Combustor and gas water heater

Abstract

The utility model relates to the technical field of combustors, in particular to a combustor and a gas water heater. The combustor comprises a distribution plate, two supports and two wind shields, the two supports are connected to the two ends, in the front-back direction, of the distribution plate one by one, and the two wind shields are arranged at the two ends, in the left-right direction, of the distribution plate one by one; the two ends, in the front-back direction, of each wind shield are matched with the corresponding supports in a buckled mode so that the two supports can clamp the two ends, in the front-back direction, of the fire grate. The two supports are prevented from being separated through buckling matching of the wind shield and the two supports, the two ends of the fire grate are clamped between the two supports and are not prone to disengaging, fixed installation of the fire grate is achieved, assembling operation is simplified, and the assembling efficiency of the combustion system is improved. And meanwhile, the wind shield and the two brackets are assembled in a clamping manner, so that the assembly strength of the wind shield and the brackets is improved, and the stability and the reliability of the combustor are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a burner and a gas water heater. Background Art

[0002] In the combustion system of a gas water heater, there is a combustion chamber shell and a burner located within the combustion chamber shell. The burner is composed of a fire grate assembly structure and a plurality of fire grate arranged side by side and installed within the fire grate assembly structure. The fire grate assembly structure generally includes two brackets, a distribution plate, and a retaining spring. The two brackets are respectively connected to the front and rear ends of the distribution plate. When the burner is assembled, the bottom of the fire grate is placed on the distribution plate and clamped between the front and rear brackets. The front and rear brackets are connected by a retaining spring to prevent the two brackets from detaching, so that the front and rear ends of the fire grate are respectively clamped and fixed to the distribution plate by the front and rear brackets. At the same time, in order to reduce the air that flows directly from both sides of the burner without passing through the distribution plate and participates in the combustion reaction, resulting in incomplete combustion, a windshield is also required to be provided on the side of the combustion chamber shell. The windshield is mounted on the combustion chamber shell by screws. Therefore, the existing combustion system has the problem that the retaining spring needs to be installed when the burner is assembled, and the windshield needs to be fixed to the side of the combustion chamber shell by screws. This results in a large number of assembly components for the combustion system, increases the complexity of the assembly operation process, and makes the assembly efficiency of the combustion system low. Utility Model Content

[0003] One of the technical problems solved by the present invention is to provide a burner that can effectively solve the technical problems in the prior art where the windshield of the combustion system is fixed to the combustion chamber shell with screws and the burner brackets are connected with retaining springs, resulting in complicated assembly operation and low assembly efficiency.

[0004] The second technical problem solved by the present invention is to provide a gas water heater, which can effectively solve the technical problems in the prior art that the wind shield of the combustion system is fixed to the combustion chamber shell with screws and the burner brackets are connected with retaining springs, resulting in complicated assembly operation and low assembly efficiency.

[0005] The first technical problem mentioned above is solved by the following technical solution:

[0006] The burner includes a distribution plate, two brackets and two wind shields, wherein the two brackets are respectively connected to the two ends of the distribution plate along the front-to-back direction, and the two wind shields are respectively arranged at the two ends of the distribution plate along the left-to-right direction; the two ends of each wind shield along the front-to-back direction are respectively engaged with the corresponding brackets so that the two brackets clamp the two ends of the fire bar along the front-to-back direction.

[0007] Compared with the background technology, the burner of the present invention has the following beneficial effects:

[0008] In the burner's fire grate assembly structure, two brackets are connected to the front-to-back ends of the distribution plate, and two windshields are provided at the left-to-right ends of the distribution plate. The windshields' ends in the front-to-back direction are respectively engaged with the corresponding brackets. When assembling the burner, the fire grate is placed on the distribution plate and located between the two brackets. The windshields engage with the two brackets to clamp the fire grate's ends in the front-to-back direction, preventing the two brackets from separating. This allows the fire grate's ends to be clamped between the two brackets and prevent them from coming out, thus achieving a fixed installation of the fire grate. On the one hand, the burner's fire grate can be fixed without the need for retaining springs. On the other hand, windshields are provided directly at the left-to-right ends of the distribution plate, eliminating the need to screw the windshields to the combustion chamber housing. This saves on installation components, simplifies assembly operations, and improves the assembly efficiency of the combustion system. At the same time, the windshield is assembled with the two brackets by engaging them, which improves the assembly strength of the windshield and the brackets, thereby improving the stability and reliability of the burner.

