Segmented combustion control mechanism of wall-hanging stove

Abstract

The invention discloses a sectional combustion control mechanism of a wall-hanging stove, and relates to the technical field of temperature control, the sectional combustion control mechanism comprises a combustion chamber, a heat exchanger and a base are fixedly assembled at the top and the bottom of the combustion chamber respectively, a water pipe is arranged in the heat exchanger in a coiled manner, and a fire grate is fixedly connected in the base; the control unit comprises a positioning rod fixed in the base, the positioning rod is sleeved with a mounting base, a spring a is arranged at the bottom of the mounting base, a magnetic assembly is arranged outside the mounting base, and the mounting base can deflect every time the wall-hanging stove is closed through the switching assembly; according to the wall-hanging stove, the burning fire grates can be switched, the fire grates in all the subareas can be evenly used, in addition, the fire grates in all the subareas can act in turns when the wall-hanging stove operates for a long time by driving the installation base to rotate, therefore, thermal stress can be evenly distributed among different fire grates, and the damage risk caused by thermal stress concentration is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control, and particularly to a segmented combustion control mechanism for a wall-mounted boiler. Background Art

[0002] A wall-mounted boiler is a device that uses gas or electricity as energy and can provide heating and domestic hot water simultaneously, and is widely used in household heating and hot water supply systems.

[0003] The burner is one of the core components of a gas wall-mounted boiler. It can mix gas and air in a certain proportion and then ignite to generate a stable flame, heating the water in the pipeline to achieve heating and hot water supply. The burner includes multiple groups of fire rows arranged in parallel. The fire rows are divided into multiple zones according to their positions. A segmented valve for controlling the on-off of gas is provided between the fire rows in each zone. The existing segmented combustion control mechanism adjusts the opening number of the fire rows by controlling the opening and closing of different segmented valves to achieve the adjustment of the heating power.

[0004] The fire rows in traditional wall-mounted boilers are generally divided into three series-connected zones. The first zone is directly connected to the gas pipeline through a pipeline. Segmented valves are respectively provided between the first zone and the second zone, and between the second zone and the third zone. After the wall-mounted boiler is started, the fire rows in the first zone are directly ignited and burned. Then, the segmented combustion of the fire rows is controlled by opening the segmented valves. As the fire rows are used for a long time, there will be obvious differences in the usage degrees of the fire rows in the three zones. Moreover, each time the wall-mounted boiler is started, the fire rows in the first zone will experience processes such as temperature changes and gas impacts during the initial combustion stage, and bear relatively large thermal stress and gas pressure changes. Therefore, after the wall-mounted boiler is used for a long time, the fire rows in the first zone will be damaged prematurely, while the fire rows in the other two zones still have a long service life, resulting in the wall-mounted boiler not reaching the expected service life. For this reason, it is necessary to improve the segmented combustion control mechanism of the wall-mounted boiler. Summary of the Invention

[0005] The purpose of the present invention is to propose a segmented combustion control mechanism for a wall-mounted boiler to solve the problem that after the wall-mounted boiler is used for a long time, the fire rows in the first zone are damaged prematurely, while the fire rows in the other two zones still have a long service life, resulting in the wall-mounted boiler not reaching the expected service life.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A segmented combustion control mechanism for a wall-mounted boiler, including a combustion chamber. A heat exchanger and a base are respectively fixedly assembled at the top and bottom of the combustion chamber. A water pipe is coiled inside the heat exchanger. A fire row is fixedly connected inside the base. It further includes: Control unit, the control unit includes a positioning rod fixed inside the base, an installation seat is sleeved outside the positioning rod, a spring a is arranged at the bottom of the installation seat, a magnetic force component is arranged outside the installation seat, a magnetic ring is fixedly connected to the outside of the installation seat, an electromagnet is arranged above the magnetic ring, a switching component is arranged at the top of the installation seat, and a connecting component is arranged inside the base; Adjusting mechanism, the adjusting mechanism includes a toothed ring and a sleeve rotatably connected to the outside of the installation seat, a convex tooth is fixedly connected to the outside of the sleeve, and a motor is fixedly installed inside the base; The switching component guides the installation seat every time the installation seat resets upward, so that the installation seat and the magnetic force component deflect by 120 degrees, and cooperates with the connecting component to switch and connect the gas burner.

