Exhaust valve, cooker cover assembly and pressure cooker

Abstract

The exhaust valve comprises an exhaust pipe and a valve block, the exhaust pipe comprises a limiting head, a connecting rod and an installation base which are sequentially connected in the length direction of an inner hole of the exhaust pipe, the installation base is used for being connected with the cooker cover, the outer diameter of the connecting rod is smaller than that of the limiting head, and the valve block is provided with a matching hole. A limiting structure is arranged on the inner wall of the matching hole, the limiting head is contained in the matching hole, the limiting structure is located between the limiting head and the mounting base, and the limiting head can elastically deform and penetrate through the limiting structure. According to the exhaust valve, the limiting head is elastic, can elastically deform and penetrate through the limiting structure, so that the exhaust pipe and the valve block can be independently manufactured when the exhaust valve is manufactured, and the exhaust valve can be assembled and formed only by pressing the limiting head of the exhaust pipe into the valve block with force when the exhaust valve is used; the exhaust valve provided by the utility model is simple in structure and few in required manufacturing procedures, and the manufacturing cost of the exhaust valve, the cooker cover assembly and the pressure cooker can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure cooker technical field, specifically, relate to a kind of exhaust valve, a kind of pot cover assembly and a kind of pressure cooker comprising the pot cover assembly. BACKGROUND

[0002] Pressure cooker has the characteristics of energy saving, time saving, and multiple cooking functions, and is favored by consumers. Pressure cooker uses the physical phenomenon that the boiling point of liquid increases under high pressure to apply pressure to water, so that water can reach a high temperature without boiling to speed up the efficiency of stewing food.

[0003] In the structure of the existing pressure cooker, the exhaust valve is usually a gravity valve made of metal material. To prevent the valve body from being blown out by gas, a snap spring is often arranged inside the valve body to limit the cooperation with the exhaust pipe. The arrangement of the snap spring and the corresponding structure not only requires machining of the corresponding groove on the metal body, but also requires complex assembly process, resulting in multiple manufacturing procedures and high manufacturing cost of the exhaust valve.

[0004] Therefore, how to provide an exhaust valve structure with simple structure and easy to manufacture has become a technical problem to be solved in the field. SUMMARY

[0005] The utility model aims at solving one of the technical problems in the related art to some extent. To this end, the utility model provides an exhaust valve, a pot cover assembly and a pressure cooker comprising the pot cover assembly, which has simple structure and is easy to manufacture.

[0006] To achieve the above-mentioned purpose, as one aspect of the utility model, an exhaust valve is provided, which comprises an exhaust pipe and a valve block. The exhaust pipe comprises a limiting head, a connecting rod and a mounting seat connected in sequence along the length direction of the exhaust pipe inner hole. The mounting seat is used to connect with the pot cover. The outer diameter of the connecting rod is smaller than that of the limiting head. The valve block has a matching hole with a limiting structure on its inner wall. The limiting head is arranged in the matching hole, and the limiting structure is located between the limiting head and the mounting seat. The limiting head can be elastically deformed and pass through the limiting structure.

[0007] As an optional embodiment of the utility model, the exhaust pipe has elasticity, and the exhaust valve further comprises a support pipe, and the exhaust pipe is sleeved outside the support pipe.

[0008] As an optional embodiment of the utility model, the material of the exhaust pipe is silica gel, and the material of the support pipe is metal material.

[0009] As an optional implementation form of the utility model, the outer surface of the limiting head has a plurality of annular grooves extending around the axis of the exhaust pipe inner hole, and the plurality of annular grooves are arranged at intervals along the length direction of the exhaust pipe inner hole.

[0010] As an optional implementation form of the utility model, the outer diameter of the limiting head first increases and then decreases along the length direction of the exhaust pipe inner hole.

[0011] As an optional implementation form of the utility model, the valve block comprises an annular limiting sheet, and the inner hole diameter of the annular limiting sheet is smaller than the outer diameter of the limiting head.

[0012] The inner wall of the matching hole has an annular clamping groove extending around the axis of the matching hole, the outer edge of the annular limiting sheet is arranged in the annular clamping groove, and the inner edge of the annular limiting sheet forms the limiting structure.

