Exhaust caps and pressure cooking appliances

Abstract

This utility model discloses a vent cover and a pressure cooking appliance. The vent cover includes a cover body and a knob on the cover body. The cover body has a mounting hole, and the knob is mounted in the mounting hole. The vent cover also includes a venting channel, which has an inlet end near the knob and an outlet end away from the knob to discharge gas. The knob includes an adjusting member with a connecting port for engaging with the inlet end of the venting channel. The adjusting member can be operated to change the communication area between the connecting port and the inlet end, thereby adjusting the venting volume. The vent cover provided by this utility model allows for adjustable venting, safe operation, and a simple cover structure.

Description

Technical Field

[0001] This utility model relates to the field of cooking appliance technology, specifically to a vent cap and a pressure cooking appliance. Background Technology

[0002] Existing pressure cookers, pressure cookers, and other pressure cooking appliances typically have pressure-limiting valves on their lids. These valves are used to limit pressure and release steam, and some even have adjustable pressure. Users can manually operate the pressure-limiting valve to release steam, but this poses a risk of burns from steam as the operator's hands are close to the vent. Furthermore, current technology often includes separate pressure-limiting valves and lid handles on the lid, making the lid less streamlined.

[0003] Therefore, it is necessary to propose a new technical solution to overcome the shortcomings of existing technologies. Utility Model Content

[0004] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides an exhaust cover that allows for adjustable exhaust conditions, safe operation, and a simple structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an exhaust cover, comprising a cover body and a knob disposed on the cover body, wherein the cover body is provided with a mounting hole, and the knob is mounted in the mounting hole, wherein the exhaust cover further comprises an exhaust channel, the exhaust channel having an inlet end near the knob and an outlet end away from the knob to discharge gas, the knob comprising an adjusting member, the adjusting member having a communication port for cooperating with the inlet end of the exhaust channel, the adjusting member being operable to change the communication area between the communication port and the inlet end, thereby realizing the adjustment of exhaust volume.

[0006] Optionally, the cover body includes a sealing ring disposed around its edge, and the sealing ring has an exhaust port corresponding to the exhaust end of the exhaust channel.

[0007] Optionally, the cover body has a base assembled or integrally formed on its inner side, and the base is provided with the exhaust channel.

[0008] Optionally, the cover body or the base has a connecting portion provided at the mounting hole, and the lifting knob includes a protective plate detachably connected to the connecting portion. The protective plate has an axial limiting portion that allows the adjusting member to rotate and prevents the adjusting member from moving axially along the mounting hole.

[0009] Optionally, the connecting part is provided with an external thread, the guard plate has an internal thread that connects with the external thread, the axial limiting part is a flange provided at the upper edge of the guard plate, and the adjusting member has a stepped part that cooperates with the flange.

[0010] Optionally, the cover body or the base has a connecting portion provided at the mounting hole, and the connecting portion and the adjusting member are provided with a rotation limiting structure that cooperates with each other to limit the rotation angle of the adjusting member. The rotation limiting structure includes a protrusion provided on one of the connecting portion and the adjusting member and a strip groove on the other.

[0011] Optionally, the cover body or the base has a connecting portion provided at the mounting hole, and the connecting portion and the adjusting member are provided with a mechanical gear structure that cooperates with each other to generate a gear shift feel. The mechanical gear structure includes an alternating concave-convex section provided on one of the connecting portion and the adjusting member and a sensing block on the other, wherein at least one of the alternating concave-convex section and the sensing block includes an elastic deformation member.

[0012] Optionally, the adjusting member has a hollow cavity, and the adjusting member includes a partition plate that divides the hollow cavity into an upper cavity and a lower cavity, and the communication port is opened on the peripheral wall of the lower cavity.

[0013] Optionally, the base includes an anti-clogging cover connected below the air intake end, the anti-clogging cover having a plurality of airflow holes; and / or, the lifting knob includes a lifting knob cover fixedly connected to the adjusting member; and / or, the cover body and the lifting knob are provided with mutually matching gear markings.

