Hinge arm damping structure

Abstract

The utility model discloses a hinge rotating arm buffer structure belongs to hinge technical field, including first mounting seat, first hinged rotating arm and buffer spring piece, first hinged rotating arm one end is hinged with first mounting seat, and buffer spring piece sets up in first mounting seat, and buffer spring piece includes base plate and elastic pressing plate, and elastic pressing plate is obliquely set up on base plate, and the end of first hinged rotating arm close to first mounting seat one end is equipped with buffer and top, and under the opening state, elastic pressing plate front end movable abut on buffer and top, and the rotation of first hinged rotating arm relative to first mounting seat is limited, relative to prior art, increase simple structure's buffer spring piece and buffer and top, under the opening state, through elastic pressing plate front end movable abut on buffer and top, and the rotation of first hinged rotating arm relative to first mounting seat is limited, thereby prevent external force trigger hinge springback, cause cabinet door to close due to accidental touch.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a hinge arm buffer structure. Background Technology

[0002] Hinges, as a basic mechanical connection component, are widely used in various situations where relative rotational movement between two parts is required.

[0003] Existing hinges, when the cabinet door is opened, can easily be accidentally triggered by external force pushing the door back, causing the door to suddenly spring back and close, posing a certain danger. Therefore, a simple and reliable structure is needed to prevent accidental hinge rebound due to external force. Utility Model Content

[0004] In order to overcome the defects of the existing technology, this utility model provides a hinged rotating arm buffer structure.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a hinged rotating arm buffer structure, comprising: First mounting base; A first hinged rotating arm, one end of which is hinged to a first mounting base; A buffer spring is disposed in a first mounting base. The buffer spring includes a base plate and a pressure plate, with the pressure plate being inclinedly disposed on the base plate. The end of the first hinged rotating arm near the first mounting base is provided with a buffer abutment. In the open state, the front end of the spring plate moves against the buffer abutment to restrict the rotation of the first hinged rotating arm relative to the first mounting base.

[0006] Preferably, the outer end of the spring plate is provided with a bend, and the base plate is mounted on the first mounting seat. In the open state, the bend moves to abut against the top of the buffer abutment.

[0007] Preferably, the first mounting base is provided with a sliding groove, the bottom of the sliding groove is provided with a locking groove, the inner sidewall of the sliding groove is provided with a positioning hole, the bottom of the substrate is provided with a buckle that cooperates with the locking groove, and the front end of the substrate is provided with a positioning protrusion that cooperates with the positioning hole.

[0008] Preferably, a limiting block is provided above the sliding groove, and the limiting block presses against the substrate.

[0009] Preferably, two sets of the limiting blocks are symmetrically arranged and are respectively opposite to the two sides of the positioning protrusion.

[0010] Preferably, the spring pressure plate is provided in two symmetrical sets, and a pressure bearing part is provided at the end of the base plate away from the positioning protrusion. The pressure bearing part is located between the two sets of spring pressure plates and extends away from the positioning protrusion.

[0011] Preferably, the buckle is located in the middle of the pressure-bearing part, and the pressure-bearing part is U-shaped.

[0012] Preferably, the buckle is inclined at the bottom of the substrate, and both the buckle and the spring plate are inclined toward the same side of the substrate.

[0013] Preferably, the substrate and the spring plate are formed by punching from a single sheet of material.

[0014] Preferably, the end of the first hinge arm near the first mounting base is an arc-shaped surface, and the buffer abutment is disposed on the arc-shaped surface in a stepped manner, with the stepped buffer abutment smoothly transitioning to the outer side through rounded corners.

[0015] The beneficial effects of this utility model are: compared with the prior art, the addition of a simple buffer spring and a buffer stop top, in the open state, the front end of the spring plate moves against the buffer stop top, restricting the rotation of the first hinge arm relative to the first mounting base, thereby preventing external force from triggering the hinge to spring back and causing the cabinet door to close due to accidental contact. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of the hinge in the open state according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of the hinge in the non-opening state according to an embodiment of the present invention; Figure 3 This is a side view of the first hinged rotating arm in an embodiment of the present invention; Figure 4 This is a perspective view of the first hinged rotating arm in an embodiment of the present utility model; Figure 5 This is a perspective view of the first mounting base in an embodiment of the present utility model; Figure 6 This is a cross-sectional structural diagram of the first mounting base in an embodiment of the present utility model; Figure 7 This is a cross-sectional view of the first mounting base in an embodiment of the present utility model; Figure 8 The three-dimensional buffer sheet in the embodiment of this utility model Figure 1 ; Figure 9 The three-dimensional buffer sheet in the embodiment of this utility model Figure 2 ; Figure 10 This is a cross-sectional view of the buffer spring sheet in an embodiment of the present invention; Figure 11 This is a cross-sectional schematic diagram of the assembly state of the buffer spring and the first mounting base in an embodiment of this utility model; Figure 12This is a schematic diagram illustrating the application of an embodiment of the present utility model.

