Anti-freezing combined air valve

Abstract

The invention relates to the technical field of air valves, in particular to an anti-freezing combined air valve which comprises a valve frame, the valve frame is of a hollow frame type structure, and the anti-freezing combined air valve further comprises a plurality of valve blades, a plurality of pairs of sealing plates, a plurality of vibration deicing assemblies, a synchronous driving assembly and a pair of blade surface ice sweeping assemblies. The valve frame is fixedly connected with a plurality of pairs of valve blades, every two adjacent valve blades are attached to each other, sealing strips are fixedly connected to the top wall and the bottom wall of the valve frame correspondingly, the two sealing strips are attached to the top of the valve blade at the top and the bottom of the valve blade at the bottom correspondingly, and the multiple pairs of sealing plates are located at the two ends of the valve blades correspondingly. Inertial impact force generated by the vibration deicing assembly is transmitted to the sealing plate, ice shells on the surface of the sealing plate are shattered to be broken through the sealing plate, the ice shell fragments are separated from the sealing plate, and therefore the valve blade and the valve frame are separated from each other, the valve blade can work normally, and the rapid deicing effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of air valves, and in particular to an antifreeze type combined air valve. Background Art

[0002] Damper devices are used in ventilation, air conditioning, and industrial piping systems to control and regulate the flow of air or gas. In environments such as subway ventilation and air conditioning systems and industrial plant ventilation systems, where high air volumes require high regulation precision, combination dampers are often used to meet ventilation needs under varying operating conditions. A combination damper is a large ventilation device composed of multiple individual dampers. Its advantage lies in its ability to be disassembled for transportation and assembled on-site using bolts, reducing transportation costs.

[0003] The leakage rate of a combination damper is a key indicator of its sealing performance. In HVAC systems, a low leakage rate helps reduce energy loss and achieve energy savings. In environments with stringent environmental requirements, a low leakage rate can prevent the intrusion of pollutants that could affect experimental results and medical safety. Therefore, improving the ventilation performance of combination dampers lies in enhancing their sealing properties, which requires a tight fit between the valve blade and the valve frame.

[0004] When operating in low-temperature environments, moisture can freeze when it contacts the damper due to high humidity and pipe leaks, causing it to malfunction. This necessitates the use of an antifreeze combination damper to ensure the proper functioning of the ventilation system. Existing antifreeze combination dampers typically remove ice by heating the valve blades to melt the ice, but this solution consumes a lot of energy and has low deicing efficiency.

[0005] Currently, there is a de-icing solution for anti-freeze combination dampers that uses a striking block to impact the valve leaf, generating vibrations that break the ice shell and achieve the desired de-icing effect. However, this solution is not convenient for removing the ice shell at the connection between the valve leaf and the valve frame. Because the valve leaf and the valve frame fit very tightly together and are located in a relatively narrow space, it is difficult for the striking block to contact them. Once frozen, the valve leaf cannot rotate and may even burn out the drive motor during operation. Furthermore, this solution requires adjusting the valve leaf to a closed angle when striking the valve leaf, thus limiting its operating range. When ice forms while the valve leaf is open, it cannot quickly de-ice the valve leaf, and thus needs improvement. Summary of the Invention

[0006] The purpose of the present invention is to provide an antifreeze type combined air valve, which can quickly remove ice without adjusting the valve leaf angle, and can remove the ice shell at the connection between the valve leaf and the valve frame, thereby improving the antifreeze effect of the combined air valve.

[0007] To achieve this object, the present invention adopts the following technical solutions: Provided is an antifreeze type combined air valve, including a valve frame, which is a hollow frame structure and also includes multiple valve leaves, multiple pairs of sealing plates, multiple vibration de-icing assemblies, a synchronous drive assembly and a pair of blade surface ice sweeping assemblies. The valve leaves can be installed vertically rotatably in the valve frame, and the multiple valve leaves are arranged at vertical intervals. Two adjacent valve leaves fit together. The top wall and bottom wall of the valve frame are fixedly connected with sealing strips. The two sealing strips are respectively fitted with the top of the top valve leaf and the bottom of the bottom valve leaf. Multiple pairs of sealing plates are respectively located at both ends of the valve leaf. The sealing plates are movably installed on the valve leaves through the vibration de-icing assembly. One end of the sealing plate fits together with the valve leaf, and the other end of the sealing plate fits with the inner wall of the valve frame. The synchronous drive assembly and the blade surface ice sweeping assembly are both installed on the valve frame. The synchronous drive assembly is used to drive the valve leaf to rotate, and the blade surface ice sweeping assembly is used to sweep away the ice shell on both sides of the valve leaf.

