Self-locking door closing safety mechanism of cooking equipment

Abstract

The utility model discloses a cooking equipment self-locking type door closing safety mechanism, and relates to the field of oven doors, the cooking equipment self-locking type door closing safety mechanism comprises a bottom plate, a rectangular plate is fixedly installed on one side of the bottom plate, a box body is fixedly installed at the bottom of the rectangular plate, and the rectangular plate is provided with a door closing safety mechanism used for automatically opening and closing an oven door. The door closing safety mechanism comprises a circular plate arranged on the rectangular plate. According to the baking oven, the gear motor conducts back transmission, the adapter plate and the adjustable connecting rod can be driven to move, the switching hinge is pulled through the spring steel ball pin, the baking oven door is driven to achieve the closing action, when the second proximity switch is triggered through the inductive sensor, the system closes the gear motor at the moment, and due to the structure of the gear motor and the angle of the adjustable connecting rod, the baking oven door can be closed. After the oven door is closed, the self-locking effect can be achieved, the door opening and closing functions of different oven doors and the adjusting function of different door closing sealing tensioning force are achieved, and therefore the flexibility and safety in the using process can be improved.

Description

A self-locking door safety mechanism for cooking equipment Technical Field

[0001] This application relates to the field of oven doors, and more particularly to a self-locking door safety mechanism for cooking equipment. Background Technology

[0002] With the continuous development of the catering industry and the advancement of intelligent technology, the requirements for automation of kitchen equipment are getting higher and higher. Many appliances with doors (steam ovens, freezers, warming cabinets, etc.) are beginning to need to have the function of automatic door opening and closing.

[0003] Most existing traditional ovens do not have an automatic door closing function, so when using an oven, the operator often needs to open and close the oven door, which is not very convenient and makes it difficult to control the force when closing the door and ensure safety. Therefore, the flexibility and safety of the oven door can be further improved. Summary of the Invention

[0004] To further improve the flexibility and safety of oven doors in existing ovens during use, this application provides a self-locking door safety mechanism for cooking equipment.

[0005] The technical solution of the self-locking door closing safety mechanism for cooking equipment provided in this application is as follows: A self-locking door closing safety mechanism for cooking equipment includes a base plate, a rectangular plate is fixedly installed on one side of the base plate, a box is fixedly installed on the bottom of the rectangular plate, and a door closing safety mechanism for automatic opening and closing of the oven door is provided on the rectangular plate.

[0006] The door closing safety mechanism includes a circular plate mounted on a rectangular plate, a long plate fixedly mounted on the circular plate, a sensor mounted on the long plate, a through hole at the bottom of the circular plate, a fixed post fixedly mounted in the through hole, an adapter plate fixedly fitted on the fixed post, an adjustable connecting rod rotatably mounted on one side of the adapter plate, a connecting seat on one side of the adjustable connecting rod, a conversion hinge for mounting with the oven door mounted on the connecting seat, a spring ball pin mounted on the conversion hinge, an mounting plate fixedly mounted on the base plate, a first proximity switch and a second proximity switch respectively mounted on the mounting plate and the base plate, and a drive mechanism for driving the adapter plate to rotate at the bottom of the fixed post.

[0007] By adopting the above technical solution, the oven door is moved by the adapter plate and adjustable connecting rod, and the spring steel ball pin pulls the conversion hinge to achieve the closing action.

[0008] Preferably, both the first proximity switch and the second proximity switch are inductively connected to the sensing sensor.

[0009] By adopting the above technical solution, since both the first proximity switch and the second proximity switch are inductively connected to the sensing sensor, the position of the sensing sensor can be sensed.

[0010] Preferably, the drive mechanism includes a first bevel gear and a second bevel gear rotatably mounted inside the housing, the first bevel gear and the second bevel gear meshing with each other, the second bevel gear being fixedly connected to one bottom end of a fixed column, and a reduction motor being provided on one side of the housing, the output end of the reduction motor being fixedly connected to the first bevel gear via a coupling.

