CN109124375B - Pot cover locking assembly, pot cover assembly and cooking utensil - Google Patents

Abstract

The invention discloses a pot cover locking assembly, a pot cover assembly and a cooking appliance, wherein the pot cover assembly comprises: a pot cover body; a pot cover locking component for locking the pot cover body in a closed state, the pot cover locking component is installed on the pot cover body and comprises: the guide rail can be arranged on the pot cover body in a close or far way; the elastic piece is respectively connected with the guide rail and the pot cover body so as to drive the guide rail to be away from the pot cover; the first buckle and the second buckle are arranged on the guide rail in a mutually approaching or separating mode. The pot cover assembly provided by the embodiment of the invention has the advantages of high reliability, comfort in use and the like.

Description

Pot cover locking assembly, pot cover assembly and cooking utensil

Technical Field

The invention relates to the technical field of cooking utensil manufacturing, in particular to a pot cover assembly, a cooking utensil with the pot cover assembly and a pot cover locking assembly.

Background

In the related art, the cooker such as the oval pressure cooker has the disadvantages that the whole cooker cover is weak in rigidity, the top of the cooker cover is seriously deformed by the pressure in the cooker, and the upward deformation is difficult to avoid. The pot cover can interfere with the lock catch transmission and control mechanism arranged at the top of the pot cover after deforming, the movement of the lock catch is influenced smoothly, the use of a user is influenced, and even the bending deformation of related mechanisms is caused, so that the transmission mechanism is blocked, and the cooking appliance cannot be used.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the pot cover assembly which has the advantages of high reliability, comfort in use and the like.

The invention also provides a cooking appliance with the pot cover assembly.

The invention also provides a pot cover locking assembly.

To achieve the above object, an embodiment according to a first aspect of the present invention provides a pot lid assembly, including: a pot cover body; a pot cover locking component for locking the pot cover body in a closed state, the pot cover locking component is installed on the pot cover body and comprises: the guide rail can be arranged on the pot cover body in a close or far way; the elastic piece is respectively connected with the guide rail and the pot cover body so as to drive the guide rail to be away from the pot cover body; the first buckle and the second buckle are arranged on the guide rail in a mutually approaching or separating mode.

The pot cover assembly provided by the embodiment of the invention has the advantages of high reliability, comfort in use and the like.

In addition, the pot cover assembly according to the above embodiment of the invention may further have the following additional technical features:

according to one embodiment of the invention, the maximum clearance between the guide rail and the lid body is greater than 2 mm. Thus, enough allowance can be reserved for the deformation of the pot cover body.

According to one embodiment of the invention, the distance between the guide rail and the pot cover body is gradually reduced from the middle to two ends in the length direction of the guide rail. Therefore, the whole height of the pot cover body is reduced while enough space is ensured to avoid the deformation of the pot cover body.

Optionally, one of the pot cover body and the guide rail is provided with a guide post, and the other is provided with a guide hole, wherein the guide post can be matched in the guide hole in a way of moving along the axial direction of the guide post. This allows the guide post and the guide hole to be used for positioning and guiding the sliding of the guide rail.

Furthermore, the guide holes are two and are respectively arranged at two ends of the guide rail, and the guide columns are two and are respectively matched in the two guide holes. This makes the stress on the guide rail more uniform.

According to one embodiment of the invention, the elastic member is a spring and is sleeved on the guide post, the upper end of the spring is abutted against the lower surface of the guide rail, and the lower end of the spring is abutted against the upper surface of the pot cover body. This not only facilitates the mounting of the spring, but also the positioning of the spring by means of the guide post.

According to another embodiment of the invention, the elastic member is a spring plate, the upper end of the spring plate is connected to the guide rail, and the lower end of the spring plate is stopped against the upper surface of the pot cover body. Therefore, the arrangement of the elastic sheet is convenient, and the guide rail can move towards the direction far away from the pot cover body by means of the elasticity of the elastic sheet.

Further, the spring plate is integrally formed with the guide rail. This facilitates the assembly process of the guide rail.

According to another embodiment of the present invention, the first buckle includes a first pull rod slidably disposed on the guide rail and a first buckle body connected to the first pull rod, the second buckle includes a second pull rod slidably disposed on the guide rail and a second buckle body connected to the second pull rod, the first pull rod and the second pull rod are respectively provided with an avoidance groove for avoiding the two guide posts, and the avoidance groove is oriented along a length direction of the pull rod. Therefore, the guide post can be arranged conveniently, and the avoiding groove can be used for avoiding the guide post.

