as a shaft operation platform. Taking into account that the construction environment of high-rise shafts is mostly complex and the lighting is poor, the present invention adopts a more eye-catching yellow protective net, a red warning plate and a black and yellow baffle to play a warning and safety protection role. The present invention can be transformed from a vertical protection state to a horizontal shaft horizontal protection by rotating the rotating shaft. While rotating, the side fences are folded inward and retracted. After the entire guardrail is placed horizontally, it is unfolded to form a plane. The present invention secures the fixings to the floor slab with expansion screws, allowing the number of fixings to be reduced or increased later depending on actual site conditions. Given the heavy weight of the fence, manual retraction and deployment can be difficult. Therefore, the present invention incorporates two spring dampers at either end of the rotating shaft at the fence's base. These provide a cushioning effect when the fence is lowered and a booster when it is retracted, reducing the difficulty of manual retraction and deployment while also increasing safety.

[0008] Furthermore, the warning board is used for spraying warning slogans, and the fixing base is fixed on the ground.

[0009] Warning slogans can be sprayed on the warning board to warn staff, and the fixing base is fixed to the floor slab by expansion screws to restrict the rotation of the rotating shaft.

[0010] Furthermore, the shaft protection device also includes an auxiliary support mechanism, which is tightly connected to the support tube. A power chamber and a movable chamber are provided in the support tube. The auxiliary support mechanism includes a power component and a movable component. The movable component is transmission-connected to the power component. The power component is located in the power chamber, and the movable component is located in the movable chamber.

[0011] When the present invention transforms into a horizontal shaft protection through the rotation of the rotating shaft, the top end of the support tube extends out and abuts against the wall as a support. However, when the staff enters the shaft, they will apply pressure to the fence. The fence may be offset by relying solely on the supporting force of the support tube, and safety cannot be guaranteed. An auxiliary support mechanism is provided in the support tube to provide additional support for the shaft protection device. The power component provides power to the auxiliary support mechanism, moves the movable component out of the movable cavity, and supports it to the inner wall of the elevator shaft to provide additional support.

[0012] Furthermore, the power component includes a drive motor, which is tightly connected to the power chamber, and the output end of the drive motor is transmission-connected to the first gear. The movable component includes a second gear, a fixed shaft, and a telescopic rod. The second gear is meshed with the first gear, the fixed shaft is tightly connected to the second gear, the fixed shaft is rotationally connected to the movable chamber, the telescopic rod is tightly connected to the second gear, and a ball joint is provided at the end of the telescopic rod away from the second gear, and a support seat is provided on the ball joint.

[0013] The drive motor is the main power source of the power assembly. When the drive motor is started, it drives the first gear to rotate, and then drives the second gear meshing with the first gear to rotate. The fixed shaft is fixed on the second gear to constrain the rotation of the second gear, so that the telescopic rod is rotated out of the movable cavity. The telescopic rod is extended to press the support base against the wall to provide support. The ball joint allows relative rotation between the support base and the telescopic rod to ensure that the bottom surface of the support base is in contact with the wall, preventing the support base from shifting, thereby increasing the force-bearing area, increasing the friction with the wall, and making the support more stable.

[0014] Furthermore, one eighth of the outer circumferential surface of the second gear is provided with a tooth surface, and the root circle diameter of the tooth surface is smaller than the diameter of the outer circumferential surface.

[0015] When the second gear rotates driven by the first gear, because only one-eighth of the tooth surface is provided on the outer circumference of the second gear, the second gear will only rotate 45 degrees, so the telescopic rod will only rotate 45 degrees, thereby forming a 45-degree support angle between it and the support tube, and the 45-degree support is more stable. After the second gear rotates 45 degrees, because the root circle diameter of the tooth surface is smaller than the diameter of the outer circumference, the tooth surface of the first gear will abut against the outer circumference of the second gear. The drive motor stops, and the first gear will support the second gear to prevent the rotation of the second gear from affecting the support angle.

[0016] Furthermore, the warning plate includes a main board body, a movable plate, a connecting column, and a piston plate. The main board body is tightly connected to the support tube. A first chamber and a second chamber are provided in the main board body. The movable plate is slidingly connected to the first chamber. The upper end of the connecting column is tightly connected to the movable plate. The lower end of the connecting column is tightly connected to the piston plate. The piston plate is slidingly connected to the second chamber. A return spring is provided at the lower end of the piston plate. The end of the return spring away from the piston plate is tightly connected to the inner wall of the second chamber. The second chamber is filled with hydraulic oil, and the second chamber is connected to the support seat.

