A gas boiler

Abstract

The present invention relates to the technical field of boilers, and specifically discloses a gas boiler, comprising a shell, a heating mechanism and an evaporation mechanism, wherein the evaporation mechanism comprises a plurality of outer tubes and a plurality of inner tubes, wherein the plurality of outer tubes and the plurality of inner tubes are distributed in the shell in a circular array with the axis of the shell as the center, and the inner tube is arranged on the inner side of the outer tube; in the gas boiler of the present invention, when a lot of scale accumulates in the outer tube, a driving component drives a rotating component to move, so that the rotating component drives the outer tube and the inner tube away from the heating mechanism, and then an adjusting component drives the outer tube on the rotating component to move to the inner side of the inner tube through a hinge component, and finally the driving component drives the rotating component to reset, so that the outer tube is close to the heating mechanism to avoid affecting the heating of the outer tube, and at the same time, the speed of scale generation in the inner tube can be slowed down, so as to avoid the rapid accumulation of scale in the inner tube for a long time, resulting in the need to frequently disassemble the shell for cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, and in particular to a gas boiler. Background Art

[0002] Gas boilers include gas-fired water boilers, gas-fired hot water boilers and gas-fired steam boilers, among which gas-fired hot water boilers are also called gas-fired heating boilers and gas-fired bathing boilers. As the name implies, gas boilers refer to boilers whose fuel is gas. Gas boilers are the most economical compared to oil-fired boilers and electric boilers, so most people choose gas boilers as boiler equipment for steam, heating and bathing. Gas boilers can automatically and continuously generate steam, and are heating equipment for food factories, employee restaurants, soy milk shops and garment factories.

[0003] A Chinese patent document with authorization announcement number CN219160308U discloses a fast clean steam generator, which is installed on the outer side of the lower part of the liquid circulation pipe through a pipe limiting sleeve, and at the same time, the pipe limiting sleeve is connected to the inside of the low limiting sleeve, and the limiting buckle is installed inside the low limiting sleeve and the pipe limiting sleeve. The pipe limiting sleeve carries the liquid circulation pipe and is installed between the low limiting sleeve and the top limiting sleeve to provide stability, and the liquid circulation pipe drives the liquid and steam to be conducted, providing preheating space when the liquid circulates, avoiding the liquid from being directly conducted to the inside of the liquid circulation pipe, resulting in excessive temperature difference between hot and cold inside the liquid circulation pipe, affecting the overall service life of the liquid circulation pipe.

[0004] However, the structural design of the above-mentioned related technology is as follows: during use, the outer side of the hot gas transmission pipe has two layers of pipes. When hot gas is passed into the hot gas transmission pipe, the pipe close to the hot gas transmission pipe is heated to a greater extent, while the pipe far from the hot gas transmission pipe is heated to a lesser extent. Therefore, scale accumulation in the pipe close to the hot gas transmission pipe is faster. After being used for a period of time, the pipe close to the hot gas transmission pipe will also hinder heat transfer to the pipe far from the hot gas transmission pipe. It is also necessary to frequently disassemble the boiler to clean the pipe close to the hot gas transmission pipe to ensure that the pipe far from the hot gas transmission pipe is heated normally, which can easily affect the work efficiency.

[0005] Therefore, a gas boiler is proposed to solve the above problems. Summary of the invention

[0006] The present invention provides a gas boiler, aiming to solve the problem in the related art that scale on the inner pipe accumulates quickly, easily affects the heating effect of the outer pipe, and requires frequent disassembly and cleaning.

[0007] The gas boiler of the present invention comprises a shell, a heating mechanism and an evaporation mechanism, wherein the evaporation mechanism comprises a plurality of outer tubes and a plurality of inner tubes, wherein the plurality of outer tubes and the plurality of inner tubes are distributed in the shell in a circular array with the axis of the shell as the center, and the inner tube is arranged on the inner side of the outer tube;

[0008] An adjusting mechanism for moving the outer tube to the inner side of the inner tube is provided on the inner wall of the shell, the adjusting mechanism comprises a mounting seat installed on the inner wall of the shell, a supporting assembly installed on the mounting seat, a driving assembly arranged at the lower part of the supporting assembly, an adjusting assembly arranged at the upper part of the supporting assembly and a plurality of rotating assemblies slidably arranged on the driving assembly, a guide groove for guiding the movement of the outer tube and the inner tube is provided on the mounting seat, a plurality of outer tubes and a plurality of inner tubes are respectively arranged on both sides of the plurality of rotating assemblies, a hinge assembly is provided on the rotating assembly, a locking assembly is installed on the hinge assembly, and limit assemblies are provided on both sides of the locking assembly, after the rotating assembly drives the outer tube and the inner tube away from the heating mechanism, the adjusting assembly drives the outer tube on the rotating assembly to move to the inner side of the inner tube through the hinge assembly, so that the outer tube is close to the heating mechanism.

