Hot water cup with easy-open top lid

Abstract

This utility model discloses a hot water cup with a conveniently openable top cover, relating to the field of hot water cup technology. The hot water cup with a conveniently openable top cover includes a shell, a water tank, and a top cover. The top cover is positioned over the opening of the water tank for opening or closing the opening. The connection between the top cover and the water tank is a snap-fit ​​connection. When the opening needs to be opened, the user simply needs to release the snap-fit ​​between the top cover and the water tank, thus quickly removing the top cover from the water tank and opening the opening. Compared to the traditional threaded connection, the user does not need to twist the top cover to a certain angle relative to the shell, making it easier and faster for the user to open the opening, significantly improving user convenience.

Description

Technical Field

[0001] This utility model relates to the field of boiling water cup technology, and in particular to a boiling water cup with a conveniently openable top cover. Background Technology

[0002] A typical hot water cup consists of a shell, a water tank, and a lid. To ensure the sealing performance and connection stability of the water tank, the lid is usually installed on the shell using a threaded connection. This improves the stability of the lid installation and the sealing performance of the water tank. However, the threaded connection means that when adding or removing water, the user needs to twist the lid to a certain angle before removing it from the opening at the top of the water tank. This makes it difficult to open the lid quickly, causing inconvenience and reducing the user experience. This situation is further exacerbated in scenarios where frequent water addition and removal are required. Utility Model Content

[0003] The main purpose of this invention is to provide a hot water cup with a conveniently openable top cover, aiming to improve the problem that the current hot water cup top cover is inconvenient to disassemble and assemble, thus reducing the user experience.

[0004] To achieve the above objectives, this utility model proposes a hot water cup with a conveniently openable top lid, comprising:

[0005] case;

[0006] A water tank is installed inside the housing, and the top of the water tank has an opening that communicates with the outside in the height direction of the housing;

[0007] A top cover, disposed over the opening, and snap-fitted to the water tank, the top cover being used to open or close the opening; and

[0008] A heating element is disposed inside the housing, and the outer peripheral wall of the water tank is at least partially attached to the heating element.

[0009] In one embodiment, the top cover includes:

[0010] First cover; and

[0011] A second cover is connected to the bottom of the first cover in the height direction of the shell; the outer diameter of the first cover is larger than the outer diameter of the second cover, so as to form an abutment surface at the connection between the first cover and the second cover;

[0012] The second cover is inserted into the water tank to a preset depth and the top cover is rotated to a preset position, so that the top cover is snapped into the water tank and the contact surface is pressed against the top of the shell.

[0013] In one embodiment, the inner circumferential side of the water tank has a snap-fit ​​protrusion extending toward the axial centerline of the water tank;

[0014] The outer peripheral side of the second cover is formed with a snap-fit ​​groove, and the bottom of the snap-fit ​​groove is closed in the height direction of the housing so that the bottom of the snap-fit ​​groove forms a stop.

[0015] The second cover is inserted into the water tank to a preset depth and the top cover is rotated to a preset position, so that the snap-fit ​​protrusion snaps into the snap-fit ​​groove and the snap-fit ​​protrusion abuts against the stop part, for snapping the top cover into the water tank.

[0016] In one embodiment, the outer peripheral side of the second cover and the inner peripheral side of the water tank are spaced apart to form an annular gap between them, and the snap-fit ​​groove is formed in the annular gap;

[0017] The outer periphery of the second cover has a first rib and a second rib that are spaced apart around the axial center line of the top cover. The first rib and the second rib both extend along the height direction of the shell, and the space between the first rib and the second rib forms the snap-fit ​​groove.

[0018] A third rib is provided on the outer peripheral surface of the second cover body located below the first rib and the second rib, and the two opposite ends of the third rib in the length direction are respectively connected to the bottom of the first rib and the second rib;

[0019] The third rib constitutes the stop portion.

[0020] In one embodiment, the third rib has a first end and a second end that are disposed opposite each other in the length extension direction, and in the height direction of the housing, the first end is located above the second end, so that the third rib is inclinedly disposed on the outer peripheral surface of the second cover.

[0021] The second end extends along the outer peripheral surface of the second cover and in a direction away from the first end to form a fourth rib, the inclination angle of the fourth rib being the same as that of the third rib.

[0022] In one embodiment, an auxiliary block is provided in the snap-fit ​​groove located above the third rib, and the snap-fit ​​protrusion snaps into the snap-fit ​​groove such that at least a portion of the snap-fit ​​protrusion presses against the auxiliary block.

[0023] In one embodiment, the top cover further includes a sealing ring, which is disposed at the bottom of the second cover and is snap-fitted to the second cover.

