CN103410394A - Adjustable damping hinge - Google Patents

Abstract

The invention relates to an adjustable damping hinge which comprises a hinged cup, a connecting rod, a hinged arm, a base, a damper, a crankshaft connector and an elastic piece, wherein the elastic piece enables the hinged cup to have closing force, the hinged arm is adjustably installed on the base, one end of the connecting rod is hinged to the hinged cup, the other end of the connecting rod is hinged to the hinged arm, the damper is adjustably installed between the base and the hinged arm, the crankshaft connector comprises a crankshaft and a connecting arm, one end of the crankshaft is hinged to the hinged cup, the other end of the crankshaft is movably connected with a piston rod of the damper through the connecting arm, the position between two ends of the crankshaft is further hinged to the hinged arm, the connecting arm is further hinged to the hinged arm, and connecting lines of the connecting arm and the hinged positions of the hinged arm. In the door opening or closing process, the hinge cup drives the crankshaft to rotate, the crankshaft pushes or pulls the piston rod of the damper to realize door opening and door closing buffering, and the crankshaft is connected with the piston rod through the integral connecting arm, so that the transmission structure is simpler and the transmission is reliable.

Description

An adjustable damping hinge

technical field

The invention relates to a hinge, in particular to an adjustable damping hinge for furniture doors, which belongs to the improvement technology of the damping hinge. the

Background technique

At present, the furniture industry generally uses hinges to connect cabinet doors when manufacturing furniture. This kind of door hinge is equipped with a spring device, which makes the door have a compressive force when opening and closing the door, eliminating the need for magnetic attraction or bolt fixing in the past. Easy to use without hassle. Its shortcoming is that because of the resilience effect of the spring, the collision between the door and the cabinet body will occur when the door is closed, and noise will occur, and even badly placed or fragile items in the cabinet will be broken. Chinese Invention Patent Publication No. CN101861441B discloses a hinge for furniture, which includes a hinge part that can be fixed on a door or a cover, and the hinge part is pivotally supported on a side part via a support rod and a guide rod. The part is held on a mounting plate capable of being mounted on the furniture body; at least one spring by which the hinge part is biased towards the closed position within the automatic pull-in range; A moving piston rod is used for the closing movement of the damper part; the damper is designed as a pressure damper and is provided with a deflection element which is coupled to the damper and can be moved via a tie rod during the closing movement of the hinge part, the deflection element Mounted rotatably on the side parts, the deflection element is connected to the tie rod, through which the tensile force is converted into a compressive force acting on the damper. This kind of hinge is not only complicated in structure, but the linear buffer is always connected to the pull rod through the steering element during use, so when opening and closing the door, the door body will be affected by the linear buffer. Affect the cushioning effect, or even get stuck, making it impossible to open and close the door. the

Contents of the invention

The object of the present invention is to propose an adjustable damping hinge with simple structure, long service life, reliable cushioning, good effect and adjustable cushioning angle. the

In order to achieve the above object, the present invention adopts a technical solution: an adjustable damping hinge, including a hinge cup, a connecting rod, a hinge arm, a base, a damper, a crankshaft connector, and an elastic member that enables the hinge cup to have a closing force. The hinge arm can be adjusted and installed on the base, one end of the connecting rod is hinged with the hinge cup, the other end of the connecting rod is hinged with the hinge arm, the damper can be adjusted and installed between the base and the hinge arm, and the crankshaft connector includes crankshaft and connecting arm, one end of the crankshaft is hinged with the hinge cup, the other end of the crankshaft is movably connected with the damper through the connecting arm, the position between the two ends of the crankshaft is also hinged with the hinge arm, and the connecting arm is also hinged with the hinge arm, And the hinged position of the connecting arm and the hinge arm, the connecting position of the crankshaft and the connecting arm, and the connecting position of the connecting arm and the damper are respectively located at different positions of the connecting arm. the

