A type of American hinge

Abstract

This utility model belongs to the field of hinge technology, specifically disclosing an American-style hinge, including a fixed base, a movable base, a hinge arm, and a torsion spring. One end of the hinge arm is connected to the fixed base, and the other end of the hinge arm is hinged to the movable base via a hinge shaft. Positioning posts are provided on both side walls of the movable base. The torsion spring is sleeved on the positioning posts, with its first leg pressing on the hinge arm and its second leg secured to the movable base. By providing positioning posts on both side walls of the movable base, the torsion spring can be positioned and initially stabilized by first sleeved on the positioning posts during installation, facilitating installation. Furthermore, the large space on both sides of the movable base allows for easy operation, facilitating the pressing of the first leg of the torsion spring onto the hinge arm and the securing of the second leg to the movable base, improving production efficiency. During subsequent use of the hinge, the torsion spring maintains stable force, resulting in smoother hinge operation.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to an American-style hinge. Background Technology

[0002] Hinges are widely used hardware accessories in furniture, mainly used for the opening and closing connection of cabinet panels and door panels.

[0003] Currently, common American-style hinges on the market mainly consist of a fixed base, a movable base, a hinge arm, and a torsion spring. Generally, the fixed base is fixedly installed on the cabinet panel, the movable base is fixedly installed on the door panel, one end of the hinge arm connects to the fixed base, and the other end of the hinge arm is hinged to the movable base. The torsion spring is installed in the receiving groove of the movable base. However, in actual production, when installing the torsion spring, a pressure plate is needed to hold the torsion spring and damper in place. The pressure plate is then welded in place to prevent the torsion spring from loosening. However, due to the small space in the receiving groove and the lack of a structure to stabilize the torsion spring before welding the pressure plate, welding the pressure plate is cumbersome, resulting in low hinge production efficiency. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an American-style hinge that solves the problems of troublesome torsion spring installation and low hinge production efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an American-style hinge, including a fixed seat, a movable seat, a hinge arm and a torsion spring. One end of the hinge arm is connected to the fixed seat, and the other end of the hinge arm is hinged to the movable seat through a hinge shaft. Both sides of the movable seat are provided with positioning posts. The torsion spring is sleeved on the positioning posts. The first leg of the torsion spring presses on the hinge arm, and the second leg of the torsion spring is locked on the movable seat.

[0006] As a further embodiment, the movable seat is provided with a receiving groove, and the receiving groove is provided with a damper that can be driven by the hinge arm and a fixing member for fixing the damper.

[0007] As a further embodiment, the fixing element is a screw, with both ends of the screw screwed onto the two side walls of the receiving groove, and the screw pressing down on the damper.

[0008] As a further embodiment, the two side walls of the receiving groove are provided with locking holes that communicate with the receiving groove, and the second leg of the torsion spring is locked in the locking holes.

[0009] As a further embodiment, the articulated arm includes a connecting portion and a bushing portion integrally formed with one end of the connecting portion. The connecting portion is connected to a fixed base, and the bushing portion is fitted onto the articulated shaft. In the axial direction of the articulated shaft, the length of the bushing portion is greater than the length of the connecting portion. The first leg of the torsion spring presses on the bushing portion and is located on one side of the connecting portion.

[0010] As a further embodiment, the outer peripheral surface of the bushing includes a plane, an arc surface, and a circular surface connected end to end in sequence. In the radial direction, the radius of the connection between the plane and the arc surface is greater than the radius of the circular surface, and the connection between the plane and the arc surface faces the connecting part.

[0011] As a further embodiment, both sides of the receiving groove are integrally formed with grooves that are recessed into the receiving groove, the positioning post is disposed in the groove, the groove communicates with the receiving groove through a through hole, and the first leg of the torsion spring passes through the through hole and can be pressed on the plane or arc surface of the bushing.

[0012] The beneficial effects of this utility model are as follows: by setting positioning posts on both sides of the movable seat, the torsion spring can be positioned and initially stabilized by first fitting it onto the positioning posts during installation, which facilitates installation. In addition, the movable seat has a large space on both sides, which makes it easy for personnel to press the first leg of the torsion spring onto the hinge arm and the second leg of the torsion spring onto the movable seat, thereby improving production efficiency. Furthermore, the torsion spring can maintain stable force during subsequent use of the hinge, and the hinge is also easier to use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram (I) of an embodiment of the present utility model;

[0014] Figure 2 This is a three-dimensional schematic diagram (II) of an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the fixed base and the hinged arm in an embodiment of this utility model;

[0016] Figure 4 A schematic diagram (I) illustrating the actual application of this utility model embodiment;

[0017] Figure 5 This is a schematic diagram (II) illustrating the actual application of an embodiment of this utility model.

