A hinge

Abstract

This invention discloses a hinge, belonging to the field of hinge technology, including a first mounting base, a second mounting base, a hinge arm, and a torsion spring. One end of the hinge arm is hinged to the first mounting base, and the other end of the hinge arm is connected to the second mounting base. The torsion spring is disposed on the first mounting base and has a first torsion arm and a second torsion arm. The first torsion arm is connected to the first mounting base, and the second torsion arm is in movable contact with the hinge arm. The first mounting base is provided with a guide chamber, and a buffer damping component is slidably disposed in the guide chamber. The first torsion arm is slidably connected to the buffer damping component, and the hinge arm can push the buffer damping component to slide. By sliding the first torsion arm to the buffer damping component, a guide limit is formed for the buffer damping component, replacing the conventional fixed structure, limiting the installation of the buffer damping component, and preventing the buffer damping component from falling off the first mounting base. Compared with the prior art, this invention not only improves the overall reliability of the hinge but also greatly simplifies the overall structure of the hinge.

Description

Technical Field

[0001] This invention relates to the field of hinge technology, and particularly to a hinge. 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] To achieve buffering and quiet operation during the rear closure, dampers are often incorporated into hinges to slow down and cushion the rotation of the hinged arm. However, in existing hinges, the damper installation is often unstable, and because the damper is mostly exposed, it is prone to detachment, leading to hinge failure, or causing abnormal noises during opening and closing due to looseness. Furthermore, additional fixing structures are required to secure the damper, making the overall structure more complex. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, the present invention provides a hinge.

[0005] The technical solution adopted by this invention to solve its technical problem is: a hinge, comprising:

[0006] First mounting base;

[0007] Second mounting base;

[0008] A hinged rotating arm, one end of which is hinged to a first mounting base, and the other end of which is connected to a second mounting base;

[0009] A torsion spring is provided on a first mounting base. The torsion spring has a first torsion arm and a second torsion arm. The first torsion arm is connected to the first mounting base, and the second torsion arm is movably abutted against a hinged rotating arm.

[0010] The first mounting base is provided with a guide chamber, and a buffer damping component is slidably disposed in the guide chamber. The first torsion arm is slidably connected to the buffer damping component, and the hinged rotating arm can push the buffer damping component to slide.

[0011] Preferably, the buffer damping assembly includes a guide slide and a damper disposed on the guide slide. The guide slide is slidably disposed in the guide chamber. The guide slide has a pushing surface at one end near the hinged rotating arm. The hinged rotating arm has a pushing arc surface that cooperates with the pushing surface.

[0012] The guide slide is provided with guide grooves on both sides, and the first torsion arm is slidably connected to the guide grooves.

[0013] Preferably, the hinge also includes a cover, the guide chamber has an opening, the guide slide and damper can be inserted into the guide chamber from the opening, the guide grooves are respectively opposite to the sides of the guide chamber, and the cover is fitted onto the first mounting base.

[0014] Preferably, the guide grooves on both sides of the guide slide are horizontally connected, the torsion spring is a single torsion spring or a double torsion spring, and the pushing surface is an inclined surface.

[0015] Preferably, the hinged rotating arm has abutment protrusions on both sides, and the second torsion arm moves in contact with the abutment protrusions.

[0016] Preferably, the abutting protrusion has a first abutting surface and a second abutting surface on both sides that cooperate with the second torsion arm.

[0017] Preferably, the hinge also includes a fixed seat, which has a mounting chamber for mounting a first mounting seat. An eccentric bolt is locked onto the first mounting seat, and the fixed seat has a strip-shaped adjustment hole that mates with the eccentric bolt. The front end of the eccentric bolt passes through the strip-shaped adjustment hole.

[0018] The fixing base has fixing screw holes on both sides, and the first mounting base has strip-shaped guide holes on both sides that cooperate with the fixing screw holes.

[0019] Preferably, the fixed base has a shaft hole, through which the rotating shaft passes and is connected to the hinged rotating arm. The hinged rotating arm is hinged to the first mounting base through the rotating shaft.

[0020] Preferably, the two side walls of the mounting chamber cover the two sides of the first mounting seat, and the two sides of the first mounting seat limit the torsion spring.

[0021] Preferably, the outer side of the first mounting base is provided with a slot for accommodating the torsion spring body, and a through hole is provided between the slot and the guide chamber, through which the first torsion arm passes into the guide chamber.