[0013] As an optional implementation form of the utility model, the valve block further comprises a shell, a counterweight cylinder and an annular cover plate, the matching hole is formed in the shell, an annular mounting groove is formed on the end face of the shell corresponding to the opening side of the matching hole, and the inner wall of the matching hole is connected with the annular mounting groove.

[0014] The shell further has an annular counterweight groove extending around the matching hole, the counterweight cylinder is arranged in the annular counterweight groove, the annular cover plate seals the annular counterweight groove, and the inner edge of the annular cover plate and the annular mounting groove jointly form the annular clamping groove.

[0015] As an optional implementation form of the utility model, the diameter of the inner hole of the annular cover plate away from one end of the annular limiting sheet gradually increases in the direction away from the annular limiting sheet.

[0016] As an optional implementation form of the utility model, the outer side surface of the shell has a plurality of friction grooves extending around the axis of the matching hole, and the plurality of friction grooves are arranged at intervals along the axis direction of the matching hole.

[0017] As an optional implementation form of the utility model, the valve block comprises a shell, a counterweight cylinder and an annular cover plate, the matching hole is formed in the shell, the shell further has an annular counterweight groove extending around the matching hole, the counterweight cylinder is arranged in the annular counterweight groove, the annular cover plate seals the annular counterweight groove, and the inner edge of the annular cover plate forms the limiting structure.

[0018] As an optional implementation form of the utility model, the inner wall of the end portion of the matching hole has a limiting cone, and the diameter of the limiting cone gradually decreases in the direction towards the opening of the matching hole.

[0019] As an optional embodiment of the utility model, the mounting seat is formed with an annular matching groove extending around the axis of the exhaust pipe inner hole, and the inner edge of the vent hole of the pot cover is accommodated in the annular matching groove.

[0020] As a second aspect of the utility model, a pot cover assembly is provided, which comprises a pot cover and the exhaust valve provided by the utility model, the pot cover is formed with a vent hole penetrating along the thickness direction of the pot cover, the mounting seat of the exhaust valve is fixedly connected with the pot cover, and the exhaust pipe inner hole of the exhaust valve is in communication with the vent hole.

[0021] As an optional embodiment of the utility model, the mounting seat is formed with an annular matching groove extending around the axis of the exhaust pipe inner hole, and the inner edge of the vent hole of the pot cover is accommodated in the annular matching groove.

[0022] As a third aspect of the utility model, a pressure cooker is provided, characterized in that the pressure cooker comprises a pot body and the pot cover assembly provided by the utility model, and the pot cover assembly can selectively seal the top opening of the pot body.

[0023] In the exhaust valve, the pot cover assembly and the pressure cooker provided by the utility model, the exhaust pipe bottom of the exhaust valve is fixedly connected with the pot cover, the matching hole of the valve block is sleeved with one end of the limiting head, so that when the pressure difference between the gas pressure in the pot and the external gas pressure is large enough, the gas in the pot can lift the valve block by overcoming the gravity of the valve block, and the gas can flow out of the exhaust pipe inner hole into the matching hole and finally be discharged to the outside of the pot.

[0024] In the utility model, the limiting structure is arranged on the inner wall of the matching hole of the valve block, the limiting head is clamped by the limiting structure, so that the valve block is prevented from being pulled out, and the use safety of the pressure cooker is ensured; meanwhile, the limiting head is elastic, and can be elastically deformed and pass through the limiting structure, so that the exhaust pipe and the valve block can be respectively and independently manufactured when the exhaust valve is manufactured, and the exhaust valve can be assembled into shape by only pressing the limiting head of the exhaust pipe into the valve block during use, the exhaust valve provided by the utility model has simple structure, requires less manufacturing processes, and can effectively reduce the manufacturing cost of the exhaust valve, the pot cover assembly and the pressure cooker. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further described below in combination with the drawings:

[0026] Figure 1 is the structure schematic view of the exhaust valve provided by the utility model embodiment;

[0027] Figure 2 is the structure schematic view of the exhaust pipe in the exhaust valve provided by the utility model embodiment;

[0028] Figure 3It is the structural schematic view of valve block in the exhaust valve provided by the embodiment of the utility model;

