Gas supply assembly of combustor and gas stove comprising same

Abstract

The utility model provides a burner gas supply assembly and a gas stove including the same, the gas supply assembly comprises a nozzle and an injection pipe, the outer side surface of the nozzle is provided with a smooth section and a first thread, the smooth section and the first thread are sequentially formed on the surface of the nozzle along the gas flowing direction, and the first thread is provided with a second thread. The diameter of the nozzle at the smooth section is smaller than the tooth root diameter of the first thread, an injection pipe hole used for containing the nozzle is formed in the injection pipe, a second thread matched with the first thread is formed in the inner wall of the injection pipe hole, the length of the smooth section is larger than that of the second thread, and the nozzle is arranged in the injection pipe hole in a penetrating mode. And the smooth section of the nozzle is positioned at the second thread of the injection pipe. After the nozzle is screwed into the injection pipe, the smooth section can be located at the position of the second thread, the nozzle is connected with the injection pipe and cannot fall off, the nozzle has a certain moving freedom degree in an injection pipe hole, certain deviation containing can be conducted on internal stress generated in the installation process, and out-of-tolerance of a gas mixing chamber is avoided.

Description

Technical Field

[0001] The utility model relates to a gas cooker, in particular to a gas supply component of a burner and a gas cooker comprising the same. Background Art

[0002] When assembling a gas cooker, one end of the copper gas pipe is a bell mouth, which is connected to the nozzle ball head of the valve body and is fastened with a nut to prevent air leakage. The other end of the copper gas pipe is a nozzle, and the nozzle and the ejector tube are also connected by a nut. The ejector tube and the base are connected with screws and sealant, and finally the base is fixed to the chassis with the stove head screws. The copper gas pipe is a connecting component of the two nozzles, and its shape and position dimensions are more critical. In fact, when one end of the copper gas pipe is fixed to the nozzle of the valve body, the nozzle at the other end is often not completely aligned with the ejector tube (coaxiality or fitting distance cannot be guaranteed). In this case, after several nuts, threads, and screws are forcibly fixed, the copper gas pipe will form a certain torque on the nozzle, which can only be offset by the deformation of the components of the entire system, and finally reflected on the chassis. The bottom surface of the chassis is deformed, causing the burner to usually tilt inward.

[0003] When designing some burners, the mixing chamber and the base are designed as two independent parts. After assembly, there will be a certain gap between the mixing chamber and the liquid tray. The gap requirements are: (1) greater than 0.1mm. If the gap is too small, such as 0mm, the mixing chamber may interfere with the liquid tray and be lifted up by the liquid tray, and there is a risk of leakage between the mixing chamber and the base; (2) less than 1.5mm. If the gap here is too large, it will affect the refinement of the stove and affect its appearance.

[0004] In summary, the copper gas pipe cannot be completely aligned with the two nozzles. The manufacturing tolerance of the copper gas pipe and the shape and position tolerance of the two nozzles will inevitably cause torque after fixation. The greater the deviation and the greater the torque, the greater the corresponding deformation of the chassis, and the greater the inclination of the base caused by the deformation of the bottom surface of the chassis. The mixing chamber and the base screws will tilt after being fixed. The liquid tray is parallel to the panel, and the panel and the skirt of the chassis are matched, so they can be regarded as parallel surfaces. Therefore, when the chassis is deformed, the gap between the mixing chamber and the liquid tray will tend to the limit, or even exceed the tolerance, resulting in problems such as excessive gap in the mixing chamber, which not only affects the aesthetics of the stove, but also causes air leakage. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the nozzle cannot be completely aligned with the ejector tube, thereby causing an out-of-tolerance in the gas mixing chamber, and to provide an air supply component of a burner and a gas stove comprising the same.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A gas supply assembly for a burner, comprising a nozzle and an ejector pipe, wherein the outer surface of the nozzle comprises a smooth section and a first thread, and along the flow direction of the gas, the smooth section and the first thread are sequentially formed on the surface of the nozzle, and the diameter of the nozzle at the smooth section is smaller than the tooth root diameter of the first thread;

[0008] The ejector tube has an ejector tube hole for accommodating the nozzle, and a second thread matching the first thread is formed on the inner wall of the ejector tube hole. The length of the smooth section is greater than the length of the second thread. The nozzle is inserted into the ejector tube hole, and the smooth section of the nozzle is located at the second thread.

