Cooker cover and pressure cooker

Abstract

The utility model discloses a lid and pressure cooker, including inner lid, outer lid and decompression valve, the outer lid covers the back side of inner lid and is fixed with the inner lid, the decompression valve is arranged between the inner lid and the outer lid, the inner lid is provided with first decompression valve mounting hole, the inner lid is provided with second decompression valve mounting hole, the outer lid is provided with second decompression valve mounting hole, and the inner lid is provided with second decompression valve mounting hole. A first pressure release valve mounting hole is formed in the inner cover, a second pressure release valve mounting hole is formed in the outer cover, the first pressure release valve mounting hole is aligned with the second pressure release valve mounting hole, and the pressure release valve body is inserted into the first pressure release valve mounting hole and the second pressure release valve mounting hole so that the inner cover and the outer cover can be fixedly connected through the pressure release valve. And the inner side of the inner cover is communicated with the outer side of the outer cover through a pressure release valve hole of the pressure release valve. The number of parts of the pot cover is reduced, assembly is convenient, and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pressure cooker technology, specifically to a pot lid and a pressure cooker. Background Technology

[0002] A pressure cooker generally consists of a pot body and a lid. When in use, the lid is placed on the pot body and seals the pot, thus making the pressure inside the cooking chamber of the pot body greater than the external air pressure during the cooking process.

[0003] The pot lids in related technologies are generally designed with a two-layer structure. Between the two layers of the pot lid are locking parts for cooperating with the pot body, multiple valves with different pressure standards (to ensure the safety of the pressure cooker, generally including safety valves, pressure valves, pressure relief valves, etc.), and connecting parts (generally including bolts) that fix the two layers of the structure. It can be seen that the pot lid has too many and too many types of parts, and the structure is complex, which will increase the production cost.

[0004] Therefore, it is essential to design a pressure cooker with a simple structure and low production cost. Utility Model Content

[0005] This utility model aims to solve one of the technical problems in related technologies to a certain extent. Therefore, this utility model provides a pot lid and a pressure cooker, which have the advantages of convenient installation and simple structure.

[0006] To achieve the above objectives, the first aspect of this utility model discloses a pot lid, including an inner lid, an outer lid, and a pressure relief valve. The outer lid is fastened to the back side of the inner lid and fixedly connected to the inner lid. The pressure relief valve is disposed between the inner lid and the outer lid. A first pressure relief valve mounting hole is formed on the inner lid, and a second pressure relief valve mounting hole is formed on the outer lid. The first pressure relief valve mounting hole and the second pressure relief valve mounting hole are aligned. The pressure relief valve body is inserted into the first pressure relief valve mounting hole and the second pressure relief valve mounting hole, so that the inner lid and the outer lid are fixedly connected through the pressure relief valve, and the pressure relief valve hole of the pressure relief valve communicates the inner side of the inner lid with the outer side of the outer lid.

[0007] In this technical solution, by setting the valve body of the pressure relief valve, an essential component of the valve assembly on the pressure cooker lid, as a connecting component (pressure relief valve body), the pressure relief valve body serves as part of the valve, used to install the valve core, and also enables the fixed connection between the inner and outer lids. This avoids the need for additional fasteners, reduces the number of parts on the lid, and lowers production costs. Furthermore, the pressure relief valve in this application forms a sealing structure through the cooperation of the valve core and flange, which can produce elastic deformation. The valve body itself has a simple structure, further simplifying the overall structure of the lid.

[0008] Furthermore, the pressure relief valve includes a pressure relief valve body and a pressure relief valve core. A pressure relief valve hole is formed on the pressure relief valve body, and the pressure relief valve core is disposed in the pressure relief valve hole. The pressure relief valve body includes a first threaded portion and a limiting support portion. A second threaded portion is formed on the inner wall of one of the first pressure relief valve mounting holes and the second pressure relief valve mounting hole, which mates with the first threaded portion. The second threaded portion and the first threaded portion are threadedly connected. The limiting support portion passes through the other of the first pressure relief valve mounting hole and the second pressure relief valve mounting hole and abuts against the surfaces of the corresponding inner and outer covers to limit the separation of the inner and outer covers along the axial direction of the pot lid.

[0009] Furthermore, the outer cover has a protrusion protruding toward the inner cover, the protrusion has a second pressure relief valve mounting hole, the inner wall of the second pressure relief valve mounting hole has a second thread, the outer wall of the first end of the pressure relief valve body is provided with the first thread, the second end of the pressure relief valve body is provided with the limiting support, the pressure relief valve body passes through the first pressure relief valve mounting hole and the limiting support abuts against the front of the inner cover.

[0010] Furthermore, the pot lid also includes a metal sleeve fixedly disposed within the second pressure relief valve mounting hole. The metal sleeve has a central through hole formed on it, and the inner wall of the central through hole has a second threaded portion. This improves the connection strength.

[0011] Furthermore, the pot lid also includes a safety valve. The safety valve and the pressure relief valve are disposed on opposite sides of the pot lid axis. The safety valve includes a safety valve body and a safety valve core. The safety valve body includes a first valve body and a second valve body. One end of the first valve body and one end of the second valve body are sleeved together and threadedly connected. A second connecting hole corresponding to the first valve body is formed on the outer cover. A third connecting hole corresponding to the second valve body is formed on the inner cover. The other end of the first valve body passes through the second connecting hole and abuts against the back of the outer cover. The other end of the second valve body passes through the third connecting hole and abuts against the front of the inner cover.

[0012] Furthermore, a notch is formed on the side wall of the first valve body, and the safety valve core is slidably disposed in the second valve body. When the pressure towards the top of the safety valve core is greater than the preset pressure, the top of the safety valve core is higher than the notch, and when the pressure towards the top of the safety valve core is less than the preset pressure, the top of the safety valve core is lower than the notch.

[0013] Furthermore, the pressure relief valve core includes an operating part and a sealing part, the sealing part and the operating part are connected, the diameter of the sealing part is larger than the diameter of the operating part, the sealing part is disposed in the pressure relief valve hole, the groove is formed on the side wall of the sealing part, and one end of the operating part extends out of the pressure relief valve body.