[0009] In one embodiment, the windshield includes a main body plate, and one of the locking plates and the locking holes is provided at both ends of the main body plate along the front-to-back direction, and the other of the locking plates and the locking holes is provided at both ends of the bracket along the left-to-right direction, and the locking plates at least partially pass through the corresponding locking holes and are snap-fitted with the main body plate or the bracket where the locking holes are located.

[0010] In one embodiment, the locking plate includes a connecting portion and a paddle, the connecting portion is connected to the main plate or the bracket, and the paddle is movably connected to the connecting portion. When the connecting portion is inserted into the corresponding lock hole, the paddle passes through the lock hole and bends to the outside of the lock hole, so that the bracket and the main plate are snap-fitted together.

[0011] In one embodiment, the plectrum has an extrusion slope, and the extrusion slope at one end of the plectrum close to the connecting portion is located in the lock hole. When the plectrum is bent to the outside of the lock hole, the main plate or the bracket where the lock hole is located abuts against the extrusion slope.

[0012] Alternatively, the main body plate or the bracket where the lock hole is located is provided with the extrusion inclined surface, and the paddle abuts against the extrusion inclined surface when being bent to the outside of the lock hole.

[0013] In one embodiment, the inclination angle of the extrusion slope is 1° to 5°.

[0014] In one embodiment, the connecting portion is connected to the main body plate, and at least one limiting portion is provided at both ends of the bracket along the left and right directions. When the paddle is bent to the outside of the lock hole, at least one limiting portion is located between the lock hole and the paddle to prevent the paddle from bending in the opposite direction.

[0015] In one embodiment, two limiting portions are spaced apart at both ends of the bracket along the left-right direction, and the paddle is engaged between the corresponding two limiting portions when bent to the outside of the lock hole.

[0016] In one embodiment, the wind shield includes a vertical plate and a horizontal plate, and the two ends of the vertical plate along the front-to-back direction are respectively engaged with the corresponding brackets; the bottom end of the vertical plate is connected to the distribution plate, and the top end of the vertical plate is extended in the direction away from the distribution plate and is provided with the horizontal plate.

[0017] In one embodiment, the distribution plate and the wind shield are connected as one piece.

[0018] The second technical problem mentioned above is solved by the following technical solution:

[0019] A gas water heater comprises the burner mentioned above.

[0020] Compared with the background technology, the gas water heater of the present invention has the following beneficial effects:

[0021] The windshield is fastened to the two brackets to clamp the ends of the fire bar in the front-to-back direction, preventing the two brackets from separating. The ends of the fire bar are clamped between the two brackets and are difficult to dislodge, thus achieving a fixed installation of the fire bar. On the one hand, the burner's fire bars can be fixed and installed without the need for retaining springs. On the other hand, the windshield is directly provided at both ends of the distribution plate in the left-right direction, eliminating the need to fix the windshield to the combustion chamber housing with screws. This saves installation parts, simplifies assembly operations, and improves the assembly efficiency of the combustion system. At the same time, the windshield is assembled with the two brackets through a fastening method, which improves the assembly strength of the windshield and brackets, thereby improving the stability and reliability of the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the burner provided by the embodiment of the utility model Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the burner provided by the embodiment of the utility model Figure 2 ;

[0024] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 This is a partial structural diagram of a distribution plate and a wind shield provided by an embodiment of the present utility model;

[0026] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0027] The names and numbers of the components in the figure are as follows:

[0028] 10. Fire broiler;

[0029] 1. Distribution plate; 2. Bracket; 21. Lock hole; 22. Limiting part;

[0030] 3. Windshield; 31. Main body plate; 311. Vertical plate; 312. Horizontal plate; 32. Locking plate; 321. Connecting part; 322. Paddle; 3220. Extrusion slope. DETAILED DESCRIPTION

[0031] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly understood, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of it.

[0032] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this embodiment, the terms "top," "bottom," "right," "left," "front," "back," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments.

[0034] like Figure 1As shown, this embodiment provides a gas water heater comprising a burner, which comprises a fire grate assembly structure and multiple fire grate 10 arranged side by side within the fire grate assembly structure. The fire grate assembly structure comprises a distribution plate 1 and two brackets 2, one connected to each end of the distribution plate 1 in the front-to-back direction. Multiple fire grate 10 arranged side by side in the left-to-right direction are mounted between the two brackets 2. The distribution plate 1 is provided with ventilation holes to ensure that air flows evenly to the fire grate 10 after passing through the ventilation holes, achieving uniform combustion in the burner.

