Combination valve, pressure cooker cover and pressure cooker

Abstract

The utility model discloses a combination valve, a pressure cooker cover and a pressure cooker, and relates to the field of pressure cooks.The combination valve comprises a pressure limiting valve assembly and a safety valve assembly, the safety valve assembly comprises at least one safety valve, the pressure limiting valve assembly comprises a valve cover and a valve element, and a valve cavity with an exhaust port is formed in the valve cover; the valve element is movably arranged in the valve cavity so as to be switched between a first position and a second position, and an air inlet channel is formed in the valve cover. When the valve element is located at the first position, the air inlet channel is closed by the valve element, and when the valve element is located at the second position, the air inlet channel is opened by the valve element. When the pressure borne by the valve element is larger than a preset value, the valve element moves to the second position from the first position; an installation hole corresponding to a safety valve of the safety valve assembly is formed in the valve cover, the safety valve assembly is installed in the installation hole, the opening pressure of the safety valve assembly is larger than that of the pressure limiting valve assembly, and an outlet of the installation hole and an outlet of the air inlet channel face the same direction. The utility model has the advantages of high integration level and convenient installation.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure cookers, in particular to a combined valve, a pressure cooker cover and a pressure cooker. Background Art

[0002] The pressure cooker is a tool for cooking food quickly. It is energy-saving, time-saving, and has multiple cooking functions, and is favored by consumers.

[0003] In order to ensure the safety of pressure cookers during use, existing pressure cookers generally include a variety of valves such as a pressure limiting valve and a safety valve. These valve structures are mostly independently arranged, occupying more space, being more complicated to install, and being difficult to disassemble and clean. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a combination valve, a pressure cooker cover and a pressure cooker, which have the advantages of high integration and convenient installation.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A combination valve comprises a pressure-limiting valve assembly and a safety valve assembly, the safety valve assembly comprises at least one safety valve, the pressure-limiting valve assembly comprises a valve cover and a valve core, a valve cavity having an exhaust port is formed in the valve cover, the valve core is movably arranged in the valve cavity to switch between a first position and a second position, and an air intake passage is arranged on the valve cover; when the valve core is in the first position, the valve core closes the air intake passage, and when the valve core is in the second position, the valve core opens the air intake passage; when the pressure applied to the valve core in a direction away from the air intake passage is greater than a preset value, the valve core moves from the first position to the second position; the valve cover is formed with a mounting hole corresponding to the safety valve of the safety valve assembly, the safety valve assembly is mounted in the mounting hole, the opening pressure of the safety valve assembly is greater than the opening pressure of the pressure-limiting valve assembly, and the outlet of the mounting hole faces in the same direction as the outlet of the air intake passage.

[0007] In the present application, a combination valve is proposed which is integrated with a pressure limiting valve assembly and a safety valve assembly. At least one pressure limiting valve is arranged on the valve cover of the pressure limiting valve assembly. The combination valve is exquisitely designed, simple in structure, small in space occupation and volume, and can play the greatest role in a limited space. It is particularly suitable for application scenarios with limited installation space. Moreover, the combination valve can realize the combination of multiple valves to meet the requirements of various working environments. This flexibility enables the combination valve to adapt to different needs and realize multiple functions. The structure of each valve is simple and easy to disassemble, so it is easy to clean.

[0008] Optionally, the safety valve assembly includes a first safety valve, the first safety valve includes a valve seat and a spherical valve flap arranged in the valve seat, the valve seat is provided with an air inlet, and the valve flap is used to close or open the air inlet.

[0009] Optionally, a spring is disposed in the valve seat, one end of the spring is fixed to the inner wall of the valve seat, and the other end of the spring is fixed to the top surface of the valve flap and forces the valve flap to maintain sealing contact with the air inlet.

[0010] Optionally, the mounting hole comprises a first mounting hole opened at the bottom of the valve cover, and the valve seat is inserted into the first mounting hole.

[0011] Optionally, the safety valve assembly includes a second safety valve, the second safety valve includes an elastic valve body, the mounting hole includes a second mounting hole opened at the bottom of the valve cover, and the elastic valve body is interference fit with the second mounting hole.

[0012] Optionally, the second safety valve further includes an elastic band having one end connected to the elastic valve body, and the other end of the elastic band is connected to the valve cover.