[0029] Figure 4 It is the structural schematic view of exhaust valve provided by the embodiment of the utility model;

[0030] Figure 5 It is the structural schematic view of valve block in the exhaust valve provided by the embodiment of the utility model;

[0031] Figure 6 It is the structural schematic view of exhaust valve provided by the embodiment of the utility model;

[0032] Figure 7 It is the structural schematic view of valve block in the exhaust valve provided by the embodiment of the utility model;

[0033] Figure 8 It is the structural schematic view of pot cover assembly provided by the embodiment of the utility model;

[0034] Figure 9 It is the sectional structure schematic view of pot cover assembly provided by the embodiment of the utility model.

[0035] Mark explanation:

[0036] Exhaust pipe 100, limiting head 110, annular groove 111, connecting rod 120, mounting seat 130, annular matching groove 131, valve block 200, matching hole 201, limiting structure 202, shell 210, limiting cone 211, friction groove 212, counterweight cylinder 220, annular cover plate 230, support pipe 300, annular limiting sheet 240, pot cover 10. Specific implementation

[0037] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. Based on the embodiments in the embodiments, it is intended to explain the utility model, and cannot be understood as limiting the utility model.

[0038] In the present specification, "one embodiment" or "example" or "instance" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the utility model disclosure. The appearance of the phrase "in one embodiment" at various positions in the specification does not necessarily refer to the same embodiment.

[0039] To solve the above technical problems, as one aspect of the utility model, an exhaust valve is provided, such as Figure 1 、 Figure 4 、 Figure 6As shown, the exhaust valve comprises an exhaust pipe 100 and a valve block 200, the exhaust pipe 100 comprises a limiting head 110, a connecting rod 120 and a mounting seat 130 connected in sequence along the length direction of the inner hole of the exhaust pipe 100, the mounting seat 130 is used for connecting with the pot cover 10, the outer diameter of the connecting rod 120 is smaller than that of the limiting head 110, the valve block 200 has a matching hole 201, the inner wall of the matching hole 201 has a limiting structure 202, the limiting head 110 is arranged in the matching hole 201, and the limiting structure 202 is located between the limiting head 110 and the mounting seat 130, and the limiting head 110 can be elastically deformed and pass through the limiting structure 202.

[0040] In the exhaust valve provided by the utility model, the mounting seat 130 at the bottom of the exhaust pipe 100 is used for fixedly connecting with the pot cover 10 (such as Figure 8 、 Figure 9 As shown), the matching hole 201 of the valve block 200 is sleeved at one end of the limiting head 110, so that when the pressure difference between the gas pressure in the pot and the external gas pressure is large enough, the gas in the pot can overcome the gravity of the valve block 200 to lift up the valve block 200, and the gas in the pot can flow out to the matching hole 201 through the inner hole of the exhaust pipe 100 and finally be discharged to the outside of the pot.

[0041] In the utility model, the limiting structure 202 is arranged on the inner wall of the matching hole 201 of the valve block 200, the limiting head 110 is clamped by the limiting structure 202, so that the valve block 200 is prevented from being pulled out, and the safety of the pressure cooker is ensured; meanwhile, the limiting head 110 is elastic and can be elastically deformed and pass through the limiting structure 202, so that the exhaust pipe 100 and the valve block 200 can be independently manufactured when the exhaust valve is manufactured, and the exhaust valve can be assembled into shape by only pressing the limiting head 110 of the exhaust pipe 100 into the valve block 200 during use, the exhaust valve provided by the utility model has simple structure, requires few manufacturing processes, and can effectively reduce the manufacturing cost of the exhaust valve.

[0042] It can be understood that, in the working state, the valve block 200 is lifted up by the gas, and does not move vertically, but tilts to one side, so that the gas in the pot cannot lift the valve block 200 to be separated from the exhaust pipe 100.