[0009] In the present technical solution, by arranging a smooth section and a first thread on the nozzle, the first thread matches the second thread on the ejector tube, the diameter of the smooth section is smaller than the root diameter of the first thread, when the nozzle starts to be screwed, the first thread and the second thread gradually mesh, as the nozzle continues to penetrate the ejector tube hole, the first thread falls into the ejector tube, and the smooth section is at the second thread. Since the diameter of the smooth section is smaller than the diameter of the ejector tube hole, and the length of the smooth section is greater than the length of the second thread, the nozzle and the ejector tube are no longer in a tight fit relationship, but the nozzle can have a certain degree of freedom of movement in the ejector tube hole. In the traditional solution, when the nozzle and the ejector tube are tightly fitted through the thread, the stress generated in the process of screwing the copper air pipe during the assembly process will be transmitted to the chassis through the ejector tube, eventually causing the chassis to deform. In the present technical solution, when the nozzle has a certain degree of freedom of movement in the ejector tube hole, this degree of freedom of movement accommodates the stress generated in the process of screwing the copper air pipe during the assembly process with a certain deviation, thereby reducing the internal stress transmitted to the base through the ejector tube, reducing the deformation of the chassis, and finally avoiding the mixing chamber gap from exceeding the tolerance. At the same time, the first thread and the second thread have a limiting effect on the connection between the nozzle and the ejection tube hole, preventing the nozzle from being separated from the ejection tube. Since the end of the nozzle is the first thread, and the inner wall of the ejection tube is the second thread meshing with the first thread, after the first thread falls into the ejection tube, the nozzle must be reversely twisted for multiple turns to separate the nozzle from the ejection tube, and the internal stress generated after the nozzle and the ejection tube are installed will not cause the nozzle to rotate multiple turns. Therefore, the first thread and the second thread ensure that the nozzle will not be separated from the ejection tube.

[0010] Preferably, the difference between the tooth top radius of the second thread and the radius of the smooth section is D, and D≤0.2 mm.

[0011] In the technical solution, by setting the range of D to ≤0.2 mm, a large deviation in the coaxiality between the smooth section and the ejector tube is avoided. When D≤0.2 mm, the coaxiality between the nozzle and the ejector tube is within a preferred range.

[0012] Preferably, the end of the nozzle close to the ejector tube has a chamfer.

[0013] In this technical solution, by providing a chamfer at the end of the nozzle close to the ejector tube, the nozzle is guided to align with the ejector tube hole when the nozzle and the ejector tube are installed, and the chamfer has a guiding effect on the connection between the nozzle and the ejector tube.

[0014] Preferably, the nozzle further comprises a limiting structure, wherein the limiting structure, the smooth section and the thread are sequentially formed on the nozzle along the direction of gas flow, and the limiting structure is used to limit the freedom of movement of the nozzle along the direction of gas flow.

[0015] In the present technical solution, by setting a limiting structure on the nozzle, the limiting structure can limit the freedom of movement of the limiting structure in the direction of gas flow, that is, limit the freedom of the nozzle to slide into the ejector tube, thereby preventing the ejection effect of the ejector tube from being reduced due to the excessive length of the nozzle extending into the ejector tube.

[0016] Preferably, the limiting structure is an annular structure formed on the outer surface of the nozzle, and the outer diameter of the annular structure is greater than the tooth top diameter of the second thread.

[0017] In the present technical solution, by providing an annular structure with a diameter greater than or equal to the diameter of the ejector tube hole on the nozzle, the annular structure has a better limiting effect than other limiting structures, such as providing one or more protrusions on the nozzle.

[0018] Preferably, the nozzle further comprises a hexagonal structure formed on the outer surface of the nozzle, the hexagonal structure is used for connection with a wrench to fix the nozzle and the air supply pipe, and the limiting structure is a columnar structure extending from the smooth section to the hexagonal structure.

[0019] In this technical solution, the nozzle is axially limited by setting a columnar structure with an outer diameter larger than the ejector tube hole between the smooth section and the hexagonal structure, which not only makes the limiting effect of the limiting structure better, but also facilitates the subsequent installation of other parts.

