Connecting structure and electric kettle

Abstract

The utility model discloses a connecting structure which comprises a kettle body and an upper cover, a connecting part is arranged at the upper end of the kettle body, the upper cover is connected with a sealing assembly, the sealing assembly comprises a sealing ring and a locking ring, the sealing ring is attached to the outer surface of the connecting part and abuts against the upper cover, the locking ring enables the sealing ring to be attached to the outer surface of the connecting part, and one side of the locking ring is connected with the upper cover. The connecting part, the sealing ring, the locking ring and the upper cover are arranged layer by layer, so that the kettle body can be stably connected with the upper cover through the sealing assembly, the connecting and sealing effect of the kettle body and the upper cover is improved, the problem of water leakage at the sealing joint in daily use or in a load-bearing state is avoided, meanwhile, assembling is conducted in a layer-by-layer arrangement mode, batch production is facilitated, and the cost is reduced. And repeated disassembly and assembly in the later period are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliances, and particularly relates to a connection structure and an electric kettle. Background Art

[0002] With the continuous iteration and update of electric kettles, consumers have higher and higher requirements for the appearance and functions of kettles. Some consumers begin to pursue a comprehensive electric kettle with a 360° glass panoramic view, a handle with a wood grain effect, and a non-connected lower lid of the kettle, and the kettle lid can prevent dust and has a certain anti-tipping function.

[0003] In the prior art, there are common electric kettles with a "D"-shaped cross-section and electric kettles with the handle only connected to the upper end of the kettle body. The electric kettle with a "D"-shaped cross-section cannot meet the requirement of 360° visibility of the kettle body. For the electric kettle with the handle only connected to the upper end of the kettle body, since the two modules are fixed and bonded by glue, it is more cumbersome to disassemble. After disassembly, when the user reassembles, the original sealing effect cannot be achieved, resulting in water leakage problems. At the same time, this assembly method involves the mutual fitting of the glass kettle body and the plastic handle. When the cross-section of the glass kettle body is not a perfect circle, in order to achieve the sealing effect, there are high requirements for the assembly process. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a connection structure and an electric kettle to solve the above technical problems. By arranging the connection part, the sealing ring, the locking ring, and the upper cover layer by layer, the kettle body can be stably connected to the upper cover through the sealing component, improving the connection sealing effect between the kettle body and the upper cover, thereby avoiding water leakage at the sealing joint during daily use or under a load-bearing state. At the same time, the assembly is carried out in a layer-by-layer setting method, which is convenient for mass production and also facilitates repeated disassembly and assembly in the later stage.

[0005] To achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A connection structure includes a kettle body and an upper cover. A connection part is arranged at the upper end of the kettle body, and the upper cover is connected with a sealing component. The sealing component is sleeved on the outer periphery of the connection part. The sealing component includes a sealing ring that fits on the outer surface of the connection part and abuts against the upper cover, and a locking ring that keeps the sealing ring fitting on the outer surface of the connection part and is connected to the upper cover on one side. By arranging the connection part, the sealing ring, the locking ring, and the upper cover layer by layer, the kettle body can be stably connected to the upper cover through the sealing component, improving the connection sealing effect between the kettle body and the upper cover, thereby avoiding water leakage at the sealing joint during daily use or under a load-bearing state. At the same time, the assembly is carried out in a layer-by-layer setting method, which is convenient for mass production and also facilitates repeated disassembly and assembly in the later stage.

[0007] Preferably, the locking ring includes a ring body and a fitting surface disposed inside the ring body and fitting with the sealing ring. The fitting surface includes a first fitting surface, a second fitting surface disposed obliquely below the first fitting surface, and an intermediate fitting surface. Both ends of the intermediate fitting surface are respectively in contact with the lower end of the first fitting surface and the upper end of the second fitting surface. One side of the upper cover is connected to the ring body. With the center of the ring body as the axis, the distances between the first fitting surface and the second fitting surface and the axis gradually decrease in the radial direction, so that the fitting surface forms a stepped shape. When the ring body is in the locked state, the fitting surface continuously applies force to press the sealing ring to achieve a sealing effect. After the upper cover is connected to the locking ring, the fitting surface is made to fit with the sealing ring by locking the locking ring, improving the sealing effect between the sealing ring and the connecting part, thereby avoiding the problem of water leakage at the sealing joint during daily use or under a load-bearing state. At the same time, the assembly is carried out in a layer-by-layer setting method, which is convenient for mass production.

