CN108332498B - An embedded refrigerator buffer hinge - Google Patents

Abstract

The invention provides an embedded refrigerator buffer hinge, which comprises a fixed seat, a hinge seat and a hinge transmission assembly hinged between the fixed seat and the hinge seat, wherein the hinge transmission assembly is provided with a transmission connection group which is used for rotating and folding the hinge seat towards the fixed seat by taking a hinge point hinged with the fixed seat as a fixed point and is embedded on the fixed seat, so that the arm of force for rotating the hinge seat is prolonged, the thrust for pushing a refrigerator door body is reduced, and the operation is convenient; and the hinge transmission assembly is provided with an elastic buffer device, the elastic buffer devices are connected with each other, the tail ends of the buffer devices 6 are hinged with the transmission connection group, when the hinge is opened, the elastic buffer device applies buffer elastic pressure to the buffer heads, the buffer heads apply the top pressure balanced with the buffer elastic pressure to the elastic buffer devices when rotating, the operation is stable, the stress is uniform, the aim of stopping at will when the refrigerator door body is opened can be achieved, the use is flexible, the applicability is strong, the use effect of the hinge is guaranteed, and the use quality of the refrigerator is guaranteed.

Description

An embedded refrigerator buffer hinge

Technical field

The invention relates to the field of refrigerator hinges, specifically an embedded refrigerator buffer hinge.

Background technique

Refrigerator hinges are currently the most commonly used connectors for rotating and opening refrigerator doors. In order to achieve good closing performance between the refrigerator door and the refrigerator cabinet after opening or closing, existing refrigerator hinges usually use six-links. transmission mechanism.

However, current refrigerator hinges have the following shortcomings:

1. The elastic buffer is set in the rear transmission arm and is driven by the boss on the hinge seat. When the rear transmission arm rotates, the rotating shaft of the boss is always in a fixed state, so that when the spring is pressed, the spring is affected by radial stress. It is prone to radial deformation of the spring and uneven force;

2. The traditional elastic buffer is installed in the rear transmission arm, which will cause the refrigerator cover to be either closed or fully opened. It is difficult to adapt to people's usage habits to control the rotation angle of the refrigerator door, and has low applicability;

3. The hinge base has fewer moment arms to rotate, resulting in a larger thrust required to rotate the refrigerator door, which is inconvenient to operate. Moreover, there are many parts inside the hinge. After the refrigerator door is closed, there is a large gap between the parts inside the hinge. , increases the assembly volume, and easily leads to the accumulation of water vapor, dirt, etc.

Therefore, traditional refrigerator hinges still need to be further improved.

Contents of the invention

The object of the present invention is to overcome the shortcomings of the prior art and provide an embedded refrigerator buffer hinge that has fewer parts, simplifies the structure, and reduces costs. When the refrigerator door is closed, the hinge adopts an embedded folding method to reduce assembly occupancy. space to avoid the accumulation of water vapor, dirt, etc., and under the elastic buffering effect of the hinge, the refrigerator door can stay at any angle when it is opened, which is highly adaptable and easy to operate.

The object of the present invention is achieved as follows: an embedded refrigerator buffer hinge, which includes a fixed seat installed on the refrigerator frame, a hinge seat installed on the refrigerator door body, and a hinge hinged between the fixed seat and the hinge seat. Transmission assembly, the hinge transmission assembly is provided with a transmission connection group for rotating and folding with the hinge point hinged to the fixed base as a fixed point, so that the hinge base is folded toward the fixed base and embedded on the fixed base, and the front end of the transmission connection group is hinged On the fixed base, the rear end of the transmission connection group is hinged on the hinge base;

The hinge transmission assembly is equipped with an elastic buffering device that exerts a buffering elastic pressure on the hinge seat. The elastic buffering devices are connected to each other and exert a top pressure on the elastic buffering device that is balanced with the buffering elastic pressure during rotation, so that the hinge seat can stay at will when it is opened. The end of the buffer head is hinged with the transmission connection group.

