Dry-burn prevention burner and gas hob comprising same

Abstract

The utility model provides a kind of anti dry burning burner and the gas stove comprising it.The anti dry burning burner, including anti dry burning sensor, connecting portion and base.Connecting portion is made of several clamping blocks, sensor stem portion is held around, and at least one riveting hole is provided in each clamping block;corresponding riveting column is provided in the lower surface of base, and the fixing of connecting portion and base is realized by riveting.The design ensures the stability of connecting portion and base through the layout of multiple clamping blocks and riveting holes;by forming riveting column directly at the bottom of base, other adapters are saved, the structure is simplified and the intermediate parts are reduced, so that the burner structure is more compact.At the same time, without specially designing adapter to connect the base and connecting portion of burner, the processing difficulty and production cost of parts are reduced.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment, and in particular to an anti-dry-burning burner and a gas stove containing the same. Background Technology

[0002] In existing technologies, fixing the anti-dry-burning sensor in anti-dry-burning burners often requires multiple connectors or complex assembly methods to secure the sensor to the base. This results in a large number of parts and complex assembly processes, increasing manufacturing costs and affecting structural reliability due to gaps between components. Furthermore, the mounting holes between the anti-dry-burning sensor and the base may have excessive gaps during connection. Insufficient precision in the fit between the mounting holes and the insertion structure allows liquids (such as cooking liquids or steam) to easily seep into the burner through these gaps, potentially damaging electronic components.

[0003] Therefore, how to simplify the connection structure and assembly method between the anti-dry-burning sensor and the base, and how to effectively seal the mounting holes of the base while connecting the anti-dry-burning sensor and the base, have become technical problems that urgently need to be solved in this field. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect of complex connection structure between the anti-dry burning sensor and the burner base in the prior art, and to provide an anti-dry burning burner and a gas stove containing the same.

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

[0006] A dry-burning prevention burner includes a dry-burning prevention sensor, a connecting part, and a base. The connecting part fixes the dry-burning prevention sensor to the base. The connecting part includes a plurality of clamping blocks, each clamping block being arranged around the rod portion of the dry-burning prevention sensor and collectively clamping the rod portion of the dry-burning prevention sensor. Each clamping block is provided with at least one riveting hole. The lower surface of the base is provided with a plurality of riveting posts corresponding to the riveting holes of each clamping block. The clamping blocks are fixed to the base by riveting the riveting holes and the riveting posts.

[0007] The connecting part is composed of several clamping blocks that collectively hold the rod of the anti-dry-burning sensor. Each clamping block is equipped with at least one riveting hole, ensuring a more secure connection between the connecting part and the base. A riveting post is directly formed on the lower surface of the burner base and riveted directly to the connecting part, reducing intermediate transition components and making the overall burner structure simpler and more compact. This eliminates the need for a dedicated adapter to connect the base and the connecting part, thereby reducing the difficulty of component processing and production costs.

[0008] Preferably, each of the clamping blocks surrounds the rod portion of the anti-dry-burning sensor and forms an insertion structure. The base has a mounting hole through which the rod portion of the anti-dry-burning sensor passes. The insertion structure is inserted into the mounting hole, and the outer diameter of the portion of the insertion structure inserted into the mounting hole is larger than the diameter of the mounting hole.

[0009] After the insertion structure formed by the clamping block is inserted into the mounting hole of the base, the outer diameter of the portion of the insertion structure inside the mounting hole is larger than the diameter of the mounting hole, forming an interference fit. This significantly reduces the outer clearance of the mounting hole, achieving effective sealing of the mounting hole and reducing the risk of liquid intrusion. Simultaneously, the riveting operation between the lower surface of the base and the connecting part allows for the simultaneous completion of the sealing process of the mounting hole, significantly simplifying the installation procedure.

[0010] Preferably, the clamping block includes a force-bearing structure located below the insertion structure. The radial dimension of the force-bearing structure is larger than that of the insertion structure. The riveting hole is provided on the force-bearing structure. The base has a recessed structure on its lower surface that mates with the force-bearing structure. The recessed structure of the base is used to accommodate the force-bearing structure of the clamping block. The sidewall of the recessed structure abuts against the outer sidewall of the force-bearing structure.

