Lid opening and closing mechanism of pressure cooker

Abstract

The present invention provides a lid opening and closing mechanism for a pressure cooker, belonging to the field of mechanical technology. It solves the problem of poor stability in the prior art. The lid opening and closing mechanism of the pressure cooker comprises a pot ear for being fixedly connected to a pot body and a buckle plate connected to the pot ear, a guide structure is provided between the pot ear and the buckle plate to enable the buckle plate to smoothly translate along the pot ear, the upper part of the pot ear also has a concave connecting groove, the cross section of the connecting groove is an isosceles trapezoid and the upper end size of the connecting groove is smaller than the lower end size, the lower part of the buckle plate has a wedge block matching the connecting groove and the wedge block is embedded in the connecting groove, and an elastic top pressing component is provided between the pot ear and the buckle plate, and the wedge block has a tendency to be in close contact with the side wall of the connecting groove under the action of the elastic top pressing component. The lid opening and closing mechanism of the pressure cooker has high stability.

Description

Technical Field

[0001] The invention belongs to the technical field of machinery and relates to a pot cover opening and closing mechanism of a pressure cooker. Background Art

[0002] In order to improve the safety of the pressure cooker, a pot cover opening and closing mechanism is provided on the pressure cooker. When the pot cover opening and closing mechanism is in a locked state, the pot cover of the pressure cooker will not be opened by mistake, thereby effectively improving its safety.

[0003] However, the existing pot cover opening and closing mechanism is mainly realized by a rotation locking method, which requires the pot cover to be rotated, resulting in complicated operation and time-consuming and laborious operation.

[0004] In order to solve the above problem, people have provided a buckle plate connected to the pot ears. For example, Chinese patent publication number CN109431255A provides a convenient micro-pressure cooker.

[0005] In order to make the buckle plate stably buckled on the pot cover, a sliding and flipping structure is set between the buckle plate and the pot ear. When the buckle plate slides along the pot ear, it will swing slightly, so that the buckle plate can finally buckle on the pot cover stably.

[0006] However, the sliding and flipping structure is too complicated, resulting in high cost and poor stability. Summary of the invention

[0007] The object of the present invention is to provide a lid opening and closing mechanism for a pressure cooker with high stability and compact structure in view of the above problems existing in the prior art.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A lid opening and closing mechanism for a pressure cooker, comprising a pot ear for being fixedly connected to a pot body and a buckle plate connected to the pot ear, characterized in that a guide structure is provided between the pot ear and the buckle plate, which enables the buckle plate to translate smoothly along the pot ear, the pot ear also has a concave connecting groove on the upper part, the connecting groove is isosceles trapezoidal in cross section and the upper end of the connecting groove is smaller than the lower end, the buckle plate has a wedge block matching the connecting groove and the wedge block is embedded in the connecting groove, and an elastic pressing component is provided between the pot ear and the buckle plate, and the wedge block has a tendency to be in close contact with the side wall of the connecting groove under the action of the elastic pressing component.

[0010] The pot cover opening and closing mechanism of the pressure cooker creatively enables the buckle plate to move smoothly and steadily along the pot ears in a straight line through a guide structure.

[0011] In the initial state, the buckle plate has a tendency to move upward under the action of the elastic top pressure component, and in this state, the wedge block abuts against the side of the connecting groove. Since the cross section of the connecting groove is an isosceles trapezoid, the buckle plate and the pot ear remain locked in this state.

[0012] When locked, the gusset has two positions:

[0013] 1. When the buckle plate overlaps with the pot ears, the buckle plate is separated from the pot cover, and the pot cover of the pressure cooker is in the unlocked position;

[0014] 2. When the end of the buckle plate extends out of the end of the pot ear, the buckle plate is buckled on the pot cover, and the pot cover of the pressure cooker is in a locked position.

[0015] When unlocking is required, external force needs to be applied to press the buckle plate. After the buckle plate is pressed, the wedge block is separated from the connection groove, and the buckle plate can move smoothly along the pot ear under the action of the guide structure.

