Cleaning structure of air valve

Abstract

The utility model discloses a cleaning structure of an air valve, which relates to the technical field of air valves and comprises an air valve main body, guide grooves and slots are arranged on two sides inside the air valve main body, a cleaning port is arranged on the outer surface of the air valve main body, a sealing strip and a cleaning cover plate are respectively arranged inside the cleaning port, and a gear is connected inside the cleaning cover plate. A coil spring is connected between the gear and the cleaning cover plate, rack insertion plates are connected to the two sides of the interior of the cleaning cover plate, and supporting wheels are connected to the upper portions of the two sides of the cleaning cover plate. Through the arrangement of the cleaning cover plate, the gear, the rack insertion plate, the cleaning opening, the insertion groove and the coil spring, when the cleaning cover plate needs to be taken down, the gear is rotated to enable the rack insertion plate to retract into the cleaning cover plate, so that the limiting of the cleaning cover plate is finished, and the cleaning cover plate can be moved out of the cleaning opening at the moment; after the cleaning opening is exposed, a worker can conveniently clean the valve element; the structure is simple, operation is convenient, and multiple bolts do not need to be operated.

Description

Technical Field

[0001] This utility model relates to the field of air valve technology, specifically to a cleaning structure for an air valve. Background Technology

[0002] A damper, also known as an air volume regulating valve or air damper, is an indispensable central air conditioning terminal accessory in ventilation, air conditioning, and air purification projects in industrial plants and civil buildings. It is generally used in air conditioning and ventilation system ducts to regulate the air volume of branch pipes and can also be used for the mixing and regulation of fresh air and return air. It is mainly divided into opposed multi-leaf regulating valves, butterfly valves, and forward-opening regulating valves. Butterfly valves are the most common. Since they are mainly used for ventilation, and the valve core is usually one or more metal plates connected to a rotating shaft, impurities in the air may collide with the valve core and remain on the valve core surface. Regular cleaning is required to reduce wear and tear on the damper and prevent blockage.

[0003] A novel online-cleanable regulating air valve, application number 202020489423.5, belongs to the field of air valve technology. The novel online-cleanable regulating air valve includes a valve body, a valve stem, a valve plate, a rotary actuator, and a cleaning door. The valve plate is pivotally connected to the valve body via the valve stem, and the outer circumference of the valve plate matches the inner circumference of the valve body. One end of the valve stem passes through the valve body and connects to the rotary actuator fixedly installed on the valve body. The valve body has a cleaning hole corresponding to the position of the valve plate, and a cleaning door covering the cleaning hole is provided on the valve body. The cleaning door is connected to the valve body by screws, and a guide vane is provided on the inner side of the cleaning door, the shape of which matches the shape of the cleaning hole. This utility model, by setting a cleaning door on the valve body, allows operators to clean debris from the valve plate simply by opening the cleaning door; the cleaning method is simple and effective; it enables online cleaning, reduces maintenance costs, avoids equipment downtime, and ensures smooth equipment operation.

[0004] However, the cleaning door is limited by multiple bolts, making disassembly and assembly cumbersome. After disassembly, the cleaning door needs to be placed aside. If the air valve is installed in a high position, it needs to be placed back on the ground, which is also cumbersome. Alternatively, it may occupy the space of the operating platform. Without being able to be limited on the platform, it is easy to fall and cause damage, affecting the cleaning operations of the staff. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a cleaning structure for an air valve to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cleaning structure for a damper, comprising a damper body, wherein guide grooves and slots are provided on both sides of the damper body, a cleaning port is provided on the outer surface of the damper body, and a sealing strip and a cleaning cover are respectively provided inside the cleaning port, and a gear is connected inside the cleaning cover, and a coil spring is connected between the gear and the cleaning cover, a rack insert is connected on both sides of the cleaning cover, and a support wheel is connected above both sides of the cleaning cover.

