Display panel turnover mechanism and oven

Abstract

The invention discloses a display panel turnover mechanism and an oven. Comprising a lining plate, a longitudinal driving assembly, a panel support arranged at the front end of the lining plate in a turnover mode, a door shaft assembly with the two ends fixed to the lining plate and the panel support respectively, a first elastic piece arranged at the position of a hinge shaft of the door shaft assembly, and a push rod which does longitudinal reciprocating motion at the front end of the lining plate and is in transmission connection with the longitudinal driving assembly. The vertical limiting piece is used for limiting the vertical displacement of the push rod; the push rod comprises a first abutting part and a second abutting part which are arranged at the end of the push rod. The first abutting part abuts against the first area of the panel support, and the first abutting part is arranged on the side close to the free end of the panel support; the second abutting portion is slidably disposed on an inner side surface of the panel bracket. Most structures of the door shaft hinge structure and the push rod structure are arranged in related structures of the display panel, exposure of linkage structural parts is avoided, and the situation that a user is accidentally injured or articles are accidentally clamped is avoided.

Description

[Technical field]

[0001] The present invention relates to the technical field of household appliances, and in particular to a display panel flipping mechanism and an oven. [Background technology]

[0002] At present, the control panels of many household appliances can be flipped up when opened, and some control panels can be easily operated by users after being flipped up. The driving motor of the extension and reset mechanism of the existing household appliance control panel is installed on the push rod. When the driving motor is working, through the cooperation of the meshing teeth on the fixed bracket and the transmission gear on the push rod, the push rod can move along the fixed bracket and then drive the control panel assembly to extend and reset. After the meshing teeth of the fixed bracket are designed into a horizontal straight segment and an arc segment structure, the control panel assembly can form a backward flipping angle after extending forward to the extreme position, which is convenient for users to watch the display status of the control panel or adjust the flipping angle to facilitate users to grab the water tank. However, due to the excessive complexity of the existing hinge structure and transmission structure, the hinge structure and transmission structure are exposed to the outside, affecting the user's visual experience. At the same time, there is also a situation where the hinge structure and transmission structure accidentally injure the user or accidentally clamp objects during the opening and closing process. [Summary of the invention]

[0003] The present invention is proposed to solve at least one of the above problems, and its purpose is to provide a display panel flipping mechanism.

[0004] The technical solution of the present invention is: a display panel flipping mechanism, including a lining plate, a longitudinal driving assembly arranged on the lining plate, a panel bracket flipably arranged at the front end of the lining plate, a panel frame arranged opposite to the panel bracket and arranged at the front end of the lining plate, a door shaft assembly with two ends respectively fixed on the lining plate and the panel bracket, a first elastic member arranged at the hinge axis of the door shaft assembly, a push rod that performs longitudinal reciprocating motion at the front end of the lining plate and the push rod is transmission-connected with the longitudinal driving assembly, an interior panel covering the panel bracket, and a vertical limiter for guiding the movement direction of the push rod; the interior panel and the panel frame jointly cover the door Axle assembly and a push rod; a vertical limit piece is arranged on the panel bracket and / or on the door shaft assembly and / or on the longitudinal drive assembly; the push rod includes a first abutment portion arranged at the end of the push rod and a second abutment portion connected to the first abutment portion at one end; the first abutment portion can slide on a first area on the inner surface of the panel bracket, and the first area is arranged on a side close to the free end of the panel bracket; the second abutment portion slides on the second area of ​​the panel bracket; when the panel bracket is in a closed state, the rotation axis of the hinge shaft of the door shaft assembly is projected below the first area on the inner surface of the panel bracket.

[0005] Preferably, the vertical limiting member includes a first limiting member, which is a strip-shaped avoidance hole; the strip-shaped avoidance hole is arranged in the middle of the push rod; and the hinge shaft passes through the strip-shaped avoidance hole.

[0006] Further preferably, the vertical limiting member comprises a second limiting member, the second limiting member is arranged stationary relative to the panel bracket, and the second limiting member is at least in contact with the front end of the push rod.

[0007] Further preferably, the push rod also includes a buckling portion arranged at the front end of the push rod and protruding outward of the push rod, the buckling portion can abut against the second limit member, and the buckling portion is used to buckle the panel bracket on the panel frame when the panel bracket is close to a closed state.

[0008] Preferably, the door hinge assembly also includes a first hinge seat fixed on the panel bracket and a second hinge seat fixed on the lining plate; the first hinge seat is hinged to the second hinge seat through a hinge shaft; the hinge shaft passes through the middle of the first elastic member; one end of the first elastic member abuts against the panel bracket and / or the first hinge seat, and the other end of the first elastic member abuts against the lining plate and / or the second hinge seat.

[0009] Preferably, the push rod is arranged between the two door shaft assemblies; the second limit member abuts against the lower surface of the push rod to limit the vertical displacement of the push rod.

[0010] Preferably, a trim panel avoidance groove is also included, and the trim panel avoidance groove is arranged on the interior trim panel near the hinge shaft and the push rod.

