Manned device for confined spaces

Abstract

The embodiment of the present application provides a manned device for a limited space, and belongs to the technical field of bearing devices. The device comprises a support frame, a working end of the support frame is located in the internal space of a container through a manhole of the container, a mounting end of the support frame is located outside the container, the support frame is detachably connected with the container through a mounting mechanism, a bearing mechanism is used for bearing an overhauling personnel, the bearing mechanism is detachably arranged on the support frame through a connecting mechanism and can move along the length direction of the support frame through the connecting mechanism, and a limiting mechanism is arranged on the bearing mechanism and is used for avoiding the overhauling personnel from falling off the bearing mechanism. The present scheme has the advantages of simple structure, convenient use, improved safety during entering the container and during the overhauling process after entering the container, and improved overhauling efficiency.

Description

Technical Field

[0001] This invention relates to the field of carrying device technology, and more specifically to a manned device for confined spaces. Background Technology

[0002] Containers have extremely wide applications, widely used in many sectors including industry, civil engineering, military, and scientific research. A large number of containers, including pressure vessels and atmospheric pressure vessels, exist in industries such as chemical, petroleum, natural gas, food, pharmaceutical, and nuclear power. The working media in these containers are diverse, mostly consisting of toxic, flammable, explosive, and corrosive hazardous chemicals, such as spherical storage tanks, horizontal storage tanks, various heat exchangers, synthesis towers, reactors, dryers, separators, shell-and-tube waste heat boilers, and manned containers (such as medical oxygen chambers). Pressure vessels require regular inspections, and during operation, they may experience cracks, corrosion, erosion, and other damage, necessitating maintenance. When personnel enter confined spaces through manholes on containers, the environment is often harsh, the manhole dimensions are relatively small, and entry and exit are time-consuming and laborious. Furthermore, due to the varying internal components of different containers, personnel may lack footholds, posing a significant safety hazard.

[0003] When personnel enter the container for maintenance through manholes, they can either directly enter through the manhole, be hoisted in using a manual hoist or safety rope, or use a ladder after it has been lowered into the container. For horizontal manholes, personnel can climb directly into the container, but once inside, limited space hinders rapid maintenance and reduces safety. Summary of the Invention

[0004] The purpose of this invention is to provide a manned device for confined spaces, in order to solve the aforementioned problems of limited space, which prevent rapid maintenance and result in low safety.

[0005] To achieve the above objectives, embodiments of the present invention provide a manned device for confined spaces, the device comprising: A support frame, wherein the working end of the support frame passes through the manhole of the container and is located in the internal space of the container, and the mounting end of the support frame is located outside the container, and the support frame is detachably connected to the container through a mounting mechanism; A support mechanism for supporting maintenance personnel is provided. The support mechanism is detachably mounted on the support frame via a connecting mechanism and can move along the length of the support frame via the connecting mechanism. A limiting mechanism is provided on the supporting mechanism to prevent maintenance personnel from falling off the supporting mechanism.

[0006] Optionally, the mounting mechanism includes; A first limiting stop and a second limiting stop are spaced apart at the mounting end of the support frame, and there is a receiving space between the first limiting stop and the second limiting stop; A connecting rod is rotatably mounted at the mounting end of the support frame; when the connecting rod is in the retracted state, it is located in the receiving space and in contact with the lower surface of the support frame; when the connecting rod is in the extended state, it is in contact with the second limiting baffle and the outer wall of the container, and the side wall of the container is located in the receiving space.

[0007] Optionally, the outer wall of the container is provided with multiple flange holes; The connecting rod has multiple mounting holes arranged sequentially. The mounting holes and the corresponding flange holes are connected by bolts, thereby fixing the connecting rod to the container.

[0008] Optionally, the support frame is provided with slot guide rails, each slot guide rail having an internal space; The connecting mechanism includes: Multiple rollers are spaced apart and arranged opposite each other on the bearing mechanism. The rollers are located in the internal space of the corresponding slot guide rail and can move along the slot guide rail.