[0007] By adopting the above technical solution, firstly, when cleaning is required, the worker rotates the gear by handwheel, which meshes with the rack and pinion plate, causing the rack and pinion plate to move. Simultaneously, the coil spring compresses and stores force, causing the rack and pinion plate to retract into the cleaning cover plate, thus ending the limitation on the cleaning cover plate. At this point, the worker first holds one handle and pulls the cleaning cover plate outwards. Then, the worker holds both handles and slowly lowers the cleaning cover plate. This removes the cleaning cover plate from the cleaning opening, exposing the opening for easy cleaning of the valve core. After cleaning, the worker... The operator lifts the cleaning cover upwards and pushes it back towards the back, returning it to the cleaning opening. At this point, the rack insert aligns with the slot. Then, the coil spring reverses the gear, causing the rack insert to enter the slot, thus limiting the cleaning cover's position. The presence of the coil spring continuously applies a reversing force to the gear, preventing vibration from causing the rack insert to shift and accumulate, which could lead to the rack insert being pulled out of the slot. Furthermore, a sealing strip fills the gap between the cleaning cover and the cleaning opening, preventing air leakage at the cleaning cover location and thus avoiding energy waste.

[0008] Furthermore, the cleaning cover is detachably connected to the cleaning port.

[0009] By adopting the above technical solution, when cleaning is required, the operator rotates the gear by handwheel, the gear meshes with the rack insert plate, causing the rack insert plate to move, and the coil spring is compressed to store force, causing the rack insert plate to retract into the cleaning cover plate, thus ending the limitation of the cleaning cover plate; at this time, the operator first holds one handle and pulls the cleaning cover plate outward, and then the operator holds both handles and slowly lowers the cleaning cover plate; thus, the cleaning cover plate is moved out of the cleaning port, and the cleaning port is exposed, making it convenient for the operator to clean the valve core.

[0010] Furthermore, there are two rack inserts, and both rack inserts mesh with gears.

[0011] By adopting the above technical solution, the coil spring reverses the gear to make the rack insert plate enter the slot, thereby limiting the cleaning cover plate. The presence of the coil spring continuously applies a reverse force to the gear, preventing the rack insert plate from shifting due to vibration. The continuous accumulation of displacement would cause the rack insert plate to move out of the slot.

[0012] Furthermore, the rack insert plate is slidably connected to the cleaning cover plate, and the rack insert plate is detachably connected to the slot. The surface of the rack insert plate is coated with a polytetrafluoroethylene coating.

[0013] By adopting the above technical solution, the surface of the rack insert plate is coated with polytetrafluoroethylene, which reduces the impact of the frictional resistance of the rack insert plate on the displacement cleaning cover plate, and avoids wear on the rack insert plate, thus extending the service life of the structure.

[0014] Furthermore, the sealing strip is made of silicone rubber.

[0015] By adopting the above technical solution, when the cleaning cover is returned to the cleaning port, the gap between the cleaning cover and the cleaning port is filled by the sealing strip, thereby avoiding air leakage at the cleaning cover position and the waste of energy.

[0016] Furthermore, the guide groove has a "7" shaped cross section, and the support wheel is in contact with the guide groove.

[0017] By adopting the above technical solution, after the cleaning cover is removed from the cleaning port, it can be moved along the guide groove to the lower outer surface of the air valve body, that is, the cleaning cover is pulled outward. Then the cleaning cover is slowly placed downward to avoid loss. No special placement is required, and the operation is simple and convenient. In addition, the support wheels can reduce the wear between the cleaning cover and the guide groove and extend the service life of the structure.

[0018] Furthermore, an actuator is installed on one side of the main body of the air valve, and the actuator is a pneumatic actuator or an electric actuator, with a valve core connected to the output end of the actuator.

[0019] By adopting the above technical solution, the actuator output drives the valve core to rotate, thereby adjusting the ventilation area inside the air valve body to regulate the air volume.

[0020] Furthermore, handles are fixed on both sides of the outer surface of the cleaning cover, and a handwheel is connected to the outer surface of the gear.