[0017] In the figure, 10 is the first mounting base; 11 is the sliding groove; 12 is the snap-fit ​​groove; 13 is the positioning hole; 14 is the limiting block; 30 is the first hinged rotating arm; 31 is the buffer top; 32 is the arc-shaped surface; 40 is the buffer spring; 41 is the base plate; 42 is the buckle; 43 is the positioning protrusion; 44 is the pressure bearing part; 45 is the spring plate; and 46 is the bend. Detailed Implementation

[0018] 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.

[0019] As attached Figure 1-12 As shown, the present invention provides a hinged swivel arm buffer structure, comprising: First mounting base 10; The first hinged rotating arm 30 has one end hinged to the first mounting base 10; A buffer spring 40 is disposed in the first mounting base 10. The buffer spring 40 includes a base plate 41 and a spring plate 45. The spring plate 45 is inclinedly disposed on the base plate 41. The end of the first hinged rotating arm 30 near the first mounting base 10 is provided with a buffer abutment 31. In the open state, the front end of the spring plate 45 moves against the buffer abutment 31 to restrict the rotation of the first hinged rotating arm 30 relative to the first mounting base 10.

[0020] Specifically, when installing and using the hinge, the first mounting base 10 is installed on the cabinet door. During the opening of the cabinet door, as the hinge arm swings, the buffer abutment top 31 rotates towards the buffer spring 40 and simultaneously presses past the front end of the spring pressure plate 45. After the cabinet door is fully opened, the front end of the spring pressure plate 45 moves against the buffer abutment top 31 to form a damping limit. At this time, when an external force touches the cabinet door, it will simultaneously drive the hinge arm to swing at a slight angle. Since the front end of the spring pressure plate 45 remains moving against the buffer abutment top 31 in this state, the external force will be further transmitted to the spring pressure plate 45, causing the spring pressure plate 45 to deform. The deformation of the spring pressure plate 45 can effectively absorb the external force and buffer it, preventing the external force from triggering the hinge to rebound and causing the cabinet door to close due to accidental contact. The spring pressure plate 45 is inclined on the base plate 41, which can better relieve the force when it is pressed. Compared to existing technologies, the addition of a simple buffer spring 40 and a buffer abutment 31 allows the spring plate 45 to abut against the buffer abutment 31 in the open state, restricting the rotation of the first hinge arm 30 relative to the first mounting base 10. This prevents external forces from triggering the hinge to spring back and causing the cabinet door to close accidentally.

[0021] Furthermore, the outer end of the spring pressure plate 45 is provided with a bend 46, and the base plate 41 is mounted on the first mounting seat 10. In the open state, the bend 46 moves against the buffer abutment top 31. The bend 46 at the outer end of the spring pressure plate 45 can improve the structural strength and also prevent it from jamming with the buffer abutment top 31.

[0022] Furthermore, the first mounting base 10 is provided with a sliding groove 11, the bottom of the sliding groove 11 is provided with a snap-fit ​​groove 12, the inner side wall of the sliding groove 11 is provided with a positioning hole 13, the bottom of the substrate 41 is provided with a snap 42 that cooperates with the snap-fit ​​groove 12, and the front end of the substrate 41 is provided with a positioning protrusion 43 that cooperates with the positioning hole 13. When installing the buffer spring 40, it is only necessary to align the buffer spring 40 with the sliding groove 11 and push the buffer spring 40 inward so that the snap 42 snaps into the snap-fit ​​groove 12 and the positioning protrusion 43 is embedded in the positioning hole 13, which effectively reduces the assembly difficulty.

[0023] Furthermore, in order to improve the stability of the buffer spring 40 installation, a limiting block 14 is provided above the sliding groove 11. Two sets of limiting blocks 14 are symmetrically arranged and are respectively opposite to the two sides of the positioning protrusion 43. The limiting block 14 presses against the substrate 41. When the buffer spring 40 is pressed, the limiting block 14 can provide effective support for the substrate 41.

