Noise reduction air volume adjustment control device

Abstract

A noise reduction air volume adjustment control device belongs to the technical field of marine engineering air conditioning and ventilation systems, comprising an air duct, wherein a noise reduction adjustment structure is provided inside the air duct, and a support structure is fixedly installed inside the noise reduction adjustment structure, and the support structure comprises a support rod; through the noise reduction adjustment structure, when the air duct is subjected to noise reduction and air volume adjustment, the foam plastic column is squeezed by hand. Since the foam plastic column is soft in texture, it can be stuffed into the air outlet of the air duct, and the air volume entering the cabin through the foam plastic column can be adjusted by inserting different numbers of first plungers and second plungers into corresponding holes. At the same time, since the foam plastic column and the multiple first plungers and second plungers have an open structure and high density, the device has good sound absorption ability. By placing multiple foam plastic columns in the air duct, the noise reduction ability of the device can be improved, thereby achieving the purpose of reducing the airflow noise in the air duct and adjusting and controlling the air volume.

Description

Technical Field

[0001] The present invention relates to the technical field of marine engineering air conditioning and ventilation systems, and in particular to a noise reduction air volume adjustment and control device. Background Art

[0002] A marine ventilation system primarily consists of fans, air ducts, dampers, grilles, dampers, and ducts. These components work together to ensure air circulation and ventilation within the cabin. Regular inspection, maintenance, and cleaning are essential during daily use. This includes cleaning the ventilation heads and ducts, and inspecting the duct supports and fan diameters and axial clearances. Furthermore, fans must be operated strictly according to operating procedures to ensure proper functioning of the ventilation system and extend its service life.

[0003] The existing marine ventilation ducts still have certain deficiencies in actual use: the airflow noise of the ducts in the existing marine ventilation system has a great impact on the cabin noise, and for the already installed spiral ducts, it is rather troublesome to add new devices to achieve noise reduction and air volume adjustment functions. Based on the deficiencies of the existing technology, the present invention designs a noise reduction air volume adjustment control device. Summary of the Invention

[0004] The present invention provides a noise reduction air volume adjustment control device, which has the advantages of reducing airflow noise in an air duct and adjusting and controlling the air volume, thereby solving the problems mentioned in the above background technology.

[0005] The present invention provides the following technical solution: a noise reduction air volume adjustment control device, comprising an air duct, a noise reduction adjustment structure is arranged inside the air duct, a support structure is fixedly installed inside the noise reduction adjustment structure, and the support structure includes a support rod; the noise reduction adjustment structure includes a foam plastic column, a connecting hole is opened inside the foam plastic column, and the connecting hole is fixedly connected to the support rod, four first plungers are movably installed inside the foam plastic column, and a first handle is fixedly installed on one side of the four first plungers, and four second plungers are movably installed inside the foam plastic column, and a second handle is fixedly installed on one side of the four second plungers.

[0006] As a preferred technical solution of the present invention, a first threaded portion is provided on one side of the outer surface of the support rod, a connecting pipe is rotatably mounted on one end of the support rod, and a second threaded portion is provided on one end of the outer surface of the support rod.

[0007] As a preferred technical solution of the present invention, the outer surface of the first threaded portion is provided with a fixing structure, and the fixing structure includes a threaded tube, two third hinged seats and two fourth hinged seats.

[0008] As a preferred technical solution of the present invention, the threaded tube is threadedly connected to the first threaded part, a sleeve is fixedly installed on one side of the outer surface of the threaded tube, the sleeve is sleeved on the outer surface of the support rod, and a handwheel is fixedly installed on one side of the sleeve.

[0009] As a preferred technical solution of the present invention, a collar is slidably mounted inside the threaded tube, and first hinged seats are fixedly mounted on upper and lower sides of the outer surface of the collar.

[0010] As a preferred technical solution of the present invention, the first hinged rods are hingedly installed inside the two first hinged seats, the second hinged seats are hingedly installed at one end of the two first hinged rods, and the bottoms of the two second hinged seats are fixedly installed with support plates.

[0011] As a preferred technical solution of the present invention, the two third hinged seats are fixed on the upper and lower sides of the connecting pipe, and the second hinged rods are hingedly installed inside the two third hinged seats, and the two second hinged rods are hingedly connected to the two support plates respectively.

[0012] As a preferred technical solution of the present invention, the two fourth hinged seats are fixed on the upper and lower sides of the connecting pipe, and the third hinged rods are hingedly installed inside the two fourth hinged seats. One end of the two third hinged rods is hingedly connected to the two support plates respectively.

[0013] As a preferred technical solution of the present invention, a protective structure is provided on the outer surface of the support rod, and the protective structure includes a holder, a protective net and a fastening bolt.

