WO2019218716A1 - 水管连接结构及燃烧器 - Google Patents

水管连接结构及燃烧器 Download PDF

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Publication number
WO2019218716A1
WO2019218716A1 PCT/CN2019/072149 CN2019072149W WO2019218716A1 WO 2019218716 A1 WO2019218716 A1 WO 2019218716A1 CN 2019072149 W CN2019072149 W CN 2019072149W WO 2019218716 A1 WO2019218716 A1 WO 2019218716A1
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WO
WIPO (PCT)
Prior art keywords
connector
water pipe
connection structure
rotation stop
card
Prior art date
Application number
PCT/CN2019/072149
Other languages
English (en)
French (fr)
Inventor
陈文风
孟宪超
梁国荣
Original Assignee
芜湖美的厨卫电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201820732998.8U external-priority patent/CN208238226U/zh
Priority claimed from CN201820732876.9U external-priority patent/CN208269422U/zh
Application filed by 芜湖美的厨卫电器制造有限公司, 美的集团股份有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Priority to EP19802491.1A priority Critical patent/EP3795921B1/en
Publication of WO2019218716A1 publication Critical patent/WO2019218716A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
    • F16L19/0286—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and being formed as a flange
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/045—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel

Definitions

  • the present invention relates to the field of household appliances, and more particularly to a water pipe connection structure, and a burner to which the water pipe connection structure is applied.
  • a burner is a general term for a device that causes fuel and air to be ejected and mixed in a certain manner.
  • burners are mostly used in household appliances such as water heaters or wall-hung boilers to provide residents with domestic hot water or home heating.
  • it is usually necessary to provide a cooling water pipe for cooling, and the cold water pipe needs to be connected to the external water inlet pipe in order to obtain the cooling liquid.
  • Embodiments of the present disclosure provide a burner, and a water heater to which the burner is applied, to solve or alleviate one or more of the problems of the prior art, at least to provide a beneficial selection or creation condition.
  • an embodiment of the present disclosure provides a water pipe connection structure including a first connector and a second connector, the first connector for connecting a cooling water pipe, a second connector is used to connect the inlet pipe;
  • the second connector is sleeved on the first connector
  • the first connecting head is provided with a rotation stopping portion, and the rotation stopping portion is clamped in the first side plate;
  • the first connector is fastened to the first side plate by the rotation stop portion.
  • the first side plate is provided with a first mounting hole, and the first mounting hole is adapted to the shape of the rotation stop portion;
  • the rotation stop portion is provided with a first rotation stop surface parallel to each other, the first rotation stop surface being symmetrically disposed with respect to a central axis of the first joint; the first mounting hole is opposite to the first a second rotation stop surface is provided at a position corresponding to the rotating surface;
  • the rotation stop portion is engaged in the first mounting hole, and the first rotation stop surface is opposite to the second rotation stop surface, so that the first connection head is fastened and fixed to the first side plate on.
  • the first connector further includes a threaded portion
  • the threaded portion is disposed on the rotation stop portion, and the first joint is screwed to the second joint by the threaded portion.
  • the end of the water inlet pipe protrudes outward to form a card foot, and the card foot is attached to the end surface of the thread portion;
  • the locking leg is screwed to the threaded portion by the second connecting head, and is pressed and fixed with the threaded portion.
  • a sealing ring is disposed between the locking leg and the threaded portion; the sealing ring is screwed to the threaded portion by the second connecting head, and is pressed and fixed at the Between the card foot and the threaded portion.
  • the first connector further includes an extension, and the extension is disposed on the rotation stop;
  • the outer diameter of the extension portion is sleeved with a card body
  • the second connector is fixedly coupled to the extension portion by the card body.
  • the second connector is provided with a card hole, and the card body includes an open portion, a circular arc portion and a convex portion;
  • the arc of the arc portion matches the outer diameter of the extension
  • a lower end of the circular arc portion is connected to the open portion, and the open portion is inclined outwardly with respect to the circular arc portion;
  • An upper end of the circular arc portion is connected to the convex portion, and the convex portion is convexly arranged upward with respect to the circular arc portion;
  • the circular arc portion is sleeved on the extending portion, and the open portion and the convex portion are engaged in the card hole.
  • the inner side of the circular arc portion is provided with a ferrule portion
  • the ferrule portion has an arc shape, the arc of the ferrule portion matches the outer diameter of the extension portion, and the ferrule portion is tightly sleeved on the extension portion;
  • An end portion of the ferrule portion is connected to the circular arc portion through a connecting leg, and a buffer gap is left between the ferrule portion and the circular arc portion.
  • the second connector includes a second inner connector and a second outer connector, the second inner connector is configured to connect the water inlet tube; the card hole is disposed in the first Two outer connectors;
  • the second inner connector is docked with the extension portion, and is integrated by the ferrule portion;
  • the second outer connector is sleeved on the second inner connector and the extension portion, and is fixedly engaged with the second inner connector and the extension portion.
  • the front end of the second inner connector projects into the extension and is sealingly connected to the extension by a sealing ring.
  • the outer diameter of the inlet pipe is provided with a clamping leg, and the inner diameter of the extending portion is provided with a card slot, and the locking pin is inserted into the card slot;
  • a sealing ring is disposed in the card slot, and the sealing ring is sealingly connected between the card slot and the inlet pipe;
  • the second connector abuts the card foot and the sealing ring, and is fixedly engaged with the extension portion by the card body.
  • the first connector is sealed to the cooling water pipe by a sealing ring.
  • an embodiment of the present disclosure provides a burner including the above-described water pipe connection structure.
  • the rotation stop portion can restrict the rotation of the first connection head relative to the first side plate, Thereby, the installation looseness problem is solved, and the installation fixing is more secure.
  • Figure 1 is a cross-sectional view of the water pipe connection structure 1000 of the present disclosure
  • FIG. 2 is a perspective view of the first connector of the water pipe connection structure 1000 of the present disclosure
  • Figure 3 is a cross-sectional view of the water pipe connection structure 2000 of the present disclosure.
  • FIG. 4 is a cross-sectional view of the card body of the water pipe connection structure 2000 and the water pipe connection structure 3000 in one embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a card body of a water pipe connection structure 2000 and a water pipe connection structure 3000 according to an embodiment of the present disclosure
  • Figure 6 is a cross-sectional view of the water pipe connection structure 3000 of the present disclosure.