[0009] When a lot of scale accumulates in the outer tube, the driving assembly drives the rotating assembly to move, so that the rotating assembly drives the outer tube and the inner tube away from the heating mechanism, thereby forming a space for the outer tube to pass through between the two adjacent inner tubes. Then the adjusting assembly drives the outer tube on the rotating assembly to move to the inside of the inner tube through the hinge assembly. Finally, the driving assembly drives the rotating assembly to reset, so that the outer tube is close to the heating mechanism to avoid affecting the heating of the outer tube. At the same time, it can slow down the speed of scale formation in the inner tube, avoid the rapid accumulation of scale in the inner tube for a long time, and cause the shell to be frequently disassembled for cleaning, thereby improving work efficiency.

[0010] Preferably, the support assembly comprises a support seat mounted on a mounting seat, and a groove for passage of the hinge assembly is formed on an outer side of the support seat.

[0011] The hinge assembly can pass through the support seat through the groove provided on the support seat.

[0012] Preferably, the driving assembly comprises a connecting ring rotatably connected to the inner wall of the supporting seat, and a limiting groove is provided on the connecting ring.

[0013] Preferably, the adjustment assembly includes a rotating ring arranged above the inside of the support seat and a plurality of protruding plates installed on the outside of the rotating ring, one side of the protruding plate is arc-shaped, and the end of the protruding plate is provided with an arc-shaped surface, and two fixed columns rotatably connected to the support seat are installed on the rotating ring.

[0014] Preferably, the rotating assembly includes a movable rod, a connecting block, a rotating column and a connecting seat. The movable rod is L-shaped and is slidably connected in a limiting groove. One end of the movable rod passes through one side of the support seat and extends to the outside of the support seat. The connecting block is installed at the other end of the movable rod. The rotating column is rotatably connected in the connecting block. A torque spring is provided between the connecting block and the rotating column. The connecting seat is installed on the rotating column. Both sides of the connecting seat are elastically slidably connected with fixed sleeves along the length direction of the connecting seat to connect the outer tube and the inner tube.

[0015] When the connecting ring rotates, the movable rod can be pushed to move through the limiting groove, so as to drive the fixing sleeve on the connecting seat to move, thereby driving the outer tube and the inner tube to move, so as to form a space for the outer tube to pass through between two adjacent inner tubes.

[0016] Preferably, the hinge assembly includes a fixed seat installed on the movable rod, a skateboard slidably connected to the fixed seat, a hinged part hinged on the skateboard, and a turntable installed on the rotating column, one end of the skateboard is arc-shaped, the other end of the skateboard passes through the fixed seat and extends to the outside of the fixed seat, and one end of the hinged part is hinged on the turntable.

[0017] The rotating ring can push the sliding plate to move through the convex plate, and the sliding plate can drive the rotating disk to rotate through the hinged part, so that the outer tube moves to the inner side of the inner tube.

[0018] Preferably, the locking assembly includes a fixed rod, a fixed block and a movable block, the bottom end of the fixed rod is mounted on the slide, the fixed rod is elastically slidably connected to the fixed seat along the lateral direction, the fixed block and the movable block are both frustum-shaped and the large ends are arranged opposite to each other, the fixed block is mounted on the outside of one end of the fixed rod, and the movable block is elastically slidably connected to the outside of the fixed rod along the length direction of the fixed rod and is arranged close to the fixed block.

[0019] Preferably, the limiting assembly includes a fixed plate and a limiting member, the fixed plates in the two limiting assemblies are respectively installed on both sides of the fixed seat, the limiting member is elastically slidably connected to one side of the fixed plate along the width direction of the fixed plate, the limiting member has an inclined surface on the side facing the fixed block, and the end of the limiting member has an arc-shaped surface.

[0020] When the slide plate moves, the fixed rod drives the fixed block and the movable block to move synchronously. When the outer tube moves to the inner side of the inner tube, the fixed block can be blocked from resetting through the limiter to limit the reverse rotation of the turntable, thereby preventing the outer tube from moving to the outside of the inner tube.

[0021] Preferably, a fixed tube one and a fixed tube two are respectively installed at the bottom ends of the outer tube and the inner tube, a hose three is installed at the top ends of the outer tube and the inner tube, a steam pipe for discharging steam is installed at the top end of the hose three, a plurality of fixed tubes one and a plurality of fixed tubes two are respectively slidably connected in a plurality of guide grooves, and a water supply mechanism is connected to the bottom ends of the fixed tube one and the fixed tube two.

