Rotatably collapsible fire pan

Abstract

The utility model relates to engineering construction auxiliary equipment technical field discloses rotatable fire receiving disc that gathers, including fire receiving cylinder and fire receiving disc body subassembly, fire receiving cylinder is set up in the I type structure with the hollow inside of top opening, the fixed ring is integrally connected with fire receiving cylinder top, the annular groove is seted up on the outer circumferential wall of fixed ring, the drive part that is used for unfolding fire receiving disc body subassembly is seted up in the annular groove, fire receiving disc body subassembly includes fixed fire receiving disc, driven fire receiving disc and driving fire receiving disc, and fixed fire receiving disc, driven fire receiving disc and driving fire receiving disc are connected through opening and closing limiting piece. The utility model is in view of the work site fire operation, utilizes the principle that gathers the fan, can realize the flexible adjustment of fire receiving disc body size, fire receiving distance, not only can improve fire receiving disc fire receiving effect, and provides the powerful guarantee for the personal safety and work efficiency of fire operation personnel, can reduce the operation personnel scald, the hidden danger such as on-site fire, achieve prevention before the fact.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for engineering construction, specifically a rotatable and retractable fire receiving plate. Background Technology

[0002] During the maintenance and troubleshooting of boiler equipment in thermal power plants, on-site hot work is essential. Workers often need to frequently use a hot work plate to prevent sparks and slag from splashing out. These sparks and slag are very hot and can easily cause burns to workers. Especially when performing hot work at heights, measures such as using hot work plates, shielding and capturing molten slag, limiting slag, and demarcating the area where sparks could fly should be taken to prevent fires caused by flying sparks.

[0003] Since the existing fire-receiving trays and ropes are mostly fixed, during on-site use, especially in high places or narrow spaces, it is impossible to adjust the size of the fire-receiving tray and its vertical distance according to the site conditions. This results in limited fire-receiving tray functionality, poor fire-receiving effect, and numerous inconveniences reported by operators, failing to meet the requirements of on-site use. Utility Model Content

[0004] The purpose of this invention is to provide a rotatable and retractable fire-receiving plate to solve the problem mentioned in the background art that the existing fire-receiving plate body cannot be adjusted according to the site conditions in terms of its size and vertical distance, resulting in limited fire-receiving plate function, poor fire-receiving effect, and many inconveniences reported by operators, and thus failing to meet the requirements of on-site use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotatable and retractable fire-receiving plate includes a fire-receiving tube and a fire-receiving plate body assembly. The fire-receiving tube is arranged in an I-shaped structure with an open top and a hollow interior. A fixing ring is integrally connected to the top of the fire-receiving tube. An annular groove is formed on the outer circumferential wall of the fixing ring. A driving component for unfolding the fire-receiving plate body assembly is provided inside the annular groove.

[0007] Preferably, the fire-receiving plate assembly includes a fixed fire-receiving plate, a driven fire-receiving plate, and an active fire-receiving plate. The fixed fire-receiving plate, the driven fire-receiving plate, and the active fire-receiving plate are connected by an opening and closing limiting member. There are a total of six driven fire-receiving plates. The fixed fire-receiving plates, the driven fire-receiving plates, and the active fire-receiving plates are all arranged in a fan-shaped structure. The fixed fire-receiving plates are spliced ​​and combined with the six driven fire-receiving plates and the active fire-receiving plates to form a circular structure, and are distributed sequentially on the outer circumference of the fixed ring at the top of the fire-receiving tube. The fixed fire-receiving plate is provided with a first shielding dam on the top of the outer circumference of the fixed fire-receiving plate except on one side of the fire-receiving tube. A first slot is opened at the bottom of the fixed fire-receiving plate near the fire-receiving tube. The fixed fire-receiving plate is fixedly engaged with the fixed ring at the top of the annular groove through the first slot.

[0008] Preferably, the six driven fire-receiving plates are arranged in a stepped manner at the bottom of the fixed fire-receiving plate. Each driven fire-receiving plate has a second shielding dam connected to its top outer periphery on the side away from the fixed fire-receiving plate and the fixed ring. The six second shielding dams are distributed in an increasing diameter pattern. Each driven fire-receiving plate has a second slot at its bottom end near the fire-receiving tube. The six driven fire-receiving plates slide and engage with the fixed ring at the top of the annular groove through the second slots.

