High-altitude fire-fighting platform for large darkroom

Abstract

The invention belongs to the technical field of fire fighting equipment, and particularly relates to a high-altitude fire fighting platform for a large darkroom, which mainly comprises a door frame fixedly arranged on the side wall of the darkroom, and a fire fighting door arranged on the outer side of the darkroom, rotationally arranged relative to the door frame and arranged on the outer side of the darkroom; the fire-fighting platform is arranged on the door frame, a wave-absorbing material is arranged on the fire-fighting platform and covers the door frame, and a preset distance is formed between the edge of the wave-absorbing material and the edge of the fire-fighting platform; the fire-fighting platform comprises a pedal plate and a protection plate, one side of the pedal plate is hinged to the door frame, and the protection plate is hinged to the other side of the pedal plate; when the fire-fighting platform is in an unused state, the pedal plate and the protection plate form a shielding surface, and the wave-absorbing material can cover the edge of the door frame; when the fire-fighting platform is in a use state, the pedal is in a horizontal state, and a preset included angle is formed between the protection plate and the pedal. By the adoption of the structure, a high-altitude fire extinguishing site can be provided for firefighters, meanwhile, the shielding effect of the darkroom can be guaranteed, and the darkroom is very practical.

Description

Technical Field

[0001] The invention belongs to the technical field of fire fighting equipment, in particular to a high altitude fire fighting platform used in a large dark room. Background Art

[0002] When testing large products or some military products, the darkroom required is also large due to the large size of the product itself. Once a fire occurs in a large darkroom, firefighters will not be able to quickly carry out firefighting and disaster relief, which will lead to further losses.

[0003] Existing large darkrooms are often not equipped with high-altitude firefighting operation platforms. Once a fire occurs, firefighting and disaster relief can only be carried out outside the darkroom, which can easily cause further losses around the fire point and bring greater risks. Summary of the invention

[0004] The present invention provides a high-altitude fire fighting platform for a large darkroom, which solves the problem that when a fire occurs in an existing large darkroom, high-altitude fire extinguishing cannot be carried out and the fire can only be extinguished around the darkroom, thereby avoiding the failure to extinguish the fire in time, resulting in further expansion of the loss of darkroom equipment, and the huge risk of the expansion of the fire to the surrounding equipment.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A high altitude fire fighting platform for large darkrooms, comprising:

[0007] A door frame is fixedly arranged on the side wall of the darkroom and is provided with a preset height from the ground, and the door frame is used to connect the inner side and the outer side of the darkroom;

[0008] A fire door is rotatably mounted on the door frame, and the fire door is arranged outside the darkroom;

[0009] A fire fighting platform is arranged on the door frame, the fire fighting platform is provided with a shielding surface, an absorbing material is arranged on the shielding surface of the fire fighting platform, the absorbing material covers the shielding surface and the edge of the absorbing material is set at a preset distance from the edge of the fire fighting platform;

[0010] The fire fighting platform comprises a foot pedal and a protective plate, one side of the foot pedal is hinged to the door frame, and the protective plate is hinged to the other side of the foot pedal;

[0011] When the fire fighting platform is not in use, the foot pedal and the protective plate constitute a shielding surface, and the absorbing material can cover the edge of the door frame; when the fire fighting platform is in use, the foot pedal is in a horizontal state, and a preset angle is set between the protective plate and the foot pedal.

[0012] In some embodiments, it also includes a first protective rod and a second protective rod, wherein two ends of the first protective rod are movably connected to the door frame and the protective plate respectively, and two ends of the second protective plate are movably connected to the door frame and the protective plate respectively, and the first protective rod and the second protective rod are symmetrically arranged about the foot pedal.

[0013] In some embodiments, when the fire fighting platform is in use, a first distance is provided between the first protection bar and the second protection bar and the foot pedal.

[0014] In some embodiments, a first limiter is provided on the foot pedal, and the first limiter is provided with two mutually perpendicular first limit surfaces and second limit surfaces, and the first limit surface is fitted and fixed on the foot pedal. When the fire fighting platform is in use, the protective plate abuts against the second limit surface to make the protective plate perpendicular to the foot pedal.

[0015] In some embodiments, it also includes flexible load-bearing steel ropes symmetrically arranged on both sides of the foot pedal, wherein both ends of the flexible load-bearing steel ropes are respectively fixed to the door frame and the foot pedal, and the connection point between the flexible load-bearing steel ropes and the foot pedal is close to the hinge between the foot pedal and the protective plate, wherein when the foot pedal is in a horizontal state, the flexible load-bearing steel ropes are in a taut and straight state.