[0008] Preferably, the sealing ring includes a vertical sealing end with both sides respectively fitting with the connecting part and the fitting surface, and a horizontal sealing end connected to the vertical sealing end. The upper end of the horizontal sealing end fits with the inside of the upper cover, and the lower end of the horizontal sealing end fits with the upper end of the ring body. The first fitting surface, the second fitting surface, and the intermediate fitting surface all fit with the vertical sealing end, and the vertical sealing end is formed into a stepped shape, thereby improving the sealing effect between the sealing ring and the locking ring. After the upper cover is connected to the locking ring, the upper cover continuously fits with the horizontal sealing end and applies force to press the horizontal sealing end to achieve a sealing effect; thereby avoiding the problem of water leakage at the sealing joint during daily use or under a load-bearing state.

[0009] Preferably, a fitting portion is provided inside the upper cover, and the fitting portion fits with the upper end of the horizontal sealing end. The fitting portion and the upper end of the ring body are in a flat state; when the upper cover is connected to the ring body, the fitting portion, the horizontal sealing end, and the ring body are arranged in sequence and are fitted in multiple layers, improving the sealing degree between the upper cover and the ring body, applying force to press the horizontal sealing end to achieve a sealing effect, thereby avoiding the problem of water leakage at the sealing joint during daily use or under a load-bearing state.

[0010] Preferably, a buckle groove is provided on the outer side of the ring body, and the upper cover is provided with a buckle position that engages with the buckle groove to connect the upper cover and the ring body. The buckle position is arranged below the fitting part. A plurality of buckle grooves and buckle positions are correspondingly arranged. By correspondingly arranging the buckle groove and the buckle position, the upper cover and the ring body are connected. This connection method facilitates the connection and installation between the upper cover and the ring body. At the same time, after the buckle groove and the buckle position are connected, the fitting part continuously applies force to the upper end of the transverse sealing end, thereby improving the sealing effect between the upper cover and the sealing ring and avoiding the problem of water leakage. The buckle groove includes an inclined groove provided above the ring body and a square groove correspondingly provided below the inclined groove. By providing the inclined groove and the square groove, during installation, by pressing the upper cover above, the buckle position is gradually deformed along the inclined groove and guided. After the upper cover moves vertically for a certain distance, the buckle position is buckled into the square groove, thus completing the connection between the upper cover and the buckle groove and facilitating the assembly of the upper cover and the kettle body.

[0011] Preferably, the ring body is provided with an opening, and the ring body is provided with a locking part on both sides of the opening to adjust the radius of the ring body to lock the fitting connection part or release the locking of the connection part. The locking part includes a first through hole provided on one side of the opening, a nut setting position for facilitating the installation of the nut, a second through hole provided on the other side of the opening, and a bolt connection position for facilitating the installation of the bolt. The bolt passes through the first through hole and the second through hole, and the nut is used to cooperate with the bolt to reduce the opening, thereby reducing the radius of the ring body, so that the fitting surface inside the ring body continuously presses the sealing ring to achieve a sealing effect.

[0012] Preferably, a kettle lid buckle groove is provided on the inner side of the upper end of the upper cover, and the kettle lid buckle groove is connected to the outer side of the kettle lid. By connecting the kettle lid buckle groove and the kettle lid, a kettle lid is arranged inside the upper cover, thereby achieving weight balance, so that the overall electric kettle can avoid the problem of being easily knocked down due to its light weight and has the function of preventing tipping.

