Manual and automatic electric oven door hinge

Abstract

The present invention discloses a manual-automatic electric oven door hinge, comprising: a hinge shell, a swing head and an inner movable arm; a motor and a sliding bracket are arranged on the hinge shell; the inner movable arm is fixedly connected to the sliding bracket; the motor and the sliding bracket can move linearly along the hinge shell, and an elastic lock buckle for limiting the movement of the motor is arranged on the hinge shell; in electric mode: the motor is fixed to the hinge shell by the elastic lock buckle, and the motor drives the sliding bracket to move to push the inner movable arm to move, and further realizes the swing of the swing head; in manual mode: the swing head swings under the action of external force to pull the inner movable arm to move, and further pulls the sliding bracket and the motor to move linearly synchronously; the two modes of electric operation and manual operation can meet different usage requirements. In the electric mode, it can adapt to the intelligent use of modern oven appliances, and the manual mode can overcome the problem of being able to manually open and close the oven door when the power is off.

Description

Technical Field

[0001] The invention relates to the technical field of hinges, and more particularly to a manual-automatic electric oven door hinge. Background Art

[0002] A hinge is a device that can connect two parts. After the two parts are connected, they can be rotated to open and close, thereby achieving the purpose of opening / closing.

[0003] Hinges are widely used in doors and windows, furniture, home appliances and other fields. With the rapid development of society, in addition to basic electrical appliances such as rice cookers and induction cookers, high-quality home appliances such as microwave ovens and ovens have also entered the home. Microwave ovens, ovens and other home appliances all rely on hinges to connect the box body and the door.

[0004] In traditional technology, microwave ovens and ovens are mostly opened and closed manually. With the continuous development of home automation and intelligence, I have developed a manual and automatic electric oven door hinge to meet the needs of home automation and intelligence. Summary of the invention

[0005] In view of this, the present invention provides a manual-automatic electric oven door hinge.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a manual-automatic electric oven door hinge, comprising: a hinge shell, a swing head swingably connected to one end of the hinge shell, and an inner movable arm installed inside the hinge shell; when the swing head swings around the connection with the hinge shell, the inner movable arm correspondingly moves back and forth in a straight line inside the hinge shell; a motor and a sliding bracket are provided on the hinge shell; the inner movable arm is fixedly connected to the sliding bracket; the motor and the sliding bracket can move in a straight line along the hinge shell, and an elastic lock for limiting the movement of the motor is provided on the hinge shell; in electric mode: the motor is fixed to the hinge shell by the elastic lock, and the motor drives the sliding bracket to move, so as to push the inner movable arm to move, and further realize the swing of the swing head; in manual mode: the swing head swings under the action of external force, so as to pull the inner movable arm to move, and further pull the sliding bracket and the motor to move synchronously in a straight line; when moving, the motor overcomes the resistance of the elastic lock and moves.

[0007] In the preferred technical solution, the motor has a motor output shaft, which is a screw; a screw hole for inserting the motor output shaft is formed on the sliding bracket, and an internal thread is formed in the screw hole; when the motor output shaft rotates, it cooperates with the thread of the screw hole to drive the sliding bracket to move linearly along the hinge housing.

[0008] In a preferred technical solution, the motor is installed on the outside of the hinge housing through a motor bracket, and the elastic lock is matched with the motor bracket, and the elastic lock limits the movement of the motor bracket.

[0009] In a preferred technical solution, a strip groove is provided on the hinge housing at a position corresponding to the sliding bracket, and the inner movable arm and the sliding bracket are connected through the strip groove.

[0010] In the preferred technical solution, a vertical groove is provided on the hinge housing perpendicular to the moving direction of the inner movable arm; the elastic lock includes: a limiting part and an elastic part, and the limiting part moves up to the top of the vertical groove through the elastic force of the elastic part and conflicts with the motor bracket.

[0011] In the preferred technical solution, a movable groove is provided on the inner movable arm, and a pin is passed through the hinge shell and the movable groove; when the inner movable arm reciprocates in the hinge shell, the pin reciprocates along the movable groove.

[0012] In the preferred technical solution, a linkage arm is further provided between the swing head and the inner movable arm, one end of the linkage arm is connected to the inner movable arm, and the other end is connected to the swing head.