[0014] As a preferred technical solution of the present invention, the holder is fixedly connected to the support rod, the protective net is clamped inside the holder, and the fastening bolt is threadedly connected to the second threaded portion.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This noise-reducing air volume adjustment and control device utilizes a noise reduction adjustment structure. When reducing noise and adjusting air volume in an air duct, the foam plastic column is squeezed by hand. Due to its soft texture, the foam plastic column can be inserted into the air outlet of the air duct. By inserting different numbers of first and second plungers into corresponding holes, the air volume entering the cabin through the foam plastic column can be adjusted. At the same time, due to the open structure and high density of the foam plastic column and the multiple first and second plungers, the device has good sound absorption ability. By placing multiple foam plastic columns in the air duct, the noise reduction ability of the device can be improved, thereby achieving the purpose of reducing airflow noise in the air duct and adjusting and controlling the air volume.

[0017] 2. This noise-reducing air volume adjustment and control device has a fixed structure. When the foam plastic column is inserted into the duct vent, the hand wheel is turned to rotate the sleeve and the threaded tube is driven to rotate. Due to the limitation of the two first hinged seats, when the threaded tube rotates, the collar does not rotate and the two first hinged rods squeeze the support plate. Since the support plate is connected by the two second hinged rods and the two third hinged rods, the two support plates can move horizontally up and down, thereby supporting the inner wall of the duct. Due to the self-locking property of the threaded tube and the first threaded portion, the noise reduction adjustment structure can be fixed more stably inside the duct.

[0018] 3. This noise reduction air volume adjustment control device uses a protective structure. After the noise reduction adjustment structure is fixed, the protective net is put into the support rod and clamped inside the base, and then the fastening bolt is put on the second threaded part and tightened, so that the protective net can be fixed, thereby preventing foreign matter from entering the cabin from the inside of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0020] Figure 2 Schematic diagram of the support structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the foam plastic column of the present invention;

[0022] Figure 4 This is a schematic diagram of the first handle structure of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the first threaded portion of the present invention;

[0024] Figure 6 This is a schematic diagram of the handwheel structure of the present invention;

[0025] Figure 7 This is a structural schematic diagram of the second hinged seat of the present invention.

[0026] In the figure: 1. air duct; 2. supporting structure; 21. supporting rod; 22. first threaded portion; 23. connecting pipe; 24. second threaded portion; 3. noise reduction adjustment structure; 31. foam plastic column; 32. connecting hole; 33. first plunger; 34. second plunger; 35. first handle; 36. second handle; 4. fixing structure; 41. threaded pipe; 42. sleeve; 43. handwheel; 44. collar; 45. first articulated seat; 46. first articulated rod; 47. second articulated seat; 48. support plate; 49. third articulated seat; 410. second articulated rod; 411. fourth articulated seat; 412. third articulated rod; 5. protective structure; 51. holder; 52. protective net; 53. fastening bolt. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-7 A noise reduction air volume adjustment control device includes an air duct 1, a noise reduction adjustment structure 3 is provided inside the air duct 1, a support structure 2 is fixedly installed inside the noise reduction adjustment structure 3, and the support structure 2 includes a support rod 21; the noise reduction adjustment structure 3 includes a foam plastic column 31, a connecting hole 32 is opened inside the foam plastic column 31, the connecting hole 32 is fixedly connected to the support rod 21, four first plungers 33 are movably installed inside the foam plastic column 31, a first handle 35 is fixedly installed on one side of the four first plungers 33, four second plungers 34 are movably installed inside the foam plastic column 31, and a second handle 36 is fixedly installed on one side of the four second plungers 34.

[0029] See also Figure 5-7 A first threaded portion 22 is provided on one side of the outer surface of the support rod 21. A connecting tube 23 is rotatably mounted on one end of the support rod 21. A second threaded portion 24 is provided on one end of the outer surface of the support rod 21. A fixing structure 4 is provided on the outer surface of the first threaded portion 22. The fixing structure 4 includes a threaded tube 41, two third hinged seats 49, and two fourth hinged seats 411. The threaded tube 41 is threadedly connected to the first threaded portion 22. A sleeve 42 is fixedly mounted on one side of the outer surface of the threaded tube 41. The sleeve 42 is sleeved on the outer surface of the support rod 21, and a handwheel 43 is fixedly mounted on one side of the sleeve 42. A collar 44 is slidably mounted inside the threaded tube 41. First hinged seats 45 are fixedly mounted on the upper and lower sides of the outer surface of the collar 44. First hinged rods 46 are hingedly mounted inside the two first hinged seats 45. Second hinged seats 47 are hingedly mounted on one end of the two first hinged rods 46. Support plates 48 are fixedly mounted on the bottoms of the two second hinged seats 47. Two third hinged seats 49 are fixed to the upper and lower sides of the connecting tube 23. Second hinged rods 410 are hingedly mounted inside the two third hinged seats 49. The two second hinged rods 410 are respectively hingedly connected to the two support plates 48. Two fourth hinged seats 411 are fixed to the upper and lower sides of the connecting tube 23. Third hinged rods 412 are hingedly mounted inside the two fourth hinged seats 411. One end of the two third hinged rods 412 is respectively hingedly connected to the two support plates 48.

