Oven door opening and closing structure with stable opening and closing and locking enhancing functions

Abstract

The utility model discloses an oven door opening and closing structure with stable opening and closing and enhanced locking functions, which adopts a rotating dislocation heterogeneous spring mechanism to realize smooth transition of a door body between an opening state and a closing state. When the door body is opened, the force arm piece generates reverse pulling force through the rotating dislocation avoiding effect of the rotating shaft and the door frame and the pulling force effect of the spring, coordination and cooperation of force in multiple directions are achieved, the problems that force is not uniform and impact force is too large due to single force are solved, and the safety and stability of door opening operation are improved. When the door body is closed, accurate positioning and stable locking are ensured by using the same mechanism, and the problem that a traditional locking mode is not durable is solved. Besides, fastening sound generated during mechanical locking of the structure can provide visual acoustic feedback for a user, dependence on an electronic sensor is avoided, use of circuit components is reduced, the structure is particularly suitable for kitchen equipment in a high-temperature environment, and failure of the electronic components is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen utensils, in particular to an oven door opening and closing structure with a stable switch and enhanced locking function. Background Art

[0002] The switch structure of the oven door is crucial in kitchen utensils, and its design directly affects the use safety, operation convenience and overall service life of the equipment. For example:

[0003] 1. The traditional oven door structure usually realizes the opening and closing functions through simple hinges and a single-direction force. Although this method can meet the basic needs in the case of low-frequency use, it exposes a series of problems in high-frequency use scenarios (such as commercial kitchen equipment like pizza ovens).

[0004] 2. Due to the action of the single-direction force, the door body is prone to uneven stress during the opening and closing process, resulting in the door body shaking, excessive impact force, and even possible damage to the door body structure, affecting the use safety and equipment life.

[0005] To solve these problems, electronic sensors and electric locking devices are introduced in the prior art. The sensor senses the state of the door body and controls the electric device to lock or release. This method improves the locking accuracy and the smoothness of opening and closing to a certain extent, but there are also significant defects. First, the electronic sensors and circuit components are prone to heat failure in a high-temperature environment (such as inside the oven), resulting in a decrease in equipment stability. Second, the electronic components increase the complexity and cost of the equipment, and at the same time increase the difficulty of maintenance and replacement. In addition, relying on the feedback information of the electronic device to judge the state of the door body lacks intuitiveness and the user experience is poor.

[0006] Therefore, how to achieve the stable opening and closing and firm locking of the oven door body in high-frequency use and high-temperature environments, while avoiding the problems caused by the failure of electronic components and the single-direction force, has become the technical problem to be solved by the utility model. Summary of the Utility Model

[0007] The technical problem solved by the utility model is to provide an oven door opening and closing structure with a stable switch and enhanced locking function to solve the problems of unstable opening and closing of the oven door body, insecure locking, and easy failure of the electronic locking device at high temperatures as mentioned in the above background art.

[0008] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0009] An oven door opening and closing structure with stable switching and enhanced locking functions, comprising a door frame and a door body. The door body includes a side portion and another side portion. The position of the door body near the side portion is rotationally and cooperatively connected to the door frame. This oven door opening and closing structure with stable switching and enhanced locking functions further includes a rotationally misaligned heterogeneous spring mechanism. The position of the door body near the other side portion is lockingly and cooperatively connected to the door frame through the rotationally misaligned heterogeneous spring mechanism;

[0010] The rotationally misaligned heterogeneous spring mechanism includes a clamping plate with a buckling hole and a fastener mechanism;

[0011] One side of the clamping plate is fixedly connected to the door body; the fastener mechanism is fixedly arranged on the door frame;

[0012] The fastener mechanism includes a force arm member, a support seat, a spring, a laterally extending plate, and a spring piece;

[0013] The force arm member includes a first force arm, a second force arm, and a force arm connection area;

[0014] The support seat is fixedly connected to the door frame;

[0015] The force arm connection area is rotationally and cooperatively connected to the door frame through a rotating shaft arranged on the support seat;

[0016] The first force arm is buckled and connected to the buckling hole;

[0017] One end of the spring is connected to the force arm connection area, and the other end of the spring is connected to the laterally extending plate on the support seat;

[0018] A spring piece cooperating with the second force arm is arranged on the support seat through a positioning seat;

[0019] The door frame and the door body include a closed state and an open state. When the door frame and the door body are in the closed state, the first force arm is buckled on the buckling hole of the clamping plate, and the second force arm is in elastic contact with the spring piece; when the door frame and the door body are in the open state, the first force arm and the second force arm are separated from the clamping plate and the spring piece respectively.