[0007] As a further description of a segmented combustion control mechanism of a wall-mounted boiler of the above technology: the magnetic force component includes a magnetic block a fixed to the outside of the installation seat, a magnetic block b and a magnetic block c are fixedly connected to the outside of the sleeve, and the magnetic block a, the magnetic block b and the magnetic block c are arranged vertically at equal intervals from top to bottom.

[0008] As a further description of a segmented combustion control mechanism of a wall-mounted boiler of the above technology: the central angle of the magnetic block b is between 140 degrees and 340 degrees, and the central angle of the magnetic block c is between 140 degrees and 220 degrees.

[0009] As a further description of a segmented combustion control mechanism of a wall-mounted boiler of the above technology: the switching component includes a fixed seat fixed to the top of the positioning rod, three straight grooves and three inclined grooves are formed on the fixed seat, a guide plate is fixedly connected to the inner wall of the straight groove, and a telescopic convex rod is fixedly connected to the inner wall of the installation seat. When the telescopic convex rod slides inside the straight groove and contacts the guide plate, the guide plate compresses the telescopic convex rod.

[0010] As a further description of a segmented combustion control mechanism of a wall-mounted boiler of the above technology: the connecting component includes an annular connecting piece fixed inside the base and connecting the burner to the gas pipeline, a sealing plate one is slidably connected inside the annular connecting piece, a spring b is arranged between the sealing plate one and the annular connecting piece, and an iron block is fixedly connected to one side of the sealing plate one.

[0011] As a further description of a segmented combustion control mechanism of a wall-mounted boiler of the above technology: there are three groups of six burners, each group of burners is interconnected and used as a partition, and three connecting ports are equidistantly arranged on the annular connecting piece and are respectively connected to the burners of the three partitions.

[0012] As a further description of the segmented combustion control mechanism of a wall-mounted boiler according to the above technology: the driving shaft of the motor is fixedly connected with a gear 1, and an intermittent driving component is arranged on the annular connecting piece.

[0013] As a further description of the segmented combustion control mechanism of a wall-mounted boiler according to the above technology: the intermittent drive component includes a chuck rotatably connected to the annular connecting piece and fixed to the gear ring, the chuck is rotatably connected to gear 2, the bottom of gear 2 is fixedly connected to a push plate, a spring pin embedded in the chuck is fixedly installed on the annular connecting piece, and a torsion spring is provided between gear 2 and the gear ring.

[0014] As a further description of the segmented combustion control mechanism of a wall-mounted boiler of the above technology: it also includes an exhaust component, the exhaust component includes a gas storage box fixed to the electromagnet and the fixed seat, the interior of the gas storage box is slidably connected with a piston plate, a tension spring is provided between the piston plate and the gas storage box, a one-way valve 1 is installed on the top of the gas storage box, and a one-way valve 2 is installed between the annular connecting piece and the fire grate, and between the gas storage box and the fire grate.

[0015] As a further description of the segmented combustion control mechanism of a wall-mounted boiler according to the above technology: it also includes a gas flow regulating component, the gas flow regulating component includes an air inlet pipe fixed to the bottom of the annular connecting piece, the air inlet pipe is fixedly connected to a shell, the base is internally slidably connected to a rack, a supporting spring is provided at the bottom of the rack, the shell is internally slidably connected to a sealing plate 2, the shell is internally rotatably connected to a threaded rod threadedly connected to the sealing plate 2, one end of the threaded rod passes through the shell and is fixedly connected to a gear knob meshing with the rack.