[0022] The beneficial effects of this invention are as follows: by sliding the first torsion arm to the buffer damping assembly, a guide limit is formed on the buffer damping assembly, replacing the conventional fixed structure, and limiting the installation of the buffer damping assembly to prevent it from falling off the first mounting seat. Compared with the prior art, by using the torsion spring as an essential functional component to limit the installation of the buffer damping assembly, the overall reliability of the hinge is improved, and the overall structure of the hinge is greatly simplified, thereby improving the overall processing and production efficiency. While improving product performance, it can also bring significant economic benefits. Attached Figure Description

[0023] Figure 1 Three-dimensional representation of an embodiment of the present invention Figure 1 (Spindle omitted);

[0024] Figure 2 Three-dimensional representation of an embodiment of the present invention Figure 2 ;

[0025] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present invention;

[0026] Figure 4 This is a partial explosion diagram of an embodiment of the present invention;

[0027] Figure 5 This is an exploded view diagram of an embodiment of the present invention;

[0028] Figure 6 This is a three-dimensional view of the first mounting base and the hinged rotating arm assembled in an embodiment of the present invention. Figure 1 ;

[0029] Figure 7 This is a three-dimensional view of the first mounting base and the hinged rotating arm assembled in an embodiment of the present invention. Figure 2 ;

[0030] Figure 8 This is a side view of the first mounting base and the hinged rotating arm in the assembly state in an embodiment of the present invention;

[0031] Figure 9 This is a partially exploded view of the first mounting base and the hinged rotating arm in Embodiment 1 of the present invention;

[0032] Figure 10 This is a schematic diagram of the assembly of the buffer damping component and the torsion spring in Embodiment 1 of the present invention;

[0033] Figure 11 This is a schematic diagram of the assembly of the buffer damping component and the torsion spring in Embodiment 2 of the present invention;

[0034] Figure 12 This is a perspective view of the buffer damping component in an embodiment of the present invention;

[0035] Figure 13 This is a partial schematic diagram of the hinged rotating arm in an embodiment of the present invention;

[0036] Figure 14 This is a perspective view of the first mounting base in an embodiment of the present invention;

[0037] Figure 15 The three-dimensional form of the fixing base in the embodiment of the present invention Figure 1 ;

[0038] Figure 16 The three-dimensional form of the fixing base in the embodiment of the present invention Figure 2 .

[0039] In the figure, 10 is the first mounting base; 11 is the guide chamber; 12 is the eccentric bolt; 13 is the strip-shaped guide hole; 14 is the slot; 15 is the through hole; 21 is the guide slide; 22 is the guide groove; 23 is the pushing surface; 24 is the damper; 30 is the second mounting base; 40 is the hinged swing arm; 41 is the pushing arc surface; 42 is the abutting protrusion; 43 is the first abutting surface; 44 is the second abutting surface; 45 is the central protrusion; 50 is the torsion spring; 51 is the first torsion arm; 52 is the second torsion arm; 60 is the cover; 70 is the fixing base; 71 is the mounting chamber; 72 is the strip-shaped adjustment hole; 73 is the fixing screw hole; and 74 is the shaft hole. Detailed Implementation

[0040] The specific embodiments of the present invention 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 the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] As attached Figure 1-10 As shown in Figures 12-16 (rotating shaft omitted), the present invention provides a hinge comprising:

[0043] First mounting base 10;

[0044] Second mounting base 30;

[0045] The hinged rotating arm 40 is hinged at one end to the first mounting base 10 and at the other end to the second mounting base 30.

[0046] Torsion spring 50 is mounted on first mounting base 10. Torsion spring 50 has first torsion arm 51 and second torsion arm 52. First torsion arm 51 is connected to first mounting base 10 and second torsion arm 52 is movably abutted against hinged rotating arm 40.

[0047] The first mounting base 10 is provided with a guide chamber 11, and a buffer damping component is slidably disposed in the guide chamber 11. The first torsion arm 51 is slidably connected to the buffer damping component, and the hinged rotating arm 40 can push the buffer damping component to slide.

[0048] Specifically, taking a cabinet as an example, when installing and using hinges, the first mounting base 10 is installed on the cabinet door and the second mounting base 30 is installed on the cabinet body. During the opening and closing process, the cabinet door is assisted by the torsion spring 50 to swing. When closing, the hinge arm 40 pushes the buffer damping group to slide, thereby decelerating and buffering through the buffer damping component.

[0049] In this design, after the torsion spring 50 is installed into the first mounting base 10, the first torsion arm 51 of the torsion spring 50 protrudes towards the buffer damping assembly and remains stationary relative to the first mounting base 10. The front end of the first torsion arm 51 is inserted into the buffer damping assembly, thereby slidably connecting with the buffer damping assembly. By slidably connecting the first torsion arm 51 with the buffer damping assembly, a guide limit is formed on the buffer damping assembly, allowing the buffer damping assembly to slide back and forth in only one direction. This replaces the conventional fixed structure, limiting the installation of the buffer damping assembly and preventing it from falling out of the first mounting base 10. Compared with the prior art, by using the torsion spring 50 as a necessary functional component to limit the installation of the buffer damping assembly, the overall reliability of the hinge is improved, and the overall structure of the hinge is greatly simplified, thereby improving the overall processing and production efficiency. While improving product performance, it can also bring significant economic benefits.

