Fireproof return air silencing equipment for ship cabin

Abstract

The utility model discloses fireproof return air silencing equipment for a ship cabin, and belongs to the technical field of ship cabins, the fireproof return air silencing equipment comprises a silencing cylinder with openings on the left and right sides, U-shaped sliding rods are arranged on the upper and lower side surfaces of the inner wall of the silencing cylinder, a fixing plate is arranged on the sliding rods, the same buffer plate I is arranged on the two sliding rods in a sliding manner, and the buffer plate I is arranged on the left and right sides of the silencing cylinder. A plurality of ventilation holes are formed in the buffer plate I; according to the fireproof air return silencing equipment for the ship cabin, a first buffer plate, a first spring, a second buffer plate, a second spring and a movable plug are arranged, the first buffer plate is pushed when gas enters a silencing barrel, the first buffer plate slides on a sliding rod to extrude the first spring, an extension rod pushes the movable plug to be away from a circular hole, and the silencing effect is improved. According to the noise reduction device, the speed is limited through the circular holes in the second buffer plate, meanwhile, a buffer force is provided for the limited-speed gas through the action of the circular plate and the buffer pipe, and the noise reduction effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship cabins, and in particular relates to a fireproof return air silencing device for ship cabins. Background Art

[0002] Ship cabins should adopt certain sound insulation and noise reduction measures to protect shipboard personnel from harmful noise. In ship cabins, the return air system generates secondary noise due to the ship's vibration during navigation. This is the main noise source in the cabin, so it is necessary to perform certain noise reduction treatment on the return air system at the fire damper to reduce the impact of noise.

[0003] The existing return air duct silencer is not very effective. It simply increases the silencer cotton to silence the sound of the return air flow, but cannot reduce the flow rate of the return air flow by dispersing the return air flow, thereby reducing the sound of the return air flow. As a result, the silencer effect is poor, affecting the use effect. Utility Model Content

[0004] The purpose of the present utility model is to provide a fireproof return air silencer for a ship cabin, so as to solve the problem that the existing return air duct silencer proposed in the above background technology is not very effective, and simply increases the silencer cotton to silence the sound of the return air flow, but cannot reduce the flow rate of the return air flow by dispersing the return air flow, thereby reducing the sound of the return air flow, and thus the silencer effect is poor, affecting the use effect.

[0005] The cam is secured to the upper and lower sides of the cam, and the cam has a U-shaped sliding rod installed on the upper and lower sides of the inner wall of the cam, and a fixing plate is installed on the sliding rod, and the same buffer plate 1 is slidably installed on the two sliding rods, and a spring 1 is sleeved on the sliding rod at both ends and fixedly connected to the fixing plate and the buffer plate 1 respectively, and a plurality of ventilation holes are provided on the buffer plate 1. The buffer plate 2 and a circular plate are installed in the silencer, and the buffer plate 2 is located between the circular plate and the buffer plate 1. A circular hole is provided on the buffer plate 2, and a plurality of springs 2 are installed on the left side of the buffer plate 2, and a movable plate is installed at one end of the spring 2, and a movable plug is installed on the right side of the movable plate, and one end of the movable plug is located in the circular hole. An extension rod is installed on the left side of the buffer plate 2, and a plurality of L-shaped buffer pipes are connected and installed on the circular plate, and a mounting assembly is provided on the silencer.

[0006] The above scheme is adopted, by setting buffer plate one, spring one, buffer plate two, spring two and a movable plug, when the gas enters the silencer, the buffer plate one is pushed, and the buffer plate one slides on the sliding rod to squeeze the spring one, so that the extension rod pushes the movable plug away from the circular hole, and then the incoming gas is diverted through the ventilation hole, thereby achieving speed limiting through the circular hole on the buffer plate two, and at the same time, a buffering force is given to the speed-limited gas through the action of the circular plate and the buffer tube, thereby achieving the effect of silencing.

[0007] As a preferred embodiment, the mounting assembly includes an annular mounting plate, which is mounted on the outer surface of the left end of the silencer, and a plurality of bolts are threadedly mounted on the mounting plate.

[0008] By adopting the above solution, a mounting plate and bolt 2 are set up, the bolt 2 is fixed by utilizing the function of the mounting plate, and the silencer is fixed by utilizing the function of the thread of bolt 2, which also facilitates the disassembly of the silencer by loosening bolt 2 later.

[0009] As a preferred embodiment, a telescopic rod is provided in the spring 2, and the telescopic rod is installed on the left side of the buffer plate 2. The telescopic axis of the telescopic rod is fixedly connected to the movable plate. A sliding groove is provided on the front and rear sides of the inner wall of the silencer, and a slider is slidably installed in the sliding groove, and one end of the slider is fixedly connected to the buffer plate 1.

