Variable air volume control device

Abstract

The utility model relates to the technical field of variable air volume control, in particular to a variable air volume control device. According to the technical scheme, the device comprises an air inlet pipe, a fixing pipe and an air outlet pipe; a third frame is welded to the side end face of the air outlet pipe; a first frame is welded to the side end face of the air inlet pipe. A fan is mounted in the fixed pipe, and an exhaust pipe is mounted on the side end face of the inner wall of the fixed pipe through a connecting pipe; a guide rod is installed on the front end face of the air inlet pipe, a second driving mechanism is installed on the rear end face of the air inlet pipe, and a lead screw is arranged on an output shaft of the second driving mechanism. The air inlet pipe is sleeved with a baffle. A first driving mechanism is mounted on the baffle through a mounting block, and bristles are arranged on an output shaft of the first driving mechanism through a rotating shaft; a box body is installed on the fixing pipe, and a second discharging pipe is fixedly embedded into the rear end face of the box body. According to the utility model, variable air volume control is met, meshes are cleaned while control is carried out, and dust and sundries are prevented from adhering to internal blades to influence use.

Description

Technical Field

[0001] The utility model relates to the technical field of variable air volume control, in particular to a variable air volume control device. Background Technique

[0002] Variable air volume control is a control method for air conditioning systems, which adjusts and controls the temperature of a certain area by changing the air supply volume instead of the air supply temperature. This system automatically adjusts the air supply volume of the air conditioning system according to the change of indoor load or the change of indoor required parameters, so as to ensure the required indoor temperature.

[0003] Variable air volume control mostly uses an intake pipe to adjust the intake air. However, when the intake air is carried out, filter screens and other mechanisms are mostly installed on the end face of the intake pipe to process the gas. However, after the processing, dust and sundries in the gas are easily attached to the mesh holes and the internal grading blades, affecting the intake air. After long-term use, manual cleaning by personnel is required, so it still needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a variable air volume control device to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a variable air volume control device, including an intake pipe, a fixed pipe and an outlet pipe,

[0006] A frame three is welded on the side end face of the outlet pipe;

[0007] A frame one is welded on the side end face of the intake pipe;

[0008] A fan is installed in the fixed pipe, and an exhaust pipe is installed on the inner wall side end face of the fixed pipe through a connecting pipe;

[0009] A guide rod is installed on the front end face of the intake pipe, and a driving mechanism two is installed on the rear end face of the intake pipe. A lead screw is arranged on the output shaft of the driving mechanism two;

[0010] A baffle is sleeved on the intake pipe;

[0011] A driving mechanism one is installed on the baffle through a mounting block, and a brush is arranged on the output shaft of the driving mechanism one through a rotating shaft;

[0012] A box body is installed on the fixed pipe, and a discharge pipe two is embedded and fixed on the rear end face of the box body.

[0013] Preferably, frame two is welded at both ends of the fixed pipe. Frame two is installed on frame three and frame one through bolts, and fastening nuts are installed on the bolts. The frame two at both ends of the fixed pipe can be connected to frame three and frame one through bolts, and the fastening nuts can be installed for fastening after the connection.

[0014] Preferably, the top and bottom surfaces of the air inlet pipe are both provided with air inlets, and a filter is installed in the air inlet. The filter is installed in the air inlet, so that when the air inlet pipe takes in air through the air inlet, the gas passes through the filter for filtering.

[0015] Preferably, a guide block 1 is welded to the front end face of the baffle, and the guide block is connected to the guide rod in a sleeve manner. The guide block is connected to the guide rod in a sleeve manner, so that the front end face of the baffle can be installed and limited.

[0016] Preferably, a second guide block is welded to the rear end face of the baffle, and the second guide block is installed on the screw rod through a thread. The second guide block is installed on the screw rod through a thread, so that the rear end face of the baffle can be installed and limited.

[0017] Preferably, the end of the second discharge pipe away from the box is embedded and fixed in the connecting pipe, and the connecting pipe is connected to the box gas through the second discharge pipe. By embedding and fixing the end of the second discharge pipe away from the box in the connecting pipe, the pressurized gas in the box can be discharged into the connecting pipe through the second discharge pipe.

