Buffer type cabinet door hinge

Abstract

The utility model relates to the technical field of hardware hinges, and particularly discloses a buffer type cabinet door hinge which comprises a hinge arm and a hinge cup hinged to the hinge arm, a connecting rod mechanism is arranged between the hinge arm and the hinge cup, and the connecting rod mechanism comprises a lamination set connected with the hinge arm, a brace set connected with the lamination set and a cover plate rotationally connected with the hinge cup. Connecting nails which are rotationally connected with each other are arranged between the lamination group and the hinge cup, each connecting nail is provided with a buffering positioning piece used for buffering and positioning the cabinet door, and the buffering positioning pieces are arranged on the connecting nails, so that when the cabinet door is slowly opened to the maximum extent, the buffering positioning pieces can be gradually extruded and abut against the connecting nails, and therefore the buffering effect on the cabinet door is achieved; and when the cabinet door is opened to the maximum extent, the buffering positioning piece can be in limiting abutting connection with the connecting nail, so that the cabinet door is prevented from shaking when being opened to the maximum extent, and the cabinet door can be conveniently installed at the initial time.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware hinge technical field, especially in one kind of buffer formula cabinet door hinge. BACKGROUND

[0002] At present, the buffer hinge used by the majority of cabinet bodies is two-section force damping hinge, wherein the damper and spring are adopted to cooperate to form a damping structure, so that the damping structure can play a buffering closing effect when the door body is closed, thereby realizing soft closing of the cabinet door to avoid damage of the door body, and the door panel can freely hover when the door panel is opened by more than 45 degrees.

[0003] Since the door panel is in a relatively powerless state after the hinge is opened by more than 45 degrees (also because of this reason the door panel can freely hover), when the opening force is slightly large, the door panel will impact the cabinet body with great force, thereby causing damage of the door panel, the cabinet door or the hinge, and when the door panel is initially installed, if the door panel shakes at this time, it is easy to cause installation deviation.

[0004] The technical problem to be solved by the present application is to design a buffer type cabinet door hinge which can buffer and position the door panel in the maximum opening state. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the utility model aims to provide a buffer type cabinet door hinge which can buffer and position the door panel in the maximum opening state.

[0006] The utility model adopts the technical scheme that a buffer type cabinet door hinge comprises a hinge arm and a hinge cup hinged with the hinge arm, a connecting rod mechanism is arranged between the hinge arm and the hinge cup, the connecting rod mechanism comprises a laminated group connected with the hinge arm, a stay group connected with the laminated group, and a cover plate rotationally connected between the hinge cup, a connecting pin rotationally connected between the laminated group and the hinge cup is arranged between the laminated group and the hinge cup, and the connecting pin is provided with a buffer positioning piece for buffering and positioning the cabinet door.

[0007] In some embodiments, the connecting pin is U-shaped, the connecting pin comprises a first connecting end and a second connecting end, the first connecting end is rotationally connected between the laminated group, the second connecting end is connected with one end of the hinge cup and the cover plate respectively, the buffer positioning piece is limitingly installed at the second connecting end, a clamping block is arranged on the buffer positioning piece, a clamping hole is arranged on the cover plate, the clamping block and the clamping hole are clamped and matched, the buffer positioning piece is provided with a positioning protruding part, and the positioning protruding part is limitingly abutted with the first connecting end of the connecting pin when the cabinet door is opened to the maximum limit.

[0008] In some embodiments, the buffer positioning piece is provided with a flange part, a buffer positioning surface is arranged on one side of the flange part, and the buffer positioning surface is limitingly abutted with one end of the laminated group when the cabinet door is opened to the maximum limit.

[0009] In some embodiments, the buffer positioning member is provided with a clamping groove, which is clamped between the first connecting end of the connecting nail and the first connecting end of the connecting nail when the cabinet door is maximally opened.

[0010] In some embodiments, the buffer positioning member is fixedly connected with the first connecting end of the connecting nail, and the buffer positioning member is fixedly installed between the hinge cup and the buffer positioning member. The cover plate abuts against the buffer positioning member when the cabinet door is maximally opened.

[0011] In some embodiments, the buffer positioning member is fixedly connected with the second connecting end of the connecting nail, and the two sides of the buffer positioning member are provided with limiting plates. The opposite surfaces of the two limiting plates are provided with limiting portions. The cover plate abuts against the limiting portions on the limiting plates when the cabinet door is maximally opened.