[0016] In summary, due to the adoption of the above-mentioned technology, the staged combustion control mechanism of the wall-mounted boiler has the following beneficial effects: The present application uses a switching component to allow the mounting seat to deflect each time the wall-mounted boiler is closed. When the wall-mounted boiler is turned on again, the burning fire grate can be switched, so that the fire grates in each partition can be used evenly. Compared with the existing control mechanism, this design reduces the need for frequent repairs or replacements of fire grates due to premature damage to individual fire grates, thereby extending the service life of the entire wall-mounted boiler fire grate system. In addition, by driving the mounting seat to rotate, the fire grates in each partition can be used in turn when the wall-mounted boiler is running for a long time, so that the thermal stress can be evenly distributed among different fire grates, reducing the risk of damage caused by concentrated thermal stress, and further extending the overall service life of the fire grate; Through the unique design of the central angle sizes of the magnetic blocks b and c, when the magnetic blocks b and c deflect and switch the burner rows, the burner rows that are already in the combustion state will not be immediately extinguished. As a result, the gas ejected from the switched burner row can be ignited by the burner rows in the combustion state, so there is no need to ignite again, improving the use effect of the wall-mounted boiler; The exhaust assembly can slow down the impact vibration on the mounting base when the mounting base resets, and generate a rapidly ejected air flow to carry out the carbon deposits generated due to incomplete combustion of the gas near the burner holes, preventing the accumulation of carbon powder from blocking the burner rows and achieving a dredging effect. Moreover, the air flow can also carry out the residual gas in the burner rows, effectively reducing the possibility of gas accumulation inside the device, eliminating potential safety hazards, and improving the safety of using the wall-mounted boiler; When controlling the segmented combustion of the wall-mounted boiler by controlling the downward movement of the mounting base, the gas flow regulating assembly can also adjust the discharge speed of the gas in real time. This design not only can control the gas volume according to the segmented combustion of the burner rows without complex programs and electronic components, but also before adding the burning burner rows, the gas discharge volume has already increased. By increasing the gas discharge volume to make up for the sudden change in heat between different gears of the segmented combustion of the burner rows, the heating and temperature rise of the wall-mounted boiler are made smoother, facilitating the accurate control of the heating temperature of the wall-mounted boiler; The intermittent driving assembly can, without using complex braking mechanisms and sensors, accelerate the switching speed and accuracy of the burner rows, avoid switching the burner row gears when the gas discharge volume does not meet the requirements, thereby reducing the temperature fluctuation and being conducive to accurate temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shows the overall schematic diagram provided by an embodiment of the present invention; Figure 2 Shows the internal schematic diagram of the base provided by an embodiment of the present invention; Figure 3 Shows the schematic diagram of the installation position of the check valve II provided by an embodiment of the present invention; Figure 4 Shows the schematic diagram of the mounting base provided by an embodiment of the present invention; Figure 5 Shows the exploded schematic diagram of the fixing base provided by an embodiment of the present invention; Figure 6 Shows the schematic diagram of the convex plate provided by an embodiment of the present invention; Figure 7 Shows the schematic cross-sectional view of the sleeve provided by an embodiment of the present invention; Figure 8 Shows the internal schematic diagram of the annular connecting member provided by an embodiment of the present invention; Figure 9Shows a schematic diagram of the positional relationship between the magnetic block and the annular connecting member provided according to an embodiment of the present invention; Figure 10 Shows a schematic diagram of a gear knob provided according to an embodiment of the present invention; Figure 11 Shows a schematic cross-sectional view of a housing provided according to an embodiment of the present invention; Figure 12 Shows a schematic diagram of a chuck provided according to an embodiment of the present invention.

[0018] Legend description: 10. Combustion chamber; 11. Heat exchanger; 12. Water pipe; 13. Base; 14. Burner row; 20. Control unit; 21. Positioning rod; 22. Spring a; 23. Mounting seat; 24. Magnetic assembly; 241. Magnetic block a; 242. Magnetic block b; 243. Magnetic block c; 25. Magnetic ring; 26. Electromagnet; 27. Switching assembly; 271. Fixed seat; 272. Straight groove; 273. Inclined groove; 274. Guide plate; 275. Telescopic convex rod; 28. Connecting assembly; 281. Annular connecting member; 282. Sealing plate 1; 283. Spring b; 284. Iron block; 30. Adjusting mechanism; 31. Sleeve; 32. Convex teeth; 33. Motor; 34. Gear 1; 35. Tooth ring; 36. Intermittent driving assembly; 361. Chuck; 362. Gear 2; 363. Torsion spring; 364. Spring pin; 365. Push plate; 40. Exhaust assembly; 41. Gas storage box; 42. Piston plate; 43. Pulling spring; 44. Check valve 1; 45. Check valve 2; 50. Gas flow regulating assembly; 51. Inlet pipe; 52. Housing; 53. Rack; 54. Support spring; 55. Gear knob; 56. Threaded rod; 57. Sealing plate 2. Detailed implementation manners

