A water heater designed to prevent tipping and spilling.
The water heating pot's innovative steam passage design with left-to-right blocking segments addresses tipping and overflowing issues, ensuring effective overflow prevention without additional valves, thus simplifying the structure and reducing costs.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2026-01-22
- Publication Date
- 2026-03-26
AI Technical Summary
Existing water heating pots face issues with tipping and overflowing due to the design of steam passages, which often require additional components like check valves and overflow prevention valves, increasing complexity and cost.
A water heating pot with a steam passage featuring blocking segments extending in the left-to-right direction, supported by a handle and nozzle, preventing overflow by raising the steam passage height when the pot tips, eliminating the need for separate overflow prevention valves.
The design effectively prevents overflow by leveraging the pot's natural tipping direction, reducing complexity and cost, and enhancing production capacity through a simple and reliable structure.
Smart Images
Figure 0003255232000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of water heating pots, and specifically to a water heating pot for preventing tipping and overflowing.
Background Art
[0002] A water heating pot is a device for heating water in the pot, and generally an electric pot by electric heating is used nowadays. The pot cover of the water heating pot needs to design a steam passage to output steam. However, when it falls, the water in the pot is likely to overflow from the pot nozzle and the steam passage of the pot cover. Therefore, the prior art generally installs a check valve on the pot nozzle and an overflow prevention valve in the steam passage of the pot cover. When it falls, after the water overflows into the steam passage, the operation of the overflow prevention valve is triggered. Installing the structure of the overflow prevention valve on the pot cover requires extra layout space, and there are also problems such as insufficient installation of the overflow prevention valve or failure during use.
Summary of the Invention
Problems to be Solved by the Invention
[0003] Therefore, the present invention provides a water heating pot for preventing tipping and overflowing, and in the pot cover, realizes overflow prevention by improving the structure of the steam passage.
Means for Solving the Problems
[0004] To achieve the above object, the technical solution provided by the present invention is as follows.
[0005] A spill-proof water boiling pot includes a pot body, a pot nozzle installed on the front of the pot body, a handle installed on the rear of the pot body, and a pot cover that closes the top opening of the pot body. The pot cover is provided with a steam inlet, a steam outlet, and a steam passage formed inside the pot cover that connects the steam inlet and the steam outlet. A line extending in the front-to-back direction through the center point of the pot cover is defined as the center line, and the steam passage has at least one blocking segment extending in the left-to-right direction through the center line.
[0006] Furthermore, there are multiple blocking segments, and these multiple blocking segments are connected to each other and form a bypass passage that is installed to reciprocate in the left-right direction.
[0007] Furthermore, at least one of the blocking segments is located at both the left and right ends of the pot cover, respectively.
[0008] Furthermore, a fixed base is fixed to the upper opening of the pot body, a retractable window is provided in the fixed base, the pot cover includes a flip cover, the flip cover is hinged to the fixed base and flips over to open and close the retractable window of the fixed base, and the steam inlet, steam outlet and steam passage are installed in the flip cover.
[0009] Furthermore, the pot cover further includes a buckle module and a knob on the flip cover, the knob of the flip cover being rotatably mounted to drive and connect the buckle module, causing the buckle module to protrude from or retract into the flip cover, and when the flip cover is closed to the retraction window, the buckle module protrudes from the outside of the flip cover and engages with a fixing seat on the pot body.
[0010] Furthermore, the buckle module includes a buckle and a buckle spring, the buckle being slidably mounted within the flip cover, the buckle spring providing an elastic force to cause the buckle to protrude from the flip cover, a rotating shaft being installed in the flip cover, the knob of the flip cover being mounted on the rotating shaft, the rotating shaft having a first arm, the first arm being connected to the buckle.
[0011] Furthermore, a second arm is installed on the knob of the flip cover, and an elastic jack is installed on the flip cover, the elastic jack is located in the movement trajectory of the second arm, and when the knob of the flip cover drives the buckle module to protrude from the flip cover, the second arm presses against the elastic jack from the first side to reach the second side of the elastic jack, and when the knob of the flip cover drives the buckle module to retract into the flip cover, the second arm presses against the elastic jack from the second side to reach the first side of the elastic jack.
