Buffering hinge

Abstract

The utility model discloses a buffering hinge which comprises a hinge cup and a hinge arm, the hinge cup and the hinge arm are hinged through an upper connecting rod and a lower connecting rod, and the upper connecting rod and the lower connecting rod move relative to the hinge cup and the hinge arm so as to achieve opening and closing of the hinge. The device further comprises a damper. A containing cavity is formed in the hinge arm, the damper is rotationally arranged in the containing cavity, and the telescopic end of the damper is hinged to the lower connecting rod. When the hinge is closed, the lower connecting rod can be driven to move, and then the telescopic end of the damper is driven to stretch out and draw back to generate a damping effect on hinge closing. Therefore, according to the buffering hinge, the lower connecting rod is directly hinged to the telescopic end of the damper, so that the damping closing of the hinge is achieved, meanwhile, the number of parts is reduced, and the buffering hinge is more compact in structure, low in cost and convenient to assemble.

Description

Technical Field

[0001] This utility model relates to the field of hardware accessories technology, and in particular to a buffer hinge. Background Technology

[0002] In modern daily life, hardware hinges are widely used in the connection and opening / closing mechanisms of various containers, furniture, and electronic devices. To improve the comfort of using hinges and extend their service life, soft-close hinges have emerged. They mainly achieve smooth buffering during the hinge closing process by setting a damper inside the hinge arm, preventing large impacts and noise caused by rapid closing.

[0003] Existing buffer hinge structures are complex and require multiple transmission components to drive the damper to extend and retract, resulting in a large number of parts, difficult assembly, and high costs. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a buffer hinge, which directly hinges the lower connecting rod to the telescopic end of the damper, thereby reducing the number of parts while achieving hinge damping closure, making its structure more compact, cost-effective, and easy to assemble.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] A buffer hinge includes a hinge cup and a hinge arm. The hinge cup and the hinge arm are hinged together by an upper link and a lower link. The upper link and the lower link move relative to the hinge cup and the hinge arm to open and close the hinge.

[0007] It also includes a damper; a receiving cavity is formed inside the hinge arm, the damper is rotatably disposed in the receiving cavity and the telescopic end of the damper is hinged to the lower connecting rod;

[0008] When the hinge is closed, it can drive the lower connecting rod to move, which in turn drives the telescopic end of the damper to extend or retract to generate a damping effect on the hinge when it is closed.

[0009] As an optional implementation, it also includes a first pin; a first through hole is provided on the telescopic end of the damper, and a first hinge hole is provided on the lower connecting rod near the end of the damper. The first pin passes through the first through hole and the first hinge hole respectively to realize the telescopic end of the damper and the lower connecting rod hinged.

[0010] As an optional implementation, it further includes a mounting base fixedly disposed within the accommodating cavity, the mounting base having a mounting cavity formed therein, and the fixed end of the damper disposed within the mounting cavity and hinged to the mounting base.

[0011] As an optional implementation, a second pin is also included; a second through hole is provided on the fixed end of the damper, and a second hinge hole is provided on the mounting base. The second pin passes through the second through hole and the second hinge hole respectively to achieve hinge connection between the fixed end of the damper and the mounting base.

[0012] As an optional implementation, it also includes at least two third pins arranged at intervals, the hinge arm having a third hinge hole corresponding to the third pin, and the mounting base having a fourth hinge hole corresponding to the third pin, the third pins passing through the third hinge hole and the fourth hinge hole respectively to realize the connection between the mounting base and the hinge arm.

[0013] As an optional implementation, limiting protrusions are provided on both outer side walls of the mounting base, and the two limiting protrusions abut against the two inner side walls of the accommodating cavity to restrict the movement of the mounting base along the axis of the third pin.

[0014] As an optional implementation, a U-shaped needle is also included, the U-shaped needle comprising a first pin and a second pin, wherein:

[0015] A fifth hinge hole is provided on one end of the upper connecting rod near the hinge cup, and a sixth hinge hole corresponding to the fifth hinge hole is provided on the hinge cup. The first pin passes through the fifth hinge hole and the sixth hinge hole respectively to realize the hinge between the upper connecting rod and the hinge cup.

