Cup-shaped blind hinge

Abstract

The embodiment of the utility model provides a cup-shaped blind hinge. The cup-shaped blind hinge comprises a hinge arm, a connecting part, a hinge cup and a buffer device, the connecting part is hinged between the hinge arm and the hinge cup and comprises a first connecting part and a second connecting part; the hinge arm comprises a first mounting area, a second mounting area and a third mounting area which are sequentially connected, a first included angle is formed between the top inner wall of the first mounting area and the top inner wall of the second mounting area, a second included angle is formed between the top inner wall of the second mounting area and the top inner wall of the third mounting area, and both the first included angle and the second included angle are not 180 degrees; the buffer device is slidably located in the second installation area, and one end of the buffer device abuts against the inner wall of the top of the first installation area. A tail hook is arranged on the side edge of the tail end of the second connecting part and used for rotating around the shaft and abutting against the buffering device when the hinge is within the preset angle range, so that the buffering device is used for reducing the opening and closing speed of the hinge. According to the technical scheme, the hinge can be applied to a special corner cabinet body.

Description

Technical Field

[0001] The present application relates to the technical field of hinges, and in particular to a cup-shaped concealed hinge. Background Art

[0002] The cup-shaped concealed hinge is a hardware accessory specially used for modern furniture, designed to connect the cabinet door to the cabinet body. It not only ensures smooth opening and closing, but also can be cleverly hidden inside the cabinet door, thus maintaining the overall simple appearance of the furniture. Existing cup-shaped concealed hinges are usually designed for standard right-angle cabinets. However, in special corner cabinets, this type of hinge cannot provide the required opening and closing angle and stability. The shape of the hinge arm is also not suitable for these special angles, resulting in the inability to achieve smooth opening and closing or correct alignment, thus affecting the overall function and aesthetics of the cabinet.

[0003] It should be noted that the above content is not necessarily prior art, nor is it intended to limit the scope of patent protection of this application. Utility Model Content

[0004] The embodiments of the present application provide a cup-shaped concealed hinge to solve or alleviate one or more of the technical problems mentioned above.

[0005] As one aspect of an embodiment of the present application, an embodiment of the present application provides a cup-shaped concealed hinge, comprising: a hinge arm, a connecting portion, a hinge cup and a buffer device;

[0006] The connecting portion is hinged between the hinge arm and the hinge cup, and the connecting portion includes a first connecting member and a second connecting member;

[0007] The hinge arm comprises a first mounting area, a second mounting area and a third mounting area connected in sequence, the top inner wall of the first mounting area and the top inner wall of the second mounting area form a first angle, the top inner wall of the second mounting area and the top inner wall of the third mounting area form a second angle, and the first angle and the second angle are not 180°;

[0008] The buffer device is slidably located in the second installation area, and one end thereof abuts against the top inner wall of the first installation area;

[0009] A tail hook is provided on the side edge of the end of the second connecting member, and the tail hook is used to rotate around the axis and abut against the buffer device when the hinge is within a preset angle range, so that the buffer device is used to slow down the opening and closing speed of the hinge.

[0010] Optionally, the size of the second angle is determined according to different corner cabinets.

[0011] Optionally, the second angle is greater than 180° and less than 270°; or

[0012] The second angle is greater than 90° and less than 180°.

[0013] Optionally, the second angle is 220°; or

[0014] The second angle is 203°; or

[0015] The second angle is 158°.

[0016] Optionally, the first angle is 110°.

[0017] Optionally, one end of the first installation area close to the second installation area is recessed from outside to inside, and a bulge is formed on the top inner wall of the first installation area;

[0018] Wherein, the protrusion is used to interfere with the one end of the buffer device.

[0019] Optionally, the buffer device comprises a slide seat and a buffer, and the buffer comprises a damping cylinder and a damping rod with one end in the damping cylinder;

[0020] The damping cylinder is fixed on the slide seat, and the other end of the damping rod abuts against the top inner wall of the first installation area.

[0021] Optionally, a first protrusion is located on a side of the slide seat and is used to be hooked with the tail hook; and / or

[0022] The hinge arm is provided with a second protrusion, which is matched with the second protrusion and is used to limit the maximum stroke of the buffer device.

[0023] Optionally, the disassembly frame is fixed in the third installation area, and the disassembly frame is used to be detachably connected to the installation base.

[0024] The above technical solution adopted in the embodiment of the present application may have the following advantages:

[0025] Through the design of the first angle and the second angle, the hinge can be used in a corner cabinet with a special angle to adapt to the use of the cabinet door in certain irregular or narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0027] Figure 1 It is a schematic diagram of the structure of the cup-shaped concealed hinge provided in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of the cup-shaped concealed hinge provided by an embodiment of the present application.

