A heating system for combined air valve

Abstract

The present invention relates to the technical field of air valves, and in particular to a heating system for a combined air valve, comprising a valve frame, and also comprising a plurality of valve plates, a snap plate, a pair of scrapers, a flip assembly, a driving assembly and an ice-removing assembly. The valve plate can be vertically rotatably installed in the valve frame through the flip assembly, and the plurality of valve plates can be snap-fitted with each other. Both the top wall and the bottom wall of the valve frame are provided with empty grooves, the snap plate is rotatably connected to the inner wall of the empty groove at the top, the bottom of the snap plate is a hook-shaped structure and can be plug-fitted with the valve plate, the empty groove at the bottom can be snap-fitted with the valve plate, the valve plate is a hollow elliptical structure and is elastic. In order to quickly de-ice without damaging the valve plate, the present invention slightly expands the valve plate by squeezing when closing the valve plate, and then contracts when opening the valve plate to create a gap between the valve plate and the ice shell, and then scrapes off the ice shell by the scraper, cooperates with the heating pipe to quickly de-ice, and avoids damage to the valve plate during de-icing, thereby extending the service life of the air valve.

Description

Technical Field

[0001] The invention relates to the technical field of air valves, and in particular to a heating system for a combined air valve. Background Art

[0002] The damper is a device used in ventilation, air conditioning and industrial piping systems to control and regulate the flow of air or gas. The combined damper is a large ventilation device composed of multiple single dampers. It is commonly used in subway ventilation and air conditioning systems and industrial plant ventilation systems.

[0003] Since the air conditioning and ventilation system is usually close to the fire protection system and water supply system, the air humidity in the working environment of the damper is high. Even after the equipment has been working for a long time and aged, water leakage from the water pipe will drip onto the damper. In the low temperature environment in winter, it is necessary to cooperate with the heating system to heat the valve plate of the damper to prevent the surface of the valve plate from forming an ice crust, which will hinder the rotation of the valve plate and affect the normal operation of the combined damper.

[0004] At present, most of the common combined damper heating systems release heat through the heating pipe to heat the surrounding air, and then blow the hot air to the valve plate surface through the blower or natural wind to achieve the heating effect. The advantages of this solution are simple structure and certain heating effect, but the disadvantage is low deicing efficiency. Once the temperature drops below zero, in order to ensure the normal operation of the damper, the heating system needs to work continuously to maintain the temperature of the valve plate surface to prevent ice formation, resulting in a surge in the operating cost of the air conditioning and ventilation system in winter.

[0005] There is also a combined air valve heating system in the prior art, in which a knocking mechanism is provided on the air valve, which quickly breaks the ice shell by impact and removes ice in cooperation with the heating pipe. The advantage of this solution is that it can quickly remove ice, but since the valve plate structure is relatively thin, the knocking mechanism is likely to damage the valve plate when hitting the ice shell, resulting in a shortened working life of the air valve, which still increases the use cost of the air conditioning and ventilation system, and therefore needs to be improved. Summary of the invention

[0006] The object of the present invention is to provide a heating system for a combined air valve, which can quickly remove ice without damaging the valve plate and extend the service life of the air valve.

[0007] To achieve this object, the present invention adopts the following technical solutions: A heating system for a combined air valve is provided, comprising a valve frame, and also comprising multiple valve plates, a snap plate, a pair of scrapers, a flip assembly, a drive assembly and a de-icing assembly. The valve plate can be vertically rotatably installed in the valve frame through the flip assembly, and the multiple valve plates can be snap-fitted with each other. The top wall and the bottom wall of the valve frame are both provided with empty grooves, and the snap plate is rotatably connected to the inner wall of the top empty groove. The bottom of the snap plate is a hook-shaped structure and can be plug-fitted with the valve plate, and the empty groove at the bottom can be snap-fitted with the valve plate. The valve plate is a hollow elliptical structure and is elastic. The scraper can be horizontally slidably installed on the valve frame through the de-icing assembly, and the scraper fits against the side wall of the valve plate. The drive assembly is installed on the valve frame, and the drive assembly is used to drive the valve plate and the snap plate to rotate.

