Safety cooker cover structure of electric pressure cooker

Abstract

The utility model discloses a safety pot cover structure of an electric pressure cooker, which comprises a pot body, a pot cover assembly and an unlocking assembly, the pot cover assembly comprises a cover body, a support and a sliding lock, the skirt edge of the cover body is bent inwards to form a plurality of buckling teeth, the support is fixedly connected with the cover body, a guide rail is arranged on the support, and the sliding lock is arranged on the guide rail. The pot body is of a barrel-shaped structure, the top end of an opening of the pot body is provided with an end face extending outwards in the radial direction, the end face is provided with a plurality of protruding teeth protruding outwards in the radial direction, the protruding teeth correspond to the buckling teeth, one protruding tooth is a driving tooth, and the sliding lock is in contact fit with the driving tooth. The unlocking assembly can drive the sliding lock to move along the guide rail so that the sliding lock can lock and unlock the rotating movement of the driving teeth. According to the electric pressure cooker, when the cooker cover assembly is screwed or unscrewed, the unlocking action is added, the cooker cover can be prevented from being opened accidentally due to misoperation or external force, and the operation safety of the electric pressure cooker is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric pressure cooker technical field especially relates to a safe pot cover structure of electric pressure cooker. BACKGROUND

[0002] Electric pressure cooker as a kind of commonly used kitchen utensils, its unique high-pressure cooking function is other electric appliance cannot be replaced, very popular with users.But it is a high-pressure container in working condition, its use safety has been the problem that users pay attention to all the time.Currently, electric pressure cooker on the market, after the iteration of practitioner for many years, improvement, the safety-related parts in product in material, structural design, it has tended to standardization, basic structure is: ① a series of convex teeth are arranged on the outer side of the mouth of the pot body, the mouth of the cover body is partially curved inward to form a series of buckling teeth;② in non-working state, whether screwing or unscrewing pot cover assembly, sliding lock can slide on the slope surface (including the slope surface of driving tooth) of the convex tooth of the pot body;③ in working condition (there is pressure inside), due to the pressure inside the pot, the pressure float on the pot cover will rise to block the sliding lock, so that the pot cover cannot be rotated to open, avoid the possibility of pot explosion, but if forcibly rotating pot cover assembly, in some cases (for example, the cover torque exceeds a certain degree, resulting in part deformation, size change, etc.), sliding lock can also forcibly slide from the slope surface of driving tooth, causing the pot cover assembly to be abnormally opened, and safety hazards are caused;④ in abnormal condition, for example, pot cover assembly is installed at wrong angle, so that the blocking pin of sliding lock contacts other convex tooth outside driving tooth, at this time, since the side surface of the convex tooth is slope surface, sliding lock can also slide from the convex tooth, causing the pot cover to be buckled at wrong position, and safety hazards are also caused. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at providing a safe pot cover structure of electric pressure cooker, to solve the above problems existing in prior art.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model discloses a safe pot cover structure of electric pressure cooker, including the pot body, the pot cover subassembly of rotation buckle on the pot body and the unlocking assembly, the pot cover subassembly includes the cover, support and sliding lock, the skirt partial inward bending of cover forms a plurality of buckling tooth, the support is fixedly connected with the cover, be equipped with the guide rail on the support, the sliding lock is connected on the guide rail and can slide along the radius direction of cover, the pot body is the barrel structure, and the mouth top of pot body is provided with the end face extending along the radial outward, a plurality of outward convex protruding tooth are arranged to the end face along the radial, the protruding tooth are corresponded to set with the buckling tooth, to realize the buckling of cover and pot body, wherein one protruding tooth is the driving tooth, and the sliding lock is contacted with the driving tooth, and the unlocking assembly can drive the sliding lock moves along the guide rail, to realize the locking and unlocking of the sliding lock to the driving tooth rotary motion.

[0006] Further, the sliding lock includes a sliding seat, a blocking pin, and a connecting spring. The sliding seat is slidingly connected with the guide rail. The blocking pin is fixedly connected to the bottom of the sliding seat. The connecting spring is sleeved on the outer end of the blocking pin. One end of the connecting spring is abutted on the sliding seat, and the other end is abutted on the support. The connecting spring makes the inner end of the blocking pin abut on the surface of the driving tooth.