[0012] In some embodiments, the buffer positioning member is provided with two connecting plates, which are connected between the second connecting end of the connecting nail and the second connecting end of the connecting nail. The buffer positioning member is provided with an abutting portion, which abuts against the first connecting end of the connecting nail when the cabinet door is maximally opened.

[0013] In some embodiments, the buffer positioning member is fixedly installed between the clamping block and the cover plate. The buffer positioning member is provided with a clamping hole. The buffer positioning member is made of elastic medium. The inlet diameter of the clamping hole is smaller than the diameter of the first connecting end of the connecting nail. The clamping hole is clamped between the first connecting end of the connecting nail when the cabinet door is maximally opened.

[0014] In some embodiments, the buffer positioning member is installed between the hinge cup and the buffer positioning member. The buffer positioning member is provided with a U-shaped groove, which is limited and abuts against the lower end of the laminated core group when the cabinet door is maximally opened.

[0015] In some embodiments, the buffer positioning member is fixedly connected with the second connecting end of the connecting nail. The two sides of the buffer positioning member are provided with baffle plates. One end of the baffle plate is provided with a stop block. The cover plate abuts against the stop block when the cabinet door is maximally opened.

[0016] The utility model has the following technical effects: the buffer positioning member is arranged on the connecting nail. When the cabinet door is slowly opened to the maximum limit, the buffer positioning member can be gradually pressed and abutted between the connecting nail, thereby playing a buffering role on the cabinet door. When the cabinet door is opened to the maximum limit, the buffer positioning member can be limited and abutted between the connecting nail, thereby avoiding shaking of the cabinet door when the cabinet door is opened to the maximum limit, and facilitating installation of the cabinet door at the beginning. ACCURACY OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of embodiment 1 of the buffer type cabinet door hinge.

[0018] Figure 2 It is a structure schematic view of embodiment 1 of the buffer type cabinet door hinge.

[0019] Figure 3 It is the structure schematic view of embodiment 1 of the buffer type cabinet door hinge of the utility model;

[0020] Figure 4 It is the structure schematic view of embodiment 2 of the buffer type cabinet door hinge of the utility model;

[0021] Figure 5 It is the structure schematic view of embodiment 3 of the buffer type cabinet door hinge of the utility model;

[0022] Figure 6 It is the structure schematic view of embodiment 4 of the buffer type cabinet door hinge of the utility model;

[0023] Figure 7 It is the structure schematic view of embodiment 5 of the buffer type cabinet door hinge of the utility model;

[0024] Figure 8 It is the structure schematic view of embodiment 5 of the buffer type cabinet door hinge of the utility model;

[0025] Figure 9 It is the structure schematic view of embodiment 6 of the buffer type cabinet door hinge of the utility model;

[0026] Figure 10 It is the structure schematic view of embodiment 7 of the buffer type cabinet door hinge of the utility model;

[0027] Figure 11 It is the structure schematic view of embodiment 8 of the buffer type cabinet door hinge of the utility model;

[0028] Figure 12 It is the structure schematic view of embodiment 9 of the buffer type cabinet door hinge of the utility model.