[0013] In the preferred technical solution, the linkage arm comprises: a symmetrically arranged left linkage arm and a right linkage arm, and one end of the inner movable arm is inserted between the left linkage arm and the right linkage arm to stabilize the connection.

[0014] In a preferred technical solution, a slot is provided on the hinge housing corresponding to the position of the motor bracket, and the motor bracket moves linearly along the slot.

[0015] In the preferred technical solution, the motor bracket is integrally installed in the motor bracket and the slot body through a bracket pin, and the bracket pin triggers the elastic lock when moving along the slot body.

[0016] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial effects: the hinge of the present invention has two modes, electric operation and manual operation, which can meet different usage requirements. In the electric mode, it can adapt to the intelligent use of modern oven appliances, and in the manual mode, the oven can be manually closed when the power is off;

[0017] In addition, the product has a simple structure. In electric mode, the motor drives the sliding bracket to move back and forth to realize the electric opening / closing of the oven door; in manual mode, the motor overcomes the resistance of the elastic lock, and the motor and the sliding bracket move back and forth synchronously to realize the manual opening / closing of the oven door; it is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] Figure 3 It is an exploded schematic diagram of the motor, the sliding bracket and the hinge housing in the present invention;

[0022] Figure 4 It is a schematic diagram of the decomposition state of the present invention;

[0023] Figure 5 It is a schematic diagram of the hinge of the present invention when it is installed in an oven and is in a closed state;

[0024] Figure 6 A schematic diagram of the hinge of the present invention installed in an oven and opened in electric mode;

[0025] Figure 7 It is a cross-sectional schematic diagram of the hinge of the present invention when it is installed in an oven and is in a closed state;

[0026] Figure 8 This is a schematic diagram of the hinge of the present invention being installed in an oven and opened in manual mode. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "plurality" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] Manual and automatic electric oven door hinges, see Figure 1-4 As shown, it includes: a hinge housing 100, a swing head 200, an inner moving arm 300, a sliding bracket 400 and a motor 500.

[0031] The swing head 200 is rotatably connected to one end of the hinge housing 100, and the inner moving arm 300 is installed inside the hinge housing 100. When the swing head 200 swings around the connection with the hinge housing 100, the inner moving arm 300 moves back and forth linearly inside the hinge housing 100 accordingly;

[0032] In a further implementation scheme, a movable groove 310 is provided on the inner movable arm 300 , and a pin 320 is passed through the hinge housing 100 and the movable groove 310 ; when the inner movable arm 300 reciprocates in the hinge housing 100 , the pin 320 reciprocates along the movable groove 310 .

[0033] like Figure 3 As shown, the state of the swing head 200 at this time is in a closed state. When opening, the swing head 200 rotates counterclockwise, and during the rotation, the inner moving arm 300 moves to the left accordingly; when closing again, the swing head 200 rotates clockwise, and the inner moving arm 300 moves to the right accordingly. The rotation of the swing head 200 during the opening and closing process described here and the corresponding movement of the inner moving arm 300 are structures that general hinges have.

[0034] The hinge of the present invention is manual and automatic, and can be opened and closed electrically as well as manually. The switching between manual and electric opening and closing is achieved through the elastic lock 600.

[0035] Specifically, see Figure 2 and Figure 4 As shown, the hinge housing 100 is made of metal material, and one end of the swing head 200 is connected to one end of the hinge housing 100 through a rivet, and the rivet can be a biting rivet.

[0036] The sliding bracket 400 and the motor 500 are installed on the outside of the hinge housing 100. A strip groove 110 is opened on the hinge housing 100 corresponding to the sliding bracket 400. A groove body 120 is opened on the hinge housing 100 corresponding to the motor 500. The opening direction of the strip groove 110 and the groove body 120 is the moving direction of the inner moving arm 300.

[0037] The sliding bracket 400 and the inner moving arm 300 are connected through the strip-shaped groove 110 .

[0038] The motor 500 comprises a body 510 , a motor bracket 520 and a motor output shaft 530 , and the body 510 drives the motor output shaft 530 to rotate.

