Fan control box capable of adjusting air volume

Abstract

The utility model discloses a fan control box capable of adjusting air outlet volume, which relates to the technical field of fan control, and comprises a control box main body and a fan blade group, the rear side of the control box main body is fixedly connected with an annular shell, and one end of the annular shell is fixedly connected with an air outlet control mechanism. The control box body controls the movable rod of the electric cylinder to extend and push the angle folding rod, the angle folding rod rotates in the sliding sleeve and pushes the sliding sleeve to slide on the outer surface of the shifting rod, the tail end of the electric cylinder rotates around the installation rod, and therefore the shifting rod drives the inner ring to rotate anticlockwise in the middle of the limiting ring under tangential force. Each arc-shaped groove inside pushes the rod portion of the corresponding movable block to slide in the corresponding straight groove, the block portion of each movable block slides in the gap between the clamping ring protruding blocks, the multiple movable blocks gradually cover the corresponding straight groove and block an air channel formed by the arc-shaped grooves and the corresponding straight groove, the air outlet amount is reduced, a movable rod of the electric cylinder shrinks, the air outlet amount is increased, and therefore the air outlet amount is further adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of fan control, in particular to a fan control box capable of adjusting air output. Background Art

[0002] The fan control box is mainly used to control the start and stop of the fan. According to different functions, it can be divided into: positive pressure fan control box, ordinary fan control box, fresh fan control box, fire fan control box, smoke exhaust fan control box, one-in-one fan control box, two-speed fan control box, air conditioning fan control box, etc. The fire fan control box can be remotely controlled automatically, connected to the fire control system and intelligent control system, and feedback the high and low speed operation status signals of the fan at the same time. Generally, the low-speed gear is connected to the intelligent control system and is usually used as an exhaust fan. The high-speed gear is connected to the fire control system. When a fire occurs, the control signal from the fire control system is received to start the high-speed gear operation, and the low-speed control circuit is automatically cut off to achieve rapid smoke exhaust and ventilation.

[0003] For example, Chinese patent CN216044561U discloses a fan control box capable of adjusting the air volume. The fan control box includes a box body, an air inlet, a filter, an air outlet, a wind speed adjustment switch, a controller, and a fan. The box body is a hollow box body. An air inlet is arranged on the box cover of the box body. The air inlet is a shutter-type. A filter is arranged on the air inlet. An air outlet is arranged on the side of the box body. The wind speed adjustment switch, the controller, and the fan are all installed in the box body. The wind speed adjustment switch is connected to the input signal of the controller, and the output signal of the controller is connected to the fan.

[0004] However, in the prior art, the existing fan control box can be remotely and automatically controlled, and can be externally connected to a fire control system and an intelligent control system. However, the fan control box is separated from the fan, and an additional independent installation is required. The control over the fan is limited, and the air volume can only be controlled by controlling the fan speed, and the degree of control over ventilation is not high. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that the existing fan control box in the prior art can be remotely and automatically controlled, externally connected to a fire control system and an intelligent control system, but the fan control box is separated from the fan, and an additional independent installation is required, which limits the control over the fan, and the air volume can only be controlled by controlling the fan speed, resulting in a low degree of control over ventilation. A fan control box that can adjust the air volume is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fan control box capable of adjusting the air output, comprising a control box body and a fan blade group, the rear side of the control box body is fixedly connected to a ring shell, one end of the ring shell is fixedly connected to an air output control mechanism, the air output control mechanism comprises a lever, the lower end of the lever is fixedly connected to an inner ring, a plurality of arc grooves are provided inside the inner ring, the outer side of the inner ring is rotatably connected to a limiting ring, one side of the limiting ring is fixedly connected to a clamping ring, a plurality of straight grooves are provided inside the clamping ring, and a moving block is movably clamped on the inner wall of each of the arc grooves and the inner wall of each of the straight grooves.

[0007] Preferably, two sides of a plurality of the moving blocks are slidably engaged with the convex block gaps of the clamping ring, and a servo motor is fixedly connected to the middle of the clamping ring.

[0008] Preferably, the rotating shaft of the servo motor is fixedly connected to the shaft of the fan blade group, and the shaft of the fan blade group is rotatably connected to the middle part of the air outlet control mechanism.

[0009] Preferably, a mounting ring is fixedly connected to the outer side of the limiting ring, and a mounting rod is fixedly connected to the outer side of the mounting ring.

[0010] Preferably, the other end of the mounting rod is rotatably connected to an electric cylinder, and the movable rod of the electric cylinder is fixedly connected to an angle rod.

[0011] Preferably, the other end of the angle rod is rotatably connected to a sliding sleeve, and the inner side of the sliding sleeve is sleeved with the outer surface of the shifting rod.