[0011] Another technical solution of the present invention: an oven, comprising a display panel flipping mechanism and a water tank detachably arranged on a lining plate; when the panel bracket is in a fully opened state, the plane where the panel bracket is located is parallel to the plane where the lining plate is located; the water tank is above the plane where the panel bracket is located; or, the lower surface of the water tank is in the plane where the panel bracket is located; the panel bracket flips downward relative to the water tank.

[0012] Preferably, the lining plate is below the panel bracket; the push rod is a "Z"-shaped structure, and the push rod includes a horizontal cross bar, a horizontal connecting seat transmission-connected to the longitudinal drive assembly, and a vertical connecting rod with both ends respectively fixedly connected to the horizontal cross bar and the horizontal connecting seat.

[0013] The beneficial effects of the present invention compared with the background technology are as follows: the present invention relates to a display panel flipping mechanism and an oven, which adopts a strip push rod structure to avoid the appearance of an exposed multi-link hinge structure at the flipping position of the panel and the main body, and at the same time, the door axis hinge structure is also hidden on the panel and the main body, so that the exposed structure is only the rotating shaft part of the door axis hinge, and the structure of this part is not easy to injure people or accidentally clamp objects. Therefore, the technical solution avoids the exposure of the linkage structure by hiding most of the structure of the door axis hinge and the push rod inside the relevant structure of the display panel, thereby avoiding the occurrence of accidental injury to users or accidental clamping of objects. At the same time, the solution also shortens the production process, reduces unnecessary production processes, and improves the efficiency of production and assembly. The structure has the advantages of simple structure, compact coordination, and reasonable design.

Brief Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of the display panel flipping mechanism of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the display panel flipping mechanism of the present invention in a closed state;

[0016] Figure 3 It is a schematic diagram of the structure of the display panel flipping mechanism of the present invention in an open state;

[0017] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0018] Figure 5 for Figure 3 An exploded schematic diagram of a display panel flipping mechanism is shown;

[0019] Figure 6 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0020] Figure 7 for Figure 5 The enlarged schematic diagram of the center C;

[0021] Figure 8 It is one of the structural schematic diagrams of the push rod;

[0022] Fig. 9 The second schematic diagram of the structure of the push rod;

[0023] Fig.10 The third schematic diagram of the structure of the push rod;

[0024] Fig.11 It is a structural schematic diagram of the interior trim panel;

[0025] Fig.12 It is a structural schematic diagram of the panel bracket in state 1;

[0026] Fig.13 It is a structural schematic diagram of the panel bracket in state 2;

[0027] Fig.14 This is a structural schematic diagram of state three of the panel bracket.

[0028] Indicated in the attached drawings: 1. lining plate, 2. water tank, 3. panel bracket, 31. second limiter, 32. panel slide rail, 321. first area, 322. second area, 33. panel frame, 4. interior panel, 41. trim avoidance groove, 5. push rod, 51. first abutment portion, 52. second abutment portion, 53. first limiter, 54. buckle portion, 55. horizontal cross bar, 56. vertical connecting rod, 57. horizontal connecting seat, 6. door shaft assembly, 61. hinge shaft, 62. first elastic member, 63. shaft projection, 7. longitudinal drive assembly, 71. motor, 711. transmission rod, 712. limit slider, 72. transmission locking member, 721. limit housing, 722. third limiter, 73. locking shaft, 74. fixed shaft, 75. second elastic member, 76. sliding pressing member, 77. sliding ring, 78. micro switch. [Specific implementation method]

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0030] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The following is a further description of the specific embodiments of the present invention in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the present invention are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the present invention, but cannot be understood as limiting the present invention.

[0032] The preferred embodiment provided by the present invention is as follows: Figure 1-Figure 11As shown, a display panel flip mechanism and oven, comprising a lining board 1, a longitudinal drive assembly 7 arranged on the lining board 1, a panel bracket 3 flippably arranged at the front end of the lining board 1, a panel frame 33 arranged opposite to the panel bracket 3 and arranged at the front end of the lining board 1, a door shaft assembly 6 fixed at both ends on the lining board 1 and the panel bracket 3, a first elastic member 62 arranged at a hinge shaft 61 of the door shaft assembly 6, a push rod 5 performing longitudinal reciprocating motion at the front end of the lining board 1 and the push rod 5 is transmission-connected with the longitudinal drive assembly 7, an interior panel 4 covering the panel bracket 3, and a vertical stopper for guiding and ensuring that the push rod 5 only performs longitudinal reciprocating motion; the vertical stopper is arranged on the panel bracket 3 and / or on the door shaft assembly 6 and / or on the longitudinal drive assembly 7. The interior panel 4 and the panel frame 33 jointly cover the door shaft assembly 6 and the push rod 5; the panel frame 33 is vertically arranged at the front end of the lining board 1, and the interior panel 4 can be tightly fitted with the panel frame 33 when the panel bracket 3 is in a closed state. When the panel bracket 3 is in the closed state, the longitudinal drive assembly 7 drives the push rod 5 to move away from the lining board 1, and the push rod 5 abuts against the panel bracket 3 and causes the panel bracket 3 to rotate along the hinge shaft 61, that is, the panel bracket 3 is switched from the closed state to the open state. The first elastic member 62 at the hinge shaft 61 of the door shaft assembly 6 can make the panel bracket 3 approach the lining board 1, that is, under the elastic force of the first elastic member 62, the end of the panel bracket 3 away from the hinge shaft 61 always has a tendency to approach the panel frame 33, so that when the push rod 5 moves into the lining board 1, the panel bracket 3 can be reset to the position in the closed state, so that the interior panel 4 can fit the panel frame 33.