[0043] As an optional embodiment of the utility model, the exhaust pipe 100 is elastic, such as Figure 1 、 Figure 2 、 Figure 4 、 Figure 6As shown, the exhaust valve further comprises a support pipe 300, the exhaust pipe 100 is sleeved outside the support pipe 300, that is, the exhaust pipe 100 is a whole elastic member, so that the exhaust pipe 100 and the valve block 200 cannot be hard impacted, and the service life of the exhaust valve can be effectively prolonged, and meanwhile, the inside of the exhaust pipe 100 is further provided with the hard support pipe 300, so that the support strength of the exhaust pipe 100 to the valve block 200 and the stability of the exhaust path can be guaranteed.

[0044] As an optional embodiment of the utility model, the material of the exhaust pipe 100 is silica gel, and the material of the support pipe 300 is metal material.

[0045] As an optional embodiment of the utility model, as shown in the figure, Figure 2 As shown, the outer surface of the limiting head 110 is provided with a plurality of annular grooves 111 extending around the axis of the inner hole of the exhaust pipe 100, and the plurality of annular grooves 111 are arranged at intervals along the length direction of the inner hole of the exhaust pipe 100, so that the elastic fin structure is formed between the adjacent annular grooves 111, and when the limiting head 110 passes through the limiting structure 202, the fin structure can be tilted to one side, so that the limiting head 110 is conveniently put into the matching hole 201.

[0046] As an optional embodiment of the utility model, as shown in the figure, Figure 2 As shown, the outer diameter of the limiting head 110 is first increased and then decreased along the length direction of the inner hole of the exhaust pipe 100.

[0047] As an optional embodiment of the utility model, as shown in the figure, Figure 4 to Figure 7 As shown, the valve block 200 comprises an annular limiting sheet 240, and the inner hole diameter of the annular limiting sheet 240 is smaller than the outer diameter of the limiting head 110.

[0048] The inner wall of the matching hole 201 is provided with an annular clamping groove extending around the axis of the matching hole 201, the outer edge of the annular limiting sheet 240 is arranged in the annular clamping groove, and the inner edge of the annular limiting sheet 240 forms the limiting structure 202.

[0049] As an optional embodiment of the utility model, as shown in the figure, Figure 5 、 Figure 7 As shown, the valve block 200 further comprises a shell 210, a counterweight cylinder 220 and an annular cover plate 230, the matching hole 201 is formed in the shell 210, and the annular mounting groove which is connected with the inner wall of the matching hole 201 is formed on the end face of the shell 210 corresponding to the opening side of the matching hole 201.

[0050] The annular counterweight groove surrounding the matching hole 201 is further formed in the shell 210, the counterweight cylinder 220 is arranged in the annular counterweight groove, the annular cover plate 230 seals the annular counterweight groove, and the inner edge of the annular cover plate 230 and the annular mounting groove jointly form the annular clamping groove.

[0051] As an optional embodiment of the utility model, as shown in Figure 7 The diameter of the inner hole of the annular cover plate 230 away from one end of the annular limiting sheet 240 gradually increases in the direction away from the annular limiting sheet 240, so that a chamfer structure is formed at the opening, facilitating the installation of the limiting head 110 into the matching hole 201.

[0052] As an optional embodiment of the utility model, as shown in Figure 3 、 Figure 5 、 Figure 7 As shown in the figure, a plurality of friction grooves 212 extending around the axis of the matching hole 201 are formed on the outer side surface of the shell 210, and the plurality of friction grooves 212 are distributed at intervals along the axis direction of the matching hole 201, so as to increase the friction between the hand and the shell 210, facilitating the installation operation.

[0053] As an optional embodiment of the utility model, as shown in Figure 3 The valve block 200 includes a shell 210, a counterweight cylinder 220 and an annular cover plate 230, the matching hole 201 is formed in the shell 210, and an annular counterweight groove around the matching hole 201 is also formed in the shell 210, the counterweight cylinder 220 is accommodated in the annular counterweight groove, and the inner edge of the annular cover plate 230 is formed as a limiting structure 202.

[0054] In some embodiments of the utility model, the limiting structure 202 can also not be an annular inner edge structure, for example, it can be a plurality of protrusions distributed around the axis of the matching hole 201.

[0055] Optionally, the annular cover plate 230 can be fixedly connected with the shell 210 through snap connection, clamping connection (i.e. interference fit connection), ultrasonic welding and the like.

[0056] Optionally, the material of the shell 210 can be plastic.