[0018] Preferably, a booster pump is installed on the box, and a discharge pipe 1 is provided on the booster pump, and one end of the discharge pipe 1 away from the booster pump is embedded and fixed in the box. The booster pump is installed on the box, so that the booster pump can be turned on to inject pressurized gas into the box through the discharge pipe 1.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model sets an air intake pipe. When personnel need to effectively control the variable air volume, the operator can turn on the fan in the fixed pipe and realize the air intake operation with the help of the air intake port on the air intake pipe. During the air intake process, the gas will first be filtered through the filter. And the guide block 2 is threadedly installed on the screw rod, so as to install and limit the rear end face of the baffle. At the same time, the guide block 1 is tightly sleeved on the guide rod, further providing installation and limit for the front end face of the baffle. In this way, when the drive mechanism 2 drives the screw rod to rotate, the baffle can move flexibly back and forth according to the rotation direction of the screw rod. In this way, the baffle can gradually block the air intake port, so that the air intake volume begins to change, thereby realizing the precise adjustment of the air intake volume to meet the needs of variable air volume adjustment. In addition, during the adjustment process, the personnel can also start the drive mechanism 1 to drive the bristles to rotate through the rotating shaft. As the baffle moves, the bristles can simultaneously clean the mesh of the filter to avoid mesh blockage and ensure smooth air intake.

[0021] 2. In the present utility model, by providing a fixed pipe, when personnel start to adjust the variable air volume, after the blades of the internal fan have been used for a long time, various dust and debris often adhere to them. To avoid the inconvenience that may occur when personnel reach in to clean the fan blades, a booster pump is specially installed on the box body. Once the booster pump starts to operate, it injects pressurized gas into the box body through the discharge pipe one. After injecting the gas, the end of the discharge pipe two away from the box body will be tightly inserted and fixed into the connecting pipe. In this way, the pressurized gas in the box body can smoothly enter the connecting pipe through the discharge pipe two. Then, the pressurized gas will be discharged through the exhaust pipe, thereby comprehensively cleaning the fan blades with high-pressure gas and effectively preventing the adhesion of dust and debris from having an adverse impact on the air volume control. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the front view structural schematic diagram of the present utility model;

[0023] Figure 2 is the top view structural schematic diagram of the present utility model;

[0024] Figure 3 is the rear view structural schematic diagram of the present utility model;

[0025] Figure 4 is the side view structural schematic diagram of the present utility model;

[0026] Figure 5 is the internal structural schematic diagram of the fixed pipe of the present utility model.

[0027] In the figure: 1. First guiding block; 2. Baffle; 3. Guide rod; 4. Intake pipe; 5. First frame; 6. Box body; 7. First discharge pipe; 8. Fixed pipe; 9. Second frame; 10. Third frame; 11. Outlet pipe; 12. Bolt; 13. Second discharge pipe; 14. Booster pump; 15. Filter screen; 16. First driving mechanism; 17. Mounting block; 18. Brush hair; 19. Rotating shaft; 20. Intake port; 21. Lead screw; 22. Second guiding block; 23. Second driving mechanism; 24. Fan; 25. Connecting pipe; 26. Exhaust pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] As shown Figures 1 - 5 A variable air volume control device proposed by the present utility model includes an intake pipe 4, a fixed pipe 8, and an exhaust pipe 11.

[0031] A frame three 10 is welded to the side end face of the exhaust pipe 11;

[0032] A frame one 5 is welded to the side end face of the intake pipe 4;

[0033] A fan 24 is installed inside the fixed pipe 8, and an exhaust pipe 26 is installed on the inner wall side end face of the fixed pipe 8 through a connecting pipe 25;

[0034] A guide rod 3 is installed on the front end face of the intake pipe 4, and a driving mechanism two 23 is installed on the rear end face of the intake pipe 4. A lead screw 21 is provided on the output shaft of the driving mechanism two 23;

[0035] A baffle 2 is sleeved on the intake pipe 4;

[0036] A driving mechanism one 16 is installed on the baffle 2 through a mounting block 17, and a brush 18 is provided on the output shaft of the driving mechanism one 16 through a rotating shaft 19;

[0037] A box body 6 is installed on the fixed pipe 8, and a discharge pipe two 13 is embedded and fixed on the rear end face of the box body 6.

