A sealed anti-offset balanced ventilation regulating air valve device

Abstract

The present invention discloses a sealed anti-offset balanced ventilation regulating air valve device, and the present invention relates to the technical field of regulating valves. It includes a frame, inside which a blade is rotatably connected. An actuator is fixedly connected to the outer wall of the frame, and the actuator is connected to the rotating shaft of the blade through a gear transmission assembly. A sealing assembly is provided inside the frame, and the sealing assembly includes a sealing tube. When the blade rotates and closes, the sealing plate is pressed against the outer wall of the sealing tube by the elastic force of the elastic sealing strip, thereby avoiding gaps when the blade has an offset and is not perpendicular. At the same time, the fluid enters the inner wall of the sealing tube through the circulation port and flows upward and downward. The fluid flows to the center of the arc-shaped plate and then circulates to both sides to push the sealing plate to slide, so that the sealing plate is pressed tightly against the rubber sealing pad by the force, thereby improving the sealing performance.

Description

Technical Field

[0001] The invention relates to the technical field of regulating valves, and in particular to a sealed anti-deviating balanced ventilation regulating air valve device. Background Art

[0002] In the application field of ventilation systems, from large industrial plants to various types of civil buildings, dampers are the core components to ensure the efficient and stable operation of ventilation systems. The main function of the ventilation system is to achieve the exchange of indoor and outdoor air, maintain the appropriate state of indoor air quality, temperature and humidity, provide people with a comfortable and healthy living and working environment, and ensure that the air environment in the industrial production process meets the process requirements. The damper has the key task of controlling the air volume and balancing the system resistance. Its performance is directly related to the overall effectiveness and energy efficiency of the ventilation system.

[0003] However, traditional regulating air valves have exposed many problems during actual use, which seriously restricts the optimization and upgrading of ventilation systems.

[0004] The sealing structure design of the traditional damper at the closed blade is insufficient, making it difficult to achieve complete sealing. When the ventilation system is running, both hot and cold air will inevitably leak from the gaps where the blades intersect. Taking the central air conditioning ventilation system of a commercial building as an example, during winter heating or summer cooling, the leakage of heat or cold caused by the poor sealing of the damper requires the air conditioning system to consume more energy to maintain the indoor temperature setting value. According to statistics, in some old buildings, this part of the energy waste caused by sealing problems can account for 15%-25% of the energy consumption of the entire ventilation system, which not only increases operating costs, but also goes against the current development concept of energy conservation and emission reduction.

[0005] The airflow conditions in the ventilation system are complex and changeable, and the flow rate and pressure fluctuations of the fluid often exert a large impact on the blades of the damper. The structure of the traditional damper cannot effectively resist these external forces, and the blades are prone to displacement or even self-rotation when subjected to a large impact. In industrial ventilation systems, the instantaneous airflow changes caused by the start and stop of the fan, as well as the airflow instability caused by the local resistance changes in the pipeline, may cause the blades of the traditional damper to deviate. Blade deviation will not only significantly reduce the accuracy of the damper's regulation of the air volume, but may also destroy the resistance balance of the ventilation system, causing unstable operation of the entire system, affecting the ventilation effect, and may even damage other ventilation equipment.

[0006] With the increasing diversification of building functions and the continuous refinement of industrial production processes, the requirement for the air volume regulation accuracy of ventilation systems is getting higher and higher. The regulation methods and accuracy of traditional regulating air valves are difficult to meet these diverse needs. In some places with extremely high requirements for air quality and temperature and humidity control, such as operating rooms in hospitals and electronic chip production workshops, traditional regulating air valves cannot accurately control the air volume, resulting in unstable indoor air quality, large fluctuations in temperature and humidity, and inability to meet the strict environmental requirements for medical surgeries and chip production, thereby affecting the medical effect and product quality.