[0009] Preferably, the active fire-receiving plate is located at the bottom of the last passive fire-receiving plate. The active fire-receiving plate is provided with a third shielding dam on the outer top of the side away from the passive fire-receiving plate and the fixed ring. The bottom of the active fire-receiving plate near the fire-receiving tube is provided with a third slot. The active fire-receiving plate is slidably engaged with the fixed ring at the top of the annular groove through the third slot.

[0010] Preferably, the opening and closing limiting components are embedded and distributed on the outer walls of the top corners of the first shielding dike, multiple second shielding dikes, and the third shielding dike. Each opening and closing limiting component includes a limiting cylinder, a limiting spring, and a limiting rod. One end of the limiting spring is connected to the inner wall of the limiting cylinder, and the other end of the limiting spring is connected to the limiting rod.

[0011] Preferably, the driving component includes a driven gear ring, a bearing, and a driving gear. The driven gear ring is sleeved outside the bearing, the bearing is sleeved inside the fixed ring, the driving gear is meshed on one side of the driven gear ring, the driving gear is connected to the output end of the drive motor, the drive motor is embedded in the top of the annular groove, a connecting ring is provided on the top of the driven gear ring, and one side of the connecting ring is connected to the bottom of the active fire receiving plate near the fire receiving tube through a connecting block.

[0012] Preferably, each of the six second and third shielding cofferdams has a limiting landslide groove on the inner wall of the end near the fixed fire receiving plate, and the limiting rod slides within the limiting landslide groove.

[0013] Preferably, the top of the fire-receiving tube is connected to a lifting hoist via a connecting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application addresses hot work operations at the work site. By utilizing the fan-shaped folding principle, the size of the hot-receiving plate and the distance to the hot-receiving plate can be flexibly adjusted. This not only improves the hot-receiving effect of the hot-receiving plate but also provides strong protection for the personal safety and work efficiency of hot work personnel. It can reduce the risk of accidents such as burns to workers and fires at the site, thus preventing problems before they occur.

[0016] 2. The fire-receiving plate assembly on the outer circumferential wall at the top of the fire-receiving tube consists of a fixed fire-receiving plate, a driven fire-receiving plate, and an active fire-receiving plate, which can be assembled into a circular structure. The driven and active fire-receiving plates can be slidably engaged with the fixed ring. During use, the size of the fire-receiving plate can be adjusted according to the site conditions. Compared with the existing fixed type of fire-receiving plate, it can solve the problem of not being able to adjust the size of the plate in high places or narrow spaces, meet the usage needs in different scenarios, and expand the application range of the fire-receiving plate.

[0017] 3. The fire-receiving plate assembly is connected by opening and closing limiting components, which include limiting cylinders, limiting springs, and limiting rods. Each of the six second and third shielding dikes has a limiting sliding groove on the inner wall near the fixed fire-receiving plate. The limiting rod can slide in and out within the limiting sliding groove, allowing the distance between the various parts of the fire-receiving plate assembly to be adjusted as needed. This better adapts to different working environments and improves the flexibility of the fire-receiving plate.

[0018] 4. Install shielding dikes on the top of the fixed, driven, and active fire receiving plates. These shielding dikes can effectively prevent sparks and welding slag from splashing out, protect workers from burns, reduce the risk of fire, and improve the fire receiving effect and safety of the fire receiving plates.

[0019] 5. The fire receiving tray body is rotated and opened and closed by a drive component, which facilitates fire receiving operations in different spaces and improves the ease of use of the fire receiving tray.

[0020] 6. A lifting hoist is connected to the top of the fire-receiving tube via a connecting frame, which allows the fire-receiving plate to be easily adjusted to a suitable height when working at heights, thus improving work efficiency. Attached Figure Description

[0021] Figure 1 This is an overall isometric view of the present invention;

[0022] Figure 2 This is a schematic diagram showing the connection between the fixed fire-receiving plate and multiple driven fire-receiving plates of this utility model;

[0023] Figure 3 This is a schematic diagram of the stepped distribution of the two driven fire receiving plates and the position of the second slot of this utility model.

[0024] Figure 4 This is a schematic diagram of the active fire-receiving plate structure of this utility model;

[0025] Figure 5 For the present utility model Figure 3 Enlarged view of area A in the middle;

[0026] Figure 6 This is a schematic diagram of the drive component structure of this utility model;

[0027] Figure 7 This is a top view of the fire-receiving tube of this utility model.