[0016] Once the external force stops being applied, the elastic pressing assembly causes the buckle plate to move up, and after the wedge block contacts the connecting groove, the buckle plate and the pot ear are locked again.

[0017] In the above-mentioned lid opening and closing mechanism of the pressure cooker, the guide structure includes a long strip-shaped guide bar on the upper part of the pot ear and a slide groove on the lower part of the buckle plate matching the guide bar, and the guide bar is embedded in the slide groove.

[0018] The guide strip and the slide groove cooperate to enable the buckle plate to move smoothly along the pot ear.

[0019] In the lid opening and closing mechanism of the pressure cooker, there are two guide bars, which are symmetrically distributed on the upper part of the pot ears on both sides of the wedge. The number of the slide grooves is the same as that of the guide bars and their positions correspond one to one.

[0020] This can further improve the movement stability of the gusset plate.

[0021] In the above-mentioned lid opening and closing mechanism of the pressure cooker, the guide strip and the pot ear are an integrated structure.

[0022] This can appropriately improve the structural compactness of the mechanism.

[0023] In the above-mentioned lid opening and closing mechanism of the pressure cooker, the elastic pressing component includes a spring hole, a spring and a round ball. The above-mentioned spring hole extends from the upper part of the guide strip to the middle part of the pot ear. The above-mentioned spring and the round ball are both located in the spring hole. Under the elastic force of the spring, the round ball has a tendency to rest against the buckle plate.

[0024] Under the elastic force of the spring, the ball extends out of the spring hole, and the extended ball stably contacts with the buckle plate.

[0025] In the lid opening and closing mechanism of the pressure cooker, the spring hole, the spring and the ball form an elastic pressing unit, and the two guide strips are each provided with an elastic pressing unit corresponding thereto.

[0026] Multiple elastic pressing units can ensure that the buckle plate and the pot ears are stably locked.

[0027] In the above-mentioned lid opening and closing mechanism of the pressure cooker, in the initial state, the buckle plate overlaps with the upper part of the pot ear and the edges of the two are flush. After external force is applied to press down the buckle plate, the wedge block can be separated from the connecting groove. In this state, the buckle plate can smoothly translate along the pot ear. When the external force is stopped, the wedge block can be against the side wall of the connecting groove under the elastic force of the spring.

[0028] In the above-mentioned pot cover opening and closing mechanism of the pressure cooker, the upper part of the buckle plate is provided with a concave push groove.

[0029] The operator can easily apply a downward pressure force to the buckle plate by pressing the push groove, and can also easily push the buckle plate at the same time.

[0030] Compared with the prior art, the lid opening and closing mechanism of the pressure cooker has a more compact structure because the buckle plate is stably buckled on the upper part of the pot ear.

[0031] At the same time, under the action of the guide structure, the gusset plate can translate smoothly, has relatively high stability, and has high practical value.

[0032] During use, you only need to apply downward pressure on the gusset plate to push it easily and smoothly. Therefore, it is easy to use and the locking state switches smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the lid opening and closing mechanism of the pressure cooker.

[0034] Figure 2 The invention is a three-dimensional structural schematic diagram of a pot ear in a pot cover opening and closing mechanism of the pressure cooker.

[0035] Figure 3 It is a structural schematic diagram of the lid opening and closing mechanism of the pressure cooker in the unlocked state.

[0036] Figure 4 is along Figure 3 A-A cross-sectional structural schematic diagram.

[0037] Figure 5 is along Figure 3 Schematic diagram of the B-B cross-sectional structure.

[0038] Figure 6 It is a schematic diagram of the three-dimensional structure of the gusset plate in the second embodiment.

[0039] Figure 7 It is a structural schematic diagram of the lid opening and closing mechanism of the pressure cooker in a locked state.