[0010] By adopting the above scheme, by setting a telescopic rod and a slider, the action of the telescopic rod position inside the spring 2 is utilized to fill the interior of the spring 2, so that the interior of the spring 2 is full, which improves the stability of the spring 2 when it is stretched. Combined with the action of one end of the slider sliding in the slide groove, the buffer plate 1 is limited and supported, thereby improving the stability of the buffer plate 1 when it moves.

[0011] As a preferred embodiment, four arc-shaped baffles are installed on the right side of the silencer, a filter screen is provided on the right side of the silencer, the outer side of the filter screen is fitted with the inner side of the baffle, and a positioning assembly is provided on the baffle.

[0012] By adopting the above scheme, by setting up baffles and filter plates, the filter plates are used to filter the backflow gas, thereby filtering out impurities in the gas, preventing impurities from passing through the silencer and entering the cabin. The position of the filter plates is intercepted and determined in combination with the function of the baffles, and the position of the filter plates is standardized.

[0013] As a preferred embodiment, the positioning assembly includes two pins, and slots are provided at the front and rear ends of the right side of the silencer. Pins are provided in the slots, one end of the pins is fixedly connected to the filter plate, and a fixing assembly is provided on the pins.

[0014] With the above solution, by setting a latch and utilizing the cooperation between the latch and the slot, the position of the filter screen plate during installation is determined, thereby facilitating the accurate and rapid installation position of the filter screen plate, and the structure is simple.

[0015] As a preferred embodiment, the fixing assembly includes two U-shaped fixing frames, which are respectively installed on the front and rear sides of the silencer, and a bolt 1 is threadedly installed on the fixing frame. A through groove is provided on the front and rear sides of the silencer, and the through groove is connected to the slot. One end of the bolt 1 extends into the through groove and is threadedly connected to the pin.

[0016] By adopting the above scheme, a fixing frame and bolt 1 are set up, and the function of the fixing frame is used to fix bolt 1 on the front and rear sides of the silencer respectively. Combined with the function of the through slot, it is convenient for bolt 1 to pass through the through slot and connect with the pin, and then fix one end of the pin to achieve the purpose of fixing the filter plate, and the operation is convenient.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The ship cabin fireproof return air silencer is provided with a buffer plate 1, a spring 1, a buffer plate 2, a spring 2 and a movable plug. When gas enters the silencer, the buffer plate 1 is pushed. The buffer plate 1 slides on the slide rod to squeeze the spring 1, so that the extension rod pushes the movable plug away from the circular hole, and then the incoming gas is diverted through the ventilation hole, thereby achieving speed limiting through the circular hole on the buffer plate 2. At the same time, the circular plate and the buffer tube provide a buffering force to the speed-limited gas, thereby achieving a silencer effect.

[0019] The ship cabin fireproof return air silencer equipment is equipped with baffles and filter screens, and uses the filter screens to filter the return gas, thereby filtering out impurities in the gas, preventing impurities from passing through the silencer and entering the cabin. The position of the filter screen is intercepted and determined by combining the baffles to standardize the position of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0022] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0023] Figure 4 This is a schematic diagram of the top view of the latch structure of the present invention.

[0024] In the figure: 1. Silencer; 2. Buffer plate 1; 3. Slide rod; 4. Fixed plate; 5. Spring 1; 6. Buffer plate 2; 7. Movable plate; 8. Spring 2; 9. Movable plug; 10. Round plate; 11. Buffer tube; 12. Telescopic rod; 13. Slider; 14. Baffle; 15. Filter plate; 16. Latch; 17. Bolt 1; 18. Fixing bracket; 19. Mounting plate; 20. Bolt 2; 21. Extension rod. DETAILED DESCRIPTION

