Intelligent rotary door lock for universal steaming oven

Abstract

The utility model discloses an intelligent rotary door lock for a universal steaming oven, which relates to the technical field of door locks and comprises a main body, a lead screw coupling mounted at the top of the main body, an extension shaft arranged on one side of the lead screw coupling and used for controlling opening and closing of a door through rotation, and a motor mounted at the bottom of the lead screw coupling and used for driving the lead screw coupling to operate, the outer side of the output end of the lead screw coupler is sleeved with a special-shaped lead screw nut used for converting rotary motion into linear motion. The extension shaft can be driven to rotate and axially move through motor driving in cooperation with transmission of components such as a lead screw coupler, an equipment door can be automatically controlled to be locked or unlocked, tensioning force can be adjusted according to different depths and rotation angles, sealing is guaranteed, and when electric control fails due to power failure, the equipment door can be automatically locked or unlocked. The spring bolt can be pulled up manually to slide to drive the extending shaft to rotate, so that the opening and closing functions of normal rotating, extending and tensioning are realized, the door lock is safely opened, and the door lock is convenient and practical.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of door locks, in particular to an intelligent rotary door lock for a universal steaming oven. BACKGROUND

[0002] The steaming oven is a kitchen appliance combining cooking and baking. It realizes the functions of steaming and baking through the built-in steam generator and heating element. The steaming oven usually includes a steam generator and a heating element, which can generate steam through electric heating to steam food and bake food through a heating pipe.

[0003] At present, the door locks of existing steaming ovens, steam ovens and other appliances are generally manually pulled open, which is laborious and not intelligent. In addition, the door locks of some steaming ovens, steam ovens and other appliances cannot be safely opened after power failure, which brings inconvenience to users and affects the user experience. To solve the above problems, the application provides an intelligent rotary door lock for a universal steaming oven. CONTENT OF THE INVENTION

[0004] In order to solve the above problems, the application provides an intelligent rotary door lock for a universal steaming oven.

[0005] The application provides an intelligent rotary door lock for a universal steaming oven, which adopts the following technical scheme:

[0006] The intelligent rotary door lock for a universal steaming oven comprises a main body, a lead screw coupling installed on the top of the main body, an extension shaft arranged on one side of the lead screw coupling and used for controlling the opening and closing of the door through rotation, and a motor installed at the bottom of the lead screw coupling and used for driving the operation of the lead screw coupling; a special-shaped lead screw nut for converting rotary motion into linear motion is sleeved on the outer side of the output end of the lead screw coupling, a spring latch is fixedly installed on the outer side of the special-shaped lead screw nut, the extension shaft is arranged at one end of the spring latch, a rotary cam track for limiting the rotation angle of the extension shaft is arranged in the main body, and a loosening position switch and a tensioning position switch for controlling the start and stop positions of the extension shaft are arranged on the top of the main body.

[0007] Through the above technical scheme, the extension shaft is driven to rotate and move axially through the driving of the motor and the transmission of the lead screw coupling and other components, so as to realize the automatic control of the device door to be locked or opened. When the electric control fails due to power failure, the spring latch can be manually pulled up to slide the spring latch and drive the extension shaft to rotate, so as to realize the normal rotation and tensioning of the opening and closing function, thereby safely opening the door lock.

[0008] Preferably, a wear-resistant shaft sleeve is arranged on the outer side of the output end of the lead screw coupling, a shaft sleeve seat is fixedly installed on the top of the main body on the outer side of the wear-resistant shaft sleeve, and a hook is fixedly installed at the end of the extension shaft.

[0009] By adopting the technical scheme, the wear-resistant shaft sleeve and the shaft sleeve seat can be connected with the lead screw coupling and the special-shaped lead screw nut, and large torque tension can be transmitted without screw fixation, preventing screw loosening and failure caused by long-time vibration.

[0010] Preferably, the top of the shaft sleeve seat is provided with a first adjustable sheet metal, and the release-to-position switch is fixedly installed on the top of the first adjustable sheet metal.

