CN220958456U - Kitchen range nozzle mounting structure and kitchen range - Google Patents

Abstract

The utility model relates to the technical field of stoves and discloses a stove nozzle mounting structure and a stove. The kitchen range nozzle mounting structure comprises an injection pipe, a sealing cover plate and a nozzle, wherein the air inlet end of the injection pipe is connected with the sealing cover plate, the nozzle penetrates through the sealing cover plate and stretches into the injection pipe, an opening is formed in the circumferential direction of the air inlet end of the injection pipe, the nozzle stretches into the opening, and a detachable upper cover is arranged on the opening; the nozzle comprises an air inlet injection nozzle and a main nozzle, and the air inlet injection nozzle penetrates through the cover plate and extends into the injection pipe to be detachably connected with the main nozzle. When the kitchen range is maintained, only the upper cover of the injection pipe is required to be opened, and the main nozzle is detached from the air inlet injection nozzle, so that the kitchen range is convenient to detach, and the maintenance efficiency is improved; and the air inlet pipeline does not need to be disassembled, so that the air leakage phenomenon caused by the damage of the air inlet pipeline is avoided.

Description

Kitchen range nozzle mounting structure and kitchen range

Technical Field

The utility model relates to the technical field of stoves, in particular to a stove nozzle mounting structure and a stove.

Background

The stove comprises an air inlet pipeline, a combustor and a stove head, wherein one end of the air inlet pipeline is connected with an air source, and the other end of the air inlet pipeline is connected with the stove head through the combustor so as to realize ignition combustion of the stove head.

As shown in fig. 1, when replacing the nozzle 3 or other components, the conventional kitchen range typically uses a wrench to disassemble the air intake duct to which the nozzle 3 is connected, and then detach the nozzle 3 from the damper component 2. The operation easily causes the inlet pipe to break, and is difficult to be found by maintenance personnel, and then the gas leakage phenomenon occurs due to continuous use, and the safety accident is easy to cause.

Disclosure of utility model

One of the technical problems to be solved by the utility model is to provide a kitchen range nozzle mounting structure, which can effectively solve the problem that an air inlet pipeline is easy to damage when the nozzle is dismounted during maintenance of the existing kitchen range, and realize the purpose of quick replacement of the nozzle without damaging the air inlet pipeline.

The second technical problem to be solved by the utility model is to provide a stove which can effectively reduce the occurrence of air leakage and improve the use safety of the stove.

The first technical problem is solved by the following technical scheme:

The kitchen range nozzle mounting structure comprises an injection pipe, a cover plate and a nozzle, wherein the air inlet end of the injection pipe is connected with the cover plate, the nozzle penetrates through the cover plate and stretches into the injection pipe, an opening is formed in the circumferential direction of the air inlet end of the injection pipe, the nozzle stretches into the opening, and a detachable upper cover is arranged on the opening; the nozzle comprises an air inlet injection nozzle and a main nozzle, and the air inlet injection nozzle penetrates through the cover plate and stretches into the injection pipe to be detachably connected with the main nozzle.

Compared with the background technology, the kitchen range nozzle mounting structure provided by the utility model has the beneficial effects that:

Through setting up the opening in the circumference of the inlet end of injection pipe, the nozzle stretches into to the opening, sets up detachable upper cover on the opening, and the nozzle sets up to inlet injection nozzle and main nozzle two parts, and inlet injection nozzle's one end is connected with the air inlet pipeline, and the other end passes the closing cap and stretches into after the injection pipe and to dismantle with main nozzle and be connected. When the nozzle is maintained, only the upper cover of the injection pipe is required to be opened, and the main nozzle is detached from the air inlet injection nozzle, so that the disassembly is convenient, and the maintenance efficiency is improved; and the air inlet pipeline does not need to be disassembled, so that the air inlet pipeline is prevented from being damaged, and the air leakage phenomenon is avoided.

In one embodiment, the ejector tube comprises an air suction contraction section and a mixing diffusion section, the air suction contraction section comprises a bottom cover and an upper cover which are detachably connected, the upper cover is buckled on the bottom cover to seal the opening, and the mixing diffusion section is used for connecting the air suction contraction section and the burner.