[0020] As a further solution of the present utility model, one side portion of the door body is the lower side portion, and the other side portion is the upper side portion.

[0021] As a further solution of the present utility model, the number of the rotationally misaligned heterogeneous spring mechanisms is 2.

[0022] As a further solution of the present utility model, the door body further includes a left side portion and a right side portion. The two rotationally misaligned heterogeneous spring mechanisms are respectively located on the other side portion of the door body and near the left side portion and the right side portion of the door body.

[0023] As a further solution of the utility model, the clamping plate comprises an upper plate surface and a lower plate surface, and the buckling holes penetrate through the upper plate surface and the lower plate surface of the clamping plate.

[0024] As a further solution of the utility model, the shape of the buckling holes is strip-shaped, and the clamping plate is parallel to the horizontal line.

[0025] As a further solution of the utility model, the first force arm, the second force arm and the force arm connection area are of an integral structure.

[0026] As a further solution of the utility model, one end of the spring is connected to the force arm connection area through a horizontally extending hanging post in a hanging connection manner, and the other end of the spring is connected to the horizontally extending plate on the support seat in a hanging connection manner.

[0027] As a further solution of the utility model, the length of the first force arm is less than the length of the second force arm.

[0028] As a further solution of the utility model, the elastic sheet comprises one end, the other end and the middle part. One end of the elastic sheet is fixedly connected to the positioning seat, the other end of the elastic sheet is provided with an arc-shaped protrusion, the middle part of the elastic sheet contacts the positioning seat through an arc-shaped convex post, and the arc-shaped convex post and the positioning seat are of an integral structure.

[0029] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0030] 1. The rotation misalignment heterogeneous spring mechanism is adopted, and the combination of multi-directional forces is skillfully utilized, significantly improving the stability and durability of the opening and closing operations of the oven door body. When the door body enters the open state from the closed state, through the rotation misalignment avoidance between the rotating shaft and the door frame, the smooth movement of the force arm member is realized. At the same time, the spring is used to pull the force arm connection area, so that the force arm member generates a reverse force away from the clamping plate. This design of the combination of rotation and misalignment can effectively coordinate various forces during the opening process, avoiding the problems of uneven force and excessive impact force caused by a single force, thus ensuring the smoothness and safety of the opening operation.

[0031] 2. When the door body enters the closed state from the open state, the present invention still realizes accurate positioning and locking effects through the same rotation and misalignment combination mechanism. This design overcomes the problem of poor durability of the traditional single locking method. Through the coordinated action of multi-directional forces, the door body is more firmly and reliably closed when closed, extending the service life.

[0032] 3. The mechanical fit design can produce a clear fastening sound when locked, enabling users to intuitively judge the closed or open state of the door body through the sound. This feedback method reduces the use of circuit components compared to electronic locking control that relies on sensors, lowering the risk of failure and maintenance costs. Especially for high-temperature kitchen appliances such as pizza ovens, the mechanical fit of various methods and different-direction forces in the present invention effectively avoids the problem of electronic component failure caused by high temperature, thus improving the safety and reliability of the equipment.

[0033] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic structural diagram of the present utility model.

[0036] Figure 2 is Figure 1 an enlarged schematic view of part A of

[0037] Figure 3 It is a schematic structural diagram of the door body of the present utility model in the open state.

