Turnover plate rotating hinge mechanism for kitchen product and kitchen product

Abstract

The utility model relates to a turning plate rotating hinge mechanism for a kitchen product and the kitchen product, the turning plate rotating hinge mechanism is used for rotatably connecting a turning plate to a product main body, and the turning plate rotating hinge mechanism comprises a mounting bracket which is fixed relative to the product main body and is provided with an arc-shaped slideway of which the end part is provided with a mounting opening; the arc-shaped supporting arm is in a circular arc shape, the curvature radius of the arc-shaped supporting arm is consistent with that of the arc-shaped sliding way, the arc-shaped supporting arm is slidably arranged in the arc-shaped sliding way of the installation support in a position-adjustable mode, and one end of the arc-shaped supporting arm is exposed out of an installation opening of the arc-shaped sliding way to be connected with the turning plate; and the arc-shaped support arm adjusts the rotation angle of the turning plate along with the change of the position of the arc-shaped support arm relative to the mounting bracket. The utility model has the advantages of effectively improving the problem of a gap between the turning plate and the to-be-mounted component and improving the product delicacy.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen products, in particular to a flap rotating hinge mechanism for kitchen products and a kitchen product. Background Art

[0002] Kitchen products such as cabinets, kitchen islands or range hoods often have a plate body that can be flipped open and closed (such as the door body of a cabinet or the smoke baffle or panel of a range hood). The plate body is usually connected to the product main body through a hinge mechanism. For the plate body installed through a conventional hinge structure, in order to avoid interference problems during the rotation process, a certain gap needs to be reserved during the assembly of the plate body, which has a certain impact on the overall aesthetics of the product. For some special products, taking a range hood as an example, the rotation of the smoke baffle of the range hood is basically a fixed-axis rotation centered on the hinge shaft. When the smoke baffle is installed, a gap is reserved between it and the upper panel of the range hood. After the smoke baffle opens the air inlet, there is a large gap between the front sides of the smoke baffle panels, which will cause oil fume to escape and cause trouble to users. On the contrary, there will also be a large gap between the bottom of the upper panel after the smoke baffle is closed, reducing the delicacy of the product. For example, the Chinese utility model patent "A Near-Suction Range Hood" with the patent number ZL201721290314.5 (the authorized announcement number is CN207539970U) discloses this structure.

[0003] Therefore, the existing flap rotating hinge mechanism for kitchen products still needs to be further improved. Summary of the Utility Model

[0004] The first technical problem to be solved by the utility model is to provide a flap rotating hinge mechanism for kitchen products that can effectively improve the gap problem between the flap and the component to be installed and improve the delicacy of the product according to the current situation of the prior art.

[0005] The second technical problem to be solved by the utility model is to provide a kitchen product applying the above flap rotating hinge mechanism according to the current situation of the prior art.

[0006] The technical solution adopted by the utility model to solve the above first technical problem is: a flap rotating hinge mechanism for kitchen products, which is used to rotatably connect a flap to a product main body. The flap rotating hinge mechanism includes:

[0007] An installation bracket, which is fixed relative to the product main body and has an arc-shaped slideway with an installation opening formed at the end;

[0008] The arc-shaped support arm is arc-shaped and has the same curvature radius as the arc-shaped slideway. The arc-shaped support arm is slidably arranged in the arc-shaped slideway of the mounting bracket in a position-adjustable manner. One end of the arc-shaped support arm protrudes out of the mounting opening of the arc-shaped slideway and is connected to the flap. The arc-shaped support arm adjusts the rotation angle of the flap as its position relative to the mounting bracket changes.

[0009] The rotation of the flap can be manually operated or achieved through a driving device. When the opening process of the flap is manually operated, it is usually necessary to fix and hold the flap at a set opening angle. For this purpose, a locking pin assembly is further included, which is arranged between the mounting bracket and the arc-shaped support arm and is used to lock and unlock the relative movement of the two to a set position.