In the above solution, when the door is closed, the crankshaft drives the connecting arm to rotate around the hinge axis of the connecting arm and the hinge arm, causing the connecting arm to drive the damper, so that the door closing process is carried out slowly; The hinged shaft rotates in the opposite direction of closing the door. Due to the effect of the damper, the door opening process is carried out slowly. Since the crankshaft is connected with the damper through an integral connecting arm, the structure is not only simple but also reliable. the

Further, the connecting arm is hinged to the crankshaft and the damper respectively, the hinged position of the connecting arm and the hinged arm is between the hinged position of the crankshaft and the connecting arm and the connecting position of the connecting arm and the damper, and the hinged position of the connecting arm and the hinged arm 1. The hinged position of the crankshaft and the connecting arm and the connecting position of the connecting arm and the damper are not on the same straight line. The hinged position of the connecting arm and the hinge arm, the hinged position of the crankshaft and the connecting arm, and the connecting position of the connecting arm and the damper together form a triangle relationship. During the process of opening and closing the door, the connecting arm swings around the hinge axis of the connecting arm and the hinged arm, thereby realizing Drive damper. the

The hinged hole on the crankshaft that is hinged to the connecting arm is the first sliding shaft hole, and the hinged shaft that the crankshaft is hinged to the connecting arm can move in the first sliding shaft hole; or, the hinged hole on the connecting arm that is hinged to the crankshaft is In the second sliding shaft hole, the hinge shaft in which the crankshaft is hinged with the connecting arm can move in the second sliding shaft hole. In this solution, since the sliding shaft hole is provided, the speed of opening and closing the door is faster in the initial process of opening and closing the door, and the total time for opening and closing the door is reduced. the

In order to realize the front and rear adjustment of the hinge arm and the fine adjustment of the door body and the door frame, a moving arm is also provided between the base and the hinge arm, and the damper is placed in the cavity formed by the base and the moving arm. The hinged arm moves. the

The above-mentioned damper includes a cylinder body, a piston rod and a piston arranged in the cylinder body, one end of the piston rod is connected with the piston, the other end of the piston rod protrudes outside the cylinder body, and one end of the piston rod protrudes outside the cylinder body Hinged with the connecting arm, the position of the cylinder body in the cavity formed by the base and the moving arm can be adjusted. During the process of opening and closing the door, the connecting arm achieves the buffering effect of the door body by pulling and pressing the piston rod. If the buffering time needs to be changed, it is only necessary to change the relative movement distance between the cylinder body and the piston rod. the

Further, a movable adjusting piece is provided in the cavity formed by the base and the moving arm, one end of the adjusting piece is connected with the cylinder body of the damper, and the other end of the adjusting piece is movably connected with the hinge arm. By turning the eccentric nail, the position of the adjusting plate can be changed, and the movable distance of the cylinder body in the cavity can be changed at the same time, so as to realize changing the buffer time. the

In order to facilitate fixing the position of the cylinder body, the outer wall of the cylinder body of the above-mentioned damper is provided with a stopper, and the end of the adjusting plate connected to the cylinder body of the damper can be in contact with the stopper block. the

One end of the adjusting piece connected to the hinge arm is hingedly connected to the hinge arm through an eccentric nail. By turning the eccentric nail, the position of the adjusting plate can be changed, and the movable distance of the cylinder body in the cavity can be changed at the same time, so as to realize changing the buffer time. the

The above-mentioned elastic part is a torsion spring, and the torsion spring is set on the hinge shaft of the connecting rod and the hinge arm. The first and second protruding ends of the torsion spring respectively press the crankshaft of the hinge arm and the crankshaft connector, and the torsion spring makes the hinge through the crankshaft. The cup has a closing force. the

