Combustor and gas hob

Abstract

The utility model discloses a kind of combustor and gas cooking utensils, it is related to the technical field of cooking utensils, including gas mixing chamber and base, the base is provided with first component assembly and second component assembly, the gas mixing chamber is provided with first hole and second hole, the gas mixing chamber and base are provided with the limiting structure for the height of the gas mixing chamber in vertical direction is positioned, the first hole is positioning hole, the outer wall of the first component assembly and the hole wall of the positioning hole are attached;The second hole is guide hole, first installation gap is left between the outer wall of the second component assembly and the hole wall of the guide hole;The limiting structure includes first limiting portion being arranged in the gas mixing chamber, second limiting portion being arranged in the base, the first limiting portion and the second limiting portion have second installation gap in horizontal direction.The utility model provides a kind of combustor and gas cooking utensils capable of improving installation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of stoves, and in particular to a burner and a gas stove. Background Technology

[0002] In the design and application of existing top-intake burners, precise positioning of the mixing chamber is crucial for ensuring normal combustion and improving assembly efficiency. In existing structures, the burner base houses the ignition needle, thermocouple, and part of a limiting structure. The mixing chamber has mounting holes corresponding to these components. However, manufacturing errors in the mounting hole positions for the ignition needle, thermocouple, or limiting structure can lead to mismatches between these components and their respective insertion points, making installation impossible. Utility Model Content

[0003] Firstly, this utility model provides a burner that can improve installation efficiency and accuracy.

[0004] To achieve the above objectives, this utility model discloses a burner, including a mixing chamber and a base. A first component assembly and a second component assembly are disposed on the base. The mixing chamber has a first hole corresponding to the insertion of the first component assembly and a second hole corresponding to the insertion of the second component assembly. The mixing chamber and the base are provided with a limiting structure for positioning the height of the mixing chamber in the vertical direction. The first hole is a positioning hole, with at least a portion of the outer wall of the first component assembly and at least a portion of the hole wall of the positioning hole abutting together. The second hole is a guide hole, with a first installation gap between the outer wall of the second component assembly and the hole wall of the guide hole. The limiting structure includes a first limiting portion disposed in the mixing chamber and a second limiting portion disposed on the base. The first limiting portion and the second limiting portion are abutting together in the vertical direction and have a second installation gap in a horizontal direction perpendicular to the vertical direction.

[0005] Optionally, one of the first limiting portion and the second limiting portion is a protrusion extending in a vertical direction, and the other of the first limiting portion and the second limiting portion is a recess extending in a vertical direction. At least a portion of the protrusion extends into the recess, and the outer wall of the protrusion and the inner wall of the recess form the second mounting gap in the horizontal direction.

[0006] Optionally, one of the first component and the second component includes an ignition needle, and the other of the first component and the second component includes a thermocouple.

[0007] Optionally, the first component assembly includes an ignition needle or the thermocouple, and a mounting portion connected to the base and located on the periphery of the ignition needle or the thermocouple. The mounting portion is provided with a mounting hole for the ignition needle or the thermocouple to pass through, and the outer wall of the mounting portion fits against the wall of the first hole.

[0008] Optionally, at least a portion of the inner diameter of the mounting hole gradually decreases from top to bottom along the vertical direction and forms a mounting cone surface, and at least a portion of the outer diameter of the ignition needle or the outer peripheral wall of the thermocouple gradually decreases from top to bottom along the vertical direction and contacts the mounting cone surface.

[0009] Optionally, the base is provided with a clearance hole for the ignition needle to pass through, and there is a clearance space between the outer wall of the ignition needle and the inner wall of the clearance hole.

[0010] Optionally, an elastic member is provided between the portion of the ignition needle that passes downward through the vent hole and the base, with the two ends of the elastic member abutting against the ignition needle and the base, respectively.

[0011] Optionally, the elastic member includes a retaining ring connected to the ignition needle and a spring connected between the retaining ring and the base, with one end of the spring abutting against the retaining ring and the other end of the spring abutting against the base.

[0012] Optionally, the inner diameter of the second hole is smaller than the size of the top of the first component assembly.

[0013] Secondly, this utility model provides a gas stove that can improve the installation efficiency between the mixing chamber and the base.