[0038] The reference numerals and names in the drawings are as follows:

[0039] Door frame 1, door body 2, buckle hole 3, clamping plate 4, force arm member 5, support seat 6, spring 7, horizontally extending plate 8, elastic piece 9, first force arm 10, second force arm 11, force arm connection area 12, positioning seat 13, horizontally extending hanging post 14, arc-shaped protrusion 15, arc-shaped protruding post 16, rotating shaft 17, and hinge 18. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0041] Please refer to Figure 1—3, in the embodiment of the present utility model, an oven door opening and closing structure with a stable switch and enhanced locking function includes a door frame 1 and a door body 2. The door body 2 includes a side part and the other side part. The position of the door body 2 close to the side part is rotationally and cooperatively connected with the door frame 1. The oven door opening and closing structure with a stable switch and enhanced locking function further includes a rotationally misaligned heterogeneous spring mechanism. The position of the door body 2 close to the other side part is lockingly and cooperatively connected with the door frame 1 through the rotationally misaligned heterogeneous spring mechanism; the rotationally misaligned heterogeneous spring mechanism includes a clamping plate 4 having a buckle hole 3 and a fastener mechanism; one side of the clamping plate 4 is fixedly connected with the door body 2; the fastener mechanism is fixedly arranged on the door frame 1; the fastener mechanism includes a force arm member 5, a support seat 6, a spring 7, a laterally extending plate 8 and a spring piece 9;

[0042] The force arm member 5 includes a first force arm 10, a second force arm 11 and a force arm connection area 12; the support seat 6 is fixedly connected with the door frame 1; the force arm connection area 12 is rotationally and cooperatively connected with the door frame 1 through a rotating shaft 17 arranged on the support seat 6; the first force arm 10 is buckled and connected with the buckle hole 3; one end of the spring 7 is connected with the force arm connection area 12, and the other end of the spring 7 is connected with the laterally extending plate 8 on the support seat 6; a spring piece 9 cooperating with the second force arm 11 is arranged on the support seat 6 through a positioning seat 13; the door frame 1 and the door body 2 include a closed state and an open state. When the door frame 1 and the door body 2 are in the closed state, the first force arm 10 is buckled in the buckle hole 3 of the clamping plate 4, and the second force arm 11 is in elastic contact with the spring piece 9; when the door frame 1 and the door body 2 are in the open state, the first force arm 10 and the second force arm 11 are separated from the clamping plate 4 and the spring piece 9 respectively. One side part of the door body 2 is the lower side part, and the other side part is the upper side part. The number of the rotationally misaligned heterogeneous spring mechanisms is 2.

[0043] The door body 2 further includes a left side part and a right side part. The two rotationally misaligned heterogeneous spring mechanisms are respectively located on the other side part of the door body 2 and close to the left side part and the right side part of the door body 2. The clamping plate 4 includes an upper plate surface and a lower plate surface, and the buckle hole 3 penetrates through the upper plate surface and the lower plate surface of the clamping plate 4. The shape of the buckle hole 3 is strip-shaped, and the clamping plate 4 is parallel to the horizontal line. The first force arm 10, the second force arm 11 and the force arm connection area 12 are of an integral structure. One end of the spring 7 is hung and connected with the force arm connection area 12 through a laterally extending hanging post 14, and the other end of the spring 7 is hung and connected with the laterally extending plate 8 on the support seat 6. The length of the first force arm 10 is less than the length of the second force arm 11. The spring piece 9 includes one end, the other end and a middle part. One end of the spring piece 9 is fixedly connected with the positioning seat 13. The other end of the spring piece 9 is provided with an arc-shaped protrusion 15. The middle part of the spring piece 9 is in contact with the positioning seat 13 through an arc-shaped convex post 16, and the arc-shaped convex post 16 and the positioning seat 13 are of an integral structure.

[0044] In this technical solution, a rotating misaligned heterogeneous spring mechanism is adopted. Through ingenious structural design and different combination forms of springs, the coordinated cooperation of multi-directional forces during the opening and closing process of the door body 2 is achieved, thus significantly improving the stability and durability of the oven door. The following is a specific description of how each structural form achieves these effects:

[0045] 1. Coordinated cooperation of multi-directional forces: When the door body 2 moves from the closed state to the open state, the rotating misaligned heterogeneous spring mechanism, through the rotational cooperation between the rotating shaft 17 and the door frame 1, causes the force arm member 5 to rotate around the support seat 6, generating a smooth rotation process. During this process, one end of the spring 7 is fixed to the force arm connection area 12, and the other end is fixed to the lateral extension plate 8 of the support seat 6. When the user pulls the door body 2, the spring 7 is stretched, generating a reverse pulling force acting on the force arm member 5, causing the force arm member 5 to gradually move away from the clamping plate 4. This design enables the force arm member 5 to be misaligned and avoid the impact caused by direct force during force application, forming a stable opening and closing action.

