Stove burner

Abstract

Provided in the present utility model is a stove burner, comprising a cup body, a gas intake holder, a burner cap holder, a central burner cap, and an outer-ring burner cap, wherein the cup body is provided with an inner-ring premixing cavity and an outer-ring premixing cavity located on the outer side of the inner-ring premixing cavity; the cup body is provided with a central-fire gas intake pipe in communication with the inner-ring premixing cavity and an outer-ring gas intake pipe in communication with the outer-ring premixing cavity, and the central-fire gas intake pipe is provided with an internal thread; and the gas intake holder is provided with a central-fire nozzle and an outer-ring fire nozzle, and an air regulation pipe is connected to the central-fire gas intake pipe in a threaded manner. A spring is provided to abut against the air regulation pipe to achieve the effect of pressing against the air regulation pipe, such that the resistance of the air regulation pipe is increased during rotation, so as to prevent the occurrence of self-rotation during transportation and thereby prevent a factory-adjusted central-fire air supply gap from changing even when encountering bumps and vibrations.

Description

Stove burner TECHNICAL FIELD

[0001] The utility model relates to the field of burner, in particular to a stove burner. BACKGROUND

[0002] At present, the prior art, Chinese patent 201310191896.1 discloses a burner, which is provided with an air adjusting pipe on the injection pipe, the length of the air adjusting pipe extending out of the injection pipe is controlled, so that the distance of the air supplement gap can be adjusted, and then the proportion of air supplement and fuel gas can be controlled, at present, the adjusting mode is that internal threads are arranged in the injection pipe, external threads are arranged on the surface of the air adjusting pipe, and the adjusting is carried out in a screw adjusting mode, so that the distance adjusting control is more smooth. But the problem is that in the present technology, the purpose of the threads is only to adjust the distance, not to lock, so the rotating resistance of the air adjusting pipe is very small, but the burner inevitably encounters bumps and vibrations during transportation, and in the process of continuous bumps and vibrations, the air adjusting pipe will rotate, the position of the air adjusting pipe preset at the factory will change, the preset proportion of air and fuel gas will be unbalanced, and the combustion efficiency will change.

[0003] CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an upper air inlet stove burner with an air adjusting pipe that is not prone to self-rotation.

[0005] The utility model discloses a stove burner that solves the problems by adopting the following technical scheme: a stove burner comprises a cup body, an air inlet seat, a fire cover seat, a center fire cover and an outer ring fire cover.

[0006] The cup body is provided with an inner ring premixing cavity and an outer ring premixing cavity located outside the inner ring premixing cavity, the cup body is provided with a center fire air inlet pipe in communication with the inner ring premixing cavity and an outer ring air inlet pipe in communication with the outer ring premixing cavity, and the center fire air inlet pipe is provided with internal threads.

[0007] The air inlet seat is provided with a center fire nozzle opposite to the center fire air inlet pipe and an outer ring fire nozzle opposite to the outer ring air inlet pipe, and the outer ring fire nozzle and the outer ring air inlet pipe form an outer ring air supplement gap.

[0008] An air adjusting pipe is provided with external threads in screw connection with the internal threads, a center fire air supplement gap is formed between the outer end face of the air adjusting pipe and the center fire nozzle, the air adjusting pipe is used for rotating on the center fire air inlet pipe to adjust the width of the center fire air supplement gap, and the air adjusting pipe is provided with a spring in abutment with the air inlet seat or the center fire nozzle.

[0009] As a further improvement of the above technical solution, the air inlet seat comprises a center air outlet seat arranged at the inner end, and the center fire nozzle is arranged on the center air outlet seat, and the spring is in abutment with the center air outlet seat.

[0010] As a further improvement of the above technical solution, the center air outlet seat is provided with a head portion, and the center fire nozzle is arranged on the head portion, and the head portion is inserted into the spring.

[0011] As a further improvement of the above technical solution, the outer ring air inlet pipe is a left air inlet pipe and a right air inlet pipe arranged respectively on the two sides of the center fire air inlet pipe, the air inlet seat is provided with a left air outlet seat and a right air outlet seat arranged respectively on the left and right sides of the center air outlet seat, and the outer ring fire nozzle is arranged on the left air outlet seat and the right air outlet seat respectively.

[0012] As a further improvement of the above technical solution, the cup body is provided with a left outer ring air inlet pipe and a right outer ring air inlet pipe opposite to the outer ring fire nozzle and communicating with the outer ring premixing cavity, and the left air inlet pipe and the right air inlet pipe are respectively inserted into the left outer ring air inlet pipe and the right outer ring air inlet pipe and fixed.