[0017] The main plate can be used to spray warning slogans. When the present invention is converted into a horizontal well protection, the warning plate will serve as a standing platform for personnel. Therefore, the movable plate will be subjected to downward pressure, thereby moving downward along the first chamber, thereby driving the connecting column to move downward, and pushing the piston plate fastened to the connecting column to move downward, thereby applying pressure to the hydraulic oil in the second chamber, and transmitting the hydraulic oil to the support seat through the pipeline, thereby giving the support seat an additional thrust, and the greater the pressure the movable plate is subjected to, the greater the pressure transmitted to the support seat, making the support seat fit more closely to the wall, thereby preventing sliding. When the personnel evacuate, the piston plate moves upward and returns to its original position under the push of the return spring.

[0018] Furthermore, a third chamber and a fourth chamber are provided in the support seat, the third chamber is connected to the second chamber, and the movable component also includes an anti-slip seat and a movable plate. The anti-slip seat is slidingly connected to the fourth chamber, the anti-slip seat is firmly connected to the movable plate, and the movable plate is slidingly connected to the third chamber.

[0019] The hydraulic oil flows into the third chamber through the pipeline, thereby transmitting the pressure to the movable plate, which in turn pushes the movable plate to slide in the third chamber and pushes the anti-slip seat to slide along the fourth chamber to close to the wall, thereby increasing the pressure between the anti-slip seat and the wall, thereby increasing the friction between the anti-slip seat and the wall, thereby preventing the present invention from sliding during operation and improving safety.

[0020] Furthermore, a protrusion is provided on one end of the anti-slip seat away from the movable plate.

[0021] By providing protrusions on the anti-slip seat, the friction between the anti-slip seat and the wall is further increased, thereby improving stability.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention improves the original vertical protective mesh structure and installation method, adopts a retractable support tube as the main load-bearing rod, and can be changed from a vertical protection state to a horizontal shaft horizontal protection by rotating the rotating shaft. While rotating, the lateral fence is folded inward and retracted, and after the entire guardrail is placed horizontally, it is unfolded to form a plane, which can meet the horizontal protection requirements while also being able to serve as a shaft operation platform.

[0023] An auxiliary support mechanism is provided in the support tube to provide additional support for the shaft protection device. The power component provides power to the auxiliary support mechanism, moves the movable component out of the movable cavity, and supports it to the inner wall of the elevator shaft to provide additional support. By providing a one-eighth tooth surface on the outer circular surface of the second gear, the second gear will only rotate 45 degrees under the drive of the first gear, so that the telescopic rod will only rotate 45 degrees, thereby forming a 45-degree angle support between it and the support tube, and the 45-degree support is more stable.

[0024] By filling the second chamber with hydraulic oil, when the present invention is converted into a horizontal well protection, the warning plate will serve as a standing platform for personnel, so the movable plate will be subjected to downward pressure, thereby moving downward along the first chamber, thereby driving the connecting column to move downward, and pushing the piston plate fastened to the connecting column to move downward, thereby applying pressure to the hydraulic oil in the second chamber, and transmitting the hydraulic oil to the support seat through the pipeline, thereby giving the support seat an additional thrust, and the greater the pressure the movable plate is subjected to, the greater the pressure transmitted to the support seat, making the support seat fit more closely to the wall, thereby preventing sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of vertical protection of the present invention;

[0028] Figure 3 yes Figure 2 A partial enlarged view of the A direction;

[0029] Figure 4 It is a schematic diagram of horizontal protection of the present invention;

[0030] Figure 5 It is a schematic diagram of the support tube structure of the present invention;

[0031] Figure 6 It is a schematic structural diagram of the auxiliary support mechanism of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the warning plate of the present invention;

[0033] Figure 8 It is a schematic diagram of the support base structure of the present invention;

[0034] Figure 9 yes Figure 6 A local B-direction enlarged view;

[0035] In the figure: 1-support tube, 11-power chamber, 12-movable chamber, 2-protective net, 3-warning plate, 31-main body, 311-first chamber, 312-second chamber, 32-movable plate, 33-connecting column, 34-piston plate, 35-reset spring, 4-lateral fence, 5-spring damper, 6-baffle, 7-fixed seat, 8-rotating shaft, 9-auxiliary support mechanism, 91-power assembly, 911-drive motor, 912-first gear, 92-movable assembly, 921-second gear, 922-fixed shaft, 923-telescopic rod, 924-ball joint, 925-support seat, 9251-third chamber, 9252-fourth chamber, 926-anti-slip seat, 927-movable disk. DETAILED DESCRIPTION

[0036] 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.