[0046] 2. Spring form and principle of action: Different from the traditional design with single-direction force application, the spring 7 in this technical solution combines longitudinal force and lateral force through a rotating misaligned structure. During the door opening process, the pulling force of the spring 7 is not simply a longitudinal action, but this pulling force is decomposed into a resultant force in multiple directions through the rotation of the force arm member 5. The existence of this resultant force enables the force arm member 5 to be no longer affected by a single-direction force, but rather by the balanced action of multi-directional forces, greatly reducing the shaking and impact feeling during opening and closing.

[0047] 3. Achievement of smooth opening and closing: When the door body 2 is in the closed state, the first force arm 10 is buckled into the buckle hole 3 of the clamping plate 4, and at the same time, the second force arm 11 cooperates with the elastic piece 9 to form a stable locking state. During the process of opening the door, the pulling force of the spring 7 gradually acts on the force arm connection area 12. Through the rotating misaligned structure, the movement path of the force arm member 5 is precisely controlled, enabling it to smoothly move around the rotating shaft 17. The pulling force of the spring 7 is gradually balanced and distributed in all directions, avoiding sudden force impacts. This design not only improves the smoothness of the opening and closing operation but also effectively reduces the risk of damage caused by the violent movement of the door body 2.

[0048] 4. Clever utilization of reverse force: The spring 7 in the design is not only for providing a simple pulling force, but through its different forms and positions, it enables the force arm member 5 to be reversely stressed. During the closing process of the door body 2, through the gradually increasing pulling force of the spring 7, the force arm member 5 is pushed towards the clamping plate 4 direction, causing the door body 2 to be locked in place again. This reverse application of force not only ensures a smooth transition during the opening and closing process but also significantly improves the locking reliability of the door body 2 under high-frequency usage conditions.

[0049] Example 1:

[0050] In a commercial pizza oven frequently used in a high-temperature environment, due to the action of a single-direction force on the traditional oven door structure, uneven stress is likely to occur during frequent opening and closing operations, resulting in the shaking of the door body 2, excessive impact force, and even damage to the door body 2 or failure of the locking. To solve these problems, this embodiment provides an oven door structure with a smooth opening and closing function and enhanced locking function.

[0051] In this embodiment, one side of the door body 2 of the pizza oven is connected to the door frame 1 through a hinge 18, and the other side is cooperated with the door frame 1 through the rotation misalignment isomerism spring mechanism of the present invention to achieve locking, opening and closing. Specifically, when the user needs to open the pizza oven door body 2, the user pulls the position near the other side of the door body 2. The clamping plate 4 is fixedly connected to the door body 2, and the clamping plate 4 exerts a pulling action on the first force arm 10, prompting the force arm member 5 to rotate around the rotating shaft 17 on the door frame 1. At the same time, the spring 7 is connected between the connecting area of the force arm member 5 and the transverse extension plate 8 of the support seat 6, and through the pulling force, the force arm member 5 generates a force acting away from the clamping plate 4.

[0052] The combined movement of rotation and misalignment cleverly coordinates the multi-directional forces when the door body 2 is opened, making the opening and closing operations of the door body 2 smoother and more stable, and avoiding the problems of shaking and excessive impact force of the door body 2 caused by a single-direction force in the traditional structure. In addition, the coordinated action of this multi-directional force enables the door body 2 not to have a sudden impact during the opening and closing process, effectively extending the service life of the oven door body 2.