[0029] Correspondence between the reference signs and names in the drawing is as follows: 1, hinge arm; 2, hinge cup; 3, connecting rod mechanism; 30, laminated group; 31, stay group; 32, cover plate; 4, connecting nail; 5, buffer positioning member; 40, first connecting end; 41, second connecting end; 50, clamping block; 320, clamping hole; 51, positioning convex part; 52, flange part; 53, buffer positioning surface; 54, clamping groove; 540, side plate; 55, limiting plate; 550, limiting part; 56, connecting plate; 560, abutting part; 57, clamping hole; 58, U-shaped groove; 59, baffle; 590, stop block; 310, first stay; 311, second stay; 6, mounting seat; 7, hydraulic oil cylinder. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] Example 1: Please refer to Figures 1-3The utility model provides a technical scheme: a buffer type cabinet door hinge, including hinged arm 1 and with hinged arm 1 hinged hinged cup 2, wherein hinged arm 1 and hinged cup 2 between being equipped with connecting rod mechanism 3, the lower end of hinged arm 1 is equipped with the mounting seat 6 connected with it, wherein connecting rod mechanism 3 includes the lamination group 30 connected with hinged arm 1, the bracing group 31 connected with lamination group 30 and the cover plate 32 rotatablely connected between hinged cup 2, lamination group 30 and hinged cup 2 between being equipped with the mutual rotation connecting nail 4, wherein lamination group 30 is by several laminations and is combined mutually, and the bracing group 31 includes first bracing 310 and second bracing 311, still be equipped with a hydraulic cylinder 7 in mounting seat 6, wherein first bracing 310 one end and second bracing 311 one end between each other hinged, the other end of first bracing 310 and lamination group 30 hinged, the other end of second bracing 311 and the drive end of hydraulic cylinder 7 hinged, be equipped with the buffer positioning piece 5 for the cabinet door buffer positioning on connecting nail 4, the connecting nail 4 is U-shaped, wherein connecting nail 4 includes first connecting end 40 and second connecting end 41, and first connecting end 40 is rotatably connected between lamination group 30, and second connecting end 41 is connected with hinged cup 2 and the one end of cover plate 32 respectively, wherein buffer positioning piece 5 is rotatably connected with second connecting end 41, and be equipped with the detent block 50 on buffer positioning piece 5, and be equipped with the clamping hole 320 of detent block 50 on cover plate 32, and the detent cooperation between clamping hole 320 and detent block 50 is used to install buffer positioning piece 5 on cover plate 32 in detent, to avoid buffer positioning piece 5 from second connecting end 41 fall off, be equipped with the positioning protruding portion 51 on buffer positioning piece 5, when cabinet door is opened slowly until to maximum limit, cover plate 32 will slowly drive buffer positioning piece 5 to rotate, until the positioning protruding portion 51 of buffer positioning piece 5 gradually contacts between first connecting end 40 of connecting nail 4 to generate buffer force, to play the buffer force when the door panel opening, and when the door panel opens to maximum limit, the positioning protruding portion 51 of buffer positioning piece 5 will form the spacing abutment between first connecting end 40 of connecting nail 4, to generate a resistance to avoid the door panel to shake when opening to maximum limit, so through the above in the second connecting end 41 of connecting nail 4 is equipped with buffer positioning piece 5, when the door panel opens to maximum limit, cover plate 32 can drive buffer positioning piece 5 to rotate, and the positioning protruding portion 51 of buffer positioning piece 5 can form the spacing abutment between first connecting end 40 of connecting nail 4, to avoid the door panel shake, also facilitate the installation of door panel initially.

[0032] Example 2: see Figure 4The utility model provides another technical scheme: a buffer type cabinet door hinge, also include hinge arm 1 and hinge cup 2 of hinge arm 1 hinged, wherein hinge arm 1 and hinge cup 2 are equipped with connecting rod mechanism 3 between, the lower end of hinge arm 1 is equipped with the mounting seat 6 connected with it, wherein connecting rod mechanism 3 includes the laminated group 30 of hinge arm 1 connection, the bracing group 31 of laminated group 30 connection and the cover plate 32 of hinge cup 2 between rotary connection, laminated group 30 and hinge cup 2 are equipped with the mutual rotation connecting nail 4 between, wherein laminated group 30 is combined by several laminated mutually, and the bracing group 31 includes first bracing 310 and second bracing 311, still be equipped with a hydraulic oil cylinder 7 in mounting seat 6, wherein the one end of first bracing 310 and the one end of second bracing 311 are mutually hinged, and the other end of first bracing 310 and laminated group 30 are hinged, and the other end of second bracing 311 and the drive end of hydraulic oil cylinder 7 are hinged, and be equipped with the buffer positioning piece 5 for the cabinet door buffer positioning on connecting nail 4, wherein the buffer positioning piece 5 is equipped with flange part 52, and the one side of flange part 52 is equipped with buffer positioning surface 53, when door plate is slowly opened, buffer positioning surface 53 will slowly with the one end of laminated group 30 slowly contact, thereby generates the buffer resistance of door plate, and when door plate is opened to the maximum limit, buffer positioning surface 53 and laminated group 30 form the limit abutment with the one end close to hinge cup 2 at this time, thereby generates the maximum resistance value to avoid door plate to sway, and then facilitate the installation of door plate initially.

