CN106988648A - Lower sliding door mounting structure and cooking apparatus - Google Patents

Abstract

The invention relates to the field of home appliances, and discloses a drop-down door installation structure and a cooking appliance, wherein the drop-down door installation structure includes a front panel (10), a drop-down door (20), a first damping hinge (30) and a second damping hinge ( 40), the drop-down door is pivotably connected to the front panel through a first damping hinge and a second damping hinge respectively, the first damping hinge includes a first damper (31), and the second damping hinge includes a second damper (41) , the first damper and the second damper are set so that: when the pull-down door is in the open position, the first damper is in the working state and the second damper is in the stop working state; when the pull-down door is in the closed position, the first damper It is in a stopped state and the second damper is in a working state. The first damper and the second damper respectively provide buffering when the pull-down door reaches the close open position and the close position, thereby avoiding severe impact and noise generated when the pull-down door moves to the limit position.

Description

Drop-Down Door Mounting Structures and Cooking Appliances

technical field

The invention relates to the field of home appliances, in particular to a drop-down door installation structure and a cooking utensil.

Background technique

Cooking appliances with a baking function such as microwave ovens and ovens are widely popular. These cooking utensils all have sliding doors that can be opened. For the pull-down door structure that is opened in a pull-down manner, when the user uses the pull-down door to close the door, there is a problem that the pull-down door collides with the front panel. After opening, it accelerates the fall under the action of gravity and exerts a reaction force on the hinge and thus causes the problem of noise.

Contents of the invention

The object of the present invention is to provide a drop-down door installation structure which has a buffering effect for opening and closing the door in order to overcome the noise and impact problems of opening and closing doors in the prior art.

In order to achieve the above object, the present invention provides a drop-down door installation structure on the one hand, wherein the drop-down door installation structure includes a front panel, a drop-down door, a first damping hinge and a second damping hinge. The first damping hinge and the second damping hinge are pivotally connected to the front panel, the first damping hinge includes a first damper, the second damping hinge includes a second damper, and the first damping hinge includes a second damper. A damper and a second damper are arranged such that: when the pull-down door is in the open position, the first damper is in the working state and the second damper is in the stop working state; when the pull-down door is in the closed position , the first damper is in a stop working state and the second damper is in a working state.

Preferably, the drop-down door is parallel to the front panel when it is in the closed position, and pivots 90° relative to the front panel when the drop-down door is in the open position.

Preferably, the first damper is arranged to work in the area where the pull-down door pivots from the open position relative to the front panel by 0-30° and the closer the first damper is to the open position and/or the second damper is arranged to work in the area where the drop-down door pivots from the closed position relative to the front panel by 0-25° and the closer it is to the closed position The damping effect of the second damper is increased.

Preferably, the drop-down door mounting structure includes a first return spring for biasing the drop-down door in an open position and a second return spring for biasing the drop-down door in a closed position.

Preferably, the first damping hinge includes a first mounting frame and a first hinge that hinges the drop-down door and the front panel, the first mounting frame is provided with a first mounting portion close to the drop-down door, so The first damper is installed on the first mounting part; the second damping hinge includes a second mounting frame and a second hinge that hinges the drop-down door and the front panel, and the second mounting frame is provided with a relatively The first installation part is far away from the second installation part of the drop-down door, and the second damper is installed on the second installation part.

Preferably, the first hinge includes a first moving part connected to the drop-down door, a first fixed part relatively fixed to the front panel, and a second hinged part respectively hinged to the first moving part and the first fixed part. A connecting part, the first fixing part is provided with a first chute for guiding the movement of the first connecting part, the first damper is arranged on the side of the first connecting part, and the first connecting part There is a first touch piece protruding from the side for touching the first damper on the part; the second hinge includes a second moving part connected with the drop-down door, and a relatively fixed part with the front plate The second fixed part and the second connecting part which are respectively hinged with the second moving part and the second fixed part, the second fixing part is provided with a second chute guiding the movement of the second connecting part, and The second damper is disposed on the side of the second connecting portion, and the second connecting portion is provided with a second trigger protruding from the side for actuating the second damper.

Preferably, the first fixing part is plate-shaped, and the first mounting bracket includes a first mounting plate parallel to and fixed to the first fixing part and a first support plate perpendicular to the first mounting plate, The first mounting part is a plate-shaped member perpendicular to the first mounting plate and the first supporting plate, and the extension direction of the first damper is inclined to the plate surface of the first mounting part and parallel to the The first mounting plate; the second fixing portion is plate-shaped, and the second mounting bracket includes a second mounting plate parallel and fixed to the second fixing portion and a second support perpendicular to the second mounting plate plate, the second mounting part is a plate-shaped member perpendicular to the second mounting plate and the second supporting plate, and the extension direction of the second damper is inclined to the plate surface of the second mounting part and parallel to the second mounting plate.

