A transmission limiting structure applied to a smart cooking device

Abstract

A kind of transmission limiting structure applied to intelligent cooking equipment, including heating bin, drive motor and motor base, the drive motor is connected with heating bin by transmission assembly and is driven;The transmission assembly includes transmission belt, the transmission belt is equipped with accessory, the accessory is correspondingly matched with stroke detection device, the transmission limiting structure further includes first direction limiting structure, the first direction limiting structure is equipped with first limiting surface for limiting the maximum rotation amplitude of transmission belt along the first direction;The accessory is configured to when abutting on the first limiting surface during moving along the first direction, it cannot continue to move to stroke detection device;The detection end of the stroke detection device is configured to at least before the accessory and first limiting surface contact, the accessory can be detected.This utility model whole structure design is reasonable, through mechanical limiting and electrical signal detection double protection, avoid wire knot, pull off and weld, improve the stability and reliability of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of intelligent cooking equipment technology, and specifically to a transmission limiting structure applied to intelligent cooking equipment. Background Technology

[0002] In smart cooking devices, the heating chamber needs to rotate to ensure even heating of the food inside the container. Referring to patent application number 202420119014.4, to prevent excessive rotation of the heating chamber from pulling and detaching the wires connecting the heating device, a second sensing device is installed on a mounting bracket or other location, and an accessory is attached to the transmission belt. The accessory, in conjunction with the second sensing device, determines the rotation amplitude of the transmission belt, thereby improving the accuracy of the heating chamber's rotation control. However, the second sensing device has no limit on its position; when the transmission belt rotates beyond its travel in the first direction, it is prone to impacting the second sensing device body, causing damage and resulting in position recognition failure. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a transmission limiting structure for use in intelligent cooking equipment.

[0004] The technical solution adopted by this utility model to solve its technical problem is: A transmission limiting structure for use in intelligent cooking equipment includes a heating chamber, a drive motor, and a motor mount. The drive motor is mounted on the motor mount and is connected to the heating chamber via a transmission assembly. The transmission assembly includes a transmission belt with an accessory. The accessory is correspondingly fitted with a travel detection device for detecting and limiting the rotation amplitude of the transmission belt in a first direction. The structure is characterized by: The transmission limiting structure further includes a first direction limiting structure, wherein the first direction limiting structure is provided with a first limiting surface for limiting the maximum rotation amplitude of the transmission belt along the first direction; The attachment is configured such that it cannot continue to move toward the travel detection device when it comes into contact with the first limiting surface during movement in the first direction; The detection end of the travel detection device is configured to detect the accessory at least before the accessory comes into contact with the first limiting surface.

[0005] In this utility model, the transmission limiting structure further includes a second direction limiting structure, which has a second limiting surface for limiting the maximum rotation amplitude of the transmission belt along the second direction; the active stroke of the accessory is limited between the first limiting surface and the second limiting surface.

[0006] In this invention, the transmission assembly includes a transmission belt, a driving pulley, and a driven pulley. The driving pulley is mounted on the output shaft of the drive motor, and the driven pulley is mounted on the mounting shaft of the heating chamber. The transmission belt connects the driving pulley and the driven pulley.

[0007] In this invention, the first directional limiting structure and / or the second directional limiting structure are disposed on the motor base.

[0008] In this utility model, the first directional limiting structure includes a first limiting seat disposed on the motor base, and the first limiting surface is disposed on the first limiting seat.

[0009] In this invention, the stroke detection device is installed on the motor base or the first limiting seat of the first direction limiting structure.

[0010] In this utility model, the second directional limiting structure includes a second limiting seat disposed on the motor base, and the second limiting surface is disposed on the second limiting seat.

[0011] In this invention, the accessory includes a trigger block integrally formed with the transmission belt.

[0012] In this invention, a positioning turntable is installed on the driven pulley. The positioning turntable rotates synchronously and coaxially with the driven pulley. The positioning turntable is equipped with a positioning detection device to detect in real time whether the positioning turntable has been reset to its initial position.

[0013] In this utility model, the positioning detection device is a photoelectric switch, with its transmitting end and receiving end facing each other, and the edge of the positioning turntable is provided with a shielding part.