Optionally, the upper end of each guide post is provided with a fastener for stopping the guide rail from being separated from the guide post. Therefore, the guide rail can be further positioned, and the guide rail is prevented from being separated from the pot cover body.

Further, the fastener includes a screw threadedly coupled to the guide post and a washer clamped between the screw and the guide rail. This allows the guide rail to be restrained by the screw and the washer.

According to still another embodiment of the present invention, the upper surface of the pot cover body is provided with a sinking groove, and at least a portion of the guide rail is fitted in the sinking groove. This facilitates the mounting of the guide rail.

Optionally, the two ends of the guide rail are provided with bent sections which extend outwards and obliquely towards the pot cover body. Therefore, the guide rail is convenient to connect with the pot cover body, and the distance between the guide rail and the pot cover body can be increased conveniently under the condition that the two ends of the guide rail are too high.

According to another embodiment of the present invention, the cross-section of the pot lid body has a major axis and a minor axis orthogonal to each other. This facilitates cooking of large rectangular pieces of food.

Further, the guide rail is oriented along the minor axis. Thus, the structural strength of the pot cover locking component is improved conveniently.

Embodiments according to a second aspect of the invention propose a cooking appliance comprising a lid assembly according to embodiments of the first aspect of the invention.

According to the cooking utensil of the embodiment of the invention, by utilizing the pot cover assembly of the embodiment of the first aspect of the invention, the advantages of high reliability, comfortable use and the like are achieved.

Embodiments according to a third aspect of the present invention provide a lid locking assembly. The pot cover locking assembly comprises: the guide rail can be arranged on the pot cover in a close or far way; the elastic piece is respectively connected with the guide rail and the pot cover so as to drive the guide rail to be away from the pot cover; the first buckle and the second buckle are arranged on the guide rail in a mutually approaching or separating mode.

The pot cover locking assembly provided by the embodiment of the invention has the advantages of high reliability, comfort in use and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a sectional view of a pot lid assembly according to an embodiment of the present invention.

Fig. 2 is an enlarged view at D in fig. 1.

Fig. 3 is an exploded view of a lid assembly according to one embodiment of the present invention.

Fig. 4 is a partial exploded view of a pot lid assembly according to an embodiment of the present invention.

Fig. 5 is a sectional view of a pot lid assembly according to another embodiment of the present invention.

Fig. 6 is an enlarged view at E in fig. 5.

Fig. 7 is a schematic structural view of a guide rail of a pot cover assembly according to another embodiment of the present invention.

Fig. 8 is a schematic structural view of a fastening member of the pot cover assembly according to an embodiment of the present invention.

Reference numerals: the cooker lid locking assembly comprises a cooker lid assembly 1, a cooker lid body 100, a guide post 110, a fastener 120, a screw 121, a gasket 122, a sinking groove 130, a cooker lid locking assembly 200, a guide rail 210, a guide hole 211, a spring 221, an elastic sheet 222, a first buckle 230, a first pull rod 231, a buckle body 232, an avoiding groove 233, a second buckle 240, a second pull rod 241 and a second buckle body 242.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A pot lid assembly 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 8, a pot lid assembly 1 according to an embodiment of the present invention includes a pot lid body 100 and a pot lid locking assembly 200.

The lid locking assembly 200 is used for locking the lid body 100 in a closed state, the lid locking assembly 200 is mounted on the lid body 100 and includes a guide rail 210, the elastic member, a first buckle 230 and a second buckle 240, and the guide rail 210 can be disposed on the lid body 100 in a close or far manner. The elastic members are connected to the guide rail 210 and the lid body 100, respectively, to always drive the guide rail 210 away from the lid body 100. The first catch 230 and the second catch 240 are disposed opposite to each other in the circumferential direction of the lid body 100, and the first catch 230 and the second catch 240 may be disposed on the guide rail 210 to be close to or away from each other.

According to the pot cover assembly 1 provided by the embodiment of the invention, the pot cover locking assembly 200 arranged on the pot cover body 100 can lock the pot cover body 100 in a closed state, so that not only can the cooking effect of the cooking appliance be ensured during cooking, but also the reliable locking of the closed state of the pot cover body 100 can be ensured, and the cooking appliance can reliably work.

Moreover, the guide rail 210 can be disposed on the lid body 100 in a manner of being close to or far from the lid body 100, so that the guide rail 210 can avoid the lid body 100 deformed by pressure, and prevent the lid body 100 from being deformed and then contacting the guide rail 210, thereby reducing the influence of the deformation of the lid body 100 on the lid locking assembly 200, and preventing the lid body 100 from interfering with the guide rail 210 after the top is deformed by pressure, thereby preventing the opening and closing performance of the lid body 100 from being influenced.