[0014] The present invention also adopts the following technical solution: a pressure cooking appliance, including a pot body and a pot lid covering the pot body, the pot lid sealingly covering the pot body to form a closed cooking cavity, the pot lid being a venting cap as described above, wherein the lifting knob is adapted to be operated to allow the cooking cavity to communicate with the outside through the venting channel to release air, and is adapted to be squeezed to pick up and put down the pot lid.

[0015] The exhaust cover and pressure cooking appliance provided by this utility model include an adjustment component extending into the mounting hole, with a connecting port on the adjustment component. An exhaust channel is provided on the inner side of the cover body, with an exhaust end and an intake end near the connecting port. The adjustment component can be operated to change the communication area between the connecting port and the intake end. With this design, the user can both perform exhaust operation by lifting the button and hold the button to pick up and put down the lid, realizing an integrated functional design, significantly simplifying the lid structure. Moreover, the exhaust channel design keeps the exhaust position away from the button, reducing the risk of being burned by high-temperature gas when performing exhaust operation.

[0016] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a perspective view of an embodiment of the exhaust cover of this utility model.

[0019] Figure 2 This is a perspective view of the cover body in one embodiment of the exhaust cover of this utility model.

[0020] Figure 3 This is a combined sectional view of an embodiment of the exhaust cover of this utility model.

[0021] Figure 4 This is an exploded cross-sectional view of an embodiment of the exhaust cover of this utility model.

[0022] Figure 5 This is a perspective view of the base in one embodiment of the exhaust cover of this utility model.

[0023] Figure 6 This is a diagram showing the state of full exhaust, partial exhaust, and no exhaust in one embodiment of the exhaust cover of this utility model.

[0024] The components include: 1. Cover body; 11. Mounting hole; 12. Sealing ring; 121. Exhaust port; 2. Lifting knob; 21. Base; 211. Exhaust channel; 212. Strip groove; 213. External thread; 214. Alternating concave and convex section; 22. Protective plate; 221. Internal thread; 222. Flange; 23. Adjusting component; 231. Divider plate; 232. Connecting port; 233. Protrusion; 234. Sensing block; 24. Lifting knob cover; 25. Anti-clogging cover. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0026] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this patent. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0027] The exhaust cover provided by this utility model significantly reduces manufacturing costs and process complexity by independently placing the filter device above the photodetector, while ensuring spectral analysis performance. The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, wherein components with the same function in each embodiment are identified using uniform reference numerals.

[0028] Please see Figures 1 to 6 As shown, this utility model provides a vent cover that can be used in pressure cooking appliances. The vent cover includes a cover body 1 and a knob 2 disposed on the cover body 1. The cover body 1 has a mounting hole 11 and a vent port 121 for venting. The knob 2 is mounted in the mounting hole 11 and can be manipulated to adjust the venting volume of the vent port 121. The vent cover also includes a vent channel 211, which has an outlet end for communicating with the outside to discharge gas and an inlet end near the mounting hole 11. The knob 2 includes an adjusting member 23, which has a connecting opening 232. The inlet end is disposed near the connecting opening 232. The adjusting member 23 can be manipulated to change the communication area between the connecting opening 232 and the inlet end, thereby adjusting the venting volume.

[0029] The exhaust cover provided by this utility model integrates the exhaust function into the lifting knob 2. Users can both perform exhaust operation through the lifting knob 2 and hold the lifting knob 2 to put on and take off the pot lid, realizing the integrated design of functions, simplifying the pot lid structure and making the pot lid more concise. Moreover, the amount of exhaust can be adjusted by rotating the lifting knob 2 at different angles. In addition, the setting of the exhaust channel 211 keeps the exhaust port 121 away from the lifting knob 2, reducing the risk of being burned by high temperature gas when performing exhaust operation.

