Top-up door hinge combined thrust adjusting mechanism

Abstract

An upturning door hinge combined type thrust adjusting mechanism comprises a base fixed on a cabinet body and a connecting rod seat installed on a cabinet door, the base and the connecting rod seat are connected through a multi-connecting-rod mechanism, the multi-connecting-rod mechanism swings relative to the base and the connecting rod seat to achieve opening and closing of a hinge, a driving plate is further installed in the base in a hinged mode, and the driving plate is connected with the connecting rod seat. The driving plate is hinged to the multi-connecting-rod mechanism through a second pulling arm. A power assisting device is further arranged in the base, one end of the power assisting device is hinged to the base, the other end of the power assisting device is hinged to the driving plate, thrust generated by the power assisting device is always applied to the driving plate, the driving plate and the second pull arm are used for pushing the multi-connecting-rod mechanism to move, and power is provided for hinge opening.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of home hardware fittings, specifically a kind of upturning door hinge combined type thrust adjusting mechanism. BACKGROUND

[0002] Upturning door hinge mechanism has been widely applied in furniture, household appliances and other fields, especially in the door body structure of cabinet, wardrobe and intelligent household appliances. Such hinge connects door body and cabinet body through multi-link mechanism, realizes the turnover opening and closing of door body. However, the existing upturning door hinge mechanism generally has the following problems:

[0003] 1. Unable to accurately match door panel weight: The existing upturning door hinge mechanism usually adopts fixed power-assisted device, such as gas spring, torsion spring, etc. These devices need to set the thrust value in advance during design process. However, due to the diversity of door panel weight and material, such as solid wood, glass or composite material, the fixed power-assisted device is difficult to dynamically adjust according to the change of door panel weight. As a result, in actual application, the opening and closing speed of door panel will be affected by excessive or insufficient thrust:

[0004] When the thrust is too large, the opening speed of door panel is too fast, which may cause safety hazard in use process, and even damage door panel or hinge mechanism. When the thrust is insufficient, the opening speed of door panel is slow, the use experience is poor, and the door panel may not be fully opened.

[0005] 2. Limited adjustment range of power-assisted device: Some existing technologies try to solve the above problems through spring adjusting device, but its adjustment range is often limited, and the adjustment process is complex, which may even lead to improper adjustment, further affecting the use performance. In addition, the adjusted power-assisted device cannot maintain consistency, and the power-assisted effect is easy to decay after long-term use, so it is necessary to make further improvement. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at overcoming the shortcomings of existing technology, providing an upturning door hinge combined type thrust adjusting mechanism with simple structure, convenient use, which can adjust the force of power-assisted device according to the weight of cabinet door to match the door weight, so as to make the cabinet door open and close stably and smoothly.

[0007] The utility model discloses a kind of upturn door hinge combined type thrust adjusting mechanism, it includes the base fixed on cabinet body, and connecting rod seat is installed on cabinet door, the base is connected between connecting rod seat by multiple connecting rod mechanism, multiple connecting rod mechanism swing relative to base and connecting rod seat, realize the opening and closing of hinge, the base is also hingedly installed with driving plate, driving plate is hingedly connected with multiple connecting rod mechanism by second pull arm;The base is also provided with power-assisted device, one end of power-assisted device is hingedly connected with base, and the other end is hingedly connected with driving plate, the thrust generated by power-assisted device is always applied to driving plate, driving plate and second pull arm are used to promote multiple connecting rod mechanism movement, provide power for hinge opening.

[0008] Further: the power-assisted device includes spring fixed pipe and spring telescopic pipe, spring telescopic pipe is sleeved in spring fixed pipe, one end of spring telescopic pipe is hingedly connected with driving plate by spring support, tail of spring fixed pipe is connected with base by elastic force adjusting device, power spring is sleeved on the cylindrical surface of spring fixed pipe and spring telescopic pipe, power spring swings driving plate by spring support.

[0009] Further: the tail of spring fixed pipe is provided with spring base, one end of power spring is pressed on spring base, support pin is arranged on spring base, and both ends of support pin extend into adjusting groove arranged in base.

[0010] Further: the elastic force adjusting device is support column arranged in base, first elastic force adjusting screw hole is arranged on support column, first elastic force adjusting bolt is screwed in first elastic force adjusting screw hole, and the end of first elastic force adjusting bolt is connected with spring base, and the elastic force of power spring is adjusted by rotating first elastic force adjusting bolt to drive spring base to slide.

[0011] Further: power spring is sleeved on the cylindrical surface of spring fixed pipe and spring telescopic pipe, power spring swings driving plate by spring support.

[0012] Further: the elastic force guiding groove extends to the direction deviating from the hinged point of driving plate and base.