[0013] Preferably, a first glue layer is provided between the upper end of the sealing ring and the upper cover; a second glue layer is provided between the outer side of the ring body and the upper cover. A second glue layer is provided between the outer side of the ring body and the abutting part. The second glue layer makes up for a certain gap between the abutting part and the outer side of the ring body in the fitting state, improving the sealing effect between the upper cover and the ring body and thus avoiding the problem of water leakage; by providing the first glue layer and the second glue layer, the sealing effect is improved in multiple places, enhancing the sealing effect between the upper cover and the kettle body, so that the electric kettle can avoid the problem of water leakage under the load-bearing state. A first glue layer is provided between the transverse sealing end and the fitting part; by providing the first glue layer, the gap generated after the transverse sealing end and the upper cover are fitted is made up, improving the sealing effect between the upper cover and the sealing ring and thus avoiding the problem of water leakage.

[0014] Preferably, one end of the upper cover is connected to a handle, the handle is provided with a connection hole, the ring body is provided with a threaded connection hole coaxially arranged with the connection hole, and the connection hole and the threaded connection hole are fixedly connected by a screw. The upper cover and the ring body are fixedly connected by screwing the connection hole and the threaded connection hole, improving the connection stability. When installing the screw through the connection hole, after passing through the transverse sealing end, the end of the screw is connected to the threaded connection hole to realize the connection between the upper cover and the ring body; and in cooperation with the buckle position and the buckle groove, multiple fixing methods are used to improve the connection stability between the cover body and the kettle body, avoiding the problem that the upper cover comes off the kettle body during use due to the insecure connection position.

[0015] An electric kettle including the connection structure as described above.

[0016] This application has achieved beneficial technical effects:

[0017] In the utility model, the connecting part, the sealing ring, the locking ring, and the upper cover are arranged layer by layer, so that the kettle body can be stably connected to the upper cover through the sealing assembly, improving the connection and sealing effect between the kettle body and the upper cover, thereby avoiding the problem of water leakage at the sealing joint during daily use or under the load-bearing state. At the same time, the assembly is carried out in a layer-by-layer setting method, which is convenient for mass production and also conducive to repeated disassembly and assembly in the later stage. Description of the Drawings

[0018] Figure 1 The figure shows a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 2 The figure shows another partial cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 The figure shows an installation structural schematic diagram of the utility model;

[0021] Figure 4 The figure shows an assembly structural schematic diagram of the connection structure of the utility model;

[0022] Figure 5 The figure shows a top view structural schematic diagram of the utility model;

[0023] Figure 6 The figure shows Figure 5 a C-C cross-sectional structural schematic diagram of

[0024] Figure 7 The figure shows an exploded structural schematic diagram of the electric kettle.

[0025] Reference Signs

[0026] 1. Upper cover; 1-1. Kettle lid buckle groove; 1-2. Buckling position; 2. Sealing ring; 3-1. Second glue layer; 3-2. Fitting part; 4. Locking ring; 4-1. Buckle groove; 5. Kettle body; 5-1. Connecting part; 6. Screw; 7. Handle upper cover with wood grain effect; 8. Handle lower cover with wood grain effect; 9. Tightening screw for fastening handle; 10. Nut; 11. Screw; 40. Ring body; 41. Fitting surface; 411. First fitting surface; 412. Second fitting surface; 413. Intermediate fitting surface; 21. Vertical sealing end; 22. Horizontal sealing end; 4-11. Inclined groove; 4-12. Square groove; 401. Opening; 12. Locking part; 121. First through hole; 122. Nut setting position; 123. Second through hole; 124. Bolt connection position; 3-3. First glue layer; 1-3. Contact part; 14. Handle; 141. Connection hole; 402. Threaded connection hole; 5-11. Contact ring. Detailed implementation mode

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will describe the specific implementation modes of the present invention with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other implementation modes can also be obtained.

[0028] The following will introduce the technical solutions of the present invention in detail with specific embodiments.

[0029] The present invention relates to the technical field of household appliances, and more specifically, to a connecting device for glass and plastic parts under special conditions of an electric kettle.

[0030] All conventional electric kettles in the past have their own characteristics, and their production processes and structures in their respective fields are reasonable. However, when connecting the functions of each field, they will become full of contradictions and are not suitable for mass production. Among them, on the basis of a 360° glass panorama, a handle with a wood grain effect and a non-connected kettle lower cover, plus the kettle lid can prevent dust and has a certain anti-tipping function. The combination of these three states is exactly like this, and no structure and production process in the past can meet these three states at the same time.