[0007] The structural design of traditional regulating air valves makes it easy to accumulate dust, dirt, and impurities during long-term operation. These pollutants will not only affect the sealing performance and regulation accuracy of the air valves but also accelerate the wear and corrosion of components. Moreover, due to its complex structure, the maintenance and repair work is difficult, requiring a large amount of manpower, material resources, and time. Frequent maintenance and repair not only increase the operating cost of the ventilation system but also may cause the ventilation system to be unable to operate normally during maintenance, affecting the normal use of the place. At the same time, due to component damage and aging, the service life of traditional regulating air valves is relatively short, further increasing the equipment replacement cost. Summary of the Invention

[0008] Aiming at the deficiencies of the prior art, the present invention provides a sealed anti-offset balanced ventilation regulating air valve device, which solves the problem that gas leakage easily occurs at the intersection of the blades of the regulating valve, resulting in the loss of hot or cold air and causing energy waste.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sealed anti-offset balanced ventilation and regulating air valve device, comprising a frame, wherein blades are rotatably connected inside the frame, and a driver is fixedly connected to the outer wall of the frame, and the driver is connected to the rotating shaft of the blade through a gear transmission assembly, and a sealing assembly is arranged inside the frame, and the sealing assembly comprises a sealing tube, and the sealing tube is fixedly installed on the inner wall of the frame, and an arc plate is fixedly connected to one side of the blade, and a sealing plate is slidably connected to the inner wall of the arc plate, and an elastic sealing strip is fixedly connected to the side wall of the sealing plate, and the elastic sealing strip is fixedly installed on the inner wall of the arc plate, and the outer wall of the sealing tube is fixedly connected to a limiting block, and a rubber sealing pad is bonded to the outer wall of the limiting block, and a flow port is opened on the side wall of the sealing tube, and the gear transmission The driving assembly includes a first bevel gear, one side of the first bevel gear is meshedly connected to the second bevel gear, the center of the second bevel gear is fixedly connected to a connecting rod, the outer wall of the connection is fixedly connected to the third bevel gear, one side of the third bevel gear is meshedly connected to the fourth bevel gear, and the fourth bevel gear is fixedly installed on the outer wall of the rotating shaft of the blade. The driver drives the blade to rotate through the gear transmission assembly, thereby opening and closing the regulating air valve. When the blade rotates and closes, the sealing plate is pressed against the outer wall of the sealing tube through the elastic force of the elastic sealing strip, thereby preventing the blade from having a gap when it is offset and not vertical. At the same time, the fluid enters the inner wall of the sealing tube through the circulation port and flows to the upper and lower sides. The fluid flows to the center of the arc plate and then circulates to both sides to push the sealing plate to slide, so that the sealing plate is forced to tightly press against the rubber sealing pad, thereby improving the sealing performance.

[0010] Preferably, the side wall of the sealing plate is rotatably connected with an anti-drift plate, the anti-drift plate is located outside the sealing tube, the side wall of the anti-drift plate is fixedly connected with an anti-drift strip, and the anti-drift strip is fixedly installed at the side wall of the sealing plate.

[0011] Preferably, a clamp is fixedly connected to one side of the anti-deviation plate, and a clamping groove is opened on the outer wall of the sealing tube. The adjustment plate maintains the side tilt by the elastic force of the elastic adjustment strip. The fluid flow drives the anti-deviation plate to rotate, so that the clamping head is inserted into the interior of the clamping groove, thereby avoiding the problem of self-rotation of the blades caused by excessive fluid flow rate. At the same time, the anti-deviation plate is only installed on the fluid contact surface, which does not affect the rotation adjustment of the blades.

[0012] Preferably, a wind reduction component is provided on the side wall of the blade, and the wind reduction component comprises a wind reduction cylinder, and the wind reduction cylinder is fixedly installed on the side wall of the blade.

[0013] Preferably, air reduction ports are provided at the upper and lower parts of the side walls of the air reduction cylinder, and a guide plate is fixedly connected to the outer wall of the air reduction cylinder.