[0028] In the diagram: 1. Fire receiving tube; 11. Fixing ring; 12. Annular groove; 2. Fire receiving plate assembly; 21. Fixing fire receiving plate; 212. First shielding dam; 213. First slot; 22. Driven fire receiving plate; 221. Second shielding dam; 222. Second slot; 23. Active fire receiving plate; 231. Third shielding dam; 232. Third slot; 3. Limiting cylinder; 31. Limiting spring; 32. Limiting rod; 41. Driven gear ring; 42. Driving gear; 43. Connecting ring; 44. Connecting block; 5. Limiting slip groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see the appendix Figure 1-7As shown, the rotatable and retractable fire-receiving tray includes a fire-receiving cylinder 1 and a fire-receiving tray body assembly 2. The fire-receiving cylinder 1 has an I-shaped structure with an open top and a hollow interior. Self-locking wheels are installed at the bottom of the fire-receiving cylinder 1, allowing free rotation and locking to ensure stability during operation. A retractable rod is installed on the outer wall of the fire-receiving cylinder 1, facilitating carrying and securing. A drain ball valve is connected to the bottom of the fire-receiving cylinder 1, and a water inlet valve is connected to the bottom outer wall. When there is a large amount of sparks or welding slag, a suitable amount of water can be added before operation to improve the cooling effect of the welding slag. When it is necessary to drain the internal liquid, simply turn the ball valve slightly to quickly drain it (see Appendix 1 for details). A guide four-sided welding slag disc is located in the middle of the fire-receiving cylinder 1, which collects the welding slag into the central cylinder. After the hot work is completed, the drain at the bottom can be opened. The ball valve is used for slag discharge (see Appendix 7 for details). The top of the fire-receiving cylinder 1 is connected to a lifting hoist via a connecting frame. The lifting hoist is used to adjust the height of the fire-receiving plate to adapt to different operational needs. The top of the fire-receiving cylinder 1 is integrally connected to a fixing ring 11. An annular groove 12 is opened on the outer circumferential wall of the fixing ring 11. The annular groove 12 is equipped with a driving component for unfolding the fire-receiving plate assembly 2. The fire-receiving plate assembly 2 can be unfolded to the working state by the driving component. The fire-receiving plate assembly 2 can flexibly adjust the size of the fire-receiving plate and the fire-receiving distance for hot work operations by using the fan-shaped folding principle. This not only improves the fire-receiving effect of the fire-receiving plate, but also provides strong protection for the personal safety and work efficiency of hot work personnel. It can eliminate the accident hazards such as burns to workers and fires on site, and prevent problems before they occur.