The crankshaft connector used for the piston rod transmission of the hinge cup and the damper in the present invention is composed of two parts, the crankshaft and the connecting arm. The connecting line of the hinge position of the hinge arm and the piston rod is in a triangular relationship. During the process of opening or closing the door, the hinge cup drives the crankshaft to rotate, and the crankshaft pushes or pulls the piston rod of the damper to achieve door opening and closing buffer. The transmission connection is connected through the whole connecting arm, so the transmission structure is relatively simple, and the transmission is reliable, and it is not easy to wear or get stuck; since the hinge hole on the crankshaft or the connecting arm is a sliding shaft hole, it is easy to open or close the door at the beginning of the door. During the process, the hinge shaft of the crankshaft and the connecting arm will slide from one end of the sliding shaft hole to the other end. During this sliding process, the position change of the crankshaft pulling or pushing the connecting arm is relatively small, so that the effect of the damper is relatively small. Small, so the opening or closing speed of this process is faster, which not only reduces the time of opening and closing the door, but also increases the life of the damper. In addition, since the movable distance of the cylinder body of the damper in the cavity formed by the base and the moving arm can be adjusted, in the process of opening and closing the door, adjusting the movable distance of the cylinder body can achieve the buffering effect of adjusting the door opening and closing. Time, thereby changing the time of opening and closing the door. the

Description of drawings

Fig. 1 is a schematic diagram of the adjustable damping hinge of the present invention in the plate-mounted position. the

Fig. 2 is a perspective view of the adjustable damping hinge of the present invention. the

Fig. 3 is a closed state view of the adjustable damping hinge of the present invention when the door is closed. the

Fig. 4 is a diagram of the opening state of the adjustable damping hinge of the present invention when the door is opened. the

FIG. 5 is an exploded view of the crankshaft connector of the adjustable damping hinge of Embodiment 1. FIG. the

Fig. 6 is an exploded view of the crankshaft connector of the adjustable damping hinge of embodiment 2. the

7 and 8 are structural diagrams of the damper of the adjustable damping hinge of the present invention. the

Fig. 9 is a structural diagram of the adjusting plate of the adjustable damping hinge of the present invention. the

Fig. 10 is an exploded view of the adjustable damping hinge of the present invention. the

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the drawings are only for illustrative purposes and cannot be interpreted as limitations on this patent; in order to better illustrate the following embodiments, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for this field For those skilled in the art, it is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. the

Example 1

The structure of the adjustable damping hinge of the present invention is shown in Figures 2, 3, 4, and 10, including a hinge cup 1, a connecting rod 2, a hinge arm 3, a base 4, a damper 5, a crankshaft connector 6, and a moving arm 8 And the elastic member 7 that makes the hinge cup 1 have a closing force, wherein, as shown in Figure 5, the crankshaft connector 6 includes a crankshaft 61 and a connecting arm 62, and the connecting arm 62 is provided with three hinge holes 620, 621, 622, and the three hinge The connecting lines of the positions of the holes 620, 621, and 622 are triangular; as shown in Figures 7 and 8, the damper 5 includes a cylinder 51, a piston rod 52 and a piston arranged in the cylinder 51 (not shown in the drawings). Out), the end of the outer wall of the cylinder 51 is provided with a stopper 511, one end of the piston rod 52 is connected to the piston, and the other end of the piston rod 52 protrudes outside the cylinder 51; the hinge arm 3 is placed above the base 4, and the moving arm 8 is placed between the base 4 and the hinge arm 3, and the movable arm 8 is connected with the base 4, the hinge arm 3 is connected with the movable arm 8 through the adjusting wire 102 and the adjusting wheel 103, and one end of the connecting rod 2 is hinged with the hinge cup 1, and the connecting rod 2 is connected with the hinge cup 1. The other end of the rod 2 is hinged with the end of the hinge arm 3, and the damper 5 is installed in the cavity formed between the base 4 and the hinge arm 3. The cylinder 51 of the damper 5 can be mounted on the base 4 and the hinge arm 3. Move or fix in the cavity formed, one end of the crankshaft 61 is hinged with the hinge cup 1, the other end of the crankshaft 61 is provided with a first sliding shaft hole 610, and the position between the two ends of the crankshaft 61 is also hinged with the hinge arm 3, The first sliding shaft hole 610 of the crankshaft 61 is connected to the hinge hole 620 of the connecting arm 62 through the hinge shaft 22, so that the crankshaft 61 and the connecting arm 62 are hinged, and the hinge shaft 22 can slide back and forth at both ends in the first sliding shaft hole 610 , the hinge hole 621 of the connecting arm 62 is hinged with the extended end of the piston rod 52 of the damper 5, and the connecting arm 62 is hinged with the hinge arm 3 through the hinge hole 622 through the hinge shaft 24. In this embodiment, the connecting arm 62 and the hinge The hinged position of the arm 3 is located above between the hinged position of the crankshaft 61 and the connecting arm 62 and the connecting position of the connecting arm 62 and the piston rod 52 of the damper 5 .