In one embodiment, the bottom cover and the mixing diffuser are integrally provided.

In one embodiment, the front end of the mixing diffusion section is provided with a step, and the inner wall of the end, connected with the mixing diffusion section, of the upper cover is attached to the outer wall of the step.

In one embodiment, the bottom cover is provided with a stepped groove facing the upper cover, and the upper cover is provided with a flange step matched with the stepped groove.

In one embodiment, the upper cover and the bottom cover are provided with connecting lugs oppositely, and the two connecting lugs oppositely arranged are connected through connecting bolts.

In one embodiment, the inlet jet nozzle is threadably connected to the main nozzle.

In one embodiment, one end of the air inlet injection nozzle, which is far away from the main nozzle, is connected with an air inlet pipeline, one end of the air inlet injection nozzle is provided with a first external thread, the other end of the air inlet injection nozzle is provided with a second external thread, the main nozzle is provided with a first internal thread, the first external thread is in fit connection with the first internal thread, the air inlet pipeline comprises a connecting joint, a second internal thread is arranged in the connecting joint, and the second external thread is in fit connection with the second internal thread;

the kitchen range nozzle mounting structure further comprises an elastic piece, a limiting table is arranged on the air inlet injection nozzle and located between the first external thread and the second external thread, the elastic piece is sleeved on the air inlet injection nozzle, one end of the elastic piece is abutted to the limiting table, and the other end of the elastic piece is abutted to the cover plate.

In one embodiment, the cover plate is provided with a threaded hole, a connecting portion is convexly arranged on one side, close to the injection pipe, of the cover plate, the threaded hole penetrates through the connecting portion, and the air inlet injection nozzle is connected with the threaded hole in a threaded mode, and then extends out of the connecting portion to be connected with the main nozzle.

The second technical problem is solved by the following technical scheme:

a cooktop comprising a cooktop nozzle mounting structure as claimed in any one of the above aspects.

Compared with the background technology, the kitchen range has the following beneficial effects:

The kitchen range provided by the utility model comprises the kitchen range nozzle mounting structure, when the kitchen range is maintained, only the upper cover of the injection pipe is required to be opened, and the main nozzle is required to be detached, so that the maintenance efficiency is improved, the air inlet pipeline is not required to be detached, the phenomenon of air leakage caused by damage of the air inlet pipeline due to detachment is avoided, and the use safety of the kitchen range is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a nozzle mounting structure of a prior art cooktop;

FIG. 2 is a schematic diagram of the connection of a stove nozzle mounting structure with a stove head and an air inlet pipe provided in an embodiment of the present utility model;

FIG. 3 is an exploded view of a stove nozzle mounting structure and an upper cover of an ejector tube provided by an embodiment of the present utility model;

FIG. 4 is an exploded view of a cooktop nozzle mounting structure and an air intake duct provided by an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of the structure of an upper cover according to an embodiment of the present utility model;

Fig. 7 is a schematic structural view of a closure plate according to an embodiment of the present utility model.

Description of the reference numerals:

100. A burner;

1. An ejector tube; 2. a damper assembly; 3. a nozzle; 4. a gas distribution pipe; 5. a connection joint; 6. an elastic member; 7. a cover plate;

11. An aspiration contraction section; 12. a mixing diffusion section; 13. a step; 14. a connecting piece; 21. an air door plate; 22. an air door adjusting plate; 31. an air inlet injection nozzle; 32. a main nozzle; 71. a threaded hole; 72. a connection part;

111. An upper cover; 112. a bottom cover; 113. connecting the lugs; 311. a first external thread; 312. a second external thread; 313. a limiting table;

1111. A flange step; 1121. a stepped groove; 1131. and a connection hole.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; the two components can be mechanically connected, can be directly connected or can be indirectly connected through an intermediate medium, and can be communicated with each other. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 2 to 4, the present embodiment provides a kitchen range including a burner 100, an air inlet duct, and a kitchen range nozzle mounting structure. One end of the air inlet pipeline is communicated with an air source, and the other end of the air inlet pipeline is connected with the furnace end 100 through a furnace nozzle mounting structure, so that ignition combustion of the furnace end 100 is realized. The gas source can be liquefied gas or natural gas.