[0022] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: when there is a lot of scale accumulated in the outer tube, the driving component drives the rotating component to move, so that the rotating component drives the outer tube and the inner tube away from the heating mechanism. When the rotating component moves to the extreme position, a space for the outer tube to pass through is formed between two adjacent inner tubes. Then the adjusting component drives the outer tube on the rotating component to move to the inside of the inner tube through the hinge component. Finally, the driving component drives the rotating component to reset, so that the outer tube is close to the heating mechanism to avoid affecting the heating of the outer tube. At the same time, it can slow down the speed of scale generation in the inner tube, avoid the rapid accumulation of scale in the inner tube for a long time, and cause the need to frequently disassemble the shell for cleaning, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the present invention.

[0024] Figure 2 It is a schematic diagram of the internal structure of a shell of a specific embodiment of the present invention.

[0025] Figure 3 It is a schematic structural diagram of a heating pipe in a specific embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the internal structure of the fixed cover in a specific embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of the internal structure of a support base in a specific embodiment of the present invention.

[0028] Figure 6 It is an exploded schematic diagram of a support assembly, a drive assembly and an adjustment assembly of a specific embodiment of the present invention.

[0029] Figure 7 It is a schematic structural diagram of a hinge assembly according to a specific embodiment of the present invention.

[0030] Figure 8 It is a schematic diagram of the internal structure of the connecting socket of a specific embodiment of the present invention.

[0031] Fig. 9 For the specific embodiment of the present invention Figure 7 Schematic diagram of the enlarged structure at point A in the middle.

[0032] Fig.10It is a structural schematic diagram of a water supply mechanism in a specific embodiment of the present invention.

[0033] Reference numerals:

[0034] 10. Boiler body; 11. Shell; 12. Fixed plate; 13. Collecting pipe; 14. Exhaust pipe; 15. Delivery pipe; 16. Reflux pipe;

[0035] 20. Heating mechanism; 21. Combustion chamber; 22. Heating pipe; 23. Connecting pipe; 24. Ignitor;

[0036] 30. Water supply mechanism; 31. Water distribution pipe 1; 32. Water distribution pipe 2; 33. Water supply pipe; 34. Hose 1; 35. Hose 2;

[0037] 40. Adjustment mechanism; 41. Mounting seat; 411. Fixed cover; 412. Guide groove; 42. Support assembly; 421. Support seat; 422. Groove; 423. Slideway 1; 424. Slideway 2; 43. Driving assembly; 431. Connecting ring; 432. Limiting groove; 433. Connecting rod; 434. Driving member 1; 44. Adjustment assembly; 441. Rotating ring; 442. Convex plate; 443. Fixed column; 444. Driving member 2; 45. Rotating assembly; 451. Movable rod; 452. Connecting block; 453. Rotating column; 454, connecting seat; 455, mounting groove; 456, spring one; 457, movable plate; 458, fixing sleeve; 46, hinge assembly; 461, fixing seat; 462, slide plate; 463, hinge; 464, turntable; 47, locking assembly; 471, fixing rod; 472, fixing ring; 473, spring two; 474, fixing block; 475, mounting plate; 476, spring three; 477, movable block; 48, limiting assembly; 481, fixing plate; 482, limiting member; 483, connecting rod; 484, spring four;

[0038] 50. Evaporation mechanism; 51. Outer tube; 52. Inner tube; 53. Fixed tube 1; 54. Fixed tube 2; 55. Flexible tube 3; 56. Steam tube. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] like Figures 1 to 10As shown, the gas boiler of the present invention comprises a boiler body 10, a heating mechanism 20, a water supply mechanism 30, a regulating mechanism 40 and an evaporation mechanism 50. The evaporation mechanism 50 is arranged inside the boiler body 10, the regulating mechanism 40 is arranged at the bottom end of the evaporation mechanism 50, the water supply mechanism 30 is connected to the evaporation mechanism 50, and the heating mechanism 20 is arranged on the inner side of the evaporation mechanism 50.

[0041] like Figure 1 to Figure 2 As shown, the boiler body 10 includes a shell 11, a fixed plate 12, a collecting pipe 13, a smoke exhaust pipe 14, a delivery pipe 15 and a return pipe 16. The fixed plate 12 is installed above the interior of the shell 11, and the collecting pipe 13 is installed in the middle of the top of the fixed plate 12. The smoke exhaust pipe 14 is installed at the top of the collecting pipe 13, and the top of the smoke exhaust pipe 14 passes through the top of the shell 11 and extends to the outside of the shell 11 to discharge the exhaust gas. The delivery pipe 15 is installed on one side of the top of the shell 11 to discharge the steam in the shell 11. The return pipe 16 is installed on the fixed plate 12, and the top of the return pipe 16 is located on the same horizontal plane as the top of the fixed plate 12, and the bottom end of the return pipe 16 passes through one side of the shell 11 and extends to the outside of the shell 11 to discharge the condensed water.

