Pressure cooker cover and pressure cooker

Abstract

The utility model provides a pressure cooker cover and a pressure cooker, the pressure cooker cover comprises a cover body, the radial direction of the cover body is a first direction; the at least two clamps are connected to the cover body in a sliding mode and can slide in the first direction, and each clamp is provided with a first transmission part; the transmission part is connected to the cover body in a sliding mode and can slide in the second direction, the transmission part is provided with a second transmission part and a third transmission part, and the second transmission part is matched with the first transmission part so that sliding in the second direction can be converted into sliding in the first direction; and the driving piece is rotationally connected to the cover body, the driving piece is provided with a fourth transmission part, and the fourth transmission part is matched with the third transmission part so as to convert rotation of the driving piece into sliding of the transmission piece in the second direction. The movement stability of the clamp can be improved, the risk of damage such as clamping stagnation or displacement in the using process is reduced, and the service life of the pressure cooker cover is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a pressure cooker cover and a pressure cooker. Background Art

[0002] A pressure cooker is a common cooking appliance, and its main function is to increase the heating temperature by increasing the air pressure in the pot, thereby increasing the heating speed. The pressure cooker is mainly composed of a pressure cooker cover and a pot body, and the pressure cooker cover and the pot body are connected by a clamp, and the clamp can move relative to the pot body to achieve the purpose of clamping the pressure cooker cover and the pot body at the same time or canceling the clamp. However, the existing pressure cooker cover and the clamp have poor stability in movement, and are prone to damage such as jamming or displacement during use, which affects the service life of the pressure cooker. Utility Model Content

[0003] The present application provides a pressure cooker cover and a pressure cooker to improve the stability of the clamp movement, reduce the risk of damage such as jamming or displacement during use, and extend the service life of the pressure cooker cover.

[0004] The first aspect of the present application provides a pressure cooker cover, comprising:

[0005] A cover body, wherein the radial direction of the cover body is a first direction;

[0006] At least two clamps, slidably connected to the cover body and capable of sliding along the first direction, the clamps being provided with a first transmission part;

[0007] a transmission member, slidably connected to the cover body and capable of sliding along a second direction, the second direction intersecting with the first direction, the transmission member being provided with a second transmission part and a third transmission part, the second transmission part cooperating with the first transmission part to convert sliding in the second direction into sliding in the first direction;

[0008] A driving member is rotatably connected to the cover body, and the driving member is provided with a fourth transmission part, and the fourth transmission part cooperates with the third transmission part to convert the rotation of the driving member into the sliding of the transmission member along the second direction.

[0009] The pressure cooker cover provided in the present application comprises a cover body, at least two clamps, a transmission member and a driving member. The radial direction of the cover body is the first direction; the clamp is slidably connected to the cover body and can slide along the first direction to achieve clamping or canceling the clamping, and the clamp is provided with a first transmission part; the transmission member is slidably connected to the cover body and can slide along the second direction, the transmission member is provided with a second transmission part and a third transmission part, the second transmission part cooperates with the first transmission part to convert the sliding in the second direction into the sliding in the first direction, so that the movement distance of the transmission member can be changed as needed, so that the overall structure is more compact and the space utilization rate is improved; the driving member is rotatably connected to the cover body, the driving member is provided with a fourth transmission part, the fourth transmission part cooperates with the third transmission part to convert the rotation of the driving member into the sliding of the transmission member along the second direction, that is, the transmission member is driven to slide by the rotation of the driving member instead of directly pushing the transmission member to slide, which can not only increase the stability of the clamp movement and prevent the impact or noise caused by the sudden change of the clamp state, but also increase the stability of the internal matching structure of the pressure cooker cover, prevent the pressure cooker cover from accidentally falling, etc., resulting in damage such as jamming or displacement of the internal structure, thereby extending the service life of the pressure cooker cover.

[0010] Optionally, the number of the clamps is two, the two clamps are located on the same straight line, and the first transmission parts of the two clamps are symmetrical to each other; the number of the transmission member is one, the second direction is perpendicular to the first direction, the transmission member includes two second transmission parts, and the two second transmission parts are symmetrical to each other. The same transmission member can simultaneously drive the two clamps to move in opposite directions synchronously, without the need to set a separate transmission member for each clamp, which can ensure that the positions of the two clamps from the axis of the cover body are consistent, so that the two clamps can achieve clamping and unclamping at the same time, and can also simplify the overall structure of the pressure cooker cover, reduce the number of components, and thus reduce the possibility of failure.

