Docking positioning device and oven

Abstract

The utility model relates to a kind of butt joint positioning device and the oven containing the butt joint positioning device, the butt joint positioning device includes substrate, gyro wheel mechanism, butt joint mechanism and limiting mechanism.Gyro wheel mechanism is symmetrically set along substrate both sides, for guiding grill steady in and out oven;Butt joint mechanism is set to substrate one end, for after grill enters with it realizes positioning butt joint;Limiting mechanism is set to substrate other end, for stopping limiting to grill, prevent it from backing off.The utility model can guide grill in and out oven by gyro wheel mechanism;By butt joint mechanism, it can be butt jointed and positioned after grill enters oven, limiting mechanism is prevented simultaneously to prevent grill from backing off.Compared with the mode that traditional manual frequently opens oven door and replaces PCB board carrying optical module, the utility model can replace the grill of PCB board carrying optical module as a whole, simplifies operation process, improves production efficiency and the automation level of baking process, simultaneously reduces heat loss, reduces energy consumption.

Description

Technical Field

[0001] This utility model relates to baking equipment, and in particular to a docking positioning device and an oven including the docking positioning device. Background Technology

[0002] Optical modules are key components in communication systems, used to convert photoelectric signals to each other. During the manufacturing process, optical modules typically undergo heat treatment processes such as baking, drying, curing, and aging to ensure that the internal components and optical colloids are fully cured, while removing moisture to guarantee stable performance and long-term reliability.

[0003] In existing technologies, to improve the baking efficiency of optical module products, multiple racks are installed inside the oven. Since these racks require power during baking, they are typically installed directly inside the oven. When baking is needed, the oven door must be manually opened to remove the PCB board of the already baked optical module from the rack and replace it with a new one. During this PCB board replacement process, the oven must be paused, leading to heat loss, increased energy consumption, and reduced oven efficiency. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problem in the prior art that heat loss, increased energy consumption and reduced efficiency are caused by the need for frequent manual opening and closing of the oven door when replacing the optical module carrier board.

[0005] To solve the above-mentioned technical problems, this utility model provides a docking and positioning device, comprising: substrate; A roller mechanism is mirror-arranged on both sides of the substrate along a first direction for guiding the oven rack loaded with materials in a second direction, wherein the first direction and the second direction are perpendicular to each other. A docking mechanism, located at one end of the substrate along the second direction, is used to dock with the grill; and, A limiting mechanism is provided at the other end of the substrate along the second direction, for limiting the grill that docks with the docking mechanism in the second direction.

[0006] In one embodiment of the present invention, the roller mechanism includes a roller bracket disposed on a substrate along the second direction, and a plurality of rollers rotatably mounted on the roller bracket, wherein the plurality of rollers are arranged along the second direction.

[0007] In one embodiment of this utility model, the roller mechanism further includes a guide side plate and a pressure plate. The guide side plate is disposed on the roller bracket, and the pressure plate is vertically connected to the guide side plate and arranged horizontally. The guide side plate is used to guide the grill in the second direction, and the pressure plate is used to limit the base of the grill in the third direction to prevent it from tipping over. The third direction is perpendicular to the first direction and the second direction, respectively.

[0008] In one embodiment of the present invention, the docking mechanism includes a docking side plate and a docking pin. The docking side plate is disposed at one end of the substrate along the second direction, and the docking pin is disposed on the docking side plate.

[0009] In one embodiment of the present invention, the docking mechanism further includes a socket, which is fixed to the side of the docking side plate facing the limiting mechanism, and the socket is used to make a conductive connection with the electrical connector on the grill.

[0010] In one embodiment of the present invention, the docking mechanism further includes a docking bracket, a guide pin, and an elastic element, wherein the guide pin is horizontally disposed on the substrate via the docking bracket; A first guide sleeve is provided on the docking side plate, and the guide pin passes through the first guide sleeve; The elastic element is sleeved on the guide pin and abuts against the docking side plate and the docking bracket respectively.

[0011] In one embodiment of this utility model, the limiting mechanism includes: Base plate; Two blocking components are respectively rotatably mounted on both sides of the base plate; A drive component for moving along the second direction under the action of an external force; A connecting assembly connects the drive assembly and the two blocking members, the connecting assembly being configured to drive the two blocking members to rotate synchronously when the drive assembly moves, thereby causing the blocking members to rotate from a limiting position to a yielding position; and The reset component is used to move the drive component in the return direction and rotate the two blocking components back to the limit position after the drive component loses external force.

