Liquid heater

Abstract

The liquid heater comprises an anti-overflow electrode and a conductive piece, a through mounting hole is formed in a kettle body, the anti-overflow electrode is mounted in the mounting hole, the anti-overflow electrode penetrates through the kettle body, the detection end of the anti-overflow electrode is located on the inner side of the kettle body, and the connecting end of the anti-overflow electrode is located in a handle. The connecting end of the anti-overflow electrode is connected with the conductive piece; the shielding piece is located in the handle, the shielding piece comprises an avoiding hole facing the kettle body, the shielding piece extends upwards from the left side and the right side of the avoiding hole to form gaps for containing the hoop, the avoiding hole and the gaps in the two sides jointly form a limiting tongue, the limiting tongue is located between the locking structure and the kettle body, and the anti-overflow electrode is located in the avoiding hole. The liquid heater is used for solving the technical problem that in the prior art, when an anti-overflow assembly is installed on the side wall of a kettle body, on the premise that attractiveness is guaranteed, installation convenience of a shielding piece and a hoop is difficult to consider.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid heaters, and more specifically, to a liquid heater. Background Technology

[0002] In modern kitchens, liquid heaters are increasingly common. With their precise temperature control systems and preset programs, they are often used for stewing dishes such as white fungus soup and nutritious porridge. The main processing technique is slow cooking, which ensures that the sugars and starches in the ingredients are fully extracted into the liquid, causing the beverage to gradually thicken and produce a large amount of foam. While the stewing process using liquid heaters preserves the nutrients of the ingredients, it also introduces the potential problem of foam overflow.

[0003] To address the issue of overflow during simmering with a liquid heater, prior art CN200920224720.0 discloses an anti-overflow electric kettle. This kettle has an anti-overflow electrode installed on the side wall of the kettle body. When an overflow signal is detected at the detection end of the anti-overflow electrode, the electrode controls the heating element via a conductive component. To ensure the accuracy of the detection signal, the detection end of the anti-overflow electrode needs to be positioned above the maximum water level line of the kettle body. Furthermore, to allow for the foam to continue rising due to thermal inertia after an overflow signal is detected, the detection end of the anti-overflow electrode needs to be positioned between the maximum water level line of the kettle body and the kettle spout.

[0004] On the other hand, the handle of a liquid heater is generally installed to the kettle body in two ways. The first method involves extending the upper end of the handle to the edge of the kettle spout and using a hook-like structure to attach the handle to the kettle body. The second method often uses a metal band, or clamp, to secure the handle. Specifically, the kettle has a groove that surrounds the kettle body. The metal band is placed in the groove, forming a clamp around the kettle body. The ends of the metal band overlap, and through holes are formed at the overlap. Bolts are typically used to secure the clamp by passing through the handle and the through holes at both ends of the metal band. For ease of description later, the overlapping ends of the metal band and the through holes at the overlap are referred to as the locking structure.

[0005] For transparent kettle bodies, when using clamps to secure the handle, the locking structure is visible to the user, affecting the aesthetics of the liquid heater. Therefore, prior art CN201821445432.3 proposes a liquid heater that uses a single, integral shielding component between the cup body and the clamp. This shielding component prevents the user from seeing the locking structure from inside the transparent kettle body. It also conceals the conductive parts of the anti-overflow electrode, ensuring the liquid heater's aesthetics.

[0006] However, existing technology requires through holes on both sides of the shield to secure the handle and clamp. The clamp's two ends pass through these holes from the kettle body towards the handle, making installation difficult. This is particularly problematic for liquid heaters where the anti-overflow electrode is mounted on the side wall of the kettle body. In existing designs, the shield obstructs the clamp's locking structure, thus occupying the anti-overflow electrode's mounting position and hindering its installation. If a hole is directly made in the shield to provide installation space for the anti-overflow component, the hole in the shield must simultaneously align with the anti-overflow component when the clamp passes through its through hole. Furthermore, because the clamp passes through the shield's through hole, the limited space between the shield and the clamp makes simultaneous alignment of the shield with the anti-overflow component difficult, further increasing installation complexity. For the existing technology, the specific installation process of the shield is as follows: ① The metal strip is wrapped around the groove, and the two ends of the metal strip pass through the through holes on both sides of the shield. The through holes at the two ends of the metal strip overlap to facilitate the subsequent screwing in of the bolt; ② Align the handle with the overlapping through holes at the two ends of the metal strip; ③ Slowly screw the bolt through the metal strip (which is equivalent to a clamp at this time) and the handle, and always ensure that the opening of the shield is aligned with the anti-overflow component.