[0012] Furthermore, the flip cover includes a pot top cover, a pot interior cover, a pot center cover, and a pot bottom cover. The pot bottom cover is fixed to the underside of the pot center cover and housed in a retractable window of the fixing base. The pot center cover is installed so as to be connected to the fixing base by a hinge. The pot interior cover is fixed to the upper side of the pot center cover and together constitutes the steam passage and the steam outlet. The steam inlet is formed in the pot bottom cover and connected to the steam passage. The pot top cover covers the pot interior cover and is fixed and connected to the pot center cover. The buckle module is installed in the pot bottom cover. Through holes corresponding to the pot top cover, pot interior cover, and pot center cover are provided. The knob of the flip cover is attached to the pot bottom cover by passing through through holes in the pot top cover, pot interior cover, and pot center cover, respectively.
[0013] Furthermore, a silicone rubber inner cover is installed between the inner pot cover and the central pot cover.
[0014] Furthermore, a silicone rubber steam vent is installed between the central cover of the pot and the lower cover of the pot to fill the gap at the connection point between the steam inlet and the steam passage.
[0015] Furthermore, a silicone rubber ring is installed on the outer circumference of the lower pot cover, and the flip cover is formed to seal and fit with the fixing seat via the silicone rubber ring when it is closed into the retraction window.
[0016] Furthermore, a torsion spring is installed between the fixed seat and the flip cover, and the torsion spring biases the flip cover with a torsional force that separates it from the fixed seat.
[0017] Furthermore, an on / off valve is installed in the pot nozzle.
[0018] Furthermore, the weight of the rear of the pot body is greater than the weight of the front of the pot body. [Effects of the Invention]
[0019] The technical solution provided by this invention has the following beneficial effects.
[0020] Because the kettle is supported by the pot nozzle and handle in the front-to-back direction, when the kettle tips over, it generally only tips to the left or right. However, in the spill prevention design of the pot cover, the steam passage is designed to have at least one blocking segment that extends along the left-to-right direction through the centerline. The installation of this blocking segment that extends along the left-to-right direction raises the height of the steam passage when the kettle tips over to the left or right, thereby preventing the water inside the kettle from passing through the highest point of the steam passage, further preventing the water inside the kettle from overflowing, and achieving a simple and reliable structure. [Brief explanation of the drawing]
[0021] [Figure 1] It is a schematic perspective view of a boiling pot with anti - toppling and over - flowing function in an embodiment. [Figure 2] It is a schematic exploded view of a partial structure of a boiling pot with anti - toppling and over - flowing function in an embodiment. [Figure 3] It is a plan view of a boiling pot with anti - toppling and over - flowing function in an embodiment, in which a partial structure of the pot cover is hidden. [Figure 4] It is a schematic perspective view 1 of the assembled structure of the pot cover and the fixed seat in an embodiment. [Figure 5] It is a schematic perspective view 2 of the assembled structure of the pot cover and the fixed seat in an embodiment. [Figure 6] It is a cross - sectional view of the assembled structure of the pot cover and the fixed seat in an embodiment. [Figure 7] It is a schematic exploded view of the structure of the assembled structure of the pot cover and the fixed seat in an embodiment. [Figure 8] It is a schematic view 1 of a partial structure of the pot cover in an embodiment. [Figure 9] It is a schematic view 2 of a partial structure of the pot cover in an embodiment.
Modes for Carrying Out the Invention
Embodiment
[0022] As shown in FIGS. 1 to 9, the boiling pot with anti - toppling and over - flowing function provided in this embodiment includes a pot body 1, a pot nozzle 2 installed on the front side of the pot body 1, a handle 3 installed on the rear side of the pot body 1, and a pot cover 10 for closing the upper opening 4 of the pot body 1. An on - off valve 5 is installed on the pot nozzle 2. The on - off valve 5 employs a valve body that can open and close a conventional passage, and its installation position is not limited either. For example, it can be installed at the inlet, outlet of the pot nozzle 2 or inside the pot nozzle 2, as long as it can control the opening and closing of the pot nozzle 2.