[0011] The radial dimension of the load-bearing structure is larger than that of the insertion structure. When the connecting part and the base are riveted together, the contact area between the base and the connecting part is larger. The larger contact area can disperse the compressive force during riveting, avoid local stress concentration that could cause the clamping block to crack or deform, and improve the fatigue strength of the connection part and the base.

[0012] Preferably, the rivet hole is located in a region of the force-bearing structure that is far below the insertion structure.

[0013] The riveting hole is located in an area of ​​the load-bearing structure away from directly below the insertion structure, ensuring that the riveting force is applied away from the mating area between the insertion structure and the mounting hole. This prevents the compressive force generated during riveting from acting directly on the interference fit, thus preventing the insertion structure from deforming under stress and compromising the sealing effect. Simultaneously, the riveting position away from the center generates a larger torque, making the connection between the clamp and the base more secure and reducing the risk of loosening due to external forces such as vibration.

[0014] Preferably, the insertion structure is a cone shape with a gradually increasing cross-section from top to bottom;

[0015] And / or, the cross-sectional shape of the insertion structure matches the shape of the mounting hole.

[0016] The insertion structure is designed as a tapered shape with a cross-section that gradually increases from top to bottom. During installation, the narrow end is inserted into the mounting hole first, acting as a guide to quickly align the installation position, reducing assembly difficulty and installation errors. As the insertion depth increases, the wide end gradually embeds into the mounting hole, automatically correcting positional deviations for precise positioning and improved assembly efficiency. When the tapered structure mates with the mounting hole, the contact area increases with the insertion depth, resulting in a tighter fit and further enhancing the interference fit effect. This effectively fills the gap between the mounting hole and the insertion structure, strengthening the sealing effect and better preventing liquid seepage from the mounting hole compared to ordinary cylindrical structures. When the cross-section of the insertion structure matches the shape of the mounting hole (e.g., both are circular or square), they fit tightly, eliminating gaps caused by shape mismatch, further improving sealing reliability and ensuring the safety of the internal electronic components of the burner.

[0017] Preferably, the rod of the anti-dry burning sensor is provided with a convex ring arranged around the circumference of the rod, and each clamping block is provided with a groove that cooperates with the convex ring, and the grooves of each clamping block together form an annular groove.

[0018] The large annular contact area between the convex ring and the groove can evenly distribute stress, while the circumferential annular fit can achieve 360° uniform positioning, thereby reducing the relative wobbling between the sensor rod and the clamping block and avoiding uneven force caused by local positioning.

[0019] Preferably, the convex ring and the rod portion of the anti-dry-burning sensor are integrally formed.

[0020] The one-piece molding avoids stress concentration or connection gaps caused by welding or threaded connection between the convex ring and the rod, and also reduces assembly steps.

[0021] Preferably, the cross-section of the upper half of the convex ring includes a trapezoidal segment that is wider at the top and narrower at the bottom.

[0022] The beveled edge of the trapezoidal section provides guidance, facilitating quick alignment of the convex ring and the groove during assembly; the narrow top and wide bottom shape of the trapezoidal section enhances the sealing of the fit, preventing liquid from seeping in from the mating area of ​​the convex ring and the groove.

[0023] Preferably, the riveting holes and riveting posts are symmetrically arranged around the rod portion of the anti-dry-burning sensor.

[0024] The symmetrically arranged riveting holes and posts ensure that each riveting point bears the force evenly when the connection is riveted to the base. During burner operation, the anti-dry-burning sensor is affected by thermal expansion and contraction, vibrations generated by gas combustion, etc. Even force distribution avoids localized stress concentration and reduces deformation or damage to the connection caused by uneven stress. The symmetrical layout also allows the connection to be more securely fixed to the base. Regardless of the direction of external force, the symmetrical structure provides symmetrical reaction forces, effectively preventing the connection from shifting or loosening on the base, ensuring that the anti-dry-burning sensor is always in an accurate working position.