[0007] If no hole is made in the shielding component, the existing technology requires installing an anti-overflow electrode on the upper or lower side of the shielding component, away from the locking structure, which necessitates thickening the handle to install the anti-overflow electrode. On the other hand, installing the anti-overflow electrode on the upper or lower side of the shielding component also results in the anti-overflow electrode being positioned too high or too low, which is not conducive to accurately detecting the overflow signal. Utility Model Content

[0008] The purpose of this utility model is to provide a liquid heater to solve the technical problem that, when installing anti-overflow components on the side wall of the kettle body, it is difficult to balance the aesthetics with the ease of installation of the shielding component and the clamp.

[0009] This application provides a liquid heater, including a transparent pot body and a handle. A clamp is fitted onto the outer wall of the pot body, and the clamp has a locking structure. The upper end of the handle is fixed to the pot body, and the locking structure is located inside the handle. An anti-overflow assembly includes an anti-overflow electrode and a conductive element. The pot body has a through mounting hole, and the anti-overflow electrode is installed in the mounting hole, passing through the pot body. The detection end of the anti-overflow electrode is located inside the pot body, and the connection end of the anti-overflow electrode is located inside the handle and connected to the conductive element. A blocking element is located inside the handle and includes a clearance hole facing the pot body. The blocking element extends upward from the left and right sides of the clearance hole to form gaps to accommodate the clamp. The clearance hole and the gaps on both sides together form a limiting tongue, which is located between the locking structure and the pot body. The anti-overflow electrode is located inside the clearance hole, and the conductive element is located between the blocking element and the handle.

[0010] Furthermore, the aforementioned gap divides the wall of the clearance hole into an upper arc surface located on the limiting tongue and a lower arc surface located away from the limiting tongue. The thickness of the lower arc surface is greater than the thickness of the upper arc surface, and the lower arc surface abuts against the aforementioned anti-overflow electrode.

[0011] Furthermore, the aforementioned anti-overflow electrode includes a detection element and a sealing sleeve located between the detection element and the mounting hole, wherein the outer end of the sealing sleeve located on the outer side of the vessel body abuts against the clearance hole.

[0012] Furthermore, the aforementioned kettle body includes a kettle body, a kettle spout with an average outer diameter smaller than that of the kettle body, and an arc-shaped segment for the transition from the kettle spout to the kettle body. The kettle spout, the arc-shaped segment, and the kettle body are integrally formed. The aforementioned clamp is located at the kettle spout, and the aforementioned anti-overflow electrode and the aforementioned mounting hole are located at the aforementioned arc-shaped segment.

[0013] Furthermore, the aforementioned limiting tongue is located at the spout, the clearance hole is located in the arc-shaped section, the lower end of the limiting tongue is located at the junction of the spout and the arc-shaped section, and the lower end of the limiting tongue abuts against the anti-overflow electrode.

[0014] Furthermore, the aforementioned anti-overflow electrode includes a detection element and a sealing sleeve located between the detection element and the mounting hole. The sealing sleeve includes an outer end located on the outside of the pot body and an inner end located on the inside of the pot body. The outer end of the sealing sleeve is sealed to the outer wall of the pot body, and the inner end of the sealing sleeve is sealed to the inner wall of the pot body. The sealing sleeve also includes a shaft hole that passes through the mounting hole. The detection element passes through the shaft hole. The portion of the detection element located on the inside of the pot body is the detection end, and the portion of the detection element located on the outside of the pot body is the connection end.

