Hinge

Abstract

The invention discloses a hinge, which belongs to the technical field of hinges, and comprises a first mounting seat, a second mounting seat, a hinged rotating arm and a torsion spring, one end of the hinged rotating arm is hinged with the first mounting seat, the other end of the hinged rotating arm is connected with the second mounting seat, the torsion spring is arranged on the first mounting seat, and the torsion spring is provided with a first torsion arm and a second torsion arm; the first torsion arm is connected with the first mounting base, the second torsion arm movably abuts against the hinge rotating arm, a guide cavity is formed in the first mounting base, a buffer damping assembly is slidably arranged in the guide cavity, the first torsion arm is slidably connected with the buffer damping assembly, and the hinge rotating arm can push the buffer damping assembly to slide. The first torsion arm is in sliding connection with the buffer damping assembly, guide limiting is formed for the buffer damping assembly, a conventional fixing structure is replaced, the buffer damping assembly is installed in a limiting mode, the buffer damping assembly is prevented from falling off from the first installation base, and compared with the prior art, the overall reliability of the hinge is improved, and the service life of the hinge is prolonged. And the overall structure of the hinge is greatly simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and in particular to a hinge. Background Art

[0002] As a basic mechanical connection component, hinges are widely used in various occasions where relative rotational motion between two parts is required.

[0003] To achieve a smooth and silent closing of the rear section, a damper is often installed in the hinge to decelerate and cushion the rearward rotation of the hinged arm. However, in existing hinges, damper installation is relatively unstable. Since the damper is often directly exposed, it is prone to falling off, causing hinge failure or looseness, resulting in unusual noise during opening and closing. Furthermore, additional fixing structures are required to secure the damper, making the overall structure more complex. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides a hinge.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a hinge comprising: a first mounting seat; a second mounting base; An articulated arm, one end of which is hinged to the first mounting base, and the other end of which is connected to the second mounting base; A torsion spring, the torsion spring being arranged on the first mounting seat, the torsion spring having a first torsion arm and a second torsion arm, the first torsion arm being connected to the first mounting seat, and the second torsion arm being movably abutted against the hinged arm; A guide chamber is provided on the first mounting seat, a buffer damping assembly is slidably provided in the guide chamber, the first torsion arm is slidably connected to the buffer damping assembly, and the articulated rotating arm can push the buffer damping assembly to slide.

[0006] Preferably, the buffer damping assembly includes a guide slide and a damper arranged on the guide slide, the guide slide is slidably arranged in the guide chamber, the guide slide is provided with a push surface near one end of the hinged arm, and the hinged arm is provided with a push arc surface that cooperates with the push surface; Guide slots are provided on both sides of the guide slide, and the first torsion arm is slidably connected to the guide slots.

[0007] Preferably, the hinge further comprises a cover, the guide chamber is provided with an opening, the guide slide and the damper can be loaded into the guide chamber from the opening, the guide slide grooves are respectively opposite to the sides of the guide chamber, and the cover is covered on the first mounting seat.

[0008] Preferably, the guide slots on both sides of the guide slide seat are transversely connected, the torsion spring is a single torsion spring or a double torsion spring, and the push surface is an inclined surface.

[0009] Preferably, abutment protrusions are provided on both sides of the hinged rotating arm, and the second torsion arm is movably abutted against the abutment protrusions.

[0010] Preferably, a first abutting surface and a second abutting surface cooperating with the torsion arm are respectively provided on both sides of the abutting protrusion.

[0011] Preferably, the hinge further comprises a fixing seat, wherein the fixing seat is provided with a mounting chamber for mounting the first mounting seat, the first mounting seat is locked with an eccentric bolt, the fixing seat is provided with a strip-shaped adjustment hole cooperating with the eccentric bolt, and the front end of the eccentric bolt passes through the strip-shaped adjustment hole; The fixing seat is provided with fixing screw holes on both sides, and the first mounting seat is provided with strip-shaped guide holes matching the fixing screw holes on both sides.

[0012] Preferably, the fixing seat is provided with an axial hole, the rotating shaft passes through the axial hole and is connected to the hinged rotating arm, and the hinged rotating arm is hinged to the first mounting seat through the rotating shaft.

[0013] Preferably, the two side walls of the installation chamber respectively cover the two sides of the first installation seat, and the two sides of the first installation seat form a limit for the torsion spring.

[0014] Preferably, a slot for accommodating a torsion spring body is provided on the outer side of the first mounting seat, a through hole is provided between the slot and the guide cavity, and the first torsion arm passes through the through hole into the guide cavity.