[0020] Preferably, the cooker further comprises an elastic member and an air damper plate, wherein the air damper plate is fitted with the pipe opening of the ejection pipe, and the nozzle and the air damper plate clamp the elastic member.

[0021] In the technical solution, an elastic member is sleeved on the nozzle, and the elastic member exerts elastic force on the nozzle and the air regulating plate, so that the air regulating plate can be fixed at the nozzle opening of the ejector tube.

[0022] Preferably, the nozzle further comprises a hexagonal structure formed on the outer surface of the nozzle, the hexagonal structure is used for connection with a wrench to fix the nozzle and the air supply pipe, and one end of the elastic member abuts against the hexagonal structure.

[0023] In the present technical solution, by abutting the elastic member against the hexagonal structure used for connection with a wrench to fix the nozzle and the air supply pipe, the hexagonal structure has the functions of connection with a wrench and abutting the elastic member, achieving the effect of one component having dual functions and making the overall structure more compact.

[0024] Preferably, the elastic member is a coil spring, and the coil spring is sleeved on the nozzle.

[0025] A gas stove comprises the gas supply assembly of the burner as described above.

[0026] In the present technical solution, by using the gas supply assembly as described above in the gas stove, after the gas supply pipe is connected to the nozzle, the nozzle has a certain degree of freedom of movement in the ejector tube hole, and can accommodate a certain deviation of the stress generated during the assembly of the gas supply pipe and the nozzle, thereby reducing the internal stress transmitted to the base by the ejector tube, reducing the deformation of the base, and avoiding out-of-tolerance of the mixing chamber.

[0027] The positive progress effect of the utility model is that by arranging a smooth section and a first thread on the nozzle, the first thread matches the second thread on the ejector tube, the diameter of the smooth section is smaller than the ejector tube hole, when the nozzle starts to be screwed, the first thread and the second thread gradually mesh, as the nozzle continues to go deeper into the ejector tube hole, the first thread falls into the ejector tube, and the smooth section is at the second thread. Since the diameter of the smooth section is smaller than the diameter of the ejector tube hole, and the length of the smooth section is greater than the length of the second thread, the nozzle and the ejector tube are no longer in a tight fit relationship, but the nozzle can have a certain degree of freedom of movement in the ejector tube hole. In the traditional scheme, when the nozzle and the ejector tube are tightly fitted through the thread, the stress generated in the process of screwing the copper air pipe during the assembly process will be transmitted to the chassis through the ejector tube, eventually causing the chassis to deform. In the technical scheme, when the nozzle has a certain degree of freedom of movement in the ejector tube hole, this degree of freedom of movement accommodates the stress generated in the process of screwing the copper air pipe during the assembly process to a certain degree of deviation, thereby reducing the internal stress transmitted to the base through the ejector tube, reducing the deformation of the chassis, and finally avoiding the mixing chamber gap from exceeding the tolerance. At the same time, the first thread and the second thread have a limiting effect on the connection between the nozzle and the ejector tube hole, preventing the nozzle from detaching from the ejector tube. Since the end of the nozzle is the first thread, and the inner wall of the ejector tube is the second thread meshing with the first thread, after the first thread falls into the ejector tube, the nozzle must be reversely twisted for multiple turns to detach the nozzle from the ejector tube. The internal stress generated after the nozzle and the ejector tube are installed will not cause the nozzle to rotate for multiple turns. Therefore, the first thread and the second thread ensure that the nozzle will not detach from the ejector tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1This is a schematic structural diagram of a nozzle according to a preferred embodiment of the utility model.

[0029] Figure 2 The figure is a schematic cross-sectional structure diagram of a nozzle according to a preferred embodiment of the utility model.

[0030] Figure 3 It is a structural schematic diagram of an air supply assembly according to a preferred embodiment of the utility model.

[0031] Figure 4 The figure is a schematic structural diagram of an ejector tube according to a preferred embodiment of the utility model.

[0032] Figure 5 This is a structural schematic diagram of a preferred embodiment of the utility model in which the first thread begins to engage with the second thread.

[0033] Figure 6 This is a structural schematic diagram of a preferred embodiment of the utility model when the smooth section part enters the ejection tube hole.