[0012] In one embodiment of the present invention, the driving assembly includes a push rod and a docking push block, wherein the push rod extends along the second direction; The connecting assembly includes a first link and two second links; One side of the docking push block is used to receive external force and move along the second direction, and the other side is attached to the first connecting rod and fixedly connected to the push rod by a threaded connector passing through the docking push block and the first connecting rod. The two second links are respectively hinged to both ends of the first link, and respectively hinged to their respective blocking members.

[0013] In one embodiment of this utility model, a second guide sleeve is further included. The second guide sleeve is installed on the base plate, and the push rod can slide within the second guide sleeve under the action of external force. The reset member is sleeved on the push rod and abuts against the second guide sleeve and the first connecting rod respectively, and is used to provide a rebound force after the external force is released.

[0014] In one embodiment of this utility model, the blocking member has an L-shaped structure, having a blocking section for limiting movement and a rotating section perpendicularly connected to the blocking section; wherein, the end of the rotating section away from the blocking section is hinged to the base plate via a first rotating shaft, and the end of the rotating section near the blocking section is hinged to the second connecting rod via a second rotating shaft; the blocking section is used to contact the grill when it rotates to the limiting position to restrict the movement of the grill, and to release the grill blocking when it rotates to the yielding position.

[0015] This utility model also discloses an oven, including an oven body and the aforementioned docking and positioning device, wherein the docking and positioning device is disposed inside the oven body and is used to dock and position a baking rack loaded with materials.

[0016] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects: This invention uses a roller mechanism to guide the baking rack smoothly into and out of the oven in a second direction, so that the baking rack can be smoothly removed from the oven as a whole after baking. The docking mechanism can dock and limit the baking rack after it enters the oven, and at the same time, the limiting mechanism stops the baking rack to prevent it from moving backward, ensuring that the baking rack can be stably kept in the set position in the oven for baking.

[0017] Compared to the traditional method of frequently opening the oven door to replace the PCB board carrying the light module, this utility model allows for the complete replacement of the PCB board carrying the light module, simplifying the operation process, improving production efficiency and the level of automation in the baking process, while reducing heat loss and lowering energy consumption. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1This is a schematic diagram of the docking positioning device in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the oven in a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the limiting mechanism in a preferred embodiment of the present invention; Figure 4 This is a front view of the limiting mechanism in a preferred embodiment of the present invention; Figure 5 for Figure 4 A cross-sectional view along the AA direction; Figure 6 This is a side view of the limiting mechanism in a preferred embodiment of the present invention (the blocking member is located in the limiting position). Figure 7 This is a side view of the limiting mechanism in a preferred embodiment of the present invention (the blocking member is located in the yielding position).

[0019] Explanation of reference numerals in the accompanying drawings: 10. Oven; 11. Oven body; 111. Opening; 112. Baking space; 12. Door; 20. Base plate; 30. Roller mechanism; 31. Roller bracket; 32. Roller; 33. Guide side plate; 34. Pressure plate; 40. Connecting mechanism; 41. Connecting side plate; 42. Connecting pin; 43. Socket; 44. Connecting bracket; 45. First guide sleeve; 46. Elastic element; 50. Limiting mechanism; 5 1. Base plate; 511. Side support part; 512. Side extension part; 52. Blocking member; 521. Blocking section; 522. Rotating section; 53. Drive assembly; 531. Push rod; 5311. Anti-detachment boss; 532. Connecting push block; 54. Connecting assembly; 541. First connecting rod; 542. Second connecting rod; 55. Reset part; 56. Second guide sleeve; 57. First rotating shaft; 58. Second rotating shaft; 59. Threaded connector. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0021] See Figures 1 to 2 As shown, this utility model embodiment provides a docking positioning device and an oven 10 including the docking positioning device. The docking positioning device is disposed in the oven 10 and is used to dock and position a baking rack loaded with materials.

[0022] The oven 10 includes an oven body 11 and a door 12. The oven body 11 has an opening 111 on one side, which extends inward to form a baking space 112. The door 12 is hinged to the opening of the oven body 11. When the door 12 is opened, the baking rack loaded with materials (a rack carrying the PCB board of the optical module) enters the baking space 112 through the opening 111 and is docked and positioned by a docking and positioning device.

