Door opening mechanism with automatic door opening function

Abstract

The utility model discloses a door opening mechanism with an automatic door opening function, comprising a bottom box, a driving assembly, a running gear, a push rod and a first micro switch; the first micro switch, the driving assembly and the running gear are respectively mounted on the Z-direction inner wall surface of the bottom box; the first micro switch is connected to the driving assembly signal; the push rod comprises a push rod portion and a guide groove body; the push rod is mounted on the wheel surface of the running gear away from the bottom box; the push rod portion is located at one end of the push rod; the guide groove body is located at the other end of the push rod; the two ends of the guide groove body are respectively an open end and a closed end; the running gear is provided with a transfer shaft, the transfer shaft is close to the outer peripheral edge of the running gear, and the transfer shaft protrudes from the wheel surface of the running gear away from the bottom box; the driving assembly is in transmission connection with the running gear; the driving assembly drives the running gear to rotate, so that the transfer shaft enters the guide groove from the open end, and the transfer shaft pushes the push rod to move. The function of automatic door opening is realized by the cooperation of the driving assembly and the running gear, and the transfer shaft and the push rod.

Description

Technical Field

[0001] The utility model relates to the technical field of door opening mechanisms, in particular to a door opening mechanism with an automatic door opening function. Background Art

[0002] Oven is one of the commonly used cooking tools in daily life.

[0003] After the food is baked, the oven in the prior art requires the user to open the oven door by hand, which is not convenient to operate and affects the user experience. Utility Model Content

[0004] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide a door opening mechanism with an automatic door opening function to solve the problem of insufficient convenience in opening the oven door.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A door opening mechanism with an automatic door opening function comprises a bottom box, a driving assembly, a running gear, a push rod and a first micro switch;

[0007] The first micro switch, the driving assembly and the running gear are respectively mounted on the Z-direction inner wall surface of the bottom box; the first micro switch is connected to the driving assembly by signal;

[0008] The push rod comprises a push rod portion and a guide groove body; the push rod is mounted on the wheel surface of the operating gear away from the bottom box; the push rod extends along the Y-axis direction, the push rod portion is located at one end of the push rod, and the push rod portion is used to face the door body and abut against the door body; the guide groove body is located at the other end of the push rod, and the guide groove body is provided with a guide groove extending along the X direction, and the notch of the guide groove body faces the wheel surface of the operating gear;

[0009] The two ends of the guide groove body extending along the X direction are an open end and a closed end, respectively, and the open end and the closed end are located on both sides of the push rod respectively;

[0010] The running gear is provided with a transfer shaft, the transfer shaft extends along the Z-axis direction, the transfer shaft is close to the outer peripheral edge of the running gear, and the transfer shaft protrudes from the wheel surface of the running gear away from the bottom box; the driving assembly is in transmission connection with the running gear;

[0011] The driving assembly drives the operating gear to rotate, so that the transfer shaft enters the guide groove from the open end, and the transfer shaft running in the guide groove pushes the push rod to move.

[0012] Furthermore, it also includes an upper cover and a return spring;

[0013] The upper cover is buckled with the bottom box along the Z-axis direction; the upper cover is provided with a first hook hole, a spring receiving groove and a Y-direction port;

[0014] The Y-direction port is located on the end surface of the upper cover facing the door body; the ejector rod is exposed at the Y-direction port;

[0015] The spring receiving groove is located on the inner wall surface of the upper cover facing the bottom box, the spring receiving groove extends along the Y-axis direction, and one end of the spring receiving groove is connected to the Y-direction port; the first hook hole is close to the other end of the spring receiving groove, and the first hook hole passes through the upper cover;

[0016] One end of the return spring is hooked on the first hook hole, and the other end of the return spring is close to the push rod part and hooked on the middle part of the push rod.

[0017] Further, the driving assembly includes a motor and a driving gear;

[0018] The bottom box is provided with a first embedding groove and a second embedding groove; the first embedding groove and the second embedding groove are arranged adjacent to and in communication with each other;

[0019] The running gear is embedded in the first embedding groove, the driving gear is embedded in the second embedding groove, and the driving gear is meshed with the running gear;

[0020] The output end of the motor is transmission-connected to the driving gear, and the motor is signal-connected to the first micro-switch.

