An embedded hinge power mechanism

Abstract

The utility model provides a kind of embedded hinge power mechanism, including fixed seat, base and the transmission four-bar linkage group articulated between fixed seat and base, transmission four-bar linkage group is equipped with power component, power component includes elastic power source, gyro wheel, power cam, power cam is installed in the swing articulated portion of transmission four-bar linkage, and the outer edge of power cam has corner arc convex edge portion for the automatic closing function of base and the arc connecting portion for making base be in open hover state, the positioning end of elastic power source is connected in the swing portion of transmission connecting rod group, gyro wheel is installed on the movable elastic portion of elastic power source, and the gyro wheel is always reciprocating slidingly connected on corner arc convex edge portion, arc connecting portion under the elastic action of elastic power source.Structure is simple, stability is high, easy to operate, improve the practicability and reliability of product, reduce manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the technical field of hinges, specifically an embedded hinge power mechanism. Background Technology

[0002] Hinges are the most commonly used connecting parts for opening and closing doors. They are widely used in furniture and appliances, especially refrigerators, where the cabinet and door are hinged together.

[0003] Traditional hinges consist of a mounting base for fixing the cabinet, a base for fixing the door, and a transmission assembly between the mounting base and the base. In the market, hinges are often equipped with a power source to ensure automatic closing after the door has been closed to a certain angle. This makes them convenient and practical, especially suitable for furniture or appliances with heavy loads.

[0004] However, existing hinges have the above shortcomings in practical applications:

[0005] 1) The existing transmission structure has poor stability and is prone to vibration, which reduces the smoothness and reliability of operation.

[0006] 2) The existing hinges have complex power sources and transmission structures, poor assembly precision, which can easily cause the automatic door closing function to fail, reducing the practicality of the product. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide an embedded hinge power mechanism with simple structure, high stability, and easy operation, thereby improving the practicality and reliability of the product and reducing manufacturing costs.

[0008] The purpose of this invention is achieved as follows: An embedded hinge power mechanism includes a fixed base installed on a cabinet, a base installed on a door, and a transmission four-bar linkage hinged between the fixed base and the base. The transmission four-bar linkage is equipped with a power component, which includes an elastic power source, a roller, and a power cam. The power cam is installed on the swing hinge portion of the transmission four-bar linkage, and the positioning end of the elastic power source is connected to the swing portion of the transmission linkage. The roller is installed on the movable elastic portion of the elastic power source, and the roller is always reciprocating and slidingly connected to the front and rear outer edges of the power cam under the elastic action of the elastic power source, so that the base can automatically close on the fixed base or open and hover on the fixed base.

[0009] Based on the above optimization, the outer edge of the power cam is provided with a corner arc protrusion for the base to have an automatic closing function and an arc connecting part for the base to be in an open and hovering state. The roller is always reciprocating and sliding on the corner arc protrusion and the arc connecting part under the elastic action of the elastic power source.

[0010] Based on the above optimization, the transmission linkage assembly includes a main beam arm, a secondary beam arm, a linkage rod, and a connecting rod. The positioning ends of the main beam arm and the secondary beam arm are respectively hinged to the fixed base. The connecting ends of the linkage rod and the connecting rod are respectively hinged to the swinging middle and swinging end of the main beam arm. The swinging ends of the connecting rod and the linkage rod are respectively hinged to the base. The swinging end of the secondary beam arm is hinged to the middle of the linkage rod.

[0011] The positioning end of the elastic power source is fixedly connected to the swing end of the connecting rod, and a power cam is fixedly installed at the hinge between the connecting rod and the main beam arm.

[0012] Based on the above optimization, the connecting rod is provided with a power limiting rod, and the power limiting rod and the connecting rod form a limiting mounting cavity for the elastic power source to extend and retract along the longitudinal direction of the connecting rod to elastically act on the roller.

[0013] Based on the above optimization, the elastic power source includes a guide rod, a spring, and a push rod. The positioning end of the guide rod is fixedly connected to the swing part of the connecting rod through a positioning shaft. The spring is fitted on the guide rod, and its two elastic ends are elastically connected to the guide rod and the push rod, respectively. The roller is rotatably connected to the push rod and, under the elastic action of the spring, is rollingly connected to the corner arc protrusion and arc connection part of the power cam.

[0014] Based on the above optimization, the push rod is provided with an arc-shaped connecting groove adapted to the rotation of the roller.

[0015] Based on the above optimization, the hinge joint between the connecting rod and the main beam arm is provided with a hinge shaft for fixed assembly with one end of the power cam, the main beam arm is provided with a positioning shaft for limiting the assembly position of the power cam in cooperation with the hinge shaft, and the other end of the power cam is fixed on the positioning shaft.

[0016] Based on the above optimization, the center circle of the positioning shaft and the arc connection part are made concentric.