[0011] Optionally, a through slot is provided in the middle of the transmission member, and the through slot extends along the second direction; the third transmission part is arranged in the through slot, and the fourth transmission part is passed through the through slot. On the one hand, the sliding stroke of the transmission member is limited by the length of the through slot, so as to prevent the fourth transmission part from being separated from the third transmission part; on the other hand, the transmission matching is realized inside the through slot, so as to play a certain centering and positioning role on the transmission member, and prevent the transmission member from being offset along the arrangement direction of the clamps, which can ensure that the fourth transmission part and the third transmission part form a reliable matching state within the movement stroke, and can also ensure that the positions of the clamps on both sides are the same from the axis of the cover body.

[0012] Optionally, an elastic member is provided between the two clamps, and both ends of the elastic member are respectively connected to the two clamps to force the two clamps to approach each other. Under the action of the elastic member, the two clamps can automatically move in a direction close to the axis of the cover body, thereby automatically clamping and stably maintaining the clamping state, preventing the clamps from automatically loosening during use, which affects the safety of the pressure cooker.

[0013] Optionally, the third transmission part is a rack, which extends along the second direction, and the fourth transmission part is a gear, which meshes with the rack, so that a gear and rack mechanism is formed between the driving member and the transmission member, and the transmission accuracy is high, thereby increasing the smoothness of the movement of the clamp; and the gear and rack mechanism forms a rigid fit with a strong load-bearing capacity, which can reduce the possibility of displacement or damage of the driving member and the transmission member, thereby extending the service life of the pressure cooker cover.

[0014] Optionally, the first transmission part is a guide block, and the second transmission part is a guide groove. The guide block and the guide groove are slidably matched. The guide groove is inclined relative to the first direction, and the guide groove is inclined relative to the second direction. Through the inclined guide groove, a partial movement along the first direction and a partial movement in the second direction are formed, thereby converting the movement of the transmission part along the second direction into the movement of the clamp along the first direction.

[0015] Optionally, a first clamping groove is provided on one side of the guide groove close to the axis of the cover body, and the first clamping groove is recessed in the groove wall of the guide groove along the first direction, thereby locking the position of the transmission member and allowing the transmission member to stay stably in a predetermined position to prevent the driving member from rotating slightly due to scratches during use, causing the position of the transmission member to change, resulting in a change in the state of the clamp.

[0016] Optionally, a second clamping groove is provided at one end of the guide groove away from the axis of the cover body, and the second clamping groove extends along the second direction toward a direction away from the guide groove, thereby locking the position of the clamp and making the clamp stably remain in an unclamped state, making the closing operation of the pressure cooker lid more convenient, and preventing the clamp from automatically moving toward the direction close to the axis of the cover body when the pressure cooker lid is open, thereby affecting the normal closing of the pressure cooker lid.

[0017] Optionally, the cover body is provided with a check valve, the clamp is provided with a first avoidance groove and a second avoidance groove which are connected to each other, the width of the first avoidance groove is greater than the width of the second avoidance groove, and the first avoidance groove is farther away from the axis of the cover body than the second avoidance groove;

[0018] When the check valve rises, the check valve passes through the first avoidance groove and stops at one end of the first avoidance groove close to the second avoidance groove, so that the clamp cannot slide in a direction away from the axis of the cover body, and the clamp is stably kept in a clamped state, ensuring that the pressure cooker lid cannot be opened when the pressure in the pot is high, thereby ensuring the safety of the pressure cooker;

[0019] When the check valve descends, the check valve can slide into the second avoidance groove along the first avoidance groove, so that the clamp can smoothly slide in the direction away from the axis of the cover body, and the clamp can be switched to the unclamping state, so that the pressure cooker cover can be opened smoothly.

[0020] A second aspect of the present application provides a pressure cooker, comprising a cooker body and any one of the pressure cooker covers provided in the present application, wherein when the pressure cooker cover is connected to the cooker body, the clamp can clamp the pressure cooker cover and the cooker body simultaneously.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A partial structural schematic diagram of a pressure cooker lid provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A partial structural schematic diagram of the pressure cooker lid realizing a clamping state is shown;

[0024] Figure 3 for Figure 1 The diagram shows a partial structure of the pressure cooker lid in a clamping state.