The kitchen range nozzle mounting structure comprises an injection pipe 1, a sealing cover plate 7, an air door assembly 2 and a nozzle 3, wherein the air inlet end of the injection pipe 1 is connected with the sealing cover plate 7, the air door assembly 2 is arranged at one end of the sealing cover plate 7 far away from the injection pipe 1, the nozzle 3 sequentially penetrates through the air door assembly 2 and the sealing cover plate 7 and stretches into the injection pipe 1, and gas provided by a gas source enters the nozzle 3 through an air inlet pipeline and is sprayed out of the injection pipe 1 so as to realize ignition combustion of the burner 100.

Specifically, the damper assembly 2 includes a damper plate 21 and a damper plate 22, the cover plate 7 is fixed to an end of the injection pipe 1 remote from the burner 100 by screws, and the air inlet injection nozzle 31 sequentially passes through the damper plate 22 and the damper plate 21 to be fixed to the cover plate 7.

In general, the stove is a double stove head, the air inlet pipeline comprises an air inlet main pipe and two air distribution pipes 4, one end of the air inlet main pipe is communicated with an air source, the other end of the air inlet main pipe is communicated with the two air distribution pipes 4 through a three-way joint, the two air distribution pipes 4 are respectively connected with two nozzles 3, the two injection pipes 1 share one air door component 2, the two nozzles 3 penetrate through the air door component 2 to enter the two injection pipes 1 in a one-to-one correspondence manner, and the nozzles 3 inject air into the injection pipes 1 corresponding to the air inlet main pipe so as to ignite the stove head 100 correspondingly communicated with the air inlet main pipe.

When the kitchen range in the prior art is used for maintaining the nozzle, a spanner is used for separating the gas distribution pipe 4 from the nozzle 3, and then the nozzle 3 is detached from the cover plate 7. Such an operation is likely to damage the gas distribution pipe 4, which results in breakage of the gas distribution pipe 4, but is not likely to be found, and further, the gas leakage phenomenon occurs when the gas distribution pipe is used continuously, which is likely to cause a safety accident.

In order to solve the above problems, the present embodiment further provides a stove nozzle mounting structure, which is applied to the above stove, wherein an opening is provided in the circumferential direction of the air inlet end of the injection pipe 1, the nozzle 3 extends into the opening, and a detachable upper cover 111 is provided on the opening; the nozzle 3 comprises an air inlet injection nozzle 31 and a main nozzle 32, and the air inlet injection nozzle 31 penetrates through the air door assembly 2 and the cover plate 7 to extend into the injection pipe 1 and then is detachably connected with the main nozzle 32.

The air inlet end of the ejector tube 1 is further provided with a perforation which is arranged coaxially with the ejector tube 1 so that the nozzle 3 passes through the perforation into the opening. The opening is provided in the peripheral wall of the ejector tube 1, preferably upwardly, to facilitate the removal and attachment operation with the upper cover 111.

Through setting up detachable upper cover 111 in the one end that draws in ejector tube 1 and air door subassembly 2 to be connected, nozzle 3 sets up to intake and draws in nozzle 31 and main nozzle 32 two parts, and the one end that intake draws in nozzle 31 is connected with the air inlet pipe, and the other end passes air door subassembly 2, closing cap board 7 and stretches into and draw in after pipe 1 and be connected with main nozzle 32 can be dismantled. When the nozzle is maintained, only the upper cover 111 of the injection pipe 1 is required to be opened, the main nozzle 32 is detached from the air inlet injection nozzle 31, the disassembly is convenient, and the maintenance efficiency is improved; and the air inlet pipeline does not need to be disassembled, so that the air inlet pipeline is prevented from being damaged, and the air leakage phenomenon is avoided.