[0024] In one embodiment, the outer peripheral side of the sealing ring has a protrusion extending toward the axial centerline of the top cover;

[0025] The second cover is inserted into the water tank, so that the protrusion is pressed against and fits against the inner circumference of the water tank.

[0026] In one embodiment, the inner circumferential side of the sealing ring has an annular protrusion extending toward the axial centerline of the top cover, and the outer circumferential side of the second cover has an annular groove that engages with the annular protrusion.

[0027] The annular protrusion engages with the annular groove to secure the sealing ring to the second cover.

[0028] In one embodiment, the top cover further includes an exhaust duct, which passes through the first cover body and the second cover body in the height direction of the housing;

[0029] The top cover is provided over the opening, and the exhaust duct is used to connect the outside world with the space inside the water tank.

[0030] This utility model relates to a water cup with a conveniently openable top cover, comprising a shell, a water tank, and a top cover. The top cover is positioned over the opening of the water tank and is used to open or close the opening. The connection between the top cover and the water tank is a snap-fit ​​connection. When it is necessary to open the opening, the user only needs to release the snap-fit ​​between the top cover and the water tank, thereby quickly removing the top cover from the water tank and opening the opening. Compared to the traditional threaded connection method, the user does not need to twist the top cover to a certain angle relative to the shell, which helps the user open the opening more easily and quickly, thus significantly improving the user's convenience. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the overall structure of the hot water cup with a conveniently openable top cover according to this utility model.

[0033] Figure 2 This is a schematic diagram showing the separation of the top cover and the shell of the water cup with a convenient opening top cover according to this utility model;

[0034] Figure 3This is a cross-sectional view of the water cup with a conveniently openable top cover of this utility model after removing the top cover.

[0035] Figure 4 This is a schematic diagram showing the fitting relationship between the top cover and the shell of the water cup with a convenient opening top cover according to this utility model;

[0036] Figure 5 This utility model relates to a water cup with a conveniently openable top lid. Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0037] Figure 6 This utility model relates to a water cup with a conveniently openable top lid. Figure 4 Schematic diagram of the AA section structure;

[0038] Figure 7 This utility model relates to a water cup with a conveniently openable top lid. Figure 6 Enlarged schematic diagram of the structure at point B;

[0039] Figure 8 This is a schematic diagram of the structure of the top cover of the boiling water cup with a convenient opening mechanism according to this utility model;

[0040] Figure 9 This is a cross-sectional view of the top cover of the water cup with a convenient opening mechanism according to this utility model.

[0041] Figure 10 This is an exploded view of the structure of the hot water cup lid with a convenient opening lid according to this utility model;

[0042] Figure 11 This is a schematic diagram showing the connection relationship between the first and second lids of the water cup with a convenient opening top cover according to this utility model.

[0043] Explanation of icon numbers:

[0044] 1. Shell; 11. Outer shell; 12. Reinforcing frame; 13. Top cover;

[0045] 2. Water tank; 21. Opening; 22. Snap-fit ​​protrusion;

[0046] 3. Top cover; 31. First cover body; 311. Abutting surface; 32. Second cover body; 321. Snap-fit ​​groove; 322. First rib; 323. Second rib; 324. Third rib; 3241. First end; 3242. Second end; 325. Fourth rib; 326. Annular snap-fit ​​groove; 327. Recessed hole; 328. Auxiliary block; 33. Sealing ring; 331. Protrusion; 332. Annular protrusion; 333. First hole; 34. Upper cover body; 341. Air hole;

[0047] 4. Heating element; 5. Annular gap; 6. Exhaust duct.

[0048] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] 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 scope of protection of the present utility model.

[0050] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0051] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0052] A typical hot water cup consists of a shell, a water tank, and a lid. To ensure the sealing performance and connection stability of the water tank, the lid is usually installed on the shell using a threaded connection. This improves the stability of the lid installation and the sealing performance of the water tank. However, the threaded connection means that when adding or removing water, the user needs to twist the lid to a certain angle before removing it from the opening at the top of the water tank. This makes it difficult to open the lid quickly, causing inconvenience and reducing the user experience. This situation is further exacerbated in scenarios where frequent water addition and removal are required.

[0053] Based on this, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown in the figure, this application embodiment provides a hot water cup with a conveniently openable top cover, including a shell 1, a water tank 2, a top cover 3, and a heating element 4; wherein, the water tank 2 is fixedly installed inside the shell 1, and the top of the water tank 2 has an opening 21 communicating with the outside in the height direction of the shell 1; the top cover 3 is placed on the opening 21 and is used to open or close the opening 21, thereby allowing the user to add water or take water; when the top cover 3 is placed on the opening 21, the top cover 3 and the water tank 2 are snap-fitted together, thereby fixing the top cover 3 relative to the water tank 2, ensuring the stability and firmness of the installation of the top cover 3, thereby improving the sealing performance of the water tank 2; the heating element 4 is disposed inside the shell 1, and the outer peripheral wall of the water tank 2 is at least partially attached to the heating element 4, thereby transferring the heat generated by the heating element 4 during operation to the water stored inside the water tank 2 for heating the water.

