Direct burning head of lighter

Abstract

The utility model discloses a direct burning head of a lighter, which comprises a sleeve and a porcelain cup, the upper end and the lower end of the sleeve are respectively provided with a gas outlet nozzle and a gas inlet component, the gas outlet nozzle is positioned in the porcelain cup, the sleeve comprises a sleeve main body, an upper connecting sleeve seat and a lower connecting sleeve seat which are integrally formed by die casting, and the sleeve main body is provided with a gas inlet hole; the upper connecting sleeve seat is arranged above the sleeve main body and is used for mounting the air outlet nozzle in a matched manner; the casing pipe is integrally formed in a die-casting mode, die-casting forming of the casing pipe can be completed only through one die, machining is convenient, the production cost is reduced, manual assembling is not needed in the follow-up process, in addition, due to the fact that the casing pipe is integrally formed in an injection molding mode, the production efficiency is improved, and the production cost is reduced. The assembly of other accessories of the combustion head is not affected, meanwhile, the structural stability is higher, assembly flaws easily caused by manual assembly can be avoided, potential safety hazards of the lighter are reduced, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lighter combustion heads, in particular to a lighter direct-injection combustion head. Background Art

[0002] As the most common lighter, the direct-flow lighter works on the principle that the gas passes through the micropores in the direct-flow nozzle. After being fully mixed with the air in the mixing chamber, most of the gas is ejected from the nozzle duct, and a small part of the gas enters the gas diversion channel to produce a stable small flame, thereby igniting the gas ejected from the nozzle duct, producing two or more strong, rod-shaped, high-heat direct-flow flames. Among them, the accessory that assists in ejecting the flame is the combustion head of the lighter.

[0003] In a direct burner, it generally includes a sleeve, a porcelain cup and an air outlet nozzle, wherein the air outlet nozzle is fixed to the upper end of the sleeve and located inside the porcelain cup, and the porcelain cup is fixed to the sleeve by a clamp. At present, the production of the sleeve is generally die-casted by a die-casting machine. Since the existing sleeve is divided into two parts, namely the main body of the sleeve and the upper sleeve seat (as shown in the figure of the specification), the sleeve is generally formed by a die-casting machine. Figure 5 The upper sleeve is used to install the air outlet nozzle, and both need to be die-cast separately. Therefore, two sets of molds for the die-casting machine need to be set up and die-cast separately, which is costly and difficult to process. In addition, after processing, the upper sleeve needs to be manually inserted into the main part of the sleeve via a rod, which is also labor-intensive and time-consuming, and needs to be improved. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a lighter directly into the combustion head.

[0005] The technical solution adopted by the utility model is: a lighter direct-injection burner head, including a sleeve and a porcelain cup connected to each other, an air outlet nozzle and an air inlet assembly are respectively installed at the upper and lower ends of the sleeve, the air outlet nozzle is located inside the porcelain cup, and the sleeve includes an integrally die-cast sleeve body, an upper sleeve seat and a lower sleeve seat, wherein,

[0006] The sleeve body is provided with an air inlet hole;

[0007] The upper connecting sleeve is arranged above the sleeve body and is used to cooperate with the installation of the air outlet nozzle;

[0008] The lower connecting sleeve is arranged below the sleeve body and is used for cooperating with and installing the air intake assembly.

[0009] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution. They are merely further supplements or optimizations. Under the premise that there are no technical or logical contradictions, each optional method can be combined separately for the above-mentioned overall solution, or multiple optional methods can be combined.

[0010] Preferably, the interiors of the sleeve body, the upper connecting sleeve and the lower connecting sleeve are all interconnected.

[0011] Preferably, the air inlet is arranged at a lower position of the sleeve body.

[0012] Preferably, the upper connecting sleeve and the lower connecting sleeve are both tubular, wherein the diameter of the upper connecting sleeve is larger than the diameter of the sleeve body.

[0013] Preferably, an extension boss extending outward relative to the sleeve body is formed on the lower end edge of the upper sleeve seat, an annular groove is provided at the upper position of the sleeve body, an inward extension portion is provided at the lower end of the porcelain cup, the inner end of the inward extension portion extends into the annular groove, and the upper end of the inward extension portion abuts against the extension boss.

[0014] Preferably, a conductive cup is sleeved on the outside of the porcelain cup, and the upper and lower ends of the conductive cup extend to the upper and lower ends of the porcelain cup respectively and are clamped on the porcelain cup.

[0015] Preferably, the lower end edge of the upper sleeve is formed with an extension boss extending outward relative to the sleeve body, the lower end of the porcelain cup abuts against the extension boss, the upper end of the upper sleeve is provided with a flange, and the inner side of the upper position of the porcelain cup is provided with a fixed step, the flange is flipped outward and clamped on the fixed step.