[0031] All conventional electric kettles in the past have their own characteristics, and their production processes and structures in their respective fields are reasonable. However, when connecting the functions of each field, they will become full of contradictions and are not suitable for mass production. Among them, on the basis of a 360° glass panorama, a handle with a wood grain effect and a non-connected kettle lower cover, plus the kettle lid can prevent dust and has a certain anti-tipping function. The combination of these three states is exactly like this, and no structure and production process in the past can meet these three states at the same time.

[0032] At present on the market, there are two types of water kettles with a glass kettle body connected to a plastic part: One is the conventional type where the handle is connected to the plastic kettle body and the bottom cover of the kettle. Because the handle has a good load-bearing effect, the glass kettle body can be directly adhesively bonded to the plastic part with glue or sealed with silicone to achieve a good assembly. However, since the handle is involved in load-bearing, it often has a D-shaped design, and after assembly, the glass cannot achieve a 360° panoramic view.

[0033] The other type can achieve a 360° panoramic glass state. It is usually designed such that the glass is adhesively bonded to a stainless steel inner lining with glue, and then the plastic kettle body with a handle is directly and rigidly sleeved into the stainless steel inner lining. Currently on the market, the glass glue for bonding glass and stainless steel parts that meets food-grade testing is very firm and can meet the usage requirements. However, a kettle with a stainless steel inner lining cannot be equipped with a lid with an anti-tipping function. And the integrated handle is generally made of PP material, and the water transfer printing effect of making a wood grain is likely to peel off. The ideal substrate for water transfer printing is ABS material, but the ABS material itself is not heat-resistant.

[0034] In the present utility model, as Figures 1 to 7 shown, a connection structure includes a kettle body 5 and an upper cover 1. A connection part 5-1 is provided at the upper end of the kettle body 5. The upper cover 1 is connected to a sealing assembly. The sealing assembly is sleeved on the outer periphery of the connection part 5-1. The sealing assembly includes a sealing ring 2 that fits on the outer surface of the connection part 5-1 and abuts against the upper cover 1, and a locking ring 4 that keeps the sealing ring 2 fitting on the outer surface of the connection part 5-1 and is connected to the upper cover 1 on one side. Among them, the locking ring 4 is made of plastic. Through the layered arrangement of the connection part 5-1, the sealing ring 2, the locking ring 4, and the upper cover 1, the kettle body 5 can be stably connected to the upper cover 1 through the sealing assembly, improving the connection and sealing effect between the kettle body 5 and the upper cover 1, thereby avoiding the problem of water leakage at the sealed joint during daily use or under a load-bearing state. At the same time, by assembling in a layered manner, it is convenient for mass production and also facilitates repeated disassembly and assembly in the later stage.

[0035] The locking ring 4 includes a ring body 40 and a fitting surface 41 provided on the inner side of the ring body 40 and fitting with the sealing ring 2. The fitting surface 41 includes a first fitting surface 411, a second fitting surface 412 provided obliquely below the first fitting surface 411, and an intermediate fitting surface 413. Both ends of the intermediate fitting surface 413 are in contact with the lower end of the first fitting surface 411 and the upper end of the second fitting surface 412 respectively. The upper cover 1 is connected to one side of the ring body 40. Taking the center of the ring body 40 as the axis, the distances between the first fitting surface 411, the second fitting surface 412 and the axis gradually decrease along the radial direction, so that the fitting surface 41 forms a stepped shape. When the ring body 40 is in the locked state, the fitting surface 41 continuously applies force to press the sealing ring 2 to achieve a sealing effect. After the upper cover 1 is connected to the locking ring 4, by locking the locking ring 40, the fitting surface 41 is fitted with the sealing ring 2, improving the sealing effect between the sealing ring 2 and the connecting part 5-1, thus avoiding the problem of water leakage at the sealed joint during daily use or under a load-bearing state. At the same time, it is assembled by a layer-by-layer setting method, which is convenient for mass production.