[0023] The docking and positioning device includes a base plate 20, a roller mechanism 30, a docking mechanism 40, and a limiting mechanism 50.

[0024] Specifically, the base plate 20 is mounted on the bottom plate of the baking space 112. Roller mechanisms 30 are mirror-image positioned on both sides of the base plate 20 along a first direction. The roller mechanisms 30 guide the rack loaded with material in a second direction. The first and second directions are perpendicular to each other. The first direction is the transverse direction of the baking space 112, and the second direction is the longitudinal direction of the baking space 112. A docking mechanism 40 is located at one end of the base plate 20 along the second direction for precise docking and positioning with the rack. A limiting mechanism 50 is located at the other end of the base plate 20 along the second direction, i.e., the limiting mechanism 50 is located opposite the docking mechanism 40. When the rack moves along the second direction and docks with the docking mechanism 40, the limiting mechanism 50 contacts the end of the rack away from the docking mechanism 40 (the tail of the rack), thereby physically restricting the movement of the rack and preventing it from retracting along the second direction.

[0025] This invention uses a roller mechanism 30 to guide the baking rack smoothly into and out of the oven 10 in the second direction, so that the baking rack can be smoothly removed from the oven 10 after baking. The docking mechanism 40 can dock and limit the baking rack after it enters the oven 10, and the limiting mechanism 50 can stop the baking rack to prevent it from moving backward, ensuring that the baking rack can be stably kept in the set position in the oven 10 for baking.

[0026] Compared to the traditional method of frequently opening the oven door to replace the PCB board carrying the light module, this utility model allows for the complete replacement of the PCB board carrying the light module, simplifying the operation process, improving production efficiency and the level of automation in the baking process, while reducing heat loss and lowering energy consumption.

[0027] See Figure 1As shown, the roller mechanism 30 includes a roller bracket 31 disposed on the base plate 20 along a second direction, and a plurality of rollers 32 rotatably mounted on the roller bracket 31. The roller bracket 31 may be a long strip-shaped metal structure, which is fixedly mounted on the base plate 20. The plurality of rollers 32 are arranged at intervals along the second direction, and are respectively mounted on the roller bracket 31 by a rotating shaft or bearing assembly, and can rotate freely around the rotating shaft or bearing assembly. The axis of each roller 32 extends along a first direction. When the grill enters or exits the oven 10, the bottom of the grill contacts the rollers 32, and the rolling of the rollers 32 achieves low-resistance guidance, thereby improving the smoothness of the grill transfer process and reducing the risk of jamming and tilting.

[0028] Furthermore, the roller mechanism 30 also includes a guide side plate 33 and a pressure plate 34. The guide side plate 33 is disposed on the roller bracket 31 and is used to constrain and guide the side of the grill as it moves along the second direction, preventing the grill from shifting laterally. The pressure plate 34 is horizontally disposed and vertically connected to the guide side plate 33. It is positioned above the grill base and forms a third-direction limit on the grill base, preventing it from tilting, leaning, or wobbling during operation. The third direction is a vertical direction, perpendicular to both the first and second directions. Through the structural cooperation of the guide side plate 33 and the pressure plate 34, the accuracy and safety of the grill's entry and exit process can be further improved. In this embodiment, the third direction can be understood as the height direction.

[0029] See Figure 1 As shown, the docking mechanism 40 includes a docking side plate 41 and a docking pin 42. The docking side plate 41 is located at one end of the base plate 20 along the second direction. The docking pin 42 is located on the docking side plate 41 and protrudes towards the limiting mechanism 50, for insertion and engagement with the insertion hole on the grill, thereby achieving positioning and fixation through insertion after the grill is moved into the oven 10.

[0030] To automate the power supply connection to the grill, at least one socket 43 is provided at an appropriate position on the docking side plate 41 facing the limiting mechanism 50. Preferably, two sockets 43 can be provided. The two sockets 43 are respectively fixedly installed to the docking side plate 41 by screws or welding. The socket 43 is used to establish a conductive connection with the electrical connector provided on the grill after the grill enters the oven 10. By connecting the socket 43 to the electrical connector on the grill, the grill can be electrically connected immediately after the position is completed, simplifying the operation process.