  • Figure 7 is a front elevational view of the burner of the present application to which the water pipe connection structure 1000 is applied;
  • Figure 8 is a top plan view of the burner of Figure 7 of the present disclosure.
  • Figure 9 is a right side elevational view of the burner of Figure 7 of the present disclosure.
  • a water pipe connection structure is provided.
  • the water pipe connection structure 1000, 2000, 3000 of the present disclosure includes a first connector 100 and a second connector 200, wherein the first connector 100 can be used to connect a cooling water pipe.
  • the second connector 200 can be used to connect the water inlet pipe.
  • the second connector 200 is sleeved on the first connector 100, so that the cooling water pipe 9 and the water inlet pipe 12 can be connected to each other through the connection of the first connector 100 and the second connector 200.
  • the first connector 100 is provided with a rotation stop 110 , wherein the rotation stop 110 can be clamped in the first side plate 4 , so that the first connector 100 passes through the rotation stop 110 . It is fastened and fixed to the first side plate 4.
  • the first connector 100 is restrained by the rotation preventing portion 110 and is engaged with the first side plate 4. Therefore, the first connector 100 does not rotate with respect to the first side plate 4 along with the connection with the second connector 200, and the problem of loose installation between the first connector 100 and the second connector 200 is avoided.
  • the connection between the first connector 100 and the second connector 200 is made more secure.
  • the first connector 100 further includes a connecting portion 111.
  • the connection portion 111 is connected to the cooling water pipe 9, and the rotation stop portion 110 is provided on the connection portion 111.
  • a first mounting hole 41 is provided on the first side plate 4 (refer to FIG. 9 in combination), and the first mounting hole 41 is adapted to the shape of the rotation preventing portion 110, so that the rotation preventing portion 110 can be engaged. It is into the first mounting hole 41.
  • the rotation stop portion 110 is provided with a first rotation stop surface 1101 that is parallel to each other.
  • the first rotation stop surface 1101 may be symmetrically disposed with respect to the central axis 113 of the first coupling head 100.
  • the first mounting hole 41 is provided with a second rotation stop surface 4101 at a position corresponding to the first rotation stop surface 1101 (refer to FIG. 9 in combination).
  • the second rotation stop surface 4101 can be adapted to the shape of the first rotation stop surface 1101. In this way, when the rotation preventing portion 110 is engaged in the first mounting hole 41, the first rotation preventing surface 1101 can be abutted against the second rotation preventing surface 4101, and the first coupling head 100 can be clamped and fixed to the first side plate 4. on.
  • the rotation preventing portion 110 restricts the rotation of the first connector 100 relative to the first side plate 4, thereby avoiding the connection between the first connector 100 and the second connector 100. The installation between the heads 200 is loose.
  • the first joint head 100 further includes a threaded portion 112, and the threaded portion 112 is disposed on the rotation stop portion 110.
  • the outer diameter of the threaded portion 112 is provided with an external thread
  • the inner diameter of the second joint 200 can be provided with an internal thread, so that the first joint 100 can be screwed to the second joint 200 by the threaded portion 112.
  • the second connector 200 may employ a nut, but is not limited thereto.
  • the end of the inlet pipe 12 is extended outward to form a leg 121, and the leg 121 can be attached to the end face of the threaded portion 112.
  • the first connector 100 applies a force to the latch 121, so that the latch 121 can be pressed.
  • the connection between the inlet pipe 12 and the cooling water pipe 9 is completed.
  • a sealing ring 400a is provided between the leg 121 and the threaded portion 112.
  • the sealing ring 400a is pressed and fixed between the leg 121 and the threaded portion 112, so that the inlet pipe 12 and the first connector 100 can be The connection between the two is closer and more secure.
  • the leg 121 is formed by first protruding toward the outer diameter of the inlet pipe 12 and then folding back from the extended end. In this way, the thickness of the leg 121 can be increased, and the pin 121 can be prevented from being deformed when the second connector 200 is screwed in, thereby improving the sealing effect.
  • the first joint 100 and the cooling water pipe 9 are tightly connected by a seal ring 500, so that looseness can be reduced, so that the connection between the first joint 100 and the cooling water pipe 9 is more secure.
  • the first connection head 100 includes a connection portion 111 (see FIG. 2) and the rotation stop portion 110. (See FIG. 2) and the extension portion 114, wherein the connecting portion 111 is connected to the cooling water pipe 9, and the extending portion 114 is disposed on the rotation preventing portion 110.
  • the outer diameter of the extending portion 114 is sleeved with the card body 300.
  • the second connector 200 is sleeved on the first connector 100 and can be fastened to the extension portion 114 by the card body 300.
  • the cooling water pipe 9 and the water inlet pipe 12 can be connected to each other by the engagement of the first connector 100 and the second connector 200.
  • the card body 300 includes an open portion 301, a circular arc portion 302, and a raised portion 303.
  • the arc of the arc portion 302 matches the outer diameter of the extending portion 114, so that the arc portion 302 is easily caught on the extending portion 114.
  • the second connector 200 is provided with a card hole 2011.
  • the opening 2011 may be annularly disposed along the inner wall of the second connector 200, or may be disposed at a position corresponding to the opening portion 301 and the protrusion portion 303. Of course, it is not limited to this.
  • the opening portion 301 can be inserted into the card hole 2011 as the second connector 200 is nested, and is abutted against the inner wall of the card hole 2011, thereby The second connector 200 and the extension portion 114 are clamped to each other.
  • the upper end of the circular arc portion 302 is coupled to the convex portion 303, and the convex portion 303 may be convexly disposed upward with respect to the circular arc portion 302.
  • the arc portion 302 can be inserted into the hole 2011 and abut against the inner wall of the card hole 2011, thereby the second connector 200 and the first connector 100 are stuck to each other.
  • the open portion 301 and the boss portion 303 are fitted to each other, and the second joint 200 can be clamped at the upper and lower ends of the circular arc portion 302. Moreover, a triangular structure is formed between the open portion 301 and the point where the convex portion 303 abuts against the second joint 200, and the triangle has stability, so that the open portion 301 and the convex portion 303 can be made to the second joint 200. The clamping is more secure.
  • the inner side of the circular arc portion 302 may further be provided with a ferrule portion 304.
