Burner and hob

Abstract

The utility model provides a kind of burner and stove, it is related to stove technical field.Burner includes inner ring fire cover, gas mixing chamber and anti-loosening part, and first internal thread is equipped on inner ring fire cover, and through-hole is equipped on gas mixing chamber.Anti-loosening part includes the connecting portion, intermediate portion and head portion connected in turn from top to bottom, and outer thread matched with first internal thread is equipped on connecting portion.Anti-loosening part can pass through through-hole, and connecting portion is connected to first internal thread, intermediate portion is matched with through-hole, and clearance is equipped on the outer circumferential side of intermediate portion and the inner circumferential side of through-hole, head portion is attached with gas mixing chamber, and there is looseness gap between through-hole and first internal thread, so that the looseness range of inner ring fire cover is controllable, when vibration, drop causes anti-loosening part to go down, the outer thread of connecting portion cannot be actively entered into the through-hole of gas mixing chamber, so that anti-loosening part is not easy to fall off, and inner ring fire cover is not easy to separate from gas mixing chamber.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to a burner and stove. Background Technology

[0002] Currently, there is a risk that the inner ring burner cap of household gas stoves may detach during transportation due to vibration and drops. Users may also encounter issues with properly repositioning the inner ring burner cap during cleaning. To address these issues, manufacturers generally employ a technical solution that secures the inner ring burner cap to the mixing chamber. This can be achieved through tight-fitting, threaded, or screw-based fixing.

[0003] If a tight fit is used, the inner ring burner cap and the mixing chamber are made of two different materials. Due to their different coefficients of thermal expansion, long-term use under thermal shock after a tight fit can lead to deformation and pose a risk of flame leakage. If a threaded fit is used, there is a risk of thread jamming. Since the inner ring burner cap needs to ignite and maintain the flame for the thermocouple and ignition needle, and the inner ring burner cap has directional requirements, a threaded fit risks misalignment. If a screw is used, a screw fixing position must be set in the air passage of the mixing chamber, which will reduce the passage area of ​​the air passage, thereby increasing airflow resistance and affecting combustion efficiency. Because the inner ring burner cap is tightly attached to the mixing chamber when fixed with screws in the current technology, vibration and drops during transportation can easily cause the screws to loosen, making the inner ring burner cap prone to detachment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect that the inner ring burner cap is tightly attached to the mixing chamber when the burner is fixed with screws, which is prone to vibration and falling during transportation and use, causing the inner ring burner cap to loosen. The present invention provides a burner and stove.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a burner, which includes an inner ring flame cap, a mixing chamber, and an anti-loosening component;

[0007] The inner ring flame cap is provided with a first internal thread, and the mixing chamber is provided with a through hole;

[0008] The anti-loosening component includes a connecting part, a middle part and a head connected from top to bottom, and the connecting part is provided with an external thread that matches the first internal thread;

[0009] The anti-loosening component can pass through the through hole, and the connecting part is connected to the first internal thread. The middle part is correspondingly engaged with the through hole. The outer peripheral side of the middle part and the inner peripheral side of the through hole are provided with a gap. The head is in contact with the mixing chamber. A loosening gap is provided between the through hole and the first internal thread.

[0010] In this design, the inner ring burner cap has a first internal thread, and the mixing chamber has a through hole. The anti-loosening component includes a connecting part, a middle part, and a head connected sequentially from top to bottom. The connecting part has an external thread that matches the first internal thread. The anti-loosening component can pass through the through hole, and the connecting part is connected to the first internal thread. The middle part corresponds to the through hole, and there is a gap between the outer circumference of the middle part and the inner circumference of the through hole. The head fits against the mixing chamber, thereby connecting the inner ring burner cap to the mixing chamber through the anti-loosening component, thus fixing the inner ring burner cap. By setting a loosening gap between the through hole and the first internal thread, the loosening range of the inner ring burner cap is controllable. When vibration or a drop causes the anti-loosening component to move downwards, the external thread of the connecting part cannot actively enter the through hole of the mixing chamber, thus making the anti-loosening component less likely to fall off and the inner ring burner cap less likely to detach from the mixing chamber.

[0011] Preferably, the thread length of the first internal thread is greater than the length of the external thread.

[0012] In this solution, by setting the thread length of the first internal thread to be greater than the length of the external thread, the external thread can be fully connected to the first internal thread, the anti-loosening component can be more firmly connected to the inner ring burner cap, and the connection between the inner ring burner cap and the mixing chamber is more secure, resulting in a better anti-loosening effect.