[0014] To achieve the above objectives, this utility model discloses a gas stove, including a burner described in the above technical solution.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: the inner wall of the first hole and the outer wall of the first component assembly are fitted together to limit the mixing chamber in the horizontal direction; the first limiting part and the second limiting part are fitted together in the vertical direction to limit the mixing chamber in the vertical direction; there is a first installation gap between the inner wall of the second hole and the outer wall of the second component assembly, and a second installation gap between the first limiting part and the second limiting part in the horizontal direction. This makes the second hole and the second component assembly, and the first limiting part and the second limiting part, only have a guiding effect in the vertical direction. In this way, not only is the horizontal fitting of the inner wall of the first hole and the first component assembly and the vertical fitting of the first limiting part and the second limiting part used to achieve vertical and horizontal limiting between the mixing chamber and the base, but also the first and second installation gaps are used to reserve installation space, avoiding the problem that the mixing chamber and the base cannot be installed due to manufacturing errors between the ignition needle, thermocouple, or limiting structure and their corresponding installation hole positions, thus improving installation efficiency. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a burner disclosed in this utility model; Figure 2 This is a bottom view of the mixing chamber of a burner disclosed in this utility model; Figure 3 This is a top view of the base of a burner disclosed in this utility model; Figure 4 This is a cross-sectional view of the base of a burner disclosed in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Mixing chamber; 100. Injector tube; 2. Base; 3. Ignition needle; 31. Mounting part; 310. Mounting hole; 311. Mounting cone surface; 4. Thermocouple; 5. First hole; 6. Second hole; 60. First mounting gap; 7. Limiting structure; 70. Second mounting gap; 71. Protrusion; 72. Recess; 8. Flame cap; 9. Clearance hole; 10. Elastic member; 101. Spring; 102. Retaining ring; 11. Nozzle; 12. Adjusting bolt. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings. Example 1

[0019] This application discloses a burner, with reference to... Figure 1 and Figure 2The system includes a flame cap 8, a mixing chamber 1, and a base 2. A first component assembly and a second component assembly are mounted on the base 2. The mixing chamber 1 has a first hole 5 corresponding to the insertion of the first component assembly and a second hole 6 corresponding to the insertion of the second component assembly. A limiting structure 7 for positioning the height of the mixing chamber 1 in the vertical direction is provided on both the mixing chamber 1 and the base 2. In this embodiment, the mixing chamber 1 is installed on the base 2 vertically from top to bottom, with the horizontal direction perpendicular to the vertical direction.

[0020] The first hole 5 is a positioning hole, and at least part of the outer wall of the first component is in contact with the hole wall of the positioning hole. The second hole 6 is a guide hole, and a first installation gap 60 is left between the outer wall of the second component and the hole wall of the guide hole. The central axes of the first hole 5 and the second hole 6 both extend in the vertical direction. The first hole 5 and the second hole 6 are symmetrically distributed with respect to the center of the mixing chamber 1. In other embodiments, the first hole 5 and the second hole 6 may also be asymmetrical and have a certain distance between them.

[0021] In this embodiment, the first component includes an ignition needle 3, and the second component includes a thermocouple 4. The first component is positioned by the ignition needle 3 through a first hole 5, and the second component is guided by the thermocouple 4 through a second hole 6. In other embodiments, the first component includes a thermocouple 4, the second component includes an ignition needle 3, the first component is positioned by the thermocouple 4 through a first hole 5, and the second component is guided by the ignition needle 3 through a second hole 6.

[0022] Reference Figure 4 and Figure 1 In this embodiment, the first component assembly further includes a mounting portion 31 connected to the base 2 and located on the outer periphery of the ignition needle 3. The mounting portion 31 is provided with a mounting hole 310 for the ignition needle 3 to pass through, and the outer wall of the mounting portion 31 and the hole wall of the first hole 5 are fitted together.

[0023] The mounting part 31 is integrally formed on the base 2. The mounting part 31 is cylindrical and protrudes upward along the vertical direction from the upper surface of the base 2.

[0024] In other embodiments, the mounting part 31 may also be detachably and fixedly connected to the base 2.

[0025] In other embodiments, the second component assembly also includes a mounting portion 31, the outer wall of which forms a first mounting gap 60 between the outer wall of the mounting portion 31 and the wall of the second hole 6.

[0026] In other embodiments, the mounting part 31 is used to pass through the thermocouple 4.

[0027] In other embodiments, the mounting part 31 is part of the body of the ignition needle 3 or the thermocouple 4, that is, the hole wall of the first hole 5 is attached to the outer wall of the ignition needle 3 or the thermocouple 4.