[0031] Furthermore, the docking mechanism 40 also includes a docking bracket 44, a guide pin (not shown in the figure), and an elastic element 46. The elastic element 46 can be a compression spring. The guide pin is mounted on the base plate 20 via the docking bracket 44 and is arranged horizontally. A first guide sleeve 45 is provided on the docking side plate 41, through which the guide pin passes, allowing the docking side plate 41 to be displaced along the axial direction of the guide pin during insertion. The elastic element 46 is sleeved on the guide pin. The two ends of the elastic element 46 abut against the docking side plate 41 and the docking bracket 44 respectively, thereby providing cushioning and automatic reset capability during grill insertion.

[0032] During the docking process, the grill rack moves into the oven 10 along the transmission path set by the roller mechanism 30 and eventually approaches the docking mechanism 40. When the socket on the grill rack is inserted into the docking pin 42 and electrically connected to the socket 43, a slight positional deviation or insertion force during the docking process may cause an impact. At this time, the elastic element 46 acts as a buffer under compression, allowing the docking side plate 41 to slightly retract, alleviating the mechanical impact during the insertion process, and preventing damage to the docking pin 42 or the socket on the grill rack. After the grill rack is inserted into place, the external force is eliminated, and the elastic element 46 automatically returns to its original deformed state, thereby pushing the docking side plate 41 to reset.

[0033] See Figures 3 to 7 As shown, the limiting mechanism 50 is mainly used for limiting the grill that has been docked in the second direction. The limiting mechanism 50 includes a base plate 51, two blocking members 52, a drive assembly 53, a connecting assembly 54, and a reset member 55.

[0034] The base plate 51 is located at the bottom of the baking space 112 of the oven body 11. Two blocking members 52 are rotatably mounted on both sides of the base plate 51 via a first rotating shaft 57. Specifically, both sides of the base plate 51 are bent inward to form side support portions 511. The side support portions 511 extend away from the docking mechanism 40 to form side extension portions 512. The side support portions 511 and the side extension portions 512 can be plate-like structures. The width of the side extension portion 512 in the third direction is narrower than the width of the side support portion 511 in the third direction. The blocking members 52 are rotatably mounted on the side extension portions 512 via the first rotating shaft 57. The two blocking members 52 can rotate between a limiting position and a yielding position. The side extension portions 512 facilitate the installation of the blocking members 52 and prevent the connecting assembly 54 from interfering with the side support portions 511 during rotation.

[0035] The drive assembly 53 is configured to move in a second direction under the action of an external force. The connecting assembly 54 connects the drive assembly 53 to the two blocking members 52, and is used to transmit the driving force of the drive assembly 53 to the blocking members 52, so that the two blocking members 52 move synchronously, ensuring that the stopping actions on both sides are consistent. This allows the blocking members 52 to rotate from the limiting position to the yielding position, so that the grill can enter the oven or be removed from the oven. It should be noted that the top height of the blocking member 52 in the limiting position and the yielding position has a height difference, that is, the top height of the blocking member 52 in the limiting position is greater than the top height of the blocking member 52 in the yielding position, so that the blocking member can block the grill when it is in a higher position, and can release the obstruction to allow the grill to pass when it is in a lower position.

[0036] The reset component 55 is used to provide a rebound force after the external force is removed, so that the drive component 53 automatically resets in the opposite direction, and drives the two blocking components 52 to rotate from the yield position to the limit position through the connecting component 54, thereby completing the restoration of the limit function.

[0037] The limiting mechanism 50 works as follows: When the grill needs to be moved into or out of the oven 10, an external force is applied to the drive assembly 53. Under the action of the force, the drive assembly 53 moves, driving the connecting assembly 54 to move, thereby causing the two blocking members 52 to rotate synchronously to the clearance position, providing space for the grill to pass. After the grill is transferred, the external force is removed, and the reset member 55 releases its elastic force, causing the drive assembly 53 to reset, while simultaneously causing the two blocking members 52 to rotate back to the limiting position, effectively stopping the grill.

[0038] Furthermore, the connecting assembly 54 includes a first connecting rod 541 and two second connecting rods 542. The first connecting rod 541 extends along a first direction and serves as an intermediate drive beam, laterally connecting the two blocking members 52. The two second connecting rods 542 are respectively hinged to both ends of the first connecting rod 541, and the other end of each second connecting rod 542 is hinged to the corresponding blocking member 52 via a second rotation shaft 58.