[0042] like Figures 1 to 3 As shown, the heating mechanism 20 includes a combustion chamber 21, a heating pipe 22 and a connecting pipe 23. The heating pipe 22 is installed at the bottom end of the collecting pipe 13, and the heating pipe 22 and the shell 11 are located on the same axis. The combustion chamber 21 is installed at the bottom end of the heating pipe 22, and the bottom end of the combustion chamber 21 is installed on the inner bottom wall of the shell 11. The connecting pipe 23 is installed on one side of the combustion chamber 21, and an igniter 24 is installed at the bottom of one side of the shell 11, and the connecting pipe 23 is installed at one end of the igniter 24. After the gas is ignited by the igniter 24, it enters the heating pipe 22 through the combustion chamber 21, and the evaporation mechanism 50 is heated by the heating pipe 22.

[0043] like Figures 2 to 4 As shown, the evaporation mechanism 50 includes a plurality of outer tubes 51 and a plurality of inner tubes 52. The plurality of outer tubes 51 and the plurality of inner tubes 52 are arranged in a circular array with the axis of the heating tube 22 as the center, the number of the outer tubes 51 and the number of the inner tubes 52 are the same, the inner tubes 52 are arranged on the inner side of the outer tubes 51, and the outer tubes 51 are arranged between every two adjacent inner tubes 52. In the initial position, the inner tubes 52 are arranged close to the heating tube 22, and the outer tubes 51 and the inner tubes 52 can be heated by the heating tube 22.

[0044] A fixed pipe 1 53 is installed at the bottom end of the outer pipe 51, and a fixed pipe 2 54 is installed at the bottom end of the inner pipe 52. Both the fixed pipe 1 53 and the fixed pipe 2 54 are connected to the water supply mechanism 30 to supply water to the outer pipe 51 and the inner pipe 52. A hose 3 55 is installed at the top end of the outer pipe 51 and the inner pipe 52. In this embodiment, the hose 3 55 is a metal bellows. A steam pipe 56 is installed at the top end of the hose 3 55. The steam pipe 56 is installed on the fixed disk 12, and the top end of the steam pipe 56 penetrates the fixed disk 12 and extends to the outside of the fixed disk 12. The steam generated in the outer pipe 51 and the inner pipe 52 is discharged through the steam pipe 56.

[0045] like Figures 2 to 5 As shown, the adjustment mechanism 40 includes a mounting seat 41, a support assembly 42, a drive assembly 43, an adjustment assembly 44 and a rotating assembly 45. The mounting seat 41 is arranged at the bottom end of the outer tube 51 and the inner tube 52, the support assembly 42 is arranged on the inner bottom wall of the mounting seat 41, the drive assembly 43 is arranged at the inner bottom of the support assembly 42, the adjustment assembly 44 is arranged at the inner top of the support assembly 42, and the rotating assembly 45 is slidably arranged on the drive assembly 43. There are multiple rotating assemblies 45, and the multiple rotating assemblies 45 are distributed in a circular array with the axis of the heating pipe 22 as the center. The multiple fixed pipes 1 53 are respectively arranged on one side of the multiple rotating assemblies 45, and the multiple fixed pipes 2 54 are respectively arranged on the other side of the multiple rotating assemblies 45. Through the rotation of the rotating assembly 45, the fixed pipes 1 53 and the fixed pipes 2 54 can be driven to move to adjust the positions of the outer tube 51 and the inner tube 52, so that the outer tube 51 is away from or close to the heating pipe 22.

[0046] The rotating assembly 45 is provided with a hinge assembly 46 , the hinge assembly 46 is mounted with a locking assembly 47 , and both sides of the locking assembly 47 are provided with limit assemblies 48 .

[0047] The locking assembly 47 can be limited by the limiting assembly 48 to prevent the hinge assembly 46 from moving.

[0048] like Figure 3 to Figure 4 As shown, the mounting base 41 includes a fixed cover 411 mounted on the inner wall of the shell 11, and a plurality of guide grooves 412 are opened at the top of the fixed cover 411. The plurality of guide grooves 412 are distributed in a circular array with the axis of the fixed cover 411 as the center, and a plurality of fixed tubes 53 and a plurality of fixed tubes 54 are respectively slidably connected in the plurality of guide grooves 412.

