Cabinet door hinge with adjustable buffering stroke function

Abstract

A cabinet door hinge with a buffering stroke adjusting function comprises a hinge cup and a hinge base, the hinge base is hinged to the hinge cup through a hinge arm, the hinge arm rotates around a hinge point of the hinge arm and the hinge cup to achieve opening and closing of the hinge, the hinge cup is provided with an inwards-concave containing area, a buffer is installed in the containing area, and the buffer is connected with the hinge base through a connecting rod. The surface of the containing area is covered with a cup cover, the bottom of the cup cover extends downwards to form a buckle base, a damping rod of the buffer is provided with a clamping groove, and the clamping groove is clamped in the buckle base and connected with the buckle base to limit the position of the damping rod. According to the cabinet door hinge disclosed by the utility model, the stroke adjuster is introduced into the hinge structure, so that the working stroke of the buffer can be flexibly adjusted. A user can realize different buffering effects through simple adjustment according to different use requirements and scenes. By means of the design, the adaptability of the hinge is remarkably improved, and the hinge can meet the wide application requirements of light cabinet doors to heavy cabinet doors.

Description

Technical Field

[0001] The utility model relates to a hardware accessory, in particular to a cabinet door hinge with a buffer stroke adjustable function. Background Art

[0002] Cabinet door hinges, as crucial components in furniture, home appliances, and other equipment, primarily ensure smooth opening and closing of cabinet doors. They also provide a cushioning effect during closing, preventing damage or noise from excessive force or improper operation. Traditional cabinet door hinges typically utilize a simple articulated structure. While this structure allows for basic opening and closing functions, it has limitations in terms of cushioning and travel adjustment.

[0003] Common buffer hinges on the market generally include a hinge cup, a hinge base, a hinge arm, and a buffer. By introducing a buffer into the hinge structure, a certain damping effect can be generated on the hinge arm when the cabinet door is closed, thereby achieving a buffering effect. However, these existing hinges generally have the following disadvantages:

[0004] 1. Existing soft-close hinges typically design the damping force of the buffer to a fixed value, making it difficult to adjust to different usage scenarios and requirements. This design fails to provide optimal damping for varying door sizes, weights, or opening and closing frequencies. For example, on lighter doors, the damping force of the buffer may be too strong, resulting in an awkward opening and closing; on heavier doors, the damping force may be insufficient, failing to effectively prevent the impact of closing.

[0005] 2. Traditional buffer hinges mostly provide only a simple buffering function, without the ability to adjust the buffer stroke to suit user needs. During use, users may need to adjust the buffer stroke based on the specific size of the cabinet door and usage habits to achieve the optimal buffering effect. However, existing buffer hinges often lack this travel adjustment function, which limits the user experience and makes it impossible to meet personalized usage needs. Therefore, further improvements are necessary. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a cabinet door hinge with a simple structure, easy to use, and capable of flexibly adjusting the buffer stroke according to user needs and having an adjustable buffer stroke function.

[0007] The purpose of the utility model is achieved in the following manner: a cabinet door hinge with an adjustable buffer stroke, comprising a hinge cup and a hinge seat, wherein the hinge seat is hinged to the hinge cup via a hinge arm, and the hinge arm rotates around the hinge point with the hinge cup to realize the opening and closing of the hinge, the hinge cup is provided with a concave accommodating area, a buffer is installed in the accommodating area, the surface of the accommodating area is covered with a cup cover, a buckle seat is extended downward from the bottom of the cup cover, a damping rod of the buffer is provided with a clamping groove, the clamping groove is clamped in the buckle seat and connected thereto, thereby limiting the position of the damping rod;

[0008] The surface of the oil cylinder of the buffer is provided with an extrusion seat, which extends into the movable path of the hinge arm. When the hinge is closed, the extrusion seat contacts the hinge arm, generating a damping effect on the hinge arm when closing.

[0009] The bottom of the cup cover is also provided with a spring slider, in which a return spring is installed, and the return spring pushes the spring slider to always move in the direction of hinge opening;

[0010] The side wall of the extrusion seat is provided with a blocking block extending in the direction of the spring slider, and the side wall of the spring slider is provided with an air-avoiding groove. The blocking block passes through the air-avoiding groove and contacts the reset spring to generate power to push the buffer to reset;

[0011] The cup cover is also provided with a stroke regulator, which interacts with the spring slider to limit the position of the spring slider to change the buffer stroke of the buffer.