[0008] Preferably, the flip assembly includes multiple pairs of cams, which are used to support the rotation of the valve plate. The driving assembly includes a motor, a pair of sprockets and a rotating shaft. One end of the motor is fixedly connected to the valve frame, and the output shaft of the motor passes through the side wall of the valve frame and is coaxially connected to one of the cams, one of the sprockets is coaxially connected to the outer periphery of the cam, and the other sprocket is coaxially connected to the outer periphery of the rotating shaft. The two sprockets are driven by a chain, and the rotating shaft is used to drive the snap plate to rotate. The de-icing assembly includes a locking mechanism, which is installed on the scraper, and the locking mechanism is used to fix the position of the scraper; when the valve plate is in a horizontal state, the snap plate is located in the empty groove and can be ventilated; when the valve plate is in a vertical state, the bottom of the snap plate and the top of the valve plate are in contact with each other, and the valve plate is in an expanded state, which can increase the volume of the valve plate and increase the sealing performance; when the bottom of the snap plate rotates and separates from the valve plate, the locking mechanism is in an unlocked state, and the scraper can move horizontally for de-icing.

[0009] Preferably, the valve plate includes a plate body and multiple rebound mechanisms. The plate body is rotatably connected to the inner wall of the valve frame. A groove is provided on the top of the plate body. Two adjacent plate bodies are snap-fitted with each other through the groove. The bottom of the snap plate is plug-fitted with the groove. The bottom of the plate body is snap-fitted with the empty groove at the bottom. The rebound mechanism is installed in the plate body, and the rebound mechanism is used to ensure the elasticity of the plate body.

[0010] Preferably, the rebound mechanism includes a pair of cylinders, a pair of first tension springs and two pairs of pull rings. The two cylinders are cross-arranged and rotatably connected in the middle. The cylinders are sleeved around the first tension springs. The two ends of the first tension springs are respectively fixedly connected to the two pull rings, and the pull rings are respectively fixedly connected to the top and bottom of the inner walls on both sides of the plate body.

[0011] Preferably, one end of the convex shaft passes through the valve frame and is coaxially connected to the plate body. The flip assembly also includes multiple pairs of connecting rods, which are located between two adjacent valve plates. One end of the connecting rod is rotatably connected to an eccentric point on one side of the convex shaft at the top, and the other end of the connecting rod is rotatably connected to an eccentric point on the other side of the convex shaft at the bottom.

[0012] Preferably, a pair of slide grooves are provided at the top and bottom of the valve frame, and the de-icing assembly also includes two pairs of sliders, a connecting plate, two pairs of second tension springs and a hydraulic rod. The top and bottom of the scraper are respectively fixedly connected to the two sliders, the slider is slidably connected to the slide groove, one end of the second tension spring is fixedly connected to the inner wall of the slide groove, and the other end of the second tension spring is fixedly connected to the slider. Both sides of the bottom of the connecting plate respectively pass through the top wall of the valve frame and are fixedly connected to the two sliders, one end of the hydraulic rod is fixedly connected to the end of the top of the valve frame away from the motor, and the telescopic end of the hydraulic rod is in conflict with the connecting plate.

[0013] Preferably, the locking mechanism includes a card block and a pair of first springs, one end of the card block passes through the connecting plate and is slidably connected thereto, one end of the first spring is fixedly connected to the top of the connecting plate, the other end of the first spring is fixedly connected to the top of the card block, a penetrating card slot is provided at the top of the valve frame, and the bottom of the card block is engaged with the card slot.

[0014] Preferably, the drive assembly also includes a rack, a guide rod, a fixing ring, teeth and a pair of second springs, the top of the guide rod is fixedly connected to the top wall of the valve frame, the bottom of the guide rod passes through the rack and is slidably connected to the rack, the top of the rack is plug-in-fitted with the slot, the fixing ring is coaxially connected to the periphery of the rotating shaft, a square groove is opened on one side of the fixing ring, one side of the teeth is slidably connected to the square groove, one end of the second spring is fixedly connected to the inner wall of the square groove, and the other end of the second spring is fixedly connected to the teeth; when the bottom of the snap plate and the bottom wall of the groove are in conflict with each other, the teeth mesh with the rack, the top of the rack is separated from the empty groove, and the locking mechanism is in a locked state; when the bottom of the snap plate and the bottom wall of the groove are separated from each other and located in the groove, the top of the rack and the bottom of the block are in conflict with each other, and the locking mechanism is unlocked as the rotating shaft rotates; when the snap plate is located in the empty groove and separated from the valve plate, the teeth are separated from the rack, and the locking mechanism is in a locked state.

