Nozzle

Abstract

The invention provides a nozzle which comprises a first pipe body, a second pipe body, a third pipe body, a spray head assembly and an end cover. An air inlet and a material return opening are formed in the side wall of the first pipe body; a feeding hole and a temperature sensor mounting hole are formed in the side wall of the second pipe body; the nozzle assembly comprises a nozzle outer sleeve and a nozzle inner core, a nozzle cavity is formed in the nozzle outer sleeve, the nozzle inner core is located in the nozzle cavity, a nozzle hole penetrating through the two ends is formed in the center of the nozzle outer sleeve, a plurality of air grooves from the edge to the middle are formed in the end face, away from the third pipe body, of the nozzle outer sleeve, and a nozzle hole penetrating through the two ends is formed in the middle of the nozzle inner core. An end cover hole which penetrates through the two ends and corresponds to the spray hole is formed in the center of the end cover. When the nozzle is blocked, only the end cover needs to be screwed off, then the spray head assembly needs to be screwed off, the spray head assembly is cleaned, time and labor are saved, efficiency is high, strength is low, and maintenance is easy and convenient.

Description

Technical Field

[0001] This invention relates to the field of stoves, and in particular to a nozzle. Background Technology

[0002] Liquid fuel stoves refer to non-stationary cooking stoves that use bottled liquid fuel as energy and directly heat it with fire. The nozzle is the core component of a liquid fuel stove. Because the nozzle orifice is very small, it is easy to get clogged during use. Once clogged, the entire nozzle needs to be disassembled for cleaning, which is time-consuming, laborious, inefficient, and strenuous. Summary of the Invention

[0003] This invention proposes a nozzle that solves the problem of existing nozzles being difficult to disassemble and clean when clogged.

[0004] The technical solution of this invention is implemented as follows:

[0005] A nozzle includes a first tube body, a second tube body, a third tube body, a nozzle assembly, and an end cap. The first tube body has an air inlet and a return outlet on its side wall. The second tube body is threaded to one end of the first tube body, and has an inlet and a temperature sensor mounting port on its side wall. The third tube body is threaded to the end of the second tube body near the first tube body, and is located inside the first tube body. The nozzle assembly includes a nozzle outer sleeve and a nozzle inner core. The nozzle outer sleeve is threaded to the end of the third tube body away from the second tube body. A nozzle cavity is formed inside the nozzle outer sleeve, and the nozzle inner core is located inside the nozzle cavity. A nozzle hole penetrating both ends is formed at the center of the nozzle outer sleeve. Several air grooves extending from the edge to the center are also formed on the end face of the nozzle outer sleeve away from the third tube body. The head end of the nozzle inner core is fitted into the nozzle hole, and a nozzle hole penetrating both ends is formed in the middle of the nozzle inner core. The end cap is threaded to the end of the first tube body away from the second tube body, and has an end cap hole penetrating both ends and corresponding to the nozzle hole at its center.

[0006] Preferably, a heating device is installed in the end of the second tube that is away from the first tube.

[0007] Preferably, the heating device includes an electric heating rod, which is fixed to a mounting head. The outer side of the mounting head is provided with an external thread I, and the mounting head is threadedly connected to the end of the second tube away from the first tube.

[0008] Preferably, a temperature sensor is installed inside the temperature sensor mounting port.

[0009] Preferably, the number of air ducts is six, and each air duct is tangent to the nozzle hole.

[0010] Preferably, the depth of the air duct gradually decreases from the edge to the center.

[0011] Preferably, the nozzle inner core includes a cylindrical section, a tapered section is fixedly connected to one end of the cylindrical section near the end cap, and an external thread II is provided on the circumferential side of the cylindrical section. The cylindrical section is threadedly connected to the third tube body.

[0012] Preferably, the inner core of the nozzle is provided with two symmetrical wrench faces on its side for easy wrench insertion.