[0014] Furthermore, an installation space is formed between the outer cover and the inner cover. The pot lid also includes a plurality of clamping assemblies and a driving assembly circumferentially distributed around the axis of the pot lid. The clamping assembly includes a clamping member and a sliding member. The sliding member is located in the installation space and is slidably disposed on the inner cover along the radial direction of the pot lid. The outer side of the sliding member is engaged with the clamping member, and the inner side of the sliding member is connected to the output end of the driving assembly. The driving assembly is used to drive the plurality of clamping assemblies to move synchronously in and out along the radial direction of the pot lid, and can enable the clamping member to extend out of the installation space and lock with the outer wall of the pot body. A radially extending clearance hole is formed on the sliding member, and the pressure relief valve body passes through the clearance hole.

[0015] Furthermore, the sliding member includes a sliding support portion, a first docking portion, and a second docking portion. The first docking portion is disposed on the inner side of the sliding support portion and connected to the driving assembly. The second docking portion is disposed on the outer side of the sliding support portion. The second docking portion includes a docking body and a snap-fit ​​boss protruding from the surface of the docking body. The clamping member has a snap-fit ​​hole adapted to the snap-fit ​​boss. The snap-fit ​​boss is inserted into the snap-fit ​​hole. The length dimension of the snap-fit ​​hole and the snap-fit ​​boss is greater than the width dimension.

[0016] Furthermore, the second docking part also includes two limiting buckles, which are disposed on opposite sides of the engaging protrusion. One end of each limiting buckle is connected to the docking body, and the other end forms a protrusion opposite to the surface of the docking body. The protrusion and the docking body clamp the clamping member to achieve a fixed connection between the sliding member and the clamping member.

[0017] Furthermore, the clamping member includes a clamping section and a connecting section. The clamping section is used to lock the pot body, and the connecting section has the snap-fit ​​hole. The clamping section is constructed as an arc around the axis of the pot lid, and the connecting section is located in the middle part of the arc of the clamping section. The surface of the connecting section is in contact with the surface of the docking body.

[0018] Furthermore, the clamping section includes a top plate, a vertical plate, and a bottom plate. The top plate, vertical plate, and bottom plate are all constructed in an arc shape around the axis of the pot lid. The top plate is disposed on the top side of the vertical plate and fits against the upper end face of the inner lid. The bottom plate is disposed on the bottom of the vertical plate and is spaced apart from the top plate. The bottom plate is used to extend into the bottom side of the protrusion on the outer wall of the pot to lock the pot body. The connecting section is disposed in the middle position of the top plate in the circumference. The vertical plate and the bottom plate have a discharge port corresponding to the connecting section.

[0019] Furthermore, one of the inner cover and the outer cover is provided with a guide mechanism located within the installation space. The guide mechanism includes two spaced baffles, and a radial sliding channel is formed between the two baffles. The sliding member is slidably disposed within the sliding channel, and the two sides of the sliding member are respectively abutted against the baffles on the corresponding sides.

[0020] Furthermore, the drive assembly includes an operating knob and a drive gear. The operating knob is rotatably disposed on the outer cover, and the top of the operating knob protrudes from the back of the outer cover. The drive gear is fixedly connected to the operating knob and is located between the two clamping assemblies. A rack is formed on the inner end of the sliding member that meshes with the drive gear. The racks on the two sliding members are located on opposite sides of the drive gear.

[0021] Furthermore, the drive assembly includes an operation knob and a drive disk. The operation knob is rotatably mounted on the outer cover, and the top of the operation knob protrudes from the back of the outer cover. The drive member is fixedly connected to the operation knob. Two circumferentially extending drive grooves are formed on the drive disk. The distance between each point on the drive groove and the axis of the drive disk gradually changes circumferentially. A connecting post is formed on the inner side of the sliding member, and the connecting post extends into the drive groove.

[0022] Furthermore, the clamping member is made of metal, and the sliding member is made of plastic.

[0023] Furthermore, when the pot lid includes a safety valve, a notch is formed on the side wall of the first valve body, and the safety valve core is slidably disposed in the second valve body. When the pot lid is placed on the pot body, the top of the safety valve core is higher than the notch when the pressure inside the pot body is greater than a preset pressure, and lower than the notch when the pressure inside the pot body is less than the preset pressure. A thrust member is formed on the sliding member, and the thrust member is positioned opposite to the notch. One end of the thrust member extends toward the center of the safety valve hole. The thrust member can extend into the safety valve hole with the movement of the sliding member when the top of the safety valve core is lower than the notch, and can be blocked by the safety valve core when the top of the safety valve core is higher than the notch.

[0024] The second aspect of this utility model discloses a pressure cooker, including a pot body and a pot lid. The pot lid adopts the pot lid of the first aspect. When the pot lid is placed on the pot body, the inner cavity of the pot body is connected to the outside through the pressure relief valve hole. When the pressure inside the pot body is greater than the preset pressure, the pressure relief valve core undergoes elastic deformation and opens the pressure relief valve hole.

[0025] The reasoning process for the beneficial effects of the pressure cooker provided by this utility model and the aforementioned pot lid is similar, and will not be repeated here.

[0026] 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 this is not intended to limit the technical solution 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

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] Figure 1 This is a front sectional view of the pot lid according to one embodiment of the present invention;

[0029] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0030] Figure 3 This is an exploded view of the pot lid according to one embodiment of the present invention;

[0031] Figure 4 This is a front sectional view of the pressure relief valve according to one embodiment of the present invention;

[0032] Figure 5 A bottom view of the clamp assembly mounting structure (drive gear structure) of one embodiment of the present invention.

[0033] Figure 6 This is a top view of the pot lid (drive disc structure) according to one embodiment of the present utility model.

[0034] Figure 7 This is a structural diagram of a clamp assembly according to one embodiment of the present invention;

[0035] Figure 8 This is a structural diagram of a clamp assembly according to one embodiment of the present invention;

[0036] Figure 9This is a structural diagram of the clamping component according to one embodiment of the present utility model;

[0037] Figure 10 This is a structural diagram of a sliding component (with gears and thrust members) according to one embodiment of the present invention.

[0038] Figure 11 This is a structural diagram of the sliding component according to one embodiment of the present invention;

[0039] Figure 12 This is a structural diagram of a sliding component (with a connecting column and a thrust member) according to one embodiment of the present invention.

