Fan control box with foldable box cover

Abstract

The utility model discloses a fan control box with a foldable box cover. The fan control box comprises a box body assembly, the closing cover is arranged on the box body assembly; the folding mechanism is arranged on the closing cover; the telescopic mechanism is arranged on the closing cover and connected with the folding mechanism, and the telescopic mechanism pulls the folding mechanism to drive the closing cover to be folded when the closing cover is opened; according to the fan control box with the foldable box cover, the problems that in the prior art, the space of a fire-fighting electrical cabin of a container is narrow, the narrow space possibly causes that the box cover of the fan control box cannot be completely opened due to the fact that the rotating radius is too large when the box cover is opened, and follow-up maintenance operation becomes difficult are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage fire protection, in particular to a fan control box with a foldable lid. Background Art

[0002] In an energy storage system, as an important carrier of lithium batteries, the internal temperature of an energy storage container changes with the operating conditions during normal use. If the temperature inside the container is too high, combustible gases may be generated, posing a safety hazard. To address such situations, a fire-fighting smoke exhaust fan system is usually installed in the energy storage battery box, and the fan control box is a key circuit device for controlling this system. The fan control box is mainly used to install various controllers and provide effective protection for these controllers.

[0003] Currently, the fan control boxes on the market are usually simple metal boxes installed in the fire protection compartment of the energy storage battery box. However, due to differences in the structures of energy storage containers manufactured by different manufacturers, the space in the fire protection electrical compartment of some containers is relatively narrow. This narrow space may cause the lid of the fan control box to not fully open due to an excessive turning radius when it is opened, making subsequent maintenance operations difficult. Therefore, based on the above problems, the existing fan control boxes are difficult to meet the usage requirements in narrow spaces. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a fan control box with a foldable lid, which solves the problem that the space in the fire protection electrical compartment of the existing technology container is relatively narrow, and this narrow space may cause the lid of the fan control box to not fully open due to an excessive turning radius when it is opened, making subsequent maintenance operations difficult.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fan control box with a foldable lid, comprising:

[0006] A box body assembly;

[0007] A closing lid, which is arranged on the box body assembly;

[0008] At least one folding mechanism, which is arranged on the closing lid;

[0009] A telescopic mechanism, which is arranged on the closing lid and connected to the folding mechanism. The telescopic mechanism pulls the folding mechanism to drive the closing lid to fold when the closing lid is opened.

[0010] Preferably, the box body assembly includes a box body, the outer wall of the box body is fixedly connected with a hem, and the outer wall of the hem is fixedly connected with a first connector.

[0011] Preferably, the closing cover includes a cover plate, an outer wall on the inner side of the cover plate is fixedly connected with a second connector, the second connector is rotatably connected with the first connector, and the cover plate is disconnected from the middle and connected through a folding mechanism.

[0012] Preferably, the folding mechanism includes a hinge fixedly connected at the disconnected position in the middle of the cover plate. A hinge is rotatably connected to a side of the hinge away from the cover plate. The hinge is rotatably connected with a connecting rod, and one end of the connecting rod away from the hinge is rotatably connected with a connecting piece, and a piston is rotatably connected to an inner wall of the connecting piece.

[0013] Preferably, the telescopic mechanism includes a spring fixedly connected to an end of the piston away from the connecting piece. An air cylinder is arranged on an outer wall of the spring, the air cylinder is fixed on an outer wall of the closing cover, and an outer wall of the piston is slidably connected with an inner wall of the air cylinder.

[0014] Preferably, the air cylinder includes a cylinder body arranged outside the spring. A hollowed-out plate is fixedly connected to an outer wall of the cylinder body. One end of the cylinder body communicates with a tapered opening, and the cylinder body is fixedly connected to a side of the cover plate away from the box body assembly.

[0015] Preferably, the piston includes a plug body. An adapter head is fixedly connected to a side of the plug body away from the spring. The adapter head is rotatably connected to an end of the connecting piece away from the connecting rod, and an inner wall of the cylinder body is slidably connected with an outer wall of the plug body.