[0054] In this embodiment, the top cover 3 is installed over the opening 21 at the upper end of the water tank 2 to seal the opening 21 at the upper end of the water tank 2. At the same time, the top cover 3 and the water tank 2 are connected by a snap-fit. When the user needs to open the top cover 3, the user only needs to release the snap-fit ​​between the top cover 3 and the water tank 2 to quickly remove the top cover 3 from the opening 21 at the upper end of the water tank 2. Compared with the traditional top cover 3 using a threaded connection, this eliminates the intermediate process of needing to screw the top cover 3 to a certain angle to open the cover, which can reduce the time spent opening the top cover 3 and improve the convenience of use for the user.

[0055] It is understood that the heating element 4 can be a ceramic heating element. A socket for electrical connection to the ceramic heating element is provided at a suitable position inside the housing 1. Power is supplied to the ceramic heating element by plugging the socket into an external power connector, thereby heating the water in the water tank 2. Specifically, the ceramic heating element includes a ceramic substrate with a heating wire on it. The ceramic substrate can be fixed to the bottom wall of the water tank 2 and in close contact with the bottom wall of the water tank 2. When the electrical circuit of the heating wire is connected to an external power source, the heating wire heats up and transfers the heat through the wall of the water tank 2 to the water in the water tank 2, thereby realizing the heating process. It is understood that the material of the water tank 2 needs to be selected with good thermal conductivity and strong corrosion resistance, such as aluminum alloy or stainless steel. Good thermal conductivity can quickly transfer the heat generated by the heating wire to the water, resulting in high heating efficiency. Strong corrosion resistance can provide good resistance to minerals and chemicals in the water, resulting in a long service life.

[0056] Understandably, the ceramic heating element can be fixed to the bottom wall of the water tank 2 using adhesive or fasteners. When using adhesive, a curing silicone rubber can be used to bond it to the bottom wall of the water tank 2. Curing silicone rubber has good thermal conductivity and can remain stable at high temperatures. At the same time, curing silicone rubber has good electrical insulation properties, which can prevent leakage and improve safety. Understandably, before bonding, the bottom wall of the water tank 2 and the surface of the ceramic heating element need to be thoroughly cleaned to remove oil, dust and other impurities. Alcohol or a special cleaning agent can be used for cleaning.

[0057] Furthermore, in this embodiment, the heating wire can be a DC heating wire or an AC heating wire, and the housing 1 is respectively provided with a DC socket electrically connected to the DC heating wire and an AC socket electrically connected to the AC heating wire, and connected to an external power connector through their respective sockets. This allows the hot water cup with a conveniently openable top cover to be used with a 220V household AC power supply or a 12-24V DC vehicle power supply, thereby significantly improving the applicability of the hot water cup with a conveniently openable top cover.

[0058] Reference Figure 4 , Figure 8 , Figure 11 As shown, in one embodiment of this application, the top cover 3 includes a first cover body 31 and a second cover body 32; wherein, the second cover body 32 is connected to the bottom of the first cover body 31, and the radial dimension of the first cover body 31 is larger than the radial dimension of the second cover body 32, thereby forming an abutment surface 311 at the connection between the first cover body 31 and the second cover body 32; as shown Figure 4 As shown, when the top cover 3 is placed at the opening 21, the second cover 32 is inserted into the water tank 2 and engages with the inner wall of the water tank 2. At the same time, the contact surface 311 is pressed against the top of the housing 1, thereby achieving the effect of engaging and fixing the top cover 3.

[0059] In this embodiment, when the top cover 3 is snapped into the water tank 2, the second cover 32 is first inserted into the water tank 2 through the opening 21 at the upper end of the water tank 2 to a preset depth. Then, the top cover 3 is rotated and the second cover 32 is driven to rotate to a preset position in the water tank 2, so that the second cover 32 is snapped into the water tank 2. At the same time, the abutting surface 311 formed at the connection between the first cover 31 and the second cover 32 is pressed against the top of the shell 1, thereby achieving the snapping and fixing effect of the top cover 3.

[0060] In this embodiment, the top cover 3 and the water tank 2 are locked together by the snap-fit ​​between the second cover 32 and the inner wall of the water tank 2, thereby preventing the top cover 3 from being pulled out of the water tank 2. At the same time, the abutting surface 311 formed at the connection between the first cover 31 and the second cover 32 is pressed against the top of the shell 1 to limit the depth of the top cover 3 inserted into the water tank 2, thereby achieving a better positioning effect for the top cover 3.