[0012] Furthermore: the stroke adjuster includes an adjustment plate, and a hinge hole and a limit hole arranged on the cup cover. A hinge shaft is provided at the bottom of the adjustment plate and is swing-hinged and installed in the hinge hole. A limit shaft is provided at the bottom of the adjustment plate and is swing-hinged and installed in the limit hole. Correspondingly, a positioning groove is provided on the spring slider, and the limit shaft limits the movement stroke of the spring slider by selectively docking or separating the positioning groove.

[0013] Furthermore: the upper surface of the cup cover is concave downwardly to provide a mounting groove, the hinge hole and the limiting hole are provided in the mounting groove and pass through the bottom of the mounting groove.

[0014] Furthermore: the middle of the hinge shaft is hollowed out to provide a deformation groove, and the cylindrical surface of the hinge shaft is provided with a radially protruding anti-falling block, which abuts against the bottom of the cup cover to prevent the hinge shaft from falling out.

[0015] Furthermore: the limiting hole is fan-shaped, a raised anti-slip boss is provided in the limiting hole, and the limiting shaft is selectively snapped on one side of the anti-slip boss.

[0016] Furthermore: an upwardly protruding shift block is provided on the top of the adjustment plate, and the shift block protrudes from the surface of the cup cover.

[0017] Furthermore: a guide groove is provided on the back of the cup cover, and correspondingly, a guide rail is provided on the top of the spring slider, and the guide rail is slidably installed in the guide groove.

[0018] The beneficial effects of the utility model are: 1. Simple structure, low production cost and improved market competitiveness.

[0019] 2. The cabinet door hinge of this utility model incorporates a travel adjuster within the hinge structure, enabling flexible adjustment of the buffer's operating stroke. Users can achieve varying buffering effects based on different usage needs and scenarios through simple adjustments. This design significantly enhances the hinge's adaptability, enabling it to meet a wide range of application requirements, from light to heavy-duty cabinet doors.

[0020] 3. The buffer in this utility model is designed to be embedded within the recessed area of the hinge cup and protected by a cup cover, preventing the buffer from wear and failure due to external environmental influences during long-term use. Furthermore, by coordinating with the return spring and stroke adjuster, this utility model ensures the stability and durability of the buffer during long-term use, extending the product's service life.

[0021] 4. The damping rod of the buffer is fixed in the buckle seat at the bottom of the cup cover, and the fixing function can be achieved by utilizing the material of the cup cover. Therefore, there is no need to set corresponding components in the hinge cup to fix it, which is conducive to simplifying the structure and reducing the number of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the hinge in the open state of the present invention.

[0023] Figure 2 This is a schematic diagram of the hinge closed state in the present invention.

[0024] Figure 3 This is a structural exploded view of the utility model.

[0025] Figure 4 This is a schematic diagram of the structure of the utility model after the hinge cup is hidden.

[0026] Figure 5 For this utility model Figure 4 A magnified view of the structure of part A.

[0027] Figure 6 This is a schematic diagram of the structure after the limiting shaft and the positioning groove are separated in the utility model.

[0028] Figure 7 This is a schematic diagram of the structure after the limiting shaft and the positioning groove are docked and snapped together in the utility model.

[0029] Figure 8This is an exploded view of the extrusion seat and buffer structure in the utility model.

[0030] Figure 9 、 10 This is a schematic diagram of the spring slider structure in the utility model. DETAILED DESCRIPTION

[0031] The present invention is further described below in detail with reference to the accompanying drawings. A cabinet door hinge with an adjustable buffer stroke comprises a hinge cup 1 and a hinge seat 2. The hinge seat 2 is hingedly connected to the hinge cup 1 via a hinge arm 3. The hinge arm 3 rotates around the hinge point with the hinge cup 1 to achieve the opening and closing of the hinge. The hinge cup 1 is provided with a concave accommodating area 11. A buffer 4 is mounted within the accommodating area 11. The surface of the accommodating area 11 is covered with a cup cover 5. A buckle seat 51 extends downward from the bottom of the cup cover 5. A damping rod 41 of the buffer 4 is provided with a slot 42. The slot 42 is locked in the buckle seat 51 and connected thereto, limiting the position of the damping rod 41.