[0014] The beneficial effects of this utility model are as follows: The transmission limiting structure includes a first-direction limiting structure and a second-direction limiting structure. The first-direction limiting structure, by setting a first limiting surface as the final mechanical block, ensures that the accessory will not directly and violently impact the body of the stroke detection device, greatly reducing the probability of damage to the stroke detection device. Simultaneously, the second-direction limiting structure, by using a second limiting surface as a mechanical limiting reference in another direction, achieves bidirectional stroke limitation of the transmission belt, preventing over-travel of the transmission belt from causing component impact damage and improving equipment operational safety. Furthermore, the cooperation between the accessory and the stroke detection device, and the cooperation between the positioning turntable and the positioning detection device, combined with the bidirectional limiting components, enables position identification and verification during bidirectional rotation of the heating chamber, ensuring accurate position detection.

[0015] In summary, the overall structure of this utility model is reasonably designed. Through the dual protection of mechanical limit and electrical signal detection, it avoids wire tangling, pulling and detachment, and improves the stability and reliability of equipment operation. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 Three-dimensional transmission limiting structure Figure 1 ; Figure 2 This is a rear view of the transmission limiting structure; Figure 3 Three-dimensional transmission limiting structure Figure 2 ; Figure 4 An exploded view of the heating chamber and the mounting ring; Figure 5 A schematic diagram showing the transmission limiting structure installed on the housing of a smart cooking device; Figure 6 This is a schematic diagram of the transmission limiting structure installed on the heating mounting bracket. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0019] Furthermore, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection using welding, a detachable connection using bolts, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0021] Reference Figure 1-6 A transmission limiting structure for use in intelligent cooking equipment includes a heating chamber 1, a drive motor 2, and a motor base 3. The heating chamber 1 is equipped with a coil, which together form a heating device (the coil is not shown in the accompanying drawings). The drive motor 2 is mounted on the motor base 3. When the heating device is mounted on the housing of the intelligent cooking equipment, a heating mounting bracket 100 is provided inside the housing, and the motor base 3 is mounted on the heating mounting bracket 100. The drive motor 2 is connected to the heating chamber 1 via a transmission assembly. The transmission assembly includes a transmission belt 4, a drive pulley 5, and a driven pulley 6. The drive pulley 5 is mounted on the output shaft of the drive motor 2, and the driven pulley 6 is mounted on the mounting shaft of the heating chamber 1. The transmission belt 4 is a synchronous belt, connecting the drive pulley 5 and the driven pulley 6. The transmission belt 4 is equipped with an attachment 41, which is correspondingly fitted with a stroke detection device 7 for detecting and limiting the rotation amplitude of the transmission belt 4 in a first direction.

[0022] Furthermore, the transmission limiting structure also includes a first direction limiting structure and a second direction limiting structure, which are distributed on the outer periphery of the transmission belt 4.

[0023] Furthermore, the first directional limiting structure is provided with a first limiting surface 8a for limiting the maximum rotation amplitude of the transmission belt 4 along the first direction. The stroke detection device 7 is a micro switch, and the pressing end of the micro switch is offset from the first limiting surface 8a. The attachment 41 is configured to be unable to move further toward the stroke detection device 7 when it abuts against the first limiting surface 8a during movement along the first direction. The detection end of the stroke detection device 7 is configured to detect the attachment 41 at least before it contacts the first limiting surface 8a. When the transmission belt 4 rotates along the first direction, for example clockwise, the attachment 41 moves accordingly. Before it contacts the first limiting surface 8a, it will first enter the detection range of the stroke detection device 7 until the attachment 41 hits the pressing end of the stroke detection device 7, triggering the stroke detection device 7, which then immediately sends a signal to the control module of the device. The control module then cuts off the power to the drive motor 2, thereby limiting the transmission belt 4. When the abnormal control module fails to stop the drive motor 2 in time according to the signal from the stroke detection device 7, the accessory 41 is mechanically blocked by the first limiting surface 8a, thus preventing it from directly and violently impacting the body of the stroke detection device 7. In other words, the main function of the first directional limiting structure is to prevent the body of the stroke detection device 7 from being violently impacted while the pressing end of the stroke detection device 7 is normally cooperating with the accessory 41 for monitoring. Furthermore, when the accessory 41 collides with the first limiting surface 8a or the second limiting surface 9a, the transmission belt 4 cannot move. At this time, the load on the drive motor 2 increases, and the current rises. The control module judges the load change by correspondingly checking the current of the drive motor 2, thereby determining whether an impact has occurred and stopping the drive motor 2.

[0024] Furthermore, the second-direction limiting structure is provided with a second limiting surface 9a for limiting the maximum rotation amplitude of the transmission belt 4 in the second direction; the travel of the accessory 41 is limited between the first limiting surface 8a and the second limiting surface 9a. When the transmission belt 4 rotates beyond its travel in the second direction, for example counterclockwise, it will be blocked by the second limiting surface 9a. In this way, the first-direction limiting structure and the second-direction limiting structure jointly achieve bidirectional mechanical limiting, further improving safety and reducing the probability of wire pulling and detachment.