  • the ferrule portion 304 also has an arc shape, and the curvature of the ferrule portion 304 matches the outer diameter of the extending portion 114, so that the ferrule portion 304 can be tightly sleeved on the extending portion 114.
  • the end of the ferrule portion 304 is connected to the circular arc portion 302 by the connecting leg 305, so that the buffer gap C can be formed between the ferrule portion 304 and the circular arc portion 302.
  • the ferrule portion 304 can be forced toward the arc portion 302, that is, the buffer gap C is reduced.
  • the range of application of the card body 300 to the outer diameter of the extending portion 114 can be expanded.
  • the card body 300 is made of an elastic material, and the card body 300 can be more smoothly slid over the extension portion 114 of the first connector 100 due to the characteristics of the elastic material, and the open portion 301 and the boss portion can be made.
  • the 303 is in close contact with the inner wall of the card hole 2011 to make the snap-fit between the first connector 100 and the second connector 200 more secure.
  • the second connection head 200 may include a second inner connector 201 and a second outer connector 202, wherein the second inner connector 201 is An inlet pipe 12 is connected.
  • the second inner connector 201 is in contact with the extending portion 114 of the first connector 100, and is sleeved by the ferrule portion 304 to be integrated.
  • the card hole 2011 is disposed on the second outer connector 202 such that when the second outer connector 202 is sleeved onto the second inner connector 201 and the extension portion 114 of the first connector 100, the opening portion 301 and the boss portion The 303 will snap into the card hole 2011 on the second outer connector 202 and abut against the inner wall of the card hole 2011. Thereby, the second outer connector 202 is locked and fixed to the second inner connector 201 and the first connector 100.
  • the second connector 200 is double-ended (the second inner connector 201 and the second outer connector 202) is engaged with the extension portion 114 of the first connector 100 to make the connection more secure.
  • the front end of the second inner connector 201 can extend into the extension portion 114 of the first connector 100, and can be sealingly connected to the extension portion 114 through the sealing ring 400b, so that the card body 300 can be matched.
  • the connection of the second inner connector 201 to the first connector 100 is made closer and firmer.
  • the inlet pipe 12 can be welded and fixed to the second inner joint 201, so that the looseness of the inlet pipe 12 can be reduced.
  • one end of the inlet pipe 12 can extend into the second inner joint 201, and the second inner joint 201 can be fixed by welding with the outer diameter of the inlet pipe 12 exposed outside, and the welding position is as shown in FIG. Shown in Part B.
  • the first joint 100 and the cold water pipe 9 are sealingly connected by the seal ring 500, so that the looseness can be reduced, so that the connection between the first joint 100 and the cold water pipe 9 is more secure.
  • the outer diameter of the inlet pipe 12 may be provided with a pin 121, and the inner diameter of the extension portion 114 may be provided with a card slot 1141.
  • the sealing ring 400c may be disposed adjacent to the leg 121 and may be sealingly connected between the card slot 1141 and the inlet pipe 12.
  • the second connector 200 abuts the latch 121 and the seal ring 400c, and is fastened to the extension portion 114 by the card body 300. Therefore, the sealing ring 400c can cooperate with the leg 121 to further improve the tightness of the connection between the second connector 200 and the first connector 100.
  • the first connector 100, the second connector 200 (non-double layer structure), the card body 300, and the like have been described above, and details are not described herein again.
  • a burner is provided.
  • the burner of the present disclosure includes the above-described water pipe connection structure.
  • the burner includes a plurality of firearms 1, and the plurality of firearms 1 are disposed in parallel with each other.
  • Each of the fire extinguishers 1 is provided with at least three ejector tubes 101, and the fire separator 1 of the present embodiment is further provided with a mixing chamber 102.
  • the plurality of ejector tubes 101 are independent of each other, and each of the ejector tubes 101 is in communication with the aeration chamber 102.
  • the plurality of ejector tubes 101 can illuminate a larger amount of gas, thereby increasing the combustion intensity, reducing the emission of nitrogen oxides, and ensuring their safety in use.
  • the fasteners 2 can be used to pass through the plurality of fire extinguishers 1, so that the plurality of firearms 1 can be connected in one body, that is, the fire row 10 is formed.
  • the connection of the fasteners 2 the plurality of independent firearms 1 can be connected to be integrated, thereby achieving integral installation, and the connection operation of the fasteners 2 is simple and securely fixed.
  • both ends of the fastener 2 may extend relative to the fire row 10, i.e., the extended end of the fastener 2.
  • a pressing member 3 can be disposed at the protruding end of the fastener 2, and the pressing member 3 can press the fire row 10, thereby reducing the sway between the firearms and enhancing the connection of the plurality of firearms. stability.
  • the fastener 2 can be a bolt fastener, and the pressing member 3 can adopt a nut. After the bolt passes through the fire row, the nut can be locked by the nut, but the selection and connection form of the fastener 2 and the pressing member 3 are not only Limited to this.
  • the fasteners 2 can be a pair or can be arranged in pairs as desired. Wherein, each pair of fasteners 2 can be symmetrically arranged with respect to the axis of symmetry 106 of the firearm 1 in the plumb direction, thereby further ensuring stability on the connection.
  • the first side panel 4 is provided on both sides of the fire row 10.
  • the two ends of the fastener 2 respectively pass through the first side plate 4 corresponding thereto, so that the first side plate surface 4 and the fire row 10 can be integrally connected.
  • both ends (projecting ends) of the fastener 2 may also protrude from the first side plate 4, so that the first side plate 4 and the fire row 10 can be pressed by the pressing member 3.
  • the fire row 10 can be directly connected to other components through the first side plate 4.
  • the lower ends of the first side panels 4 are respectively bent toward the outside of the fire row 10 and extend horizontally, thereby forming a first side platform 401.
  • the first side platform 401 can serve as a connection position for connecting the fire row 10 to other components, and the specific connection will be described below.
  • the burner further includes a gas distributor 5 for supplying gas to the firearm 1.
  • the gas separation device 5 is disposed below the ejector tube 101, and the gas can enter the ejector tube 101 through the gas separation device 5, and is directed to the top of the firearm 1 through the ejector tube 101. ejection.
  • a plurality of gas passages 501 are provided in the gas separation device 5, and the number and distribution manner of the gas passages 501 should correspond to the number and distribution manner of the ejector tubes 101. Also, the gas passage 501 can communicate with the ejector tube 101 corresponding to its position.