[0015] Preferably, a plurality of long grooves are provided on the side of the scraper away from the valve plate, and the de-icing assembly also includes a plurality of ice blades and a plurality of torsion springs, one end of the ice blade is rotatably connected to the inner wall of the long groove, the torsion spring is sleeved on the outer periphery of one end of the ice blade, one end of the torsion spring is fixedly connected to the inner wall of the long groove, the other end of the torsion spring is fixedly connected to the ice blade, and one side of the ice blade is in conflict with the inner wall of the valve frame.

[0016] Preferably, both sides of the bottom wall of the valve frame are inclined structures, a pair of heating tubes are fixedly connected to the bottom of the valve frame, the two heating tubes are symmetrically arranged on both sides of the valve frame, and a protective plate is fixedly connected to one side of the valve frame.

[0017] Beneficial effects of the present invention: 1. When the air valve is closed, the two adjacent valve plates of the present invention are mutually abutted and clamped, and the valve plates are squeezed by the buckle plate, and the middle of the valve plates slightly expands to both sides, thereby increasing the volume of the valve plates and improving the sealing between the valve plates and between the valve plates and the valve frame. When the valve plate is opened after the surface of the valve plate is frozen, the buckle plate rotates in the opposite direction, and the valve plate rebounds and contracts, so that a gap is generated between its surface and the ice shell. Subsequently, the deicing component drives the scraper to horizontally pass through the gap to scrape off the ice shell, and then cooperates with the heating tube to melt the crushed ice, thereby quickly deicing while avoiding damage to the valve plate and extending the service life of the air valve.

[0018] 2. The locking mechanism provided in the present invention can fix the scraper and automatically unlock when the valve plate needs to be opened, so that the scraper can be translated along the valve plate for de-icing. The structure is simple and easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order 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, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0022] Figure 3 It is a three-dimensional structure exploded diagram of the present invention.

[0023] Figure 4 It is a schematic diagram of the valve frame structure of the present invention.

[0024] Figure 5 It is a cross-sectional view of the valve frame structure of the present invention.

[0025] Figure 6 It is a disassembled diagram of the flip assembly structure of the present invention.

[0026] Figure 7 It is a side view of the valve plate structure of the present invention.

[0027] Figure 8 It is a cross-sectional view of the valve plate structure of the present invention.

[0028] Fig. 9 yes Figure 5 A magnified view of the structure at center.

[0029] Fig.10It is a schematic diagram of the locking mechanism structure of the present invention.

[0030] Fig.11 It is a disassembled diagram of the drive component structure of the present invention.

[0031] Fig.12 It is a cross-sectional view of the scraper structure of the present invention.

[0032] In the figure: 1. Valve frame; 10. Empty slot; 11. Slide slot; 12. Clamping slot; 13. Valve plate; 130. Plate body; 131. Groove; 14. Snap plate; 15. Scraper; 150. Long slot; 16. Heating tube; 17. Protective plate; 2. Flip assembly; 20. Cam shaft; 21. Connecting rod; 3. driving assembly; 30. motor; 31. sprocket; 32. rotating shaft; 33. rack; 34. guide rod; 35. fixing ring; 350. square groove; 36. teeth; 37. second spring; 4. De-icing assembly; 40. Locking mechanism; 400. Block; 401. First spring; 41. Sliding block; 42. Connecting plate; 43. Second tension spring; 44. Hydraulic rod; 45. Ice blade; 46. Torsion spring; 5. Rebound mechanism; 50. Cylinder; 51. First tension spring; 52. Pull ring. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on 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.