[0007] Further, the cover is provided with a pressure float that can be lifted. The sliding seat is correspondingly provided with a matching hole. When the pressure float is lifted, it is connected with the matching hole to lock the sliding seat.

[0008] Further, the two side surfaces of the driving tooth are a first driving tooth side surface and a second driving tooth side surface, respectively. The first driving tooth side surface and the second driving tooth side surface are both straight surfaces perpendicular to the top surface of the driving tooth.

[0009] Further, the first driving tooth side surface and the second driving tooth side surface are provided in the rotation direction of the cover, respectively. The first driving tooth side surface is a slope surface, and the second driving tooth side surface is a straight surface perpendicular to the top surface of the driving tooth.

[0010] Further, the two side surfaces of the other protruding teeth are both straight surfaces perpendicular to the top surface of the tooth.

[0011] Further, the unlocking assembly comprises a first knob, a connecting rod and a first reset spring, the first knob is rotationally connected at the rotation axis of the cover body and can rotate around the rotation axis of the cover body, one end of the first knob is fixedly connected with an operation end, the other end of the first knob is connected with the connecting rod, two ends of the connecting rod are respectively connected with the first knob and the sliding lock and form a connecting rod mechanism, two ends of the first reset spring are respectively connected with the first knob and the support, the first knob can drive the connecting rod to drive the sliding lock to move along the guide rail after being rotated.

[0012] Further, the unlocking assembly comprises a second knob, a first slider, a steering rod, a second slider and a second reset spring, the rotation plane of the second knob is perpendicular to the rotation plane of the cover body, the rotation axis of the second knob is located above the cover body and can rotate with the cover body, the bottom end of the second knob is connected with the first slider, the steering rod can rotate around the rotation axis thereof, two ends of the steering rod are respectively connected with the first slider and the second slider, the second knob, the first slider, the steering rod and the second slider jointly form a connecting rod mechanism, the second slider is connected with the sliding lock, the second knob can drive the steering rod to rotate by driving the first slider, at this time, the other end of the steering rod drives the second slider to push the sliding lock to move along the guide rail, the second knob is connected with the second reset spring which can drive the second knob to reset.

[0013] Further, the unlocking assembly comprises a second knob, a first slider and a second reset spring, the rotation plane of the second knob is perpendicular to the rotation plane of the cover body, the rotation axis of the second knob is located above the cover body and can rotate with the cover body, the bottom end of the second knob is connected with the first slider, the second knob can drive the sliding lock to move along the guide rail by driving the first slider, the second knob is connected with the second reset spring which can drive the second knob to reset.

[0014] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0015] The safety cover structure of the electric pressure cooker is provided with the cover assembly and the unlocking assembly, when the cover assembly is screwed or unscrewed, especially when the safety-related unscrewing action is performed, an unlocking action is added, the cover is effectively prevented from being accidentally opened due to misoperation or external force, especially when the pressure cooker still has high pressure or high temperature, the cover assembly cannot be rotated in the case that the cover assembly and the convex teeth of the pot body are misaligned and buckled, the operation safety of the electric pressure cooker is greatly improved, the overall structure is compact and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 Figure 1 is a bottom view structural schematic diagram of the safety lid structure of the electric pressure cooker in the unlocking position of the lid assembly of the embodiment 1 of the present application;

[0018] Figure 2 Figure 2 is a bottom view structural schematic diagram of the safety lid structure of the electric pressure cooker in the locking position of the lid assembly of the embodiment 1 of the present application;

[0019] Figure 3 Figure 3 is a top view structural schematic diagram of the safety lid structure of the electric pressure cooker of the embodiment 1 of the present application;

[0020] Figure 4 Figure 4 is a three-dimensional structural schematic diagram of the safety lid structure of the electric pressure cooker of the embodiment 1 of the present application;