The present invention also provides a cooking appliance, wherein the cooking appliance includes the drop-down door installation structure of the present invention.

Preferably, the cooking appliance is a microwave oven or an oven.

Preferably, the cooking appliance includes a base plate, and the front plate, the first damping hinge and the second damping hinge are respectively installed on the base plate.

Preferably, the cooking appliance includes a cooking cavity, and the first damping hinge and the second damping hinge are respectively located on two sides of the cooking cavity.

Through the above technical solution, the first damper and the second damper can respectively provide buffering when the pull-down door reaches the close open position and the close position, so as to avoid the severe impact caused when the pull-down door moves to the limit position at a constant speed or even accelerates. This results in noise.

Description of drawings

1 is a perspective view illustrating an embodiment of the installation structure of the pull-down door of the present invention, wherein the pull-down door is moved so that the first damper is in a stopped state and the second damper is in an active state;

Fig. 2 is a perspective view of another position of the installation structure of the drop-down door in Fig. 1, when the drop-down door moves to make the first damper in the working state and the second damper in the stop working state;

Fig. 3 is a top view of the installation structure of the drop-down door of Fig. 1 in a closed state;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is the right view of Fig. 3;

Fig. 6 is a top view of the installation structure of the drop-down door of Fig. 1 in an open state;

Fig. 7 is the left view of Fig. 6;

Fig. 8 is the right side view of Fig. 6;

Fig. 9 is a perspective view of the first hinge in Fig. 1;

Fig. 10 is a perspective view of the first mounting bracket in Fig. 1;

Fig. 11 is a perspective view of the second hinge in Fig. 1;

FIG. 12 is a perspective view of the second mounting bracket in FIG. 1 .

Explanation of reference signs

10-front panel, 20-pull down door, 30-the first damping hinge, 31-the first damper, 32-the first installation frame, 321-the first installation part, 322-the first installation plate, 323-the first support Plate, 33-the first hinge, 331-the first moving part, 332-the first fixed part, 332a-the first chute, 333-the first connecting part, 333a-the first actuating member, 40-the second damping hinge, 41-second damper, 42-second mounting bracket, 421-second mounting part, 422-second mounting plate, 423-second support plate, 43-second hinge, 431-second moving part, 432- The second fixing part, 432a-the second chute, 433-the second connecting part, 433a-the second contact member, 50-the bottom plate.

detailed description

In the present invention, in the case of no contrary description, the used orientation words such as "up, down, left and right" usually refer to the up, down, left and right shown in the accompanying drawings; "inside and outside" Refers to the inside and outside of the outline of each part itself.

According to one aspect of the present invention, a drop-down door installation structure is provided, wherein the drop-down door installation structure includes a front panel 10, a drop-down door 20, a first damping hinge 30 and a second damping hinge 40, and the drop-down door 20 is Both sides are pivotally connected to the front panel 10 through the first damping hinge 30 and the second damping hinge 40 respectively, the first damping hinge 30 includes a first damper 31, and the second damping hinge 40 Including the second damper 41, the first damper 31 and the second damper 41 are set so that: when the drop-down door 20 is in the open position, the first damper 31 is in the working state and the second damper When the pull-down door 20 is in the closed position, the first damper 31 is in a stopped state and the second damper 41 is in a working state.

Using the installation structure of the pull-down door of the present invention, the first damper 31 and the second damper 41 can respectively provide buffering when the pull-down door 20 reaches the positions close to the open position and the closed position, thereby avoiding that the pull-down door 20 moves at a constant speed or even accelerates. The severe impact and the resulting noise when reaching the limit position (ie open position and closed position).

Wherein, the first damper 31 is in the working state at the closed position, indicating that the first damper 31 can provide a buffering effect in the closed position, and similarly, the second damper 41 can provide a buffering effect in the open position. However, the first damper 31 can start to work when it reaches the closed position to provide a buffering effect. Similarly, the second damper 41 can start to work when it reaches the open position to provide a buffering effect. Preferably, in order to further avoid impact and noise, the first damper 31 can be set to start to provide a buffering effect in a certain area when the pull-down door 20 moves close to the closed position. 20 moves to a certain area close to the open position and begins to provide a cushioning effect.