[0009] Optionally, the limiting mechanism includes: The first connecting belt and the second connecting belt are arranged opposite to each other. The fixed ends of the first connecting belt and the second connecting belt are respectively connected to the bearing mechanism. The movable ends of the first connecting belt and the second connecting belt are detachably connected to each other by a fastener.

[0010] Optionally, the device further includes: A lifting support mechanism is rotatably mounted at the working end of the support frame to support the support frame.

[0011] Optionally, a U-shaped limiting sleeve is provided on the lower surface of the working end of the support frame, and a first positioning hole is provided on the two side walls of the U-shaped limiting sleeve. The lifting support mechanism includes: A lifting rod is rotatably connected to the support frame, and the top end of the lifting rod is located inside the U-shaped limiting sleeve. The top end of the lifting rod is provided with a second positioning hole. When the lifting rod is in the retracted state, it contacts the lower surface of the support frame. When the lifting rod is in the working state, the first positioning hole and the second positioning hole are aligned with each other, and the lifting rod and the support frame are fixed together by a positioning pin passing through the first positioning hole and the second positioning hole. A support pad is rotatably mounted at the bottom end of the lifting rod.

[0012] Optionally, the device further includes: The lighting device is detachably mounted on the working end of the support frame via an angle adjustment mechanism for providing illumination during operation.

[0013] Optionally, the device further includes: Multiple hanging rods are spaced apart on the support frame for suspending work tools.

[0014] Optionally, the device further includes: a gas delivery mechanism, disposed on the support frame, for delivering gas into the container; the gas delivery mechanism includes: An air supply pipe is fixedly installed on the support frame. The gas outlet of the air supply pipe is located at the working end of the support frame, and the gas inlet of the air supply pipe is located at the installation end of the support frame. The gas inlet of the air supply pipe is connected to a blower.

[0015] In this solution, the support frame is first installed in place, and then the maintenance personnel are transported into the container through the carrying mechanism. At the same time, a limiting mechanism is set up to effectively prevent maintenance personnel from falling from the carrying mechanism. The structure is simple and easy to use, which can improve the safety during the process of entering the container and the maintenance process after entering the container, and at the same time improve the maintenance efficiency.

[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view of the manned device for confined spaces provided by the present invention; Figure 2 This is a side view of the manned device for confined spaces provided by the present invention; Figure 3 This is a schematic diagram of the structure of the manned device and container for confined spaces provided by the present invention after installation; Figure 4 This is a partial structural schematic diagram of the lifting support mechanism provided by the present invention.

[0018] Explanation of reference numerals in the attached figures 1-Container; 2-Supporting frame; 3-Installation mechanism; 4-Bearing mechanism; 5-Connecting mechanism; 6-Limiting mechanism; 7-Lifting support mechanism; 8-Lighting device; 9-Air supply mechanism; 11-Manhole; 12-Flange hole; 13-Bolt; 21-Slot guide rail; 22-U-shaped limiting sleeve; 23-Hanging rod; 31-First limiting baffle; 32-Second limiting baffle; 33-Connecting rod; 61-First connecting belt; 62-Second connecting belt; 63-Fastener; 71-Lifting rod; 72-Positioning pin; 73-Support pad; 81-Angle adjustment mechanism; 91-Air supply pipe; 92-Blower; 221-First positioning hole; 331-Installation hole; 711-Second positioning hole. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0020] In the embodiments of the present invention, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use.

[0021] The terms “first,” “second,” “third,” etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0022] The terms "parallel" and "perpendicular" do not mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that its direction is more parallel than "perpendicular," not that the structure must be completely parallel, but that it can be slightly tilted.

[0023] The terms "horizontal," "vertical," and "sag" do not imply that a component must be absolutely horizontal, vertical, or sagging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] Furthermore, terms like "roughly" and "basically" are used to indicate that the content does not require absolute precision, but rather allows for a certain degree of deviation. For example, "roughly equal" does not simply mean absolute equality; in actual production and operation, achieving absolute "equality" is difficult, and a certain degree of deviation is generally present. Therefore, besides absolute equality, "roughly equal to" also includes the aforementioned situation where a certain degree of deviation exists. Using this as an example, in other cases, unless otherwise specified, terms like "roughly" and "basically" have similar meanings.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Figure 1 This is a front view of the manned device for confined spaces provided by the present invention; Figure 2 This is a side view of the manned device for confined spaces provided by the present invention; Figure 3 This is a schematic diagram of the structure of the manned device and container for confined spaces provided by the present invention after installation; Figure 4 This is a partial structural schematic diagram of the lifting support mechanism provided by the present invention.