[0013] Optionally, an anti-blocking member connected to the air inlet passage is disposed on the outer surface of the valve cover, and the anti-blocking member is provided with at least one anti-blocking groove.

[0014] Optionally, the valve core is constructed to be spherical. When the valve core is in a first position, the valve core abuts against the air intake passage. When the valve core is in the second position, the valve core is separated from the air intake passage.

[0015] In addition, the utility model also provides a pressure cooker cover, comprising a body and a combination valve, the side wall of the valve cover is provided with a clamping groove, the valve cover is clamped on the body through the clamping groove, and the combination valve comprises any one of the above-mentioned combination valves. The reasoning process of the beneficial effects of the combination valve provided by the utility model and the above-mentioned combination valve is similar, and will not be repeated here.

[0016] In addition, the utility model also provides a pressure cooker, comprising a cooker body and a cooker cover, wherein the cooker cover comprises the aforementioned pressure cooker cover.

[0017] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully presented in conjunction with the drawings, but it is not a limitation of the technical solution of the utility model. In addition, these features, elements and components appearing in each of the following texts and drawings are multiple, and are marked with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Figure 1 It is a cross-sectional view of the pressure cooker cover in the utility model;

[0020] Figure 2 It is a cross-sectional view of the combined valve in the utility model;

[0021] Figure 3 for Figure 2 Explosion diagram of

[0022] Figure 4 This is a schematic structural diagram of the pressure cooker cover in the utility model from another angle;

[0023] Figure 5 It is a structural schematic diagram of another embodiment of the combination valve in the utility model.

[0024] Among them, 1. pressure-limiting valve assembly; 11. valve cover; 111. valve chamber; 112. exhaust port; 113. air inlet passage; 114. first mounting hole; 115. second mounting hole; 116. positioning groove; 12. valve core; 121. lifting twist; 13. anti-blocking part; 131. anti-blocking groove; 2. safety valve assembly; 21. first safety valve; 211. valve seat; 2111. air inlet; 2112. spring; 212. valve disc; 22. second safety valve; 221. elastic valve body; 222. elastic band; 3. main body. DETAILED DESCRIPTION

[0025] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0026] References in this specification to "one embodiment" or "an example" or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment of the present patent disclosure. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0027] Example:

[0028] A combination valve comprises a pressure-limiting valve assembly 1 and a safety valve assembly 2. The pressure-limiting valve assembly 1 comprises a valve cover 11 and a valve core 12. A valve cavity 111 having an exhaust port 112 is formed in the valve cover 11. The valve core 12 is movably arranged in the valve cavity 111 to switch between a first position and a second position. An air inlet passage 113 is arranged on the valve cover 11. When the valve core 12 is in the first position, the valve core 12 closes the air inlet passage 113. When the valve core 12 is in the second position, the valve core 12 opens the air inlet passage 113. When the pressure in the direction away from the air inlet passage applied to the valve core 12 is greater than a preset value, the valve core 12 moves from the first position to the second position. The valve cover 11 is formed with a mounting hole corresponding to the safety valve of the safety valve assembly 2. The safety valve assembly 2 is installed in the mounting hole. The opening pressure of the safety valve assembly 2 is greater than the opening pressure of the pressure-limiting valve assembly 1. The outlet of the mounting hole faces the same direction as the outlet of the air inlet passage 113.

[0029] like Figure 1 and Figure 2 As shown, in this embodiment, a combined valve suitable for being installed on a pressure cooker cover is provided, the combined valve comprising a pressure limiting valve assembly 1 and a safety valve assembly 2, the pressure limiting valve assembly 1 comprising a hollow valve housing 11 having a valve cavity 111 and a valve core 12 movably arranged in the valve cavity 111 for switching positions, the valve cavity 111 is provided with an exhaust port 112 penetrating the valve housing 11 for relieving pressure inside the pressure cooker. An air inlet channel 113 is provided on the valve housing 11, so that water vapor in the pressure cooker can enter the valve cavity 111 through the air inlet channel 113 and be discharged from the valve cavity 111 through the exhaust port 112. The valve core 12 is movably arranged in the valve cavity 111 so as to open or close the air inlet channel 113. When the valve core 12 is in the first position, it can abut against the air inlet channel 113 and close the air inlet channel 113. When the valve core 12 is in the second position, it can separate from the air inlet channel 113 and open the air inlet channel 113. When the pressure of the valve core 12 toward the valve cavity 111 is greater than the preset value, that is, the pressure of the water vapor in the pressure cooker is greater than the preset value, the valve core 12 will move from the first position to the second position, that is, the valve core 12 will open the air inlet channel 113 under the action of the water vapor, and automatically release the pressure of the pressure cooker. At the same time, the safety valve assembly 2 is also installed on the valve cover 11 of the pressure limiting valve assembly 1. The safety valve assembly 2 and the pressure limiting valve assembly 1 are combined together, which reduces the volume of the two, improves the integration, and is simpler and more convenient to install and maintain. In addition, the safety valve assembly 2 and the pressure limiting valve assembly 1 do not need to be separately arranged on the pot cover, thereby improving the sealing performance of the pot cover.

