Ventilation elbow structure capable of conveniently adjusting air volume

Abstract

The utility model discloses a ventilation elbow structure convenient to adjust air volume, which comprises a ventilation elbow main body, both sides of the ventilation elbow main body are provided with slots, the interiors of the slots are rotatably connected with adjusting rods, one end of each adjusting rod is fixedly connected with a threaded rod, and the other end of each adjusting rod is fixedly connected with a limiting clamping plate. And a connecting block is fixedly connected to one side of the clamping plate, two elastic connecting plates are inserted into the connecting block, a mounting groove is formed in the surface of the adjusting rod, and a flow guide plate is inserted into the mounting groove. According to the device, by arranging the adjusting rod and the flow guide plate, air flow can only enter and exit through the flow guide hole of the flow guide plate, so that the air flow at the air outlet can be kept stable and cannot be disordered when the wind power is too large, and the safety of the device is improved; and the device can adjust the air outlet amount at the air outlet of the ventilation elbow, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a ventilation elbow structure that is convenient for adjusting air volume. Background Art

[0002] The ventilation elbow is a must-use component in the ventilation elbow. It is responsible for the connection and turning of the pipeline system. The ventilation duct is commonly used in industrial and civil construction fields to make the air circulate. In the existing equipment, the air volume at the outlet of the ventilation elbow is often difficult to adjust.

[0003] The patent with publication number CN212156210U and titled "A ventilation elbow structure" discloses a ventilation elbow structure, including an air inlet, an air outlet and several intermediate parts that are detachably connected together, one end of the air inlet is connected to a wall or ventilation equipment, and one end of the intermediate part is connected to the air inlet. This patent allows the air inlet, air outlet and intermediate parts to be disassembled and stacked together during transportation. Another patent with publication number CN210531784U and titled "A building composite material combined ventilation duct" discloses a building composite material combined ventilation duct, including a joint, an elbow, and a straight pipe section. The elbow is provided with a curved surface, and the surface layer of the curved surface is coated with an epoxy resin coating. The elbow is welded to two joints to form an integral body. This patent achieves structural stability and leak-proof effect by providing a edging groove to wrap the structure of the non-combustible board. These patented technologies have shortcomings in actual application. Both of them are unable to adjust the air volume at the ventilation elbow outlet. When the wind force is too strong, the wind flow at the outlet is prone to become turbulent, which has an adverse effect on indoor and outdoor air circulation. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a ventilation elbow structure which is convenient for adjusting the air volume.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ventilation elbow structure that is convenient for adjusting the air volume comprises a ventilation elbow main body, slots are provided on both sides of the ventilation elbow main body, an adjusting rod is rotatably connected inside the slot, one end of the adjusting rod is fixedly connected to a threaded rod, the other end of the adjusting rod is fixedly connected to a limiting clamping plate, one side of the limiting clamping plate is fixedly connected to a connecting block, two elastic connecting plates are plugged into the connecting block, an installation groove is provided on the surface of the adjusting rod, and a guide plate is plugged into the inside of the installation groove.

[0007] As a further improvement of the utility model, threaded holes are provided on both sides of the front surface of the guide plate, and mounting bolts matching the threaded holes are threadedly connected on both sides of the surface of the adjustment rod.

[0008] As a further improvement of the present invention, both sides of the front side of the guide plate are fixedly connected with limiting rings, and a plurality of guide holes are evenly opened on the front side of the guide plate.

[0009] As a further improvement of the utility model, a fixing nut is threadedly sleeved on the surface of the threaded rod.

[0010] As a further improvement of the present invention, the upper end and the lower end of the connecting block are provided with a card slot, and the opposite sides of the two elastic connecting plates are fixedly connected with a card block adapted to the card slot.

[0011] As a further improvement of the utility model, a return spring is fixedly connected between the two elastic connecting plates, and one side of the two elastic connecting plates is fixedly connected to the same handle.

[0012] Beneficial effects of the utility model:

[0013] By setting an adjusting rod and a guide plate, when in use, the adjusting rod is inserted into the slot of the ventilation elbow main body, the adjusting rod is limited by the fixing nut, and the guide plate is installed on the adjusting rod using the mounting bolt. After the installation is completed, the adjusting rod is rotated to allow the guide plate to block the air outlet of the ventilation elbow main body, so that the wind can only enter and exit through the guide hole of the guide plate, so that when the wind force is too strong, the wind flow at the air outlet can remain stable and not turbulent, thereby increasing the safety of the device.

[0014] By setting a connecting block and an elastic connecting plate, when in use, the handle is inserted into the connecting block through the elastic connecting plate, and the reset spring allows the clamping block of the elastic connecting plate to complete the clamping connection with the clamping groove of the connecting block, thereby fixing the handle to the adjusting rod, and the fixing nut is turned to loosen the adjusting rod. The angle of the adjusting rod and the guide plate is changed by the handle, so that the device can adjust the air outlet at the air outlet of the ventilation elbow, thereby increasing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a ventilation elbow structure that is convenient for adjusting the air volume proposed by the utility model;

[0016] Figure 2 A schematic diagram of the disassembled structure of a ventilation elbow structure for adjusting the air volume proposed by the utility model;

[0017] Figure 3 A schematic diagram of the structure of a guide plate of a ventilation elbow structure that is convenient for adjusting the air volume proposed by the utility model;

[0018] Figure 4 This is a structural schematic diagram of an elastic connecting plate of a ventilation elbow structure that is convenient for adjusting air volume, which is proposed by the utility model.

