Damping hinge

Abstract

The present invention discloses a damping hinge, comprising a connecting assembly, a base body, a damping member, a torsion spring, a door fastener, a fixing base and a hinge arm; the connecting assembly comprises a second connecting member, a first connecting member, a third connecting member and a fourth connecting member; the base body is provided with a first U-shaped groove, the first U-shaped groove is used to accommodate a first axle pin fixing both sides of the fourth connecting member; the base body also has a cavity extending in a direction perpendicular to the first axle pin, the cavity is used to movably accommodate the damping member; an end of the damping member away from the door fastener abuts against the first axle pin; an end of the damping member close to the door fastener extends out of the fourth connecting member, which is used to abut against the door fastener when the riveting angle between the fourth connecting member and the door fastener is less than a preset angle to receive external extrusion; the damping hinge provided by the embodiment of the present invention has a damping member movably installed in the cavity on the base body, which is convenient for disassembly and assembly, and the damping force generated by the damping member when the door is closed slows down the speed of the door fastener.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of movable connecting parts, and in particular to a damping hinge. Background Art

[0002] The damping hinge is generally composed of a hinge cup, a connecting plate, a hinge arm, a base, a damping member, a fastening screw and an adjusting screw. As a commonly used furniture hardware, the damping hinge is installed between a light cabinet door and a door frame, so that the door can rotate relative to the door frame. The installation structure between the damping member and the hinge in the existing damping hinge is complicated. When the damping force of the damping member fails, it is not convenient to replace it, and the damping member is easy to get stuck when sliding, affecting the damping effect. Summary of the invention

[0003] In view of this, an object of an embodiment of the present invention is to provide a damping hinge, which solves the problem that the damping member in the damping hinge has a complex installation structure and is easily stuck when sliding.

[0004] A damping hinge comprises a connecting assembly, a seat body, a damping member, a torsion spring, a door fastener, a fixing seat and a hinge arm;

[0005] The connecting component is movably connected between the hinge arm and the door fastener; the connecting component includes a first connecting member, a second connecting member, a third connecting member and a fourth connecting member; one end of the connecting member is riveted to the hinge arm, and the other end is riveted to the second connecting member; the first connecting member has one end riveted to the hinge arm, and the other end is riveted to the second connecting member; the second connecting member is in a bent shape, one end of which is riveted to the first connecting member, and the other end is riveted to the door fastener; the third connecting member has one end riveted to the bending part in the middle of the second connecting member; the fourth connecting member has one end riveted to the third connecting member, and the other end is riveted to the door fastener.

[0006] Optionally, the fourth connecting member is also used to accommodate the seat body; the seat body is provided with a first U-shaped groove, and the first U-shaped groove is used to accommodate a first axle pin fixed on both sides of the fourth connecting member; the seat body also has a cavity extending in a direction perpendicular to the first axle pin, and the cavity is used to movably accommodate the damping member; the end of the damping member away from the door firmware abuts against the first axle pin.

[0007] Optionally, one end of the damping member close to the door fastener extends out of the fourth connecting member, and is used to abut against the door fastener when the riveting angle between the fourth connecting member and the door fastener is smaller than a preset angle, so as to receive external extrusion.

[0008] Optionally, a slope surface is provided on the door firmware, and the damping member is divided into a main body and a movable rod connected to the main body, the movable rod can be extended and retracted along the axial direction of the main body, and the end of the main body abuts against the slope surface in a swinging state, and the end of the movable rod abuts against the first axle pin.

[0009] Optionally, lugs are provided on both sides of the main body, and grooves are provided on both sides of the cavity, and the lugs are mounted on the grooves and can slide back and forth along the grooves.

[0010] Optionally, a second symmetrical circular hole is further formed on the fourth connecting member, a second U-shaped groove is formed on the second side of the seat body, and the second symmetrical circular hole and the second U-shaped groove are riveted together by a second axle pin.

[0011] Optionally, the second connecting member is riveted to the first connecting member via a third axle pin, and a fourth axle pin is also riveted to the first connecting member.

[0012] Optionally, the torsion spring includes a main body, a torsion input end, and a torsion output end; the torsion input end is overlapped on the fourth axle pin, and the torsion output end abuts against the end face of the second connecting member; the main body and the second connecting member are riveted together by a fifth axle pin.

