Nozzle

Abstract

The utility model 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, the nozzle assembly can be cleaned only by screwing off the end cover and then screwing off the nozzle assembly, time and labor are saved, efficiency is high, strength is low, and maintenance is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the field of stoves, in particular to a nozzle. Background Art

[0002] Liquid fuel stoves are non-stationary cooking stoves that use liquid fuel as their energy source and are heated directly by fire. The nozzle is a core component of liquid fuel stoves. Because the nozzle's orifice is very small, it easily becomes clogged during use. Once clogged, the entire nozzle must be disassembled for cleaning, which is time-consuming, labor-intensive, inefficient, and labor-intensive. Utility Model Content

[0003] The utility model provides a nozzle, which solves the problem that the existing nozzle is difficult to disassemble and clean when blocked.

[0004] The technical solution of the present utility model is achieved as follows:

[0005] A nozzle comprises a first tube body, a second tube body, a third tube body, a nozzle assembly and an end cap; an air inlet and a return port are provided on the side wall of the first tube body; the second tube body is threadedly connected to the inside of one end of the first tube body, and a feed port and a temperature sensor mounting port are provided on the side wall of the second tube body; the third tube body is threadedly connected to the inside of one end of the second tube body close to the first tube body, and the third tube body is located in the first tube body; the nozzle assembly comprises a nozzle outer sleeve and a nozzle inner core, the nozzle outer sleeve is threadedly connected to the end of the third tube body away from the second tube body, a nozzle cavity is provided inside the nozzle outer sleeve, the nozzle inner core is located in the nozzle cavity, a nozzle hole is provided in the center of the nozzle outer sleeve that passes through both ends, a plurality of wind grooves are also provided from the edge to the middle on the end surface of the nozzle outer sleeve away from the third tube body, the head end of the nozzle inner core is clamped in the nozzle hole, and a nozzle hole is provided in the middle of the nozzle inner core that passes through both ends, the end cap is threadedly connected to the end of the first tube body away from the second tube body, and an end cap hole is provided in the center of the end cap that passes through both ends and corresponds to the nozzle hole.

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

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

[0008] Preferably, a temperature sensor is installed in the temperature sensor installation opening.

[0009] Preferably, the number of the air slots is six, and all of the air slots are tangent to the nozzle hole.

[0010] Preferably, the depth of the air trough gradually decreases from the edge to the middle.

[0011] Preferably, the nozzle inner core includes a cylindrical section, one end of the cylindrical section close to the end cover is fixedly connected to a conical section, the circumferential side of the cylindrical section is provided with an external thread II, and the cylindrical section is threadedly connected to the third tube body.

[0012] Preferably, the side surface of the nozzle inner core is provided with two symmetrical wrench surfaces for facilitating the insertion of a wrench.

[0013] Preferably, the outer side surface of the first tube body or the second tube body is provided with an outer square portion, an outer hexagon portion or an outer octagon portion for easy rotation; the outer side surface of the nozzle sleeve is provided with an outer square portion, an outer hexagon portion or an outer octagon portion for easy rotation; the outer side surface of the end cover is provided with an outer hexagon portion or an outer octagon portion for easy rotation.

[0014] Preferably, the end face of the end cover away from the first tube body is flat or has a spherical groove; the end face of the end cover close to the first tube body is provided with a threaded mounting slot, and the end cover 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 close to the end cover is pressed against the inner end face of the threaded mounting slot.

[0015] Preferably, the first tube body is a straight tube or a right-angled tube, and the second tube body and the third tube body are both straight tubes or right-angled tubes.

[0016] The beneficial effects of the utility model are as follows: when the nozzle of the utility model is clogged, it is only necessary to unscrew the end cover and then unscrew the nozzle assembly to clean the nozzle assembly, which saves time and effort, has high efficiency, low strength, and is simple and convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 these drawings without paying any creative work.

[0018] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 Exploded diagram;

[0020] Figure 3 This is a top view of the end cover of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the nozzle jacket in the utility model;

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

[0023] Figure 6 Schematic diagram of the structure of the first tube body in another shape.