[0061] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, the housing 1 includes an outer shell 11, a reinforcing frame 12 fixedly disposed within the outer shell 11, and an upper end cover 13 covering the top of the outer shell 11 and the reinforcing frame 12. The water tank 2 is fixedly installed within the reinforcing frame 12. The upper end cover 13 covers the upper surface of the outer shell 11 and the reinforcing frame 12 and is fixedly connected to the outer shell 11. The reinforcing frame 12 and the outer shell 11, as well as the upper end cover 13 and the outer shell 11, can be connected using fasteners.

[0062] Understandably, the upper cover 13 has a through hole to allow the opening 21 at the top of the water tank 2 to communicate with the outside through the through hole, and to allow the second cover 32 to be inserted into the water tank 2 through the through hole; Figure 4 As shown, when the top cover 3 and the water tank 2 are connected by a snap-fit, the abutting surface 311 formed at the connection between the first cover body 31 and the second cover body 32 presses against the upper surface of the upper cover 13, thereby blocking and limiting the top cover 3.

[0063] Reference Figure 2 , Figure 3 , Figure 6 , Figure 7 As shown, in one embodiment of this application, the area on the inner circumference side of the water tank 2 near the opening 21 has a snap-fit ​​protrusion 22 extending toward the axial centerline of the water tank 2; that is, the snap-fit ​​protrusion 22 faces toward the inner side of the water tank 2 and protrudes from the inner wall of the water tank 2. Figure 4 , Figure 8 As shown, a snap-fit ​​groove 321 is formed on the outer periphery of the second cover 32. The snap-fit ​​groove 321 extends along the height direction of the housing 1, and the bottom of the snap-fit ​​groove 321 is closed in the height direction of the housing 1 so that the bottom of the snap-fit ​​groove 321 forms a stop portion.

[0064] In this embodiment, as Figure 6 , Figure 7As shown, when the top cover 3 needs to be snapped into the water tank 2, the user holds the top cover 3 and inserts the second cover 32 into the water tank 2 to a preset depth, that is, the depth to which the top cover 3 is inserted into the water tank 2 when the abutment surface 311 formed at the connection between the first cover 31 and the second cover 32 presses against the top of the housing 1; then the top cover 3 is rotated and the second cover 32 is simultaneously driven to rotate within the water tank 2, so that when the snap-fit ​​groove 321 formed on the outer periphery of the second cover 32 rotates to the position of the snap-fit ​​groove 321 on the outer periphery of the second cover 32, the snap-fit ​​groove 321 is inserted into the water tank 2. When the snap-fit ​​protrusion 22 on the inner circumferential sidewall of the water tank 2 is positioned, the snap-fit ​​protrusion 22 snaps into the snap-fit ​​groove 321, thereby restricting the circumferential rotation of the top cover 3 within the water tank 2. At the same time, in the height direction of the housing 1, the bottom of the snap-fit ​​protrusion 22 just presses against the aforementioned stop portion, and through the pressing fit between the pressing surface and the top of the housing 1, the top cover 3 is limited and fixed in the height direction of the housing 1. This ensures a reliable connection and fixation between the top cover 3 and the water tank 2.

[0065] It should be noted that when the user inserts the top cover 3 into the water tank 2, the position of the snap-fit ​​groove 321 on the top cover 3 relative to the snap-fit ​​protrusion 22 on the inner wall of the water tank 2 needs to be adjusted in advance. That is, before inserting the second cover 32 into the water tank 2, the positions of the snap-fit ​​groove 321 and the snap-fit ​​protrusion 22 need to be offset in the height direction of the housing 1 to ensure that the second cover 32 can be smoothly inserted into the water tank 2 to the preset depth. After the second cover 32 is inserted into the water tank 2 to the preset depth, the top cover 3 is rotated and the second cover 32 is driven to rotate synchronously to the preset position. The preset position is that in the height direction of the housing 1, the snap-fit ​​protrusion 22 and the snap-fit ​​groove 321 are aligned, thereby realizing that the snap-fit ​​protrusion 22 is snapped into the snap-fit ​​groove 321 and restricting the circumferential rotation of the second cover 32 in the water tank 2.

[0066] In this embodiment, the depth of the top cover 3 inserted into the water tank 2 is limited by the abutment surface 311 formed at the connection between the first cover 31 and the second cover 32. When the abutment surface 311 abuts against the top of the housing 1, the depth of the top cover 3 inserted into the water tank 2 is such that the bottom of the locking protrusion 22 and the upper surface of the stop are on the same horizontal plane. This ensures that when the second cover 32 is driven to rotate to a preset position in the water tank 2, the bottom of the locking protrusion 22 can abut against the upper surface of the stop (e.g., Figure 5 As shown), the top cover 3 is limited and fixed in the height direction of the housing 1 by the pressing fit between the abutting surface 311 and the top of the housing 1, the pressing fit between the bottom of the snap-fit ​​protrusion 22 and the stop part.