[0016] In some embodiments, a first fixing column is provided at the edge of the foot pedal, the first fixing column extends out of the edge of the foot pedal and has a preset length, and one end of the flexible load-bearing steel wire rope is connected to the first fixing column.

[0017] In some embodiments, a movable panel is provided on the foot pedal, the absorbing material is laid on the movable panel, a push-pull handle is provided on the foot pedal near the outer side of the darkroom, a fixed beam is provided on the foot pedal near the inner side of the darkroom, the fixed beam is rotatably connected to the push-pull handle, and the fixed beam abuts against the movable panel to fix the movable panel on the foot pedal;

[0018] The foot pedal is provided with a first notch, the first notch is adapted to the shape of the push-pull handle, and the push-pull handle can be separated from the foot pedal through the first notch; the push-pull handle is arranged near the hinge between the protective plate and the foot pedal.

[0019] In some embodiments, the door frame is provided with a plurality of supporting rollers, and when the fire fighting platform is not in use, one of the rollers is close to the position of the first fixing rod;

[0020] A storage rope is wound around the support roller, one end of the storage rope is fixedly connected to a first fixing column arranged on the foot pedal, and the other end of the storage rope passes through the door frame and is connected to a storage roller arranged outside the darkroom.

[0021] In some embodiments, there are two storage ropes, and the two storage ropes are symmetrically arranged about the foot pedal inside the dark room. The storage roller is provided with two parallel storage grooves, and the two storage ropes can be stored in the two storage grooves respectively.

[0022] In some embodiments, the door frame is provided with a first fixing component, the first fixing component includes a first guide plate and a first fixing hole, the first guide plate is inclined toward the outside of the door frame, and the first limiter is provided with an adaptive elastic latch component, the elastic latch component includes a latch body, a reset spring and a limit baffle, the limit baffle is arranged on the latch body and abuts against the inner wall of the first limiter, the reset spring is sleeved on the latch body, and its two ends are respectively abutted against the limit baffle and the first limiter, and the latch body can reciprocate along its own axial direction relative to the first limiter.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present application arranges a fire door and a fire platform on the side wall of a large darkroom at a certain height from the ground, wherein the fire platform can be folded. When the fire platform is unfolded, it includes a foot pedal and a protective plate, and the foot pedal is in a horizontal state, providing a high-altitude standing position for firefighters, thereby achieving high-altitude fire extinguishing. When the fire platform is not in use, the fire platform is provided with absorbing material near the inner side of the darkroom, and the edge of the door frame is coated with a certain distance, thereby ensuring the test effect of the entire darkroom without affecting the test performance of the darkroom.

[0025] Additional aspects and advantages of the present application will be partially given in the following description, which will become apparent from the following description, or will be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a first stereoscopic view of a high-altitude fire fighting platform for a large darkroom of the present invention when it is not opened;

[0027] Figure 2 A second stereoscopic view of a high-altitude fire fighting platform for a large darkroom of the present invention when not opened;

[0028] Figure 3 It is a first stereoscopic view of a high-altitude fire fighting platform for a large darkroom of the present invention in an open state;

[0029] Figure 4A second stereoscopic view of a high-altitude fire fighting platform for a large darkroom of the present invention in an open state;

[0030] Figure 5 A third stereoscopic view of a high-altitude fire fighting platform for a large darkroom of the present invention in an open state;

[0031] Figure 6 It is a cross-sectional view of a push-pull handle of a high-altitude fire fighting platform for a large darkroom of the present invention;

[0032] Figure 7 Figure 6 Enlarged view of point A in the middle;

[0033] Figure 8 It is a first schematic diagram of a locking structure of a high-altitude fire fighting platform for a large darkroom of the present invention;

[0034] Fig. 9 A second schematic diagram of a locking structure of a high-altitude fire fighting platform for a large darkroom according to the present invention;

[0035] Fig.10 It is a first schematic diagram of a storage box for a high-altitude fire fighting platform in a large darkroom of the present invention; DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with specific drawings. In the description of this embodiment, unless otherwise specified, the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the present application must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0037] like Figure 1-3 As shown, a high-altitude fire fighting platform for a large darkroom provided by the present invention mainly comprises a door frame 200, which is fixedly arranged on the side wall 100 of the darkroom and has a preset height from the ground, and the door frame 200 is used to connect the inner side and the outer side of the darkroom;

[0038] The fire door 201 is rotatably arranged on the door frame 200 through a hinge, and the fire door 201 is arranged outside the darkroom; a door handle 2011 is arranged on the fire door 201, and the fire door 201 is opened toward the outside of the darkroom side wall by rotating the door handle 2011.