[0015] Furthermore, the aforementioned testing component includes a testing head with a testing end and a locking component with a connecting end. The outer diameter of the testing head is larger than the inner diameter of the shaft hole. The testing head is sealed to the inner end of the sealing sleeve. The locking component extends from the outside of the pot body into the shaft hole and is threaded to the testing head. The outer diameter of the locking component is larger than the inner diameter of the shaft hole. The locking component is sealed to the outer end of the sealing sleeve.

[0016] Furthermore, the aforementioned testing component includes a locking component and a testing head having a testing end and a connecting end. The outer diameter of the testing head is larger than the inner diameter of the shaft hole. The testing head is sealed to the inner end of the sealing sleeve. The connecting end passes through the sealing sleeve from the inside of the pot body and is located on the outside of the pot body. The testing head is threaded to the locking component, which is located on the outside of the pot body. The locking component is sealed to the outer end of the sealing sleeve.

[0017] Furthermore, a gasket is provided between the locking element and the outer end of the sealing sleeve.

[0018] Furthermore, the thickness of the outer end is less than the thickness of the inner end.

[0019] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0020] In this embodiment, a movable limiting tongue is formed by an avoidance hole. The movable limiting tongue is positioned by plugging in, which allows the shielding component to have a larger range during installation. This ensures that the shielding component can be installed in a convenient position when installing the anti-overflow component on the side wall of the pot body, while ensuring the aesthetics of the shielding component covering the locking structure and conductive components. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the handle, clamp, and kettle body in an embodiment of this application.

[0022] Figure 2 This is a schematic diagram of the structure of the receiving groove, the outer shell, and the connecting frame in the embodiment of this application.

[0023] Figure 3 This is a schematic diagram showing the positional relationship between the clamp, the pot body, the anti-overflow electrode, and the shielding component in an embodiment of this application.

[0024] Figure 4 This is a schematic diagram showing the positional relationship between the anti-overflow electrode and the conductive component and the handle in an embodiment of this application.

[0025] Figure 5 This is a schematic diagram of the structure of the shielding component in an embodiment of this application.

[0026] Figure 6 This is a schematic diagram of the structure of the clearance hole, gap, and limiting tongue in the embodiments of this application.

[0027] Figure 7 This is a schematic diagram of the structure when the detection end and the connection end are located at the detection head and the locking member, respectively, according to an embodiment of this application.

[0028] Figure 8 This is a schematic diagram of the structure when both the detection end and the connection end are located in the detection head according to an embodiment of this application.

[0029] Reference numerals: 1-Pot body, 2-Clamp, 3-Handle, 4-Anti-overflow component, 401-Anti-overflow electrode, 402-Conductive component, 410-Detection end, 420-Connection end, 4011-Detection head, 4012-Locking component, 4013-Sealing sleeve, 4014-Gasket, 5-Shielding component, 501-Allowing hole, 5011-Upper arc surface, 5012-Lower arc surface, 502-Gap, 503-Limiting tongue. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Existing technology improves the aesthetics of the liquid heater by setting a shielding member 5 between the cup body and the clamp 2. The shielding member 5 has through holes on both sides. During installation, the clamp 2 passes through these through holes from the cup body 1 towards the handle 3, making installation difficult. If a hole is directly made in the shielding member 5 to provide installation space for the anti-overflow component 4, the hole in the shielding member 5 needs to be aligned with the anti-overflow component 4 when the clamp 2 passes through the through hole. Furthermore, because the clamp 2 passes through the through hole in the shielding member 5, the space for movement between the shielding member 5 and the clamp 2 is small, making it difficult for the shielding member 5 to simultaneously align with the anti-overflow component 4, further increasing the installation difficulty. If no hole is made in the shielding member 5, it occupies the ideal installation position for the anti-overflow electrode 401, leading to inconvenience in installing the anti-overflow electrode 401 and a decrease in detection accuracy.