[0037] The present invention provides a technical solution:

[0038] like Figure 1 、 Figure 2 As shown, the shaft protection device includes a support tube 1, a protective net 2, a warning plate 3, a lateral fence 4, a spring damper 5, a baffle 6, a fixed seat 7, and a rotating shaft 8. The protective net 2 is tightly connected to the support tube 1, the warning plate 3 is tightly connected to the support tube 1, the lateral fence 4 is rotatably connected to the protective net 2, the baffle 6 is tightly connected to the support tube 1, the rotating shaft 8 is tightly connected to the support tube 1, the rotating shaft 8 is rotatably connected to the fixed seat 7, the spring damper 5 is rotatably connected to the rotating shaft 8, and the top end of the support tube 1 is retractable.

[0039] The main protective fence of the present invention is 1050mm wide and 2000mm high; the side fence is 400mm wide and 1800mm high. After converting from vertical protection to horizontal protection, the upper support tube 1 of the present invention can be extended to 2200mm~2500mm, which can completely cover the entire shaft and meet the regulatory requirements for shaft horizontal protection. When entering the shaft for construction at a high level, it is often necessary to remove the vertical protection of the hole. The present invention improves the original vertical protective mesh structure and installation method, using a retractable support tube 1 as the main load-bearing rod, which can also serve as a shaft operation platform while meeting the horizontal protection requirements. Considering that the construction environment of high-rise shafts is mostly complex and the lighting is poor, the present invention uses a more eye-catching yellow protective net 2, a red warning plate 3 and a black and yellow baffle 6 to play a warning and safety protection role. The present invention can be converted from a vertical protection state to a horizontal shaft horizontal protection state by rotating the rotating shaft 8. While rotating, the side fence 4 is folded inward and retracted. After the entire guardrail is placed horizontally, it is unfolded to form a plane. The present invention secures the fixing bases 7 to the floor slab with expansion screws, allowing the number of fixing bases 7 to be reduced or increased later depending on the actual site conditions. Considering the heavy weight of the fence as a whole, manual retraction and deployment may be difficult. Therefore, the present invention provides two spring dampers 5 at each end of the rotating shaft 8 at the bottom of the fence. These provide a buffering effect when the fence is lowered and a booster effect when the fence is retracted, reducing the difficulty of manual retraction and deployment while also increasing safety.

[0040] like Figure 2 、 Figure 3 As shown, the warning plate 3 is used for spraying warning slogans, and the fixing base 7 is fixed on the ground.

[0041] Warning slogans can be sprayed on the warning plate 3 to warn staff, and the fixing seat 7 is fixed to the floor slab by expansion screws to restrict the rotation of the rotating shaft 8.

[0042] like Figure 4 、 Figure 5 As shown, the shaft protection device also includes an auxiliary support mechanism 9, which is fastened to the support tube 1. A power chamber 11 and a movable chamber 12 are provided in the support tube 1. The auxiliary support mechanism 9 includes a power component 91 and a movable component 92. The movable component 92 is transmission-connected to the power component 91. The power component 91 is located in the power chamber 11, and the movable component 92 is located in the movable chamber 12.

[0043] When the present invention is transformed into a horizontal shaft protection through the rotation of the rotating shaft 8, the top end of the support tube 1 extends out and abuts against the wall as a support. However, when the staff enters the shaft, they will put pressure on the fence. The fence may be offset by relying solely on the supporting force of the support tube 1, and the safety cannot be guaranteed. An auxiliary support mechanism 9 is provided in the support tube 1 to provide additional support for the shaft protection device. The power component 91 provides power for the auxiliary support mechanism 9, and the movable component 92 is moved out of the movable cavity 12 and supported on the inner wall of the elevator shaft to provide additional support.

[0044] like Figure 5 、 Figure 6 As shown, the power assembly 91 includes a drive motor 911, which is tightly connected to the power chamber 11. The output end of the drive motor 911 is transmission-connected to the first gear 912. The movable assembly 92 includes a second gear 921, a fixed shaft 922, and a telescopic rod 923. The second gear 921 is engaged with the first gear 912. The fixed shaft 922 is tightly connected to the second gear 921. The fixed shaft 922 is rotationally connected to the movable chamber 12. The telescopic rod 923 is tightly connected to the second gear 921. A ball joint 924 is provided at the end of the telescopic rod 923 away from the second gear 921, and a support seat 925 is provided on the ball joint 924.