The cavity formed by the above-mentioned base 4 and the moving arm 8 is also provided with a movable adjusting piece 9, and the lower end of the adjusting piece 9 is provided with a groove 91, as shown in Figure 9, the groove 91 at the lower end of the adjusting piece 9 is connected with the damper The cylinder 51 of 5 is clamped, and the lower end of the adjusting piece 9 is in contact with the left side of the block 511. The other end of the adjusting piece 9 is hinged with the hinge arm 5 through the eccentric nail 101. The eccentric nail 101 is located at the top of the hinge arm 5. The adjusting piece 9 can be in contact with the left side of the stopper 511, and the adjusting piece 9 can limit the left side of the cylinder body 51. The right side of the cylinder body 51 in this embodiment is limited by the shaft 23, and of course it can be limited by a buckle. Rotating the eccentric nail 101 can drive the adjustment piece 9 to move left and right, thereby changing the distance between the adjustment piece 9 and the shaft 23 , so that the movable distance of the cylinder 51 between the adjustment piece 9 and the shaft 23 is changed. In the process of closing the door, the connecting arm 62 first pulls the damper 5 and moves to the left as a whole until the left side of the stopper 511 on the cylinder 51 contacts the adjusting piece 9. At this time, the cylinder 51 no longer moves to the left, and the piston At this time, the rod 52 starts to move relative to the cylinder body 51, and the door closing buffer takes effect; in the process of opening the door, the connecting arm 62 first pushes the damper 5 to move to the right as a whole, until the right side of the block 511 on the cylinder body 51 and the shaft 23 Contact, now the cylinder body 51 no longer moves to the right, and the piston rod 52 starts to move relative to the cylinder body 51 at this moment, and the door opening buffer takes effect. No matter in the process of opening or closing the door, the process of the cylinder body 51 moving between the regulating plate 9 and the shaft 23 is not damped by the damper 5, so the speed of the door opening and closing is relatively fast. If the door opening and closing process is subjected to the damping action time of the damper 5, the shorter the door opening and closing process, the shorter the required time. the

The above-mentioned elastic member 7 is a torsion spring, and the torsion spring is set on the hinge shaft 21 of the connecting rod 2 and the hinge arm 3, and the first and second protruding ends 71, 72 of the torsion spring respectively press the hinge arm 3 and the crankshaft connector 6 The crankshaft 61 of the torsion spring makes the hinge cup 1 have a closing force through the crankshaft 61. When closing the door, an external force is applied along the door closing direction. The door can be closed automatically when driven by an external force; when opening the door, an external force is applied in the direction of opening the door. When the hinge cup 1 rotates to a certain angle in the opposite direction, the closing force exerted by the torsion spring on the hinge cup 1 through the crankshaft 61 is reduced to the point that the door cannot be automatically closed. At this time, the door can be opened automatically. the

In this embodiment, the above-mentioned hinge shaft of connecting rod 2 and hinge cup 1 and the hinge shaft of crankshaft 61 and hinge cup 1 are integrally made into a U-shaped structure, that is, the ends of one of the two hinge shafts are connected together. By unscrewing the adjusting wire 102 and rotating the adjusting wheel 103, the hinge arm 3 can be adjusted to move forward and backward relative to the movable arm 8, and the distance between the hinge arm 3 and the movable arm 8 can also be adjusted by rotating the adjusting wire 102 to realize the adjustment of the door body 17 and the movable arm 8. The fit of the door frame 18. the