[0023] The pot cover 10 is equipped with a steam inlet 101, a steam outlet 103, and a steam passage 102 formed inside the pot cover 10 that connects the steam inlet 101 and the steam outlet 103. When the pot cover 10 is closed, the steam generated by the hot water in the pot body 1 enters through the steam inlet 101, passes through the steam passage 102, and is ejected from the steam outlet 103, thereby achieving a normal steam output.
[0024] Specifically, for the sake of clarity, a line extending in the front-to-back direction through the center point o of the pot cover 10 is defined as the center line I, and the steam passage 102 has at least one blocking segment 104 extending in the left-to-right direction through the center line I. In this specific embodiment, there are three blocking segments 104, and the three blocking segments 104 are connected at their ends to form a bypass passage that reciprocates in the left-to-right direction.
[0025] Since the kettle is supported in the front-to-back direction by the pot nozzle 2 and the handle 3, when the kettle falls over, it generally only falls to the left or to the right. The pot nozzle 2 is equipped with an on-off valve 5 that can be closed in advance. In the overflow prevention design of the pot cover 10, the steam passage 102 is designed to have at least one blocking segment 104 that extends along the left-to-right direction through the center line I. When the kettle falls to the left, the left end (position A) of the blocking segment 104 is in a lower position and the right end (position B) is in a higher position, making it difficult for the water in the pot body 1 to pass over the right end (position B) of the blocking segment, thereby preventing overflow. When the kettle falls to the right, the right end (position B) of the blocking segment 104 is in a lower position and the left end (position A) is in a higher position, making it difficult for the water in the pot body 1 to pass over the left end (position A) of the blocking segment, thereby preventing overflow. The simple structural design of the steam passage 102 achieves an overflow prevention effect, eliminating the need to install structures such as overflow prevention valves, effectively reducing costs and ensuring greater reliability. Furthermore, the absence of complex parts reduces installation difficulty and cost, facilitating mass production and effectively improving production capacity.
[0026] Specifically, three shut-off segments 104 are used to form a bypass passage, creating multiple overflow prevention structures, thereby enhancing the overflow prevention effect. Furthermore, the ends of the centrally located shut-off segment 104 are positioned at the left and right ends of the pot cover 10 (i.e., positions A and B), increasing the maximum distance in the left-right direction and further improving the overflow prevention effect. The two front and rear shut-off segments 104 are connected to the steam outlet 103 and steam inlet 101, respectively. Naturally, in other embodiments, the number of shut-off segments 104 may be set according to the actual situation, for example, one, two, or more than two.
[0027] Specifically, in this embodiment, a fixed seat 6 is fixed to the upper opening 4 of the pot body 1, a retractable window 7 is provided in the fixed seat 6, the pot cover 10 includes a flip cover 12, the flip cover 12 is hinged to the fixed seat 6 and flips over to open and close the retractable window 7 of the fixed seat 6, and the steam inlet 101, steam outlet 103 and steam passage 102 are installed in the flip cover 12.
[0028] Furthermore, a buckle module 14 and a flip cover knob 13 are installed on the flip cover 12. The flip cover knob 13 is rotatably mounted to drive and connect to the buckle module 14, causing the buckle module 14 to protrude from or retract into the flip cover 12. When the flip cover 12 is closed to the retraction window 7, the buckle module 14 protrudes from the outside of the flip cover 12 and engages with the fixing seat 6 of the pot body 1, thereby securing the flip cover 12 in place. The locking and unlocking of the flip cover 12 is controlled by rotating the flip cover knob 13, making it easier to operate. After the flip cover 12 is unlocked, the flip cover knob 13 can be opened and closed by hand, avoiding direct contact with the flip cover body and causing burns. Specifically, this embodiment achieves automatic opening by a torsion spring 172 installed as described below.