[0035] 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", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated 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 a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the 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 the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 12 As shown: A heating system for a combined air valve comprises a valve frame 1, which is used to support a plurality of valve plates 13 and plays a role in controlling the air path. It also comprises a plurality of valve plates 13, a snap plate 14, a pair of scrapers 15, a flip assembly 2, a drive assembly 3 and an ice removal assembly 4. The valve plates 13 can be vertically rotatably installed in the valve frame 1 through the flip assembly 2. The plurality of valve plates 13 can be mutually snap-fitted. The top wall and the bottom wall of the valve frame 1 are both provided with empty grooves 10. The snap plate 14 is rotatably connected with the inner wall of the top empty groove 10. The bottom of the snap plate 14 is a hook-shaped structure and can be plugged and matched with the valve plate 13. The empty groove 10 at the bottom can be snap-fitted with the valve plate 13. The valve plate 13 is a hollow elliptical structure and has elasticity. The scraper 15 can be horizontally slidably installed on the valve frame 1 through the ice removal assembly 4. The scraper 15 fits the side wall of the valve plate 13. The drive assembly 3 is installed on the valve frame 1. The drive assembly 3 is used to drive the valve plate 13 and the snap plate 14 to rotate. When the air valve is closed, the valve plate 13 is driven to rotate by the driving component 3, and the two valve plates 13 rotate in opposite directions. As the valve plate 13 rotates to vertical, the two adjacent valve plates 13 are mutually abutted and clamped. At the same time, the bottom of the snap plate 14 rotates to vertical and is inserted into the groove 131 on the top valve plate 13. As the snap plate 14 continues to rotate at a slight angle, its bottom presses the valve plate 13 downward. Since the valve plate 13 is a hollow elliptical structure and is elastic, the middle part of the valve plate 13 expands slightly to both sides, which increases the volume of the valve plate 13 and increases the sealing between the valve plates 13 and between the valve plate 13 and the valve frame 1. When ice forms, the ice shell covers the surface of the valve plate 13, and then the snap plate 14 rotates in the opposite direction, the valve plate 13 rebounds and contracts, so that a gap is formed between its surface and the ice shell. Then the de-icing component 4 drives the scraper 15 to horizontally pass through the gap to scrape off the ice shell, and then continues to rotate to smoothly open the valve plate 13, thereby quickly removing ice while avoiding damage to the valve plate 13, thereby extending the service life of the air valve.

[0038] like Figures 1 to 10 As shown: The flip assembly 2 includes multiple pairs of cam shafts 20, which are used to support the valve plate 13 to rotate. The driving assembly 3 includes a motor 30, a pair of sprockets 31 and a rotating shaft 32. One end of the motor 30 is fixedly connected to the valve frame 1, and the output shaft of the motor 30 passes through the side wall of the valve frame 1 and is coaxially connected to one of the cam shafts 20, one of the sprockets 31 is coaxially connected to the outer periphery of the cam shaft 20, and the other sprocket 31 is coaxially connected to the outer periphery of the rotating shaft 32. The two sprockets 31 are driven by a chain. The rotating shaft 32 is used to drive the snap plate 14 to rotate, so that the motor 30 is powered on and its output shaft drives one of the cam shafts 20 to rotate, thereby driving the valve plate 13 to rotate and control the opening and closing of the sealing card. At the same time, one of the sprockets 31 rotates with the cam shaft 20, and through the chain transmission between the two sprockets 31, the rotating shaft 32 is driven to rotate, thereby driving the snap plate 14 and the valve plate 13 to rotate at the same time, achieving the effect of tightly closing and expanding the valve plate 13. The deicing assembly 4 includes a locking mechanism 40, which is mounted on the scraper 15 and is used to fix the position of the scraper 15; when the air valve is working normally, the position of the scraper 15 is fixed by the locking mechanism 40, and in the initial stage of opening the valve plate 13, the rotating shaft 32 simultaneously unlocks the locking mechanism 40, so that it can move horizontally for deicing. When the valve plate 13 is in a horizontal state, the snap plate 14 is located in the empty slot 10, and ventilation can be performed; at this time, the valve plate 13 is in a horizontal position, and the air valve is working normally. When the valve plate 13 is in a vertical state, the bottom of the snap plate 14 and the top of the valve plate 13 are in contact with each other, and the valve plate 13 is in an expanded state, which can increase the volume of the valve plate 13 and increase the sealing performance; at this time, the air valve is in a closed state, and the scraper 15 is fixed to one end of the valve frame 1 close to the motor 30 by the locking mechanism 40. When the bottom of the snap plate 14 rotates and separates from the valve plate 13, the locking mechanism 40 is in an unlocked state, and the scraper 15 can move horizontally for deicing. When the valve plate 13 of the air valve is rotated and opened, the locking mechanism 40 is unlocked, and the scraper 15 is driven by the de-icing assembly 4 to quickly remove ice.