[0021] Figure 5 Figure 5 is a structural schematic diagram of the sliding lock in the safety lid structure of the electric pressure cooker of the embodiment 1 of the present application;

[0022] Figure 6 Figure 6 is a bottom view structural schematic diagram of the safety lid structure of the electric pressure cooker in the unlocking position of the lid assembly of the embodiment 2 of the present application;

[0023] Figure 7 Figure 7 is a bottom view structural schematic diagram of the safety lid structure of the electric pressure cooker in the locking position of the lid assembly of the embodiment 2 of the present application;

[0024] Figure 8 Figure 8 is a structural schematic diagram of the pot body in the safety lid structure of the electric pressure cooker of the embodiment 2 of the present application;

[0025] Figure 9 Figure 9 is a bottom view structural schematic diagram of the safety lid structure of the electric pressure cooker in the unlocking position of the lid assembly of the embodiment 3 of the present application;

[0026] Figure 10 Figure 10 is a bottom view structural schematic diagram of the safety lid structure of the electric pressure cooker in the locking position of the lid assembly of the embodiment 3 of the present application;

[0027] Figure 11 Figure 11 is a structural schematic diagram of the pot body in the safety lid structure of the electric pressure cooker of the embodiment 4 of the present application;

[0028] Figure 12 It is the structure schematic view of the unlocking assembly in the safety lid structure of the electric pressure cooker of the utility model embodiment 5.

[0029] Figure 13 It is the structure schematic view of the unlocking assembly in the safety lid structure of the electric pressure cooker of the utility model embodiment 5.

[0030] The figure mark explanation: 1, the lid assembly;11, the cover body;111, the tooth;12, the support;13, the sliding lock;131, the blocking pin;132, the connecting spring;133, the sliding seat;14, the first knob;15, the connecting rod;16, the first reset spring;2, the pot body;21, the driving tooth;211, the first driving tooth side;212, the second driving tooth side;141, the second knob;151, the first sliding block;152, the steering lever;153, the second sliding block;161, the second reset spring;17, the pressure float. DETAILED DESCRIPTION

[0031] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0032] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The indicated device or element must have a specific orientation, a specific orientation and operation, therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] In the description of the utility model, it is necessary to explain that, unless otherwise specifically specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0034] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0035] Example 1

[0036] like Figures 1 to 5 As shown, the safety lid structure of the electric pressure cooker in this embodiment 1 includes a pot body 2, a lid assembly 1 that is rotated and fastened to the pot body 2, and an unlocking assembly. The lid assembly 1 includes a lid body 11, a bracket 12, and a sliding lock 13. The skirt of the lid body 11 is partially bent inward to form a plurality of fastening teeth 111. The bracket 12 is fixedly connected to the lid body 11. The bracket 12 is provided with a guide rail perpendicular to the axis of the lid body 11. The sliding lock 13 is connected to the guide rail and can slide along the radius of the lid body 11.

[0037] Furthermore, the pot body 2 has a barrel-shaped structure. The top of the opening of the pot body 2 is provided with an end face that extends radially outward. The end face is provided with several outward protruding teeth along the radial direction. The protruding teeth are correspondingly provided with the snap teeth 111 to realize the snapping of the lid body 11 and the pot body 2. One of the protruding teeth is a drive tooth 21. The sliding lock 13 contacts and engages with the drive tooth 21. The unlocking component can drive the sliding lock 13 to move along the guide rail to realize the locking and unlocking of the sliding lock 13 on the rotational movement of the drive tooth 21. Furthermore, the unlocking component is connected to the lid body 11.

[0038] The sliding lock 13 includes a sliding seat 133, a stop pin 131, and a connecting spring 132. The sliding seat 133 is slidably connected to the guide rail. The stop pin 131 is fixedly connected to the bottom of the sliding seat 133. The connecting spring 132 is sleeved on the outer end of the stop pin 131. One end of the connecting spring 132 abuts against the sliding seat 133, and the other end abuts against the bracket 12. The connecting spring 132 causes the inner end of the stop pin 131 to abut against the surface of the drive tooth 21. In the process of screwing the lid assembly 1 in and out, the connecting spring 132 will force the inner end of the stop pin 131 to always slide against the surface of the drive tooth 21.