[0010] In order to simplify the structure of the locking pin assembly and reduce production costs, the locking pin assembly includes a limit pin slidably penetrating through the mounting bracket horizontally. The limit pin includes a large shaft section and a small shaft section formed in sequence along its axial direction. An avoidance chute is formed on the arc-shaped support arm along its length direction, and a limit hole communicating with the avoidance chute is formed. The outer diameter of the small shaft section of the limit pin is adapted to the width dimension of the avoidance chute and can slide along the avoidance chute. The size of the limit hole is larger than the width dimension of the avoidance chute and is adapted to the large shaft section of the limit pin. The limit pin can move axially to a first position and a second position. In the state where the limit pin is in the first position, the large shaft section of the limit pin is inserted into the limit hole of the arc-shaped support arm to limit the relative movement of the arc-shaped support arm with respect to the mounting bracket. In the state where the limit pin is in the second position, the large shaft section of the limit pin withdraws from the limit hole of the arc-shaped support arm, and the small shaft section of the limit pin is displaced into the avoidance chute to allow the arc-shaped support arm to move relative to the mounting bracket.

[0011] In order to enable the limit pin to automatically snap into the limit hole to achieve automatic locking when the arc-shaped support arm moves to a set position, the locking pin assembly further includes an elastic member, which acts on the limit pin, so that the large shaft section of the limit pin always has a tendency to move towards the limit hole of the arc-shaped support arm and snap into it.

[0012] The above elastic member can adopt various existing technologies and can include various elastic elements such as compression springs, torsion springs, and spring sheets. However, in order to better cooperate with the above limit pin, a limit stop portion is provided at one end of the limit pin close to the small shaft section. The elastic member is a spring sleeved on the small shaft section, and the spring abuts between the outer side wall of the mounting bracket and the limit stop portion.

[0013] In order to enable the flap to be selectively held at multiple open angles, one end of the arc-shaped arm connected to the flap is denoted as the first end, and the other end is denoted as the second end. At least a part of the arc-shaped arm adjacent to its second end has at least two limiting holes arranged in sequence along the length direction of the avoidance chute. Considering that the flap rotation hinge mechanism is basically arranged inside the product main body, in order to facilitate the opening of the flap, no limiting holes may be provided at the front end (i.e., the first end) of the arc-shaped arm to avoid the problem of being unable to open.

[0014] As an improvement, the arc-shaped arm is integrally flat and includes two arc-shaped plates arranged oppositely and joined on one side. The avoidance chutes are provided on both of the two arc-shaped plates, and the limiting holes are opened on one of the two arc-shaped plates. The above-mentioned arc-shaped arm has the limiting holes opened only on one of its arc-shaped plates, so that the lock pin assembly can be structurally reinstalled when limiting is not desired.

[0015] In order to ensure the stability of the relative movement between the arc-shaped arm and the mounting bracket, the arc-shaped arm is integrally flat, and two bearing members sleeved on the limiting pins and located on both sides of the arc-shaped arm are further arranged in the arc-shaped slideway.

[0016] In order to ensure that the hinge mechanism has a sufficient opening stroke, the lock pin assembly is arranged on the mounting bracket adjacent to the mounting opening of the mounting bracket.

[0017] The technical solution adopted by the present utility model to solve the above second technical problem is: a kitchen product, including a product main body and a flap rotatably connected to the product main body, and the flap is connected to the product main body through the above-mentioned flap rotation hinge mechanism.

[0018] As an improvement, the kitchen product is one of an island counter, a cabinet and a range hood.

[0019] Compared with the prior art, the advantages of the present utility model are: the flap rotation hinge mechanism adopts a sliding fit mode of a mounting bracket and an arc-shaped arm. Among them, the arc-shaped arm is circular arc-shaped, and the curvature radius is consistent with the arc-shaped slideway of the mounting bracket. Thus, the movement track of the arc-shaped arm (or the flap) can be limited, so that when the flap generates the same movement track as the existing movement hinge, it is not necessary to provide the rotating shaft of the existing movement hinge. When the flap is opened and closed, it can be seamlessly spliced with the product main body in appearance. In the preferred solution, the flap rotation hinge mechanism further limits and locks the mounting bracket and the arc-shaped arm through the lock pin assembly, so that the flap can stop at one or more positions desired by the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the flap rotation hinge mechanism of the embodiment of the present utility model;

[0021] Figure 2 The front view of the flap rotating hinge mechanism according to the embodiment of the present utility model;

[0022] Figure 3 The front view of the flap rotating hinge mechanism according to the embodiment of the present utility model (the arc-shaped bracket extends a section relative to the mounting bracket);

[0023] Figure 4 is Figure 2 The cross-sectional view at A-A in (the limit pin is in the first position);

[0024] Figure 5 is Figure 2 The cross-sectional view at A-A in (the limit pin is in the second position);

