Intelligent fireproof and explosion-proof device of air conditioner ventilation system

Abstract

The invention discloses an intelligent fireproof and explosion-proof device of an air conditioner ventilation system, relates to the technical field of air conditioner ventilation systems, and aims to solve the technical problems that a valve driven by a current motor cannot work normally due to power failure and the like, fire spreading and explosion expansion are possibly caused, and serious casualties and property loss are caused. Comprising a U-shaped fixing frame, a cover plate is fixedly installed at the top of the fixing frame, a protection assembly capable of being rotationally adjusted is installed between the fixing frame and the cover plate, and a reversing part connected with the protection assembly is fixedly arranged at the top of the fixing frame; the torsion spring in the reversing part provides a certain elastic assisting and positioning effect for rotation of the protection plate, when a control module for controlling the driving motor to work is accidentally powered off in a fire, the control module can be helped to rapidly rotate to a designated position through torsion of the torsion spring, the reset speed of the protection plate is increased, and the automatic reset function is added; and the structure matching effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning and ventilation systems, and more specifically to an intelligent fire and explosion prevention device for air conditioning and ventilation systems. Background Art

[0002] In air conditioning and ventilation systems, fire and explosion prevention devices play a vital role. Among them, valves, as key components for controlling ventilation airflow, need to be closed in time in dangerous situations such as fire or explosion to prevent the spread of danger.

[0003] However, in the existing fire and explosion prevention devices of air conditioning and ventilation systems, valves are usually driven by motors. When a fire occurs, if the motor fails to work properly due to power failure or other reasons, the controlled valves cannot be closed, and timely and accurate measures cannot be taken, which may cause the fire to spread and the explosion to expand, causing serious casualties and property losses. In view of this, we propose an intelligent fire and explosion prevention device for air conditioning and ventilation systems. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent fire and explosion prevention device for an air-conditioning and ventilation system to solve the technical problem that the current motor-driven valve cannot work normally due to power failure and other reasons, which may cause the fire to spread and the explosion to expand, causing serious casualties and property losses.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an intelligent fire and explosion prevention device for an air conditioning and ventilation system, comprising a U-shaped fixing frame, a cover plate is fixedly installed on the top of the fixing frame, a rotatably adjustable protection component is installed between the fixing frame and the cover plate, and a reversing member connected to the protection component is fixedly arranged on the top of the fixing frame;

[0006] The protection component includes a driving motor, the output end of the driving motor is connected to a driving rod, a protection plate is sleeved on the outer side of the driving rod, a positioning plate is fixedly provided at the bottom of the driving rod, and a latch is fixedly provided at the bottom of the driving rod;

[0007] The reversing member includes a limiting sleeve and a fixing rod fixed on the top of the fixing frame, a torsion spring is provided on the outer sleeve of the fixing rod, a plug-in block with a socket is integrally formed at the top extruded end of the torsion spring, and the plug-in pin is plug-connected to the plug-in block, and two clamping strips for clamping the bottom protruding end of the torsion spring are fixedly provided on the bottom inner wall of the limiting sleeve.

[0008] Preferably, two resistance members penetrating the side walls of the cover plate are fixedly mounted on the top side of the cover plate, and the lower end side surfaces of the resistance members can fit with the side surfaces of the protective plate in the open state.

[0009] Preferably, the resistance member includes an outer shell and a shell cover, an electromagnetic block is fixedly provided at the bottom of the shell cover, a magnetic block cooperating with the electromagnetic block is fitted on the top side of the cover plate located at the inner cavity of the outer shell, and a limit plate is fixedly provided at the bottom of the magnetic block.

[0010] Preferably, U-shaped seats are fixedly provided on the narrow sides of the limiting plate on both sides which are away from each other, and rollers are rotatably installed between the facing surfaces of the U-shaped seats.

[0011] Preferably, guide rails that fit with rollers on both sides are fixedly provided on the facing surfaces of the housing, and the guide rail groove surfaces of the guide rails are smooth surfaces coated with lubricating oil.

[0012] Preferably, the sides of the two limit plates facing away from the protective plate are configured with arc-shaped guide surfaces, and the guide surfaces are smooth surfaces.

