Electric closed air valve of marine air conditioner

Abstract

The utility model discloses an electric closed air valve of a marine air conditioner, which adopts an air valve body formed by splicing and welding plate-shaped sheet metal parts and an air valve actuator with a built-in servo motor, and can control a driving blade and a driven blade to rotate through a driving rotating shaft so as to realize opening or closing of the air valve. The air valve further adopts a shaft sealing assembly to be matched with the driving blade and the driven blade to conduct air valve sealing treatment, the shaft sealing assembly comprises an elastic inner shaft sealing sleeve and a screw cap, the elastic inner shaft sealing sleeve is arranged in an n shape, an inclined face is arranged on the inner side tightly attached to the rotating shaft, torsion space can be fully reserved, and the sealing effect is kept when the air valve is opened or closed.

Description

Technical Field

[0001] The utility model relates to the technical field of marine air conditioners, in particular to an electric closed air valve for a marine air conditioner. Background Art

[0002] When a marine air conditioner is in use, in order to ensure the comfort and air quality in the cabin, the marine air conditioner usually needs to be equipped with an air conditioning electric damper.

[0003] The electric air valve of air conditioner is an electrically controlled device. It can be used for the air inlet and outlet of air conditioner system according to the working status of air conditioner system and the changes of internal environment of ship, and control the air volume and direction of air conditioner system, so as to adjust the temperature, humidity and fresh air ventilation in cabin. However, the traditional electric air valve of air conditioner only controls the air valve blades, but there is a gap between the rotating shaft of electric drive and the air valve bracket. The traditional sealing structure is still easy to leak air in this gap, which not only affects the cooling or heating of marine air conditioner, but also increases the energy consumption of marine air conditioner. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide an electric closed air valve for a marine air conditioner.

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

[0006] A marine air-conditioning electric closed air valve comprises an air valve body welded together by splicing plate-shaped sheet metal parts, an air valve actuator fixedly mounted on one side of the air valve body by screws, a rotating shaft with one end connected to the output end of the air valve actuator and the other end inserted into the air valve body, an active blade fixedly mounted on the rotating shaft and rotating with the rotating shaft, a driven blade connected to the air valve body by an axis and parallel to the active blade, and a connecting rod hingedly mounted to the active blade at one end and hingedly mounted to the driven blade at the other end, and also comprises a shaft sealing assembly sleeved on the rotating shaft and mounted in cooperation with the air valve body, the shaft sealing assembly comprising an elastic inner shaft sealing sleeve sleeved on the rotating shaft, and a screw cover sleeved on the rotating shaft and extruded by the elastic inner shaft sealing sleeve by screwing with the air valve body.

[0007] Preferably, the elastic inner shaft sealing sleeve is arranged in an "n" shape.

[0008] Furthermore, an inclined surface is provided on the inner side of the end of the elastic inner shaft sealing sleeve that is in close contact with the rotating shaft.

[0009] Preferably, a seat sleeve with threads on the outside is welded to the portion of the air valve body where the rotating shaft is assembled.

[0010] Preferably, the air valve actuator is an actuator with a built-in servo motor.

[0011] The beneficial effects of the utility model are as follows: the air valve body which is welded and spliced ​​with plate-like sheet metal parts, and the air valve actuator with a built-in servo motor can control the rotation of the active blades and the driven blades by driving the rotating shaft to realize the opening or closing of the air valve. More importantly, the air valve also adopts a shaft sealing assembly to cooperate with the active blades and the driven blades to seal the air valve, including welding a seat sleeve with a threaded surface on the outside to the position where the rotating shaft is assembled on the air valve body, and fitting an elastic inner shaft sealing sleeve on the rotating shaft 3, which is tightened on the seat sleeve through a screw cover. Since the elastic inner shaft sealing sleeve is arranged in an "n" shape and an inclined surface is arranged on the inner side close to the rotating shaft, sufficient torsional space can be reserved under the action of the tightening force of the screw cover to maintain the sealing effect when the air valve is opened or closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of an electric closed air valve for marine air conditioner of the utility model;

[0013] Figure 2 for Figure 1 Side view of;

[0014] Figure 3 for Figure 1 An enlarged view of detail view A in FIG. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0016] Example

[0017] like Figure 1-3 As shown, an electric closed air valve for marine air conditioning comprises an air valve body 1 which is welded and spliced ​​by plate-like sheet metal parts, an air valve actuator 2 which is fixedly mounted on one side of the air valve body 1 by screws, a rotating shaft 3 which has one end connected to the output end of the air valve actuator 2 and the other end inserted into the air valve body 1, an active blade 4 which is fixedly mounted on the rotating shaft 3 and rotates with the rotating shaft 3, a driven blade 5 which is connected to the air valve body 1 by an axis and is parallel to the active blade 4, and a connecting rod 6 which has one end hingedly mounted to the active blade 4 and the other end hingedly mounted to the driven blade 5, and also comprises a shaft sealing assembly 7 which is sleeved on the rotating shaft 3 and mounted in cooperation with the air valve body 1, and the shaft sealing assembly 7 comprises an elastic inner shaft sealing sleeve 71 which is sleeved on the rotating shaft 3, and a screw cover 72 which is sleeved on the rotating shaft 3 and extrudes the elastic inner shaft sealing sleeve 71 by screwing with the air valve body 1.