[0040] In the figure, 1, pot ear; 1a, connecting groove; 1b, guide strip; 1c, push groove; 2, buckle plate; 2a, wedge block; 2b, slide groove; 3, spring hole; 4, spring; 5, ball; 6, positioning hole one; 7, positioning hole two. DETAILED DESCRIPTION Embodiment 1

[0041] like Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 As shown, the lid opening and closing mechanism of the pressure cooker comprises a pot ear 1 for being fixedly connected to the pot body and a buckle plate 2 connected to the pot ear 1, a guiding structure is provided between the pot ear 1 and the buckle plate 2 for enabling the buckle plate 2 to smoothly translate along the pot ear 1, the upper portion of the pot ear 1 also comprises a recessed connecting groove 1a, the cross section of the connecting groove 1a is isosceles trapezoidal and the upper end dimension of the connecting groove 1a is smaller than the lower end dimension, the lower portion of the buckle plate 2 comprises a wedge block 2a matching the connecting groove 1a and the wedge block 2a is embedded in the connecting groove 1a, an elastic pressing assembly is provided between the pot ear 1 and the buckle plate 2, and under the action of the elastic pressing assembly, the wedge block 2a has a tendency to be in close contact with the side wall of the connecting groove 1a.

[0042] The guide structure comprises a long strip-shaped guide strip 1b at the upper part of the pot ear 1 and a slide groove 2b at the lower part of the buckle plate 2 matching the guide strip 1b, wherein the guide strip 1b is embedded in the slide groove 2b.

[0043] There are two guide bars 1b, which are symmetrically distributed on the upper part of the pot ear 1 on both sides of the wedge 2a. The number of the slide grooves 2b is the same as that of the guide bars 1b and their positions correspond one to one.

[0044] The guide strip 1b and the pot ear 1 are an integrated structure.

[0045] The elastic top-pressing assembly includes a spring hole 3, a spring 4 and a ball 5. The spring hole 3 extends from the upper part of the guide strip 1b to the middle part of the pot ear 1. The spring 4 and the ball 5 are both located in the spring hole 3. Under the elastic force of the spring 4, the ball 5 tends to rest against the buckle plate 2.

[0046] The spring hole 3, the spring 4 and the ball 5 form an elastic pressing unit, and the two guide strips 1b are provided with elastic pressing units corresponding thereto one by one.

[0047] In the initial state, the buckle plate 2 overlaps with the upper part of the pot ear 1 and the edges of the two are flush. After external force is applied to press down the buckle plate 2, the wedge 2a can be separated from the connecting groove 1a. In this state, the buckle plate 2 can smoothly translate along the pot ear 1. When the external force is stopped, the wedge 2a can be against the side wall of the connecting groove 1a under the elastic force of the spring 4.

[0048] The upper portion of the buckle plate 2 has a concave push groove 1c.

[0049] The pot cover opening and closing mechanism of the pressure cooker creatively enables the buckle plate to move smoothly and steadily along the pot ears in a straight line through a guide structure.

[0050] In the initial state, the buckle plate has a tendency to move upward under the action of the elastic top pressure component, and in this state, the wedge block abuts against the side of the connecting groove. Since the cross section of the connecting groove is an isosceles trapezoid, the buckle plate and the pot ear remain locked in this state.

[0051] When locked, the gusset has two positions:

[0052] 1. When the buckle plate overlaps with the pot ears, the buckle plate is separated from the pot cover, and the pot cover of the pressure cooker is in the unlocked position;

[0053] 2. When the end of the buckle plate extends out of the end of the pot ear, the buckle plate is buckled on the pot cover, and the pot cover of the pressure cooker is in a locked position.

[0054] When unlocking is required, external force needs to be applied to press the buckle plate. After the buckle plate is pressed, the wedge block is separated from the connection groove, and the buckle plate can move smoothly along the pot ear under the action of the guide structure.

[0055] Once the external force stops being applied, the elastic pressing assembly causes the buckle plate to move up, and after the wedge block contacts the connecting groove, the buckle plate and the pot ear are locked again. Embodiment 2

[0056] The structure and principle of this embodiment are basically the same as those of the first embodiment, except that:

[0057] There are recessed positioning holes 1 6 and 2 7 at the slide groove 2b of the gusset plate 2. The positioning holes 1 6 and 2 7 are arranged front and back along the length direction of the slide groove 2b. When the gusset plate 2 moves, the ball 5 can be embedded in the positioning hole 1 6 or the positioning hole 2 7. Figure 6 and Figure 7 shown.

