A gas nozzle assembly and a gas heating device using the same.

Abstract

This invention discloses a gas nozzle assembly, including a nozzle body and a mounting bracket for supporting the nozzle body. The mounting bracket has a mounting hole through which the nozzle body passes, and the protruding part of the nozzle body is clamped and fixed to the mounting bracket with a locking nut. In this invention, the nozzle body, mounting bracket, and locking nut are fixedly connected as a whole to form a gas nozzle assembly, which is not only simple in structure but also easy to assemble and disassemble, making it suitable for industrial production. This invention also discloses a gas heating device using the above-mentioned gas nozzle assembly. The nozzle assembly can be quickly installed and fixed on the gas heating device, improving the assembly efficiency of the entire gas heating device, while achieving precise alignment between the nozzle and the burner's air inlet, ensuring the combustion efficiency of the gas heating device.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically, it relates to a gas nozzle assembly and a gas heating device using the same. Background Technology

[0002] Gas heating devices are a general term for devices that mix fuel and air in a specific manner for combustion. They offer advantages such as high combustion efficiency and rapid heating, making them widely used in household appliances, particularly in clothes dryers and gas water heaters. A gas heating device includes a combustion chamber, a burner, a gas nozzle, and an inlet pipe. The burner has an inlet and an outlet. The gas nozzle's jet orifice is located at the burner's inlet. The burner is situated within the combustion chamber, and gas flows into it through the jet orifice, where it is ignited to heat the air inside the combustion chamber.

[0003] The gas nozzle's inlet end is fixed to the inlet pipe by screws or welding, while the gas nozzle's jet orifice is positioned opposite the burner's inlet end. Generally, the gas nozzle and burner are fixed before the burner is placed in the combustion chamber to achieve precise positioning of the inlet position. However, when replacing the gas nozzle, the burner needs to be removed from the combustion chamber, and then the burner and nozzle need to be disassembled. The replacement process is cumbersome and not conducive to the replacement and daily maintenance of the gas nozzle. Fixing the burner in the combustion chamber and then fixing the gas nozzle's inlet position often cannot guarantee that the gas nozzle's jet orifice is precisely aligned with the burner's inlet end, resulting in low combustion efficiency of the gas heating device.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a gas nozzle assembly to achieve the purpose of rapid assembly and disassembly of the nozzle assembly.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A gas nozzle assembly includes a nozzle body and a mounting bracket for supporting the nozzle body. The mounting bracket has a mounting hole through which the nozzle body passes. The protruding part of the nozzle body is clamped and fixed on the mounting bracket in cooperation with a locking nut.

[0008] Furthermore, the nozzle includes a nozzle body, the outer surface of which is provided with threads, and the mounting bracket includes a first flange extending in a vertical direction, on which a mounting hole is provided, and the threads pass through the mounting hole to engage with a locking nut.

[0009] Furthermore, the mounting bracket includes a vertically arranged mounting plate with a mounting hole in the middle. The nozzle body is cylindrical and includes a nozzle head and a threaded part. A radially protruding positioning block is provided between the nozzle head and the threaded part. The threaded part passes through the mounting hole and is tightened with a locking nut. The positioning block fits against the mounting plate on the outer periphery of the mounting hole.

[0010] Furthermore, the locking nut is located on the front side of the mounting plate, and the mounting plate has a positioning groove in the middle that protrudes towards the front side of the mounting plate and opens towards the rear side of the mounting plate. The positioning groove has a mounting hole in the center, and the positioning block engages with the positioning groove.

[0011] Furthermore, the positioning block is hexagonal, and the positioning groove is an internal hexagonal groove that fits the positioning block. The positioning groove extends along the axial direction of the mounting plate and protrudes from the front side of the mounting plate, with the protrusion fitting against the locking nut.

[0012] Furthermore, the left and right sides of the mounting plate bend backward to form the first folded edge, and the bent extension ends of the first folded edge on the left and right sides bend backward to form the second folded edge, and screw holes are provided on the second folded edge.

[0013] Another object of the present invention is to provide a gas heating device to achieve the purpose of quickly and accurately installing a nozzle in the gas heating device.

[0014] The present invention also provides a gas heating device, including a housing, wherein the housing has a hollow cavity forming a combustion chamber, and the nozzle assembly is any of the nozzle assemblies described above.