[0011] By adopting the above technical solution, the geared motor drives the first bevel gear and the second bevel gear to rotate. The rotation of the second bevel gear will drive the adapter plate and the adjustable connecting rod to move, and the spring steel ball pin will pull the conversion hinge.

[0012] Preferably, a fixing frame is fixedly installed on one side of the box body, and the geared motor is fixedly installed on the fixing frame.

[0013] By adopting the above technical solution and setting up a fixing frame, the installation can be assisted.

[0014] Preferably, the rectangular plate has a circular hole, and the circular plate is rotatably installed in the circular hole.

[0015] By adopting the above technical solution, the circular holes can be used to assist in the installation process.

[0016] Preferably, one side of the first proximity switch and the second proximity switch is fixed with a corresponding mounting ear, and a fixing bolt is screwed onto each of the two mounting ears.

[0017] By adopting the above technical solution, the mounting ear can be installed and fixed by rotating the fixing bolt, thereby installing and fixing the corresponding first proximity switch and second proximity switch.

[0018] Preferably, two mounting holes are symmetrically provided on the base plate.

[0019] By adopting the above technical solution and setting mounting holes, an auxiliary installation function can be achieved.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application employs a geared motor and other components. The geared motor transmits power in reverse, which moves the adapter plate and adjustable connecting rod. The spring steel ball pin pulls the conversion hinge, causing the oven door to close. When the second proximity switch is triggered by the sensor, the system shuts off the geared motor. Due to the structure of the geared motor and the angle of the adjustable connecting rod, the oven door can achieve a self-locking effect after closing. This enables different oven door opening and closing functions and adjustments to the sealing tension of the closing door, thus improving the flexibility and safety during use.

[0022] 2. This application utilizes spring steel ball pins for positioning and fixing, enabling quick insertion and release. In the event of electrical control failure, the output shaft can be manually pulled to open and close the door. Furthermore, the device has a simple and compact structure, does not occupy space, and can achieve intelligent acceleration and deceleration opening and closing of doors, reducing unattended automation time. It can be used without seamless switching between manual and electrical control systems, making switching simple and convenient. The moving parts have no fasteners, eliminating the need for regular inspection and maintenance. The device can adaptively adjust the clamping degree and state according to the sealing thickness of different doors. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of a self-locking door closing safety mechanism for a cooking device according to an embodiment of this application;

[0024] Figure 2 is a schematic diagram illustrating the main structure of the door closing safety mechanism in the embodiment of this application;

[0025] Figure 3 is a partial unfolded schematic diagram of the main structure of the door closing safety mechanism in the embodiment of this application;

[0026] Figure 4 is a schematic diagram illustrating the main sensing structure in an embodiment of this application;

[0027] Reference numerals: 1. Base plate; 2. Gear motor; 3. Adapter plate; 4. Adjustable connecting rod; 5. Spring steel ball pin; 6. Converter hinge; 7. Connecting seat; 8. Mounting plate; 9. First proximity switch; 10. Second proximity switch; 11. Fixing bracket; 12. Mounting hole; 13. Mounting ear; 14. Fixing bolt; 15. Housing; 16. Rectangular plate; 17. Long plate; 18. Inductive sensor; 19. First bevel gear; 20. Second bevel gear; 21. Fixing column; 22. Round hole; 23. Round plate; 24. Through hole. Detailed Implementation

[0028] The present application will be further described in detail below with reference to Figures 1-4.

[0029] This application discloses a self-locking door safety mechanism for cooking equipment.

[0030] Referring to Figures 1-3, a self-locking door closing safety mechanism for a cooking appliance includes a base plate 1, a rectangular plate 16 fixedly installed on one side of the base plate 1, a box 15 fixedly installed at the bottom of the rectangular plate 16, a door closing safety mechanism for automatically opening and closing the oven door on the rectangular plate 16, and a mounting mechanism on the base plate 1.