[0008] Preferably, the vibration de-icing assembly includes a rotating shaft, a spur gear, a first torsion spring, a protrusion and a knocking block. The rotating shaft passes through the inner wall of the valve frame and is rotatably connected thereto. One end of the rotating shaft is rotatably connected to the valve leaf. One end of the spur gear passes through the side wall of the other end of the rotating shaft and is rotatably connected thereto. The first torsion spring is sleeved on the outer periphery of the spur gear. One end of the first torsion spring is fixedly connected to the spur gear. The other end of the first torsion spring is fixedly connected to the inner wall of the rotating shaft. The protrusion is fixedly connected to one side of the rotating shaft. The knocking block is fixedly connected to the eccentric part of one end of the spur gear. The knocking block and the protrusion conflict with each other. The synchronous drive assembly includes a pair of missing gears. The missing gears can be vertically rotatably installed in the valve frame. The two missing gears are respectively engaged with the spur gears at both ends of the bottom valve leaf.

[0009] Preferably, the vibration de-icing assembly also includes a pair of round rods and two pairs of tension springs. The round rods are fixedly connected to the inner wall of the valve leaf. A pair of sealing plates are symmetrically arranged on both sides of the rotating shaft and combined into an annular structure. The outer periphery of one end of the rotating shaft is a square structure and is in conflict with the inner wall of the sealing plate. The two ends of the round rod pass through the two sealing plates respectively and are slidably connected to them. The tension spring is sleeved on the outer periphery of the round rod, one end of the tension spring is fixedly connected to the sealing plate, and the other end of the tension spring is fixedly connected to the inner wall of the valve leaf.

[0010] Preferably, the synchronous drive assembly also includes multiple pairs of connecting rods, a pair of support shafts, two pairs of pulleys, a long rod, a pair of bevel gears and a motor, a pair of connecting rods are respectively located at both ends of the valve leaf, and the top and bottom of the connecting rods are respectively rotatably connected to the eccentric point of one end of two adjacent spur gears, the two pairs of pulleys are respectively located at both ends of the valve frame, and a belt is used for transmission between a pair of pulleys, the two support shafts are respectively located at both ends of the valve frame, the support shaft is rotatably connected to the inner wall of the valve frame, the support shaft passes through the missing gear and the two pulleys at the top and is coaxially connected thereto, the long rod is rotatably installed at the bottom of the valve frame, the two ends of the long rod are respectively coaxially connected to the two pulleys at the bottom, one of the bevel gears is coaxially connected to the periphery of the long rod, the two bevel gears mesh with each other, the bottom of one side of the valve frame is fixedly connected to a frame, the top of the frame is fixedly connected to the bottom of the motor, and the output shaft of the motor passes through the side wall of the valve frame and is coaxially connected to another bevel gear.

[0011] Preferably, the synchronous drive assembly also includes multiple transmission shafts and multiple pairs of idling mechanisms. The transmission shafts are respectively located in the valve leaves and their two ends are coaxially connected to the two rotating shafts. A pair of idling mechanisms are symmetrically arranged at both ends of the transmission shaft. The idling mechanism includes a clamping block and a pair of springs. One end of the spring is fixedly connected to one side of the clamping block. The clamping block is circumferentially arranged on the periphery of the transmission shaft. A plurality of long grooves are opened on the periphery of the transmission shaft. The long grooves are slidably connected to the clamping blocks. The other end of the spring is fixedly connected to the inner wall of the long groove. A plurality of clamping grooves are opened inside the valve leaf, and the clamping grooves and the other side of the clamping block are clamped with each other.

[0012] Preferably, the two blade surface ice sweeping assemblies are respectively located at the top of one side of the valve frame and the bottom of the other side and are arranged in a central symmetrical manner. The blade surface ice sweeping assembly includes a bracket, a first hydraulic rod, a support plate, a mounting plate, a motor and a cleaning roller. The bracket can be installed on the valve frame for horizontal movement. One end of the first hydraulic rod is rotatably connected to the inner wall of the bracket, the telescopic end of the first hydraulic rod is rotatably connected to the inner wall of one end of the support plate, the middle of the support plate is rotatably connected to the inner wall of the other end of the bracket, and the mounting plate can be installed at the bottom of the other end of the support plate for vertical movement. One side of the motor is fixedly connected to the mounting plate, and the output shaft of the motor passes through the mounting plate and is coaxially connected to the cleaning roller. When the support plate is in a vertical state, one side of the mounting plate is in contact with the inner wall of the valve frame, and the cleaning roller is separated from the valve leaf. When the support plate is in a horizontal state, the mounting plate is separated from the valve frame, and one side of the cleaning roller conflicts with the valve leaf.