[0050] Furthermore, the buffer damping assembly includes a guide slide 21 and a damper 24 disposed on the guide slide 21. The guide slide 21 is slidably disposed in the guide chamber 11. The guide slide 21 has a pushing surface 23 at one end near the hinge arm 40. The hinge arm 40 has a pushing arc surface 41 that cooperates with the pushing surface 23. Specifically, when closing the cabinet door, the hinge arm 40 rotates until the pushing arc surface 41 contacts the pushing surface 23. Then, the hinge arm 40 simultaneously pushes the guide slide 21 to slide away from the hinge arm 40, thereby compressing the piston rod of the damper 24 and slowing down and buffering the closing of the cabinet door.

[0051] The guide slide 21 has guide grooves 22 on both sides. After the torsion spring 50 is installed into the first mounting seat 10, the first torsion arm 51 of the torsion spring 50 protrudes to one side of the guide slide 21 and remains stationary relative to the first mounting seat 10. The front end of the first torsion arm 51 is inserted into the guide groove 22 of the guide slide 21, so that the first torsion arm 51 is slidably connected to the guide groove 22. The guide slide 21 is guided and limited by the first torsion arm 51 and the guide groove 22, so that the guide slide 21 can only slide back and forth in a single direction, thus preventing the damper 24 from falling out of the first mounting seat 10.

[0052] Furthermore, the hinge also includes a cover 60, and the guide chamber 11 has an opening. During assembly, the guide slide 21 and the damper 24 can be inserted into the guide chamber 11 through the opening. The guide slide 22 is opposite to the sides of the guide chamber 11 on both sides. The cover 60 covers the first mounting base 10.

[0053] Furthermore, the torsion spring 50 is a single torsion spring, and two sets are symmetrically arranged. The pushing surface 23 is an inclined surface. When a single torsion spring is used, the torsion spring 50 can be directly inserted into the first mounting base 10 from both sides, and the front end of the first torsion arm 51 can be inserted into the guide chamber 11. The front end of the first torsion arm 51 is slidably connected to the guide groove 22.

[0054] Furthermore, the hinge arm 40 has abutment protrusions 42 on both sides, and the second torsion arm 52 moves in contact with the abutment protrusions 42. The abutment protrusions 42 have a first abutment surface 43 and a second abutment surface 44 on both sides, which cooperate with the second torsion arm 52. A central protrusion 45 is formed between the first abutment surface 43 and the second abutment surface 44. When the central protrusion 45 is perpendicular to the second torsion arm 52, the torsion spring 50 is in a balanced state relative to the hinge arm 40. When the second torsion arm 52 tends to move towards the first abutment surface 43 or the second abutment surface 44, the torsion spring 50 is in an unbalanced state relative to the hinge arm 40. The second torsion arm 52 will press the abutment protrusion 42, causing the first mounting base 10 to rotate relative to the hinge arm 40, that is, tending to open or close.

[0055] Furthermore, the hinge also includes a fixed seat 70, which has a mounting chamber 71 for mounting the first mounting seat 10. An eccentric bolt 12 is locked onto the first mounting seat 10. The fixed seat 70 has a strip-shaped adjustment hole 72 that mates with the eccentric bolt 12. The front end of the eccentric bolt 12 passes through the strip-shaped adjustment hole 72.

[0056] The fixed base 70 has fixed screw holes 73 on both sides, and the first mounting base 10 has strip-shaped guide holes 13 on both sides that cooperate with the fixed screw holes 73;

[0057] During installation, the first mounting base 10 is first inserted into the fixing base 70, and then the fixing base 70 is inserted into the pre-drilled slot on the cabinet door. The bolt is inserted through the fixing screw hole 73 and then through the strip guide hole 13 to lock the fixing base 70 onto the cabinet door. By turning the eccentric bolt 12 and cooperating with the guide hole 13 and the fixing bolt, the position of the first mounting base 10 can be finely adjusted to ensure that the cabinet door can close smoothly with the cabinet body. The cover 60 can cover the fixing screw hole 73.

[0058] Furthermore, the fixed base 70 has a shaft hole 74, through which the rotating shaft passes and is connected to the hinged rotating arm 40. The hinged rotating arm 40 is hinged to the first mounting base 10 via the rotating shaft.

