Hanging mast type fire safety lifting platform

Abstract

The invention discloses a hanging mast type fire safety lifting platform, and relates to the technical field of fire safety, the hanging mast type fire safety lifting platform comprises an outer frame, falling parts are arranged on the two sides of the interior of the outer frame, and the opposite vertical faces of the falling parts are connected with a manned platform; the falling part comprises side plate sets, and the multiple side plate sets are connected in a sliding mode to jointly form the falling part. The two chain wheel sets are installed on the opposite vertical faces of the two side plates. The multiple side plate sets are connected in a sliding mode to form a telescopic mast structure, the motor provides power for the chain wheel sets and drives the chain wheels to rotate, the power is transmitted to the chain wheels of the adjacent side plate sets from one chain wheel set through the meshing relation between the chain and the chain wheels, and the adjacent side plate sets generate relative sliding displacement; therefore, the transmission ratio is accurate, the bearing capacity is high, the transmission process is stable, the operation reliability of the device and the personnel safety guarantee are improved, and noise and pollution are avoided.

Description

Technical Field

[0001] This invention relates to the field of fire safety technology, specifically to a suspended mast type fire safety lifting platform. Background Technology

[0002] "Firefighting" is a general term encompassing the elimination of hidden dangers and the prevention of disasters (the prevention and resolution of man-made, natural, and accidental disasters encountered by people in their lives, work, and studies). Of course, in its early understanding, firefighting primarily meant extinguishing fires. It mainly includes personnel rescue at fire scenes, the salvage of important facilities, equipment, and cultural relics, the security and rescue of important property, and the extinguishing of fires. The aim is to reduce the extent of damage caused by fires and minimize casualties and property losses.

[0003] Among existing building fire safety escape equipment, traditional fire elevators, while crucial rescue facilities, generally rely on mains power. In the event of a fire and power outage, these elevators often cease operation due to power interruption, failing to guarantee the emergency evacuation needs of trapped personnel. Even when some fire elevators are equipped with backup power supplies, their emergency power supply capabilities are often limited to returning the car to the ground floor within a short time, making multiple round trips for escape difficult. Furthermore, issues such as substandard shaft dimensions and poor operational stability frequently arise during acceptance testing, further impacting the reliability of rescue operations.

[0004] Outdoor fire escape ladders are a common supplementary facility, but existing lifting equipment has several technical shortcomings in terms of operational performance. Most of these machines use traditional traction or wire rope drive methods, which are prone to noise pollution during operation. Furthermore, due to the lack of a stable guiding structure, they are prone to swaying back and forth and side to side during lifting, affecting passenger safety and comfort. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a suspended mast type fire safety lifting platform.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] Suspended mast type fire safety lifting platform, including:

[0008] The outer frame has drop-off components on both sides inside, and the opposite sides of the drop-off components are connected to a manned platform.

[0009] Drop-off items include:

[0010] The side plate assembly, with multiple side plate assemblies slidably connected together, forms the falling component;

[0011] The sprocket assembly consists of two sprocket assemblies mounted on opposite sides of the two side plates. In the vertical direction, the upper sprocket assembly and the lower sprocket assembly are symmetrically distributed with the center of the side plate as the center. In two adjacent side plate assemblies, the sprocket assemblies with the same sprocket spacing are driven by a chain.

[0012] The side panel assembly connected to the frame is equipped with a hydraulic telescopic rod in the middle, and the hydraulic telescopic rod is used to move the next side panel assembly downward.

[0013] Preferably, the sprocket set has two sprockets, and the spacing between the sprockets in the upper sprocket set is smaller than the spacing between the sprockets in the lower sprocket set.

[0014] Preferably, in adjacent side plate groups, the same sprocket is on the same horizontal plane in the vertical direction.

[0015] Preferably, the side plate assembly includes:

[0016] Three horizontal plates are arranged in parallel, and two parallel areas are formed between the three horizontal plates;

[0017] Two vertical plates are connected between the two adjacent horizontal plates, and the two vertical plates and the three horizontal plates form two C-shaped slots with opposite opening directions;

[0018] The three horizontal plates and two vertical plates together form a single side plate. The side plate group consists of two opposing side plates, and adjacent side plate groups are slidably connected through adjacent C-shaped slots.

[0019] Preferably, the sprocket assembly includes:

[0020] A rotating shaft is rotatably connected to the opposite side of the side plate, and a motor power source is externally connected to one end of the rotating shaft;

[0021] A sprocket, which is connected to the outer surface of the shaft.

[0022] Preferably, an installation ring is fixedly installed on the top of the outer frame for installing the outer frame on the roof platform.