[0013] As a further improvement of the above technical solution, the cup body comprises a seat plate, a primary air inlet cavity arranged on the seat plate, an ignition needle fixing hole and an induction needle fixing hole; the fire cover seat comprises an outer ring gas groove, an air inlet cavity with a lower opening communicating with the outer ring gas groove, and the inner ring premixing cavity is a circular ring premixing cavity arranged on the cup body; the inner ring wall plate of the circular ring premixing cavity extends upward, and the outer ring wall plate is provided with an inner interface and an axial positioning groove,

[0014] The fire cover seat further comprises a cylindrical sleeve with upper and lower openings, and the cylindrical sleeve is connected with the outer ring gas groove through a radial rib, and the lower end of the cylindrical sleeve is provided with an outer interface, and the lower end of the outer interface is provided with a positioning plate;

[0015] The center fire cover comprises a hollow cover body portion with a lower opening, a hollow center pipe with a lower opening, and a combustion hole arranged on the cover body portion.

[0016] The outer ring premixing cavity and the air inlet cavity are connected, the inner ring wall plate of the circular ring premixing cavity extends into the cylindrical sleeve, the outer interface is inserted into the inner interface, and the positioning plate is inserted into the axial positioning groove; the cover body portion is buckled with the cylindrical sleeve, and the center pipe is inserted into the axial hole of the inner ring wall plate.

[0017] As a further improvement of the above technical solution, the axial hole of the inner ring wall plate of the circular ring premixing cavity is provided with a plugging plate.

[0018] As a further improvement of the above technical solution, the center fire cover further comprises a discharge protrusion arranged on the top portion and extending radially, and a flow blocking and dividing protrusion arranged on the top plate, the end portion of the discharge protrusion is matched with the ignition needle, and there is a spacing between the end portion of the discharge protrusion and the ignition needle on the horizontal plane.

[0019] As a further improvement of the above technical solution, the discharge protrusion is triangular and rounded at the top corner.

[0020] The utility model provides a range burner, through setting up a spring to carry out the pressure to air adjusting pipe, has played the role of compacting air adjusting pipe, makes the resistance of air adjusting pipe when rotating increase, thereby avoids the phenomenon of self -rotation in the transportation process, makes the center fire of factory adjustment good supplementary air gap when also cannot change when encountering jolt. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is the front view of the utility model.

[0022] Fig. 2 is the A-A view of Fig. 1.

[0023] Fig. 3 is the B-B view of Fig. 1.

[0024] Fig. 4 is the C-C view of Fig. 3.

[0025] Fig. 5 is one of the utility model's three-dimensional exploded view.

[0026] Fig. 6 is the second three-dimensional exploded view of the utility model.

[0027] Fig. 7 is the third three-dimensional exploded view of the utility model.

[0028] Fig. 8 is the perspective view of the utility model. DETAILED DESCRIPTION

[0029] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0030] In the description of the utility model, it is necessary to explain that, unless there is explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can be detachable connection, or integrally connected, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] As shown in Figure 1, a stove burner, comprising a cup body 1, an air inlet seat 2, a fire cap seat 3, a center fire cap 4, an outer ring fire cap 5, a left air inlet pipe 61, a right air inlet pipe 62, an ignition needle 71 and a sensing needle 72, the cup body 1 comprises a seat plate 11, a center fire air inlet pipe 12, an inner ring premixing cavity, an outer ring premixing cavity 13, a primary air inlet cavity 15 preferably arranged on the seat plate 11, an ignition needle fixing hole (not labeled) and a sensing needle fixing hole, the center fire air inlet pipe 12 is in communication with the inner ring premixing cavity, the left air inlet pipe 61 and the right air inlet pipe 62 are in communication with the outer ring premixing cavity 13, the center fire air inlet pipe 12 is provided with an internal thread, the air inlet seat 2 is provided with a center air outlet seat 22, a left air outlet seat and a right air outlet seat, the center air outlet seat 22 is provided with a center fire nozzle opposite to the center fire air inlet pipe 12 and an outer ring fire nozzle opposite to the left air inlet pipe and the right air inlet pipe; an outer ring air supplement gap is arranged between the outer ring fire nozzle and the left air inlet pipe and the right air inlet pipe.

[0032] An air regulating pipe 63 is arranged on the air regulating pipe 63, and an external thread is screwed on the internal thread, and a center fire air supplement gap is arranged between the outer end surface of the air regulating pipe 63 and the center fire nozzle, and the center pipe 63 can be rotated on the center fire air inlet pipe 12 to adjust the distance of the center pipe 63 extending out of the center fire air inlet pipe 12, and then adjust the width of the center fire air supplement gap, so as to cope with different combustion efficiencies.

