Adjusting structure of ventilating duct

Abstract

The utility model relates to the technical field of ventilating ducts, in particular to an adjusting structure of a ventilating duct, which comprises a mounting frame. Shaft pieces are movably arranged on the outer side of the mounting frame at equal intervals, one end of a connecting piece is fixed to the end of each shaft piece, the other end of each connecting piece is movably connected with a driving piece, and the driving pieces are located in outer side recesses of the mounting frame and connected with an external driving structure. The inner end of the shaft piece penetrates through the mounting frame to be connected with a fixing piece, and adjusting blades are fixed to branches of the fixing piece; a support is fixed to the front face of the installation frame, and a separation net is arranged on the front face of the support in a buckled mode. The wind blocking structure in the ventilation pipeline is formed by the rotatable adjusting blades, the flowing area of the ventilation pipeline is changed along with the change of the angles of the adjusting blades, and the ventilation efficiency is adjusted; the structure is simple, the operation is convenient, and the practical value is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to an adjustment structure of a ventilation duct. Background Art

[0002] Ventilation ducts are metal or non-metal pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are a kind of municipal infrastructure designed to allow air circulation and reduce the concentration of harmful gases.

[0003] The existing open patent (publication number CN 209856397 U) discloses an adjustable door for ventilation ducts, which relates to the technical field of duct air volume adjustment, and includes a frame and a door leaf, wherein the door leaf is provided with a rotating shaft on both opposite sides, and the two rotating shafts are correspondingly passed through the frame and rotated with the frame, and a fixing frame is fixedly provided on the outer side of the frame on one side of any rotating shaft, and a connecting assembly for detachably fixing the rotating shaft and the fixing frame is also provided on the frame. The utility model has the advantages of realizing the fixing operation of the door leaf after adjustment, reducing the occurrence of the door leaf being driven by the airflow, and helping to ensure the normal ventilation operation of the ventilation duct.

[0004] Although the above-mentioned adjustable door can achieve the adjustment effect, in actual use, its control and driving structure is installed on the side of the frame, and the frame is basically inside the ventilation duct, which makes it inconvenient to operate and adjust. At the same time, the linkage structure of the door leaf in the adjustable door is relatively complicated, resulting in a high damage rate during long-term use, reducing its practicality. To this end, the utility model proposes an adjustment structure of the ventilation duct to achieve improvement on the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide an adjusting structure for a ventilation duct, so as to solve the problems of the existing adjusting structure for ventilation ducts proposed in the above background technology, such as inconvenient operation, poor stability and low practicality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustment structure for a ventilation duct, comprising a mounting frame; shaft members are equidistantly and movably arranged on the outside of the mounting frame, one end of a connecting member is fixed to the end of the shaft member, and the other end of the connecting member is movably connected to a driving member, the driving member is located in a recess on the outside of the mounting frame, and the driving member is connected to an external driving structure, the inner end of the shaft member passes through the mounting frame and is connected to a fixing member, and the branch of the fixing member is fixed with an adjustment blade.

[0007] Preferably, a baffle is connected to the inner side of the end of the installation frame, and the installation frame and the baffle form a rectangular frame structure.

[0008] Preferably, the fixing member is arranged in a groove inside the installation frame, and the edge of the adjusting blade is in contact with the inner side of the installation frame.

[0009] Preferably, the regulating blades are hollow raised structures, and edges of adjacent regulating blades fit together.

[0010] Preferably, a limiting strip is provided in the middle of the inner recess of the baffle, and the limiting strip is in contact with the edge of the regulating blade located at the side.

[0011] Preferably, the installation frame is fixed in the ventilation duct, and the isolation net is located on the air inlet surface of the ventilation duct.

[0012] Preferably, the driving member is a long strip structure, and the driving member is arranged parallel to the edge of the installation frame.

[0013] Preferably, a bracket is fixed to the front side of the installation frame, and an isolation net is buckled and arranged on the front side of the bracket.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a plurality of rotatable adjusting blades to form a wind shield structure in a ventilation duct. As the angles of the adjusting blades change, the flow area of ​​the ventilation duct changes accordingly, which is used to adjust the ventilation efficiency. The utility model has a simple structure, convenient operation, and great practical value.