[0036] The radius of the connecting part 5-1 gradually increases along the axial direction of the kettle body 5. The connecting part 5-1 is an inverted buckle inclined surface, and the end of the connecting part 5-1 is the largest opening, which prevents the sealing ring from coming off. At the same time, it cooperates with the stepped fitting surface 41, so that when the fitting surface 41 fits the sealing ring 2, it fits more closely with the connecting part 5-1, improving the sealing effect.

[0037] The sealing ring 2 includes a vertical sealing end 21 whose two sides are respectively in contact with the connecting part 5-1 and the fitting surface 41, and a horizontal sealing end 22 connected to the vertical sealing end 21. The upper end of the horizontal sealing end 22 is in contact with the inside of the upper cover 1, and the lower end of the horizontal sealing end 22 is in contact with the upper end of the ring body 40. The first fitting surface 411, the second fitting surface 412 and the intermediate fitting surface 413 are all in contact with the vertical sealing end 21, and the vertical sealing end 21 is formed into a stepped shape, thereby improving the sealing effect between the sealing ring 2 and the locking ring 4. After the upper cover 1 is connected to the locking ring 4, the upper cover 1 continuously contacts with the horizontal sealing end and applies force to press the horizontal sealing end 22 to achieve a sealing effect; thus avoiding the problem of water leakage at the sealed joint during daily use or under a load-bearing state.

[0038] A fitting part 3-2 is provided on the inner side of the upper cover 1, and the fitting part 3-2 is in contact with the upper end of the horizontal sealing end 22. The fitting part 3-2 and the upper end of the ring body 40 are in a flat state; when the upper cover 1 is connected to the ring body 40, the fitting part 3-2, the horizontal sealing end 22 and the ring body 40 are arranged in sequence and are fitted in multiple layers, improving the sealing degree between the upper cover 1 and the ring body 40, applying force to press the horizontal sealing end 22 to achieve a sealing effect, thus avoiding the problem of water leakage at the sealed joint during daily use or under a load-bearing state.

[0039] A buckle groove 4-1 is provided on the outer side of the ring body 40, and the upper cover 1 is provided with a buckle position 1-2 that engages with the buckle groove 4-1 to connect the upper cover 1 and the ring body 40. The buckle position 1-2 is arranged below the fitting part 3-2. A plurality of buckle grooves 4-1 and buckle positions 1-2 are correspondingly arranged. By correspondingly arranging the buckle groove 4-1 and the buckle position 1-2, the upper cover 1 and the ring body 40 are connected. This connection method facilitates the connection and installation between the upper cover 2 and the ring body 40. At the same time, after the buckle groove 4-1 and the buckle position 1-2 are connected, the fitting part 3-2 continuously applies force to the upper end of the lateral sealing end 22, thereby improving the sealing effect between the upper cover 1 and the sealing ring 2 and avoiding the problem of water leakage. The buckle groove 4-1 includes an inclined groove 4-11 provided above the ring body 40 and a square groove 4-12 correspondingly arranged below the inclined groove 4-11. By providing the inclined groove 4-11 and the square groove 4-12, during installation, by pressing the upper cover 1 located above, the buckle position 1-2 is gradually deformed along the inclined groove and guided. After the upper cover 1 moves vertically a certain distance, the buckle position 1-2 is buckled into the square groove 4-12, thereby completing the connection between the upper cover 1 and the buckle groove 4-1 and facilitating the assembly of the upper cover 1 and the kettle body 5.

[0040] The ring body 40 is provided with an opening 401, and the ring body 40 is provided with a locking part 12 on both sides of the opening 401 to adjust the radius of the ring body 40 to lock the fitting connection part 5-1 or release the locking of the connection part 5-1. The locking part 12 includes a first through hole 121 provided on one side of the opening 401, a nut setting position 122 for facilitating the installation of a nut, a second through hole 123 provided on the other side of the opening 401, and a bolt connection position 124 for facilitating the installation of a bolt. By passing a bolt through the first through hole 121 and the second through hole 123 and using a nut 10 to cooperate with the bolt 11, the opening is narrowed, so that the radius of the ring body 40 is reduced, thereby enabling the fitting surface 41 inside the ring body 40 to continuously press the sealing ring 2 to achieve a sealing effect.