[0012] Preferably, one side of the mounting ring is fixedly connected to one side of the annular shell, and the other side of the annular shell is fixedly connected to a protective net.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by setting an air outlet control mechanism, the control box body controls the extension of the movable rod of the electric cylinder to push the angle rod, the angle rod rotates in the sliding sleeve and pushes the sliding sleeve to slide on the outer surface of the lever, and the end of the electric cylinder rotates around the mounting rod, thereby the lever is subjected to the tangential force to drive the inner ring to rotate counterclockwise in the middle of the limit ring, each arc groove inside pushes the corresponding movable block rod part to slide in the straight groove, and the block part of the movable block slides in the gap of the clamping ring convex block, and a number of movable blocks gradually cover the upper straight groove, blocking the air passage formed by the arc groove and the straight groove, reducing the air outlet, and the movable rod of the electric cylinder contracts to increase the air outlet, thereby further adjusting the air outlet.

[0015] 2. In the utility model, the control box body and the fan part are connected into a whole, and the integrated installation is more convenient. At the same time, the control box body is connected to the fire control system and the intelligent control system by wire and wireless at the same time, and the control is more stable. The control box body controls the servo motor to start, driving the fan blade group to rotate in the middle of the ring shell, and each arc groove and each straight groove overlap to form a wind passage for ventilation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a fan control box capable of adjusting the air volume;

[0017] Figure 2 The utility model provides a three-dimensional structural schematic diagram of a fan control box capable of adjusting the air volume from a second viewing angle;

[0018] Figure 3 The utility model provides a three-dimensional structural schematic diagram of the interior of a fan control box capable of adjusting the air output;

[0019] Figure 4 The utility model provides a three-dimensional structural schematic diagram of an air outlet control mechanism in a fan control box capable of adjusting the air outlet volume.

[0020] Legend: 1. Control box body; 2. Ring shell; 3. Air outlet control mechanism; 31. Lever; 32. Angle rod; 33. Electric cylinder; 34. Mounting rod; 35. Mounting ring; 36. Inner ring; 37. Arc groove; 38. Limit ring; 39. Retaining ring; 310. Straight groove; 311. Moving block; 312. Servo motor; 313. Sliding sleeve; 4. Protective net; 5. Fan blade assembly. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] like Figure 1-4As shown, the utility model provides a fan control box capable of adjusting the air output, comprising a control box body 1 and a fan blade group 5, a ring shell 2 is fixedly connected to the rear side of the control box body 1, an air output control mechanism 3 is fixedly connected to one end of the ring shell 2, the air output control mechanism 3 comprises a lever 31, an inner ring 36 is fixedly connected to the lower end of the lever 31, a plurality of arc grooves 37 are provided inside the inner ring 36, a limiting ring 38 is rotatably connected to the outer side of the inner ring 36, a snap ring 39 is fixedly connected to one side of the limiting ring 38, a plurality of straight grooves 310 are provided inside the snap ring 39, a moving block 311 is movably connected to the inner wall of each arc groove 37 and the inner wall of each straight groove 310, both sides of the plurality of moving blocks 311 are slidably connected to the gap between the protrusions of the snap ring 39, and a servo motor 312 is fixedly connected to the middle of the snap ring 39.

[0025] The specific settings and functions of this embodiment are described in detail below: by setting the air outlet control mechanism 3, the control box body 1 controls the extension of the movable rod of the electric cylinder 33 to push the angle rod 32, the angle rod 32 rotates in the sliding sleeve 313 and pushes the sliding sleeve 313 to slide on the outer surface of the lever 31, and the end of the electric cylinder 33 rotates around the mounting rod 34, thereby the lever 31 is subjected to the tangential force to drive the inner ring 36 to rotate counterclockwise in the middle of the limit ring 38, each arc groove 37 inside pushes the corresponding movable block 311 rod portion to slide in the straight groove 310, and the block portion of the movable block 311 slides in the gap between the protrusions of the retaining ring 39, and a number of movable blocks 311 gradually cover the upper straight groove 310, blocking the wind passage formed by the arc groove 37 and the straight groove 310, reducing the air outlet, and the movable rod of the electric cylinder 33 contracts to increase the air outlet, thereby further adjusting the air outlet.