[0025] This utility model also provides a gas stove, which includes the burner described above.

[0026] The significant advantages of this invention are as follows: In this gas stove, a connecting part composed of several clamping blocks collectively holds the rod of the anti-dry-burning sensor. Each clamping block is equipped with at least one riveting hole, ensuring a more stable connection between the connecting part and the base. The riveting post is directly formed on the lower surface of the burner base and riveted directly to the connecting part, reducing intermediate transition components and making the overall burner structure simpler and more compact. It eliminates the need for a dedicated adapter to connect the burner head and the connecting part, thereby reducing the processing difficulty and production cost of the components. Attached Figure Description

[0027] Figure 1 This is a perspective view (a) of an embodiment of the anti-dry-burning burner of the present invention.

[0028] Figure 2 This is a perspective view (II) of an embodiment of the anti-dry-burning burner of this utility model.

[0029] Figure 3 This is a cross-sectional view (a) of the base, connecting part and anti-dry-burning sensor of one embodiment of the present invention.

[0030] Figure 4 This is a cross-sectional view (II) of the base, connecting part and anti-dry burning sensor of one embodiment of the present invention.

[0031] Figure 5 This is a perspective view of the connecting part and the anti-dry-burning sensor according to an embodiment of the present invention.

[0032] Figure 6 This is a cross-sectional view of the connecting part and the anti-dry-burning sensor according to an embodiment of the present invention.

[0033] Figure 7 This is a perspective view of an embodiment of the anti-dry-burning sensor of this utility model.

[0034] Figure 8This is a perspective view of the clamping block according to an embodiment of the present invention.

[0035] Figure 9 This is a schematic diagram showing the fit between the insertion structure and the mounting hole according to an embodiment of the present invention.

[0036] Figure 10 This is a cross-sectional view (III) of the base, connecting part and anti-dry-burning sensor of one embodiment of the present invention.

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

[0038] Anti-dry-burning burner 1

[0039] Anti-dry-burning sensor 10

[0040] 11 of the pole

[0041] Raised ring 110

[0042] Trapezoidal segment 111

[0043] Connecting part 20

[0044] Clamp 21

[0045] Force-bearing structure 210

[0046] Riveting hole 211

[0047] Annular groove 212

[0048] Base 30

[0049] lower surface 31

[0050] Riveted post 32

[0051] Mounting hole 33

[0052] concave structure 34

[0053] Insertion structure 40

[0054] The outer diameter D1 of the part of the insertion structure that is inserted into the mounting hole

[0055] Mounting hole diameter D2 Detailed Implementation

[0056] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0057] Example 1

[0058] like Figures 1-10As shown, this utility model provides an anti-dry-burning burner 1, which includes an anti-dry-burning sensor 10, a connecting part 20, and a base 30. The connecting part 20 fixes the anti-dry-burning sensor 10 to the base 30. In this embodiment, the connecting part 20 includes two clamping blocks 21. The two clamping blocks 21 are arranged around the rod part 11 of the anti-dry-burning sensor 10 and jointly clamp the rod part 11 of the anti-dry-burning sensor 10. Each clamping block 21 is provided with a riveting hole 211. The lower surface 31 of the base 30 is provided with a plurality of riveting posts 32 corresponding to the riveting holes 211 of each clamping block 21. The clamping blocks 21 are fixed to the base 30 by riveting the riveting holes 211 and the riveting posts 32.

[0059] In this embodiment, two clamping blocks 21 form a connecting part 20 and jointly clamp the rod 11 of the anti-dry-burning sensor 10. Each clamping block 21 is provided with a riveting hole 211, ensuring a more stable connection between the connecting part 20 and the base 30. In other embodiments, three or more clamping blocks 21 can be used to jointly clamp the rod 11 according to the clamping accuracy requirements. Each clamping block 21 can also have two or more riveting holes 211 according to the riveting accuracy and ease of installation requirements. Furthermore, the lower surface 31 of the base 30 of the anti-dry-burning burner 1 directly forms a riveting post 32, which is directly riveted to the riveting hole 211 on the connecting part 20. This reduces intermediate transition parts, making the entire anti-dry-burning burner 1 structure simpler and more compact. It eliminates the need for a dedicated adapter to connect the base 30 and the connecting part 20, thereby reducing the processing difficulty and production cost of the components.

