Air valve with air volume adjusting function

Abstract

The utility model discloses an air valve with an air volume adjusting function, which relates to the technical field of air valves and comprises a shell, a valve plate is rotatably mounted in the middle of the shell, sealing edges are mounted on two side walls in the shell respectively, and the two sealing edges move on two sides of the valve plate. When the motor is disassembled or assembled, the rotating handle can be rotated to drive the rotating drum to drive the sliding block to rotate, so that the sliding block relieves limitation on the guide rod, then the push plate can be pulled to drive the toothed bar to be pulled out, the sealing plate is disassembled, and then the support and the motor can be taken out from the shell. Use is convenient, and practicability is high; through the stop lever, the stop block, the third spring and the extrusion block, the rotating handle can be limited and fixed, so that the sealing plate can be disassembled or assembled conveniently; in addition, the air speed can be changed by changing the rotating speed of the motor, and then the air volume is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of air valve technology, specifically an air valve with the function of regulating air volume. Background Technology

[0002] Air dampers are indispensable central air conditioning terminal accessories in ventilation, air conditioning, and air purification projects in industrial plants and civil buildings. Air dampers are typically installed in the ducts of air conditioning and ventilation systems to regulate the airflow in branch pipes and can also be used for mixing and regulating fresh and return air. The main function of air dampers is to control airflow, ensuring the normal operation of the system and regulating air quality. There are various types of air dampers, and their working principles and application scenarios are as follows: Air dampers control airflow by adjusting the angle or position of the blades. Manual regulating valves adjust airflow through manual operation, while electric regulating valves are automatically controlled by electric actuators. Smoke and fire dampers and smoke exhaust fire dampers automatically close in the event of a fire to prevent smoke spread. These air dampers are widely used in HVAC systems in industrial and mining enterprises and civil buildings to achieve precise regulation and control of airflow.

[0003] Currently, in order to increase airflow, electrically regulated dampers typically have motor-driven fan blades installed in the damper's duct to increase air velocity and flow. The motor driving the fan blades is usually fixed inside the damper's duct using mounting brackets and bolts. However, if the motor malfunctions and needs to be disassembled for repair, the damper's duct must be disassembled first, followed by the motor. This process is inconvenient and slow, and the motor is also difficult to assemble, resulting in low efficiency, inconvenience, and relatively poor practicality. Utility Model Content

[0004] The purpose of this invention is to provide a wind valve with air volume adjustment function to solve the problems mentioned in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind valve with air volume adjustment function, comprising a housing, a valve plate rotatably mounted in the middle of the housing, sealing edges respectively installed on the inner two side walls of the housing, and the two sealing edges located on both sides of the valve plate, a driving mechanism for driving the valve plate to rotate is provided on the top of the housing, a motor is connected to one side of the housing via a bracket, and a fan blade is connected to the output end of the motor, a through groove is provided on one side of the housing, and a sealing plate is provided in the through groove, and one end of the sealing plate is connected to one end of the bracket, the sealing plate is connected to the housing via a connecting mechanism, and a fixing component is provided in the connecting mechanism, the connecting mechanism including a fixing seat, and the fixing seats are symmetrically arranged on the upper and lower walls of the housing, a toothed rod symmetrically provided on one side of the fixing seat penetrating the fixing seat, and one end of the toothed rod penetrating the sealing plate and the other end connected to a push plate.

[0006] Furthermore, the connecting mechanism also includes a rotating shaft, which is rotatably mounted in a fixed base. A first gear, meshing with a rack, is symmetrically fitted on the outer wall of the rotating shaft. A second gear is fitted on the outer wall of the middle portion of the rotating shaft. A baffle is provided above the second gear, and a locking block meshing with the second gear is connected to the bottom of the baffle. A guide rod is connected to the top of the baffle, and a spring is fitted on the outer side of the guide rod. The upper end of the guide rod is connected to a fixing component located on the top of the fixed base. This connecting mechanism allows for convenient and quick disassembly and installation of the motor from the housing, making it easy to use and more practical.