In addition, the guide rail 210 can be arranged on the pot cover body 100 close to or far away from the pot cover body 100, so that the deformation of the pot cover body 100 can be avoided to cause the deformation of the guide rail 210, the normal movement of the pot cover locking assembly 200 can be ensured, the first buckle 230 and the second buckle 240 can slide smoothly, the first buckle 230 and the second buckle 240 can be ensured to realize the locking or opening of the pot cover assembly 1, the occurrence that the pot cover assembly 1 cannot be opened or closed is avoided, the use of a user is facilitated, and the use comfort of the user is improved.

Further, the elastic members are respectively connected with the guide rail 210 and the lid body 100 to always drive the guide rail 210 away from the lid body 100. Therefore, the guide rail 210 is always driven to move in the direction far away from the lid body 100 by the elastic force of the elastic member, so that the guide rail 210 is kept away from the lid body 100.

Simultaneously, the elastic component not only can cushion the deformation of pot cover body 100, can avoid guide rail 210 to take place to rock moreover, is convenient for guarantee guide rail 210's guide effect, avoids guide rail 210 to shift and influences the locking of first buckle 230 and second buckle 240, is convenient for guarantee pot cover locking assembly 200 structure neat pleasing to the eye.

Further, since the middle portion of the pot cover body 100 is more easily deformed, the deformation amount of the middle portion of the pot cover body 100 is large, the guide rail 210 is arranged on the pot cover body 100 in a way of being close to or far away from the pot cover body 100, and the elastic part supporting guide rail 210 is arranged, so that the guide rail 210 can automatically avoid the position with larger deformation in the middle of the pot cover body 100, the guide rail 210 automatically adapts to the deformed pot cover body 100, enough allowance is left for the deformation of the pot cover body 100, the influence generated by the deformation of the pot cover body 100 is reduced, and the pot cover body 100 is ensured not to generate interference with the pot cover locking assembly 200 after being pressed and deformed, that is, the pot cover body 100 is not easily contacted with the guide rail 210 after being pressed and deformed upwards, so that the pressure in the pot is not easily transmitted to the guide rail 210, the guide rail 210 is still maintained in an initial linear extension state, and is not easily bent, thereby ensuring that the buckle can smoothly slide along the guide rail 210. After the pot lid body 100 is deformed by pressure, even if the pot lid body 100 is in contact with the guide rail 210, since the pressure in the pot must first deform the pot lid body 100, the pressure transmitted to the guide rail 210 is not enough to largely deform the guide rail 210.

Therefore, the pot cover assembly 1 according to the embodiment of the invention has the advantages of high reliability, comfortable use and the like.

A pot lid assembly 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

In some embodiments of the present invention, as shown in fig. 1 to 8, a lid assembly 1 according to an embodiment of the present invention includes a lid body 100 and a lid locking assembly 200.

Optionally, the maximum clearance between the guide rail 210 and the lid body 100 is greater than 2 mm. Therefore, enough allowance can be reserved for the deformation of the cooker lid body 100, and the interference of the guide rail 210 after the cooker lid body 100 is deformed by pressure can be further avoided, so that the opening and closing performance of the cooker lid body 100 is influenced.

Specifically, in the length direction of the guide rail 210, the distance from the guide rail 210 to the pot lid body 100 is gradually reduced from the middle to both ends. When the cooker cover body 100 is under the pressure in the cooker, the edge of the cooker cover body 100 is fastened with the pressure cooker through the buckle or the outer cooker, so that the middle deformation and the edge deformation of the cooker cover body 100 are different, namely, when the cooker is under the pressure in the cooker, the middle position of the cooker cover body 100 is larger than the upward displacement generated by the edge of the cooker cover body 100 due to the upward displacement generated by deformation, and the size of the displacement is gradually changed, aiming at the problem, the distance is set to be of a corresponding gradually changing structure in the embodiment mode, and when the cooker cover body 100 is ensured to have enough space to avoid the deformation of the cooker cover body 100, the integral height of the cooker cover body 100 is reduced.

Specifically, as shown in fig. 1 to 6, one of the pot cover body 100 and the guide rail 210 is provided with a guide post 110 and the other is provided with a guide hole 211, and the guide post 110 is fitted in the guide hole 211 movably in the axial direction thereof. Therefore, the guide post 110 and the guide hole 211 can be used for positioning and guiding the sliding of the guide rail 210, which not only facilitates the slidable mounting of the guide rail 210 on the pot cover body 100, but also enables the sliding of the guide rail 210 to be smoother.