[0032] In this embodiment, to install the anti-overflow component 4 on the side wall of the kettle body 1, the shield 5 provides a clearance hole 501 for the anti-overflow electrode 401. The anti-overflow electrode 401 passes through the clearance hole 501 and is installed to the kettle body 1. The conductive element 402 of the anti-overflow electrode 401 is located between the shield 5 and the handle 3 to prevent the user from seeing the conductive element 402. Furthermore, the hollow area formed on the shield 5 by the clearance hole 501 and the gap 502 formed by the upward extension of both sides of the clearance hole 501 together form a movable limiting tongue 503. The limiting tongue 503 is inserted between the locking structure and the kettle body 1 to fix the shield 5.

[0033] In summary, the movable limiting tongue 503 formed by the clearance hole 501 in this embodiment is positioned by plugging in, which allows the shielding member 5 to have a larger range during installation. This ensures that the shielding member 5 can be installed in a convenient position when installing the anti-overflow component 4 on the side wall of the pot body 1, while ensuring the aesthetics of the shielding member 5 in concealing the locking structure and the conductive member 402.

[0034] like Figure 1 As shown, the liquid heater includes a transparent vessel body 1 and a handle 3. The vessel body 1 is entirely visible. The vessel body 1 is preferably made of glass, but is not limited to other transparent materials. The handle 3 is often secured to the vessel body 1 using a metal band, or clamp 2.

[0035] like Figure 2As shown, the handle 3 has a receiving groove on the side near the body 1, with the opening of the receiving groove facing the body 1. A locking structure is located inside the receiving groove. When the user rinses the liquid heater, the locking structure inside the receiving groove can prevent water from accumulating and rusting at the locking structure. Since the body 1 is made of glass, to prevent the body 1 from breaking when the handle 3 is installed with the body 1, the handle 3 is often made of plastic. For the plastic handle 3, the receiving groove is formed by shelling the contact surface between the handle 3 and the body 1. Therefore, the receiving groove almost completely covers the contact surface between the handle 3 and the body 1, and the wall thickness of the receiving groove is almost the same.

[0036] Furthermore, the handle 3 consists of a connecting frame that fits between the outer shell and the body 1. The outer shell is installed on the side of the connecting frame away from the body 1, and the outer shell and the connecting frame can be snapped together. A receiving groove is located on the side of the connecting frame closer to the body 1, and the connecting frame also has through holes for connection and clamp 2. The outer shell is located on the side of the handle 3 that fits against the user's thumb and forefinger when gripped, and the outer shell is used to cover the through holes of the connecting frame. A receiving cavity for accommodating the conductive component 402 is formed between the connecting frame and the outer shell. A blocking component 5 is installed in the receiving groove of the handle 3, and the blocking component 5 abuts against the outer wall of the body 1. The blocking component 5 is located between the body 1 and the handle 3, so the blocking component 5 can be used to block the bolt, the conductive component 402, and the receiving groove of the handle 3.

[0037] like Figure 3 As shown, a groove is provided around the outer wall of the pot body 1. A metal strip is placed in the groove and surrounds the pot body 1 to form a clamp 2. Through holes are provided at both ends of the metal strip, and the through holes at both ends of the metal strip overlap to form a locking structure. During installation, bolts are generally used to pass through the through holes of the connecting bracket and the locking structure and tighten them to fix the handle 3 and the clamp 2 to the pot body 1. In addition, non-removable processes such as welding or gluing can also be used to fix the clamp 2. For example, in the welding process, the handle 3 has grooves on both sides for the metal strip to pass through. After the metal strip passes through the grooves of the handle 3, the two ends of the handle 3 are overlapped, and then the overlap is welded to fix the clamp 2 and the handle 3. At this time, the overlap of the metal strip is the locking structure.

[0038] like Figure 4 As shown, the anti-overflow component 4 includes an anti-overflow electrode 401 and a conductive element 402. The kettle body 1 has a through mounting hole, which can be drilled from the outside of the kettle body 1 inwards. The anti-overflow electrode 401 passes through the kettle body 1 and is installed in the mounting hole. The detection end 410 of the anti-overflow electrode 401 is located inside the kettle body 1 and is used to detect overflow signals. The connection end 420 of the anti-overflow electrode 401 is located in the groove of the handle 3. The conductive element 402 is led out from the connection end 420 of the anti-overflow electrode 401 to transmit the overflow signal. After being led out, the conductive element 402 passes through the receiving cavity of the handle 3 and is ultimately connected to a heating element, coupler, or heating control module related to the anti-overflow function.