[0028] To limit the height of the first component assembly, the inner diameter of the mounting hole 310 near the top gradually decreases vertically from top to bottom, forming a mounting cone surface 311. At least a portion of the outer diameter of the outer peripheral wall of the ignition needle 3 or thermocouple 4 gradually decreases vertically from top to bottom and contacts the mounting cone surface 311. When the ignition needle 3 or thermocouple 4 is inserted into the mounting hole 310, the height position of the ignition needle 3 or thermocouple 4 relative to the base 2 is determined when the outer wall of the ignition needle 3 or thermocouple 4 contacts the mounting cone surface 311. The mounting cone surface 311 reduces stress concentration between the ignition needle 3 or thermocouple 4 and the base 2 during collision.

[0029] In other embodiments, the mounting hole 310 is provided with stepped surfaces of different diameters, and the ignition needle 3 or thermocouple 4 is provided with a protrusion placed on the stepped surface. This structure constitutes an equivalent solution of this embodiment.

[0030] Reference Figure 3 and Figure 4 To reduce the possibility of the ignition needle 3 breaking upon impact, the base 2 is provided with a clearance hole 9 for the ignition needle 3 to pass through, and there is a clearance space between the outer wall of the ignition needle 3 and the inner wall of the clearance hole 9.

[0031] In this embodiment, the clearance hole 9 is located below the mounting hole 310, and the clearance hole 9 extends through the bottom of the base 2. The ignition needle 3 passes through the bottom of the clearance hole 9 and exits from the bottom of the base 2.

[0032] An elastic member 10 is provided between the part of the ignition needle 3 that protrudes from the bottom of the base 2 and the base 2. The two ends of the elastic member abut against the ignition needle 3 and the base 2 respectively, so that the ignition needle 3 and the base 2 are softly connected. By shaking the ignition needle 3, the impact force is offset, and the anti-breakage effect is achieved.

[0033] The elastic member 10 includes a retaining ring 102 connected to the bottom of the ignition needle 3 and a spring 101 connected between the retaining ring 102 and the base 2. A horizontally recessed annular groove for mounting the retaining ring 102 is provided near the bottom of the ignition needle 3. The diameter of the retaining ring 102 is larger than the diameter of the spring 101. The top of the spring 101 abuts against the bottom of the base 2, and the bottom of the spring 101 abuts against the upper surface of the retaining ring 102. In other embodiments, the elastic member can be made of other materials with elastic deformation capabilities, such as silicone or rubber.

[0034] In order to prevent mistaken installation of the mixing chamber 1, the inner diameter of the second hole 6 is smaller than the size of the top of the first element assembly. In this embodiment, the inner diameter of the second hole 6 is smaller than the diameter of the top of the ignition needle 3, so that when the second hole 6 and the ignition needle 3 are aligned, the mixing chamber 1 cannot be moved downward to complete the installation.

[0035] In order to limit the height of the mixing chamber 1 relative to the base 2 and to avoid manufacturing errors affecting the installation, the limiting structure 7 includes a first limiting part disposed on the mixing chamber 1 and a second limiting part disposed on the base 2. The first limiting part and the second limiting part are attached in the vertical direction, and the first limiting part and the second limiting part have a second installation gap 70 in the horizontal direction.

[0036] Specifically, the first limiting part has a horizontally arranged first limiting surface, and the second limiting part has a horizontally arranged second limiting surface. The first limiting surface and the second limiting surface are in contact, that is, the first limiting part and the second limiting part are in contact in the vertical direction. The side of the first limiting part is called the first side surface, and the side of the second limiting part is called the second side surface. Both the first side surface and the second side surface are vertically arranged, and a second installation gap 70 is formed between the first side surface and the second side surface.

[0037] Reference Figure 1 In this embodiment, the first limiting part is a recessed part 72 that is recessed vertically upward at the bottom of the mixing chamber 1, and the second limiting part is a protrusion 71 that extends vertically upward on the upper surface of the base 2. The protrusion 71 is a cylinder, and part of the protrusion 71 extends into the recessed part 72. When the top surface of the protrusion 71 contacts the bottom surface of the recessed part 72, the height position of the mixing chamber 1 on the base 2 is determined. At the same time, a second installation gap 70 is formed between the outer peripheral wall of the protrusion 71 and the inner wall of the recessed part 72.

[0038] In other embodiments, the first limiting portion is a protrusion 71 and the second limiting portion is a recess 72.