[0013] Optionally, the hinge arm and the first connecting member are riveted together via a sixth axle pin, and the second connecting member and the third connecting member are riveted together via a seventh axle pin.

[0014] Optionally, the third connecting member and the fourth connecting member are riveted together via an eighth axis pin, the second connecting member and the door fixture are riveted together via a ninth axis pin, and the fourth connecting member and the door fixture are riveted together via a tenth axis pin.

[0015] Optionally, a tail buckle is protruding outward from one end of the hinge arm, and an adjusting screw is also protrudingly provided on the end surface of the hinge arm.

[0016] Optionally, the fixing seat is installed at one end of the hinge arm, and mounting holes are provided on both sides of the fixing seat.

[0017] The damping hinge provided by the embodiment of the present invention has a damping member that is buckled in the cavity of the seat body for easy disassembly and assembly. One end of the damping member abuts against the axle pin, and through the transmission of multiple sets of connecting parts, the door fastener is driven to rotate and swing, so that the other end of the damping member directly abuts against the door fastener when the door fastener rotates and swings. When the door is closed, the damping member expands and contracts in the cavity, and the damping force generated by the expansion and contraction of the damping member slows down the speed of the door fastener. The cavity of the seat body adopts a semi-closed structure, so that the damping member will not be stuck in the seat body when sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of the damping hinge of the present invention in the first state;

[0019] Figure 2 It is a structural schematic diagram of the damping hinge of the present invention in the second state;

[0020] Figure 3 is a three-dimensional diagram of the damping hinge of the present invention;

[0021] Figure 4 is a schematic structural diagram of a second connecting member of the present invention;

[0022] Figure 5 is a schematic structural diagram of a first connecting member of the present invention;

[0023] Figure 6 is a schematic structural diagram of a third connecting member of the present invention;

[0024] Figure 7 is a schematic structural diagram of a fourth connecting member of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the door fixing device of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of the hinge arm of the present invention;

[0027] Fig.10 is a schematic structural diagram of the damping member of the present invention;

[0028] Fig.11 It is a structural schematic diagram of the fixing seat of the present invention;

[0029] Fig.12 It is a schematic structural diagram of the seat body of the present invention in the first direction;

[0030] Fig.13 It is a schematic structural diagram of the seat body of the present invention in the second direction;

[0031] Fig.14 It is a structural schematic diagram of the seat body of the present invention in the third direction;

[0032] Fig.15 It is a schematic structural diagram of the seat body of the present invention in the fourth direction;

[0033] Fig.16 It is a schematic structural diagram of the torsion spring of the present invention.

[0034] The components list is as follows:

[0035] 1. A second connecting member;

[0036] 2. A first connecting member;

[0037] 3. The third connecting piece;

[0038] 4. Fourth connecting piece;

[0039] 5. Base body;

[0040] 6. Damping parts;

[0041] 7. Torsion spring;

[0042] 8. Door firmware;

[0043] 9. Articulated arm;

[0044] 10. Fixed seat;

[0045] 11. Second axle pin;

[0046] 12. First axle pin;

[0047] 13. Eighth axle pin;

[0048] 14. Tenth axle pin;

[0049] 15. Ninth axle pin;

[0050] 16. Seventh axle pin;

[0051] 17. Fifth axle pin;

[0052] 18. The third axle pin;

[0053] 19. Fourth axle pin;

[0054] 20. Eleventh axle pin;

[0055] 21. Sixth axle pin;

[0056] 101, third symmetrical circular hole;

[0057] 102, fourth symmetrical circular hole;

[0058] 103, fifth symmetrical circular hole;

[0059] 104, sixth symmetrical circular hole;

[0060] 201, seventh symmetrical circular hole;

[0061] 202, eighth symmetrical circular hole;

[0062] 203, ninth symmetrical circular hole;

[0063] 301, tenth symmetrical circular hole;

[0064] 302, eleventh symmetrical circular hole;

[0065] 303, twelfth symmetrical circular hole;

[0066] 401, thirteenth symmetrical circular hole;

[0067] 402, first symmetrical circular hole;

[0068] 403, second symmetrical circular hole;

[0069] 404, the fourteenth symmetrical circular hole;

[0070] 501, groove;

[0071] 502, cavity;