[0039] The motor output shaft 530 is a screw.

[0040] The sliding bracket 400 is provided with a screw hole 401, and the inner wall of the screw hole 401 is provided with a thread. The motor output shaft 530 is inserted into the screw hole 401 of the sliding bracket 400. When the motor 500 is running, the body 510 drives the screw to rotate, so that the sliding bracket 400 moves relative to the motor 500. The inner moving arm 300 is fixedly connected to the sliding bracket 400, and when the sliding bracket 400 moves, the inner moving arm 300 is driven to move. The movement of the inner moving arm 300 drives the swing head 200 to swing.

[0041] In a further implementation scheme, a mounting surface is formed on the sliding bracket 400, and the mounting surface is supported on the hinge housing 100, and a clamping plate 410 inserted into the strip groove 110 is formed downward on the mounting surface, and the clamping plate includes: a first clamping plate 411 and a second clamping plate 412, and the inner moving arm 300 is clamped between the first clamping plate 411 and the second clamping plate 412, and the sliding bracket 400 is fixedly connected to the inner moving arm 300 by a connecting member 420.

[0042] In a further embodiment, the connecting member 420 includes: a connecting plate with pins, a socket formed on the inner movable arm 300, the pins of the connecting plate are integrally inserted into the sliding bracket 400 and the sockets of the inner movable arm 300, and the connecting plate is locked to the sliding bracket 400 by screws.

[0043] Then, when the motor output shaft 530 of the motor 500 rotates, the sliding bracket 400 is driven to move along the strip groove 110 and the inner moving arm 300 is driven to move at the same time.

[0044] In a further embodiment, the sliding bracket 400 is provided with an edge wrapping 430 . When the sliding bracket 400 is installed on the hinge housing 100 , the edge of the hinge housing 100 is wrapped and installed in a wrapped shape, so that the installation of the sliding bracket 400 is more stable.

[0045] In this embodiment, the side of the hinge housing 100 where the sliding bracket 400 and the motor 500 are installed is set as the end face, and the other two sides are side faces. Then the strip groove 110 is opened on the end face of the hinge housing 100, and the groove body 120 is opened on the side face of the hinge housing 100.

[0046] The motor bracket 520 is mounted on the end surface of the hinge housing 100 , and the two sides of the motor bracket 520 also form edges corresponding to the two side surfaces of the hinge housing 100 , so that the motor bracket 520 can be stably mounted on the hinge housing 100 .

[0047] The motor 500 is installed on the outside of the hinge housing 100 through the motor bracket 520. The elastic lock 600 cooperates with the motor bracket to limit the movement of the motor bracket.

[0048] The motor bracket 520 is integrally installed in the motor bracket 520 and the slot body 120 through a bracket pin 521 , and the bracket pin 521 triggers the elastic lock 600 when moving along the slot body 120 .

[0049] A vertical slot 130 is provided on the hinge housing 100 perpendicular to the moving direction of the inner movable arm 300; the elastic lock 600 includes: a limiting portion 610 and an elastic portion 620, and the limiting portion 610 moves up to the top of the vertical slot 130 through the elastic force of the elastic portion 620, and conflicts with the bracket pin 521 of the motor bracket 520.

[0050] The inner moving arm 300 is connected to the swing head 200 through the linkage arm 700. One end of the linkage arm 700 is connected to the inner moving arm 300, and the other end is connected to the swing head 200. Then, during operation, the swing head 200 swings, and the linkage arm 700 and the inner moving arm 300 move in the hinge housing 100 accordingly.

[0051] In a further embodiment, the linkage arm 700 includes: a left linkage arm 710 and a right linkage arm 720 which are symmetrically arranged, and one end of the inner movable arm 300 is inserted between the left linkage arm 710 and the right linkage arm 720 to stabilize the connection.

[0052] The principles of the electric operation mode and the manual operation mode of the present invention are further explained below.

[0053] How the electric mode works:

[0054] See also Figure 5-6 As shown, the hinge is installed in an oven, and the oven has a box body 810 and a door body 820. In this embodiment, when installed, the hinge housing 100 is limited in the box body 810, and the swing head 200 is limited in the door body 820. When the swing head 200 rotates, the door body 820 opens and closes relatively.