[0033] The push rod 5 includes a first abutting portion 51 arranged at the end of the push rod 5 and a second abutting portion 52 connected to the first abutting portion 51 at one end; the first abutting portion 51 slides on the first area 321 of the panel bracket 3, and the first area 321 is arranged on a side close to the free end of the panel bracket 3; in the process of the push rod 5 abutting the panel bracket 3, the first abutting portion 51 on the push rod 5 first contacts the first area 321 of the panel bracket 3; the first abutting portion 51 can be a specific contact point, a line or a contact surface at the end of the push rod 5; the position where the panel bracket 3 abuts against the first abutting portion 51 is the first area 321, that is, the end of the push rod 5 abuts against the first area 321 through point contact, line contact or surface contact. The second abutment portion 52 slides on the second area 322 of the panel bracket 3; in the process of the panel bracket 3 being converted from a closed state to an open state, the push rod 5 moves toward the panel bracket 3 under the drive of the longitudinal drive assembly 7, and the first abutment portion 51 first contacts the first area 321 of the panel bracket 3; then, the panel bracket 3 rotates around the hinge shaft 61 under the action of the push rod 5, and at the same time, the upper free end of the panel bracket 3 gradually moves away from the panel frame 33, and the first abutment portion 51 will move away from the first area 321; at this time, the second abutment portion 52 abuts against the second area 322, and the second abutment portion 52 slides on the second area 322 until the panel bracket 3 is in a fully opened horizontal state.

[0034] When the panel bracket 3 is in the closed state, the orthographic projection of the rotation axis of the hinge shaft 61 of the door shaft assembly 6 on the inner surface of the panel bracket 3 (orthographic projection 63 of the rotation axis) is below the first area 321. Since the orthographic projection 63 of the rotation axis is below the first area 321, and the first area 321 is the area where the longitudinal thrust of the push rod 5 first acts, the first area 321 can first form a torque on the rotation axis; this torque can make the panel bracket 3 obtain angular acceleration and change the momentum of the panel bracket 3, thereby making the panel bracket 3 perform a flipping motion away from or close to the lining plate 1 with the rotation axis as the rotation center.

[0035] The above implementation method ensures that the end of the push rod 5 is always in the accommodation space enclosed by the panel bracket 3 and the interior panel 4 during the longitudinal reciprocating motion of the push rod 5, while the other structures of the push rod 5 are hidden behind the panel frame 33, thereby avoiding the exposure of the connecting rod hinge structure that causes the display panel to flip in the prior art and avoiding the safety problems caused by the exposure of the connecting rod hinge structure.

[0036] It should be further explained that if the rotation axis orthographic projection 63 of the rotation axis coincides with the first area 321 as mentioned above, the thrust exerted by the push rod 5 on the panel bracket 3 is on the common plane α of the hinge axis 61 and the rotation axis orthographic projection 63. At this time, the thrust cannot cause any component in the plane α to rotate out of the plane, that is, the push rod 5 will not be able to cause the panel bracket 3 to rotate.

[0037] It should be noted that the initial position of the relevant structure is the position of the structure when the panel bracket 3 is in a fully closed state. Similarly, the terminal position of the relevant structure is the position of the structure when the panel bracket 3 is in a fully opened state. The first elastic member 62 can be an elastic member such as a torsion spring or a tension spring that can rotate the door shaft hinge structure.

[0038] In some optional embodiments, the vertical limiter limits the longitudinal displacement of the push rod 5, and can also limit or position the initial position or the end position of the push rod 5. The panel bracket 3 can also be provided with a panel slide rail 32 adapted to the shape of the end of the push rod 5; the panel slide rail 32 can be composed of a long strip section at the front section and an arc section at the rear section; the aforementioned first area 321 and the second area 322 are on the plane of the panel slide rail 32. The panel slide rail 32 can be composed of straight line segments and arc segments, or only arc segments, or only straight line segments.