When the present invention is used, the hinge cup 1 is fixed on the door body 17, and the base 4 is fixed on the door frame 18 or the inner wall of the cabinet, as shown in Figure 1, and Figure 3 is the folded state of the present invention when the door is closed. The invention is in an open state when the door is opened. the

Door opening process: the door body 17 drives the hinge cup 1 to open in the counterclockwise direction. When the hinge cup 1 is opened, it will drive the crankshaft 61 to rotate in the clockwise direction. The right end of the sliding shaft hole 610 is in contact with the left end of the first sliding shaft hole 610. During this sliding process, the crankshaft 61 exerts little force on the connecting arm 62, so the effect of the damper 5 is very small. The opening speed of the body 17 is fast; when the opening angle of the door body can cause the hinge shaft 22 to contact the left end of the first sliding shaft hole 610, the crankshaft 61 exerts a large force on the connecting arm 62 at this time, and the crankshaft 61 pushes the connecting arm 62 Rotate counterclockwise around the hinge shaft 21, and the connecting arm 62 pushes the piston rod 52 to the right. Due to the damping effect of the damper, the piston rod 52 slowly moves into the cylinder body 51, making the door opening speed slow until the door body is fully opened. the

Door closing process: the door body 17 drives the hinge cup 1 to fold in the clockwise direction. When the hinge cup 1 is closed, it will drive the crankshaft 61 to rotate in the counterclockwise direction. The left end of the first sliding shaft hole 610 is in contact with the right end of the first sliding shaft hole 610. During this sliding process, the crankshaft 61 exerts very little force on the connecting arm 62, so the effect of the damper 5 is very small. The door body 17 closes faster; when the door body is closed at an angle that causes the hinge shaft 22 to contact the right end of the first sliding shaft hole 610, the crankshaft 61 exerts a greater force on the connecting arm 62, and the crankshaft 61 pulls the connection The arm 62 rotates clockwise around the hinge shaft 21, and the connecting arm 62 pulls the piston rod 52 to the left. Due to the damping effect of the damper, the piston rod 52 slowly extends out of the cylinder body 51, so that the closing speed becomes slower until the door body is fully closed. closure. the

If it is necessary to adjust the buffer time of closing and opening the door to realize changing the total time of opening and closing the door, by directly rotating the eccentric nail 101 to a certain angle, the adjusting piece 9 can be caused to move a certain small distance. At this time, the distance between the adjusting piece 9 and the shaft 23 The distance changes, thereby changing the movement time of the cylinder 51 . The smaller the movable distance of the cylinder body 51 is, the greater the sliding distance of the piston rod 52 relative to the cylinder body 51 is, the longer the buffering time of closing or opening the door is, and the longer the total time of closing or opening the door is; the cylinder body 51 can move left and right The larger the distance, the smaller the sliding distance of the piston rod 52 relative to the cylinder body 51, the shorter the buffering time for closing or opening the door, and the shorter the total time for closing or opening the door. the

Example 2

The structure of the adjustable damping hinge of this embodiment is similar to that of Embodiment 1, as shown in Figure 6, the difference is that the hinge hole corresponding to the crankshaft 61 on the connecting arm 62 is the second sliding shaft hole 620, during the opening and closing process, The hinged shaft 22 will slide in the second sliding shaft hole 620 on the connecting arm 62, but the hinged shaft 22 will not move in the hinged hole 610 on the crankshaft 61, and the hinged shaft 22 and the hinged hole 610 on the crankshaft 61 only Relative rotation will occur.