[0041] An inner side of the upper end of the upper cover 1 is provided with a kettle lid buckle groove 1-1, and the kettle lid buckle groove 1-1 is connected to the outer side of the kettle lid 13. By connecting the kettle lid buckle groove 1-1 and the kettle lid 1, the kettle lid 13 is arranged inside the upper cover 1, thereby achieving weight balance, preventing the overall electric kettle from being easily knocked down due to its light weight, and enabling it to have an anti-tipping function.

[0042] A first glue layer 3-3 is provided between the upper end of the sealing ring 2 and the upper cover 1; a second glue layer 3-1 is provided between the outer side of the ring body 40 and the upper cover 1. A second glue layer 3-1 is provided between the outer side of the ring body 40 and the interference part 1-3. A certain gap between the interference part 1-3 and the outer side of the ring body 40 in a fitted state is filled by the second glue layer 3-1, thereby improving the sealing effect between the upper cover 1 and the ring body 40, thereby avoiding water leakage; the first glue layer 3-3 and the second glue layer 3-1 are provided to improve the sealing effect in multiple places, thereby improving the sealing effect between the upper cover 1 and the kettle body 5, thereby avoiding water leakage in the electric kettle under a load-bearing state. A first glue layer 3-3 is provided between the transverse sealing end 22 and the fitting part 3-2; by providing the first glue layer 3-3, the gap generated between the transverse sealing end 22 and the upper cover 1 after fitting is filled, thereby improving the sealing effect between the upper cover 1 and the sealing ring 2, thereby avoiding water leakage.

[0043] The first glue layer 3-3 and the second glue layer 3-1 are made of food-grade silicone glue.

[0044] One end of the upper cover 1 is connected to the handle 14, and the handle 14 is provided with a connecting hole 141. The ring body 40 is provided with a threaded hole 402 coaxially arranged with the connecting hole 141, and the connecting hole 141 and the threaded hole 402 are fixedly connected with the screw 6. The upper cover 1 is fixedly connected to the ring body 40 by connecting the connecting hole 141 and the threaded hole 402 with the screw 6, thereby improving the connection stability. When installing the screw 6 through the connecting hole 141, after passing through the transverse sealing end 22, the end of the screw 6 is connected to the threaded hole 402 to realize the connection between the upper cover 1 and the ring body 40; and in combination with the buckle position 1-2 and the buckle groove 4-1, a variety of fixing methods are used to improve the connection stability between the cover body 1 and the kettle body 5, and avoid the problem that the upper cover falls off the kettle body during use due to the loose connection position. The installation process is that after tightening the ring body 40 of the upper cover 1, apply food-grade silicone glue at the fitting part 3-2, and install it with a fixture and buckle it on the kettle body 5.

[0045] The handle 14 is fixedly connected to the upper handle cover 7 with a wood grain effect and the lower handle cover 8 with a wood grain effect by tightening the screws 9.

[0046] A resistance ring 5-11 is provided at the upper end of the connection part 5-1, and the resistance ring 5-11 is in contact with the sealing ring 2. The resistance ring 5-11 is in contact with the upper end of the vertical sealing end 21. The resistance ring 5-11 is used to resist and limit the vertical sealing end 21, so as to prevent the sealing ring 2 from shifting or coming out during the locking process of the ring body, thereby improving the sealing effect of the sealing ring 2 after connection.

[0047] An abutting portion 1-3 that abuts against the outer side of the ring body 40 is provided inside the cover body 1. The abutting portion 1-3 is provided below the fitting portion 3-2, and the buckling position 1-2 is provided on the abutting portion 1-3. By fitting the abutting portion 1-3 with the outer side of the ring body 40, the sealing effect between the upper cover 1 and the ring body 40 is further improved. Moreover, by fitting the abutting portion 1-3 with the ring body 40, the contact area between the upper cover 1 and the ring body 40 is increased, and the connection stability between the upper cover 1 and the ring body 40 is improved.