[0025] Reference numerals:

[0026] 1-cover body;

[0027] 11-pressure limiting valve;

[0028] 12-stop valve;

[0029] 121-Large diameter section;

[0030] 122-trail section;

[0031] 13-chute;

[0032] 2- Clamp;

[0033] 21-guide block;

[0034] 22-First avoidance slot;

[0035] 23- Second avoidance slot;

[0036] 3- Transmission parts;

[0037] 31-guide groove;

[0038] 32- rack;

[0039] 33-through groove;

[0040] 34-first card slot;

[0041] 35- second card slot;

[0042] 4- driving member;

[0043] 41- gear;

[0044] 5- Elastic parts.

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0047] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0049] like Figure 1-Figure 3As shown, the embodiment of the present application provides a pressure cooker cover, which can be applied to a pot body and together with the pot body form a pressure cooker, and the pressure cooker cover includes a cover body 1 and at least two clamps 2. The cover body 1 is used to cover the opening of the pot body, and the cover body 1 is provided with a sealing ring, a pressure limiting valve 11 and a non-opening valve 12. The sealing ring can form a sealing state between the pressure cooker cover and the pot body, the pressure limiting valve 11 is used to limit the maximum pressure in the pot, and the non-opening valve 12 is penetrated by the cover body 1 and can rise or fall along the cover body 1; when the non-opening valve 12 rises, the pressure cooker cover forms a sealing state, a high pressure can be formed in the pot, and the pressure cooker cover cannot be opened; when the non-opening valve 12 falls, a pressure relief state is formed, the pressure in the pot is released, and the pressure cooker cover can be opened normally. The radial direction of the cover body 1 is the first direction, the clamp 2 is slidably connected to the cover body 1, and the clamps 2 are spaced apart around the axis of the cover body 1. The clamps 2 can slide along the first direction, that is, the clamps 2 can slide along the radial direction of the cover body 1 to achieve clamping or cancel clamping; when the clamp 2 moves in the direction close to the axis of the cover body 1, the clamp 2 achieves clamping, that is, the clamp 2 clamps the pot body and the pressure cooker cover at the same time; when the clamp 2 moves in the direction away from the axis of the cover body 1, the clamp 2 cancels the clamping, that is, the pressure cooker cover and the pot body can be separated from each other.

[0050] Furthermore, the pressure cooker cover provided in the embodiment of the present application further includes a transmission member 3, and the clamp 2 is provided with a first transmission part. The transmission member 3 is slidably connected to the cover body 1, and can slide along the second direction, which intersects with the first direction; the transmission member 3 is provided with a second transmission part, and the second transmission part cooperates with the first transmission part to convert the sliding in the second direction into the sliding in the first direction, so that the movement distance of the transmission member 3 can be changed as needed, making the overall structure more compact and improving the space utilization; the transmission member 3 and the clamp 2 can be arranged one by one, that is, each transmission member 3 drives one clamp 2 to move; or, at least two clamps 2 can be connected to the same transmission member 3, and at least two clamps 2 can be driven to move at the same time by the same transmission member 3.

[0051] Further, the pressure cooker cover provided in the embodiment of the present application also includes a driving member 4, and the transmission member 3 is provided with a third transmission part. The driving member 4 is rotatably connected to the cover body 1, and the driving member 4 is provided with a fourth transmission part, and the fourth transmission part cooperates with the third transmission part to convert the rotation of the driving member 4 into the sliding of the transmission member 3 along the second direction, that is, the transmission member 3 is driven to slide by the rotation of the driving member 4, rather than directly pushing the transmission member 3 to slide, which can increase the stability of the movement of the clamp 2, prevent the user from exerting too much force or the transmission member 3 from being hit, etc., resulting in the impact or noise caused by the sudden change of the state of the clamp 2, and increase the stability of the internal matching structure of the pressure cooker cover, prevent the pressure cooker cover from accidentally falling, etc., resulting in the internal structure being stuck or displaced, etc., thereby extending the service life of the pressure cooker cover. In addition, through the cooperation of the second transmission part and the first transmission part, and the cooperation of the fourth transmission part and the third transmission part, the transmission ratio can be changed in a large range, making the operation more labor-saving and improving the user experience.

[0052] Among them, the surface of the cover body 1 can be provided with an inwardly concave chute 13, and the clamp 2 is embedded in the chute 13. The chute 13 on the surface of the cover body 1 forms support and guidance for the clamp 2, and there is no need to set a separate support and guide component for the clamp 2, which can simplify the overall structure of the pressure cooker cover. The surface of the cover body 1 can also be connected with a cover (not shown in the figure), and the transmission structure such as the clamp 2, the transmission member 3 and the driving member 4 can be installed between the cover and the cover body 1, so as to play a role of protection or guidance, and prevent the transmission structure from pinching the user. At least a part of the driving member 4 is exposed outside the cover, so that it is convenient for the user to apply an external force to the driving member 4. The driving member 4 can be used as a cover handle of the pressure cooker cover to simplify the overall structure of the pressure cooker cover.