[0040] Figure 13 This is an overall assembly drawing of a pressure cooker according to one embodiment of the present invention;

[0041] Figure 14 This is a structural diagram of the pot body according to one embodiment of the present utility model.

[0042] in,

[0043] 10. Pot lid; 11. Inner lid; 111. First pressure relief valve mounting hole; 112. Third connecting hole; 12. Outer lid; 121. Protrusion; 1211. Second pressure relief valve mounting hole; 122. Baffle; 123. Second connecting hole;

[0044] 13. Pressure relief valve; 131. Pressure relief valve body; 1311. First threaded part; 1312. Limiting support part; 1313. Flange; 132. Pressure relief valve core; 1321. Slot; 1322. Sealing part; 1323. Operating part; 133. Pressure relief valve hole;

[0045] 14. Clamp assembly; 141. Clamping component; 1411. Clamping section; 14111. Top plate; 14112. Vertical plate; 14113. Base plate; 1412. Connecting section; 14121. Snap-fit ​​hole;

[0046] 142. Sliding component; 1421. Clearance hole; 1422. Sliding support part; 1423. First mating part; 14231. Rack; 1424. Second mating part; 14241. Mating body; 14242. Snap-fit ​​boss; 14243. Limiting buckle; 1425. Thrust member; 1426. Discharge port; 1427. Connecting column;

[0047] 15. Drive assembly; 151. Operation knob; 152. Drive gear; 153. Drive disc; 1531. Drive slot;

[0048] 16. Safety valve; 161. Safety valve body; 1611. First valve body; 1612. Second valve body; 1613. Notch; 162. Safety valve core; 163. Safety valve orifice;

[0049] 20. Pot body; 21. Outer wall protrusion; 22. Handle. Detailed Implementation

[0050] 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.

[0051] 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 utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0052] See appendix Figures 1 to 4 One embodiment of this utility model discloses a pot lid 10, including an inner lid 11, an outer lid 12, and a pressure relief valve 13. The outer lid 12 is fastened to the back side of the inner lid 11 and fixedly connected to the inner lid 11. The pressure relief valve 13 is disposed between the inner lid 11 and the outer lid 12. A first pressure relief valve mounting hole 111 is formed on the inner lid 11, and a second pressure relief valve mounting hole 1211 is formed on the outer lid 12. The first pressure relief valve mounting hole 111 and the second pressure relief valve mounting hole 1211 are aligned. The pressure relief valve 13 is inserted into the first pressure relief valve mounting hole 111 and the second pressure relief valve mounting hole 1211, so that the inner lid 11 and the outer lid 12 are fixedly connected by the pressure relief valve 13, and the pressure relief valve hole 133 of the pressure relief valve 13 communicates the inner side of the inner lid 11 with the outer side of the outer lid 12.

[0053] In this embodiment, the pot lid 10 is configured as a double-layer structure (inner lid 11 and outer lid 12). During production, the inner lid 11 and the outer lid 12 are fixedly connected. During use, the front of the inner lid 11 faces the cooking cavity of the pot body 20.

[0054] In this embodiment, the pot lid 10 includes a pressure relief valve 13, which includes a pressure relief valve body 131 and a pressure relief valve core 132. During assembly and production, the pressure relief valve body 131 serves as a connector connecting the inner lid 11 and the outer lid 12. Compared with the pot lid 10 in related technologies, which has multiple valve components and threaded connectors located in the center of the pot lid 10, the pressure relief valve 13 in this embodiment functions as a valve on the one hand and as a connector on the other, avoiding the need for additional fasteners for connection and reducing the number of parts in the pot lid 10.

[0055] In this embodiment, the pressure cooker lid 10 has an improved structure of the pressure relief valve 13, which is essential, so that it has a connection function, thereby replacing the original connecting part and reducing the number of parts of the lid.

[0056] In this embodiment, the number of pressure relief valves 13 is not specifically limited. In actual use, it can be set to one. In this case, in order to ensure a better connection effect, the pressure relief valve 13 can be set in the center of the pot lid 10. Of course, the number of pressure relief valves 13 can also be set to two, three or more. In this case, multiple pressure relief valves 13 can be distributed circumferentially around the axis of the pot lid 10.

[0057] In this embodiment, the valve body function of the pressure relief valve is mainly realized by the pressure relief valve core 132. The inner wall of the pressure relief valve hole 133 is formed with a flange 1313. The pressure relief valve core 132 is formed with a groove 1321 that cooperates with the flange 1313. The flange 1313 is inserted into the groove 1321 and seals the pressure relief valve hole 133. When the pressure of the pressure relief valve core 132 exceeds the preset pressure, it can produce elastic deformation to make the flange 1313 disengage from the groove 1321. When the pot lid is in normal use, the pressure relief valve core 132 and the flange 1313 inside the pressure relief valve body 131 are in a locked state. At this time, the pressure relief valve core 132 seals the pressure relief valve hole 133. When the pot lid is placed on the pot body and the pressure inside the pot is too high (when the safety valve or pressure valve malfunctions), and it exceeds the preset pressure, the pressure relief valve core will undergo elastic deformation, causing the flange 1313 and the locking groove 1321 to disengage from each other. At this time, the inner cavity of the pot is connected to the outside through the first pressure relief valve mounting hole 111, the pressure relief valve hole 133 and the second pressure relief valve mounting hole 1211 to release air and avoid safety accidents.

[0058] In this embodiment, the pressure relief valve body 131 can be fixedly connected to the inner cover 11 and the outer cover 12 through threaded locking, but the specific location of the threaded connection is not limited. For example, one end of the pressure relief valve body 131 can be threaded to the inner cover 11, and the other end can be connected to the outer cover 12 by snap-fit, abutment, or threaded connection. Alternatively, the valve body itself can be set as a multi-segment structure, with the segments threadedly connected to each other. Each segment can be fitted to the inner cover 11 and the outer cover 12 respectively, as long as the inner cover 11 and the outer cover 12 can be locked and fixed by the threaded locking force during the connection and locking process.