[0015] Furthermore, a fixing bracket is installed on the outer wall of the housing. The fixing bracket includes a vertically arranged first plate with a positioning post extending radially outward from the housing. The mounting bracket has a positioning hole through which the positioning post passes.

[0016] Furthermore, a burner is provided in the combustion chamber, and the burner has an air inlet. Through holes coaxially arranged with the air inlet are respectively opened on the first plate and the housing. The nozzle body passes through the through hole on the first plate and is placed at the air inlet end of the burner.

[0017] Furthermore, the left and right sides of the first plate bend backward to form the first flange, and the bent extension ends of the first flange on the left and right sides bend and extend to the opposite side to form the second flange. The second flange is fixedly connected to the shell by screws.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0019] 1. In this invention, the nozzle body, mounting bracket and locking nut are fixedly connected as a whole, so the connection method of the nozzle assembly and nozzle components is simple, which facilitates the assembly of the nozzle assembly and the disassembly and replacement of each component. The assembly efficiency is high and it is easy to industrialize.

[0020] 2. In this invention, the nozzle assembly can be quickly installed and fixed on the gas heating device, achieving precise alignment between the nozzle body and the burner's air inlet. This not only ensures the combustion efficiency of the gas heating device but also improves the overall assembly efficiency of the gas heating device.

[0021] 3. In this invention, the nozzle body is provided with a positioning block, and the mounting bracket is provided with a positioning groove that cooperates with the positioning block. Based on the threaded part of the nozzle body and the mounting hole on the mounting bracket being fitted and inserted, the cooperation between the positioning block and the positioning groove further improves the stability of the assembly structure.

[0022] 4. In this invention, a fixed bracket is installed on the housing of the gas heating device, and a positioning post is provided on the fixed bracket. A positioning hole that cooperates with the positioning post is provided on the mounting bracket. The fixed bracket and the mounting bracket are sleeved and connected, which realizes the initial fixation of the nozzle body and simplifies the installation process.

[0023] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0024] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the gas heating device in an embodiment of the present invention;

[0026] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0027] Figure 3 This is a bottom view of the gas heating device in an embodiment of the present invention;

[0028] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0029] Figure 5 This is an exploded view of the nozzle assembly in an embodiment of the present invention;

[0030] Figure 6 This is an exploded view of the nozzle assembly from another angle in an embodiment of the present invention;

[0031] Figure 7 This is a front view of the nozzle assembly in an embodiment of the present invention;

[0032] Figure 8 This is a right view of the nozzle assembly in an embodiment of the present invention;

[0033] Figure 9 yes Figure 8 Sectional view along the AA direction.

[0034] In the diagram: 100, housing; 200, combustion chamber; 300, burner; 400, gas pipeline; 500, solenoid valve; 1, nozzle; 11, nozzle body; 111, threaded part; 112, nozzle head; 12, positioning block; 13, gas passage; 14, jet hole; 2, mounting bracket; 21, mounting plate; 22, first folded edge; 23, second folded edge; 24, mounting hole; 25, screw hole; 26, positioning hole; 27, positioning groove; 28, protrusion; 3, locking nut; 4, fixed bracket; 41, positioning post; 42, first plate; 43, first flange; 43, second flange; 5, first clamping nut; 6, second clamping nut; 7, support plate; 8, fixed base; 9, support base.

[0035] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0037] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] Example 1

[0040] like Figures 1 to 9 As shown, this embodiment of the invention provides a gas nozzle assembly, including a nozzle body 11 and a mounting bracket 2 for supporting the nozzle body 11. The mounting bracket 2 has a mounting hole 24 through which the nozzle body 11 passes. The protruding part of the nozzle body 11 is clamped and fixed to the mounting bracket 2 in cooperation with a locking nut 3. The nozzle body 11, the mounting bracket 2, and the locking nut 3 are fixedly connected as a whole, thereby realizing the nozzle assembly 1. This not only simplifies the connection method of the nozzle assembly, but also facilitates the assembly of the nozzle assembly and the disassembly and replacement of various components, resulting in high assembly efficiency and ease of industrial production.

[0041] like Figure 5 and Figure 6 As shown, in this embodiment, the mounting bracket 2 includes a vertically arranged mounting plate 21 with a mounting hole 24 in the middle. The nozzle body 11 is cylindrical and includes a nozzle head 112 and a threaded portion 111. A radially protruding positioning block 12 is provided between the nozzle head 112 and the threaded portion 111. The threaded portion 111 passes through the mounting hole 24 and is tightened with a locking nut 3. The positioning block 12 fits against the mounting plate 21 on the outer periphery of the mounting hole so that the nozzle head 112 and the threaded portion 111 are located on the front and rear sides of the mounting plate 21, thereby clamping and fixing the nozzle body 11 to the mounting bracket 2.