Optimized according to the above, the hinge transmission assembly includes a transmission arm and a transmission link. The front end of the transmission arm is hinged on the fixed seat, the rear end of the transmission arm is hinged with the front end of the transmission link, and the rear end of the transmission link is hinged with the hinge base. hinge;

The fixed end of the elastic buffer device is fixed on the transmission arm. The elastic end of the elastic buffer device is slidingly connected to the transmission arm and connected to the buffer head. The buffer head shaft is connected to the hinge point of the transmission arm and the transmission connecting rod.

Optimized according to the above, the transmission connection group includes a transmission strut and a transmission fork. The front end of the transmission strut is hinged on the fixed seat. Both sides of the rear end of the transmission strut are respectively hinged with the front of the transmission fork. The transmission fork The rear ends are respectively hinged on the fixed base.

According to the above optimization, the front part of the transmission swing rod is provided with a connecting flange for folding and connecting to the hinge seat by rotating at a hinge point that is hinged with the transmission strut. The connecting flange is provided with an inclined surface that contacts the hinge seat surface. .

According to the above optimization, the outer side of the transmission fork bar is provided with a limiting connecting block for limiting the opening position of the hinge seat. The limiting connecting blocks are located outside the transmission strut and are respectively connected to the transmission fork bar.

Optimized according to the above, the elastic buffer device includes a spring rod and a spring piece. The fixed end of the spring rod is fixed on the transmission arm of the hinge transmission assembly. The movable end of the spring rod is equipped with a push rod. The push rod is telescopically connected to the spring. On the movable end of the rod, the push rod shaft is connected with a roller that is connected to the buffer head. The spring member is sleeved on the spring rod and its two ends press the front end of the spring rod and the push rod respectively.

Optimized according to the above, the transmission arm is provided with a sliding groove, the push rod is equipped with a sliding shaft matched with the roller, and the sliding shaft is slidingly connected to the sliding groove.

Optimized according to the above, the buffer head is equipped with a connecting shaft for connecting with the transmission connecting rod shaft. The buffer head is an eccentric buffer wheel that rotates with the connecting shaft as a fixed point and is connected to the roller surface.

The advantage of the present invention is that: by utilizing the transmission cooperation between the hinge transmission assembly and the transmission connection group, the hinge transmission assembly and the transmission connection group are folded at the hinge point hinged with the fixed base respectively, lengthening the moment arm of the hinge base rotation, and reducing the The thrust of the refrigerator door is convenient for operation, and the hinge base can be rotated, folded, and embedded on the fixed base with the hinge point hinged to the fixed base as a fixed point, so that after the refrigerator door is closed, the gap of the internal components of the hinge is reduced and the cost is reduced. The assembly volume is to avoid the accumulation of water vapor, dirt, etc.; and the structure of the elastic buffer device and the buffer head is coordinated so that the elastic buffer device exerts buffering elastic pressure on the buffer head, and the buffer head exerts a force that is balanced with the buffering elastic pressure on the elastic buffering device when rotating. It has high pressure, stable operation, uniform force, and can achieve the purpose of stopping the refrigerator door at will when it is opened. It is flexible to use and has strong applicability, ensuring the use effect of the hinge and ensuring the use quality of the refrigerator.

Description of the drawings

Figure 1 is a schematic structural diagram of the folded state of the preferred embodiment of the present invention.

Figure 2 is a partial cutaway view of the folded state of the preferred embodiment of the present invention.

Figure 3 is a schematic structural diagram of the open state of the preferred embodiment of the present invention.

Figure 4 is a partial cutaway view of the open state of the preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of the preferred embodiment of the present invention in the open state.

Figure 6 is a diagram showing the relationship between the elastic buffer device and the buffer head according to the preferred embodiment of the present invention.

