A method for turning over a shaft protection device

Abstract

A method for tilting and turning a vertical shaft protective device is disclosed. A door hinge is rotatably mounted on one side of the door body and fixedly connected to it. The door body is fixedly connected to the door hinge, and as the door hinge rotates, the door body can tilt and turn vertically to allow it to be opened and closed within the hollow structure. This invention enables remote electric control and manual control in case of power failure to tilt and turn a protective device weighing several tons vertically, achieving protection of the shaft opening. This reduces the horizontal length of the air duct's civil defense protection section, improves space utilization, reduces civil engineering investment, facilitates the layout of other civil engineering projects, and is simple to tilt and maintain during application.

Description

Technical Field

[0001] This invention relates to the field of shaft protection equipment, and in particular to a method for vertically rotating shaft protection equipment. Background Technology

[0002] In the field of subway engineering, the existing technology, patented technology CN202022480282.3, provides an open-type arched secondary lining structure for the vertical shaft of a subway station using the arched construction method. It includes: a vertical shaft with a horizontal channel at its bottom, extending towards the tunnel and connecting to it, the extension direction of the horizontal channel being the same as that of the tunnel; an arched cover passing through the horizontal channel, having an opening, and connecting to the vertical shaft. This utility model positions the vertical shaft in the middle of the main station structure, saving construction area. During the secondary lining construction of the main station structure, the construction of the open-type secondary lining at the vertical shaft ensures that subsequent operations such as slag removal and material feeding can be carried out through the shaft. Backfilling concrete on the top of the open-type arched secondary lining and the secondary lining construction of the vertical shaft ensure the overall stability of the vertical shaft structure and enhance the load-bearing capacity at the shaft opening. Simultaneously, the vertical shaft can serve as a later-stage shield machine lifting shaft, effectively improving the operational efficiency during construction.

[0003] Due to the large passenger flow in urban subways and the high requirements for environmental control and ventilation, the installation of subway ventilation ducts is essential. For civil defense projects, the ventilation duct openings are both critical and vulnerable points, needing to meet both defense requirements and ventilation requirements during peacetime and wartime. In existing lines both domestically and internationally, ventilation duct openings are relatively large to ensure ventilation, and horizontal civil defense sections are typically installed within the ventilation ducts to meet protection requirements. However, the extensive use of protective equipment in these ducts results in long horizontal sections, leading to a large land area occupied. In some land-constrained stations, this increases the difficulty of layout design for other disciplines.

[0004] To reduce the horizontal length of the air duct civil defense protection section, improve space utilization, reduce civil engineering investment, and facilitate the layout of other civil engineering disciplines, the current horizontally located air duct civil defense section will be changed to be located in the air duct vertical shaft. Since the protective equipment is very heavy, weighing several tons (depending on the shaft opening size), and must meet the specifications for protective equipment that allows for remote control and manual operation in case of power failure, enabling the protective equipment to be tilted up and down is an urgent problem to be solved.

[0005] The information disclosed in the background section is only intended to enhance the understanding of the background of the present invention, and therefore may contain information that does not constitute prior art known to those skilled in the art in this country. Summary of the Invention

[0006] In view of the shortcomings or defects of the existing technology, a tilting device and method for shaft protection equipment are provided.

[0007] On one hand, the present invention discloses a method for overturning a vertical shaft protection device, characterized by comprising the following steps: S100. A vertical shaft civil engineering structure is provided, which is a vertical hollow structure with a rectangular opening. S200. Arrange the door body, and ensure that the weight and size of the door body are compatible with the rectangular opening; S300. A door hinge is rotatably provided, which is rotatably provided on one side of the door body and fixedly connected to the door body. The door body is fixedly connected to the door hinge, and as the door hinge rotates, the door body can flip up and down to realize that the door body is openable and closable in the hollow structure. S400. A gear is provided, which is located on the door hinge and the door hinge rotates synchronously with the gear; S500, A rack is provided, which is located on one side of the gear and meshes with the gear; S600. A push-pull rod is provided, one end of which is fixed to the side wall of the hollow structure, and the other end is telescopically connected to the rack. S700, a spring sleeve containing a spring, one end of which abuts against the spring sleeve and the other end of which is connected to the rack. When the door is closed, the spring is in a state of maximum compression, and when the door is open, the spring is in a state of freedom.