[0013] Preferably, the through hole is provided with a second internal thread, which matches the external thread.

[0014] In this design, a second internal thread is provided on the through hole, which matches the external thread. This allows the connecting part to be screwed into the second internal thread first, and then passed through the through hole to connect to the first internal thread. When the inner ring cap becomes loose, even if the external thread of the connecting part enters the through hole, it still needs to pass through the second internal thread to completely loosen, further improving the anti-loosening effect.

[0015] Preferably, the length of the middle portion is greater than the thread length of the second internal thread.

[0016] In this solution, by setting the length of the middle part to be greater than the thread length of the second internal thread, the middle part has enough length to completely pass through the through hole, and the connecting part is connected to the inner ring fire cover, and a loosening gap can be formed between the through hole and the first internal thread.

[0017] Preferably, the lower end of the first internal thread is provided with a chamfer.

[0018] In this solution, a chamfer is provided at the lower end of the first internal thread, so that when the anti-loosening component is installed, the chamfer can guide the external thread to connect to the first internal thread, so that the connection part can be smoothly screwed into the first internal thread, and the anti-loosening component can be smoothly connected to the inner ring cover.

[0019] Preferably, the head is provided with a cross groove, a straight groove, or a plum blossom groove.

[0020] In this solution, by setting a cross groove, a slotted groove, or a star-shaped groove on the head, the operator can use tools to twist the anti-loosening part for installation, making the installation more convenient.

[0021] Preferably, one of the inner ring burner cap and the mixing chamber is provided with a limiting protrusion and the other is provided with a limiting groove. The limiting protrusion is inserted into the limiting groove to limit the circumferential displacement of the inner ring burner cap and the mixing chamber.

[0022] In this design, one of the inner ring burner cap and the mixing chamber is provided with a limiting protrusion, and the other is provided with a limiting groove. The limiting protrusion is inserted into the limiting groove to restrict the circumferential displacement of the inner ring burner cap and the mixing chamber, thereby preventing the inner ring burner cap and the mixing chamber from rotating in the circumferential direction after they are engaged, avoiding the rotation that could cause the anti-loosening component to loosen, and further improving the anti-loosening effect.

[0023] Preferably, the mixing chamber includes an upper air passage, a fixing part, and a plurality of fixing ribs. The through hole is provided on the fixing part, and the two ends of the fixing rib are respectively connected to the upper air passage and the fixing part.

[0024] In this design, the through hole is located on the fixing part, which is fixed to the upper gas passage by fixing ribs, so that the gas can flow in from the space between the fixing ribs and ensure that the gas can flow smoothly in the upper gas passage.

[0025] Preferably, the mixing chamber further includes a lower air passage, and the cross-sectional area of ​​the upper air passage is larger than the cross-sectional area of ​​the lower air passage.

[0026] In this scheme, by setting the cross-sectional area of ​​the upper air passage to be larger than that of the lower air passage, the variable channel design can offset the flow restriction caused by the space occupied by the fixed part, and keep the airflow resistance of the upper and lower air passages unchanged.

[0027] This utility model also includes a stove, which includes the burner described above.

[0028] The positive and progressive effects of this utility model are as follows:

[0029] The inner ring burner cap has a first internal thread, and the mixing chamber has a through hole. The anti-loosening component includes a connecting part, a middle part, and a head connected sequentially from top to bottom. The connecting part has an external thread that matches the first internal thread. The anti-loosening component can pass through the through hole, and the connecting part is connected to the first internal thread. The middle part corresponds to the through hole, and there is a gap between the outer circumference of the middle part and the inner circumference of the through hole. The head fits against the mixing chamber, thereby connecting the inner ring burner cap to the mixing chamber through the anti-loosening component, thus fixing the inner ring burner cap. By setting a loosening gap between the through hole and the first internal thread, the loosening range of the inner ring burner cap is controllable. When vibration or a drop causes the anti-loosening component to move downwards, the external thread of the connecting part cannot actively enter the through hole of the mixing chamber, thus making it difficult for the anti-loosening component to fall off and the inner ring burner cap to detach from the mixing chamber. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of a burner according to an embodiment of the present invention.

[0031] Figure 2 This is a cross-sectional view of a burner according to an embodiment of the present invention.

[0032] Figure 3 This is a three-dimensional structural diagram of the inner ring flame cap according to an embodiment of the present invention.

