CN219550522U

CN219550522U - Nozzle of gas kitchen range

Info

Publication number: CN219550522U
Application number: CN202223135515.1U
Authority: CN
Inventors: 戎胡斌; 王黎喆; 杨均
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-08-18
Anticipated expiration: 2032-11-24

Abstract

The utility model relates to a gas cooker nozzle, which comprises a body, wherein the body comprises a gas outflow part arranged at the head part of the body, and the gas outflow part is used for outflow of gas sprayed into the body gas, and is characterized in that: the gas outflow portion is including being located the central first outflow hole that supplies the gas to flow out and setting up at the peripheral at least two second outflow holes of first outflow hole, and the cross-sectional area of each second outflow hole is greater than the cross-sectional area of first outflow hole, compares with prior art, and the advantage of this utility model lies in: the outflow hole is divided into two parts, the first part is a first outflow hole positioned in the center and at least a second outflow hole positioned at the periphery of the first outflow hole, and in the case that the sum of the total area of each second outflow hole and the first outflow hole is the same as that of the outflow hole of the existing nozzle, the aperture of each second outflow hole is larger than that of the first outflow hole, and the contact area with primary air can be increased by the outward movement of each second outflow hole, so that the heat load of the nozzle is improved.

Description

Nozzle of gas kitchen range

Technical Field

The utility model relates to the technical field of gas cookers, in particular to a nozzle structure of a gas cooker.

Background

Most of the existing stove burners on the market are atmospheric burners, and a part of primary air needs to be premixed in advance, so that a damper opening size adjusting device is needed to adjust the required amount of premixed primary air. There are two most common approaches: one is to change the effective flow area of the primary air suction inlet by rotating the air regulating plate and moving the air regulating plate back and forth, thereby regulating the suction amount of the primary air; for example, an air door adjusting piece is arranged at the upper end of the nozzle body of a Chinese patent application No. ZL201020571414.7 (issued publication No. CN 201885232U), the air door adjusting piece is connected with the nozzle body by screw threads, and the air quantity is adjusted by the up-and-down movement of the air door adjusting piece, so that the mixing of the air and the gas is in an optimal state, and when the air door is propped against an injection pipe, the air door in the form is continuously rotated towards the direction of the injection pipe, thus the air door is blocked and is not easy to rotate; the second is that the air regulating plate is fixed on the injection pipe and can rotate, and the primary air suction amount is changed by changing the superposition degree of the opening of the air regulating plate and the primary air suction inlet; the air regulating plate in the form is often poor in regulating experience due to the fact that the contact surface of the injection pipe and the air regulating plate is rough, the spring is stressed and the like. For this reason, further improvements to the gas nozzle are required for adjusting the primary air intake.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a gas stove nozzle capable of increasing the contact area between the nozzle and primary air.

The second technical problem to be solved by the present utility model is to provide a gas cooker nozzle capable of conveniently adjusting the primary air intake.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the gas stove nozzle comprises a body, wherein the body comprises a gas outflow part arranged at the head part of the body, and the gas outflow part is used for spraying gas of the body gas to flow out, and is characterized in that: the gas outflow part comprises a first outflow hole which is positioned in the center and is used for the gas to flow out, and at least two second outflow holes which are arranged on the periphery of the first outflow hole, wherein the cross section area of each second outflow hole is larger than that of the first outflow hole.

In order to increase the contact area between each second outflow hole and the primary air, preferably, the periphery of each second outflow hole includes a first arc section and a second arc section with the first outflow hole as a center, the second arc section is further away from the first outflow hole than the first arc section, and the arc length of the second arc section is greater than that of the first arc section. Based on the prior nozzle, the prior nozzle generally has only one outflow hole which is positioned at the center and is used for the fuel gas to flow out, the contact area between the outflow hole and the primary air is small, and the arc length of the second arc section of each second outflow hole is larger than that of the first arc section, so the contact area between the second arc section and the primary air can be increased.

Since the sum of the total areas of the second outflow holes and the first outflow holes of the present utility model is the same as that of the outflow holes of the existing nozzle, in this case, the ratio of the arc length of the second arc section to the arc length of the first arc section of each second outflow hole is preferably 1.5: 1-2: 1.

in order to change the gas outflow portion to meet the requirements of different gas sources and primary air according to the combustion working conditions, the size of the outflow hole of the gas outflow portion can be changed, and meanwhile, the contact area of the primary air and the gas is convenient to adjust, so that the suction amount of the primary air is also changed, from the viewpoint of convenient adjustment, preferably, the gas outflow portion comprises two first gas outflow portions which are connected and positioned at the upstream and second gas outflow portions which are positioned at the downstream along the gas flow direction, and the first gas outflow portions and/or the second gas outflow portions can rotate along the circumferential direction relative to the body, so that the local sectional area of each second outflow hole connection corresponding to the gas outflow portion is at least changed.

