Noise reduction air volume regulation control device

Abstract

A noise reduction air volume regulation control device belongs to the technical field of ocean engineering air conditioner ventilation systems and comprises an air pipe, a noise reduction regulation structure is arranged in the air pipe, a supporting structure is fixedly mounted in the noise reduction regulation structure, and the supporting structure comprises a supporting rod; by means of the noise reduction adjusting structure, when noise reduction and air volume adjustment are conducted on the air pipe, a foamed plastic column is squeezed by hands, due to the fact that the foamed plastic column is soft, the foamed plastic column can be plugged into an air outlet of the air pipe, and the air volume entering a cabin through the foamed plastic column can be adjusted by inserting different numbers of first plungers and second plungers into corresponding holes; and meanwhile, the foamed plastic columns, the first plungers and the second plungers have open structures and high density, so that the device has good sound absorption capacity, the noise reduction capacity of the device can be improved by placing the foamed plastic columns in the air pipe, and the purposes of reducing airflow noise in the air pipe and adjusting and controlling the air volume are achieved.

Description

Technical Field

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

[0002] The marine ventilation system is mainly composed of fans, air cylinders, wind gates, ventilation grilles, dampers, ventilation pipes, etc. These components work together to ensure air circulation and ventilation in the cabin. The marine ventilation system needs to be regularly inspected, maintained and cleaned in daily use. This includes cleaning the ventilation head and ventilation pipe, checking the diameter and axial clearance of the ventilation pipe support and the fan, etc. At the same time, the fan should be operated strictly according to the operating procedures to ensure the normal operation 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 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 being able to adjust and control 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, wherein 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 comprises a support rod; the noise reduction adjustment structure comprises a foam plastic column, a connecting hole is opened inside the foam plastic column, the connecting hole is fixedly connected to the support rod, four first plungers are movably installed inside the foam plastic column, 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 portion, 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, a first hinge rod is hingedly installed inside the two first hinge seats, a second hinge seat is hingedly installed at one end of the two first hinge rods, and a support plate is fixedly installed at the bottom of the two second hinge seats.

[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, 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 are respectively hingedly connected to the two support plates.

[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. A noise reduction air volume adjustment control device, through the noise reduction adjustment structure, when reducing the noise and adjusting the air volume of the air duct, by squeezing the foam plastic column by hand, the foam plastic column can be inserted into the air outlet of the air duct due to its soft texture, 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 the air volume;

[0017] 2. The noise reduction air volume adjustment control device has a fixed structure. When the foam plastic column is inserted into the air duct vent, the sleeve drives the threaded tube to rotate by turning the hand wheel. Due to the limitation of the two first hinge seats, when the threaded tube rotates, the sleeve does not rotate and the two first hinge rods squeeze the support plate. Since the support plate is connected by the two second hinge rods and the two third hinge rods, the two support plates can be moved up and down horizontally, thereby supporting the inner wall of the air duct. Due to the self-locking property of the threaded tube and the first threaded part, the noise reduction adjustment structure can be fixed more stably inside the air 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 socket, 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 It is a 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 It is a schematic diagram of the structure of the first threaded portion of the present invention;

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

[0025] Figure 7 It is a schematic diagram of the structure 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. hand wheel; 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. protection structure; 51. holder; 52. protection net; 53. fastening bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7 A noise reduction air volume adjustment control device comprises an air duct 1, a noise reduction adjustment structure 3 is arranged inside the air duct 1, a support structure 2 is fixedly installed inside the noise reduction adjustment structure 3, and the support structure 2 comprises a support rod 21; the noise reduction adjustment structure 3 comprises a foam plastic column 31, a connection hole 32 is opened 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.

[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 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. A fixing structure 4 is provided on the outer surface of the first threaded portion 22, and 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 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 hinged seats 45 are fixedly mounted on the upper and lower sides of the outer surface of the collar 44. A first hinged rod 46 is hingedly mounted inside the two first hinged seats 45, and a second hinged seat 47 is hingedly mounted on one end of the two first hinged rods 46, and a support plate 48 is fixedly mounted on the bottom of the two second hinged seats 47. Two third hinge seats 49 are fixed on the upper and lower sides of the connecting tube 23, and second hinge rods 410 are hingedly installed inside the two third hinge seats 49. The two second hinge rods 410 are respectively hingedly connected to the two support plates 48. Two fourth hinge seats 411 are fixed on the upper and lower sides of the connecting tube 23, and third hinge rods 412 are hingedly installed inside the two fourth hinge seats 411. One end of the two third hinge 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 up and down horizontally to support the inner wall of the air duct 1. Due to the sub-core 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 clamping seat 51, a protective net 52 and a fastening bolt 53. 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.

[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, 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.

[0033] Working principle: when a noise reduction air volume adjustment control device is used, firstly, the foam plastic column 31 is squeezed 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 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 sleeve 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 article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction air volume adjustment control device, comprising an air duct (1), characterized in that: The air duct (1) is provided with a noise reduction adjustment structure (3), the noise reduction adjustment structure (3) is fixedly installed with a support structure (2), and the support structure (2) comprises a support rod (21); The noise reduction adjustment structure (3) comprises 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), and four second plungers (34) are movably installed inside the foam plastic column (31), a second handle (36) is fixedly installed on one side of the four second plungers (34).

2. The noise reduction air volume adjustment control device according to claim 1, characterized in that: 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).

3. The noise reduction air volume adjustment control device according to claim 2, characterized in that: The outer surface of the first threaded portion (22) is provided with a fixing structure (4), and the fixing structure (4) comprises a threaded tube (41), two third hinged seats (49) and two fourth hinged seats (411).

4. The noise reduction air volume adjustment control device according to claim 3 is characterized in that: 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).

5. The noise reduction air volume adjustment control device according to claim 3, characterized in that: 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).

6. The noise reduction air volume adjustment control device according to claim 5, characterized in that: A first hinge rod (46) is hingedly installed inside the two first hinge seats (45), a second hinge seat (47) is hingedly installed at one end of the two first hinge rods (46), and a support plate (48) is fixedly installed at the bottom of the two second hinge seats (47).

7. The noise reduction air volume adjustment control device according to claim 3, characterized in that: 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.

8. The noise reduction air volume adjustment control device according to claim 3, characterized in that: 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.

9. 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).

10. The noise reduction air volume adjustment control device according to claim 9, 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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