[0039] like Figure 3 , Figure 4As shown, the unlocking assembly includes a first toggle switch 14, a connecting rod 15, and a first return spring 16. The first toggle switch 14 is rotatably connected to the rotation axis of the cover 11 and can rotate around the rotation axis of the cover 11. One end of the first toggle switch 14 is fixedly connected to an operating end, and the rotation axis of the operating end can be parallel to the rotation axis of the cover 11, that is, the rotation plane of the first toggle switch 14 is parallel to the rotation plane of the cover 11. The other end of the first toggle switch 14 is connected to the connecting rod 15. The two ends of the connecting rod 15 are respectively connected to the first toggle switch 14 and the sliding lock 13 to form a linkage mechanism. The two ends of the first return spring 16 are respectively connected to the first toggle switch 14 and the bracket 12. After the first toggle switch 14 rotates, it can drive the connecting rod 15 to drive the sliding lock 13 to move along the guide rail. Optionally, one end of the first return spring 16 is fixed to the cover 11 or to other parts fixedly connected to the cover 11, and the other end pulls the first knob 14. Its function is to reliably reset the first knob 14 after it is released.

[0040] Preferably, the two sides of the drive tooth 21 are a first drive tooth side surface 211 and a second drive tooth side surface 212. Both the first drive tooth side surface 211 and the second drive tooth side surface 212 are straight surfaces perpendicular to the top surface of the drive tooth 21, that is, both the first drive tooth side surface 211 and the second drive tooth side surface 212 are normal surfaces perpendicular to the rotation direction of the lid 11. At this time, whether the lid assembly 1 is screwed in or out, the side surface of the drive tooth 21 will block the sliding lock 13 from sliding, making the lid assembly 1 unable to rotate; only when the first knob 14 is rotated, and the first knob 14 drives the connecting rod 15 to push the sliding lock 13 to move outward, thereby unlocking the lid assembly 1, can the lid assembly 1 be screwed in or out.

[0041] like Figures 3 to 5 As shown in this embodiment 1, the cover 11 is provided with a pressure float 17 that can rise and fall, and the sliding seat 133 is provided with a corresponding mating hole. When the pot body 2 is under normal pressure, the pressure float 17 falls and the sliding lock 13 can move. When there is pressure in the pot body 2, the pressure float 17 rises. At this time, the pressure float 17 is connected to the mating hole. Specifically, the pressure float 17 passes into the mating hole and the sliding seat 133 is locked to achieve the locking of the sliding lock 13.

[0042] The safety lid structure of the electric pressure cooker in this embodiment 1, when in use, such as... Figure 1 As shown, when the lid assembly 1 is in the unlocked position, when the lid assembly 1 is rotated in the closing direction, the stop pin 131 of the sliding lock 13 is blocked by the side 211 of the first drive tooth of the drive tooth 21, and the lid assembly 1 cannot be rotated; Figure 2 As shown, when the lid assembly 1 is in the locked position, when the lid assembly 1 is rotated in the opening direction, the lid assembly 1 is locked and cannot be rotated because the stop pin 131 of the sliding lock 13 is blocked by the side 212 of the second drive tooth of the drive tooth 21.

[0043] When the pot cover assembly 1 needs to be screwed, as shown in Figure 3 、 Figure 4 , first, the first knob 14 is pulled, the first knob 14 rotates and drives the connecting rod 15 to push the sliding lock 13 to move outward along the guide rail, the blocking pin 131 moves away from the position interfering with the first driving tooth side surface 211 of the driving tooth 21, the pot cover assembly 1 is unlocked, at this time, the pot cover assembly 1 is rotated in the closing direction, the pot cover assembly 1 will be smoothly rotated to the locked position, and the pot cover assembly 1 is screwed; when the pot cover assembly 1 needs to be unscrewed, the first knob 14 is also pulled first, the first knob 14 rotates and drives the connecting rod 15 to push the sliding lock 13 to move outward along the guide rail, the blocking pin 131 moves away from the position interfering with the second driving tooth side surface 212 of the driving tooth 21, the pot cover assembly 1 is unlocked, and then the pot cover assembly 1 is rotated in the opening direction, the pot cover assembly 1 will be smoothly rotated to the unlocked position, and the pot cover assembly 1 is unscrewed.