[0034] Figure 7 This is a structural schematic diagram of a nozzle and a spray pipe connected in a preferred embodiment of the utility model.

[0035] Description of reference numerals:

[0036] Air supply assembly 001

[0037] Nozzle 1

[0038] Smooth segment 101

[0039] First thread 102

[0040] Chamfer 103

[0041] Limiting structure 104

[0042] Hexagonal structure 105

[0043] Flow direction L

[0044] Ejector tube 2

[0045] Injection tube hole 201

[0046] Second thread 202

[0047] Elastic part 3

[0048] Air flap 4 DETAILED DESCRIPTION

[0049] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0050] like Figure 1-Figure 7As shown, this embodiment provides a gas supply assembly 001 for a burner. Figure 3 As shown, the gas supply assembly 001 includes a nozzle 1 and an ejector pipe 2. The nozzle 1 connected to the gas supply pipe sprays gas to the ejector pipe 2 to achieve the purpose of ejecting air. Figure 2 and Figure 3 As shown, the outer surface of the nozzle 1 includes a smooth section 101 and a first thread 102 (the first thread has been simplified in the figure). Along the direction of gas flow, the smooth section 101 and the first thread 102 are sequentially formed on the surface of the nozzle 1. The diameter of the nozzle 1 at the smooth section 101 is smaller than the root diameter of the first thread 102. Correspondingly, as shown in FIG. Figure 4 As shown, the ejector tube 2 is provided with an ejector tube hole 201 for accommodating the nozzle 1, and a second thread 202 matching the first thread 102 is formed on the inner wall of the ejector tube hole 201 (the second thread 202 has been simplified in the figure), the length of the smooth section 101 is greater than the length of the second thread 202, the nozzle 1 is inserted into the ejector tube hole 201, and the smooth section 101 of the nozzle 1 is located at the second thread 202 of the ejector tube 2. By arranging the smooth section 101 and the first thread 102 on the nozzle 1, while satisfying the installation and positioning of the nozzle 1 and the ejector tube 2, the nozzle 1 has a certain degree of freedom of movement in the ejector tube hole 201, and the degree of freedom of movement is mainly the degree of freedom of movement along the axial direction of the nozzle 1, and the degree of freedom of movement can accommodate a certain deviation of the stress generated in the installation process of the air supply component, thereby avoiding deformation of the chassis and out-of-tolerance of the mixing chamber.

[0051] Specifically, if Figure 5 As shown, in the process of installing the nozzle 1 to the ejector tube 2, the first thread 102 of the nozzle 1 is first aligned with the second thread 202 on the ejector tube 2, and when the nozzle 1 is screwed, the first thread 102 and the second thread 202 are gradually engaged, and in the process of continuously screwing the nozzle 1, the nozzle 1 also continuously penetrates into the ejector tube hole 201. Figure 6 As shown, during the continuous screwing process of the nozzle 1, the diameter of the smooth section 101 is smaller than the root diameter of the first thread 102, that is, the diameter of the smooth section 101 is smaller than the top diameter of the second thread 202, and the smooth section 101 gradually enters the ejection tube hole 201. As the length of the smooth section 101 is greater than the length of the second thread 202, finally Figure 7As shown, the first thread 102 and the second thread 202 are separated from each other, so that the first thread 102 completely falls into the inside of the ejector tube 2, and the smooth section 101 is at the second thread 202, and the nozzle 1 is connected to the ejector tube 2. Since the diameter of the smooth section 101 is smaller than the root diameter of the first thread 102 and the length of the smooth section 101 is greater than the length of the second thread 202, the nozzle 1 and the ejector tube 2 are not in a tight fit relationship, but the nozzle 1 can have a certain degree of freedom of movement in the ejector tube hole 201. This degree of freedom of movement accommodates a certain amount of deviation of the stress generated in the process of screwing the copper air pipe during the assembly process, thereby reducing the internal stress transmitted to the base through the ejector tube 2. Since the base and the chassis are connected by screws, the corresponding internal stress transmitted from the base to the chassis is also reduced, which also reduces the deformation of the chassis, and ultimately avoids the mixing chamber from being out of tolerance. At the same time, the first thread 102 and the second thread 202 have a limiting effect on the connection between the nozzle 1 and the ejector tube hole 201, preventing the nozzle 1 from being separated from the ejector tube 2. Since the end of the nozzle 1 is the first thread 102, and the inner wall of the ejector tube 2 is the second thread 202 meshing with the first thread 102, after the first thread 102 falls into the ejector tube 2, the nozzle 1 must be reversely twisted for several turns to separate the nozzle 1 from the ejector tube 2. The internal stress generated after the nozzle 1 and the ejector tube 2 are installed will not cause the nozzle 1 to rotate multiple turns. Therefore, the first thread 102 and the second thread 202 ensure that the nozzle 1 will not be separated from the ejector tube 2.