[0025] In this embodiment, the first directional limiting structure and the second directional limiting structure are disposed on the motor base 3. The first directional limiting structure includes a first limiting seat 8 disposed on the motor base 3, and a first limiting surface 8a disposed on the first limiting seat 8. The stroke detection device 7 is mounted on the first limiting seat 8, thereby facilitating position adjustment between the stroke detection device 7 and the first limiting surface 8a. Of course, in other embodiments, the stroke detection device 7 is mounted on the motor base 3, which also achieves the purpose of mounting the stroke detection device 7. Further, the second directional limiting structure includes a second limiting seat 9 disposed on the motor base 3, and a second limiting surface 9a disposed on the second limiting seat 9.

[0026] In this embodiment, the accessory 41 includes a trigger block integrally formed with the transmission belt 4, thereby improving the connection stability between them.

[0027] In this embodiment, the heating chamber 1 is composed of a first half-shell 11 and a second half-shell 12 joined together. The first half-shell 11 and the second half-shell 12 are connected by bolts. The inner cavity of the first half-shell 11 and the inner cavity of the second half-shell 12 form a heating chamber for placing a lunchbox. Further, a mounting ring 13 is fitted onto the heating chamber 1. The outer circumferential surface of the mounting ring 13 is a circular circumferential surface 131 for contacting the auxiliary roller 200. The inner ring of the mounting ring 13 has a turntable insertion hole 132 and a turntable through hole 133 coaxially arranged with the mounting ring 13. A circular stop surface is provided between the turntable insertion hole 132 and the turntable through hole 133. The front end of the first half-shell 11 is integrally formed with a first arcuate protrusion 111, and the front end of the second half-shell 12 is integrally formed with a second arcuate protrusion 121. The first arcuate protrusion 111 and the second half-shell 12 are connected by bolts. The two arc-shaped protrusions 121 combine to form a mating ring that fits into the turntable insertion hole 132. When the mating ring is inserted into the turntable insertion hole 132 and its front end abuts against the ring stop surface, the mating ring cannot continue to be inserted further into the turntable insertion hole 132. At this point, the outer wall of the mating ring contacts the hole wall of the turntable insertion hole 132, and the turntable through hole 133 is directly opposite the inner ring of the mating ring. Then, the first half-shell 11 and the second half-shell 12 are both fixedly connected to the mounting ring 13 by bolts, thereby achieving synchronous rotation of the heating chamber 1 and the mounting ring 13. Furthermore, by having the mounting ring 13 contact the auxiliary roller 200, frictional wear on the auxiliary roller 200 can be reduced, which not only improves the stability of the rotation of the heating chamber 1 but also effectively extends the service life of the auxiliary roller 200.

[0028] Furthermore, a first half-shaft 112 is integrally formed at one end of the first half-shell 11, and a second half-shaft 122 is integrally formed at one end of the second half-shell 12. The first half-shaft 112 and the second half-shaft 122 are joined to form a mounting shaft. A mounting bearing seat 14 for mounting on the heating mounting bracket 100 is fitted on the mounting shaft, thereby realizing the rotatable installation of the heating chamber 1. At the same time, the connection quality of the first half-shell 11 and the second half-shell 12 is more stable and reliable under the constraint of the mounting bearing seat 14 and the mounting ring 13, effectively avoiding loosening during operation. Furthermore, the housing is provided with a roller assembly corresponding to the mounting ring 13. The roller surface of the auxiliary roller 200 of the roller assembly rolls in contact with the outer peripheral surface of the mounting ring 13 and supports the mounting ring 13, thereby realizing the purpose of rotatably mounting the heating chamber 1 inside the housing.

[0029] In this embodiment, a positioning turntable 61 is installed on the driven pulley 6. The positioning turntable 61 rotates synchronously and coaxially with the driven pulley 6. The positioning turntable 61 is correspondingly equipped with a positioning detection device 10, which is installed on the heating mounting bracket 100. It is used to detect in real time whether the positioning turntable 61 has returned to the initial position. When the positioning turntable 61 rotates to the preset position, the positioning detection device 10 outputs a signal to the control module. The control module determines the current working status of the heating chamber and accurately controls the drive motor 2 to stop, ensuring that the stopping position of the heating chamber 1 is accurate and consistent after each rotation.

