A kind of upper air inlet stove head

Abstract

A top air inlet stove head comprises a stove plate, a vent seat arranged on the stove plate and used to install a ignition distributor, and an ejection channel arranged on the stove plate and connected to the vent seat; the stove plate is provided with an air inlet cavity located outside the vent seat and penetrating the upper part of the stove plate, and the input end of the ejection channel is connected to the air inlet cavity; the stove plate is provided with a detachable protective cover covering the air inlet cavity, and the detachable protective cover is provided with an upper air inlet hole connected to the air inlet cavity. The detachable protective cover of the present invention is easy to disassemble and assemble, and after removing the detachable protective cover, the air inlet cavity and the input end of the ejection channel can be easily cleaned and maintained.

Description

Technical Field

[0001] The invention relates to the field of household gas appliances, in particular to an upper air inlet burner head. Background Art

[0002] Chinese patent document No. CN201811069495.8 discloses an upper air inlet stove burner, including a burner, an ignition needle and an induction needle; the characteristic is that the burner includes a burner seat and a burner cover; an inner ring fire outlet and one or more outer ring fire outlets are respectively provided on the burner seat, the burner cover is covered on the burner seat and cooperates with each other, an air intake channel is provided on the burner cover, the air intake channel is communicated with the inner ring fire gas inlet of the burner seat, a first upward protrusion is provided on the burner cover, the gap between the first upward protrusion and the burner seat forms a first upper air inlet, the first upper air inlet is communicated with the outer ring fire gas inlet of the burner seat; the ignition needle and the induction needle are respectively installed on the burner seat.

[0003] The problem is that the burner head cover it uses is large in size, basically completely covering the burner head seat, making it inconvenient to disassemble and assemble, and it has an air intake channel and a first upper air intake port, and cannot completely prevent dust and other debris from entering the inner ring fire under the air intake port and the outer ring fire under the air intake port. The inconvenient disassembly and assembly of the burner head cover makes it difficult to clean and maintain the inner ring fire under the air intake port and the outer ring fire under the air intake port, which has certain limitations.

[0004] Therefore, further improvements are needed. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide an upper air inlet furnace head, whose detachable protective cover is easy to disassemble and assemble. After removing the detachable protective cover, the air inlet cavity and the input end of the injection channel can be easily cleaned and maintained.

[0006] The object of the present invention is achieved in that:

[0007] An upper air inlet stove head comprises a stove plate, a vent seat arranged on the stove plate and used to install a fire distributor, and an injection channel arranged on the stove plate and connected to the vent seat;

[0008] The furnace plate is provided with an air inlet cavity located outside the ventilation seat and penetrating the upper part of the furnace plate, and the input end of the ejection channel is connected with the air inlet cavity;

[0009] The furnace plate is provided with a detachable protective cover covering the air inlet cavity, and the detachable protective cover is provided with an upper air inlet hole communicating with the air inlet cavity.

[0010] A detachable bracket is provided on the ventilation seat;

[0011] The detachable bracket is provided with a first mounting hole and a second mounting hole for mounting an ignition needle and a thermocouple respectively.

[0012] An insect-proof net is arranged between the furnace plate and the detachable protective cover.

[0013] The upper surface of the detachable protective cover is provided with a first boss, a second boss is provided on the first boss, a third boss is provided on the second boss, an upper air inlet is provided on the third boss and passes through the upper and lower parts of the third boss, and the third boss is in an arc strip shape.

[0014] The ejection channel includes a central ejection channel and a double-tube ejection structure;

[0015] The double-tube ejection structure comprises a first outer ejection channel and a second outer ejection channel symmetrically arranged on both sides of the central ejection channel;

[0016] The input ends of the central ejection channel, the first outer ejection channel and the second outer ejection channel are all located in the air inlet cavity;

[0017] The ventilation seat is provided with a central ventilation pipe and an outer ventilation pipe, the central ejection channel is connected with the central ventilation pipe, and the first outer ejection channel and the second outer ejection channel are both connected with the outer ventilation pipe.