[0029] Specifically, the buckle module 14 includes a buckle 141 and a buckle spring 142, the buckle 141 is slidably mounted inside the flip cover 12, the buckle spring 142 provides an elastic force that causes the buckle 141 to protrude from the flip cover 12, and in this embodiment, the buckle 141 has two guide arms 144 located at the rear end and an engagement arm 145 located at the front end, the two guide arms 144 are positioned to guide the flip cover 12, a lateral opening 1211 is provided on the front side of the flip cover 12, and the engagement arm 145 is drilled into the lateral opening 1211. A rotating shaft 15 is further installed on the flip cover 12, the knob 13 of the flip cover is mounted on the rotating shaft 15, the rotating shaft 15 has a first arm 151, the first arm 151 is connected to the buckle 141, specifically hinged to one of the guide arms 144 of the buckle 141. When the flip cover 12 is closed to the retraction window 7, the buckle 141 remains engaged with the fixing seat 6 of the pot body 1 by the elastic force biased by the buckle spring 142. When the knob 13 of the flip cover rotates counterclockwise, the buckle 141 is retracted backward via the first arm 151 to release the lock, and at this time, the retraction of the buckle 141 must resist the elastic force of the buckle spring 142. When the knob 13 of the flip cover is loosened, the elastic force of the buckle spring 142 drives the buckle 141 forward, re-engaging it with the fixing seat 6 of the pot body 1. Alternatively, if the buckle spring 142 alone cannot drive the buckle 141 forward, an external force can be applied to rotate the knob 13 of the flip cover clockwise, driving the buckle claw 141 forward through the combined action of the external force and the buckle spring 142.
[0030] Specifically, a buckle rubber ring 143 is fitted onto the engagement arm 145 of the buckle 141, and when the engagement arm 145 of the buckle 141 is in the protruding position, the buckle rubber ring 143 is formed to fit and seal with the lateral opening 1211, thereby filling the gap between the engagement arm 145 of the buckle 141 and the lateral opening 1211.
[0031] Furthermore, in order to intuitively sense whether or not the buckle 141 is engaged in a predetermined position, the structure of the elastic jack 16 is designed in this embodiment, and its specific structure is shown below. A second arm 134 is further installed on the knob 13 of the flip cover, and an elastic jack 16 is further installed on the flip cover 12. Specifically, the elastic jack 16 consists of a jack 161 and a jack spring 162, and the jack spring 162 biases the jack 161 with an upward elastic force. The elastic jack 16 is positioned in the movement trajectory of the second arm 134. When the knob 13 of the flip cover drives the buckle module 14 to protrude from the flip cover 12, the second arm 134 presses against the elastic jack 16 from its first side to reach its second side. When the knob 13 of the flip cover drives the buckle module 14 to retract into the flip cover 12, the second arm 134 presses against the elastic jack 16 from its second side to reach its first side. Each time the second arm 134 passes over the elastic jack 16, the elastic jack 16 is first pressed, then reset, and after the reset, it contacts the inner wall of the flip cover 12, producing a sound. In this way, it is possible to directly determine whether or not to switch to a predetermined position in response to the sound.
[0032] Furthermore, the knob 13 of the flip cover includes an upper knob cover 131, a central knob cover 132, and a lower knob cover 133. The lower knob cover 133 is mounted on the bottom of the central knob cover 132, and the second arm 134 is installed thereon. That is, the lower knob cover 133 and the second arm 134 are integrally connected. The upper knob cover 131 is fixed to the top of the central knob cover 132, and the lower knob cover 133 is further fixed to the rotating shaft 15 and is formed to be rotatably installed. Of course, in other embodiments, the structure of the knob 13 of the flip cover is not limited to this. For example, the upper knob cover 131 and the central knob cover 132 may be integrally molded structures, and the lower knob cover 133 and the second arm 134 may be assembled structures.