[0059] In this embodiment, the pressure relief valve body 131 can also be fixedly connected to the inner cover 11 and the outer cover 12 by means of snap-fit ​​or plug-in.

[0060] In this embodiment, the pressure relief valve core 132 is made of silicone. In actual use, when the pressure inside the pot is high, the silicone pressure relief valve core 132 will undergo elastic deformation, thereby opening the pressure relief valve hole 133 to achieve pressure relief.

[0061] As one embodiment of this utility model, see the appendix. Figure 4 The pressure relief valve 13 includes a pressure relief valve body 131 and a pressure relief valve core 132. A pressure relief valve hole 133 is formed on the pressure relief valve body 131, and the pressure relief valve hole 133 penetrates the pressure relief valve body 131. The pressure relief valve core 132 is disposed in the pressure relief valve hole 133. The pressure relief valve body 131 includes a first threaded portion 1311 and a limiting support portion 1312. The inner wall of one of the first pressure relief valve mounting holes 111 and 1211 is formed with a second threaded portion that mates with the first threaded portion 1311. The second threaded portion and the first threaded portion 1311 are threadedly connected. The limiting support portion 1312 passes through the other of the first pressure relief valve mounting holes 111 and 1211 and abuts against the surfaces of the corresponding inner cover 11 and outer cover 12 to limit the separation of the inner cover 11 and outer cover 12 along the axial direction of the pot lid 10.

[0062] In this embodiment, the pressure relief valve body 131 is provided with a first threaded portion 1311 and a limiting support portion 1312. During use, the first threaded portion 1311 is threadedly connected to a second threaded portion on either the inner cover 11 or the outer cover 12. Conversely, the limiting support portion 1312 abuts against the other cover. Thus, the connection function of the pressure relief valve body 131 is similar to that of a bolt (the function of the first threaded portion 1311 corresponds to the threaded portion of a bolt, and the limiting support portion 1312 corresponds to the nut of a bolt), as shown in the attached figure. Figure 1 As shown, this facilitates the assembly of the pressure relief valve 13 onto the pot lid 10.

[0063] As one embodiment of this utility model, see the appendix. Figure 1 , 3 The outer cover 12 has a protrusion 121 protruding toward the inner cover 11. The protrusion 121 has a second pressure relief valve mounting hole 1211. The inner wall of the second pressure relief valve mounting hole 1211 has a second thread. The outer wall of the first end of the pressure relief valve body 131 is provided with the first thread 1311. The second end of the pressure relief valve body 131 is provided with the limiting support 1312. The inner cover 11 has a first pressure relief valve mounting hole 111. The pressure relief valve body 131 passes through the first pressure relief valve mounting hole 111 and makes the limiting support 1312 abut against the front of the inner cover 11.

[0064] In this embodiment, the outer cover 12 is provided with a protrusion 121, which is threadedly connected to the pressure relief valve body 131. Due to the limitations of the structure of the pot lid 10, the panel thickness of the inner cover 11 and the outer cover 12 is relatively thin. By providing the protrusion 121, the strength of the connection with the pressure relief valve body 131 can be improved.

[0065] In actual installation, a sealing ring can be installed at the joint surface of the limiting support 1312 and the inner cover 11 to achieve a better sealing effect.

[0066] As one embodiment of the present utility model, the pot lid 10 further includes a metal sleeve fixedly disposed in the second pressure relief valve mounting hole 1211. The metal sleeve is disposed in the second pressure relief valve mounting hole 1211, and a central through hole is formed on the metal sleeve. The inner wall of the central through hole is formed with the second threaded portion.

[0067] Since the outer cover 12 of the pot lid 10 is generally made of plastic in actual design, in order to ensure the connection strength, a metal sleeve can be added inside the second pressure relief valve mounting hole 1211 during actual installation. In this way, the pressure relief valve body 131 and the metal sleeve are connected by threads, which can improve the reliability of the threaded connection. The fixing between the metal sleeve and the second pressure relief valve mounting hole 1211 on the outer cover 12 can be injection molded as a whole, or it can be fixedly connected by threads or embedding.

[0068] As one embodiment of this utility model, see the appendix. Figure 2 , 3 The pot lid 10 also includes a safety valve 16. The safety valve 16 and the pressure relief valve 13 are disposed on opposite sides of the axis of the pot lid 10. The safety valve 16 includes a safety valve body 161 and a safety valve core 162. The safety valve body 161 includes a first valve body 1611 and a second valve body 1612. One end of the first valve body 1611 and one end of the second valve body 1612 are sleeved together and threadedly connected. A second connecting hole 123 corresponding to the first valve body 1611 is formed on the outer cover 12. A third connecting hole 112 corresponding to the second valve body 1612 is formed on the inner cover 11. The other end of the first valve body 1611 passes through the second connecting hole 123 and abuts against the back of the outer cover 12. The other end of the second valve body 1612 passes through the third connecting hole 112 and abuts against the front of the inner cover 11.

[0069] In this embodiment, the safety valve body 161 includes two parts: a first valve body 1611 and a second valve body 1612. The safety valve body 161 is configured as a split structure, wherein the first valve body 1611 and the second valve body 1612 are sleeved together and threadedly connected. In actual use, the first valve body 1611 and the second valve body 1612 are respectively connected to the inner cover 11 and the outer cover 12, and the inner cover 11 and the outer cover 12 are locked by the threaded connection of the first valve body 1611 and the second valve body 1612.

[0070] In this embodiment, when the safety valve body 161 is assembled with the inner cover 11 and the outer cover 12, the first valve body 1611 and the second valve body 1612 pass through the second connecting hole 123 and the third connecting hole 112 respectively and are threaded together at the part between the outer cover 12 and the inner cover 11. One end of the first valve body 1611 abuts against the back of the outer cover 12 (similar to the abutment of the nut of a bolt with the connector), and one end of the second valve body 1612 abuts against the front of the inner cover 11. In this way, under the action of threaded locking, the inner cover 11 and the outer cover 12 can be tightened and locked together.

[0071] In this embodiment, the safety valve 16 and the pressure relief valve 13 are located on opposite sides of the pot lid axis, which enables multi-point connection between the inner lid 11 and the outer lid 12, making the connection between the inner lid 11 and the outer lid 12 more stable.