[0053] It should be noted that the intersection of the second direction and the first direction means that, in the plane where the cover body 1 is located, the second direction is inclined relative to the first direction, or the second direction is perpendicular to the first direction, as long as the two have a certain angle in the plane where the cover body 1 is located.

[0054] In some embodiments, there are two clamps 2, the two clamps 2 are located on the same straight line, and the first transmission parts of the two clamps 2 are symmetrical to each other; there is one transmission member 3, the second direction is perpendicular to the first direction, and the transmission member 3 includes two second transmission parts, the two second transmission parts are symmetrical to each other, and each second transmission part is connected to a corresponding first transmission part. The same transmission member 3 is used to drive the two clamps 2 to move synchronously in the opposite direction at the same time, and there is no need to set a separate transmission member 3 for each clamp 2. It can ensure that the positions of the two clamps 2 from the axis of the cover body 1 are consistent, so that the two clamps 2 can achieve clamping and unclamping at the same time, and it can also simplify the overall structure of the pressure cooker cover, reduce the number of parts, and thus reduce the possibility of failure.

[0055] Furthermore, an elastic member 5 (for example, a spring or an elastic rope, etc.) is provided between the two clamps 2, and the elastic member 5 is in a pre-stretched state. Both ends of the elastic member 5 are respectively connected to the two clamps 2 to force the two clamps 2 to approach each other. That is, under the action of the elastic member 5, the two clamps 2 can automatically move in a direction close to the axis of the cover body 1, thereby automatically clamping and stably maintaining the clamping state, preventing the clamps 2 from automatically loosening during use, which affects the safety of the pressure cooker.

[0056] In one embodiment, the first transmission part is a guide block 21, and the second transmission part is a guide groove 31. The guide block 21 and the guide groove 31 are slidably matched. The guide groove 31 is inclined relative to the first direction, and the guide groove 31 is inclined relative to the second direction. Through the inclined guide groove 31, a sub-motion along the first direction and a sub-motion in the second direction are formed, so that the movement of the transmission member 3 along the second direction is converted into the movement of the clamp 2 along the first direction. It can be understood that in some embodiments, the first transmission part can be the guide groove 31, and the second transmission part can be the guide block 21. In other embodiments, the first transmission part and the second transmission part can be wedge-shaped surfaces that fit each other.

[0057] Furthermore, a first clamping groove 34 is provided on one side of the guide groove 31 close to the axis of the cover body 1 (the side along the width direction of the guide groove 31), and the first clamping groove 34 is recessed in the groove wall of the guide groove 31 along a first direction, thereby locking the position of the transmission member 3 so that the transmission member 3 can stay stably in a predetermined position, preventing the driving member 4 from rotating slightly due to scratches during use, causing the position of the transmission member 3 to change, resulting in a change in the state of the clamp 2.

[0058] Specifically, when the guide block 21 slides along the guide groove 31 to a position facing the first slot 34, the clamp 2 can slide along the first direction alone with the guide block 21, and the transmission member 3 remains stationary. For example, the clamp 2 slides along the first direction with the guide block 21 under the elastic force of the elastic member 5, or under the external force applied by the user, so that the guide block 21 can be inserted into or removed from the first slot 34. When the guide block 21 is inserted into the first slot 34, the guide block 21 is stopped by the slot wall of the first slot 34 in the second direction, so that the transmission member 3 cannot slide in the second direction, and the transmission member 3 is locked. At this time, the driving member 4 is difficult to rotate under the action of scratches and the like; when the guide block 21 is removed from the first slot 34, the guide block 21 loses its stopping effect in the second direction, so that the transmission member 3 can slide in the second direction, thereby driving the guide block 21 to slide in the first direction.

[0059] Furthermore, a second clamping groove 35 is provided at one end of the guide groove 31 away from the axis of the cover body 1 (one end along the length direction of the guide groove 31), and the second clamping groove 35 extends along the second direction toward the direction away from the guide groove 31, thereby locking the position of the clamp 2, so that the clamp 2 is stably maintained in the unclamped state, making the closing operation of the pressure cooker lid more convenient, and preventing the clamp 2 from automatically moving toward the direction close to the axis of the cover body 1 when the pressure cooker lid is open, thereby affecting the normal closing of the pressure cooker lid.