[0039] The fire fighting platform 202 is arranged on the door frame 200. The fire fighting platform 202 is provided with a shielding surface. The shielding surface of the fire fighting platform 202 is provided with an absorbing material 2023. Figure 6As shown, in this embodiment, the absorbing material 2023 is VHP26, the absorbing material 2023 covers the shielding surface and the edge of the absorbing material 2023 is set at a preset distance from the edge of the fire platform 202, so as to ensure that the setting of the fire door 201 will not affect the experimental effect of the darkroom; in this embodiment, the absorbing material 2023 is bonded to the fire platform 202, and the gap formed by the installation of the door frame 200 is fully shielded, so as to have the same shielding effect as that without the fire door 201.

[0040] Specifically, the fire fighting platform 202 includes a foot pedal 2022 and a protective plate 2021. One side of the foot pedal 2022 is hinged to the door frame 200 through a first hinge 206, and the protective plate 2021 is also hinged to the other side of the foot pedal 2022 through the first hinge 206. When the fire fighting platform 202 is not in use, the foot pedal 2022 and the protective plate 2021 form a shielding surface, and the wave absorbing material 2023 can cover the edge of the door frame 200. When the fire fighting platform 202 is in use, the foot pedal 2022 is in a horizontal state, and a preset angle is set between the protective plate 2021 and the foot pedal 2022. By setting the fire fighting platform 202 into a folding structure, a standing position for firefighters can be formed after opening. Due to high-altitude operations, a preset angle is formed between the protective plate 2021 and the foot pedal 2022, which forms a protective effect on firefighters, so that firefighters can stand on the foot pedal 2022 to ensure relative safety.

[0041] In this embodiment, a fire fighting platform 202 is set at a high altitude, the fire fighting platform 202 is set to a folding structure, and an absorbing material 2023 is laid on the fire fighting platform 202. While ensuring the shielding effect of the darkroom, high-altitude fire fighting operations are achieved, which can avoid the situation where the fire cannot be extinguished at high altitude, and further improve the safety performance of the darkroom.

[0042] In one embodiment, in order to further enhance the protection of firefighters, a first protection bar 2061 and a second protection bar 2062 are provided between the door frame 200 and the protection plate 2021. Both ends of the first protection bar 2061 and the second protection bar 2062 are connected to the side of the door frame 200 and the protection plate 2021, respectively, and the two are symmetrically arranged relative to the foot pedal 2022, ensuring that the first protection bar 2061 and the second protection bar 2062 provide the same pulling force on the protection plate 2021 to maintain balance. The first protection bar 2061, the second protection bar 2062 and the protection plate 2021 form a 270-degree enclosure to enhance the protection of firefighters working at height.

[0043] Furthermore, when the fire fighting platform 202 is in use, a first spacing is provided between the first protection bar 2061 and the second protection bar 2062 and the foot pedal 2022. By providing the first spacing, the distance between the first protection bar 2061 and the second protection bar 2062 and the foot pedal 2022 is large, thereby ensuring the stability of the connection to the protection plate 2021, and at the same time, the fire fighters can hold the first protection bar 206 and the second protection bar 2062, further enhancing the safety effect.

[0044] In this embodiment, taking the first protective rod 1206 as an example, one end of the first protective rod 1206 is rotatably set on the door frame 200, and a U-shaped hole is set at the other end of the first protective rod 2061. A connecting column is set on the protective plate 2021, and the connecting column is located in the U-shaped hole. By setting the U-shaped hole, movement interference of the protective plate 2021 during the retracting or folding process can be avoided, and jamming can be avoided.

[0045] In one embodiment, in order to ensure that the angles of the foot pedal 2022 and the protective plate 2021 remain stable during use, a first limiter 208 is provided on the foot pedal 2022. Figure 4 As shown, the first limiter 208 is provided with two mutually perpendicular first limit surfaces and second limit surfaces, the first limit surface is abutted and fixed against the foot pedal 2022, and when the protective plate 2021 is folded relative to the foot pedal 2022, the second limit surface is abutted against the protective plate 2021, so that the angle between the protective plate 2021 and the foot pedal 2022 is constantly maintained at 90 degrees, ensuring the stability of the structure and avoiding the angle between the protective plate 2021 and the foot pedal 2022 being less than 90 degrees, thereby reducing the standing space for firefighters.