[0039] The aforementioned anti-overflow electrode 401 includes a detection element and a sealing sleeve 4013 located between the detection element and the mounting hole. The sealing sleeve 4013 includes an outer end located outside the vessel body 1 and an inner end located inside the vessel body 1. The diameter of both the outer end and the inner end of the sealing sleeve 4013 is larger than the diameter of the mounting hole.

[0040] Furthermore, for the anti-overflow electrode 401, the ideal detection position of the detection end 410 is between the maximum water level line of the kettle body 1 and the kettle spout. Preferably, the detection position of the detection end 410 is half the distance between the maximum water level line and the kettle spout, which is 40mm to 60mm from the kettle spout. This avoids the detection end 410 being too close to the maximum water level line, which would cause the anti-overflow electrode 401 to frequently detect overflow signals. It also avoids the detection end 410 being too far from the kettle spout, preventing the foam from continuing to rise and overflow due to thermal inertia.

[0041] On the other hand, to prevent the handle 3 from being held too high, making it difficult for the user to lift the liquid heater, the upper end of the clamp 2 usually needs to be at least 10mm away from the spout, preferably 40mm to 60mm away. Therefore, the installation height of the clamp 2 is quite close to the installation height of the detection end 410. Furthermore, since the clamp 2 is located at the upper end of the handle 3's receiving groove, and the upper side of the clamp 2 has limited installation space, the anti-overflow electrode 401 is located on the lower side of the clamp 2.

[0042] like Figure 5 As shown, the shielding member 5 has a clearance hole 501 facing the pot body 1. The inner diameter of the clearance hole 501 is larger than the outer diameter of the conductive member 402, ensuring that the conductive member 402 can pass through the clearance hole 501. The shielding member 5 extends upward from the left and right sides of the clearance hole 501 to form gaps 502 for accommodating the clamp 2. The clearance hole 501 and the gaps 502 on both sides together form a limiting tongue 503. The limiting tongue 503 is generally located in the middle of the shielding member 5. During installation, the limiting tongue 503 needs to be inserted between the locking structure and the pot body 1 to prevent the bolt from passing through the locking structure too far, causing the bolt to abut against the pot body 1 and damage the pot body 1. The conductive member 402 can be a wire or a conductive hardware component.

[0043] In this embodiment, during installation, the limiting tongue 503 of the shielding component 5 can be inserted between the clamp 2 and the pot body 1 by plugging. At the same time, the gaps 502 on both sides of the limiting tongue 503 extend to the clearance hole 501. The shielding component 5 with this structure has a large range of motion when it is engaged with the clamp 2, which makes it easy to adjust the position of the shielding component 5. Thus, during the installation process, it is not necessary to ensure that the opening of the shielding component 5 is aligned with the anti-overflow component 4 at all times, as in the prior art.

[0044] After installation, the limiting tongue 503 is located between the locking structure and the kettle body 1, the clamp 2 is located in the gaps 502 on both sides of the limiting tongue 503, and the anti-overflow electrode 401 is located in the clearance hole 501, all working together to prevent the limiting tongue 503 from shifting. Overall, the blocking part 5 is located in the receiving groove of the handle 3, and the blocking part 5 abuts against the kettle body 1, thereby preventing the blocking part 5 from falling off.

[0045] Furthermore, the blocking component 5 can be made of elastic materials such as silicone or rubber. Therefore, the limiting tongue 503 can be bent and movable during installation, increasing the range of motion of the blocking component 5 during installation.

[0046] For thinner shielding parts 5, flexible materials have weaker torsional strength, which may lead to accidental displacement during installation. Therefore, shielding parts 5 can be made of materials with high torsional strength, such as rigid plastics, but the material should not be too hard to prevent accidental damage to the glass pot body 1.