[0007] Furthermore, the fixing component includes a fixing cylinder, which is fixedly installed on the top of the fixing base and sleeved on the outer side of the upper end of the guide rod. A rotating cylinder is movably sleeved on the outer side of the guide rod inside the fixing cylinder. A rotating ring and a torsion spring are respectively sleeved on the upper and lower sides of the outer wall of the rotating cylinder, and the rotating ring and the torsion spring are located inside the fixing cylinder. The two ends of the torsion spring are fixedly connected to the rotating ring and the fixing cylinder respectively. A slider is symmetrically provided on the inner wall of the rotating cylinder. A limiting groove adapted to the slider is symmetrically opened on the outer wall of the guide rod, and the limiting groove is L-shaped. A rotating handle is sleeved on the upper end of the rotating cylinder above the fixing cylinder. The fixing component can limit and fix the guide rod, thereby realizing the fixing of the sealing plate.

[0008] Furthermore, a stop bar is provided on one side of the top of the handle, and a stop block is connected to the upper end of the stop bar. A spring is sleeved on the outside of the stop bar between the stop block and the handle. A squeezing block adapted to the stop bar is provided on one side of the outer wall of the fixed cylinder, so that the handle can be limited by the stop bar and the squeezing block when the motor is disassembled.

[0009] Furthermore, a sleeve is symmetrically provided on one side of the push plate, and the sleeve is fitted on the outside of the toothed rod. A spring is fitted inside the sleeve on the outside of the toothed rod. The bracket is cross-shaped. The inner wall of the outer shell is symmetrically provided with sliding grooves that are adapted to the bracket. The inner wall of the outer shell and the sealing plate and the side wall of the sealing plate are provided with slots that are adapted to the bracket, so as to limit and fix the bracket during installation.

[0010] Furthermore, the lower end of the stop bar is hemispherical, the top surface of the extrusion block near the stop bar is inclined, and the extrusion block and the stop bar are arranged vertically so that the inclined surface can extrude the stop bar upward.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the use of a connecting mechanism and a fixing component, allows for convenient and quick disassembly or installation of the motor for inspection and maintenance. During disassembly and maintenance, the rotating handle can be rotated to drive the rotating drum to rotate the slider, thereby releasing the restriction on the guide rod. Then, the push plate can be pulled out to drive the gear rod and pull it out, completing the disassembly of the sealing plate. After that, the bracket and motor can be taken out of the housing. It is convenient to use and highly practical.

[0013] 2. This utility model uses a stop bar, a stop block, a spring, and a squeezing block to limit and fix the rotating handle, so as to facilitate the disassembly or installation of the sealing plate; in addition, the wind speed can be changed by changing the speed of the motor, thereby realizing the adjustment of the air volume. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure between the valve plate, the sealing edge, and the outer shell of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure between the fixed base and the push plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure between the guide rod and the fixed cylinder of this utility model.

