Fan valve with closing angle convenient to adjust

Abstract

The utility model discloses a fan valve with a closing angle convenient to adjust, and relates to the technical field of fan valves, one side of a mounting plate is provided with a mounting box, an angle adjusting motor is mounted in the mounting box, the driving end of the angle adjusting motor is connected with an adjusting shaft, and the adjusting shaft is connected with an adjusting rod. One end of the adjusting shaft penetrates through the inner side of the fan valve body and is arranged behind the valve plate, second electric telescopic rods are arranged on the upper surface and the lower surface of the mounting box correspondingly, connecting rods are symmetrically arranged on the front surface of the valve plate, a sealing ring is arranged in the adjusting shaft, and the front ends of the connecting rods penetrate through the interior of the sealing ring; a limiting rod is arranged on the upper surface of the adjusting shaft in a penetrating mode, and a lifting rod is connected to the upper end of the limiting rod. And by arranging a mounting box, an angle adjusting motor, an adjusting shaft, a sealing ring, a second electric telescopic rod and a limiting sleeve, the closing angle of the valve plate can be automatically adjusted, the stability of the valve plate can be guaranteed, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of fan valves, in particular to a fan valve which is convenient for adjusting a closing angle. Background Art

[0002] A fan valve usually refers to a damper device installed at the air inlet or outlet of a ventilator. It is mainly used to control and adjust the ventilation volume, and to block the airflow and isolate the internal and external environments when not in use, thereby achieving functions such as sealing, shading, and heat preservation. This makes the fan valve widely used in air conditioning systems and ventilation systems, and when the fan valve is in use, the ventilation is controlled by its internal valve plate.

[0003] A Chinese patent discloses a controllable and adjustable air valve (authorization announcement number CN221504130U). This patented technology uses a spring to lift up a concave movable frame to protect the first and second bevel gears. The concave movable frame is pulled down and fixed to maintain the first and second bevel gears. After maintenance, the concave sliding fixed frame is pulled out and the concave movable frame will automatically reset to prevent external dust from damaging the two, reduce the frequency of maintenance, and improve the control and adjustment effect, making it easier to use.

[0004] However, most existing fan valves use manual rotation adjustment to adjust the angle, resulting in slow adjustment efficiency. Furthermore, the stability of the adjustment shaft cannot be guaranteed after adjustment, and the valve plate is prone to rotation when the wind is strong. For example, the aforementioned reference document uses manual adjustment of the valve plate angle. In actual application, when manually adjusting the valve plate angle inside the fan valve, the adjustment efficiency is slow, and after adjustment, the valve plate is prone to rotation when the wind is strong, affecting the use of the fan valve. Therefore, those skilled in the art provide a fan valve that is easy to adjust the closing angle to solve the problems raised in the above background technology. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a fan valve that is easy to adjust the closing angle, thereby solving the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fan valve that is easy to adjust the closing angle, comprising: a fan valve body and a valve plate arranged inside the fan valve body, the outer side of the fan valve body is installed with a mounting plate by bolts, one side of the mounting plate is provided with a mounting box, an angle adjustment motor is installed inside the mounting box, the driving end of the angle adjustment motor is connected with an adjusting shaft, one end of the adjusting shaft passes through the inner side of the fan valve body and is arranged behind the valve plate, the upper surface and lower surface of the mounting box are both provided with a second electric telescopic rod, the front surface of the valve plate is symmetrically provided with a connecting rod, a sealing ring is opened inside the adjusting shaft, the front end of the connecting rod passes through the interior of the sealing ring, a limiting rod is passed through the upper surface of the adjusting shaft, and the upper end of the limiting rod is connected to a lifting rod.

[0007] As a further technical solution of the present invention, a first electric telescopic rod is further provided on the upper surface of the adjusting shaft below the lifting rod, and the telescopic end of the first electric telescopic rod is connected to the lower surface of the lifting rod.

[0008] As a further technical solution of the present invention, a limiting hole is further provided on the outside of the connecting rod, and the lower end of the limiting rod is embedded in the limiting hole.

[0009] As a further technical solution of the present invention, a seal is provided on the outside of the adjusting shaft on the outside of the fan valve body.

[0010] As a further technical solution of the present invention, the telescopic end of the second electric telescopic rod passes through the inner surface of the mounting box and is connected to a limiting sleeve, the inner side of the limiting sleeve contacts the outer side of the sealing ring, and the inner side of the limiting sleeve is provided with anti-slip stripes.