The working principle and usage mode of the adjustable damping hinge in this embodiment are similar to those in the embodiment. the

In the above embodiments, the same or similar symbols correspond to the same or similar components; the description of the positional relationship in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent. the

Apparently, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention. the

Claims (10)

1. An adjustable damping hinge, including hinge cup (1), connecting rod (2), hinge arm (3), base (4) and damper (5), crankshaft connector (6) and hinge cup (1) An elastic member (7) with closing force, the hinge arm (3) is adjustable and installed on the base (4), one end of the connecting rod (2) is hinged with the hinge cup (1), and the connecting rod (2) The other end of the hinge arm (3) is hinged, and the damper (5) is adjustable and installed between the base (4) and the hinge arm (3). It is characterized in that the crankshaft connector (6) includes a crankshaft ( 61) and the connecting arm (62), one end of the crankshaft (61) is hinged with the hinge cup (1), the other end of the crankshaft (61) is flexibly connected with the damper (5) through the connecting arm (62), and the crankshaft (61) The position between the two ends is also hinged with the hinge arm (3), and the connecting arm (62) is also hinged with the hinge arm (3), and the hinged position of the connecting arm (62) and the hinge arm (3), the crankshaft (61 ) and the connecting arm (62) and the connecting position between the connecting arm (62) and the damper (6) are respectively located at different positions of the connecting arm (62). 2. The adjustable damping hinge according to claim 1, characterized in that, the connecting arm (62) is hinged to the crankshaft (61) and the damper (6) respectively, and the connecting arm (62) and the hinge arm (3) The hinged position is between the hinged position of the crankshaft (61) and the connecting arm (62) and the connecting position of the connecting arm (62) and the damper (6), and the hinged position of the connecting arm (62) and the hinged arm (3), The hinged position of the crankshaft (61) and the connecting arm (62) and the connecting position of the connecting arm (62) and the damper (6) are not on the same straight line. 3. The adjustable damping hinge according to claim 2, characterized in that, the hinge hole corresponding to the connecting arm (62) on the crankshaft (61) is the first sliding shaft hole (610), and the crankshaft (61) and the The hinge shaft (22) hinged by the connecting arm (62) can move in the first sliding shaft hole (610). 4. The adjustable damping hinge according to claim 2, characterized in that, the hinge hole corresponding to the crankshaft (61) on the connecting arm (62) is the second sliding shaft hole (620), and the crankshaft (61) and The hinge shaft (22) hinged by the connecting arm (62) can move in the second sliding shaft hole (620). 5. The adjustable damping hinge according to any one of claims 1 to 4, characterized in that, a moving arm (8) is provided between the base (4) and the hinge arm (3), and the damper (5) Placed in the cavity formed by the base (4) and the movable arm (8), the movable arm (8) can move relative to the base (4) and the hinge arm (3). 6. The adjustable damping hinge according to claim 5, characterized in that, the damper (5) includes a cylinder (51), a piston rod (52) and a piston arranged in the cylinder (51), the piston One end of the rod (52) is connected to the piston, the other end of the piston rod (52) protrudes outside the cylinder (51), and the end of the piston rod (52) protruding from the cylinder (51) is connected to the connecting arm (62 ) is hinged, and the position of the cylinder body (51) in the cavity formed by the base (4) and the moving arm (8) is adjustable. 7. The adjustable damping hinge according to claim 6, characterized in that, there is a movable adjusting piece (9) in the cavity formed by the base (4) and the moving arm (8), and the adjusting piece ( One end of 9) is connected with the cylinder body (51) of the damper (5), and the other end of the regulating plate (9) is movably connected with the hinge arm (5). 8. The adjustable damping hinge according to claim 7, characterized in that, the outer wall of the cylinder (51) of the damper (5) is provided with a stopper (511), and the adjusting piece (9) and the damper (5) One end connected to the cylinder body (51) can contact with the stopper (511). 9. The adjustable damping hinge according to claim 7, characterized in that, one end of the adjusting piece (9) connected to the hinge arm (5) is hingedly connected to the hinge arm (5) through an eccentric nail (101). 10. The adjustable damping hinge according to any one of claims 1 to 4, characterized in that, the elastic member (7) is a torsion spring, and the torsion spring is set on the hinge between the connecting rod (2) and the hinge arm (3). On the shaft (21), the first and second protruding ends (71, 72) of the torsion spring respectively press the crankshaft (61) of the hinge arm (3) and the crankshaft connector (6), and the torsion spring passes through the crankshaft (61) Give the hinge cup (1) a closing force.

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