[0025] Figure 6 The three-dimensional structure schematic diagram of the kitchen product according to the embodiment of the present utility model (taking the kitchen island as an example, the flap is in the closed state);

[0026] Figure 7 The three-dimensional structure schematic diagram of the kitchen product according to the embodiment of the present utility model (taking the kitchen island as an example, the flap is in the open state). Detailed implementation manners

[0027] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present utility model. However, these terms are used only for the convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed by the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0029] Figures 1-7 A preferred embodiment of a flap rotating hinge mechanism for a kitchen product and a kitchen product of the present utility model is shown. The flap rotating hinge mechanism for a kitchen product is used to rotatably connect a flap 61 to a product main body, and the flap rotating hinge mechanism includes a mounting bracket 10, an arc-shaped arm 20, and a locking pin assembly.

[0030] The installation bracket 10 is integrally arc-shaped, on which an arc-shaped slideway 11 is defined, and an installation opening 110 is formed at the end of the arc-shaped slideway 11. The installation bracket 10 is provided with a first installation part 12 at one end far from the installation opening 110. Specifically, the first installation part 12 can be designed as a bent plate structure that is folded from the main body of the installation bracket 10 to the side, and the bent plate can be fixed to the product main body by screws. The installation bracket 10 is also provided with a laterally penetrating installation hole near its installation opening 110, and the installation hole can be used to assemble the above-mentioned lock pin assembly.

[0031] The arc-shaped support arm 20 is also arc-shaped, and the radius of curvature is the same as that of the arc-shaped slideway 11 of the installation bracket 10. The end of the arc-shaped support arm 20 connected to the flap 61 is denoted as the first end, and the other end is denoted as the second end. Among them, the first end of the arc-shaped support arm 20 is provided with a second installation part 25, and the second installation part 25 can also be designed as a bent plate structure that is folded from the main body of the arc-shaped support arm 20 to the side, and the bent plate can be fixed to the flap 61 by screws. The arc-shaped support arm 20 of this embodiment is integrally flat, and specifically includes two oppositely arranged arc-shaped plates. The side edges of the two arc-shaped plates on the same side are connected together, so that the cross-section of the arc-shaped support arm 20 is a "flat" U-shaped structure. Avoidance sliding grooves 23 are provided on both arc-shaped plates, and the two avoidance sliding grooves 23 are opposite to each other and are both arc-shaped grooves consistent with the bending direction of the arc-shaped support arm 20. The two arc-shaped plates are respectively denoted as the first arc-shaped plate 21 and the second arc-shaped plate 22, and a limiting hole 24 communicating with the avoidance sliding groove 23 is opened on the first arc-shaped plate 21. The limiting hole 24 can allow the large shaft section 41 of the limiting pin 40 in the lock pin assembly to be inserted therein.

[0032] In this embodiment, a plurality of limiting holes 24 are provided on the first arc-shaped plate 21 of the arc-shaped support arm 20, and the plurality of limiting holes 24 are arranged in sequence along the length direction of the avoidance sliding groove 23. Specifically, the plurality of limiting holes 24 are only opened on the part near the second end of the arc-shaped support arm 20, mainly considering that the flap rotary hinge mechanism is basically arranged inside the product main body. Not setting the limiting holes 24 at the front end (i.e., the first end) of the arc-shaped support arm 20 can avoid the problem of being unable to open, which facilitates the initial opening of the flap 61.

[0033] The locking pin assembly of this embodiment includes a limiting pin 40 slidably inserted laterally through the mounting hole of the mounting bracket 10 and an elastic member. The limiting pin 40 includes a large shaft section 41 and a small shaft section 42 formed in sequence along its axial direction. Among them, the end of the large shaft section 41 has a radially protruding head 44, which can perform axial limit with the mounting hole on the mounting bracket 10. A limiting stop portion 43 is provided at the end of the small shaft section 42 of the limiting pin 40, and the limiting stop portion 43 can be an annular stop member connected to the end of the small shaft section 42 of the limiting pin 40 by riveting. The outer diameter of the small shaft section 42 of the limiting pin 40 is adapted to the width dimension of the avoidance chute 23 and can slide along the avoidance chute 23. The size of the limiting hole 24 is larger than the width dimension of the avoidance chute 23 and is adapted to the large shaft section 41 of the limiting pin 40. A spring 50 is sleeved on the small shaft section 42 of the limiting pin 40 as the elastic member. The spring 50 abuts between the outer side wall of the mounting bracket 10 and the limiting stop portion 43, so that the limiting pin 40 always has a tendency to move axially toward the side where the limiting stop portion 43 is located, that is, the large shaft section 41 of the limiting pin 40 always has a tendency to move toward the limiting hole 24 of the arc-shaped arm 20 and snap into it. More specifically, the limiting pin 40 can move axially to a first position and a second position. When the limiting pin 40 is in the first position state, the large shaft section 41 of the limiting pin 40 is inserted into the limiting hole 24 of the arc-shaped arm 20 to limit the relative movement of the arc-shaped arm 20 with respect to the mounting bracket 10; when the limiting pin 40 is in the second position state, the large shaft section 41 of the limiting pin 40 withdraws from the limiting hole 24 of the arc-shaped arm 20 to release the limit on the arc-shaped arm 20, and the small shaft section 42 of the limiting pin 40 is displaced into the avoidance chute 23. In this way, the arc-shaped arm 20 can move relative to the mounting bracket 10.