[0047] like Figure 6 As shown, the aforementioned gap 502 separates the wall of the clearance hole 501 into an upper arc surface 5011 and a lower arc surface 5012.

[0048] The upper arc surface 5011 is located at the limiting tongue 503. For the elastic blocking member 5, the thinner limiting tongue 503 facilitates the adjustment of the blocking member 5's position. The lower arc surface 5012 is away from the limiting tongue 503. The thickness of the lower arc surface 5012 is greater than that of the upper arc surface 5011, ensuring the strength of the lower arc surface 5012 when it abuts against the anti-overflow electrode 401 and preventing folding at the lower arc surface 5012.

[0049] The detection element is generally made of conductive metal. To prevent the detection element from damaging the mounting hole and to ensure the seal between the detection element and the mounting hole, the aforementioned anti-overflow electrode 401 includes a detection element and a sealing sleeve 4013 located between the detection element and the mounting hole. The outer end of the sealing sleeve 4013 located on the outside of the vessel body 1 abuts against the clearance hole 501, thereby preventing the shielding element 5 from shifting during installation.

[0050] like Figure 7As shown, the sealing sleeve 4013 includes an outer end located on the outside of the vessel body 1 and an inner end located on the inside of the vessel body 1. The diameters of both the outer and inner ends of the sealing sleeve 4013 are larger than the diameter of the mounting hole to prevent the sealing sleeve 4013 from sliding off along the mounting hole during installation. The sealing sleeve 4013 has a shaft hole penetrating the mounting hole of the vessel body 1, and the sealing sleeve 4013 is sealed to the aforementioned detection element. The sealing sleeve 4013 is generally a silicone sleeve or a rubber sleeve. When installing the sealing sleeve 4013, the inner or outer end can be squeezed to pass through the mounting hole, thus completing the installation of the sealing sleeve 4013. Simultaneously, the outer end of the sealing sleeve 4013 abuts against the outer wall of the vessel body 1 to form a sealed connection, and the inner end of the sealing sleeve 4013 abuts against the inner wall of the vessel body 1 to form a sealed connection, thereby preventing the sealing sleeve 4013 from sliding within the mounting hole. Furthermore, the inner or outer end of the sealing sleeve 4013 is thinner, making it easier to compress that side during installation. Furthermore, the inner and outer ends of the sealing sleeve 4013 abut against the inner and outer walls of the vessel body 1, respectively, to prevent the sealing sleeve 4013 from sliding within the mounting hole.

[0051] During installation, the aforementioned detection component passes through the aforementioned shaft hole. The portion of the aforementioned detection component located inside the pot body 1 is the detection end 410, and the portion of the aforementioned detection component located outside the pot body 1 is the connection end 420.

[0052] Specifically, the aforementioned testing components include a testing head 4011 with a testing end 410 and a locking member 4012 with a connecting end 420. The testing head 4011 and the locking member 4012 are threadedly connected. The testing head 4011 consists of an integrally formed testing end 410 and an internally threaded rod. The internally threaded rod has an internally threaded hole that is threadedly connected to the externally threaded rod. The outer diameter of the testing end 410 is larger than the inner diameter of the shaft hole. After installation, the testing end 410 abuts against the inner end of the sealing sleeve 4013 to form a sealed connection. The internally threaded rod is located inside the shaft hole of the sealing sleeve 4013. The locking member 4012 consists of an integrally formed connecting end 420 and an externally threaded rod. The outer diameter of the connecting end 420 is larger than the inner diameter of the shaft hole. After installation, the connecting end 420 abuts against the outer end of the sealing sleeve 4013 to form a sealed connection. The externally threaded rod is located inside the shaft hole of the sealing sleeve 4013, and the externally threaded rod is threadedly connected to the internally threaded rod. Furthermore, a gasket 4014 is provided between the outer end of the locking member 4012 and the sealing sleeve 4013, thereby increasing the force-bearing area between the connecting end 420 and the sealing sleeve 4013 and ensuring the reliability of the installation.