  • the ejector tube 101 includes a first ejector tube 101A, a second ejector tube 101B, and a third ejector tube 101C.
  • the gas passage 501 may include a first gas passage 501A, a second gas passage 501B, and a third gas passage 501C.
  • the first gas passage 501A communicates with the first ejector tube 101A corresponding to its position through the first nozzle 502A;
  • the second gas passage 501B communicates with the second ejector tube 101B corresponding to its position through the second nozzle 502B;
  • the third gas passage 501C passes
  • the third nozzle 502C is in communication with the third ejector tube 101C corresponding to its position.
  • the second side plate 6 is fixedly connected to the air distribution device 5 on both sides of the air separation device 5 , wherein the fixed connection manner is not specifically limited.
  • the upper ends of the second side plates 6 are respectively bent toward the outside of the air separation device 5 and horizontally extended, thereby forming the second side platform 601.
  • the gas separation device 5 and the fire row 10 can be fixedly connected at the first side platform 401 and the second side platform 601.
  • the first side platform 401 and the second side platform 601 may be passed through the bolts 11 or screws, and at the end of the through, the nut is locked by the nut, thereby the air separation device 5 and The fire row 10 is fixedly connected.
  • the components used for the fixed connection are not limited to bolts or screws, and other components that can be used for fastening can be applied to this; the components used for locking are not limited to nuts, and others can be locked. Tightly acting components can be applied to this.
  • the front side of the fire row 10 is provided with a front side panel 7, and the upper portion of the front side panel 7 is provided with an igniter 8.
  • the ignition portion 80 of the igniter 8 can be disposed toward the air outlet end 103 of the fire extinguisher 1.
  • the gas ejected from the air outlet end 103 of the fire extinguisher 1 can be ignited by the ignition portion 80 to achieve combustion.
  • the ignition portion 80 includes a first firing end 801 and a second firing end 802.
  • FIG. 7 reference is made to the orientation shown in Fig. 7, in which the first ignition end 801 projects upward toward the front side panel 7, and then is bent toward the rear of the front side panel 7 and continues to extend.
  • the first ignition end 801 is located above the air outlet end 103, and the gas ejected from the air outlet end 103 can be ignited within a large range, thereby improving the gas utilization rate.
  • the second ignition end 802 projects upward toward the front side plate 7, and then is bent and extended toward the rear of the front side plate 7, and is bent toward the air outlet end 103 at the extended end, that is, toward the lower side.
  • the second ignition end 802 is disposed toward the air outlet end 103, and can be ignited in time when the gas is ejected from the air outlet end 103, increasing the combustion intensity.
  • the burner further includes a cooling water pipe 9, and the cooling water pipe 9 may be U-shaped.