[0053] When the user needs to close the pizza oven door body 2, the door body 2 gradually returns to the closed position under the action of its own weight or a slight external force, and the clamping plate 4 is re-fastened to the first force arm 10. At this time, the spring 7 of the rotation misalignment isomerism spring mechanism continues to act on the force arm connection area 12 through the pulling force, and the force arm member 5 automatically adjusts its position to achieve the firm locking of the door body 2 and the door frame 1. Compared with the traditional electric locking method controlled by an electronic sensor, this structure can produce a clear fastening sound when locking, and the user can judge whether the door body 2 is completely closed through the sound, thereby improving the user experience. In addition, the mechanical locking method adopted in this embodiment completely relies on physical structures and mechanical principles, without the assistance of electronic components, avoiding the problem that electronic components may fail in a high-temperature environment, and improving the stability and durability of the device.

[0054] In practical applications, the structure of this embodiment not only realizes reliable opening and closing and locking functions under high-frequency use conditions in a pizza oven, but also is particularly suitable for other high-temperature kitchen utensils, such as commercial ovens, steam ovens, etc. This design significantly improves the safety and service life of the equipment in a high-temperature environment, and solves the problems existing in the traditional technology, such as uneven single-direction force, excessive impact force, insecure locking, and easy failure of the electronic locking device at high temperature.

[0055] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. An oven door switch structure with smooth opening and closing and enhanced locking functions, comprising a door frame and a door body, wherein the door body comprises a side portion and another side portion, and a position of the door body close to the side portion is rotatably connected with the door frame, characterized in that: The oven switch door structure with smooth opening and closing and enhanced locking functions also includes a rotational misalignment heterogeneous spring mechanism, and the position of the door body close to the other side is locked and matched with the door frame through the rotational misalignment heterogeneous spring mechanism; The rotational misalignment heterogeneous spring mechanism comprises a card plate with a buckle hole, and a buckle mechanism; One side of the card plate is fixedly connected to the door body; The fastener mechanism is fixedly arranged on the door frame; The fastener mechanism comprises a force arm member, a support seat, a spring, a transverse extension plate and a spring sheet; The lever member comprises a first lever, a second lever and a lever connection area; The support seat is fixedly connected to the door frame; The arm connection area is rotationally connected with the door frame through a rotating shaft arranged on the support seat; The first force arm is buckled and connected with the button hole; One end of the spring is connected to the force arm connection area, and the other end of the spring is connected to the transverse extension plate on the support seat; A spring piece matched with the second force arm is arranged on the support seat through the positioning seat; The door frame and the door body include a closed state and an open state. When the door frame and the door body are in the closed state, the first force arm is buckled on the buckle hole of the clamping plate, and the second force arm is in elastic contact with the spring sheet; when the door frame and the door body are in the open state, the first force arm and the second force arm are respectively disengaged from the clamping plate and the spring sheet.

2. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: One side of the door body is a lower side, and the other side is an upper side.

3. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: The number of the rotationally offset heterogeneous spring mechanisms is 2.

4. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 3, characterized in that: The door body also includes a left side portion and a right side portion, and two rotationally offset heterogeneous spring mechanisms are respectively located on the other side portion of the door body and close to the left side portion and the right side portion of the door body.

5. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: The card plate comprises an upper plate surface and a lower plate surface, and the button holes penetrate through the upper plate surface and the lower plate surface of the card plate.

6. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: The button hole is in the shape of an elongated strip, and the clamping plate is parallel to the horizontal line.

7. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: The first lever arm, the second lever arm and the lever arm connection area are an integrated structure.

8. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: One end of the spring is hooked and connected to the force arm connection area through a transversely extending hanging column, and the other end of the spring is hooked and connected to the transverse extension plate on the support seat.

9. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: The length of the first lever arm is smaller than the length of the second lever arm.

10. The oven door opening and closing structure with smooth opening and closing and enhanced locking function according to claim 1, characterized in that: The spring piece includes one end, the other end and a middle part. One end of the spring piece is fixedly connected to the positioning seat. The other end of the spring piece is provided with an arc-shaped protrusion. The middle part of the spring piece contacts the positioning seat through an arc-shaped protrusion. The arc-shaped protrusion and the positioning seat are an integrated structure.

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