[0052] Specifically, if Figure 7 As shown, the difference between the tooth top radius of the second thread 202 and the radius of the smooth section 101 is D, where D≤0.2mm. Since the coaxiality between the nozzle 1 and the ejector tube 2 has an important influence on the ejection effect of the ejector tube 2 and the smoke generated during the combustion process, the higher the coaxiality, the better the ejection effect and the less smoke generated. By controlling the range of D within 0.2mm, while ensuring that the nozzle 1 can have a certain degree of freedom of movement in the ejector tube hole 201, it also ensures that the coaxiality of the nozzle 1 and the ejector tube 2 is within a preferred range.

[0053] Of course, in other embodiments, while ensuring that the coaxiality of the nozzle 1 and the ejector tube 2 is acceptable, the value of D may be slightly greater than 0.2 mm, and the deeper the ejector tube hole 201 is, the larger the optimal value range of D is.

[0054] In this embodiment, if Figure 1 and Figure 2 As shown, the end of the nozzle 1 near the ejection tube 2 also has a chamfer 103. By providing the chamfer 103 at the end of the nozzle 1, when the nozzle 1 is connected to the ejection tube 2, the chamfer 103 can guide the nozzle 1 to align with the ejection tube hole 201, and the chamfer 103 has a guiding effect on the connection between the nozzle 1 and the ejection tube 2.

[0055] In addition, in the present embodiment, the nozzle 1 further comprises a limiting structure 104. The limiting structure 104, the smooth section 101 and the thread are sequentially formed on the nozzle 1 along the direction of gas flow. The limiting structure 104 is used to limit the freedom of movement of the nozzle 1 along the gas flow direction L. The freedom of movement of the nozzle 1 in the ejector tube hole 201 is the freedom of movement along the gas flow direction L or opposite to the gas flow direction L. The first thread 102 on the nozzle 1 and the second thread 202 on the ejector tube 2 prevent the nozzle 1 from being separated from the ejector tube hole 201, and limit the freedom of movement of the nozzle 1 in the opposite direction to the gas flow direction L. In the direction of gas flow, the limiting structure 104 is provided to limit the movement of the nozzle 1, and prevent the nozzle 1 from extending into the ejector tube 2 for too long, which results in a decrease in the ejection effect of the ejector tube 2.

[0056] Specifically, the limiting structure 104 is an annular structure formed on the outer surface of the nozzle 1, and the diameter of the annular structure is larger than the tooth top diameter of the second thread 202. By arranging an annular structure with a diameter larger than the tooth top diameter of the second thread 202 on the outer surface of the nozzle 1, the annular structure limits the freedom of movement of the nozzle 1 in the direction of gas movement, and the annular structure has limits at all locations around the nozzle 1, so the limiting effect is better.

[0057] Of course, in other embodiments, the limiting structure 104 may also be in other forms, such as providing a plurality of protrusions on the outer surface of the nozzle 1, etc., which will not be described in detail here.

[0058] In this embodiment, the air supply assembly 001 also includes an air supply pipe, and a hexagonal structure 105 is formed on the outer surface of the nozzle 1. The hexagonal structure 105 is used for connecting with a wrench to fix the nozzle 1 and the air supply pipe, and the limiting structure 104 is a columnar structure extending from the smooth section 101 to the hexagonal structure 105. The hexagonal structure 105 is provided on the nozzle 1, so that the air supply pipe and the nozzle 1 can be connected and fixed conveniently. By providing a columnar structure with an outer diameter larger than the ejector tube hole 201 between the smooth section 101 and the hexagonal structure 105, the nozzle 1 is axially limited, and the diameters from the smooth section 101 to the hexagonal structure 105 are equal, which is more convenient for the subsequent installation of other parts.