[0058] That is to say, when the ball 5 is embedded in the positioning hole 1 6 or the positioning hole 2 7 under the elastic force of the spring, the moved gusset plate 2 can be positioned to prevent the gusset plate 2 from continuing to slide.

[0059] At the same time, when the ball 5 is embedded in the positioning hole 1 6 or the positioning hole 2 7 under the elastic force of the spring 4, a clicking sound is emitted, thereby effectively reminding the operator that the buckle plate 2 has been moved into place.

[0060] The gusset plate 2 has two slide grooves 2b, and each of the two slide grooves 2b has a positioning hole 1 6 and a positioning hole 2 7. Of course, the two balls 5 can be synchronously embedded in the corresponding positioning hole 1 6 or positioning hole 2 7.

[0061] At the same time, the guide strip 1b is tilted, and the buckle plate 2 can be more stably buckled on the pot cover after tilting along the guide strip 1b. In other words, a certain angle is formed between the moving direction of the buckle plate 2 and the horizontal direction.

[0062] It can be seen that the opening and closing structure mainly relies on the round ball embedded in the first or second positioning hole to achieve the locking between the buckle plate and the pot ear. The inclined guide strip and the wedge cooperate with the connecting groove to form an auxiliary locking.

Claims

1. A lid opening and closing mechanism for a pressure cooker, the mechanism comprising a pot ear for being fixedly connected to the pot body and a buckle plate connected to the pot ear, characterized in that: A guide structure is provided between the pot ear and the buckle plate, which enables the buckle plate to smoothly translate along the pot ear. The upper part of the pot ear also has a concave connecting groove, the cross section of the connecting groove is an isosceles trapezoid, and the upper end size of the connecting groove is smaller than the lower end size. The lower part of the buckle plate has a wedge block matching the connecting groove and the wedge block is embedded in the connecting groove. An elastic top-pressing component is also provided between the pot ear and the buckle plate, and under the action of the elastic top-pressing component, the wedge block has a tendency to be in close contact with the side wall of the connecting groove; The guide structure includes a long strip-shaped guide strip on the upper part of the pot ear and a slide groove on the lower part of the gusset plate matching the guide strip, and the guide strip is embedded in the slide groove; The number of the guide bars is two, and the two guide bars are symmetrically distributed on the upper part of the pot ears on both sides of the wedge block. The number of the slide grooves is the same as the number of the guide bars and the positions correspond one to one. The guide strip and the pot ear are an integrated structure; The elastic pressing assembly includes a spring hole, a spring and a round ball. The spring hole extends from the upper part of the guide strip to the middle part of the pot ear. The spring and the round ball are both located in the spring hole. Under the elastic force of the spring, the round ball has a tendency to abut against the buckle plate. When the buckle plate overlaps with the pot ear, the buckle plate is separated from the pot cover, and the pot cover of the pressure cooker is in an unlocked position; When the end of the buckle plate extends out of the end of the pot ear, the buckle plate is buckled on the pot cover, and the pot cover of the pressure cooker is in a locked position; There are recessed positioning holes one and two at the slide groove of the buckle plate. The positioning holes one and two are arranged front and back along the length direction of the slide groove. When the buckle plate moves, the round ball can be embedded in the positioning hole one or the positioning hole two.

2. The lid opening and closing mechanism of the pressure cooker according to claim 1, characterized in that: The spring hole, the spring and the ball form an elastic pressing unit, and the two guide strips are each provided with an elastic pressing unit corresponding thereto.

3. The lid opening and closing mechanism of the pressure cooker according to claim 2, characterized in that: In the initial state, the buckle plate overlaps with the upper part of the pot ear and the edges of the two are flush. After external force is applied to press down the buckle plate, the wedge can be separated from the connecting groove. In this state, the buckle plate can move smoothly along the pot ear. When the external force is stopped, the wedge can be against the side wall of the connecting groove under the elastic force of the spring.

4. The lid opening and closing mechanism of the pressure cooker according to claim 3, characterized in that: The upper part of the buckle plate is provided with a concave push groove.

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