  • a first through hole 104 is defined in the fire extinguisher 1, and both ends of the cooling water pipe 9 pass through the first through hole 104, respectively, and penetrate the fire row 10.
  • the cooling water pipe 9 can be in close contact with the fire extinguisher 1, so that the temperature of the fire extinguisher 1 (the fire row 10) can be lowered, and the generation of nitrogen oxides can also be reduced.
  • first through holes 104 are disposed between adjacent ejector tubes 101.
  • each of the ejector tubes 101 (the first ejector tube 101A, the second ejector tube 101B, and the third ejector tube 101C) can be adjacent to the cooling water pipe 9, and the cooling liquid in the cooling water pipe 9 can be used for each
  • the ejector tube 101 (the first ejector tube 101A, the second ejector tube 101B, and the third ejector tube 101C) is cooled.
  • the temperature of the gas in each of the ejector tubes 101 can be lowered, so that the temperature at which the gas is ejected from the gas outlet end 103 is lower, which further reduces the generation of nitrogen oxides and also reduces the emission of nitrogen oxides.
  • a top plate 105 is snapped over the firearm 1 . Further, the top plate 105 has a plurality of fire holes 1051, and the fire hole 1051 can communicate with the gas outlet end 103, so that the gas ejected from the gas outlet end 103 can be outwardly outputted from the fire hole 1051.
  • the first through hole 104 is disposed adjacent to the top plate 105, so that the cooling water pipe 9 can provide a better cooling effect on the top plate 105, further reducing the gas temperature at the gas output, thereby further reducing the nitrogen oxides. produce.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Gas Burners (AREA)

Abstract

一种水管连接结构（1000、2000、3000）及燃烧器。该水管连接结构（1000、2000、3000）包括第一连接头（100）和第二连接头（200），第一连接头（100）用于连接冷却水管，第二连接头（200）用于连接进水管；第二连接头（200）套设在第一连接头（100）上；第一连接头（100）上设有止转部（110），止转部（110）卡紧在第一侧板（4）中；第一连接头（100）通过止转部（110）与第一侧板（4）卡紧固定。

Description

水管连接结构及燃烧器
本申请要求于2018年05月15日提交中国专利局、申请号为201820732876.9、发明名称为“水管连接结构及燃烧器”的中国专利申请的优先权，以及2018年05月15日提交中国专利局、申请号为201820732998.8、发明名称为“水管连接结构及燃烧器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及家用电器领域，尤其涉及一种水管连接结构，以及应用了此水管连接结构的燃烧器。
背景技术
燃烧器是使燃料和空气以一定方式喷出混合燃烧的装置统称。目前，燃烧器多用于热水器或壁挂炉等家用设备中，以为居民提供生活热水或居家供暖。在燃烧器的使用中，通常需要设置冷却水管为其降温，而冷水水管则需要与外界的进水管相连接，以便能够得到冷却液。
但是，现有的冷却水管在连接进水管时，操作复杂，而且连接时会产生晃动，不便于操作。
发明内容
本公开实施例提供一种燃烧器，以及应用了此燃烧器的热水器，以解决或缓解现有技术中的一个或多个技术问题，至少提供一种有益的选择或创造条件。
为了实现以上的目的，根据本公开的一个方面，本公开实施例提供了一种水管连接结构，包括第一连接头和第二连接头，所述第一连接头用于 连接冷却水管，所述第二连接头用于连接进水管；
所述第二连接头套设在所述第一连接头上；
所述第一连接头上设有止转部，所述止转部卡紧在第一侧板中；
所述第一连接头通过所述止转部与所述第一侧板卡紧固定。
在一种实施例中，所述第一侧板上设有第一安装孔，所述第一安装孔与所述止转部的形状相适应；
所述止转部上设有相互平行的第一止转面，所述第一止转面相对于所述第一连接头的中心轴对称设置；所述第一安装孔在与所述第一止转面相对应的位置处设有第二止转面；
所述止转部卡入在所述第一安装孔内，所述第一止转面与所述第二止转面相抵，使所述第一连接头卡紧固定在所述第一侧板上。
在一种实施例中，所述第一连接头还包括螺纹部；
所述螺纹部设置在所述止转部上，所述第一连接头通过所述螺纹部与所述第二连接头螺纹连接。
在一种实施例中，所述进水管的端部朝外伸出形成卡脚，所述卡脚贴合在所述螺纹部的端面上；
所述卡脚通过所述第二连接头与所述螺纹部的螺纹连接，与所述螺纹部压紧固定。
在一种实施例中，所述卡脚和所述螺纹部之间设有密封圈；所述密封圈通过所述第二连接头与所述螺纹部的螺纹连接，被压紧固定在所述卡脚和所述螺纹部之间。
在一种实施例中，所述第一连接头还包括延伸部，所述延伸设置在所述止转部上；
所述延伸部的外径上卡套有卡体，
所述第二连接头通过所述卡体与所述延伸部卡接固定。
在一种实施例中，所述第二连接头中设有卡孔，所述卡体包括敞开部、圆弧部和凸起部；
所述圆弧部的弧度与所述延伸部的外径相匹配；