[0072] As one embodiment of this utility model, see the appendix. Figure 4 The pressure relief valve core 132 includes an operating part 1323 and a sealing part 1322. The sealing part 1322 is connected to the operating part 1323. The diameter of the sealing part 1322 is larger than the diameter of the operating part 1323. The sealing part 1322 is disposed in the pressure relief valve hole 133. The groove 1321 is formed on the side wall of the sealing part 1322. One end of the operating part 1323 extends out of the pressure relief valve body 132.

[0073] In this embodiment, the pressure relief valve core 132 includes an operating part 1323 and a sealing part 1322. In actual installation, the operating part 1323 and the sealing part 1322 can be made of the same material or different materials. The sealing part 1322 can be made of silicone. When subjected to a force greater than the preset pressure, the sealing part will undergo elastic deformation, thereby opening the pressure relief valve hole 132. The diameter of the sealing part 1322 is larger than that of the operating part 1323, which facilitates the formation of a seal with the pressure relief valve hole 132. The operating part 1323 extends out of the pressure relief valve body 131 for easy operation.

[0074] As one embodiment of this utility model, see the appendix. Figure 1 , Figures 5 to 12An installation space is formed between the outer cover 12 and the inner cover 11. The pot lid 10 also includes a plurality of clamp assemblies 14 and a drive assembly 15 circumferentially distributed around the axis of the pot lid 10. The clamp assembly 14 includes a clamping member 141 and a sliding member 142. The sliding member 142 is located in the installation space and is slidably disposed on the inner cover 11 along the radial direction of the pot lid 10. The outer side of the sliding member 142 is detachably snapped to the clamping member 141. The inner side of the sliding member 142 is connected to the output end of the drive assembly 15. The drive assembly 15 is used to drive the plurality of clamp assemblies 14 to move synchronously in and out along the radial direction of the pot lid 10, and to enable the clamping member 141 to extend out of the installation space and lock with the outer wall of the pot body 20. A radially extending clearance hole 1421 is formed on the sliding member 142, and the pressure relief valve body 131 passes through the clearance hole 1421.

[0075] In this embodiment, the pot lid 10 includes a clamping assembly 14 and a driving assembly 15. In use, the operator can control the movement of the clamping assembly 14 by operating the driving assembly 15, so that when the pot lid 10 is placed on the pot body 20, the pot lid 10 and the pot body 20 can be locked or unlocked.

[0076] The clamp assembly 14 in this embodiment includes a sliding member 142 and a clamping member 141. The clamping member 141 and the sliding member 142 are detachably connected. The sliding member 142 is disposed in the installation space and can be installed on the inner cover 11 or the outer cover 12. The sliding member 142 provides a stable motion environment for the movement of the clamp assembly 14 in the radial direction. The clamping member 141 is fixedly connected to the sliding member 142 for locking with the pot body 20.

[0077] This embodiment does not specify how the clamping member 141 and the sliding member 142 are connected. In actual design, they can be connected by screws, or a structure that interlocks or plugs into each other can be designed to achieve a detachable connection.

[0078] In this embodiment, the clamp assembly 14 is configured as a split structure (clamping member 141 and sliding member 142). This allows for the rational design of the specific structure of clamping member 141 and sliding member 142 and the selection of appropriate materials for the specific functions of different parts (for example, clamping member 141 needs to be locked with pot body 20 and needs to ensure sufficient strength, so it can be made of metal; sliding member 142 needs to provide stable movement and has no strength requirements, so it can be made of a larger plastic structure). This makes the design more targeted and reduces production costs.

[0079] In one embodiment of this utility model, the clamping member 141 is made of metal, and the sliding member 142 is made of plastic. The metal clamping member 141 can ensure its own structural strength and locking strength with the pot body 20, while the plastic sliding member 142 can reduce production costs and the overall weight of the pot lid 10.

[0080] As one embodiment of this utility model, see the appendix. Figures 7 to 12 The sliding member 142 includes a sliding support portion 1422, a first docking portion 1423, and a second docking portion 1424. The first docking portion 1423 is disposed on the inner side of the sliding support portion 1422 and is connected to the driving assembly 15. The second docking portion 1424 is disposed on the outer side of the sliding support portion 1422. The second docking portion 1424 includes a docking body 14241 and a snap-fit ​​boss 14242 protruding from the surface of the docking body 14241. The clamping member 141 has a snap-fit ​​hole 14121 adapted to the snap-fit ​​boss 14242. The snap-fit ​​boss 14242 is inserted into the snap-fit ​​hole 14121. The length dimension of the snap-fit ​​hole 14121 and the snap-fit ​​boss 14242 is greater than the width dimension.

[0081] In this embodiment, the sliding member 142 and the clamping member 141 are detachably connected via the second mating part 1424 and the clamping member 141. The snap-fit ​​boss 14242 and the snap-fit ​​hole 14121 are interlocked, and the length dimension of the snap-fit ​​hole 14121 and the snap-fit ​​boss 14242 is greater than the width dimension, similar to an elongated hole structure. Thus, when the sliding member 142 and the clamping member 141 are interlocked, there will be no relative movement in the circumferential direction.

[0082] It should be noted that the shapes of the snap-fit ​​hole 14121 and the snap-fit ​​boss 14242 in this embodiment can be set as square or flat. Of course, matching keyways and key mating structures can also be provided on the snap-fit ​​hole 14121 and the snap-fit ​​boss 14242, as long as the two can be restricted to move relative to each other in the circumferential direction when they are inserted into each other.

[0083] In this embodiment, the sliding member 142 of the clamp assembly 14 is provided with a clearance hole 1421, and the pressure relief valve 13 is disposed in the clearance hole 1421. In this way, the sliding of the clamp assembly 14 will not be interfered with by the pressure relief valve 13. Moreover, the two oppositely arranged clamp assemblies 14, pressure relief valve 13 and safety valve 16 are correspondingly arranged and structurally matched with each other, which can improve the overall compactness of the pot lid 10.