[0033] Example 3: see Figure 5The utility model provides another technical scheme: a buffer type cabinet door hinge, also include hinge arm 1 and hinge cup 2 of hinge arm 1 hinged, wherein hinge arm 1 and hinge cup 2 are equipped with connecting rod mechanism 3, the lower end of hinge arm 1 is equipped with the mounting seat 6 connected with it, wherein connecting rod mechanism 3 includes the laminated group 30 of hinge arm 1 connection, the bracing group 31 of laminated group 30 connection and the cover plate 32 of hinge cup 2 between rotary connection, laminated group 30 and hinge cup 2 are equipped with the mutual rotation connecting nail 4, wherein laminated group 30 is by several laminated combinations each other, and bracing group 31 includes first bracing 310 and second bracing 311, still be equipped with a hydraulic oil cylinder 7 in mounting seat 6, wherein first bracing 310 one end and second bracing 311 one end between each other hinge, the other end of first bracing 310 and laminated group 30 hinge, the other end of second bracing 311 and the drive end of hydraulic oil cylinder 7 hinge, be equipped with the buffer positioning piece 5 for the cabinet door buffer positioning on connecting nail 4, the connecting nail 4 is U-shaped, wherein connecting nail 4 includes first connecting end 40 and second connecting end 41, and first connecting end 40 is rotatably connected between laminated group 30, and second connecting end 41 is connected with hinge cup 2 and the one end of cover plate 32 respectively, wherein buffer positioning piece 5 is limitedly installed on second connecting end 41, be equipped with the clamping block 50 on buffer positioning piece 5, cover plate 32 is equipped with the clamping hole 320 corresponding clamping block 50, by the clamping cooperation between clamping block 50 and clamping hole 320 to realize the clamping installation of buffer positioning piece 5 on cover plate 32, wherein the both sides of buffer positioning piece 5 are equipped with side plate 540, and the clamping groove 54 of two side plates 540 is all equipped with, when the door plate opens to the maximum limit, at this moment, two side plates 540 are all at the both sides of laminated group 30, and the clamping groove 54 of two side plates 540 is all with the first connecting end 40 of connecting nail 4 between each other clamping cooperation, equivalent to the mutual clamping resistance between buffer positioning piece 5 and first connecting end 40 at this moment, to avoid the door plate to shake when opening to the maximum limit, to also facilitate the installation of door plate at the beginning.

[0034] Example 4: see Figure 6The utility model provides another technical scheme: a buffer type cabinet door hinge, including hinge arm 1 and hinge cup 2 with hinge arm 1 articulates, hinge arm 1 with hinge cup 2 between being equipped with connecting rod mechanism 3, connecting rod mechanism 3 includes with hinge arm 1 connects the laminated group 30, with laminated group 30 connects the brace group 31 and with hinge cup 2 between rotation connection cover plate 32, laminated group 30 with hinge cup 2 between being equipped with the mutual rotation connection connecting nail 4, connecting nail 4 is equipped with for the buffer positioning of cabinet door buffer positioning piece 5, including first connecting end 40 and second connecting end 41, first connecting end 40 with laminated group 30 between rotation connection, second connecting end 41 respectively with hinge cup 2 and the one end of cover plate 32 are connected, wherein cover plate 32 with second connecting end 41 between is rotation connection, buffer positioning piece 5 fixed mounting is in connecting nail 4's first connecting end 40, and the bottom of buffer positioning piece 5 with hinge cup 2 between fixed mounting, when cabinet door panel is opened, the abutment between the both sides of cover plate 32 and buffer positioning piece 5 extrusion generates frictional force, and then generates the buffer resistance of panel, when cabinet door is opened to the maximum, the frictional resistance between the both sides of cover plate 32 and buffer positioning piece 5 reaches the maximum value at this time, so that the panel does not occur to shake, so as to facilitate the installation of panel initially.

