Pressure adjusting device for ship cabin ventilation pipeline

Abstract

The utility model belongs to the technical field of pressure adjusting devices, and particularly relates to a pressure adjusting device for a ship cabin ventilating duct, which comprises a ventilating duct, the inner wall of the ventilating duct is fixedly connected with four sliding sleeves, the sliding sleeves penetrate through the inner wall of the ventilating duct, the interior of each sliding sleeve is connected with a sliding pin in a sliding manner, and the sliding pins are arranged in the ventilating duct. And the tail end of the sliding pin is fixedly connected with an arc mouth. The four same arc nozzles are arranged on the inner side of the ventilation pipeline, the arc nozzles are sealed through the sealing rubber pieces and the connecting rubber pieces, each arc nozzle is provided with the sliding pin extending to the outside of the ventilation pipeline and provided with the spring, and in addition, the adjusting sleeve in threaded connection with the ventilation pipeline is arranged on the outer side of the ventilation pipeline, so that the ventilation pipeline is not prone to falling off. By screwing the adjusting sleeve, the sliding pin is stressed to retract inwards, so that the distance between the arc nozzles is controlled, the diameter of the narrow opening of each arc nozzle is adjusted, the purpose of adjusting the pressure of the ventilation pipeline is achieved, and operation is easy and convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure regulating devices, specifically a pressure regulating device for ventilation ducts in ship cabins. Background Technology

[0002] Utility model patent CN212868608U discloses a pressure regulating device for ship cabin air conditioning ventilation ducts, including a ventilation duct with an air intake pipe inside. A support ring is located at the right end of the air intake pipe, and a baffle is located on the right side of the support ring. A connecting block is fixedly connected to the bottom of the baffle. By setting the baffle inside the ventilation duct, a return spring provides a leftward thrust to the baffle. When the wind pressure is high, the wind force pushes the baffle to the right, opening the right end of the air intake pipe and releasing the exhaust pressure, maintaining the wind pressure balance inside the ventilation duct and facilitating pressure regulation. Through the cooperation of the support ring and a buffer pad, when the baffle contacts the support ring, the buffer pad reduces the impact force between the baffle and the support ring, preventing noise. Simultaneously, the support ring compresses the buffer spring to the left, further reducing the impact force and preventing damage to the baffle. However, current pressure regulating devices for ship cabin ventilation ducts are located inside the ventilation duct, making operation inconvenient and prone to loosening and instability after adjustment. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to provide a pressure regulating device for ship cabin ventilation ducts, which solves the problems that current pressure regulating devices for ship cabin ventilation ducts are located inside the ventilation ducts, making them inconvenient to operate, and are prone to loosening and instability after adjustment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pressure regulating device for a ship's cabin ventilation duct, comprising a ventilation duct, four sliding sleeves fixedly connected to the inner wall of the ventilation duct, the sliding sleeves penetrating the inner wall of the ventilation duct, a sliding pin slidably connected inside each sliding sleeve, an arc-shaped nozzle fixedly connected to the end of the sliding pin, a retaining ring fixedly connected to the pin body of the sliding pin, a spring being sleeved on the outer side of the pin body of the sliding pin, one end of the spring being fixedly connected to the retaining ring, the other end of the spring being fixedly connected to the inner wall of the ventilation duct, an adjusting sleeve being threadedly connected to the outer side of the ventilation duct, the adjusting sleeve abutting against the sliding pin, and a locking mechanism being provided between the adjusting sleeve and the ventilation duct.

[0005] Preferably, a sealing film is fixedly connected between the wide openings of the four arc-shaped nozzles, and the sealing film is fixedly connected to the inner wall of the ventilation duct. The sealing film provides a seal around each arc-shaped nozzle.

[0006] Preferably, a connecting film is fixedly connected between two adjacent arc-shaped nozzles. The connecting film provides a sealing effect for the area between the arc-shaped nozzles.

[0007] Preferably, the inner ring wall of the sliding sleeve is provided with balls, and the balls are slidably connected to the sliding pin. By providing balls, the relative friction between the sliding pin and the sliding sleeve can be reduced.