[0013] Further: the cylindrical surface of spring base is provided with guide hole penetrating through its body, and the support pin is inserted into the guide hole.

[0014] Further: both ends of support pin are flat table, and the flat table extends into adjusting groove.

[0015] Further, the tail of the spring base is provided with an inner recessed limiting hole, and the end of the first elastic adjusting bolt extends into the limiting hole.

[0016] The utility model discloses beneficial effect is: 1, simple structure, low in production cost, improve market competitiveness.

[0017] The utility model discloses through introducing elastic adjusting device, for example first elastic adjusting bolt, it can accurate adjustment power spring's elastic range according to the weight of door plate.Spring base passes through the adjusting bolt and base structure linkage, realizes the compression or release of power spring, thereby effectively changes the size of thrust.

[0018] The utility model discloses still be provided with second elastic adjusting bolt, change the stress position of drive board through its rotation, adjust the thrust lever length of drive board, realize the adjustment of second heavy power size.This design not only expands the adjustment range, but also can realize fine adjustment, makes power device can accurate matching different weight's door plate.

[0019] 4, the design of drive board and multi-connecting rod mechanism fully considers the coordination of motion track, and through the linkage structure of drive board and second pull arm, the thrust of power device can be stably transferred to multi-connecting rod mechanism, ensures that the opening and closing process of door plate is more smooth and stable.Even under the condition that the door plate is heavy, can also avoid the occurrence of shaking or jamming phenomenon. DRAWINGS

[0020] Figure 1 It is the utility model and cabinet door cabinet assembly, and be in opening state schematic drawing.

[0021] Figure 2 It is the utility model and cabinet door assembly, and be in closing state schematic drawing.

[0022] Figure 3 It is the utility model assembly structure schematic drawing.

[0023] Figures 4-6 It is the utility model hidden shell rear structure schematic drawing.

[0024] Figure 7 It is the utility model structure and be in closing state structure schematic drawing.

[0025] Figure 8 It is the utility model elastic adjusting device structure schematic drawing. CONCRETE IMPLEMENTING METHOD

[0026] The utility model makes further specific description in combination with the drawings. A kind of upturn door hinge combination formula thrust adjusting mechanism, it includes the base 6 being fixed on cabinet body 1, and connecting rod seat 5 being installed on cabinet door 2, the base 6 with connecting rod seat 5 between be connected by multiple connecting rod mechanism 3, multiple connecting rod mechanism 3 swing relative to base 6 and connecting rod seat 5, realize the opening and closing of hinge, the base 6 inside is also hingedly installed with driving plate 8, and driving plate 8 is hinged with multiple connecting rod mechanism 3 by second pull arm 81;The base 6 inside is also provided with power assisting device 9, and one end of power assisting device 9 is hinged with base 6, and the other end is hinged with driving plate 8, and the thrust generated by power assisting device 9 is always applied to driving plate 8, and driving plate 8 and second pull arm 81 are used to promote multiple connecting rod mechanism 3 movement, and provide power for the opening of hinge.

[0027] In one embodiment: the power assisting device 9 includes spring fixed pipe 91 and spring telescopic pipe 92, spring telescopic pipe 92 is sleeved in spring fixed pipe 91, one end of spring telescopic pipe 92 is hinged with driving plate 8 by spring support 93, and the tail of spring fixed pipe 91 is connected with base 6 by elastic force adjusting device, and power spring 94 is sleeved on the cylindrical surface of spring fixed pipe 91 and spring telescopic pipe 92, and power spring 94 drives driving plate 8 to swing by spring support 93.

[0028] In one embodiment: the tail of spring fixed pipe 91 is provided with spring base 95, and one end of power spring 94 is pressed on spring base 95, and spring base 95 is provided with support pin 96, and the both ends of support pin 96 extend into adjusting groove 97 provided in base 6.

[0029] In one embodiment: the elastic force adjusting device is support column 61 provided in base 6, support column 61 is provided with first elastic force adjusting screw hole 62, first elastic force adjusting screw hole 62 is screwed with first elastic force adjusting bolt 63, and the end of first elastic force adjusting bolt 63 is connected with spring base 95, and the elastic force of power spring 94 is adjusted by rotating first elastic force adjusting bolt 63 to drive spring base 95 to slide.

[0030] In one embodiment: the driving plate 8 is provided with elastic force guide groove 82, and spring support 93 is slidingly installed in elastic force guide groove 82 by elastic force guide column 83, and the driving plate 8 is also provided with second elastic force adjusting screw hole 84, and second elastic force adjusting screw hole 84 is screwed with second elastic force adjusting bolt 85, and the other end of second elastic force adjusting bolt 85 is connected with spring support 93 or elastic force guide column 83, and elastic force guide column 83 is driven to slide in elastic force guide groove 82 by rotating second elastic force adjusting bolt 85.