[0035] Example 5: refer to Figures 7-8 The utility model provides another technical scheme: a buffer type cabinet door hinge, including hinge arm 1 and hinge cup 2 with hinge arm 1 articulates, hinge arm 1 with hinge cup 2 between being equipped with connecting rod mechanism 3, connecting rod mechanism 3 includes with hinge arm 1 connects the laminated group 30, with laminated group 30 connects the brace group 31 and with hinge cup 2 between rotation connection cover plate 32, laminated group 30 with hinge cup 2 between being equipped with the mutual rotation connection connecting nail 4, connecting nail 4 is equipped with for the buffer positioning of cabinet door buffer positioning piece 5, including first connecting end 40 and second connecting end 41, first connecting end 40 with laminated group 30 between rotation connection, second connecting end 41 respectively with hinge cup 2 and the one end of cover plate 32 are connected, wherein cover plate 32 with second connecting end 41 between is rotation connection, buffer positioning piece 5 fixed mounting is in connecting nail 4's second connecting end 41, and the bottom of buffer positioning piece 5 with hinge cup 2 between fixed mounting, buffer positioning piece 5's both sides are equipped with the limit board 55, the opposite surface of two limit boards 55 is equipped with the limit portion 550, when cabinet door is slowly opened, the extrusion between the opposite surface of two limit boards 55 and cover plate 32 at this time, frictional resistance to cabinet door is generated, thereby play the buffer effect to cabinet door, and when cabinet door opens to the maximum, the abutment between the both sides of cover plate 32 and the limit portion 550 on two limit boards 55 at this time, thereby form the maximum resistance, enter the panel when opening the maximum limit does not shake, facilitate the installation initially.

[0036] Example 6: refer to Figure 9The utility model provides another technical scheme: a buffer type cabinet door hinge, including hinged arm 1 and with hinged arm 1 hinged hinged cup 2, be equipped with connecting rod mechanism 3 between hinged arm 1 and hinged cup 2, and connecting rod mechanism 3 includes with the lamination group 30 of hinged arm 1 connection, with the lamination group 30 connection of batten group 31 and with the rotary connection of hinged cup 2 between cover plate 32, be equipped with the connecting nail 4 of mutual rotation connection between the lamination group 30 and hinged cup 2, and the connecting nail 4 is equipped with the buffer positioning piece 5 for the buffer positioning of cabinet door, and the connecting nail 4 is U-shaped, and the connecting nail 4 includes first connecting end 40 and second connecting end 41, and first connecting end 40 is rotatably connected between with the lamination group 30, and second connecting end 41 is connected with hinged cup 2 and the one end of cover plate 32 respectively, and the buffer positioning piece 5 is equipped with two connecting plates 56, and two connecting plates 56 are all rotatably connected between with second connecting end 41, and the buffer positioning piece 5 is equipped with the clamping block 50, and cover plate 32 is equipped with the clamping hole 320, and the clamping block 50 and the clamping hole 320 are clamped and located cooperation to make the fixed installation between the buffer positioning piece 5 and cover plate 32, and cover plate 32 is rotatably connected between with second connecting end 41, and cover plate 32 rotates when driving the synchronous rotation of buffer positioning piece 5, be equipped with the abutment portion 560 on the buffer positioning piece 5, when cabinet door is opened to the maximum limit slowly, at this time, cover plate 32 drives the rotation of buffer positioning piece 5 until the abutment portion 560 and the first connecting end 40 of connecting nail 4 abut, to avoid cabinet door to be easy to sway when opening to the maximum limit.

[0037] Example 7: see Figure 10The utility model provides another technical scheme: a buffer type cabinet door hinge, including hinged arm 1 and with hinged arm 1 hinged hinged cup 2, hinged arm 1 with hinged cup 2 between being equipped with connecting rod mechanism 3, connecting rod mechanism 3 includes with hinged arm 1 connection lamination group 30, with lamination group 30 connection bracing group 31 and with hinged cup 2 between rotary connection cover plate 32, lamination group 30 with hinged cup 2 between being equipped with the mutual rotary connection connecting nail 4, connecting nail 4 is equipped with for the buffer positioning of cabinet door buffer positioning piece 5, connecting nail 4 is U shape, connecting nail 4 includes first connecting end 40 and second connecting end 41, first connecting end 40 with lamination group 30 between rotary connection, second connecting end 41 respectively with hinged cup 2 and the one end of cover plate 32 connection, buffer positioning piece 5 is equipped with detent block 50, cover plate 32 is equipped with card hole 320, and detent block 50 and card hole 320 between detent cooperation to make buffer positioning piece 5 with cover plate 32 between fixed installation, cover plate 32 with second connecting end 41 between rotary connection, cover plate 32 rotates when driving buffer positioning piece 5 synchronous rotation, and buffer positioning piece 5 both sides are equipped with detent hole 57, wherein buffer positioning piece 5 is made of elastic medium, and the entry diameter of detent hole 57 is less than the diameter of first connecting end 40 of connecting nail 4, so when cabinet door is slowly opened, cover plate 32 can drive buffer positioning piece 5 to rotate, until the detent hole 57 on buffer positioning piece 5 slowly with first connecting end 40 between detent, when detent hole 57 and the first connecting end 40 of connecting nail 4 gradually detent, will produce frictional resistance to cabinet door, and when cabinet door is opened to maximum limit, at this time equivalent to the first connecting end 40 of connecting nail 4 is completely inserted into detent hole 57, to equivalent limit the rotation of door panel at this time, to avoid the swing of door panel when opening maximum limit, to facilitate the installation of door panel initially.