[0029] Figure 3 It is a schematic exploded view of the cup-shaped concealed hinge provided by an embodiment of the present application.

[0030] Figure 4 It is a schematic view of the hinge arm structure provided by an embodiment of the present application.

[0031] Figure 5 It is a schematic view of the structure of the second connecting member provided by an embodiment of the present application.

[0032] Figure 6 It is a schematic exploded view of the buffer device provided by an embodiment of the present application.

[0033] Figure 7 It is a schematic view of the open state of the cup-shaped concealed hinge provided by an embodiment of the present application.

[0034] Figure 8 It is a schematic view of the closed state of the cup-shaped concealed hinge provided by an embodiment of the present application.

[0035] Figure 9 It is a schematic view of the application scenario of the cup-shaped concealed hinge provided by an embodiment of the present application.

[0036] Figure 10 It is a schematic view of the structure of the cup-shaped concealed hinge provided by another embodiment of the present application.

[0037] Figure 11 It is a schematic view of the structure of the cup-shaped concealed hinge provided by another embodiment of the present application.

[0038] Explanation of reference numerals:

[0039] 100, hinge arm; 110, first installation area; 120, second installation area; 130, third installation area; 140, protrusion; 150, blocking portion; 200, first connecting member; 210, torsion spring; 300, second connecting member; 310, tail hook; 400, hinge cup; 410, U-shaped pin; 500, buffer device; 510, sliding seat; 511, first convex block; 512, second convex block; 520, buffer; 521, damping cylinder; 522, damping rod; 600, disassembly rack. Detailed implementation manners

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0041] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present application are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0042] As Figures 1 to 11 shown, the cup-shaped concealed hinge may include: a hinge arm 100, a connecting portion, a hinge cup 400 and a buffer device 500. In some embodiments, a disassembly frame 800 may also be included.

[0043] The connecting portion is hinged between the hinge arm 100 and the hinge cup 400, and the connecting portion includes a first connecting portion and a second connecting portion. In some embodiments, the first connecting member 200 and the second connecting member 300 are jointly hinged to the hinge cup 400 through a U-shaped pin 410. The hinge cup 400 can be fixed to the door / frame by bolts or the like, and the hinge arm 600 can clamp and fix the base through the disassembly frame 800 fixed by embedding, and then be fixed to the frame / door through the base.

[0044] The hinge arm 100 includes a first mounting area 110, a second mounting area 120 and a third mounting area 130 connected in sequence. The inner wall of the top of the first mounting area 110 and the inner wall of the top of the second mounting area 120 form a first included angle, and the inner wall of the top of the second mounting area 120 and the inner wall of the top of the third mounting area 130 form a second included angle. Neither the first included angle nor the second included angle is 180°. The first mounting area 110 can accommodate a part of the torsion spring 210 and leave a part of the space for the opening and closing of the hinge. The second mounting area 120 can be used to accommodate the buffer device 500.

[0045] The buffer device 500 is slidably located in the second mounting area 120, and one end thereof abuts against the inner wall of the top of the first mounting area 110. The buffer device 500 is located in the second mounting area 120 to facilitate the buffer device 500 to generate a damping effect earlier. The function of the buffer device 500 is to effectively slow down the opening and closing speed of the cabinet door by slowly releasing the accumulated energy, provide a soft closing experience, and prevent the impact and noise caused by slamming the door.

[0046] A tail hook 310 is provided at the side of the end of the second connecting member 300. The tail hook 310 is used to rotate around the axis and contact the buffer device 500 when the hinge is within a preset angle range, so that the buffer device 500 is used to slow down the opening and closing speed of the hinge. The interaction between the tail hook 310 and the damping device 500 generates a moderate damping force, so that the hinge can be gradually decelerated when closing.

[0047] In this embodiment, through the design of the first angle and the second angle, the hinge can be used in a corner cabinet with a special angle to adapt to the use of the cabinet door in certain irregular or narrow spaces.

[0048] In an optional embodiment, the size of the second angle is determined according to different corner cabinets.

[0049] In this embodiment, in order to make the hinge match the angle and structure of a special cabinet, the angle of the second angle can be adjusted accordingly, and the hinge can be adapted to different opening and closing spaces by replacing the matching hinge arm 100 .

[0050] In an optional embodiment, optionally, the second angle is greater than 180° and less than 270°; or the second angle is greater than 90° and less than 180°. The second angle greater than 180° and less than 270° can adapt to cabinets with smaller opening and closing angles, such as compact corner cabinets or other application scenarios. When the second angle is greater than 90° and less than 180°, the hinge can provide a larger opening and closing range.