[0035] During assembly of existing burners, the front and rear brackets are connected by a retaining spring. To reduce the risk of air flowing directly from the sides of the burner without passing through the distribution plate and participating in the combustion reaction, which could lead to incomplete combustion, a windshield is installed on the side of the combustion chamber housing. The windshield is screwed to the combustion chamber housing. The need to install the retaining spring and secure the windshield to the side of the combustion chamber housing during burner assembly results in a large number of assembly parts in the combustion system, increasing the complexity of the assembly process and reducing the efficiency of the combustion system.

[0036] To solve the above problems, Figure 1 and Figure 2 As shown, this embodiment also proposes a burner, which also includes two windshields 3, which are respectively arranged at the two ends of the distribution plate 1 in the left-right direction; the two ends of each windshield 3 in the front-back direction are respectively engaged with the corresponding brackets 2 so that the two brackets 2 clamp the two ends of the fire bar 10 in the front-back direction. When the burner is assembled, the fire bar 10 is placed on the distribution plate 1 and located between the two brackets 2. The windshield 3 and the two brackets 2 are engaged with each other to prevent the two brackets 2 from detaching, so that the two ends of the fire bar 10 are clamped between the two brackets 2 and are not easy to detach, thereby achieving the fixed installation of the fire bar 10; on the one hand, the fixed installation of each fire bar 10 of the burner can be completed without a retaining spring, and on the other hand, the windshields 3 are directly arranged at the two ends of the distribution plate 2 in the left-right direction, without the need to fix the windshield 3 to the combustion chamber shell with screws, thereby saving installation parts, simplifying the assembly operation, and improving the assembly efficiency of the combustion system. At the same time, the windshield 3 and the two brackets 2 are assembled by buckling, which improves the assembly strength of the windshield 3 and the bracket 2, thereby improving the stability and reliability of the burner.

[0037] Optionally, the two brackets 2 and the distribution plate 1 may be connected by integral die-casting.

[0038] like Figure 2 and Figure 3As shown, the windshield 3 includes a vertical plate 311 and a horizontal plate 312. The two ends of the vertical plate 311 along the front-to-back direction are respectively engaged with the corresponding bracket 2. The bottom end of the vertical plate 311 is connected to the distribution plate 1, and the top end of the vertical plate 311 is provided with a horizontal plate 312 extending in the direction away from the distribution plate 1. The vertical plate 311 extends in the up-down direction, so that a rectifying channel is formed between the vertical plate 311 and the adjacent fire bars 10, ensuring the combustion effect of the fire bars 10 at the left and right edge positions. At the same time, the vertical plate 311 and the horizontal plate 312 can prevent air from entering between the fire bars 10 from the left and right sides of the burner, so as to ensure that most of the air flows evenly to each fire bar 10 after passing through the distribution plate 1, thereby achieving uniform combustion of the burner.

[0039] It should be noted that the distribution plate 1 and the windshield 3 of this embodiment are connected as one piece through integral die-casting, so that the distribution plate 1, the left and right windshields 3, and the front and rear brackets 2 form an integral structure, which reduces the cost of the burner and improves the assembly efficiency of the burner. Specifically, the outer edges of the front and rear sides of the distribution plate 1 are respectively bent upward to form the front and rear brackets 2, and the outer edges of the left and right sides of the distribution plate 1 are respectively bent upward to form the left and right windshields 3. After the multiple fire bars 10 arranged side by side are installed on the two brackets 2, the front and rear ends of the left windshield 3 are respectively snap-fitted with the left ends of the two brackets 2, and the front and rear ends of the right windshield 3 are respectively snap-fitted with the right ends of the two brackets 2 to complete the assembly operation of the burner.

[0040] Specifically, the windshield 3 includes a main body plate 31. A locking plate 32 or a locking hole 21 is provided at each end of the main body plate 31 along the front-to-back direction. A locking plate 32 or a locking hole 21 is provided at each end of the bracket 2 along the left-to-right direction. The locking plate 32 at least partially passes through the corresponding locking hole 21 and interlocks with the main body plate 31 or the bracket 2 where the locking hole 21 is located. In this embodiment, the main body plate 31 is provided with a locking plate 32 at both ends along the front-to-back direction, and the bracket 2 is provided with a locking hole 21 at both ends along the left-to-right direction. The interlocking engagement of the locking plates 32 with the locking holes 21 allows the left side of the front and rear brackets 2 to be interlocked and secured by one windshield 3, while the right side of the front and rear brackets 2 is interlocked and secured by the other windshield 3, thereby improving the structural strength of the windshield 3 and the front and rear brackets 2. In other embodiments, the main body plate 31 is provided with a locking hole 21 at both ends along the front-to-back direction, and the bracket 2 is provided with a locking plate 32 at both ends along the left-to-right direction.