[0044] Embodiment 2

[0045] As shown in Figures 6 to 8 , the difference between this embodiment 2 and embodiment 1 is that the driving tooth 21 is respectively provided with the first driving tooth side surface 211 and the second driving tooth side surface 212 in the closing direction, the first driving tooth side surface 211 is a slope surface, and the second driving tooth side surface 212 is a straight surface perpendicular to the top surface of the driving tooth 21, at this time, the closing direction is counterclockwise, and the opening direction is clockwise.

[0046] When the safety pot cover structure of the electric pressure cooker of this embodiment 2 is used, as shown in Figure 6 , the pot cover assembly 1 is in the unlocked position and is screwed, the pot cover assembly 1 is rotated in the closing direction, the blocking pin 131 of the sliding lock 13 meets the first driving tooth side surface 211 of the driving tooth 21, the blocking pin 131 will be pushed outward by the slope surface, and the pot cover assembly 1 can reach the locked position; as shown in Figure 7 , when the pot cover assembly 1 is in the locked position, the pot cover assembly 1 is rotated in the opening direction, the blocking pin 131 is blocked by the second driving tooth side surface 212 of the driving tooth 21, and the pot cover assembly 1 cannot be rotated.

[0047] Compared with embodiment 1, when the pot cover assembly 1 in the unlocked position is rotated in the closing direction, no unlocking action is needed, so that the convenience of use is improved while safety is ensured.

[0048] Embodiment 3

[0049] As shown in Figure 9 、 Figure 10As shown, the difference between this embodiment 3 and embodiment 1 is that the driving tooth 21 is provided with a first driving tooth side surface 211 and a second driving tooth side surface 212 along the rotation direction of closing the cover. The first driving tooth side surface 211 is a sloping surface, and the second driving tooth side surface 212 is a straight surface perpendicular to the top surface of the driving tooth 21. At this time, the closing direction is clockwise and the opening direction is counterclockwise.

[0050] The safety lid structure of the electric pressure cooker in this embodiment 3, when in use, such as... Figure 9 As shown, when the lid assembly 1 is in the unlocked position and screwed in, rotating the lid assembly 1 in the closing direction causes the stop pin 131 of the sliding lock 13 to encounter the side 211 of the first driving tooth of the driving tooth 21. The stop pin 131 is pushed outward by the ramp surface, and the lid assembly 1 reaches the locked position. Figure 10 As shown, when the lid assembly 1 is in the locked position, if the lid assembly 1 is rotated in the opening direction, the stop pin 131 is blocked by the side 212 of the second drive tooth of the drive tooth 21, and the lid assembly 1 cannot be rotated.

[0051] Compared with Example 1, in Example 3, when the lid assembly 1 rotates in the closing direction from the unlocked position, no unlocking action is required, which improves the convenience of use while ensuring safety.

[0052] Compared with Example 2, Example 3 has a lid-closing direction that rotates clockwise, while Example 2 has a lid-closing direction that rotates counterclockwise. This is designed to cater to the habits of different consumers.

[0053] Example 4

[0054] like Figure 11 As shown, the difference between this embodiment 4 and embodiment 3 is that, except for the driving tooth 21, the two sides of the other protruding teeth are straight surfaces perpendicular to the tooth top surface.

[0055] In this embodiment 4, the safety lid structure of the electric pressure cooker ensures that if the lid assembly 1 is installed at the opening of the pot body 2 at the wrong angle, causing the sliding lock 13 to contact other protruding teeth besides the drive tooth 21, the lid assembly 1 cannot rotate, and the electric pressure cooker cannot enter the working state. This ensures safety when the lid is misaligned.