[0030] In this embodiment, the valve cover 11 and the valve core 12 are both roughly cylindrical. The shape of the valve cover 11 is usually designed according to its application environment and specific needs, so there is no unified standard shape. In other embodiments, the valve cover 11 can also be configured as a square, rectangular or other irregular shape, depending on the size, type and installation location of the valve.

[0031] The combination valve in this application is exquisitely designed, simple in structure, small in space and volume, and can play the greatest role in a limited space, and is particularly suitable for application scenarios with limited installation space. In addition, the combination valve can realize the combination of multiple valves to meet the requirements of various working environments. This flexibility enables the combination valve to adapt to different needs and realize multiple functions.

[0032] like Figure 2 and Figure 3 As shown, the safety valve assembly 2 includes a first safety valve 21 , which includes a valve seat 211 and a spherical valve flap 212 disposed in the valve seat 211 . The valve seat 211 is provided with an air inlet 2111 , and the valve flap 212 is used to close or open the air inlet 2111 .

[0033] In this embodiment, the safety valve assembly 2 includes a first safety valve 21, and the first safety valve 21 includes a valve seat 211 and a spherical valve flap 212 located in the valve seat 211, and the valve flap 212 is used to close or open the air inlet 2111 of the valve seat 211. The design of the sphere as the valve flap 212 makes the opening and closing action of the safety valve smoother and more reliable. The sphere has a smooth surface and can move smoothly when the pressure changes, thereby accurately controlling the opening and closing of the air inlet 2111. This design helps to reduce the wear and leakage of the valve and improve the service life and reliability of the safety valve. In this embodiment, the shape of the valve seat 211 is cylindrical, and in other embodiments, the valve seat 211 can also be constructed as a square, a rectangle, etc.

[0034] A spring 2112 is disposed in the valve seat 211 , one end of the spring 2112 is fixed to the inner wall of the valve seat 211 , and the other end of the spring 2112 is fixed to the top surface of the valve flap 212 and forces the valve flap 212 to maintain sealing contact with the air inlet 2111 .

[0035] In this embodiment, a spring 2112 for forcing the valve flap 212 to contact the air inlet 2111 is also provided in the valve seat 211. The spherical valve flap 212 can effectively close the air inlet 2111, ensuring the sealing of the pressure cooker when the air inlet 2111 is closed. The elastic force of the spring 2112 can continuously act on the valve flap 212, so that it fits tightly on the air inlet 2111 to form an effective seal. This sealing method can not only effectively prevent the leakage of water vapor when the air inlet 2111 is closed, but also reduce the risk of sealing failure caused by vibration or pressure fluctuation, thereby improving the sealing and safety of the entire system. The design of the spring 2112 also has a certain buffering effect. During the opening and closing process of the air inlet 2111, the spring 2112 can absorb and relieve part of the impact force, reduce the direct collision between the valve flap 212 and the valve seat 211, thereby reducing wear and failure rate. This helps to extend the service life of the safety valve and improve the stability and reliability of the pressure cooker.

[0036] The mounting holes include a first mounting hole 114 opened at the bottom of the valve cover 11 , and the valve seat 211 is inserted into the first mounting hole 114 .

[0037] In this embodiment, the valve seat 211 and the first mounting hole 114 are closely matched, and a stable connection between the valve seat 211 and the valve cover 11 is achieved. By inserting the valve seat 211 into the first mounting hole 114, a close match is formed between the valve seat 211 and the valve cover 11, thereby enhancing the structural stability of the entire combination valve. This stable connection helps prevent the first safety valve 21 from loosening or falling off due to vibration or external force during operation, thereby ensuring the normal operation of the combination valve and the safety of the pressure cooker.