[0041] like Figure 3As shown, the locking plate 32 includes a connecting portion 321 and a paddle 322. The connecting portion 321 is connected to the main plate 31 or the bracket 2, and the paddle 322 is movably connected to the connecting portion 321. When the connecting portion 321 is inserted into the corresponding locking hole 21, the paddle 322 passes through the locking hole 21 and bends outside the locking hole 21, thereby securing the bracket 2 to the main plate 31. Specifically, the main plate 31 is provided with locking plates 32 extending outward from both ends along the front-to-back direction. The connecting portion 321 of the locking plate 32 is connected to the main plate 31. The bent paddles 322 and the main plate 31 form a slot structure that secures the bracket 2. This allows the two paddles 322 of each windshield 3 to jointly clamp the two brackets 2 in the front-to-back direction, preventing the locking plates 32 from slipping out of the corresponding locking holes 21 and ensuring the strength and stability of the connection between the bracket 2 and the windshield 3. In other embodiments, locking holes 21 are respectively extended outward from both ends of the main body plate 31 along the front-to-back direction, and the connecting portion 321 of the locking plate 32 is connected to the bracket 2 .

[0042] Furthermore, if Figure 3 As shown, the paddle 322 has a beveled pressing surface 3220. The beveled pressing surface 3220 on the end of the paddle 322 near the connecting portion 321 is located within the keyhole 21. When the paddle 322 is bent outside the keyhole 21, the main plate 31 or the bracket 2 where the keyhole 21 is located abuts the beveled pressing surface 3220. Because a portion of the beveled pressing surface 3220 is located within the keyhole 21, when the paddle 322 is bent outside the keyhole 21, the beveled pressing surface 3220 can press against the surface of the bracket 2, completing the clamping between the bracket 2 and the main plate 31. In other embodiments, the main plate 31 or the bracket 2 where the keyhole 21 is located is provided with a beveled pressing surface 3220, and when the paddle 322 is bent outside the keyhole 21, it abuts the beveled pressing surface 3220. Specifically, in this embodiment, the side of the paddle 322 facing the main plate 31 is the beveled pressing surface 3220, and the beveled pressing surface 3220 is inclined upward from bottom to top, away from the main plate 31. As the bending angle of the paddle 322 gradually increases, the contact area between the extrusion slope 3220 and the bracket 2 becomes larger and larger, thereby improving the clamping strength of the bracket 2.

[0043] It is important to note that the width of the paddle 322 and the main plate 31 in the front-to-back direction is approximately equal to or slightly less than the thickness of the bracket 2. This allows the paddle 322 to compress the surface of the bracket 2 when bent, causing a slight concave deformation on the surface of the bracket 2. This allows the paddle 322 to secure the bracket 2 and prevent it from shaking in the front-to-back direction. When the locking plate 32 of this embodiment is not bent, it is a flat plate, with the paddle 322 and the connecting portion 321 coplanar. The greater the contact area between the bracket 2 and the extrusion slope 3220, the greater the concave deformation of the bracket 2 surface, thereby increasing the clamping force between the windshield 3 and the bracket 2. When the bending angle is 90°, that is, the paddle 322 is perpendicular to the connecting portion 321, the contact area between the bracket 2 and the extrusion slope 3220 is maximized.

[0044] Furthermore, if Figure 4 and Figure 5 As shown, the inclination angle α of the extrusion bevel 3220 is 1° to 5°. The inclination angle α can be 1°, 2°, 3°, 4°, or 5°, etc. When the inclination angle α is too small, the distance between the extrusion bevel 3220 and the main plate 31 is small, which can easily cause the paddle 322 to interfere with the bracket 2 when bending, increasing the difficulty of bending the paddle 322. When the inclination angle α is too large, the distance between the extrusion bevel 3220 and the main plate 31 is large, reducing the extrusion effect of the extrusion bevel 3220 on the bracket 2, making it difficult to clamp the bracket 2.