所述圆弧部的下端与所述敞开部连接，所述敞开部相对于所述圆弧部向外倾斜设置；
所述圆弧部的上端与所述凸起部连接，所述凸起部相对于所述圆弧部向上凸起设置；
所述圆弧部卡套在所述延伸部上，所述敞开部与所述凸起部卡入在所述卡孔内。
在一种实施例中，所述圆弧部的内侧设有卡套部；
所述卡套部呈圆弧状，所述卡套部的弧度与所述延伸部的外径相匹配，所述卡套部紧密套设在所述延伸部上；
所述卡套部的端部通过连接脚与所述圆弧部连接，所述卡套部与所述圆弧部之间留有缓冲间隙。
在一种实施例中，所述第二连接头包括第二内连接头和第二外连接头，所述第二内连接头用于连接所述进水管；所述卡孔设置在所述第二外连接头上；
所述第二内连接头与所述延伸部对接，并由所述卡套部卡套成为一体；
所述第二外连接头套设在所述第二内连接头与所述延伸部上，并与所述第二内连接头和所述延伸部卡接固定。
在一种实施例中，所述第二内连接头的前端伸入至所述延伸部内，并通过密封圈与所述延伸部密封连接。
在一种实施例中，所述进水管的外径设有卡脚，所述延伸部的内径设有卡槽，所述卡脚卡入至卡槽内；
所述卡槽内设有密封圈，所述密封圈密封连接在所述卡槽和所述进水管之间；
所述第二连接头抵住所述卡脚和所述密封圈，并通过所述卡体与所述延伸部卡接固定。
在一种实施例中，所述第一连接头与所述冷却水管之间通过密封圈密 封连接。
根据本公开的另一个方面，本公开实施例提供了一种燃烧器，其包括上述的水管连接结构。
上述技术方案中的一些技术方案具有如下优点或有益效果，本公开的水管连接结构，在对冷却水管与进水管进行装配时，止转部可以限制第一连接头相对于第一侧板转动，从而，解决了安装松动问题，使得安装固定更加牢靠。
上述概述仅仅是为了说明书的目的，并不意图以任何方式进行限制。除上述描述的示意性的方面、实施方式和特征之外，通过参见附图和以下的详细描述，本公开进一步的方面、实施方式和特征将会是容易明白的。
附图说明
在附图中，除非另外规定，否则贯穿多个附图相同的附图标记表示相同或相似的部件或元素。这些附图不一定是按照比例绘制的。应该理解，这些附图仅描绘了根据本公开公开的一些实施方式，而不应将其视为是对本公开范围的限制。
图1为本公开的水管连接结构1000的剖视图；
图2为本公开的水管连接结构1000的第一连接头的立体图；
图3为本公开的水管连接结构2000的剖视图；
图4为本公开在一种实施例中，水管连接结构2000和水管连接结构3000的卡体的剖视图；
图5为本公开在一种实施例中，水管连接结构2000和水管连接结构3000的卡体的示意图；
图6为本公开的水管连接结构3000的剖视图；
图7为本公开应用了水管连接结构1000的燃烧器的主视图；
图8为本公开的图7中燃烧器的俯视图；以及
图9为本公开的图7中燃烧器的右视图。
具体实施方式
在下文中，仅简单地描述了某些示例性实施例。正如本领域技术人员可认识到的那样，在不脱离本发明的精神或范围的情况下，可通过各种不同方式修改所描述的实施例。因此，附图和描述被认为本质上是示例性的而非限制性的。
本公开的第一方面，提供了一种水管连接结构。
下面结合图1至图6，对本公开的水管连接结构进行说明。
参见图1、图3和图6所示，本公开的水管连接结构1000、2000、3000包括第一连接头100和第二连接头200，其中，第一连接头100可以用于连接冷却水管，而第二连接头200可以用于连接进水管。
进一步地，第二连接头200套设在第一连接头100上，这样，冷却水管9和进水管12可以通过第一连接头100和第二连接头200的连接而相互连接。
结合参见图2所示，第一连接头100上设有止转部110，其中，止转部110可以卡紧在第一侧板4之中，从而，第一连接头100通过止转部110与第一侧板4卡紧固定。这样，在将第二连接头200拧紧到第一连接头100上时，第一连接头100受止转部110的限制，并与第一侧板4卡紧。从而，第一连接头100不会随着与第二连接头200的连接，而相对于第一侧板4转动，避免了第一连接头100与第二连接头200之间的安装松动问题，使得第一连接头100与第二连接头200连接更加牢靠。
参见图2所示，第一连接头100还包括连接部111。其中，连接部111与冷却水管9连接，止转部110设置在连接部111上。
并且，在第一侧板4上设有第一安装孔41(结合参见图9所示)，第一安装孔41与止转部110的形状相适应，从而，可以使止转部110卡入到第一安装孔41中。
进一步地，止转部110上设有相互平行的第一止转面1101。第一止转 面1101可以相对于第一连接头100的中心轴113对称设置。并且，第一安装孔41在与第一止转面1101相对应的位置处设有第二止转面4101(结合参见图9所示)。其中，第二止转面4101可以与第一止转面1101的形状相适应。这样，将止转部110卡入到第一安装孔41内时，第一止转面1101可以与第二止转面4101相抵，可以使第一连接头100卡紧固定在第一侧板4上。当将第二连接头200连接到第一连接头100上时，止转部110会限制第一连接头100相对于第一侧板4转动，从而，避免了第一连接头100与第二连接头200之间的安装松动问题。
在一种实施例中，参见图1和图2所示的水管连接结构1000，其中，第一连接头100进一步包括螺纹部112，并且，螺纹部112设置在止转部110上。并且，螺纹部112的外径设有外螺纹，第二连接头200的内径可以设有内螺纹，从而，第一连接头100可以通过螺纹部112与第二连接头200螺纹连接。在一种实施例中，第二连接头200可以采用螺母，但并不仅限于此。
参见图1所示，进水管12的端部朝外伸出形成卡脚121，并且，卡脚121可以贴合在螺纹部112的端面上。当第二连接头200套在第一连接头100上，并与第一连接头100的螺纹连接时，第一连接头100的会对卡脚121施加作用力，从而可以使卡脚121被压紧到螺纹部112的端面上，完成了进水管12与冷却水管9之间的连接。
优选地，卡脚121和螺纹部112之间设有密封圈400a。当第二连接头200与第一连接头100进行螺纹连接时，密封圈400a会被压紧固定在卡脚121和螺纹部112之间，从而，可以使进水管12与第一连接头100之间的连接更加紧密和牢靠。
进一步优选地，卡脚121的形成方式，可以是先朝向进水管12外径伸出，再由伸出的末端折回。这样，可以增加卡脚121的厚度，可以避免在第二连接头200拧入时，卡脚121发生变形，从而，提高密封效果。
参见图1所示，第一连接头100与冷却水管9之间通过密封圈500密 封连接，从而可以减少松动，使得第一连接头100与冷却水管9之间的连接更加牢靠。
在另一种实施例中，参见图3和图6所示的水管连接结构2000和水管连接结构3000，其中，第一连接头100包括连接部111(参见图2所示)、止转部110(参见图2所示)和延伸部114，其中，连接部111与冷却水管9连接，延伸部114设置在止转部110上。
进一步地，延伸部114的外径上卡套有卡体300。第二连接头200套设在第一连接头100上，并且，可以通过卡体300与延伸部114卡接固定。这样，冷却水管9和进水管12可以通过第一连接头100和第二连接头200的卡接而相互连接。
采用本实施例的水管连接结构，在对冷却水管9与进水管12进行装配时，卡接操作简单方便，而且安装固定牢靠。
参见图4所示，卡体300包括敞开部301、圆弧部302和凸起部303。其中，圆弧部302的弧度与延伸部114的外径相匹配，这样，便于圆弧部302卡套在延伸部114上。