[0027] like Figure 1 and Figure 2 As shown, this embodiment provides a manned device for confined spaces, the device comprising: The supporting frame 2 has its working end passing through the manhole 11 of the container 1 and located in the internal space of the container 1, while its mounting end is located outside the container 1. The supporting frame 2 is detachably connected to the container 1 via the mounting mechanism 3. The bearing mechanism 4 is used to support maintenance personnel. The bearing mechanism 4 is detachably mounted on the support frame 2 via the connecting mechanism 5 and can move along the length of the support frame 2 via the connecting mechanism 5. A limiting mechanism 6 is provided on the bearing mechanism 4 to prevent maintenance personnel from falling off the bearing mechanism 4.

[0028] Specifically, for container 1 with a small internal space, maintenance personnel cannot stand inside container 1. Therefore, it is inconvenient for maintenance personnel to operate when performing maintenance inside container 1. Therefore, this solution discloses a personnel carrying device for confined spaces. In use, firstly, the manhole of container 1 is opened, and the working end of the support frame 2 is inserted into the internal space of container 1 through the manhole 11 of container 1. The mounting end of the support frame 2 is located outside container 1 and connected to container 1 through the mounting mechanism 3. Then, the maintenance personnel lie flat on the carrying mechanism 4. External force is applied to the carrying mechanism 4 by personnel outside container 1 or by the maintenance personnel themselves, causing the carrying mechanism 4 to move into container 1 on the support frame 2, sending the maintenance personnel on the carrying mechanism 4 into container 1. The maintenance personnel can lie flat or sit on the carrying mechanism 4 to perform maintenance inside container 1, thereby improving maintenance efficiency. Secondly, in order to ensure the safety of maintenance personnel, a limiting mechanism 6 is set on the carrying mechanism 4 to prevent maintenance personnel from falling off the carrying mechanism 4, thereby improving safety.

[0029] More specifically, when the manhole 11 is square, the corresponding support frame 2 and load-bearing mechanism 4 are also square; when the manhole 11 is circular, the corresponding support frame 2 and load-bearing mechanism 4 are arc-shaped. Furthermore, the support frame 2 adopts a frame structure, consisting of multiple horizontal and vertical bars connected together, giving the support frame 2 a certain structural strength to support maintenance personnel. The load-bearing mechanism 4 can also adopt a frame structure, or in addition to a frame structure, a cover plate can be installed on the surface of the frame structure to facilitate maintenance personnel sitting or lying on the load-bearing mechanism 4.

[0030] In another embodiment, the connecting mechanism 5 includes multiple rollers. The bearing mechanism 4 is divided into a multi-segment structure, with at least one pair of rollers provided on each segment of the bearing mechanism 4, and adjacent segments of the bearing mechanism 4 are connected to each other by hinges, thereby reducing the overall rigidity.

[0031] In one embodiment, the mounting mechanism 3 includes; The first limiting baffle 31 and the second limiting baffle 32 are spaced apart at the mounting end of the support frame 2, and there is a receiving space between the first limiting baffle 31 and the second limiting baffle 32; The connecting rod 33 is rotatably mounted at the mounting end of the support frame 2. When the connecting rod 33 is in the retracted state, it is located in the receiving space and in contact with the lower surface of the support frame 2. When the connecting rod 33 is in the extended state, it is in contact with the second limiting baffle 32 and the outer wall of the container 1. The side wall of the container 1 is located in the receiving space.