In order to facilitate the rotation of the first gas outflow portion and the second gas outflow portion, preferably, a sliding block is provided on the outer peripheral walls of the first gas outflow portion and the second gas outflow portion, and correspondingly, a sliding groove for the sliding block to rotate is provided on the inner peripheral wall of the body. During adjustment, the sliding blocks of the first gas outflow part and the second gas outflow part slide along the sliding grooves so as to realize circumferential rotation of the first gas outflow part and the second gas outflow part relative to the body, and further realize the change of the local sectional area of the joint between the second outflow hole of the first gas outflow part and the second outflow hole of the second gas outflow part, thereby achieving the purpose of changing the thermal load of the nozzle and finally being capable of conveniently adjusting the suction quantity of primary air.

In order to achieve the engagement between the first gas outflow portion and the second gas outflow portion to ensure the sealing property, it is preferable that an engagement shaft protruding from the first engagement surface is provided on a first engagement surface of the first gas outflow portion corresponding to the second gas outflow portion, and an insertion hole into which the engagement shaft is inserted is provided on a second engagement surface of the second gas outflow portion corresponding to the first gas outflow portion. Of course, the aperture of the insertion hole also needs to give a sliding path in which the engagement shaft can slide.

Further, the shielding part can only shield the second outflow hole along with the rotation of the second gas outflow part, and the second gas outflow part is provided with an insertion hole for inserting a tool. The tool is clamped into the insertion hole of the second gas outflow part, the second gas outflow part is rotated, and the relative positions of the second gas outflow part and the first gas outflow part can be adjusted, so that the local sectional area of the joint between the second gas outflow part and each second outflow hole of the first gas outflow part is changed, and finally the effect of changing the thermal load of the nozzle is achieved.

Compared with the prior art, the utility model has the advantages that: the outflow hole is divided into two parts, the first part is a first outflow hole positioned in the center and at least a second outflow hole positioned at the periphery of the first outflow hole, and in the case that the sum of the total area of each second outflow hole and the first outflow hole is the same as that of the outflow hole of the existing nozzle, the aperture of each second outflow hole is larger than that of the first outflow hole, and the contact area with primary air can be increased by the outward movement of each second outflow hole, so that the heat load of the nozzle is improved.

Drawings

FIG. 1 is a schematic view of a gas cooker nozzle in an embodiment of the utility model;

FIG. 2 is a cross-sectional view taken at an angle to FIG. 1;

FIG. 3 is another angular cross-sectional view of FIG. 1;

FIG. 4 is a schematic view of a structure of a second gas outflow portion with an angle according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a second gas outflow portion according to another embodiment of the present utility model;

FIG. 6 is a schematic view of a first gas outflow portion with an angle according to an embodiment of the present utility model;

fig. 7 is a schematic view of a structure of the first gas outflow portion at another angle in the embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 7, is a preferred embodiment of the present utility model. The gas stove nozzle of the embodiment comprises a body 1, wherein the body 1 comprises a gas outflow part 2 arranged at the head part of the body 1, the gas outflow part 2 is used for discharging gas sprayed into the body 1, the gas outflow part 2 comprises a first outflow hole 21 positioned at the center and used for discharging gas, and at least two second outflow holes 22 arranged at the periphery of the first outflow hole 21, and the cross section area of each second outflow hole 22 is larger than that of the first outflow hole 21.

Since the heat load of the burner is proportional to the area of the nozzle hole, the area of the air outlet hole is S=pi R since the conventional nozzle adopts a conventional circular hole nozzle with the hole radius of R ² The perimeter of the contact surface of the fuel gas and the air is L=2pi R, and by adopting the gas cooker nozzle, the round hole is changed into a first outflow hole 21+ which is positioned in the center and is a round hole, and a second outflow hole 22 which is arranged on the periphery of the first outflow hole 21 and is similar to a circular ring is arranged, under the condition that the air outlet area S is unchanged, the perimeter of the contact surface of the fuel gas and the primary air is greatly increased due to the outward movement of each second outflow hole 22, so that the contact area with the primary air is increased, and the injection capacity of the primary air is integrally increased.

Specifically, in order to increase the contact area between each second outflow hole 22 and the primary air, the periphery of each second outflow hole 22 includes a first arc segment 211 and a second arc segment 212 centered on the first outflow hole 21, the second arc segment 212 is farther from the first outflow hole 21 than the first arc segment 211, and the arc length of the second arc segment 212 is greater than the arc length of the first arc segment 211, and the ratio of the arc length of the second arc segment 212 to the arc length of the first arc segment 211 of each second outflow hole 22 is 1.5:1, thereby increasing the contact area with the primary air.