[0039] Reference Figure 3 In this embodiment, a plurality of nozzles 11 are arranged on the base 2 along the circumferential direction. The nozzles 11 include outer ring nozzles and inner ring nozzles. All the nozzles 11 are arranged radially along the mixing chamber 1. When the mixing chamber 1 is positioned by the first hole 5 and the ignition needle 3, and guided by the second hole 6 and the thermocouple 4, the circumferential position of the mixing chamber 1 relative to the base 2 can be determined. The height of the mixing chamber 1 relative to the base 2 can be determined by the limiting structure 7, so that the nozzles 11 on the base 2 can be aligned with the corresponding ejector tubes 100 on the mixing chamber 1.

[0040] Reference Figure 2 In this embodiment, an adjusting bolt 12 is provided on the mixing chamber 1. By changing the depth to which the adjusting bolt 12 is screwed into the ejector tube 100, the cross-sectional area of ​​the throat of the ejector tube 100 is changed, thereby reducing or increasing the primary air ejection capacity, changing the combustion state, and achieving stable combustion. Example 2

[0041] This application also discloses a gas stove, including a burner described in the above embodiments.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A burner comprising a mixing chamber (1) and a base (2), wherein a first element assembly and a second element assembly are disposed on the base (2), the mixing chamber (1) is provided with a first hole (5) corresponding to the insertion of the first element assembly and a second hole (6) corresponding to the insertion of the second element assembly, and the mixing chamber (1) and the base (2) are provided with a limiting structure (7) for positioning the height of the mixing chamber (1) in the vertical direction, characterized in that, The first hole (5) is a positioning hole, and at least a portion of the outer wall of the first component assembly is in contact with at least a portion of the hole wall of the positioning hole; the second hole (6) is a guide hole, and a first installation gap (60) is left between the outer wall of the second component assembly and the hole wall of the guide hole. The limiting structure (7) includes a first limiting part disposed in the mixing chamber (1) and a second limiting part disposed in the base (2). The first limiting part and the second limiting part are attached in the vertical direction and have a second installation gap (70) in the horizontal direction.

2. A burner according to claim 1, characterized in that, One of the first limiting portion and the second limiting portion is a protrusion (71) extending in a vertical direction, and the other of the first limiting portion and the second limiting portion is a recess (72) extending in a vertical direction. At least a portion of the protrusion (71) extends into the recess (72), and the outer wall of the protrusion (71) and the inner wall of the recess (72) form a second mounting gap (70) in the horizontal direction.

3. A burner according to claim 1, characterized in that, One of the first component assembly and the second component assembly includes an ignition needle (3), and the other of the first component assembly and the second component assembly includes a thermocouple (4).

4. A burner according to claim 3, characterized in that, The first component assembly includes an ignition needle (3) or the thermocouple (4), and a mounting part (31) connected to the base (2) and located on the outer periphery of the ignition needle (3) or the thermocouple (4). The mounting part (31) is provided with a mounting hole (310) for the ignition needle (3) or the thermocouple (4) to pass through. The outer wall of the mounting part (31) and the hole wall of the first hole (5) are in contact.

5. A burner according to claim 4, characterized in that, At least a portion of the inner diameter of the mounting hole (310) gradually decreases from top to bottom along the vertical direction and forms a mounting cone surface (311). At least a portion of the outer diameter of the outer peripheral wall of the ignition needle (3) or the thermocouple (4) gradually decreases from top to bottom along the vertical direction and contacts the mounting cone surface (311).

6. A burner according to claim 3, characterized in that, The base (2) is provided with a clearance hole (9) for the ignition needle (3) to pass through, and there is a clearance space between the outer wall of the ignition needle (3) and the inner wall of the clearance hole (9).

7. A burner according to claim 6, characterized in that, An elastic member (10) is provided between the portion of the ignition needle (3) that passes downward through the vent hole (9) and the base (2), with the two ends of the elastic member abutting against the ignition needle (3) and the base (2) respectively.

8. A burner according to claim 7, characterized in that, The elastic member (10) includes a retaining ring (102) connected to the ignition needle (3) and a spring (101) connected between the retaining ring (102) and the base (2). One end of the spring (101) abuts against the retaining ring (102), and the other end of the spring (101) abuts against the base (2).

9. A burner according to claim 3, characterized in that, The inner diameter of the second hole (6) is smaller than the size of the top of the first component assembly.

10. A gas stove, characterized in that, The burner includes any one of claims 1-9.

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