[0038] Example 8: see Figure 11The utility model provides another technical scheme: a buffer type cabinet door hinge, also include hinge arm 1 and hinge cup 2 of hinge arm 1 articulation, wherein hinge arm 1 and hinge cup 2 between being equipped with connecting rod mechanism 3, the lower end of hinge arm 1 is equipped with the mounting seat 6 connected with it, wherein connecting rod mechanism 3 includes the laminated group 30 of hinge arm 1 connection, the bracing group 31 of laminated group 30 connection and the rotating connection of cover plate 32 between hinge cup 2, laminated group 30 and hinge cup 2 between being equipped with the mutual rotation of connecting nail 4, connecting nail 4 is U-shaped, cover plate 32 still rotates the other end of connecting nail 4 and connects, wherein laminated group 30 is combined by several laminated each other, and bracing group 31 includes first bracing 310 and second bracing 311, still be equipped with a hydraulic oil cylinder 7 in mounting seat 6, wherein the one end of first bracing 310 and the one end of second bracing 311 between each other articulation, the other end of first bracing 310 and laminated group 30 articulate, the other end of second bracing 311 and the drive end of hydraulic oil cylinder 7 articulate, be equipped with with fixed installation buffer positioning part 5 on hinge cup 2, wherein buffer positioning part 5 is equipped with U-shaped groove 58, this U-shaped groove 58 just correspond to the lower end of laminated group 30, when cabinet door opens, the lower end of laminated group 30 is extruded between U-shaped groove 58 and buffer positioning part 5 to generate friction force, and then generate the buffer resistance of door panel, when door panel opens to maximum, the lower end of laminated group 30 and U-shaped groove 58 form limit abutment between, thereby equivalent to form the maximum buffer resistance of door panel, to avoid the door panel to produce swing when opening to maximum.

[0039] Example 9: see Figure 12The utility model provides another technical scheme: a buffer formula cabinet door hinge, including hinged arm 1 and with hinged arm 1 hinged hinged cup 2, hinged arm 1 with hinged cup 2 between being equipped with connecting rod mechanism 3, and connecting rod mechanism 3 includes with hinged arm 1 connection lamination group 30, with lamination group 30 connection stay group 31 and with hinged cup 2 between rotation connection cover plate 32, and lamination group 30 with hinged cup 2 between being equipped with the mutual rotation connection connecting nail 4, and connecting nail 4 is equipped for the buffer positioning piece 5 for cabinet door buffer positioning, and connecting nail 4 is U shape, and connecting nail 4 includes first connecting end 40 and second connecting end 41, and first connecting end 40 with lamination group 30 between rotation connection, and second connecting end 41 respectively with hinged cup 2 and cover plate 32 one end connection, and cover plate 32 with connecting nail 4 second connecting end 41 between rotation connection, and buffer positioning piece 5 with connecting nail 4 second connecting end 41 between fixed connection, and buffer positioning piece 5 lower end with hinged cup 2 between fixed mounting, and be equipped with baffle 59 in the both sides of buffer positioning piece 5, and every baffle 59 one end still be equipped with stopper 590, when cabinet door is opened, and the both sides of cover plate 32 can generate extrusion friction between the both sides baffle 59 of buffer positioning piece 5, to generate frictional resistance, and then play the buffer resistance of cabinet door, when cabinet door is opened to maximum, and the both sides of cover plate 32 and stopper 590 between abut, to avoid the door plate when opening to maximum can sway, and then facilitate the installation of door plate initially.