In addition, in order to change the gas outflow portion 2 to meet the requirements of different gas sources and primary air according to the combustion conditions, the size of the outflow holes of the gas outflow portion 2 may be changed, the gas outflow portion 2 of this embodiment further includes two first gas outflow portions 2' and second gas outflow portions 2″ that are engaged and located upstream and located downstream along the gas flow direction, the first gas outflow portions 2' and/or the second gas outflow portions 2″ may rotate circumferentially relative to the body 1, and further at least change the local cross-sectional areas of the engagement of the respective second outflow holes 22 corresponding to themselves, where the first gas outflow portions 2' and the second gas outflow portions 2″ may all independently rotate circumferentially relative to the body 1, and in order to facilitate the rotation of the first gas outflow portions 2' and the second gas outflow portions 2″, the outer peripheral walls of the first gas outflow portions 2' and the second gas outflow portions 2″ are provided with sliding blocks 24, and correspondingly, the inner peripheral walls of the body 1 are provided with sliding grooves 11 for the sliding blocks 24 to rotate. During adjustment, the sliding blocks 24 of the first gas outflow part 2 'and the second gas outflow part 2 "slide along the sliding groove 11, so that the first gas outflow part 2' and the second gas outflow part 2" rotate circumferentially relative to the body 1, and further, the local sectional area of the joint between the second outflow hole 22 of the first gas outflow part 2 'and the second outflow hole 22 of the second gas outflow part 2 "is changed, so that the purpose of changing the thermal load of the nozzle is achieved, and in order to achieve the joint between the first gas outflow part 2' and the second gas outflow part 2" to ensure the tightness, preferably, a joint shaft 25 protruding from the first joint surface 260 is arranged on the first joint surface 260 of the first gas outflow part 2 'corresponding to the second gas outflow part 2 ", and an embedded hole 26 into which the joint shaft 25 can be embedded is arranged on the second joint surface 250 of the second gas outflow part 2" corresponding to the first gas outflow part 2'. Of course, the aperture of the insertion hole 26 also needs to give a sliding path in which the engagement shaft 25 can slide.

Of course, one of the gas outflow portions 2 can also rotate circumferentially relative to the main body 1, and in this embodiment, the second gas outflow portion 2″ is provided with an insertion hole 27 for inserting a tool, for example, by rotating the second gas outflow portion 2″ relative to the first gas outflow portion 2'. The tool is clamped into the insertion hole 27 of the second gas outflow part 2 ", the relative position of the second gas outflow part 2" and the first gas outflow part 2 'can be adjusted by rotating the second gas outflow part 2 ", so that the shielding part 23 can only shield the second outflow hole 22 along with the rotation of the second gas outflow part 2", thereby changing the local sectional area of the joint between the second gas outflow part 2 "and each second outflow hole 22 of the first gas outflow part 2', and finally achieving the effect of changing the nozzle thermal load.

Claims

1. The utility model provides a gas cooking utensils nozzle, is including body (1), body (1) is including setting up gas outflow portion (2) of the head of body (1), and this gas outflow portion (2) are supplied to spout into the gas outflow of body (1) gas, its characterized in that: the gas outflow part (2) comprises a first outflow hole (21) which is positioned in the center and is used for flowing out gas, and at least two second outflow holes (22) which are arranged on the periphery of the first outflow hole (21), wherein the cross section area of each second outflow hole (22) is larger than that of the first outflow hole (21).

2. The gas cooktop nozzle of claim 1, wherein: the periphery of each second outflow hole (22) comprises a first arc section (211) and a second arc section (212) which take the first outflow hole (21) as a center, the second arc section (212) is far away from the first outflow hole (21) compared with the first arc section (211), and the arc length of the second arc section (212) is larger than that of the first arc section (211).

3. The gas cooktop nozzle of claim 2, wherein: the ratio of the arc length of the second arc section (212) to the arc length of the first arc section (211) is 1.5: 1-2: 1.

4. a gas cooker nozzle as claimed in any one of claims 1 to 3, characterized in that: the gas outflow part (2) comprises two first gas outflow parts (2 ') which are connected and positioned at the upstream and second gas outflow parts (2') positioned at the downstream along the gas flow direction, and the first gas outflow parts (2 ') and/or the second gas outflow parts (2') can rotate along the circumferential direction relative to the body (1), so that the local sectional area of the connection of each corresponding second outflow hole (22) is at least changed.

5. The gas cooker nozzle of claim 4, wherein: a shielding part (23) is arranged between each second outflow hole (22) corresponding to the first gas outflow part (2 ') and the second gas outflow part (2'), and the shielding part (23) can shield the second outflow holes (22) along with the rotation of the first gas outflow part (2 ') and/or the second gas outflow part (2'), so that the sectional area of each second outflow hole (22) at the shielding part (23) is changed.

6. The gas cooker nozzle of claim 5, wherein: the outer peripheral walls of the first gas outflow part (2 ') and the second gas outflow part (2') are provided with sliding blocks (24), and correspondingly, the inner peripheral wall of the body (1) is provided with sliding grooves (11) for the sliding blocks (24) to rotate.

7. The gas cooktop nozzle of claim 6, wherein: the second gas outflow part (2 ') is provided with a joint shaft (25) protruding out of the second joint surface (250) corresponding to the second gas outflow part (2'), and the first gas outflow part (2 ') is provided with an embedding hole (26) for embedding the joint shaft (25) corresponding to the first joint surface (260) of the first gas outflow part (2').

8. The gas cooker nozzle according to any one of claims 5 to 7, characterized in that: the shielding part (23) can only shield the second outflow hole (22) along with the rotation of the second gas outflow part (2 '), and an insertion hole (27) for inserting a tool is arranged on the second gas outflow part (2').