[0033] A spring 8 is further arranged on the air regulating pipe 63 and abuts against the air inlet seat 2 or the center fire nozzle, since the air regulating pipe 63 is movably screwed on the center fire air inlet pipe 12 and can freely rotate, which causes a problem that during long-distance transportation, the air regulating pipe 63 often rotates by itself on the center fire air inlet pipe 12 due to shaking and vibration, which causes the width of the center fire air supplement gap set at the factory to change, and by arranging a spring 8 to press the air regulating pipe 63, the spring 8 plays a role of compressing the air regulating pipe 63, so that the resistance of the air regulating pipe 63 when rotating is increased, thereby avoiding the phenomenon of self-rotation during transportation, and the center fire air supplement gap adjusted at the factory will not change when encountering shaking and vibration.

[0034] In the present scheme, the spring 8 is preferably in abutment with the surface of the center air outlet seat 22.

[0035] In the present scheme, the center air outlet seat 22 is preferably provided with a head portion, and the center fire nozzle is located on the head portion, and the head portion is inserted into the spring 8, so that the spring 8 has better fixing effect and can prevent the spring 8 from falling off.

[0036] In the present scheme, the gas supply mode can be that several independent air inlet interfaces are provided on the air inlet seat 2, each air inlet interface corresponding to a central flame nozzle and an outer ring flame nozzle. However, the design of the gas supply pipeline is complicated. Preferably, a central air inlet interface 21 is provided on the air inlet seat 2 and is connected to the central flame nozzle, and a horizontal outer ring air inlet pipe connecting the two outer ring flame nozzles is provided in the air inlet seat 2 and is connected to the outer ring air inlet interface.

[0037] Further optimization is preferably that the cup body 1 is provided with a left outer ring air inlet pipe and a right outer ring air inlet pipe which are opposite to the outer ring flame nozzles and are connected to the outer ring premixing cavities 13. The left air inlet pipe 61 and the right air inlet pipe 62 are respectively inserted into the left outer ring air inlet pipe and the right outer ring air inlet pipe and are fixed, so as to facilitate adjustment of the distance between the left air inlet pipe 61 and the right air inlet pipe 62 and the outer ring flame nozzles.

[0038] In the present scheme, the fire cap seat 3 comprises an outer ring gas groove 31 and an air inlet cavity 32 which is open downward and is connected to the outer ring gas groove 31. The inner ring premixing cavity is a circular ring premixing cavity 16 provided on the cup body 1. The inner ring wall plate of the circular ring premixing cavity 16 extends upward, is hollow and is provided with an axial hole 161 along the axis. The outer ring wall plate is provided with an inner interface 162 and an axial positioning groove 163. The axial positioning groove 163 is provided with two and is on a diameter line. The inner interface 162 and the axial positioning groove 163 are arranged from top to bottom.

[0039] The fire cap seat 3 further comprises a cylindrical sleeve 33 which is open upward and downward. The cylindrical sleeve 33 is connected to the outer ring gas groove 31 through a radial rib 34. The lower end of the cylindrical sleeve 33 is provided with an outer interface 331. The lower end of the outer interface is provided with a positioning plate 332. The positioning plate 332 is provided with two and is on a diameter line.

[0040] The central flame cap 4 comprises a hollow cap body 41 which is open downward, a hollow central pipe 42 which is open downward and a combustion hole 43 provided on the cap body.

[0041] The outer ring premixing cavity 13 and the air inlet cavity 32 are connected, the inner ring wall plate of the circular ring premixing cavity 16 extends into the cylindrical sleeve 33, the outer interface 331 is inserted into the inner interface 162, and the positioning plate 332 is inserted into the axial positioning groove 163. The cap body 41 is buckled with the cylindrical sleeve, and the central pipe 42 is inserted into the axial hole of the inner ring wall plate. With such a structure, the disassembly and assembly are convenient. When assembled, the outer ring premixing cavity 13 and the air inlet cavity 32 are directly connected, and the rotation of the fire cap seat 3 relative to the cup body 2 is prevented.

[0042] As a further improvement of the utility model: the axis hole 161 of the inner ring wall plate of the circular ring premixing cavity 16 is equipped with a plugging plate 164.