[0011] As a further technical solution of the present invention, a mounting hole is further provided on the front surface of the valve plate, and the rear end of the connecting rod is embedded in the mounting hole and threadedly connected to the mounting hole.

[0012] The utility model provides a fan valve that is easy to adjust the closing angle, which has the following beneficial effects compared with the prior art:

[0013] 1. The present invention is to design a fan valve that is easy to adjust the closing angle. Through the arrangement of an installation box, an angle adjustment motor, an adjustment shaft, a sealing ring, a second electric telescopic rod and a limit sleeve, the operation of the angle adjustment motor will cause the adjustment shaft to rotate, thereby adjusting the angle of the valve plate inside the fan valve body. The operation of the second electric telescopic rod will cause the limit sleeve to limit the adjustment shaft downward to ensure its stability and prevent the fan valve body from rotating due to strong wind force and affecting its use. The arrangement is simple, can automatically adjust the closing angle of the valve plate, and can ensure the stability of the valve plate, and has good practicality.

[0014] 2. The present invention is to design a fan valve that is easy to adjust the closing angle. Through the setting of the connecting rod, the limiting hole, the connecting hole, the lifting rod, the first electric telescopic rod and the limiting rod, the connecting rod is embedded in the connecting hole, and the lifting rod is raised and lowered by the operation of the first electric telescopic rod, so that the lower end of the limiting rod can be embedded in the limiting hole to quickly install the valve plate. The setting structure is simple and can make the valve plate quickly installed and disassembled, so that it can be replaced in time when the valve plate is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a fan valve that is easy to adjust the closing angle;

[0016] Figure 2 This is a schematic diagram of the internal structure of a mounting box in a fan valve that facilitates adjustment of the closing angle;

[0017] Figure 3 This is a structural diagram of a limit rod in a fan valve that facilitates adjustment of the closing angle;

[0018] Figure 4 This is a structural diagram of a connecting rod in a fan valve that facilitates adjustment of the closing angle.

[0019] In the figure: 1. Fan valve body; 2. Valve plate; 21. Connecting rod; 211. Limiting hole; 3. Mounting box; 31. Mounting plate; 32. Angle adjustment motor; 4. Adjusting shaft; 41. Sealing ring; 42. Connecting hole; 43. Lifting rod; 431. First electric telescopic rod; 432. Limiting rod; 5. Second electric telescopic rod; 51. Limiting sleeve. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-4The utility model provides a technical solution for a fan valve that is easy to adjust the closing angle: it includes: a fan valve body 1 and a valve plate 2 arranged inside the fan valve body 1, a mounting plate 31 is installed on the outside of the fan valve body 1 by bolts, a mounting box 3 is provided on one side of the mounting plate 31, an angle adjustment motor 32 is installed inside the mounting box 3, the driving end of the angle adjustment motor 32 is connected to an adjusting shaft 4, one end of the adjusting shaft 4 passes through the inner side of the fan valve body 1 and is arranged behind the valve plate 2, a second electric telescopic rod 5 is provided on the upper and lower surfaces of the mounting box 3, and the front surface of the valve plate 2 is opposite to the front surface of the valve plate 2. A connecting rod 21 is provided, and a sealing ring 41 is provided inside the adjusting shaft 4. The front end of the connecting rod 21 passes through the inside of the sealing ring 41, and a limiting rod 432 is provided on the upper surface of the adjusting shaft 4. The upper end of the limiting rod 432 is connected to a lifting rod 43. This setting utilizes the lifting and lowering of the lifting rod 43 to enable the limiting rod 432 to be embedded in the limiting hole 211 provided on the outside of the connecting rod 21, so that the valve plate 2 can be quickly installed. At the same time, the operation of the angle adjustment motor 32 will cause the adjusting shaft 4 to rotate, thereby achieving the purpose of automatically adjusting the closing angle of the valve plate 2.

[0022] like Figure 3 and Figure 4 As shown, a first electric telescopic rod 431 is further provided on the upper surface of the adjusting shaft 4 below the lifting rod 43, and the telescopic end of the first electric telescopic rod 431 is connected to the lower surface of the lifting rod 43. A limiting hole 211 is also provided on the outside of the connecting rod 21, and the lower end of the limiting rod 432 is embedded in the limiting hole 211. This setting utilizes the operation of the first electric telescopic rod 431 to make the lifting rod 43 rise and fall, and then the lower end of the limiting rod 432 can be embedded in or away from the limiting hole 211, so that the valve plate 2 can be installed and disassembled.