[0008] Preferably, the locking mechanism includes a locking disc fixedly connected to the outer wall of the ventilation duct, a locking pin slidably connected inside the adjusting sleeve, the locking pin being inserted into the locking disc, and a second spring disposed inside the adjusting sleeve, one end of the second spring being fixedly connected to the locking pin, and the other end of the second spring being fixedly connected to the inner surface of the adjusting sleeve. The locking mechanism provides a locking effect on the adjusting sleeve, thereby providing stability for the adjustment of the sliding pin and the arc-shaped nozzle.

[0009] Preferably, a lever is fixedly connected to the pin body of the locking pin, and the lever is slidably connected to the adjusting sleeve. The lever facilitates the pulling of the locking pin.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model features four identical arc-shaped nozzles on the inner side of a ventilation duct, sealed with sealing and connecting films. Each arc-shaped nozzle has a sliding pin extending to the outside of the ventilation duct and equipped with a spring. Additionally, an adjusting sleeve threadedly connected to the nozzle is provided on the outer side of the ventilation duct. By turning the adjusting sleeve, the sliding pin is forced inward, thereby controlling the spacing between the arc-shaped nozzles and adjusting the narrow diameter of the nozzles. This achieves the purpose of regulating the pressure of the ventilation duct, making the operation simple and convenient.

[0012] 2. This utility model provides stability for the adjustment of the sliding pin and the arc nozzle by setting a locking mechanism between the adjusting sleeve and the ventilation duct. After the adjusting sleeve is adjusted by turning, the locking pin inside it is inserted and fixed to the locking disc. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 For the present utility model Figure 1 A front sectional view;

[0015] Figure 3 For the present utility model Figure 2 3D schematic diagram of local structure Figure 1 ;

[0016] Figure 4 For the present utility model Figure 2 3D schematic diagram of local structure Figure 2 .

[0017] In the diagram: 1. Ventilation duct; 2. Sealing film; 3. Arc nozzle; 31. Connecting film; 4. Sliding pin; 5. Retaining ring; 6. Spring 1; 7. Adjusting sleeve; 8. Locking mechanism; 9. Sliding sleeve; 10. Ball bearing; 81. Locking disc; 82. Locking pin; 83. Spring 2; 84. Lever. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 A pressure regulating device for a ship's cabin ventilation duct includes a ventilation duct 1. Four sliding sleeves 9 are fixedly connected to the inner wall of the ventilation duct 1, and the sliding sleeves 9 penetrate the inner wall of the ventilation duct 1. A sliding pin 4 is slidably connected inside each sliding sleeve 9. A ball bearing 10 is provided on the inner ring wall of the sliding sleeve 9, and the ball bearing 10 is slidably connected to the sliding pin 4. The ball bearing 10 reduces the relative friction between the sliding pin 4 and the sliding sleeve 9. An arc-shaped nozzle 3 is fixedly connected to the end of the sliding pin 4. A retaining ring 5 is fixedly connected to the pin body of the sliding pin 4. A spring 6 is sleeved on the outside of the pin body of the sliding pin 4. One end of the spring 6 is fixedly connected to the retaining ring 5, and the other end of the spring 6 is fixedly connected to the inner wall of the ventilation duct 1. An adjusting sleeve 7 is threadedly connected to the outside of the ventilation duct 1, and the adjusting sleeve 7 abuts against the sliding pin 4.

[0020] Please see Figure 2-4 A sealing film 2 is fixedly connected between the wide openings of the four arc-shaped nozzles 3, and the sealing film 2 is fixedly connected to the inner wall of the ventilation duct 1. The sealing film 2 provides a seal around the periphery of each arc-shaped nozzle 3. A connecting film 31 is fixedly connected between two adjacent arc-shaped nozzles 3. The connecting film 31 provides a seal between the arc-shaped nozzles 3.