[0049] like Figures 3 to 6As shown, the support assembly 42 includes a support seat 421 mounted on the inner top wall of the fixed cover 411, and holes are provided on the fixed cover 411 and the support seat 421 for the heating pipe 22 to pass through. A groove 422 is provided on the outer side of the support seat 421 for the hinge assembly 46 to pass through, two slide grooves 1 423 are provided at the bottom end of the support seat 421, and a slide groove 2 424 is provided on the inner side of the bottom end of the support seat 421 near the slide groove 1 423. The shapes of the slide groove 1 423 and the slide groove 2 424 are both arc-shaped, and the support seat 421, the slide groove 1 423 and the slide groove 2 424 are all on the same center.

[0050] like Figures 5 and 6 As shown, the driving assembly 43 includes a connecting ring 431 rotatably connected to the inner wall of the support seat 421, and the connecting ring 431 is provided with limit grooves 432 corresponding to the number of the rotating assembly 45, and the limit grooves 432 are in an arc shape. Connecting rods 433 are installed on both sides of the bottom end of the connecting ring 431, and the connecting rods 433 are slidably connected in the slide groove 1 423. A driving member 1 434 is hinged on one of the connecting rods 433, and one end of the driving member 1 434 is hinged on the inner bottom wall of the support seat 421. In this embodiment, the driving member 1 434 is a hydraulic cylinder, and in other embodiments, the driving member 1 434 is an electric telescopic rod or a cylinder.

[0051] By extending and retracting the driving member 1 434 , the connecting rod 433 can be driven to slide along the track of the sliding groove 1 423 , thereby driving the connecting ring 431 to rotate.

[0052] like Figures 4 to 6 As shown, the adjustment assembly 44 includes a rotating ring 441 and a plurality of convex plates 442 installed on the outside of the rotating ring 441. The number of the convex plates 442 corresponds to the number of the hinge assembly 46, and the plurality of convex plates 442 are distributed in a circular array with the axis of the rotating ring 441 as the center. One side of the convex plate 442 is arc-shaped, and the end of the convex plate 442 is provided with an arc surface with the same center as the rotating ring 441. The fixed cover 411, the support seat 421, the connecting ring 431 and the rotating ring 441 are all located on the same axis. Two fixed columns 443 are installed on the inner side of the rotating ring 441 through a fixing member, and the fixed column 443 is slidably connected in the second slide groove 424. A second driving member 444 is hinged on one of the fixed columns 443, and one end of the second driving member 444 is hinged on the inner bottom wall of the support seat 421, and the structure of the first driving member 434 is the same as that of the second driving member 444.

[0053] The extension and retraction of the second driving member 444 can drive the fixed column 443 to slide along the track of the second sliding groove 424, thereby driving the plurality of convex plates 442 on the rotating ring 441 to rotate.

[0054] like Figures 5 to 8As shown, the rotating assembly 45 includes a movable rod 451, a connecting block 452, a rotating column 453 and a connecting seat 454. The movable rod 451 is L-shaped, and the movable rod 451 is slidably connected in the limiting groove 432. The bottom end of the movable rod 451 passes through the connecting ring 431 and extends to the outside of the connecting ring 431, and a limiting ring is installed on the outer side of the bottom end of the movable rod 451. The other end of the movable rod 451 passes through one side of the support seat 421 and extends to the outside of the support seat 421, and the connecting block 452 is installed at the other end of the movable rod 451. The rotating column 453 is rotatably connected in the connecting block 452, and a torque spring (not shown in the figure) is arranged between the connecting block 452 and the rotating column 453 to drive the rotating column 453 to reset, and the top end of the connecting seat 454 is installed at the bottom end of the rotating column 453.

[0055] Both sides of the connection seat 454 are provided with mounting grooves 455, and a spring 1 456 is mounted on the inner wall of the mounting groove 455. A movable plate 457 extending from the connection seat 454 is mounted on one end of the spring 1 456, and a fixing sleeve 458 is mounted on the other end of the movable plate 457. One fixing sleeve 458 is mounted on the outside of the fixing pipe 1 53, and the other fixing sleeve 458 is mounted on the outside of the fixing pipe 2 54 adjacent to the fixing pipe 1 53.

[0056] When the connecting ring 431 rotates, the connecting ring 431 drives the connecting block 452 on the movable rod 451 to move in the direction away from the support seat 421 through the limiting groove 432. At this time, the connecting block 452 drives the two fixed sleeves 458 to move through the connecting seat 454 on the rotating column 453. When the two fixed sleeves 458 move, the fixed tube 1 53 and the fixed tube 2 54 move, thereby driving the outer tube 51 and the inner tube 52 to move. When the connecting ring 431 rotates to the extreme position, the space between the two adjacent inner tubes 52 can allow the outer tube 51 to pass through. At this time, by rotating the rotating column 453, the outer tube 51 can be moved to the inner side of the inner tube 52. When the connecting ring 431 is reset, the outer tube 51 can be close to the heating tube 22, thereby slowing down the formation of scale in the inner tube 52.