[0043] As a further improvement of the utility model: the center fire cap 4 further comprises a radial discharge protrusion 44 arranged on the top and a flow blocking and shunting protrusion 45 arranged on the top plate,

[0044] The end of the discharge protrusion 44 cooperates with the ignition needle 71, and there is a gap between the end of the discharge protrusion 44 and the ignition needle 71 on the horizontal plane, as shown in Fig. 1. As shown in Fig. 8, viewed along the negative direction of the Z axis, there is a gap between the end of the discharge protrusion 44 and the ignition needle 71 on the XY plane. The arrangement of the flow blocking and shunting protrusion 45 prevents the liquid flowing on the top of the center fire cap 4 from blocking the combustion hole below the discharge protrusion, thereby achieving accurate ignition, and also prevents the liquid from flowing onto the discharge protrusion 44.

[0045] As a further improvement of the utility model: the discharge protrusion 44 is triangular and the top corner is rounded.

[0046] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A stove burner, comprising a cup body, an air inlet seat, a fire cover seat, a central fire cover, and an outer ring fire cover, characterized in that: The cup body is provided with an inner ring premixing cavity and an outer ring premixing cavity located outside the inner ring premixing cavity, the cup body is provided with a center fire air inlet pipe communicating with the inner ring premixing cavity and an outer ring air inlet pipe communicating with the outer ring premixing cavity, and the center fire air inlet pipe is provided with an internal thread; The air intake seat is provided with a center fire nozzle facing the center fire air intake pipe and an outer ring fire nozzle facing the outer ring air intake pipe, and an outer ring air supply gap is formed between the outer ring fire nozzle and the outer ring air intake pipe; An air conditioning tube is provided with an external thread screwed to the internal thread, a center fire air supply gap is formed between the outer end surface of the air conditioning tube and the center fire nozzle, the air conditioning tube is used to rotate on the center fire air intake pipe to adjust the width of the center fire air supply gap, and the air conditioning tube is provided with a spring that abuts against the air intake seat or the center fire nozzle.

2. The stove burner according to claim 1, characterized in that: The air inlet seat includes a central air outlet seat arranged at the inner end, the central fire nozzle is arranged on the central air outlet seat, and the spring abuts against the central air outlet seat.

3. The stove burner according to claim 2, characterized in that: A head is provided on the central air outlet seat, the central fire nozzle is located on the head, and the head is inserted into a spring.

4. The stove burner according to claim 2, characterized in that: The outer ring air inlet pipe is a left air inlet pipe and a right air inlet pipe respectively located on both sides of the center fire air inlet pipe. The air inlet seat is provided with a left air outlet seat and a right air outlet seat located on the left and right sides of the center air outlet seat. The outer ring fire nozzles are respectively arranged on the left air outlet seat and the right air outlet seat.

5. The stove burner according to claim 4, characterized in that: The bottom of the cup body is provided with a left outer ring air intake pipe and a right outer ring air intake pipe which are directly facing the outer ring fire nozzle and connected with the outer ring premixing chamber. The left air intake pipe and the right air intake pipe are respectively inserted into the left outer ring air intake pipe and the right outer ring air intake pipe and fixed.

6. The stove burner according to claim 1, characterized in that: The cup body includes a base plate, a primary air intake cavity, an ignition needle fixing hole and an induction needle fixing hole arranged on the base plate; the fire cover seat includes an outer ring gas groove and an air intake cavity with a lower opening connected to the outer ring gas groove; the inner ring premixing cavity is a circular premixing cavity arranged on the cup body; the inner ring wall plate of the circular premixing cavity extends upward, and the outer ring wall plate is provided with an inner interface and an axial positioning groove, The fire cover seat also includes a cylindrical sleeve with upper and lower openings, the cylindrical sleeve is connected to the outer ring gas groove through radial ribs, the lower end of the cylindrical sleeve is provided with an external interface, and the lower end of the external interface is provided with a positioning plate; The central fire cover comprises a hollow cover body with an opening at the bottom, a hollow central tube with an opening at the bottom, and a combustion hole provided in the cover body; The outer ring premixing chamber and the air inlet chamber are connected, the inner ring wall plate of the circular ring premixing chamber extends into the cylindrical sleeve, the outer interface is inserted into the inner interface, and the positioning plate is inserted into the axial positioning groove; the cover body is buckled with the cylindrical sleeve, and the center tube is plugged into the axial hole of the inner ring wall plate.

7. The stove burner according to claim 6, characterized in that: A blocking plate is provided in the axial hole of the inner ring wall plate of the annular premixing chamber.

8. The stove burner according to claim 6, characterized in that: The center fire cover also includes a discharge protrusion arranged on the top and extending radially and a flow blocking and diverting protrusion arranged on the top plate. The end of the discharge protrusion cooperates with the ignition needle, and there is a distance between the end of the discharge protrusion and the ignition needle on the horizontal plane.

9. The stove burner according to claim 6, characterized in that: The discharge protrusion is triangular in shape and has rounded corners.

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