[0039] like Figures 1 to 8 As shown: The valve plate 13 includes a plate body 130 and a plurality of rebound mechanisms 5. The plate body 130 is rotatably connected to the inner wall of the valve frame 1. A groove 131 is provided on the top of the plate body 130. Two adjacent plate bodies 130 are mutually engaged and matched through the groove 131. The bottom of the snap plate 14 is plugged and matched with the groove 131. The bottom of the plate body 130 is engaged and matched with the empty groove 10 at the bottom. The rebound mechanism 5 is installed in the plate body 130. The rebound mechanism 5 is used to ensure the elasticity of the plate body 130. In the process of the valve plate 13 rotating and closing, the two adjacent valve plates 13 rotate in opposite directions, so that the bottom of the top valve plate 13 is inserted into the groove 131 of the bottom valve plate 13. The bottom of the snap plate 14 rotates to disengage from the empty groove 10 and insert into the groove 131, and further squeezes the valve plate 13. The bottom of the bottom valve plate 13 is engaged in the empty groove 10, and the valve plate 13 is further fitted with the inner wall of the empty groove 10 as it is squeezed and expanded, so that the air valve is closed more tightly, reducing the leakage rate of the air valve.

[0040] like Figures 1 to 8 As shown: The rebound mechanism 5 includes a pair of cylinders 50, a pair of first tension springs 51 and two pairs of pull rings 52. The two cylinders 50 are arranged crosswise and connected in rotation in the middle. The cylinders 50 are sleeved on the outer periphery of the first tension spring 51. The two ends of the first tension spring 51 are respectively fixedly connected to the two pull rings 52. The pull rings 52 are respectively fixedly connected to the top and bottom of the inner walls of the two sides of the plate body 130. When the plate body 130 is squeezed, the middle part expands to both sides, and the pull rings 52 on both sides move away from each other, driving the first tension spring 51 to be stretched, and the two cylinders 50 rotate. When the buckle plate 14 is separated from the groove 131, the plate body 130 rebounds, and the first tension spring 51 contracts, pulling the pull rings 52 on both sides close to each other, further driving the valve plate 13 to shrink and rebound.

[0041] like Figures 1 to 6 As shown: One end of the convex shaft 20 passes through the valve frame 1 and is coaxially connected to the plate body 130. The flip assembly 2 also includes a plurality of pairs of connecting rods 21. The connecting rods 21 are located between two adjacent valve plates 13. One end of the connecting rod 21 is rotatably connected to the eccentric part of one side of the top convex shaft 20, and the other end of the connecting rod 21 is rotatably connected to the eccentric part of the other side of the bottom convex shaft 20. When one of the convex shafts 20 rotates, it drives one end of the connecting rod 21 to rotate around one side thereof, and at the same time, the other end of the connecting rod 21 rotates around one side of the other convex shaft 20 and drives it to rotate. Since the two ends of the connecting rod 21 are rotatably connected to the two sides of the two convex shafts 20 respectively, the two convex shafts 20 rotate in opposite directions, thereby driving the valve plates 13 to achieve reverse rotation and closure and mutual clamping.

[0042] like Figures 1 to 12 As shown: A pair of slide grooves 11 are provided at the top and bottom of the valve frame 1. The de-icing assembly 4 also includes two pairs of sliders 41, a connecting plate 42, two pairs of second tension springs 43 and a hydraulic rod 44. The top and bottom of the scraper 15 are respectively fixedly connected to the two sliders 41. The slider 41 is slidably connected to the slide groove 11. One end of the second tension spring 43 is fixedly connected to the inner wall of the slide groove 11, and the other end of the second tension spring 43 is fixedly connected to the slider 41. Both sides of the bottom of the connecting plate 42 pass through the top wall of the valve frame 1 and are fixedly connected to the two sliders 41. One end of the hydraulic rod 44 is fixedly connected to the end of the top of the valve frame 1 away from the motor 30, and the telescopic end of the hydraulic rod 44 conflicts with the connecting plate 42. When the locking mechanism 40 is unlocked, the second tension spring 43 contracts and pulls the slider 41 to slide horizontally along the slide groove 11, while driving the scraper 15 to move laterally to scrape off the ice shell on the surface of the valve plate 13. Then the hydraulic rod 44 is activated to push the connecting plate 42 and the scraper 15 to reset, and they are re-fixed to one end of the valve frame 1 through the locking mechanism 40. At this time, the scraper 15 can pass through the side wall of the valve frame 1 to avoid hindering the rotation of the valve plate 13.