[0057] like Figure 5 and Figure 7 As shown, the hinge assembly 46 includes a fixed seat 461, a slide plate 462, a hinge 463 and a turntable 464. The fixed seat 461 is installed on the outside of the movable rod 451, and the slide plate 462 is slidably connected in the fixed seat 461. One end of the slide plate 462 is arc-shaped, and the other end of the slide plate 462 passes through the fixed seat 461 and extends to the outside of the fixed seat 461. The hinge 463 is hinged to one end of the slide plate 462 through a pin shaft, and the other end of the hinge 463 is hinged to the top edge of the turntable 464 through a hinge shaft. In this embodiment, the hinge 463 is plate-shaped, and in other embodiments, the hinge 463 is rod-shaped, and the turntable 464 is installed at the top of the rotating column 453.

[0058] When the rotating ring 441 rotates, the convex plate 442 can push the sliding plate 462 to move, and the sliding plate 462 can drive the rotating column 453 to rotate through the rotating disk 464 on the hinge 463, so that the outer tube 51 moves to the inner side of the inner tube 52.

[0059] like Figure 5 , Figure 7 and Fig. 9 As shown, the locking assembly 47 includes a fixed rod 471, a fixed block 474 and a movable block 477. The fixed rod 471 is L-shaped, the bottom end of the fixed rod 471 is mounted on one side of the top of the slide plate 462, and the other end of the fixed rod 471 passes through the fixed seat 461 and extends to the outside of the fixed seat 461. A fixed ring 472 is mounted on the outside of the fixed rod 471, and a spring 473 is mounted between the fixed ring 472 and the fixed seat 461. The fixed block 474 and the movable block 477 are both truncated cone-shaped and equal in size, and the large ends of the fixed block 474 and the movable block 477 are arranged opposite to each other. The fixed block 474 is mounted on the outside of the other end of the fixed rod 471, and the movable block 477 is slidably connected to the outside of the fixed rod 471 and arranged near the movable block 477.

[0060] A mounting plate 475 is installed on one end of the outer side of the fixing rod 471 close to the small end of the movable block 477, and a spring 476 is installed between the mounting plate 475 and the movable block 477 to drive the movable block 477 to return to its original position.

[0061] When the slide plate 462 moves, the fixed rod 471 drives the fixed block 474 and the movable block 477 to move synchronously. At this time, the spring 2 473 is gradually compressed. When the outer tube 51 moves to the inner side of the inner tube 52, the fixed block 474 is blocked from resetting by the limit assembly 48 to limit the reverse rotation of the turntable 464, thereby preventing the outer tube 51 from transferring to the outer side of the inner tube 52.

[0062] Continue to refer Figure 5 , Figure 7 and Fig. 9 As shown, the limiting assembly 48 includes a fixing plate 481, a limiting member 482 and a connecting rod 483. The fixing plates 481 in the two limiting assemblies 48 are respectively installed on both sides of the fixing seat 461, and the limiting member 482 is arranged on the side of the fixing plate 481 facing the fixing rod 471. The side of the limiting member 482 facing the fixing block 474 has an inclined surface, and the end of the limiting member 482 has an arc surface connected to the inclined surface on the limiting member 482. The connecting rod 483 is installed on one side of the limiting member 482, and the connecting rod 483 passes through the fixing plate 481 and extends to the outside of the fixing plate 481. The shape of the connecting rod 483 is T-shaped, and a spring 484 is installed between the connecting rod 483 and the fixing plate 481 to drive the limiting member 482 to reset.

[0063] In the process of the fixed rod 471 driving the fixed block 474 and the movable block 477 to move, the fixed block 474 gradually squeezes the limit piece 482. At this time, the limit piece 482 gradually approaches the fixed plate 481, and the spring four 484 is compressed. When the outer tube 51 moves to the inner side of the inner tube 52, the fixed block 474 passes over the limit piece 482. At this time, the spring four 484 drives the limit piece 482 to reset, so as to prevent the fixed block 474 from resetting, thereby limiting the reset of the turntable 464, and further preventing the outer tube 51 and the inner tube 52 from resetting.