[0015] The beneficial effects of the present invention are: by slidingly connecting the first torsion arm with the buffer damping assembly, a guide limit is formed for the buffer damping assembly, replacing the conventional fixed structure, and the buffer damping assembly is limitedly installed to prevent the buffer damping assembly from falling off from the first mounting seat. Compared with the existing technology, the buffer damping assembly is limitedly installed by using the torsion spring, a necessary functional part, which not only improves the overall reliability of the hinge, but also greatly simplifies the overall structure of the hinge, thereby improving the overall processing and production efficiency, and can simultaneously bring significant economic benefits while improving product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The embodiment of the present invention is a stereo Figure 1 (Omit the shaft); Figure 2 The embodiment of the present invention is a stereo Figure 2 ; Figure 3 A schematic cross-sectional view of an embodiment of the present invention; Figure 4 A partial explosion diagram of an embodiment of the present invention; Figure 5 An exploded diagram of an embodiment of the present invention; Figure 6 The three-dimensional diagram of the assembled state of the first mounting base and the articulated rotating arm in the embodiment of the present invention is shown as follows: Figure 1 ; Figure 7 The three-dimensional diagram of the assembled state of the first mounting base and the articulated rotating arm in the embodiment of the present invention is shown as follows: Figure 2 ; Figure 8 A side view of the assembled state of the first mounting base and the articulated arm in an embodiment of the present invention; Figure 9 This is a partial exploded schematic diagram of the first mounting base and the hinged rotating arm in the first embodiment of the present invention; Figure 10 Schematic diagram of the assembly of the buffer damping assembly and the torsion spring in the first embodiment of the present invention; Figure 11 Schematic diagram of the assembly of the buffer damping assembly and the torsion spring in the second embodiment of the present invention; Figure 12 is a three-dimensional diagram of a buffer damping assembly according to an embodiment of the present invention; Figure 13 is a partial schematic diagram of an articulated rotating arm in an embodiment of the present invention; Figure 14 is a three-dimensional diagram of a first mounting base in an embodiment of the present invention; Figure 15 The three-dimensional structure of the fixing seat in the embodiment of the present invention Figure 1 ; Figure 16 The three-dimensional structure of the fixing seat in the embodiment of the present invention Figure 2 .

[0017] In the figure, 10, first mounting seat; 11, guide chamber; 12, eccentric bolt; 13, strip guide hole; 14, slot; 15, through hole; 21, guide slide; 22, guide slide; 23, push surface; 24, damper; 30, second mounting seat; 40, hinged arm; 41, push arc surface; 42, abutment convex portion; 43, first abutment surface; 44, second abutment surface; 45, center convex portion; 50, torsion spring; 51, first torsion arm; 52, second torsion arm; 60, cover; 70, fixing seat; 71, mounting chamber; 72, strip adjustment hole; 73, fixing screw hole; 74, shaft hole. DETAILED DESCRIPTION

[0018] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0019] Example 1 As attached Figure 1-10 , 12-16 (the rotating shaft is omitted), the present invention provides a hinge comprising: First mounting seat 10; Second mounting seat 30; An articulated arm 40, one end of the articulated arm 40 is hinged to the first mounting base 10, and the other end of the articulated arm 40 is connected to the second mounting base 30; The torsion spring 50 is provided on the first mounting seat 10 and has a first torsion arm 51 and a second torsion arm 52. The first torsion arm 51 is connected to the first mounting seat 10, and the second torsion arm 52 is movably abutted against the hinged arm 40. A guide chamber 11 is provided on the first mounting seat 10 , and a buffer damping assembly is slidably provided in the guide chamber 11 . The first torsion arm 51 is slidably connected to the buffer damping assembly, and the articulated rotating arm 40 can push the buffer damping assembly to slide.

[0020] Specifically, taking a cabinet as an example, when installing and using the hinge, the first mounting seat 10 is installed on the cabinet door, and the second mounting seat 30 is installed on the cabinet body. During the opening and closing process, the cabinet door is driven to swing with the assistance of the torsion spring 50, and when closing, the articulated arm 40 will push the buffer damping group to slide, thereby slowing down and buffering through the buffer damping component.