[0039] Combination Figure 8 As shown, in the first embodiment, the vertical limiter includes a first limiter 53, which is a strip-shaped avoidance hole; the strip-shaped avoidance hole is arranged in the middle of the push rod 5; and the hinge shaft 61 is passed through the strip-shaped avoidance hole. Figure 5 In the schematic diagram of the first embodiment shown, the hinge shaft 61 is a columnar structure, which is inserted into the strip avoidance hole; the upper and lower side walls of the strip avoidance hole limit the hinge shaft 61, and the strip avoidance hole limits the vertical displacement of the hinge shaft 61, so that the push rod 5 can maintain longitudinal movement. That is, the push rod 5 is set at the position of the door shaft assembly 6, and when the push rod 5 makes longitudinal reciprocating motion, the hinge shaft 61 of the door shaft assembly 6 will interfere with the push rod 5; and another purpose of the strip avoidance hole is to avoid the aforementioned interference. This arrangement also makes the entire structure more compact, and there is no need to install the push rod 5 at other positions of the panel bracket 3, thereby making the structure lighter and thinner, thereby achieving a better appearance effect.

[0040] Furthermore, the two ends of the strip-shaped avoidance hole can also limit the position of the push rod 5, so that the push rod 5 can be accurately parked at the initial position and the end position.

[0041] Combination Fig. 9 and Figure 12-14As shown, in the second embodiment, the vertical limiter includes a second limiter 31, which is statically arranged relative to the panel bracket 3; the second limiter 31 is fixed on the panel bracket 3 or the door shaft assembly 6, and the second limiter 31 at least abuts against the front end of the push rod 5. In some embodiments, the middle part of the push rod 5 is provided with a strip-shaped avoidance hole of the first limiter 53 in the first embodiment, and the hinge shaft 61 cooperates with the strip-shaped avoidance hole to limit the push rod 5; the second limiter 31 only abuts against the front end upper surface of the push rod 5; the second limiter 31 is used to limit the vertical displacement of the push rod 5 when it moves close to the panel bracket 3. With the first limit member 5 and the second limit member 31 jointly limiting the push rod 5, this embodiment can effectively prevent the tolerance of components generated during production from causing the first abutment portion 51 to deviate from the first area 321, that is, under the limitation in the vertical direction of the second limit member 31, it can ensure that when the push rod 5 moves close to the panel bracket 3, the first abutment portion 51 can preferentially and accurately contact the first area 321.

[0042] In some optional embodiments, the structure of the push rod 5 is as follows: Fig.10 As shown, the second stopper 31 is arranged at the lower side of the push rod 5, and the second stopper 31 always contacts the push rod 5 during the movement of the push rod 5. At this time, the second stopper 31 needs to be kept in a relatively static position in the plane where the movement direction of the push rod 5 is located, so the second stopper 31 needs to be arranged on the axis of the hinge shaft 61. At the same time, this embodiment can also ensure that the first contact portion 51 can preferentially and accurately contact the first area 321 during the movement of the push rod 5 close to the panel bracket 3. At this time, it is not necessary to repeatedly set a strip hole or a slide groove or a slider inside the push rod 5 as a vertical stopper structure of the push rod 5. In the embodiment, the push rod 5 may not contact the hinge shaft 61, such as being suspended above the hinge shaft 61; or the push rod 5 may be arranged at other positions away from the door shaft assembly 6, such as the push rod 5 is arranged at a position between the door shaft assemblies 6 at both ends of the panel bracket 3. Such a setting can balance the force of the panel bracket 3, avoid concentrated force on any door shaft assembly 6, and reduce the assembled structural parts, simplify the structure, improve the assembly efficiency, and reduce the production cost.

[0043] Figure 12-14 It is a structural schematic diagram of three states in which the angles between the plane where the panel bracket 3 is located and the horizontal plane where the push rod 5 is located are 0°, 45° and 90° respectively during the opening and closing process of the panel bracket 3.

[0044] In a further optimization of the embodiment, the push rod 5 further includes a buckle portion 54 disposed at the front end of the push rod 5 and protruding toward the outside of the push rod 5; the buckle portion 54 may be a protruding structure on the push rod 5. In some optional embodiments, the push rod 5 is formed by stamping a metal sheet, and the buckle portion 54 may also be a hook-shaped structure at the end of the push rod 5. The buckle portion 54 may abut against the second stopper 31, and the buckle portion 54 is used to buckle the panel bracket 3 on the panel frame 33 when the panel bracket 3 is close to the closed state. When the panel bracket 3 is at the critical point of being in a fully closed state, the side wall of the snap-fitting portion 54 abuts against the second limit member 31, and the second limit member 31 moves along the movement direction of the push rod 5, while the push rod 5 is moving toward the inside of the lining plate 1, thereby causing the second limit member 31 to bring the panel bracket 3 toward the lining plate 1 so that the panel bracket 3 snaps and locks on the panel frame 33, thereby avoiding the situation where the user accidentally opens the display panel, and also avoiding the problem that the panel bracket 3 cannot be closed tightly due to aging failure of the first elastic member 62 after long-term use.

[0045] In this embodiment, it can also be combined with the first limiting member 53 in the first embodiment. At this time, the second limiting member 31 can only abut against the buckle portion 54, and the second limiting member 31 can be used as a positioning structure at the terminal position of the push rod 5; because the first limiting member 53 already has a limit on the vertical direction of the push rod 5, the second limiting member 31 does not need to be set to abut against the upper surface of the push rod 5, and only needs to abut against the buckle portion 54 at the end, that is, the second limiting member 31 may not have the effect of vertically limiting the push rod 5, and only realizes the longitudinal positioning of the push rod 5.