[0040] The utility model discloses a working principle: be equipped with buffer positioning piece 5 on connecting nail 4, when cabinet door is opened to maximum slowly, and buffer positioning piece 5 can gradually extrude and abut between connecting nail 4, to play the effect of cabinet door buffer, and when cabinet door is opened to maximum, and buffer positioning piece 5 can form spacing abutment between connecting nail 4, to avoid cabinet door when opening maximum to cause sway, and then also facilitate the installation of cabinet door initially.

[0041] Finally, it should be noted that the above only for the preferred examples of the utility model, and not for limiting the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part technical features. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A buffer-type cabinet door hinge, comprising a hinge arm and a hinge cup hinged to the hinge arm, characterized in that, A linkage mechanism is provided between the hinge arm and the hinge cup. The linkage mechanism includes a stacked plate group connected to the hinge arm, a pull bar group connected to the stacked plate group, and a cover plate rotatably connected to the hinge cup. A connecting pin is provided between the stacked plate group and the hinge cup for mutual rotatable connection. The connecting pin is provided with a buffer positioning element for buffer positioning of the cabinet door.

2. The buffer-type cabinet door hinge according to claim 1, characterized in that, The connecting pin is U-shaped and includes a first connecting end and a second connecting end. The first connecting end is rotatably connected to the stacked plate assembly, and the second connecting end is connected to one end of the hinge cup and the cover plate, respectively. The buffer positioning component is limited and installed on the second connecting end. The buffer positioning component is provided with a locking block, and the cover plate is provided with a locking hole. The locking block and the locking hole are engaged. The buffer positioning component is provided with a positioning protrusion, which abuts against the first connecting end of the connecting pin when the cabinet door is opened to the maximum extent.

3. The buffer-type cabinet door hinge according to claim 1, characterized in that, The buffer positioning component has a flange portion, and a buffer positioning surface is provided on one side of the flange portion. The buffer positioning surface is in limiting contact with one end of the stacked plate assembly when the cabinet door is opened to the maximum extent.

4. The buffer-type cabinet door hinge according to claim 2, characterized in that, The buffer positioning component is provided with a slot, which engages with the first connecting end of the connecting nail when the cabinet door is opened to the maximum extent.

5. The buffer-type cabinet door hinge according to claim 2, characterized in that, The buffer positioning component is fixedly connected to the first connecting end of the connecting nail, the buffer positioning component is fixedly installed between the buffer positioning component and the hinge cup, and the cover plate abuts against the buffer positioning component when the cabinet door is opened to the maximum extent.

6. The buffer-type cabinet door hinge according to claim 2, characterized in that, The buffer positioning component is fixedly connected to the second connecting end of the connecting nail. The buffer positioning component is provided with limiting plates on both sides, and the opposing surfaces of the two limiting plates are provided with limiting parts. When the cabinet door is opened to the maximum extent, the cover plate abuts against the limiting parts on the limiting plates.

7. The buffer-type cabinet door hinge according to claim 2, characterized in that, The buffer positioning component has two connecting plates, which are connected to the second connecting end of the connecting nail. The buffer positioning component has an abutting part, which abuts against the first connecting end of the connecting nail when the cabinet door is opened to the maximum extent.

8. The buffer-type cabinet door hinge according to claim 2, characterized in that, The buffer positioning component is fixedly installed between the locking block and the cover plate. The buffer positioning component is provided with a locking hole. The buffer positioning component is made of an elastic medium. The inlet diameter of the locking hole is smaller than the diameter of the first connecting end of the connecting nail. The locking hole engages with the first connecting end of the connecting nail when the cabinet door is opened to the maximum extent.

9. The buffer-type cabinet door hinge according to claim 1, characterized in that, The buffer positioning component is installed between the buffer positioning component and the hinge cup. The buffer positioning component is provided with a U-shaped groove. When the cabinet door is opened to the maximum extent, the U-shaped groove is limited and abuts against the lower end of the stacked plate assembly.

10. The buffer-type cabinet door hinge according to claim 2, characterized in that, The buffer positioning component is fixedly connected to the second connecting end of the connecting nail. The buffer positioning component has baffles on both sides and a stop block at one end of the baffle. The cover plate abuts against the stop block when the cabinet door is opened to the maximum extent.

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