进一步地，圆弧部302的下端与敞开部301连接，并且，敞开部301可以相对于圆弧部302向外倾斜设置。第二连接头200中设有卡孔2011，其中，开孔2011可以沿第二连接头200的内壁呈环形设置，也可以在与敞开部301和凸起部303的位置处分别设置卡孔，当然也并不仅限于此。
在将第二连接头200套到延伸部114上时，敞开部301可以随着第二连接头200的套入而卡入到卡孔2011内，并且，与卡孔2011的内壁相抵止，从而，将第二连接头200与延伸部114相互卡紧。
更进一步地，圆弧部302的上端与凸起部303连接，并且，凸起部303可以相对于圆弧部302向上凸起设置。这样，在将第二连接头200套到延伸部114时，圆弧部302可以卡孔2011内，并且，与卡孔2011的内壁相抵止，从而，将第二连接头200与第一连接头100相互卡紧。
敞开部301和凸起部303相互配合，可以在圆弧部302的上下两端将 第二连接头200卡紧。并且，敞开部301和凸起部303与第二连接头200相抵止的点之间形成了三角形结构，三角形具有稳定性，从而，可以使得敞开部301和凸起部303对第二连接头200的卡紧更加牢靠。
结合参见图5所示，圆弧部302的内侧还可以设有卡套部304。其中，卡套部304也呈圆弧状，并且，卡套部304的弧度与延伸部114的外径相匹配，从而，卡套部304可以紧密套设在延伸部114上。
进一步地，卡套部304的端部通过连接脚305与圆弧部302连接，从而，可以使得卡套部304与圆弧部302之间形成缓冲间隙C。这样，当第一连接头100的延伸部114的外径略大于卡套部304所围成的直径时，卡套部304可以受力朝向圆弧部302靠近，即，减小缓冲间隙C，从而，可以扩大卡体300对延伸部114的外径的适用范围。
优选地，卡体300由弹性材料制成，由于弹性材料的特性，可以使卡体300更加顺畅地卡套在第一连接头100的延伸部114上，并且可以使敞开部301和凸起部303与卡孔2011的内壁紧密接触，以使第一连接头100与第二连接头200之间的卡接固定更加牢靠。
另一种实施例中，参见图3所示的水管连接结构2000，其中，第二连接头200可以包括第二内连接头201和第二外连接头202，其中，第二内连接头201中连接有进水管12。
进一步地，第二内连接头201与第一连接头100的延伸部114相对接，并由卡套部304将两者卡套，以成为一体。
卡孔2011设置在第二外连接头202上，这样，将第二外连接头202套到第二内连接头201和第一连接头100的延伸部114上时，敞开部301与凸起部303会卡入到第二外连接头202上的卡孔2011内，并与卡孔2011的内壁相抵止。从而，将第二外连接头202与第二内连接头201和第一连接头100卡接固定。
第二连接头200采用双层结构(第二内连接头201和第二外连接头202)与第一连接头100的延伸部114卡接，可以使连接更加牢靠。
参见图3所示，第二内连接头201的前端可以伸入至第一连接头100的延伸部114内，并且，可以通过密封圈400b与延伸部114密封连接，从而，可以配合卡体300，使第二内连接头201与第一连接头100的连接更加紧密和牢靠。
参见图3所示，进水管12可以与第二内连接头201焊接固定，从而可以减少进水管12的松动。
优选地，进水管12的一端可以伸入至第二内连接头201内，并且，第二内连接头201可以与露在其外的进水管12的外径通过焊接固定，焊接位置如图3中B部所示。
参见图3所示，第一连接头100与冷水管9之间通过密封圈500密封连接，从而可以减少松动，使得第一连接头100与冷水管9之间的连接更加牢靠。
在另一种实施例中，参见图6所示的水管连接结构3000，进水管12的外径上可以设有卡脚121，延伸部114的内径可以设有卡槽1141。在将第二连接头200卡入到延伸部114上时，随着进水管12的前端伸入至第一连接头100中，卡脚121会随之卡入至卡槽1141内。
进一步地，密封圈400c可以邻近卡脚121设置，并且，可以密封连接在卡槽1141和进水管12之间。在装配过程中，第二连接头200抵住卡脚121和密封圈400c，并通过卡体300与延伸部114卡接固定。从而，密封圈400c可以配合卡脚121，进一步提高了第二连接头200与第一连接头100之间连接的紧密性。
其中，第一连接头100、第二连接头200(非双层结构)和卡体300等已在上文说明，在此不再赘述。
本公开的第二方面，提供了一种燃烧器。
本公开的燃烧器包括上述水管连接结构。
下面结合图7至图9，对本公开的燃烧器进行说明。其中，图7中仅以水管连接结构1000为例示出，本领域技术人员应该理解可以使用水管连 接结构2000和水管连接结构3000替换图7中的水管连接结构1000。
参见图7至图9所示，在一种实施例中，燃烧器包括多个分火器1，多个分火器1之间相互平行设置。每个分火器1上设有至少三个引射管101，并且本实施例的分火器1上还设有混气腔102。其中，多个引射管101之间相互独立，并且每个引射管101都与混气腔102连通。多个引射管101可以引射更多量的气体，从而，能够增加燃烧强度，降低氮氧化物的排放，保证其在使用中的安全性。
进一步地，可以使用紧固件2穿过多个分火器1，从而，可以将多个分火器1连接成为一体，即形成火排10。这样，通过紧固件2的连接，可以让多个独立的分火器1连接成为一体，实现整体安装，并且，紧固件2的连接操作简单，固定牢靠。
优选地，紧固件2的两端可以相对于火排10伸出，即，紧固件2的伸出端。并且，在紧固件2的伸出端处可以设置压紧件3，压紧件3可以将火排10压紧，从而，可以减少分火器之间的晃动，增强了多个分火器连接的稳定性。其中，紧固件2可以采用螺栓紧固件，压紧件3可以采用螺母，螺栓穿过火排后，可以由螺母锁紧，但紧固件2和压紧件3的选择和连接形式并不仅限于此。
参见图9所示，在一种实施例中，紧固件2可以为一对，也可以根据需要设置为多对。其中，每对紧固件2，可以相对于分火器1在铅锤方向上的对称轴106，对称设置，从而，进一步地保证了连接上的稳定性。
参见图7和图9所示，在一种实施例中，火排10的两侧设有第一侧板4。其中，紧固件2的两端分别穿过与其对应的第一侧板4，从而，可以将第一侧板面4与火排10连接成为一体。并且，紧固件2的两端(伸出端)也可以相对第一侧板4而伸出，从而，可以通过压紧件3将第一侧板4和火排10压紧。这样，将第一侧板4与火排10连接固定后，可以直接通过第一侧板4将火排10与其他部件连接。
参见图7和图9所示，在一种实施例中，第一侧板4的下端分别朝向 火排10的外侧弯折并水平延伸，从而，形成第一侧平台401。这样，第一侧平台401可以作为将火排10与其他部件连接的连接位置，具体连接方式将在下文进行描述。
参见图7和图9所示，在一种实施例中，燃烧器还包括分气装置5，分气装置5用于向分火器1供给气体。参见图8所示，分气装置5设置于引射管101的下方，气体可以通过分气装置5进入到引射管101中，并通过引射管101向分火器1的顶部进行引射和喷出。
进一步地，分气装置5中设有多个气体通道501，气体通道501的数量和分布方式应当与引射管101的数量和分布方式相对应。并且，气体通道501可以与其位置对应的引射管101连通。
具体地，在一种实施例中，参见图9所示，引射管101包括第一引射管101A、第二引射管101B和第三引射管101C。气体通道501可以包括第一气体通道501A、第二气体通道501B和第三气体通道501C。第一气体通道501A通过第一喷嘴502A与其位置对应的第一引射管101A连通；第二气体通道501B通过第二喷嘴502B与其位置对应的第二引射管101B连通；第三气体通道501C通过第三喷嘴502C与其位置对应的第三引射管101C连通。