[0084] As one embodiment of this utility model, see the appendix. Figures 10 to 12The second docking part 1424 further includes two limiting buckles 14243. The two limiting buckles 14243 are disposed on opposite sides of the engaging protrusion 14242. One end of the limiting buckle 14243 is connected to the docking body 14241, and the other end forms a protrusion opposite to the surface of the docking body 14241. The protrusion and the docking body 14241 clamp the clamping member 141 to achieve a fixed connection between the sliding member 142 and the clamping member 141.

[0085] In this embodiment, the limiting buckle 14243 can cooperate with the docking body 14241 to clamp and fix the docking part of the clamping member 141, thereby limiting the vertical movement of the clamping member 141 and the sliding member 142. The structure of the limiting buckle 14243 cooperating with the locking boss 14242 makes the connection between the sliding member 142 and the clamping member 141 more reliable. It also realizes that the clamping member 141 and the sliding member 142 are connected by their own structure without the need for additional connecting parts, thereby further reducing the number of parts required for the pot lid 10 in this utility model.

[0086] In this invention, the sliding member 142 is made of plastic, and the clamping member 141 is made of metal. The size of the snap-fit ​​hole 14121 can be set to be slightly smaller than the size of the snap-fit ​​boss 14242. During installation, the snap-fit ​​boss 14242 is deformed to a certain extent (plastic parts are easily deformed) and then inserted into the snap-fit ​​hole 14121, which can improve the stability of the connection. Moreover, the limiting buckle 14243 can also be set to be a structure that fits more tightly with the clamping member 141 (the plastic part will deform under force and assemble with the clamping member 141), which can improve the reliability of the assembly of the clamping member 141 and the sliding member 142.

[0087] As one embodiment of this utility model, see the appendix. Figures 7 to 9 The clamping member 141 includes a clamping section 1411 and a connecting section 1412. The clamping section 1411 is used to lock the pot body 20. The connecting section 1412 has the snap-fit ​​hole 14121. The clamping section 1411 is constructed in an arc shape around the axis of the pot lid 10. The connecting section 1412 is located in the middle part of the arc of the clamping section 1411. The surface of the connecting section 1412 is in contact with the surface of the docking body 14241.

[0088] In this embodiment, the clamping member 141 is divided into a clamping section 1411 (for locking with the pot body 20) and a connecting section 1412 (for connecting with the sliding member 142). The clamping section 1411 is set with an arc-shaped structure, which can increase the engagement length between the clamping section 1411 and the pot body 20, making the locking between the pot lid 10 and the pot body 20 more stable. The connecting section 1412 is located in the middle part of the clamping section 1411, which can make the clamping member 141 be balanced by force during movement, making the movement more stable.

[0089] It is conceivable that, in actual setup, in order to further improve the stability of the movement of the clamping member 141, when the arc length of the clamping segment 1411 is large, multiple connection points with the connecting segment 1412 can be set in the circumferential direction of the clamping member 141, so as to realize the multi-point connection between the clamping member 141 and the sliding member 142, thereby improving the connection strength and the stability of the clamping member 141 as it moves with the sliding member 142.

[0090] As one embodiment of this utility model, see the appendix. Figure 9 The clamping section 1411 includes a top plate 14111, a vertical plate 14112, and a bottom plate 14113. The top plate 14111, the vertical plate 14112, and the bottom plate 14113 are all constructed in an arc shape around the axis of the pot lid 10. The top plate 14111 is disposed on the top side of the vertical plate 14112 and is fitted against the upper end face of the inner cover 11. The bottom plate 14113 is disposed at the bottom of the vertical plate 14112 and is spaced apart from the top plate 14111. The bottom plate 14113 is used to extend into the bottom side of the outer wall protrusion 21 of the pot body 20 to lock the pot body 20. The connecting section 1412 is disposed at the middle position of the top plate 14111 in the circumferential direction. The vertical plate 14112 and the bottom plate 14113 are formed with a discharge port 1426 corresponding to the connecting section 1412.

[0091] In this embodiment, the clamping section 1411 includes a top plate 14111, a vertical plate 14112, and a bottom plate 14113, and the cross-sections of the top plate 14111, the vertical plate 14112, and the bottom plate 14113 are formed as shown in the attached figure. Figure 9 The U-shaped structure shown can improve the structural strength of the clamping member 141 itself, thereby improving the locking strength between the lid 10 and the pot body 20.

[0092] In this embodiment, the clamping member 141 can be formed by bending a flat plate structure to form the structure of the clamping member 141 in this embodiment (arc and U-shaped cross-section structure). In this embodiment, the positions of the discharge port 1426 and the connecting section 1412 are designed to correspond. During production and blanking, the connecting section 1412 of two adjacent clamping members 141 corresponds to the discharge port 1426. This can make full use of raw materials and avoid material waste.

[0093] As one embodiment of this utility model, see the appendix. Figure 5 One of the inner cover 11 and the outer cover 12 is provided with a guide mechanism located in the installation space. The guide mechanism includes two spaced baffles 122, and a radial sliding channel is formed between the two baffles 122. The sliding member 142 is slidably disposed in the sliding channel, and the two sides of the sliding member 142 are respectively attached to the baffles 122 on the corresponding sides.

[0094] In this embodiment, the inner cover 11 or the outer cover 12 is provided with a guide mechanism for guiding the movement of the clamp assembly 14. In use, the sliding member 142 is disposed between two baffles 122. The two baffles 122 can limit the sliding member 142, so that the sliding member 142 can only move within the set space, thereby avoiding the slippage of the clamp assembly 14 during the movement and improving the stability of the movement.

[0095] It should be noted that the guide mechanism of the two spaced baffles 122 in this embodiment is only one embodiment of the present invention. In actual installation, it can also be set as other types of guide structures, such as groove and matching structure set in slider, guide rod structure through slider 142, etc., as long as it can achieve stable movement of clamp assembly 14.

[0096] As one embodiment of this utility model, see the appendix. Figure 5 The drive assembly 15 includes an operation knob 151 and a drive gear 152. The operation knob 151 is rotatably disposed on the outer cover 12, and the top end of the operation knob 151 protrudes from the back of the outer cover 12. The drive gear 152 is fixedly connected to the operation knob 151 and is located between the two clamp assemblies 14. One end of the inner side of the sliding member 142 is formed with a rack 14231 that meshes with the drive gear 152. The racks 14231 on the two sliding members 142 are located on opposite sides of the drive gear 152.