[0025] See also Figure 1-4 The utility model provides a fireproof return air silencer for a ship cabin, including a silencer 1 with openings on both sides, a U-shaped sliding rod 3 is installed on the upper and lower sides of the inner wall of the silencer 1, the sliding rod 3 is used to support the buffer plate 2, a fixed plate 4 is installed on the sliding rod 3, and one end of the spring 5 is fixed by the fixed plate 4, and the same buffer plate 2 is slidably installed on the two sliding rods 3, and the buffer plate 2 is used to initially limit the speed of the gas, and a spring 5 is sleeved on the sliding rod 3 with two ends fixedly connected to the fixed plate 4 and the buffer plate 2 respectively, and a plurality of ventilation holes are opened on the buffer plate 2, a buffer plate 2 6 and a circular plate 10 are installed in the silencer 1, the buffer plate 2 6 is located between the circular plate 10 and the buffer plate 2, and a circular hole is opened on the buffer plate 2 6, and a plurality of springs 2 8 are installed on the left side of the buffer plate 2 6, and the spring 2 8 is used to support the movable plate 7, and one end of the spring 2 8 A movable plate 7 is installed at the end, and the movable plate 7 is used to support the movable plug 9. A movable plug 9 is installed on the right side of the movable plate 7, and one end of the movable plug 9 is located in the circular hole. An extension rod 21 is installed on the left side of the buffer plate 2 6. Several L-shaped buffer tubes 11 are connected and installed on the circular plate 10. A mounting assembly is provided on the silencer 1. By setting a buffer plate 1 2, a spring 1 5, a buffer plate 2 6, a spring 2 8 and a movable plug 9, when the gas enters the silencer 1, the buffer plate 1 2 is pushed, and the buffer plate 1 2 slides on the slide rod 3 to squeeze the spring 1 5, so that the extension rod 21 pushes the movable plug 9 away from the circular hole, and then the incoming gas is diverted through the ventilation hole, thereby achieving speed limiting through the circular hole on the buffer plate 2 6. At the same time, the speed-limited gas is given a buffering force through the action of the circular plate 10 and the buffer tube 11, thereby achieving the effect of silencing.

[0026] The mounting assembly includes an annular mounting plate 19, which supports and fixes the bolts 20. The mounting plate 19 is installed on the outer surface of the left end of the silencer 1. Several bolts 20 are threadedly installed on the mounting plate 19. By setting the mounting plate 19 and the bolts 20, the bolts 20 are fixed by utilizing the function of the mounting plate 19, and the silencer 1 is fixed by utilizing the function of the thread of the bolts 20. It is also convenient to loosen the bolts 20 later to disassemble the silencer 1.

[0027] A telescopic rod 12 is provided in the spring 2 8, and the telescopic rod 12 fills the inside of the spring 2 8. The telescopic rod 12 is installed on the left side of the buffer plate 2 6. The telescopic axis of the telescopic rod 12 is fixedly connected to the movable plate 7. Slide grooves are provided on the front and back sides of the inner wall of the silencer 1. A slider 13 is slidably installed in the slide groove. One end of the slider 13 is fixedly connected to the buffer plate 1 2. By setting the telescopic rod 12 and the slider 13, the action of the telescopic rod 12 in the spring 2 8 is utilized to fill the inside of the spring 2 8, so that the inside of the spring 2 8 is full and the stability of the spring 2 8 when it is stretched is improved. Combined with the action of one end of the slider 13 sliding in the slide groove, the buffer plate 2 is limited and supported, thereby improving the stability of the buffer plate 2 when it moves.

[0028] Four arc-shaped baffles 14 are installed on the right side of the silencer 1, and a filter screen 15 is provided on the right side of the silencer 1. The outer side of the filter screen 15 fits with the inner side of the baffle 14. A positioning component is provided on the baffle 14. By setting the baffle 14 and the filter screen 15, the filter screen 15 filters the gas, and the function of the filter screen 15 is used to filter the reflux gas, thereby filtering out impurities in the gas, and preventing impurities from passing through the silencer 1 into the cabin. Combined with the function of the baffle 14, the position of the filter screen 15 is intercepted and determined, and the position of the filter screen 15 is standardized.

[0029] The positioning component includes two latches 16. Slots are provided at the front and rear ends of the right side of the silencer 1. A latch 16 is provided in the slot. One end of the latch 16 is fixedly connected to the filter screen plate 15. A fixing component is provided on the latch 16. By setting the latch 16 and utilizing the function of the latch 16 cooperating with the slot, the position of the filter screen plate 15 during installation is determined, thereby facilitating the filter screen plate 15 to accurately and quickly determine the installation position, and the structure is simple.

[0030] The fixing assembly includes two U-shaped fixing frames 18, which are respectively installed on the front and rear sides of the silencer 1. A bolt 17 is threadedly installed on the fixing frame 18. A through slot is provided on the front and rear sides of the silencer 1. The through slot is connected to the slot. One end of the bolt 17 extends into the through slot and is threadedly connected to the pin 16. By setting the fixing frame 18 and the bolt 17, the bolt 17 is fixed to the front and rear sides of the silencer 1 by utilizing the function of the fixing frame 18. Combined with the function of the through slot, it is convenient for the bolt 17 to pass through the through slot and connect with the pin 16, thereby fixing one end of the pin 16, thereby achieving the purpose of fixing the filter plate 15, and convenient operation.