[0030] Please see Figure 1 and Figure 2As shown, the vent cover disclosed in this embodiment includes a cover body 1 and a lifting knob 2. The cover body 1 includes a sealing ring 12 disposed around its edge, and the vent 121 is formed on the sealing ring 12. That is, the sealing ring 12 is disposed around the edge of the cover body 1, and the vent 121 is formed on the sealing ring 12. The cover body 1 can be made of glass, metal, or other materials, and the sealing ring 12 can be a food-grade silicone part. In this embodiment, the sealing ring 12 is disposed on the edge of the cover body 1 and has a vertically extending lip for sealing with the pot body, and the vent 121 is formed on the lip of the sealing ring 12. The cover body 1 has a mounting hole 11 in the center, and the lifting knob 2 is rotatably connected to the cover body 1 through the mounting hole 11. The user can adjust the vent volume of the vent 121 by rotating the lifting knob 2, and the lifting knob 2 also functions as a lid for lifting and removing the pot.

[0031] Please see Figure 3 and Figure 4As shown, in some embodiments, a base 21 is assembled or integrally formed on the cover body 1, and the exhaust channel 211 is provided on the base 21. In this embodiment, the base 21 is assembled on the inner side of the cover body 1. In this embodiment, the base 21 is threadedly connected to the protective plate 22 assembled on the top of the cover body 1, so that the cover body 1 is sandwiched between the protective plate 22 and the base 21 and remains connected and fixed. In other embodiments, the base 21 and the cover body 1 can also be connected as one piece by means of snap-fit ​​structure, welding, riveting, screw connection, etc., or it can be integrally formed by the cover body 1. An exhaust channel 211 is formed inside the base 21, which has an air inlet end and an air outlet end. In this embodiment, the outlet end is fitted to the exhaust port 121 on the sealing ring 12; in other embodiments, the outlet end may also be located inside the exhaust port 121 and communicate with the exhaust port 121 to discharge gas through the exhaust port 121; in other embodiments, the outlet end may also be configured to extend to the outside through the exhaust port 121 to discharge gas directly to the outside. In this embodiment, the base 21 includes a cylindrical portion that mates with the mounting hole 11, and the exhaust channel 211 extends radially from the cylindrical portion to the vicinity of the exhaust port 121, so that gas can enter from the inlet end communicating with the cylindrical portion, flow along the exhaust channel 211 to the outlet end, and then be discharged from the exhaust port 121. To prevent foreign objects mixed in the gas from clogging the exhaust channel 211, the base 21 also includes an anti-clogging cover 25 connected below the inlet end, the surface of the anti-clogging cover 25 having several airflow holes, which allow airflow to pass through and can block and filter foreign objects. In another embodiment, the exhaust channel 211 may be disposed on the outside of the cover body 1. Specifically, the exhaust channel 211 is disposed on the base 21, the base 21 is mounted to the upper surface of the cover body 1, the air inlet end of the exhaust channel 211 is close to the mounting hole 11, and the adjusting member 23 included in the lifting knob 2 extends to the air inlet end of the exhaust channel 211. The communication area between the connecting port 232 and the air inlet end can be adjusted by rotating the adjusting member 23.

[0032] Please refer to further information. Figure 5 As shown, in this embodiment, the base 21 has a connecting portion located at the mounting hole 11. The connecting portion has a structure for connecting and fixing with the lifting knob 2, such as an external thread 213; a structure for cooperating with the lifting knob 2 to limit its rotation range, such as a strip groove 212; and a structure for cooperating with the lifting knob 2 to achieve gear switching, such as an alternating concave-convex section 214. The specific connection methods between these structures on the connecting portion and the various components included in the lifting knob 2 will be described in detail later. In some embodiments, the connecting portion may also be part of the cover body 1.

[0033] Please continue reading. Figure 3 and Figure 4 As shown, in this embodiment, the lifting knob 2 includes a protective plate 22, an adjusting member 23, and a lifting knob cover 24. To ensure sealing performance, sealing elements can be provided between the mating parts. For example, in this embodiment, sealing rings are provided between the protective plate 22 and the cover body 1 and the base 21, as well as between the adjusting member 23 and the base 21.