[0018] The front part of the air inlet cavity is provided with a front shell for gas input, and a detachable protective cover is provided on the front shell;

[0019] The front surface of the front shell is provided with a central input port opposite to the input end of the central ejection channel, a first input port opposite to the input end of the first outer ejection channel, and a second input port opposite to the input end of the second outer ejection channel.

[0020] A transverse pipe connecting the first input port input end and the second input port input end is arranged on the front surface of the front shell, and a main input port is arranged on the transverse pipe;

[0021] The central input port is located at the upper part or the lower part of the transverse pipe;

[0022] The output ends of the central input port, the first input port and the second input port are all provided with nozzles.

[0023] The furnace plate includes an upper shell and a lower shell arranged at the lower part of the upper shell;

[0024] The front shell is arranged at the front parts of the upper shell and the lower shell, and the vent seat is arranged on the upper shell.

[0025] The upper shell is provided with a first transverse plate extending upward and first side plates extending forward from the left and right sides of the first transverse plate, respectively. The first transverse plate is located in front of the vent seat, and a gap is left between the first transverse plate and the front edge of the upper shell;

[0026] The front edge of the lower shell is provided with a second transverse plate extending downward;

[0027] The front shell includes a third transverse plate, a bottom plate extending backward from the bottom of the third transverse plate, and second side plates extending backward from the left and right sides of the third transverse plate and connected to the bottom plate;

[0028] The second side plate is connected to the corresponding first side plate, the second side plate is connected to the left and right sides of the front surface of the second transverse plate, and the bottom plate is connected to the bottom of the front surface of the second transverse plate;

[0029] The detachable protective cover is arranged on the first transverse plate, the first side plate, the third transverse plate and the second side plate.

[0030] The input ends of the central ejection channel, the first outer ejection channel and the second outer ejection channel are all located in front of the first transverse plate;

[0031] The central ejection channel is arranged on the upper shell;

[0032] The first external ejection channel and the second external ejection channel both include an upper recessed portion provided on the upper shell and a lower recessed portion provided on the lower shell.

[0033] The beneficial effects of the present invention are as follows:

[0034] 1. The detachable protective cover is easy to disassemble and assemble. After removing the detachable protective cover, the air inlet cavity and the input end of the ejection channel can be easily cleaned and maintained. Similarly, when the nozzle is blocked or fails, only the detachable protective cover needs to be removed to clean and maintain the nozzle or to disassemble and replace it. The maintenance is convenient without disassembling the upper air inlet burner as a whole.

[0035] 2. The detachable bracket is easy to disassemble and assemble. When the ignition needle or thermocouple fails, you only need to remove the detachable bracket to check and replace the ignition needle or thermocouple without disassembling the upper air inlet furnace head as a whole.

[0036] 3. A detachable protective cover, a first transverse plate, a first side plate, a second transverse plate, an upper shell and a lower shell are used to wrap the nozzle and the input end of the injection channel, leaving only the upper air inlet hole connected to the outside world. At the same time, an insect-proof net is set to effectively prevent insects from affecting the nozzle and the input end of the injection channel, which is beneficial to protecting the nozzle, the input end of the injection channel and the area between them. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0038] Figure 2It is a schematic diagram of the structure of hiding a detachable protective cover and a detachable bracket according to an embodiment of the present invention.

[0039] Figure 3 FIG. 1 is an exploded view of an embodiment of the present invention.

[0040] Figure 4 FIG. 1 is a schematic structural diagram of a detachable protective cover according to an embodiment of the present invention.

[0041] Figure 5 It is a schematic structural diagram of a front shell according to an embodiment of the present invention.

[0042] Figure 6 It is a schematic structural diagram of an upper shell according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0044] See also Figure 1-Figure 6 The upper air inlet burner head comprises a furnace plate 1, a vent seat 2 arranged on the furnace plate 1 and used for installing a fire distributor, and an injection channel arranged on the furnace plate 1 and connected to the vent seat 2;

[0045] The furnace plate 1 is provided with an air inlet cavity 3 located outside the ventilation seat 2 and penetrating the upper part of the furnace plate 1, and the input end of the injection channel is connected with the air inlet cavity 3;

[0046] The furnace plate 1 is provided with a detachable protective cover 4 covering the air inlet cavity 3 , and the detachable protective cover 4 is provided with an upper air inlet hole 44 communicating with the air inlet cavity 3 .