[0019] Next, the technical solution of a segmented combustion control mechanism of a wall-mounted boiler in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0020] As Figures 1-12As shown in the figure, the present invention provides a segmented combustion control mechanism for a wall-mounted boiler, which includes a combustion chamber 10. The top and bottom of the combustion chamber 10 are respectively fixedly equipped with a heat exchanger 11 and a base 13. A water pipe 12 is coiled inside the heat exchanger 11. A burner row 14 is fixedly connected inside the base 13. The gas discharged through the air holes of the burner row 14 burns in the combustion chamber 10, and the heat is transferred to the water passing through the water pipe 12 through the heat exchanger 11, so that the hot water circulates in the external pipeline to realize heat supply. There are three groups of six burner rows 14 in total. Each group of two burner rows 14 is interconnected and used as a partition. The water temperature is controlled by segmented combustion by controlling the number of burner rows 14 put into use. It also includes: A control unit 20, which includes a positioning rod 21 fixed inside the base 13. An installation seat 23 is sleeved outside the positioning rod 21. A spring a22 is arranged at the bottom of the installation seat 23. A magnetic force assembly 24 is arranged outside the installation seat 23. A magnetic ring 25 is fixedly connected to the outside of the installation seat 23. An electromagnet 26 is arranged above the magnetic ring 25. A magnetic repulsion force is generated between the energized electromagnet 26 and the magnetic ring 25. By controlling the current magnitude of the electromagnet 26, the magnetic force magnitude of the electromagnet 26 can be adjusted, and then the downward displacement distance of the installation seat 23 can be controlled. A switching assembly 27 is arranged at the top of the installation seat 23, and a connection assembly 28 is arranged inside the base 13; The switching assembly 27 guides the installation seat 23 every time the installation seat 23 resets upward, so that the installation seat 23 and the magnetic force assembly 24 deflect by 120 degrees, and cooperate with the connection assembly 28 to switch and connect the burner rows 14 of the gas.

[0021] Refer to Figures 5-7 , the switching assembly 27 includes a fixed seat 271 fixed at the top end of the positioning rod 21. Three straight grooves 272 and three inclined grooves 273 are formed on the fixed seat 271. The straight grooves 272 and the inclined grooves 273 are both arranged in a circumferential array around the central axis of the fixed seat 271, and each straight groove 272 respectively connects two adjacent inclined grooves 273. A guiding plate 274 with an inclined top is fixedly connected to the inner wall of the straight groove 272. A telescopic convex rod 275 slidably connected in the straight groove 272 is fixedly connected to the inner wall of the installation seat 23. When the telescopic convex rod 275 slides inside the straight groove 272 and contacts the guiding plate 274, the guiding plate 274 compresses the telescopic convex rod 275 through the inclined plane. Therefore, when the installation seat 23 moves downward, the guiding plate 274 does not limit the downward movement of the telescopic convex rod 275. When the installation seat 23 moves upward and resets, the telescopic convex rod 275 also moves upward. At this time, the guiding plate 274 will hinder the upward movement of the telescopic convex rod 275, so that the telescopic convex rod 275 moves obliquely along the guiding plate 274 and the inclined groove 273, thereby driving the installation seat 23 to deflect, and the deflection angle is 120 degrees, ensuring the corresponding positions of the magnetic force assembly 24 and the connection assembly 28. When the wall-mounted boiler is turned on again, the burning burner rows 14 can be switched, so that the burner rows 14 in each partition can be evenly used.

[0022] Refer to Figure 2 、 Figure 3 and Figure 8 ,The connecting component 28 includes an annular connecting member 281 fixed inside the base 13 and communicating the burner 14 with the gas pipeline. Three connecting ports are equidistantly arranged on the annular connecting member 281 and are respectively communicated with the burners 14 in three zones, so that the on-off of the three connecting ports can respectively control the discharge of gas in the burners 14 in the three zones. A first sealing plate 282 is slidably connected inside each connecting port of the annular connecting member 281. A spring b 283 is arranged between the first sealing plate 282 and the annular connecting member 281. A iron block 284 is fixedly connected to one side of the first sealing plate 282. When the magnetic force assembly 24 passes through the middle of the annular connecting member 281, the magnetic force assembly 24 can attract the iron block 284 by magnetic force, thereby driving the first sealing plate 282 to move and opening the connecting port of the annular connecting member 281.