[0038] The safety valve assembly 2 includes a second safety valve 22 . The second safety valve 22 includes an elastic valve body 221 . The mounting hole includes a second mounting hole 115 opened at the bottom of the valve cover 11 . The elastic valve body 221 is interference-fitted with the second mounting hole 115 .

[0039] In this embodiment, the elastic valve body 221 is constructed as a silicone plug. The interference fit ensures a tight connection between the elastic valve body 221 and the second mounting hole 115. The interference fit means that the outer diameter of the elastic valve body 221 is slightly larger than the inner diameter of the second mounting hole 115. During the installation process, the elastic valve body 221 is compressed and deformed, thereby forming a tight fit with the second mounting hole 115, effectively improving the sealing performance of the second safety valve 22. When the pressure in the pressure cooker exceeds the preset value, the elastic valve body 221 completely enters the valve cavity 111, and the pressure cooker is quickly depressurized through the second mounting hole 115. In other embodiments, the elastic valve body 221 can also be an elastic material such as a rubber plug.

[0040] The second safety valve 22 further includes an elastic band 222 with one end connected to the elastic valve body 221 , and the other end of the elastic band 222 is connected to the valve cover 11 .

[0041] In the present embodiment, the second safety valve 22 further includes an elastic band 222 integrally connected to the elastic valve body 221, and the elastic band 222 is conducive to dragging the elastic valve body 221 out of the valve cavity 111, so as to facilitate the resetting of the elastic valve body 221. The elastic band 222 directly connects the valve body and the valve cover 11, without the need for additional connectors or fixing devices, so the installation process is simpler and faster. At the same time, when maintenance or replacement of parts is required, it can also be more easily disassembled and assembled, thereby improving work efficiency. In other embodiments, the elastic band 222 may not be provided on the elastic valve body 221, and when the elastic valve body 221 enters the valve cavity 111, the valve cavity 111 needs to be opened to resetting the elastic valve body 221.

[0042] It should be noted that, in the present embodiment, the valve cover 11 is provided with both the first safety valve 21 and the second safety valve 22 . In other embodiments, the valve cover 11 may be provided with only the first safety valve 21 or only the second safety valve 22 .

[0043] like Figure 4 As shown, the outer surface of the valve cover 11 is provided with an anti-blocking member 13 which is in communication with the air inlet passage 113 , and the anti-blocking member 13 is provided with at least one anti-blocking groove 131 .

[0044] In this embodiment, an anti-blocking member 13 is provided below the air inlet channel 113, which can effectively prevent the air inlet channel 113 from being blocked. During the operation of the pressure limiting valve, impurities or particulate matter in the pressure cooker may accumulate in the air inlet channel 113, causing the air inlet channel 113 to be blocked, thereby affecting the normal operation of the pressure limiting valve. An anti-blocking groove 131 is provided on the anti-blocking member 13, which can provide a bypass path for impurities, thereby avoiding the occurrence of blockage. In this embodiment, a cross-shaped linear groove is provided on the anti-blocking member 13. In other embodiments, the anti-blocking groove 131 can also be configured as a wave shape or a spiral shape.

[0045] The valve core 12 is spherical in shape. When the valve core 12 is in the first position, the valve core 12 abuts against the intake passage 113 . When the valve core 12 is in the second position, the valve core 12 is separated from the intake passage 113 .

[0046] In another embodiment, if Figure 5 As shown, the valve core 12 can also be constructed in a spherical shape, which can effectively close the air inlet channel 113 to ensure the sealing of the pressure cooker when the air inlet channel 113 is closed. At this time, the first safety valve 21 and / or the second safety valve 22 can also be arranged on the valve cover 11 to ensure the safety of the pressure cooker when in use.

[0047] In this embodiment, the spherical lifting knob 121 is located outside the valve housing 11, so that the operator can intuitively find the position of the lifting knob 121 and can operate it without disassembling the valve housing 11 or other components. The shape of the spherical lifting knob 121 is also ergonomic, which is convenient for hand holding and operation, and reduces the difficulty of operation. In addition, since the lifting knob 121 is located outside the valve housing 11, the operator can check the operating status of the valve or perform necessary maintenance by operating the lifting knob 121 without disassembling the entire pressure limiting valve, which reduces the time and cost of maintenance and overhaul and improves work efficiency.