[0016] Preferably, the hinge includes a first connecting rod. One end of the first connecting rod is rotatably connected to one side of the hinge. The other end of the first connecting rod is rotatably connected with a second connecting rod. The other end of the second connecting rod is rotatably connected to the other side of the hinge. A cross beam is fixedly connected to an outer wall of the first connecting rod.

[0017] Preferably, the cross beam is rotatably connected to one end of the connecting rod.

[0018] It can be seen from the above technical solutions that the present utility model has the following beneficial effects:

[0019] The fan control box with a foldable lid can be folded and retracted in a narrow fire protection electrical compartment by setting a folding mechanism and a telescopic mechanism on the closed lid, greatly reducing the turning radius of the lid. Thus, it solves the problem that the lid of the traditional fan control box cannot be fully opened in a small space, facilitating subsequent maintenance operations. The design of the folding mechanism enables the lid to be opened or closed flexibly, avoiding the situation where effective operations cannot be carried out due to space limitations. This design not only improves the installation flexibility of the control box but also provides great convenience for daily maintenance and repair, reducing the operation difficulty. The fan control box of the present utility model can adapt to energy storage containers with different structures, ensuring that the lid can still be effectively opened in a small space for timely maintenance and detection, which helps to quickly eliminate faults and potential hazards, thereby improving the overall safety of the energy storage system. Through the ingenious design of the telescopic mechanism, the wear of the lid is reduced, and the probability of mechanical failures caused by frequent opening and closing is lowered, effectively extending the service life of the fan control box. The combined folding mechanism and telescopic mechanism are closely integrated and structurally stable, ensuring the operational stability of the lid when it is opened or closed, and avoiding the failure of the control box function caused by loose or faulty components. It solves the problem that the space of the fire protection electrical compartment of the existing technology container is relatively narrow, and this narrow space may cause the lid of the fan control box to not be fully opened due to too large a turning radius when it is opened, making subsequent maintenance operations difficult. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is a schematic diagram of the hinge and air cylinder structure of the present utility model;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Figure 4 is a schematic diagram of the piston and spring structure of the present utility model;

[0024] Figure 5 is a schematic diagram of the air cylinder structure of the present utility model;

[0025] Figure 6 is a schematic diagram of the box body assembly structure of the present utility model;

[0026] Figure 7 is a schematic diagram of the closed lid structure of the present utility model.

[0027] In the figure: 1. Box assembly; 11. Box body; 12. Hem; 13. First connector; 2. Closing cover; 21. Cover plate; 22. Second connector; 3. Folding mechanism; 31. Hinge; 32. Hinge; 321. First connecting rod; 322. Second connecting rod; 323. Cross beam; 33. Connecting rod; 34. Connector; 35. Piston; 351. Piston body; 352. Adapter head; 4. Telescopic mechanism; 41. Spring; 42. Air cylinder; 421. Cylinder body; 422. Hollow plate; 423. Tapered opening. Detailed implementation

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] As Figure 1-Figure 7 shown, a fan control box with a foldable lid includes a box assembly 1, a closing cover 2, at least one folding mechanism 3, and a telescopic mechanism 4. The box assembly 1 serves as the basic structure of the entire fan control box, used to accommodate control components and provide structural support. The closing cover 2 is installed on the top of the box assembly 1 to close the control box and protect the internal components from the external environment. The folding mechanism 3 is installed at a specific position of the closing cover 2. When the closing cover 2 is in the open state, the telescopic mechanism 4 is linked with the folding mechanism 3, enabling the closing cover 2 to be folded, thereby saving space and improving the convenience of operation.

[0030] The closing cover 2 of the fan control box realizes the folding function through the folding mechanism 3 and the telescopic mechanism 4. When the user opens the closing cover 2, the telescopic mechanism 4 pulls the folding mechanism 3, causing the closing cover 2 to fold from the middle position to both sides. The folding mechanism 3 includes multiple connecting elements and hinge structures to ensure a smooth folding process and the stability of the closing cover 2. The folding of the closing cover 2 not only improves the space utilization rate of the control box but also facilitates the maintenance and inspection of the internal components by the user.