[0023] Preferably, the plurality of said side plates are made of aluminum alloy.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. The motor provides power to the sprocket assembly, driving the sprockets to rotate. By utilizing the meshing relationship between the chain and the sprockets, power is transmitted from one set of sprockets to the sprockets of adjacent side plate assemblies, causing relative sliding displacement between the adjacent side plate assemblies. This achieves precise transmission ratio, strong load-bearing capacity, and stable transmission process, improving the reliability of the device operation and personnel safety, while being noiseless and pollution-free.

[0026] 2. Each side plate is composed of an integrated rigid frame consisting of "3 horizontal and 2 vertical" sections, and is designed with double-sided symmetry. When under stress, the load can be evenly distributed to both side plates, avoiding bending deformation caused by unilateral overload. At the same time, through the synchronous nesting and sliding of the upper and lower "double C-shaped slots", the displacement in other directions is restricted, and only the vertical displacement is retained, thereby avoiding displacement deviation.

[0027] 3. The hydraulic telescopic rod can provide greater thrust, assisting the lower side plate assembly to move downward, making the extension and retraction process of the falling parts smoother and more powerful, significantly improving the lifting efficiency of the manned platform, and facilitating rapid response to fire-fighting operations.

[0028] 4. Multiple side plates are slidably connected to form a retractable "mast" structure, and the side plates are made of aluminum alloy, which can withstand winds of up to level 7 and can operate normally even in heavy rain, thus improving the practicality of the device. Attached Figure Description

[0029] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention in its general state.

[0031] Figure 2 This is a three-dimensional structural diagram of the present invention in use;

[0032] Figure 3 This is a three-dimensional structural diagram of the falling part of the present invention;

[0033] Figure 4 This is a schematic diagram of the three-dimensional structure of the connection between the two sets of side plates of the falling component of the present invention;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of a single set of side plates of the present invention;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the back of the falling component of the present invention.

[0036] The diagram is labeled as follows: 1. Outer frame; 2. Lowering component; 21. Side plate assembly; 211. Horizontal plate; 212. Vertical plate; 22. Sprocket assembly; 221. Rotating shaft; 222. Sprocket gear; 23. Chain; 24. Hydraulic telescopic rod; 3. Personnel platform. Detailed Implementation

[0037] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0038] Example

[0039] like Figure 1-6 As shown, the suspended mast type fire safety lifting platform includes:

[0040] The outer frame 1 has drop members 2 on both sides inside, and the opposite sides of the drop members 2 are connected to the manned platform 3. The manned platform 3 is located between the drop members 2 on both sides. The outer frame 1 and the drop members 2 form a ring-shaped protection, which can block the impact of falling objects and protect the personnel inside the manned platform 3.

[0041] Dropper 2 includes:

[0042] Side plate assembly 21, which is composed of two opposing side plate assemblies 21;

[0043] Sprocket assembly 22, two sprocket assemblies 22 are installed on the opposite sides of two side plates. In the vertical direction, the upper sprocket assembly 22 and the lower sprocket assembly 22 are symmetrically distributed with the center of the side plate as the center. In two adjacent side plate assemblies 21, the sprocket assemblies 22 with the same sprocket spacing are driven by the chain 23.

[0044] Among them, the side plate group 21 connected to the frame is connected to a hydraulic telescopic rod 24 in the middle, and the hydraulic telescopic rod 24 is used to move the next side plate group 21 downward.

[0045] Specifically: When the device is not activated, all side panel groups 21 are slidably retracted into the inner side of the outer frame 1 through the nesting of C-shaped slots and adjacent side panel groups 21 are attached to each other. The manned platform 3 is fixed to the opposite facade of the "outermost side panel group 21". The whole is in a high position. This state reduces the space occupation when not in operation and can quickly respond to fire emergency needs.

[0046] When the device is started, firstly, the power system starts in tandem. On one hand, the motor of the sprocket assembly 22 is turned on, driving the shaft 221 on the first side plate assembly 21 of the "first-level side plate assembly 21" which is directly connected to the outer frame 1 to rotate. Since the sprocket assembly 22 of the first-level side plate assembly 21 and the adjacent sprocket assembly 22 of the "second-level side plate assembly 21" are at the same distance and connected by the chain 23, when the shaft 221 drives the sprocket 222 to rotate, the chain 23 will synchronously drive the sprocket 222 of the second-level side plate assembly 21 to rotate, providing vertical guidance for the movement of the second-level side plate assembly 21 and preventing it from shifting horizontally. On the other hand, the hydraulic telescopic rod 24 in the middle of the first-level side plate assembly 21 begins to extend, applying a stable downward thrust to the second-level side plate assembly 21. At this time, the second-level side plate assembly 21 slides stably in the vertical direction with the C-shaped slot of the first-level side plate assembly 21 through its own C-shaped slot, and slowly moves downward under the combined action of the thrust and the guidance of the chain 23.