[0017] The advantages of this utility model are:

[0018] 1) The power components of this structure, including the elastic power source, rollers, power cam, and four-bar linkage, work together. During hinge closure, the rollers roll to the corner arc protrusion, generating an automatic closing force under the elastic action of the elastic power source, thus automatically closing the door. During hinge opening, the rollers roll to the arc connection, keeping the door hinge in a suspended state. The structure is simple, easy to assemble, runs smoothly, and is convenient to operate.

[0019] 2) Due to the use of this structure in the power component, as the hinge opens and closes, the roller is always connected to the corner arc protrusion and arc connection part of the power cam under the elastic action of the elastic power source. The structure is stable, reliable and practical, effectively ensuring that it has automatic door closing function and door opening and hovering function, and is convenient to use. Attached Figure Description

[0020] Figure 1 This is a perspective view of the first embodiment of the present invention in the closed state.

[0021] Figure 2 This is a cross-sectional view of the first embodiment of the present invention in the closed state.

[0022] Figure 3 This is a perspective view of the first embodiment of the present invention in a 30-degree open state.

[0023] Figure 4 This is a cross-sectional view of the first embodiment of the present invention in a 30-degree open state.

[0024] Figure 5 This is a cross-sectional view of the first embodiment of the present invention in its 115-degree open state. Detailed Implementation

[0025] The present invention will now be further described with reference to the accompanying drawings.

[0026] According to the appendix Figures 1 to 5 As shown, the embedded hinge power mechanism of this utility model includes a fixed base 1 installed on the cabinet, a base 2 installed on the door, and a transmission four-bar linkage hinged between the fixed base 1 and the base 2. The transmission four-bar linkage is provided with a power component, which includes an elastic power source 3, a roller 4, and a power cam 5. The power cam 5 is installed on the swing hinge part of the transmission four-bar linkage, and the positioning end of the elastic power source 3 is connected to the swing part of the transmission linkage. The roller 4 is installed on the movable elastic part of the elastic power source 3, and the roller 4 is always reciprocating and sliding connected to the front and rear outer edges of the power cam 5 under the elastic action of the elastic power source 3, so that the base 2 can automatically close on the fixed base 1 or open and hover on the fixed base 1.

[0027] In practical applications, the outer edge of the power cam 5 is provided with a corner arc protrusion 51 for the base 2 to have an automatic closing function and an arc connecting part 52 for the base 2 to be in an open and hovering state. The roller 4 is always reciprocating and slidingly connected to the corner arc protrusion 51 and the arc connecting part 52 under the elastic action of the elastic power source 3.

[0028] During hinge closure, as roller 4 rolls to the corner arc protrusion 51, an automatic closing force is generated under the elastic action of the elastic power source 3, achieving automatic door closure. During hinge opening, roller 4 rolls to the arc connection 52, where the elastic force of the elastic power source 3 balances the weight of the door, keeping the door hinge in a suspended state. The structure is simple, easy to assemble, reduces manufacturing costs, operates smoothly, and is convenient to use.

[0029] Reference Figures 1 to 5 As shown, further detailed, the transmission linkage assembly includes a main beam arm 6, a secondary beam arm 7, a linkage rod 8, and a connecting rod 9. The positioning ends of the main beam arm 6 and the secondary beam arm 7 are respectively hinged to the fixed base 1. The connecting ends of the linkage rod 8 and the connecting rod 9 are respectively hinged to the swinging middle and swinging end of the main beam arm 6. The swinging ends of the connecting rod 9 and the linkage rod 8 are respectively hinged to the base 2. The swinging end of the secondary beam arm 7 is hinged to the middle of the linkage rod 8. The positioning end of the elastic power source 3 is fixedly connected to the swinging end of the connecting rod 9. A power cam 5 is fixedly installed at the hinge between the connecting rod 9 and the main beam arm 6.

[0030] The elastic power source 3 includes a guide rod 31, a spring 32, and a push rod 33. The positioning end of the guide rod 31 is fixedly connected to the swing part of the connecting rod 9 through the positioning shaft 11. The spring 32 is fitted on the guide rod 31 and its two elastic ends are elastically connected to the guide rod 31 and the push rod 33 respectively. The roller 4 is rotatably connected to the push rod 33 and rolls on the corner arc protrusion 51 and arc connecting part 52 of the power cam 5 under the elastic action of the spring 32.

[0031] The transmission four-bar linkage of this structure is simple in structure, provides uniform transmission force, reduces shaking, and improves transmission stability. At the same time, in conjunction with the power component of this structure, during the opening and closing of the hinge, the roller 4 is always rolled and connected to the corner arc protrusion 51 and arc connection 52 of the power cam 5 under the elastic action of the elastic power source 3. The structure is stable, reliable and practical, effectively ensuring the automatic door closing function and the door opening and hovering function, making it convenient to use.

[0032] Reference Figures 1 to 5 As shown in the figure, in a more detailed manner, the connecting rod 9 is provided with a power limiting rod 10, and the power limiting rod 10 and the connecting rod 9 form a limiting mounting cavity for the elastic power source 3 to extend and retract along the longitudinal direction of the connecting rod 9 to elastically act on the roller 4.