[0019] In the figure: 1 ventilation elbow body, 2 slot, 3 adjustment rod, 4 threaded rod, 5 limit clamp, 6 connection block, 7 elastic connection plate, 8 installation slot, 9 guide plate, 10 threaded hole, 11 installation bolt, 12 limit ring, 13 guide hole, 14 fixing nut, 15 slot, 16 block, 17 return spring, 18 handle. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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 of the embodiments.

[0021] Reference Figure 1-Figure 4 A ventilation elbow structure for adjusting air volume comprises a ventilation elbow body 1, slots 2 are provided on both sides of the ventilation elbow body 1, an adjusting rod 3 is rotatably connected inside the slot 2, one end of the adjusting rod 3 is fixedly connected to a threaded rod 4, the other end of the adjusting rod 3 is fixedly connected to a limiting clamping plate 5, one side of the limiting clamping plate 5 is fixedly connected to a connecting block 6, two elastic connecting plates 7 are plugged into the connecting block 6, an installation groove 8 is provided on the surface of the adjusting rod 3, and a guide plate 9 is plugged into the inside of the installation groove 8.

[0022] In the utility model, threaded holes 10 are provided on both sides of the front of the guide plate 9, and mounting bolts 11 adapted to the threaded holes 10 are threadedly connected on both sides of the surface of the adjusting rod 3, and limiting rings 12 are fixedly connected on both sides of the front of the guide plate 9, and a plurality of guide holes 13 are evenly provided on the front of the guide plate 9, and a fixing nut 14 is threadedly sleeved on the surface of the threaded rod 4, and the adjusting rod 3 and the guide plate 9 are fixed by the fixing nut 14;

[0023] A card slot 15 is provided at the upper and lower ends of the connecting block 6, and a card block 16 adapted to the card slot 15 is fixedly connected to the opposite sides of the two elastic connecting plates 7, a return spring 17 is fixedly connected between the two elastic connecting plates 7, and the same handle 18 is fixedly connected to one side of the two elastic connecting plates 7, and the handle 18 is fixed to the adjusting rod 3 through the card block 16 of the elastic connecting plate 7 and the card slot 15 of the connecting block 6.

[0024] When the utility model is used, the adjusting rod 3 is first inserted into the slot 2 of the ventilation elbow body 1 until the limiting card plate 5 fits with the ventilation elbow body 1, and the adjusting rod 3 is limited by the fixing nut 14, and then the guide plate 9 is inserted into the mounting groove 8 in the adjusting rod 3 until the limiting ring 12 fits with the adjusting rod 3, and the guide plate 9 is installed on the adjusting rod 3 using the mounting bolt 11. After the installation is completed, the adjusting rod 3 is rotated to allow the guide plate 9 to block the air outlet of the ventilation elbow body 1, and the fixing nut 14 is rotated to completely fix the adjusting rod 3. The handle 18 is finally inserted into the connecting block 6 through the elastic connecting plate 7. The reset spring 17 allows the clamping block 16 of the elastic connecting plate 7 to be clamped with the clamping groove 15 of the connecting block 6, thereby fixing the handle 18 to the adjusting rod 3. The fixing nut 14 is turned to loosen the adjusting rod 3. The angle of the adjusting rod 3 and the guide plate 9 is changed by the handle 18. After changing to a suitable angle, the fixing nut 14 is turned again to fix it, thereby completing the adjustment of the air volume at the air outlet of the ventilation elbow.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ventilation elbow structure for adjusting air volume, comprising a ventilation elbow body (1), characterized in that: Both sides of the ventilation elbow body (1) are provided with slots (2), the interior of the slots (2) is rotatably connected with an adjusting rod (3), one end of the adjusting rod (3) is fixedly connected with a threaded rod (4), the other end of the adjusting rod (3) is fixedly connected with a limit clamping plate (5), one side of the limit clamping plate (5) is fixedly connected with a connecting block (6), the interior of the connecting block (6) is plugged with two elastic connecting plates (7), the surface of the adjusting rod (3) is provided with a mounting groove (8), the interior of the mounting groove (8) is plugged with a guide plate (9).

2. A ventilation elbow structure for adjusting air volume according to claim 1, characterized in that: Threaded holes (10) are provided on both sides of the front surface of the guide plate (9), and mounting bolts (11) matching the threaded holes (10) are threadedly connected on both sides of the surface of the adjustment rod (3).

3. The ventilation elbow structure for adjusting air volume according to claim 1 is characterized in that: Limiting rings (12) are fixedly connected to both sides of the front side of the guide plate (9), and a plurality of guide holes (13) are evenly arranged on the front side of the guide plate (9).

4. The ventilation elbow structure for adjusting air volume according to claim 1 is characterized in that: A fixing nut (14) is threadedly sleeved on the surface of the threaded rod (4).

5. The ventilation elbow structure for adjusting air volume according to claim 1 is characterized in that: The upper and lower ends of the connection block (6) are both provided with a clamping groove (15), and the opposite sides of the two elastic connection plates (7) are both fixedly connected with a clamping block (16) adapted to the clamping groove (15).

6. The ventilation elbow structure for adjusting air volume according to claim 1, characterized in that: A return spring (17) is fixedly connected between the two elastic connecting plates (7), and a same handle (18) is fixedly connected to one side of the two elastic connecting plates (7).

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