[0023] Refer to Figure 5 and Figure 7 ,In order to achieve segmented combustion control, the magnetic force assembly 24 includes a magnetic block a 241 fixed outside the mounting seat 23. A magnetic block b 242 and a magnetic block c 243 are fixedly connected to the outside of the sleeve 31. The magnetic block a 241, the magnetic block b 242 and the magnetic block c 243 are vertically arranged equidistantly from top to bottom. After the magnetic block c 243 enters the middle of the annular connecting member 281, the magnetic block c 243 attracts one of the iron blocks 284 by magnetic force, so that one of the first sealing plates 282 moves to open a connecting port of the annular connecting member 281, so that gas can enter the burner 14 in one of the zones through the annular connecting member 281, realizing the first gear combustion. After the magnetic block b 242 enters the middle of the annular connecting member 281, since the length range of the magnetic block b 242 can cover two iron blocks 284, the magnetic block b 242 can attract two iron blocks 284 by magnetic force at the same time, opening two connecting ports of the annular connecting member 281 and controlling the combustion of the burners 14 in two zones, realizing the second gear combustion. The magnetic block a 241 is annular. After the magnetic block a 241 enters the middle of the annular connecting member 281, all the open connecting ports of the annular connecting member 281 are opened, so that the burners 14 in the three zones burn simultaneously. In summary, segmented combustion control is realized.

[0024] Refer to Figure 9, each opening of the annular connecting member 281 corresponds to a central angle width of twenty degrees. The central angle of the magnetic block b242 is between one hundred and forty degrees and three hundred and forty degrees. The opening direction of the magnetic block b242 faces one of the connecting ports of the annular connecting member 281. The central angle of the magnetic block c243 is between one hundred and forty degrees and two hundred and twenty degrees. The symmetry axis of the magnetic block c243 faces any connecting port position except the above-mentioned connecting port of the annular connecting member 281. When switching from the magnetic block c243 to the magnetic block b242, the spring b283 in one of the connecting ports of the annular connecting member 281 remains open. Thus, when controlling staged combustion, the position movement of the spring b283 is reduced, and the service life of the spring b283 is extended. The central angles of the magnetic block c243 and the magnetic block b242 determine their length ranges. In order to avoid repeated ignition when the magnetic blocks b242 and c243 rotate to make the burner rows 14 burn alternately, the central angles of the magnetic blocks b242 and c243 are both greater than one hundred and forty degrees, which can cover the range of two connecting ports of the annular connecting member 281, so that the gas ejected from the switched burner row 14 can be ignited by the burner row 14 in the combustion state.

[0025] Refer to Figure 5 and Figure 12, further comprising an adjusting mechanism 30. The adjusting mechanism 30 includes a toothed ring 35 and a sleeve 31 rotatably connected to the outside of the mounting base 23. A convex tooth 32 is fixedly connected to the outside of the sleeve 31. A motor 33 is fixedly installed inside the base 13. A first gear 34 is fixedly connected to the drive shaft of the motor 33. An intermittent drive assembly 36 is provided on the annular communication member 281. The intermittent drive assembly 36 includes a chuck 361 rotatably connected to the annular communication member 281 and fixed to the toothed ring 35. A second gear 362 is rotatably connected to the chuck 361. A push plate 365 is fixedly connected to the bottom of the second gear 362. A spring pin 364 inserted into the chuck 361 is fixedly installed on the annular communication member 281. A torsion spring 363 in a compressed state all the time is provided between the second gear 362 and the toothed ring 35. Under the limit of the spring pin 364, the chuck 361 cannot deflect under the elastic force of the torsion spring 363. The motor 33 drives the first gear 34 to rotate, driving the second gear 362 and the push plate 365 to rotate. When the push plate 365 rotates to push the spring pin 364 out of the chuck 361 slot, at this time the elastic force of the torsion spring 363 drives the chuck 361 and the toothed ring 35 to rotate. During this process, since the push plate 365 and the spring pin 364 pass by each other, the spring pin 364 is reset by its own elastic force and abuts against the edge of the chuck 361. After the chuck 361 rotates 120 degrees, the slot of the chuck 361 is aligned with the spring pin 364 again. At this time, the spring pin 364 is inserted into the slot to lock the chuck 361. There are three spring pins 364, evenly dividing the edge of the chuck 361 into three equal parts, with each central angle being 120 degrees. This design enables the chuck 361 and the toothed ring 35 to intermittently rotate 120 degrees after the motor 33 is started. When the convex tooth 32 moves to be inserted into the tooth slot of the toothed ring 35, the toothed ring 35 intermittently drives the convex tooth 32 to rotate, thereby driving the sleeve 31, the magnet c243 and the magnet b242 to rotate, switching the connection port opened by the annular communication member 281, and thus switching the burning burner 14.