[0047] If the rescue height is high, such as in a multi-story building, during the descent of the secondary side plate assembly 21, its own sprocket assembly 22 will drive the sprocket assembly 22 of the tertiary side plate assembly 21 to rotate synchronously via the chain 23. At the same time, the hydraulic telescopic rod 24 on the secondary side plate assembly 21 extends and pushes the tertiary side plate assembly 21 to move down along the slot, forming a multi-level linkage of "one level driving the next level". In this way, each level of the falling component 2 gradually extends outward, and the manned platform 3, because it is fixed to the outermost falling component 2, will move downward synchronously and horizontally with the extension of the falling component 2 until it reaches the floor where the trapped person is located or the designated rescue height. It can also be stopped and retracted through the settings of the controller and remote control. During the entire descent, the falling components 2 on both sides are symmetrically stressed. With the symmetrical design of the sprocket assembly 22, the manned platform 3 always remains horizontal and avoids tilting.

[0048] When the device is ready for retrieval, the power system first reverses, with the motor starting in reverse to rotate the shaft 221 of the first-stage side plate assembly 21 in reverse. This rotation is transmitted through the chain 23, causing the sprocket assembly 22 of the second-stage side plate assembly 21 to rotate in reverse, providing upward pulling force for the retrieval of the side plate assembly 21. Simultaneously, the hydraulic telescopic rod 24 on the first-stage side plate assembly 21 retracts, applying upward pulling force to the second-stage side plate assembly 21. With the cooperation of the pulling force and the guidance of the chain 23, the second-stage side plate assembly 21 slides upward along the C-shaped slot, gradually nesting back into the inner side of the first-stage side plate assembly 21. Subsequently, the motor and hydraulic telescopic rod 24 of the second-stage side plate assembly 21 also reverse, driving the third-stage side plate assembly 21 to retrieve upward. Each stage of the descending component 2 nests and retracts sequentially from the outermost to the innermost stage. The manned platform 3 moves upward synchronously with the outermost descending component 2. Finally, all descending components 2 are completely retracted inside the outer frame 1, and the manned platform 3 returns to its initial high position. The device completes its reset and awaits the next use.

[0049] In this embodiment: the sprocket group 22 is provided with two sprockets, and the spacing between the sprockets in the upper sprocket group 22 is smaller than the spacing between the sprockets in the lower sprocket group 22.

[0050] Specifically: The large spacing between the lower sprockets is equivalent to forming a "wide-spacing support point" on the outer side of the lowering component 2 near the end of the manned platform 3. When the platform is subjected to lateral force, the large-spacing sprocket group 22 can generate a larger reverse torque on the side plate group 21 through the chain 23, which counteracts the tendency to tilt, similar to the principle that "two-handed poles are more stable than one-handed poles". The small spacing between the upper sprockets, together with the fixed constraint of the outer frame 1, can form a "compact and stable fulcrum" on the inner side of the device, forming a "tight inside and wide outside" mechanical balance structure with the wide-spacing support on the lower side, further suppressing the overall tilt and ensuring that the manned platform 3 remains horizontal during the lifting process.

[0051] In this embodiment: in adjacent side plate groups 21, the same sprocket is on the same horizontal plane in the vertical direction.

[0052] Specifically: After the motor is started, the shaft 221 of the first-stage side plate assembly 21 drives the sprocket 222 to rotate. Since the "same sprocket and first-stage sprocket" of the adjacent second-stage side plate assembly 21 are on the same horizontal plane, the chain 23 always remains horizontal during the meshing process and will not generate "upward or downward component force" due to the height difference. At this time, the chain 23 only transmits "transmission torque in the vertical direction", accurately guiding the second-stage side plate assembly 21 to move vertically downward along the C-shaped groove, completely avoiding the "offset and jamming" of the side plate assembly 21 caused by the tilt of the chain 23.

[0053] If it is a multi-stage side plate assembly 21, the sprocket of the second-stage side plate assembly 21 and the same sprocket of the third-stage side plate assembly 21 are also kept on the same horizontal plane. The chain 23 is always horizontally connected from the first stage to the multi-stage transmission. The downward speed and displacement direction of each stage of the side plate assembly 21 are completely consistent. The manned platform 3 can achieve a smooth descent without shaking or tilting, which is suitable for the scenario of "carrying trapped personnel who may be injured" in fire rescue and reduces the risk of bumps.

[0054] In this embodiment: the side plate assembly 21 includes:

[0055] Three horizontal plates 211 are arranged in parallel and two parallel areas are formed between the three horizontal plates 211.

[0056] Two vertical plates 212 are connected between the two adjacent horizontal plates 211, and the two vertical plates 212 and the three horizontal plates 211 form two C-shaped slots with opposite opening directions;

[0057] Among them, three horizontal plates 211 and two vertical plates 212 together form a single side plate. The side plate group 21 is composed of two opposing side plate groups 21, and adjacent side plate groups 21 are slidably connected through adjacent C-shaped slots.