[0097] The drive assembly 15 in this embodiment includes an operation knob 151 and a drive gear 152. The operation knob 151 is rotatably mounted on the outer cover 12. The part of the operation knob 151 protruding from the outer cover 12 is convenient for the operator to operate. The operation knob 151 and the drive gear 152 are fixedly connected. Specifically, in the design, the operation knob 151 and the drive gear 152 can be connected by screws or fixedly connected by a snap-fit ​​structure.

[0098] In this embodiment, the drive gear 152 is connected to the clamp assembly 14 within the installation space and enables transmission. The moving parts of the pot lid 10 are hidden, which can improve the overall appearance of the pot lid 10 and avoid the fear caused to the user during use. At the same time, it can avoid the influence of impurities on the moving parts.

[0099] In this embodiment, the operating knob 151 and the drive gear 152 transmit driving force through the meshing of the gear and rack 14231. Moreover, by setting the position of the rack 14231 on the two sliding members 142 (set on opposite sides of the drive gear 152), the rotation of the drive gear 152 can drive the two clamping assemblies 14 to move synchronously in opposite directions or towards each other.

[0100] As one embodiment of this utility model, see the appendix. Figure 6 The drive assembly 15 includes an operation knob 151 and a drive disk 153. The operation knob 151 is rotatably disposed on the outer cover 12, and the top of the operation knob 151 protrudes from the back of the outer cover 12. The drive disk 153 is fixedly connected to the operation knob 151. Two circumferentially extending drive grooves 1531 are formed on the drive disk 153. The distance between each point on the drive groove 1531 and the axis of the drive disk 153 gradually changes circumferentially. A connecting post 1427 is formed on the inner side of the sliding member 142, and the connecting post 1427 extends into the drive groove 1531.

[0101] In this embodiment, the drive assembly 15 operates the knob 151 and the drive disk 153. The setting of the knob 151 is the same as that described above. The movement of the clamp assembly 14 in this embodiment is driven by the drive disk 153. The drive disk 153 is provided with drive grooves 1531 corresponding to the number of clamp assemblies 14. The sliding member 142 is provided with connecting posts 1427 that cooperate with the drive grooves 1531. The connecting posts and drive grooves 1531 are inserted and rotated together. Thus, when the drive disk 153 rotates, the drive grooves 1531 can drive the clamp assembly 14 to reciprocate linearly.

[0102] As one embodiment of this utility model, see the appendix. Figures 1 to 3A notch is formed on the side wall of the first valve body. The safety valve core 162 is slidably disposed in the second valve body. When the pot lid 10 is covered by the pot body 20, the top of the safety valve core 162 is higher than the notch 1613 when the pressure inside the pot body 20 is greater than the preset pressure, and lower than the notch when the pressure inside the pot body 20 is less than the preset pressure. A thrust member 1425 is formed on the sliding member 142. The thrust member 1425 is positioned opposite to the notch. One end of the thrust member 1425 extends toward the center of the safety valve hole. The thrust member 1425 can extend into the safety valve hole 163 with the movement of the sliding member 142 when the top of the safety valve core 162 is lower than the notch, and can be blocked by the safety valve core 162 when the top of the safety valve core is higher than the notch.

[0103] The working principle of the safety valve is that when the pressure inside the pot 20 increases to a certain value, the safety valve core 162 of the safety valve 13 will move up and down in the safety valve hole 163, thereby opening the safety valve hole 163 of the safety valve and venting the gas inside the pot 20.

[0104] In this embodiment, a notch 1613 is provided on the safety valve body 161, which has a cooperating relationship with the clamp assembly 14, and a thrust member 1425 is formed on the sliding member 142 of the corresponding clamp assembly 14 to cooperate with the notch 1613.

[0105] When the pressure inside the pot 20 is low, the safety valve core 162 of the safety valve is in a low position (the top of the safety valve core 162 is lower than the notch 1613). At this time, the thrust member 1425 can enter the safety valve hole 163 through the notch 1613. The safety valve core 162 will not block the thrust member 1425. At this time, the clamp assembly 14 can slide with the operator's operation to lock or unlock. When the pressure inside the pot 20 is too high, under the action of air pressure, the safety valve core 162 of the safety valve will be pushed up to a high position (the safety valve core 162 is opposite to the notch 1613). Due to the blocking effect of the safety valve core 162 of the safety valve, the thrust member 1425 cannot enter the safety valve hole 163 through the notch, which is equivalent to limiting the range of motion of the clamp assembly 14, so that the clamp assembly 14 cannot unlock the pot 20. This achieves the effect that the lid 10 cannot be opened when the pressure inside the pot 20 is too high, thus ensuring the safety of the pressure cooker.

[0106] The second aspect of this utility model discloses a pressure cooker, see appendix. Figure 13 , 14The container includes a pot body 20 and a pot lid 10. The pot lid 10 adopts the first aspect of the pot lid 10. When the pot lid 10 is placed on the pot body 20, the inner cavity of the pot body 20 is connected to the outside through the pressure relief valve hole 133. When the pressure inside the pot body is greater than the preset pressure, the pressure relief valve core 132 undergoes elastic deformation and opens the pressure relief valve hole 133.

[0107] In the case where the lid 10 has the clamping assembly 14 mentioned above, the outer wall of the pot body 20 of this utility model can be provided with an outer wall protrusion 21 that cooperates with the clamping assembly 14. The clamping member 141 of the clamping assembly 14 hooks from the outside of the pot body 20 to the bottom of the outer wall protrusion 21 to lock the lid 10 and the pot body 20 together.

[0108] Of course, it is conceivable that a handle 22 could also be installed on the outer wall of the pot body 20, as shown in the attached figure. Figure 13 , 14 As shown, this makes the pressure cooker easy to move.