[0021] Furthermore, it also includes a second micro switch;

[0022] The second micro switch is used for signal connection with a control device of an oven equipped with the door opening mechanism with automatic door opening function;

[0023] The first micro switch and the second micro switch are arranged at intervals along the Y-axis direction on the outer side of the running gear away from the driving gear;

[0024] The first micro switch is close to the first hook hole, and the second micro switch is close to the first hook hole;

[0025] One end of the guide slot body is used to trigger the approaching touch end of the first micro switch or the touch end of the second micro switch.

[0026] Furthermore, the upper cover is also provided with a sliding groove;

[0027] The sliding groove extends along the Y-axis direction, and the spring receiving groove is recessed in the bottom surface of the sliding groove;

[0028] The push rod further includes a sliding portion; the sliding portion is provided with a mounting groove;

[0029] The sliding portion is located in the middle of the push rod; the mounting groove extends along the Y-axis direction; the other end of the return spring is hooked in the middle of the mounting groove;

[0030] One end of the push rod portion is inserted into one end of the slide portion through one end of the mounting groove facing the Y-direction port; the Y-direction end surface of the guide groove body is connected to the other end of the slide portion;

[0031] The Z-direction end surface of the sliding portion slides against the groove bottom surface of the sliding groove, and the two side surfaces of the sliding portion in the X-direction slide against the groove wall surfaces of the sliding groove respectively.

[0032] Furthermore, the top rod portion is provided with a limiting protrusion;

[0033] The limiting protrusion protrudes from the outer peripheral surface of the push rod part, and the limiting protrusion is used to abut against the edge of the Y-direction port.

[0034] Furthermore, the top rod portion is also provided with at least two fastener mounting holes;

[0035] Two fastener mounting holes are arranged at intervals on one end of the top rod portion and inserted into the mounting groove, and the fastener mounting holes penetrate the top rod portion;

[0036] The mounting groove is provided with at least two through holes, and the two through holes are arranged at intervals at one end of the mounting groove facing the Y-direction port;

[0037] The two through holes are used to cooperate with the two fastener mounting holes.

[0038] Preferably, the length of the guide groove in the X direction is the same as the circumferential diameter of the outer peripheral surface of the transfer shaft when in operation.

[0039] The beneficial effect of the technical solution of the utility model is as follows: the door opening mechanism with automatic door opening function drives the operating gear to rotate through the driving component, and then drives the push rod to move through the operation of the transfer shaft of the operating gear in the guide groove, and finally makes the top rod part of the push rod abut against the door body and push open the oven door, thereby realizing automatic opening of the oven door without manual door opening, thereby improving the user's operating convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a structural schematic diagram of the door opening mechanism with automatic door opening function of the utility model without the upper cover and in the initial state or the reset state;

[0041] Figure 2It is a structural schematic diagram of the door opening mechanism with automatic door opening function including an upper cover of the utility model;

[0042] Figure 3 It is a structural schematic diagram of the door opening mechanism with automatic door opening function of the utility model without the upper cover and in the door opening state;

[0043] Figure 4 It is a schematic diagram of the installation structure of the running gear and the driving gear;

[0044] Figure 5 It is a schematic diagram of the structure of the sliding part and the guide groove body of the push rod;

[0045] Figure 6 It is a schematic diagram of the structure of the upper cover;

[0046] Figure 7 It is a structural schematic diagram of the bottom box;

[0047] Among them: box body 1; bottom box 2; upper cover 3; driving assembly 4; running gear 5; push rod 6; first micro switch 7; second micro switch 8; reset spring 9; first embedding groove 21; second embedding groove 22; Y-axis port 30; first hook hole 31; spring receiving groove 32; sliding groove 33; motor 41; driving gear 42; transfer shaft 51; push rod part 61; sliding part 62; guide groove body 63; limiting protrusion 611; fastener mounting hole 612; mounting groove 621; guide groove 630; open end 631; closed end 632; through hole 6211. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1-7 The technical solution of the utility model is further illustrated by specific implementation methods.