[0023] like Figure 2 As shown, a sealing ring 41 is provided on the outside of the adjustment shaft 4 on the outside of the fan valve body 1 . This arrangement utilizes the sealing ring 41 to ensure the sealing of the connection between the adjustment shaft 4 and the fan valve body 1 .

[0024] like Figure 2 As shown, the telescopic end of the second electric telescopic rod 5 passes through the inner surface of the installation box 3 and is connected to the limiting sleeve 51. The inner side of the limiting sleeve 51 contacts the outer side of the sealing ring 41, and the inner side of the limiting sleeve 51 is provided with anti-slip stripes. This setting utilizes the operation of the second electric telescopic rod 5 to make the limiting sleeve 51 rise and fall inside the installation box 3, and then the limiting sleeve 51 can be used to fix and limit the adjustment shaft 4.

[0025] like Figure 4 As shown, a mounting hole is also provided on the front surface of the valve plate 2, and the rear end of the connecting rod 21 is embedded in the mounting hole and threadedly connected to the mounting hole. This arrangement utilizes the threaded connection between the connecting rod 21 and the mounting hole to facilitate the installation and disassembly of the valve plate 2 and the connecting rod 21.

[0026] The working principle of the utility model is as follows: when the fan valve of the utility model is easy to adjust the closing angle, the valve plate 2 is first installed inside the fan valve body 1, and during installation, the connecting rods 21 symmetrically arranged on the front surface of the valve plate 2 are passed through the connecting hole 42, and the lifting rod 43 is raised and lowered by the operation of the first electric telescopic rod 431, so that the limiting rod 432 can move inside the adjusting shaft 4 and be embedded in the limiting hole 211 during the lifting, thereby achieving the purpose of installing the valve plate 2;

[0027] When the closing angle of the fan valve body 1 needs to be adjusted, the angle adjustment motor 32 can be started by an external power supply, which can drive the adjustment shaft 4 to rotate to rotate the valve plate 2, thereby achieving the purpose of adjusting the closing angle. After the adjustment, the second electric telescopic rod 5 on the upper and lower surfaces of the mounting box 3 can be started to work, which will cause the limit sleeve 51 to move toward the position of the adjustment shaft 4, thereby fixing the adjustment shaft 4 to avoid the strong wind force inside the fan valve body 1 causing rotation and affecting use.

[0028] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A fan valve that is easy to adjust the closing angle, characterized in that: include: A fan valve body (1) and a valve plate (2) arranged inside the fan valve body (1); a mounting plate (31) is mounted on the outside of the fan valve body (1) by bolts; a mounting box (3) is arranged on one side of the mounting plate (31); an angle adjustment motor (32) is mounted inside the mounting box (3); a driving end of the angle adjustment motor (32) is connected to an adjustment shaft (4); one end of the adjustment shaft (4) passes through the inside of the fan valve body (1) and is arranged behind the valve plate (2); a second electric telescopic rod (5) is arranged on the upper surface and the lower surface of the mounting box (3); a connecting rod (21) is symmetrically arranged on the front surface of the valve plate (2); a sealing ring (41) is opened inside the adjusting shaft (4); the front end of the connecting rod (21) passes through the inside of the sealing ring (41); a limiting rod (432) is passed through the upper surface of the adjusting shaft (4); the upper end of the limiting rod (432) is connected to a lifting rod (43).

2. A fan valve with easy adjustment of closing angle according to claim 1, characterized in that: A first electric telescopic rod (431) is further provided on the upper surface of the adjustment shaft (4) below the lifting rod (43), and the telescopic end of the first electric telescopic rod (431) is connected to the lower surface of the lifting rod (43).

3. The fan valve with easy adjustment of closing angle according to claim 1, characterized in that: A limiting hole (211) is further provided on the outside of the connecting rod (21), and the lower end of the limiting rod (432) is embedded in the limiting hole (211).

4. The fan valve with easy adjustment of closing angle according to claim 1, characterized in that: A sealing ring (41) is provided on the outside of the regulating shaft (4) and on the outside of the fan valve body (1).

5. The fan valve with easy adjustment of closing angle according to claim 1, characterized in that: The telescopic end of the second electric telescopic rod (5) passes through the inner surface of the installation box (3) and is connected to a limiting sleeve (51); the inner side of the limiting sleeve (51) contacts the outer side of the sealing ring (41), and the inner side of the limiting sleeve (51) is provided with anti-slip stripes.

6. The fan valve with easy adjustment of closing angle according to claim 1, characterized in that: The front surface of the valve plate (2) is also provided with a mounting hole, and the rear end of the connecting rod (21) is embedded in the mounting hole and is threadedly connected to the mounting hole.

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