[0043] like Figures 1 to 10 As shown: The locking mechanism 40 includes a block 400 and a pair of first springs 401. One end of the block 400 passes through the connecting plate 42 and is slidably connected thereto. One end of the first spring 401 is fixedly connected to the top of the connecting plate 42. The other end of the first spring 401 is fixedly connected to the top of the block 400. A through-groove 12 is provided at the top of the valve frame 1. The bottom of the block 400 is engaged with the groove 12. When the connecting plate 42 moves to one end of the valve plate 13, the first spring 401 rebounds, pushing the block 400 to slide downward and engage in the groove 12, thereby completing the locking.

[0044] like Figures 1 to 11 As shown: The driving assembly 3 further includes a rack 33, a guide rod 34, a fixing ring 35, teeth 36 and a pair of second springs 37. The top of the guide rod 34 is fixedly connected to the top wall of the valve frame 1, and the bottom of the guide rod 34 passes through the rack 33 and is slidably connected thereto. The guide rod 34 is used to support the rack 33 and limit its moving direction. The top of the rack 33 is plugged into the card slot 12. When the top of the rack 33 is inserted into the card slot 12, the card block 400 can be pushed upward to complete the unlocking. The fixing ring 35 is coaxially connected to the periphery of the rotating shaft 32, and a square groove 350 is provided on one side of the fixing ring 35. One side of the tooth 36 is slidably connected to the square groove 350. One end of the second spring 37 is fixedly connected to the inner wall of the square groove 350, and the other end of the second spring 37 is fixedly connected to the tooth 36. During the process of the valve plate 13 rotating and closing, the fixing ring 35 rotates with the rotating shaft 32, and drives the tooth 36 to contact the rack 33. As the rotation continues, the rack 33 squeezes the tooth 36 to make it slide into the square groove 350, the second spring 37 is compressed, and the rack 33 remains stationary. Then the second spring 37 rebounds to push the tooth 36 to engage with the rack 33, so as to avoid the rack 33 moving and affecting the locking mechanism 40 during the process of closing the valve plate 13. When the bottom of the snap plate 14 and the bottom wall of the groove 131 are in conflict with each other, the teeth 36 are meshed with the rack 33, the top of the rack 33 is separated from the empty groove 10, and the locking mechanism 40 is in a locked state; at this time, the valve plate 13 is in a closed state, and the scraper 15 is fixed to one end of the valve frame 1 through the locking mechanism 40. When the bottom of the snap plate 14 and the bottom wall of the groove 131 are separated from each other and located in the groove 131, the top of the rack 33 and the bottom of the block 400 are in conflict with each other, and the locking mechanism 40 is unlocked as the shaft 32 rotates; in the process of rotating to open the valve plate 13, the shaft 32 rotates and drives the rack 33 to rise through the meshing transmission of the teeth 36 and the rack 33, so as to be inserted into the slot 12 to push the block 400 upward, so that the locking mechanism 40 is unlocked. When the snap plate 14 is located in the empty groove 10 and separated from the valve plate 13, the teeth 36 are separated from the rack 33, and the locking mechanism 40 is in a locked state. At this time, the valve plate 13 is in an open state, the rack 33 falls down, and the locking mechanism 40 can be locked normally to prevent the scraper 15 and the valve plate 13 from interfering with each other.

[0045] like Figures 1 to 12 As shown: A plurality of long grooves 150 are provided on one side of the scraper 15 away from the valve plate 13. The de-icing assembly 4 further includes a plurality of ice blades 45 and a plurality of torsion springs 46. One end of the ice blade 45 is rotatably connected to the inner wall of the long groove 150. The torsion spring 46 is sleeved on the periphery of one end of the ice blade 45. One end of the torsion spring 46 is fixedly connected to the inner wall of the long groove 150. The other end of the torsion spring 46 is fixedly connected to the ice blade 45. One side of the ice blade 45 is in conflict with the inner wall of the valve frame 1. When the scraper 15 is locked in the valve frame 1, the ice blade 45 is squeezed into the long groove 150, and the torsion spring 46 is twisted. When the scraper 15 moves horizontally to remove ice, the torsion spring 46 rebounds and drives the ice blade 45 to pop out of the long groove 150. The end of the ice blade 45 close to the hydraulic rod 44 is a blade structure, which can increase the contact area between the scraper 15 and the ice shell and is perpendicular to the ice shell, thereby achieving the effect of quickly crushing and cutting the ice shell, further improving the de-icing ability.