[0013] Preferably, the blade ice sweeping assembly also includes a slide rail, an electric slider and a second hydraulic rod. The two slide rails are respectively fixedly connected to the top and bottom of the valve frame, the electric slider is slidably connected to the periphery of the slide rail, the electric slider is fixedly connected to the bracket, the top of the second hydraulic rod is fixedly connected to the bottom of one end of the support plate away from the first hydraulic rod, and the telescopic end of the second hydraulic rod is fixedly connected to the top of the mounting plate.

[0014] Preferably, the blade surface ice sweeping assembly also includes a pair of cover plates, two pairs of L-shaped rods and a plurality of second torsion springs, one end of the two pairs of L-shaped rods are fixedly connected to the two cover plates respectively, the top wall and the bottom of the valve frame are provided with empty grooves, the cover plates and the inner walls of the empty grooves fit together, the other end of the L-shaped rod is rotatably connected to the valve frame, the second torsion spring is sleeved on the outer periphery of one end of the L-shaped rod, one end of the second torsion spring is fixedly connected to the L-shaped rod, the other end of the second torsion spring is fixedly connected to the valve frame, one end of the cover plate fits together with the outer periphery of the support plate and one side of the support plate is a slope structure.

[0015] Beneficial effects of the present invention: 1. The present invention further improves the sealing between the valve leaf and the valve frame through the sealing plate, and eliminates direct contact between the valve leaf and the valve frame. After ice formation occurs, the inertial impact force generated by the vibrating de-icing assembly is transmitted to the sealing plate, and then the ice shell on its surface is shattered by the sealing plate, thereby separating the valve leaf and the valve frame from each other, enabling them to work normally and achieve the effect of rapid de-icing.

[0016] 2. During vibration de-icing, the present invention converts vibration into horizontal impact through the horizontal movement of the sealing plate, further improving the ice shell crushing effect, and pushing the crushed ice shell away from the joint between the valve leaf and the valve frame, so that the valve leaf and the valve frame are separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention Figure 1 .

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention Figure 2 .

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention Figure 3 .

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention Figure 4 .

[0022] Figure 5 It is a schematic diagram of the valve frame structure of the present invention.

[0023] Figure 6 yes Figure 1 A magnified view of the structure at point A in the middle.

[0024] Figure 7 yes Figure 2 A magnified view of the structure at point A in the middle.

[0025] Figure 8 It is a structural schematic diagram of the synchronous drive component of the present invention.

[0026] Figure 9 It is a cross-sectional view of the valve leaf structure of the present invention.

[0027] Figure 10 yes Figure 9 A magnified view of the structure at point A in the middle.

[0028] Figure 11 This is a structural breakdown diagram of the vibration deicing assembly of the present invention.

[0029] Figure 12 It is a schematic structural diagram of the blade surface ice sweeping assembly of the present invention.