[0047] The detachable protective cover 4 only covers the air inlet cavity 3, has a small size, and does not completely cover the furnace plate 1. The detachable protective cover 4 is easy to assemble and disassemble. After removing the detachable protective cover 4, the air inlet cavity 3 and the input end of the injection channel can be easily cleaned and maintained.

[0048] Fixed blocks 71 are provided on the left and right side walls inside the air intake cavity 3 corresponding to the removable protective cover 4. The removable protective cover 4 and the fixed block 71 are fixedly connected by a first fastening screw so that the removable protective cover 4 is fixedly installed on the air intake cavity 3. The first fastening screw passes through the removable protective cover 4 and the fixed block 71 in sequence. This structural connection method facilitates the disassembly and assembly of the removable protective cover 4.

[0049] The bottom of the fixing block 71 is connected to the bottom surface of the air inlet cavity 3 .

[0050] Specifically, the air inlet cavity 3 is located in front of the ventilation seat 2 .

[0051] Furthermore, a detachable bracket 6 is provided on the ventilation seat 2;

[0052] The detachable bracket 6 is provided with a first mounting hole 61 and a second mounting hole 62 for mounting an ignition needle and a thermocouple respectively.

[0053] The detachable bracket 6 is easy to assemble and disassemble. When the ignition needle or the thermocouple fails, the detachable bracket 6 can be removed to check and replace the ignition needle or the thermocouple without disassembling the upper air inlet burner as a whole.

[0054] Furthermore, an insect-proof net 7 is provided between the stove plate 1 and the detachable protective cover 4 .

[0055] The anti-insect net 7 is provided to prevent spiders, cockroaches and other insects from entering the air inlet cavity 3 and the ejection channel.

[0056] Furthermore, a first boss 41 is provided on the upper surface of the detachable protective cover 4, a second boss 42 is provided on the first boss 41, a third boss 43 is provided on the second boss 42, an upper air inlet hole 44 is provided on the third boss 43 and passes through the upper and lower parts of the third boss 43, and the third boss 43 is in an arc-shaped strip shape.

[0057] The left and right side surfaces and the front surface of the first boss 41 are inclined surfaces, and the use of the inclined surfaces improves the overall strength of the first boss 41. The rear surface of the first boss 41 is flush with the rear surface of the detachable protective cover 4, and the left and right side surfaces of the first boss 41 are both provided with avoidance recesses 72 for avoiding the first fastening screws.

[0058] An arc-shaped recessed portion 78 opposite to the third boss 43 is disposed on the rear surface of the first boss 41 , and the second boss 42 is in an arc-shaped strip shape.

[0059] When the upper air inlet stove head is in use, the fire divider is arranged on the detachable bracket 6 and the detachable protective cover 4, the upper surface of the second boss 42 is parallel to the upper surface of the detachable bracket 6, and the bottom surface of the fire divider is placed on the upper surface of the second boss 42 and the upper surface of the detachable bracket 6, that is, the detachable protective cover 4 also needs to support the fire divider. The fire divider is heavy. By arranging multiple bosses (i.e., the first boss 41, the second boss 42 and the third boss 43) on the detachable protective cover 4, it is beneficial to improve the overall strength of the detachable protective cover 4 and ensure that the detachable protective cover 4 can stably support the fire divider.

[0060] The fire divider has a ventilation gap opposite to the third boss 43, and the ventilation gap is also in an arc strip shape. When the fire divider is placed on the upper air inlet burner head, the bottom of the fire divider is placed on the second boss 42, the third boss 43 extends into the ventilation gap, and the upper air inlet hole 44 is not blocked.