[0046] like Figures 1 to 5 As shown: Both sides of the bottom wall of the valve frame 1 are inclined structures. A pair of heating pipes 16 are fixedly connected to the bottom of the valve frame 1. The two heating pipes 16 are symmetrically arranged on both sides of the valve frame 1. When the heating pipes 16 are powered on, they emit heat to increase the temperature. When the ice shell breaks and falls on the bottom wall of the valve frame 1, the ice shell is melted and flows down along the inclined surface, and cooperates with the de-icing component 4 to achieve the effect of rapid de-icing. A protective plate 17 is fixedly connected to one side of the valve frame 1. The protective plate 17 is used to protect the air valve from being damaged by the impact of debris brought by the airflow.

[0047] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not limiting, but are only for the convenience of clearly describing the positional relationship and function between the various components.

Claims

1. A heating system for a combined air valve, comprising a valve frame (1), characterized in that: It also includes a plurality of valve plates (13), a snap plate (14), a pair of scrapers (15), a flip assembly (2), a drive assembly (3) and an ice removal assembly (4); the valve plate (13) can be vertically rotatably installed in the valve frame (1) through the flip assembly (2); the plurality of valve plates (13) can be snap-fitted with each other; the top wall and the bottom wall of the valve frame (1) are both provided with a hollow groove (10); the snap plate (14) is rotatably connected to the inner wall of the hollow groove (10) at the top; the bottom of the snap plate (14) is The hook-shaped structure can be plugged into the valve plate (13); the hollow groove (10) at the bottom can be snap-fitted into the valve plate (13); the valve plate (13) is a hollow elliptical structure and is elastic; the scraper (15) can be horizontally slidably mounted on the valve frame (1) through the deicing assembly (4); the scraper (15) is in contact with the side wall of the valve plate (13); the drive assembly (3) is mounted on the valve frame (1); and the drive assembly (3) is used to drive the valve plate (13) and the snap plate (14) to rotate.

2. A heating system for a combined air valve according to claim 1, characterized in that: The flip assembly (2) comprises a plurality of pairs of cam shafts (20), the cam shafts (20) being used to support the valve plate (13) to rotate; the drive assembly (3) comprises a motor (30), a pair of sprocket wheels (31) and a rotating shaft (32); one end of the motor (30) is fixedly connected to the valve frame (1); the output shaft of the motor (30) passes through the side wall of the valve frame (1) and is coaxially connected to one of the cam shafts (20); one of the sprocket wheels (31) is coaxially connected to the periphery of the cam shaft (20); the other sprocket wheel (31) is coaxially connected to the periphery of the rotating shaft (32); the two sprocket wheels (31) are driven by a chain; the rotating shaft (32) is used to drive the buckle plate (14) to rotate; the deicing assembly (4) comprises a locking mechanism (40), the locking mechanism (40) is mounted on the scraper (15), and the locking mechanism (40) is used to fix the position of the scraper (15); When the valve plate (13) is in a horizontal state, the snap plate (14) is located in the empty groove (10), enabling ventilation; When the valve plate (13) is in a vertical state, the bottom of the buckle plate (14) and the top of the valve plate (13) are in contact with each other, and the valve plate (13) is in an expanded state, which can increase the volume of the valve plate (13) and improve the sealing performance; When the bottom of the snap plate (14) rotates and separates from the valve plate (13), the locking mechanism (40) is in an unlocked state, and the scraper (15) can move horizontally to remove ice.

3. A heating system for a combined air valve according to claim 2, characterized in that: The valve plate (13) comprises a plate body (130) and a plurality of rebound mechanisms (5); the plate body (130) is rotatably connected to the inner wall of the valve frame (1); a groove (131) is provided on the top of the plate body (130); two adjacent plate bodies (130) are snap-fitted with each other via the groove (131); the bottom of the snap plate (14) is plug-fitted with the groove (131); the bottom of the plate body (130) is snap-fitted with the empty groove (10) at the bottom; the rebound mechanism (5) is installed in the plate body (130); and the rebound mechanism (5) is used to ensure the elasticity of the plate body (130).

4. A heating system for a combined air valve according to claim 3, characterized in that: The rebound mechanism (5) comprises a pair of cylinders (50), a pair of first tension springs (51) and two pairs of pull rings (52). The two cylinders (50) are arranged crosswise and are rotatably connected in the middle. The cylinders (50) are sleeved on the outer periphery of the first tension springs (51). The two ends of the first tension springs (51) are respectively fixedly connected to the two pull rings (52). The pull rings (52) are respectively fixedly connected to the top and bottom of the inner walls on both sides of the plate body (130).