[0021] By adopting the above technical solution, the handle makes it easy for staff to push, pull, lift and lower the cleaning cover, and the handwheel makes it easy for staff to rotate the gears.

[0022] Furthermore, the cleaning cover is made of 6061-T6 aluminum alloy, and the support wheel is a combination of SAE 841 copper-based self-lubricating alloy and chrome-plated steel shaft.

[0023] By adopting the above technical solution, the cleaning cover is made of aluminum alloy, which is lightweight and strong, making it easier for staff to push, pull, lift and place the cleaning cover, thus reducing the effort required for operation.

[0024] Furthermore, the cleaning cover is hollow inside, and multiple reinforcing ribs are provided inside the cleaning cover.

[0025] By adopting the above technical solutions, the weight of the cleaning cover is further reduced while ensuring its strength, making it easier for staff to push, pull, lift, and place the cleaning cover, thus reducing the effort required for operation.

[0026] In summary, the present invention has the following main advantages:

[0027] 1. This utility model, through the arrangement of a cleaning cover plate, gear, rack insert plate, cleaning port, slot, and coil spring, allows for easy removal of the cleaning cover plate. Simply rotate the gear to retract the rack insert plate into the cleaning cover plate, thus ending the limitation on the cleaning cover plate. The cleaning cover plate can then be moved out of the cleaning port, exposing it for easy cleaning of the valve core. After cleaning, simply return the cleaning cover plate to the cleaning port. The coil spring then reverses the gear to move the rack insert plate into the slot, thus limiting the cleaning cover plate. The coil spring continuously applies a reversing force to the gear, preventing vibration from causing displacement of the rack insert plate, which could then accumulate and cause the rack insert plate to move out of the slot. The structure is simple and easy to operate, requiring no manipulation of multiple bolts.

[0028] 2. This utility model, through the setting of guide groove and support wheels, allows the cleaning cover to be moved along the guide groove to below the outer surface of the air valve body after it is removed from the cleaning port. The cleaning cover is then pulled outwards and slowly lowered to prevent loss. No special placement is required, making operation simple and convenient. The support wheels also reduce wear between the cleaning cover and the guide groove, extending the structure's service life. After cleaning, simply lift the cleaning cover upwards and push it back into the cleaning port, facilitating the placement of the removed cleaning cover.

[0029] 3. By setting a sealing strip, this utility model fills the gap between the cleaning cover and the cleaning opening after the cleaning cover returns to the cleaning opening, thereby avoiding air leakage at the cleaning cover position and wasting energy; and increasing the sealing performance. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention during operation;

[0031] Figure 2 This is a schematic diagram of the structure of this utility model during cleaning;

[0032] Figure 3 This is a schematic cross-sectional view of the cleaning cover of this utility model;

[0033] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0034] Figure 5 This is an exploded view of the cleaning cover of this utility model;

[0035] Figure 6 This is a schematic diagram of the gear structure of this utility model.

[0036] In the diagram: 1. Air valve body; 2. Valve core; 3. Actuator; 4. Cleaning cover plate; 5. Gear; 6. Rack insert plate; 7. Cleaning port; 8. Sealing strip; 9. Guide groove; 10. Support wheel; 11. Handle; 12. Slot; 13. Handwheel; 14. Coil spring. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0038] The embodiments of this utility model will be described below based on its overall structure.

[0039] Example 1:

[0040] A cleaning structure for an air valve, such as Figures 1-6As shown, the device includes a damper body 1. Both sides of the damper body 1 have guide grooves 9 and slots 12. The guide grooves 9 have a "7"-shaped cross-section. A cleaning port 7 is provided on the outer surface of the damper body 1. A sealing strip 8 and a cleaning cover plate 4 are respectively installed inside the cleaning port 7. The sealing strip 8 is made of silicone rubber. The cleaning cover plate 4 is detachably connected to the cleaning port 7. A gear 5 is connected inside the cleaning cover plate 4. A coil spring 14 connects the gear 5 to the cleaning cover plate 4. Rack plates 6 are connected to both sides of the inside of the cleaning cover plate 4. There are two rack inserts 6, both of which mesh with gears 5. The rack inserts 6 are slidably connected to the cleaning cover 4 and detachably connected to the slots 12. The surface of the rack inserts 6 is coated with polytetrafluoroethylene. Support wheels 10 are connected to the upper sides of both sides of the cleaning cover 4, and the support wheels 10 contact the guide grooves 9. When cleaning is required, the operator rotates gears 5 via handwheel 13. Gears 5 mesh with rack inserts 6, causing them to shift, and the coil spring 14 compresses and stores force, causing the rack inserts... The cleaning cover 6 retracts into the cleaning cover 4, thus ending the limitation on the cleaning cover 4. At this time, the operator first holds one handle 11 and pulls the cleaning cover 4 outward. Then, the operator holds both hands on the handle 11 and slowly lowers the cleaning cover 4. This removes the cleaning cover 4 from the cleaning port 7, making it easier for the operator to clean the valve core 2. After cleaning, the operator lifts the cleaning cover 4 upward and pushes it back towards the back, so that the cleaning cover 4 returns to the cleaning port 7. At this time, the rack insert 6 corresponds to the slot 12. Then, the coil spring 14 reverses the gear 5 to make the rack insert 6 enter the slot 12, thus limiting the cleaning cover 4. The presence of the coil spring 14 continuously applies a reversing force to the gear 5, preventing the rack insert 6 from shifting due to vibration. The continuous accumulation of displacement would cause the rack insert 6 to move out of the slot 12. The sealing strip 8 fills the gap between the cleaning cover 4 and the cleaning port 7, thus preventing air leakage at the cleaning cover 4 position and energy waste.

[0041] See Figure 1 , Figure 2 and Figure 4 In the above embodiment, an actuator 3 is installed on one side of the air valve body 1. The actuator 3 is a pneumatic actuator or an electric actuator. The output end of the actuator 3 is connected to the valve core 2. The output end of the actuator 3 drives the valve core 2 to rotate, thereby adjusting the ventilation area inside the air valve body 1 to regulate the air volume.

[0042] Example 2:

[0043] Based on the above embodiment one, the following settings are made for ease of operation.

[0044] See Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 In the above embodiment, handles 11 are fixed on both sides of the outer surface of the cleaning cover 4 to facilitate the staff to push, pull and lift the cleaning cover 4; a handwheel 13 is connected to the outer surface of the gear 5 to facilitate the staff to rotate the gear 5.

[0045] Example 3:

[0046] Based on the above embodiment one, the following settings are now made to further facilitate operation.

[0047] See Figures 1-6 In the above embodiment, the cleaning cover 4 is made of 6061-T6 aluminum alloy, which is lightweight and high-strength; the support wheel 10 is composed of SAE 841 copper-based self-lubricating alloy and chrome-plated steel shaft. The support wheel 10 has high load-bearing strength, which prevents the support wheel 10 from being deformed by the weight of the cleaning cover 4, and the surface is smooth and self-lubricating, which reduces wear and extends service life; the cleaning cover 4 is hollow inside and has multiple reinforcing ribs inside, which further reduces the weight of the cleaning cover 4 while ensuring its strength, so that the staff can push, pull and lift the cleaning cover 4, making the operation more labor-saving.

[0048] The implementation principle of this utility model is as follows: First, when cleaning is required, the operator rotates the gear 5 through the handwheel 13. The gear 5 meshes with the rack insert 6, causing the rack insert 6 to move. The coil spring 14 is compressed and stores force, causing the rack insert 6 to retract into the cleaning cover 4, thereby ending the limitation on the cleaning cover 4. At this time, the operator first holds one handle 11 and pulls the cleaning cover 4 outward. Then, the operator holds both hands on the handles 11 and slowly lowers the cleaning cover 4. This causes the cleaning cover 4 to move out of the cleaning port 7. After the cleaning port 7 is exposed, it is convenient for the operator to clean the valve core 2.