[0109] 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 pot lid, comprising an inner lid (11), an outer lid (12), and a pressure relief valve (13), wherein the outer lid (12) is fastened to the back side of the inner lid (11) and fixedly connected to the inner lid (11), and the pressure relief valve (13) is disposed between the inner lid (11) and the outer lid (12), characterized in that, The inner cover (11) has a first pressure relief valve mounting hole (111), and the outer cover (12) has a second pressure relief valve mounting hole (1211). The first pressure relief valve mounting hole (111) and the second pressure relief valve mounting hole (1211) are aligned. The pressure relief valve (13) is inserted into the first pressure relief valve mounting hole (111) and the second pressure relief valve mounting hole (1211) so that the inner cover (11) and the outer cover (12) are fixedly connected by the pressure relief valve (13), and the pressure relief valve hole (133) of the pressure relief valve (13) connects the inner side of the inner cover (11) with the outer side of the outer cover (12).

2. The pot lid as described in claim 1, characterized in that, The pressure relief valve (13) includes a pressure relief valve body (131) and a pressure relief valve core (132). A pressure relief valve hole (133) is formed on the pressure relief valve body (131), and the pressure relief valve hole (133) penetrates the pressure relief valve body (131). The pressure relief valve core (132) is disposed in the pressure relief valve hole (133). The pressure relief valve body (131) includes a first threaded portion (1311) and a limiting support portion (1312). The first pressure relief valve mounting hole (111) and the second pressure relief valve mounting hole (132) are connected. The inner wall of one of the two parts (211) is formed with a second threaded part that mates with the first threaded part (1311). The second threaded part and the first threaded part (1311) are threaded together. The limiting support part (1312) passes through the other of the first pressure relief valve mounting hole (111) and the second pressure relief valve mounting hole (1211) and abuts against the surfaces of the corresponding inner cover (11) and outer cover (12) to limit the separation of the inner cover (11) and outer cover (12) along the axial direction of the pot lid (10).

3. The pot lid as described in claim 2, characterized in that, The outer cover (12) has a protrusion (121) protruding toward the inner cover (11), the protrusion (121) has a second pressure relief valve mounting hole (1211), the inner wall of the second pressure relief valve mounting hole (1211) has a second thread, the outer wall of the first end of the pressure relief valve body (131) is provided with the first thread (1311), the second end of the pressure relief valve body (131) is provided with the limiting support (1312), the limiting support (1312) passes through the first pressure relief valve mounting hole (111) and abuts against the front of the inner cover (11).

4. The pot lid as described in claim 3, characterized in that, The pot lid (10) also includes a metal sleeve fixedly disposed in the second pressure relief valve mounting hole (1211). The metal sleeve is disposed in the second pressure relief valve mounting hole (1211), and a central through hole is formed on the metal sleeve. The inner wall of the central through hole is formed with the second threaded portion.

5. The pot lid as described in any one of claims 2-4, characterized in that, The pressure relief valve (13) has a pressure relief valve core (132) including an operating part (1323) and a sealing part (1322). The sealing part (1322) and the operating part (1323) are connected. The diameter of the sealing part (1322) is larger than the diameter of the operating part (1323). The sealing part (1322) is disposed in the pressure relief valve hole (133). One end of the operating part (1323) extends out of the pressure relief valve body (131).

6. The pot lid as described in any one of claims 1-4, characterized in that, The pot lid also includes a safety valve (16). The safety valve (16) and the pressure relief valve (13) are located on opposite sides of the pot lid axis. The safety valve includes a safety valve body (161) and a safety valve core (162). The safety valve body (161) includes a first valve body (1611) and a second valve body (1612). One end of the first valve body (1611) and one end of the second valve body (1612) are sleeved together and threaded together. A second connecting hole (123) corresponding to the first valve body (1611) is formed on the outer cover (12). A third connecting hole (112) corresponding to the second valve body (1612) is formed on the inner cover (11). The other end of the first valve body (1611) passes through the second connecting hole (123) and abuts against the back of the outer cover (12). The other end of the second valve body (1612) passes through the third connecting hole (112) and abuts against the front of the inner cover (11).

7. The pot lid as described in any one of claims 1 to 4, characterized in that, An installation space is formed between the outer cover (12) and the inner cover (11). The pot lid (10) also includes a plurality of clamp assemblies (14) and a drive assembly (15) circumferentially distributed around the axis of the pot lid (10). The clamp assembly (14) includes a clamping member (141) and a sliding member (142). The sliding member (142) is located in the installation space and is slidably disposed on the inner cover (11) along the radial direction of the pot lid (10). The outer side of the sliding member (142) is compatible with the clamping member (141). The sliding member (142) is connected to the output end of the drive assembly (15) by disassembly and snap-fit. The drive assembly (15) is used to drive multiple clamp assemblies (14) to move synchronously in and outward along the radial direction of the pot lid (10), and to enable the clamping member (141) to extend out of the installation space and lock with the outer wall of the pot body (20). A relief hole (1421) extending in the radial direction is formed on the sliding member, and the pressure relief valve body (131) of the pressure relief valve (13) passes through the relief hole (1421).

8. The pot lid as described in claim 7, characterized in that, One of the inner cover (11) and the outer cover (12) is provided with a guide mechanism located in the installation space. The guide mechanism includes two spaced baffles (122) and a radial sliding channel is formed between the two baffles (122). The sliding member (142) is slidably disposed in the sliding channel, and the two sides of the sliding member (142) are respectively attached to the baffles (122) on the corresponding sides.

9. The pot lid as described in claim 8, characterized in that, The drive assembly (15) includes an operation knob (151) and a drive gear (152). The operation knob (151) is rotatably disposed on the outer cover (12), and the top of the operation knob (151) protrudes from the back of the outer cover (12). The drive gear (152) is fixedly connected to the operation knob (151) and is located between the two clamp assemblies (14). One end of the inner side of the sliding member (142) is formed with a rack (14231) that meshes with the drive gear (152). The racks (14231) on the two sliding members (142) are located on opposite sides of the drive gear (152).

10. A pressure cooker, comprising a pot body (20) and a pot lid (10), characterized in that, The pot lid (10) is the pot lid (10) according to any one of claims 1 to 9. When the pot lid (10) is placed on the pot body (20), the inner cavity of the pot body (20) is connected to the outside through the pressure relief valve hole (133) of the pressure relief valve (13). When the pressure inside the pot body is greater than the preset pressure, the pressure relief valve core (132) of the pressure relief valve (13) undergoes elastic deformation and opens the pressure relief valve hole (133) of the pressure relief valve (13).

Images