Specifically, the length of the air inlet injection nozzle 31 is longer than that of the main nozzle 32, a gas channel is arranged in the air inlet injection nozzle 31, and gas provided by a gas source enters the gas channel in the air inlet injection nozzle 31 after entering the gas distribution pipe 4 through the air inlet main pipe, and the gas channel plays a role in ventilation and injection. The aperture of the primary nozzle 32 is fixed to exit the gas according to set parameters. The injection nozzle 3 is detachably connected with the main nozzle 32, so that the main nozzle 32 is convenient to replace during maintenance, and the switching of liquefied gas and natural gas can be realized according to requirements by replacing the main nozzles 32 with different apertures.

In one embodiment, the ejector tube 1 includes an air intake contraction section 11 and a mixing diffuser section 12, the air intake contraction section 11 includes a bottom cover 112 and an upper cover 111 that are detachably connected, the upper cover 111 is fastened on the bottom cover 112 to close the opening, and the mixing diffuser section 12 is used for connecting the air intake contraction section 11 and the burner 100. The bore diameter of the end of the suction constriction 11 remote from the mixing diffuser 12 is much larger than the bore diameter of the mixing diffuser 12, so that a cavity accommodating the main nozzle 32 is formed after the fixation with the cover plate 7. By detachably connecting the bottom cover 112 and the upper cover 111, the main nozzle 32 can be exposed by only removing the upper cover 111 when the main nozzle 32 is replaced, and the main nozzle 32 can be removed.

In one embodiment, the bottom cover 112 is integrally provided with the mixing diffuser 12. Providing the bottom cover 112 and the mixing diffuser 12 as a unitary structure reduces the number of connections and is easier to assemble. Of course, in other embodiments, the bottom cover 112 and the mixing diffuser 12 may be provided as a separate structure, which is easier to manufacture.

In an embodiment, the front end of the mixing diffuser 12 is provided with a step 13, and the inner wall of the end of the upper cover 111 connected with the mixing diffuser 12 is attached to the outer wall of the step 13. By providing the step 13, the tightness of the injection pipe 1 is ensured after the upper cover 111 is connected with the bottom cover 112, and the air leakage phenomenon is avoided.

In an embodiment, as shown in fig. 5 and 6, the bottom cover 112 faces the upper cover 111 and is provided with a stepped groove 1121, the upper cover 111 is provided with a flange step 1111 matching the stepped groove 1121, and when the upper cover 111 is matched with the bottom cover 112, the flange step 1111 is matched with the stepped groove 1121, so as to realize the tightness of the connection between the upper cover 111 and the bottom cover 112.

In this embodiment, the stepped slot 1121 and the flange step 1111 are both disposed on a side near the inner cavity of the mixing diffuser 12, which provides better sealing.

Of course, in other embodiments, the stepped slot 1121 and the flange step 1111 may be provided on the outer circumference of the mixing diffuser 12, or the stepped slot 1121 and the flange step 1111 may be provided in the middle of the pipe wall of the mixing diffuser 12.

In an embodiment, the upper cover 111 and the bottom cover 112 are oppositely provided with connection lugs 113, and the two oppositely provided connection lugs 113 are connected through connection bolts. The connecting lugs 113 are provided with connecting holes 1131, and after the connecting lugs 113 oppositely arranged on the upper cover 111 and the bottom cover 112 are butted, the two connecting holes 1131 are aligned, and the connecting bolts sequentially pass through the two connecting holes 1131 to connect the upper cover 111 and the bottom cover 112.

In this embodiment, the two bottom covers 112 of the two injection pipes 1 are provided as an integral structure, the two upper covers 111 are also provided as an integral structure, two connecting lugs 113 are respectively provided at two ends of the two upper covers 111 of the integral structure, and likewise, two connecting lugs 113 are respectively provided at two ends of the two bottom covers 112 of the integral structure, and the two upper covers 111 of the integral structure are connected with the two bottom covers 112 of the integral structure through two connecting bolts, so that when the main nozzles 32 are replaced, the two main nozzles 32 can be replaced at the same time only by disassembling the two connecting bolts.