[0014] Preferably, the inner wall of the wind reduction cylinder is slidably connected with an adjustment plate, and the side wall of the adjustment plate is fixedly connected with an elastic adjustment strip, and the elastic adjustment strip is fixedly installed on the inner wall of the wind reduction cylinder. When the fluid flows, it enters the interior of the wind reduction cylinder through the wind reduction port from the top and bottom, thereby forming convection, offsetting the impulse of the fluid, and reducing the impact of the fluid flow on the blades. At the same time, the adjustment plate is located inside the wind reduction port through the elastic force of the elastic adjustment strip, thereby reducing the width of the wind reduction port, making the flow rate of the passing fluid faster and increasing the impulse offset by the fluid. When the wind force is large, the adjustment plate slides to expand the width of the wind reduction port to reduce the impact of the fluid on the wind reduction component.

[0015] Preferably, a limit plate is fixedly connected to the inner wall of the frame, and the limit plate is located close to the blades.

[0016] Preferably, the side wall of the blade is slidably connected to a slider, the top of the slider is slidably connected to a snap-in plate, the side wall of the snap-in plate is fixedly connected to an elastic reset strip, the elastic reset strip is fixedly installed on the outer wall of the blade, the snap-in plate maintains a vertical tilt by the elastic force of the elastic reset strip, when the blade is tilted open, the fluid pushes the snap-in plate to slide and hang on the limit plate, and then limits the position of the blade by the impact force of the fluid, avoiding the self-rotation of the blade caused by excessive fluid flow rate, and at the same time, when the blade rotates, the snap-in plate rotates to avoid the limit plate hindering the rotation of the blade.

[0017] The present invention provides a sealed anti-deviating balanced ventilation regulating air valve device. It has the following beneficial effects:

[0018] (I) In the sealed anti-deviation balanced ventilation regulating air valve device, when the blades rotate and close, the sealing plate presses against the outer wall of the sealing tube through the elastic force of the elastic sealing strip, thereby preventing the blades from having gaps when they are deviated and not vertical. At the same time, the fluid enters the inner wall of the sealing tube through the flow port and flows to the upper and lower sides. The fluid flows to the center of the arc plate and then circulates to both sides to push the sealing plate to slide, so that the sealing plate is pressed tightly against the rubber sealing pad, thereby improving the sealing performance.

[0019] (ii) In the sealed anti-drift balanced ventilation regulating air valve device, the fluid flow drives the anti-drift plate to rotate, so that the clamp head is inserted into the inside of the clamping slot, thereby avoiding the problem of self-rotation of the blades caused by excessive fluid flow rate. At the same time, the anti-drift plate is only installed on the fluid contact surface, which does not affect the rotation adjustment of the blades.

[0020] (III). In this sealed anti-offset balanced ventilation regulating air valve device, when fluid flows, it enters the interior of the air volume reduction cylinder obliquely from above and below through the air volume reduction opening, thereby forming a convection to counteract the impact force of the fluid, reducing the impact force of the fluid flow on the blades. At the same time, the regulating plate is located inside the air volume reduction opening by the elastic force of the elastic regulating strip, thereby reducing the width of the air volume reduction opening, increasing the flow rate of the passing fluid, and increasing the counteracted impact force of the fluid. When the wind force is large, the regulating plate slides to expand the width of the air volume reduction opening, reducing the impact of the fluid on the air volume reduction component.

[0021] (IV). In this sealed anti-offset balanced ventilation regulating air valve device, when the blade is tilted and opened, the fluid pushes the clamping plate to slide and hang on the limiting plate, thereby restricting the position of the blade by the impact force of the fluid, preventing the blade from self-rotating due to excessive fluid flow rate. At the same time, when the blade rotates, the clamping plate rotates to avoid the limiting plate hindering the rotation of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the sealing component structure of the present invention;

[0024] Figure 3 is a schematic diagram of the anti-offset plate structure of the present invention;

[0025] Figure 4 is a schematic diagram of the air volume reduction component structure of the present invention;

[0026] Figure 5 is a cross-sectional view of the air volume reduction cylinder of the present invention;

[0027] Figure 6 is a schematic diagram of the clamping plate structure of the present invention.