[0032] Specifically, in order to protect the outer wall of container 1, a flange is usually installed at the manhole 11 of container 1, and the manhole 11 is opened and closed by the flange and the corresponding cover. After the working end of the support frame 2 passes through the manhole 11 of the container 1, the support frame 2 is supported on the manhole 11. In order to limit the position of the support frame 2, a first limiting baffle 31 and a second limiting baffle 32 are provided at intervals at the mounting end of the support frame 2. There is a receiving space between the first limiting baffle 31 and the second limiting baffle 32, so that the container 1 and the flange corresponding to the manhole 11 are located in the receiving space. In addition, in order to prevent the support frame 2 from detaching, a connecting rod 33 is rotatably provided at the mounting end of the support frame 2. When the connecting rod 33 is in the retracted state, it is located in the receiving space and in contact with the lower surface of the support frame 2. When the connecting rod 33 is in the extended state, it is in contact with the second limiting baffle 32 and the outer wall of the container 1. The support frame 2 is limited by the interlocking of the first limiting baffle 31 with the inner wall of the container 1 and the connecting rod 33 with the flange provided at the manhole 11 of the container 1.

[0033] In another embodiment, the first limiting baffle 31 and the second limiting baffle 32 are L-shaped baffles, and the first limiting baffle 31 and the second limiting baffle 32 are provided with reinforcing ribs to improve the overall structural strength.

[0034] In one implementation, such as Figure 3 As shown, in order to protect the outer wall of container 1, a flange is usually installed at the manhole 11 of container 1. The manhole 11 is opened and closed by the flange and the corresponding cover. Therefore, multiple flange holes 12 are provided on the outer wall of container 1 (i.e., on the flange). Multiple mounting holes 331 are sequentially provided on the connecting rod 33. The mounting holes 331 and the corresponding flange holes 12 are connected by bolts 13 to fix the connecting rod 33 to container 1.

[0035] Specifically, in order to ensure that the installation mechanism 3 can be fixedly connected to the container 1, a plurality of mounting holes 331 are sequentially provided on the connecting rod 33. The connecting rod 33 is fixed to the container 1 by passing the bolt 13 through the corresponding mounting hole 331 and the corresponding flange hole 12. This can not only adapt to different types of flanges, but also ensure the stability of the connection.

[0036] In one implementation, such as Figure 2 As shown, the support frame 2 is provided with slot guide rails 21 opposite to each other, and each slot guide rail 21 has an internal space; The connecting mechanism 5 includes: Multiple rollers are spaced apart and arranged opposite each other on the bearing mechanism 4. The rollers are located in the internal space of the corresponding slot guide rail 21 and can move along the slot guide rail 21.

[0037] Specifically, to ensure a stable connection between the bearing mechanism 4 and the support frame 2, and to allow the bearing mechanism 4 to move relative to the support frame 2, a connecting mechanism 5 is used as a medium to connect the bearing mechanism 4 and the support frame 2. Therefore, two slotted guide rails 21 are arranged opposite each other on the support frame 2. Each slotted guide rail 21 has an internal space. The connecting mechanism 5 is configured as multiple rollers, spaced apart and opposite to each other on both sides of the bearing mechanism 4. The rollers are located within the internal space of the corresponding slotted guide rail 21. The slotted guide rails 21 limit the movement of the rollers, while also allowing the rollers to move along the slotted guide rails 21 within their internal spaces. By applying external force to the bearing mechanism 4, the position of the bearing mechanism 4 relative to the support frame 2 can be adjusted, thereby adjusting the maintenance position. More specifically, to ensure safety, both ends of the slot guide rail 21 are set to be closed to prevent the support frame 2 from detaching from the slot guide rail 21 and improve operational safety; or, the end of the slot guide rail 21 located at the working end of the support frame 2 is set to be closed, and the end of the slot guide rail 21 located at the installation end of the support frame 2 is set to be open, so as to facilitate disassembly.

[0038] In one implementation, such as Figure 2 As shown, the limiting mechanism 6 includes: a first connecting belt 61 and a second connecting belt 62 arranged opposite to each other. The fixed ends of the first connecting belt 61 and the second connecting belt 62 are respectively connected to the bearing mechanism 4. The movable ends of the first connecting belt 61 and the second connecting belt 62 are detachably connected to each other by a buckle 63.