[0046] In one embodiment, in order to ensure the stability of the foot pedal 2022 structure, two flexible load-bearing steel ropes 205 are further provided, and the two ends of the flexible load-bearing steel ropes 205 are respectively fixed to the door frame 200 and the foot pedal 2022, and the connection point between the flexible load-bearing steel ropes 205 and the foot pedal 2022 is close to the hinged setting of the foot pedal 2022 and the protective plate 2021, wherein, when the foot pedal 2022 is in a horizontal state, the flexible load-bearing steel ropes 205 are in a taut and straight state. By providing the flexible load-bearing steel ropes 205, a triangular structure is formed between the flexible load-bearing steel ropes 205, the foot pedal 2022 and the door frame 200, thereby strengthening the load-bearing capacity of the foot pedal 2022, and preventing the fire fighting platform 202 from collapsing due to excessive load on the foot pedal 2022.

[0047] Furthermore, in order to facilitate the connection and fixation of the flexible load-bearing steel rope 205, and to prevent the flexible load-bearing steel rope 205 from affecting the closing of the fire platform 202 when the protective plate 2021 and the foot pedal 2022 are closed, a first fixing column 20222 is provided at the edge of the foot pedal 2022, and the first fixing column 20222 is provided with a preset length, so as to facilitate the connection and fixation of the flexible load-bearing steel rope 205. When the fire platform 202 is folded and closed, the first fixing column 20222 protrudes relative to the door frame, thereby preventing the first fixing column 20222 and the flexible load-bearing steel rope 205 from affecting the closing of the fire platform 202. In this embodiment, it should be pointed out that when the fire platform 202 is in a closed state, a small angle is left between the fire platform 202 and the door frame 200, so that when the fire platform 202 begins to be used, it is easier to detach from the door frame 200 by its own gravity.

[0048] In one embodiment, when the fire fighting platform 202 is lowered, the thin wave absorbing material 2023 disposed inside the dark room needs to be pushed away to avoid affecting the deployment of the fire fighting platform 202. Specifically, in this embodiment, a movable panel 20221 is disposed on the foot pedal 2022, such as Figure 5-7 As shown, the absorbing material 2023 is laid on the movable panel 20221, a push-pull handle 300 is provided on the outer side of the foot pedal 2022 near the darkroom, a fixed beam 302 is provided on the inner side of the foot pedal 2022 near the darkroom, and the fixed beam 302 is rotatably connected to the push-pull handle 300. In this embodiment, a first connecting rod 301 is provided for rotatable connection. When the push-pull handle 300 abuts against the foot pedal 2022, the fixed beam 302 abuts against the movable panel 20221 to fix the movable panel 20221 on the foot pedal 2022, thereby fixing the absorbing material 2023.

[0049] Furthermore, in order to facilitate the detachment of the absorbing material 2023 from the foot pedal, a first notch 20224 is provided on the foot pedal 2022. The shape of the first notch 20224 is the same as that of the push-pull handle 300. When the push-pull handle 300 is rotated to detach the push-pull handle 300 from the first notch 20224, the movable panel 20221 can detach from the foot pedal 2022, thereby detaching the absorbing material 2023 from the foot pedal 2022, thereby facilitating the folding between the foot pedal 2022 and the protective plate 2021 to form a standing position for firefighters.

[0050] In order to reduce the dead weight of the foot pedal 2022 in this embodiment, a supporting transverse tube 20225 is provided on the foot pedal 2022 , and the supporting transverse tube 20225 is arranged to intersect vertically, thereby improving the supporting strength of the foot pedal 2022 .

[0051] In one embodiment, in order to facilitate the restoration of the protective plate 2021 and the foot pedal 2022, a plurality of support rollers are arranged on the door frame 200, and when the fire fighting platform 202 is not in use, one of the support rollers is close to the position of the first fixed column 20222, thereby ensuring that the fire fighting platform 202 is stored in place; a storage rope is wound around the support roller, one end of the storage rope is fixedly connected to the first fixed column 20222 arranged on the foot pedal 2022, and the other end of the storage rope passes through the door frame and is connected to the storage roller arranged outside the darkroom.