[0049] After cleaning, the staff lifts the cleaning cover plate 4 upwards and pushes it back towards the back, so that the cleaning cover plate 4 returns to the cleaning port 7. At this time, the rack insert plate 6 corresponds to the slot 12. Then, the coil spring 14 reverses the gear 5 to make the rack insert plate 6 enter the slot 12, thereby limiting the cleaning cover plate 4. The presence of the coil spring 14 continuously applies a reverse force to the gear 5 to prevent the rack insert plate 6 from shifting due to vibration. The continuous accumulation of displacement will cause the rack insert plate 6 to move out of the slot 12. In addition, the sealing strip 8 fills the gap between the cleaning cover plate 4 and the cleaning port 7, thereby preventing air leakage at the position of the cleaning cover plate 4 and the waste of energy.

[0050] Because the cleaning cover 4 is made of aluminum alloy, it is lightweight and high-strength. The cleaning cover 4 is hollow inside and has reinforcing ribs, which further reduces the weight of the cleaning cover 4 while ensuring its strength, making it easier for workers to push, pull and lift the cleaning cover 4, and making the operation more labor-saving. In addition, the surface of the rack insert 6 is coated with polytetrafluoroethylene, which reduces the impact of the frictional resistance of the rack insert 6 on the displacement of the cleaning cover 4, and avoids wear on the rack insert, thus extending the service life of the structure. At the same time, the support wheel 10 is composed of SAE841 copper-based self-lubricating alloy and chrome-plated steel shaft. First, it has high load-bearing strength, which prevents the support wheel 10 from being deformed by the weight of the cleaning cover 4. Second, its smooth surface has self-lubricating properties, reducing wear and extending service life.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A cleaning structure for a damper, comprising a damper body (1), characterized in that: The air valve body (1) has guide grooves (9) and slots (12) on both sides inside. The air valve body (1) has a cleaning port (7) on its outer surface. The cleaning port (7) is equipped with a sealing strip (8) and a cleaning cover plate (4). The cleaning cover plate (4) is connected to a gear (5). A coil spring (14) is connected between the gear (5) and the cleaning cover plate (4). The cleaning cover plate (4) is connected to a rack insert plate (6) on both sides inside. The cleaning cover plate (4) is connected to a support wheel (10) on the upper side of both sides.

2. The cleaning structure of the air valve according to claim 1, characterized in that: The cleaning cover (4) is detached from the cleaning port (7).

3. The cleaning structure of the air valve according to claim 1, characterized in that: There are two rack inserts (6), and both rack inserts (6) mesh with the gear (5).

4. The cleaning structure of the air valve according to claim 3, characterized in that: The rack insert (6) is slidably connected to the cleaning cover (4), and the rack insert (6) is detachably connected to the slot (12). The surface of the rack insert (6) is coated with polytetrafluoroethylene.

5. The cleaning structure of the air valve according to claim 1, characterized in that: The sealing strip (8) is made of silicone rubber.

6. The cleaning structure of the air valve according to claim 1, characterized in that: The guide groove (9) has a "7" shaped cross section, and the support wheel (10) is in contact with the guide groove (9).

7. The cleaning structure of the air valve according to claim 1, characterized in that: An actuator (3) is installed on one side of the main body (1) of the air valve, and the actuator (3) is a pneumatic actuator or an electric actuator. The output end of the actuator (3) is connected to a valve core (2).

8. The cleaning structure of a damper according to claim 4, characterized in that: The cleaning cover (4) has handles (11) fixed on both sides of its outer surface, and the gear (5) has a handwheel (13) connected to its outer surface.

9. The cleaning structure of a damper according to claim 6, characterized in that: The cleaning cover (4) is made of 6061-T6 aluminum alloy, and the support wheel (10) is a combination of SAE 841 copper-based self-lubricating alloy and chrome-plated steel shaft.

10. The cleaning structure of a damper according to claim 9, characterized in that: The cleaning cover (4) is hollow inside, and multiple reinforcing ribs are provided inside the cleaning cover (4).

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