5. A heating system for a combined air valve according to claim 4, characterized in that: One end of the convex shaft (20) passes through the valve frame (1) and is coaxially connected to the plate body (130). The flip assembly (2) further comprises a plurality of pairs of connecting rods (21). The connecting rods (21) are located between two adjacent valve plates (13). One end of the connecting rods (21) is rotatably connected to an eccentric position on one side of the convex shaft (20) at the top, and the other end of the connecting rods (21) is rotatably connected to an eccentric position on the other side of the convex shaft (20) at the bottom.

6. A heating system for a combined air valve according to claim 2, characterized in that: A pair of slide grooves (11) are provided at the top and bottom of the valve frame (1). The deicing assembly (4) further comprises two pairs of sliders (41), a connecting plate (42), two pairs of second tension springs (43) and a hydraulic rod (44). The top and bottom of the scraper (15) are respectively fixedly connected to the two sliders (41). The slider (41) is slidably connected to the slide groove (11). One end of the second tension spring (43) is fixedly connected to the inner wall of the slide groove (11). The other end of the second tension spring (43) is fixedly connected to the slider (41). Both sides of the bottom of the connecting plate (42) respectively pass through the top wall of the valve frame (1) and are fixedly connected to the two sliders (41). One end of the hydraulic rod (44) is fixedly connected to an end of the top of the valve frame (1) away from the motor (30). The telescopic end of the hydraulic rod (44) contacts the connecting plate (42).

7. A heating system for a combined air valve according to claim 6, characterized in that: The locking mechanism (40) comprises a clamping block (400) and a pair of first springs (401); one end of the clamping block (400) passes through the connecting plate (42) and is slidably connected thereto; one end of the first spring (401) is fixedly connected to the top of the connecting plate (42); the other end of the first spring (401) is fixedly connected to the top of the clamping block (400); a through clamping groove (12) is provided at the top of the valve frame (1); and the bottom of the clamping block (400) is clamped and matched with the clamping groove (12).

8. A heating system for a combined air valve according to claim 7, characterized in that: The drive assembly (3) further comprises a rack (33), a guide rod (34), a fixing ring (35), teeth (36) and a pair of second springs (37); the top of the guide rod (34) is fixedly connected to the top wall of the valve frame (1); the bottom of the guide rod (34) passes through the rack (33) and is slidably connected thereto; the top of the rack (33) is plug-fitted into the slot (12); the fixing ring (35) is coaxially connected to the periphery of the rotating shaft (32); a square groove (350) is formed on one side of the fixing ring (35); one side of the teeth (36) is slidably connected to the square groove (350); one end of the second spring (37) is fixedly connected to the inner wall of the square groove (350); and the other end of the second spring (37) is fixedly connected to the teeth (36); When the bottom of the buckle plate (14) and the bottom wall of the groove (131) are in contact with each other, the teeth (36) are meshed with the rack (33), the top of the rack (33) is separated from the empty groove (10), and the locking mechanism (40) is in a locked state; When the bottom of the buckle plate (14) and the bottom wall of the groove (131) are separated from each other and located in the groove (131), the top of the rack (33) and the bottom of the block (400) are in contact with each other, and the locking mechanism (40) is unlocked as the rotating shaft (32) rotates; When the snap plate (14) is located in the empty groove (10) and is separated from the valve plate (13), the teeth (36) are separated from the rack (33), and the locking mechanism (40) is in a locked state.

9. A heating system for a combined air valve according to claim 6, characterized in that: A plurality of long grooves (150) are formed on a side of the scraper (15) away from the valve plate (13). The de-icing assembly (4) further comprises a plurality of ice blades (45) and a plurality of torsion springs (46). One end of the ice blade (45) is rotatably connected to the inner wall of the long groove (150). The torsion spring (46) is sleeved on the outer periphery of one end of the ice blade (45). One end of the torsion spring (46) is fixedly connected to the inner wall of the long groove (150). The other end of the torsion spring (46) is fixedly connected to the ice blade (45). One side of the ice blade (45) contacts the inner wall of the valve frame (1).

10. A heating system for a combined air valve according to claim 1, characterized in that: Both sides of the bottom wall of the valve frame (1) are inclined structures. A pair of heating tubes (16) are fixedly connected to the bottom of the valve frame (1). The two heating tubes (16) are symmetrically arranged on both sides of the valve frame (1). A protective plate (17) is fixedly connected to one side of the valve frame (1).

Images