[0011] By adopting the technical scheme, the first adjustable sheet metal can connect the shaft sleeve seat and the release-to-position switch, and the second adjustable sheet metal can connect the main body and the tension-to-position switch, and the release and tension start-stop positions of the box door are determined by the release-to-position switch and the tension-to-position switch.

[0012] Preferably, the bottom of the main body is provided with a height adjusting mechanism, which comprises a threaded rod threaded in the main body, and a fixed plate rotatably arranged at the bottom of the threaded rod and abutting against one side of the main body.

[0013] By adopting the technical scheme, the fixed plate is installed on the steaming and baking oven, and rotating the threaded rod can drive the main body and the extension shaft and other components to lift, so that the intelligent door lock can open and close the door body of different heights, and the application range is wide.

[0014] In summary, the present application has at least one of the following beneficial technical effects:

[0015] 1. By motor driving, cooperating with the transmission of lead screw coupling and other components, the extension shaft can be rotated and axially moved to automatically control the equipment door to be locked or opened, and the tension force can be adjusted according to the size of different depths and rotation angles to ensure sealing. When the power fails and the electric control fails, the spring latch can be manually pulled up to slide the spring latch and drive the extension shaft to rotate, realizing the normal rotation and extension of the switch function, so as to safely open the door lock, which is convenient and practical.

[0016] 2. By installing the fixed plate on the steaming and baking oven and rotating the threaded rod, the main body and the extension shaft and other components can be lifted, so that the intelligent door lock can open and close the door body of different heights, and the application range is wide. The different depth tension functions of different steaming and baking oven doors are realized, and the unhooking (release) functions of different steaming and baking oven doors are realized, and the manual operation scheme is provided when the automation fails, which is more versatile and comprehensive. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an intelligent rotary door lock for a universal steam oven according to an embodiment of this application;

[0018] Figure 2 This is a front view connecting diagram of the internal structure of the main body and the fixing plate, which is the main embodiment of this application.

[0019] Figure 3 This is a right-side view connecting the internal structure of the main body and the fixing plate, which is the main embodiment of this application.

[0020] Figure 4 This is a frontal view showing the connection between the fixing plate and the threaded rod, which is the main embodiment of this application.

[0021] Reference numerals: 1. Motor; 2. Lead screw coupling; 3. Wear-resistant bushing; 4. Bushing seat; 5. Special-shaped lead screw nut; 6. Loosening position switch; 7. Spring pin; 8. First adjustable sheet metal; 9. Hook; 10. Extending shaft; 11. Main body; 12. Second adjustable sheet metal; 13. Tensioning position switch; 14. Threaded rod; 15. Fixing plate; 16. Rotating plate; 17. Fixing hole; 18. Handle. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0023] This application discloses an intelligent rotary door lock for a universal steam oven.

[0024] A smart rotary door lock for a multi-purpose steam oven, see reference. Figures 1-2 The system includes: a main body 11, a lead screw coupling 2, an extension shaft 10, and a motor 1. The lead screw coupling 2 is installed on the top of the main body 11, and the extension shaft 10 is located on one side of the lead screw coupling 2 and is used to control the opening and closing of the door by rotation. The motor 1 is installed at the bottom of the lead screw coupling 2 and is used to drive the lead screw coupling 2. Based on the main body 11, the lead screw coupling 2 and other parts are assembled. The motor 1 can be an existing high-precision active power motor that can feedback speed and current. The rotational force is transmitted through the lead screw coupling 2. It can withstand high torque tension according to the stress conditions of the working conditions.

[0025] Reference Figure 1 The output end of the lead screw coupling 2 is fitted with a special-shaped lead screw nut 5 for converting rotary motion into linear motion. The output end of the lead screw coupling 2 is provided with a wear-resistant bushing 3. The bushing 3 is provided with a bushing seat 4 fixedly installed on the top of the main body 11. The lead screw coupling 2 and the special-shaped lead screw nut 5 can be connected through the wear-resistant bushing 3 and the bushing seat 4. It can realize the transmission of large torque without screw fixation, prevent the problem of screw loosening and failure caused by long-term vibration, and the machining parts do not require high-precision machining.