[0031] By setting a folding mechanism 3 and a telescopic mechanism 4 on the closing cover 2, the box cover can be folded and contracted in a narrow fire-fighting electrical compartment, greatly reducing the turning radius of the box cover, thus solving the problem that the box cover of the traditional fan control box cannot be fully opened in a narrow space, facilitating subsequent maintenance operations. The design of the folding mechanism 3 enables the box cover to be opened or closed flexibly, avoiding the situation where effective operations cannot be carried out due to space limitations. This design not only improves the installation flexibility of the control box but also provides great convenience for daily maintenance and repair, reducing the operation difficulty. The design of the fan control box can adapt to energy storage containers with different structures, ensuring that the box cover can still be effectively opened in a narrow space for timely maintenance and detection, which helps to quickly eliminate faults and potential hazards, thus improving the overall safety of the energy storage system. Through the ingenious design of the telescopic mechanism 4, the wear of the box cover is reduced, and the probability of mechanical failures caused by frequent opening and closing is lowered, effectively extending the service life of the fan control box. The adopted folding mechanism 3 and the telescopic mechanism are closely combined with a stable structure, ensuring the operation stability of the box cover when opening or closing and avoiding the failure of the control box function caused by component loosening or malfunction.

[0032] In this embodiment, the specific form of the folding mechanism 3 can be replaced or adjusted according to actual needs. For example, the hinge structure in the folding mechanism 3 can adopt different types of connecting parts or a more compact design to adapt to different space limitations. In addition, the power element of the telescopic mechanism 4 can be replaced with an electric drive device to further improve the automation level of the operation.

[0033] The box body assembly 1 includes a box body 11. The outer wall of the box body 11 is fixedly connected with a hem 12, and the outer wall of the hem 12 is fixedly connected with a first connector 13. The box body 11 is the main structural part of the fan control box, and a hem 12 is provided on its outer wall to increase the structural strength of the box body and provide additional installation space. The first connector 13 is fixedly connected to the hem 12 and is used to cooperate with the second connector 22 of the closing cover 2, enabling the closing cover 2 to be stably connected to the box body 11 and remain smooth when opening and closing. The design of the hem 12 and the first connector 13 enhances the structural stability of the box body 11 and provides a more reliable connection method for the closing cover, thus ensuring the sealing performance and durability of the fan control box during use. The hem 12 can also protect the edge of the box body 11 from wear and damage, improving the overall service life of the equipment.

[0034] In practical applications, the shape and size of the hem 12 can be adjusted according to the specific requirements of the box body, and the first connector 13 can also adopt different types of connection methods, such as bolt connection or welding, to meet different design requirements and installation conditions.

[0035] The closing cover 2 includes a cover plate 21, and the inner and outer walls of the cover plate 21 are fixedly connected to a second connector 22, which is rotatably connected to the first connector 13. The cover plate 21 is disconnected from the middle and connected via a folding mechanism 3. The cover plate 21 is hingedly connected to the first connector 13 of the box body 11 via the second connector 22, so that the closing cover 2 can be opened and closed around the connection. A folding structure is provided in the middle of the cover plate 21, so that the cover plate 21 can be disconnected from the middle when opened and folded via the folding mechanism 3, thereby achieving a space-saving effect. By designing the cover plate 21 of the closing cover 2 as a foldable structure, the present invention significantly reduces the space occupied by the closing cover in the open state, while improving the flexibility of user operation. The design of the second connector 22 and the first connector 13 ensures a stable connection and reliable operation of the closing cover.

[0036] The folding design of the cover 21 can adopt different folding forms, such as multi-stage folding or sliding folding, and the connection method between the second connector 22 and the first connector 13 can also adopt a more complex rotation mechanism to achieve more flexible operation.