[0028] In the figure: 1. Frame; 2. Blade; 3. Driver; 4. Sealing component; 5. Air volume reduction component; 401. Sealing pipe; 402. Arc plate; 403. Sealing plate; 404. Elastic sealing strip; 405. Limiting block; 406. Rubber sealing pad; 407. Flow port; 408. Anti-offset plate; 409. Anti-offset strip; 410. Clamping head; 411. Card slot; 412. Limiting plate; 413. Clamping plate; 414. Elastic reset strip; 415. Slide block; 51. Air volume reduction cylinder; 52. Air volume reduction opening; 53. Deflector; 54. Regulating plate; 55. Elastic regulating strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-6 The present invention provides a technical solution: a sealed anti-deviating balanced ventilation regulating air valve device, comprising a frame 1, wherein a blade 2 is rotatably connected inside the frame 1, a driver 3 is fixedly connected to the outer wall of the frame 1, and the driver 3 is connected to the rotating shaft of the blade 2 through a gear transmission assembly. A sealing assembly 4 is arranged inside the frame 1, and the sealing assembly 4 comprises a sealing tube 401, wherein the sealing tube 401 is fixedly installed at the inner wall of the frame 1, an arc plate 402 is fixedly connected to one side of the blade 2, a sealing plate 403 is slidably connected to the inner wall of the arc plate 402, an elastic sealing strip 404 is fixedly connected to the side wall of the sealing plate 403, and the elastic sealing strip 404 is fixedly installed at the inner wall of the arc plate 402, the outer wall of the sealing tube 401 is fixedly connected to a limiting block, a rubber sealing pad 406 is bonded to the outer wall of the limiting block, and a flow port 407 is opened on the side wall of the sealing tube 401 The gear transmission assembly includes a first bevel gear, one side of the first bevel gear is meshedly connected with the second bevel gear, the center of the second bevel gear is fixedly connected with a connecting rod, the outer wall of the connection is fixedly connected with a third bevel gear, one side of the third bevel gear is meshedly connected with a fourth bevel gear, and the fourth bevel gear is fixedly installed on the outer wall of the rotating shaft of the blade 2. The driver 3 drives the blade 2 to rotate through the gear transmission assembly, thereby opening and closing the regulating air valve. When the blade 2 rotates and closes, the sealing plate 403 is pressed against the outer wall of the sealing tube 401 by the elastic force of the elastic sealing strip 404, thereby preventing the blade 2 from having a gap when it is offset and not vertical. At the same time, the fluid enters the inner wall of the sealing tube 401 through the flow port 407 and flows to the upper and lower sides. The fluid flows to the center of the arc plate 402 and then circulates to both sides to push the sealing plate 403 to slide, so that the sealing plate 403 is forced to tightly press against the rubber sealing pad 406, thereby improving the sealing performance.

[0031] The side wall of the sealing plate 403 is rotatably connected with an anti-drift plate 408 , and the anti-drift plate 408 is located outside the sealing tube 401 . The side wall of the anti-drift plate 408 is fixedly connected with an anti-drift strip 409 , and the anti-drift strip 409 is fixedly installed at the side wall of the sealing plate 403 .

[0032] One side of the anti-offset plate 408 is fixedly connected with a chuck 410. A clamping groove 411 is formed on the outer wall of the sealing pipe 401. The adjusting plate 54 maintains a lateral tilt through the elastic force of the elastic adjusting strip 55. The fluid flow pushes the anti-offset plate 408 to rotate, so that the chuck 410 is inserted into the inside of the clamping groove 411, thereby avoiding the problem that the blade 2 generates self-rotation due to excessive fluid flow rate. At the same time, only the anti-offset plate 408 is installed on the fluid contact surface, thereby not affecting the rotation adjustment of the blade 2.

[0033] A wind reduction assembly 5 is formed on the side wall of the blade 2. The wind reduction assembly 5 includes a wind reduction cylinder 51, and the wind reduction cylinder 51 is fixedly installed on the side wall of the blade 2.

[0034] Wind reduction openings 52 are formed in the upper and lower sides of the side wall of the wind reduction cylinder 51. A diversion plate 53 is fixedly connected to the outer wall of the wind reduction cylinder 51.

