Underground fire-fighting noise control ventilation device

Abstract

An underground fire-fighting sound noise control ventilation device relates to the field of ventilation equipment and comprises a ventilation shaft, a rain shelter is arranged at the top of the ventilation shaft, a plurality of ventilation ports are formed in the upper side of the ventilation shaft, steel wire meshes are arranged on the ventilation ports, an upper noise elimination mechanism and a lower noise elimination mechanism are arranged in the ventilation shaft, a ventilation pipe is arranged on one side of the ventilation shaft, and the ventilation shaft is provided with a ventilation hole. A filtering mechanism is inserted in the ventilation pipe, the upper noise elimination mechanism and the lower noise elimination mechanism are arranged in a staggered mode, the rain shelter effectively prevents rainwater and sundries from invading, and normal operation of equipment is guaranteed; the ventilation port is combined with the steel wire mesh, ventilation is guaranteed, and foreign matter is prevented from entering; the double-silencing mechanism remarkably reduces operation noise, and the use experience is improved; the fan and the exhaust fan enhance the active ventilation capability and improve the ventilation efficiency; and the filtering mechanism further ensures the air quality.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation, in particular to an underground fire-fighting noise control ventilation device. Background Art

[0002] Underground fire protection engineering is an important part of the fire protection field, mainly involving various fire protection equipment equipped and installed in underground buildings. Due to the characteristics of underground space, such as being closed on all sides and poor air circulation, existing technologies usually use specific fire protection engineering ventilation devices to speed up the air flow rate in the underground space, so as to achieve the effect of ventilation and smoke exhaust. However, although this method meets the basic needs of ventilation and smoke exhaust, it also brings new problems. In particular, in the process of speeding up the air flow rate, a lot of noise is often generated, which seriously affects the environmental quality of the underground space and the comfort of users.

[0003] In order to deal with this problem, Chinese patent CN219700862U discloses a ventilation noise reduction device for underground fire protection engineering. This device uses built-in buffer plates to reduce the resonance generated during air circulation, thereby achieving the effect of noise reduction. However, the design of this device has certain defects, especially the relatively wide plate surface of its plate group, which hinders the flow of air to a certain extent, thereby affecting the efficiency of air exchange. How to ensure the noise reduction effect without reducing the air exchange efficiency has become a problem that needs to be further studied and solved in the current field of underground fire protection engineering. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose an underground fire noise control ventilation device.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A ventilation device for controlling noise of underground fire fighting, comprising a ventilation shaft, a rain shelter is provided on the top of the ventilation shaft, a plurality of ventilation ports are provided on the upper side of the ventilation shaft, a wire mesh is provided on the ventilation port, an upper silencer mechanism and a lower silencer mechanism are provided inside the ventilation shaft, a ventilation pipe is provided on one side of the ventilation shaft, a filtering mechanism is inserted in the ventilation pipe, the upper silencer mechanism and the lower silencer mechanism are alternately arranged, the upper silencer mechanism comprises a mounting frame, a plurality of linear array vibration rods are provided in the middle of the mounting frame, a plurality of guide holes are provided on the mounting frame, an upper fixed block and a lower fixed block are provided on the inner wall of the ventilation shaft, a guide rod is installed between the upper fixed block and the lower fixed block, a mounting frame is slidably fitted in the guide rod, an upper telescopic spring is provided between the mounting frame and the upper fixed block, and a lower telescopic spring is provided between the mounting frame and the lower fixed block.

[0007] Furthermore, the filtering mechanism includes an upper mounting plate, a filter frame is provided at the bottom of the upper mounting plate, an upper plug hole is provided at the top of the ventilation pipe to accommodate the insertion of the filter frame, a lower slot is provided at the bottom of the inner wall of the ventilation pipe to accommodate the insertion of the filter frame, and a fixing bolt is provided on the upper mounting plate, and the fixing bolt passes through the upper mounting plate and is threadedly connected to the first threaded hole of the ventilation pipe.

[0008] Furthermore, the wire mesh is fixedly connected to the ventilation port through a connecting member, and the connecting member includes a connecting plate, a fixing plate is provided on the connecting plate, and connecting bolts are provided on the connecting plate. The connecting bolts pass through the fixing plate and are threadedly connected to the second threaded hole of the ventilation shaft.

[0009] Furthermore, positioning slots for accommodating the insertion of the connecting plate and the fixing plate are provided around the ventilation port.

[0010] Furthermore, a fan is provided in the ventilation shaft.

[0011] Furthermore, an exhaust fan is provided in the ventilation duct.