[0067] In this embodiment, as Figure 6 , Figure 7As shown, there can be multiple snap-fit ​​protrusions 22, and these multiple snap-fit ​​protrusions 22 are arranged at equal intervals around the inner peripheral sidewall of the water tank 2. The number of snap-fit ​​grooves 321 should also match the snap-fit ​​protrusions 22, and the snap-fit ​​grooves 321 are also arranged at equal intervals around the outer peripheral side of the second cover 32. This achieves a more secure and stable positioning effect for the top cover 3 through the snap-fit ​​cooperation of multiple snap-fit ​​grooves 321 and snap-fit ​​protrusions 22.

[0068] Understandably, when the user inserts the top cover 3 into the water tank 2, the snap-fit ​​protrusions 22 and the snap-fit ​​grooves should be staggered in the height direction of the housing 1. Then, the top cover 3 should be inserted into the water tank 2 until it reaches the preset depth, that is, when the contact surface 311 presses against the top of the housing 1, the top cover 3 should be rotated and the second cover 32 should be rotated simultaneously. Since the multiple snap-fit ​​grooves 321 are arranged at equal intervals around the outer periphery of the second cover 32 and the multiple snap-fit ​​protrusions 22 are arranged at equal intervals around the inner periphery of the water tank 2, when the second cover 32 rotates to the preset position in the water tank 2, the multiple cooperating snap-fit ​​protrusions 22 can be snapped into the corresponding snap-fit ​​grooves 321 at the same time, thereby realizing the snap-fit ​​positioning of the top cover 3.

[0069] In this embodiment, the shape of the snap-fit ​​protrusion 22 can be arc-shaped, which makes it easier for the snap-fit ​​protrusion 22 to snap into the corresponding snap-fit ​​groove 321.

[0070] Reference Figure 6 , Figure 7 As shown, in one embodiment of this application, the outer periphery of the second cover 32 and the inner periphery of the water tank 2 are spaced apart to form an annular gap 5 between them, and a snap-fit ​​groove 321 is formed in the annular gap 5; as Figure 4 , Figure 8 , Figure 11 As shown, the outer periphery of the second cover 32 has a first rib 322 and a second rib 323 spaced around the axial center line of the top cover 3, and both the first rib 322 and the second rib 323 extend along the height direction of the shell 1. The space between the first rib 322 and the second rib 323 forms the aforementioned snap-fit ​​groove 321. A third rib 324 is provided on the outer periphery of the second cover 32 located below the first rib 322 and the second rib 323. The two ends of the length direction of the third rib 324 are respectively connected to the bottom of the first rib 322 and the second rib 323, thereby making the space enclosed by the first rib 322, the second rib 323 and the third rib 324 form the snap-fit ​​groove 321, and the third rib 324 forms the aforementioned stop portion.

[0071] In this embodiment, when the user inserts the second cover 32 into the water tank 2 to a preset depth and rotates the top cover 3, the user will clearly feel resistance when the snap-fit ​​protrusion 22 on the inner wall of the water tank 2 contacts the first rib 322 or the second rib 323. After continuing to rotate the top cover 3 by a certain angle, the snap-fit ​​protrusion 22 will engage with the snap-fit ​​groove 321 between the first rib 322 and the second rib 323. It is understood that when the snap-fit ​​protrusion 22 contacts the first rib 322 or the second rib 323, a squeezing effect will occur between them; that is, the snap-fit ​​protrusion 22 will force the first rib 322... The second rib 323 may undergo a certain degree of compression deformation, allowing the snap-fit ​​protrusion 22 to pass over the first rib 322 or the second rib 323 and enter the snap-fit ​​groove 321 between them. This prevents the top cover 3 from circumferentially moving within the water tank 2 under the constraint of the first rib 322 and the second rib 323. At the same time, the bottom of the snap-fit ​​protrusion 22 is in contact with the upper surface of the stop (i.e., the third rib 324), and the contact surface 311 is pressed against the top of the housing 1, thereby restricting and positioning the top cover 3 along the height direction of the housing 1, thus achieving a reliable snap-fit ​​between the top cover 3 and the water tank 2.