[0045] The drive motor 911 is the main power source of the power assembly 91. When the drive motor 911 is started, it drives the first gear 912 to rotate, and then drives the second gear 921 engaged with the first gear 912 to rotate. The fixed shaft 922 is fixed on the second gear 921 to constrain the rotation of the second gear 921, so that the telescopic rod 923 is rotated out of the movable cavity 12. The telescopic rod 923 is extended to press the support seat 925 against the wall to provide support. The ball joint 924 allows relative rotation between the support seat 925 and the telescopic rod 923 to ensure that the bottom surface of the support seat 925 is in contact with the wall, preventing the support seat 925 from shifting, thereby increasing the force area, increasing the friction with the wall, and making the support more stable.

[0046] like Figure 6 、 Figure 9 As shown, one eighth of the outer circumference of the second gear 921 is provided with a tooth surface, and the root circle diameter of the tooth surface is smaller than the diameter of the outer circumference.

[0047] When the second gear 921 rotates driven by the first gear 912, because only one-eighth of the tooth surface is provided on the outer circumference of the second gear 921, the second gear 921 will only rotate 45 degrees, so that the telescopic rod 923 will only rotate 45 degrees, thereby forming a 45-degree support angle between it and the support tube 1, and the 45-degree support is more stable. After the second gear 921 rotates 45 degrees, because the root circle diameter of the tooth surface is smaller than the diameter of the outer circumference, the tooth surface of the first gear 912 will abut against the outer circumference of the second gear 921. The drive motor 911 stops, and the first gear 912 will support the second gear 921 to prevent the rotation of the second gear 921 from affecting the support angle.

[0048] like Figure 7 As shown, the warning plate 3 includes a main plate body 31, a movable plate 32, a connecting column 33, and a piston plate 34. The main plate body 31 is tightly connected to the support tube 1. A first chamber 311 and a second chamber 312 are provided in the main plate body 31. The movable plate 32 is slidingly connected to the first chamber 311. The upper end of the connecting column 33 is tightly connected to the movable plate 32. The lower end of the connecting column 33 is tightly connected to the piston plate 34. The piston plate 34 is slidingly connected to the second chamber 312. A return spring 35 is provided at the lower end of the piston plate 34. The end of the return spring 35 away from the piston plate 34 is tightly connected to the inner wall of the second chamber 312. The second chamber 312 is filled with hydraulic oil. The second chamber 312 is connected to the support seat 925.

[0049] The main plate 31 can be used to spray warning slogans. When the present invention is converted into horizontal shaft protection, the warning plate 3 will serve as a standing platform for personnel, so the movable plate 32 will be subjected to downward pressure, thereby moving downward along the first chamber 311, thereby driving the connecting column 33 to move downward, and pushing the piston plate 34 fastened to the connecting column 33 to move downward, thereby applying pressure to the hydraulic oil in the second chamber 312, and transmitting the hydraulic oil to the support seat 925 through the pipeline, thereby giving the support seat 925 an additional thrust, and the greater the pressure on the movable plate 32, the greater the pressure transmitted to the support seat 925, making the support seat 925 fit more closely to the wall, thereby preventing sliding. When the personnel evacuate, under the push of the return spring 35, the piston plate 34 moves upward and returns to its original position.

[0050] like Figure 8 As shown, a third chamber 9251 and a fourth chamber 9252 are provided in the support seat 925, and the third chamber 9251 is connected to the second chamber 312. The movable component 92 also includes an anti-slip seat 926 and a movable disk 927. The anti-slip seat 926 is slidingly connected to the fourth chamber 9252, the anti-slip seat 926 is firmly connected to the movable disk 927, and the movable disk 927 is slidingly connected to the third chamber 9251.

[0051] The hydraulic oil flows into the third chamber 9251 through the pipeline, thereby transmitting the pressure to the movable plate 927, which in turn pushes the movable plate 927 to slide in the third chamber 9251, and pushes the anti-slip seat 926 to slide along the fourth chamber 9252 and stick to the wall, thereby increasing the pressure between the anti-slip seat 926 and the wall, and increasing the friction between the anti-slip seat 926 and the wall, thereby preventing the present invention from sliding during operation and improving safety.

[0052] like Figure 8 As shown, a protrusion is provided at one end of the anti-slip seat 926 away from the movable plate 927 .

[0053] By providing a protrusion on the anti-slip seat 926, the friction between the anti-slip seat and the wall is further increased, thereby improving stability.