[0059] Furthermore, in order to prevent the second torsion arm 52 of the torsion spring 50 from misaligning with the abutting protrusion 42, the two side walls of the mounting chamber 71 respectively cover the two sides of the first mounting base 10, and the two sides of the first mounting base 10 limit the torsion spring 50.

[0060] Furthermore, the outer side of the first mounting base 10 is provided with a slot 14 for accommodating the spring body of the torsion spring 50. A through hole 15 is provided between the slot 14 and the guide chamber 11. When installing the torsion spring 50, the torsion spring 50 is inserted from both sides of the first mounting base 10, and the spring body of the torsion spring 50 is placed into the slot 14. The front end of the first torsion arm 51 is inserted into the guide chamber 11 through the through hole 15, thereby slidingly connecting with the guide groove 22.

[0061] Example 2

[0062] As attached Figure 11 As shown, the difference between this embodiment and the above embodiment is that the guide grooves 22 on both sides of the guide slide 21 are horizontally connected, and the torsion spring 50 is a double torsion spring.

[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention 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 the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A hinge, characterized in that, include: First mounting base (10); Second mounting bracket (30); A hinged rotating arm (40) is provided, with one end of the hinged rotating arm (40) hinged to the first mounting base (10) and the other end of the hinged rotating arm (40) connected to the second mounting base (30). Torsion spring (50), the torsion spring (50) is provided on the first mounting base (10), the torsion spring (50) has a first torsion arm (51) and a second torsion arm (52), the first torsion arm (51) is connected to the first mounting base (10), and the second torsion arm (52) is in movable contact with the hinged rotating arm (40); The first mounting base (10) is provided with a guide chamber (11), and a buffer damping component is slidably arranged in the guide chamber (11). The first torsion arm (51) is slidably connected to the buffer damping component, and the hinged rotating arm (40) can push the buffer damping component to slide. The buffer damping assembly includes a guide slide (21) and a damper (24) disposed on the guide slide (21). The guide slide (21) is slidably disposed in the guide chamber (11). The guide slide (21) has a pushing surface (23) at one end near the hinged rotating arm (40). The hinged rotating arm (40) has a pushing arc surface (41) that cooperates with the pushing surface (23). The guide slide (21) has guide grooves (22) on both sides, and the first torsion arm (51) is slidably connected to the guide grooves (22).

2. The hinge according to claim 1, characterized in that, It also includes a cover (60), the guide chamber (11) has an opening, the guide slide (21) and the damper (24) can be inserted into the guide chamber (11) from the opening, the guide groove (22) is opposite to the side of the guide chamber (11) respectively, and the cover (60) covers the first mounting base (10).

3. The hinge according to claim 1, characterized in that, The guide grooves (22) on both sides of the guide slide (21) are horizontally connected, the torsion spring (50) is a single torsion spring or a double torsion spring, and the pushing surface (23) is an inclined surface.

4. The hinge according to claim 1, characterized in that, The hinged rotating arm (40) has abutment protrusions (42) on both sides, and the second torsion arm (52) is in movable contact with the abutment protrusions (42).

5. The hinge according to claim 4, characterized in that, The abutting protrusion (42) has a first abutting surface (43) and a second abutting surface (44) on both sides, which cooperate with the second torsion arm (52).

6. The hinge according to claim 1, characterized in that, It also includes a fixing seat (70), which has an installation chamber (71) for installing a first mounting seat (10). An eccentric bolt (12) is locked on the first mounting seat (10). The fixing seat (70) has a strip-shaped adjustment hole (72) that cooperates with the eccentric bolt (12). The front end of the eccentric bolt (12) passes through the strip-shaped adjustment hole (72). The fixing seat (70) has fixing screw holes (73) on both sides, and the first mounting seat (10) has strip guide holes (13) on both sides that cooperate with the fixing screw holes (73).

7. The hinge according to claim 6, characterized in that, The fixed base (70) has a shaft hole (74), the rotating shaft passes through the shaft hole (74) and is connected to the hinged rotating arm (40), and the hinged rotating arm (40) is hinged to the first mounting base (10) through the rotating shaft.

8. The hinge according to claim 6, characterized in that, The two side walls of the mounting chamber (71) respectively cover the two sides of the first mounting base (10), and the torsion spring (50) is limited by the two sides of the first mounting base (10).

9. The hinge according to claim 1, characterized in that, The first mounting base (10) has a slot (14) on the outside for accommodating the spring body of the torsion spring (50). A through hole (15) is provided between the slot (14) and the guide chamber (11). The first torsion arm (51) passes through the through hole (15) into the guide chamber (11).

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