[0030] In this embodiment, the positioning detection device 10 is preferably a photoelectric switch, with its transmitting end and receiving end facing each other. The edge of the positioning turntable 61 is provided with a blocking part 611. When the blocking part 611 passes the photoelectric switch, a pulse signal is generated, so that the control module knows whether the heating chamber 1 has returned to the set position.

[0031] In this embodiment, the motor base 3 is provided with a tensioning elongated hole 31, through which a motor locking bolt threadedly connected to the heating mounting bracket 100 is inserted. A tension adjusting bolt 15, threadedly mounted on the heating mounting bracket 100, is used to push the motor base 3 to move along the direction of the tensioning elongated hole 31. By tightening or loosening the tension adjusting bolt 15, the position of the motor base 3 is adjusted, thereby changing the center distance between the driving pulley 5 and the driven pulley 6, thus adjusting the tension of the transmission belt 4 and ensuring transmission quality. Furthermore, since the first directional limiting structure and the second directional limiting structure are located on the motor base 3, during the adjustment of the motor base 3, the first directional limiting structure and the second directional limiting structure move synchronously, thereby ensuring the stability of the accessory 41 in conjunction with them.

[0032] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A transmission limiting structure for use in intelligent cooking equipment, comprising a heating chamber (1), a drive motor (2), and a motor base (3), wherein the drive motor (2) is mounted on the motor base (3), and the drive motor (2) is connected to the heating chamber (1) via a transmission assembly; the transmission assembly comprises a transmission belt (4), wherein an accessory (41) is provided on the transmission belt (4), and the accessory (41) is correspondingly fitted with a stroke detection device (7) for detecting and limiting the rotation amplitude of the transmission belt (4) in a first direction, characterized in that: The transmission limiting structure further includes a first direction limiting structure, on which a first limiting surface (8a) is provided for limiting the maximum rotation amplitude of the transmission belt (4) along the first direction. The attachment (41) is configured to prevent further movement toward the travel detection device (7) when it comes into contact with the first limiting surface (8a) during movement in the first direction; The detection end of the travel detection device (7) is configured to detect the attachment (41) at least before the attachment (41) comes into contact with the first limiting surface (8a).

2. The transmission limiting structure applied to an intelligent cooking device according to claim 1, characterized in that: The transmission limiting structure also includes a second direction limiting structure, on which a second limiting surface (9a) is provided for limiting the maximum rotation amplitude of the transmission belt (4) in the second direction; the active stroke of the accessory (41) is limited between the first limiting surface (8a) and the second limiting surface (9a).

3. The transmission limiting structure applied to an intelligent cooking device according to claim 1, characterized in that: The transmission assembly includes a transmission belt (4), a drive pulley (5) and a driven pulley (6). The drive pulley (5) is mounted on the output shaft of the drive motor (2), and the driven pulley (6) is mounted on the mounting shaft of the heating chamber (1). The transmission belt (4) connects the drive pulley (5) and the driven pulley (6).

4. The transmission limiting structure applied to an intelligent cooking device according to claim 1, characterized in that: The first directional limiting structure and / or the second directional limiting structure are disposed on the motor base (3).

5. The transmission limiting structure applied to an intelligent cooking device according to claim 4, characterized in that: The first directional limiting structure includes a first limiting seat (8) disposed on the motor base (3), and the first limiting surface (8a) is disposed on the first limiting seat (8).

6. The transmission limiting structure applied to an intelligent cooking device according to claim 1, characterized in that: The stroke detection device (7) is installed on the motor base (3) or the first limiting seat (8) of the first direction limiting structure.

7. The transmission limiting structure applied to an intelligent cooking device according to claim 2, characterized in that: The second directional limiting structure includes a second limiting seat (9) disposed on the motor base (3), and a second limiting surface (9a) disposed on the second limiting seat (9).

8. The transmission limiting structure applied to an intelligent cooking device according to claim 1, characterized in that: The accessory (41) includes a trigger block integrally formed with the transmission belt (4).

9. The transmission limiting structure applied to an intelligent cooking device according to claim 3, characterized in that: A positioning turntable (61) is installed on the driven pulley (6). The positioning turntable (61) rotates synchronously and coaxially with the driven pulley (6). The positioning turntable (61) is equipped with a positioning detection device (10) to detect in real time whether the positioning turntable (61) has been reset to the initial position.

10. The transmission limiting structure applied to an intelligent cooking device according to claim 9, characterized in that: The positioning detection device (10) is a photoelectric switch with its transmitting end and receiving end facing each other, and the edge of the positioning turntable (61) is provided with a shielding part (611).

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