[0072] 503, first U-shaped groove;

[0073] 504, second U-shaped groove;

[0074] 601. Subject;

[0075] 602, lugs;

[0076] 603, movable rod;

[0077] 701. Ontology;

[0078] 702, torque output terminal;

[0079] 703, torque input terminal;

[0080] 801, slope surface;

[0081] 802, the fifteenth symmetrical circular hole;

[0082] 803, sixteenth symmetrical circular hole;

[0083] 901, seventeenth symmetrical circular hole;

[0084] 902, the eighteenth symmetrical circular hole;

[0085] 903, tail button;

[0086] 904, adjusting screw;

[0087] 1001. Mounting hole. DETAILED DESCRIPTION

[0088] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0089] Explanation of terms in this invention:

[0090] The damping hinge is generally composed of a hinge cup, a connecting plate, a hinge arm, a base, a damping element, a fastening screw and an adjusting screw. As a commonly used furniture hardware, it is installed between the cabinet door and the door frame of light furniture so that the door can rotate relative to the door frame. Its characteristic is that a certain buffering function is achieved through the damping element, which can minimize the impact noise between the cabinet door and the door frame when the cabinet door is closed. It should be noted that the damping hinge protected by the present invention can refer to the cup-shaped concealed hinge (Cuphinges) with a damper, which meets and exceeds the relevant definitions, requirements and inspection standards of the light industry industry standards of the People's Republic of China QB / T1242-1991 and QBT2189-2013, and at the same time, it meets and exceeds the relevant definitions, requirements and inspection standards in the EU standard 15570-2008.

[0091] Riveting: that is, rivet connection, is a method of connecting multiple parts by using axial force to thicken the nail rod in the rivet hole of the part and form a nail head; the riveting used in this embodiment is active riveting, that is, the combined parts can rotate relative to each other.

[0092] like Figure 1 to Figure 3 A damping hinge shown includes a connecting assembly, a seat body 5, a damping member 6, a torsion spring 7, a door fastener 8, a fixing seat 10 and a hinge arm 9;

[0093] As a preferred solution, the connection assembly includes a first connection member 2 , a second connection member 1 , a third connection member 3 and a fourth connection member 4 .

[0094] Specifically, Figure 4 The second connecting member 1 shown in the figure has four groups of symmetrical circular holes penetrating through the two sides of the second connecting member 1, and the four groups of symmetrical circular holes are divided into a third symmetrical circular hole 101, a fourth symmetrical circular hole 102, a fifth symmetrical circular hole 103, and a sixth symmetrical circular hole 104;

[0095] As a preferred solution, Figure 5 As shown in the first connecting member 2 , a seventh symmetrical circular hole 201 , an eighth symmetrical circular hole 202 , and a ninth symmetrical circular hole 203 are formed on two sides of the first connecting member 2 .

[0096] As a preferred solution, Figure 6 As shown in the third connecting member 3 , a tenth symmetrical circular hole 301 , an eleventh symmetrical circular hole 302 , and a twelfth symmetrical circular hole 303 are formed on two sides of the third connecting member 3 .

[0097] As a preferred solution, Figure 7 The fourth connecting member 4 shown in the figure is provided with a first symmetrical circular hole 402 , a second symmetrical circular hole 403 , a thirteenth symmetrical circular hole 401 and a fourteenth symmetrical circular hole 404 .

[0098] As a preferred solution, Figure 8The door fixture 8 shown has a fifteenth symmetrical circular hole 802 and a sixteenth symmetrical circular hole 803 disposed on both sides of the door fixture 8 .

[0099] As a preferred solution, Fig. 9 As shown in the hinge arm 9 , a seventeenth symmetrical circular hole 901 and an eighteenth symmetrical circular hole 902 are provided on both sides of the hinge arm 9 .