Optionally, to ensure that the two upper covers 111 and the two lower covers 112 of the integral structure can be accurately aligned, the two mixing diffusers 12 are also connected into an integral structure by the connecting member 14.

In one embodiment, the inlet jet nozzle 31 is threadably connected to the main nozzle 32. When the main nozzle 32 is detached, the main nozzle 32 is only required to be unscrewed from the air inlet injection nozzle 31. Of course, in other embodiments, the air inlet injection nozzle 31 and the main nozzle 32 may be connected by plugging or clamping.

In one embodiment, the end of the intake jet nozzle 31 remote from the main nozzle 32 is removably connected to the intake conduit. Such arrangement facilitates replacement of the air intake duct when air leakage occurs due to damage to the air intake duct.

In one embodiment, the air inlet injection nozzle 31 has a first external thread 311 at one end and a second external thread 312 at the other end, the main nozzle 32 has a first internal thread, the first external thread 311 is connected with the first internal thread in a matching manner, the air inlet pipeline includes a connection joint 5, a second internal thread is provided in the connection joint 5, and the second external thread 312 is connected with the second internal thread in a matching manner. In this embodiment, the air inlet injection nozzle 31 is connected with the air distribution pipe 4 through the connection joint 5, and when the air distribution pipe 4 is broken, the connection joint 5 can be unscrewed from the air inlet injection nozzle 31, so that the air distribution pipe 4 can be replaced.

In one embodiment, as shown in fig. 7, a threaded hole 71 is formed in the cover plate 7, a connecting portion 72 is convexly formed on one side of the cover plate 7, which is close to the injection pipe 1, the threaded hole 71 penetrates through the connecting portion 72, and the air inlet injection nozzle 31 is screwed with the threaded hole 71 and then extends out of the connecting portion 72 to be connected with the main nozzle 32. The first external thread 311 of the air intake injection nozzle 31 is screwed with the threaded hole 71 and then extends out of the connecting portion 72, and the first internal thread of the main nozzle 32 is screwed with the first external thread 311. By providing the connection portion 72, the stability of the connection of the air intake injection nozzle 31 is increased, and the installation is more stable.

Specifically, the cover plate 7 is further provided with a hole site cooperatively connected with the damper assembly 2, and the specific structure of the damper assembly 2 connected with the cover plate 7 is already prior art, which is not described herein again.

In an embodiment, the kitchen range nozzle mounting structure further comprises an elastic piece 6, the air inlet injection nozzle 31 is provided with a limiting table 313, the limiting table 313 is located between the first external thread 311 and the second external thread 312, the elastic piece 6 is sleeved on the air inlet injection nozzle 31, one end of the elastic piece 6 is abutted with the limiting table 313, and the other end of the elastic piece 6 is abutted with the cover plate 7. The elastic member 6 is a spring. By providing the elastic member 6, after the air inlet injection nozzle 31 is fixed on the cover plate 7, the damper adjusting plate 22 and the damper plate 21 are abutted on the cover plate 7 under the elastic restoring force of the elastic member 6.

The disassembly and assembly process of the kitchen range nozzle mounting structure provided by the embodiment is as follows:

When in installation, the cover plate 7 is fixed on the bottom cover 112 through screws, the air inlet injection nozzle 31 sequentially passes through the elastic piece 6, the air door adjusting plate 22 and the threaded holes 71 on the cover plate 7 to be in threaded connection, and then the main nozzle 32 is in threaded connection with the air inlet injection nozzle 31. After aligning the upper cover 111 with the lower cover 112, the upper cover 111 and the lower cover 112 are coupled by two coupling bolts to close the opening. Finally, the connecting joint 5 of the gas distribution pipe 4 is in threaded connection with the gas inlet injection nozzle 31.

When the main nozzle 32 is removed and replaced, only two connecting bolts connecting the upper cover 111 and the bottom cover 112 are required to be removed, and then the main nozzle 32 is unscrewed from the air inlet injection nozzle 31.