[0061] Furthermore, the ejection channel includes a central ejection channel 8 and a double-tube ejection structure;

[0062] The double-tube ejection structure comprises a first outer ejection channel 9 and a second outer ejection channel 10 symmetrically arranged on both sides of a central ejection channel 8;

[0063] The first external ejection channel 9 and the second external ejection channel 10 are both hook-shaped, and both include a straight section extending in the front-to-back direction and an arc section connected to the rear end of the straight section. The arc section is located at the rear of the ventilation seat 2, and the end of the arc section is connected to the ventilation seat 2.

[0064] The input ends of the central ejection channel 8, the first outer ejection channel 9 and the second outer ejection channel 10 are all located in the air inlet cavity 3;

[0065] The ventilation seat 2 is provided with a central ventilation pipe 21 and an outer ventilation pipe 22 , the central injection channel 8 is connected to the central ventilation pipe 21 , and the first outer injection channel 9 and the second outer injection channel 10 are both connected to the outer ventilation pipe 22 .

[0066] The double-tube ejection structure is a symmetrical structure, which is more stable. In view of the small cross-sectional area of ​​the input end of the ejection channel, the use of two ejection channels (i.e., the first outer ejection channel 9 and the second outer ejection channel 10) is conducive to diverting the input gas and achieving a larger gas input amount.

[0067] The central ventilation pipe 21 is located inside the outer ventilation pipe 22 , and the central ventilation pipe 21 and the outer ventilation pipe 22 are connected via a plurality of ribs 73 uniformly distributed along the circumferential direction.

[0068] The detachable bracket 6 is provided with a through hole 74 , and the detachable bracket 6 is sleeved on the outer ventilation pipe 22 through the through hole 74 and placed on the ventilation seat 2 . An annular portion 79 extending upward is provided on the edge of the through hole 74 .

[0069] A plurality of fixing columns 75 are evenly distributed along the circumference of the outer surface of the vent seat 2, and a fixing hole 76 opposite to the fixing column 75 is provided on the detachable bracket 6. The fixing hole 75 and the fixing column 76 are connected by a second fastening screw. This structure facilitates the disassembly and assembly of the detachable bracket 6.

[0070] The detachable bracket 6 is provided with a plurality of mounting holes 77 evenly distributed along the circumference and used for mounting the fire distributor.

[0071] The fixing holes 76 , the mounting holes 77 , the first mounting holes 61 and the second mounting holes 62 are arranged in a staggered manner.

[0072] The first mounting hole 61 is located at the right rear portion of the detachable bracket 6 , and the second mounting hole 62 is located at the left rear portion of the detachable bracket 6 .

[0073] Furthermore, a front shell 5 for gas input is provided at the front of the air inlet cavity 3, and a detachable protective cover 4 is provided on the front shell 5;

[0074] The front surface of the front shell 5 is provided with a central input port 51 opposite to the input end of the central injection channel 8, a first input port 52 opposite to the input end of the first outer injection channel 9 and a second input port 53 opposite to the input end of the second outer injection channel 10.

[0075] The gas is input from the central input port 51, the first input port 52 and the second input port 53 respectively, and is input into the central ejection channel 8, the first outer ejection channel 9 and the second outer ejection channel 10 respectively, a negative pressure is formed in the air intake cavity 3, and the air enters the air intake cavity 3 from the upper air inlet hole 44 and enters the central ejection channel 8, the first outer ejection channel 9 and the second outer ejection channel 10 together with the gas, so that the gas and air begin to mix at the input end of the ejection channel to ensure the final combustion effect.

[0076] Furthermore, a transverse pipe 54 is provided on the front surface of the front shell 5 to connect the input end of the first input port 52 and the input end of the second input port 53, and a main input port 55 is provided on the transverse pipe 54;

[0077] The central input port 51 is located at the upper part or the lower part of the transverse pipe 54;

[0078] In this embodiment, the central input port 51 is located at the upper portion of the transverse pipe 54 , and the main input port 55 is located at the right side of the central input port 51 .

[0079] The output ends of the central input port 51 , the first input port 52 and the second input port 53 are all provided with nozzles 56 , and the nozzles 56 are located in the air intake cavity 3 .