[0008] On the other hand, the present invention discloses a tilting device for shaft protection equipment, comprising: The shaft civil engineering structure is a vertical hollow structure with a rectangular opening; The door, which can be opened and closed, is located in the hollow structure; A door hinge is rotatably disposed on one side of the door body and fixedly connected to the door body. The door body is fixedly connected to the door hinge and opens and closes as the door hinge rotates. A gear is mounted on the door hinge and the door hinge rotates synchronously with the gear; A rack, which is disposed on one side of the gear and meshes with the gear; A push-pull rod, one end of which is fixed to the side wall of the hollow structure, and the other end of which is telescopically connected to the rack; A spring sleeve contains a spring, one end of which abuts against the spring sleeve and the other end is connected to the rack. When the door is closed, the spring is in its maximum compressed state.

[0009] In the aforementioned shaft protection equipment's tilting device, an adjusting nut for adjusting the spring compression state is installed at the tail end of the spring sleeve.

[0010] In the aforementioned shaft protection equipment's tilting device, the adjusting nut is threadedly connected to the inner wall of the spring sleeve.

[0011] In the aforementioned shaft protection equipment's flipping device, when the door is flipped open, the spring releases from its maximum compression state toward a free state.

[0012] In the tilting device of the shaft protection equipment, the push-pull rod is driven by a motor.

[0013] In the aforementioned shaft protection equipment's overturning device, the inner wall of the hollow structure is provided with a pair of horizontally extending protrusions facing each other, and the door body is supported on the protrusions in an openable and closable manner.

[0014] In the aforementioned shaft protection equipment's flipping device, the installation space of the push-pull rod determines the distance from the door to the civil engineering structure. Beneficial effects

[0015] This invention enables remote electric control and manual control in case of power failure to tilt a protective device weighing several tons up and down, thereby protecting the shaft opening, reducing the horizontal length of the air duct civil defense protection section, improving space resource utilization, reducing civil engineering investment, facilitating the layout of other professional civil engineering projects, and the tilting device has a simple structure and is easy to maintain during application.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to make the technical means of the present invention clearer and more understandable, so that those skilled in the art can implement it according to the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0017] Various other advantages and benefits of the present invention will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0018] In the attached diagram: Figure 1(a) and Figure 1(b) are longitudinal sectional views of the tilting device of the shaft protection equipment, wherein Figure 1(a) shows the door in the closed state and Figure 1(b) shows the door in the open state; Figure 2(a) and Figure 2(b) are schematic cross-sectional views of the tilting device in the fully closed and fully open states of the tilting device of the vertical shaft protection equipment. Figure 2(a) shows the closed state of the door and Figure 2(b) shows the open state of the door. Figure 3 This is a cross-sectional view of the flipping device.

[0019] The present invention will be further explained below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0020] The following will refer to Figure 1(a) to Figure 2(a). Figure 3 Specific embodiments of the invention will be described in more detail below. While specific embodiments of the invention are shown in the accompanying drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0021] It should be noted that certain terms are used in the specification and claims to refer to specific components. Those skilled in the art will understand that different terms may be used to refer to the same component. This specification and claims do not distinguish components based on differences in terminology, but rather on differences in function. The terms "comprising" or "including" used throughout the specification and claims are open-ended and should be interpreted as "comprising but not limited to." The following descriptions are preferred embodiments for carrying out the invention; however, these descriptions are for the purpose of understanding the general principles of the specification and are not intended to limit the scope of the invention. The scope of protection of this invention is determined by the appended claims.