[0018] In the figure, 1-fixed seat, 2-movable seat, 21-accommodating groove, 22-groove, 23-through hole, 24-positioning hole, 3-hinged arm, 31-connecting part, 32-sleeve part, 321-plane, 322-arc surface, 323-circumferential surface, 4-torsion spring, 41-first support leg, 42-second support leg, 5-hinged shaft, 6-positioning post, 7-damper, 8-fixed component. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] It should be noted that the fixed seat 1 is installed and fixed on the cabinet panel, and the movable seat 2 is installed and fixed on the door panel.

[0021] As attached Figure 1-2 As shown, this utility model provides an American-style hinge, including a fixed base 1, a movable base 2, a hinge arm 3, and a torsion spring 4. One end of the hinge arm 3 is connected to the fixed base 1. This connection can be achieved by welding, screw connection, or the hinge arm 3 and the fixed base 1 being integrally formed. The other end of the hinge arm 3 is hinged to the movable base 2 via a hinge shaft 5. Both sides of the movable base 2 are provided with positioning posts 6, preferably welded. There are two torsion springs 4, which are respectively installed on the two sides of the movable base 2. The torsion springs 4 are sleeved on the positioning posts 6. The first leg 41 of the torsion spring 4 presses against the hinge arm 3, and the second leg 42 of the torsion spring 4 is engaged with the movable base 2.

[0022] By setting positioning posts 6 on both sides of the movable seat 2, the torsion spring 4 can be positioned and initially stabilized by first fitting it onto the positioning posts 6 during installation, which facilitates installation. The large space on both sides of the movable seat 2 also makes it easy for personnel to press the first leg 41 of the torsion spring 4 onto the hinge arm 3 and the second leg 42 of the torsion spring 4 onto the movable seat 2, improving production efficiency. Furthermore, the torsion spring 4 can maintain stable force during subsequent use of the hinge, and the hinge is also easier to use.

[0023] Furthermore, as shown in the appendix Figure 1As shown, the movable seat 2 has a receiving groove 21, and the receiving groove 21 contains a damper 7 that can be driven by the hinge arm 3 and a fixing member 8 for fixing the damper 7. During subsequent use of the hinge, the opening and closing of the door causes the hinge arm 3 to squeeze the damper 7, so that the damper 7 plays a damping and buffering role on the door. However, a fixing member 8 is also needed to fix the damper 7. Preferably, the fixing member 8 is a screw, with both ends of the screw screwed to the two side walls of the receiving groove 21, and the screw presses down on the damper 7, fixing it in place, which is convenient for installation. The fixing member 8 can also be a pressure plate, which is welded to the groove of the receiving groove 21, so as to press down on the damper 7 and fix it.

[0024] As one embodiment, see attached Figure 2 As shown, both sides of the receiving groove 21 are provided with locking holes 24 that communicate with the receiving groove 21, and the second leg 42 of the torsion spring 4 is locked in the locking hole 24. The locking hole 24 is an open hole structure, which is easier to manufacture than a blind hole structure, and at the same time, it can allow the second leg 42 of the torsion spring 4 to extend into the receiving groove 21, preventing the second leg 42 from falling off.

[0025] In the preferred embodiment, as shown in the appendix Figure 3 As shown, the articulated arm 3 includes a connecting part 31 and a bushing part 32 integrally formed with one end of the connecting part 31. The connecting part 31 is connected to the fixed base 1, and the bushing part 32 is sleeved on the articulated shaft 5. In the axial direction of the articulated shaft 5, the length of the bushing part 32 is greater than the length of the connecting part 31. There is space on the bushing part 32 so that the first foot 41 of the torsion spring 4 can press on the bushing part 32 and be located on one side of the connecting part 31. That is, the first feet 41 on both sides of the connecting part 31 press on the two ends of the bushing part 32 respectively, so that the articulated arm 3 remains stable under force.