Figure 7 is a schematic structural diagram of a transmission swing rod according to a preferred embodiment of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in the accompanying drawings 1 to 7, the embedded refrigerator buffer hinge of the present invention includes a fixed base 1 installed on the refrigerator frame, a hinge base 2 installed on the refrigerator door body, and a hinge base hinged between the fixed base 1 and the hinge. Hinge transmission assembly 3 between seats 2. The hinge transmission assembly 3 is provided with a transmission connection group 4 for rotating and folding with the hinge point hinged to the fixed base 1 as a fixed point, so that the hinge base 2 can be folded toward the fixed base 1 and embedded on the fixed base 1 . The front end of the transmission connection group 4 is hinged on the fixed seat 1, and the rear end of the transmission connection group 4 is hinged on the hinge seat 2.

That is, when the refrigerator is closed, the hinge transmission assembly 3 and the transmission connection group 4 are folded using the hinge point hinged with the fixed base 1 as fixed points, lengthening the rotational arm of the hinge base 2, reducing the thrust force pushing the refrigerator door, and facilitating operation. Moreover, when the refrigerator door is closed, the hinge base 2 can be rotated at the hinge point articulated with the fixed base 1 and folded and embedded on the fixed base 1, thereby reducing the gaps between components inside the hinge, reducing the assembly volume, and avoiding water vapor, Accumulation of dirt, etc.

Referring to FIG. 1 , the transmission connection group 4 includes a transmission support rod 41 and a transmission swing bar 42 . The front end of the transmission support rod 41 is hinged to the fixed base 1. Both sides of the rear end of the transmission support rod 41 are respectively hinged to the front of the transmission fork 42. The rear ends of the transmission fork 42 are respectively hinged to the fixed base 1.

When the refrigerator door is opened, the hinge seat 2 is opened outward and drives the transmission arm 31 and the transmission support rod 41 to rotate outward respectively with the hinge point hinged with the fixed base 1 as the fixed point. When the transmission arm 31 and the transmission support rod 41 rotate to When the position is specified, the transmission link 32 and the transmission swing bar 42 respectively rotate outward with the hinge points of the transmission arm 31 and the transmission support rod 41 as fixed points. The hinge point between the rod 42 and the hinge seat 2, the hinge point between the hinge seat 2 and the transmission link 32, and the hinge point between the transmission link 32 and the transmission arm 31 form a four-sided balancing motion. The rotating force arm of the hinge base 2 is lengthened to reduce the thrust force for pushing the refrigerator door body and facilitate operation.

Among them, the outer side of the transmission fork 42 is provided with a limiting connecting block 45 for limiting the opening position of the hinge seat 2. The limiting connecting blocks are located outside the transmission support rod 41 and are respectively connected to the transmission fork 42. When the transmission link 32 and the transmission fork 42 respectively rotate to the rated positions, the limiting connecting block 45 presses against the transmission support 41, so that the transmission fork 42, the transmission link 32 and the hinge seat 2 are respectively in the four-link support frame. The hinge seat 2 is fully opened to strengthen the support strength, improve the smoothness and stability of operation, and reduce noise.

In addition, the front part of the transmission fork 42 is provided with a connecting flange 43 for folding and connecting to the hinge seat 2 by rotating at a hinge point that is hinged with the transmission support rod 41. The connecting flange 43 is provided with a surface contacting the hinge seat 2. The inclined surface 44. When the refrigerator door is closed, the hinge base 2 is folded inward, and the transmission link 32 and the transmission swing bar 42 are pushed to rotate inward with the hinge points of the transmission arm 31 and the transmission support rod 41 respectively as fixed points. The transmission link 32 When the transmission swing bar 42 rotates to a designated position, the transmission link 32 and the transmission support rod 41 are folded on the transmission arm 31 and the transmission support rod 41 , and the inclined surface 44 of the connecting flange 43 is in surface contact with the hinge seat 2 . Then, the hinge base 2 continues to move inward, driving the transmission arm 31 and the transmission strut 41 to rotate inward with the hinge point hinged with the fixed base 1 as the fixed point, so that the transmission arm 31 and the transmission strut 41 are respectively embedded in the fixed base. On the base 1, the hinge base 2 is embedded in the fixed base 1, thereby reducing the gaps between components inside the hinge, reducing the assembly volume, and avoiding the accumulation of water vapor, dirt, etc.