[0026] Embodiment 2

[0027] like Figure 1-4 As shown, the rotating shaft of the servo motor 312 is fixedly connected to the shaft of the fan blade group 5, the shaft of the fan blade group 5 is rotatably connected to the middle part of the air outlet control mechanism 3, the outer side of the limit ring 38 is fixedly connected to the mounting ring 35, the outer side of the mounting ring 35 is fixedly connected to the mounting rod 34, the other end of the mounting rod 34 is rotatably connected to the electric cylinder 33, the movable rod of the electric cylinder 33 is fixedly connected to the angle rod 32, the other end of the angle rod 32 is rotatably connected to the sliding sleeve 313, the inner side of the sliding sleeve 313 is sleeved with the outer surface of the lever 31, one side of the mounting ring 35 is fixedly connected to one side of the ring shell 2, and the other side of the ring shell 2 is fixedly connected to the protective net 4.

[0028] The effect achieved by the entire embodiment is that the control box body 1 and the fan part are connected into a whole, and the integrated installation is more convenient. At the same time, the control box body 1 is connected to the fire control system and the intelligent control system by wire and wireless at the same time, and the control is more stable. The control box body 1 controls the servo motor 312 to start, driving the fan blade group 5 to rotate in the middle of the ring shell 2, and each arc groove 37 and each straight groove 310 overlap to form a wind passage for ventilation.

[0029] The use method and working principle of the device: When the fan control box capable of adjusting the air volume is used, the control box body 1 and the fan part are connected into a whole, and the integrated installation is more convenient. At the same time, the control box body 1 is connected to the fire control system and the intelligent control system by wire and wireless at the same time, and the control is more stable. The control box body 1 controls the servo motor 312 to start, driving the fan blade group 5 to rotate in the middle of the ring shell 2, and each arc groove 37 and each straight groove 310 overlap to form a wind passage for ventilation, and the control box body 1 controls the movable rod of the electric cylinder 33 to extend, push the angle rod 32, and the angle rod 32 is in the sliding sleeve 313. The sliding sleeve 313 rotates and pushes the sliding sleeve 313 to slide on the outer surface of the lever 31, and the end of the electric cylinder 33 rotates around the mounting rod 34, so that the lever 31 is subjected to the tangential force to drive the inner ring 36 to rotate counterclockwise in the middle of the limit ring 38, and each arc groove 37 inside pushes the corresponding moving block 311 rod portion to slide in the straight groove 310, and the block portion of the moving block 311 slides in the gap between the protrusions of the retaining ring 39, and a number of moving blocks 311 gradually cover the upper straight groove 310, blocking the wind passage formed by the arc groove 37 and the straight groove 310, reducing the air output, and the movable rod of the electric cylinder 33 contracts to increase the air output, thereby further adjusting the air output.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A fan control box capable of adjusting air output, comprising a control box body (1) and a fan blade group (5), characterized in that: The rear side of the control box body (1) is fixedly connected to a ring shell (2), one end of the ring shell (2) is fixedly connected to an air outlet control mechanism (3), the air outlet control mechanism (3) comprises a lever (31), the lower end of the lever (31) is fixedly connected to an inner ring (36), a plurality of arc grooves (37) are provided inside the inner ring (36), the outer side of the inner ring (36) is rotatably connected to a limit ring (38), one side of the limit ring (38) is fixedly connected to a snap ring (39), a plurality of straight grooves (310) are provided inside the snap ring (39), and a moving block (311) is movably connected to the inner wall of each arc groove (37) and the inner wall of each straight groove (310).

2. A fan control box capable of adjusting air volume according to claim 1, characterized in that: The two sides of the plurality of moving blocks (311) are slidably engaged with the convex block gap of the snap ring (39), and the middle of the snap ring (39) is fixedly connected with a servo motor (312).

3. A fan control box capable of adjusting air volume according to claim 2, characterized in that: The rotating shaft of the servo motor (312) is fixedly connected to the shaft of the fan blade group (5), and the shaft of the fan blade group (5) is rotatably connected to the middle part of the air outlet control mechanism (3).

4. A fan control box capable of adjusting air volume according to claim 3, characterized in that: The outer side of the limiting ring (38) is fixedly connected to a mounting ring (35), and the outer side of the mounting ring (35) is fixedly connected to a mounting rod (34).

5. A fan control box capable of adjusting air volume according to claim 4, characterized in that: The other end of the mounting rod (34) is rotatably connected to an electric cylinder (33), and the movable rod of the electric cylinder (33) is fixedly connected to an angle rod (32).

6. A fan control box capable of adjusting air volume according to claim 5, characterized in that: The other end of the angle rod (32) is rotatably connected to a sliding sleeve (313), and the inner side of the sliding sleeve (313) is sleeved with the outer surface of the shifting rod (31).

7. A fan control box capable of adjusting air volume according to claim 6, characterized in that: One side of the mounting ring (35) is fixedly connected to one side of the annular shell (2), and the other side of the annular shell (2) is fixedly connected to a protective net (4).

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