[0030] When the foam plastic column 31 is inserted into the vent of the air duct 1, the hand wheel 43 is turned to make the sleeve 42 drive the threaded tube 41 to rotate. Due to the limitation of the two first hinged seats 45, when the threaded tube 41 rotates, the ring 44 does not rotate and makes the two first hinged rods 46 squeeze the support plate 48. Since the support plate 48 is connected by the two second hinged rods 410 and the two third hinged rods 412, the two support plates 48 can be moved horizontally up and down, thereby supporting the inner wall of the air duct 1. Due to the sub-stringency of the threaded tube 41 and the first threaded portion 22, the noise reduction adjustment structure 3 can be fixed more stably inside the air duct 1.

[0031] See also Figure 1 and Figure 5 The outer surface of the support rod 21 is provided with a protective structure 5, which includes a holder 51, a protective net 52 and a fastening bolt 53. The holder 51 is fixedly connected to the support rod 21, the protective net 52 is stuck inside the holder 51, and the fastening bolt 53 is threadedly connected to the second threaded portion 24.

[0032] After the noise reduction adjustment structure 3 is fixed, the protective net 52 is put into the support rod 21 and clamped inside the holder 51, and then the fastening bolt 53 is put on the second threaded part 24 and tightened to fix the protective net 52, thereby preventing foreign matter from entering the cabin from the inside of the air duct 1.

[0033] Working principle: When a noise reduction air volume adjustment control device is used, first squeeze the foam plastic column 31 by hand. Since the foam plastic column 31 is soft, it can be inserted into the air outlet of the air duct 1. By inserting different numbers of first plungers 33 and second plungers 34 into the corresponding holes, the air volume entering the cabin through the foam plastic column 31 can be adjusted. Then, by turning the hand wheel 43, the sleeve 42 drives the threaded tube 41 to rotate. Due to the limitation of the two first hinge seats 45, when the threaded tube 41 rotates, the collar 44 does not rotate and squeezes the two first hinge rods 46. The support plate 48 is pressed, and since the support plate 48 is connected by two second hinged rods 410 and two third hinged rods 412, the two support plates 48 can be moved horizontally up and down, thereby supporting the inner wall of the air duct 1. Due to the self-locking property of the threaded tube 41 and the first threaded portion 22, the noise reduction adjustment structure 3 can be fixed more stably inside the air duct 1. Finally, the protective net 52 is put into the support rod 21 and clamped inside the holder 51, and then the fastening bolt 53 is put on the second threaded portion 24 and tightened, so that the protective net 52 can be fixed, thereby preventing foreign matter from entering the cabin from the inside of the air duct 1.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction air volume control device, comprising an air duct (1), characterized in that: A noise reduction adjustment structure (3) is provided inside the air duct (1), a support structure (2) is fixedly installed inside the noise reduction adjustment structure (3), and the support structure (2) includes a support rod (21); The noise reduction adjustment structure (3) includes a foam plastic column (31), a connection hole (32) is provided inside the foam plastic column (31), the connection hole (32) is fixedly connected to the support rod (21), four first plungers (33) are movably installed inside the foam plastic column (31), a first handle (35) is fixedly installed on one side of the four first plungers (33), four second plungers (34) are movably installed inside the foam plastic column (31), and a second handle (36) is fixedly installed on one side of the four second plungers (34); A first threaded portion (22) is provided on one side of the outer surface of the support rod (21); a connecting pipe (23) is rotatably mounted on one end of the support rod (21); and a second threaded portion (24) is provided on one end of the outer surface of the support rod (21); The outer surface of the first threaded portion (22) is provided with a fixing structure (4), the fixing structure (4) comprising a threaded tube (41), two third hinged seats (49) and two fourth hinged seats (411); The threaded tube (41) is threadably connected to the first threaded portion (22); a sleeve (42) is fixedly mounted on one side of the outer surface of the threaded tube (41); the sleeve (42) is sleeved on the outer surface of the support rod (21); and a hand wheel (43) is fixedly mounted on one side of the sleeve (42); A collar (44) is slidably mounted inside the threaded tube (41), and first hinge seats (45) are fixedly mounted on upper and lower sides of the outer surface of the collar (44); A first hinge rod (46) is hingedly mounted inside the two first hinge seats (45), a second hinge seat (47) is hingedly mounted at one end of the two first hinge rods (46), and a support plate (48) is fixedly mounted at the bottom of the two second hinge seats (47); The two third hinged seats (49) are fixed on the upper and lower sides of the connecting pipe (23), and the second hinged rods (410) are hingedly installed inside the two third hinged seats (49), and the two second hinged rods (410) are hingedly connected to the two support plates (48) respectively; The two fourth hinged seats (411) are fixed on the upper and lower sides of the connecting pipe (23), and the third hinged rods (412) are hingedly installed inside the two fourth hinged seats (411). One end of the two third hinged rods (412) is hingedly connected to the two support plates (48) respectively.

2. The noise reduction air volume adjustment control device according to claim 1, characterized in that: The outer surface of the support rod (21) is provided with a protective structure (5), and the protective structure (5) comprises a clamping seat (51), a protective net (52) and a fastening bolt (53).

3. The noise reduction air volume adjustment control device according to claim 2, characterized in that: The clamping seat (51) is fixedly connected to the support rod (21), the protective net (52) is clamped inside the clamping seat (51), and the fastening bolt (53) is threadedly connected to the second threaded portion (24).

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