[0033] Figure 4 This is a cross-sectional perspective view of the inner ring flame cap according to an embodiment of the present invention.

[0034] Figure 5 This is a three-dimensional structural diagram of an anti-loosening component according to an embodiment of the present invention.

[0035] Figure 6 This is a three-dimensional structural diagram of the mixing chamber according to an embodiment of the present invention.

[0036] Figure 7 This is a cross-sectional three-dimensional structural diagram of the mixing chamber according to an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] Burner 100

[0039] Inner ring fire cap 200

[0040] Fixed column 210

[0041] First internal thread 211

[0042] Chamfer 212

[0043] Mixing chamber 300

[0044] Fixing part 310

[0045] Through hole 311

[0046] Gap 312

[0047] Second internal thread 313

[0048] 320 fixing ribs

[0049] Upper air passage 330

[0050] Lower air passage 340

[0051] Anti-loosening component 400

[0052] Connecting part 410

[0053] External thread 411

[0054] Middle section 420

[0055] Head 430

[0056] Loosening gap 500

[0057] Limiting protrusion 610

[0058] Limiting groove 620 Detailed Implementation

[0059] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the following embodiments.

[0060] like Figures 1-5As shown, this embodiment provides a stove, which includes a burner 100. The burner 100 includes an inner ring burner cap 200, a mixing chamber 300, and an anti-loosening component 400. The inner ring burner cap 200 is provided with a first internal thread 211, and the mixing chamber 300 is provided with a through hole 311. The anti-loosening component 400 includes a connecting part 410, a middle part 420, and a head 430 connected sequentially from top to bottom. The connecting part 410 is provided with an external thread 411 that matches the first internal thread 211. The anti-loosening component 400 can pass through the through hole 311, and the connecting part 410 is connected to the first internal thread 211. The middle part 420 corresponds to and engages with the through hole 311. A gap 312 is provided between the outer peripheral side of the middle part 420 and the inner peripheral side of the through hole 311. The head 430 fits against the mixing chamber 300, thereby connecting the inner ring burner cap 200 to the mixing chamber 300 through the anti-loosening component 400, and fixing the inner ring burner cap 200. A loosening gap 500 is provided between the through hole 311 and the first internal thread 211, so that the loosening range of the inner ring burner cap 200 is controllable. When vibration or falling causes the anti-loosening component 400 to fall down, the external thread 411 of the connecting part 410 cannot actively enter the through hole 311 of the mixing chamber 300, so that the anti-loosening component 400 is not easy to fall off, and the inner ring burner cap 200 is not easy to detach from the mixing chamber 300.

[0061] In this embodiment, a fixing post 210 is provided at the center of the inner ring flame cap 200, and a fixing hole is provided on the fixing post 210. A first internal thread 211 is provided on the inner surface of the fixing hole. In other embodiments, those skilled in the art can also choose other suitable specific structures for the first internal thread 211.

[0062] The length of the first internal thread 211 is greater than the length of the external thread 411, so that the external thread 411 can be fully connected to the first internal thread 211, so that the anti-loosening component 400 can be more firmly connected to the inner ring burner cap 200, so that the connection between the inner ring burner cap 200 and the mixing chamber 300 is more secure and the anti-loosening effect is better.

[0063] The through hole 311 is provided with a second internal thread 313, which matches the external thread 411. The second internal thread 313 and the first internal thread 211 are of the same size, so that the connecting part 410 can be screwed into the second internal thread 313 first, and then pass through the through hole 311 to connect to the first internal thread 211. When the inner ring cap 200 becomes loose, even if the external thread 411 of the connecting part 410 enters the through hole 311, it still needs to pass through the second internal thread 313 to be completely loosened, further improving the anti-loosening effect.

[0064] The length of the middle part 420 is greater than the thread length of the second internal thread 313, so that the middle part 420 has enough length to completely pass through the through hole 311 and connect the connecting part 410 to the inner ring cap 200, and a loosening gap 500 can be formed between the through hole 311 and the first internal thread 211.

[0065] The lower end of the first internal thread 211 is provided with a guide angle 212, so that when the anti-loosening part 400 is installed, the guide angle 212 can guide the external thread 411 to connect with the first internal thread 211, so that the connecting part 410 can be smoothly screwed into the first internal thread 211, and the anti-loosening part 400 can be smoothly connected to the inner ring fire cover 200.