The kitchen range provided by the embodiment is applied to the kitchen range nozzle mounting structure, when maintaining the nozzle, only the upper cover 111 of the injection pipe 1 is required to be opened, the main nozzle 32 is detached, the maintenance efficiency is improved, the air inlet pipeline is not required to be detached, the phenomenon that the air inlet pipeline is damaged to cause air leakage due to detachment is avoided, and the use safety of the kitchen range is improved.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The kitchen range nozzle mounting structure comprises an injection pipe (1), a cover plate (7) and a nozzle (3), wherein the air inlet end of the injection pipe (1) is connected with the cover plate (7), and the nozzle (3) penetrates through the cover plate (7) to extend into the injection pipe (1), and the kitchen range nozzle mounting structure is characterized in that an opening is formed in the circumference of the air inlet end of the injection pipe (1), the nozzle (3) extends into the opening, and a detachable upper cover (111) is arranged on the opening; the nozzle (3) comprises an air inlet injection nozzle (31) and a main nozzle (32), and the air inlet injection nozzle (31) penetrates through the cover plate (7) and stretches into the injection pipe (1) to be detachably connected with the main nozzle (32).

2. The kitchen range nozzle mounting structure according to claim 1, wherein the injection pipe (1) comprises an air suction contraction section (11) and a mixing diffusion section (12), the air suction contraction section (11) comprises a bottom cover (112) and an upper cover (111) which are detachably connected, the upper cover (111) is buckled on the bottom cover (112) so as to close the opening, and the mixing diffusion section (12) is used for connecting the air suction contraction section (11) and the burner (100).

3. The cooktop nozzle mounting structure of claim 2, wherein the bottom cover (112) and the mixing diffuser (12) are integrally provided.

4. The kitchen range nozzle mounting structure according to claim 3, wherein a step (13) is provided at the front end of the mixing diffuser section (12), and an inner wall of one end of the upper cover (111) connected with the mixing diffuser section (12) is attached to an outer wall of the step (13).

5. The cooking utensils nozzle mounting structure according to claim 4, characterized in that the bottom cover (112) is provided with a stepped groove (1121) facing the upper cover (111), and the upper cover (111) is provided with a flange step (1111) cooperating with the stepped groove (1121).

6. The kitchen range nozzle mounting structure according to claim 2, wherein a connecting lug (113) is oppositely arranged on the upper cover (111) and the bottom cover (112), and the two oppositely arranged connecting lugs (113) are connected through a connecting bolt.

7. The cooking top mounting structure according to claim 1, characterized in that the air intake injection nozzle (31) is screwed with the main nozzle (32).

8. The kitchen range nozzle mounting structure according to claim 7, characterized in that one end of the air inlet injection nozzle (31) far away from the main nozzle (32) is connected with an air inlet pipeline, one end of the air inlet injection nozzle (31) is provided with a first external thread (311), the other end is provided with a second external thread (312), the main nozzle (32) is provided with a first internal thread, the first external thread (311) is in fit connection with the first internal thread, the air inlet pipeline comprises a connecting joint (5), a second internal thread is arranged in the connecting joint (5), and the second external thread (312) is in fit connection with the second internal thread;

the kitchen range nozzle mounting structure further comprises an elastic piece (6), a limiting table (313) is arranged on the air inlet injection nozzle (31), the limiting table (313) is located between the first external thread (311) and the second external thread (312), the elastic piece (6) is sleeved on the air inlet injection nozzle (31), one end of the elastic piece (6) is abutted to the limiting table (313), and the other end of the elastic piece is abutted to the sealing cover plate (7).

9. The kitchen range nozzle mounting structure according to any one of claims 1-8, characterized in that a threaded hole (71) is formed in the cover plate (7), a connecting portion (72) is convexly formed on one side, close to the injection pipe (1), of the cover plate (7), the threaded hole (71) penetrates through the connecting portion (72), and the air inlet injection nozzle (31) is connected with the threaded hole (71) in a threaded mode and then extends out of the connecting portion (72) to be connected with the main nozzle (32).

10. A cooktop, characterized by comprising a cooktop nozzle mounting structure according to any of claims 1-9.