[0012] Furthermore, the rain shelter includes a top plate, and inclined plates are arranged around the top plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the rain shelter of the utility model effectively prevents the intrusion of rain and debris, ensuring the normal operation of the equipment; the air exchange port is combined with the wire mesh to ensure ventilation and prevent foreign matter from entering; the double silencer mechanism significantly reduces operating noise and improves the user experience; the fan and exhaust fan enhance the active ventilation capacity and improve ventilation efficiency; and the filtering mechanism further ensures the air quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 Schematic diagram of the structure of the upper muffler mechanism;

[0016] Figure 3 It is a structural schematic diagram of the lower muffler mechanism;

[0017] Figure 4 is a structural schematic diagram of a connecting member;

[0018] Figure 5 It is a structural schematic diagram of the filtering mechanism;

[0019] Wherein: 1 ventilation shaft, 11 ventilation port, 111 positioning slot, 112 second threaded hole, 12 wire mesh, 121 connecting plate, 122 fixing plate, 123 connecting bolt, 2 ventilation pipe, 3 awning, 31 top plate, 32 oblique plate, 4 fan, 5 upper silencer mechanism, 51 mounting frame, 52 vibration rod, 53 guide hole, 54 upper fixing block, 55 lower fixing block, 56 guide rod, 57 upper telescopic spring, 58 lower telescopic spring, 6 lower silencer mechanism, 7 filtering mechanism, 71 upper mounting plate, 72 fixing bolt, 73 filtering frame, 74 upper jack, 75 first threaded hole, 76 lower slot, 8 exhaust fan. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0021] like Figure 1-Figure 5 As shown, an underground fire noise control ventilation device includes a ventilation shaft 1, which is an existing mature technology and will not be elaborated in detail. The ventilation shaft is firmly placed on the ground, which effectively promotes the ventilation and air exchange process of the underground fire protection system. A rain shelter 3 is provided on the top of the ventilation shaft, which can effectively prevent rainwater from entering the ventilation shaft and ensure the normal operation of its internal equipment. A plurality of ventilation ports 11 are provided on the upper side of the ventilation shaft to facilitate air circulation; the ventilation ports are provided with a wire mesh 12 to prevent foreign objects from entering the ventilation shaft and ensure the cleanliness and safety of ventilation. The rain shelter can effectively prevent the influence of natural factors on the ventilation device, while the design of the ventilation port and the wire mesh provides necessary ventilation while preventing the invasion of external impurities, ensuring the quality of ventilation and the safe operation of the device. An upper muffler mechanism 5 and a lower muffler mechanism 6 are provided inside the ventilation shaft, which can effectively reduce the noise generated during the ventilation process and improve the comfort of the use environment; a ventilation pipe 2 is provided on one side of the ventilation shaft, and a filter mechanism 7 is inserted in the ventilation pipe, which can further filter and clean the air in the ventilation shaft to provide fresher air. The silencer mechanism significantly reduces operating noise and improves user experience, while the addition of the filter mechanism further ensures air quality, making the ventilation device more humane and environmentally friendly.

[0022] Furthermore, the wire mesh is fixedly connected to the ventilation port through a connecting member, and the connection is stable and easy to disassemble, so that the wire mesh can be cleaned and replaced. The connecting member includes a connecting plate 121, a fixing plate 122 is provided on the connecting plate, and a connecting bolt 123 is provided on the connecting plate. The connecting bolt passes through the fixing plate and is threadedly connected to the second threaded hole 112 of the ventilation shaft. It is fixed to the ventilation shaft by threaded connection, and the connection is firm and not easy to loosen. This connection method not only ensures the stability of the wire mesh, but also simplifies the maintenance and replacement process, and improves the overall practicality and durability of the device.

[0023] The solution is refined. The ventilation port is provided with positioning slots 111 around it to accommodate the insertion of the connecting plate and the fixing plate.

[0024] Furthermore, the upper muffler mechanism 5 and the lower muffler mechanism 6 have the same structure, and the upper muffler mechanism 5 and the lower muffler mechanism 6 are staggered, which can reduce noise to the greatest extent; Figure 2 and Figure 3 Taking the above muffler mechanism as an example, the upper muffler mechanism includes a mounting frame 51, a plurality of linear array vibration rods 52 are arranged in the middle of the mounting frame, a plurality of guide holes 53 are arranged on the mounting frame, and in coordination therewith, an upper fixed block 54 and a lower fixed block 55 are arranged on the inner wall of the ventilation shaft, a guide rod 56 is installed between the upper fixed block and the lower fixed block, a mounting frame is slidably matched in the guide rod, an upper telescopic spring 57 is arranged between the mounting frame and the upper fixed block, and a lower telescopic spring 58 is arranged between the mounting frame and the lower fixed block. The effect of noise reduction is achieved through the vibration of the vibration rod and the buffering effect of the spring. This double muffler mechanism design significantly improves the noise reduction performance, making the ventilation device quieter during operation and meeting the user's demand for a low-noise environment.

[0025] Furthermore, the ventilation shaft is provided with a fan 4, which is a prior art product. The ventilation duct is provided with an exhaust fan 8, which is a prior art product. The addition of the fan and the exhaust fan strengthens the active ventilation capacity of the ventilation device and ensures the smoothness and efficiency of air circulation.