[0026] As attached Figure 3 As shown, the outer peripheral surface of the bushing portion 32 includes a plane 321, an arc surface 322, and a circular surface 323 connected end to end. In the radial direction, the radius of the connection between the plane 321 and the arc surface 322 is larger than the radius of the circular surface 323, and the connection between the plane 321 and the arc surface 322 faces the connecting portion 31. Grooves 22 recessed into the receiving groove 21 are integrally formed on both side walls of the receiving groove 21. The positioning post 6 is disposed within the groove 22, thereby reducing the space occupied by the hinge. The groove 22 communicates with the receiving groove 21 through a through hole 23. The first leg 41 of the torsion spring 4 passes through the through hole 23 and can press against the plane 321 or the arc surface 322 of the bushing portion 32.

[0027] Brief working principle: Initially, the first leg 41 of the torsion spring 4 presses against the plane 321 of the bushing 32, and the second leg 42 of the torsion spring 4 is engaged in the locking hole 24. (See attached diagram) Figure 4As shown, when the door needs to be opened, the flat surface 321 of the bushing 32 generates a closing pull on the first leg 41 of the torsion spring 4, thus requiring a slight pull on the door. When the first leg 41 of the torsion spring 4 transitions from the connection point between the flat surface 321 and the curved surface 322 to the subsequent curved surface 322, as shown in the attached diagram... Figure 5 As shown, the curved surface 322 exerts a pushing force on the first leg 41 of the torsion spring 4, causing the door to open fully. When it is necessary to close the door, as shown in the attached diagram... Figure 5 As shown, the curved surface 322 exerts a pushing force on the first leg 41 of the torsion spring 4, therefore a slight force is needed to close the door. When the first leg 41 of the torsion spring 4 transitions from the connection between the curved surface 322 and the plane 321 to the subsequent plane 321, as shown in the attached figure... Figure 4 As shown, plane 321 forms a closed tension on the first leg 41 of torsion spring 4, and under the buffering effect of damper 7 on hinge arm 3, it plays a damping buffering role on the door body.

[0028] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An American hinge comprising a fixed seat (1), a movable seat (2), a hinge arm (3) and a torsion spring (4), one end of the hinge arm (3) being connected with the fixed seat (1), the other end of the hinge arm (3) being hinged with the movable seat (2) through a hinge shaft (5), characterized in that: The movable seat (2) has positioning posts (6) on both sides. The torsion spring (4) is sleeved on the positioning post (6). The first leg (41) of the torsion spring (4) presses on the hinge arm (3), and the second leg (42) of the torsion spring (4) is locked on the movable seat (2).

2. A frictionless American hinge according to claim 1, characterized in that: The movable seat (2) is provided with a receiving groove (21), and the receiving groove (21) is provided with a damper (7) that can be driven by the hinge arm (3) and a fastener (8) for fixing the damper (7).

3. The American-style hinge according to claim 2, characterized in that: The fixing member (8) is a screw, and the two ends of the screw are respectively screwed to the two side walls of the receiving groove (21), and the screw presses down on the damper (7).

4. The American-style hinge according to claim 2, characterized in that: The two side walls of the receiving groove (21) are provided with locking holes (24) that communicate with the receiving groove (21), and the second leg (42) of the torsion spring (4) is locked in the locking hole (24).

5. An American-style hinge according to claim 2, characterized in that: The hinge arm (3) includes a connecting part (31) and a bushing part (32) integrally formed with one end of the connecting part (31). The connecting part (31) is connected to the fixed seat (1). The bushing part (32) is sleeved on the hinge shaft (5). In the axial direction of the hinge shaft (5), the length of the bushing part (32) is greater than the length of the connecting part (31). The first leg (41) of the torsion spring (4) presses on the bushing part (32) and is located on one side of the connecting part (31).

6. An American-style hinge according to claim 5, characterized in that: The outer peripheral surface of the bushing portion (32) includes a plane (321), an arc surface (322), and a circular surface (323) connected end to end in sequence. In the radial direction, the radius of the connection between the plane (321) and the arc surface (322) is greater than the radius of the circular surface (323), and the connection between the plane (321) and the arc surface (322) faces the connecting portion (31).

7. An American-style hinge according to claim 6, characterized in that: The two side walls of the receiving groove (21) are integrally formed with grooves (22) that are recessed into the receiving groove (21). The positioning post (6) is disposed in the groove (22). The groove (22) communicates with the receiving groove (21) through the through hole (23). The first leg (41) of the torsion spring (4) passes through the through hole (23) and can press on the plane (321) or arc surface (322) of the bushing part (32).

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