[0039] The drive assembly 53 includes a push rod 531 and a mating push block 532. The push rod 531 extends along a second direction. The two ends of the mating push block 532 are located between two blocking members 52. One side of the mating push block 532 is configured to receive external driving force, and the other side of the mating push block 532 abuts against the first connecting rod 541. The push rod 531 is arranged along the second direction and is located on the side of the first connecting rod 541 away from the mating push block 532. The mating push block 532 is fixedly connected to the push rod 531 by a threaded connector 59 passing through itself and the first connecting rod 541, thereby realizing the transmission of thrust.

[0040] In actual operation, when the docking push block 532 is driven forward by an external force, the docking push block 532 transmits the driving force to the first connecting rod 541, causing the first connecting rod 541 to translate in a preset direction (second direction). Since the two ends of the first connecting rod 541 are connected to the two blocking members 52 through the second connecting rod 542 respectively, the movement of the first connecting rod 541 will synchronously drive the two second connecting rods 542 to rotate, thereby causing the two blocking members 52 to rotate around their respective rotation axes (first rotation axis 57), realizing the transformation from the limiting position to the yielding position, thus facilitating the passage of the grill.

[0041] To ensure that the push rod 531 can move smoothly along a preset path (second direction) under external force and automatically reset after the external force is released, the limiting mechanism 50 further includes a second guide sleeve 56. The second guide sleeve 56 is preferably a linear bearing. The second guide sleeve 56 is mounted on the base plate 51 and provides guiding support for the push rod 531. The push rod 531 can slide within the second guide sleeve 56 along the second direction under external force, thereby preventing it from deflecting or wobbling during movement and improving the stability of the drive assembly 53. Specifically, to prevent the push rod 531 from dislodging from the second guide sleeve 56, an anti-dislodgement boss 5311 is provided at the end of the push rod 531 away from the mating push block 532. The diameter of the anti-dislodgement boss 5311 is larger than the diameter of the push rod 531 and the inner diameter of the second guide sleeve 56, thereby preventing the push rod 531 from dislodging from the second guide sleeve 56.

[0042] A reset element 55 is sleeved on the push rod 531, with one end abutting against the second guide sleeve 56 and the other end abutting against the first connecting rod 541. The reset element 55 is preferably a spring, specifically a compression spring in an initial pre-compressed state. When the push rod 531 is pushed forward by an external force, the reset element 55 is compressed and stores energy; when the external force is released, the reset element 55 releases its elastic energy, pushing the push rod 531 back in the opposite direction, simultaneously resetting the first connecting rod 541, thereby causing the two linked blocking components 52 to rotate synchronously and return to their limit positions.

[0043] See Figures 6 to 7 As shown, the blocking member 52 is preferably an L-shaped blocking and limiting block. This blocking and limiting block consists of a blocking section 521 and a rotating section 522, which are connected perpendicularly to each other. The end of the rotating section 522 furthest from the blocking section 521 is hinged to the base plate 51 via a first rotating shaft 57 to enable its rotational movement; simultaneously, the end of the rotating section 522 closest to the blocking section 521 is also hinged to the second connecting rod 542 via a second rotating shaft 58 to receive the motion transmission from the drive assembly 53. The blocking section 521, as a limiting actuator, rotates with the rotating section 522, thereby being positioned in a limiting position or a yielding position.

[0044] When the grill needs to be moved into or out of the oven 10, an external lateral pushing force is applied to the mating push block 532. This force is transmitted to the push rod 531 via the mating push block, and further pushes the second link 542 to move through the translation of the first link 541. This, in turn, pulls the rotating sections 522 of the two connected blocking and limiting blocks to rotate synchronously, causing the two blocking and limiting blocks to rotate around their first rotation axis 57, so that the blocking section 521 rotates from the limiting position to the yielding position (e.g., Figure 7 As shown), the feeding channel is opened, allowing the grill to be smoothly moved into the oven 10 and docked, or removed from the oven 10.