[0026] Reference Figure 1 A spring pin 7 is fixedly installed on the outside of the irregular-shaped lead screw nut 5. The extension shaft 10 is located at one end of the spring pin 7. The main body 11 is provided with a rotary cam track for limiting the rotation angle of the extension shaft 10. The irregular-shaped lead screw nut 5 is fitted with the lead screw coupling 2, which can convert the rotational motion into linear motion. The extension shaft 10 is driven by the spring pin 7, which can realize the mechanical tripping protection effect after the extension shaft 10 is overloaded. Furthermore, due to the setting of the spring pin inside the spring pin 7, the spring pin inside the spring pin 7 can be manually pulled up in the event of power failure or electrical control failure. The sliding spring pin 7 drives the extension shaft 10 to realize the normal rotation extension tensioning switch function. The rotation angle of the extension shaft 10 is limited by the rotary cam track of the main body 11, which can cope with equipment that requires end rotation switch lock and rear linear motion tensioning.

[0027] Reference Figure 1 A hook 9 is fixedly installed at the end of the protruding shaft 10. The hook 9 installed at the end of the protruding shaft 10 can be used to cooperate with the original fixed hook of the main body of the steam oven and other equipment to tighten it.

[0028] Reference Figure 1 The main body 11 is equipped with a release position switch 6 and a tension position switch 13 at the top for controlling the start and stop positions of the extension shaft 10. The bushing seat 4 is equipped with a first adjustable sheet metal 8 at the top. The release position switch 6 is fixedly installed on the top of the first adjustable sheet metal 8. The main body 11 is equipped with a second adjustable sheet metal 12 on one side. The tension position switch 13 is fixedly installed on one side of the second adjustable sheet metal 12. The first adjustable sheet metal 8 can connect the bushing seat 4 and the release position switch 6. The second adjustable sheet metal 12 can connect the main body 11 and the tension position switch 13. The start and stop positions of the opening and tightening of the door are determined by the release position switch 6 and the tension position switch 13.

[0029] Reference Figures 2-4 The main body 11 has a height adjustment mechanism at its bottom. The height adjustment mechanism includes a threaded rod 14 threaded inside the main body 11 and a fixed plate 15 rotatably disposed at the bottom of the threaded rod 14 and abutting against one side of the main body 11. A rotating plate 16 is fixedly disposed at the bottom of the threaded rod 14 and is rotatably connected to the fixed plate 15. Several fixing holes 17 for bolts to pass through are opened on the edge of the fixed plate 15. Two sets of handles 18 are fixedly disposed on the outer wall of the top of the threaded rod 14. The fixed plate 15 can be installed on equipment such as a steam oven by passing bolts through the fixing holes 17. The rotating plate 16 can connect the threaded rod 14 and the fixed plate 15, so that the threaded rod 14 can rotate on the fixed plate 15 without disengaging. The main body 11 can limit the abutting fixed plate 15, so that the main body 11 can move up and down on the top of the fixed plate 15.

[0030] The operator can rotate the threaded rod 14 by using the handle 18. With the connection of the rotating plate 16 and the limiting of the main body 11, the main body 11 can be moved up and down on the top of the fixed plate 15 to control the height of the main body 11 and the extension shaft 10 and other components. This allows the smart door lock to open and close doors of different heights, making it widely applicable.

[0031] The implementation principle of the intelligent rotating door lock for a universal steam oven in this application embodiment is as follows:

[0032] Motor 1 can drive screw coupling 2 to run and transmit rotational force. Screw coupling 2, which is fitted with special-shaped screw nut 5, can convert rotational motion into linear motion. Thus, through spring pin 7, it drives extension shaft 10 to achieve mechanical tripping protection after extension shaft 10 is overloaded. After the extension shaft 10 rotates, it can press the oven door against the oven or detach it from the oven to open and close the oven door. The rotation angle of extension shaft 10 is limited by the rotation cam track of main body 11, which can cope with equipment that requires end rotation switch lock and rear linear motion tensioning.