[0024] Reference numerals in the figure: 1-first tube body, 2-second tube body, 3-third tube body, 4-nozzle assembly, 5-end cover, 6-heating device, 7-temperature sensor, 11-air inlet, 12-return port, 21-feed port, 22-temperature sensor installation port, 41-nozzle jacket, 42-nozzle inner core, 43-nozzle cavity, 44-nozzle hole, 45-air slot, 46-nozzle hole, 47-wrench surface, 51-spherical groove, 52-end cover hole, 53-external octagonal portion, 54-threaded mounting slot, 61-electric heating rod, 62-mounting head, 63 external thread I, 421-cylindrical section, 422-conical section. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-6, a nozzle comprises a first tube body 1, a second tube body 2, a third tube body 3, a nozzle assembly 4 and an end cover 5; an air inlet 11 and a return port 12 are provided on the side wall of the first tube body 1; the second tube body 2 is threadedly connected to the inside of one end of the first tube body 1 (specifically, one end of the second tube body 2 can be provided with an external thread, and the corresponding end of the first tube body 1 can be provided with a matching internal thread), and a feed port 21 and a temperature sensor installation port 22 are provided on the side wall of the second tube body 2; the third tube body 3 is threadedly connected to the inside of the end of the second tube body 2 close to the first tube body 1 (specifically, one end of the third tube body 3 can be provided with an external thread, and the corresponding end of the second tube body can be provided with a matching internal thread), and the third tube body 3 is located in the first tube body 1; the nozzle assembly 4 includes a nozzle jacket 41 and a nozzle The head inner core 42 and the nozzle outer shell 41 are threadedly connected to the end of the third tube body 3 away from the second tube body 2. A nozzle cavity 43 is provided inside the nozzle outer shell 41. The nozzle inner core 42 is located in the nozzle cavity 43. A nozzle hole 44 running through both ends is provided in the center of the nozzle outer shell 41. A plurality of wind grooves 45 extending from the edge to the middle are also provided on the end surface of the nozzle outer shell 41 away from the third tube body 3. The head end of the nozzle inner core 42 is clamped in the nozzle hole 44. A nozzle hole 46 running through both ends is provided in the middle of the nozzle inner core 42. The end cover 5 is threadedly connected to the end of the first tube body 1 away from the second tube body 2 (specifically, an internal thread can be provided on the end cover 5, and a matching external thread can be provided on the corresponding end of the second tube body 2). An end cover hole 52 running through both ends and corresponding to the nozzle hole is provided in the center of the end cover 5.

[0027] The feed port 21 is connected to the feed pipe, which provides liquid fuel. The air inlet 11 is connected to a fan. Air entering through the air inlet 11 is blown through the air slots 45 toward the center of the nozzle jacket end surface 41, at the root of the flame, providing primary air (i.e., oxygen) for combustion. The return port 12 is connected to a recovery pipe, which recovers unburned liquid fuel ejected from the nozzle orifice 43, saving energy.

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

[0029] As a preferred technical solution, a heating device 6 is installed in the end of the second tube 2 away from the first tube 1, and a temperature sensor 7 is installed in the temperature sensor installation port 22. The heating device 6 can preheat the liquid fuel entering from the feed port 21, so that the liquid fuel ejected from the nozzle 46 has a certain temperature to facilitate ignition. The temperature sensor 7 is installed in the temperature sensor installation port 22 to 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 I63. The mounting head 63 is threadedly connected to the end of the second tube body 2 away from the first tube body, and is installed on the combustion furnace through the external thread 63.

[0031] As a preferred technical solution, the number of the air slots 45 is six and they are arranged in a spiral shape. The air slots 45 are all tangent to the nozzle hole 44 .

[0032] As a preferred technical solution, refer to Figure 5 The nozzle core 42 includes a cylindrical section 421, with a conical section 422 fixedly connected to one end of the cylindrical section 421 near the end cap 5. The cylindrical section 421 is provided with an external thread II on its circumferential side, and is threadedly connected to the third tube 3. The side of the nozzle core 42 is provided with two symmetrical wrench flats 47 for convenient wrench insertion. The wrench flats 47 can also be modified to have a regular hexagonal portion or a regular octagonal portion, as long as it is convenient for 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 connected by a pipe clamp. Alternatively, the outer side surface of the first tube body 1 or the second tube body 2 is provided with an outer square corner portion, an outer hexagonal portion or an outer octagonal portion for easy rotation; Figure 4 The outer side surface of the nozzle jacket is provided with an outer square portion, an outer hexagonal portion or an outer octagonal portion for easy rotation; Figure 3 The outer side surface of the end cap is provided with an outer hexagonal portion or an outer octagonal portion 53 for easy rotation. The outer quadrangular portion, the outer hexagonal portion and the outer octagonal portion 53 can also be changed to a symmetrical wrench surface 47, as long as it is convenient for the wrench to be inserted and rotated.