[0033] Furthermore, the push rod 33 is provided with an arc-shaped connecting groove adapted to rotate and connect with the roller 4.

[0034] The structure of the power limiting rod 10 and the arc connecting groove allows the elasticity of the elastic power source 3 to act on the roller 4, ensuring that the roller 4 and the power cam 5 are always in rolling connection, improving transmission stability, preventing the automatic closing function from failing, and making it reliable and practical.

[0035] In addition, the hinge joint between the connecting rod 9 and the main beam arm 6 is provided with a hinge shaft 12 for fixed assembly with one end of the power cam 5, and the main beam arm 6 is provided with a positioning shaft 11 for limiting the assembly position of the power cam 5 in cooperation with the hinge shaft 12, and the other end of the power cam 5 is fixed on the positioning shaft 11.

[0036] Furthermore, the positioning shaft 11 and the center circle of the arc connection portion 52 are concentric.

[0037] The structural cooperation between the positioning shaft 11 and the hinge shaft 12 ensures that the power cam 5 will not jump during movement, thus enhancing operational reliability. At the same time, it ensures that the hinge can achieve the opening and hovering function, making operation convenient.

[0038] This embodiment is only a specific implementation method with better effect of this utility model. All structures that are the same as or equivalent to the embedded hinge power mechanism of this utility model are within the protection scope of this utility model.

Claims

1. An embedded hinge power mechanism, comprising a fixed base (1) mounted on a cabinet, a base (2) mounted on a door, and a transmission four-bar linkage hinged between the fixed base (1) and the base (2), wherein the transmission four-bar linkage is provided with a power component, characterized in that: The power components include an elastic power source (3), a roller (4), and a power cam (5). The power cam (5) is installed on the swing hinge of the transmission four-bar linkage, and the positioning end of the elastic power source (3) is connected to the swing part of the transmission linkage group. The roller (4) is installed on the movable elastic part of the elastic power source (3), and the roller (4) is always reciprocated and slidably connected to the front and rear outer edges of the power cam (5) under the elastic action of the elastic power source (3), so that the base (2) can automatically close to the fixed seat (1) or open and hover on the fixed seat (1).

2. The embedded hinge power mechanism according to claim 1, characterized in that: The outer edge of the power cam (5) is provided with a corner arc protrusion (51) for the base (2) to have an automatic closing function and an arc connecting part (52) for the base (2) to be in an open and hovering state. The roller (4) is always reciprocating and sliding on the corner arc protrusion (51) and the arc connecting part (52) under the elastic action of the elastic power source (3).

3. The embedded hinge power mechanism according to claim 1 or 2, characterized in that: The transmission linkage assembly includes a main beam arm (6), a secondary beam arm (7), a linkage rod (8), and a connecting rod (9). The positioning ends of the main beam arm (6) and the secondary beam arm (7) are respectively hinged to the fixed base (1). The connecting ends of the linkage rod (8) and the connecting rod (9) are respectively hinged to the swing middle and swing end of the main beam arm (6). The swing ends of the connecting rod (9) and the linkage rod (8) are respectively hinged to the base (2). The swing end of the secondary beam arm (7) is hinged to the middle of the linkage rod (8). The positioning end of the elastic power source (3) is fixedly connected to the swing end of the connecting rod (9), and a power cam (5) is fixedly installed at the hinge between the connecting rod (9) and the beam arm (6).

4. The embedded hinge power mechanism according to claim 3, characterized in that: The connecting rod (9) is provided with a power limiting rod (10), and the power limiting rod (10) and the connecting rod (9) form a limiting mounting cavity for the elastic power source (3) to extend and retract along the longitudinal direction of the connecting rod (9) to elastically act on the roller (4).

5. The embedded hinge power mechanism according to claim 3, characterized in that: The elastic power source (3) includes a guide rod (31), a spring (32), and a push rod (33). The positioning end of the guide rod (31) is fixedly connected to the swing part of the connecting rod (9) through the positioning shaft (11). The spring (32) is fitted on the guide rod (31) and its two elastic ends are elastically connected to the guide rod (31) and the push rod (33) respectively. The roller (4) is rotatably connected to the push rod (33) and rolls on the corner arc protrusion (51) and arc connecting part (52) of the power cam (5) under the elastic action of the spring (32).

6. The embedded hinge power mechanism according to claim 3, characterized in that: The push rod (33) is provided with an arc-shaped connecting groove adapted to rotate with the roller (4).

7. The embedded hinge power mechanism according to claim 3, characterized in that: The connecting rod (9) and the main beam arm (6) are provided with a hinge shaft (12) for fixed assembly with one end of the power cam (5). The main beam arm (6) is provided with a positioning shaft (11) for limiting the assembly position of the power cam (5) in cooperation with the hinge shaft (12). The other end of the power cam (5) is fixed on the positioning shaft (11).

8. The embedded hinge power mechanism according to claim 7, characterized in that: The positioning shaft (11) and the center circle of the arc connection part (52) are concentric.

Images