[0100] As a preferred embodiment, the ninth symmetrical circular hole 203 is riveted to the third symmetrical circular hole 101 through the third axis pin 18 to rivet the first connecting member 2 to the second connecting member 1; the fifth symmetrical circular hole 103 is riveted to the eleventh symmetrical circular hole 302 through the seventh axis pin 16 to rivet the second connecting member 1 to the third connecting member 3; the tenth symmetrical circular hole 301 is riveted to the second symmetrical circular hole 403 through the eighth axis pin 13 to rivet the third connecting member 3 is riveted to the fourth connecting member 4; the fourteenth symmetrical circular hole 404 and the fifteenth symmetrical circular hole 802 are riveted through the tenth axis pin 14 to rivet the fourth connecting member 4 to the door fixture 8, the sixth symmetrical circular hole 104 and the sixteenth symmetrical circular hole 803 are riveted through the ninth axis pin 15 to rivet the second connecting member 1 to the door fixture 8; the twelfth symmetrical circular hole 303 and the seventeenth symmetrical circular hole 901 are riveted through the eleventh axis pin 20 to rivet the third connecting member 3 to the hinge arm 9.

[0101] As a preferred solution, Figure 12 to Figure 15 The seat body shown in the figure has a first U-shaped groove 503 on the first side of the seat body 5; the first U-shaped groove 503 is used to accommodate the first axle pin 12 for fixing the two sides of the first symmetrical circular hole 402; the seat body 5 also has a cavity 502 extending in a direction perpendicular to the first axle pin 12, and the cavity 502 is used to movably accommodate the damping member 6; the end of the damping member 6 away from the door fastener 8 abuts against the first axle pin 12; the end of the damping member 6 close to the door fastener 8 extends out of the fourth connecting member 4, and is used to abut against the door fastener 8 when the riveting angle between the fourth connecting member 4 and the door fastener 8 is less than a preset angle to receive external extrusion.

[0102] As a preferred solution, the door fixture 8 is provided with a slope surface 801, such as Fig.10The damping member 6 shown is divided into a main body 601 and a movable rod 603 connected to the main body 601, the movable rod 603 can be extended and retracted along the axial direction of the main body 601, and the end of the main body 601 abuts against the slope surface 801 in the swinging state, and the end of the movable rod 603 abuts against the first axle pin 12; specifically, the door fastener 8 is driven to rotate by the second connecting member 1 to make the door fastener 8 swing clockwise until the end of the main body 601 touches the door fastener 8, and the swinging speed of the door fastener 8 can be slowed down by compressing the movable rod 603, wherein the movable rod 603 can preferably be a hydraulic rod.

[0103] As a preferred solution, lugs 602 are provided on both sides of the main body 601 , and grooves 501 are also provided on both sides of the cavity 502 . The lugs 602 are installed on the grooves 501 and can slide back and forth along the grooves 501 , so that the damping member 6 is movably installed on the grooves 501 .

[0104] As a preferred solution, a second U-shaped groove 504 is formed on the second side of the seat body 5 , and the second symmetrical circular hole 403 and the second U-shaped groove 504 are riveted together by a second axle pin 11 .

[0105] As a preferred solution, a fourth axle pin 19 is riveted onto the first connecting member 2 , and the fourth axle pin 19 is arranged in the second connecting member 1 .

[0106] As a preferred solution, Fig.16 As shown, the torsion spring 7 includes a body 701, a torsion input end 702, and a torsion output end 703; the torque force output by the torsion output end 703 drives the connecting component and further drives the door fastener 8 to rotate and swing.

[0107] The torque input end 702 is overlapped on the fourth shaft pin 19, and the torque output end 703 is abutted on the end surface of the second connecting member 1;

[0108] As a preferred solution, the circular hole of the main body 701 is riveted to the second connecting member 1 through a fifth axle pin 17 .

[0109] As a preferred solution, the hinge arm 9 and the first connecting member 2 are riveted together via a sixth axle pin 21 .

[0110] As a preferred solution, a tail buckle 903 is protruded outwardly from one end of the hinge arm 9 , and an adjusting screw 904 is also protrudedly provided on the end surface of the hinge arm 9 .

[0111] As a preferred solution, the fixing seat 10 is installed at one end of the hinge arm 9. Fig.11 As shown, mounting holes 1001 are provided on both sides of the fixing seat 10, and the mounting holes 1001 are used for mounting on the door frame by bolts.