[0013] Preferably, the outer side of the first tube or the second tube is provided with an outer quadrangular portion, an outer hexagonal portion, or an outer octagonal portion that facilitates rotation; the outer side of the nozzle sleeve is provided with an outer quadrangular portion, an outer hexagonal portion, or an outer octagonal portion that facilitates rotation; and the outer side of the end cap is provided with an outer hexagonal portion or an outer octagonal portion that facilitates rotation.

[0014] Preferably, the end face of the end cap away from the first tube body is a plane or has a spherical groove; the end face of the end cap near the first tube body has a threaded mounting slot, and the end cap is installed on the end of the first tube body away from the second tube body through the threaded mounting slot, and the end face of the nozzle sleeve near the end cap is pressed against the inner end face of the threaded mounting slot.

[0015] Preferably, the first pipe is a straight pipe or a right-angle bend, and the second and third pipes are both straight pipes or right-angle bends.

[0016] The beneficial effects of the present invention are as follows: When the nozzle of the present invention is clogged, simply unscrew the end cap and then unscrew the nozzle assembly to clean the nozzle assembly, which saves time and effort, is highly efficient, has low intensity, and is simple and convenient to maintain. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 2 for Figure 1 Exploded view;

[0020] Figure 3 This is a top view of the end cap in this invention;

[0021] Figure 4 This is a schematic diagram of the nozzle outer casing in this invention;

[0022] Figure 5 A schematic diagram of the structure of a nozzle core with another shape;

[0023] Figure 6 This is a schematic diagram of the structure of the first tube with another shape.

[0024] The reference numerals in the diagram are as follows: 1-First tube body, 2-Second tube body, 3-Third tube body, 4-Nozzle assembly, 5-End cap, 6-Heating device, 7-Temperature sensor, 11-Air inlet, 12-Return port, 21-Feed inlet, 22-Temperature sensor mounting port, 41-Nozzle outer sleeve, 42-Nozzle inner core, 43-Nozzle cavity, 44-Nozzle hole, 45-Air channel, 46-Spray hole, 47-Wrench face, 51-Spherical groove, 52-End cap hole, 53-Outer octagonal part, 54-Threaded mounting slot, 61-Electric heating rod, 62-In mounting head, 63 External thread I, 421-Cylindrical section, 422-Conical section. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Reference Figure 1-2A nozzle includes a first tube 1, a second tube 2, a third tube 3, a nozzle assembly 4, and an end cap 5. The first tube 1 has an air inlet 11 and a return port 12 on its side wall. The second tube 2 is threaded into one end of the first tube 1 (specifically, one end of the second tube 2 may have an external thread, and the corresponding end of the first tube 1 may have a matching internal thread). The side wall of the second tube 2 has a feed inlet 21 and a temperature sensor mounting port 22. The third tube 3 is threaded into the end of the second tube 2 closest to the first tube 1 (specifically, one end of the third tube 3 may have an external thread, and the corresponding end of the second tube 1 may have a matching internal thread). The third tube 3 is located inside the first tube 1. The nozzle assembly 4 includes a nozzle sleeve 41 and a nozzle... The nozzle core 42 and nozzle sleeve 41 are threadedly connected to the end of the third tube 3 away from the second tube 2. The nozzle sleeve 41 has a nozzle cavity 43 inside, and the nozzle core 42 is located inside the nozzle cavity 43. The nozzle sleeve 41 has a nozzle hole 44 that passes through both ends in the center. The nozzle sleeve 41 also has several air grooves 45 that extend from the edge to the center on the end face away from the third tube 3. The head end of the nozzle core 42 is locked in the nozzle hole 44. The nozzle core 42 has a nozzle hole 46 that passes through both ends in the middle. The end cap 5 is threadedly connected to the end of the first tube 1 away from the second tube 2 (specifically, the end cap 5 can be provided with an internal thread, and the corresponding end of the second tube 2 can be provided with a matching external thread). The end cap 5 has an end cap hole 52 that passes through both ends and corresponds to the nozzle hole in the center.