[0026] In at least one embodiment, the rain shelter includes a top plate 31, and the top plate is surrounded by diagonal plates 32. This structure can more effectively block rain and debris and protect the normal operation of the ventilation shaft. The special design of the rain shelter enhances the protection ability of the device, so that it can maintain a stable working state in various natural environments.

[0027] In at least one embodiment, the filter mechanism includes an upper mounting plate 71, a filter frame 73 is provided at the bottom of the upper mounting plate, an upper plug hole 74 is provided at the top of the ventilation pipe to accommodate the insertion of the filter frame, a lower slot 76 is provided at the bottom of the inner wall of the ventilation pipe to accommodate the insertion of the filter frame, and a fixing bolt 72 is provided on the upper mounting plate, and the fixing bolt passes through the upper mounting plate and is threadedly connected to the first threaded hole 75 of the ventilation pipe. This design can be easily installed in the ventilation pipe to efficiently filter the circulating air. This filter mechanism is not only easy to install, but also can effectively remove impurities in the air, providing users with a purer ventilation environment.

[0028] Working mode, the ventilation shaft 1 is firmly placed on the ground to ensure that it is vertical and stable. A rain shelter 3 is installed on the top of the ventilation shaft to prevent rainwater from entering the ventilation shaft. Ensure that the fan 4 and the exhaust fan 8 work normally to provide the necessary ventilation power. Turn on the fan 4 and realize the ventilation of the underground fire protection system through the ventilation shaft 1. The wind enters the ventilation shaft from the air exchange port 11, and is discharged through the ventilation pipe 2 after being silenced by the upper silencer mechanism 5 and the lower silencer mechanism 6. The upper silencer mechanism 5 and the lower silencer mechanism 6 in the device can effectively reduce the noise generated during the ventilation process. When the fan is working, the vibration rod 52 will vibrate in the installation frame 51, and the continuous reciprocating motion of the upper telescopic spring 57 and the lower telescopic spring 58 will reduce the generation and propagation of noise. Insert the filter mechanism 7 in the ventilation pipe 2 to ensure that the dust and impurities in the air are effectively filtered during the ventilation process. Clean or replace the filter frame 73 regularly to ensure the filtering effect and ventilation efficiency. Regularly check the connecting components, including the connecting plate 121, the fixing plate 122 and the connecting bolts 123, to ensure that they are tight and free of rust. Regularly maintain and service the fan 4 and the exhaust fan 8 to extend their service life and ensure their performance.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An underground fire noise control ventilation device, characterized in that: It includes a ventilation shaft, a rain shelter is provided on the top of the ventilation shaft, a plurality of ventilation ports are provided on the upper side of the ventilation shaft, a wire mesh is provided on the ventilation port, an upper silencer mechanism and a lower silencer mechanism are provided inside the ventilation shaft, a ventilation pipe is provided on one side of the ventilation shaft, a filtering mechanism is inserted in the ventilation pipe, the upper silencer mechanism and the lower silencer mechanism are staggered, the upper silencer mechanism includes a mounting frame, a plurality of linear array vibration rods are provided in the middle of the mounting frame, a plurality of guide holes are provided on the mounting frame, an upper fixed block and a lower fixed block are provided on the inner wall of the ventilation shaft, a guide rod is installed between the upper fixed block and the lower fixed block, a mounting frame is slidably fitted in the guide rod, an upper telescopic spring is provided between the mounting frame and the upper fixed block, and a lower telescopic spring is provided between the mounting frame and the lower fixed block.

2. The underground fire noise control ventilation device according to claim 1, characterized in that: The filter mechanism includes an upper mounting plate, a filter frame is provided at the bottom of the upper mounting plate, an upper insertion hole is provided at the top of the ventilation pipe to accommodate the insertion of the filter frame, a lower slot is provided at the bottom of the inner wall of the ventilation pipe to accommodate the insertion of the filter frame, and a fixing bolt is provided on the upper mounting plate, and the fixing bolt passes through the upper mounting plate and is threadedly connected to the first threaded hole of the ventilation pipe.

3. The underground fire noise control ventilation device according to claim 2, characterized in that: The wire mesh is fixedly connected to the ventilation port through a connecting member, and the connecting member includes a connecting plate, a fixing plate is provided on the connecting plate, and connecting bolts are provided on the connecting plate. The connecting bolts pass through the fixing plate and are threadedly connected to the second threaded hole of the ventilation shaft.

4. The underground fire noise control ventilation device according to claim 3 is characterized in that: Positioning slots for accommodating the insertion of the connecting plate and the fixing plate are arranged around the ventilation port.

5. The underground fire noise control ventilation device according to claim 1, characterized in that: A fan is arranged in the ventilation shaft.

6. The underground fire noise control ventilation device according to claim 1, characterized in that: An exhaust fan is arranged in the ventilation duct.

7. The underground fire noise control ventilation device according to claim 1, characterized in that: The rain shelter comprises a top plate, and inclined plates are arranged around the top plate.

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