[0034] As a preferred technical solution, the end face of the end cover 5 away from the first tube body 1 is flat or has a spherical groove 51; the end face of the end cover 5 close to the first tube body 1 is provided with a threaded mounting slot 54, and the end cover 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 close to the end cover 5 is pressed against the inner end face of the threaded mounting slot 54.

[0035] As a preferred technical solution, the first tube body is a straight tube or a right-angled tube, and the second tube body and the third tube body are both straight tubes or right-angled tubes.

[0036] When the present invention is working, liquid fuel enters the second tube body 2 from the feed port 21, the heating device 6 preheats the liquid fuel, and the temperature sensor 7 monitors whether the liquid fuel is heated to the set temperature. The heated liquid fuel then enters the third tube body 3, then passes through the nozzle inner core 42, and finally is ejected from the nozzle hole 46. The air inlet 11 is connected to the fan. After entering from the air inlet 11, the wind goes from the wind groove 45 to the middle of the nozzle, that is, the root of the flame, to provide the nozzle with primary air for combustion (that is, oxygen supply). The return port 12 is connected to the recovery pipe to recover the liquid fuel ejected from the nozzle hole 43 but not burned, thereby saving energy.

[0037] When the nozzle of the utility model is clogged, it is only necessary to unscrew the end cover 5 and then unscrew the nozzle assembly 4 to clean the nozzle assembly 4, which saves time and effort, has high efficiency, low strength, 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 replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A nozzle, characterized in that: include A first tube body, wherein an air inlet and a material return port are provided on a side wall of the first tube body; The second tube body is threadedly connected to the inside of one end of the first tube body, and a feed port and a temperature sensor installation port are opened on the side wall of the second tube body; a third tube body, threadedly connected to an end of the second tube body close to the first tube body, and the third tube body is located in the first tube body; The nozzle assembly includes a nozzle outer shell and a nozzle inner core. The nozzle outer shell is threadedly connected to the end of the third tube body away from the second tube body. A nozzle cavity is opened inside the nozzle outer shell. The nozzle inner core is located in the nozzle cavity. A nozzle hole is opened in the center of the nozzle outer shell and passes through both ends. A plurality of wind grooves extending from the edge to the middle are also opened on the end surface of the nozzle outer shell away from the third tube body. The head end of the nozzle inner core is clamped in the nozzle hole. A nozzle hole is opened in the middle of the nozzle inner core and passes through both ends. The end cover is threadedly connected to one end of the first tube body away from the second tube body, and an end cover hole is opened in the center of the end cover, which passes through both ends and corresponds to the spray hole.

2. The nozzle according to claim 1, wherein: A heating device is installed in an end of the second tube away from the first tube.

3. The nozzle according to claim 2, wherein: The heating device includes an electric heating rod, which is fixed on the mounting head. The outer side of the mounting head is provided with an external thread I, and the mounting head is threadedly connected to one end of the second tube body away from the first tube body.

4. The nozzle according to claim 1, wherein: A temperature sensor is installed in the temperature sensor installation opening.

5. The nozzle according to claim 1, wherein: There are six air slots, and all of the air slots are tangent to the nozzle hole.

6. The nozzle according to claim 1, wherein: The depth of the air trough gradually decreases from the edge to the middle.

7. The nozzle according to claim 1, wherein: The nozzle inner core includes a cylindrical section, one end of the cylindrical section close to the end cover is fixedly connected to a conical section, the circumferential side of the cylindrical section is provided with an external thread II, and the cylindrical section is threadedly connected to the third tube body.

8. The nozzle according to claim 1, wherein: The outer side surface of the nozzle jacket is provided with an outer square portion, an outer hexagon portion or an outer octagon portion for easy rotation; the outer side surface of the end cover is provided with an outer square portion, an outer hexagon portion or an outer octagon portion for easy rotation.

9. The nozzle according to claim 1, wherein: The end face of the end cover away from the first tube body is flat or has a spherical groove; the end face of the end cover close to the first tube body is provided with a threaded mounting slot, and the end cover 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 close to the end cover is pressed against the inner end face of the threaded mounting slot.

10. The nozzle according to claim 1, wherein: The first tube body is a straight tube or a right-angled tube, and the second tube body and the third tube body are both straight tubes or right-angled tubes.

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