[0046] It should be noted that the panel bracket 3 rotates and moves longitudinally relative to the push rod 5; when the panel bracket 3 moves from the closed state to the open state, the push rod 5 first moves into the panel bracket 3, and the buckle portion 54 first moves away from the second stopper 31, that is, a clearance space is formed between the buckle portion 54 and the second stopper 31. When the first abutting portion 51 abuts against the panel bracket 3 or the panel slide rail 32, the panel bracket 3 starts to rotate with the hinge shaft 61 as the center of the circle, and the second stopper 31 rotates with the panel bracket 3 and rotates with the hinge shaft 61 as the center of the circle in the clearance space. When the panel bracket 3 is in a fully open state, the second stopper 31 can abut against the upper surface of the push rod 5 or above the push rod 5.

[0047] During the process of the panel bracket 3 changing from the open state to the closed state, the first elastic member 62 has an elastic force generated when it returns to its original state. Under the action of the aforementioned elastic force, the panel bracket 3 will flip in the closing direction. At the same time, the longitudinal drive assembly 7 drives the push rod 5 to move away from the panel bracket 3; when the panel bracket 3 tends to be vertical, the push rod 5 will further move away from the inner surface of the panel bracket 3 or the panel slide rail 32; the buckling portion 54 on the push rod 5 approaches and abuts against the second limit member 31, and finally achieves the locking effect of the panel bracket 3.

[0048] Specifically, since the outer contours of the first abutting portion 51 and the second abutting portion 52 of the push rod 5 tend to be an arc surface structure, during the longitudinal reciprocating motion of the push rod 5, the first abutting portion 51 and the second abutting portion 52 can generate a force in the vertical direction along the corresponding arc surface on the inner surface of the panel bracket 3 or the panel slide rail 32 at different time points; the force can be decomposed into a horizontal component and a vertical component, and the horizontal component is transmitted to the door shaft assembly 6. Since the door shaft assembly 6 is fixedly arranged, the panel bracket 3 will not move in the horizontal direction; Under the action of the vertical component force, the panel bracket 3 is subjected to a vertical downward force, and the magnitude of the force depends on the position of the push rod 5. Specifically, the force depends on the angle of the arc surface at the abutment point; when the vertical downward force at the abutment point is greater than the elastic force of the first elastic member 62, the panel bracket 3 will rotate and the free end of the panel bracket 3 will move away from the lining 1; conversely, when the vertical downward force at the abutment point is less than the elastic force of the first elastic member 62, the panel bracket 3 will rotate and the free end of the panel bracket 3 will move closer to the lining 1.

[0049] Combination Fig.10 As shown, in the third embodiment, the longitudinal drive assembly 7 includes a motor 71 connected to the push rod 5 by transmission, and a limit housing 721 covered on the side of the push rod 5; the vertical limit member includes a third limit member 722, and the third limit member 722 is arranged on the limit housing 721; at least a pair of limit sliders 712 are convexly arranged on the side walls of both sides of the push rod 5, and the limit slider 712 is slidably arranged in the third limit member 722. The third limit member 722 and the limit slider 712 can be a combination of a slide slot slider, or a combination of a strip hole and a slider. The third limit member 722 on the limit housing 721 is arranged along the movement direction of the push rod 5. The limit slider 712 arranged in the third limit member 722 ensures that the movement of the push rod 5 is only in the longitudinal direction, that is, the third limit member 722 and the limit slider 712 jointly limit the vertical displacement of the push rod 5. In this embodiment, the limit slider 712 is a columnar structure protruding from both sides of the push rod 5, and the third limit piece 722 is a strip hole provided on the side wall of the limit shell 721. The aforementioned columnar structure can be slidably inserted in the strip hole, and the strip hole limits the vertical displacement of the columnar structure.

[0050] Furthermore, columnar structures are provided on both sides of the middle and rear ends of the push rod 5. Such a configuration can effectively prevent the push rod 5 from tipping over in the limiting housing 721, thereby enabling the push rod 5 to perform longitudinal reciprocating motion more stably.

[0051] The transmission connection between the motor 71 and the push rod 5 belongs to conventional technical means, such as gear rack transmission, screw transmission, etc. The drive that enables the push rod 5 to move in a linear direction is also diverse, such as linear hydraulic cylinder drive, linear pneumatic cylinder drive, etc., which also belong to equivalent concepts. When the push rod 5 adopts a rack structure, the push rod 5 can be composed of a split structure, that is, the push rod 5 is divided into a front push rod 5 that directly abuts against the panel bracket 3 and a rear transmission rod 711 that is transmission-connected to the motor 71. The horizontal connecting seat 57 on the push rod 5 is fixed to one end of the transmission rod 711 by a fastener. For the split push rod, the purpose of such a setting is to facilitate the modular production of structural accessories and reduce production costs.