More specifically, as shown in fig. 3 and 4, two guide holes 211 are provided at both ends of the guide rail 210, respectively, and two guide posts 100 are fitted into the two guide holes 211, respectively. Therefore, the stress of the guide rail 210 is more uniform, the guide rail 210 is prevented from inclining when sliding, and the stability of the guide rail 210 when sliding is improved.

According to an embodiment of the present invention, as shown in fig. 2, the elastic member is a spring 221 and is sleeved on the guide post 110, an upper end of the spring 221 abuts against a lower surface of the guide rail 210 and a lower end of the spring 221 abuts against an upper surface of the pot lid body 100 (the up-down direction is shown by an arrow a in fig. 1, 3-5). This not only facilitates the installation of the spring 221, but also positions the spring 221 using the guide post 110 to prevent the spring 221 from being displaced. Meanwhile, the guide rail 210 can be away from the lid body 100 by the elastic force of the spring 221.

According to another embodiment of the present invention, as shown in fig. 5-7, the elastic member is a spring sheet 222, the upper end of the spring sheet 222 is connected to the guide rail 210, and the lower end of the spring sheet is stopped against the upper surface of the pot lid body 100. Therefore, not only the elastic piece 222 can be conveniently arranged, but also the guide rail 210 can move towards the direction far away from the pot cover body 100 by means of the elastic force of the elastic piece 222.

Specifically, the resilient piece 222 is integrally formed with the guide rail 210. This facilitates the simplification of the assembly process of the guide rail 210 and improves the production efficiency of the pot cover assembly 1.

Figures 1-8 show a lid assembly 1 according to the invention. As shown in fig. 2, the first buckle 230 includes a first pull rod 231 slidably disposed on the guide rail 210 and a first buckle body 232 connected to the first pull rod 231, the second buckle 240 includes a second pull rod 241 slidably disposed on the guide rail 210 and a second buckle body 242 connected to the second pull rod 241, the first pull rod 231 and the second pull rod 241 are respectively provided with an avoidance groove 233 for avoiding the two guide posts 110, and the avoidance groove 233 is oriented along the length direction of the pull rod. Specifically, the escape groove 233 may be an oblong groove or a rectangular groove. Therefore, the arrangement of the guide post 110 is facilitated, the avoiding groove 233 can be used for avoiding the guide post 110, the guide post 110 is prevented from obstructing the normal movement of the pull rod, and the first pull rod 231 and the second pull rod 241 can smoothly slide, so that the pot cover body 100 can be conveniently opened or locked.

Specifically, as shown in fig. 2 and 6, the upper end of each guide post 110 is provided with a fastener 120 for stopping the guide rail 210 from being detached from the guide post 110. Therefore, the guide rail 210 can be further positioned, the guide rail 210 is prevented from being separated from the cooker cover body 100, the structural stability of the guide rail 210 is ensured, the guide rail 210 can be conveniently installed, and the installation and disassembly efficiency of the guide rail 210 is improved.

More specifically, as shown in fig. 8, the fastener 120 includes a screw 121 screwed on the guide post 110 and a washer 122 clamped between the screw 121 and the guide rail 210. The guide rail 210 can be limited by the screw 121 and the gasket 122, so that the gasket 122 can be used for stopping the guide rail 210 from being separated from the guide post 110.

Figures 1-8 show a lid assembly 1 according to the invention. As shown in fig. 3 and 4, the upper surface of the pot lid body 100 is provided with a sinking groove 130, and at least a portion of the guide rail 210 is fitted in the sinking groove 130. Therefore, the installation of the guide rail 210 is convenient, the influence of the deformation of the cooker lid body 100 on the guide rail 210 is convenient to reduce, and the whole thickness of the cooker lid assembly 1 can be conveniently controlled.

Optionally, the two ends of the guide rail 210 are provided with the bending sections extending outwards and obliquely towards the pot cover body 100. Therefore, the guide rails 210 are conveniently connected with the cooker lid body 100, the distance between the guide rails 210 and the cooker lid body 100 can be conveniently increased under the condition that the two ends of the guide rails 210 are too high, the deformation of the cooker lid body 100 is conveniently buffered, and the guide rails 210 are further prevented from deforming. Meanwhile, the heights of the two ends of the guide rail 210 can be conveniently controlled, so that the interference of the guide rail 210 on the buckle can be avoided, and the buckle and the pot cover body 100 can be conveniently buckled with each other.

Specifically, the cross section of the pot lid body 100 has a major axis and a minor axis orthogonal to each other. Specifically, the lid body 100 is substantially elliptical. Therefore, the large-block-shaped rectangular food materials can be cooked conveniently, and the use experience of a user can be improved conveniently.