Referring to FIGS. 1 to 7 , the hinge transmission assembly 3 is equipped with an elastic buffering device 5 that exerts a buffering elastic pressure on the hinge seat 2 . The elastic buffering devices 5 are connected to each other with a buffering head 6 that exerts a pressing force that is balanced with the buffering elastic pressure during rotation so that the hinge seat 2 can stay at will when the hinge seat 2 is opened. The end of the buffering head 6 is hinged with the transmission connection group 4 . The fixed end of the elastic buffer device 5 is fixed on the transmission arm 31. The elastic end of the elastic buffer device 5 is slidingly connected to the transmission arm 31 and connected to the buffer head 6. The buffer head 6 is axially connected to the transmission arm 31 and the transmission connecting rod. 32 hinge points.

That is, the elastic buffering device 5 exerts buffering elastic pressure on the buffering head 6, and the buffering head 6 exerts a pressing force on the elastic buffering device 5 that is balanced with the buffering elastic pressure when rotating. The operation is stable, the force is uniform, and the refrigerator door can be reached. The purpose is to stay at will when the body is opened. It is flexible to use and has strong applicability, ensuring the use effect of the hinge and ensuring the use quality of the refrigerator.

In practical applications, the elastic buffer device 5 includes a spring rod 51 and a spring member 52 . The fixed end of the spring rod 51 is fixed on the transmission arm 31 of the hinge transmission assembly 3, and the movable end of the spring rod 51 is equipped with a push rod 53. The push rod 53 is telescopically connected to the movable end of the spring rod 51, and the push rod 53 is axially connected to a roller 54 connected to the buffer head 6. The spring member 52 is sleeved on the spring rod 51 and pressed at both ends. Connect the front end of the spring rod 51 and the push rod 53. Wherein, the spring member 52 is a coil spring. When the hinge is running, one end of the spring member 52 acts on the transmission arm 31, and the other end of the spring member 52 acts on the roller 54 through the push rod 53 to elastically reset and slide relative to the transmission arm 31. The specific structure is: the transmission arm 31 is provided with a sliding groove 33, the push rod 53 is equipped with a sliding shaft 55 that is matched with the roller 54, and the sliding shaft 55 is slidingly connected to the sliding groove 33. Strengthen the stability and smoothness of operation, and improve the quality of use of the elastic buffer device 5. During this period, the roller 54 rolls freely; in order to avoid the spring member 52 acting directly on the roller 54 and affecting the movement of the roller 54, the push rod 53 telescopically acts on the sliding shaft 55 to ensure the normal use of the elastic buffer device 5.

In addition, the buffer head 6 is installed with a connecting shaft 61 for axial connection with the transmission link 32 . The buffer head 6 is an eccentric buffer wheel that rotates with the connecting shaft 61 as a fixed point and is surface-connected with the roller 54 . Since the eccentric buffer wheel has an eccentric smooth arc surface, it has a squeezing effect with the roller 54, and the roller 54 rolls on the arc surface of the eccentric buffer wheel, so as to achieve a buffering effect when the hinge is opened and rotated, and reduce the friction between components. Friction makes the cushioning smoother and has a remarkable mute effect.

The above-mentioned specific embodiments are only specific implementations of the present invention that are more effective. All structures that are the same or equivalent to the embedded refrigerator buffer hinge of the present invention are within the protection scope of the present invention.