[0035] An adjusting plate 54 is slidably connected to the inner wall of the wind reduction cylinder 51. An elastic adjusting strip 55 is fixedly connected to the side wall of the adjusting plate 54, and the elastic adjusting strip 55 is fixedly installed on the inner wall of the wind reduction cylinder 51. When the fluid flows, it obliquely enters the inside of the wind reduction cylinder 51 from the upper and lower sides through the wind reduction openings 52, thereby forming a convection to offset the impact force of the fluid, reduce the impact force of the fluid flow on the blade 2. At the same time, the adjusting plate 54 is located inside the wind reduction openings 52 through the elastic force of the elastic adjusting strip 55, thereby reducing the width of the wind reduction openings 52, making the fluid flow rate passing through faster, increasing the offset impact force of the fluid, and when the wind force is large, the adjusting plate 54 slides to expand the width of the wind reduction openings 52, reducing the impact of the fluid on the wind reduction assembly 5.

[0036] A limiting plate 412 is fixedly connected to the inner wall of the frame 1, and the limiting plate 412 is located close to the blade 2.

[0037] A slider 415 is slidably connected to the side wall of the blade 2. A clamping plate 413 is slidably connected to the top of the slider 415. An elastic reset strip 414 is fixedly connected to the side wall of the clamping plate 413, and the elastic reset strip 414 is fixedly installed on the outer wall of the blade 2. The clamping plate 413 maintains a vertical tilt through the elastic force of the elastic reset strip 414. When the blade 2 is tilted open, the fluid pushes the clamping plate 413 to slide and hang on the limiting plate 412, thereby restricting the position of the blade 2 through the impact force of the fluid, avoiding the self-rotation of the blade 2 caused by excessive fluid flow rate. At the same time, when the blade 2 rotates, the clamping plate 413 rotates to avoid the limiting plate 412 hindering the rotation of the blade 2.

[0038] During operation, the driver 3 drives the blade 2 to rotate through the gear transmission assembly, thereby opening and closing the regulating air valve. When the blade 2 rotates and closes, the sealing plate 403 abuts against the outer wall of the sealing pipe 401 by the elastic force of the elastic sealing strip 404, thereby avoiding gaps in the case where the blade 2 has an offset and is not vertical. At the same time, the fluid enters the inner wall of the sealing pipe 401 through the flow port 407 and flows upward and downward. The fluid flows towards the center of the arc-shaped plate 402 and then flows to both sides to push the sealing plate 403 to slide, so that the sealing plate 403 is forced to tightly abut against the rubber gasket 406, thereby improving the sealing performance. The adjusting plate 54 maintains a roll by the elastic force of the elastic adjusting strip 55. The fluid flow pushes the anti-offset plate 408 to rotate, so that the chuck 410 is inserted into the inside of the card slot 411, thereby avoiding the problem of self-rotation of the blade 2 caused by too high fluid flow rate. At the same time, the anti-offset plate 408 is only installed on the fluid contact surface, thereby not affecting the rotation adjustment of the blade 2. When the fluid flows, it obliquely enters the inside of the air-reducing cylinder 51 from above and below through the air-reducing port 52, thereby forming a convection to offset the impact force of the fluid and reducing the impact force of the fluid flow on the blade 2. At the same time, the adjusting plate 54 is located inside the air-reducing port 52 by the elastic force of the elastic adjusting strip 55, thereby reducing the width of the air-reducing port 52 and making the fluid flow rate passing through faster, increasing the offset impact force of the fluid. When the wind force is large, the adjusting plate 54 slides to widen the width of the air-reducing port 52, reducing the impact of the fluid on the air-reducing assembly 5. The clamping plate 413 maintains a vertical inclination by the elastic force of the elastic reset strip 414. When the blade 2 is tilted and opened, the fluid pushes the clamping plate 413 to slide and hang on the limiting plate 412, thereby restricting the position of the blade 2 by the impact force of the fluid and avoiding self-rotation of the blade 2 caused by too high fluid flow rate. At the same time, when the blade 2 rotates, the clamping plate 413 rotates to avoid the limiting plate 412 hindering the rotation of the blade 2.