[0016] Specifically, the driving member needs to be connected to an external driving structure, which can be electrically controlled or manually controlled. It only needs to control the driving member to move along the edge of the mounting frame. The driving member drives the rotation of several shaft members through the connecting member, and the fixing member at the inner end of the shaft member drives the adjusting blade to rotate accordingly. The adjusting blades in the initial state fit each other, completely blocking the vents of the rectangular frame. As the adjusting blades continue to rotate, the ventilation area increases accordingly. When the middle section of the adjusting blade is parallel to the baffle, the maximum ventilation volume is reached. The bracket fixed on the front side of the mounting frame separates the isolation net from the adjusting blade to avoid interference with the movement of the adjusting blade, and the isolation net can isolate and remove some impurities in the gas, reducing the impact on the operation of the adjusting blade, and the buckled and installed isolation net is convenient for subsequent regular cleaning and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the regulating blade of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation frame and baffle in the utility model;

[0020] Figure 4It is a schematic diagram of the regulating blade structure in the utility model.

[0021] In the figure: 1. installation frame; 2. baffle; 3. bracket; 4. isolation net; 5. adjustment blade; 6. shaft; 7. connecting part; 8. driving part; 9. limit strip; 10. fixing part. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] See also Figure 1-4 , as shown in the figure: This embodiment is a preferred implementation of the technical solution, an adjustment structure of a ventilation duct, comprising a mounting frame 1; shaft members 6 are equidistantly and movably arranged on the outside of the mounting frame 1, one end of a connecting member 7 is fixed to the end of the shaft member 6, and a driving member 8 is movably connected to the other end of the connecting member 7, the driving member 8 is located in the outer recess of the mounting frame 1, and the driving member 8 is connected to the external driving structure, the inner end of the shaft member 6 passes through the mounting frame 1 and is connected to a fixing member 10, and an adjusting blade 5 is fixed to the branch of the fixing member 10; a bracket 3 is fixed to the front of the mounting frame 1, and an isolation net 4 is buckled and arranged on the front of the bracket 3; the mounting frame 1 is fixed in the ventilation duct, and the isolation net 4 is located on the air inlet side of the ventilation duct;

[0025] It should be noted that the adjustment structure of the ventilation duct involved in the present application is mainly used for adjusting the ventilation area of ​​the ventilation duct. A plurality of rotatable adjustment blades 5 are provided to form a windshield structure in the ventilation duct. As the angles of the adjustment blades 5 change, the flow area of ​​the ventilation duct changes accordingly, which is used to adjust the ventilation efficiency. The structure is simple, the operation is convenient, and the practical value is large. When it is used specifically, the driving member 8 needs to be connected to the external driving structure. Electric control or manual control can be adopted. It only needs to control the driving member 8 to move along the edge direction of the mounting frame 1. The driving member 8 drives the plurality of shaft members through the connecting member 7. 6 rotates, and the fixing member 10 at the inner end of the shaft member 6 drives the adjusting blade 5 to rotate accordingly. The adjusting blades 5 in the initial state fit each other to completely cover the vent of the rectangular frame. As the adjusting blade 5 rotates continuously, the ventilation area increases accordingly. When the middle section of the adjusting blade 5 is in a parallel state with the baffle 2, the maximum ventilation volume is reached. The bracket 3 fixed on the front side of the mounting frame 1 separates the isolation net 4 from the adjusting blade 5 to avoid interference with the movement of the adjusting blade 5, and the isolation net 4 can isolate and remove some impurities in the gas to reduce the impact on the operation of the adjusting blade 5, and the buckled and installed isolation net 4 is convenient for subsequent regular cleaning and replacement.