Wherein, the area close to the limit position to which the pull-down door 20 needs to move can be selected according to the moving range of the pull-down door 20 . In order to facilitate the operation after opening and take into account the compactness of the structure, preferably, as shown in FIGS. When pivoting 90° relative to the front plate 10.

In addition, in order to utilize the gravity and inertia of the drop-down door 20 during the opening process, there may be no buffer zone between the drop-down door 20 from the open position to the closed position, that is, neither the first damper 31 nor the second damper 41 provides buffered area. Therefore, the operating areas of the first damper 31 and the second damper 41 can be selectively set. Specifically, the first damper 31 is set to work in the area where the pull-down door 20 pivots from the open position to 0-30° with respect to the front panel 10 and the closer to the open position the first damper 31 works. The damping effect of a damper 31 is increased, and/or the second damper 41 is arranged to work in the region where the drop-down door 20 pivots from the closed position relative to the front panel 10 by 0-25° And the buffering effect of the second damper 41 increases as it gets closer to the open position.

In addition, preferably, the drop-down door installation structure includes a first return spring for biasing the drop-down door 20 in an open position and a second return spring for biasing the drop-down door 20 in a closed position. In this way, the cushioning effect of the first damper 31 and the second damper 41 close to the corresponding limit position can be realized automatically when the operation is close to the corresponding limit position. Wherein, the first return spring and the second return spring can be arranged in various appropriate ways, as long as they can respectively provide biasing forces to the open position and the closed position. For example, the first return spring and the second return spring can be respectively installed on the first damping hinge 30 and the second damping hinge 40 (for example, the first fixing part 332 and the second fixing part 432 hereinafter).

Specifically, in the illustrated embodiment, as shown in FIG. 1 , the drop-down door 20 is located at a position pivoting 25° from the closed position, and as shown in FIG. 2 , the drop-down door 20 is located at a position pivoting 30° from the open position. . When the pull-down door 20 is opened from the closed position to the position shown in FIG. 1 , the first damper 31 does not work, and the buffering effect of the second damper 41 gradually weakens, because the second damper 41 provides a boost to pull the pull-down door 20 open. , when opening the drop-down door 20 from the closed position, you only need to pull it slightly; during the process of continuing to open from the position shown in Figure 1, the first damper 31 and the second damper 41 are not working, and the pull-down door 20 can be voluntarily driven by gravity. Open; from the position shown in Figure 2 to the open position, the second damper 41 does not work, and the buffering effect of the first damper 31 increases gradually to prevent the pull-down door 20 from falling quickly to the open position and related components (such as the following second) First hinge 33 and second hinge 43) produce excessive active force and affect the life of this part. Wherein, after the second damper 41 does not work, the force of the user pulling the pull-down door 20 can be weakened until the position shown in FIG. Cushioning is provided by the first damper 31 to slowly open into place.

Conversely, when the pull-down door 20 is closed from the open position to the position shown in FIG. Power assist, when closing the pull-down door 20 from the open position, you only need to push slightly; when continuing to close from the position shown in Figure 2, the first damper 31 and the second damper 41 do not work; from the position shown in Figure 1 to In the closed position, the first damper 31 does not work, and the buffering effect of the second damper 41 gradually increases to prevent the drop-down door 20 from rapidly closing and hitting the front panel 10 and the resulting noise. Wherein, after reaching an area close to the closed position (such as reaching the position shown in FIG. 1 ), the user can let go, so that the pull-down door 20 can automatically move towards the closed position under the action of the second return spring, and pass through the second damper 41. Provides cushioning to slowly close into place.

In addition, in order to realize the function of the hinge and facilitate the assembly of the corresponding damper, as shown in FIGS. The first hinge 33, the first mounting frame 32 is provided with a first mounting portion 321 close to the drop-down door, the first damper 31 is mounted on the first mounting portion 321; the second damping hinge 40 includes a second mounting frame 42 and a second hinge 43 that hinges the drop-down door 20 and the front panel 10, and the second mounting frame 42 is provided with a hinge that is farther away from the drop-down door 20 than the first mounting portion 321. The second installation part 421 , the second damper 41 is installed on the second installation part 421 . Wherein, as shown in FIG. 10 and FIG. 12 , the first installation part 321 and the second installation part 421 may be provided with corresponding assembly holes for fixed installation of the first damper 31 and the second damper 41 .