[0042] like Figure 8 and Figure 9 As shown, in this embodiment, the nozzle 1 includes a nozzle body 11 and a gas passage 13 disposed inside the nozzle body 11. The air inlet of the gas passage 13 is opened at the end of the threaded portion 111, and the jet hole 14 of the gas passage 13 is opened at the nozzle head 112. The threaded portion 111 is inserted into the mounting hole 24 from the rear side of the mounting plate 21 and passes through the front side of the mounting plate 21 to be threadedly connected to the locking nut 3.

[0043] like Figure 8 and Figure 9 As shown, in this embodiment, the inlet of the gas passage 13 and the jet hole 14 are arranged along the axis of the gas passage 13. The gas flows into the inner gas passage 13 from the inlet end of the gas passage 13 and then flows out through the jet hole 14. The radial dimension of the jet hole 14 is smaller than the radial dimension of the inlet of the gas passage 13 to control the flow rate of the gas and prevent the gas flow rate from being too fast, so that the combustion reaction is too intense and the heat release is too violent, thus achieving a stable and efficient combustion heat release reaction.

[0044] like Figure 6 and Figure 9As shown, in this embodiment, the locking nut 3 is located on the front side of the mounting plate 21. The mounting plate 21 has a positioning groove 27 in the middle that protrudes towards the front side of the mounting plate 21 and opens towards the rear side of the mounting plate 21. The positioning groove 27 has a mounting hole 24 in the center. The positioning block 12 engages with the positioning groove 27. Based on the threaded part 111 of the nozzle body 11 being fitted and inserted into the mounting hole 24 on the mounting bracket 2, the cooperation between the positioning block 12 and the positioning groove 27 further improves the stability of the assembly structure, making the connection between the nozzle body 11 and the mounting bracket 2 tighter and preventing loosening.

[0045] like Figure 6 and Figure 9 As shown, in this embodiment, the positioning block 12 is embedded in the positioning groove 27 and fits against the bottom of the positioning groove 27, so that the positioning groove 27 limits the positioning block 12, thereby fixing the nozzle 1. Preferably, the positioning groove 27 matches the shape of the positioning block 12, and the edge of the positioning block 12 fits against the edge of the positioning groove 27, so that the positioning block 12 is limited in the positioning groove 27, making the connection between the nozzle body 11 and the mounting bracket 2 tighter and preventing loosening.

[0046] like Figures 5 to 7 As shown, in this embodiment, the positioning block 12 is hexagonal, and the positioning groove 27 is an internal hexagonal groove adapted to the positioning block 12. The positioning groove 27 extends along the axial direction of the mounting plate 21 and protrudes from the front side of the mounting plate 21. The protrusion 28 fits against the locking nut 3 so that the shapes of the positioning groove 27, the positioning block 12 and the locking nut 3 match, ensuring that the nozzle body 11, the mounting bracket 2 and the locking nut 3 are clamped and fixed.

[0047] like Figure 7 As shown, in this embodiment, a positioning hole 26 is provided on the mounting plate 21 on the outer periphery of the positioning groove 27; preferably, a plurality of positioning holes 26 are symmetrically arranged along the center line of the mounting plate 21, so as to preliminarily determine the position of the nozzle assembly installed on the combustion heating device through the positioning hole 26.

[0048] like Figure 5 and Figure 6 As shown, in this embodiment, the left and right sides of the mounting plate 21 bend backward to form first folded edges 22, and the bent extension ends of the first folded edges 22 on the left and right sides bend backward to form second folded edges 23. Screw holes 25 are provided on the second folded edges 23. The second folded edges 23 form a hanging lug structure, which facilitates the installation of the nozzle assembly on the gas heating device.

[0049] With the above-mentioned nozzle assembly, the nozzle body 11, the mounting bracket 2 and the locking nut 3 are fixedly connected as a whole to realize the nozzle 1 assembly. Not only is the connection method simple, but it is also easy to assemble and disassemble, and easy to realize industrial production. The positioning block 12 provided on the nozzle body 11 is embedded in the positioning groove 27 provided on the mounting bracket 2. Based on the close fit between the threaded part 111 and the mounting hole 24 on the mounting bracket 2, the tightness of the connection between the nozzle body 11 and the mounting bracket 2 is further improved.