[0030] In the picture: 1. Valve frame; 10. Empty slot; 11. Valve leaf; 110. Clamping slot; 12. Sealing plate; 13. Sealing strip; 14. Frame; 2. Vibrating de-icing assembly; 20. Rotating shaft; 21. Spur gear; 22. First torsion spring; 23. Bump; 24. Knocking block; 25. Round rod; 26. Tension spring; 3. Synchronous drive assembly; 30. Missing gear; 31. Connecting rod; 32. Support shaft; 33. Pulley; 34. Long rod; 35. Bevel gear; 36. Motor; 37. Transmission shaft; 370. Long slot; 38. Idle mechanism; 380. Block; 381. Spring; 4. Blade ice sweeping assembly; 40. Bracket; 41. First hydraulic rod; 42. Support plate; 43. Mounting plate; 430. Motor; 431. Cleaning roller; 44. Slide rail; 45. Electric slider; 46. Second hydraulic rod; 47. Cover plate; 48. L-shaped rod; 49. Second torsion spring. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inside", "outside" and the like indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] In the description of the present invention, unless otherwise expressly specified or limited, when the term "connection" or the like appears to indicate a connection relationship between components, such term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be internal communication between two components or an interaction between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0035] like Figures 1 to 11 As shown: An antifreeze type combined air valve includes a valve frame 1, which is a hollow frame structure. Multiple valve frames 1 are fixed by bolts and can be connected to each other to form a combined air valve. It also includes multiple valve leaves 11, multiple pairs of sealing plates 12, multiple vibration de-icing components 2, a synchronous drive component 3 and a pair of blade surface ice sweeping components 4. The valve leaves 11 can be installed vertically rotatably in the valve frame 1. The multiple valve leaves 11 are arranged in a vertical interval, and two adjacent valve leaves 11 fit together. The top and bottom walls of the valve frame 1 are fixedly connected with sealing strips 13. The two sealing strips 13 fit together with the top of the top valve leaf 11 and the bottom of the bottom valve leaf 11 respectively. The sealing strips 13 are used to cooperate with the valve leaves 11 to ensure the sealing of the air valve. The rotation of the multiple valve leaves 11 is simultaneously controlled by the synchronous drive component 3 to adjust their angles, thereby controlling the opening and closing of the air valve and the amount of air flow. Multiple pairs of sealing plates 12 are respectively located at both ends of the valve leaf 11. The sealing plates 12 are movably mounted on the valve leaf 11 through the vibration de-icing assembly 2. One end of the sealing plate 12 is in contact with the valve leaf 11, and the other end of the sealing plate 12 is in contact with the inner wall of the valve frame 1. The synchronous drive assembly 3 and the blade surface ice-sweeping assembly 4 are both mounted on the valve frame 1. The synchronous drive assembly 3 is used to drive the valve leaf 11 to rotate, and the blade surface ice-sweeping assembly 4 is used to sweep away the ice shell on both sides of the valve leaf 11. The sealing plates 12 further improve the sealing between the valve leaf 11 and the valve frame 1, and make the valve leaf 11 no longer in direct contact with the valve frame 1. After ice formation occurs, the inertial impact force generated by the vibration de-icing assembly 2 is transmitted to the sealing plate 12, and then the ice shell on its surface is shattered by the sealing plate 12, thereby separating the valve leaf 11 from the valve frame 1, allowing it to work normally and achieve the effect of rapid de-icing.

[0036] like Figures 1 to 11 As shown: The vibration de-icing assembly 2 includes a rotating shaft 20, a spur gear 21, a first torsion spring 22, a protrusion 23 and a knocking block 24. The rotating shaft 20 passes through the inner wall of the valve frame 1 and is rotatably connected thereto. One end of the rotating shaft 20 is rotatably connected to the valve leaf 11. One end of the spur gear 21 passes through the side wall of the other end of the rotating shaft 20 and is rotatably connected thereto. The first torsion spring 22 is sleeved on the outer periphery of the spur gear 21. One end of the first torsion spring 22 is fixedly connected to the spur gear 21. The other end of the first torsion spring 22 is fixedly connected to the inner wall of the rotating shaft 20. The protrusion 23 is fixedly connected to one side of the rotating shaft 20. The knocking block 24 is fixedly connected to the eccentric part of one end of the spur gear 21. The knocking block 24 and the protrusion 23 conflict with each other. The synchronous drive assembly 3 includes a pair of missing gears 30. The missing gears 30 can be vertically rotatably installed in the valve frame 1. The two missing gears 30 are respectively engaged with the spur gears 21 at both ends of the bottom valve leaf 11.

[0037] The vibration de-icing assembly 2 also includes a pair of round rods 25 and two pairs of tension springs 26. The round rods 25 are fixedly connected to the inner wall of the valve leaf 11. A pair of sealing plates 12 are symmetrically arranged on both sides of the rotating shaft 20 and combined into an annular structure. The outer periphery of one end of the rotating shaft 20 is a square structure and conflicts with the inner wall of the sealing plate 12. The two ends of the round rod 25 pass through the two sealing plates 12 respectively and are slidably connected to them. The tension spring 26 is sleeved on the outer periphery of the round rod 25. One end of the tension spring 26 is fixedly connected to the sealing plate 12, and the other end of the tension spring 26 is fixedly connected to the inner wall of the valve leaf 11.

[0038] The synchronous drive assembly 3 also includes multiple pairs of connecting rods 31, a pair of support shafts 32, two pairs of pulleys 33, a long rod 34, a pair of bevel gears 35 and a motor 36. A pair of connecting rods 31 are respectively located at both ends of the valve leaf 11. The top and bottom of the connecting rod 31 are respectively rotatably connected to the eccentric position of one end of the two adjacent spur gears 21. The two pairs of pulleys 33 are respectively located at both ends of the valve frame 1. A belt is used to transmit the power between the pair of pulleys 33. The two support shafts 32 are respectively located at both ends of the valve frame 1. The support shafts 32 are rotatably connected to the inner wall of the valve frame 1. The support shaft 32 passes through the missing gear 30 and the two pulleys 33 at the top and is coaxially connected thereto. The long rod 34 is rotatably installed at the bottom of the valve frame 1. The two ends of the long rod 34 are coaxially connected to the two pulleys 33 at the bottom. One of the bevel gears 35 is coaxially connected to the outer periphery of the long rod 34. The two bevel gears 35 are meshed with each other. The bottom of one side of the valve frame 1 is fixedly connected to the frame 14, and the top of the frame 14 is fixedly connected to the bottom of the motor 36. The output shaft of the motor 36 passes through the side wall of the valve frame 1 and is coaxially connected to another bevel gear 35.