[0045] like Figure 3 As shown, the connecting portion 321 is connected to the main plate 31. At least one stopper 22 is provided at each end of the bracket 2 in the left and right directions. When the paddle 322 bends to the outside of the lock hole 21, at least one stopper 22 is positioned between the lock hole 21 and the paddle 322 to prevent the paddle 322 from bending in the opposite direction. Specifically, the stopper 22 is formed by protruding from the inside to the outside of the bracket 2, forming a convex structure. When the paddle 322 bends, it slides over the convex structure and, once bent into position, abuts against the edge of the convex structure, thus limiting the paddle 322 and preventing it from bending in the opposite direction and returning to its original position.

[0046] Specifically, the bracket 2 of this embodiment is provided with two stoppers 22 at each end along the left-right direction. When the paddle 322 is bent to the outside of the lock hole 21, it is engaged between the two corresponding stoppers 22. The two stoppers 22 are provided at intervals, thereby securing the paddle 322 in place, preventing the paddle 322 from bending in the opposite direction or excessively, and improving the bending accuracy of the paddle 322.

[0047] The above embodiments merely illustrate the basic principles and features of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications are possible without departing from the spirit and scope of the present invention. Such changes and modifications are within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A burner, characterized in that The invention comprises a distribution plate (1), two brackets (2) and two wind shields (3), wherein the two brackets (2) are connected to the two ends of the distribution plate (1) along the front-back direction, and the two wind shields (3) are arranged at the two ends of the distribution plate (1) along the left-right direction; the two ends of each wind shield (3) along the front-back direction are respectively engaged with the corresponding bracket (2) so that the two brackets (2) clamp the two ends of the fire bar (10) along the front-back direction.

2. The burner according to claim 1, characterized in that The windshield (3) includes a main body plate (31), and the main body plate (31) is provided with one of a locking plate (32) and a locking hole (21) at both ends along the front-back direction. The bracket (2) is provided with the other of the locking plate (32) and the locking hole (21) at both ends along the left-right direction. The locking plate (32) at least partially passes through the corresponding locking hole (21) and is engaged with the main body plate (31) or the bracket (2) where the locking hole (21) is located.

3. The burner according to claim 2, characterized in that The locking plate (32) includes a connecting portion (321) and a paddle (322), wherein the connecting portion (321) is connected to the main plate (31) or the bracket (2), and the paddle (322) is movably connected to the connecting portion (321). When the connecting portion (321) is inserted into the corresponding locking hole (21), the paddle (322) passes through the locking hole (21) and bends to the outside of the locking hole (21), so that the bracket (2) and the main plate (31) are buckled and matched.

4. The burner according to claim 3, characterized in that The paddle (322) has an extrusion bevel (3220), and the extrusion bevel (3220) at one end of the paddle (322) close to the connecting portion (321) is located in the lock hole (21). When the paddle (322) is bent to the outside of the lock hole (21), the main body plate (31) or the bracket (2) where the lock hole (21) is located abuts against the extrusion bevel (3220); Alternatively, the main body plate (31) or the bracket (2) where the lock hole (21) is located is provided with the extrusion inclined surface (3220), and the paddle (322) abuts against the extrusion inclined surface (3220) when bent to the outside of the lock hole (21).

5. The burner according to claim 4, characterized in that The inclination angle of the extrusion slope (3220) is 1° to 5°.

6. The burner according to claim 3, characterized in that The connecting portion (321) is connected to the main body plate (31), and at least one limiting portion (22) is provided at both ends of the bracket (2) along the left and right directions. When the paddle (322) is bent to the outside of the lock hole (21), at least one limiting portion (22) is located between the lock hole (21) and the paddle (322) to prevent the paddle (322) from bending in the opposite direction.

7. The burner according to claim 6, characterized in that Two limiting portions (22) are provided at intervals at both ends of the bracket (2) along the left-right direction, and the paddle (322) is engaged between the corresponding two limiting portions (22) when bent to the outside of the lock hole (21).

8. The burner according to any one of claims 1 to 7, characterized in that: The windshield (3) comprises a vertical plate (311) and a horizontal plate (312), and the two ends of the vertical plate (311) along the front-back direction are respectively engaged with the corresponding bracket (2); the bottom end of the vertical plate (311) is connected to the distribution plate (1), and the top end of the vertical plate (311) is provided with the horizontal plate (312) extending in a direction away from the distribution plate (1).

9. The burner according to any one of claims 1 to 7, characterized in that The distribution plate (1) and the wind shield (3) are connected as one body.

10. Gas water heater, characterized in that A burner comprising the burner according to any one of claims 1 to 9.

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