[0039] Specifically, to prevent maintenance personnel from falling off the support mechanism 4 and to improve safety during maintenance, the limiting mechanism 6 is configured to include a first connecting belt 61 and a second connecting belt 62 arranged opposite to each other. The fixed ends of the first connecting belt 61 and the second connecting belt 62 are respectively connected to the support mechanism 4, and the movable ends of the first connecting belt 61 and the second connecting belt 62 are detachably connected to each other by a buckle 63, thereby forming a protective space on the support mechanism 4. The maintenance personnel are located in the protective space, effectively preventing the maintenance personnel from falling off the support mechanism 4.

[0040] In one implementation, such as Figure 3 and Figure 4As shown, the device further includes a lifting support mechanism 7, detachably mounted on the working end of the support frame 2, for supporting the support frame 2. Specifically, after the support frame 2 is connected to the container 1 via the installation mechanism 3, only one end of the support frame 2 is fixed. To ensure the stability of the support frame 2 installation and to avoid excessive force on a single point, which could damage the container 1, the lifting support mechanism 7 is rotatably mounted on the working end of the support frame 2. By adjusting the height of the lifting support mechanism 7, the support frame 2 is kept horizontal, thereby ensuring that both ends of the support frame 2 are fixed, guaranteeing stability, improving the safety of operators, and preventing uneven force distribution at the manhole 11 of the container 1, thus ensuring the service life of the container 1.

[0041] In addition, in order to reduce the volume of the support frame 2 and the lifting support mechanism 7 and facilitate the movement of the personnel-carrying device, the lifting support mechanism 7 is detachably installed at the working end of the support frame 2. During transportation and storage, the lifting support mechanism 7 is retracted to reduce the overall volume. During the load-bearing process, the lifting support mechanism 7 is extended to provide support for the support frame 2.

[0042] In one implementation, such as Figure 4 As shown, a U-shaped limiting sleeve 22 is provided on the lower surface of the working end of the support frame 2, and a first positioning hole 221 is provided on the two side walls of the U-shaped limiting sleeve 22. The lifting support mechanism 7 includes: The lifting rod 71 is rotatably connected to the support frame 2, and the top end of the lifting rod 71 is located inside the U-shaped limiting sleeve 22. The top end of the lifting rod 71 is provided with a second positioning hole 711. When the lifting rod 71 is in the retracted state, it contacts the lower surface of the support frame 2. When the lifting rod 71 is in the working state, the first positioning hole 221 and the second positioning hole 711 are aligned with each other, and the lifting rod 71 and the support frame 2 are fixed together by a positioning pin 72 passing through the first positioning hole 221 and the second positioning hole 711. The support pad 73 is rotatably mounted at the bottom end of the lifting rod 71.

[0043] Specifically, firstly, the top end of the lifting rod 71 is rotatably connected to the support frame 2 via a pin or similar means, so that when the lifting rod 71 is in the retracted state, it contacts the lower surface of the support frame 2, achieving the storage of the lifting rod 71. At this time, the limiting mechanism 6 is also used to limit the lifting rod 71 to the lower surface of the support frame 2. When the lifting rod 71 is in the working state, the lifting rod 71 is released, making the lifting rod 71 perpendicular to the support frame 2. Simultaneously, since the top end of the lifting rod 71 is rotatably connected to the support frame 2, to avoid [further issues during inspection]... During repair, swaying occurs. A U-shaped limiting sleeve 22 is provided on the lower surface of the working end of the support frame 2. The two side walls of the U-shaped limiting sleeve 22 have opposing first positioning holes 221, and the top of the lifting rod 71 has a second positioning hole 711. When the lifting rod 71 is extended and perpendicular to the support frame 2, the first positioning hole 221 and the second positioning hole 711 align. A positioning pin 72 passes through the first positioning hole 221 and the second positioning hole 711 to fix the lifting rod 71 to the support frame 2, effectively preventing swaying. When it is necessary to retract the lifting rod 71, the positioning pin 72 is pulled out, allowing the lifting rod 71 to rotate and retract. Furthermore, to reduce the pressure of the lifting rod 71 on the bottom of the container 1, a rotatable support pad 73 is provided at the bottom of the lifting rod 71, thereby dispersing the pressure and protecting the container.