In addition, the first hinge 33 and the first mounting bracket 32 can be provided in a suitable form to install and activate the first damper 31 when the drop door 20 is moved to a desired position. Likewise, the second hinge 43 and the second mounting bracket 42 can be provided in a suitable form for mounting and triggering the second damper 41 when the drop door 20 is moved to a desired position. Specifically, as shown in Fig. 4, Fig. 5, Fig. 7, Fig. 8, Fig. 9 and Fig. 11, the first hinge 33 includes a first moving part 331 connected to the drop-down door 20, a first moving part 331 connected to the front plate 10 The relatively fixed first fixed part 332 and the first connecting part 333 hinged to the first moving part 331 and the first fixed part 332 respectively, the first fixing part 332 is provided with guides for guiding the first connecting part 333 to move the first chute 332a, the first damper 31 is set on the side of the first connecting part 333, and the first connecting part 333 is provided with protruding from the side for touching the first The first touch piece 333a of a damper 31; the second hinge 43 includes a second moving part 431 connected to the drop-down door 20, a second fixed part 432 relatively fixed to the front panel 10, and a second fixed part 432 connected to the front panel 10 respectively. The second moving part 431 and the second fixing part 432 are hinged to the second connecting part 433, the second fixing part 432 is provided with a second sliding groove 432a guiding the movement of the second connecting part 433, the second The damper 41 is disposed on the side of the second connecting portion 433 , and the second connecting portion 433 is provided with a second actuating member 433 a protruding from the side for actuating the second damper 41 . Thus, when the first moving part 331 moves under the drive of the pull-down door 20, it will drive the first connecting part 333 to move in the first chute 332a. During the movement of the first connecting part 333, when the first touch The contact of the element 333a to the first damper 31 triggers the cushioning of the first damper 31 . Similarly, when the second moving part 431 moves under the drive of the pull-down door 20, it will drive the second connecting part 433 to move in the second chute 432a. During the movement of the second connecting part 433, when the second touch The part 433a contacts the second damper 41 to trigger the buffering of the second damper 41 .

In addition, in order to have the same positioning basis, it is preferable to fix the first mounting frame 32 and the first fixing part 332 . For convenience of fixing, the first fixing portion 332 is plate-shaped, and the first mounting frame 32 includes a first mounting plate 322 parallel to and fixed to the first fixing portion 332 and a mounting plate 322 perpendicular to the first mounting plate 322. The first supporting plate 323, the first mounting portion 321 is a plate-like member perpendicular to the first mounting plate 322 and the first supporting plate 323. In addition, the extension direction of the first damper 31 can be inclined to the plate surface of the first mounting part 321 and parallel to the first mounting plate 322, so as to take into account the buffering effect of the first damper 31 and save the second An arrangement space of a damper 31 in the direction in which it provides a cushioning effect. Similarly, the second fixing portion 432 is plate-shaped, and the second mounting bracket 42 includes a second mounting plate 422 parallel and fixed to the second fixing portion 432 and a second mounting plate 422 perpendicular to the second mounting plate 422. The second support plate 423, the second installation part 421 is a plate-shaped member perpendicular to the second installation plate 422 and the second support plate 423, the extension direction of the second damper 41 is inclined to the second A board surface of the installation portion 421 is parallel to the second installation board 422 .

According to another aspect of the present invention, a cooking appliance is provided, wherein the cooking appliance includes the drop-down door installation structure of the present invention.

Wherein, the cooking utensil of the present invention can be in various specific forms, as long as it has the pull-down door 20 . For example, the cooking appliance may be a microwave oven or an oven.

In addition, according to the specific structure of the cooking appliance, each component of the installation structure of the drop-down door may have a corresponding installation base. For example, in the embodiment shown in FIG. 1 and FIG. 2 , the cooking appliance includes a bottom plate 50 , and the front plate 10 , the first damping hinge 30 and the second damping hinge 40 are installed on the bottom plate 50 respectively.

In addition, for a cooking appliance with a cooking cavity such as a microwave oven or an oven, preferably, the first damping hinge 30 and the second damping hinge 40 are respectively located on both sides of the cooking cavity, so as to avoid affecting the cooking cavity. volume design.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention. The present invention includes various specific technical features combined in any suitable manner. In order to avoid unnecessary repetition, various possible combinations are not further described in the present invention. However, these simple modifications and combinations should also be regarded as the content disclosed by the present invention, and all belong to the protection scope of the present invention.