[0026] Refer to Figure 2 , Figure 3 and Figure 5, further comprising an exhaust assembly 40. The exhaust assembly 40 includes a gas storage box 41 fixed to the electromagnet 26 and the fixed seat 271. A piston plate 42 is slidably connected inside the gas storage box 41. A tension spring 43 that is always in a stretched state is provided between the piston plate 42 and the gas storage box 41. A one-way valve 44 is installed at the top of the gas storage box 41. One-way valves 45 are installed both between the annular communication member 281 and the burner 14 and between the gas storage box 41 and the burner 14. After the electromagnet 26 is powered off and the magnetic ring 25 and the mounting seat 23 lose the magnetic repulsion force, the compressed spring a22 drives the mounting seat 23 to move upward and reset through its elastic force, causing the mounting seat 23 to push the piston plate 42 upward. The air inside the gas storage box 41 enters the burner 14 through the one-way valve 45, taking out the residual gas in the burner 14, effectively reducing the possibility of gas accumulation inside the device. At the same time, when the mounting seat 23 impacts the piston plate 42, it can also transmit the vibration to the burner 14 to dredge the carbon deposits in the pores of the burner 14. When the mounting seat 23 moves downward, the tension spring 43 pulls the piston plate 42 downward, allowing the outside air to enter the gas storage box 41 through the one-way valve 44. In order to control the flow path of air and gas, one-way valves 45 are installed both between the annular communication member 281 and the burner 14 and between the gas storage box 41 and the burner 14 to prevent the mixing of gas and air.

[0027] Refer to Figure 10 and Figure 11 , further comprising a gas flow regulating assembly 50. The gas flow regulating assembly 50 includes an intake pipe 51 fixed to the bottom of the annular communication member 281. A housing 52 is fixedly connected to the intake pipe 51. A rack 53 is slidably connected inside the base 13. A support spring 54 is provided at the bottom of the rack 53. A second sealing plate 57 is slidably connected inside the housing 52. A threaded rod 56 that is threadedly connected to the second sealing plate 57 is rotatably connected inside the housing 52. One end of the threaded rod 56 penetrates through the housing 52 and is fixedly connected to a gear knob 55 that meshes with the rack 53. When the mounting seat 23 moves downward, it presses down the rack 53 to drive the gear knob 55 to rotate, thereby causing the threaded rod 56 to rotate and drive the second sealing plate 57 to slide inside the housing 52, regulating the gas delivery rate in the intake pipe 51, controlling the discharge speed of gas from the burner 14, adjusting the flame size, and making up for the sudden change in heat between different gears of the segmented combustion of the burner 14 by increasing the gas displacement, so that the heating and temperature rise of the wall-mounted boiler are more gentle.

