A pressure vessel assembly with variable fastening angle and a rice cooker

Abstract

The present invention discloses a pressure vessel assembly with variable buckling angle and a rice cooker, which includes a pressure vessel body and an openable and closable lid arranged on the pressure vessel body. Among them, a body buckle arranged on the pressure vessel body and a lid buckle arranged on the lid are matched and buckled; the lid buckle is a hook-shaped folded edge structure with variable angle; a driving mechanism is arranged on the lid, and the driving mechanism can drive the lid buckle to rotate and change the rotation angle, so as to change the buckling angle. After the lid buckle and the body buckle are buckled; when the pressure inside the pressure vessel body rises, the lid buckle and the body buckle hook each other to form an inverted buckle; when the pressure inside the pressure vessel body is relieved, the driving mechanism drives the lid buckle to change the rotation angle, so that the lid buckle and the body buckle are horizontally clamped without forming an inverted buckle. The structure of this design used in a rice cooker can enable the rice cooker to have sufficient pressure-bearing capacity and ensure that the opening force does not exceed the standard.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrical appliances, and particularly relates to a pressure vessel assembly and a rice cooker with a variable buckling angle. Background Art

[0002] In the existing rice cooker, when the pressure inside the cooker reaches 40 - 50 KPa, the lid buckle and the cooker body buckle will become unbuckled, the cooker lid will be pushed open, and the soup in the cooker will splash out, posing a potential risk of scalding people. The rated pressure of the micro-pressure rice cooker of our company is 30 KPa, and the design requirement is that the safety pressure should reach at least 60 KPa or more (that is: it is required that when the pressure is lower than 60 KPa, the lid buckle and the cooker body buckle cannot become unbuckled).

[0003] If we want to improve the pressure-bearing capacity of the rice cooker, it is best to adopt an inverted buckling fit for the lid buckle and the cooker body buckle. However, if an inverted buckling fit is adopted, the opening force will exceed 50 N. To ensure a good opening feel, the standard requires that the opening force does not exceed 30 N.

[0004] The purpose of the present technical invention is to conduct research and design improvements so that the product has sufficient pressure-bearing capacity and can ensure that the opening force does not exceed the standard. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressure vessel assembly and a rice cooker with a variable buckling angle to solve the problems in the background art.

[0006] To achieve the above purpose, the specific technical solutions of a pressure vessel assembly and a rice cooker with a variable buckling angle of the present invention are as follows: A pressure vessel assembly with a variable buckling angle includes a pressure vessel body and an openable and closable lid provided on the pressure vessel body. Among them, the vessel buckle provided on the pressure vessel body and the lid buckle provided on the lid are matched and buckled.

[0007] The lid buckle is a hook-shaped folded edge structure with a variable angle; a driving mechanism is provided on the lid, and the driving mechanism can drive the lid buckle to rotate and change the buckling angle. After the lid buckle and the vessel buckle are buckled;

[0008] When the pressure inside the pressure vessel body rises, the lid buckle and the vessel buckle hook each other to form an inverted buckle;

[0009] When the pressure inside the pressure vessel body is relieved, the driving mechanism drives the lid buckle to change the rotation angle, so that the lid buckle and the vessel buckle are horizontally clamped and do not form an inverted buckle.

[0010] Further, the lid buckle includes a first folded edge, a second folded edge, and a third folded edge; one end of the first folded edge and one end of the second folded edge are bent and connected, and the bent part of the first folded edge and the second folded edge is rotatably connected to the lid through a torsion spring. The other end of the second folded edge and one end of the third folded edge are bent and connected to form a hook shape, so as to be buckled with the T-shaped body buckle.

[0011] Further, symmetrically arranged second folded edges are integrally formed and connected to both sides of the first folded edge, and a third folded edge is integrally formed and connected to each second folded edge.

[0012] Further, the included angle between the second folded edge and the third folded edge is 30 - 85 degrees.

[0013] Further, the driving mechanism is a telescopic control mechanism, and a gradient protrusion is connected to the top wall of the first folded edge. By pulling the gradient protrusion to move through the telescopic control mechanism, a circumferential rotation component force is generated on the lid buckle, so as to drive the lid buckle to rotate and change the rotation amplitude.

[0014] Further, the gradient protrusion is a triangular wedge block structure, and the inclined surface of the triangular wedge block structure is drivingly connected to one end of the telescopic control mechanism.