[0037] The folding mechanism 3 includes a hinge 31 fixedly connected to the middle disconnected portion of the cover 21. The side of the hinge 31 facing away from the cover 21 is rotatably connected to a hinge 32. The hinge 32 is rotatably connected to a connecting rod 33. The end of the connecting rod 33 facing away from the hinge 32 is rotatably connected to a connector 34. The inner wall of the connector 34 is rotatably connected to a piston 35. The folding mechanism 3 is the core component that enables the cover 21 to fold. The hinge 31 is fixed to the middle disconnected portion of the cover 21, allowing the cover to fold at this location. The hinge 32 is connected to the hinge 31, and through its rotation, the connecting rod 33 drives the cover 21 to fold smoothly. The connector 34 is connected to the piston 35, and the movement of the piston 35 controls the operation of the folding mechanism, ensuring smooth folding when the cover 21 is opened. By designing the linkage structure between the hinge 31 and the hinge 32, the present invention enables reliable folding of the cover 21 and improves the space utilization of the fan control box. The design of the connecting rod 33 and the connecting member 34 further enhances the stability of the folding mechanism 3 , so that the cover 21 remains stable during the folding and unfolding process, thereby avoiding damage caused by improper operation.

[0038] The hinge 31 can be formed using various hinge structures, such as concealed hinges or reinforced hinges, to enhance the aesthetics or load-bearing capacity of the system. The length and material of the connecting rod 33 can be adjusted based on actual use to suit different operating environments and requirements.

[0039] The telescopic mechanism 4 includes a spring 41 fixedly connected to one end of the piston 35 away from the connecting member 34. An air cylinder 42 is provided on the outer wall of the spring 41. The air cylinder 42 is fixed to the outer wall of the closing cover 2. The outer wall of the piston 35 is slidably connected to the inner wall of the air cylinder 42. Under the action of the elastic force provided by the spring 41, the telescopic mechanism 4 pushes the piston 35 to slide along the inner wall of the air cylinder 42, thereby driving the connecting member 34 and realizing the folding and unfolding of the cover plate 21 through the folding mechanism 3. The design of the air cylinder 42 ensures the smoothness and positioning accuracy of the piston 35 during movement, avoiding deviation caused by vibration or external force. Through the combined design of the spring 41 and the air cylinder 42, the telescopic mechanism 4 can provide continuous and stable power to ensure the reliable operation of the folding mechanism 3. In addition, the air cylinder 42 is fixed to the outer wall of the closing cover 2, which helps to improve the overall stability of the structure, and enhances the durability and safety of the system.

[0040] The material and elastic coefficient of the spring 41 can be selected according to actual needs. For example, a steel spring can be used to improve the bearing capacity, or a damping spring can be used to reduce the impact during movement. The size and shape of the air cylinder 42 can also be adjusted according to the design requirements to ensure the best performance of the system.

[0041] The air cylinder 42 includes a cylinder body 421 disposed outside the spring 41. A hollowed-out plate 422 is fixedly connected to the outer wall of the cylinder body 421. One end of the cylinder body 421 communicates with a tapered opening 423. The cylinder body 421 of the air cylinder 42 is wrapped around the outside of the spring 41 to provide external protection and support for it. The hollowed-out plate 422 is fixed to the outer wall of the cylinder body 421, increasing the overall rigidity of the air cylinder. At the same time, it provides a ventilation structure for easy maintenance when needed. The tapered opening 423 is located at one end of the cylinder body 421 and communicates with the inside of the air cylinder, enabling the piston 35 to smoothly adjust through the air flow and achieve a gentle telescopic movement. By wrapping the spring 41, the cylinder body 421 effectively protects the spring from the external environment and extends its service life. The design of the hollowed-out plate 422 not only strengthens the structural strength but also improves the heat dissipation effect, ensuring the long-term stable operation of the telescopic mechanism. The design of the tapered opening 423 optimizes the air flow control, making the operation of the telescopic mechanism 4 more stable and reducing mechanical impact and noise.

[0042] The material of the cylinder body 421 can be selected as corrosion-resistant or high-strength materials, such as aluminum alloy or stainless steel, to adapt to different working environments. The shape and opening ratio of the hollowed-out plate 422 can be adjusted according to ventilation or heat dissipation requirements to optimize the heat dissipation performance of the air cylinder. The size and shape of the tapered opening 423 can also be designed according to air flow requirements to ensure the air pressure balance inside the air cylinder and the smooth sliding of the piston.