[0060] like Figures 1-10 As shown, in this embodiment, two clamping blocks 21 surround the rod portion 11 of the anti-dry-burning sensor 10 and form an insertion structure 40. The base 30 has a mounting hole 33 through which the rod portion 11 of the anti-dry-burning sensor 10 passes. The insertion structure 40 is inserted into the mounting hole 33. The outer diameter D1 of the part of the insertion structure 40 inserted into the mounting hole 33 is larger than the hole diameter D2 of the mounting hole 33.

[0061] After the insertion structure 40 formed by the clamping block 21 is inserted into the mounting hole 33 of the base 30, the outer diameter D1 of the portion of the insertion structure 40 inserted into the mounting hole 33 is larger than the hole diameter D2 of the mounting hole 33. The two form an interference fit, which can significantly reduce the outer clearance of the mounting hole 33 of the base 30, effectively sealing the mounting hole 33 and reducing the risk of liquid intrusion damaging internal electronic components. At the same time, with the riveting force between the lower surface 31 of the base 30 and the connecting part 20, the sealing process of the mounting hole 33 can be completed simultaneously, significantly simplifying the installation process.

[0062] like Figures 1-10As shown, the clamping block 21 includes a force-bearing structure 210, which is located below the insertion structure 40. The radial dimension of the force-bearing structure 210 is larger than that of the insertion structure 40. A rivet hole 211 is provided on the force-bearing structure 210. The base 30 has a recessed structure 34 on its lower surface 31 that cooperates with the force-bearing structure 210. The recessed structure 34 of the base 30 is used to accommodate the force-bearing structure 210 of the clamping block 21. The sidewall of the recessed structure 34 abuts against the outer sidewall of the force-bearing structure 210.

[0063] In this embodiment, a force-bearing structure 210 is also provided below the insertion structure 40 of the clamping block 21. The radial dimension of the force-bearing structure 210 is larger than that of the insertion structure 40. A recessed structure 34 that cooperates with the force-bearing structure 210 is provided on the base 30. When the connecting part 20 and the base 30 are riveted together, the contact area between the base 30 and the connecting part 20 is larger. The larger contact area can disperse the compressive force during riveting and installation, avoid local stress concentration that could cause the clamping block 21 to crack or deform, and improve the fatigue resistance of the connection between the connecting part 20 and the base 30.

[0064] like Figures 1-10 As shown, the rivet hole 211 is located in the area of ​​the force-bearing structure 210 directly below the insertion structure 40.

[0065] In this embodiment, the riveting hole 211 is located in the area of ​​the force-bearing structure 210 away from directly below the insertion structure 40, which allows the riveting force to be away from the mating part between the insertion structure 40 and the mounting hole 33. This avoids the extrusion force generated during riveting acting directly on the interference fit, preventing the insertion structure 40 from damaging the sealing effect of the mounting hole 33 due to excessive deformation. At the same time, the riveting position away from the area directly below the insertion structure 40 can generate a larger riveting torque, making the connection between the connecting part 20 and the base 30 more secure and reducing the risk of loosening caused by external forces such as vibration.

[0066] like Figures 1-10 As shown, the insertion structure 40 is a cone with a gradually increasing cross-section from top to bottom. The cross-sectional shape of the insertion structure 40 matches the shape of the mounting hole 33. In this embodiment, both the cross-sectional shape of the insertion structure 40 and the shape of the mounting hole 33 are trapezoidal.