[0056] Example 5

[0057] like Figure 12 , Figure 13As shown, the difference between the present embodiment 5 and embodiment 1 is that the unlocking assembly comprises a second knob 141, a first slider 151, a steering rod 152, a second slider 153 and a second reset spring 161, the rotation plane of the second knob 141 is perpendicular to the rotation plane of the cover body 11, the rotation axis of the second knob 141 is above the cover body 11 and can rotate with the cover body 11, the bottom end of the second knob 141 is connected with the first slider 151, the steering rod 152 can rotate around its rotation axis, the two ends of the steering rod 152 are connected with the first slider 151 and the second slider 153 respectively, the second knob 141, the first slider 151, the steering rod 152 and the second slider 153 together constitute a linkage mechanism, the second slider 153 is connected with the sliding lock 13, the second knob 141 can drive the first slider 151 to rotate one end of the steering rod 152, at this time the other end of the steering rod 152 drives the second slider 153 to push the sliding lock 13 to move along the guide rail, the second knob 141 is connected with the second reset spring 161 which can drive the second knob 141 to reset.

[0058] In the present embodiment 5, the second knob 141 adopts a vertical rotation structure, which is installed on the handle of the pot cover assembly 1, so as to simplify the operation, at this time, as shown in Figure 12 the second knob 141 is pushed to rotate vertically in direction A, the second knob 141 will move the first slider 151 in direction B, the steering rod 152 is driven by the first slider 151 to rotate horizontally in direction C, and then pushes the second slider 153 to move in direction D, the second slider 153 directly pushes the sliding lock 13 to move outward along the guide rail in the centrifugal direction, so as to realize the unlocking of the pot cover assembly 1; when the second knob 141 is released, the reset spring will force the entire linkage structure to reset.

[0059] Among them, the cover body 11 is provided with a pressure float 17 which can rise and fall, and the sliding seat 133 is provided with a matching hole correspondingly, as shown in Figure 12 when the pot body 2 is at normal pressure, the pressure float 17 falls down, and the sliding lock 13 can move; as shown in Figure 13 when the pot body 2 has pressure, the pressure float 17 rises up, at this time the pressure float 17 is connected with the matching hole, specifically, the pressure float 17 penetrates into the matching hole, and the sliding seat 133 is clamped, so as to realize the locking of the sliding lock 13, and further improve the use safety of the electric pressure cooker.

[0060] Embodiment 6

[0061] The difference between the embodiment 6 and the embodiment 1 is that the unlocking assembly comprises a second knob 141, a first slider 151 and a second reset spring 161, the rotation plane of the second knob 141 is perpendicular to the rotation plane of the cover body 11, the rotation axis of the second knob 141 is above the cover body 11 and can rotate with the cover body 11, the first slider 151 is connected to the bottom end of the second knob 141, the movement direction of the sliding lock 13 is parallel to the rotation plane of the second knob 141, the second knob 141 can drive the sliding lock 13 to move along the guide rail by driving the first slider 151, and the second reset spring 161 connected to the second knob 141 can drive the second knob 141 to reset.

[0062] The safety cover structure of the electric pressure cooker is provided with the cover assembly and the unlocking assembly, when the cover assembly is screwed or unscrewed, especially when the safety-related unscrewing action is performed, an unlocking action is added, the cover is effectively prevented from being accidentally opened due to misoperation or external force, especially when the pressure cooker still has high pressure or high temperature; and when the cover assembly and the convex teeth of the pot body are misaligned and buckled, the cover assembly cannot be rotated, the operation safety of the electric pressure cooker is greatly improved, the overall structure is compact and convenient to use.

[0063] The above-described embodiments are only used for describing the preferred modes of the utility model, and do not limit the scope of the utility model, under the premise of not departing from the design spirit of the utility model, various deformations and improvements of the technical scheme of the utility model made by the ordinary skilled in the art should fall into the protection scope determined by the claim book of the utility model.