[0031] The door closing safety mechanism includes a circular plate 23 mounted on a rectangular plate 16, an elongated plate 17 fixedly mounted on the circular plate 23, a sensor 18 mounted on the elongated plate 17, a through hole 24 at the bottom of the circular plate 23, a fixed post 21 fixedly mounted in the through hole 24, a transition plate 3 fixedly sleeved on the fixed post 21, and an adjustable connecting rod 4 rotatably mounted on one side of the transition plate 3, a connecting seat 7 on one side of the adjustable connecting rod 4, and a conversion hinge 6 for mounting with the oven door on the connecting seat 7, a spring steel ball pin 5 mounted on the conversion hinge 6, and a mounting plate 8 fixedly mounted on the base plate 1. The mounting plate 8 and the base plate 1 are respectively provided with a first proximity switch 9 and a second proximity switch 10, and both the first proximity switch 9 and the second proximity switch 10 are inductively connected to the sensor 18.

[0032] The door closing safety mechanism also includes a first bevel gear 19 and a second bevel gear 20, which are rotatably installed inside the box body 15 and mesh with each other. The second bevel gear 20 is fixedly connected to the bottom end of the fixed column 21. A fixed frame 11 is fixedly installed on one side of the box body 15. A reduction motor 2 is fixedly installed on the fixed frame 11 and its output end is fixedly connected to the first bevel gear 19 through a coupling. A circular hole 22 is opened on the rectangular plate 16, and a circular plate 23 is rotatably installed in the circular hole 22.

[0033] In use, the geared motor 2 drives the first bevel gear 19 and the second bevel gear 20 to rotate. The rotation of the second bevel gear 20 drives the adapter plate 3 and the adjustable connecting rod 4 to move. The spring steel ball pin 5 pulls the conversion hinge 6, which closes the oven door. When the second proximity switch 10 is triggered by the sensing sensor 18, the system shuts off the geared motor 2. By judging the force through feedback current, the system can achieve adaptive opening and closing of doors with different thicknesses and hardnesses. Due to the structure of the geared motor 2 and the angle of the adjustable connecting rod 4, the oven door can achieve a self-locking effect after closing. This system enables different oven door opening and closing functions, different closing sealing tension adjustment functions, and a manual operation scheme in case of automation failure. Therefore, it can improve the flexibility and safety of use.

[0034] Referring to Figures 2-4, the mounting mechanism includes mounting ears 13 respectively fixedly installed on one side of the first proximity switch 9 and the second proximity switch 10, fixing bolts 14 screwed onto the two mounting ears 13, and two mounting holes 12 symmetrically opened on the base plate 1.

[0035] In use, by rotating the fixing bolt 14, the mounting ear 13 can be installed and fixed, and the corresponding first proximity switch 9 and second proximity switch 10 can be installed and fixed. By judging the force condition through feedback current, the adaptive opening and closing action of the sealing door with different thickness and hardness can be realized. In addition, optional accessories such as spring buffer can be installed at the end of the adjustable link 4 to realize adaptive buffer adjustment for doors with different resistance elasticity. The machined parts do not require high-precision machining.

[0036] The shaft end is connected by a linkage structure consisting of an adapter plate 3 and an adjustable connecting rod 4. A conversion hinge 6 is installed on the door and positioned and fixed by a spring steel ball pin 5. This allows for quick insertion and removal of the door. In the event of electrical control failure, the output shaft can be manually pulled to open and close the door.

[0037] The implementation principle of the self-locking door safety mechanism of a cooking device in this application embodiment is as follows: When the system receives an open command, the geared motor 2 drives the first bevel gear 19 and the second bevel gear 20 to rotate through the forward transmission. The rotation of the second bevel gear 20 will drive the adapter plate 3 and the adjustable connecting rod 4 to move, and the spring steel ball pin 5 will pull the conversion hinge 6 to open the oven door. At the same time, the adapter plate 3 will also drive the circular plate 23 and the sensing sensor 18 to rotate. When the first proximity switch 9 is triggered, the system shuts off the geared motor 2.