[0052] This embodiment can also be combined with the first embodiment or the second embodiment respectively, and multiple limiting structures can be used to limit the push rod 5. It can also be combined with this embodiment to add a buckle 54 with the effect of locking the panel bracket 3 at the end of the push rod 5. This embodiment can also be combined with the first embodiment and the second embodiment to form a more stable structure.

[0053] In this embodiment, the door hinge assembly 6 also includes a first hinge seat (not shown in the drawings) fixed on the panel bracket 3 and a second hinge seat (not shown in the drawings) fixed on the lining plate 1; the first hinge seat (not shown in the drawings) is hinged to the second hinge seat (not shown in the drawings) through a hinge shaft 61; the hinge shaft 61 is passed through the middle of the first elastic member 62; one end of the first elastic member 62 abuts against the panel bracket 3 or the first hinge seat (not shown in the drawings), and the other end of the first elastic member 62 abuts against the lining plate 1 or the second hinge seat (not shown in the drawings). The first elastic member 62 is a torsion spring, and the hinge shaft 61 is passed through the hole in the middle of the torsion spring. One end of the torsion spring is fixed on the panel bracket 3 or on the first hinge seat (not shown in the figure) in the panel bracket 3, and the other end of the torsion spring is fixed on the lining plate 1 or on the second hinge seat (not shown in the figure) in the lining plate 1; the purpose is to make one end of the torsion spring stationary relative to the panel bracket 3 or the first hinge seat (not shown in the figure), and the other end of the torsion spring stationary relative to the lining plate 1 or the second hinge seat (not shown in the figure). The deformation of the torsion spring forms a force on the panel bracket 3, so that the panel bracket 3 always has a tendency to approach the lining plate 1.

[0054] In this embodiment, the push rod 5 is further provided with a transmission locking member 72, which is convexly arranged on the upper surface of the push rod 5; the longitudinal drive assembly 7 includes a fixed shaft 74, a fixed locking shaft 73, a sliding pressing member 76 that can abut against one end of the transmission locking member 72, and a second elastic member 75 with two ends respectively arranged on the fixed shaft 74 and the sliding pressing member 76; the locking shaft 73 is inserted in the second elastic member 75. The second elastic member 75 is a torsion spring. One end of the second elastic member 75 is fixed on the fixed shaft 74, the middle part of the second elastic member 75 is inserted on the locking shaft 73, and the other end of the second elastic member 75 is placed on the sliding pressing member 76. The lower surface of the sliding pressing member 76 is slidably arranged on the upper surface of the push rod 5. Under the action of the second elastic member 75, the sliding pressing member 76 has a tendency to approach the direction of the push rod 5. Furthermore, when the push rod 5 moves longitudinally, the sliding pressing member 76 first abuts against the upper surface of the push rod 5 and slides thereon, then passes through the upper surface of the transmission locking member 72 and slides thereon, and then falls back to the upper surface of the push rod 5.

[0055] The transmission locking piece 72 is roughly a wedge-shaped structure, and the transmission locking piece 72 is arranged along the movement direction of the push rod 5. The front end and the rear end of the transmission locking piece 72 are two inclined surfaces respectively, and the two inclined surfaces are smoothly transitioned through an arc surface; the acute angle ɑ of the first inclined surface 723 at the rear end of the transmission locking piece 72 relative to the horizontal plane is smaller than the acute angle β of the second inclined surface 724 at the front end of the transmission locking piece 72 relative to the horizontal plane; the purpose of such a setting is that when the push rod 5 moves toward the rear end, the sliding pressing piece 76 can more easily pass over the transmission locking piece 72. At the same time, due to the large angle β, it is more difficult for the sliding pressing piece 76 to flip over the sliding pressing piece 76 from front to back, thereby achieving the locking effect of the push rod 5, so that when the motor 71 is not working, the push rod 5 is less likely to slide due to external force, and at the same time, it is also avoided that when the motor 71 is not working, unnecessary external force causes damage to the internal transmission structure.

[0056] Furthermore, the fixed shaft 74, the locking shaft 73, and the sliding pressing piece 76 are all columnar structures, and the longitudinal drive component 7 is provided with mounting holes for installing the fixed shaft 74 and the locking shaft 73; because the sliding pressing piece 76 will float up and down during the process of pressing and locking the push rod 5, the longitudinal drive component 7 also needs to be provided with corresponding strip holes, and the strip holes limit the longitudinal direction of the sliding pressing piece 76 to prevent the sliding pressing piece 76 from slipping in the longitudinal direction, thereby ensuring that the sliding pressing piece 76 performs vertical reciprocating motion at a preset position.

[0057] For further optimization, the sliding pressing member 76 may also be sleeved with a rotatable sliding ring 77 , and the sliding ring 77 is used to reduce the resistance during the abutment with the push rod 5 and the transmission locking member 72 .