[0013] Preferably, the protective plate comprises a hollow tube, and two parallel baffles are integrally formed on the outer side surface of the hollow tube, and the sides of the two baffles are provided with positioning grooves communicating with the inner cavity of the hollow tube.

[0014] Preferably, two positioning plates combined with the positioning grooves on both sides are fixedly provided on the outer side of the driving rod, and the interior of the driving rod is structured with a cavity.

[0015] Preferably, the opposite sides of the shell are fixedly provided with limiting strips with arc-shaped side ends, and the opposite sides of the shell cover are fixedly provided with elastic limiting fasteners, and the limiting fasteners are snap-connected to the limiting strips.

[0016] Preferably, the facing surfaces of the fixing frame are fixedly provided with shift bars that fit with both sides of the protective plate, and the surfaces where the shift bars fit with the protective plate are both inclined surfaces.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention provides a certain elastic assistance and positioning effect for the rotation of the protective plate through the torsion spring in the reversing part. When the control module controlling the driving motor is accidentally powered off in a fire, the torsion force of the torsion spring can help it to quickly rotate to the specified position, so that the whole can automatically achieve the effect of closed protection in the case of power failure. The addition of passive protection structure can effectively improve the flexibility of structural coordination, prevent the shock wave generated by fire or explosion from spreading through the ventilation system, and play a role in fire prevention and explosion prevention.

[0019] 2. The present invention can also limit the protective plate in the open and closed states through the design of the resistance piece, so that the drive motor can maintain smooth air circulation in the ventilation system even in the event of a normal power outage due to a fault. When the electromagnetic block is energized, the magnetism generated can attract the magnetic block to move up quickly, causing the limit plate to move up and change its position, thereby reducing the time required to block the automatic flipping of the protective plate and improving the automatic response speed in a fire. At the same time, the setting of the ball bearings on the protective plate can reduce the friction force of the limit plate when it moves up, further improving the response speed and reducing the impact on the flipping speed of the protective plate.

[0020] 3. The protective plate in the present invention adopts a structure in which a hollow tube and two parallel baffles are integrally formed, and a positioning groove is opened on the side of the baffle, which is combined with the positioning plate on the outside of the driving rod. This structural design not only enhances the strength and stability of the protective plate, enabling it to withstand a certain impact force and effectively block the high temperature, flame and shock wave generated by fire and explosion, but also facilitates the installation and connection of the protective plate and the driving rod, ensuring the synchronization and accuracy of the protective plate during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the top structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the partial structure of the present invention;

[0024] Figure 4 for Figure 2 A schematic diagram of the structure of part A in the middle;

[0025] Figure 5 for Figure 2 Schematic diagram of the cutaway structure;

[0026] Figure 6 for Figure 5 A schematic diagram of the structure of part B in the middle;

[0027] Figure 7 for Figure 5 Schematic diagram of the cutaway structure;

[0028] Figure 8 for Figure 6 Schematic diagram of the structure of part C in the middle

[0029] Fig. 9 The figure is a schematic diagram of a usage state of the present invention.

[0030] Description of the numbers in the figure:

[0031] 1. Fixed frame; 101. Cover plate; 102. Shift bar; 103. Dust cover; 2. Protection assembly; 201. Drive motor; 202. Drive rod; 203. Positioning plate; 204. Latch; 205. Cavity; 3. Protection plate; 301. Hollow tube; 302. Baffle; 303. Positioning groove; 304. Ball; 4. Reversing member; 401. Limit sleeve; 402. Fixed rod; 403. Torsion spring; 404. Plug-in block; 405. Positioning bar; 5. Resistance member; 501. Shell; 502. Shell cover; 503. Guide rail; 504. Limit bar; 505. Limit fastener; 6. Electromagnetic block; 7. Magnetic block; 701. Limit plate; 702. U-shaped seat; 703. Roller; 704. Guide surface. DETAILED DESCRIPTION

[0032] like Figures 1 to 9 As shown, the present invention relates to an intelligent fireproof and explosion-proof device for an air-conditioning and ventilation system, comprising a U-shaped fixed frame 1, a cover plate 101 is fixedly installed on the top of the fixed frame 1, a rotatable and adjustable protection component 2 is installed between the fixed frame 1 and the cover plate 101, and a reversing member 4 connected to the protection component 2 is fixedly arranged on the top of the fixed frame 1; by installing the fixed frame 1 on the inner wall of the pipe of the ventilation system, the opening or closing of the pipe can be controlled under the action of the protection component 2, and the setting of the reversing member 4 can control the automatic rotation of the protection component 2, thereby improving the diversity of structural control.