[0053] The above-mentioned testing components can also adopt other structures, such as Figure 8As shown, the aforementioned detection component includes a locking member 4012 and a detection head 4011 having a detection end 410 and a connecting end 420. The outer diameter of the detection head 4011 is larger than the inner diameter of the shaft hole. The detection head 4011 is sealed to the inner end of the sealing sleeve 4013. The connecting end 420 passes through the sealing sleeve 4013 from the inside of the pot body 1 and is located on the outside of the pot body 1. The detection head 4011 is threadedly connected to the locking member 4012. The locking member 4012 is located on the outside of the pot body 1 and is sealed to the outer end of the sealing sleeve 4013. The detection head 4011 consists of an integrally formed detection head 4011 and an externally threaded rod. The outer diameter of the detection head 4011 is larger than the inner diameter of the shaft hole; after installation, the detection head 4011 abuts against the inner end of the sealing sleeve 4013 to form a sealed connection. The threaded rod is located inside the shaft hole of the sealing sleeve 4013, passing through the shaft hole so that its end protrudes from the vessel body 1, with the protruding portion forming the connecting end 420. The locking element 4012 consists of the integrally formed connecting end 420 and the threaded rod. The outer diameter of the connecting end 420 is larger than the inner diameter of the shaft hole; after installation, the connecting end 420 abuts against the outer end of the sealing sleeve 4013 to form a sealed connection. The threaded rod is located outside the vessel body 1, and is threadedly connected to the sealing sleeve 4013, forming a sealed connection.

[0054] The aforementioned teapot body 1 is generally either a cylindrical teapot body 1 with the same or approximately the same outer diameter, or a constricted-mouth teapot body 1 with an outer diameter at the upper end of the spout smaller than that at the lower end of the body. For the cylindrical teapot body 1, the outer diameter variation is small, making the installation of the handle 3, clamp 2, and cover 5 relatively easy. For the constricted-mouth teapot body 1, the outer diameter variation is larger, allowing for more varied and aesthetically pleasing designs, but installing the handle 3, clamp 2, and cover 5 is more difficult.

[0055] This embodiment can employ a constricted-mouth type kettle body 1. The kettle body 1 includes a kettle body, a spout with an average outer diameter smaller than the kettle body, and an arc-shaped section for the transition from the spout to the kettle body. The spout, the arc-shaped section, and the kettle body are integrally formed, and the aforementioned clamp 2 is located at the spout. To ensure the structural strength and capacity of the kettle body 1, the arc-shaped section with a changing outer diameter is generally located near the upper end of the kettle body 1, and is often higher than the maximum water level line of the kettle body 1. On the other hand, the inner diameter of the arc-shaped section is also decreasing, so the foam generated by the beverage gathers in the arc-shaped section for easy detection. Therefore, the aforementioned anti-overflow electrode 401 and the aforementioned mounting hole are located in the aforementioned arc-shaped section. The aforementioned limiting tongue 503 is located at the spout, and the clearance hole 501 is located in the arc-shaped section. There is an outer diameter difference between the arc-shaped section and the spout. When the lower end of the limiting tongue 503 is located at the junction of the spout and the arc-shaped section, the limiting tongue 503 can be supported by the upward oblique force of the arc-shaped section, which can prevent the blocking part 5 from falling during installation. The aforementioned mounting hole is located on the aforementioned arc-shaped section, and the lower end of the limiting tongue 503 abuts against the anti-overflow electrode 401, which can further prevent the shielding part 5 from falling.

[0056] Furthermore, it should be noted that the liquid heater of this utility model is not limited to the integrated motor and cup food processor disclosed in the embodiments of this utility model. It can also be a soymilk maker with the motor mounted on top, a blender with the cup and base separated, and a hand-washable food processor that can automatically discharge and clean itself. Moreover, the liquid heater of this utility model can also be applied to heating appliances that can perform boiling operations, rice paste making, etc., such as health pots and health cookers.