[0034] The protective plate 22 is detachably connected to the connecting part. The protective plate 22 has an axial limiting part that allows the adjusting member 23 to rotate while preventing the adjusting member 23 from moving axially along the mounting hole 11. Specifically, the connecting part is provided with an external thread 213, and the protective plate 22 is roughly a nut structure with an internal thread 221 that connects to the external thread 213. The axial limiting part is a flange 222 located at the upper edge of the protective plate 22, and the adjusting member 23 has a stepped part that mates with the flange 222. That is, the protective plate 22 is assembled with the connecting part of the base 21 through a threaded connection structure, and the two are axially fixed by screwing them together. The upper edge of the protective plate 22 extends outward to form a flange 222, and the outer wall of the adjusting member 23 is correspondingly provided with a stepped part. When the adjusting member 23 passes through the mounting hole 11 and the protective plate 22 is sleeved on the outside of the adjusting member 23, the flange 222 and the stepped part form an axial limiting fit, preventing the adjusting member 23 from moving axially and retaining only rotational freedom. The lifting cover 24 is fixedly connected to the upper end of the adjusting component 23 by means of buckles or other connection methods. The outer surface of the lifting cover 24 is provided with anti-slip texture to facilitate user operation.

[0035] The adjusting member 23 is provided with a rotation limiting structure that cooperates with the connecting part to limit the rotation angle of the adjusting member 23. The rotation limiting structure includes a protrusion 233 on one of the connecting part and the adjusting member 23 and a strip groove 212 on the other. In this embodiment, the adjusting member 23 includes the protrusion 233, that is, the protrusion 233 is disposed on the adjusting member 23; in other embodiments, the protrusion 233 may be disposed on the connecting part of the base 21, and the strip groove 212 may be disposed on the adjusting member 23. When the adjusting member 23 rotates, the positions where the protrusion 233 contacts the two ends of the strip groove 212 are the two extreme positions where the adjusting member 23 can rotate.

[0036] The adjusting member 23 is provided with a mechanical shifting structure that cooperates with the connecting part to generate a shifting feel. The mechanical shifting structure includes an alternating concave-convex section 214 disposed on one of the connecting part and the adjusting member 23, and a sensing block 234 on the other. At least one of the alternating concave-convex section 214 and the sensing block 234 includes an elastically deformable element. That is, to optimize the operating feel, a mechanical shifting structure is provided between the connecting part of the base 21 and the adjusting member 23. The mechanical shifting structure consists of the alternating concave-convex section 214 of the connecting part of the base 21 and the sensing block 234 of the adjusting member 23. When the lifting knob 2 is rotated, the sensing block 234 sequentially passes over the peaks and troughs of the alternating concave-convex section 214, generating segmented tactile feedback. In this embodiment, the sensing block 234 is disposed on the adjusting member 23, and the alternating concave-convex section 214 is disposed on the base 21; in other embodiments, the reverse is also possible. In this embodiment, the sensing block 234 includes a spring and a protrusion elastically abutted by the spring. During the rotation of the adjusting member 23, when the protrusion contacts the protrusion of the alternating section 214, the spring is compressed; when the protrusion contacts the concave part of the alternating section 214, the spring pops the protrusion out, producing a jerky feel or even a certain sound to provide feedback on the rotation level. Further details can be found in the following documentation. Figure 1 and Figure 2 As shown, the cover body 1 and the knob 2 are equipped with matching gear position markings to indicate the current gear position. Specifically, in this embodiment, the knob 2 has a pointer, and the cover body 1 has the numbers 1, 2, and 3 to represent three gear positions, corresponding to three states: fully open exhaust, partially open exhaust, and no exhaust. It is understood that in some embodiments, the gear positions may also be marked with "off," "partially open," or "fully open" to facilitate intuitive identification of the current exhaust status by the user.