[0039] The device of the present invention, through innovative sealing components such as sealing pipes, elastic sealing strips and rubber gaskets working together, greatly improves the sealing performance, effectively reduces gas leakage and lowers energy consumption. The unique anti-offset design, including structures such as anti-offset plates, chucks and card slots, can effectively resist the impact force of the fluid, avoid blade offset and self-rotation, and ensure the stability and adjustment accuracy of the air valve operation. The reasonable air-reducing assembly and other structural designs enable it to accurately adjust the air volume under different air flow conditions and meet diverse ventilation requirements. In addition, the structural design of the device is convenient for maintenance and overhaul, helps to extend the service life and reduce the maintenance cost (highlight the core advantages according to the name, such as excellent sealing performance, strong anti-offset ability, etc.). These innovative designs effectively solve the problems existing in traditional regulating air valves, provide a more efficient, stable and economical solution for the ventilation system, and promote the progress and development of ventilation technology.

[0040] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed anti-offset balanced ventilation regulating air valve device, comprising a frame (1), characterized in that: A blade (2) is rotatably connected inside the frame (1). A driver (3) is fixedly connected to the outer wall of the frame (1). The driver (3) is connected to the rotating shaft of the blade (2) through a gear transmission assembly. A sealing assembly (4) is provided inside the frame (1). The sealing assembly (4) includes a sealing tube (401). The sealing tube (401) is fixedly installed at the inner wall of the frame (1). An arc-shaped plate (402) is fixedly connected to one side of the blade (2). A sealing plate (403) is slidably connected to the inner side wall of the arc-shaped plate (402). An elastic sealing strip (404) is fixedly connected to the side wall of the sealing plate (403). The elastic sealing strip (404) is fixedly installed at the inner wall of the arc-shaped plate (402). A limiting block (405) is fixedly connected to the outer wall of the sealing tube (401). A rubber gasket (406) is adhered to the outer wall of the limiting block (405). A circulation port (407) is provided on the side wall of the sealing tube (401). An anti-offset plate (408) is rotatably connected to the side wall of the sealing plate (403). The anti-offset plate (408) is located outside the sealing tube (401). An anti-offset strip (409) is fixedly connected to the side wall of the anti-offset plate (408). The anti-offset strip (409) is fixedly installed at the side wall of the sealing plate (403). A clamping head (410) is fixedly connected to one side of the anti-offset plate (408). A clamping groove (411) is provided on the outer wall of the sealing tube (401). A wind reduction assembly (5) is provided on the side wall of the blade (2). The wind reduction assembly (5) includes a wind reduction cylinder (51). The wind reduction cylinder (51) is fixedly installed at the side wall of the blade (2). Wind reduction openings (52) are provided above and below the side wall of the wind reduction cylinder (51). A guide plate (53) is fixedly connected to the outer wall of the wind reduction cylinder (51).

2. The sealed anti-offset balanced ventilation regulating air valve device according to claim 1, wherein: A slider (415) is slidably connected to the side wall of the blade (2). A clamping plate (413) is slidably connected to the top of the slider (415). An adjusting plate (54) is slidably connected to the inner wall of the wind reduction cylinder. An elastic adjusting strip (55) is fixedly connected to the side wall of the adjusting plate (54). The elastic adjusting strip (55) is fixedly installed at the inner wall of the wind reduction cylinder (51).

3. The sealed anti-offset balanced ventilation regulating air valve device according to claim 2, characterized in that: A limiting plate (412) is fixedly connected to the inner wall of the frame (1). The limiting plate (412) is located near the blade (2).

4. A sealed anti-offset balanced ventilation regulating air valve device according to claim 3, characterized in that: A clamping plate (413) is slidably connected to the side wall of the blade (2). An elastic reset strip (414) is fixedly connected to the side wall of the clamping plate (413). The elastic reset strip (414) is fixedly installed at the outer wall of the blade (2).

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