[0072] In this embodiment, the length of the protrusion of one of the first rib 322 and the second rib 323 along the radial direction of the second cover 32 can be set to be larger, such as... Figure 7 As shown, in this embodiment, the length of the first rib 322 protruding radially along the second cover 32 is set to be relatively large. The first rib 322 is almost in contact with the inner wall of the water tank 2. At this time, even if the first rib 322 is squeezed by the locking protrusion 22, the locking protrusion 22 cannot pass over the first rib 322. This setting ensures that the locking protrusion 22 can only enter the locking groove 321 from the second rib 323, and achieves circumferential locking and limiting of the top cover 3. This reduces the probability that the locking protrusion 22 will be pulled out of the locking groove 321 due to external force on the top cover 3. Because at this time, the locking protrusion 22 can only be pulled out of the locking groove 321 from the second rib 323 side. When the external force on the top cover 3 forces the top cover 3 to move along the second rib 323, the locking protrusion 22 can be pulled out of the locking groove 321. Figure 7 When the top cover 3 tends to rotate clockwise, the first rib 322 blocks the rotation of the top cover 3 relative to the water tank 2, thereby improving the positioning effect of the top cover 3 and reducing the occurrence of the top cover 3 being dislodged from the locking groove 321 due to external force, thus preventing the top cover 3 from failing to lock.

[0073] In this embodiment, the first rib 322, the second rib 323, and the third rib 324 are all arranged to extend along the outer peripheral surface of the second cover 32, that is, the first rib 322, the second rib 323, and the third rib 324 are all in close contact with the outer peripheral surface of the second cover 32.

[0074] It is understandable that, such as Figure 6 , Figure 7 As shown, when it is necessary to remove the top cover 3 from the water tank 2, the user needs to follow the path shown. Figure 6 The top cover 3 can be rotated counterclockwise as shown to remove the snap-fit ​​protrusion 22 from the snap-fit ​​groove 321 (release the snap-fit ​​and positioning of the top cover 3), thereby removing the top cover 3 from the water tank 2.

[0075] Reference Figure 8 As shown, in one embodiment of this application, the third rib 324 has a first end 3241 and a second end 3242 arranged opposite to each other in the length extension direction. In the height direction of the housing 1, the first end 3241 is located above the second end 3242, so that the third rib 324 is inclinedly disposed on the outer peripheral surface of the second cover 32; that is, the bottom of the first end 3241 is connected to the bottom of the first rib 322, and the bottom of the second end 3242 is connected to the bottom of the second rib 323, thereby closing the bottom of the snap-fit ​​groove 321 and forming the aforementioned stop portion with the third rib 324. Figure 4 , Figure 8 , Figure 11 As shown, a fourth rib 325 is formed at the second end 3242, extending along the outer peripheral surface of the second cover 32 and in a direction away from the first end 3241. The inclination angle of the fourth rib 325 is the same as that of the third rib 324.

[0076] In this embodiment, the fourth rib 325 is provided so that when the user inserts the top cover 3 into the water tank 2 to a certain depth (at this time, the contact surface 311 has not yet pressed against the top of the shell 1), the top cover 3 drives the second cover 32 to rotate in the water tank 2, that is, it drives the fourth rib 325 to rotate towards the snap-fit ​​protrusion 22, so that during the rotation, the upper surface of the snap-fit ​​protrusion 22 and the fourth rib 325 come into contact. As the user continues to rotate, the second cover 32 will be driven to move downward in the water tank 2 under the combined action of the snap-fit ​​protrusion 22 and the fourth rib 325, so that under the guidance of the fourth rib 325, the snap-fit ​​protrusion 22 passes over the second rib 323 and enters the snap-fit ​​groove 321 and is snapped in the snap-fit ​​groove 321. At this time, the contact surface 311 formed at the connection of the first cover 31 and the second cover 32 is pressed against the top of the shell 1.

[0077] In this embodiment, the fourth rib 325 allows the user to insert the top cover 3 into the water tank 2 without continuously applying downward pressure. The user simply holds the top cover 3 and initially inserts the second cover 32 into the water tank 2 to a certain depth, then rotates the top cover 3. With the cooperation of the fourth rib 325 and the locking protrusion 22, the second cover 32 is automatically driven downwards within the water tank 2, allowing the top cover 3 to be inserted to a preset depth within the water tank 2, and the locking protrusion 22 to engage with the locking groove 321. The user then rotates the top cover 3 and, through the fourth rib 325 and the fourth rib 325, inserts the second cover 32 into the water tank 2 to a predetermined depth, and the locking protrusion 22 engages with the locking groove 321. When the second cover 32 is driven to move downward in the water tank 2 by the cooperation of the rib 325 and the snap-fit ​​protrusion 22, the user only applies a force in the horizontal direction to drive the top cover 3 to rotate. That is, the top cover 3 moves downward relative to the water tank 2 while rotating. Compared with the user directly pressing the top cover 3 downward and moving the second cover 32 to the preset depth position in the water tank 2, this method will reduce the force applied by the user to a certain extent, which means that the user can install or remove the top cover 3 with less effort.