[0015] Further, the telescopic control mechanism includes a buckle pull button, a solenoid valve connected to the buckle pull button, and a pressure ball push rod connected to the solenoid valve; the buckle pull button is sleeved on the inclined surface of the gradient protrusion.

[0016] Further, a pressure ball is provided on the lid, and the pressure ball is arranged in a pressure relief and exhaust hole on the lid. The end of the pressure ball push rod away from the buckle pull button is in contact connection with the pressure ball;

[0017] The lid buckle, the buckle pull button, the solenoid valve, the pressure ball push rod, and the pressure ball are sequentially linked. When pressurizing, the solenoid valve drives the pressure ball push rod away from the pressure ball, so that the body buckle and the lid buckle form an inverted buckle; after pressure relief, the solenoid valve drives the pressure ball push rod close to the pressure ball, so that the body buckle and the lid buckle form a horizontal snap connection.

[0018] A rice cooker includes an inner pot and the above-mentioned pressure vessel assembly with variable buckling angle, and the pot body of the rice cooker includes a pressure vessel body, the lid of the rice cooker includes a lid body, and the inner pot is installed in the pot body of the rice cooker.

[0019] Further, an open lid button for pushing and pulling the body buckle to expand and contract is installed on the side wall of the pot body. Pressing the open lid button causes the body buckle to retract, so that the body buckle and the lid buckle are loosened and separated from each other.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The buckle mechanism designed by the present invention is used in a rice cooker or other pressure vessels. Among them, the rice cooker adopts the buckle mechanism of this design with a variable buckling angle. When the rice cooker builds pressure, the lid buckle and the pot body buckle form an inverted buckle, increasing the pressure-bearing capacity of the buckle mechanism; after the rice cooker is depressurized, the lid buckle and the pot body buckle do not form an inverted buckle, ensuring that the opening force does not exceed the standard, so that the user can open the lid by gently pressing the opening button. The product has both sufficient pressure-bearing capacity and can ensure that the opening force does not exceed the standard. Brief Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure of the rice cooker in the present invention;

[0023] Figure 2 It is a schematic diagram of the clamping and assembly of the body buckle and the lid buckle in the prior art rice cooker;

[0024] Figure 3 It is a schematic diagram of the cooperation mode of the body buckle and the lid buckle when there is pressure inside the rice cooker of the present invention;

[0025] Figure 4 It is a schematic diagram of the cooperation mode of the body buckle and the lid buckle after the internal pressure of the rice cooker of the present invention is released;

[0026] Figure 5 It is an assembly drawing of the telescopic control mechanism and the lid buckle on the lid of the rice cooker of the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the lid buckle in the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the telescopic control mechanism in the present invention;

[0029] Figure 8 It is a movement mode diagram between the telescopic control mechanism and the lid buckle in the present invention;

[0030] Figure 9 For the prior art Figure 2 An enlarged detailed view of the cooperation of the body buckle and the lid buckle at point A in the prior art;

[0031] Figure 10 For the present invention Figure 3 An enlarged detailed view of the cooperation of the body buckle and the lid buckle at point B in the present invention;

[0032] Figure 11 For the present invention Figure 3 An enlarged detailed view of the cooperation of the body buckle and the lid buckle at point C in the present invention.

[0033] Description of reference numerals in the figure: pressure vessel body 1, body buckle 2, lid buckle 3, telescopic control mechanism 4, lid 5, pressure ball 6; first folded edge 31, second folded edge 32, third folded edge 33, gradient bulge 34; buckle pull button 41, solenoid valve 42, pressure ball push rod 43. Detailed implementation mode

[0034] To better understand the purpose, structure and function of the present invention, the following combines the accompanying drawings for the understanding of the present invention.

[0035] As Figure 2 and 9 shown, the buckling angle of the buckle mechanism composed of the lid buckle and the pot body buckle in the existing rice cooker is constant, while the present design provides a pressure vessel assembly with a variable buckling angle. As Figures 10 - 11 shown, it can be used in some pressure vessels such as rice cookers and pressure cookers. The buckle mechanism has a variable angle. Its structure includes a pressure vessel body 1 and an openable and closable lid 5 provided on the pressure vessel body 1. Among them, the body buckle 2 provided on the pressure vessel body 1 and the lid buckle 3 provided on the lid 5 are matched and buckled; when the lid 5 is covered on the pressure vessel body 1, it drives the lid buckle 3 and the body buckle 2 to buckle.