[0022] To facilitate understanding of the embodiments of the present invention, the following will provide further explanation and description with reference to the accompanying drawings and several specific embodiments, and the accompanying drawings do not constitute a limitation on the embodiments of the present invention.

[0023] As shown in Figure 1(a) to Figure 3 As shown, the tilting device of the shaft protection equipment includes, The vertical shaft civil engineering structure 8 is a vertical hollow structure with a rectangular opening; Door 10, which is openable and closable within the hollow structure; A door hinge 9 is rotatably disposed on one side of the door body 10 and fixedly connected to the door body 10. The door body 10 is fixedly connected to the door hinge 9 and opens and closes as the door hinge 9 rotates. Gear 5, which is disposed on the door hinge 9 and the door hinge 9 rotates synchronously with gear 5; A rack 4 is disposed on one side of the gear 5 and meshes with the gear 5; The push-pull rod 6 has one end fixed to the side wall of the hollow structure and the other end retractably connected to the rack 4; A spring sleeve 2 is provided inside, with one end of the spring 3 abutting against the spring sleeve 2 and the other end connected to the rack 4. When the door 10 is closed, the spring 3 is in the maximum compression state.

[0024] In the aforementioned shaft protection equipment's flipping device, the installation space of the push-pull rod determines the distance from the door to the civil engineering structure.

[0025] This invention enables remote electric control and manual control in case of power failure to tilt a protective device weighing several tons up and down, thereby protecting the shaft opening, reducing the horizontal length of the air duct civil defense protection section, improving space resource utilization, reducing civil engineering investment, facilitating the layout of other professional civil engineering projects, and the tilting device has a simple structure and is easy to maintain during application.

[0026] In a preferred embodiment of the tilting device of the shaft protection equipment, an adjusting nut 1 for adjusting the compression state of the adjusting spring 3 is installed at the tail end of the spring sleeve 2.

[0027] In a preferred embodiment of the tilting device of the shaft protection equipment, the adjusting nut 1 is threadedly connected to the inner wall of the spring sleeve 2.

[0028] In a preferred embodiment of the tilting device of the shaft protection equipment, when the door 10 is tilted upwards and opened, the spring 3 is released from the maximum compression state to the free state.

[0029] In a preferred embodiment of the tilting device of the shaft protection equipment, the push-pull rod 6 is driven by a motor 7.

[0030] In a preferred embodiment of the tilting device of the shaft protection equipment, the inner wall of the hollow structure is provided with a pair of horizontally extending protrusions facing each other, and the door 10 is supported on the protrusions in an openable and closable manner.

[0031] In one embodiment, the rack is kept horizontal.

[0032] In one embodiment, the protective device door hinge 9 is fixed to the door body 10 on one side, meaning the door body 10 can rotate up and down with the rotation of the door hinge 9; a gear 5 is installed at one end of the door hinge 9, allowing the door hinge 9 to rotate synchronously with the gear 5; a rack 4 is provided on the upper side of the gear 5, meshing with the gear 5; a spring is placed in a spring sleeve 2; an adjusting nut 1 is installed at the tail end of the sleeve, allowing the spring's state to be adjusted by adjusting the nut 1; a manual electric push-pull rod 6 is fixed to the vertical shaft civil structure 8, and the extension and retraction of the push-pull rod 6 is driven by a motor 7; one end of the rack 4 is connected to the spring, and the other end is connected to the manual electric push-pull rod 6. The push-pull rod 6 extends and retracts, driving the rack 4 to move. The rack 4 drives the gear 5 and the door hinge 9 to rotate synchronously, realizing the flipping of the door 10. During the downward flipping of the door 10, the spring 3 is gradually compressed and stores force. When the door 10 is closed, the spring 3 is compressed to its maximum extent, which at the same time offsets most of the weight of the door 10. When the door 10 flips upward and opens, the driving force of the push-pull rod 6 can be greatly reduced. Due to the significant reduction in driving force, manual control can be achieved by rotating the output shaft of the motor 7 in the event of a power outage.