[0080] When the nozzle 56 is clogged or fails, the nozzle 56 can be cleaned, maintained, or disassembled and replaced only by removing the detachable protective cover 4, which is convenient for maintenance and does not require the entire upper air inlet furnace head to be disassembled.

[0081] Furthermore, the furnace plate 1 comprises an upper shell 11 and a lower shell 12 arranged at the lower part of the upper shell 11;

[0082] The front shell 5 is arranged at the front of the upper shell 11 and the lower shell 12 , and the vent seat 2 is arranged on the upper shell 11 .

[0083] Furthermore, the upper shell 11 is provided with a first transverse plate 13 extending upward and first side plates 14 extending forward from the left and right sides of the first transverse plate 13, respectively. The first transverse plate 13 is located in front of the vent seat 2, and a gap is left between the first transverse plate 13 and the front edge of the upper shell 11;

[0084] The fixing block 71 is connected to the inner wall of the corresponding first side plate 14 .

[0085] The front edge of the lower shell 12 is provided with a second transverse plate 15 extending downward;

[0086] The front shell 5 includes a third transverse plate 57, a bottom plate 58 extending backward from the bottom of the third transverse plate 57, and second side plates 59 extending backward from the left and right sides of the third transverse plate 57 and connected to the bottom plate 58;

[0087] The central input port 51 , the first input port 52 and the second input port 53 are all disposed on the third transverse plate 57 .

[0088] The third transverse plate 57 is fastened to the fixing block 71 by a third fastening screw.

[0089] The second side plate 59 is connected to the corresponding first side plate 14, the second side plate 59 is connected to the left and right sides of the front surface of the second transverse plate 15, and the bottom plate 58 is connected to the bottom of the front surface of the second transverse plate 15;

[0090] The detachable protective cover 4 is disposed on the first transverse plate 13 , the first side plate 14 , the third transverse plate 57 and the second side plate 59 .

[0091] The insect-proof net 7 is pressed tightly between the upper surfaces of the first transverse plate 13 , the first side plate 14 , the third transverse plate 57 , the second side plate 59 and the bottom surface of the detachable protective cover 4 .

[0092] In the conventional technology, the outer area between the nozzle 56 and the input end of the ejection channel is a completely open structure. In the present upper air inlet burner, the nozzle 56 and the input end of the ejection channel are wrapped inside by a detachable protective cover 4, a first transverse plate 13, a first side plate 14, a second transverse plate 15, an upper shell 11 and a lower shell 12, leaving only the upper air inlet 44 connected to the outside. At the same time, by setting an insect-proof net 7, the influence of insects on the nozzle 56 and the input end of the ejection channel is effectively avoided, which is conducive to protecting the nozzle 56 and the input end of the ejection channel and the area between them.

[0093] Furthermore, the input ends of the central ejection channel 8, the first outer ejection channel 9 and the second outer ejection channel 10 are all located in front of the first transverse plate 13;

[0094] The input ends of the central ejection channel 8, the first outer ejection channel 9 and the second outer ejection channel 10 are all trumpet-shaped.

[0095] The central ejection channel 8 is arranged on the upper housing 11;

[0096] The first external ejection channel 9 and the second external ejection channel 10 both include an upper recess 16 disposed on the upper shell 11 and a lower recess 17 disposed on the lower shell 12 .

[0097] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A top air inlet furnace head, characterized in that: It comprises a furnace plate (1), a vent seat (2) arranged on the furnace plate (1) and used for mounting a ignition distributor, and an injection channel arranged on the furnace plate (1) and connected to the vent seat (2); The furnace plate (1) is provided with an air intake cavity (3) located outside the ventilation seat (2) and penetrating the upper part of the furnace plate (1), and the input end of the injection channel is in communication with the air intake cavity (3); The furnace plate (1) is provided with a detachable protective cover (4) covering the air inlet cavity (3); the detachable protective cover (4) is provided with an upper air inlet hole (44) communicating with the air inlet cavity (3); The upper surface of the detachable protective cover (4) is provided with a first boss (41), a second boss (42) is provided on the first boss (41), a third boss (43) is provided on the second boss (42), and an upper air inlet hole (44) is provided on the third boss (43) and passes through the upper part and the lower part of the third boss (43); The furnace plate (1) comprises an upper shell (11) and a lower shell (12) arranged at the lower part of the upper shell (11); The vent seat (2) is arranged on the upper shell (11).