[0060] Specifically, when the guide block 21 slides along the guide groove 31 to a position opposite to the second slot 35, the transmission member 3 can slide along the second direction alone along the guide groove 31, and the clamp 2 remains stationary. That is to say, within the travel of the second slot 35, even if the user rotates the driving member 4, it can only drive the transmission member 3 to slide along the second slot 35, but cannot drive the clamp 2 to slide, thereby keeping the clamp 2 stably in the unclamped state.

[0061] Furthermore, a through slot 33 is provided in the middle of the transmission member 3, and the through slot 33 extends along the second direction; the third transmission part is arranged in the through slot 33, and the fourth transmission part is penetrated in the through slot 33. On the one hand, the sliding stroke of the transmission member 3 is limited by the length of the through slot 33, so as to prevent the fourth transmission part from being separated from the third transmission part; on the other hand, the transmission matching is realized inside the through slot 33, so as to play a certain centering and positioning role for the transmission member 3, and prevent the transmission member 3 from being offset along the arrangement direction of the clamps 2, which can ensure that the fourth transmission part and the third transmission part form a reliable matching state within the movement stroke, and can ensure that the positions of the clamps 2 on both sides are the same from the axis of the cover body 1.

[0062] In one embodiment, the third transmission part is a rack 32, which extends along the second direction, and the fourth transmission part is a gear 41, which meshes with the rack 32, so that a gear 41-rack 32 mechanism is formed between the driving member 4 and the transmission member 3, and the transmission accuracy is high, thereby increasing the stability of the movement of the clamp 2; and the gear 41-rack 32 mechanism forms a rigid fit, with a strong bearing capacity, which can reduce the possibility of displacement or damage of the driving member 4 and the transmission member 3, thereby extending the service life of the pressure cooker cover. It can be understood that the fourth transmission part and the third transmission part can also form a cam mechanism, etc., as long as the rotational motion can be converted into linear motion.

[0063] Furthermore, the rack 32 is arranged on the groove wall of the through groove 33, for example, the rack 32 is integrally formed on the groove wall of the through groove 33, or is connected to the through groove 33 by welding or threading; the gear 41 is penetrated by the through groove 33, one side of the gear 41 is meshed with the rack 32, and the other side of the gear 41 is against the groove wall of the through groove 33, or a small amount of gap is left with the groove wall of the through groove 33, thereby playing a certain centering and positioning role on the transmission member 3, preventing the transmission member 3 from shifting along the arrangement direction of the clamps 2, which can not only ensure that the gear 41 and the rack 32 are always in a meshing state, but also ensure that the positions of the clamps 2 on both sides are the same from the axis of the cover body 1.

[0064] Furthermore, the check valve 12 includes a large diameter section 121 and a small diameter section 122 arranged in the axial direction, and the large diameter section 121 is located below the small diameter section 122; the clamp 2 is provided with a first avoidance groove 22 and a second avoidance groove 23 which are connected to each other, and the width of the first avoidance groove 22 is greater than the width of the second avoidance groove 23. Specifically, the width of the first avoidance groove 22 is adapted to the large diameter section 121, and the width of the second avoidance groove 23 is adapted to the small diameter section 122. The first avoidance groove 22 is further away from the axis of the cover body 1 than the second avoidance groove 23. When the clamp 2 moves toward the axis of the cover body 1 to achieve clamping (refer to Figure 2 ), the check valve 12 is located in the first avoidance groove 22 and can rise freely, and high pressure can be normally generated in the pot; when the clamp 2 moves away from the axis of the cover body 1 and the clamping is cancelled (reference Figure 3 ), the check valve 12 is located in the second avoidance groove 23, and the large diameter section 121 is stopped below the clamp 2, so that the check valve 12 cannot rise. In other words, when the clamp 2 is unclamped, high pressure cannot be generated in the pot, ensuring the safety of the pressure cooker.

[0065] Furthermore, when the check valve 12 rises, the pressure in the pot is relatively high, and the check valve 12 passes through the first avoidance groove 22 and stops at one end of the first avoidance groove 22 close to the second avoidance groove 23 (the large diameter section 121 stops at one end of the first avoidance groove 22 close to the second avoidance groove 23). In other words, the check valve 12 cannot slide into the second avoidance groove 23 in the rising state, so that the clamp 2 cannot slide in the direction away from the axis of the cover body 1, and the clamp 2 is stably maintained in the clamped state, ensuring that the pressure cooker lid cannot be opened when the pressure in the pot is relatively high, thereby ensuring the safe use of the pressure cooker. When the check valve 12 descends, the pressure in the pot is low, and the check valve 12 can slide into the second avoidance groove 23 along the first avoidance groove 22 (the small diameter section 122 slides into the second avoidance groove 23 along the first avoidance groove 22). In other words, the check valve 12 can slide into the second avoidance groove 23 in the descending state, so that the clamp 2 can slide smoothly in the direction away from the axis of the cover body 1, and the clamp 2 can be switched to the unclamping state, so that the pressure cooker lid can be opened smoothly.