[0038] And as is well known to those skilled in the art, the provision of the driving mechanism one 16 and the driving mechanism two 23 is common, and they both belong to conventional means or common general knowledge, so no further elaboration will be given here. Those skilled in the art can make any selection according to their needs or convenience. The driving mechanism one 16 and the driving mechanism two 23 drive the rotating shaft 19 and the lead screw 21 to rotate.

[0039] Intake ports 20 are provided on both the top end face and the bottom end face of the intake pipe 4, and a filter screen 15 is installed inside the intake ports 20. By installing the filter screen 15 inside the intake ports 20, when the intake pipe 4 intakes air through the intake ports 20, the gas is filtered through the filter screen 15.

[0040] A guide block one 1 is welded to the front end face of the baffle 2, and the guide block one 1 is sleeved on the guide rod 3. By sleeving the guide block one 1 on the guide rod 3, the front end face of the baffle 2 can be installed and limited.

[0041] A guide block two 22 is welded to the rear end face of the baffle 2, and the guide block two 22 is threadedly installed on the lead screw 21. By threadedly installing the guide block two 22 on the lead screw 21, the rear end face of the baffle 2 can be installed and limited.

[0042] Based on Embodiment 1: When a person controls the variable air volume, the person can turn on the fan 24 in the fixed pipe 8 to intake air through the air inlet 20 on the intake pipe 4. When intaking air, the gas can be filtered through the filter screen 15, and when intaking air, the second guiding block 22 is threadedly installed on the lead screw 21, so that the rear end face of the baffle 2 can be installed and limited. And the first guiding block 1 is sleeved on the guiding rod 3, so that the front end face of the baffle 2 can be installed and limited. When the second driving mechanism 23 drives the lead screw 21 to rotate, the baffle 2 can be driven to move back and forth according to the rotation direction of the lead screw 21, so that the baffle 2 can gradually block the air inlet 20, and then the air intake volume can be adjusted by the blocking amount, so as to meet the variable air volume adjustment. And when adjusting, the person can turn on the first driving mechanism 16 to drive the brush bristles 18 to rotate through the rotating shaft 19, so that the brush bristles 18 can clean the mesh holes of the filter screen 15 as the baffle 2 moves.

[0043] Embodiment Two

[0044] As Figures 1 - 5 shown, a variable air volume control device proposed by the present utility model, compared with Embodiment 1, this embodiment further includes: an intake pipe 4, a fixed pipe 8 and an outlet pipe 11.

[0045] A frame three 10 is welded to the side end face of the outlet pipe 11;

[0046] A frame one 5 is welded to the side end face of the intake pipe 4;

[0047] A fan 24 is installed in the fixed pipe 8, and an exhaust pipe 26 is installed on the inner wall side end face of the fixed pipe 8 through a connecting pipe 25;

[0048] A guiding rod 3 is installed on the front end face of the intake pipe 4, and a second driving mechanism 23 is installed on the rear end face of the intake pipe 4. A lead screw 21 is arranged on the output shaft of the second driving mechanism 23;

[0049] A baffle 2 is sleeved on the intake pipe 4;

[0050] A first driving mechanism 16 is installed on the baffle 2 through a mounting block 17, and brush bristles 18 are arranged on the output shaft of the first driving mechanism 16 through a rotating shaft 19;

[0051] A box body 6 is installed on the fixed pipe 8, and a second discharge pipe 13 is embedded and fixed on the rear end face of the box body 6.

[0052] Frames two 9 are welded to both ends of the fixed pipe 8. The frames two 9 are installed on the frame three 10 and the frame one 5 through bolts 12, and fastening nuts are installed on the bolts 12. The frames two 9 at both ends of the fixed pipe 8 can be connected to the frame three 10 and the frame one 5 through the bolts 12, and the fastening nuts can be installed for fastening after connection.