Claims (4)

1. The utility model provides an embedded refrigerator buffering hinge, includes fixing base (1) of installing on the refrigerator framework, installs hinge seat (2) on the refrigerator door body and articulates hinge drive subassembly (3) between fixing base (1) and hinge seat (2), its characterized in that: the hinge transmission assembly (3) is provided with a transmission connection group (4) which is used for folding the hinge seat (2) towards the direction of the fixed seat (1) by taking a hinge point hinged with the fixed seat (1) as a fixed point to rotate and is embedded on the fixed seat (1), the front end of the transmission connection group (4) is hinged with the fixed seat (1), and the rear end of the transmission connection group (4) is hinged with the hinge seat (2);

the hinge transmission assembly (3) is provided with an elastic buffer device (5) which applies buffer elastic pressure to the hinge seat (2), the elastic buffer devices (5) are connected with each other, when the hinge transmission assembly rotates, a buffer head (6) which applies a top pressure balanced with the buffer elastic pressure to the elastic buffer device (5) so as to enable the hinge seat (2) to stay at will when being opened is arranged, and the tail end of the buffer head (6) is hinged with the transmission connection group (4);

the hinge transmission assembly (3) comprises a transmission arm (31) and a transmission connecting rod (32), wherein the front end of the transmission arm (31) is hinged to the fixed seat (1), the rear end of the transmission arm (31) is hinged to the front end of the transmission connecting rod (32), and the rear end of the transmission connecting rod (32) is hinged to the hinge base;

the fixed end of the elastic buffer device (5) is fixed on the transmission arm (31), the elastic end of the elastic buffer device (5) is connected to the transmission arm (31) in a sliding manner and is connected with the buffer head (6), and the buffer head (6) is connected to a hinge point of the transmission arm (31) and the transmission connecting rod (32) in a shaft manner;

the elastic buffer device (5) comprises a spring rod (51) and a spring piece (52), wherein the fixed end of the spring rod (51) is fixed on a transmission arm (31) of the hinge transmission assembly (3), a push rod (53) is arranged at the movable end of the spring rod (51), the push rod (53) is connected with the movable end of the spring rod (51) in a telescopic manner, the push rod (53) is connected with a roller (54) which is connected with the buffer head (6) in a shaft manner, and the spring piece (52) is sleeved on the spring rod (51) and the two ends of the spring piece respectively push the front end of the spring rod (51) and the push rod (53);

the buffer head (6) is provided with a connecting shaft (61) for connecting with the transmission connecting rod (32) in a shaft way, and the buffer head (6) is an eccentric buffer wheel which rotates at a fixed point by taking the connecting shaft (61) and is connected with the surface of the roller (54);

the transmission connection group (4) comprises a transmission supporting rod (41) and a transmission swinging rod (42), the front end of the transmission supporting rod (41) is hinged to the fixed seat (1), two sides of the rear end of the transmission supporting rod (41) are respectively hinged to the front portion of the transmission swinging rod (42), and the rear ends of the transmission swinging rod (42) are respectively hinged to the hinge seat (2).

2. The embedded refrigerator buffering hinge of claim 1, wherein: the front part of the transmission swing rod (42) is provided with a connecting convex edge (43) which is hinged with the transmission support rod (41) by rotating a hinge point and is folded and connected with the hinge seat (2), and the connecting convex edge (43) is provided with an inclined surface (44) which is contacted with the surface of the hinge seat (2).

3. The embedded refrigerator buffering hinge of claim 2, wherein: and a limiting connecting block (45) for limiting the opening position of the hinge seat (2) is arranged on the outer side of the transmission swing rod (42), and the limiting connecting block is positioned on the outer side of the transmission support rod (41) and is respectively connected to the transmission swing rod (42).

4. The embedded refrigerator buffering hinge of claim 1, wherein: the transmission arm (31) is provided with a sliding groove (33), the push rod (53) is provided with a sliding shaft (55) which is matched with the roller (54), and the sliding shaft (55) is connected to the sliding groove (33) in a sliding way.