[0051] In an optional embodiment, the second angle is 220° (eg Figure 1 The hinge shown); or the second angle is 203° (such as Figure 10 The hinge shown); or the second angle is 158° (such as Figure 11 When the second angle is 220°, the hinge is applied to a corner cabinet with a rotation angle of 30°. When the second angle is 203°, the hinge is applied to a corner cabinet with a rotation angle of 45°. When the second angle is 158°, the hinge is applied to a corner cabinet with a rotation angle of 90°.

[0052] In this embodiment, the degree corresponding to the second angle can be determined according to the structural requirements of cabinets with different corners. In other words, the hinge can be adapted to the corresponding cabinet corner by adjusting and adapting the second angle, so that the cabinet door can be opened and closed smoothly.

[0053] In an optional embodiment, the first angle is 110°.

[0054] The first angle is 110° to facilitate the hinge arm 100 to be hinged to the first connecting member 200. According to specific requirements, the first angle can be set to other angles.

[0055] One end of the first installation area 110 close to the second installation area 120 is recessed from the outside to the inside, and a protrusion 140 is formed on the inner wall of the top of the first installation area 110. The protrusion 140 can also be provided on the first installation area 110 by means of bolts or buckles. Wherein, the protrusion 140 is used to abut against one end of the buffer device 500.

[0056] In this embodiment, the design of the protrusion 140 enables the buffer device 500 to have a definite positioning point. When one end of the buffer device 500 abuts against the protrusion 140, the position of the buffer device 500 can be made more stable, reducing misalignment caused by sliding or moving.

[0057] In an optional embodiment, the buffer device 500 includes a sliding seat 510 and a buffer 520. The buffer 520 includes a damping cylinder 521 and a damping rod 522 with one end inside the damping cylinder 521. An installation groove for placing the buffer 520 is provided at the bottom of the sliding seat 510. An opening is provided at one end of the installation groove close to the first installation area 110, and the other end of the damping rod 522 extends out from the opening.

[0058] The damping cylinder 521 is fixed on the sliding seat 510, and the other end of the damping rod 522 abuts against the inner wall of the top of the first installation area 110. The damping cylinder 521 is installed in the installation groove of the sliding seat 510 and fits tightly against the inner wall of the groove, so that it does not shift or loosen during operation. When the hinge is closed to a certain angle, the damping rod 521 is squeezed by the inner wall of the top of the first installation area 110 and the damping cylinder 522, causing the damping rod 521 to be pressed into the damping cylinder 521 to form a buffer.

[0059] In this embodiment, through the adaptation of the sliding seat 510 and the buffer 520, the buffer 520 can exert a buffering effect at an appropriate position. By directly abutting the other end of the damping rod 521 against the inner wall of the top of the first installation area 110, the structure is simplified and it is more conducive to the abutting of the damping rod 521.

[0060] In an optional embodiment, a first convex block 511 is located on the side of the sliding seat 510 and is used for hooking with the tail hook 310. The first convex portion 511 is used for hooking with the tail hook 310. When the hinge rotates to a specific angle, the tail hook 310 will hook the first protrusion 511, thereby driving the sliding seat 510 to squeeze the bottom of the damping cylinder 522, thus generating a damping force.

[0061] A second bump 512, and a blocking portion 150 is provided on the hinge arm 100 and is adapted to cooperate with the second bump 140 to limit the maximum stroke of the buffer device 500. The blocking portion 150 may be a rivet located inside the hinge arm 100, and may also provide support for the buffer device 500 within the hinge arm 100. When the buffer device 500 moves within the hinge arm 100, the second bump 530 contacts the blocking portion 120, thereby limiting the maximum stroke position of the damping device 500.

[0062] In this embodiment, the provision of the tail hook 310 and the first bump 511 enables the buffer device 500 to generate buffering at an appropriate time. The blocking portion 150 and the second protrusion 512 cooperate to limit the stroke of the buffer device 500 when it resets and retreats and enable it to operate within a preset range. At the same time, the blocking portion 150 functions as a support to prevent the buffer device 500 from falling off the hinge arm 100.

[0063] In an alternative embodiment, the disassembly frame 600 is fixed within the third installation area 130, and the disassembly frame 600 is adapted to be detachably connected to the mounting base. The disassembly frame 600 may be embedded within the third installation area 130 and fixed by fixing means such as bolts. The disassembly frame 600 may be connected to the mounting base by means of snap clamping.

[0064] In this embodiment, through the design of the disassembly frame 600, it is possible to more easily install or disassemble the mounting base.