[0021] Please see Figure 2A locking mechanism 8 is provided between the adjusting sleeve 7 and the ventilation duct 1. This locking mechanism 8 provides a locking effect on the adjusting sleeve 7, thereby stabilizing the adjustment of the sliding pin 4 and the arc-shaped nozzle 3. The locking mechanism 8 includes a locking disc 81 fixedly connected to the outer wall of the ventilation duct 1, a locking pin 82 slidably connected inside the adjusting sleeve 7, and the locking pin 82 being inserted into the locking disc 81. A second spring 83 is provided inside the adjusting sleeve 7, with one end fixedly connected to the locking pin 82 and the other end fixedly connected to the inner surface of the adjusting sleeve 7. A lever 84 is fixedly connected to the pin body of the locking pin 82, and the lever 84 is slidably connected to the adjusting sleeve 7. The lever 84 facilitates the pulling of the locking pin 82.

[0022] The specific implementation process of this utility model is as follows: In use, firstly, the locking pin 82 is pulled by the lever 84, so that the locking pin 82 is disengaged from the locking disc 81, thereby releasing the restriction on the adjusting sleeve 7. Then, the adjusting sleeve 7 is rotated, and the adjusting sleeve 7 moves to the left in the axial direction of the ventilation duct 1 through the threaded movement between the adjusting sleeve 7 and the ventilation duct 1. During its movement, the adjusting sleeve 7 applies radial extrusion force to the sliding pin 4 of the ventilation duct 1, thereby causing the sliding pin 4 to retract inward, and thus causing the arc end 3 of the sliding pin 4 to move synchronously. In this way, the spacing of each arc mouth 3 support can be adjusted, achieving the purpose of adjusting the pressure of the ventilation duct 1. The operation is simple and convenient. Finally, the lever 84 is released, and the locking pin 82 will be reset under the action of the spring 83 and re-inserted into the locking disc 81. This can lock and fix the adjusting sleeve 7, thereby providing stability for the adjustment of the sliding pin 4 and the arc mouth 3.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure regulating device for a ship's cabin ventilation duct, comprising a ventilation duct (1), characterized in that: The ventilation duct (1) is fixedly connected to four sliding sleeves (9), and the sliding sleeves (9) penetrate the inner wall of the ventilation duct (1). Each sliding sleeve (9) is slidably connected to a sliding pin (4). The end of the sliding pin (4) is fixedly connected to an arc mouth (3). A retaining ring (5) is fixedly connected to the pin body of the sliding pin (4). A spring (6) is sleeved on the outside of the pin body of the sliding pin (4). One end of the spring (6) is fixedly connected to the retaining ring (5), and the other end of the spring (6) is fixedly connected to the inner wall of the ventilation duct (1). An adjusting sleeve (7) is threadedly connected to the outside of the ventilation duct (1). The adjusting sleeve (7) abuts against the sliding pin (4). A locking mechanism (8) is provided between the adjusting sleeve (7) and the ventilation duct (1).

2. The pressure regulating device for ship cabin ventilation ducts according to claim 1, characterized in that: A sealing film (2) is fixedly connected between the wide openings of the four arc-shaped nozzles (3), and the sealing film (2) is fixedly connected to the inner wall of the ventilation duct (1).

3. A pressure regulating device for ship cabin ventilation ducts according to claim 1, characterized in that: A connecting film (31) is fixedly connected between two adjacent arc nozzles (3).

4. A pressure regulating device for ship cabin ventilation ducts according to claim 1, characterized in that: The inner ring wall of the sliding sleeve (9) is provided with balls (10), and the balls (10) are slidably connected to the sliding pin (4).

5. A pressure regulating device for ship cabin ventilation ducts according to claim 1, characterized in that: The locking mechanism (8) includes a locking disc (81) fixedly connected to the outer wall of the ventilation duct (1), a locking pin (82) slidably connected inside the adjusting sleeve (7), the locking pin (82) being inserted into the locking disc (81), and a second spring (83) provided inside the adjusting sleeve (7), one end of the second spring (83) being fixedly connected to the locking pin (82), and the other end of the second spring (83) being fixedly connected to the inner surface of the adjusting sleeve (7).

6. A pressure regulating device for ship cabin ventilation ducts according to claim 5, characterized in that: A lever (84) is fixedly connected to the pin body of the locking pin (82), and the lever (84) is slidably connected to the adjusting sleeve (7).

Images