[0031] Please see the appendix Figure 1 , 2As shown in Figures 3, 4, and 5, the fire-receiving plate assembly 2 includes a fixed fire-receiving plate 21, a driven fire-receiving plate 22, and an active fire-receiving plate 23. The fixed fire-receiving plate 21, the driven fire-receiving plate 22, and the active fire-receiving plate 23 are connected by opening and closing limiting members. There are a total of six driven fire-receiving plates 22. The fixed fire-receiving plates 21, the driven fire-receiving plates 22, and the active fire-receiving plates 23 are all arranged in a fan-shaped structure. The fixed fire-receiving plate 21 and the six driven fire-receiving plates 22 and the active fire-receiving plate 23 are spliced ​​together to form a circular structure. The fire-receiving plates 21, six driven fire-receiving plates 22, and an active fire-receiving plate 23 are arranged sequentially on the outer circumference of the fixed ring 11 at the top of the fire-receiving tube 1. The fire-receiving plate assembly 1 achieves a clever structural integration by innovatively combining the fixed fire-receiving plate 21, six driven fire-receiving plates 22, and an active fire-receiving plate 23. Each plate has a fan-shaped structure. This shape design ensures both tightness when spliced ​​into a circle and ease of unfolding and folding when needed. Except for one side of the fire-receiving tube 1, the top of the outer circumference of the fixed fire-receiving plate 21 is provided with a first shielding dam 212. The first shielding dike 212 forms a three-dimensional protection, together constituting a barrier to prevent sparks and welding slag from splashing out. The bottom of the fixed receiving plate 21 near the receiving tube 1 has a first slot 213. The fixed receiving plate 21 is fixedly engaged with the fixed ring 11 at the top of the annular groove 12 through the first slot 213. Six driven receiving plates 22 are arranged in a stepped manner at the bottom of the fixed receiving plate 21. The fixed receiving plate 21 is fixedly engaged with the fixed ring 11 through the first slot 213. This provides a stable foundation support for the entire plate assembly. Each driven fire-receiving plate 22 has a second shielding dam 221 connected to its top outer perimeter on the side away from the fixed fire-receiving plate 21 and the fixing ring 11. The six second shielding dams 221 are distributed in increasing diameter. Each driven fire-receiving plate 22 has a second locking groove 222 at its bottom near the fire-receiving tube 1. The six driven fire-receiving plates 22 slide and engage with the fixing ring 11 at the top of the annular groove 12 via the second locking grooves 222 (see Appendix). Figure 3As shown, the second slots 222 of the six driven fire-receiving plates 22 are arranged in a staggered, stepped manner. The six driven fire-receiving plates 22 are distributed in a stepped manner at the bottom of the fixed fire-receiving plate 21, and can slide on the fixed ring 11 through the second slots 222, allowing for flexible adjustment of the unfolded area. The active fire-receiving plate 23 is located at the bottom of the last driven fire-receiving plate 22. A third shielding dam 231 is provided on the outer top of the active fire-receiving plate 23 away from the driven fire-receiving plates 22 and the fixed ring 11. The bottom of the active fire-receiving plate 23 near the fire-receiving tube 1 is provided with a third slot 232. The active fire-receiving plate 23 slides and engages on the fixed ring 11 at the top of the annular groove 12 through the third slot 232. The active fire-receiving plate 23 is located below the driven fire-receiving plate 22, and is also slidably engaged through the third slot 232 and connected to the driving component. Playing a core role in driving the movement of the entire disc assembly, the opening and closing limiting components are embedded on the outer walls of the top corners of the first shielding dike 212, multiple second shielding dikes 221, and third shielding dikes 231. Each opening and closing limiting component includes a limiting cylinder 3, a limiting spring 31, and a limiting rod 32. One end of the limiting spring 31 is connected to the inner wall of the limiting cylinder 3, and the other end of the limiting spring 31 is connected to the limiting rod 32. Limiting sliding grooves 5 are opened on the inner walls of the six second shielding dikes 221 and the third shielding dikes 231 near the fixed fire receiving plate 21. The limiting rod 32 slides within the limiting sliding groove 5. The cooperation between the opening and closing limiting components (limiting cylinder 3, limiting spring 31, and limiting rod 32) and the limiting sliding grooves 5 provides precise guidance and buffering for the disc's unfolding / closing process, ensuring coordinated movement of all components.

[0032] When the driving component is activated, the connecting block 44 drives the active fire-receiving plate 23 to move. As the active fire-receiving plate 23 moves, it is controlled by the opening and closing limiting component (the limiting rod 32 slides in the limiting ramp groove 5, and the limiting spring 31 provides elastic buffering). Due to the ramp structure of the limiting ramp groove 5, the limiting rod 32 slides into the limiting ramp groove 5, thereby sequentially driving the six driven fire-receiving plates 22 to unfold synchronously. Each driven fire-receiving plate slides radially along the annular groove 12 until it is spliced ​​with the fixed fire-receiving plate 21 to form a complete circle, creating a large-area fire-receiving surface. The unfolded fire-receiving plate has multiple layers of shielding. The three-dimensional structure of the fire-receiving plates 21, 212 (fixed fire-receiving plate), 221 (increasing diameter), and 231 (intercepting splashes) effectively expands the protection range. When the driving component reverses its operation, the active fire-receiving plate 23 drives each passive fire-receiving plate 22 to slide in the opposite direction and retract to the initial position in sequence. During the retraction, the limiting rod 32 slides in the limiting slope groove 5 in the opposite direction and slides out of the limiting slope groove 5. The passive fire-receiving plates 22 retract towards the fixed fire-receiving plate 21 in sequence and finally return to a compact state, which is convenient for storage and transportation.

[0033] This application utilizes the sliding fit between the slot and the annular groove 12 to allow the passive fire receiving plate 22 and the active fire receiving plate 23 to freely adjust their unfolding area according to the size of the working space. This allows for flexible adaptation to both narrow pipe interiors and open high-altitude platforms, thus solving the problem of fixed dimensions in traditional fire receiving plates.