[0036] The lid buckle 3 is a hook-shaped folded edge structure with a variable angle; a driving mechanism is provided on the lid 5, and the driving mechanism can drive the lid buckle 3 to rotate and change the rotation angle, thereby changing the buckling angle between the two. After the lid buckle 3 and the body buckle 2 are buckled; internal pressure can be generated inside the pressure vessel body 1 during the start of operation. During the pressure increase process, the buckling between the lid buckle 3 and the body buckle 2 is always an inverted buckle. The head of the lid buckle 3 is like a hook or a T-shaped structure, while the body buckle 2 is the same as the pot body buckle of an ordinary rice cooker and is a T-shaped structure. The head of the lid buckle 3 hooks the upper limit end of the T-shaped structure to realize the covering and locking of the pressure vessel body 1. Since it is hooked, while the prior art as Figure 2 shown, only horizontal limit clamping is adopted. The design structure of the present invention adopts a hooking method, which is more stable and firm in clamping and limiting during the pressure increase process.

[0037] The designed pressure vessel assembly with a variable buckling angle can be used in existing rice cookers, pressure cookers, high-pressure cookers and other similar pressure-generating containers. In this specific implementation mode, an existing rice cooker is used as an example for description. An open lid button for pushing the body buckle 2 to expand and contract is installed on the side wall of the pot body of the rice cooker. Pressing the open lid button causes the body buckle 2 to retract, so that the body buckle 2 and the lid buckle 3 are loosened and separated, which belongs to the opening and closing button of the existing rice cooker. As Figure 1 and 5In the present invention, the rice cooker comprises an inner pot and the above-mentioned pressure vessel assembly with a variable buckling angle, and the pot body of the rice cooker comprises a pressure vessel body, and the pot cover of the rice cooker comprises a pot in the lid body installed in the pot body of the rice cooker. The rice cooker comprises a pressure ball 6, a pressure ball push rod 43, an electromagnetic valve 42, a buckle dial button 41, a pot cover buckle, and a pot body buckle, wherein the pot cover buckle has a gradual protrusion 34. The pot cover buckle is the lid body buckle 3, and the pot body buckle is the pot body buckle 2.

[0038] The innovative design of the present invention mainly lies in:

[0039] 1. The buckle angle of the pot cover buckle and the pot body buckle is variable. When there is pressure in the rice cooker, the pot cover buckle and the pot body buckle form an inverted buckle. Figure 10 As shown; when the rice cooker is depressurized, the lid buckle and the pot body buckle are not inverted, as shown in Figure 11 shown.

[0040] Second, a pressure ball push rod 43 is installed at one end of the solenoid valve 42, and a buckle dial button 41 is installed at the other end of the solenoid valve 42. The pressure ball push rod 43, the solenoid valve 42, and the buckle dial button 41 are linked. Figure 5 shown.

[0041] 3. The pot cover buckle is provided with a gradual protrusion 34, which is conducive to the buckle button 41 triggering the pot cover buckle.

[0042] Fourth, when the electromagnetic valve 42 pushes the pressure ball push rod 43 and pushes the pressure ball 6, the electromagnetic valve 42 will drive the buckle button to trigger the pot cover buckle. Thus, the buckle angle of the pot cover buckle and the pot body buckle is adjusted, so that the pot cover buckle and the pot body buckle form an inverted buckle, such as Figure 8 shown.

[0043] Among them, Figure 7 As shown, the telescopic control mechanism 4 includes a buckle button 41, a solenoid valve 42 connected to the buckle button 41, and a pressure ball push rod 43 connected to the solenoid valve 42; the buckle button 41 is sleeved on the inclined surface of the gradual protrusion 34. The cover body 5 is provided with a pressure ball 6, and the pressure ball 6 is arranged in the pressure relief vent on the cover body 5, and the end of the pressure ball push rod 43 away from the buckle button 41 is abutted and connected to the pressure ball 6; the cover body buckle 3, the buckle button 41, the solenoid valve 42, the pressure ball push rod 43, and the pressure ball 6 are linked and connected in sequence.