[0033] The protection component 2 includes a driving motor 201, the output end of the driving motor 201 is connected to a driving rod 202, a protective plate 3 is sleeved on the outer side of the driving rod 202, a positioning plate 203 is fixedly provided at the bottom of the driving rod 202, and a latch 204 is fixedly provided at the bottom of the driving rod 202; the protection plate 3 can be driven to flip through the operation of the driving motor 201 to achieve the control of the pipeline opening or closing state, and the driving motor 201 is connected to the external control module at the same time, and when the monitoring module inside the pipeline detects air abnormalities, it can respond in time and control the driving motor 201 to work in time to achieve the effect of quickly closing the pipeline. Such module structures are all existing technical structures and are not described in detail here. A dust-proof dust cover 103 is also installed on the top of the cover plate 101 to prevent dust from contacting the driving motor 201, and the driving motor 201 is a DC brushless motor, which does not affect the rotation of the driving rod 202 when the power is off.

[0034] The reversing member 4 comprises a limiting sleeve 401 and a fixing rod 402 fixed on the top of the fixing frame 1, a torsion spring 403 is sleeved on the outer side of the fixing rod 402, a plug-in block 404 with a plug hole is integrally formed at the top extruded end of the torsion spring 403, and the plug pin 204 is plugged and connected with the plug-in block 404, and two clamping strips 405 for clamping the protruding end of the bottom of the torsion spring 403 are fixed on the bottom inner wall of the limiting sleeve 401; the installation position of the torsion spring 403 can be limited by the setting of the limiting sleeve 401 and the fixing rod 402, so as to achieve easy As to the assembly effect, the connection between the plug-in block 404 at the end of the torsion spring 403 and the plug pin 204 can realize the combination of the driving rod 202 and the torsion spring 403, so that when the driving rod 202 rotates, the torsion spring 403 can be deflected and the elastic potential energy can be stored, so that the protective plate 3 can automatically rotate and reset under this potential energy. In this way, the resetting speed of the protective plate 3 can be accelerated when the protective component 2 is working, and the protective plate 3 can also be controlled to automatically reset when the protective component 2 cannot work, thereby improving the flexibility of the overall structural coordination.

[0035] In an embodiment of the present invention, two resistance members 5 penetrating the side walls of the cover plate 101 are fixedly installed on the top side of the cover plate 101, and the lower end side of the resistance member 5 can be fitted with the side of the protective plate 3 in the open state; the protective plate 3 is limited by the resistance member 5 so that the open and closed state can be maintained in daily use without affecting the ventilation effect.

[0036] In an embodiment of the present invention, the resistance member 5 includes an outer shell 501 and a shell cover 502, an electromagnetic block 6 is fixedly provided at the bottom of the shell cover 502, a cover plate 101 is located on the top side of the inner cavity of the outer shell 501, and a magnetic block 7 cooperating with the electromagnetic block 6 is installed in close contact, and a limit plate 701 is fixedly provided at the bottom of the magnetic block 7; magnetic attraction can be generated by energizing the electromagnetic block 6, thereby attracting the magnetic block 7 to move upward, thereby driving the limit plate 701 to move, thereby releasing the limit on the protective plate 3.

[0037] In the embodiment of the present invention, the narrow sides of the limiting plate 701 on both sides facing each other are fixedly provided with U-shaped seats 702, and rollers 703 are rotatably installed between the facing surfaces of the U-shaped seats 702. The facing surfaces of the outer shell 501 are fixedly provided with guide rails 503 that fit with the rollers 703 on both sides, and the sliding groove surfaces of the guide rails 503 are smooth surfaces coated with lubricating oil. Through the cooperation, the magnetic suction block 7 can be limited to maintain the verticality of the up and down displacement. At the same time, such structural cooperation can also reduce the displacement friction and improve the smoothness of automatic falling and resetting.