[0016] More preferably, the lower end edge of the upper sleeve is formed with an extension boss extending outward relative to the sleeve body, the lower end of the porcelain cup extends to the lower end of the extension boss, and the porcelain cup has a clamping position extending inward and clamped at the upper end of the extension boss.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The sleeve is set as an integral die-casting, and only one set of molds is needed to complete the die-casting of the sleeve, which is convenient to process, reduces production costs, and does not require subsequent manual assembly. In addition, the sleeve is made by integral injection molding, and while it will not affect the assembly of other accessories of the combustion head, it has stronger structural stability and can avoid assembly defects that are easily caused by manual assembly, thereby reducing the safety hazards of the lighter and being highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 A longitudinal cross-sectional view of a sleeve in one embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the structure of the sleeve from an upper side perspective in one embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the structure of the sleeve from a bottom perspective in one embodiment of the present application;

[0023] Figure 4 A longitudinal cross-sectional view of a direct burner head according to an embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the split assembly of the sleeve in the prior art;

[0025] Figure 6 This is a schematic diagram of an assembly structure in which a flange is provided between the porcelain cup and the sleeve in one embodiment of the present application;

[0026] Figure 7 This is a structural diagram of an embodiment of the present application in which a porcelain cup and a sleeve are assembled by means of socket connection.

[0027] Marked in the accompanying drawings are: 1-sleeve, 11-sleeve body, 12-lower socket, 13-upper socket, 131-flange, 14-air inlet, 15-extended boss, 2-porcelain cup, 21-fixed step, 3-conductive cup, 4-air inlet assembly, 5-air outlet nozzle.

[0028] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions of "first", "second", etc. in this utility model are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0032] Specific implementation plan: see Figure 1-Figure 7 The utility model is a direct-injection burner head of a lighter, comprising a sleeve 1 and a porcelain cup 2 connected to each other, with an air outlet nozzle 5 and an air inlet assembly 4 respectively installed at the upper and lower ends of the sleeve 1. The air outlet nozzle 5 is located inside the porcelain cup 2. The sleeve 1 comprises an integrally die-cast sleeve 1 body, an upper sleeve seat and a lower sleeve seat 12, wherein,

[0033] An air inlet hole 14 is provided on the main body of the sleeve 1;

[0034] The upper connecting sleeve 13 is arranged above the main body of the sleeve 1 and is used to cooperate with the installation of the air outlet nozzle 5;

[0035] The lower connecting sleeve 12 is arranged below the main body of the sleeve 1 and is used for cooperating with and installing the air intake assembly 4 .

[0036] As a preferred implementation of this embodiment, please refer to Figure 1 It can be seen that the interiors of the sleeve 1 body, the upper connecting sleeve 13 and the lower connecting sleeve 12 are all interconnected.

[0037] Here, the die-casting of the sleeve 1 can be completed by only setting up a set of molds, which reduces both mold-making and production costs. In addition, because the sleeve 1 body, the upper connecting socket 13, and the lower connecting socket 12 are integrally formed, the sleeve 1 can be directly used to assemble the burner head after production, eliminating the need for additional manual processing and assembly, effectively reducing labor costs. Furthermore, the sleeve 1 formed by die-casting has a stronger structural stability, is less prone to deformation, and does not suffer from product defects that are easily caused during manual assembly, resulting in a low defective rate.

[0038] See also Figure 2 and Figure 3It can be seen that in this embodiment, the air inlet 14 is arranged at a lower position of the main body of the sleeve 1. Here, for the entire sleeve 1, the air inlet 14 is generally arranged at a middle position of the sleeve 1.

[0039] In this embodiment, the air intake assembly 4 includes a flow restrictor, a tail cap, and a filter sheet for windproofing. This is conventional technology and will not be described in detail here. The gas inside the lighter enters the sleeve 1 through the air intake assembly 4 and mixes with the air entering the sleeve 1 through the air intake hole 14.

[0040] Then, in this embodiment, the upper connecting sleeve 13 and the lower connecting sleeve 12 are both tubular, wherein the diameter of the upper connecting sleeve 13 is larger than the diameter of the sleeve 1 body.

[0041] Next, see Figure 4 It can be seen that in this embodiment, an extension boss 15 extending outward relative to the main body of the sleeve 1 is formed on the lower end edge of the upper sleeve seat 13, and an annular groove is provided at the upper position of the main body of the sleeve 1. An inward extension portion is provided at the lower end of the porcelain cup 2, and the inner end of the inward extension portion extends into the annular groove, and the upper end of the inward extension portion abuts against the extension boss 15.