[0049] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" 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 be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, which can be said to be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] A door opening mechanism with an automatic door opening function, comprising a bottom box 2, a driving assembly 4, a running gear 5, a push rod 6 and a first micro switch 7;

[0052] The first micro switch 7, the driving assembly 4 and the running gear 5 are respectively mounted on the inner wall surface of the bottom box 2 in the Z direction; the first micro switch 7 is connected to the driving assembly 4 by signal;

[0053] The push rod 6 includes a push rod portion 61 and a guide groove body 63; the push rod 6 is mounted on the wheel surface of the operating gear 5 away from the bottom box 2; the push rod 6 extends along the Y-axis direction, the push rod portion 61 is located at one end of the push rod 6, and the push rod portion 61 is used to face the door body and abut against the door body; the guide groove body 63 is located at the other end of the push rod 6, and the guide groove body 63 is provided with a guide groove 630 extending along the X direction, and the notch of the guide groove body 63 faces the wheel surface of the operating gear 5;

[0054] The two ends of the guide groove body 63 extending along the X direction are an open end 631 and a closed end 632, respectively. The open end 631 and the closed end 632 are located at two sides of the push rod 6, respectively.

[0055] The running gear 5 is provided with a transfer shaft 51, and the transfer shaft 51 extends along the Z-axis direction, the transfer shaft 51 is close to the outer peripheral edge of the running gear 5, and the transfer shaft 51 protrudes from the wheel surface of the running gear 5 away from the bottom box 2; the driving assembly 4 is in transmission connection with the running gear 5;

[0056] The driving assembly 4 drives the operating gear 5 to rotate, so that the transfer shaft 51 enters the guide groove 630 from the open end 631, and the transfer shaft 51 running in the guide groove 630 pushes the push rod 6 to move.

[0057] like Figure 1-3 It is a structural schematic diagram of the door opening mechanism with automatic door opening function of the utility model, and the bottom box 2 is installed on the inner wall surface of the box body 1 in the Z direction; Figure 4 The running gear 5 with the transfer shaft 51 is in the state when the oven door is pushed open, and the transfer shaft 51 in the figure is located at the Y-direction circumferential edge of the running gear 5 closest to the door body; Figure 5 It is a partial structural schematic diagram of the push rod 6.

[0058] When it is necessary to open the oven door equipped with the door opening mechanism with automatic door opening function of the utility model, the door opening button is pressed, the first microswitch 7 is started, and the first microswitch 7 sends a signal to the drive component 4, the drive component 4 is started and drives the operating gear 5 to rotate, so that the transfer shaft 51 enters the guide groove 630 from the open end 631, and the transfer shaft 51 running along the guide groove 630 pushes the push rod 6 to move toward the door body along the Y-axis direction. When the transfer shaft 51 touches the inner wall of the closed end 632 of the guide groove 630, the drive component 4 continues to push the operating gear 5 to rotate, and the transfer shaft 51 moves in the opposite direction toward the open end 631 along the guide groove 630. When the transfer shaft 51 reaches the Y-direction circumferential edge of the operating gear 5 closest to the door body, the push rod portion 61 at the Y-direction end of the push rod 6 abuts against the door body, so that the oven door is pushed open, and the automatic opening operation of the oven door is completed.

[0059] It should be noted that the door opening mechanism with automatic door opening function of the utility model can be used in ovens, as well as in kitchen appliances such as microwave ovens and dishwashers.