[0038] In the embodiment of the present invention, the protective plate 3 includes a hollow tube 301, and two parallel baffles 302 are integrally formed on the outer side of the hollow tube 301, and the sides of the two baffles 302 are provided with positioning grooves 303 that are connected to the inner cavity of the hollow tube 301; the protective plate 3 adopts a structure in which the hollow tube 301 and the two parallel baffles 302 are integrally formed, and the sides of the baffles 302 are provided with positioning grooves 303, which are combined with the positioning plate 203 outside the driving rod 202. This structural design not only enhances the strength and stability of the protective plate 3, so that it can withstand a certain impact force and effectively block the high temperature, flames and shock waves generated by fire and explosion, but also facilitates the installation and connection of the protective plate 3 and the driving rod 202, ensuring the synchronization and accuracy of the protective plate 3 during the rotation process, and the part of the baffle 302 that fits the limit plate 701 is also rotatably installed with a ball 304, which can reduce the displacement resistance of the limit plate 701 and accelerate the reset speed of the baffle 302.

[0039] In an embodiment of the present invention, two positioning plates 203 combined with the positioning grooves 303 on both sides are fixedly provided on the outer side of the driving rod 202, and the internal structure of the driving rod 202 is provided with a cavity 205; the combination of the positioning plate 203 and the positioning groove 303 is easy to assemble and simple to manufacture. The design of the cavity 205 can reduce the weight and reduce the resistance to the restoration of the protective plate 3.

[0040] In an embodiment of the present invention, the opposite sides of the outer shell 501 are fixedly provided with limit strips 504 with arc-shaped side ends, and the opposite sides of the shell cover 502 are fixedly provided with elastic limit fasteners 505, and the limit fasteners 505 are snap-connected with the limit strips 504; the combination of the limit fasteners 505 and the limit strips 504 makes it easy to open the shell cover 502, which is convenient for the assembly of the internal structure and also convenient for subsequent maintenance work.

[0041] In an embodiment of the present invention, the facing surfaces of the fixed frame 1 are fixed with shifting bars 102 that are in contact with the two sides of the protective plate 3, and the surfaces of the shifting bars 102 that are in contact with the protective plate 3 are both inclined surfaces; the shifting bars 102 on both sides are in contact with the opposite surfaces on both sides of the protective plate 3, thereby strengthening the tightness of the connection and improving the protective effect.

[0042] Working principle: This embodiment provides an intelligent fire and explosion prevention device for an air conditioning and ventilation system. First, the intelligent control structure connected to the device is installed on the inner wall of the air conditioning and ventilation system, such as the temperature detection module, the gas concentration sensor and the smoke module in the detection module, and connected to the control module on the outside, so that the air circulation in the air conditioning and ventilation system can be monitored at all times. In the event of an accident, the device can be controlled to work in time through the control module to achieve the effect of fire and explosion prevention. When the air conditioning and ventilation system is operating normally, the drive motor 201 is started, and the output end of the drive motor 201 drives the drive rod 202 to rotate. Since the positioning plate 203 on the outside of the drive rod 202 is combined with the positioning groove 303 on the protective plate 3, the rotation of the drive rod 202 will drive the protective plate 3 to rotate around the drive rod 202, so as to realize the opening of the protective plate 3, so that the ventilation system can be ventilated normally. When the ventilation system needs to be closed, the drive motor 201 rotates in the opposite direction, drives the protective plate 3 to rotate back to its original position, and closes the ventilation channel. During the normal opening and closing process of the protective plate 3, the torsion spring 403 is in a certain compression or tension state and stores elastic potential energy. When an unexpected situation such as fire or explosion causes the drive motor 201 to lose power or the system control command requires the protective plate 3 to close quickly, the elastic potential energy stored in the torsion spring 403 is released, and the drive rod 202 is driven to rotate through the plug-in block 404 and the positioning plate 203, so that the protective plate 3 is quickly reversed to close the ventilation channel, which plays a role in fire prevention and explosion prevention. When the protective plate 3 is opened, the lower side of the resistance member 5 is in contact with the side of the protective plate 3. Among them, the electromagnetic block 6 at the bottom of the shell cover 502 cooperates with the magnetic block 7. When the electromagnetic block 6 loses power, it will not generate magnetic attraction with the magnetic block 7, so that a certain resistance is generated between the resistance member 5 and the protective plate 3, preventing the protective plate 3 from accidentally rotating due to airflow impact and other reasons during the operation of the ventilation system. The rollers 703 on both sides of the limit plate 701 cooperate with the guide rails 503 of the shell 501, so that the limit plate 701 moves up and down more smoothly, while reducing friction. The arc-shaped guide surfaces 704 of the two limit plates 701 facing away from the side of the protective plate 3 facilitate the protective plate 3 to squeeze the resistance member 5 to move when it is opened, thereby improving the flexibility of the overall structural coordination, allowing the device to work normally even in a power-off situation, thereby enhancing the safety of protection.