[0038] When the system receives a closing command, it transmits the signal in reverse through the geared motor 2, which drives the first bevel gear 19 and the second bevel gear 20 to rotate. The rotation of the second bevel gear 20 drives the adapter plate 3 and the adjustable connecting rod 4 to move. The spring steel ball pin 5 pulls the conversion hinge 6, which drives the oven door to close. When the second proximity switch 10 is triggered by the sensing sensor 18, the system shuts off the geared motor 2. By judging the force through feedback current, the system can achieve adaptive opening and closing of doors with different thicknesses and hardnesses. Due to the structure of the geared motor 2 and the angle of the adjustable connecting rod 4, the oven door can achieve a self-locking effect after closing. This system realizes different oven door opening and closing functions, different closing sealing tension adjustment functions, and a manual operation scheme when the automation fails. Therefore, it can improve the flexibility and safety during use.

[0039] Positioning and fixing are achieved through spring steel ball pin 5, enabling quick insertion and release. In case of electrical control failure, the output shaft can be manually pulled to open and close the door. The equipment has a simple and compact structure, does not occupy space, and can realize intelligent acceleration and deceleration opening and closing of equipment with doors, reducing unattended automation time. It can be used by humans without connection to the electrical control system, and the switching is simple and convenient. There are no fasteners in the moving parts, so there is no need for regular inspection and maintenance. The equipment can adaptively adjust the tightness and state according to the sealing thickness of different doors.

[0040] 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 self-locking door closing safety mechanism for a cooking appliance, comprising a base plate (1), characterized in that: A rectangular plate (16) is fixedly installed on one side of the base plate (1), and a box body (15) is fixedly installed on the bottom of the rectangular plate (16). The rectangular plate (16) is provided with a door-closing safety mechanism for automatic opening and closing of the oven door. The door-closing safety mechanism includes a circular plate (23) set on the rectangular plate (16), an elongated plate (17) fixedly installed on the circular plate (23), a sensing sensor (18) provided on the elongated plate (17), and a through hole (24) opened at the bottom of the circular plate (23). A fixing post (21) is fixedly installed in the through hole (24). An adapter plate (3) is fixedly fitted on the upper part. An adjustable connecting rod (4) is rotatably installed on one side of the adapter plate (3). A connecting seat (7) is provided on one side of the adjustable connecting rod (4). A conversion hinge (6) for installation with the oven door is provided on the connecting seat (7). A spring steel ball pin (5) is provided on the conversion hinge (6). An mounting plate (8) is fixedly installed on the base plate (1). A first proximity switch (9) and a second proximity switch (10) are respectively provided on the mounting plate (8) and the base plate (1). A drive mechanism for driving the adapter plate (3) to rotate is provided at the bottom of the fixed column (21).

2. The self-locking door closing safety mechanism of a cooking device according to claim 1, characterized in that: The first proximity switch (9) and the second proximity switch (10) are both inductively connected to the sensing sensor (18).

3. The self-locking door closing safety mechanism for a cooking device according to claim 1, characterized in that: The drive mechanism includes a first bevel gear (19) and a second bevel gear (20) rotatably mounted in the housing (15). The first bevel gear (19) and the second bevel gear (20) mesh with each other. The second bevel gear (20) is fixedly connected to the bottom end of the fixed column (21). A reduction motor (2) is provided on one side of the housing (15). The output end of the reduction motor (2) is fixedly connected to the first bevel gear (19) through a coupling.

4. The self-locking door closing safety mechanism of a cooking device according to claim 3, characterized in that: A fixing frame (11) is fixedly installed on one side of the box (15), and the reduction motor (2) is fixedly installed on the fixing frame (11).

5. The self-locking door closing safety mechanism of a cooking device according to claim 1, characterized in that: The rectangular plate (16) has a circular hole (22), and the circular plate (23) is rotatably installed in the circular hole (22).

6. The self-locking door closing safety mechanism of a cooking device according to claim 1, characterized in that: One side of the first proximity switch (9) and the second proximity switch (10) is fixed with a corresponding mounting ear (13), and a fixing bolt (14) is screwed onto each of the two mounting ears (13).

7. The self-locking door closing safety mechanism of a cooking device according to claim 1, characterized in that: Two mounting holes (12) are symmetrically provided on the base plate (1).

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