[0048] This embodiment also provides a pressure cooker cover, including a body and a combination valve. The side wall of the valve cover 11 is provided with a clamping groove 116. The valve cover 11 is clamped on the body through the clamping groove 116. The combination valve includes the aforementioned combination valve.

[0049] The locking groove 116 simplifies the assembly process of the pressure cooker cover. Through the opening of the locking groove 116, the valve cover 11 can be conveniently locked on the body without using additional fasteners or connectors. This not only reduces the assembly steps and improves the assembly efficiency, but also reduces the performance problems or safety hazards caused by improper assembly.

[0050] This embodiment also provides a pressure cooker, comprising a cooker body and a cooker cover, wherein the cooker cover comprises the aforementioned pressure cooker cover.

[0051] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A combination valve, comprising a pressure limiting valve assembly (1) and a safety valve assembly (2), wherein the safety valve assembly (2) comprises at least one safety valve, characterized in that: The pressure-limiting valve assembly (1) comprises a valve housing (11) and a valve core (12); a valve cavity (111) having an exhaust port (112) is formed in the valve housing (11); the valve core (12) is movably arranged in the valve cavity (111) to switch between a first position and a second position; an air intake passage (113) is arranged on the valve housing (11); when the valve core (12) is in the first position, the valve core (12) closes the air intake passage (113); when the valve core (12) is in the second position, the valve core (12) closes the air intake passage (113). The air intake passage (113) is opened; when the pressure applied to the valve core (12) in a direction away from the air intake passage (113) is greater than a preset value, the valve core (12) moves from the first position to the second position; the valve cover (11) is formed with a mounting hole corresponding to the safety valve of the safety valve assembly (2); the safety valve assembly (2) is mounted in the mounting hole; the opening pressure of the safety valve assembly (2) is greater than the opening pressure of the pressure limiting valve assembly (1); and the outlet of the mounting hole is in the same direction as the outlet of the air intake passage (113).

2. The combination valve according to claim 1, characterized in that: The safety valve assembly (2) comprises a first safety valve (21), wherein the first safety valve (21) comprises a valve seat (211) and a spherical valve flap (212) arranged in the valve seat (211), wherein the valve seat (211) is provided with an air inlet (2111), and the valve flap (212) is used to close or open the air inlet (2111).

3. The combination valve according to claim 2, characterized in that: A spring (2112) is disposed in the valve seat (211), one end of the spring (2112) is fixed to the inner wall of the valve seat (211), and the other end of the spring (2112) is fixed to the top surface of the valve flap (212) and forces the valve flap (212) to maintain sealing contact with the air inlet (2111).

4. The combination valve according to claim 3, characterized in that: The mounting hole comprises a first mounting hole (114) opened at the bottom of the valve cover (11), and the valve seat (211) is inserted into the first mounting hole (114).

5. The combination valve according to claim 1 or 2, characterized in that: The safety valve assembly (2) comprises a second safety valve (22), the second safety valve (22) comprises an elastic valve body (221), the mounting hole comprises a second mounting hole (115) opened at the bottom of the valve cover (11), and the elastic valve body (221) is interference-fitted with the second mounting hole (115).

6. The combination valve according to claim 5, characterized in that: The second safety valve (22) further comprises an elastic band (222) having one end connected to the elastic valve body (221), and the other end of the elastic band (222) is connected to the valve cover (11).

7. The combination valve according to claim 1, characterized in that: The outer surface of the valve cover (11) is provided with an anti-blocking member (13) which is in communication with the air inlet passage (113), and the anti-blocking member (13) is provided with at least one anti-blocking groove (131).

8. The combination valve according to claim 5, characterized in that: The valve core (12) is constructed in a spherical shape. When the valve core (12) is in a first position, the valve core (12) abuts against the air intake passage (113). When the valve core (12) is in a second position, the valve core (12) is separated from the air intake passage (113).

9. A pressure cooker cover, comprising a body and a combination valve, characterized in that: A locking groove (116) is provided on the side wall of the valve cover (11), and the valve cover (11) is locked on the body through the locking groove (116). The combination valve comprises the combination valve according to any one of claims 1 to 8.

10. A pressure cooker, comprising a cooker body and a cooker cover, characterized in that: The pot cover comprises the pressure cooker cover according to claim 9.

Images