[0050] Example 2

[0051] like Figures 1 to 4 As shown, this embodiment of the invention provides a gas heating device, including a housing 100, with a hollow cavity forming a combustion chamber 200 within the housing 100, and the aforementioned gas nozzle assembly mounted on the housing 100. The nozzle assembly is mounted on the gas heating device, which not only enables the nozzle 1 to be quickly installed and fixed on the gas heating device, improving the assembly efficiency of the entire gas heating device, but also ensures the air intake position of the nozzle 1, thereby ensuring the combustion efficiency of the gas heating device.

[0052] like Figure 1 and Figure 2 As shown, in this embodiment, a fixing bracket 4 is installed on the outer wall of the housing 100. The fixing bracket 4 includes a vertically arranged first plate 42, on which a positioning post 41 extends radially outward from the housing 100. A positioning hole 26 is provided on the mounting bracket 2 for the positioning post 41 to pass through, and the positioning post 41 is sleeved on the positioning hole 26. By mounting the mounting bracket 2 on the fixing bracket 4, the nozzle body 11 is initially fixed, the air inlet position of the nozzle 1 is determined, the installation process is simplified, and there is no need for cumbersome processes such as screwing or welding.

[0053] like Figure 3 and Figure 4 As shown, in this embodiment, a burner 300 is provided in the combustion chamber 200. The burner 300 is provided with an air inlet. The first plate 42 and the housing 100 are respectively provided with through holes coaxially arranged with the air inlet. The nozzle body 11 passes through the through hole on the first plate 42 and is placed at the air inlet end of the burner 300 to accurately determine the air inlet position of the nozzle 1.

[0054] like Figure 3 and Figure 4 As shown, in this embodiment, the nozzle body 11 is provided with a gas passage 13 inside, and a jet hole 14 is provided on the nozzle body 11. The inlet end of the burner 300 is coaxially arranged with the jet hole 14 so that the jet hole 14 of the nozzle 1 and the inlet end of the burner 300 are precisely aligned, ensuring that the gas flows into the burner 300 better after being ejected from the nozzle 1, thereby improving the combustion efficiency of the entire combustion heating device and better completing the heat exchange.

[0055] like Figure 1 and Figure 2 As shown, in this embodiment, the left and right sides of the first plate 42 bend backward to form a first flange 43, and the bent extension ends of the first flange 43 on the left and right sides bend backward to form a second flange 44. The second flange 44 is fixedly connected to the housing 100 by screws.

[0056] like Figure 1 and Figure 2 As shown, in this embodiment, a support plate 7 is also installed on the outer wall of the housing 100. The fixed bracket 4 and the support plate 7 are arranged vertically. The support plate 7 extends upward along the outer wall of the combustion chamber 200. The extended end of the support plate 7 is bent towards the bottom of the fixed bracket 4 in the horizontal direction to support the fixed bracket 4 and the nozzle assembly fixedly connected to the fixed bracket 4, so that the connection between the fixed bracket 4 and the nozzle assembly is more secure, thereby better fixing it on the combustion chamber 200.

[0057] like Figure 3 As shown, in this embodiment, a support base 9 for supporting the burner 300 is provided on the inner wall of the housing 100. The burner 300 is provided with an air outlet. The inner wall of the combustion chamber 200 of the air outlet of the burner 300 has a gap. Screw holes are respectively opened on the side of the support base 9 opposite to the burner 300 and close to the air outlet of the burner 300. Screws pass through the screw holes of the support base 9 and the burner 300 in sequence, thereby fixing the support base 9 and the burner 300 together.

[0058] like Figure 1 and Figure 2 As shown, in this embodiment, the gas heating device further includes a gas pipeline 400 and a solenoid valve 500 for controlling the gas flow rate. The gas pipeline 400 has an inlet end and an outlet end. The replacement connector (not shown in the figure) installed at the inlet end of the gas pipeline 400 and the outlet port of the solenoid valve 500 is sealed and connected by a second clamping nut 6. The outlet end of the gas pipeline 400 and the inlet end of the nozzle 1 are sealed and connected by a first clamping nut 5.