[0021] Among them, after the torsion spring 50 is installed in the first mounting seat 10, the first torsion arm 51 of the torsion spring 50 protrudes to one side of the buffer damping assembly and remains stationary relative to the first mounting seat 10. The front end of the first torsion arm 51 is inserted into the buffer damping assembly, thereby being slidably connected to the buffer damping assembly. By slidably connecting the first torsion arm 51 with the buffer damping assembly, a guide limit is formed for the buffer damping assembly, so that the buffer damping assembly can only slide back and forth in a single direction, replacing the conventional fixed structure, and limiting the installation of the buffer damping assembly to prevent the buffer damping assembly from falling off from the first mounting seat 10. Compared with the existing technology, the buffer damping assembly is limitedly installed by using the necessary functional part of the torsion spring 50, which not only improves the overall reliability of the hinge, but also greatly simplifies the overall structure of the hinge, thereby improving the overall processing and production efficiency. While improving product performance, it can also bring significant economic benefits at the same time.

[0022] Furthermore, the buffer damping assembly includes a guide slide 21 and a damper 24 provided on the guide slide 21. The guide slide 21 is slidably provided in the guide chamber 11. The guide slide 21 is provided with a push surface 23 at one end close to the hinged arm 40. The hinged arm 40 is provided with a push arc surface 41 that cooperates with the push surface 23. Specifically, when closing the cabinet door, the hinged arm 40 rotates until the push arc surface 41 contacts the push surface 23. The hinged arm 40 synchronously pushes the guide slide 21 to slide away from the hinged arm 40, thereby compressing the piston rod of the damper 24, thereby slowing down and buffering the closing of the cabinet door. Guide grooves 22 are provided on both sides of the guide slide 21. After the torsion spring 50 is installed in 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 cooperating with the guide groove 22, so that the guide slide 21 can only slide back and forth in a single direction, thereby preventing the damper 24 from falling off from the first mounting seat 10.

[0023] Furthermore, the hinge also includes a cover 60, and the guide chamber 11 is provided with an opening. During assembly, the guide slide 21 and the damper 24 can be inserted into the guide chamber 11 from the opening, and the guide slide 22 is respectively opposite to the side edges of the guide chamber 11, and the cover 60 is covered on the first mounting seat 10.

[0024] Furthermore, the torsion spring 50 adopts a single torsion spring, and two groups are symmetrically arranged. The push surface 23 is an inclined surface. When a single torsion spring is used, the torsion spring 50 can be directly installed into the first mounting seat 10 from both sides of the first mounting seat 10, and the front end of the first torsion arm 51 is inserted into the guide chamber 11, and the front end of the first torsion arm 51 is slidably connected to the guide groove 22.

[0025] Furthermore, abutment protrusions 42 are provided on both sides of the articulated arm 40, and the second torsion arm 52 is movably abutted against the abutment protrusions 42. A first abutment surface 43 and a second abutment surface 44 cooperating with the torsion arm are respectively provided on both sides of the abutment protrusion 42. A central protrusion 45 is formed between the first abutment surface 43 and the second abutment surface 44. When the central protrusion 45 is vertically abutted against the second torsion arm 52, the torsion spring 50 is in a balanced state relative to the articulated arm 40. When the second torsion arm 52 tends to the first abutment surface 43 or the second abutment surface 44, the torsion spring 50 is in an unbalanced state relative to the articulated arm 40, and the second torsion arm 52 will press the abutment protrusion 42, so that the first mounting seat 10 rotates relative to the articulated arm 40, that is, tends to open or close.

[0026] Furthermore, the hinge further includes a fixing base 70, which has a mounting chamber 71 therein for mounting the first mounting base 10. The first mounting base 10 is locked with an eccentric bolt 12. The fixing base 70 is provided with a strip-shaped adjustment hole 72 that cooperates with the eccentric bolt 12, and the front end of the eccentric bolt 12 passes through the strip-shaped adjustment hole 72. The fixing base 70 is provided with fixing screw holes 73 on both sides, and the first mounting base 10 is provided with strip-shaped guide holes 13 on both sides that match the fixing screw holes 73; During installation, first install the first mounting base 10 into the fixing base 70, and then install the fixing base 70 into the pre-dug slot on the cabinet door. The bolt is inserted into the fixing screw hole 73 and then passes through the strip guide hole 13 to lock the fixing base 70 on the cabinet door. By turning the eccentric bolt 12 and coordinating the guidance of the strip guide hole 13 and the fixing bolt, the position of the first mounting base 10 can be fine-tuned to ensure that the cabinet door can be closed flatly with the cabinet body, and the cover 60 can cover the fixing screw hole 73.

[0027] Furthermore, an axis hole 74 is formed on the fixing seat 70 , and the rotating shaft passes through the axis hole 74 and is connected to the hinged rotating arm 40 . The hinged rotating arm 40 is hinged to the first mounting seat 10 through the rotating shaft.