[0032] The cylinder surface of the buffer 4 is provided with an extrusion seat 6, which extends into the movable path of the hinge arm 3. When the hinge is closed, the extrusion seat 6 contacts the hinge arm 3, generating a damping effect on the hinge arm 3 when closing.

[0033] The bottom of the cup cover 5 is also provided with a spring slider 7, in which a return spring 8 is installed. The return spring 8 pushes the spring slider 7 to always move in the direction of hinge opening.

[0034] The side wall of the extrusion seat 6 extends toward the spring slider 7 with a blocking block 61, and the side wall of the spring slider 7 is provided with an air-avoiding groove 71. The blocking block 61 passes through the air-avoiding groove 71 and contacts the return spring 8, generating a force to push the buffer 4 to return to its original position.

[0035] The cup cover 5 is also provided with a stroke adjuster, which interacts with the spring slider 7 to limit the position of the spring slider 7 to change the buffering stroke of the buffer 4.

[0036] In one embodiment, the stroke adjuster includes an adjusting plate 9, and a hinge hole 52 and a limit hole 53 provided on the cup cover 5. A hinge shaft 91 is provided at the bottom of the adjusting plate 9 and is swingably hingedly installed in the hinge hole 52. A limit shaft 92 is provided at the bottom of the adjusting plate 9 and is swingably installed in the limit hole 53. Correspondingly, a positioning groove 72 is provided on the spring slider 7, and the limit shaft 92 limits the movement stroke of the spring slider 7 by selectively docking or separating the positioning groove 72.

[0037] In one embodiment, the upper surface of the cup cover 5 is concave downward to form a mounting groove 54 , and the hinge hole 52 and the limiting hole 53 are arranged in the mounting groove 54 and pass through the bottom of the mounting groove 54 .

[0038] In one embodiment, the middle of the hinge shaft 91 is hollowed out to provide a deformation groove 93, and a radially protruding anti-slip block 94 is provided on the cylindrical surface of the hinge shaft 91. The anti-slip block 94 abuts against the bottom of the cup cover 5 to prevent the hinge shaft 91 from slipping out.

[0039] In one embodiment, the limiting hole 53 is fan-shaped, and a raised anti-slip boss 57 is provided in the limiting hole 53 . The limiting shaft 92 is selectively snapped onto one side of the anti-slip boss 57 .

[0040] In one embodiment, an upwardly protruding shift block 95 is provided on the top of the adjustment plate 9 , and the shift block 95 protrudes from the surface of the cup cover 5 .

[0041] In one embodiment, a guide groove 56 is provided on the back of the cup cover 5 , and correspondingly, a guide rail 73 is provided on the top of the spring slider 7 , and the guide rail 73 is slidably installed in the guide groove 56 .

[0042] Working Principle: The hinge cup in this utility model is hingedly connected to the hinge base via a hinge arm. The hinge arm can rotate around the hinge point to open and close the cabinet door. When the user applies force to open or close the cabinet door, the hinge arm rotates at the hinge point, driving the cabinet door to move.

[0043] As the door nears its closed position, the hinge arm gradually contacts the squeeze seat within the hinge cup's accommodating area. The squeeze seat, acting upon the hinge arm, transmits this pressure to the buffer's cylinder, creating a damping effect. The buffer slows the door's closing speed, preventing the impact and noise caused by excessive force. This process effectively extends the door's lifespan and enhances the user experience.

[0044] It should be noted that the stroke adjuster cooperates with the hinge hole and the limit hole on the cup cover through the adjustment plate, allowing the user to adjust the working stroke of the buffer. The adjustment plate is connected to the hinge hole through a hinge shaft, and the limit shaft selectively docks or separates with the positioning groove on the spring slider through swinging, thereby limiting or extending the movement stroke of the spring slider. By adjusting the position of the limit shaft, the user can change the starting working position of the buffer, thereby adjusting the buffer stroke when the cabinet door is closed to meet the needs of cabinet doors of different sizes and weights. This function enables the utility model to provide flexible buffer adjustment, improving the applicability of the hinge and user convenience.

[0045] When the door opens, the damping rod inside the buffer returns to its initial position under the action of a return spring. This return spring, installed within the spring slider, pushes the slider toward the hinge opening direction, ensuring that after each door opening and closing, the buffer quickly returns to its initial position, ready for the next buffering operation. This design improves the buffer's efficiency and durability.