[0027] The feed inlet 21 connects to the feed pipe to provide liquid fuel. The air inlet 11 connects to the blower. After entering through the air inlet 11, the air is blown from the air duct 45 to the middle of the nozzle outer sleeve end face 41, i.e., the root of the flame, to provide primary air (i.e., oxygen supply) for combustion of the nozzle. The return port 12 connects to the recovery pipe to recover unburned liquid fuel sprayed from the nozzle 43, thus saving energy.

[0028] The air inlet 11 and the return outlet 12 can be arranged axially on the side of the first pipe body 1, as shown in the figure. Figure 6 Alternatively, they can be arranged at intervals on the same radial plane, such as at intervals of 90 degrees or 180 degrees. The feed port 21 and the temperature sensor mounting port 22 can be arranged axially on the side of the second tube 2, or they can be arranged at intervals on the same radial plane, such as at intervals of 90 degrees or 180 degrees.

[0029] As a preferred technical solution, a heating device 6 is installed at the end of the second tube 2 away from the first tube 1, and a temperature sensor 7 is installed in the temperature sensor mounting port 22. The heating device 6 can preheat the liquid fuel entering from the feed port 21, so that the liquid fuel sprayed from the nozzle 46 has a certain temperature for easy ignition. The temperature sensor 7 installed in the temperature sensor mounting port 22 can monitor whether the liquid fuel has been preheated to the set temperature.

[0030] As a preferred technical solution, the heating device 6 includes an electric heating rod 61, which is fixed on a mounting head 62. The outer side of the mounting head 62 is provided with an external thread 163. The mounting head 63 is threadedly connected to the end of the second tube 2 away from the first tube, and is mounted on the combustion furnace through the external thread 63.

[0031] As a preferred technical solution, there are six air ducts 45 arranged in a spiral, and each air duct 45 is tangent to the nozzle hole 44.

[0032] As a preferred technical solution, refer to Figure 5 The nozzle inner core 42 includes a cylindrical section 421, with a tapered section 422 fixedly connected to one end of the cylindrical section 421 near the end cap 5. The cylindrical section 421 has an external thread II on its circumferential side, and is threadedly connected to the third tube 3. The nozzle inner core 42 has two symmetrical wrench faces 47 on its side for easy wrench insertion. These wrench faces 47 can also be hexagonal or octagonal, as long as they facilitate wrench insertion and rotation.

[0033] As a preferred technical solution, the first tube body 1, the second tube body 2, the third tube body 3, and the end cap 5 can be rotatably connected using pipe wrenches. Alternatively, the outer surface of the first tube body 1 or the second tube body 2 may be provided with rotatable outer quadrangular, hexagonal, or octagonal portions; see reference. Figure 4 The outer surface of the nozzle sleeve is provided with outer four corners, outer hexagons, or outer octagons for easy rotation; see reference. Figure 3 The outer side of the end cap is provided with an outer hexagonal or outer octagonal portion 53 for easy rotation. The outer square, outer hexagonal, and outer octagonal portions 53 can also be replaced with symmetrical wrench faces 47, as long as it is convenient to insert and rotate a wrench.

[0034] As a preferred technical solution, the end face of the end cap 5 away from the first tube body 1 is a plane or has a spherical groove 51; the end face of the end cap 5 near the first tube body 1 has a threaded mounting slot 54, and the end cap 5 is installed on the end of the first tube body 1 away from the second tube body 2 through the threaded mounting slot 54, and the end face of the nozzle sleeve 41 near the end cap 5 is pressed against the inner end face of the threaded mounting slot 54.

[0035] As a preferred technical solution, the first pipe body is a straight pipe or a right-angle bend, and the second pipe body and the third pipe body are both straight pipes or right-angle bends.