[0043] The piston 35 includes a piston body 351. On the side of the piston body 351 away from the spring 41, there is a fixedly connected connecting head 352. The connecting head 352 is rotatably connected to the end of the connecting member 34 away from the connecting rod 33. The inner wall of the cylinder body 421 is slidably connected to the outer wall of the piston body 351. The piston 35 is slidably connected to the inner wall of the air cylinder 42 through the piston body 351, realizing the airtightness and smooth sliding inside the air cylinder. The connecting head 352 is used to firmly connect the piston 35 and the connecting member 34, while allowing a certain degree of rotation to meet the movement requirements of the folding mechanism 3. This design ensures that under the action of the telescopic mechanism 4, the cover plate 21 can be folded or unfolded smoothly. The sliding connection between the piston body 351 and the inner wall of the air cylinder 421 provides an excellent sealing effect, ensuring the air pressure regulation and smooth sliding inside the system. The rotational connection design of the connecting head 352 increases the flexibility between the piston and the folding mechanism, reduces the stress concentration of the structure, and extends the service life of the system.

[0044] The piston body 351 can adopt different sealing materials or surface coatings to improve airtightness and wear resistance, such as using a PTFE coating or a rubber sealing ring. The design of the connecting head 352 can be adjusted according to different mechanical requirements, such as using a ball hinge structure to increase the rotational freedom, or adding a buffer pad to reduce the impact force.

[0045] The hinge 32 includes a first connecting rod 321. One end of the first connecting rod 321 is rotatably connected to one side of the hinge 31. The other end of the first connecting rod 321 is rotatably connected to a second connecting rod 322. The other end of the second connecting rod 322 is rotatably connected to the other side of the hinge 31. A cross beam 323 is fixedly connected to the outer wall of the first connecting rod 321. Through the cooperation of the first connecting rod 321 and the second connecting rod 322, the hinge 32 realizes the stable folding of the cover plate 21. The first connecting rod 321 is connected to one side of the hinge 31, and the second connecting rod 322 is connected to the other side. Through the movement of these two connecting rods, the hinge 32 can flexibly adjust the angle of the cover plate 21. The cross beam 323 is fixed on the outer wall of the first connecting rod 321, providing additional structural support and enhancing the load-bearing capacity of the hinge. The connecting rod design of the hinge 32 makes the folding action of the cover plate 21 more flexible and stable. Through the combination of the first connecting rod 321 and the second connecting rod 322, multi-angle adjustment and a larger operating range are achieved. The addition of the cross beam 323 increases the strength of the hinge structure, ensuring the durability of the system under frequent operation.

[0046] The lengths and materials of the first connecting rod 321 and the second connecting rod 322 can be adjusted according to actual operation requirements. The design of the cross beam 323 can also be strengthened or simplified as needed, for example, by adding additional support structures or using high-strength materials to improve its load-bearing capacity.

[0047] The crossbeam 323 is pivotally connected to one end of the connecting rod 33. This pivotally connects the crossbeam 323 to one end of the connecting rod 33, allowing the connecting rod 33 to stably support the folding movement of the cover plate 21 during folding. This connection effectively shares the weight of the cover plate 21, preventing excessive stress from concentrating on a single component, thereby reducing mechanical wear and extending service life. The pivotally connected design of the crossbeam 323 and the connecting rod 33 further enhances the stability and durability of the folding mechanism 3.