[0039] The synchronous drive assembly 3 also includes multiple transmission shafts 37 and multiple pairs of idling mechanisms 38. The transmission shafts 37 are respectively located in the valve leaf 11 and their two ends are coaxially connected to the two rotating shafts 20. A pair of idling mechanisms 38 are symmetrically arranged at both ends of the transmission shaft 37. The idling mechanism 38 includes a clamping block 380 and a pair of springs 381. One end of the spring 381 is fixedly connected to one side of the clamping block 380. The clamping block 380 is circumferentially arranged on the periphery of the transmission shaft 37. A plurality of long grooves 370 are opened on the periphery of the transmission shaft 37. The long grooves 370 are slidably connected to the clamping block 380. The other end of the spring 381 is fixedly connected to the inner wall of the long groove 370. A plurality of clamping grooves 110 are opened inside the valve leaf 11. The clamping grooves 110 and the other side of the clamping block 380 are clamped to each other. When the motor 36 is powered on, its output shaft rotates one of the bevel gears 35. The meshing transmission between the two bevel gears 35 causes the other bevel gear 35 and the long rod 34 to rotate, which in turn drives the pulley 33 at the bottom. The belt transmission between the other pulleys 33 then causes the support shaft 32 to rotate the missing gear 30. The meshing transmission between the missing gear 30 and the spur gear 21 also drives the spur gear 21. Under normal operating conditions, the force of the first torsion spring 22 causes the spur gear 21 to rotate coaxially with the rotating shaft 20, thereby driving the transmission shaft 37 to rotate. At this time, the valve leaf 11 can rotate normally, and the idler mechanism 38 does not operate, allowing the valve leaf 11 to follow the transmission shaft 37, thereby achieving the effect of opening and closing the damper.

[0040] When icing occurs, the missing gear 30 rotates to rotate the spur gear 21, but at this time the valve leaf 11 is fixed by the ice shell and cannot rotate, and the idling mechanism 38 has a large resistance so that the rotating shaft 20 is fixed, and relative rotation occurs between the rotating shaft 20 and the spur gear 21, so that the knocking block 24 is separated from the protrusion 23. As the missing gear 30 continues to rotate, the first torsion spring 22 is twisted. When the missing gear 30 and the spur gear 21 rotate to separation, the first torsion spring 22 rebounds instantly, driving the spur gear 21 to rotate, and causing the knocking block 24 to quickly hit the protrusion 23, thereby generating vibration, and the inertia generated by the vibration is transmitted to the sealing plate 12 through the rotating shaft 20, and the ice shell between the valve leaf 11 and the valve frame 1 is shattered through the sealing plate 12, so that the sealing plate 12 can move. Then the rotating shaft 20 rotates slightly following the spur gear 21, and as the rotating shaft 20 rotates, the square structure at one end thereof pushes the two sealing plates 12 that fit together to move away from each other. The sealing plates 12 slide along the periphery of the round rod 25, and the tension spring 26 is stretched and then rebounds, driving the two sealing plates 12 to move away from each other and then reset, thereby converting the vibration into a horizontal impact, further enhancing the ice shell crushing effect, and pushing the crushed ice shell away from the joint between the valve leaf 11 and the valve frame 1, so that the valve leaf 11 is separated from the valve frame 1.

[0041] When the vibration de-icing assembly 2 is working, the valve leaf 11 is in a stationary state. As the rotating shaft 20 rotates, the transmission shaft 37 rotates inside the valve leaf 11. The transmission shaft 37 drives the clamping block 380 to move and separate from the clamping slot 110. The spring 381 is first compressed and then rebounds, so that the clamping block 380 is clamped into another clamping slot 110 as the transmission shaft 37 rotates, achieving idling. This makes the working state of the vibration de-icing assembly 2 not limited by the angle of the valve leaf 11, thereby improving the anti-freeze effect of the combined air valve. When the valve leaf 11 rotates, the clamping block 380 and the clamping slot 110 are mutually engaged, so that the transmission shaft 37 and the valve leaf 11 can rotate coaxially.