More specifically, the guide rail 210 is oriented along the minor axis. So be convenient for improve pot cover locking component 200's structural strength, be convenient for improve pot cover locking component 200's stability, because more difficult emergence is out of shape on the longer axial direction of the minor axis direction of pot cover body 100, can further avoid pot cover body 100's deformation to influence the slip of buckle.

Specifically, the lid assembly 1 further includes a lid opening handle, which is in transmission connection with the first pull rod 231 and the second pull rod 241, respectively.

A cooking appliance according to an embodiment of the present invention is described below. The cooking appliance according to the embodiment of the present invention includes the pot cover assembly 1 according to the above-described embodiment of the present invention.

According to the cooking utensil of the embodiment of the invention, by utilizing the pot cover assembly 1 of the embodiment of the invention, the advantages of high reliability, comfortable use and the like are achieved.

A pot cover locking assembly according to an embodiment of the present invention is described below. The pot cover locking assembly comprises: the guide rail can be arranged on the pot cover in a close or far way; the elastic piece is respectively connected with the guide rail and the pot cover so as to drive the guide rail to be away from the pot cover; the first buckle and the second buckle are arranged on the guide rail in a mutually approaching or separating mode.

The pot cover locking assembly provided by the embodiment of the invention has the advantages of high reliability, comfort in use and the like.

Other constructions and operations of the cooking appliance according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (17)

1. A lid assembly, comprising:

a pot cover body;

a pot cover locking component for locking the pot cover body in a closed state, the pot cover locking component is installed on the pot cover body and comprises:

the guide rail can be arranged on the pot cover body in a close or far way;

the elastic piece is respectively connected with the guide rail and the pot cover body so as to drive the guide rail to be away from the pot cover body;

the first buckle and the second buckle are arranged on the guide rail in a mutually approaching or separating mode.

2. The lid assembly of claim 1, wherein a maximum clearance between the guide rail and the lid body is greater than 2 millimeters.

3. The pot cover assembly of claim 1, wherein the distance of the guide rail from the pot cover body in the length direction of the guide rail gradually decreases from the middle to both ends.

4. The lid assembly as claimed in claim 1, wherein one of the lid body and the guide rail is provided with a guide post and the other is provided with a guide hole, the guide post being fitted in the guide hole movably in an axial direction thereof.

5. The pot cover assembly according to claim 4, wherein the two guide holes are respectively formed at both ends of the guide rail, and the two guide posts are respectively fitted in the two guide holes.

6. The pot cover assembly according to claim 4, wherein the elastic member is a spring and is sleeved on the guide post, an upper end of the spring abuts against a lower surface of the guide rail and a lower end of the spring abuts against an upper surface of the pot cover body.

7. The pot cover assembly according to claim 4, wherein the elastic member is a spring, and the upper end of the spring is connected to the guide rail and the lower end of the spring abuts against the upper surface of the pot cover body.

8. The lid assembly of claim 7, wherein the resilient tab is integrally formed with the guide rail.

9. The pot cover assembly according to claim 5, wherein the first buckle comprises a first pull rod slidably disposed on the guide rail and a first buckle body connected to the first pull rod, the second buckle comprises a second pull rod slidably disposed on the guide rail and a second buckle body connected to the second pull rod, the first pull rod and the second pull rod are respectively provided with an avoidance groove for avoiding two guide posts, and the avoidance groove is oriented along the length direction of the pull rod.

10. The lid assembly of claim 5, wherein the upper end of each guide post is provided with a fastener for stopping the guide rail from disengaging from the guide post.

11. The lid assembly of claim 10, wherein the fastener comprises a screw threaded on the guide post and a washer clamped between the screw and the guide rail.

12. The lid assembly of claim 1, wherein the upper surface of the lid body is provided with a sink groove, and at least a portion of the guide rail fits within the sink groove.

13. The lid assembly of claim 1, wherein the guide rails are provided at both ends thereof with bent sections extending obliquely outward and toward the lid body.

14. The lid assembly of claim 1, wherein a cross-section of the lid body has a major axis and a minor axis that are orthogonal to each other.

15. The pot cover assembly of claim 14, wherein the guide rail is oriented along the minor axis.

16. A cooking appliance comprising a lid assembly according to any one of claims 1-15.

17. A lid locking assembly, comprising:

the guide rail can be arranged on the pot cover in a close or far way;

the elastic piece is respectively connected with the guide rail and the pot cover so as to drive the guide rail to be away from the pot cover;

the first buckle and the second buckle are arranged on the guide rail in a mutually approaching or separating mode.

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