[0033] The following is illustrated by Figure 1(a) to Figure 3 To explain in more detail: In one embodiment, the vertical shaft civil structure 8 and protective equipment are installed in the vertical shaft protection section. In Figures 1(a) and 1(b), the door 10 flips upward to open and downward to close; the opening of the vertical shaft civil structure 8 is rectangular; the weight of the door 10 is related to the size of the opening of the vertical shaft civil structure 8, generally 4-5 tons, and the size of the rectangular opening is determined according to the actual engineering situation. It should be noted that Figures 1(a) and 1(b) show the single-leaf door configuration. The size of the door 10 is affected by the size of the vertical shaft opening. As the size increases, the weight of the door 10 increases accordingly. However, this invention needs to consider a safety margin, so the weight of the door 10 should not be too large. Therefore, the weight of a single door is about 4 tons. More preferably, the weight of a single door should not exceed 4 tons. Any door weighing less than 4 tons has a definite size and needs to be adapted to the opening size. Furthermore, when double-leaf doors are involved, not only is an additional door and a complete set of tilting devices required, but it is also preferable to arrange the double-leaf doors symmetrically along the central axis of the shaft structure. Taking all factors into consideration, based on the shaft opening size and the weight of a single door, the choice between a single or double door, and the door's dimensions, will be determined.

[0034] In Figures 2(a) and 2(b), spring 3 is constantly in a state of changing compression during opening and closing. It reaches its maximum compression value after closing completely. The initial compression state of spring 3 can be adjusted by adjusting nut 1, the specific value of which needs to be calculated based on the weight of the door. It should be noted that Figures 2(a) and 2(b) illustrate the state of the flipping device in the closed and open states of the door. For ease of explanation, scale markings are made on the gear. After repeated design modifications and verifications, the length difference of the spring, the displacement of the rack, and the length difference of the extended push-pull rod are equal in both the closed and open states, and each is approximately one-quarter of the gear's circumference.

[0035] exist Figure 3 In the middle, the protective equipment door hinge 9 is on one side of the door body 10 and is fixed to the door body 10, that is, the door body 10 can rotate up and down with the rotation of the door hinge 9; a gear 5 is installed at one end of the door hinge 9, and the door hinge 9 can rotate synchronously with the gear 5; a rack 4 is set on the upper side of the gear 5 and meshes with the gear 5; the spring 3 is placed in the spring sleeve 2; an adjusting nut 1 is installed at the tail end of the spring sleeve 2, and the state of the spring 3 can be adjusted by adjusting the adjusting nut 1; the push-pull rod 6 is fixed on the vertical shaft civil structure 8, and the extension and retraction of the push-pull rod 6 is driven by the motor 7; one end of the rack 4 is connected to the spring 3, and the other end is connected to the push-pull rod 6.

[0036] Therefore, the present invention also discloses a method for overturning a vertical shaft protection device, comprising the following steps: S100. A vertical shaft civil engineering structure is provided, which is a vertical hollow structure with a rectangular opening. S200. Arrange the door body, and ensure that the weight and size of the door body are compatible with the rectangular opening; S300. A door hinge is rotatably provided, which is rotatably provided on one side of the door body and fixedly connected to the door body. The door body is fixedly connected to the door hinge, and as the door hinge rotates, the door body can flip up and down to realize that the door body is openable and closable in the hollow structure. S400. A gear is provided, which is located on the door hinge and the door hinge rotates synchronously with the gear; S500, A rack is provided, which is located on one side of the gear and meshes with the gear; S600. A push-pull rod is provided, one end of which is fixed to the side wall of the hollow structure, and the other end is telescopically connected to the rack. S700, a spring sleeve containing a spring, one end of which abuts against the spring sleeve and the other end of which is connected to the rack. When the door is closed, the spring is in a state of maximum compression, and when the door is open, the spring is in a state of freedom.