[0028] Furthermore, in order to prevent the second torsion arm 52 of the torsion spring 50 from being misaligned with the abutting protrusion 42 , the two side walls of the installation chamber 71 respectively cover the two sides of the first installation seat 10 , and the two sides of the first installation seat 10 limit the torsion spring 50 .

[0029] Furthermore, a slot 14 for accommodating the spring body of the torsion spring 50 is provided on the outer side of the first mounting seat 10, and 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 installed from both sides of the first mounting seat 10, and the spring body of the torsion spring 50 is placed in the slot 14. The front end of the first torsion arm 51 passes through the through hole 15 into the guide chamber 11, thereby being slidably connected with the guide groove 22.

[0030] Example 2 As attached Figure 11 As shown, the difference between this embodiment and the above embodiment is that the guide slots 22 on both sides of the guide slide 21 are horizontally connected, and the torsion spring 50 adopts a double torsion spring.

[0031] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A hinge, characterized in that: include: a first mounting seat (10); A second mounting seat (30); An articulated rotating arm (40), wherein one end of the articulated rotating arm (40) is articulated to the first mounting seat (10), and the other end of the articulated rotating arm (40) is connected to the second mounting seat (30); A torsion spring (50), the torsion spring (50) being arranged on the first mounting seat (10), the torsion spring (50) comprising a first torsion arm (51) and a second torsion arm (52), the first torsion arm (51) being connected to the first mounting seat (10), and the second torsion arm (52) being movably abutted against the hinged rotating arm (40); A guide chamber (11) is provided on the first mounting seat (10), a buffer damping assembly is slidably provided in the guide chamber (11), the first torsion arm (51) is slidably connected to the buffer damping assembly, and the hinged rotating arm (40) can push the buffer damping assembly to slide.

2. The hinge according to claim 1, characterized in that The buffer damping assembly includes a guide slide (21) and a damper (24) arranged on the guide slide (21); the guide slide (21) is slidably arranged in the guide chamber (11); a push surface (23) is provided at one end of the guide slide (21) close to the hinged arm (40); and a push arc surface (41) is provided on the hinged arm (40) that cooperates with the push surface (23); Guide slots (22) are provided on both sides of the guide slide (21), and the first torsion arm (51) is slidably connected to the guide slots (22).

3. The hinge according to claim 2, characterized in that The guide chamber (11) further includes a cover (60), wherein the guide chamber (11) is provided with an opening, and the guide slide (21) and the damper (24) can be installed into the guide chamber (11) from the opening, and the guide slots (22) are respectively opposite to the sides of the guide chamber (11), and the cover (60) is covered on the first mounting seat (10).

4. The hinge according to claim 2, characterized in that The guide slots (22) on both sides of the guide slide seat (21) are connected transversely, the torsion spring (50) is a single torsion spring or a double torsion spring, and the push surface (23) is an inclined surface.

5. The hinge according to claim 1, wherein: Abutment convex portions (42) are provided on both sides of the hinged rotating arm (40), and the second torsion arm (52) is movably abutted against the abutment convex portions (42).

6. The hinge according to claim 5, characterized in that A first abutting surface (43) and a second abutting surface (44) that cooperate with the torsion arm are respectively provided on both sides of the abutting protrusion (42).

7. The hinge according to claim 1, wherein: The fixing seat (70) is provided with a mounting chamber (71) for mounting a first mounting seat (10), an eccentric bolt (12) is locked on the first mounting seat (10), and a strip-shaped adjustment hole (72) is provided on the fixing seat (70) to cooperate with the eccentric bolt (12), and the front end of the eccentric bolt (12) passes through the strip-shaped adjustment hole (72); The fixing seat (70) is provided with fixing screw holes (73) on both sides, and the first mounting seat (10) is provided with strip-shaped guide holes (13) that match the fixing screw holes (73) on both sides.

8. The hinge according to claim 7, wherein: The fixing seat (70) is provided with an axis hole (74), the rotating shaft passes through the axis hole (74) and is connected to the hinged rotating arm (40), and the hinged rotating arm (40) is hinged to the first mounting seat (10) through the rotating shaft.

9. The hinge according to claim 7, characterized in that The two side walls of the installation chamber (71) respectively cover the two sides of the first installation seat (10), and the two sides of the first installation seat (10) form a limit for the torsion spring (50).

10. The hinge according to claim 1, wherein: A slot (14) for accommodating a spring body of a torsion spring (50) is provided on the outer side of the first mounting seat (10), a through hole (15) is provided between the slot (14) and the guide chamber (11), and the first torsion arm (51) passes through the through hole (15) into the guide chamber (11).

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