[0045] After the grill rack is moved into place or removed from the oven 10, the external force applied to the mating push block 532 is released, the reset component 55 releases the stored elastic force, and pushes the push rod 531 and the connecting assembly 54 to reset in the return direction. The two blocking limit blocks also rotate synchronously back to their initial limit positions (e.g., Figure 6 As shown, this allows for the limiting of the moved-in grill rack, preventing it from shifting backward and ensuring the stability and safety of the docking position, or restoring it to its initial state to await the movement of the next grill rack.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A docking and positioning device, characterized in that, include: substrate; A roller mechanism is mirror-displayed on both sides of the substrate along a first direction, and is used to guide the oven rack loaded with materials in a second direction, wherein the first direction and the second direction are perpendicular to each other. A docking mechanism is provided at one end of the substrate along the second direction for docking with the grill. as well as, A limiting mechanism is provided at the other end of the substrate along the second direction, for limiting the grill that docks with the docking mechanism in the second direction.

2. The docking positioning device according to claim 1, characterized in that: The roller mechanism includes a roller bracket disposed on a substrate along the second direction, and a plurality of rollers rotatably mounted on the roller bracket, the plurality of rollers being arranged along the second direction.

3. The docking positioning device according to claim 2, characterized in that: The roller mechanism further includes a guide side plate and a pressure plate. The guide side plate is disposed on the roller bracket, and the pressure plate is vertically connected to the guide side plate and arranged horizontally. The guide side plate is used to guide the grill in the second direction, and the pressure plate is used to limit the base of the grill in the third direction to prevent it from tipping over. The third direction is perpendicular to the first direction and the second direction, respectively.

4. The docking and positioning device according to claim 1, characterized in that: The docking mechanism includes a docking side plate and a docking pin. The docking side plate is located at one end of the base plate along the second direction, and the docking pin is located on the docking side plate.

5. The docking positioning device according to claim 4, characterized in that: The docking mechanism also includes a socket, which is fixed to the docking side plate on the side facing the limiting mechanism. The socket is used to establish a conductive connection with the electrical connector on the grill.

6. The docking positioning device according to claim 4, characterized in that: The docking mechanism further includes a docking bracket, a guide pin, and an elastic element, wherein the guide pin is horizontally mounted on the substrate via the docking bracket. A first guide sleeve is provided on the docking side plate, and the guide pin passes through the first guide sleeve; The elastic element is sleeved on the guide pin and abuts against the docking side plate and the docking bracket respectively.

7. The docking and positioning device according to claim 1, characterized in that: The limiting mechanism includes: Base plate; Two blocking components are respectively rotatably mounted on both sides of the base plate along the first direction; A drive component for moving along the second direction under the action of an external force; A connecting assembly connects the drive assembly and the two blocking members, the connecting assembly being configured to drive the two blocking members to rotate synchronously when the drive assembly moves, thereby causing the blocking members to rotate from a limiting position to a yielding position; and The reset component is used to move the drive component in the return direction and rotate the two blocking components back to the limit position after the drive component loses external force.

8. The docking positioning device according to claim 7, characterized in that: The drive assembly includes a push rod and a docking push block, the push rod extending along the second direction; The connecting assembly includes a first link and two second links; One side of the docking push block is used to receive external force and move along the second direction, and the other side is attached to the first connecting rod and fixedly connected to the push rod by a threaded connector passing through the docking push block and the first connecting rod. The two second links are respectively hinged to both ends of the first link, and respectively hinged to their respective blocking members.

9. The docking positioning device according to claim 8, characterized in that: It also includes a second guide sleeve, which is mounted on the base plate, and the push rod can slide within the second guide sleeve under the action of an external force; the reset member is sleeved on the push rod and abuts against the second guide sleeve and the first connecting rod respectively, for providing a rebound force after the external force is released; and / or, The blocking member has an L-shaped structure, with a blocking section for limiting movement and a rotating section perpendicularly connected to the blocking section; wherein, the end of the rotating section away from the blocking section is hinged to the base plate via a first rotating shaft, and the end of the rotating section near the blocking section is hinged to the second connecting rod via a second rotating shaft; the blocking section is used to contact the grill when it rotates to the limiting position to restrict the movement of the grill, and to release the grill blocking when it rotates to the yielding position.

10. An oven, characterized in that: The oven includes an oven housing and a docking and positioning device as described in any one of claims 1 to 9, wherein the docking and positioning device is disposed inside the oven housing for docking and positioning a baking rack loaded with materials.

Images