[0036] When the present invention is in operation, liquid fuel enters the second tube 2 through the feed port 21. The heating device 6 preheats the incoming liquid fuel. The temperature sensor 7 monitors whether the liquid fuel has been heated to the set temperature. The heated liquid fuel then enters the third tube 3, then passes through the nozzle core 42, and finally is sprayed out from the nozzle hole 46. The air inlet 11 is connected to a fan. After the air enters through the air inlet 11, it flows from the air channel 45 to the middle of the nozzle, that is, the root of the flame, to provide the nozzle with primary air (i.e. oxygen supply) for combustion. The return port 12 is connected to a recovery pipe to recover the unburned liquid fuel sprayed out from the nozzle hole 43, thus saving energy.

[0037] When the nozzle of the present invention becomes clogged, simply unscrew the end cap 5 and then unscrew the nozzle assembly 4 to clean the nozzle assembly 4. This saves time and effort, is highly efficient, has low stress, and is simple and convenient to maintain.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nozzle, characterized in that: include The first pipe body has an air inlet and a material return outlet on its side wall. The second tube is threaded to the inside of one end of the first tube, and a feed inlet and a temperature sensor mounting port are provided on the side wall of the second tube. The third tube is threaded into the end of the second tube near the first tube, and the third tube is located inside the first tube. The nozzle assembly includes a nozzle outer sleeve and a nozzle inner core. The nozzle outer sleeve is threaded to the end of the third tube away from the second tube. A nozzle cavity is opened inside the nozzle outer sleeve, and the nozzle inner core is located inside the nozzle cavity. A nozzle hole penetrating both ends is opened in the center of the nozzle outer sleeve. Several air grooves from the edge to the center are also opened on the end face of the nozzle outer sleeve away from the third tube. The head end of the nozzle inner core is locked in the nozzle hole, and a nozzle hole penetrating both ends is opened in the middle of the nozzle inner core. The end cap is threaded onto the end of the first tube body away from the second tube body. The end cap has a hole in the center that passes through both ends and corresponds to the nozzle.

2. The nozzle as described in claim 1, characterized in that: A heating device is installed in the end of the second tube that is away from the first tube.

3. The nozzle as described in claim 2, characterized in that: The heating device includes an electric heating rod, which is fixed to a mounting head. The outer side of the mounting head is provided with an external thread I, and the mounting head is threadedly connected to the end of the second tube away from the first tube.

4. The nozzle as claimed in claim 1, characterized in that: A temperature sensor is installed inside the temperature sensor mounting port.

5. The nozzle as described in claim 1, characterized in that: The number of air ducts is six, and each air duct is tangent to the nozzle hole.

6. The nozzle as claimed in claim 1, characterized in that: The depth of the air duct gradually decreases from the edge to the center.

7. The nozzle as claimed in claim 1, characterized in that: The nozzle core includes a cylindrical section, and a tapered section is fixedly connected to one end of the cylindrical section near the end cap. The cylindrical section has an external thread II on its circumferential side, and the cylindrical section is threadedly connected to the third tube body.

8. The nozzle as claimed in claim 1, characterized in that: The outer surface of the nozzle sleeve is provided with an outer four-corner section, an outer hexagonal section, or an outer octagonal section for easy rotation; the outer surface of the end cap is provided with an outer four-corner section, an outer hexagonal section, or an outer octagonal section for easy rotation.

9. The nozzle as claimed in claim 1, characterized in that: The end face of the end cap away from the first tube body is a plane or has a spherical groove; the end face of the end cap near the first tube body has a threaded mounting slot, and the end cap is installed on the end of the first tube body away from the second tube body through the threaded mounting slot, and the end face of the nozzle sleeve near the end cap is pressed against the inner end face of the threaded mounting slot.

10. The nozzle as claimed in claim 1, characterized in that: The first pipe is a straight pipe or a right-angle bend, and the second and third pipes are both straight pipes or right-angle bends.

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