[0055] Figure 5 In the embodiment, the door body 820 is in a closed state. At this time, the swing head 200 and the hinge housing 100 are approximately 90°. This angle is only a rough description, but is not limited to 90°.

[0056] The sliding bracket 400 is located on the right side of the strip groove 110, and the motor bracket 520 is located on the right side of the groove body 120. Figure 5 It can be seen that under the action of the elastic part 620, the elastic lock 600, the limiting part 610 is located at the upper end of the vertical slot 130, and conflicts with the bracket pin 521, and the bracket pin 521 limits the motor bracket 520 from moving left.

[0057] Specifically, in the present embodiment, the elastic lock 600 is limited by contact with the bracket pin 521 installed on the motor bracket 520 , but does not directly contact with the motor bracket 520 .

[0058] However, in some implementations, it may also interfere with the motor bracket 520 .

[0059] When opening, the motor 500 runs and the motor output shaft 530 rotates forward. When rotating, the sliding bracket 400 and the motor 500 produce relative movement. When rotating forward, the screw 530 drives the sliding bracket 400 to move left, and at the same time drives the linkage arm 700 to move left, drives the swing head 200 to rotate and open, so that the door body 820 is opened.

[0060] After the door 820 is opened, Figure 6 As shown, in the electric mode, the position of the motor 500 remains unchanged, and the sliding bracket 400 moves leftward along the strip groove 110 on the hinge housing 100. Figure 5 and Figure 6 After the door body 820 is opened, the length of the screw exposed to the outside increases because the motor 500 is fixed and the sliding bracket 400 moves to the left.

[0061] When closing, the motor 500 runs and the motor output shaft 530 rotates in the opposite direction. When rotating, the sliding bracket 400 and the motor 500 produce relative movement. When rotating in the opposite direction, the screw 530 drives the sliding bracket 400 to move right, and at the same time drives the linkage arm 700 to move right, drives the swing head 200 to rotate and close, and realizes the closing of the door body 820.

[0062] During the electric closing / opening process, the position of the motor 500 remains unchanged, and the motor 500 is limited by the elastic lock 600.

[0063] How manual mode works:

[0064] See also Figure 7-8As shown, the hinge is installed in an oven, and the oven has a box body 810 and a door body 820. In this embodiment, when installed, the hinge housing 100 is limited in the box body 810, and the swing head 200 is limited in the door body 820. When the swing head 200 rotates, the door body 820 opens and closes relatively.

[0065] Figure 7 In the embodiment, the door body 820 is in a closed state, the sliding bracket 400 is located on the right side of the strip groove 110, and the motor bracket 520 is located on the right side of the groove body 120. Figure 7 It can be seen that under the action of the elastic part 620, the elastic lock 600, the limiting part 610 is located at the upper end of the vertical slot 130, and conflicts with the bracket pin 521, and the bracket pin 521 limits the motor bracket 520 from moving left.

[0066] When the motor is not running, it is impossible for the sliding bracket 400 and the motor 500 to move relative to each other, and they can only move to the left or to the right synchronously.

[0067] When opening, the door body 820 is opened manually, thereby driving the swing head 200 to rotate. When the swing head 200 rotates, the linkage arm 700 and the inner moving arm 300 are pulled to move to the left synchronously. At the same time, the inner moving arm 300 transmits force to the sliding bracket 400 and the motor 500, so that the sliding bracket 400 and the motor 500 move to the left synchronously. When the motor 500 moves to the left, it needs to overcome the limiting force of the elastic lock buckle 600. Under the reaction force of the bracket pin 521, the elastic lock buckle 600 moves down a certain displacement, the bracket pin 521 is released, and the bracket pin 521 bypasses the elastic lock buckle 600 and moves to the left. After the bracket pin 521 moves to the left, the elastic lock buckle 600 is reset until the door body 820 is fully opened.