[0059] like Figure 1 and Figure 2 As shown, in this embodiment, a fixed base 8 is provided between the combustion chamber 200 and the solenoid valve 500. The fixed base 8 includes a vertically arranged fixing part and a horizontally arranged supporting part. The fixing part and the supporting part are integrally connected in an L-shape. The fixing part is fixedly connected to the outer wall of the housing 100, and the supporting part is fixedly connected to the solenoid valve 500 by screws.

[0060] like Figure 3 and Figure 4As shown in this embodiment, the combustion chamber 200 is provided with an air inlet and a heating gas outlet. The burner 300 is provided with an ignition needle (not shown in the figure) to ignite the gas to heat the air at the inlet of the combustion chamber 200. The heated air flows out through the outlet of the combustion chamber 200. The high-temperature air can be used to heat the clothes to be dried in the dryer or the cold water in the heater. Because the gas is fully burned and has high combustion efficiency, it has high heat exchange efficiency.

[0061] With the aforementioned gas heating device, the positioning hole 26 on the mounting bracket 2 is fitted onto the positioning post 41 of the fixed bracket 4, which not only achieves the initial fixation of the nozzle 1, but also simplifies the installation process and facilitates the replacement of the nozzle 1; the inlet end of the burner 300 is coaxially set with the jet hole 14, thereby accurately determining the air intake position and ensuring that the gas flows out of the jet hole 14 of the nozzle 1 and flows into the burner 300 better, thereby improving the combustion efficiency of the entire combustion heating device and better completing heat exchange; due to the complete combustion of the gas, the combustion reaction generates a large amount of heat to heat the air in the combustion chamber 200, and the heated high-temperature air flows out from the outlet end of the combustion chamber 200 to act on the clothes to be dried in the dryer or the cold water in the heater, thereby quickly achieving heat exchange.

[0062] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A gas nozzle assembly, comprising a nozzle body, characterized in that: It also includes a mounting bracket for supporting the nozzle body; The mounting bracket includes a vertically mounted mounting plate with a mounting hole in the middle for the nozzle body to pass through. The nozzle body is clamped and fixed to the mounting bracket by a locking nut. The left and right sides of the mounting plate bend backward to form the first folded edge, and the bent extension ends of the first folded edge on the left and right sides bend and extend to the opposite side to form the second folded edge. Screw holes are provided on the second folded edge.

2. A gas nozzle assembly according to claim 1, characterized in that: The nozzle body is cylindrical and includes a nozzle head and a threaded part. A radially protruding positioning block is provided between the nozzle head and the threaded part. The threaded part passes through the mounting hole and is tightened with a locking nut. The positioning block fits against the mounting plate on the outer periphery of the mounting hole.

3. A gas nozzle assembly according to claim 2, characterized in that: The locking nut is located on the front side of the mounting plate. The mounting plate has a positioning groove in the middle that protrudes towards the front side of the mounting plate and opens towards the rear side of the mounting plate. The positioning groove has a mounting hole in the center, and the positioning block engages with the positioning groove.

4. A gas nozzle assembly according to claim 3, characterized in that: The positioning block is hexagonal, and the positioning groove is an internal hexagonal groove that fits the positioning block. The positioning groove extends along the axial direction of the mounting plate and protrudes from the front side of the mounting plate. The protrusion fits into the locking nut.

5. A gas nozzle assembly according to claim 4, characterized in that: Positioning holes are provided on the mounting plate on the outer periphery of the positioning groove; multiple positioning holes are symmetrically arranged along the center line of the mounting plate.

6. A gas heating device, comprising a housing, wherein the housing has a hollow cavity forming a combustion chamber, and a gas nozzle assembly as described in any one of claims 1 to 5 is mounted on the housing, characterized in that: A fixing bracket is installed on the outer wall of the shell, and the fixing bracket includes a vertically arranged first plate; The first plate is provided with a positioning post extending radially outward from the housing. The mounting bracket is provided with a positioning hole for the positioning post to pass through. The mounting post is sleeved on the positioning hole to achieve the initial fixation of the gas nozzle assembly.

7. A gas heating device according to claim 6, characterized in that: The combustion chamber is equipped with a burner, which has an air inlet. The first plate and the housing are respectively provided with through holes coaxial with the air inlet. The nozzle body passes through the through hole on the first plate and is placed at the air inlet end of the burner.

8. A gas heating device according to claim 6 or 7, characterized in that: The left and right sides of the first plate bend backward to form the first flange, and the bent extension ends of the first flange on the left and right sides bend and extend to the opposite side to form the second flange. The second flange is fixedly connected to the shell by screws.

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