[0053] One end of the second discharge pipe 13 away from the box body 6 is embedded and fixed in the connecting pipe 25, and the connecting pipe 25 is in gas communication with the box body 6 through the second discharge pipe 13. By embedding and fixing one end of the second discharge pipe 13 away from the box body 6 in the connecting pipe 25, the pressurized gas in the box body 6 can be discharged into the connecting pipe 25 through the second discharge pipe 13.

[0054] A booster pump 14 is installed on the box body 6. A first discharge pipe 7 is provided on the booster pump 14, and one end of the first discharge pipe 7 away from the booster pump 14 is embedded and fixed in the box body 6. By installing the booster pump 14 on the box body 6, after the booster pump 14 is turned on, pressurized gas is injected into the box body 6 through the first discharge pipe 7.

[0055] Based on Embodiment 2: By providing the fixed pipe 8, when personnel control the variable air volume, dust and sundries will adhere to the blades of the internal fan 24 after long-term use. To avoid the inconvenience caused by personnel reaching in to clean the blades of the fan 24, by installing the booster pump 14 on the box body 6, after the booster pump 14 is turned on, pressurized gas is injected into the box body 6 through the first discharge pipe 7. After injecting the gas, one end of the second discharge pipe 13 away from the box body 6 is embedded and fixed in the connecting pipe 25, so that the pressurized gas in the box body 6 can be discharged into the connecting pipe 25 through the second discharge pipe 13, and the pressurized gas is discharged through the exhaust pipe 26, so that the high-pressure gas cleans the blades of the fan 24, avoiding the influence of dust and sundries adhesion on the air volume control.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A variable air volume control device, comprising an air inlet pipe (4), a fixed pipe (8) and an air outlet pipe (11), characterized in that: The side end surface of the air outlet pipe (11) is welded with a frame three (10); A frame 1 (5) is welded to the side end surface of the air intake pipe (4); A fan (24) is installed in the fixed pipe (8), and an exhaust pipe (26) is installed on the inner wall side end surface of the fixed pipe (8) via a connecting pipe (25); A guide rod (3) is installed on the front end surface of the air intake pipe (4), and a second drive mechanism (23) is installed on the rear end surface of the air intake pipe (4), and a screw rod (21) is arranged on the output shaft of the second drive mechanism (23); The air inlet pipe (4) is sleeved with a baffle (2); A driving mechanism (16) is mounted on the baffle (2) via a mounting block (17), and bristles (18) are arranged on the output shaft of the driving mechanism (16) via a rotating shaft (19); A box body (6) is mounted on the fixed pipe (8), and a second discharge pipe (13) is embedded and fixed on the rear end surface of the box body (6).

2. A variable air volume control device according to claim 1, characterized in that: Frame 2 (9) is welded to both ends of the fixed pipe (8), and frame 2 (9) is mounted on frame 3 (10) and frame 1 (5) via bolts (12), and fastening nuts are mounted on the bolts (12).

3. A variable air volume control device according to claim 1, characterized in that: The top end surface and the bottom end surface of the air inlet pipe (4) are both provided with an air inlet (20), and a filter screen (15) is installed in the air inlet (20).

4. A variable air volume control device according to claim 1, characterized in that: A guide block 1 (1) is welded to the front end surface of the baffle (2), and the guide block 1 (1) is sleeved on the guide rod (3).

5. A variable air volume control device according to claim 4, characterized in that: A second guide block (22) is welded to the rear end surface of the baffle (2), and the second guide block (22) is mounted on the screw rod (21) via threads.

6. A variable air volume control device according to claim 1, characterized in that: One end of the second discharge pipe (13) facing away from the box body (6) is embedded and fixed in the connecting pipe (25), and the connecting pipe (25) is in gas communication with the box body (6) through the second discharge pipe (13).

7. A variable air volume control device according to claim 1, characterized in that: A booster pump (14) is installed on the box body (6), a discharge pipe (7) is provided on the booster pump (14), and an end of the discharge pipe (7) facing away from the booster pump (14) is embedded and fixed in the box body (6).

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