[0044] More specifically, the lifting rod 71 can be an electric cylinder, a pneumatic cylinder, a lead screw mechanism, etc. Alternatively, the lifting rod 71 can also employ a sleeve and barrel structure, with the barrel hollow inside. The top of the sleeve is inserted into the barrel, and both the sleeve and barrel have spaced-apart holes. By adjusting the extension length of the sleeve relative to the barrel, the lifting height of the lifting rod 71 can be adjusted. When the height is adjusted to the desired level, a pin is inserted into the hole to fix the sleeve and barrel. The lifting rod 71 can also employ a threaded rod and threaded barrel structure. The outer surface of the threaded rod has external threads, and the inner surface of the threaded barrel has internal threads. The threaded rod and threaded barrel are connected by threads, and by rotating the threaded rod, the extension length of the threaded rod relative to the threaded barrel can be adjusted, thereby adjusting the lifting height of the lifting rod 71.

[0045] In one implementation, such as Figure 3 As shown, the device also includes a lighting device 8, which is detachably mounted on the working end of the support frame 2 via an angle adjustment mechanism 81, for providing illumination during operation.

[0046] Specifically, the lighting device 8 can be a flashlight, a lamp, etc., and the angle adjustment mechanism 81 uses a universal clamp. The angle adjustment mechanism 81 can be connected and fixed to the support frame using clamps, magnetic chucks, etc. For example, when the lighting device 8 is a flashlight, the angle adjustment mechanism 81 can specifically use a strong magnetic universal flashlight clamp, which can ensure both the adjustment of the lighting angle and the adjustment of the installation position. When the lighting device 8 is a lamp, power is supplied to the lighting device 8 through a conductive cable connected from outside the container 1.

[0047] In one implementation, such as Figure 3 As shown, the device also includes multiple hanging rods 23, spaced apart on the support frame 2, for suspending work tools. Specifically, the hanging rods 23 adopt an L-shaped structure, and multiple hanging rods 23 are spaced apart on the side of the guide rail of the support frame 2, so as to facilitate the suspension of work tools when personnel inspect the inside of the container 1, thereby improving convenience.

[0048] In one implementation, such as Figure 3 As shown, the device further includes: an air supply mechanism 9, disposed on the support frame 2, for supplying air into the container 1; the air supply mechanism 9 includes: An air supply pipe 91 is fixedly installed on the support frame 2. The gas outlet of the air supply pipe 91 is located at the working end of the support frame 2, and the gas inlet of the air supply pipe 91 is located at the installation end of the support frame 2. The gas inlet of the air supply pipe 91 is connected to the blower 92.

[0049] Specifically, the air supply pipe 91 is installed on the top surface of the guide rail of the support frame 2, and can be detachably connected using methods such as snap-fit. The air supply pipe 91 is installed on the support frame 2 only after the support frame 2 is in place. Furthermore, the gas outlet of the air supply pipe 91 is located at the working end of the support frame 2, and the gas inlet of the air supply pipe 91 is located at the installation end of the support frame 2. The blower 92 is located outside the container 1, and the gas inlet of the air supply pipe 91 is connected to the blower 92. When the blower 92 is working, air is supplied to the inside of the container 1 through the air supply pipe 91 to ensure that the inside of the container 1 is filled with fresh air, achieving gas flow and improving the safety of maintenance personnel inside the container 1.

[0050] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention.

[0051] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not describe the various possible combinations separately.

[0052] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a microcontroller, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0053] Furthermore, various different implementations of the present invention can be combined arbitrarily, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed in the present invention.

Claims

1. A manned device for confined spaces, characterized in that, The device includes: The working end of the support frame (2) passes through the manhole (11) of the container (1) and is located in the internal space of the container (1). The mounting end of the support frame (2) is located outside the container (1). The support frame (2) is detachably connected to the container (1) through the mounting mechanism (3). The bearing mechanism (4) is used to carry maintenance personnel. The bearing mechanism (4) is detachably mounted on the support frame (2) through the connecting mechanism (5) and can move along the length direction of the support frame (2) through the connecting mechanism (5). A limiting mechanism (6) is provided on the bearing mechanism (4) to prevent maintenance personnel from falling off the bearing mechanism (4).