[0058] Specifically, the fixed shaft 74, the locking shaft 73, the sliding press member 76 and the strip-shaped hole can also be arranged on the limit housing 721 of the longitudinal drive assembly 7; the specific position where the aforementioned structural components are arranged is not limited; although the longitudinal drive assembly 7 includes the aforementioned structural components, the position where the aforementioned structural components are arranged is not limited to being able to form a whole with the longitudinal drive assembly 7, that is, the aforementioned structural components can also be arranged on the lining plate 1. The limit housing 721, the fixed shaft 74, the locking shaft 73, and the strip-shaped hole are relatively stationary. Therefore, the positions where the fixed shaft 74, the locking shaft 73, the sliding press member 76 and the strip-shaped hole are arranged are not limited.

[0059] In this embodiment, at least two micro switches 78 are further included; the micro switches 78 are arranged on one side or both sides of the push rod 5, and are used to identify the initial position and the final position of the longitudinal reciprocating motion of the push rod 5; the distance between the micro switches 78 is not greater than the distance between the initial position and the final position of the push rod 5; the positions where the two micro switches 78 are arranged can correspond to the initial position and the final position of the same part of the push rod 5. Of course, the micro switches 78 can also be arranged at the initial position and the final position on different structures, such as setting a micro switch 78 at the initial position of the first part of the push rod 5, and setting a second micro switch 78 at the final position of the second part of the push rod 5, so that it can also be identified and judged whether the push rod 5 has moved to the preset position.

[0060] Furthermore, there may be multiple micro switches 78, and a micro switch 78 may be added between the initial position and the end position, so as to detect and determine whether the push rod 5 has reached a specific position, thereby achieving the purpose of hovering the panel bracket 3 at a specific angle.

[0061] In some optional embodiments, the micro switch 78 is provided on the lining plate 1 and is provided at the upper and lower sides of the panel bracket 3 to identify the initial position and the end position of the panel bracket 3 when performing the flipping movement. In the actual product, the front end of the lining plate 1 is also provided with a shell trim plate perpendicular to the lining plate 1; when the panel bracket 3 is in the closed state, the micro switch 78 is provided at the upper and lower sides of the shell trim plate corresponding to the panel bracket 3; the upper micro switch 78 is used to detect whether the panel bracket 3 is in the closed state, that is, to detect whether the panels are completely attached to the shell trim plate on the lining plate 1; the lower micro switch 78 can be provided at the position of the shell trim plate close to the panel bracket 3 when the panel bracket 3 is in the open state, for the purpose of detecting and judging whether the panel bracket 3 is in the open state.

[0062] In this embodiment, the interior panel 4 is also included, which is covered on the panel bracket 3. The interior panel 4 covers the door shaft assembly 6 and the push rod 5. The interior panel 4 is provided with a decorative panel avoidance groove 41 near the hinge shaft 61 and the push rod 5. When the panel bracket 3 is in a closed state, the door shaft assembly 6 and the push rod 5 are inserted into the decorative panel avoidance groove 41; during the flipping process of the panel bracket 3, the push rod 5 does not contact the decorative panel avoidance groove 41. The purpose of this setting is to beautify the panel bracket 3 through the interior panel 4, so as to avoid the direct exposure of the structural parts on the panel bracket 3 and affect the user experience; at the same time, the interior panel 4 also covers most of the push rod 5 and the door shaft assembly 6 structure, so that the push rod 5 and the door shaft assembly 6 are not directly exposed. Since the push rod 5 is longitudinally reciprocating, during the flipping process of the panel bracket 3, the push rod 5 will only be briefly exposed outside the decorative panel avoidance groove 41; when the panel bracket 3 is in a fully open state, the push rod 5 will be completely hidden in the interior panel 4.

[0063] The present invention also provides an oven, comprising the aforementioned display panel flipping mechanism, a water tank 2 detachably arranged on a lining plate 1; when the panel bracket 3 is in a fully opened state, the plane where the panel bracket 3 is located is parallel to the plane where the lining plate 1 is located; the water tank 2 is located above the plane where the panel bracket 3 is located, or the lower surface of the water tank 2 is located in the plane where the panel bracket 3 is located; and the panel bracket 3 flips downward relative to the water tank 2. In an oven with a steam cooking function, it is usually necessary to replenish water in the water tank 2 in the oven. During the replenishing process, it is necessary to open the decorative panel outside the water tank 2, then take out the water tank 2, and then replenish water in the water tank 2. In order to maintain the consistency of the appearance of the oven, in this embodiment, the water tank 2 structure is hidden behind the panel bracket 3. The panel bracket 3 flips downward relative to the water tank 2, so that when the panel bracket 3 is in a fully opened state, the front of the water tank 2 can be completely exposed and when the water tank 2 is disassembled, it is not blocked by the panel bracket 3 on the moving path of the water tank 2, thereby simplifying the user's actions when disassembling and assembling the water tank 2 and improving the user's use experience.