[0060] Furthermore, it also includes an upper cover 3 and a return spring 9;

[0061] The upper cover 3 is buckled with the bottom box 2 along the Z-axis direction; the upper cover 3 is provided with a first hook hole 31, a spring receiving groove 32 and a Y-direction port 30;

[0062] The Y-direction port 30 is located on the end surface of the upper cover 3 facing the door body; the top rod portion 61 is exposed outside the Y-direction port 30;

[0063] The spring receiving groove 32 is located on the inner wall surface of the upper cover 3 facing the bottom box 2, and the spring receiving groove 32 extends along the Y-axis direction, and one end of the spring receiving groove 32 is connected to the Y-direction port 30; the first hook hole 31 is close to the other end of the spring receiving groove 32, and the first hook hole 31 passes through the upper cover 3;

[0064] One end of the return spring 9 is hooked on the first hook hole 31 , and the other end of the return spring 9 is close to the push rod portion 61 and hooked on the middle portion of the push rod 6 .

[0065] like Figure 1-3 As shown in FIG. 2 , when the push rod 61 abuts against the door body and pushes the oven door open, the driving assembly 4 continues to push the operating gear 5 to rotate, and the transfer shaft 51 runs in the opposite direction along the guide groove 630 and moves toward the opening end 631, while driving the push rod 6 to retract. When the transfer shaft 5 reaches the opening end 631, under the action of the elastic force, the return spring 9 pulls the push rod 6 to retract in the opposite direction along the Y axis to the starting position and resets. The transfer shaft 5 escapes from the guide groove 630 of the push rod 6, and the push rod 6 is reset to the position shown in FIG. Figure 1 shown.

[0066] Further, the driving assembly 4 includes a motor 41 and a driving gear 42;

[0067] The bottom box 2 is provided with a first embedding groove 21 and a second embedding groove 22; the first embedding groove 21 and the second embedding groove 22 are arranged adjacent to and in communication with each other;

[0068] The running gear 5 is embedded in the first embedding groove 21, and the driving gear 42 is embedded in the second embedding groove 22, and the driving gear 42 is meshed with the running gear 5;

[0069] The output end of the motor 41 is transmission-connected to the driving gear 42 , and the motor 41 is signal-connected to the first micro switch 7 .

[0070] like Figure 3 and Figure 4 As shown, the motor 41 drives the running gear 5 to rotate through the driving gear 42 , and the running gear 5 and the driving gear 42 are respectively embedded in the first embedding groove 21 and the second embedding groove 22 , which can improve the running stability of the running gear 5 pushing the push rod 6 .

[0071] Furthermore, it also includes a second micro switch 8;

[0072] The second micro switch 8 is used for signal connection with a control device of an oven equipped with the door opening mechanism with automatic door opening function;

[0073] The first micro switch 7 and the second micro switch 8 are arranged at intervals along the Y-axis direction on the outer side of the running gear 5 away from the driving gear 42;

[0074] The first micro switch 7 is close to the first hook hole 31, and the second micro switch 8 is close to the first hook hole 31;

[0075] One end of the guide slot 63 is used to trigger the approaching touch end of the first micro switch 7 or the approaching touch end of the second micro switch 8 .

[0076] like Figure 3 As shown, when the push rod portion 61 abuts against the door body and pushes the oven door open, one end of the guide groove body 63 triggers the second microswitch 8, causing the second microswitch 8 to send a signal to the control device of the oven equipped with the door opening mechanism with automatic door opening function. The control device receives the signal and sends a prompt or alarm that the oven door is opened to remind the user.

[0077] like Figure 1 As shown, when the reset spring 9 pulls the push rod 6 to retract in the opposite direction along the Y axis and reset to the starting position, one end of the guide groove 63 triggers the first micro switch 7, and the first micro switch 7 sends a signal to the motor 41, and the motor 41 stops running.

[0078] Furthermore, the upper cover 3 is also provided with a sliding groove 33;

[0079] The sliding groove 33 extends along the Y-axis direction, and the spring receiving groove 32 is recessed in the bottom surface of the sliding groove 33;

[0080] The push rod 6 further includes a sliding portion 62; the sliding portion 62 is provided with a mounting groove 621;

[0081] The sliding portion 62 is located in the middle of the push rod 6; the mounting groove 621 extends along the Y-axis direction; the other end of the return spring 9 is hooked in the middle of the mounting groove 621;

[0082] One end of the push rod portion 61 is inserted into one end of the slide portion 62 through one end of the mounting groove 621 facing the Y-direction port 30; the Y-direction end surface of the guide groove body 63 is connected to the other end of the slide portion 62;

[0083] The Z-direction end surface of the sliding portion 62 slides against the bottom surface of the sliding groove 33 , and the two side surfaces of the sliding portion 62 slide against the groove wall surfaces of the sliding groove 33 .

