Door lock structure and baking appliance

Abstract

The utility model relates to the technical field of baking electric appliances, in particular to a door lock structure which comprises a door lock assembly, the door lock assembly is installed on the inner side of a handle of a box door, a connecting piece connected with the door lock assembly is arranged on the inner side of the handle, and a door lock follow-up center of the door lock assembly is formed at the joint of the connecting piece and the inner side of the handle. A handle rotating center is arranged on the inner side of the handle far away from the door lock follow-up center; the door hook assembly is installed on the side, facing the handle, of the box body, and when the box door is closed, the door hook assembly and the door lock assembly are matched to lock the box door; the handle is pulled to rotate outwards along the handle rotating center, and the door lock assembly is driven to rotate outwards along the door lock follow-up center to be separated from the door hook assembly; the door lock assembly of the door lock structure is integrated on the inner side of the handle of the oven door, the matched door hook assembly is installed on the side, facing the handle, of the oven body, after the oven door is closed, the oven door can be reliably locked through cooperation of the door lock assembly and the door hook assembly, and heat loss in the oven caused by unreliable closing of the oven door can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of baking appliances, in particular to a door lock structure and a baking appliance. Background Art

[0002] Common baking appliances, such as ovens, usually have a box body that forms a baking space, and one side of the box body is open to facilitate the placement or removal of baking ingredients. In order to form a closed heating space during baking, a door is connected to the open side of the box body, and the door is opened to place ingredients in the box and then closed, and then the heating element of the oven is activated to heat and bake the ingredients.

[0003] In order to facilitate opening or closing the oven door, a handle is usually set on the oven door. However, the common oven handle is only used for users to pull the oven door. When you want to ensure that the oven door is reliably closed during baking, you also need to add a door lock structure to the oven door. However, the added door lock and the original handle will make the user's operation complicated. Based on the above practical difficulties, it is urgent to optimize the structure of the oven. Utility Model Content

[0004] The purpose of the utility model is to provide a door lock structure and a baking appliance in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] On the one hand, the utility model provides a door lock structure, comprising:

[0007] A door lock assembly, the door lock assembly is installed on the inner side of the handle of the box door, the inner side of the handle is provided with a connecting piece connected to the door lock assembly, the connection between the connecting piece and the inner side of the handle forms a door lock follow-up center of the door lock assembly, and the inner side of the handle away from the door lock follow-up center is provided with a handle rotation center;

[0008] A door hook assembly, wherein the door hook assembly is mounted on a side of the box body facing the handle, and when the box door is closed, the door hook assembly cooperates with the door lock assembly to lock the box door;

[0009] The handle is bent to rotate outward along the handle rotation center, driving the door lock assembly to rotate outward along the door lock follow-up center and disengage from the door hook assembly.

[0010] Preferably: the door lock assembly includes a lock catch;

[0011] The door hook assembly comprises a lock seat, the lock seat is provided with a lock hook adapted to the lock catch, and a guide slope is provided on a side of the lock seat facing the lock catch.

[0012] Preferably, the connecting member is a connecting rod, a mounting seat is provided on the inner side of the handle, one end of the connecting rod is rotatably connected to the mounting seat, and the other end of the connecting rod is connected to the door lock assembly.

[0013] Preferably, the connecting member is an elastic member, one end of the elastic member is connected to the inner side of the handle, and the other end of the elastic member is connected to the door lock assembly.

[0014] Preferably, the door lock assembly comprises a door lock frame, the connecting member is connected to the middle portion of the door lock frame, a first rotating shaft is provided on a side of the door lock frame close to the handle, and a lock buckle is provided on a side of the door lock frame away from the handle.

[0015] Preferably, the lock buckle is a roller, the roller is rotatably connected to the door lock frame, and the lock hook is provided with an arc groove adapted to the roller.

[0016] Preferably, the door lock assembly includes a reset member, and the reset member is used to provide a reset force to push the door lock assembly to return to an initial state after the handle is released.

[0017] Preferably, an L-shaped frame is provided on the inner side of the handle, the L-shaped frame is rotatably connected to a support frame via a second rotating shaft, and the support frame is connected to the door lock assembly.

[0018] Preferably, the L-shaped frame comprises a transverse section and a vertical section, the vertical section extends in a direction away from the center of the handle, and the second rotating shaft is arranged at the end of the vertical section.