[0057] As an optional embodiment of the utility model, a limiting cone 211 is provided on the inner wall of the end portion of the matching hole 201, the diameter of the limiting cone 211 gradually decreases in the direction towards the opening of the matching hole 201, the limiting cone 211 can enter the inner hole of the exhaust pipe 100, so as to keep the exhaust pipe 100 and the valve block 200 in alignment, and realize automatic deviation correction of the valve block 200.

[0058] As an optional embodiment of the utility model, as shown in Figure 2 An annular matching groove 131 extending around the axis of the inner hole of the exhaust pipe 100 is formed on the mounting seat 130, and the annular matching groove 131 is used for accommodating the inner edge of the vent hole of the pot cover 10.

[0059] As a second aspect of the utility model, a pot cover assembly is provided, as shown inFigure 8 、 Figure 9 As shown in FIG. 1, the pot cover assembly comprises a pot cover 10 and the exhaust valve provided by the utility model, the pot cover 10 is formed with a vent hole penetrating along the thickness direction of the pot cover 10, the mounting seat 130 of the exhaust valve is fixedly connected with the pot cover 10, and the inner hole of the exhaust pipe 100 of the exhaust valve is communicated with the vent hole.

[0060] In the pot cover assembly provided by the utility model, the bottom of the exhaust pipe 100 of the exhaust valve is fixedly connected with the pot cover 10, the cooperation hole 201 of the valve block 200 is sleeved at one end of the limiting head 110, so that when the pressure difference between the gas pressure in the pot and the external gas pressure is large enough, the gas in the pot can lift the valve block 200 by overcoming the gravity of the valve block 200, and the gas is discharged to the cooperation hole 201 through the inner hole of the exhaust pipe 100 and finally discharged to the outside of the pot.

[0061] In the utility model, the limiting structure 202 is arranged on the inner wall of the cooperation hole 201 of the valve block 200, the limiting head 110 is clamped by the limiting structure 202, so that the valve block 200 is prevented from being pulled out, and the safety of the pressure cooker is ensured; meanwhile, the limiting head 110 is elastic and can be elastically deformed and pass through the limiting structure 202, so that the exhaust pipe 100 and the valve block 200 can be respectively and independently manufactured when the exhaust valve is manufactured, and the exhaust valve can be assembled into shape by only pressing the limiting head 110 of the exhaust pipe 100 into the valve block 200 during use, the exhaust valve provided by the utility model has simple structure, requires less manufacturing processes, and can effectively reduce the manufacturing cost of the exhaust valve and the pot cover assembly.

[0062] As an optional embodiment of the utility model, the annular cooperation groove 131 extending around the axis of the inner hole of the exhaust pipe 100 is formed on the mounting seat 130, and the inner edge of the vent hole of the pot cover 10 is accommodated in the annular cooperation groove 131.

[0063] As a third aspect of the utility model, a pressure cooker is provided, which comprises a pot body (not shown in the figure) and the pot cover assembly provided by the utility model (as shown in Figure 8 、 Figure 9 The pot cover assembly can selectively seal the top opening of the pot body.

[0064] In the pressure cooker provided by the utility model, the bottom of the exhaust pipe 100 of the exhaust valve is fixedly connected with the pot cover 10, the cooperation hole 201 of the valve block 200 is sleeved at one end of the limiting head 110, so that when the pressure difference between the gas pressure in the pot and the external gas pressure is large enough, the gas in the pot can lift the valve block 200 by overcoming the gravity of the valve block 200, and the gas is discharged to the cooperation hole 201 through the inner hole of the exhaust pipe 100 and finally discharged to the outside of the pot.

[0065] In the utility model, the cooperation hole 201 of valve block 200 has the limit structure 202 on the inner wall, through the limit structure 202 to the limit head 110 is clamped, to avoid valve block 200 to get out, guarantee the use safety of pressure cooker, simultaneously, the limit head 110 has elasticity, and it can occur elastic deformation and pass through limit structure 202, to be able to respectively independent production exhaust pipe 100 and valve block 200 when making exhaust valve, only need to press the limit head 110 of exhaust pipe 100 into valve block 200 when using, can exhaust valve assembly into shape, the exhaust valve structure simple of utility model needs the manufacturing process less, can effectively reduce the production cost of exhaust valve and pressure cooker.