[0066] In addition, an embodiment of the present application further provides a pressure cooker, which includes a pot body and any one of the pressure cooker lids provided in the embodiments of the present application. When the pressure cooker lid is connected to the pot body, the clamps can clamp the pressure cooker lid and the pot body at the same time.

[0067] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure cooker cover, characterized in that: include: A cover body (1), wherein the radial direction of the cover body (1) is a first direction; At least two clamps (2) are slidably connected to the cover body (1) and are capable of sliding along the first direction, and the clamps (2) are provided with a first transmission part; A transmission member (3) is slidably connected to the cover body (1) and is capable of sliding along a second direction, the second direction intersecting with the first direction, the transmission member (3) being provided with a second transmission part and a third transmission part, the second transmission part cooperating with the first transmission part to convert sliding in the second direction into sliding in the first direction; A driving member (4) is rotatably connected to the cover body (1), and the driving member (4) is provided with a fourth transmission part, and the fourth transmission part cooperates with the third transmission part to convert the rotation of the driving member (4) into the sliding of the transmission member (3) along the second direction.

2. The pressure cooker cover according to claim 1, characterized in that: The number of the clamps (2) is two, the two clamps (2) are located on the same straight line, and the first transmission parts of the two clamps (2) are symmetrical to each other; The number of the transmission member (3) is one, the second direction is perpendicular to the first direction, and the transmission member (3) comprises two second transmission parts, and the two second transmission parts are symmetrical to each other.

3. The pressure cooker cover according to claim 2, characterized in that: A through slot (33) is provided in the middle of the transmission member (3), and the through slot (33) extends along the second direction; The third transmission part is arranged in the through slot (33), and the fourth transmission part passes through the through slot (33).

4. The pressure cooker cover according to claim 2, characterized in that: An elastic member (5) is provided between the two clamps (2), and two ends of the elastic member (5) are respectively connected to the two clamps (2) to force the two clamps (2) to move closer to each other.

5. The pressure cooker cover according to any one of claims 1 to 4, characterized in that: The third transmission part is a rack (32), the rack (32) extends along the second direction, and the fourth transmission part is a gear (41), the gear (41) and the rack (32) are meshed with each other.

6. The pressure cooker cover according to any one of claims 1 to 4, characterized in that: The first transmission part is a guide block (21), the second transmission part is a guide groove (31), the guide block (21) and the guide groove (31) are slidably matched, the guide groove (31) is inclined relative to the first direction, and the guide groove (31) is inclined relative to the second direction.

7. The pressure cooker cover according to claim 6, characterized in that: A first clamping groove (34) is provided on one side of the guide groove (31) close to the axis of the cover body (1), and the first clamping groove (34) is recessed into the groove wall of the guide groove (31) along the first direction.

8. The pressure cooker cover according to claim 6, characterized in that: A second clamping groove (35) is provided at one end of the guide groove (31) away from the axis of the cover body (1), and the second clamping groove (35) extends along the second direction in a direction away from the guide groove (31).

9. The pressure cooker cover according to any one of claims 1 to 4, characterized in that: The cover body (1) is provided with a check valve (12), and the clamp (2) is provided with a first avoidance groove (22) and a second avoidance groove (23) which are connected to each other, the width of the first avoidance groove (22) is greater than the width of the second avoidance groove (23), and the first avoidance groove (22) is farther away from the axis of the cover body (1) than the second avoidance groove (23); When the check valve (12) rises, the check valve (12) passes through the first avoidance groove (22) and stops at one end of the first avoidance groove (22) close to the second avoidance groove (23); When the non-opening valve (12) descends, the non-opening valve (12) can slide along the first avoiding groove (22) into the second avoiding groove (23).

10. A pressure cooker, characterized in that The invention comprises a pot body and a pressure cooker cover according to any one of claims 1 to 9, wherein when the pressure cooker cover is connected to the pot body, the clamp can clamp the pressure cooker cover and the pot body at the same time.

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