[0064] like Figure 2 , Figure 4 and Fig.10 As shown, the water supply mechanism 30 includes a water distribution pipe 1 31, a water distribution pipe 2 32, a water supply pipe 33, a hose 1 34 and a hose 2 35. The shapes of the water distribution pipe 1 31 and the water distribution pipe 2 32 are both annular. The water distribution pipe 1 31 is located outside the water distribution pipe 2 32. The bottom of the water distribution pipe 1 31 and the water distribution pipe 2 32 are both installed with a water supply pipe 33. One end of the water supply pipe 33 is connected to the water inlet end of the external water pump to supply water to the water distribution pipe 1 31 and the water distribution pipe 2 32. The number of hoses 1 34 is equal to the number of outer tubes 51, and the number of hoses 2 35 is equal to the number of inner tubes 52. The hose 1 34 and the hose 2 35 are both corrugated tubes. The bottom end of the hose 1 34 is installed on the water distribution pipe 1 31, and the top end of the hose 1 34 is connected to the bottom end of the fixed tube 1 53 to supply water to the outer tube 51. The bottom end of the second hose 35 is installed on the second water distribution pipe 32 , and the top end of the second hose 35 is connected to the bottom end of the second fixed pipe 54 to supply water to the inner pipe 52 .

[0065] Water is supplied to the water supply pipe 33 through an external water pump, and the water in the water supply pipe 33 enters the water distribution pipe 1 31 and the water distribution pipe 2 32. The water distribution pipe 1 31 supplies water to the outer pipe 51 through the fixed pipe 1 53 on the hose 1 34, and the water distribution pipe 2 32 supplies water to the inner pipe 52 through the fixed pipe 2 54 on the hose 2 35.

[0066] Working principle: When a lot of scale accumulates in the outer tube 51, start the driving member 434, which drives the connecting ring 431 on the connecting rod 433 to rotate, and the connecting ring 431 drives the connecting block 452 on the movable rod 451 to move away from the supporting seat 421 through the limiting groove 432. At this time, the connecting block 452 drives the two fixed sleeves 458 to move through the connecting seat 454 on the rotating column 453. When moving, the two fixed sleeves 458 drive the fixed tube 1 53 and the fixed tube 2 54 to move along the trajectory of the guide groove 412, thereby driving the outer tube 51 and the inner tube 52 to move.

[0067] When the connecting ring 431 rotates to the extreme position, the driving member 444 is started, and the driving member 444 drives the multiple convex plates 442 on the rotating ring 441 to rotate through the fixed column 443. At this time, the convex plate 442 pushes the slide plate 462 to move, and the slide plate 462 drives the rotating column 453 to rotate through the turntable 464 on the hinge 463. The rotating column 453 drives the outer tube 51 and the inner tube 52 on the two fixed sleeves 458 to rotate through the connecting seat 454. When the outer tube 51 moves to the inner side of the inner tube 52, the convex plate 442 stops rotating. At this time, the limit member 482 blocks the large end of the fixed block 474, thereby limiting the return of the turntable 464, thereby preventing the outer tube 51 and the inner tube 52 from returning to their original position.

[0068] Then the driving member 434 drives the connecting ring 431 to reset, so that the outer tube 51 is close to the heating tube 22 to slow down the speed of scale formation in the inner tube 52, avoiding the rapid accumulation of scale in the inner tube 52 for a long time and requiring frequent disassembly of the shell 11 for cleaning, thereby improving work efficiency.

[0069] When it is necessary to reset the outer tube 51 and the inner tube 52, the connecting ring 431 is rotated to the limit position again, and then the convex plate 442 pushes the slide plate 462 to move. At this time, the slide plate 462 drives the fixed block 474 and the movable block 477 to move through the fixed rod 471. The movable block 477 contacts with the limit member 482 during movement and pushes the limit member 482 to approach the fixed plate 481. When the end of the limit member 482 contacts the outer side of the movable block 477, the outer tube 51 is driven to move to the outer side of the inner tube 52 through the torque spring between the connecting block 452 and the rotating column 453. At the same time, the rotating disk 464 drives the slide plate 462 to reset through the hinge 463. The slide plate 462 pulls the fixed block 474 to approach the movable block 477 through the fixed rod 471, and then drives the fixed block 474 and the movable block 477 to cross the limit member 482 together, and then resets the connecting ring 431, so that the outer tube 51 and the inner tube 52 are reset.

[0070] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A gas boiler, comprising a shell (11), a heating mechanism (20) and an evaporation mechanism (50), characterized in that: The evaporation mechanism (50) comprises a plurality of outer tubes (51) and a plurality of inner tubes (52), wherein the plurality of outer tubes (51) and the plurality of inner tubes (52) are distributed in an annular array inside the shell (11) with the axis of the shell (11) as the center, and the inner tubes (52) are arranged on the inner side of the outer tubes (51); An adjusting mechanism (40) for moving the outer tube (51) to the inner side of the inner tube (52) is provided on the inner wall of the housing (11). The adjusting mechanism (40) comprises a mounting seat (41) mounted on the inner wall of the housing (11), a support assembly (42) mounted on the mounting seat (41), a driving assembly (43) arranged at the lower part of the supporting assembly (42), an adjusting assembly (44) arranged at the upper part of the supporting assembly (42), and a plurality of rotating assemblies (45) slidably arranged on the driving assembly (43). A guide groove (412) for guiding the movement of the outer tube (51) and the inner tube (52) is provided on the mounting seat (41). ), a plurality of outer tubes (51) and a plurality of inner tubes (52) are respectively arranged on both sides of a plurality of rotating components (45), a hinge component (46) is provided on the rotating component (45), a locking component (47) is installed on the hinge component (46), and limiting components (48) are provided on both sides of the locking component (47), after the rotating component (45) drives the outer tube (51) and the inner tube (52) away from the heating mechanism (20), the adjusting component (44) drives the outer tube (51) on the rotating component (45) to move to the inner side of the inner tube (52) through the hinge component (46), so that the outer tube (51) is close to the heating mechanism (20).