[0066] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, and the skilled person in the art should understand that the utility model includes but is not limited to the content described in the drawings and the above specific implementation manner.Any modification not deviating from the function and structural principle of the utility model will be included in the scope of claims.

Claims

1. An exhaust valve comprising an exhaust pipe (100) and a valve block (200), the exhaust pipe (100) comprising a limiting head (110), a connecting rod (120) and a mounting base (130) connected in sequence along the length direction of the inner hole of the exhaust pipe (100), the mounting base (130) being used for connecting with a pot cover (10), the outer diameter of the connecting rod (120) being smaller than the outer diameter of the limiting head (110), the valve block (200) having a matching hole (201), the inner wall of the matching hole (201) having a limiting structure (202), the limiting head (110) being accommodated in the matching hole (201), and the limiting structure (202) being located between the limiting head (110) and the mounting base (130), characterized in that, The limiting head (110) can be elastically deformed and pass through the limiting structure (202).

2. The exhaust valve according to claim 1, characterized in that, The exhaust pipe (100) has elasticity, and the exhaust valve further comprises a supporting pipe (300), and the exhaust pipe (100) is sleeved outside the supporting pipe (300).

3. The exhaust valve of claim 2, wherein, The material of the exhaust pipe (100) is silica gel, and the material of the supporting pipe (300) is metal material.

4. The exhaust valve of claim 1, wherein, The limiting head (110) has a plurality of annular grooves (111) on the outer surface, which extend around the axis of the inner hole of the exhaust pipe (100), and the plurality of annular grooves (111) are arranged at intervals along the length direction of the inner hole of the exhaust pipe (100).

5. The exhaust valve of claim 4, wherein, The outer diameter of the limiting head (110) first increases and then decreases along the length direction of the inner hole of the exhaust pipe (100).

6. The exhaust valve according to any one of claims 1 to 5, characterized in that, The valve block (200) comprises an annular limiting sheet (240), and the inner hole diameter of the annular limiting sheet (240) is smaller than the outer diameter of the limiting head (110). The inner wall of the fitting hole (201) has an annular clamping groove extending around the axis of the fitting hole (201), the outer edge of the annular limiting sheet (240) is arranged in the annular clamping groove, and the inner edge of the annular limiting sheet (240) forms the limiting structure (202).

7. The exhaust valve of claim 6, wherein, The valve block (200) further comprises a shell (210), a counterweight cylinder (220) and an annular cover plate (230), the fitting hole (201) is formed in the shell (210), and the shell (210) has an annular mounting groove on the end face corresponding to the opening side of the fitting hole (201), which is connected with the inner wall of the fitting hole (201). The shell (210) further has an annular counterweight groove around the fitting hole (201), the counterweight cylinder (220) is arranged in the annular counterweight groove, and the annular cover plate (230) seals the annular counterweight groove, and the inner edge of the annular cover plate (230) and the annular mounting groove jointly form the annular clamping groove.

8. The exhaust valve according to any one of claims 1 to 5, characterized by The valve block (200) comprises a shell (210), a counterweight cylinder (220) and an annular cover plate (230), the fitting hole (201) is formed in the shell (210), and the shell (210) further has an annular counterweight groove around the fitting hole (201), the counterweight cylinder (220) is arranged in the annular counterweight groove, and the annular cover plate (230) seals the annular counterweight groove, and the inner edge of the annular cover plate (230) forms the limiting structure (202).

9. A lid assembly, characterized by The pot cover assembly comprises a pot cover (10) and the exhaust valve according to any one of claims 1 to 8, the pot cover (10) has a ventilation hole penetrating in the thickness direction of the pot cover (10), the mounting seat (130) of the exhaust valve is fixedly connected with the pot cover (10), and the inner hole of the exhaust pipe (100) of the exhaust valve is communicated with the ventilation hole.

10. A pressure cooker characterized by The pressure cooker comprises a pot body and the pot cover assembly according to claim 9, and the pot cover assembly can selectively seal the top opening of the pot body.

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