[0034] In order to ensure the stability of the relative movement between the arc-shaped arm 20 and the mounting bracket 10, two bearing members 30 sleeved on the limiting pin 40 are further provided in the arc-shaped slideway 11 of this embodiment. The two bearing members 30 are respectively located on the large shaft section 41 and the small shaft section 42 of the limiting pin 40 and are correspondingly located on both sides of the arc-shaped arm 20.

[0035] Since the limiting hole 24 is only provided on the first arc-shaped plate 21 of the arc-shaped arm 20, if the limiting shaft, the spring 50, the corresponding bearing and the limiting stop portion 43 are installed reversely, the hinge mechanism of this embodiment will not have a limiting function. When the flap 61 needs to apply two or more such hinge mechanisms, only one set of hinge mechanisms needs to be installed forward, and the other set of hinge mechanisms needs to be installed reversely, so that the purpose of fixed-angle positioning can be achieved, and the limiting can be controlled with one hand and the flap can be opened with the other hand, which is convenient for operation.

[0036] Since the limit pin 40 has a stepped shaft structure with a large shaft section 41 and a small shaft section 42 connected in sequence, when the limit pin 40 moves to the position of the limit hole 24, the large shaft section 41 of the limit pin 40 can enter the limit hole 24 under the action of the spring 50, so as to achieve the limit effect and keep the flap 61 at the corresponding opening angle. If you want to re-adjust the opening angle of the flap 61 or close the flap 61, just press the limit pin 40 to make the large shaft section 41 exit the limit hole 24.

[0037] The flap rotating hinge mechanism of this embodiment adopts the way of sliding cooperation between the mounting bracket 10 and the arc-shaped support arm 20. Among them, the arc-shaped support arm 20 is arc-shaped, and the radius of curvature is the same as that of the arc-shaped slideway 11 of the mounting bracket 10. Thus, the movement track of the arc-shaped support arm 20 (or the flap 61) can be limited, so that when the flap 61 generates the same movement track as the existing moving hinge, there is no need to set the rotating shaft of the existing moving hinge. When the flap 61 is opened and closed, it can be seamlessly spliced with the product main body in appearance.

[0038] The kitchen product of this embodiment can be one of an island counter, a cabinet and a range hood, such as Figure 6 and Figure 7 The structure of the island counter product is shown. The island counter includes an island counter main body 62, and a fan system can be arranged inside the island counter main body 62. The top of the island counter main body 62 has a cooking area 620, such as an induction cooker area where cookware can be placed. A smoke suction port 621 is arranged at the rear side of the top of the island counter main body 62, and a flap 61 that can be turned up and down is arranged at the smoke suction port 621. The left and right sides of the flap 61 can be respectively connected to the rear side wall of the island counter main body 62 through the flap rotating hinge mechanism 1. It can be imagined that when the kitchen product is a cabinet, the cabinet door can be connected to the cabinet main body through the flap rotating hinge mechanism. When the kitchen product is a range hood, the smoke baffle of the range hood can be connected to the body of the range hood through the flap rotating hinge mechanism.