Claims (11)

1. A drop-down door installation structure, characterized in that, the drop-down door installation structure comprises a front plate (10), a drop-down door (20), a first damping hinge (30) and a second damping hinge (40), the The drop-down door (20) is pivotally connected to the front panel (10) on both sides through the first damping hinge (30) and the second damping hinge (40), and the first damping hinge (30) A first damper (31) is included, the second damper hinge (40) includes a second damper (41), and the first damper (31) and the second damper (41) are set to: in the When the pull-down door (20) is in the open position, the first damper (31) is in working condition and the second damper (41) is in the stop working condition; when the pull-down door (20) is in the closed position, The first damper (31) is in a stopped working state and the second damper (41) is in a working state. 2. The installation structure of the drop-down door according to claim 1, characterized in that, when the drop-down door (20) is in the closed position, it is parallel to the front panel (10), and when the drop-down door (20) is in the open position, it is parallel to the front panel (10). Pivots 90° relative to said front plate (10). 3. The installation structure of the pull-down door according to claim 2, characterized in that, the first damper (31) is arranged to be positioned relative to the front panel (10) when the pull-down door (20) is opened from the open position. ) works in the region of 0-30° of pivoting and the cushioning effect of the first damper (31) increases closer to the open position, and/or, the second damper (41) is set to The drop-down door (20) works in a pivoting range of 0-25° relative to the front panel (10) from the closed position and the buffering effect of the second damper (41) increases as it gets closer to the closed position. 4. The installation structure of the drop-down door according to claim 1, characterized in that, the installation structure of the drop-down door comprises a first return spring for biasing the drop-down door (20) in the open position and a A second return spring biases the drop down door (20) in the closed position. 5. The installation structure for the drop-down door according to any one of claims 1-4, characterized in that, the first damping hinge (30) comprises a first mounting bracket (32) and a hinged hinge for the drop-down door (20) With the first hinge (33) of the front panel (10), the first installation frame (32) is provided with a first installation part (321) close to the drop-down door, and the first damper (31) Installed on the first mounting part (321); the second damping hinge (40) includes a second mounting frame (42) and a second hinge that hinges the drop-down door (20) and the front panel (10) (43), the second installation frame (42) is provided with a second installation part (421) farther away from the drop-down door (20) than the first installation part (321), and the second damper (41 ) is installed on the second installation part (421). 6. The installation structure of the drop-down door according to claim 5, characterized in that, the first hinge (33) comprises a first moving part (331) connected with the drop-down door (20), connected with the front plate (10) a relatively fixed first fixed part (332) and a first connecting part (333) hinged to the first moving part (331) and the first fixed part (332) respectively, the first fixed part ( 332) is provided with a first chute (332a) to guide the movement of the first connecting part (333), and the first damper (31) is arranged on the side of the first connecting part (333), so The first connecting part (333) is provided with a first touch piece (333a) protruding from the side for touching the first damper (31); the second hinge (43) includes a The second moving part (431) connected to the door (20), the second fixed part (432) relatively fixed with the front panel (10), and the second moving part (431) and the second fixed part ( 432) a hinged second connecting part (433), the second fixing part (432) is provided with a second sliding slot (432a) guiding the movement of the second connecting part (433), and the second damper (41) is arranged on the side of the second connecting part (433), and the second connecting part (433) is provided with a second protruding from the side for touching the second damper (41). Actuator (433a). 7. The installation structure for the drop-down door according to claim 6, characterized in that, the first fixing part (332) is plate-shaped, and the first mounting bracket (32) includes a ) parallel and fixed first mounting plate (322) and the first support plate (323) perpendicular to the first mounting plate (322), the first mounting part (321) is perpendicular to the first mounting plate (322) and a plate-like member of the first support plate (323), the extension direction of the first damper (31) is inclined to the plate surface of the first mounting part (321) and parallel to the first Mounting plate (322); the second fixing portion (432) is plate-shaped, and the second mounting frame (42) includes a second mounting plate (422) parallel and fixed to the second fixing portion (432) And the second support plate (423) perpendicular to the second installation plate (422), the second installation part (421) is perpendicular to the second installation plate (422) and the second support plate (423) The extension direction of the second damper (41) is inclined to the plate surface of the second installation part (421) and parallel to the second installation plate (422). 8. A cooking appliance, characterized in that the cooking appliance comprises the drop-down door installation structure according to any one of claims 1-7. 9. The cooking appliance according to claim 8, characterized in that, the cooking appliance is a microwave oven or an oven. 10. The cooking appliance according to claim 9, characterized in that the cooking appliance comprises a bottom plate (50), the front plate (10), the first damping hinge (30) and the second damping hinge (40) are respectively Installed on the base plate (50). 11. The cooking appliance according to claim 9, characterized in that the cooking appliance comprises a cooking cavity, and the first damping hinge (30) and the second damping hinge (40) are respectively located at the sides of the cooking cavity. sides.