[0048] Working process: After the closing cover 2 on the box assembly 1 is opened using the key, the stretched spring 41 contracts and pulls the piston 35. The piston 35 is linked to the connecting rod 33 through the connecting piece 34. The connecting rod 33 pulls the hinge 32 to deform, which drives the hinge 31 to fold and rotate, thereby achieving the effect of automatically rotating the closing cover 2 and reducing the rotation radius of the closing cover 2. Since one side of the air cylinder 42 is a tapered mouth 423, the piston 35 will be blocked by the air pressure when sliding in the air cylinder 42, so that the spring 41 will be buffered when pulling the piston 35, thereby reducing the rotation speed of the closing cover 2 and playing a role in protecting the closing cover 2. The hollow plate 422 can be used to fix one side of the spring 41, and due to its hollow structure, the air flow can also pass smoothly. The tapered mouth 423 will reduce the area of the air port when the air flows. The air flow rate is reduced, thereby reducing the sliding speed of the piston 35, thereby protecting the closing cover 2. The hinge 32 can form a four-bar mechanism with the hinge 31. In this way, when the crossbeam 323 is pulled, the second connecting rod 322 can be rotated together by rotating the first connecting rod 321, thereby achieving the effect of rotating the hinge 31. The outer wall of the plug body 351 will fit the inner wall of the cylinder 421. In this way, when the plug body 351 moves, it will discharge the air and reduce its sliding speed by squeezing the air. The configuration box 1 can play the role of installing a circuit board. The circuit equipment for controlling the operation of the fan will be installed in the box body 11, thereby playing the role of protecting the circuit equipment. The second connector 22 will be rotatably connected to the first connector 13. In this way, when the closing cover 2 is folded, the closing cover 2 is rotated again to rotate the closing cover 2 with a reduced radius.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fan control box with a foldable lid, characterized in that, Comprising: A box assembly (1); A closing cover (2), which is arranged on the box assembly (1); At least one folding mechanism (3), which is arranged on the closing cover (2); A telescopic mechanism (4), which is arranged on the closing cover (2) and connected to the folding mechanism (3), and the telescopic mechanism (4) pulls the folding mechanism (3) to drive the closing cover (2) to fold when the closing cover (2) is opened.

2. The blower control box with a foldable lid according to claim 1, characterized in that: The box assembly (1) includes a box body (11), and a hem (12) is fixedly connected to the outer wall of the box body (11), and a first connector (13) is fixedly connected to the outer wall of the hem (12).

3. The blower control box with a foldable lid according to claim 2, characterized in that: The closing cover (2) includes a cover plate (21), and a second connector (22) is fixedly connected to the inner and outer walls of the cover plate (21), and the second connector (22) is rotatably connected to the first connector (13), and the cover plate (21) is disconnected from the middle and connected by the folding mechanism (3).

4. The blower control box with a foldable lid according to claim 3, characterized in that: The folding mechanism (3) includes a hinge (31) fixedly connected to the middle disconnection position of the cover plate (21), a hinge (32) is rotatably connected to the side of the hinge (31) away from the cover plate (21), the hinge (32) is rotatably connected to a connecting rod (33), and a connecting member (34) is rotatably connected to the end of the connecting rod (33) away from the hinge (32), and a piston (35) is rotatably connected to the inner wall of the connecting member (34).

5. The fan control box with a foldable lid according to claim 4, characterized in that: The telescopic mechanism (4) includes a spring (41) fixedly connected to the end of the piston (35) away from the connecting member (34), an air cylinder (42) is arranged on the outer wall of the spring (41), the air cylinder (42) is fixed to the outer wall of the closing cover (2), and the outer wall of the piston (35) is slidably connected to the inner wall of the air cylinder (42).

6. The blower control box with a foldable lid according to claim 5, characterized in that: The air cylinder (42) includes a cylinder body (421), the cylinder body (421) is arranged outside the spring (41), a hollow plate (422) is fixedly connected to the outer wall of the cylinder body (421), one end of the cylinder body (421) is communicated with a conical opening (423), and the cylinder body (421) is fixedly connected to the side of the cover plate (21) away from the box assembly (1).

7. The blower control box with a foldable lid according to claim 6, characterized in that: The piston (35) includes a plug body (351), a connecting head (352) is fixedly connected to the side of the plug body (351) away from the spring (41), the connecting head (352) is rotatably connected to the end of the connecting member (34) away from the connecting rod (33), and the inner wall of the cylinder body (421) is slidably connected to the outer wall of the plug body (351).

8. A fan control box with a foldable lid according to claim 4, characterized in that: The hinge (32) includes a first connecting rod (321), one end of the first connecting rod (321) is rotatably connected to one side of the hinge (31), the other end of the first connecting rod (321) is rotatably connected to a second connecting rod (322), the other end of the second connecting rod (322) is rotatably connected to the other side of the hinge (31), and a cross beam (323) is fixedly connected to the outer wall of the first connecting rod (321).

9. The blower control box with a foldable lid according to claim 8, characterized in that: The cross beam (323) is rotatably connected to one end of the connecting rod (33).

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