[0031] When in use, the silencer 1 is fixed by rotating the bolt 20. When there is gas backflow, the gas enters the silencer 1 to push the buffer plate 2, and the buffer plate 2 slides on the slide rod 3. When the buffer plate 2 slides, it squeezes the spring 5, driving the slider 13 to slide in the slide groove. At this time, the buffer plate 2 drives the extension rod 21 to extend into the circular hole, moving the movable plug 9. At this time, the movable plug 9 is pushed out of the circular hole by the extension rod 21. When the movable plug 9 moves, it stretches the spring 2 8 and the telescopic rod 12. At this time, the gas passes through The air enters between the buffer plate 1 2 and the buffer plate 2 6 through the ventilation hole, then enters between the circular plate 10 and the buffer plate 2 6 through the circular hole, and is finally diverted and discharged through the action of the buffer tube 11, thereby reducing the flow rate and achieving the effect of silencing. The impurities in the gas are filtered through the action of the filter plate 15. When the filter plate 15 needs to be disassembled, the bolt 17 is turned, and one end of the bolt 17 is moved out of the slot and then the filter plate 15 is moved to the right. At this time, one end of the pin 16 is moved out of the slot, and then the filter plate 15 can be removed for cleaning.

Claims

1. A fireproof return air silencing device for a ship cabin, characterized by: The utility model comprises a silencer (1) with openings on both the left and right sides, a U-shaped sliding rod (3) is installed on the upper and lower side surfaces of the inner wall of the silencer (1), a fixing plate (4) is installed on the sliding rod (3), and a same buffer plate (2) is slidably installed on the two sliding rods (3), a spring (5) is sleeved on the sliding rod (3), and the two ends of the spring (5) are respectively fixedly connected to the fixing plate (4) and the buffer plate (2), and a plurality of ventilation holes are opened on the buffer plate (2), and a buffer plate (6) and a circular plate (10) are installed in the silencer (1), and the buffer plate (6) is located at A circular hole is provided on the buffer plate 2 (6) between the circular plate (10) and the buffer plate 1 (2). A plurality of springs 2 (8) are installed on the left side of the buffer plate 2 (6). A movable plate (7) is installed at one end of the spring 2 (8). A movable plug (9) is installed on the right side of the movable plate (7). One end of the movable plug (9) is located in the circular hole. An extension rod (21) is installed on the left side of the buffer plate 2 (6). A plurality of L-shaped buffer tubes (11) are connected and installed on the circular plate (10). A mounting assembly is provided on the silencer (1).

2. The ship cabin fireproof return air silencing equipment according to claim 1 is characterized by: The mounting assembly comprises an annular mounting plate (19), the mounting plate (19) being mounted on the outer surface of the left end of the silencer (1), and a plurality of bolts (20) being threadedly mounted on the mounting plate (19).

3. The ship cabin fireproof return air silencing equipment according to claim 1 is characterized by: A telescopic rod (12) is provided in the spring 2 (8), and the telescopic rod (12) is installed on the left side of the buffer plate 2 (6). The telescopic axis of the telescopic rod (12) is fixedly connected to the movable plate (7). Slide grooves are provided on the front and rear sides of the inner wall of the silencer (1), and a slider (13) is slidably installed in the slide groove. One end of the slider (13) is fixedly connected to the buffer plate 1 (2).

4. The ship cabin fireproof return air silencing equipment according to claim 1 is characterized by: Four arc-shaped baffles (14) are installed on the right side of the silencer (1), and a filter screen (15) is provided on the right side of the silencer (1). The outer side of the filter screen (15) is fitted with the inner side of the baffle (14), and a positioning component is provided on the baffle (14).

5. The ship cabin fireproof return air silencing equipment according to claim 4 is characterized in that: The positioning assembly includes two latches (16). Slots are provided at both the front and rear ends of the right side of the muffler (1). The latches (16) are provided in the slots. One end of the latch (16) is fixedly connected to the filter screen (15). A fixing assembly is provided on the latch (16).

6. The ship cabin fireproof return air silencing equipment according to claim 5, characterized in that: The fixing assembly includes two U-shaped fixing frames (18), which are respectively installed on the front and rear sides of the silencer (1). A bolt (17) is threadedly installed on the fixing frame (18). The front and rear sides of the silencer (1) are both provided with a through slot, which is connected to the slot. One end of the bolt (17) extends into the through slot and is threadedly connected to the latch (16).

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