[0042] like Figures 1 to 12 As shown: The two blade surface ice sweeping assemblies 4 are respectively located at the top of one side of the valve frame 1 and the bottom of the other side and are arranged symmetrically. The blade surface ice sweeping assembly 4 includes a bracket 40, a first hydraulic rod 41, a support plate 42, a mounting plate 43, a motor 430 and a cleaning roller 431. The bracket 40 can be installed on the valve frame 1 for horizontal movement. One end of the first hydraulic rod 41 is rotatably connected to the inner wall of the bracket 40. The telescopic end of the first hydraulic rod 41 is rotatably connected to the inner wall of one end of the support plate 42. The middle part of the support plate 42 is rotatably connected to the inner wall of the other end of the bracket 40. Dynamic connection, the mounting plate 43 can be vertically movably installed at the bottom of the other end of the support plate 42, one side of the motor 430 is fixedly connected to the mounting plate 43, the output shaft of the motor 430 passes through the mounting plate 43 and is coaxially connected to the cleaning roller 431, when the support plate 42 is in a vertical state, one side of the mounting plate 43 fits against the inner wall of the valve frame 1, and the cleaning roller 431 is separated from the valve leaf 11; when the support plate 42 is in a horizontal state, the mounting plate 43 is separated from the valve frame 1, and one side of the cleaning roller 431 conflicts with the valve leaf 11.

[0043] The blade ice-clearing assembly 4 also includes a slide rail 44, an electric slider 45 and a second hydraulic rod 46. The two slide rails 44 are fixedly connected to the top and bottom of the valve frame 1 respectively, the electric slider 45 is slidably connected to the periphery of the slide rail 44, the electric slider 45 is fixedly connected to the bracket 40, the top of the second hydraulic rod 46 is fixedly connected to the bottom of the end of the support plate 42 away from the first hydraulic rod 41, and the telescopic end of the second hydraulic rod 46 is fixedly connected to the top of the mounting plate 43.

[0044] The blade ice sweeping assembly 4 also includes a pair of cover plates 47, two pairs of L-shaped rods 48 and a plurality of second torsion springs 49. One end of the two pairs of L-shaped rods 48 are fixedly connected to the two cover plates 47 respectively. The top wall and the bottom of the valve frame 1 are provided with empty grooves 10. The cover plates 47 are in contact with the inner walls of the empty grooves 10. The other end of the L-shaped rod 48 is rotatably connected to the valve frame 1. The second torsion spring 49 is sleeved on the outer periphery of one end of the L-shaped rod 48. One end of the second torsion spring 49 is fixedly connected to the L-shaped rod 48. The other end of the second torsion spring 49 is fixedly connected to the valve frame 1. One end of the cover plate 47 is in contact with the outer periphery of the support plate 42 and one side of the support plate 42 is a slope structure. When the ice shell between the valve leaf 11 and the valve frame 1 is removed, the valve leaf 11 is rotated to a vertical state, and the first hydraulic rod 41 is operated. As the first hydraulic rod 41 shortens, the middle part of the support plate 42 is pulled to rotate around one end of the bracket 40, so that the support plate 42 rotates from a vertical state to a horizontal state. At the same time, the inclined surface on one side of the support plate 42 pushes the cover plate 47 to rotate, and the second torsion spring 49 is twisted, so that the empty slot 10 is opened to facilitate the passage of the support plate 42, thereby rotating the cleaning roller 431 to fit the valve leaf 11. Then, the motor 430 is energized to work, and its output shaft drives the cleaning roller 431 to rotate, and at the same time, the electric slider 45 and the second hydraulic rod 46 are operated. The electric slider 45 drives the bracket 40 to move horizontally along the slide rail 44, and the second hydraulic rod 46 pushes the mounting plate 43 to adjust the height of the cleaning roller 431, thereby further comprehensively cleaning the ice shell at different positions on the surface of the valve leaf 11, thereby improving the antifreeze effect.

[0045] On the contrary, the electric slider 45 drives the bracket 40 to reset, the first hydraulic rod 41 extends, and the support plate 42 is pushed to rotate to a vertical state. The second torsion spring 49 rotates, driving the cover plate 47 to block the empty slot 10 to ensure the sealing of the air valve, and at the same time, the cleaning roller 431 is moved away from the valve leaf 11 and retracted to fit the inner wall of the valve frame 1 to avoid obstructing the normal operation of the valve leaf 11.