[0028] Working principle: Control the electromagnet 26 to generate magnetic repulsion force to drive the magnetic ring 25 to move downward, so that the mounting seat 23 drives the sleeve 31 and the magnetic block c243 to move downward into the middle of the annular connecting member 281. Under the magnetic force of the magnetic block c243, one of the iron blocks 284 is attracted to drive the first sealing plate 282 to move, opening one of the connecting ports of the annular connecting member 281, so that the gas enters the burner 14 in one of the partitions through the air inlet pipe 51 and the annular connecting member 281. The gas is ignited to make the wall-mounted boiler enter the first-stage combustion, and the heat is transferred through the heat exchanger 11 to heat the water in the water pipe 12. Continue to increase the magnetic force of the electromagnet 26, so that the magnetic block b242 moves downward with the sleeve 31 into the middle of the annular connecting member 281. Similarly, the two connecting ports of the annular connecting member 281 are opened to realize the second-stage combustion of the wall-mounted boiler. Continue to increase the magnetic force of the electromagnet 26 until the magnetic block a241 enters the middle of the annular connecting member 281. At this time, all the connecting ports of the annular connecting member 281 are opened to realize the third-stage combustion of the wall-mounted boiler; When the wall-mounted boiler is in the first or second stage of combustion, at this time, the convex teeth 32 move with the sleeve 31 and are embedded in the toothed ring 35. The motor 33 is started to drive the first gear 34 to rotate, driving the second gear 362 and the push plate 365 to rotate. At this time, the chuck 361 and the toothed ring 35 are locked by the spring pin 364, and the torsion spring 363 continues to increase the compression force. When the push plate 365 rotates to push the spring pin 364 out of the chuck 361 card slot, at this time, the elastic force of the torsion spring 363 drives the chuck 361 and the toothed ring 35 to rotate, driving the sleeve 31, the magnetic block c243 and the magnetic block b242 to deflect. During this process, since the push plate 365 and the spring pin 364 cross each other, the spring pin 364 is reset by its own elastic force and abuts against the edge of the chuck 361. After the chuck 361 rotates 120 degrees, the card slot of the chuck 361 is aligned with the spring pin 364 again. At this time, the spring pin 364 is embedded in the card slot to lock the chuck 361. The single rotation angle of the toothed ring 35 is 120 degrees, so that when the magnetic block c243 and the magnetic block b242 rotate, they can accurately switch the opened connecting port of the annular connecting member 281 to control the rotation use of different partition burners 14; The downward movement of the mounting seat 23 presses down the rack 53, driving the gear knob 55 to rotate, thereby driving the threaded rod 56 to rotate and driving the second sealing plate 57 to slide inside the housing 52. The gas transmission rate in the air inlet pipe 51 is adjusted through the opening and closing degree of the second sealing plate 57, the gas discharge speed from the burner 14 is controlled, the flame size is adjusted, and the fire is increased by increasing the gas displacement in each combustion stage to increase the temperature, compensating for the sudden change of heat between different gears of the segmented combustion of the burner 14, making the heating and temperature increase of the wall-mounted boiler more gentle; After the electromagnet 26 is powered off, the stretching elastic force of the spring a22 drives the mounting seat 23 to reset. At this time, the telescopic convex rod 275 slides upward in the straight groove 272. Under the guidance of the guide plate 274 and the inclined groove 273, the telescopic convex rod 275 drives the mounting seat 23 to deflect, and the deflection angle is 120 degrees, ensuring the corresponding positions of the magnetic force assembly 24 and the connection assembly 28. When the wall-mounted boiler is turned on again, the burning burner 14 can be switched, so that the burners 14 in each zone can be evenly used; The upward movement of the mounting seat 23 drives the piston plate 42 to move upward, so that the air inside the air storage box 41 enters the burner 14 through the check valve II 45, and the residual gas in the burner 14 is carried out, effectively reducing the possibility of gas accumulation inside the device. At the same time, the impact of the mounting seat 23 on the piston plate 42 can also transmit the vibration to the burner 14 to dredge the carbon deposits in the pores of the burner 14. Since a check valve II 45 is also installed between the annular connecting member 281 and the burner 14, air will not enter the annular connecting member 281. Similarly, when the gas is transported through the annular connecting member 281, the gas will not enter the air storage box 41. When the mounting seat 23 moves downward, the tension spring 43 pulls the piston plate 42 downward by its elastic force, so that the outside air enters the air storage box 41 through the check valve I 44.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A segmented combustion control mechanism for a wall-mounted boiler, comprising a combustion chamber (10), wherein a heat exchanger (11) and a base (13) are fixedly assembled at the top and bottom of the combustion chamber (10) respectively, a water pipe (12) is coiled inside the heat exchanger (11), and a burner (14) is fixedly connected inside the base (13), characterized in that, It further includes: A control unit (20), the control unit (20) includes a positioning rod (21) fixed inside the base (13), an installation seat (23) is sleeved outside the positioning rod (21), a spring a (22) is arranged at the bottom of the installation seat (23), a magnetic force assembly (24) is arranged outside the installation seat (23), a magnetic ring (25) is fixedly connected to the outside of the installation seat (23), an electromagnet (26) is arranged above the magnetic ring (25), a switching assembly (27) is arranged at the top of the installation seat (23), and a connection assembly (28) is arranged inside the base (13); An adjusting mechanism (30), the adjusting mechanism (30) includes a toothed ring (35) and a sleeve (31) rotatably connected to the outside of the installation seat (23), a convex tooth (32) is fixedly connected to the outside of the sleeve (31), and a motor (33) is fixedly installed inside the base (13); The switching assembly (27) guides the installation seat (23) each time the installation seat (23) resets upward, so that the installation seat (23) and the magnetic force assembly (24) deflect by 120 degrees, and cooperate with the connection assembly (28) to switch and connect the gas burner (14).