[0042] In this embodiment, the annular groove provided on the main body of the sleeve 1 can cooperate with the extended boss 15 to fix the position of the porcelain cup 2. Of course, other methods, such as a fixing ring, can also be selected to complete the fixation of the porcelain cup 2.

[0043] Then, see Figure 4 It can be seen that in this embodiment, a conductive cup 3 is provided on the outside of the porcelain cup 2. The upper and lower ends of the conductive cup 3 extend to the upper and lower ends of the porcelain cup 2 respectively, and are connected to the porcelain cup 2 by bending inward.

[0044] There are many ways to install the porcelain cup 2 and the upper sleeve 13. Two of them are described below:

[0045] First: Please refer to Figure 6 The lower end edge of the upper sleeve 13 is formed with an extension boss 15 extending outward relative to the main body of the sleeve 1, and the lower end of the porcelain cup 2 abuts on the extension boss 15. The upper end of the upper sleeve 13 is provided with a flange 131, and the inner side of the upper position of the porcelain cup 2 is provided with a fixed step 21. The flange 131 is flipped outward and clamped on the fixed step 21.

[0046] Here, by setting a flange 131 at the upper end of the upper sleeve 13, after the porcelain cup 2 is put on the upper sleeve 13, the flange 131 at the upper end of the upper sleeve 13 is turned outward by stamping and fixed on the fixed step 21 of the porcelain cup 2, a more stable connection between the porcelain cup 2 and the upper sleeve 13 can be achieved.

[0047] Second: Please refer to Figure 7 The lower end edge of the upper sleeve 13 is formed with an extension boss 15 extending outward relative to the main body of the sleeve 1, the lower end of the porcelain cup 2 extends to the lower end of the extension boss 15, and the porcelain cup 2 has a clamping position extending inward and clamped at the upper end of the extension boss 15.

[0048] Here, the porcelain cup 2 and the upper sleeve 13 are assembled by direct socketing, and the porcelain cup 2 and the upper sleeve 13 are fixed by the snap connection between the snap connection position and the extended boss 15 .

[0049] The above description of the direct-charge combustion head of a lighter of the present invention is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the description and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lighter direct-injection burner head, comprising a sleeve and a porcelain cup connected to each other, wherein an air outlet nozzle and an air inlet assembly are respectively installed at the upper and lower ends of the sleeve, and the air outlet nozzle is located inside the porcelain cup, characterized in that: The sleeve comprises an integrally die-cast sleeve body, an upper connecting sleeve seat and a lower connecting sleeve seat, wherein: The sleeve body is provided with an air inlet hole; The upper connecting sleeve is arranged above the sleeve body and is used to cooperate with the installation of the air outlet nozzle; The lower connecting sleeve is arranged below the sleeve body and is used for cooperating with and installing the air intake assembly.

2. A lighter direct-into-burner head according to claim 1, characterized in that: The interiors of the sleeve body, the upper connecting sleeve and the lower connecting sleeve are all communicated with each other.

3. A lighter direct-into-burner head according to claim 2, characterized in that: The air inlet hole is arranged at a lower position of the sleeve body.

4. A lighter direct-into-burner head according to claim 3, characterized in that: The upper connecting sleeve and the lower connecting sleeve are both tubular, wherein the diameter of the upper connecting sleeve is larger than the diameter of the sleeve body.

5. A lighter direct-into-burner head according to claim 4, characterized in that: An extension boss extending outward relative to the sleeve body is formed on the lower end edge of the upper sleeve seat, and an annular groove is provided at the upper position of the sleeve body. An inward extension portion is provided at the lower end of the porcelain cup, and the inner end of the inward extension portion extends into the annular groove, and the upper end of the inward extension portion abuts against the extension boss.

6. A lighter direct-into-burner head according to any one of claims 1 to 5, characterized in that: A conductive cup is sleeved on the outside of the porcelain cup. The upper and lower ends of the conductive cup extend to the upper and lower ends of the porcelain cup respectively and are clamped on the porcelain cup.

7. A lighter direct-into-burner head according to claim 4, characterized in that: The lower end edge of the upper sleeve is formed with an extension boss extending outward relative to the sleeve body, the lower end of the porcelain cup abuts against the extension boss, the upper end of the upper sleeve is provided with a flange, and the inner side of the upper position of the porcelain cup is provided with a fixed step, the flange is flipped outward and clamped on the fixed step.

8. A lighter direct-into-burner head according to claim 4, characterized in that: An extension boss extending outward relative to the sleeve body is formed on the lower edge of the upper sleeve seat, and the lower end of the porcelain cup extends to the lower end of the extension boss, and the porcelain cup has a clamping position extending inward and clamped at the upper end of the extension boss.

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