[0033] Specifically, the flip cover 12 includes a pot upper cover 124, a pot inner cover 123, a pot central cover 122, and a pot lower cover 121. The pot lower cover 121 is fixed to the lower side of the pot central cover 122 and housed in a retractable window 7 of the fixing base 6. The pot central cover 122 is installed so as to be hinged to the fixing base 6 by a connecting shaft 171. The pot inner cover 123 is fixed to the upper side of the pot central cover 122 and together constitutes the steam passage 102 and the steam outlet 103. The steam inlet 101 is formed in the pot lower cover 121 and connected to the steam passage 102. In this way, the steam inlet 101 can communicate with the cavity of the pot body 1. The pot upper cover 124 covers the pot inner cover 123 and is fixed and connected to the pot center cover 122. The buckle module 14 is installed on the pot lower cover 121, and through holes corresponding to the pot upper cover 124, pot inner cover 123, and pot center cover 122 are provided (i.e., through hole 1241 in the pot upper cover 124, through hole 1231 in the pot inner cover 123, and through hole 1221 in the pot center cover 122). The knob 13 of the flip cover is attached to the pot lower cover 121 by passing through through holes 1241 in the pot upper cover 124, 1231 in the pot inner cover 123, and 1221 in the pot center cover 122 in sequence. The elastic jack 16 is attached to the pot center cover 122 and passes through the pot inner cover 123, and the second arm 134 is positioned between the pot upper cover 124 and the pot inner cover 123. In this way, the flip cover 12 is connected.
[0034] An additional silicone rubber inner cover 125 is installed between the pot inner cover 123 and the pot central cover 122. The silicone rubber inner cover 125 fills the gap between the pot inner cover 123 and the pot central cover 122, thereby creating a sealed steam passage 102.
[0035] A steam vent silicone rubber 18 is installed between the pot's central cover 122 and the pot's lower cover 121, filling the gap at the connection point between the steam inlet 101 and the steam passage 102.
[0036] A silicone rubber ring 19 is installed on the outer circumference of the pot lower cover 121, and when the flip cover 12 is closed to the retraction window 7, it is formed to seal and fit with the fixing seat 6 via the silicone rubber ring 19, filling the gap between the pot lower cover 121 and the fixing seat 6. This ensures a sealed fit at each connection position and guarantees sealing performance. Naturally, in other embodiments, a sealed fit of the above connections can be achieved using other sealing structures.
[0037] Furthermore, a torsion spring 172 is installed between the fixed seat 6 and the flip cover 12. The torsion spring 172 biases the flip cover 12 with a torsional force that separates it from the fixed seat 6. Specifically, the torsion spring 172 is fitted onto a connecting shaft 171 that connects the fixed seat 6 and the flip cover 12, and the two torsional arms of the torsion spring 172 abut against the fixed seat 6 and the pot center cover 122 of the flip cover 12, respectively. In this way, when the lock between the flip cover 12 and the pot body 1 is released, the flip cover 12 is automatically flipped up by the torsion spring 172. This prevents burns from the steam that escapes when the flip cover 12 is opened by hand.
[0038] The present invention discloses one preferred solution for preventing spillage in a water boiling pot, and naturally, it is not limited to this in other embodiments. For example, in the structure of the pot cover 10, only the structure of the flip cover 12 may be installed, the flip cover 12 may be formed to be directly connected to the pot body 1 by a hinge and to be directly sealed and fitted to the pot body 1 when closed, or the structure may not have an elastic jack 16 installed in the flip cover 12, or the buckle module 14 may be made to protrude from or retract into the flip cover 12 using a push key that is pushed in the front-to-back direction. [Examples]
[0039] The spill-proof kettle provided in this embodiment has almost the same structure as the spill-proof kettle provided in Embodiment 1, but the differences are as follows. In this embodiment, the weight at the rear of the kettle body 1 is greater than the weight at the front of the kettle body 1, where the rear of the kettle body 1 is the location of the handle 3 and the front of the kettle body is the location of the kettle nozzle 2. In this way, when the kettle tips over, it tilts backward, causing the kettle nozzle 2 at the front to spring upward, preventing water from flowing out of the kettle body 1 through the kettle nozzle 2. Thus, there is no need to design an on-off valve 5 for the kettle nozzle 2. In other embodiments, the design regarding the weight of the kettle body may be installed at the same time as the on-off valve 5, or neither may be installed.