[0057] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid heater, comprising a transparent pot body and a handle, characterized in that, The outer wall of the kettle body is fitted with a clamp, which has a locking structure. The upper end of the handle is fixed to the kettle body, and the locking structure is located inside the handle. An anti-overflow assembly includes an anti-overflow electrode and a conductive component. The kettle body has a through mounting hole, the anti-overflow electrode is installed in the mounting hole, the anti-overflow electrode passes through the kettle body, the detection end of the anti-overflow electrode is located inside the kettle body, the connection end of the anti-overflow electrode is located inside the handle, and the connection end of the anti-overflow electrode is connected to the conductive component. A shielding component is located inside the handle. The shielding component includes a clearance hole facing the kettle body. The shielding component extends upward from the left and right sides of the clearance hole to form a gap for accommodating the clamp. The clearance hole and the gaps on both sides together form a limiting tongue. The limiting tongue is located between the locking structure and the kettle body. The anti-overflow electrode is located inside the clearance hole. The conductive component is located between the shielding component and the handle.

2. A liquid heater according to claim 1, characterized in that: The gap divides the wall of the clearance hole into an upper arc surface located on the limiting tongue and a lower arc surface away from the limiting tongue. The thickness of the lower arc surface is greater than the thickness of the upper arc surface, and the lower arc surface abuts against the anti-overflow electrode.

3. A liquid heater according to claim 1, characterized in that: The anti-overflow electrode includes a detection element and a sealing sleeve located between the detection element and the mounting hole. The outer end of the sealing sleeve located on the outside of the pot body abuts against the clearance hole.

4. A liquid heater according to claim 1, characterized in that: The kettle body includes a kettle body, a kettle spout with an average outer diameter smaller than the kettle body, and an arc-shaped segment for the transition from the kettle spout to the kettle body. The kettle spout, the arc-shaped segment, and the kettle body are integrally formed. The clamp is located at the kettle spout, and the anti-overflow electrode and the mounting hole are located on the arc-shaped segment.

5. A liquid heater according to claim 4, characterized in that: The limiting tongue is located at the spout of the kettle, the clearance hole is located in the arc-shaped section, the lower end of the limiting tongue is located at the junction of the spout and the arc-shaped section, and the lower end of the limiting tongue abuts against the anti-overflow electrode.

6. A liquid heater according to claim 1, characterized in that: The anti-overflow electrode includes a detection element and a sealing sleeve located between the detection element and the mounting hole. The sealing sleeve includes an outer end located on the outside of the pot body and an inner end located on the inside of the pot body. The outer end of the sealing sleeve is sealed to the outer wall of the pot body, and the inner end of the sealing sleeve is sealed to the inner wall of the pot body. The sealing sleeve also includes a shaft hole that passes through the mounting hole. The detection element passes through the shaft hole. The portion of the detection element located inside the pot body is the detection end, and the portion of the detection element located outside the pot body is the connection end.

7. A liquid heater according to claim 6, characterized in that: The detection component includes a detection head with a detection end and a locking component with a connecting end. The outer diameter of the detection head is larger than the inner diameter of the shaft hole. The detection head is sealed to the inner end of the sealing sleeve. The locking component extends from the outside of the pot body into the shaft hole and is threaded to the detection head. The outer diameter of the locking component is larger than the inner diameter of the shaft hole. The locking component is sealed to the outer end of the sealing sleeve.

8. A liquid heater according to claim 6, characterized in that: The detection component includes a locking element and a detection head having a detection end and a connecting end. The outer diameter of the detection head is larger than the inner diameter of the shaft hole. The detection head is sealed to the inner end of the sealing sleeve, and the connecting end passes through the sealing sleeve from the inside of the pot body and is located on the outside of the pot body. The detection head is threadedly connected to the locking element, which is located on the outside of the pot body and is sealed to the outer end of the sealing sleeve.

9. A liquid heater according to claim 7, characterized in that: A gasket is provided between the locking element and the outer end of the sealing sleeve.

10. A liquid heater according to claim 6, characterized in that: The thickness of the outer end is less than the thickness of the inner end.

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