[0034] Furthermore, the multi-layered protective dikes are distributed in a stepped manner, forming a three-dimensional protective structure, which significantly improves the level of safety protection and reduces the risk of fire and burns to personnel.

[0035] Furthermore, the design of the opening and closing limiting components and the limiting slip groove 5 ensures precise positioning of the plate during unfolding and retraction, preventing wobbling or misalignment. The buffering effect of the limiting spring 31 reduces mechanical wear, extends service life, and ensures long-term stable operation. This design not only improves the ease of operation and safety of the fire receiving plate but also significantly reduces maintenance costs, achieving a perfect combination of high-efficiency protection and economy.

[0036] Please see the appendix Figure 1 , 3 As shown in Figure 6, the drive component includes a driven gear ring 41, a bearing, and a driving gear 42. The design of the drive component deeply integrates gear transmission, bearing support, and mechanical connection to form a precise and efficient power transmission system. The driven gear ring 41 is sleeved outside the bearing, and the bearing is sleeved inside the fixed ring 11. The bearing sleeved inside the fixed ring 11 provides stable rotational support for the driven gear ring 41, reduces frictional resistance during its rotation, and ensures smooth transmission. The driving gear 42 meshes with the driven gear ring 41 on one side and is connected to the output end of the drive motor. As the core component for power input, the driving gear 42 is directly connected to the output end of the drive motor, converting the rotational power of the motor into mechanical transmission. Gear 42 meshes with driven gear ring 41, and power is transmitted through the meshing of the teeth between the gears. The drive motor is embedded in the top of the annular groove 12. A connecting ring 43 is provided on the top of the driven gear ring 41. One side of the connecting ring 43 is connected to the bottom of the active fire receiving plate 23 near the fire receiving tube 1 through a connecting block 44. The connecting ring 43 on the top of the driven gear ring 41 is tightly connected to the active fire receiving plate 23 through the connecting block 44, which accurately transmits the power of the gear transmission to the fire receiving plate assembly 2, so that the active fire receiving plate 23 can rotate and slide according to the driving requirements. This structural design organically combines the various links of power generation, transmission and execution, and the various components cooperate with each other to ensure the stable operation and efficient operation of the fire receiving plate assembly.

[0037] When the fire-receiving plate assembly needs to be unfolded or retracted, the drive motor starts, and the motor's output shaft drives the drive gear 42 to rotate. Since the drive gear 42 meshes with the driven gear ring 41, the rotation of the drive gear 42 causes the driven gear ring 41 to rotate around the bearing. The bearing ensures the driven gear ring 41 remains stable during rotation, reducing wobbling and frictional losses. As the driven gear ring 41 rotates, its top connecting ring 43 also rotates. The connecting ring 43 is connected to the active fire-receiving plate 23 via the connecting block 44, thereby causing the active fire-receiving plate 23 to slide along the annular groove 12 on the fixed ring 11. During the sliding process, the active fire-receiving plate 23 pulls the six driven fire-receiving plates 22 to unfold or push them to retract sequentially through the opening and closing limiters, ultimately achieving the unfolding or retraction of the fire-receiving plate assembly. When the operation needs to be stopped, the drive motor stops, the drive gear 42 and driven gear ring 41 lose their power source and stop rotating, and the fire-receiving plate assembly remains in its current state.

[0038] The gear transmission of this application has the characteristics of accurate transmission ratio and high transmission efficiency. The meshing of the driving gear 42 and the driven gear ring 41 can ensure stable and accurate power transmission, avoid power loss and transmission error, and ensure the consistency and accuracy of each opening and closing action of the fire receiving plate assembly 2.

[0039] Furthermore, the drive motor is embedded in the top of the annular groove 12, and the driven gear ring 41, bearings and other components are arranged around the fixed ring 11. The overall structure is compact, does not occupy too much external space, can adapt to various narrow working environments, and facilitates the installation and use of the fire receiving plate.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotatable and retractable fire-receiving plate, comprising a fire-receiving cylinder (1) and a fire-receiving plate body assembly (2), characterized in that: The fire-receiving tube (1) is an I-shaped structure with an open top and a hollow interior. A fixing ring (11) is integrally connected to the top of the fire-receiving tube (1). An annular groove (12) is provided on the outer circumferential wall of the fixing ring (11). A driving component for unfolding the fire-receiving plate assembly (2) is provided inside the annular groove (12).