[0037] It should be noted that the selection of spring specifications in this invention is based on clear criteria and is related to the weight of the door in actual application. The selection principle is that the spring must not only counteract most of the weight of the door, but also allow for manual opening and closing operations even in the event of a power outage. The selection of gear and rack specifications is also based on clear criteria. In this invention, they are also related to the weight of the door. The selection principle is that not only should the strength of the gear selection be verified based on the weight of the door, but the rack selection must also ensure that it can mesh with the gear for transmission and meet the required opening and closing stroke. Yes, motor selection is required. It must be based on the determination of the door weight and spring selection. Specifically: when the door weight and spring selection are determined under power-on conditions, the range of driving force can be calculated, thereby determining the motor selection. As for determining the distance between the door and the civil structure, this distance is related to the stroke of the push-pull rod when opening and closing the door and the installation space of the push-pull rod. Only after the gear selection is determined can the stroke be determined, and the push-pull rod selection can be further determined based on the stroke. At the same time, the installation space of the push-pull rod can be obtained, thereby determining the distance between the door and the civil structure.

[0038] Although embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments and application fields described above. The specific embodiments described above are merely illustrative and instructive, and not restrictive. Those skilled in the art can make many other forms based on the guidance of this specification and without departing from the scope of protection of the claims of the present invention, and all of these are within the scope of protection of the present invention.

Claims

1. A method for vertically rotating a shaft protection device, characterized in that: The method is based on a tilting device for shaft protection equipment. The method includes the following steps: S100. A vertical shaft civil engineering structure is provided, which is a vertical hollow structure with a rectangular opening. S200. Arrange the door body, and ensure that the weight and size of the door body are compatible with the rectangular opening; S300. A door hinge is rotatably provided, which is rotatably provided on one side of the door body and fixedly connected to the door body. The door body is fixedly connected to the door hinge, and as the door hinge rotates, the door body can flip up and down to realize that the door body is openable and closable in the hollow structure. S400. A gear is provided, which is located on the door hinge and the door hinge rotates synchronously with the gear; S500, A rack is provided, which is located on one side of the gear and meshes with the gear; S600. A push-pull rod is provided, one end of which is fixed to the side wall of the hollow structure, and the other end is telescopically connected to the rack. S700, a spring sleeve containing a spring, one end of which abuts against the spring sleeve and the other end of which is connected to the rack. When the door is closed, the spring is in a state of maximum compression, and when the door is open, the spring is in a state of freedom. in, The principle for selecting springs is that the springs should not only counteract most of the weight of the door, but also allow for manual opening and closing of the door in the event of a power outage. The protective equipment door hinge is located on one side of the door body and is fixed to it, allowing the door body to rotate up and down as the hinge rotates. A gear is installed at one end of the door hinge, enabling the door hinge to rotate synchronously with the gear. A rack is installed on the upper side of the gear and meshes with it. A spring is placed in a spring sleeve. An adjusting nut is installed at the tail end of the spring sleeve, allowing the spring's state to be adjusted. A manual / electric push-pull rod is fixed to the vertical shaft structure, and its extension and retraction are driven by a motor. One end of the rack is connected to the spring, and the other end is connected to the manual / electric push-pull rod. The manual push-pull lever extends and retracts, driving the rack to move. The rack drives the gears and the door hinges of the protective device to rotate synchronously, enabling the door to flip. During the door's downward movement, the spring gradually compresses and stores force. When the door is closed, the spring is compressed to its maximum extent, simultaneously offsetting most of the door's weight. When the door flips upward, the driving force of the manual push-pull lever is greatly reduced. Due to the significant reduction in driving force, manual control can be achieved by rotating the motor output shaft in the event of a power outage. The aforementioned flipping device enables remote electric control and manual control in case of power failure to flip several tons of protective equipment up and down, thereby achieving protection of the shaft opening, reducing the horizontal length of the air duct civil defense protection section, improving space resource utilization, reducing civil engineering investment, and facilitating the layout of other professional civil engineering projects. The flipping device has a simple structure and is easy to maintain during application.

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