[0037] Please continue reading. Figure 4 As shown, in this embodiment, the adjusting member 23 has a hollow cavity. The adjusting member 23 includes a partition plate 231 that divides the hollow cavity into an upper cavity and a lower cavity. The connecting port 232 is opened on the peripheral wall of the lower cavity. That is, in this embodiment, the adjusting member 23 has a hollow structure, and its interior is divided into an upper cavity and a lower cavity by the partition plate 231. The connecting port 232 is opened on the peripheral wall of the lower cavity. Due to the obstruction of the partition plate 231, gas will not enter the upper cavity, thereby preventing the temperature of the upper cavity and the lifting cover 24 from rising, and avoiding burns when the user operates the lifting cover 24.

[0038] In use, the user rotates the knob cover 24 of the knob 2, which drives the adjusting member 23 to rotate, causing the connecting port 232 and the air intake end of the exhaust channel 211 of the base 21 to form different overlapping areas, thereby realizing the adjustment of the exhaust volume. Figure 6As shown in state A, when the inlet of the connecting port 232 and the intake end of the exhaust channel 211 are completely aligned, it is in full exhaust state, at which time the exhaust volume is the largest; as shown in state A. Figure 6 As shown in state B, when the intake end of the connecting port 232 and the exhaust channel 211 overlap, it is in a semi-exhaust state, at which time the exhaust volume is small; as shown in state B. Figure 6 As shown in state C, when the air inlet of the connecting port 232 and the air inlet of the exhaust channel 211 are completely misaligned, it is in a non-exhausting state. In the fully exhausting and half-exhausting states, the steam and other airflow below the cover body 1 are discharged sequentially through the airflow hole of the anti-blocking cover 25, the connecting port 232 of the adjusting component 23, the exhaust channel 211 of the base 21, and the exhaust port 121 on the sealing ring 12. Throughout the process, the user's hands are kept away from the exhaust port 121, effectively avoiding the risk of burns.

[0039] It should be noted that in the above embodiments, the adjusting member 23 is rotated to adjust the exhaust volume. In other embodiments, the adjusting member 23 can also be configured to change the communication area of ​​the communication port 232 by moving up and down, sliding left and right, etc.; specifically, moving up and down can be achieved by pressing or pulling, and sliding left and right can be achieved by pushing or pulling laterally.

[0040] This utility model also provides a pressure cooking appliance, including a pot body and a lid covering the pot body. The lid is sealed to the pot body to form a closed cooking cavity. The pressure cooking appliance can be a pressure cooker or a low-pressure cooking appliance, such as a low-pressure rice cooker. In this embodiment, when the vent lid is applied to the pressure cooking appliance, it forms a closed cooking cavity with the pot body through the sealing ring 12. The lifting knob 2 is adapted to be operated to allow the cooking cavity to communicate with the outside through the vent channel 211 and the vent 121 to release air, and is also adapted to be squeezed to pick up and put down the lid. That is, the user can both perform venting operation through the lifting knob 2 and hold the lifting knob 2 to pick up and put down the lid, realizing a functional integration design and simplifying the lid structure.

[0041] As can be seen from the above description of the specific embodiments, the exhaust cover and pressure cooking appliance provided by this utility model have an exhaust channel 211 on the inner side of the cover body 1. The exhaust channel 211 has an outlet end corresponding to the exhaust port 121 and an inlet end near the mounting hole 11. The lifting knob 2 includes an adjusting member 23 extending into the mounting hole 11. The adjusting member 23 has a connecting port 232. The adjusting member 23 can be rotated to change the connecting area between the connecting port 232 and the inlet end. With this setting, the user can both perform exhaust operation through the lifting knob 2 and hold the lifting knob 2 to pick up and put down the pot lid, realizing the integrated design of functions and significantly simplifying the pot lid structure. Moreover, the setting of the exhaust channel 211 keeps the exhaust port 121 away from the lifting knob 2, reducing the risk of being burned by high temperature gas when performing exhaust operation.