[0019] On the other hand, the utility model further provides a baking appliance, comprising a box body and a box door, wherein the box door is provided with a handle, and the box body and the handle are installed with a door lock structure, and the outer contour of the handle is a polygon.

[0020] Compared with the prior art, the beneficial effects are as follows: by integrating the door lock assembly of the door lock structure on the inner side of the handle of the oven door, and installing the matching door hook assembly on the side of the box body facing the handle, after closing the oven door, the oven door can be reliably locked by the cooperation of the door lock assembly and the door hook assembly, which can avoid the heat loss in the oven caused by the oven door not being reliably closed. Furthermore, when the oven door needs to be opened during use, the door lock assembly can be disengaged from the door hook assembly by simply moving the handle outward. Therefore, the door lock structure of the utility model can make it convenient for users to open the oven door and ensure that the oven door is reliably closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0023] Figure 2 is a schematic structural diagram of a door hook assembly in an embodiment;

[0024] Figure 3 is a schematic diagram of the structure of the lock in the embodiment;

[0025] Figure 4 It is a structural schematic diagram of another viewing angle of an embodiment of the utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Door lock assembly; 2. Handle; 3. Second rotating shaft; 4. Door hook assembly; 5. Mounting seat; 6. Support frame; 7. L-shaped frame; 8. Reset member; 11. Lock catch; 12. Door lock frame; 13. First rotating shaft; 31. Connecting rod; 41. Lock seat; 42. Lock hook; 43. Guide slope. DETAILED DESCRIPTION

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] An oven generally includes a box body and a door, wherein a heating element is arranged in the box body to heat and bake the food placed therein, and the door is used to close or open the baking space in the box body to put in or take out the food. Commonly, a handle is provided on the door for user operation.

[0032] According to different application scenarios, ovens can be roughly divided into household ovens and commercial ovens. Among them, the door handle of a household oven is usually only used as a handle, that is, it is only used to pull the door for the user. This is because the volume of the household oven is relatively small and the frequency of continuous use is low. Therefore, the door is relatively small to match its baking volume. When using it, the box body can usually be reliably closed by directly closing the door, and there is no need to set a separate door lock. However, in commercial ovens, because of its relatively large volume and continuous and frequent use, considering the above, the door of a commercial oven usually adopts a side-opening door (if the upper door in a household oven is adopted, when the door is in an open state, the opened door will extend out of the operating table, blocking the user from approaching the door and making it inconvenient to use). However, in the case of a side-opening door, because the door of a commercial oven is large, there will be a problem of one side not being securely closed after closing the door, so it is necessary to add a door lock structure to the door.

[0033] As for the added door lock structure, most of them are to set the door lock and handle separately, but the handle and door lock are set separately, which makes the operation complicated for users. In this regard, it is proposed to integrate the handle and the door lock, but the handle with the door lock is currently a rotating handle, that is, the door is opened or closed by turning the handle clockwise or counterclockwise. The disadvantage of this structure is that the use of the rotating handle limits the type of the handle. For example, if the shape of the handle adopts a straight line profile, it is extremely inconvenient for the user to turn the handle. Based on the above practical difficulties, it is necessary to optimize the handle structure of the door, especially the handle of the commercial oven with a side-opening door.

[0034] Example 1

[0035] like Figure 1-Figure 4 As shown, this embodiment provides a door lock structure, including:

[0036] The door lock assembly 1 is installed on the inner side of the handle 2 of the box door (not shown in the figure). The inner side of the handle 2 is provided with a connecting piece connected to the door lock assembly 1. The connection between the connecting piece and the inner side of the handle 2 forms the door lock follow-up center of the door lock assembly 1. The inner side of the handle 2 away from the door lock follow-up center is provided with a handle rotation center. Among them, the handle rotation center is the rotation fulcrum when the handle 2 is opened or closed by bending. In this embodiment, in order to expand the types of handles 2 that are suitable, the handle is operated by bending, that is, the handle 2 is bent outward to open the box door based on the plane where the box door is located. Therefore, the axis of the handle rotation center is parallel to the box door. In addition, in order to facilitate user operation, the door lock can be opened together when the handle 2 is bent. The door lock follow-up center is formed at the connecting piece connecting the door lock assembly 1 and the inner side of the handle 2. In this way, when the user bends the handle 2, the connecting piece connected to the handle 2 can move accordingly, thereby driving the door lock assembly 1 connected thereto to move to release the lock on the box door.