[0018] In this embodiment, the design of the air valve body and the shaft seal assembly can effectively prevent the entry of outside air or the leakage of internal air, ensuring the normal operation and effect of the ship's air conditioning system. In addition, the use of electric actuators and closed designs can achieve precise control and adjustment of air conditioning air volume, improve energy utilization efficiency, and reduce energy consumption and operating costs.

[0019] The portion of the air valve body 1 where the rotating shaft 3 is assembled is welded with a seat sleeve 11 with threads on the outside. Specifically, an elastic inner shaft sealing sleeve 71 is arranged in the seat sleeve 11, and the seat sleeve 11 is used to cooperate with the shaft sealing assembly 7 to perform air valve sealing processing.

[0020] In this embodiment, the elastic inner shaft sealing sleeve 71 is arranged in an "n" shape. Specifically, after the elastic inner shaft sealing sleeve 71 is in close contact with the rotating shaft 3, the outer side of the elastic inner shaft sealing sleeve 71 is in close contact with the inner side of the seat sleeve 11, and the inner side of the elastic inner shaft sealing sleeve 71 is tightly wrapped around the rotating shaft 3 due to its own elasticity, and the sealing assembly is completed under the extrusion of the screw cover 72.

[0021] Among them, an inclined surface 711 is provided on the inner side of the end of the elastic inner shaft sealing sleeve 71 that is close to the rotating shaft 3. Specifically, sufficient torsional space can be reserved for the elastic inner shaft sealing sleeve 71. When the air valve actuator 2 drives the rotating shaft 3 to control the active blades 4 and the driven blades 5 to realize the opening or closing of the air valve, the elastic inner shaft sealing sleeve 71 can undergo a certain distance of torsional deformation in the reserved torsional space and always be close to the rotating shaft 3 to maintain the sealing effect.

[0022] The damper actuator 2 is an actuator with a built-in servo motor. Specifically, it can control the rotation of the active blade 4 by driving the rotating shaft 3, and at the same time use the connecting rod 6 to drive the driven blade 5 to rotate, so as to realize the opening or closing of the damper.

[0023] The above-mentioned embodiments of the utility model are not intended to limit the protection scope of the utility model, and the implementation methods of the utility model are not limited to these. All other various forms of modifications, replacements or changes made to the above-mentioned structure of the utility model based on the above-mentioned contents of the utility model, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the utility model, should fall within the protection scope of the utility model.

Claims

1. An electric airtight damper for marine air conditioning, comprising a damper body welded by splicing plate-shaped sheet metal parts, a damper actuator fixedly mounted on one side of the damper body by screws, a rotating shaft with one end connected to the output end of the damper actuator and the other end inserted into the damper body, an active blade fixedly mounted on the rotating shaft and rotating with the rotating shaft, a driven blade connected to the damper body by a shaft and parallel to the active blade, and a connecting rod with one end hingedly mounted to the active blade and the other end hingedly mounted to the driven blade, characterized in that: It also includes a shaft sealing assembly that is sleeved on the rotating shaft and installed in cooperation with the air valve body. The shaft sealing assembly includes an elastic inner shaft sealing sleeve sleeved on the rotating shaft and a screw cover sleeved on the rotating shaft and screwed together with the air valve body to squeeze the elastic inner shaft sealing sleeve.

2. The marine air conditioning electric sealed air valve according to claim 1, characterized in that: The elastic inner shaft sealing sleeve is arranged in an "n" shape.

3. The marine air conditioning electric closed air valve according to claim 2, characterized in that: An inclined surface is arranged on the inner side of the end of the elastic inner shaft sealing sleeve that is in close contact with the rotating shaft.

4. The marine air conditioning electric sealed air valve according to claim 1, characterized in that: A seat sleeve with threads on the outside is welded on the part where the rotating shaft is assembled on the air valve body.

5. The marine air conditioning electric sealed air valve according to claim 1, characterized in that: The air valve actuator is an actuator with a built-in servo motor.

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