[0026] Among them Figure 1 and Figure 2 As shown, a baffle 2 is connected to the inner side of the end of the installation frame 1, and the installation frame 1 and the baffle 2 form a rectangular frame structure; a limit strip 9 is provided in the middle of the inner recess of the baffle 2, and the limit strip 9 is in contact with the edge of the regulating blade 5 located at the edge;

[0027] It should be noted that the baffle 2 serves as a connecting structure, which is used for the installation and fixation of two parallel mounting frames 1. The rectangular frame structure composed of the baffle 2 and the mounting frame 1 is fixed in the ventilation duct as the main structure of the ventilation duct adjustment structure. The limit strip 9 fixed in the middle of the recessed position on the inner side of the baffle 2 is used to block the position of the adjusting blade 5 to avoid angle deviation when adjusting the adjusting blade 5, which causes the adjusting blade 5 to fail to close completely and accurately.

[0028] Among them Figure 3 and Figure 4 As shown, the fixing member 10 is arranged in the groove inside the installation frame 1, and the edge of the adjusting blade 5 is in contact with the inner side of the installation frame 1; the adjusting blade 5 is a hollow protruding structure, and the edges of adjacent adjusting blades 5 are in contact with each other; the driving member 8 is a long strip structure, and the driving member 8 is arranged parallel to the edge of the installation frame 1;

[0029] It should be noted that: the fixing member 10 is used for the installation and fixation of the adjusting blade 5 and the transmission of the driving force. When the adjusting blade 5 is in the closed state, the cross-section of the rectangular frame composed of the mounting frame 1 and the baffle 2 needs to be blocked. Therefore, it is necessary to open a groove on the inner side of the mounting frame 1 and the baffle 2 for the installation of the fixing member 10, thereby ensuring that the edge of the adjusting blade 5 can be completely fitted with the inner side of the mounting frame 1. At the same time, when the adjusting blade 5 rotates, the baffle 2 will not interfere with its movement. The hollow structure of the adjusting blade 5 can reduce the load and manufacturing cost, and its multi-slant setting makes it possible to have fewer attachments on its surface during long-term use, and at the same time can change the wind direction during ventilation.

[0030] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A ventilation duct adjustment structure, comprising a mounting frame (1); characterized in that: A shaft member (6) is movably arranged at equal intervals on the outside of the installation frame (1); one end of a connecting member (7) is fixed to the end of the shaft member (6); the other end of the connecting member (7) is movably connected to a driving member (8); the driving member (8) is located in a recess on the outside of the installation frame (1), and the driving member (8) is connected to an external driving structure; the inner end of the shaft member (6) passes through the installation frame (1) and is connected to a fixing member (10); and an adjusting blade (5) is fixed to a branch of the fixing member (10).

2. The ventilation duct adjustment structure according to claim 1, characterized in that: A baffle plate (2) is connected to the inner side of the end of the installation frame (1), and the installation frame (1) and the baffle plate (2) form a rectangular frame structure.

3. The ventilation duct adjustment structure according to claim 1, characterized in that: The fixing member (10) is arranged in a groove inside the installation frame (1), and the edge of the regulating blade (5) is in contact with the inner side of the installation frame (1).

4. The ventilation duct adjustment structure according to claim 1, characterized in that: The regulating blades (5) are hollow protruding structures, and the edges of adjacent regulating blades (5) fit together.

5. The ventilation duct adjustment structure according to claim 2, characterized in that: A limiting strip (9) is provided in the middle of the inner recess of the baffle (2), and the limiting strip (9) is in contact with the edge of the regulating blade (5) located at the side.

6. The ventilation duct adjustment structure according to claim 1, characterized in that: The installation frame (1) is fixed in the ventilation duct, and the isolation net (4) is located on the air inlet surface of the ventilation duct.

7. The ventilation duct adjustment structure according to claim 1, characterized in that: The driving member (8) is a long strip structure, and the driving member (8) is arranged parallel to the edge of the installation frame (1).

8. The ventilation duct adjustment structure according to claim 1, characterized in that: A bracket (3) is fixed on the front of the installation frame (1), and an isolation net (4) is buckled and arranged on the front of the bracket (3).

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