进一步地，参见图7所示，分气装置5的两侧设有第二侧板6，第二侧板6与分气装置5固定连接，其中，固定连接方式不做具体限定。第二侧板6的上端分别朝向分气装置5的外侧弯折并水平延伸，从而，形成第二侧平台601。
优选地，分气装置5与火排10可以在第一侧平台401和第二侧平台601处固定连接。具体地，在一种实施例中，可以采用螺栓11或螺钉穿过第一侧平台401和第二侧平台601，并在穿出的一端，通过螺帽锁紧，从而将分气装置5与火排10固定连接。其中，固定连接所用的零部件并不仅限于螺栓或螺钉，其他等可以起到紧固作用的部件均可以应用于此；锁紧所用的零部件也并不仅限于螺帽，其他等可以起到锁紧作用的部件均可以 应用于此。
参见图7至图9所示，在一种实施例中，火排10的前侧设有前侧板7，前侧板7的上部设有点火器8。点火器8的点火部80可以朝向分火器1的出气端103设置。这样，由分火器1的出气端103所喷出的气体，可以由点火部80进行点燃，从而实现燃烧。
进一步地，参见图9所示，在一种实施例中，点火部80包括第一点火端801和第二点火端802。
结合参见图7所示，以图7中所示方位为基准，其中，第一点火端801朝向前侧板7的上方伸出，然后，朝向前侧板7的后方弯折并继续延伸。这样，第一点火端801位于出气端103的上方，可以在较大的范围内，将从出气端103中喷出的气体点燃，提高了气体的利用率。
第二点火端802，朝向前侧板7的上方伸出，然后，朝向前侧板7的后方弯折并延伸，在延伸的末端朝向出气端103，即，朝向下方，弯折。这样，第二点火端802朝向出气端103设置，可以在气体由出气端103喷出时，及时将其点燃，增加了燃烧强度。
参见图7至图9所示，在一种实施例中，燃烧器还包括冷却水管9，并且，冷却水管9可以呈U型。
燃烧器在长时间燃烧过程中，会导致火排发红，温度升高，也会产生氮氧化物。结合参见图3所示，分火器1上设有第一通孔104，冷却水管9的两端分别穿过第一通孔104，并且，贯穿火排10。这样，冷却水管9可以与分火器1紧密接触，从而，可以降低分火器1(火排10)的温度，还可以减少氮氧化物的产生。
进一步地，第一通孔104设置在相邻的引射管101之间。这样，每个引射管101(第一引射管101A、第二引射管101B和第三引射管101C)都可以与冷却水管9相邻，冷却水管9中的冷却液体可以对每个引射管101(第一引射管101A、第二引射管101B和第三引射管101C)进行冷却。从而，可以降低每个引射管101中气体的温度，使气体从出气端103喷出时 温度较低，进一步减少了氮氧化合物的产生，也降低了氮氧化物的排放。
参见图9所示，在一种实施例中，分火器1上方扣合有顶板105。进一步地，顶板105具有多个火孔1051，火孔1051可以与出气端103相连通，这样，由出气端103喷出的气体可以由火孔1051向外输出。
优选地，第一通孔104紧邻顶板105设置，这样，冷却水管9可以对顶板105起到更好的冷却效果，在气体输出处进一步降低了气体温度，从而，更佳地减少氮氧化物的产生。
在本说明书的描述中，参见术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
以上仅是本发明的优选实施方式，应当指出的是，上述优选实施方式不应视为对本发明的限制，本发明的保护范围应当以权利要求所限定的范围为准。对于本技术领域的普通技术人员来说，在不脱离本发明的精神和范围内，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (13)

  1. 一种水管连接结构，其特征在于，包括第一连接头和第二连接头，所述第一连接头用于连接冷却水管，所述第二连接头用于连接进水管；
    所述第二连接头套设在所述第一连接头上；
    所述第一连接头上设有止转部，所述止转部卡紧在第一侧板中；以及
    所述第一连接头通过所述止转部与所述第一侧板卡紧固定。
  2. 根据权利要求1所述的水管连接结构，其特征在于，
    所述第一侧板上设有第一安装孔，所述第一安装孔与所述止转部的形状相适应；
    所述止转部上设有相互平行的第一止转面；所述第一安装孔在与所述第一止转面相对应的位置处设有第二止转面；以及
    所述止转部卡入在所述第一安装孔内，所述第一止转面与所述第二止转面相抵，使所述第一连接头卡紧固定在所述第一侧板上。
  3. 根据权利要求1或2所述的水管连接结构，其特征在于，所述第一连接头还包括螺纹部；
    所述螺纹部设置在所述止转部上，所述第一连接头通过所述螺纹部与所述第二连接头螺纹连接。
  4. 根据权利要求3所述的水管连接结构，其特征在于，所述进水管的端部朝外伸出形成卡脚，所述卡脚贴合在所述螺纹部的端面上；
    所述卡脚通过所述第二连接头与所述螺纹部的螺纹连接，与所述螺纹部压紧固定。
  5. 根据权利要求4所述的水管连接结构，其特征在于，所述卡脚和所 述螺纹部之间设有密封圈；所述密封圈通过所述螺纹部的螺纹连接，被压紧固定在所述卡脚和所述螺纹部之间。
  6. 根据权利要求1或2所述的水管连接结构，其特征在于，所述第一连接头还包括延伸部，所述延伸部设置在所述止转部上；
    所述延伸部的外径上卡套有卡体，
    所述第二连接头通过所述卡体与所述延伸部卡接固定。
  7. 根据权利要求6所述的水管连接结构，其特征在于，所述第二连接头中设有卡孔，所述卡体包括敞开部、圆弧部和凸起部；
    所述圆弧部的弧度与所述延伸部的外径相匹配；
    所述圆弧部的下端与所述敞开部连接，所述敞开部相对于所述圆弧部向外倾斜设置；
    所述圆弧部的上端与所述凸起部连接，所述凸起部相对于所述圆弧部向上凸起设置；以及
    所述圆弧部卡套在所述延伸部上，所述敞开部与所述凸起部卡入在所述卡孔内。
  8. 根据权利要求7所述的水管连接结构，其特征在于，所述圆弧部的内侧设有卡套部；
    所述卡套部呈圆弧状，所述卡套部的弧度与所述延伸部的外径相匹配，所述卡套部紧密套设在所述延伸部上；
    所述卡套部的端部通过连接脚与所述圆弧部连接，所述卡套部与所述圆弧部之间留有缓冲间隙。
  9. 根据权利要求7或8所述的水管连接结构，其特征在于，所述第二连接头包括第二内连接头和第二外连接头，所述第二内连接头用于连接所 述进水管；所述卡孔设置在所述第二外连接头上；
    所述第二内连接头与所述延伸部对接，并由所述卡套部卡套成为一体；
    所述第二外连接头套设在所述第二内连接头与所述延伸部上，并与所述第二内连接头和所述延伸部卡接固定。
  10. 根据权利要求9所述的水管连接结构，其特征在于，所述第二内连接头的前端伸入至所述延伸部内，并通过密封圈与所述延伸部密封连接。
  11. 根据权利要求6-8任一项权利要求所述的水管连接结构，其特征在于，所述进水管的外径设有卡脚，所述延伸部的内径设有卡槽，所述卡脚卡入至卡槽内；
    所述卡槽内设有密封圈，所述密封圈密封连接在所述卡槽和所述进水管之间；
    所述第二连接头抵住所述卡脚和所述密封圈，并通过所述卡体与所述延伸部卡接固定。
  12. 根据权利要求1-11任一项权利要求所述的水管连接结构，其特征在于，所述第一连接头与所述冷却水管之间通过密封圈密封连接。
  13. 一种燃烧器，其特征在于，包括权利要求1-12任一项权利要求所述的水管连接结构。
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