[0037] Specifically, the handle rotation center in this embodiment can be as shown in the attached Figure 1 As shown, it is arranged at the lower part near the inner side of the handle 2, and correspondingly, the door lock servo center is arranged at the upper part inside the handle 2. In this case, when in use, the user pries the handle 2 outward from the top of the handle 2 to open the door; of course, in other variations of this embodiment, the user can pry the handle 2 outward from other directions of the handle 2. For example, the handle rotation center can be arranged at the upper part near the inner side of the handle 2, and the door lock servo center can be arranged at the bottom near the inner side of the handle 2. At this time, the user can pry the handle 2 outward from the bottom of the handle 2 to open the door.

[0038] In addition, the present embodiment is designed with a connecting piece to connect the door lock assembly 1 and the inner side of the handle 2. The connecting piece can be used to compensate for the different movement displacements of the door lock assembly 1 and the handle 2 when the handle is turned due to their being in different positions. At the same time, the power transmission of the connecting piece can drive the door lock assembly 1 to move reliably, so that the door lock assembly 1 can be unlocked smoothly by turning the handle 2.

[0039] The door hook assembly 4 is installed on the side of the box body (not shown in the figure) facing the handle 2. When the box door is closed, the door hook assembly 4 cooperates with the door lock assembly 1 to lock the box door; when the box door needs to be opened, the handle 2 is pried to rotate outward along the handle rotation center, driving the door lock assembly 1 to rotate outward along the door lock follow-up center and disengage from the door hook assembly 4.

[0040] In this embodiment, the box door on which the door lock assembly 1 is installed and the box body on which the door hook assembly 4 is installed can be a steam oven, a blast oven, a flat oven, a fermentation box, a microwave oven, etc. in a baking appliance. The door lock assembly 1 and the door hook assembly 4 can be matched by buckling, clamping, overlapping, etc., and this embodiment does not make specific restrictions on this.

[0041] The door lock structure of this embodiment, when the door of the box is kept in a closed state, can lock the door of the box by using the door lock assembly 1 installed on the inner side of the handle 2 and the door hook assembly 4 installed on the box body, so as to ensure that the door of the box reliably closes the box body and avoids heat loss in the box body during baking. When it is necessary to open the door of the box to put in the food to be baked, or to take out the food after baking, the handle 2 is bent outward to rotate the handle 2 outward around the rotation center of the handle, and at the same time, the door lock assembly 1 installed on the inner side of the handle 2 is driven to rotate outward around the follow-up center of the door lock, so that the door lock assembly 1 is separated from the door hook assembly 4, and the lock of the box door can be released, and then the door of the box can be opened. That is to say, when the door lock structure of this embodiment is used, the door of the box can be opened by only bending the handle, and the user does not need to open the door lock separately and then pull the handle, which improves the convenience of user operation. In addition, the door of the box can be opened by bending the handle 2, which can adapt to various forms of handles 2, especially for handles 2 with a straight outer contour. The user's comfort in operation can be improved by operating the handle 2 by bending, thereby improving the market competitiveness of the product.

[0042] like Figure 2 and Figure 3 As shown, the door lock assembly 1 includes a lock catch 11; the door hook assembly 4 includes a lock seat 41, the lock seat 41 is provided with a lock hook 42 adapted to the lock catch 11, and the lock seat 41 is provided with a guide slope 43 on one side facing the lock catch 11. When the door needs to be closed and locked, the lock catch 11 will be guided by the guide slope 43 to facilitate the entry of the lock catch 11 into the lock hook 42, so as to achieve the locking match between the door lock assembly 1 and the door hook assembly 4.

[0043] like Figure 4 As shown, the door lock assembly 1 also includes a reset member 8, which is used to provide a reset force to push the door lock assembly 1 back to the initial state after the handle 2 is released. Taking the handle 2 in the initial state shown in the figure as an example, when it is necessary to open the door and pry the handle 2 outward, the handle 2 is in a state of tilting outward. On this basis, the reset member 8 is designed, which can be a torsion spring, a spring, etc., and under the action of its reset force, when the door is opened and the handle 2 is released, the door lock assembly 1 can be pushed back to the initial state, and because the door lock assembly 1 is connected to the inner side of the handle 2 through a connecting member, the handle 2 can be driven to return to the vertical state.