[0052] Specifically, the supporting rollers include a group of first rollers 203 and a group of second rollers 204 , the storage ropes include a first storage rope 2031 and a second storage rope 2041 , the first storage rope 2031 is arranged on a plurality of first rollers 203 , and the second storage rope 2041 is arranged on a plurality of second rollers 204 .

[0053] Taking multiple first rollers 203 and the first storage rope 2031 as an example, the first rollers 203 are respectively located on the inner and outer sides of the darkroom door frame 200, and the first storage rope 2031 is wound around the multiple first rollers 203. By setting the first rollers 203 at different angles, the direction conversion of the first storage rope 2031 is realized. One end of the first storage rope 2031 is connected to the first fixed column 20222, and the other end of the first storage rope 2031 is connected to the storage roller 401.

[0054] In this embodiment, Fig.10 As shown, the storage roller 401 also has a storage box 400, and the storage roller 401 is rotatably set on the storage box 400. The storage roller 401 is provided with a storage groove, and one end of the storage roller 401 is connected to the first handle 403. The storage and release of the first storage rope 2031 are realized by the forward and reverse rotation of the first handle 403. The storage groove includes a first storage groove 4011 and a second storage groove 4012. The first storage rope 2031 is set in the first storage groove 4011, and the second storage rope 2041 is set in the second storage groove 4012, so that the first storage rope 2031 and the second storage rope 2041 do not interfere with each other during the storage or release process, and meet the synchronous storage or release action.

[0055] Furthermore, a support roller 402 is provided on the storage box 400, and the support roller 402 is rotatably arranged on the storage box 400. A first support groove 1021 and a second support groove 4022 are arranged on the support roller 402. The first storage rope 2031 is wound around the first support groove 4021, and the second storage rope 2041 is wound around the second storage groove 4022, thereby ensuring that the first storage rope 2031 and the second storage rope 2041 do not slip, causing rotation interference of the storage roller 401.

[0056] Similarly, the second storage rope 2041 has the same principle as the first storage rope 2031, and will not be elaborated herein.

[0057] In one embodiment, in order to facilitate the opening and closing of the fire fighting platform 202, a first fixing assembly 207 is provided on the door frame 200, and the first fixing assembly 207 includes a first fixing hole and a first guide plate 2071, and the first guide plate 2071 is inclined to the outside of the door frame 200. The first stopper 208 is provided with an adaptive elastic latch assembly, and the elastic latch assembly includes a latch body 2081, a return spring 2083 and a limit baffle 20811, as shown in FIG. Figure 8-9 As shown, the limit baffle 20811 is arranged on the latch body 2081 and abuts against the inner wall of the first limiter 208, the return spring 2083 is sleeved on the latch body 2081, and its two ends respectively abut against the limit baffle 20811 and the first limiter 208, the return spring 2083 is always in a compressed state, and the latch body 20811 can reciprocate along its own axial direction relative to the first limiter 208.

[0058] Specifically, when the fire fighting platform 202 is opened, the main ablation personnel holds the head end 2084 to drive the pin body 2081 to move along its own axis. At the same time, the limit baffle 20811 compresses the return spring 2083. When the plug-in end 2082 is disengaged from the first fixing hole, the fire fighting personnel can push the fire fighting platform 202 by hand to make it reach a folded state.

[0059] When the fire fighting platform 202 needs to be closed, it is only necessary to rotate the first handle 403 so that the first storage rope 20231 and the second storage rope 2041 drive the fire fighting platform 202 to reset. When the plug end 2082 of the latch body 2081 passes through the first guide plate 2071, the latch body 2081 drives the limit baffle 20811 to compress the reset spring 2083 until one end of the latch body 2081 is engaged with the first fixing hole under the action of the reset spring 2083. At this time, the fire fighting platform 202 is reset to the initial state. In this embodiment, by setting the above structure, the fire fighting platform 202 can be quickly opened and closed, and the operation is simple.