[0046] Furthermore, the cup cover design further enhances the stability of the overall structure. Not only does it cover the housing, protecting the buffer from environmental influences, but its bottom guide groove also mates with the spring slider's guide rail, ensuring stable movement. This design not only increases the buffer's reliability but also reduces wear caused by external forces or prolonged use.

[0047] Compared with traditional technology, the stroke adjuster design in this case allows users to flexibly adjust the buffer stroke according to actual needs, ensuring that cabinet doors of different weights and sizes can achieve the best buffering effect.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A cabinet door hinge with an adjustable buffer stroke, comprising a hinge cup (1) and a hinge seat (2), wherein the hinge seat (2) is hinged to the hinge cup (1) via a hinge arm (3), and the hinge arm (3) rotates around the hinge point with the hinge cup (1) to realize the opening and closing of the hinge, characterized in that: The hinge cup (1) is provided with a concave accommodating area (11), a buffer (4) is installed in the accommodating area (11), the surface of the accommodating area (11) is covered with a cup cover (5), a buckle seat (51) is extended downward from the bottom of the cup cover (5), and a clamping groove (42) is provided on the damping rod (41) of the buffer (4), and the clamping groove (42) is clamped in the buckle seat (51) and connected thereto, thereby limiting the position of the damping rod (41); The surface of the oil cylinder of the buffer (4) is provided with an extrusion seat (6), which extends into the movable path of the hinge arm (3). When the hinge is closed, the extrusion seat (6) contacts the hinge arm (3), generating a damping effect on the hinge arm (3) when closing. The bottom of the cup cover (5) is further provided with a spring slider (7), a return spring (8) is installed in the spring slider (7), and the return spring (8) pushes the spring slider (7) to always move in the hinge opening direction; The side wall of the extrusion seat (6) is provided with a blocking block (61) extending in the direction of the spring slider (7), and the side wall of the spring slider (7) is provided with a clearance groove (71). The blocking block (61) passes through the clearance groove (71) and contacts the reset spring (8), thereby generating a force to push the buffer (4) to reset. The cup cover (5) is also provided with a stroke regulator, which interacts with the spring slider (7) to limit the position of the spring slider (7) to change the buffer stroke of the buffer (4).

2. The cabinet door hinge with adjustable buffer stroke according to claim 1, characterized in that: The stroke regulator includes an adjusting plate (9), a hinge hole (52) and a limiting hole (53) provided on the cup cover (5), a hinge shaft (91) provided at the bottom of the adjusting plate (9) and oscillatingly hingedly installed in the hinge hole (52), a limiting shaft (92) provided at the bottom of the adjusting plate (9) and oscillatingly installed in the limiting hole (53), and correspondingly, a positioning groove (72) is provided on the spring slider (7), and the limiting shaft (92) limits the movement stroke of the spring slider (7) by selectively docking or separating the positioning groove (72).

3. The cabinet door hinge with adjustable buffer stroke according to claim 2, characterized in that: The upper surface of the cup cover (5) is concave downwardly and provided with a mounting groove (54), and the hinge hole (52) and the limiting hole (53) are arranged in the mounting groove (54) and pass through the bottom of the mounting groove (54).

4. The cabinet door hinge with adjustable buffer stroke according to claim 2, characterized in that: The middle of the hinge shaft (91) is hollowed out to provide a deformation groove (93), and a radially protruding anti-slip block (94) is provided on the cylindrical surface of the hinge shaft (91). The anti-slip block (94) abuts against the bottom of the cup cover (5) to prevent the hinge shaft (91) from slipping out.

5. The cabinet door hinge with adjustable buffer stroke according to claim 2, characterized in that: The limiting hole (53) is fan-shaped, and a raised anti-slip boss (57) is provided in the limiting hole (53). The limiting shaft (92) is selectively snapped onto one side of the anti-slip boss (57).

6. The cabinet door hinge with adjustable buffer stroke according to claim 2, characterized in that: The top of the adjustment plate (9) is provided with an upwardly protruding shifting block (95), and the shifting block (95) protrudes from the surface of the cup cover (5).

7. The cabinet door hinge with adjustable buffer stroke according to claim 1, characterized in that: A guide groove (56) is provided on the back of the cup cover (5), and correspondingly, a guide rail (73) is provided on the top of the spring slider (7), and the guide rail (73) is slidably installed in the guide groove (56).

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