[0059] In this embodiment, the air supply assembly 001 further includes an elastic member 3 and a damper plate 4, the damper plate 4 fits with the nozzle of the ejector tube 2, the nozzle 1 and the damper plate 4 clamp the elastic member 3, and the elastic member 3 exerts an elastic force on the nozzle 1 and the damper plate 4. The damper plate 4 is pressed against the air inlet side of the ejector tube 2 by using the elastic member 3, so that the damper plate 4 can fit and fix with the ejector tube 2.

[0060] Specifically, the elastic member 3 in this embodiment is a spring, which is sleeved on the nozzle 1, specifically on the columnar structure, so that one end of the spring abuts against the hexagonal structure 105 and the other end abuts against the air flap to fix the air flap.

[0061] This embodiment also provides a gas stove, which includes the gas supply assembly 001 as described above. By setting the gas supply assembly 001 as described above in the gas stove, the gas supply pipe, the nozzle 1 and the ejector pipe 2 of the gas supply assembly 001 generate less stress or no stress during the connection process, and the gas supply assembly 001 is installed in the gas stove, which is not easy to cause the chassis to deform or reduce the deformation of the chassis, thereby avoiding the mixing chamber from exceeding the tolerance.

[0062] Specifically in this embodiment, Figure 2 and Figure 4 As shown, each burner of the gas stove is provided with two nozzles 1 and two ejector tubes 2. Two ejector tubes 2 constitute one ejector. The technical solution of providing two nozzles for each burner is prior art and will not be described in detail here.

[0063] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A gas supply assembly for a burner, comprising a nozzle and an ejector pipe, characterized in that: The outer surface of the nozzle includes a smooth section and a first thread, and along the flow direction of the gas, the smooth section and the first thread are sequentially formed on the surface of the nozzle, and the diameter of the nozzle at the smooth section is smaller than the root diameter of the first thread; The ejector tube has an ejector tube hole for accommodating the nozzle, and a second thread matching the first thread is formed on the inner wall of the ejector tube hole. The length of the smooth section is greater than the length of the second thread. The nozzle is inserted into the ejector tube hole, and the smooth section of the nozzle is located at the second thread.

2. The gas supply assembly of the burner according to claim 1, characterized in that: The difference between the tooth top radius of the second thread and the radius of the smooth section is D, and D≤0.2 mm.

3. The gas supply assembly of the burner according to claim 1, characterized in that: The end of the nozzle close to the ejection tube has a chamfer.

4. The gas supply assembly of the burner according to claim 1, characterized in that: The nozzle also includes a limiting structure. Along the direction of gas flow, the limiting structure, the smooth section and the thread are sequentially formed on the nozzle. The limiting structure is used to limit the freedom of movement of the nozzle along the direction of gas flow.

5. The gas supply assembly of the burner according to claim 4, characterized in that: The limiting structure is an annular structure formed on the outer surface of the nozzle, and the outer diameter of the annular structure is greater than the tooth top diameter of the second thread.

6. The gas supply assembly of the burner according to claim 4, characterized in that: The nozzle also includes a hexagonal structure formed on the outer surface of the nozzle, the hexagonal structure is used for connection with a wrench to fix the nozzle and the air supply pipe, and the limiting structure is a columnar structure extending from the smooth section to the hexagonal structure.

7. The air supply assembly according to claim 1, characterized in that: The air supply assembly also includes an elastic member and a damper plate. The damper plate is fitted with the pipe opening of the ejection pipe, and the nozzle and the damper plate clamp the elastic member.

8. The gas supply assembly of the burner according to claim 7, characterized in that: The nozzle further comprises a hexagonal structure formed on the outer surface of the nozzle, the hexagonal structure is used for connection with a wrench to fix the nozzle and the air supply pipe, and one end of the elastic member abuts against the hexagonal structure.

9. The gas supply assembly of the burner according to claim 7, characterized in that: The elastic member is a coil spring, and the coil spring is sleeved on the nozzle.

10. A gas stove, characterized in that: It comprises a gas supply assembly of the burner according to any one of claims 1 to 9.

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