[0048] Wherein the kettle body 5 is a glass kettle body; the upper cover 1 is a plastic upper cover, and the handle 14 is a plastic handle.

[0049] An electric kettle including the connection structure as described above.

[0050] In order to solve the assembly structure of an electric kettle that simultaneously meets the three conditions of 360° panoramic glass, having a certain anti-tipping function, and having a handle with a wood-like effect that is not connected to the lower cover of the kettle, so that it can meet the requirements of use and mass production under these three conditions at the same time.

[0051] The connecting portion 5-1 with an inverted buckle slope provided on the glass kettle body is sleeved with a sealing ring 2, then sleeved with a locking ring 4 made of plastic, and then the locking ring 4 is tightened by stainless steel screws and stainless steel nuts. The locking ring 4 has 6 buckle grooves and a screw hole. The plastic upper cover 1 is coated with food-grade glass glue on the plane in contact with the sealing ring 2, and then sleeved on the plastic locking ring 4. The 6 buckling positions of the plastic upper cover 1 are buckled into the 6 buckle grooves of the upper locking ring. After buckling, the plastic upper cover 1 and the locking ring 4 are tightened with stainless steel screws, and then a handle with a wood grain effect based on ABS is inserted into the handle position of the plastic upper cover.

[0052] After the locking ring 4 is locked by stainless steel screws and stainless steel nuts, the side walls between the sealing ring 2, the connecting portion 5-1 and the locking ring 4 are in an interference state, thereby achieving the sealing effect of this part of the gap.

[0053] A layer of food-grade glass glue is applied to the fitting portion 3-2 compacted with the sealing ring 2, and then it is sleeved on the locking ring 4 and pressed tightly. The 6 buckling positions 1-2 of the upper cover 1 are inserted into the 6 buckle grooves 4-1 provided on the locking ring. Then, stainless steel screws are used to connect bolts through the first through hole 121 and the second through hole 123 of the plastic upper cover 1. Finally, the handle is installed.

[0054] The beneficial effects that can be achieved by the technical solution adopted by the present utility model are:

[0055] The plastic locking ring 4 is tightened by nuts 10 and bolts 11, not directly by self-tapping screws. The purpose is to prevent plastic thread slippage during mass production, ensure 100% tightening, and can be used multiple times if rework and disassembly are required. It has a high safety factor and is in line with environmental protection concepts.

[0056] In the actual production process, glass products and plastic parts will inevitably have defects, such as glass not reaching the standard circle, plastic parts surface shrinkage not meeting the requirements, etc. Under many unfavorable factors, it is difficult for the product to achieve the original design effect on the production line. However, if the materials that have passed the full inspection are mass-produced, it will be time-consuming and labor-intensive. Therefore, the role of food-grade glass glue here is to apply it on the plane of the plastic upper cover 1 and the sealing ring 2. After the upper cover 1 and the locking ring 4 are fully buckled and the screws are tightened, the glue will penetrate into the gap caused by the above unfavorable factors, forming a benign and unique sealing layer that meets the requirements of each kettle of this type, ensuring that the kettle will not leak after it is manufactured, greatly improving the qualified rate.

[0057] The 6 buckles of the plastic upper cover 1 engage the 6 buckle grooves of the plastic locking ring, and a stainless steel screw is tightened between the two, creating a very strong and reasonable force relationship. This structure has been proven to be able to withstand 10,000 hot and cold load-bearing life tests and still be able to be used normally without leaking.

[0058] The role of glue in this structure is not to bond plastic parts, because the structure with a single handle not connected to the plastic lower cover cannot be directly glued to the plastic upper cover 1 and the glass kettle body 5. Without the support of the one-piece handle, if this type of structure is directly glued to bear loads in a hot or cold state, the glass kettle body 5 and the plastic upper cover 1 will be at risk of falling off after a certain use cycle. Although the role of glue in this structure is not to bond plastic parts, it can completely bond the silicone. The glue adheres to the basis of the sealing ring 2, and will penetrate into the irregular gaps before drying, forming a first glue layer 3-3 and a second glue layer 3-1 that have a sealing effect, so that whether the kettle is cold or hot, even if the glue parts are subjected to force against each other when bearing load, there will be no leakage. The sealing treatment of applying glue makes the kettle of this structure reasonable and can be put on the market.