[0024] Furthermore, two sets of spring pressure plates 45 are symmetrically arranged. The end of the base plate 41 away from the positioning protrusion 43 is provided with a pressure bearing part 44. The pressure bearing part 44 is located between the two sets of spring pressure plates 45 and extends away from the positioning protrusion 43. Similarly, when the buffer spring 40 is compressed, the pressure bearing part 44 can effectively support the base plate 41. The buckle 42 is located in the middle of the pressure bearing part 44, and the pressure bearing part 44 is U-shaped.

[0025] Furthermore, the buckle 42 is inclinedly disposed at the bottom of the substrate 41, and both the buckle 42 and the spring plate 45 are inclined toward the same side of the substrate 41, so that when the spring plate 45 is pressed, the buckle 42 is simultaneously in a downward pressing state, which can effectively prevent the buckle 42 from coming out of the mounting groove 12 and improve the overall firmness.

[0026] Furthermore, in order to reduce processing difficulty and cost, after the buffer spring 40 adopts the above structure, the base plate 41 and the pressure plate 45 can be punched and formed from a whole piece of sheet material.

[0027] Furthermore, the end of the first hinged rotating arm 30 near the first mounting base 10 is an arc-shaped surface 32, and the buffer abutment top 31 is disposed on the arc-shaped surface 32 and is stepped. The stepped buffer abutment top 31 is smoothly transitioned to the outer side by rounded corners.

[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. A hinged rotating arm buffer structure, characterized in that, include: First mounting base (10); The first hinged rotating arm (30) has one end hinged to the first mounting base (10); A buffer spring (40) is disposed in a first mounting base (10). The buffer spring (40) includes a base plate (41) and a spring plate (45). The spring plate (45) is inclinedly disposed on the base plate (41). The first hinge arm (30) has a buffer abutment (31) at one end near the first mounting base (10). In the open state, the front end of the spring plate (45) moves against the buffer abutment (31) to restrict the rotation of the first hinge arm (30) relative to the first mounting base (10).

2. The hinged rotating arm buffer structure according to claim 1, characterized in that, The outer end of the spring plate (45) is provided with a bend (46), and the base plate (41) is installed on the first mounting seat (10). In the open state, the bend (46) moves against the buffer top (31).

3. The hinged rotating arm buffer structure according to claim 2, characterized in that, The first mounting base (10) is provided with a sliding groove (11), the bottom of the sliding groove (11) is provided with a snap-fit ​​groove (12), the inner side wall of the sliding groove (11) is provided with a positioning hole (13), the bottom of the substrate (41) is provided with a buckle (42) that cooperates with the snap-fit ​​groove (12), and the front end of the substrate (41) is provided with a positioning protrusion (43) that cooperates with the positioning hole (13).

4. The hinged rotating arm buffer structure according to claim 3, characterized in that, A limiting block (14) is provided above the sliding groove (11), and the limiting block (14) presses against the substrate (41).

5. The hinged rotating arm buffer structure according to claim 4, characterized in that, The limiting blocks (14) are symmetrically arranged in two sets, and are respectively opposite to the two sides of the positioning protrusion (43).

6. The hinged rotating arm buffer structure according to claim 3, characterized in that, Two sets of spring pressure plates (45) are symmetrically arranged. A pressure bearing part (44) is provided at one end of the base plate (41) away from the positioning protrusion (43). The pressure bearing part (44) is located between the two sets of spring pressure plates (45) and extends away from the positioning protrusion (43).

7. The hinged rotating arm buffer structure according to claim 6, characterized in that, The buckle (42) is located in the middle of the pressure-bearing part (44), which is U-shaped.

8. The hinged rotating arm buffer structure according to claim 3, characterized in that, The buckle (42) is inclinedly disposed at the bottom of the substrate (41), and both the buckle (42) and the spring plate (45) are inclined toward the same side of the substrate (41).

9. The hinged rotating arm buffer structure according to claim 2, characterized in that, The substrate (41) and the spring plate (45) are formed by punching from a single sheet of material.

10. The hinged rotating arm buffer structure according to claim 1, characterized in that, The end of the first hinged swing arm (30) near the first mounting base (10) is an arc-shaped surface (32), and the buffer abutment (31) is set on the arc-shaped surface (32) and is stepped. The stepped buffer abutment (31) is smoothly transitioned to the outside by rounded corners.

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