[0058] Specifically: Each side plate consists of an integrated rigid frame composed of "3 horizontal and 2 vertical" plates. The horizontal plates 211 provide horizontal load-bearing support to withstand the weight of the manned platform 3, while the vertical plates 212 provide vertical shear strength to withstand the thrust or tension during lifting. The side plate group 21 has a double-sided symmetrical design, which can evenly distribute the load to both sides of the side plates when under stress, avoiding bending deformation caused by unilateral overload.

[0059] Adjacent side plate groups 21 slide synchronously through "upper and lower double C-shaped slots". Compared with "single slot guidance", double slots can form "two-point positioning", completely restricting all horizontal displacements left, right and forward and backward, and only retaining vertical extension and contraction freedom; avoiding displacement deviation.

[0060] In this embodiment: the sprocket assembly 22 includes:

[0061] A rotating shaft 221 is rotatably connected to the opposite side of the side plate, and a motor power source is externally connected to one end of the rotating shaft 221.

[0062] Chain gear 222 is connected to the outer surface of the rotating shaft 221.

[0063] Specifically: the sprocket 222 on the outer surface of the shaft 221 rotates synchronously with the shaft 221, and its tooth grooves precisely mesh with the chain links of the chain 23, converting the rotational torque into "tension or thrust along the direction of the chain 23"; because the sprocket 222 is coaxial with the shaft 221, there will be no "eccentric friction" during rotation, and the chain 23 is subjected to uniform force without local compression or stretching, completely avoiding "chain 23 jamming" or "uneven tooth surface wear".

[0064] In this embodiment: an installation ring is fixedly installed on the top of the outer frame 1 for installing the outer frame 1 on the roof platform.

[0065] Specifically: Under normal conditions, the equipment is in a retracted state and is installed on the rooftop platform via an installation ring. When it is needed, the dropper 2 extends and retracts directly, transporting the passenger platform 3 to a fixed position and then transporting the person to the ground. This achieves the goal of saving land resources, and even eliminates the need for additional land. At the same time, no auxiliary facilities are installed that occupy the walls of other residents, and it will not obstruct the lighting of residents upstairs and downstairs.

[0066] In this embodiment: multiple side plates are made of aluminum alloy.

[0067] Specifically: the side plates made of aluminum alloy ensure stable and reliable operation without swaying back and forth or left and right. Another advantage of the mast structure is that it can withstand strong winds and can operate normally even in heavy rain.

[0068] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A suspended tower fire safety lift platform, characterized in that: The utility model relates to a kind of passenger drop-off device, including: Outer frame, which is provided with falling piece inside two sides, and the opposite side of the falling piece is connected with passenger platform; Falling piece, including: Edge plate group, multiple edge plate groups are slidably connected to form the falling piece; Chain wheel group, two chain wheel groups are installed on the opposite side of two edge plates, in vertical direction, the upper chain wheel group and the lower chain wheel group are symmetrically distributed with the center of edge plate as center, in adjacent two edge plate groups, the chain wheel spacing same chain wheel group is driven by chain; Wherein, the middle part of the edge plate group connected with frame is connected with hydraulic telescopic rod, and the hydraulic telescopic rod is used to displace next edge plate group downward.

2. The suspended tower fire safety lift platform according to claim 1, characterized in that: The chain wheel group is provided with two chain wheels, and the chain wheel spacing in the upper chain wheel group is less than the chain wheel spacing in the lower chain wheel group.

3. The suspended tower fire safety lift platform according to claim 2, characterized in that: In adjacent edge plate group, the same chain wheel is in the same horizontal plane in vertical direction.

4. The suspended tower fire safety lift platform according to claim 3, characterized in that: The edge plate group includes: Three horizontal plates, three horizontal plates are arranged in parallel, and two parallel regions are formed between three horizontal plates; Two vertical plates, two vertical plates are connected between two adjacent horizontal plates, and two vertical plates and three horizontal plates form two C-shaped notches with opposite opening directions; Wherein, three horizontal plates and two vertical plates jointly form a single edge plate, and the edge plate group is composed of two opposite edge plates, and adjacent edge plate group is slidably connected through adjacent C-shaped notch.

5. The suspended tower fire safety lift platform according to claim 4, characterized in that: The chain wheel group includes: Rotating shaft, which is rotatably connected to the opposite side of the edge plate, and the outer end of the rotating shaft is connected with motor source; Chain gear, which is connected to the outer surface of the rotating shaft.

6. The suspended tower fire safety lift platform according to claim 5, characterized in that: The top of the outer frame is fixedly installed with mounting ring, for mounting the outer frame on roof platform.

7. The suspended tower fire safety lift platform according to claim 6, characterized in that: Multiple edge plates are made of aluminum alloy.

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