[0059] The joints between the glass and plastic parts are strong and durable, and the seal is watertight. Because the upper part of the kettle body does not have a stainless steel lining, in the all-plastic state, it can also be made with a lid buckle groove, which can meet the needs of assembling a kettle lid with a certain anti-dumping function.

[0060] Therefore, this structure can meet the long-term working use and mass production of comprehensive electric kettles with 360° glass panoramic view, wood grain effect handle and no connection to the lower cover of the kettle, and the kettle cover can be dustproof and has a certain anti-dumping function.

[0061] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0062] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

[0063] The above has elaborated in detail on the embodiments of a connection structure and an electric kettle provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be noted that for those of ordinary skill in the technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A connection structure, comprising a kettle body (5) and an upper cover (1), characterized in that: A connecting portion (5-1) is provided at the upper end of the kettle body (5); the upper cover (1) is connected to a sealing component, the sealing component is sleeved on the outer periphery of the connecting portion (5-1), and the sealing component comprises a sealing ring (2) which is in contact with the outer surface of the connecting portion (5-1) and contacts the upper cover (1); and a locking ring (4) which enables the sealing ring (2) to remain in contact with the outer surface of the connecting portion (5-1) and is connected to the upper cover (1) on one side.

2. The connection structure according to claim 1, characterized in that: The locking ring (4) comprises a ring body (40), a fitting surface (41) arranged on the inner side of the ring body (40) and fitted with the sealing ring (2), the fitting surface (41) comprising a first fitting surface (411), a second fitting surface (412) arranged obliquely below the first fitting surface (411), and an intermediate fitting surface (413), wherein two ends of the intermediate fitting surface (413) respectively contact with the lower end of the first fitting surface (411) and the upper end of the second fitting surface (412).

3. The connection structure according to claim 2, characterized in that: The sealing ring (2) comprises a vertical sealing end (21) which is respectively fitted with the connecting portion (5-1) and the fitting surface (41) on both sides, and a transverse sealing end (22) connected to the vertical sealing end (21); the upper end of the transverse sealing end (22) is fitted with the interior of the upper cover (1), and the lower end of the transverse sealing end (22) is fitted with the upper end of the ring body (40).

4. The connection structure according to claim 3, characterized in that: A fitting portion (3-2) is provided on the inner side of the upper cover (1), and the fitting portion (3-2) fits with the upper end of the transverse sealing end (22).

5. The connection structure according to claim 2, characterized in that: A buckle groove (4-1) is arranged on the outer side of the ring body (40), and a buckle position (1-2) is arranged on the upper cover (1) to buckle with the buckle groove (4-1) so as to connect the upper cover (1) and the ring body (40).

6. The connection structure according to claim 2, characterized in that: The ring body (40) is provided with an opening (401), and the ring body (40) is provided with locking parts (12) on both sides of the opening (401) for adjusting the radius of the ring body (40) to lock the fitting connection part (5-1) or release the locking connection part (5-1).

7. The connection structure according to claim 1, characterized in that: A pot lid buckle groove (1-1) is arranged on the inner side of the upper end of the upper cover (1), and the pot lid buckle groove (1-1) is connected to the outer side of the pot lid (13).

8. The connection structure according to claim 2, characterized in that: A first glue layer (3-3) is provided between the upper end of the sealing ring (2) and the upper cover (1); and a second glue layer (3-1) is provided between the outer side of the ring body (40) and the upper cover (1).

9. The connection structure according to claim 2, characterized in that: One end of the upper cover (1) is connected to a handle (14), the handle (14) is provided with a connecting hole (141), the ring body (40) is provided with a thread connection hole (402) coaxially arranged with the connecting hole (141), and the connecting hole (141) and the thread connection hole (402) are fixedly connected by a screw (6).

10. An electric kettle comprising the connection structure according to any one of claims 1 to 9.

Images