2. The upper air inlet furnace head according to claim 1, characterized in that: The ventilation seat (2) is provided with a detachable bracket (6); The detachable bracket (6) is provided with a first mounting hole (61) and a second mounting hole (62) for mounting an ignition needle and a thermocouple respectively.

3. The upper air inlet furnace head according to claim 1, characterized in that: An insect-proof net (7) is provided between the furnace plate (1) and the detachable protective cover (4).

4. The upper air inlet furnace head according to claim 1, characterized in that: The third boss (43) is in the shape of an arc strip.

5. The upper air inlet furnace head according to any one of claims 1 to 4, characterized in that: The ejection channel comprises a central ejection channel (8) and a double-tube ejection structure; The double-tube ejection structure comprises a first outer ejection channel (9) and a second outer ejection channel (10) which are symmetrically arranged on both sides of the central ejection channel (8); The input ends of the central ejection channel (8), the first outer ejection channel (9) and the second outer ejection channel (10) are all located in the air inlet cavity (3); The ventilation seat (2) is provided with a central ventilation pipe (21) and an external ventilation pipe (22); the central ejection channel (8) is in communication with the central ventilation pipe (21); and the first external ejection channel (9) and the second external ejection channel (10) are both in communication with the external ventilation pipe (22).

6. The upper air inlet furnace head according to claim 5, characterized in that: A front shell (5) for gas input is arranged at the front of the air inlet cavity (3), and a detachable protective cover (4) is arranged on the front shell (5); The front surface of the front shell (5) is provided with a central input port (51) opposite to the input end of the central ejection channel (8), a first input port (52) opposite to the input end of the first outer ejection channel (9), and a second input port (53) opposite to the input end of the second outer ejection channel (10).

7. The upper air inlet furnace head according to claim 6, characterized in that: A transverse pipe (54) communicating with an input end of the first input port (52) and an input end of the second input port (53) is provided on the front surface of the front shell (5), and a main input port (55) is provided on the transverse pipe (54); The central input port (51) is located at the upper part or the lower part of the transverse pipe (54); The output ends of the central input port (51), the first input port (52) and the second input port (53) are all provided with nozzles (56).

8. The upper air inlet furnace head according to claim 6, characterized in that: The front shell (5) is arranged at the front of the upper shell (11) and the lower shell (12).

9. The upper air inlet furnace head according to claim 8, characterized in that: The upper shell (11) is provided with a first transverse plate (13) extending upward and first side plates (14) extending forward from left and right sides of the first transverse plate (13), respectively. The first transverse plate (13) is located in front of the vent seat (2), and a gap is left between the first transverse plate (13) and the front edge of the upper shell (11); A second transverse plate (15) extending downwards is provided at the front edge of the lower shell (12); The front shell (5) comprises a third transverse plate (57), a bottom plate (58) extending backward from the bottom of the third transverse plate (57), and second side plates (59) extending backward from the left and right sides of the third transverse plate (57) and connected to the bottom plate (58); The second side plate (59) is connected to the corresponding first side plate (14), the second side plate (59) is connected to the left and right sides of the front surface of the second transverse plate (15), and the bottom plate (58) is connected to the bottom of the front surface of the second transverse plate (15); The detachable protective cover (4) is arranged on the first transverse plate (13), the first side plate (14), the third transverse plate (57) and the second side plate (59).

10. The upper air inlet furnace head according to claim 9, characterized in that: The input ends of the central ejection channel (8), the first outer ejection channel (9) and the second outer ejection channel (10) are all located in front of the first transverse plate (13); The central ejection channel (8) is arranged on the upper shell (11); The first external ejection channel (9) and the second external ejection channel (10) both comprise an upper recess (16) provided on the upper shell (11) and a lower recess (17) provided on the lower shell (12).

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