[0018] The following are the labeling elements in the diagram: 1. Outer shell; 2. Valve plate; 3. Sealing edge; 4. Drive mechanism; 5. Motor; 6. Bracket; 7. Sealing plate; 8. Fixed seat; 9. Gear rack; 10. Push plate; 11. Sleeve; 12. Rotating shaft; 13. Gear 1; 14. Gear 2; 15. Baffle; 16. Locking block; 17. Guide rod; 18. Spring 1; 19. Spring 2; 20. Fixed cylinder; 21. Rotating cylinder; 22. Rotating ring; 23. Torsion spring; 24. Slider; 25. Limiting groove; 26. Stop rod; 27. Stop block; 28. Spring 3; 29. ​​Extrusion block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figure 1 - Figure 4As shown, this utility model provides a technical solution: a wind valve with air volume adjustment function, including a housing 1, a valve plate 2 rotatably mounted in the middle of the housing 1, sealing edges 3 respectively installed on the inner two side walls of the housing 1, and the two sealing edges 3 are displaced to the sides of the valve plate 2, and a driving mechanism 4 for driving the valve plate 2 to rotate is provided on the top of the housing 1. In this example, the driving mechanism 4 is composed of a drive motor and a reducer, so as to drive the valve stem to drive the valve plate 2 to rotate; a motor 5 is connected to one side of the housing 1 through a bracket 6, and the output end of the motor 5 is connected to a fan blade; a through groove is opened on one side of the housing 1, and a sealing plate 7 is provided in the through groove, and one end of the sealing plate 7 is connected to one end of the bracket 6; the sealing plate 7 is connected to the housing 1 through a connecting mechanism, and a fixing component is provided in the connecting mechanism. The connecting mechanism includes a fixing seat 8, and the fixing seat 8 is symmetrically arranged on the upper and lower walls of the housing 1. A toothed rod 9 is symmetrically provided on one side of the fixing seat 8, and one end of the toothed rod 9 passes through the sealing plate 7 and the other end is connected to a push plate 10. In this example, the connecting mechanism also includes a rotating shaft 12, which is rotatably mounted in the fixed base 8. Gear 13, which meshes with the rack 9, is symmetrically sleeved on the outer wall of the rotating shaft 12. Gear 2 14 is sleeved on the outer wall of the middle part of the rotating shaft 12. A baffle 15 is provided above the gear 2 14, and a locking block 16 that meshes with the gear 2 14 is connected to the bottom of the baffle 15. A guide rod 17 is connected to the top of the baffle 15. A spring 18 is sleeved on the outer side of the guide rod 17. The upper end of the guide rod 17 is connected to the fixing component located on the top of the fixed base 8. The connection mechanism allows for convenient and quick disassembly and removal or installation of the motor 5 from the housing 1, making it easy to use and more practical. In this example, the fixing component includes a fixing cylinder 20, which is fixedly installed on the top of the fixing base 8. The fixing cylinder 20 is sleeved on the outer side of the upper end of the guide rod 17. A rotating cylinder 21 is movably sleeved on the outer side of the guide rod 17 and the inner side of the fixing cylinder 20. A rotating ring 22 and a torsion spring 23 are respectively sleeved on the outer wall of the rotating cylinder 21, and the rotating ring 22 and the torsion spring 23 are located inside the fixing cylinder 20. The two ends of the torsion spring 23 are fixedly connected to the rotating ring 22 and the fixing cylinder 20, respectively. A slider 24 is symmetrically provided on the inner wall of the rotating cylinder 21. A limiting groove 25 adapted to the slider 24 is symmetrically opened on the outer wall of the guide rod 17. The limiting groove 25 is L-shaped. A rotating handle is sleeved on the upper end of the rotating cylinder 21 above the fixing cylinder 20. The fixing component can limit and fix the guide rod 17, thereby fixing the sealing plate 7. In this example, a sleeve 11 is symmetrically provided on one side of the push plate 10, and the sleeve 11 is sleeved on the outside of the toothed rod 9. A spring 2 19 is sleeved on the outside of the toothed rod 9 inside the sleeve 11. The bracket 6 is cross-shaped. The inner wall of the outer shell 1 is symmetrically provided with sliding grooves that are adapted to the bracket 6. The inner wall of the outer shell 1 and the sealing plate 7 and the side wall of the sealing plate 7 are provided with slots that are adapted to the bracket 6, so as to limit and fix the bracket 6 during installation.

[0021] In this example, a stop bar 26 is provided on one side of the top of the handle, penetrating the handle, and a stop block 27 is connected to the upper end of the stop bar 26. A spring 28 is sleeved on the outside of the stop bar 26 between the stop block 27 and the handle. A squeezing block 29 adapted to the stop bar 26 is provided on one side of the outer wall of the fixed cylinder 20, so that the handle can be limited by the stop bar 26 and the squeezing block 29 when the motor 5 is disassembled. In this example, the lower end of the stop bar 26 is hemispherical, and the top surface of the squeezing block 29 near the stop bar 26 is inclined. The squeezing block 29 and the stop bar 26 are arranged vertically so that the inclined surface squeezes the stop bar 26 upward.