[0060] The above is only a preferred embodiment of the present invention. It should be noted that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A high altitude fire fighting platform for large darkrooms, characterized in that: include: A door frame is fixedly arranged on the side wall of the darkroom and is provided with a preset height from the ground, and the door frame is used to connect the inner side and the outer side of the darkroom; A fire door is rotatably mounted on the door frame, and the fire door is arranged outside the darkroom; A fire fighting platform is arranged on the door frame, the fire fighting platform is provided with a shielding surface, an absorbing material is arranged on the shielding surface of the fire fighting platform, the absorbing material covers the shielding surface and the edge of the absorbing material is set at a preset distance from the edge of the fire fighting platform; The fire fighting platform comprises a foot pedal and a protective plate, one side of the foot pedal is hinged to the door frame, and the protective plate is hinged to the other side of the foot pedal; When the fire fighting platform is not in use, the foot pedal and the protective plate constitute a shielding surface, and the absorbing material can cover the edge of the door frame; when the fire fighting platform is in use, the foot pedal is in a horizontal state, and a preset angle is set between the protective plate and the foot pedal.

2. A high altitude fire fighting platform for a large darkroom according to claim 1, characterized in that: It also includes a first protective rod and a second protective rod, wherein two ends of the first protective rod are movably connected to the door frame and the protective plate respectively, and two ends of the second protective plate are movably connected to the door frame and the protective plate respectively, and the first protective rod and the second protective rod are symmetrically arranged about the foot pedal.

3. A high altitude fire fighting platform for a large darkroom according to claim 2, characterized in that: When the fire fighting platform is in use, a first distance is provided between the first protection bar and the second protection bar and the foot pedal.

4. A high altitude fire fighting platform for a large darkroom according to claim 2, characterized in that: The foot pedal is provided with a first limiter, and the first limiter is provided with two mutually perpendicular first limit surfaces and a second limit surface. The first limit surface is fitted and fixed on the foot pedal. When the fire fighting platform is in use, the protective plate abuts against the second limit surface so that the protective plate is perpendicular to the foot pedal.

5. A high altitude fire fighting platform for a large darkroom according to claim 4, characterized in that: It also includes flexible load-bearing steel ropes symmetrically arranged on both sides of the foot pedal, wherein the two ends of the flexible load-bearing steel ropes are respectively fixed to the door frame and the foot pedal, and the connection point between the flexible load-bearing steel ropes and the foot pedal is close to the hinge between the foot pedal and the protective plate, wherein when the foot pedal is in a horizontal state, the flexible load-bearing steel ropes are in a taut and straight state.

6. A high altitude fire fighting platform for a large darkroom according to claim 5, characterized in that: A first fixing column is provided at the edge of the foot pedal. The first fixing column extends out of the edge of the foot pedal and is provided with a preset length. One end of the flexible load-bearing steel wire rope is connected to the first fixing column.

7. The high altitude fire fighting platform for a large darkroom according to claim 1, characterized in that: A movable panel is provided on the foot pedal, the absorbing material is laid on the movable panel, a push-pull handle is provided on the foot pedal near the outer side of the darkroom, a fixed beam is provided on the foot pedal near the inner side of the darkroom, the fixed beam is rotatably connected to the push-pull handle, and the fixed beam abuts against the movable panel to fix the movable panel on the foot pedal; The foot pedal is provided with a first notch, the first notch is adapted to the shape of the push-pull handle, and the push-pull handle can be separated from the foot pedal through the first notch; the push-pull handle is arranged near the hinge between the protective plate and the foot pedal.

8. The high-altitude fire fighting platform for a large darkroom according to claim 6, characterized in that: The door frame is provided with a plurality of supporting rollers, and when the fire fighting platform is not in use, one of the rollers is close to the position of the first fixing rod; A storage rope is wound around the support roller, one end of the storage rope is fixedly connected to a first fixing column arranged on the foot pedal, and the other end of the storage rope passes through the door frame and is connected to a storage roller arranged outside the darkroom.

9. A high altitude fire fighting platform for a large darkroom according to claim 8, characterized in that: There are two storage ropes, which are symmetrically arranged about the foot pedal inside the dark room. The storage roller is provided with two parallel storage grooves, and the two storage ropes can be stored in the two storage grooves respectively.

10. A high altitude fire fighting platform for a large darkroom according to claim 8, characterized in that: The door frame is provided with a first fixing component, which includes a first guide plate and a first fixing hole. The first guide plate is inclined toward the outside of the door frame. The first limiter is provided with a matching elastic latch component, which includes a latch body, a return spring and a limit baffle. The limit baffle is provided on the latch body and abuts against the inner wall of the first limiter. The return spring is sleeved on the latch body, and its two ends are respectively abutted against the limit baffle and the first limiter. The latch body can reciprocate along its own axial direction relative to the first limiter.

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