[0033] Furthermore, due to the setting of the spring pin inside the spring pin 7, in the event of power failure or electrical control failure, the spring pin inside the spring pin 7 can be manually pulled up, and the sliding spring pin 7 can drive the extension shaft 10 to realize the normal rotation extension and tightening switch function.

[0034] Specifically, when the system receives the start command, the main drive motor 1 rotates forward, the extension shaft 10 moves forward, driving the spring pin 7 to rotate and move axially in conjunction with the rotating cam track of the main body 11, triggering the release position switch 6, and the system stops.

[0035] When the system receives the shutdown command, the main drive motor 1 reverses, the extension shaft 10 moves backward, driving the spring pin 7 to rotate and move axially in conjunction with the rotating cam track of the main body 11, triggering the tensioning switch 13, and the system stops;

[0036] Overall, it enables intelligent switching and adjustment of door-equipped appliances such as steam ovens, reducing unattended automation time. It can determine the tension level and status based on feedback signals such as the speed, current, and voltage of motor 1, and can determine the position status based on feedback signals from two position detection switches. It can switch between rotation and linear motion modes to meet the needs of rotary switch tensioning. It can also be adjusted according to the gap size of the actual application to achieve different depth tensioning functions for different steam oven doors, as well as different depth unhooking (releasing) functions for different steam oven doors that require different rotation depths. It also has a manual operation solution in case of automation failure, making it more versatile and comprehensive.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A smart rotary door lock for a universal steam oven, characterized in that, include: The main body (11), the screw coupling (2) installed on the top of the main body (11), the extension shaft (10) located on one side of the screw coupling (2) and used to control the opening and closing of the door by rotation, and the motor (1) installed at the bottom of the screw coupling (2) and used to drive the screw coupling (2) to run; The output end of the lead screw coupling (2) is fitted with a special-shaped lead screw nut (5) for converting rotary motion into linear motion. A spring pin (7) is fixedly installed on the outside of the special-shaped lead screw nut (5). The extension shaft (10) is located at one end of the spring pin (7). The main body (11) is provided with a rotary cam track for limiting the rotation angle of the extension shaft (10). The top of the main body (11) is provided with a release position switch (6) and a tension position switch (13) for controlling the start and stop position of the extension shaft (10).

2. The intelligent rotary door lock for a universal steam oven according to claim 1, characterized in that: The output end of the screw coupling (2) is provided with a wear-resistant bushing (3), and the outside of the wear-resistant bushing (3) is provided with a bushing seat (4) fixedly installed on the top of the main body (11).

3. The intelligent rotary door lock for a universal steam oven according to claim 1, characterized in that: A hook (9) is fixedly installed at the end of the protruding shaft (10).

4. The intelligent rotary door lock for a universal steam oven according to claim 2, characterized in that: The top of the bushing seat (4) is provided with a first adjustable sheet metal (8), and the release position switch (6) is fixedly installed on the top of the first adjustable sheet metal (8).

5. The intelligent rotary door lock for a universal steam oven according to claim 1, characterized in that: The main body (11) has a second adjustable sheet metal (12) on one side, and the tensioning switch (13) is fixedly installed on one side of the second adjustable sheet metal (12).

6. The intelligent rotary door lock for a universal steam oven according to claim 1, characterized in that: The bottom of the main body (11) is provided with a height adjustment mechanism, which includes a threaded rod (14) threaded in the main body (11) and a fixed plate (15) rotatably disposed at the bottom of the threaded rod (14) and abutting against one side of the main body (11).

7. The intelligent rotary door lock for a universal steam oven according to claim 6, characterized in that: The bottom of the threaded rod (14) is fixedly provided with a rotating plate (16), which is rotatably connected to the fixed plate (15).

8. The intelligent rotary door lock for a universal steam oven according to claim 7, characterized in that: The fixing plate (15) has several fixing holes (17) on its edge for bolts to pass through, and two sets of handles (18) are fixed on the outer wall of the top end of the threaded rod (14).

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