[0084] like Figure 1 , 3 As shown in FIGS. 5 and 6 , the push rod 6 slides along the guide of the slide groove 33 in the Y-axis direction or the opposite direction of the Y-axis, and has good operating stability.

[0085] Furthermore, the top rod portion 61 is provided with a limiting protrusion 611;

[0086] The limiting protrusion 611 protrudes from the outer peripheral surface of the push rod portion 61 , and the limiting protrusion 611 is used to abut against the edge of the Y-direction port 30 .

[0087] like Figure 1-3 As shown, during the process of the push rod 6 being pulled back by the reset spring 9, the limiting protrusion 611 abuts against the edge of the Y-direction port 30, which can prevent the other end of the push rod portion 61 from being retracted into the Y-direction port 30, thereby preventing the push rod 6 from being insufficient in length during subsequent operation, and preventing the door opening function of the door opening mechanism with automatic door opening function from failing.

[0088] Furthermore, the top rod portion 61 is also provided with at least two fastener mounting holes 612;

[0089] Two fastener mounting holes 612 are arranged at intervals at one end of the top rod portion 61 inserted into the mounting groove 621, and the fastener mounting holes 612 penetrate the top rod portion 61;

[0090] The mounting groove 621 is provided with at least two through holes 6211 , and the two through holes 6211 are arranged at intervals at one end of the mounting groove 621 facing the Y-direction port 30 ;

[0091] The two through holes 6211 are used to cooperate with the two fastener mounting holes 612 .

[0092] like Figure 3 and Figure 5 As shown, different fastener mounting holes 612 are selected to cooperate with a through hole 6211, and the fastener is passed through the fastener mounting hole 612 and the corresponding through hole 6211 to fix one end of the push rod part 61 to one end of the mounting groove 621. The length of the push rod part 61 exposed from the Y-axis port 30 can be adjusted to meet the installation requirements of different models.

[0093] Preferably, the length of the guide groove 630 in the X direction is the same as the circumferential diameter of the outer peripheral surface of the transfer shaft 51 when in operation.

[0094] like Figure 1 and Figure 3 As shown, this avoids the phenomenon that the guide groove 630 restricts the operation of the transfer shaft 51, ensuring the smooth operation of the operating gear 5.

[0095] In summary, if Figure 1-7 In the embodiment of the utility model shown, the door opening mechanism with automatic door opening function drives the operating gear 5 to rotate through the driving component 4, and then drives the push rod 6 to move through the operation of the transfer shaft 51 of the operating gear 5 in the guide groove 630, and finally makes the top rod part 61 of the push rod 6 abut against the door body and push the oven door open, thereby realizing automatic door opening of the oven without manual door opening, thereby improving the user's operating convenience.

[0096] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A door opening mechanism with automatic door opening function, characterized in that: It includes a bottom box, a driving assembly, a running gear, a push rod and a first micro switch; The first micro switch, the driving assembly and the running gear are respectively mounted on the Z-direction inner wall surface of the bottom box; the first micro switch is connected to the driving assembly by signal; The push rod comprises a push rod portion and a guide groove body; the push rod is mounted on the wheel surface of the operating gear away from the bottom box; the push rod extends along the Y-axis direction, the push rod portion is located at one end of the push rod, and the push rod portion is used to face the door body and abut against the door body; the guide groove body is located at the other end of the push rod, and the guide groove body is provided with a guide groove extending along the X direction, and the notch of the guide groove body faces the wheel surface of the operating gear; The two ends of the guide groove body extending along the X direction are an open end and a closed end, respectively, and the open end and the closed end are located on both sides of the push rod respectively; The running gear is provided with a transfer shaft, the transfer shaft extends along the Z-axis direction, the transfer shaft is close to the outer peripheral edge of the running gear, and the transfer shaft protrudes from the wheel surface of the running gear away from the bottom box; the driving assembly is in transmission connection with the running gear; The driving assembly drives the operating gear to rotate, so that the transfer shaft enters the guide groove from the open end, and the transfer shaft running in the guide groove pushes the push rod to move.