[0022] The working principle of this utility model is as follows: During use, the drive mechanism 4 drives the valve plate 2 to rotate, opening it. By changing the opening angle, the airflow can be controlled. Simultaneously, the motor 5 drives the fan blades to rotate, increasing the wind speed. In this example, the motor 5 is a servo motor, allowing adjustment of its own speed as needed, thereby changing the fan blade speed and thus the wind speed, indirectly increasing the airflow per unit time. The airflow of the damper is changed according to the fan blade speed. Alternatively, the fan blade speed can be changed by using the drive motor in conjunction with a gear transmission structure, such as a gearbox. However, if a gearbox is used to adjust the speed, it needs to be installed outside the damper to avoid occupying the passage space inside the damper duct. When disassembly and maintenance of the motor 5 are required... When the handle is rotated, the rotating drum 21 is rotated, causing the rotating drum 21 to drive the slider 24 to slide 90 degrees within the limiting groove 25, thus releasing the limiting of the guide rod 17. At the same time, the rotating handle rotates, causing the stop rod 26 to move synchronously. Under the action of the inclined surface on the extrusion block 29, the lower end of the stop rod 26 pushes the stop block 27 upward and stretches the spring 3 28. When the slider 24 moves to the position corresponding to the vertical part of the limiting groove 25, the stop rod 26 moves to the right side of the extrusion block 29, thus limiting and fixing the rotating handle. At the same time, the rotating drum 21 rotates, causing the rotating ring 22 to twist the torsion spring 23. Then, the push plate 10 can be pulled to move the rack 9, and the rack 9 can be pulled out. Then, the sealing plate 7 can be disassembled. After that, the motor 5 and the bracket 6 can be taken out from the through groove for maintenance.When installing the motor 5, the bracket 6 and the motor 5 can be installed into the housing 1 through the through slot, and the upper and lower ends of the bracket 6 can be moved into the corresponding sliding grooves. The left end of the bracket 6 can be inserted into the slot opened in the inner wall of the housing 1. Then, the sealing plate 7 can be installed into the through slot, and the right end of the bracket 6 can be inserted into the slot opened on one side of the sealing plate 7, thereby restricting and fixing the bracket 6. Then, the rack 9 can be passed through the hole on the sealing plate 7 and through the fixing seat 8. At the same time, the push plate 10 will compress the spring 19. During the process of the rack 9 passing through the fixing seat 8, it will mesh with the gear 13, thereby driving the gear 13 to drive the rotating shaft 12 to rotate. The rotating shaft 12 will drive the gear 14 to rotate synchronously. The teeth on the gear 14 will compress and push the locking block 16 to move the baffle 15 upward, so that the baffle 15 pushes the locking block 16 and compresses. When the teeth of the pressing block 16 on the gear 14 become misaligned with the spring 18, the baffle 15 can be reset and moved downward under the elastic force of the spring 18, causing the pressing block 16 to re-engage with the gear 14. This process is repeated until one end of the sleeve 11 contacts the sealing plate 7. Then, the baffle 27 can be pulled up to move the baffle 26 upward, so that the lower end of the baffle 26 moves above the pressing block 29. After that, the force applied to the rotating handle is gradually released, so that the rotating ring 22 drives the rotating drum 21 to reset and rotate under the torque of the torsion spring 23. The rotating drum 21 will drive the slider 24 to reset and move within the limiting groove 25, thereby moving to the part of the groove perpendicular to the limiting groove 25 and perpendicular to the guide rod 17, thereby restricting and fixing the guide rod 17, thus completing the installation and fixing of the sealing plate 7 and the installation of the motor 5. It is convenient to use and more practical.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wind valve with the function of adjusting the air volume, comprising a shell (1), a valve plate (2) is rotatably installed in the middle of the shell (1), two side walls in the shell (1) are respectively provided with sealing edges (3), and the two sealing edges (3) are located on both sides of the valve plate (2), and a driving mechanism (4) for driving the valve plate (2) to rotate is arranged on the top of the shell (1), characterized in that: one side of the shell (1) is connected with a motor (5) through a support (6), and the output end of the motor (5) is connected with a fan blade, a through slot is formed in one side of the shell (1), and a sealing plate (7) is arranged in the through slot, one end of the sealing plate (7) is connected with one end of the support (6), the sealing plate (7) is connected with the shell (1) through a connecting mechanism, and a fixing assembly is arranged in the connecting mechanism, the connecting mechanism comprises a fixed seat (8), and the fixed seat (8) is symmetrically arranged on the upper and lower walls of the shell (1), one side of the fixed seat (8) is symmetrically provided with a tooth rod (9) penetrating through the fixed seat (8), and one end of the tooth rod (9) is connected with a push plate (10) penetrating through one end of the sealing plate (7). The connecting mechanism further comprises a rotating shaft (12) rotatably installed in the fixed seat (8), the outer wall of the rotating shaft (12) is symmetrically provided with a gear one (13) engaged with the tooth rod (9), the outer wall of the rotating shaft (12) is provided with a gear two (14), the upper side of the gear two (14) is provided with a baffle (15), the bottom of the baffle (15) is connected with a clamping block (16) engaged with the gear two (14), the top of the baffle (15) is connected with a guide rod (17), the outer side of the guide rod (17) is provided with a spring one (18), and the upper end of the guide rod (17) is connected with the fixing assembly arranged on the top of the fixed seat (8).