[0078] Reference Figure 8 As shown, in one embodiment of this application, an auxiliary block 328 is provided in the snap-fit ​​groove 321 located above the third rib 324. The snap-fit ​​protrusion 22 snaps into the snap-fit ​​groove 321, so that at least a portion of the snap-fit ​​protrusion 22 presses against the auxiliary block 328. The auxiliary block 328 can be connected to the upper surface of the third rib 324, so that when the snap-fit ​​protrusion 22 snaps into the snap-fit ​​groove 321, the higher part of the snap-fit ​​protrusion 22 can press against the auxiliary block 328, thereby improving the snap-fit ​​positioning effect of the snap-fit ​​protrusion 22.

[0079] It is understandable that, such as Figure 5 As shown, when the snap-fit ​​protrusion 22 is snapped into the snap-fit ​​groove 321, the lower part of the snap-fit ​​protrusion 22 is in contact with the upper surface of the third rib 324, while the upper part of the snap-fit ​​protrusion 22 is in contact with the auxiliary block 328, thereby improving the snap-fit ​​positioning effect of the snap-fit ​​protrusion 22.

[0080] Reference Figure 8 As shown, in one embodiment of this application, the top cover 3 further includes a sealing ring 33, which is disposed at the bottom of the second cover 32 and is snapped into connection with the second cover 32. The sealing ring 33 is provided so that when the second cover 32 is inserted into the water tank 2, it is pressed against and adhered to the inner peripheral side wall of the water tank 2 through the sealing ring 33, thereby improving the sealing performance of the top cover 3.

[0081] In this embodiment, the sealing ring 33 can be made of silicone, and the sealing ring 33 is snapped together with the bottom of the second cover 32. If the sealing ring 33 is damaged during subsequent use, the damaged sealing ring 33 can be removed from the second cover 32 and a new sealing ring 33 can be replaced to continue use.

[0082] Reference Figure 9 , Figure 10 As shown in one embodiment of this application, the outer periphery of the sealing ring 33 has a protrusion 331 extending away from the axial centerline of the top cover 3. Multiple protrusions 331 can be provided, and the multiple protrusions 331 are spaced apart in the height direction of the sealing ring 33. This ensures that when the second cover 32 is inserted into the water tank 2, the protrusion 331 is squeezed by the inner wall of the water tank 2 and undergoes appropriate deformation. While ensuring good sealing performance, it also avoids excessive frictional resistance between the sealing ring 33 and the inner wall of the water tank 2 when the top cover 3 is moved outward, which would require the user to use a large force to remove the top cover 3 from the water tank 2.

[0083] In this embodiment, as Figure 9 As shown, the radial dimension of the sealing ring 33 body can be the same as the radial dimension of the second cover 32. Multiple protrusions 331 are set outward from the sealing ring 33 body. Thus, the sealing effect is achieved by the multiple protrusions 331 pressing against the inner wall of the water tank 2. At the same time, the multiple spaced protrusions 331 pressing against the inner wall of the water tank 2 can reduce the contact area between the sealing ring 33 and the inner wall of the water tank 2 compared to the outer periphery of the sealing ring 33 directly pressing against the inner wall of the water tank 2. This reduces the frictional resistance when the second cover 32 moves in the water tank 2.

[0084] Reference Figure 9 , Figure 10 , Figure 11 As shown, in one embodiment of this application, the inner circumferential side of the sealing ring 33 has an annular protrusion 332 extending toward the axial centerline of the top cover 3, and the outer circumferential side of the second cover 32 has an annular groove 326 that engages with the annular protrusion 332. Figure 9 As shown, the annular protrusion 332 is engaged in the annular groove 326 to engage and connect the sealing ring 33 with the second cover 32.

[0085] Reference Figure 8 , Figure 9 , Figure 10 , Figure 11As shown in one embodiment of this application, the top cover 3 further includes an exhaust duct 6. In the height direction of the housing 1, the exhaust duct 6 passes through the first cover body 31 and the second cover body 32, and both ends of the exhaust duct 6 in the height direction of the housing 1 are connected to the outside. This enables the environment inside the water tank 2 to be connected to the outside environment through the exhaust duct 6 when the top cover 3 is closed on the opening 21. This is used to discharge the steam inside the water tank 2 during the heating process, prevent the pressure inside the water tank 2 from being too high, and thus ensure the safe operation of the equipment.

[0086] In this embodiment, as Figure 10 As shown, the bottom of the sealing ring 33 is provided with a first hole 333, such as Figure 11 As shown, the bottom of the second cover 32 is provided with a recess 327, such as... Figure 9 As shown, when the sealing ring 33 is snapped onto the bottom of the second cover 32, a channel for airflow is formed between the recess 327 and the bottom of the sealing ring 33. The bottom of the exhaust duct 6 has a hole (not shown in the figure) communicating with the recess 327. The top of the first cover 31 is provided with an air hole 341 communicating with the exhaust duct 6. Thus, when boiling water, the steam in the water tank 2 enters the exhaust duct 6 through the channel formed by the first hole 333 at the bottom of the sealing ring 33, the recess 327 and the sealing ring 33, and is discharged outward through the air hole 341 at the top of the first cover 31.