[0031] In one embodiment: the elastic force guide groove 82 is provided in the direction deviating from the hinged point of driving plate 8 and base 6.

[0032] In one of the embodiments: a guide hole 98 is provided through the body of the cylindrical surface of the spring base 95, and the support pin 96 is inserted into the guide hole 98.

[0033] In one of the embodiments: the two ends of the support pin 96 are flat tables 99, which extend into the adjusting groove 97.

[0034] In one of the embodiments: the tail of the spring base 95 is provided with a concave limiting hole 910, and the end of the first elastic adjusting bolt 63 extends into the limiting hole 910.

[0035] Working principle: the upturning door hinge combined type thrust adjusting mechanism provided by the utility model realizes smooth opening and closing of the upturning door through the synergistic effect of the multi-link mechanism, the driving plate and the power assisting device, and accurately adjusts the power assisting strength through the elastic adjusting device, so that the mechanism is adapted to door plates of different weights.

[0036] Specifically: the opening and closing of the upturning door are completed by the multi-link mechanism. The base is fixed on the cabinet body, the link seat is installed on the door plate, and the multi-link mechanism connects the base and the link seat. When the door plate is opened or closed, the multi-link mechanism swings relative to the base and the link seat, so as to ensure that the door plate moves along the predetermined track. Through the carefully designed link geometry, the multi-link mechanism can provide a stable movement track, and under the cooperation of the power assisting device, the jamming or shaking phenomenon is avoided. In addition, the movement track of the multi-link mechanism is coordinated with the thrust direction of the power assisting device, so that the mechanism always remains stable and free of impact during the opening and closing process.

[0037] In order to facilitate power transmission of the power assisting device and arrangement of internal components of the door opening mechanism, a driving plate is arranged in the case for power switching transmission. Specifically, the driving plate is hinged in the base, and one end of the driving plate is hinged with the multi-link mechanism through a second pull arm. When the power assisting device generates thrust, the driving plate swings in the base, and the power of the driving plate is transmitted to the multi-link mechanism through the second pull arm, so as to drive the multi-link mechanism to move, thereby realizing opening of the door plate by upturning. Conversely, in the closing process, the driving plate applies force to the power assisting device through the second pull arm, and the thrust of the power assisting device balances the weight of the door plate, so as to ensure the stability of the closing process.

[0038] In the technical scheme, the design of the driving plate enables the thrust of the power assisting device to act on the multi-link mechanism, reduces transmission energy loss, improves power assisting efficiency, facilitates arrangement of related mechanisms, and is conducive to reducing the size of the equipment.

[0039] Specifically, the assisting device in the case is composed of a spring fixing tube, a spring telescopic tube, an assisting spring, and an elastic force adjusting device. When the door panel is opened, the elastic pushing force generated by the assisting spring is applied to the driving plate through the spring support, pushing the driving plate to swing, which can be achieved by pushing the multi-link through the second pull arm when the driving plate swings, thereby realizing the assistance to the opening of the door panel. In the closing process, the closing force pushes the assisting spring to retract and store energy, providing stored power for the next door opening.

[0040] When the device is applied to different weight door bodies, the first elastic force adjusting bolt 63 is rotated to push the spring base to slide left and right, thereby adjusting the pre-pressure on the assisting spring 94, and the size of the assistance is adjusted. In order to facilitate the user to check the size of the assistance, a supporting pin 96 is arranged on the spring base 95 in the case, and flat tables 99 are arranged at both ends of the supporting pin 96, which extend into the adjusting groove 97. The connection between the flat table 99 and the adjusting groove 97 not only plays a supporting and guiding role on the spring base, but also enables the user to understand the size of the current assistance value by observing the position of the flat table 99 in the adjusting groove 97, so that the user can quickly judge how to adjust the size of the assistance.

[0041] It should be noted that: in order to further expand the range of elastic force adjustment of the device, the driving plate 8 is provided with an elastic force guide groove 82 in the case, and the spring support 93 is slidably installed in the elastic force guide groove 82 through the elastic force guide column 83. The driving plate 8 is also provided with a second elastic force adjusting screw hole 84, and the second elastic force adjusting screw hole 84 is screwed with a second elastic force adjusting screw 85, the other end of the second elastic force adjusting screw 85 is connected with the spring support 93 or the elastic force guide column 83, and the second elastic force adjusting screw 85 drives the elastic force guide column 83 to slide in the elastic force guide groove 82. The elastic force guide groove 82 extends to the direction deviating from the hinge point of the driving plate 8 and the base 6. Therefore, when the second elastic force adjusting screw 85 drives the elastic force guide column 83 to slide to different positions in the elastic force guide groove 82, the force point of the spring 94 applied to the driving plate is different, thereby changing the length of the spring pushing force arm, and in the case that the resistance arm of the driving plate pushing the second pull arm does not change, the length of the power arm directly affects the force of the spring 94 pushing the multi-link mechanism.