2. The door opening mechanism with automatic door opening function according to claim 1, characterized in that: Also includes an upper cover and a return spring; The upper cover is buckled with the bottom box along the Z-axis direction; the upper cover is provided with a first hook hole, a spring receiving groove and a Y-direction port; The Y-direction port is located on the end surface of the upper cover facing the door body; the ejector rod is exposed at the Y-direction port; The spring receiving groove is located on the inner wall surface of the upper cover facing the bottom box, the spring receiving groove extends along the Y-axis direction, and one end of the spring receiving groove is connected to the Y-direction port; the first hook hole is close to the other end of the spring receiving groove, and the first hook hole passes through the upper cover; One end of the return spring is hooked on the first hook hole, and the other end of the return spring is close to the push rod part and hooked on the middle part of the push rod.

3. The door opening mechanism with automatic door opening function according to claim 2, characterized in that: The driving assembly includes a motor and a driving gear; The bottom box is provided with a first embedding groove and a second embedding groove; the first embedding groove and the second embedding groove are arranged adjacent to and in communication with each other; The running gear is embedded in the first embedding groove, the driving gear is embedded in the second embedding groove, and the driving gear is meshed with the running gear; The output end of the motor is transmission-connected to the driving gear, and the motor is signal-connected to the first micro-switch.

4. The door opening mechanism with automatic door opening function according to claim 3, characterized in that: Also included is a second micro switch; The second micro switch is used for signal connection with a control device of an oven equipped with the door opening mechanism with automatic door opening function; The first micro switch and the second micro switch are arranged at intervals along the Y-axis direction on the outer side of the running gear away from the driving gear; The first micro switch is close to the first hook hole, and the second micro switch is close to the first hook hole; One end of the guide slot body is used to trigger the approaching touch end of the first micro switch or the touch end of the second micro switch.

5. The door opening mechanism with automatic door opening function according to claim 2, characterized in that: The upper cover is also provided with a sliding groove; The sliding groove extends along the Y-axis direction, and the spring receiving groove is recessed in the bottom surface of the sliding groove; The push rod further includes a sliding portion; the sliding portion is provided with a mounting groove; The sliding portion is located in the middle of the push rod; the mounting groove extends along the Y-axis direction; the other end of the return spring is hooked in the middle of the mounting groove; One end of the push rod portion is inserted into one end of the slide portion through one end of the mounting groove facing the Y-direction port; the Y-direction end surface of the guide groove body is connected to the other end of the slide portion; The Z-direction end surface of the sliding portion slides against the groove bottom surface of the sliding groove, and the two side surfaces of the sliding portion in the X-direction slide against the groove wall surfaces of the sliding groove respectively.

6. The door opening mechanism with automatic door opening function according to claim 5, characterized in that: The top rod portion is provided with a limiting protrusion; The limiting protrusion protrudes from the outer peripheral surface of the push rod part, and the limiting protrusion is used to abut against the edge of the Y-direction port.

7. The door opening mechanism with automatic door opening function according to claim 6, characterized in that: The top rod portion is also provided with at least two fastener mounting holes; Two fastener mounting holes are arranged at intervals on one end of the top rod portion and inserted into the mounting groove, and the fastener mounting holes penetrate the top rod portion; The mounting groove is provided with at least two through holes, and the two through holes are arranged at intervals at one end of the mounting groove facing the Y-direction port; The two through holes are used to cooperate with the two fastener mounting holes.

8. The door opening mechanism with automatic door opening function according to claim 1, characterized in that: The length of the guide groove in the X direction is the same as the circumferential diameter of the outer peripheral surface of the transfer shaft when in operation.

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