[0087] In this embodiment, as Figure 10 As shown, the first cover 31 includes a cover body and an upper cover 34, and the upper cover 34 is snapped into the upper end of the cover body of the first cover 31. The air hole 341 is provided on the upper cover 34 and at the position corresponding to the exhaust channel 6, thereby facilitating the processing of the exhaust channel 6 inside the top cover 3.

[0088] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A boiling water cup with a convenient opening top cover, characterized in that, include: case; A water tank is installed inside the housing, and the top of the water tank has an opening that communicates with the outside in the height direction of the housing; A top cover is provided at the opening and is snapped together with the water tank. The top cover is used to open or close the opening. as well as A heating element is disposed inside the housing, and the outer peripheral wall of the water tank is at least partially attached to the heating element.

2. The cup with a top cover which is easy to open according to claim 1, wherein, The top cover includes: First cover; and A second cover is connected to the bottom of the first cover in the height direction of the shell; the outer diameter of the first cover is larger than the outer diameter of the second cover, so as to form an abutment surface at the connection between the first cover and the second cover; The second cover is inserted into the water tank to a preset depth and the top cover is rotated to a preset position, so that the top cover is snapped into the water tank and the contact surface is pressed against the top of the shell.

3. The hot water cup with a conveniently openable top lid as described in claim 2, characterized in that, The inner circumference of the water tank has a snap-fit ​​protrusion extending toward the axial centerline of the water tank. The outer peripheral side of the second cover is formed with a snap-fit ​​groove, and the bottom of the snap-fit ​​groove is closed in the height direction of the housing so that the bottom of the snap-fit ​​groove forms a stop. The second cover is inserted into the water tank to a preset depth and the top cover is rotated to a preset position, so that the snap-fit ​​protrusion snaps into the snap-fit ​​groove and the snap-fit ​​protrusion abuts against the stop part, for snapping the top cover into the water tank.

4. The hot water cup with a conveniently openable top lid as described in claim 3, characterized in that, The outer peripheral side of the second cover is spaced apart from the inner peripheral side of the water tank to form an annular gap between them, and the snap-fit ​​groove is formed in the annular gap; The outer periphery of the second cover has a first rib and a second rib that are spaced apart around the axial center line of the top cover. The first rib and the second rib both extend along the height direction of the shell, and the space between the first rib and the second rib forms the snap-fit ​​groove. A third rib is provided on the outer peripheral surface of the second cover body located below the first rib and the second rib, and the two opposite ends of the third rib in the length direction are respectively connected to the bottom of the first rib and the second rib; The third rib constitutes the stop portion.

5. The hot water cup with a conveniently openable top lid as described in claim 4, characterized in that, The third rib has a first end and a second end that are disposed opposite to each other in the length extension direction, and in the height direction of the housing, the first end is located above the second end, so that the third rib is inclinedly disposed on the outer peripheral surface of the second cover. The second end extends along the outer peripheral surface of the second cover and in a direction away from the first end to form a fourth rib, the inclination angle of the fourth rib being the same as that of the third rib.

6. The hot water cup with a conveniently openable top lid as described in claim 4, characterized in that, An auxiliary block is provided in the snap-fit ​​groove located above the third rib, and the snap-fit ​​protrusion snaps into the snap-fit ​​groove so that at least a portion of the snap-fit ​​protrusion presses against the auxiliary block.

7. The hot water cup with a conveniently openable top lid as described in claim 2, characterized in that, The top cover also includes a sealing ring, which is located at the bottom of the second cover and is snapped into the second cover.

8. The hot water cup with a conveniently openable top lid as described in claim 7, characterized in that, The outer periphery of the sealing ring has a protrusion extending away from the axial centerline of the top cover; The second cover is inserted into the water tank, so that the protrusion is pressed against and fits against the inner circumference of the water tank.

9. The hot water cup with a conveniently openable top lid as described in claim 7, characterized in that, The inner circumferential side of the sealing ring has an annular protrusion extending toward the axial center line of the top cover, and the outer circumferential side of the second cover has an annular groove that engages with the annular protrusion. The annular protrusion engages with the annular groove to secure the sealing ring to the second cover.

10. The hot water cup with a conveniently openable top lid as described in claim 2, characterized in that, The top cover also includes an exhaust duct, which passes through the first cover body and the second cover body in the height direction of the housing; The top cover is provided over the opening, and the exhaust duct is used to connect the outside world with the space inside the water tank.

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