[0067] The insertion structure 40 is designed as a tapered shape with a cross-section that gradually increases from top to bottom. During the installation process of the insertion structure 40 and the mounting hole 33, the narrow end of the insertion structure 40 is inserted into the mounting hole 33 first, acting as a guide to quickly align the installation position, reduce assembly difficulty, and minimize installation errors. As the insertion depth increases, the wide end gradually embeds into the mounting hole 33, correcting positional deviations, achieving precise positioning, and improving assembly efficiency. When the tapered insertion structure 40 and the mounting hole 33 are fitted together, the contact area increases continuously with the insertion depth, and the compression becomes tighter, further enhancing the interference fit effect. This effectively fills the gap between the mounting hole 33 and the insertion structure 40, strengthening the sealing effect. Compared with ordinary cylindrical structures, it can better prevent liquid from seeping into the mounting hole 33. When the cross-section of the insertion structure 40 matches the shape of the mounting hole 33, the two fit tightly, eliminating gaps caused by shape mismatch, further improving sealing reliability, and ensuring the safety of the internal electronic components of the burner. In this embodiment, the cross-section of the insertion structure 40 and the mounting hole 33 is an isosceles trapezoid. In other embodiments, the cross-section of the insertion structure 40 can also be processed into other shapes with the diameter gradually increasing from top to bottom according to design requirements. This part belongs to the prior art in this field and will not be described in detail here.

[0068] like Figures 1-10 As shown, the rod portion 11 of the anti-dry burning sensor 10 is provided with a convex ring 110 arranged around the circumference of the rod portion 11, and each clamping block 21 is provided with a groove that cooperates with the convex ring 110. The grooves of each clamping block 21 together form an annular groove 212.

[0069] In this embodiment, the mating structure of the rod 11 and the clamping block 21 is configured as a convex ring 110 and an annular groove 212. This configuration results in a large contact area, which can evenly distribute stress. The circumferential annular fit can achieve 360° uniform positioning, thereby reducing the relative sway between the sensor rod 11 and the clamping block 21 and avoiding uneven force caused by local positioning. In this embodiment, the mating of the rod 11 and the clamping block 21 is a design of annular protrusion and groove. In other embodiments, the clamping block 21 may have a protruding structure and the rod may have a recessed structure to achieve connection or other forms of connection. This part belongs to the prior art in this field and will not be described in detail here.

[0070] In this embodiment, the convex ring 110 and the rod portion 11 of the anti-dry-burning sensor 10 are integrally formed.

[0071] The one-piece molding avoids stress concentration or connection gaps caused by welding, threaded connection or other methods between the convex ring 110 and the rod 11, and also reduces assembly steps.

[0072] like Figures 1-10 As shown, in this embodiment, the cross-section of the upper half of the convex ring 110 includes a trapezoidal segment 111 that is wider at the top and narrower at the bottom.

[0073] By setting the upper half of the convex ring 110 as a trapezoidal segment 111 that is wider at the top and narrower at the bottom, the inclined side of the trapezoidal segment 111 can provide guidance, making it easy for the convex ring 110 and the groove to be quickly aligned during assembly. At the same time, the shape of the trapezoidal segment 111, which is narrower at the top and wider at the bottom, enhances the sealing of the fit and can prevent liquid from seeping in from the mating area between the convex ring 110 and the groove.

[0074] like Figures 1-10 As shown, the rivet holes 211 and rivet posts 32 are symmetrically arranged around the rod portion 11 of the anti-dry-burning sensor 10.

[0075] The symmetrically arranged riveting holes 211 and riveting posts 32 ensure that the connecting part 20 can bear the force evenly at each riveting point when riveting to the base 30. During the operation of the burner, the anti-dry-burning sensor 10 is affected by thermal expansion and contraction, vibration generated by gas combustion, etc. The uniform force distribution can avoid local stress concentration and reduce deformation or damage to the connecting part 20 caused by uneven stress. The symmetrical layout allows the connecting part 20 to be more firmly fixed to the base 30. No matter which direction the external force is applied, the symmetrical structure can provide symmetrical reaction force, effectively preventing the connecting part 20 from shifting or loosening on the base 30, and ensuring that the anti-dry-burning sensor 10 is always in an accurate working position.