[0066] The head 430 is provided with a cross groove, a slotted groove or a star groove, so that the operator can use tools to twist the anti-loosening part 400 to install it, making the installation more convenient.

[0067] like Figure 3 and Figure 6 As shown, one of the inner ring burner cap 200 and the mixing chamber 300 is provided with a limiting protrusion 610 and the other is provided with a limiting groove 620. The limiting protrusion 610 is inserted into the limiting groove 620 to limit the circumferential displacement of the inner ring burner cap 200 and the mixing chamber 300, thereby preventing the inner ring burner cap 200 and the mixing chamber 300 from rotating in the circumferential direction after they are engaged, avoiding the rotation from causing the anti-loosening part 400 to loosen, and further improving the anti-loosening effect.

[0068] In this embodiment, the inner ring burner cap 200 is provided with a limiting groove 620, and the mixing chamber 300 is provided with a limiting protrusion 610. In other embodiments, the inner ring burner cap 200 may also be provided with a limiting protrusion 610, and the mixing chamber 300 may be provided with a limiting groove 620.

[0069] like Figure 6 and Figure 7 As shown, the mixing chamber 300 includes an upper air passage 330, a fixing part 310, and multiple fixing ribs 320. A through hole 311 is provided on the fixing part 310, and the two ends of the fixing ribs 320 are respectively connected to the upper air passage 330 and the fixing part 310. The fixing part 310 is fixed to the upper air passage 330 by the fixing ribs 320, thereby allowing the gas to flow in through the space between the fixing ribs 320, ensuring smooth flow of the gas in the upper air passage 330.

[0070] In this embodiment, the fixing part 310 is located at the center of the upper air passage 330. In other embodiments, the fixing part 310 may also be offset.

[0071] In this embodiment, there are three fixing ribs 320, which are evenly spaced along the circumference of the upper gas passage 330. This allows the fixing part 310 to be more firmly fixed to the upper gas passage 330, while also ensuring smooth gas flow. In other embodiments, other numbers and positions of fixing ribs 320 that are deemed suitable by those skilled in the art can also be selected.

[0072] The mixing chamber 300 also includes a lower air passage 340, and the cross-sectional area of ​​the upper air passage 330 is larger than that of the lower air passage 340. The variable channel design can offset the flow restriction caused by the space occupied by the fixed part 310, and keep the airflow resistance of the upper air passage 330 and the lower air passage 340 constant.

[0073] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0074] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A burner, characterized in that, The burner includes an inner ring flame cap, a mixing chamber, and an anti-loosening component; The inner ring flame cap is provided with a first internal thread, and the mixing chamber is provided with a through hole; The anti-loosening component includes a connecting part, a middle part and a head connected from top to bottom, and the connecting part is provided with an external thread that matches the first internal thread; The anti-loosening component can pass through the through hole, and the connecting part is connected to the first internal thread. The middle part is correspondingly engaged with the through hole. The outer peripheral side of the middle part and the inner peripheral side of the through hole are provided with a gap. The head is in contact with the mixing chamber. A loosening gap is provided between the through hole and the first internal thread.

2. The burner as claimed in claim 1, characterized in that, The length of the first internal thread is greater than the length of the external thread.

3. The burner as described in claim 1, characterized in that, The through hole is provided with a second internal thread, which matches the external thread.

4. The burner as described in claim 3, characterized in that, The length of the middle section is greater than the thread length of the second internal thread.

5. The burner as claimed in claim 1, characterized in that, The lower end of the first internal thread is provided with a chamfer.

6. The burner as claimed in claim 1, characterized in that, The head is provided with a cross groove, a straight groove, or a plum blossom groove.

7. The burner as claimed in claim 1, characterized in that, One of the inner ring burner cap and the mixing chamber is provided with a limiting protrusion, and the other is provided with a limiting groove. The limiting protrusion is inserted into the limiting groove to limit the circumferential displacement of the inner ring burner cap and the mixing chamber.

8. The burner as claimed in claim 1, characterized in that, The mixing chamber includes an upper air passage, a fixing part, and multiple fixing ribs. The through hole is provided on the fixing part, and the two ends of the fixing rib are respectively connected to the upper air passage and the fixing part.

9. The burner as claimed in claim 8, characterized in that, The mixing chamber also includes a lower air passage, and the cross-sectional area of ​​the upper air passage is larger than that of the lower air passage.

10. A stove, characterized in that, The stove includes a burner as described in any one of claims 1-9.

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