Claims

1. A flap rotating hinge mechanism for a kitchen product, used to rotatably connect a flap (61) to a product body, characterized in that: The flap rotating hinge mechanism includes: A mounting bracket (10) is fixed relative to the product body and has an arc-shaped slideway (11) with a mounting opening (110) formed at an end thereof; The arc-shaped support arm (20) is in an arc shape, and the radius of curvature is consistent with the arc-shaped slideway (11). The arc-shaped support arm (20) is slidably arranged in the arc-shaped slideway (11) of the mounting bracket (10) in a positionally adjustable manner. One end of the arc-shaped support arm (20) is exposed from the mounting opening (110) of the arc-shaped slideway (11) and is connected to the flap (61). The arc-shaped support arm (20) adjusts the rotation angle of the flap (61) as its position relative to the mounting bracket (10) changes.

2. The flap rotating hinge mechanism for kitchen products according to claim 1, characterized in that: It also includes a lock pin assembly disposed between the mounting bracket (10) and the arc-shaped support arm (20) and used for locking and unlocking the two when they are relatively moved to a set position.

3. The flap rotating hinge mechanism for kitchen products according to claim 2, characterized in that: The locking pin assembly comprises a limit pin (40) which is slidably arranged on the mounting bracket (10) in a transverse direction, the limit pin (40) comprises a large shaft section (41) and a small shaft section (42) which are sequentially formed along the axial direction thereof, the arc-shaped support arm (20) is provided with an avoidance slide groove (23) arranged along its length direction and a limit hole (24) which is connected with the avoidance slide groove (23), the outer diameter of the small shaft section (42) of the limit pin (40) is adapted to the width dimension of the avoidance slide groove (23) so as to be able to slide along the avoidance slide groove (23), the dimension of the limit hole (24) is larger than the width dimension of the avoidance slide groove (23) and is in contact with the large shaft section (41) of the limit pin (40). ), the limit pin (40) can move along its axial direction to a first position and a second position. When the limit pin (40) is in the first position, the large shaft section (41) of the limit pin (40) is inserted into the limit hole (24) of the arc-shaped support arm (20) to limit the movement of the arc-shaped support arm (20) relative to the mounting bracket (10). When the limit pin (40) is in the second position, the large shaft section (41) of the limit pin (40) withdraws from the limit hole (24) of the arc-shaped support arm (20), and the small shaft section (42) of the limit pin (40) is shifted to the avoidance groove (23) to allow the arc-shaped support arm (20) to move relative to the mounting bracket (10).

4. The flap rotating hinge mechanism for kitchen products according to claim 3, characterized in that: The locking pin assembly also includes an elastic member, which acts on the limiting pin (40), so that the large shaft section (41) of the limiting pin (40) always has a tendency to move toward the limiting hole (24) of the arc-shaped support arm (20) and get stuck therein.

5. The flap rotating hinge mechanism for kitchen products according to claim 4, characterized in that: The limit pin (40) is provided with a limit stop portion (43) at one end portion close to the small shaft section (42); the elastic member is a spring (50) sleeved on the small shaft section (42); the spring (50) is pressed between the outer side wall of the mounting bracket (10) and the limit stop portion (43).

6. The flap rotating hinge mechanism for kitchen products according to claim 2, characterized in that: One end of the arc-shaped support arm (20) connected to the flap (61) is recorded as the first end, and the other end is recorded as the second end. The arc-shaped support arm (20) has at least two limiting holes (24) arranged in sequence along the length direction of the avoidance slide groove (23) at least in the portion adjacent to the second end.

7. The flap rotating hinge mechanism for kitchen products according to claim 3, characterized in that: The arc-shaped support arm (20) is flat as a whole and comprises two arc-shaped plates arranged opposite to each other and connected at one side, both arc-shaped plates are provided with the avoidance slide groove (23), and one of the two arc-shaped plates is provided with the limit hole (24).

8. The flap rotating hinge mechanism for kitchen products according to claim 3, characterized in that: The arc-shaped support arm (20) is flat as a whole, and two bearing members (30) are provided in the arc-shaped slideway (11), which are sleeved on the limit pin (40) and are respectively located on both sides of the arc-shaped support arm (20).

9. The flap rotating hinge mechanism for kitchen products according to claim 2, characterized in that: The locking pin assembly is provided on the mounting bracket (10) at a position adjacent to a mounting opening (110) of the mounting bracket (10).

10. A kitchen product, comprising a product body and a flap (61) rotatably connected to the product body, characterized in that: The flap (61) is connected to the product body via a flap rotating hinge mechanism for a kitchen product according to any one of claims 1 to 9.

11. The kitchen product according to claim 10, characterized in that: The kitchen product is one of an island table, a cabinet and a range hood.

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