[0044] In this embodiment, when the oven door needs to be closed again after being opened, for example, after opening the oven door to put in the food and then closing the oven door for baking, the handle 2 and the door lock assembly 1 that were moved when opening can be restored to their initial state by utilizing the reset force of the reset member 8, and the guide slope 43 in the door hook assembly 4 can be utilized to directly push the handle 2 when closing the oven door, so that the lock buckle 11 can enter the lock hook 42 to complete the locking of the oven door, thus avoiding the trouble of the user having to move the handle 2 when closing the oven door, and making the operation more convenient, especially in the scenario where commercial ovens are frequently used, the advantage of convenient operation is more obvious.

[0045] Refer again Figure 1 The door lock assembly 1 includes a door lock frame 12, which is used to support the entire door lock assembly 1. The connecting piece is connected to the middle of the door lock frame 12, and a first rotating shaft 13 is provided on the side of the door lock frame 12 close to the handle 2, and a lock catch 11 is provided on the side of the door lock frame 12 away from the handle 2. In this way, when the user moves the handle 2 to drive the connecting piece to move, the connecting piece drives the door lock frame 12 connected thereto to rotate around the first rotating shaft 13, and then the lock catch 11 installed on the other side of the door lock frame 12 rotates accordingly and disengages from the door hook assembly 4, thereby releasing the lock on the door.

[0046] Specifically, Figure 3 As shown, the lock buckle 11 adopts a roller structure, which is rotatably connected to the door lock frame 12, and the lock hook 42 is provided with an arc groove adapted to the roller. In this way, the lock buckle 11 and the door hook assembly 4 are in contact in the form of rolling friction during the movement of the door and the door, which can improve the smoothness of the action on the one hand and improve the service life of the components on the other hand. For example, when the door needs to be closed, there is rolling friction between the lock buckle 11 in the form of a roller and the guide slope 43; and when the door is opened, there is also rolling friction between the lock buckle 11 and the arc groove in the lock hook 42, which can move smoothly and reduce the wear between the components. Of course, the lock buckle 11 that forms rolling friction can also adopt other types, such as a rotating sleeve, a roller, etc., which can be flexibly selected according to needs. In addition, in other variations of this embodiment, the lock buckle 11 and the door lock frame 12 can also be fixedly installed, that is, the two cooperate in the form of sliding friction when the door is opened and closed.

[0047] Reference Figure 1 and Figure 4 , an L-shaped frame 7 is provided inside the handle 2, and the handle 2 is effectively supported by the L-shaped frame 7. In addition, the L-shaped frame 7 is rotatably connected to the support frame 6 through the second rotating shaft 3, and the support frame 6 is connected to the door lock assembly 1. Then, the door lock assembly 1 is supported by the support frame 6 and the L-shaped frame 7. Specifically, the L-shaped frame 7 includes a horizontal section and a vertical section, and the vertical section extends in a direction away from the center of the handle 2, and the second rotating shaft 3 is provided at the end of the vertical section. Figure 1 Taking the direction shown as an example, the vertical section of the L-shaped frame 7 extends downward, and a second rotating shaft 3 connected to the support frame 6 is installed at the end of the vertical section. In this way, a relatively large rotating force arm can be formed within the limited inner space of the handle 2, which reduces the user's operating force and makes it easier to pry the handle open the door.

[0048] In this embodiment, Figure 1As shown, the connecting member is in the form of a connecting rod 31, a mounting seat 5 is provided on the inner side of the handle 2, one end of the connecting rod 31 is rotatably connected to the mounting seat 5, and the other end of the connecting rod 31 is connected to the door lock assembly 1. The connecting structure in the form of a connecting rod can realize the smooth operation of opening and closing the box door and the reliable long-term use of the components, especially for the scenario where the commercial oven is frequently used to open and close the door, and the product has high reliability.