[0042] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A vent cover, comprising a cover body (1) and a lifting knob (2) disposed on the cover body (1), characterized in that, The cover body (1) is provided with a mounting hole (11), and the lifting button (2) is installed in the mounting hole (11). The exhaust cover also includes an exhaust channel (211). The exhaust channel (211) has an air inlet end close to the lifting button (2) and an air outlet end away from the lifting button (2) to discharge gas. The lifting button (2) includes an adjusting member (23). The adjusting member (23) has a connecting port (232) for cooperating with the air inlet end of the exhaust channel (211). The adjusting member (23) can be operated to change the communication area between the connecting port (232) and the air inlet end, thereby realizing the adjustment of exhaust volume.

2. The exhaust cover according to claim 1, characterized in that, The cover body (1) includes a sealing ring (12) arranged around its edge, and an exhaust port (121) is provided on the sealing ring (12) corresponding to the exhaust end of the exhaust channel (211).

3. The exhaust cover according to claim 1, characterized in that, The cover body (1) has a base (21) assembled or integrally formed on its inner side, and the exhaust channel (211) is provided on the base (21).

4. The exhaust cover according to claim 3, characterized in that, The cover body (1) or the base (21) has a connecting portion provided at the mounting hole (11), and the lifting button (2) includes a protective plate (22) detachably connected to the connecting portion. The protective plate (22) has an axial limiting portion that allows the adjusting member (23) to rotate and prevents the adjusting member (23) from moving axially along the mounting hole (11).

5. The exhaust cover according to claim 4, characterized in that, The connecting part is provided with an external thread (213), the guard plate (22) has an internal thread (221) that connects with the external thread (213), the axial limiting part is a flange (222) provided at the upper edge of the guard plate (22), and the adjusting member (23) has a stepped part that cooperates with the flange (222).

6. The exhaust cover according to claim 3, characterized in that, The cover body (1) or the base (21) has a connecting part provided at the mounting hole (11). The connecting part and the adjusting member (23) are provided with a rotation limiting structure that cooperates with each other to limit the rotation angle of the adjusting member (23). The rotation limiting structure includes a protrusion (233) provided on one of the connecting part and the adjusting member (23) and a strip groove (212) on the other.

7. The exhaust cover according to claim 3, characterized in that, The cover body (1) or the base (21) has a connecting part provided at the mounting hole (11). The connecting part and the adjusting member (23) are provided with a mechanical gear structure that cooperates with each other to generate a gear feel. The mechanical gear structure includes an alternating concave-convex section (214) provided on one of the connecting part and the adjusting member (23) and a sensing block (234) on the other. At least one of the alternating concave-convex section (214) and the sensing block (234) includes an elastic deformation member.

8. The exhaust cover according to any one of claims 1 to 7, characterized in that, The adjusting member (23) has a hollow cavity, and the adjusting member (23) includes a partition plate (231) that divides the hollow cavity into an upper cavity and a lower cavity, and the connecting port (232) is opened on the peripheral wall of the lower cavity.

9. The exhaust cover according to any one of claims 3 to 6, characterized in that, The base (21) includes an anti-clogging cover (25) connected to the lower part of the air inlet, and the anti-clogging cover (25) has a plurality of air passage holes; and / or, the lifting knob (2) includes a lifting knob cover (24) connected and fixed to the adjusting member (23); and / or, the cover body (1) and the lifting knob (2) are provided with mutually matching gear markings.

10. A pressure cooking appliance, comprising a pot body and a lid disposed on the pot body, the lid sealingly covering the pot body to form a closed cooking cavity, characterized in that, The lid is a venting lid as described in any one of claims 1 to 9, wherein the lifting knob (2) is adapted to be operated to allow the cooking cavity to communicate with the outside through the venting channel (211) for venting, and is adapted to be grasped to pick up or put down the lid.

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