[0076] This utility model also provides a gas stove (not shown in the figure), which includes the anti-dry-burning burner 1 as described above.

[0077] In this gas stove, a connecting part 20 is formed by several clamping blocks 21, which together clamp the rod 11 of the anti-dry-burning sensor 10. Each clamping block 21 is provided with at least one riveting hole 211, which ensures a more stable connection between the connecting part 20 and the base 30. The riveting post 32 is directly formed on the lower surface 31 of the burner base 30 and directly riveted to the connecting part 20, reducing intermediate transition parts and making the structure of the entire anti-dry-burning burner 1 simpler and more compact. There is no need to design a special adapter to connect the base 30 and the connecting part 20, thereby reducing the processing difficulty and production cost of the parts. Furthermore, after the insertion structure 40 formed by the clamping blocks 21 is inserted into the mounting hole 33 of the base 30, the outer diameter D1 of the part of the insertion structure 40 inserted into the mounting hole 33 is larger than the hole diameter D2 of the mounting hole 33. The two form an interference fit, which can significantly reduce the outer gap of the mounting hole 33 of the base 30, achieve effective sealing of the mounting hole 33, and reduce the risk of liquid intrusion damaging the internal electronic components. At the same time, with the help of the riveting force between the lower surface 31 of the base 30 and the connecting part 20, the sealing process of the mounting hole 33 can be completed simultaneously, which significantly simplifies the installation process.

[0078] 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 dry-burning prevention burner, comprising a dry-burning prevention sensor, a connecting portion, and a base, wherein the connecting portion fixes the dry-burning prevention sensor to the base, characterized in that, The connecting part includes several clamping blocks, each clamping block is arranged around the rod of the anti-dry burning sensor and together clamps the rod of the anti-dry burning sensor. Each clamping block is provided with at least one riveting hole. The lower surface of the base is provided with a plurality of riveting posts corresponding to the riveting holes of each clamping block. The clamping blocks are fixed to the base by riveting the riveting holes and the riveting posts.

2. The anti-dry-burning burner as described in claim 1, characterized in that, Each of the clamping blocks surrounds the rod portion of the anti-dry-burning sensor and forms an insertion structure. The base has a mounting hole through which the rod portion of the anti-dry-burning sensor passes. The insertion structure is inserted into the mounting hole, and the outer diameter of the portion of the insertion structure inserted into the mounting hole is larger than the diameter of the mounting hole.

3. The anti-dry-burning burner as described in claim 2, characterized in that, The clamping block includes a force-bearing structure located below the insertion structure. The radial dimension of the force-bearing structure is larger than that of the insertion structure. The riveting hole is provided on the force-bearing structure. The base has a recessed structure on its lower surface that mates with the force-bearing structure. The recessed structure of the base is used to accommodate the force-bearing structure of the clamping block. The sidewall of the recessed structure abuts against the outer sidewall of the force-bearing structure.

4. The anti-dry-burning burner as described in claim 3, characterized in that, The rivet hole is located in the region of the force-bearing structure that is far below the insertion structure.

5. The anti-dry-burning burner as described in claim 2, characterized in that, The insertion structure is a cone shape with a gradually increasing cross-section from top to bottom; And / or, the cross-sectional shape of the insertion structure matches the shape of the mounting hole.

6. The anti-dry-burning burner as described in claim 1, characterized in that, The rod of the anti-dry burning sensor is provided with a convex ring arranged around the circumference of the rod, and each clamping block is provided with a groove that cooperates with the convex ring. The grooves of each clamping block together form an annular groove.

7. The anti-dry-burning burner as described in claim 6, characterized in that, The convex ring and the rod of the anti-dry-burning sensor are integrally formed.

8. The anti-dry-burning burner as described in claim 6, characterized in that, The cross-section of the upper half of the convex ring includes a trapezoidal segment that is wider at the top and narrower at the bottom.

9. The anti-dry-burning burner according to any one of claims 1-8, characterized in that, The riveting holes and riveting posts are symmetrically arranged around the rod of the anti-dry-burning sensor.

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

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