[0054] Working principle of the present invention: The present invention can change from a vertical protection state to a horizontal well protection state by rotating the rotating shaft 8. While rotating, the lateral fence 4 is folded inward and stowed. After the entire guardrail is placed horizontally, it is unfolded to form a plane, forming a working platform in the well. After it is placed in place, the auxiliary support mechanism 9 is used to provide additional support for the well protection device. The drive motor 911 is started, thereby driving the first gear 912 to rotate, and then driving the second gear 921 engaged with the first gear 912 to rotate. The fixed shaft 922 is fixed on the second gear 921 to constrain the rotation of the second gear 921, so that the telescopic rod 923 is rotated out of the active cavity 12, and the telescopic rod 923 is extended to support The seat 925 abuts against the wall to provide support, and the ball joint 924 allows relative rotation between the support seat 925 and the telescopic rod 923, ensuring that the bottom surface of the support seat 925 is in contact with the wall, preventing the support seat 925 from shifting, thereby increasing the force-bearing area, increasing the friction with the wall, and making the support more stable. The pressure of personnel on the warning plate 3 is used to push the piston plate 34 downward, thereby applying pressure to the hydraulic oil in the second chamber 312, and transmitting the hydraulic oil to the support seat 925 through the pipeline, thereby giving the support seat 925 an additional thrust, and the greater the pressure on the movable plate 32, the greater the pressure transmitted to the support seat 925, making the support seat 925 fit more closely to the wall.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, 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 includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0056] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A shaft protection device with a flipping function, characterized in that: The shaft protection device comprises a support pipe (1), a protection net (2), a warning plate (3), a lateral fence (4), a spring damper (5), a baffle (6), a fixing seat (7), and a rotating shaft (8); the protection net (2) is fastened to the support pipe (1); the warning plate (3) is fastened to the support pipe (1); the lateral fence (4) is rotatably connected to the protection net (2); the baffle (6) is fastened to the support pipe (1); the rotating shaft (8) is fastened to the support pipe (1); the rotating shaft (8) is rotatably connected to the fixing seat (7); the spring damper (5) is rotatably connected to the rotating shaft (8); and the top end of the support pipe (1) is retractable; The shaft protection device further comprises an auxiliary support mechanism (9), the auxiliary support mechanism (9) being fastened to the support tube (1), the support tube (1) being provided with a power chamber (11) and a movable chamber (12), the auxiliary support mechanism (9) comprising a power assembly (91) and a movable assembly (92), the movable assembly (92) being in transmission connection with the power assembly (91), the power assembly (91) being located in the power chamber (11), and the movable assembly (92) being located in the movable chamber (12); The power assembly (91) includes a driving motor (911), the driving motor (911) is tightly connected to the power chamber (11), and the output end of the driving motor (911) is transmission-connected to a first gear (912). The movable assembly (92) includes a second gear (921), a fixed shaft (922), and a telescopic rod (923). The second gear (921) is meshed with the first gear (912), the fixed shaft (922) is tightly connected to the second gear (921), the fixed shaft (922) is rotationally connected to the movable chamber (12), the telescopic rod (923) is tightly connected to the second gear (921), and a ball joint (924) is provided at one end of the telescopic rod (923) away from the second gear (921), and a support seat (925) is provided on the ball joint (924). The warning plate (3) comprises a main plate (31), a movable plate (32), a connecting column (33), and a piston plate (34). The main plate (31) is fastened to the support tube (1). A first chamber (311) and a second chamber (312) are provided in the main plate (31). The movable plate (32) is slidably connected to the first chamber (311). The upper end of the connecting column (33) is fastened to the movable plate (32). The lower end of the connecting column (33) is fastened to the piston plate (34). The piston plate (34) is slidably connected to the second chamber (312). A return spring (35) is provided at the lower end of the piston plate (34). The end of the return spring (35) away from the piston plate (34) is fastened to the inner wall of the second chamber (312). The second chamber (312) is filled with hydraulic oil. The second chamber (312) is communicated with the support seat (925).

2. A shaft protection device with a flipping function according to claim 1, characterized in that: The warning plate (3) is used for spraying warning slogans, and the fixing seat (7) is fixed on the ground.

3. The shaft protection device with a flipping function according to claim 1, characterized in that: One eighth of the outer circumferential surface of the second gear (921) is provided with a tooth surface, and the root circle diameter of the tooth surface is smaller than the diameter of the outer circumferential surface.

4. The shaft protection device with a flipping function according to claim 1, characterized in that: The support seat (925) is provided with a third chamber (9251) and a fourth chamber (9252), the third chamber (9251) is communicated with the second chamber (312), the movable component (92) further includes an anti-slip seat (926) and a movable plate (927), the anti-slip seat (926) is slidably connected to the fourth chamber (9252), the anti-slip seat (926) is fastened to the movable plate (927), and the movable plate (927) is slidably connected to the third chamber (9251).

5. The shaft protection device with a flipping function according to claim 4, characterized in that: The anti-slip seat (926) is provided with a protrusion at one end away from the movable plate (927).

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