[0112] As the working principle of this embodiment, when closing the door, the damping hinge of this embodiment is compressed, the damping hinge is folded, and the fourth axis pin 19 crimped by the torsion spring 7 drives the first connecting member 2 to rotate counterclockwise with the sixth axis pin 21 as the axis. At the same time, the rotational torque generated by the first connecting member 2 pulls the second connecting member 1 through the third axis pin 18, the second connecting member 1 drives the third connecting member 3 through the seventh axis pin 16, the third connecting member 3 drives the fourth connecting member 4 to swing through the eighth axis pin 13, and the fourth connecting member 4 drives the door fastener 8 to swing in the opposite direction through the tenth axis pin 14. During the reverse swinging of the door fastener 8, the end of the main body 601 of the damping member 6 will directly contact the slope surface 801 of the door fastener 8, and the damping force generated by the damping member 6 will slowly expand and contract on the main body 601 through the movable rod 603, thereby slowing down the reverse swinging speed of the door fastener 8, and the unique circular cavity design of the seat body 5 can effectively prevent the damping member 6 from being stuck in the seat body 5, so that the door fastener 8 can be closed slowly and softly.

[0113] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0114] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A damping hinge, characterized in that: It includes a connecting component, a seat body, a damping member, a door fastener and a hinge arm; The connecting assembly is movably connected between the hinge arm and the door fastener; The connecting assembly includes a first connecting member, a second connecting member, a third connecting member and a fourth connecting member; The first connecting member has one end riveted to the hinge arm and the other end riveted to the second connecting member; The second connecting member is in a bent shape, one end of which is riveted to the first connecting member, and the other end of which is riveted to the door fixing member; The third connecting member has one end riveted to the bent portion located in the middle of the second connecting member, and the other end riveted to the hinge arm; The fourth connecting member has one end riveted to the third connecting member and the other end riveted to the door fixing member; The fourth connecting member is also used to accommodate the seat body; The seat body is provided with a first U-shaped groove, and the first U-shaped groove is used to accommodate the first axle pins fixing the two sides of the fourth connecting member; The seat body also has a cavity extending in a direction perpendicular to the first shaft pin, and the cavity is used to movably accommodate the damping member; One end of the damping member away from the door fixture abuts against the first shaft pin; One end of the damping member close to the door member extends out of the fourth connecting member and is used to abut against the door member when the riveting angle between the fourth connecting member and the door member is smaller than a preset angle to receive external compression.

2. The damping hinge according to claim 1, characterized in that: The door fastener is provided with a slope surface, and the damping member is divided into a main body and a movable rod connected to the main body, the movable rod can be extended and retracted along the axial direction of the main body, and the end of the main body abuts against the slope surface in a swinging state, and the end of the movable rod abuts against the first shaft pin.

3. The damping hinge according to claim 2, characterized in that: Lugs are arranged on both sides of the main body, and grooves are also arranged on both sides of the cavity. The lugs are installed on the grooves and can slide back and forth along the grooves.

4. The damping hinge according to claim 1, characterized in that: The fourth connecting member is also provided with a second symmetrical circular hole, the second side of the seat body is provided with a second U-shaped groove, and the second symmetrical circular hole and the second U-shaped groove are riveted together by a second axle pin.

5. The damping hinge according to claim 4, characterized in that: The second connecting member is riveted to the first connecting member via a third axle pin, and a fourth axle pin is also riveted to the first connecting member.

6. The damping hinge according to claim 5, characterized in that: It also includes a torsion spring, which includes a main body, a torsion input end, and a torsion output end; the torsion input end is overlapped on the fourth shaft pin, and the torsion output end is abutted on the end face of the second connecting member; the main body and the second connecting member are riveted together by a fifth shaft pin.

7. The damping hinge according to claim 4, characterized in that: The hinge arm and the first connecting member are riveted together via a sixth axle pin, and the second connecting member and the third connecting member are riveted together via a seventh axle pin.

8. The damping hinge according to claim 4, characterized in that: The third connecting member and the fourth connecting member are riveted together via an eighth axis pin, the second connecting member and the door fixing member are riveted together via a ninth axis pin, and the fourth connecting member and the door fixing member are riveted together via a tenth axis pin.

9. The damping hinge according to claim 1, characterized in that: One end of the hinge arm is provided with a tail buckle protruding outwards, and the end surface of the hinge arm is also provided with an adjusting screw protrudingly.

10. The damping hinge according to claim 1, characterized in that: It also includes a fixing seat, which is installed at one end of the hinge arm, and mounting holes are opened on both sides of the fixing seat.

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