2. The segmented combustion control mechanism of a wall-mounted boiler according to claim 1, characterized in that, The magnetic force assembly (24) includes a magnetic block a (241) fixed to the outside of the installation seat (23), a magnetic block b (242) and a magnetic block c (243) are fixedly connected to the outside of the sleeve (31), and the magnetic block a (241), the magnetic block b (242) and the magnetic block c (243) are vertically arranged at equal intervals from top to bottom.

3. The segmented combustion control mechanism of a wall-mounted boiler according to claim 2, characterized in that, The central angle of the magnetic block b (242) is between 140 degrees and 340 degrees, and the central angle of the magnetic block c (243) is between 140 degrees and 220 degrees.

4. A segmented combustion control mechanism for a wall-mounted boiler according to claim 1, characterized in that, The switching assembly (27) includes a fixed seat (271) fixed to the top end of the positioning rod (21), three straight grooves (272) and three inclined grooves (273) are formed in the fixed seat (271), a guide plate (274) is fixedly connected to the inner wall of the straight groove (272), a telescopic convex rod (275) is fixedly connected to the inner wall of the installation seat (23), and when the telescopic convex rod (275) slides inside the straight groove (272) and contacts the guide plate (274), the guide plate (274) compresses the telescopic convex rod (275).

5. A segmented combustion control mechanism for a wall-mounted boiler according to claim 1, characterized in that, The connection assembly (28) includes an annular connecting piece (281) fixed inside the base (13) and connecting the burner (14) and the gas pipeline, a sealing plate one (282) is slidably connected inside the annular connecting piece (281), a spring b (283) is arranged between the sealing plate one (282) and the annular connecting piece (281), and an iron block (284) is fixedly connected to one side of the sealing plate one (282).

6. A segmented combustion control mechanism for a wall-mounted boiler according to claim 5, characterized in that, There are three groups of six burners (14) in total, each group of burners (14) is interconnected and used as a partition, and three connection ports are equidistantly arranged on the annular connecting piece (281) and are respectively connected to the burners (14) of the three partitions.

7. A segmented combustion control mechanism for a wall-mounted boiler according to claim 5, characterized in that, The drive shaft of the motor (33) is fixedly connected with a first gear (34), and an intermittent drive assembly (36) is arranged on the annular communication member (281).

8. The segmented combustion control mechanism of a wall-mounted boiler according to claim 7, characterized in that, The intermittent drive assembly (36) includes a chuck (361) rotatably connected to the annular communication member (281) and fixed to the toothed ring (35). A second gear (362) is rotatably connected to the chuck (361). A push plate (365) is fixedly connected to the bottom of the second gear (362). A spring pin (364) inserted into the chuck (361) is fixedly installed on the annular communication member (281). A torsion spring (363) is arranged between the second gear (362) and the toothed ring (35).

9. The segmented combustion control mechanism of a wall-mounted boiler according to claim 4, characterized in that, It further includes an exhaust assembly (40). The exhaust assembly (40) includes an air storage box (41) fixed to the electromagnet (26) and the fixed seat (271). A piston plate (42) is slidably connected to the inside of the air storage box (41). A tension spring (43) is arranged between the piston plate (42) and the air storage box (41). A one-way valve one (44) is installed at the top of the air storage box (41). One-way valves two (45) are installed between the annular communication member (281) and the burner (14), and between the air storage box (41) and the burner (14).

10. A segmented combustion control mechanism for a wall-mounted boiler according to claim 5, characterized in that, It further includes a gas flow regulating assembly (50). The gas flow regulating assembly (50) includes an intake pipe (51) fixed to the bottom of the annular communication member (281). A housing (52) is fixedly connected to the intake pipe (51). A rack (53) is slidably connected to the inside of the base (13). A support spring (54) is arranged at the bottom of the rack (53). A second sealing plate (57) is slidably connected to the inside of the housing (52). A threaded rod (56) threadedly connected to the second sealing plate (57) is rotatably connected to the inside of the housing (52). One end of the threaded rod (56) penetrates through the housing (52) and is fixedly connected to a gear knob (55) meshing with the rack (53).

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