2. The air valve with the air volume adjusting function according to claim 1, characterized in that: The fixing assembly comprises a fixed cylinder (20) fixedly installed on the top of the fixed seat (8), and the fixed cylinder (20) is arranged on the outer side of the upper end of the guide rod (17), the outer side of the guide rod (17) is movably provided with a rotating cylinder (21) in the inner side of the fixed cylinder (20), the outer wall of the rotating cylinder (21) is provided with a rotating ring (22) and a torsional spring (23) from top to bottom, and the rotating ring (22) and the torsional spring (23) are located in the inner side of the fixed cylinder (20), the two ends of the torsional spring (23) are fixedly connected with the rotating ring (22) and the fixed cylinder (20), the inner wall of the rotating cylinder (21) is symmetrically provided with a sliding block (24), the outer wall of the guide rod (17) is symmetrically provided with a limiting groove (25) matched with the sliding block (24), and the limiting groove (25) is L-shaped, and the upper end of the rotating cylinder (21) is provided with a handle above the fixed cylinder (20).

3. The air valve with the air volume adjusting function according to claim 2, characterized in that: The top of one side of the handle is provided with a blocking rod (26) penetrating through the handle, the upper end of the blocking rod (26) is connected with a blocking block (27), the outer side of the blocking rod (26) is provided with a spring three (28) between the blocking block (27) and the handle, and one side of the outer wall of the fixed cylinder (20) is provided with a pressing block (29) matched with the blocking rod (26).

4. The air valve with the air volume adjusting function according to claim 3, characterized in that: ​ 5. The air valve with the air volume adjusting function according to claim 2, characterized in that: The push plate (10) is symmetrically provided with a sleeve (11) on one side, and the sleeve (11) is sleeved outside the toothed rod (9), the toothed rod (9) is sleeved with a spring (19) inside the sleeve (11), the support (6) is cross-shaped, and the outer shell (1) is symmetrically provided with a sliding groove on the inner wall and the sliding groove is adapted to the support (6).

6. The air valve having the air volume adjusting function according to claim 4, wherein: The lower end of the blocking rod (26) is semispherical, and the side top surface of the extrusion block (29) close to the blocking rod (26) is inclined, and the extrusion block (29) and the blocking rod (26) are vertically distributed.

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