[0044] Among them, Figure 6 As shown, the gradual protrusion 34 is a triangular wedge block structure, and the inclined surface of the triangular wedge block structure is drivingly connected to one end of the telescopic control mechanism 4. Further, the driving mechanism is the telescopic control mechanism 4, and the top wall of the first folded edge 31 is connected with the gradual protrusion 34, and the telescopic control mechanism 4 pulls the gradual protrusion 34 to move, so that the cover buckle 3 generates a circumferential rotation component, thereby driving the cover buckle 3 to rotate and change the rotation amplitude.

[0045] As Figure 10 and 11 shown, the specific structure of the cover buckle 3 of this design includes a first folded edge 31, a second folded edge 32, and a third folded edge 33; one end of the first folded edge 31 and one end of the second folded edge 32 are bent and connected. The first folded edge 31 and the second folded edge 32 can be vertically connected. And one end of the first folded edge 31 and the bent part of the second folded edge 32 are rotatably connected to the cover body 5 through a torsion spring. The other end of the second folded edge 32 and one end of the third folded edge 33 are bent and connected to form a hook shape, so as to be buckled with the T-shaped body buckle 2. Preferably, symmetrically arranged second folded edges 32 are integrally formed and connected to both sides of the first folded edge 31, and each second folded edge 32 is integrally formed and connected to a third folded edge 33. Among them, the included angle between the second folded edge 32 and the third folded edge 33 is 30-85 degrees, ensuring that the second folded edge 32 and the third folded edge 33 form a hook shape, so that when pressing, the upper end of the body buckle 2 can be hooked.

[0046] The rice cooker is divided into the following Figure 3 and Figure 4 states, and the rotation angle amplitudes of the cover buckle 3 in the two states are different. As Figure 3 and Figure 4 two states:

[0047] As follows Figure 3 shown, the lid buckle is the cover buckle 3, and the pot body buckle is the body buckle 2. When the pressure inside the pressure vessel body 1 rises, the cover buckle 3 and the body buckle 2 are hooked to form an inverted buckle; when the solenoid valve 42 drives the pressure ball push rod 43 away from the pressure ball 6, the buckle button 41 will also move away from the gradual protrusion 34 on the cover buckle 3. At this time, the pressure ball 6 will seal the pressure relief exhaust hole, and pressure will be generated inside the rice cooker. At this time, the lid buckle and the pot body buckle are in an inverted mating. The second folded edge 32 and the third folded edge 33 at the head of the cover buckle 3 form a hook shape and hook the body buckle 2. The inverted detail structure is as Figure 10 shown.

[0048] As follows Figure 4 shown, when the pressure inside the pressure vessel body 1 is relieved, the drive mechanism drives the cover buckle 3 to change the rotation angle, so that the cover buckle 3 and the body buckle 2 are horizontally clamped and do not form an inverted buckle. When cooking is about to be completed, the solenoid valve 42 will drive the pressure ball push rod 43 to move towards the pressure ball 6, and the pressure ball push rod 43 will push open the pressure ball 6, and the rice cooker will start to exhaust and relieve pressure. Since the buckle button 41 is a frame structure with a rectangular frame opened in the middle, and the middle rectangular frame is sleeved on the gradual protrusion 34, while the solenoid valve 42 moves towards the pressure ball 6, as Figure 8 and 11As shown, the buckle knob 41 also moves in the direction of the gradient protrusion 34 of the pot lid. The buckle knob 41 touches the gradient protrusion 34 of the pot lid buckle, and the pot lid buckle will rotate clockwise. At this time, the pot lid buckle and the pot body buckle are not reversely buckled. The detailed structure of the non-reversely buckled common clamping method is as Figure 11 shown. At this time, press the open lid button gently, and the lid can be opened. The opening force is about 20N.

[0049] The present invention is used in a rice cooker, such as Figure 1 . Among them, the rice cooker adopts the buckle mechanism of the present design with variable buckling angles. When the rice cooker builds pressure, the pot lid buckle and the pot body buckle form a reverse buckle to increase the pressure-bearing capacity of the buckle mechanism; after the rice cooker releases pressure, the pot lid buckle and the pot body buckle are not reversely buckled to ensure that the opening force does not exceed the standard, enabling the user to open the lid by gently pressing the open lid button.