[0040] While the present invention has been specifically demonstrated and introduced with reference to preferred embodiments, as will be understood by those skilled in the art, various modifications can be made to the present invention in form and detail without departing from the spirit and scope of the present invention limited to the attached utility model claims, and all such modifications remain within the scope of protection of the present invention.
Claims
1. A spill-proof kettle comprising a pot body, a pot nozzle installed on the front of the pot body, a handle installed on the rear of the pot body, and a pot cover that closes the top opening of the pot body, wherein the pot cover is provided with a steam inlet, a steam outlet, and a steam passage formed inside the pot cover that connects the steam inlet and the steam outlet, characterized in that a line extending in the front-to-back direction through the center point of the pot cover is defined as the center line, and the steam passage has at least one blocking segment extending in the left-to-right direction through the center line.
2. The spill-preventing water boiling pot according to claim 1, characterized in that the number of blocking segments is multiple, and the multiple blocking segments are connected to each other and form a bypass passage that is installed to reciprocate in the left-right direction.
3. The spill-proof kettle according to claim 1 or 2, characterized in that at least one blocking segment is located at both ends of the pot cover, on the left and right sides, respectively.
4. A spill-proof water boiling pot according to claim 1, characterized in that a fixed base is fixed to the upper opening of the pot body, a retractable window is provided in the fixed base, the pot cover includes a flip cover, the flip cover is hinged to the fixed base and flips over to open and close the retractable window of the fixed base, and the steam inlet, steam outlet and steam passage are installed in the flip cover.
5. The pot cover further includes a buckle module and a knob on the flip cover, the knob on the flip cover being rotatably mounted to drive and connect the buckle module, causing the buckle module to protrude from or retract into the flip cover, and when the flip cover is closed to the retraction window, the buckle module protrudes from the outside of the flip cover and engages with a fixing seat on the pot body, as described in claim 4 for a spill-proof boiling pot.
6. The spill-proof kettle according to claim 5, wherein the buckle module includes a buckle and a buckle spring, the buckle is slidably mounted inside a flip cover, the buckle spring provides an elastic force that causes the buckle to protrude from the flip cover, a rotating shaft is further installed in the flip cover, the knob of the flip cover is mounted on the rotating shaft, the rotating shaft has a first arm, and the first arm is connected to the buckle.
7. The spill-proof kettle according to claim 5 or 6, further comprising: a second arm further installed on the knob of the flip cover; an elastic jack further installed on the flip cover, the elastic jack positioned in the movement trajectory of the second arm; when the knob of the flip cover drives the buckle module to protrude from the flip cover, the second arm presses against the elastic jack from the first side to reach the second side of the elastic jack; and when the knob of the flip cover drives the buckle module to retract into the flip cover, the second arm presses against the elastic jack from the second side to reach the first side of the elastic jack.
8. The spill-proof water boiling pot according to claim 5, characterized in that the flip cover includes a pot top cover, a pot interior cover, a pot center cover, and a pot bottom cover, the pot bottom cover is fixed to the underside of the pot center cover and housed in a retraction window of a fixing base, the pot center cover is installed so as to be connected to the fixing base by a hinge, the pot interior cover is fixed to the upper side of the pot center cover and together constitutes the steam passage and the steam outlet, the steam inlet is formed in the pot bottom cover and connected to the steam passage, the pot top cover covers the pot interior cover and is fixed and connected to the pot center cover, the buckle module is installed in the pot bottom cover, through holes corresponding to the pot top cover, pot interior cover, and pot center cover are provided, and the knob of the flip cover is attached to the pot bottom cover by passing through through holes in the pot top cover, pot interior cover, and pot center cover in order.
9. The spill-preventing kettle according to claim 4 or 8, characterized in that a torsion spring is installed between the fixed base and the flip cover, and the torsion spring biases the flip cover with a torsional force that separates it from the fixed base.
10. A shut-off valve is installed in the aforementioned pot nozzle. The spill-proof water boiling pot according to claim 1, characterized in that the weight of the rear of the pot body is greater than the weight of the front of the pot body.