[0043] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An intelligent fire and explosion prevention device for an air conditioning and ventilation system, characterized in that: It comprises a U-shaped fixing frame (1), a cover plate (101) is fixedly mounted on the top of the fixing frame (1), a rotatably adjustable protection component (2) is mounted between the fixing frame (1) and the cover plate (101), and a reversing member (4) connected to the protection component (2) is fixedly mounted on the top of the fixing frame (1); The protection component (2) comprises a driving motor (201), the output end of the driving motor (201) is connected to a driving rod (202), a protection plate (3) is sleeved on the outer side of the driving rod (202), a positioning plate (203) is fixedly provided at the bottom of the driving rod (202), and a latch (204) is fixedly provided at the bottom of the driving rod (202); The reversing member (4) comprises a limiting sleeve (401) and a fixing rod (402) fixed on the top of the fixing frame (1); a torsion spring (403) is sleeved on the outer side of the fixing rod (402); a plug-in block (404) with a plug hole is integrally formed at the top extruded end of the torsion spring (403); the plug pin (204) and the plug-in block (404) are plug-connected; and two clamping strips (405) for clamping the bottom protruding end of the torsion spring (403) are fixedly provided on the bottom inner wall of the limiting sleeve (401).

2. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 1, characterized in that: Two resistance members (5) penetrating the side walls of the cover plate (101) are also fixedly mounted on the top side of the cover plate (101), and the lower end side surfaces of the resistance members (5) can fit with the side surfaces of the protective plate (3) in the open state.

3. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 2, characterized in that: The resistance member (5) comprises a shell (501) and a shell cover (502); an electromagnetic block (6) is fixedly provided at the bottom of the shell cover (502); a magnetic block (7) cooperating with the electromagnetic block (6) is fitted and mounted on the top side of the cover plate (101) located in the inner cavity of the shell (501); a limit plate (701) is fixedly provided at the bottom of the magnetic block (7).

4. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 3, characterized in that: The narrow sides of the limiting plate (701) on both sides facing away from each other are fixedly provided with U-shaped seats (702), and rollers (703) are rotatably installed between the facing surfaces of the U-shaped seats (702).

5. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 4, characterized in that: The facing surfaces of the housing (501) are fixedly provided with guide rails (503) that fit the rollers (703) on both sides, and the guide rail groove surfaces of the guide rails (503) are smooth surfaces coated with lubricating oil.

6. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 4, characterized in that: The sides of the two limiting plates (701) facing away from the protective plate (3) are configured with arc-shaped guide surfaces (704), and the guide surfaces (704) are smooth surfaces.

7. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 1, characterized in that: The protective plate (3) comprises a hollow tube (301), the outer side surface of the hollow tube (301) is integrally formed with two parallel baffles (302), and the sides of the two baffles (302) are both provided with positioning grooves (303) that are in communication with the inner cavity of the hollow tube (301).

8. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 7, characterized in that: Two positioning plates (203) combined with the positioning grooves (303) on both sides are fixedly provided on the outer side of the driving rod (202), and a cavity (205) is formed inside the driving rod (202).

9. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 3, characterized in that: The opposite sides of the shell (501) are fixedly provided with limiting strips (504) with arc-shaped side ends, and the opposite sides of the shell cover (502) are fixedly provided with elastic limiting fasteners (505), and the limiting fasteners (505) are connected to the limiting strips (504) by snapping.

10. The intelligent fire and explosion prevention device for air conditioning and ventilation system according to claim 1, characterized in that: The facing surfaces of the fixed frame (1) are fixedly provided with shift bars (102) that are in contact with both sides of the protective plate (3), and the surfaces where the shift bars (102) are in contact with the protective plate (3) are both inclined surfaces.

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