[0050] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A pressure vessel assembly with variable fastening angle, comprising a pressure vessel body (1) and an openable and closable cover body (5) provided on the pressure vessel body (1), wherein, The body buckle (2) provided on the pressure vessel body (1) and the cover body buckle (3) provided on the cover body (5) are matched and buckled with each other; It is characterized in that: the cover body buckle (3) is a hook-shaped flanging structure with variable angle; a driving mechanism is provided on the cover body (5), and the driving mechanism can drive the cover body buckle (3) to rotate to change the buckling angle. After the cover body buckle (3) and the body buckle (2) are buckled; When the pressure inside the pressure vessel body (1) rises, the cover body buckle (3) and the body buckle (2) hook each other to form an inverted buckle; When the pressure inside the pressure vessel body (1) is relieved, the driving mechanism drives the cover body buckle (3) to change the rotation angle, so that the cover body buckle (3) and the body buckle (2) become horizontally clamped and do not form an inverted buckle.

2. The pressure vessel assembly with variable fastening angle according to claim 1, characterized in that, The cover body buckle (3) includes a first flanging (31), a second flanging (32), and a third flanging (33); one end of the first flanging (31) and one end of the second flanging (32) are bent and connected, and the bent part of one end of the first flanging (31) and the second flanging (32) is rotatably connected to the cover body (5) through a torsion spring. The other end of the second flanging (32) and one end of the third flanging (33) are bent and connected to form a hook shape, so as to be buckled with the T-shaped body buckle (2).

3. The pressure vessel assembly with variable fastening angle according to claim 2, characterized in that, Symmetrically arranged second flangings (32) are integrally formed and connected to both sides of the first flanging (31), and each second flanging (32) is integrally formed and connected to a third flanging (33).

4. The pressure vessel assembly with variable fastening angle according to claim 3, characterized in that, The included angle between the second flanging (32) and the third flanging (33) is 30-85 degrees.

5. The pressure vessel assembly with variable fastening angle according to claim 2, characterized in that, The driving mechanism is a telescopic control mechanism (4), and a gradient protrusion (34) is connected to the top wall of the first flanging (31). By pulling the gradient protrusion (34) to move through the telescopic control mechanism (4), a circumferential rotation component force is generated on the cover body buckle (3), so as to drive the cover body buckle (3) to rotate and change the rotation amplitude.

6. The pressure vessel assembly with variable fastening angle according to claim 5, characterized in that, The gradient protrusion (34) is a triangular wedge block structure, and the inclined surface of the triangular wedge block structure is drivingly connected to one end of the telescopic control mechanism (4).

7. The pressure vessel assembly with variable fastening angle according to claim 6, characterized in that, The telescopic control mechanism (4) includes a buckle pull button (41), a solenoid valve (42) connected to the buckle pull button (41), and a pressure ball push rod (43) connected to the solenoid valve (42); the buckle pull button (41) is sleeved on the inclined surface of the gradient protrusion (34).

8. The pressure vessel assembly with variable fastening angle according to claim 7, characterized in that, A pressure ball (6) is provided on the cover body (5), and the pressure ball (6) is arranged in the pressure relief exhaust hole on the cover body (5). The end of the pressure ball push rod (43) away from the buckle pull button (41) is in contact connection with the pressure ball (6); The cover body buckle (3), the buckle pull button (41), the solenoid valve (42), the pressure ball push rod (43), and the pressure ball (6) are sequentially linked. When the pressure rises, the solenoid valve (42) drives the pressure ball push rod (43) away from the pressure ball (6), so that the body buckle (2) and the cover body buckle (3) form an inverted buckle; after the pressure is relieved, the solenoid valve (42) drives the pressure ball push rod (43) close to the pressure ball (6), so that the body buckle (2) and the cover body buckle (3) form a horizontal clamp.

9. A rice cooker, characterized in that, It includes an inner pot and the pressure vessel assembly with variable buckling angle described in any one of claims 1-8, and the pot body of the rice cooker includes a pressure vessel body (1), the pot lid of the rice cooker includes a lid body (5), and the inner pot is installed in the pot body of the rice cooker.

10. The rice cooker according to claim 9, characterized in that, An open lid button for pushing the body buckle (2) to retract is installed on the side wall of the pot body. Pressing the open lid button causes the body buckle (2) to retract, so that the body buckle (2) is loosened and disengaged from the lid body buckle (3).

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