[0049] In other variations of this embodiment, the connecting member is an elastic member (not shown in the figure), for example, a spring, a spring sheet, etc., one end of the elastic member is connected to the inner side of the handle 2, and the other end of the elastic member is connected to the door lock assembly 1. The elastic member is used to drive the door lock assembly 1 to move with the handle 2, which has a simple structure and is easy to assemble.

[0050] Example 2

[0051] The utility model also provides a baking appliance, including a box body and a box door, the box door is provided with a handle 2, the box body and the handle 2 are installed with the above-mentioned door lock structure, and the outer contour of the handle 2 is a polygon. The baking appliance of this embodiment can be a steam oven, a blast oven, a flat oven, a fermentation box, a microwave oven, an air fryer oven, etc. By installing the above-mentioned door lock structure on the box body and the handle 2, it can ensure reliable locking when closing the box door, and can also make it convenient for the user to open the box door, and it can be used in various forms of the handle 2, for example, the outer contour of the handle 2 can be attached Figure 1 The square handle provided may also be a triangle, a pentagon, a hexagon or other shapes. That is, even if the baking appliance of this embodiment adopts a polygonal handle 2, the user can open the door by twisting the handle 2, which provides a better sense of comfort during operation.

[0052] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A door lock structure, characterized in that: include: A door lock assembly (1), the door lock assembly (1) being mounted on the inner side of a handle (2) of a door, the inner side of the handle (2) being provided with a connecting piece connected to the door lock assembly (1), the connection between the connecting piece and the inner side of the handle (2) forming a door lock follow-up center of the door lock assembly (1), and the inner side of the handle (2) being provided with a handle rotation center away from the door lock follow-up center; A door hook assembly (4), wherein the door hook assembly (4) is mounted on a side of the box body facing the handle (2), and when the box door is closed, the door hook assembly (4) cooperates with the door lock assembly (1) to lock the box door; The handle (2) is moved to rotate outward along the handle rotation center, thereby driving the door lock assembly (1) to rotate outward along the door lock follow-up center and disengage from the door hook assembly (4).

2. A door lock structure according to claim 1, characterized in that: The door lock assembly (1) comprises a lock catch (11); The door hook assembly (4) comprises a lock seat (41), the lock seat (41) is provided with a lock hook (42) adapted to the lock catch (11), and a guide slope (43) is provided on a side of the lock seat (41) facing the lock catch (11).

3. A door lock structure according to claim 1 or 2, characterized in that: The connecting member is a connecting rod (31), a mounting seat (5) is provided inside the handle (2), one end of the connecting rod (31) is rotatably connected to the mounting seat (5), and the other end of the connecting rod (31) is connected to the door lock assembly (1).

4. A door lock structure according to claim 1 or 2, characterized in that: The connecting member is an elastic member, one end of which is connected to the inner side of the handle (2), and the other end of which is connected to the door lock assembly (1).

5. A door lock structure according to claim 2, characterized in that: The door lock assembly (1) comprises a door lock frame (12), the connecting piece is connected to the middle part of the door lock frame (12), a first rotating shaft (13) is provided on a side of the door lock frame (12) close to the handle (2), and a lock catch (11) is provided on a side of the door lock frame (12) away from the handle (2).

6. A door lock structure according to claim 5, characterized in that: The lock buckle (11) is a roller, the roller is rotatably connected to the door lock frame (12), and the lock hook (42) is provided with an arc groove adapted to the roller.

7. A door lock structure according to claim 1, characterized in that: The door lock assembly (1) comprises a reset member (8), and the reset member (8) is used to provide a reset force for pushing the door lock assembly (1) to return to an initial state after the handle (2) is released.

8. A door lock structure according to claim 1, characterized in that: An L-shaped frame (7) is provided on the inner side of the handle (2); the L-shaped frame (7) is rotatably connected to a support frame (6) via a second rotating shaft (3); and the support frame (6) is connected to the door lock assembly (1).

9. A door lock structure according to claim 8, characterized in that: The L-shaped frame (7) comprises a transverse section and a vertical section, the vertical section extends in a direction away from the center of the handle (2), and the second rotating shaft (3) is arranged at the end of the vertical section.

10. A baking appliance, comprising a box body and a door, wherein the door is provided with a handle (2), characterized in that: The box body and the handle (2) are installed with a door lock structure according to any one of claims 1 to 9, and the outer contour of the handle (2) is a polygon.

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