Claims

1. A safety lid structure of an electric pressure cooker, characterized by, The pot cover assembly includes a cover body, a bracket and a sliding lock, the skirt of the cover body is partially inwardly bent to form a plurality of buckling teeth, the bracket is fixedly connected with the cover body, the bracket is provided with a guide rail, the sliding lock is connected with the guide rail and can slide along the radial direction of the cover body, the pot body is a barrel-shaped structure, the top end of the pot body is provided with an end face extending outward in the radial direction, the end face is provided with a plurality of outward protruding teeth in the radial direction, the teeth are correspondingly arranged with the buckling teeth to realize the buckling of the cover body and the pot body, one of the teeth is a driving tooth, the sliding lock is in contact with the driving tooth, and the unlocking assembly can drive the sliding lock to move along the guide rail to realize the locking and unlocking of the driving tooth.

2. The safety cover structure of an electric pressure cooker according to claim 1, wherein, The sliding lock includes a sliding seat, a blocking pin and a connecting spring, the sliding seat is slidingly connected with the guide rail, the bottom of the sliding seat is fixedly connected with the blocking pin, the outer end of the blocking pin is sleeved with the connecting spring, one end of the connecting spring is abutted on the sliding seat, and the other end is abutted on the bracket, and the connecting spring makes the inner end of the blocking pin abut on the surface of the driving tooth.

3. The safety lid structure of an electric pressure cooker according to claim 2, wherein The cover body is provided with a pressure float that can be lifted, and the sliding seat is correspondingly provided with a matching hole, the pressure float is connected with the matching hole when it is lifted to realize the locking of the sliding seat.

4. The safety lid structure of an electric pressure cooker according to claim 1, wherein The two side surfaces of the driving tooth are a first driving tooth side surface and a second driving tooth side surface, and the first driving tooth side surface and the second driving tooth side surface are both straight surfaces perpendicular to the top surface of the driving tooth.

5. The safety lid structure of an electric pressure cooker according to claim 1, wherein The driving tooth is provided with a first driving tooth side surface and a second driving tooth side surface in the rotation direction of the cover, the first driving tooth side surface is a slope surface, and the second driving tooth side surface is a straight surface perpendicular to the top surface of the driving tooth.

6. The safety lid structure of an electric pressure cooker according to claim 5, wherein The two side surfaces of the other plurality of teeth are both straight surfaces perpendicular to the top surface of the tooth.

7. The safety lid structure of an electric pressure cooker according to any one of claims 1-6, wherein, The unlocking assembly includes a first knob, a connecting rod and a first return spring, the first knob is rotationally connected at the rotation axis of the cover body and can rotate around the rotation axis of the cover body, one end of the first knob is fixedly connected with an operating end, the other end of the first knob is connected with the connecting rod, the two ends of the connecting rod are respectively connected with the first knob and the sliding lock to form a connecting rod mechanism, and the two ends of the first return spring are respectively connected with the first knob and the bracket, the first knob can drive the connecting rod to drive the sliding lock to move along the guide rail after being rotated.

8. The safety lid structure of an electric pressure cooker according to any one of claims 1-6, wherein, The unlocking assembly comprises a second knob, a first slider, a steering rod, a second slider and a second reset spring, the rotation plane of the second knob is perpendicular to the rotation plane of the cover body, the rotation axis of the second knob is above the cover body and can rotate with the cover body, the first slider is connected to the bottom end of the second knob, the steering rod can rotate around its rotation axis, the two ends of the steering rod are connected to the first slider and the second slider respectively, the second knob, the first slider, the steering rod and the second slider jointly form a linkage mechanism, the second slider is connected to the sliding lock, the second knob can drive the first slider to drive the steering rod to rotate, at this time the other end of the steering rod drives the second slider to push the sliding lock to move along the guide rail, the second knob is connected to the second reset spring which can drive the second knob to reset.

9. The safety lid structure of an electric pressure cooker according to any one of claims 1-6, wherein, The unlocking assembly comprises a second knob, a first slider and a second reset spring, the rotation plane of the second knob is perpendicular to the rotation plane of the cover body, the rotation axis of the second knob is above the cover body and can rotate with the cover body, the first slider is connected to the bottom end of the second knob, the second knob can drive the first slider to drive the sliding lock to move along the guide rail, the second knob is connected to the second reset spring which can drive the second knob to reset.

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