[0068] When closing, the door body 820 is manually closed, thereby driving the swing head 200 to rotate. When the swing head 200 rotates, the linkage arm 700 and the inner moving arm 300 are pulled to move right synchronously. At the same time, the inner moving arm 300 transmits force to the sliding bracket 400 and the motor 500, so that the sliding bracket 400 and the motor 500 move right synchronously. After the door body 820 is manually closed, the motor 500 moves right to the right end of the slot body 120, and the bracket pin 521 overcomes the limiting force of the elastic lock buckle 600 and moves to the right side of the elastic lock buckle 600, and the elastic lock buckle 600 limits the bracket pin 521 again.

[0069] During the manual closing / opening process, the relative distance between the motor 500 and the sliding bracket 400 remains unchanged, and the motor 500 and the sliding bracket 400 move left / right synchronously.

[0070] In the oven, the oven door is opened up and down, and a hinge is installed on both sides of the oven door, one of the hinges can adopt the manual-automatic electric oven door hinge of the present invention, and the other can adopt a high-load-bearing hinge with a buffer function.

[0071] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Manual and automatic electric oven door hinge, including: A hinge housing, a swing head swingably connected to one end of the hinge housing, and an inner moving arm installed inside the hinge housing; when the swing head swings around the connection with the hinge housing, the inner moving arm moves back and forth linearly inside the hinge housing accordingly; the characteristic is that: a motor and a sliding bracket are arranged on the hinge housing; the inner moving arm is fixedly connected to the sliding bracket; The motor and the sliding bracket can move linearly along the hinge housing, and an elastic lock for limiting the movement of the motor is provided on the hinge housing; In electric mode: the motor is fixed to the hinge housing by an elastic lock, and the motor drives the sliding bracket to move, so as to push the inner moving arm to move, thereby further realizing the swing of the swing head; In manual mode: the swing head swings under the action of external force to pull the inner moving arm to move, and further pull the sliding bracket and the motor to move synchronously in a straight line; when moving, the motor overcomes the resistance of the elastic lock and moves.

2. The manual-automatic electric oven door hinge according to claim 1, characterized in that: The motor has a motor output shaft, and the motor output shaft is a screw; The sliding bracket is formed with a screw hole for inserting the motor output shaft, and an internal thread is formed in the screw hole; when the motor output shaft rotates, it cooperates with the thread of the screw hole to drive the sliding bracket to move linearly along the hinge housing.

3. The manual-automatic electric oven door hinge according to claim 1, characterized in that: The motor is installed on the outside of the hinge housing through a motor bracket, and the elastic lock is matched with the motor bracket, and the elastic lock limits the movement of the motor bracket.

4. The manual-automatic electric oven door hinge according to claim 1, characterized in that: A strip groove is provided on the hinge housing at a position corresponding to the sliding bracket, and the inner moving arm and the sliding bracket are connected through the strip groove.

5. The manual-automatic electric oven door hinge according to claim 1, characterized in that: A vertical slot is provided on the hinge housing perpendicular to the moving direction of the inner moving arm; the elastic lock comprises a limiting part and an elastic part, the limiting part moves up to the top of the vertical slot through the elastic force of the elastic part and contacts the motor bracket.

6. The manual-automatic electric oven door hinge according to claim 1, characterized in that: The inner movable arm is provided with a movable groove, and a pin is penetrated through the hinge shell and the movable groove; when the inner movable arm reciprocates in the hinge shell, the pin reciprocates along the movable groove.

7. The manual-automatic electric oven door hinge according to claim 1, characterized in that: A linkage arm is also arranged between the swing head and the inner moving arm, one end of the linkage arm is connected to the inner moving arm, and the other end is connected to the swing head.

8. The manual-automatic electric oven door hinge according to claim 7, characterized in that: The linkage arm comprises: a left linkage arm and a right linkage arm which are symmetrically arranged, and one end of the inner movable arm is inserted between the left linkage arm and the right linkage arm to stabilize the connection.

9. The manual-automatic electric oven door hinge according to claim 1, characterized in that: A slot body is arranged on the hinge housing corresponding to the position of the motor bracket, and the motor bracket moves linearly along the slot body.

10. The manual-automatic electric oven door hinge according to claim 9, characterized in that: The motor bracket is integrally installed in the motor bracket and the slot body through a bracket pin, and the bracket pin triggers the elastic lock when moving along the slot body.

Images