[0065] The working principle and process of the cup-shaped concealed hinge of this embodiment are described below:

[0066] Closing process: As Figure 7 、 8 shown, when closing the door, the torsion of the torsion spring 210 drives the hinge cup 400 to rotate in the closing direction. The hinge cup 400 drives the first connecting member 200 and the second connecting member 300 to rotate. When the second connecting member 300 rotates in the closing direction with the hinge point between the hinge arm 100 and the second connecting member 300 as the axis, the tail hook 310 on the second connecting member 300 hooks the first bump 511 provided on the slide base 510 and drives the slide base 510 to move towards the inner wall top wall of the first installation area 110, so that the damping rod 522 and the damping cylinder 521 are mutually pressed to form a buffer, thereby slowing down the moving speed of the buffer device 500. At the same time, the moving speed slowed down by the buffer device 500 causes the rotational speed of the hinge cup 400 to slow down through the second connecting member 300, so that the door panel closes slowly and gently, eliminating the impact sound between the door panel and the door cabinet.

[0067] Opening process: When the hinge cup 400 rotates in the opening direction, the second connecting member 300 rotates in the opening direction with the hinge point between the hinge arm 100 and the second connecting member 300 as the axis. The tail hook 310 on the second connecting member 300 will leave the first convex block 511 of the sliding seat. At the same time, the elastic force of the buffer 520 causes the damping rod 522 to eject and drive the sliding seat 510 to move towards the top wall of the inner wall of the first installation area 110 away from it. When the hinge cup 400 is fully opened, the hinge returns to the state before the closing action.

[0068] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0069] For the sake of convenience of description, the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "on other devices or structures" will be positioned as "below other devices or structures" or "beneath other devices or structures" afterwards. Thus, the exemplary term "above..." can include both "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the relative spatial descriptions used herein are made.

[0070] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0071] Unless otherwise expressly stipulated or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0072] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0073] It should also be noted that the "one embodiment", "another embodiment", "embodiment" and the like mentioned in this specification refer to specific features, structures or characteristics described in connection with that embodiment being included in at least one embodiment generally described in the present application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of the present application.

[0074] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0075] It should also be noted that the above are only the preferred embodiments of the present application, and do not limit the scope of patent protection of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the scope of patent protection of the present application.

Claims

1. A cup-shaped concealed hinge, characterized in that: include: A hinge arm (100), a connecting portion, a hinge cup (400) and a buffer device (500); The connecting portion is hinged between the hinge arm (100) and the hinge cup (400), and the connecting portion comprises a first connecting member (200) and a second connecting member (300); The hinge arm (100) comprises a first installation area (110), a second installation area (120) and a third installation area (130) which are connected in sequence, the top inner wall of the first installation area (110) and the top inner wall of the second installation area (120) form a first angle, the top inner wall of the second installation area (120) and the top inner wall of the third installation area (130) form a second angle, and the first angle and the second angle are not 180°; The buffer device (500) is slidably located in the second installation area (120), and one end thereof abuts against the top inner wall of the first installation area (110); A tail hook (310) is provided on the side edge of the end of the second connecting member (300), and the tail hook (310) is used to rotate around an axis and to contact the buffer device (500) when the hinge is within a preset angle range, so that the buffer device (500) is used to slow down the opening and closing speed of the hinge.

2. The cup-shaped concealed hinge according to claim 1, characterized in that: The size of the second angle depends on different corner cabinets.

3. The cup-shaped concealed hinge according to claim 1, characterized in that: The second angle is greater than 180° and less than 270°; or The second angle is greater than 90° and less than 180°.

4. The cup-shaped concealed hinge according to claim 1, characterized in that: The second angle is 220°; or The second angle is 203°; or The second angle is 158°.

5. The cup-shaped concealed hinge according to claim 1, characterized in that: The first angle is 110°.

6. The cup-shaped concealed hinge according to claim 1, characterized in that: One end of the first installation area (110) close to the second installation area (120) is recessed from outside to inside, and a protrusion (140) is formed on the top inner wall of the first installation area (110); Wherein, the protrusion (140) is used to abut against the one end of the buffer device (500).

7. The cup-shaped concealed hinge according to any one of claims 1 to 6, characterized in that: The buffer device (500) comprises a sliding seat (510) and a buffer (520), and the buffer (520) comprises a damping cylinder (521) and a damping rod (522) one end of which is inside the damping cylinder (521); The damping cylinder (521) is fixed on the sliding seat (510), and the other end of the damping rod (522) abuts against the top inner wall of the first installation area (110).

8. The cup-shaped concealed hinge according to claim 7, characterized in that: The slide seat (510) is provided with: A first protrusion (511), located on a side of the slide seat (510), for hooking with the tail hook (310); and / or A second protrusion (512), the hinge arm (100) is provided with a blocking portion (150) that matches the second protrusion (512) and is used to limit the maximum stroke of the buffer device (500).

9. The cup-shaped concealed hinge according to claim 1, characterized in that: Also includes a disassembly frame (600), The disassembly frame (600) is fixed in the third installation area (130), and the disassembly frame (600) is used to be detachably connected to the installation base.

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