2. The rotatable and collapsible fire-receiving tray according to claim 1, characterized in that: The fire-receiving plate assembly (2) includes a fixed fire-receiving plate (21), a driven fire-receiving plate (22), and an active fire-receiving plate (23). The fixed fire-receiving plate (21), the driven fire-receiving plate (22), and the active fire-receiving plate (23) are connected by an opening and closing limiting member. There are a total of six driven fire-receiving plates (22). The fixed fire-receiving plate (21), the driven fire-receiving plate (22), and the active fire-receiving plate (23) are all arranged in a fan-shaped structure. The fixed fire-receiving plate (21) is connected to the six driven fire-receiving plates (22) and the active fire-receiving plate (23). 3) The components are assembled into a circular structure and are distributed sequentially on the outer circumference of the fixing ring (11) at the top of the fire receiving tube (1). The fixing fire receiving plate (21) is provided with a first shielding dam (212) on the top of the outer circumference of the fire receiving tube (1) on one side. The fixing fire receiving plate (21) has a first slot (213) at the bottom of one end near the fire receiving tube (1). The fixing fire receiving plate (21) is fixedly engaged with the fixing ring (11) at the top of the annular groove (12) through the first slot (213).

3. The rotatable and collapsible fire-receiving tray according to claim 2, characterized in that: The six driven fire receiving plates (22) are arranged in a stepped manner at the bottom of the fixed fire receiving plate (21). Each driven fire receiving plate (22) has a second shielding dam (221) connected to the top of its outer periphery on the side away from the fixed fire receiving plate (21) and the fixed ring (11). The six second shielding dams (221) are distributed in an increasing diameter manner. Each driven fire receiving plate (22) has a second slot (222) at the bottom of its end near the fire receiving tube (1). The six driven fire receiving plates (22) slide and engage with the fixed ring (11) at the top of the annular groove (12) through the second slot (222).

4. The rotatable and collapsible fire-receiving tray according to claim 3, characterized in that: The active fire receiving plate (23) is located at the bottom of the last passive fire receiving plate (22). The active fire receiving plate (23) is connected to the top of the outer perimeter of the side away from the passive fire receiving plate (22) and the fixed ring (11) with a third shielding dam (231). The active fire receiving plate (23) is provided with a third slot (232) at the bottom of the end near the fire receiving tube (1). The active fire receiving plate (23) slides and engages with the fixed ring (11) at the top of the annular groove (12) through the third slot (232).

5. The rotatable and collapsible fire-receiving tray according to claim 4, characterized in that: The opening and closing limiting components are embedded and distributed on the outer walls of the top corners of the first shielding dike (212), multiple second shielding dikes (221) and the third shielding dike (231). Each opening and closing limiting component includes a limiting cylinder (3), a limiting spring (31) and a limiting rod (32). One end of the limiting spring (31) is connected to the inner wall of the limiting cylinder (3), and the other end of the limiting spring (31) is connected to the limiting rod (32).

6. The rotatable and collapsible fire-receiving tray according to claim 1, characterized in that: The driving component includes a driven gear ring (41), a bearing, and a driving gear (42). The driven gear ring (41) is sleeved outside the bearing, and the bearing is sleeved inside the fixed ring (11). The driving gear (42) meshes with one side of the driven gear ring (41). The driving gear (42) is connected to the output end of the drive motor. The drive motor is embedded in the top of the annular groove (12). A connecting ring (43) is provided on the top of the driven gear ring (41). One side of the connecting ring (43) is connected to the bottom of the active fire receiving plate (23) near the fire receiving tube (1) through a connecting block (44).

7. The rotatable and collapsible fire-receiving tray according to claim 5, characterized in that: Each of the six second shielding cofferdams (221) and the third shielding cofferdam (231) has a limiting landslide groove (5) on the inner wall of the end near the fixed fire receiving plate (21), and the limiting rod (32) slides within the limiting landslide groove (5).

8. The rotatable and collapsible fire-receiving tray according to claim 1, characterized in that: The top of the fire-receiving tube (1) is connected to a lifting hoist via a connecting frame.

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