[0046] It should be noted that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that various modifications, equivalent substitutions, and variations may be made to the present invention. However, as long as these modifications do not depart from the spirit of the present invention, they are intended to be within the scope of protection of the present invention. Furthermore, certain terms used in the specification and claims of this application are not intended to be limiting; they are intended solely to facilitate a clear description of the positional relationships and functions of various components.

Claims

1. An antifreeze type combined air valve, comprising a valve frame (1), the valve frame (1) being a hollow frame structure, characterized in that: The valve frame (1) further comprises a plurality of valve leaves (11), a plurality of pairs of sealing plates (12), a plurality of vibration de-icing assemblies (2), a synchronous drive assembly (3) and a pair of blade surface ice sweeping assemblies (4). The valve leaves (11) are vertically rotatably installed in the valve frame (1). The plurality of valve leaves (11) are arranged vertically at intervals, and two adjacent valve leaves (11) fit together. The top wall and the bottom wall of the valve frame (1) are fixedly connected with sealing strips (13), and the two sealing strips (13) fit together with the top of the top valve leaf (11) and the bottom of the bottom valve leaf (11) respectively. , multiple pairs of sealing plates (12) are respectively located at both ends of the valve leaf (11), the sealing plates (12) are movably installed on the valve leaf (11) through the vibration de-icing assembly (2), one end of the sealing plate (12) is in contact with the valve leaf (11), and the other end of the sealing plate (12) is in contact with the inner wall of the valve frame (1), the synchronous drive assembly (3) and the blade surface ice sweeping assembly (4) are both installed on the valve frame (1), the synchronous drive assembly (3) is used to drive the valve leaf (11) to rotate, and the blade surface ice sweeping assembly (4) is used to sweep away the ice shell on both sides of the valve leaf (11).

2. The antifreeze type combined air valve according to claim 1, characterized in that: The vibration de-icing assembly (2) includes a rotating shaft (20), a spur gear (21), a first torsion spring (22), a protrusion (23) and a knocking block (24), wherein the rotating shaft (20) passes through the inner wall of the valve frame (1) and is rotatably connected thereto, one end of the rotating shaft (20) is rotatably connected to the valve leaf (11), one end of the spur gear (21) passes through the side wall of the other end of the rotating shaft (20) and is rotatably connected thereto, the first torsion spring (22) is sleeved on the outer periphery of the spur gear (21), and one end of the first torsion spring (22) is fixedly connected to the spur gear (21). The other end of the first torsion spring (22) is fixedly connected to the inner wall of the rotating shaft (20), the protrusion (23) is fixedly connected to one side of the rotating shaft (20), the knocking block (24) is fixedly connected to the eccentric part of one end of the spur gear (21), the knocking block (24) and the protrusion (23) are in conflict with each other, and the synchronous drive assembly (3) includes a pair of missing gears (30), the missing gears (30) are vertically rotatably installed in the valve frame (1), and the two missing gears (30) are respectively engaged with the spur gears (21) at both ends of the bottom valve leaf (11).

3. The antifreeze type combined air valve according to claim 2, characterized in that: The vibration deicing assembly (2) further includes a pair of round rods (25) and two pairs of tension springs (26), wherein the round rods (25) are fixedly connected to the inner wall of the valve leaf (11), a pair of sealing plates (12) are symmetrically arranged on both sides of the rotating shaft (20) and are combined into a ring structure, the outer periphery of one end of the rotating shaft (20) is a square structure and contacts the inner wall of the sealing plate (12), the two ends of the round rod (25) respectively pass through the two sealing plates (12) and are slidably connected thereto, the tension spring (26) is sleeved on the outer periphery of the round rod (25), one end of the tension spring (26) is fixedly connected to the sealing plate (12), and the other end of the tension spring (26) is fixedly connected to the inner wall of the valve leaf (11).

4. The antifreeze type combined air valve according to claim 3, characterized in that: The synchronous drive assembly (3) further includes a plurality of pairs of connecting rods (31), a pair of supporting shafts (32), two pairs of pulleys (33), a long rod (34), a pair of bevel gears (35) and a motor (36), wherein the pair of connecting rods (31) are respectively located at both ends of the valve leaf (11), the top and bottom of the connecting rods (31) are respectively rotatably connected to the eccentric positions of one end of two adjacent spur gears (21), the two pairs of pulleys (33) are respectively located at both ends of the valve frame (1), a belt transmission is used between the pair of pulleys (33), the two supporting shafts (32) are respectively located at both ends of the valve frame (1), and the supporting shafts (32) are rotatably connected to the inner wall of the valve frame (1). The support shaft (32) passes through the missing gear (30) and the two pulleys (33) at the top and is coaxially connected thereto. The long rod (34) is rotatably mounted on the bottom of the valve frame (1). The two ends of the long rod (34) are coaxially connected to the two pulleys (33) at the bottom. One of the bevel gears (35) is coaxially connected to the periphery of the long rod (34). The two bevel gears (35) are meshed with each other. The bottom of one side of the valve frame (1) is fixedly connected to a frame (14). The top of the frame (14) is fixedly connected to the bottom of the motor (36). The output shaft of the motor (36) passes through the side wall of the valve frame (1) and is coaxially connected to another bevel gear (35).