2. The gas boiler according to claim 1, characterized in that: The support assembly (42) comprises a support seat (421) mounted on the mounting seat (41), and a groove (422) for the hinge assembly (46) to pass through is provided on the outer side of the support seat (421).

3. The gas boiler according to claim 2, characterized in that: The driving assembly (43) comprises a connecting ring (431) rotatably connected to the inner wall of the supporting seat (421), and a limiting groove (432) is provided on the connecting ring (431).

4. The gas boiler according to claim 3, characterized in that: The adjustment assembly (44) comprises a rotating ring (441) arranged above the interior of the support seat (421) and a plurality of convex plates (442) mounted on the outside of the rotating ring (441); one side of the convex plate (442) is arc-shaped; an end of the convex plate (442) is provided with an arc-shaped surface; and two fixing columns (443) rotatably connected to the support seat (421) are mounted on the rotating ring (441).

5. The gas boiler according to claim 4, characterized in that: The rotating assembly (45) comprises a movable rod (451), a connecting block (452), a rotating column (453) and a connecting seat (454). The movable rod (451) is L-shaped. The movable rod (451) is slidably connected in the limiting groove (432). One end of the movable rod (451) passes through one side of the support seat (421) and extends to the outside of the support seat (421). The connecting block (452) is installed at the other end of the movable rod (451). The rotating column (453) is rotatably connected in the connecting block (452). A torque spring is provided between the connecting block (452) and the rotating column (453). The connecting seat (454) is installed on the rotating column (453). Both sides of the connecting seat (454) are elastically slidably connected with fixed sleeves (458) along the length direction of the connecting seat (454) to connect the outer tube (51) and the inner tube (52).

6. The gas boiler according to claim 5, characterized in that: The hinge assembly (46) comprises a fixed seat (461) mounted on the movable rod (451), a slide plate (462) slidably connected to the fixed seat (461), a hinge (463) hinged on the slide plate (462), and a turntable (464) mounted on the rotating column (453), one end of the slide plate (462) is arc-shaped, the other end of the slide plate (462) passes through the fixed seat (461) and extends to the outside of the fixed seat (461), and one end of the hinge (463) is hinged on the turntable (464).

7. The gas boiler according to claim 6, characterized in that: The locking assembly (47) comprises a fixed rod (471), a fixed block (474) and a movable block (477); the bottom end of the fixed rod (471) is mounted on the slide plate (462); the fixed rod (471) is elastically slidably connected to the fixed seat (461) in a transverse direction; the fixed block (474) and the movable block (477) are both truncated cone-shaped and their large ends are arranged opposite to each other; the fixed block (474) is mounted on the outside of one end of the fixed rod (471); the movable block (477) is elastically slidably connected to the outside of the fixed rod (471) in a length direction of the fixed rod (471) and is arranged close to the fixed block (474).

8. The gas boiler according to claim 7, characterized in that: The limiting assembly (48) comprises a fixing plate (481) and a limiting member (482); the fixing plates (481) in the two limiting assemblies (48) are respectively mounted on two sides of the fixing seat (461); the limiting member (482) is elastically slidably connected to one side of the fixing plate (481) along the width direction of the fixing plate (481); the limiting member (482) has an inclined surface on a side facing the fixing block (474); and the end of the limiting member (482) has an arc-shaped surface.

9. The gas boiler according to any one of claims 1 to 8, characterized in that: A fixed tube one (53) and a fixed tube two (54) are respectively installed at the bottom ends of the outer tube (51) and the inner tube (52); a hose three (55) is installed at the top ends of the outer tube (51) and the inner tube (52); a steam pipe (56) for discharging steam is installed at the top end of the hose three (55); a plurality of fixed tubes one (53) and a plurality of fixed tubes two (54) are respectively slidably connected in a plurality of guide grooves (412); and a water supply mechanism (30) is connected at the bottom ends of the fixed tubes one (53) and the fixed tubes two (54).

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