[0064] Further, in this embodiment, the lining plate 1 is below the panel bracket 3; the push rod 5 is a "Z"-shaped structure, and the push rod 5 includes a horizontal cross bar 55, a horizontal connecting seat 57 that is transmission-connected to the longitudinal drive assembly 7, and a vertical connecting rod 56 that is fixedly connected to the horizontal cross bar 55 and the horizontal connecting seat 57 at both ends. The horizontal connecting seat 57 is fixedly connected to the transmission rod 711 of the longitudinal drive assembly 7. The connection method can be a screw bolt connection, or a conventional connection method such as a clamping connection or welding. Of course, the horizontal connecting seat 57 and the transmission rod 711 can also be an integrally formed structure, which can simplify the assembly process. When the horizontal connecting seat 57 is not on the same horizontal plane as the lining plate 1 and the panel bracket 3, it is necessary to form a "Z"-shaped structure of the push rod 5 through a structural member (vertical connecting rod 56) in the vertical direction, thereby increasing the height of the end of the push rod 5, so that the push rod 5 can better connect to the longitudinal drive assembly 7 and drive the panel bracket 3 to rotate. This arrangement can solve the problem that the lining plate 1 and the panel bracket 3 are not on the same horizontal plane through a low-cost structural solution.

[0065] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0066] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the well-known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A display panel flipping mechanism, characterized in that: It includes a lining plate, a longitudinal driving assembly arranged on the lining plate, a panel bracket flipably arranged at the front end of the lining plate, a panel frame arranged opposite to the panel bracket and arranged at the front end of the lining plate, a door shaft assembly with two ends respectively fixed to the lining plate and the panel bracket, a first elastic member arranged at the hinge shaft of the door shaft assembly, a push rod that performs longitudinal reciprocating motion at the front end of the lining plate and the push rod is transmission-connected with the longitudinal driving assembly, an interior panel covering the panel bracket, and a vertical limiter for guiding the movement direction of the push rod; The interior trim panel and the panel frame jointly cover the door shaft assembly and the push rod; The vertical limiter is arranged on the panel bracket and / or on the door shaft assembly and / or on the longitudinal drive assembly; The push rod comprises a first abutment portion arranged at the end of the push rod and a second abutment portion one end of which is connected to the first abutment portion; The first abutting portion can slide on a first area on the inner surface of the panel bracket, and the first area is arranged on a side close to the free end of the panel bracket; the second abutting portion slides on a second area of ​​the panel bracket; When the panel bracket is in a closed state, the orthographic projection of the rotation axis of the hinge shaft of the door shaft assembly on the inner surface of the panel bracket is below the first area.

2. A display panel flipping mechanism according to claim 1, characterized in that: The vertical limiting member includes a first limiting member, and the first limiting member is a strip-shaped avoidance hole; The strip-shaped avoidance hole is arranged in the middle of the push rod; The hinge shaft is inserted into the strip-shaped avoidance hole.

3. The display panel flipping mechanism according to claim 1, characterized in that: The vertical limiting member includes a second limiting member, the second limiting member is statically arranged relative to the panel bracket, and the second limiting member at least abuts against the front end of the push rod.

4. A display panel flipping mechanism according to claim 3, characterized in that: The push rod also includes a buckling portion arranged at the front end of the push rod and protruding toward the outside of the push rod, the buckling portion can abut against the second limiting member, and the buckling portion is used to buckle the panel bracket on the panel frame when the panel bracket is close to a closed state.

5. A display panel flipping mechanism according to claim 1, characterized in that: The door shaft assembly also includes a first hinge seat fixedly mounted on the panel bracket and a second hinge seat fixedly mounted on the lining plate; The first hinge seat is hinged to the second hinge seat via the hinge shaft; The hinge shaft is disposed through the middle portion of the first elastic member; One end of the first elastic member abuts against the panel bracket or the first hinge seat, and the other end of the first elastic member abuts against the lining plate or the second hinge seat.

6. A display panel flipping mechanism according to claim 1, 2 or 4, characterized in that: The longitudinal drive assembly includes a motor connected to the push rod in transmission, and a limit housing covering the periphery of the push rod; The vertical limiting member includes a third limiting member, and the third limiting member is arranged on the limiting housing; At least one pair of limiting sliding blocks is protruded from the side walls on both sides of the push rod, and the limiting sliding blocks are slidably arranged in the third limiting member.

7. The display panel flipping mechanism according to claim 3, characterized in that: The push rod is arranged between the two door shaft assemblies; The second limiting member abuts against the lower surface of the push rod to limit the vertical displacement of the push rod.

8. The display panel flipping mechanism according to claim 1, characterized in that: It also includes a trim panel avoidance groove, which is arranged on the interior trim panel near the hinge shaft and the push rod.

9. An oven, characterized in that: It comprises a display panel flipping mechanism according to any one of claims 1 to 8, and a water tank detachably arranged in the panel frame; When the panel bracket is in a fully opened state, the water tank is above the plane where the panel bracket is located; or, the lower surface of the water tank is in the plane where the panel bracket is located.

10. An oven according to claim 9, characterized in that: The lining plate is below the panel support; The push rod is a "Z"-shaped structure, and includes a horizontal cross bar, a horizontal connecting seat transmission-connected to the longitudinal drive assembly, and a vertical connecting rod with two ends respectively fixedly connected to the horizontal cross bar and the horizontal connecting seat.

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