[0042] Compared with the traditional technology, the assisting device in the case can be adjusted in a large range and accurately through the cooperation of the first adjusting screw and the second adjusting screw, so that the mechanism can perfectly adapt to door panels of different weights, improve the application range, and avoid the problems of insufficient or excessive pushing force in the prior art, so it can be widely used.

[0043] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A combined hinge and thrust adjusting mechanism for an upwardly opening door, comprising a base (6) fixed to a cabinet (1) and a link base (5) mounted to a door (2), the base (6) and the link base (5) being connected by a multi-link mechanism (3) which oscillates relative to the base (6) and the link base (5) to open and close the door, characterized in that: The base (6) is further hingedly provided with a driving plate (8), the driving plate (8) is hingedly connected with the multi-link mechanism (3) through a second pull arm (81); the base (6) is further provided with a power assisting device (9), one end of the power assisting device (9) is hingedly connected with the base (6), the other end of the power assisting device (9) is hingedly connected with the driving plate (8), the power assisting device (9) always exerts a thrust on the driving plate (8), the driving plate (8) and the second pull arm (81) are used to push the multi-link mechanism (3) to move, and power assisting is provided for the hinge opening.

2. A flip-up door hinge combined thrust adjusting mechanism according to claim 1, characterized in that: The power assisting device (9) comprises a spring fixing tube (91) and a spring telescopic tube (92), the spring telescopic tube (92) is sleeved in the spring fixing tube (91), one end of the spring telescopic tube (92) is hingedly connected with the driving plate (8) through a spring support (93), the tail of the spring fixing tube (91) is connected with the base (6) through a spring force adjusting device, a power assisting spring (94) is sleeved on the cylindrical surface of the spring fixing tube (91) and the spring telescopic tube (92), and the power assisting spring (94) pushes the driving plate (8) to swing through the spring support (93).

3. A flip-up door hinge combined thrust adjusting mechanism according to claim 2, characterized in that: The tail of the spring fixing tube (91) is provided with a spring base (95), one end of the power assisting spring (94) is pressed on the spring base (95), the spring base (95) is provided with a supporting pin (96), and both ends of the supporting pin (96) extend into an adjusting groove (97) arranged on the base (6).

4. A flip-up door hinge combined thrust adjusting mechanism according to claim 2, characterized in that: The spring force adjusting device is a supporting column (61) arranged in the base (6), the supporting column (61) is provided with a first spring force adjusting screw hole (62), a first spring force adjusting bolt (63) is screwed in the first spring force adjusting screw hole (62), the end of the first spring force adjusting bolt (63) is connected with the spring base (95), and the spring base (95) is driven to slide by rotating the first spring force adjusting bolt (63), so that the spring force of the power assisting spring (94) is adjusted.

5. A flip-up door hinge combined thrust adjusting mechanism according to claim 1, characterized in that: The driving plate (8) is provided with a spring force guide groove (82), the spring support (93) is slidingly arranged in the spring force guide groove (82) through a spring force guide column (83), the driving plate (8) is further provided with a second spring force adjusting screw hole (84), a second spring force adjusting bolt (85) is screwed in the second spring force adjusting screw hole (84), the other end of the second spring force adjusting bolt (85) is connected with the spring support (93) or the spring force guide column (83), and the spring force guide column (83) is driven to slide in the spring force guide groove (82) by rotating the second spring force adjusting bolt (85).

6. A flip-up door hinge combined thrust adjusting mechanism according to claim 5, characterized in that: The spring force guide groove (82) extends in a direction deviating from the hinge joint point of the driving plate (8) and the base (6).

7. A flip-up door hinge combined thrust adjusting mechanism according to claim 3, characterized in that: A guide hole (98) is arranged through the body of the cylindrical surface of the spring base (95), and the supporting pin (96) is inserted into the guide hole (98).

8. A flip-up door hinge combined thrust adjusting mechanism according to claim 7, characterized in that: Both ends of the supporting pin (96) are flat tables (99), and the flat tables (99) extend into the adjusting groove (97).

9. A flip-up door hinge combined thrust adjusting mechanism according to claim 4, characterized in that: The tail of the spring base (95) is provided with a concave limiting hole (910), and the end of the first spring force adjusting bolt (63) extends into the limiting hole (910).

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