2. The manned device for confined spaces according to claim 1, characterized in that, The installation mechanism (3) includes; The first limiting baffle (31) and the second limiting baffle (32) are spaced apart at the mounting end of the support frame (2), and there is a receiving space between the first limiting baffle (31) and the second limiting baffle (32); A connecting rod (33) is rotatably mounted on the mounting end of the support frame (2). When the connecting rod (33) is in the retracted state, it is located in the receiving space and in contact with the lower surface of the support frame (2). When the connecting rod (33) is in the extended state, it is in contact with the second limiting baffle (32) and the outer wall of the container (1), and the side wall of the container (1) is located in the receiving space.

3. The manned device for confined spaces according to claim 2, characterized in that, The outer wall of the container (1) is provided with a plurality of flange holes (12); The connecting rod (33) is provided with a plurality of mounting holes (331) in sequence. The mounting holes (331) and the corresponding flange holes (12) are connected by bolts (13), thereby fixing the connecting rod (33) to the container (1).

4. The manned device for confined spaces according to claim 1, characterized in that, The support frame (2) is provided with slot guide rails (21) opposite to each other, and each slot guide rail (21) has an internal space; The connecting mechanism (5) includes: Multiple rollers are spaced apart and arranged relative to each other on the bearing mechanism (4). The rollers are located in the internal space of the corresponding slot guide rail (21) and can move along the slot guide rail (21).

5. The manned device for confined spaces according to claim 1, characterized in that, The limiting mechanism (6) includes: The first connecting strip (61) and the second connecting strip (62) are arranged opposite to each other. The fixed end of the first connecting strip (61) and the fixed end of the second connecting strip (62) are respectively connected to the bearing mechanism (4). The movable end of the first connecting strip (61) and the movable end of the second connecting strip (62) are detachably connected to each other by a fastener (63).

6. The manned device for confined spaces according to claim 1, characterized in that, The device further includes: The lifting support mechanism (7) is rotatably mounted on the working end of the support frame (2) and is used to support the support frame (2).

7. The manned device for confined spaces according to claim 6, characterized in that, The lower surface of the working end of the support frame (2) is provided with a U-shaped limiting sleeve (22), and the two side walls of the U-shaped limiting sleeve (22) are provided with first positioning holes (221) respectively. The lifting support mechanism (7) includes: The lifting rod (71) is rotatably connected to the support frame (2), and the top end of the lifting rod (71) is located inside the U-shaped limiting sleeve (22). The top end of the lifting rod (71) is provided with a second positioning hole (711). When the lifting rod (71) is in the retracted state, it contacts the lower surface of the support frame (2). When the lifting rod (71) is in the working state, the first positioning hole (221) and the second positioning hole (711) are aligned with each other. The lifting rod (71) and the support frame (2) are fixed to each other by a positioning pin (72) passing through the first positioning hole (221) and the second positioning hole (711). The support pad (73) is rotatably mounted at the bottom end of the lifting rod (71).

8. The manned device for confined spaces according to claim 1, characterized in that, The device further includes: The lighting device (8) is detachably mounted on the working end of the support frame (2) via an angle adjustment mechanism (81) for providing illumination during operation.

9. The manned device for confined spaces according to claim 1, characterized in that, The device further includes: Multiple hanging rods (23) are spaced apart on the support frame (2) for suspending work tools.

10. The manned device for confined spaces according to claim 1, characterized in that, The device further includes: an air supply mechanism (9), disposed on the support frame (2), for supplying air into the container (1); the air supply mechanism (9) includes: An air supply pipe (91) is fixedly installed on the support frame (2). The gas outlet of the air supply pipe (91) is located at the working end of the support frame (2), and the gas inlet of the air supply pipe (91) is located at the installation end of the support frame (2). The gas inlet of the air supply pipe (91) is connected to the blower (92).

Images