5. The antifreeze type combined air valve according to claim 3, characterized in that: The synchronous drive assembly (3) further includes a plurality of transmission shafts (37) and a plurality of pairs of idling mechanisms (38), wherein the transmission shafts (37) are respectively located in the valve leaf (11) and the two ends are respectively coaxially connected to the two rotating shafts (20), and the pair of idling mechanisms (38) are symmetrically arranged at the two ends of the transmission shaft (37). The idling mechanism (38) includes a clamping block (380) and a pair of springs (381), one end of the spring (381) is fixedly connected to one side of the clamping block (380), and the clamping block (380) is circumferentially arranged on the periphery of the transmission shaft (37). The periphery of the transmission shaft (37) is provided with a plurality of long grooves (370), the long grooves (370) are slidably connected to the clamping block (380), and the other end of the spring (381) is fixedly connected to the inner wall of the long groove (370). The interior of the valve leaf (11) is provided with a plurality of clamping grooves (110), and the clamping grooves (110) and the other side of the clamping block (380) are clamped to each other.

6. The antifreeze type combined air valve according to claim 1, characterized in that: The two blade surface ice sweeping assemblies (4) are respectively located at the top of one side and the bottom of the other side of the valve frame (1) and are arranged in a central symmetrical manner. The blade surface ice sweeping assembly (4) includes a bracket (40), a first hydraulic rod (41), a support plate (42), a mounting plate (43), a motor (430) and a cleaning roller (431). The bracket (40) is horizontally movably mounted on the valve frame (1). One end of the first hydraulic rod (41) is rotatably connected to the inner wall of the bracket (40). The telescopic end of the first hydraulic rod (41) is rotatably connected to the inner wall of one end of the support plate (42). The middle of the support plate (42) is rotatably connected to the inner wall of the other end of the bracket (40). The mounting plate (43) is vertically movably mounted on the bottom of the other end of the support plate (42). One side of the motor (430) is fixedly connected to the mounting plate (43). The output shaft of the motor (430) passes through the mounting plate (43) and is coaxially connected to the cleaning roller (431). When the support plate (42) is in a vertical state, one side of the mounting plate (43) is in contact with the inner wall of the valve frame (1), and the cleaning roller (431) is separated from the valve leaf (11); When the support plate (42) is in a horizontal state, the mounting plate (43) is separated from the valve frame (1), and one side of the cleaning roller (431) contacts the valve leaf (11).

7. The antifreeze type combined air valve according to claim 6, characterized in that: The blade surface ice sweeping assembly (4) further includes a slide rail (44), an electric slider (45) and a second hydraulic rod (46), wherein the two slide rails (44) are fixedly connected to the top and bottom of the valve frame (1), respectively, the electric slider (45) is slidably connected to the periphery of the slide rail (44), the electric slider (45) is fixedly connected to the bracket (40), the top of the second hydraulic rod (46) is fixedly connected to the bottom of one end of the support plate (42) away from the first hydraulic rod (41), and the telescopic end of the second hydraulic rod (46) is fixedly connected to the top of the mounting plate (43).

8. The antifreeze type combined air valve according to claim 7, characterized in that: The blade surface ice sweeping assembly (4) further includes a pair of cover plates (47), two pairs of L-shaped rods (48) and a plurality of second torsion springs (49), one end of the two pairs of L-shaped rods (48) are fixedly connected to the two cover plates (47), the top wall and the bottom of the valve frame (1) are both provided with empty grooves (10), the cover plates (47) and the inner walls of the empty grooves (10) fit together, the other end of the L-shaped rods (48) is rotatably connected to the valve frame (1), the second torsion springs (49) are sleeved on the periphery of one end of the L-shaped rods (48), one end of the second torsion springs (49) is fixedly connected to the L-shaped rods (48), the other end of the second torsion springs (49) is fixedly connected to the valve frame (1), one end of the cover plate (47) fits together with the periphery of the support plate (42), and one side of the support plate (42) is a sloped structure.

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