[0016] A seventh hinge hole is provided on one end of the lower connecting rod near the hinge cup, and an eighth hinge hole corresponding to the seventh hinge hole is provided on the hinge cup. The second pin passes through the seventh hinge hole and the eighth hinge hole respectively to realize the hinge connection between the lower connecting rod and the hinge cup.

[0017] As an optional implementation, a fourth pin and a fifth pin are also included, wherein:

[0018] A ninth hinge hole is provided on one end of the upper connecting rod near the hinge arm, and a tenth hinge hole corresponding to the ninth hinge hole is provided on the hinge arm. The fourth pin passes through the ninth hinge hole and the tenth hinge hole respectively to realize the hinge connection between the upper connecting rod and the hinge arm.

[0019] The lower connecting rod has an eleventh hinge hole at one end near the hinge arm, and the hinge arm has a twelfth hinge hole corresponding to the eleventh hinge hole. The fifth pin passes through the eleventh hinge hole and the twelfth hinge hole respectively to achieve the hinge connection between the lower connecting rod and the hinge arm.

[0020] As an optional implementation, it also includes a torsion spring sleeved on the fourth pin to provide hinge closing force, the two ends of the torsion spring abutting against the inner wall of the hinge arm, and the middle of the torsion spring abutting against the lower connecting rod.

[0021] As an optional implementation, a sixth pin is also provided on the lower connecting rod near the hinge arm, and a rubber sleeve is fitted on the sixth pin, with the middle part of the torsion spring abutting against the rubber sleeve.

[0022] In summary, this utility model has the following technical effects:

[0023] 1. The buffer hinge of this utility model directly hinges the lower connecting rod to the telescopic end of the damper, which reduces the number of parts while achieving the damping closure of the hinge, making its structure more compact, cost-effective, and easy to assemble.

[0024] 2. The buffer hinge of this utility model has a mounting base between the hinge arm and the damper. The fixed end of the damper is set in the mounting cavity of the mounting base. In this way, the mounting cavity can limit the fixed end of the damper, prevent the damper from shifting during operation, ensure the normal operation of the damper, and improve the stability of the product structure. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the buffer hinge of this utility model;

[0027] Figure 2 This is an exploded view of the buffer hinge of this utility model;

[0028] Figure 3 This is an exploded view of part of the structure of the buffer hinge of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the buffer hinge of this utility model after the hinge arm is hidden.

[0030] The meanings of the reference numerals in the attached figures are as follows:

[0031] 1. Hinge cup; 101. Sixth hinge hole; 102. Eighth hinge hole; 2. Hinge arm; 201. Third hinge hole; 202. Tenth hinge hole; 203. Twelfth hinge hole; 3. Upper connecting rod; 301. First side plate; 3011. Fifth hinge hole; 3012. Ninth hinge hole; 4. Lower connecting rod; 401. Second side plate; 4011. First hinge hole; 4012. Eleventh hinge hole; 4013. Third through hole; 402. Seventh hinge hole; 5. Damper; 50 1. Fixed end; 5011. Second through hole; 502. Telescopic end; 5021. First through hole; 6. Mounting base; 601. Third side plate; 6011. Second hinge hole; 6012. Fourth hinge hole; 6013. Limiting protrusion; 7. First pin; 8. Second pin; 9. Third pin; 10. U-shaped pin; 1001. First pin; 1002. Second pin; 11. Fourth pin; 12. Fifth pin; 13. Sixth pin; 14. Rubber sleeve; 15. Torsion spring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0034] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0035] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0036] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0037] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0038] See Figures 1 to 4 This application provides a buffer hinge, including a hinge cup 1 and a hinge arm 2. The hinge cup 1 and the hinge arm 2 are hinged together by an upper connecting rod 3 and a lower connecting rod 4. The upper connecting rod 3 and the lower connecting rod 4 move relative to the hinge cup 1 and the hinge arm 2 to open and close the hinge. It also includes a damper 5, in which a receiving cavity is formed inside the hinge arm 2. The damper 5 is rotatably disposed within the receiving cavity, and its telescopic end is hinged to the lower connecting rod 4. Therefore, when the hinge is closed, it can drive the lower connecting rod 4 to move, thereby causing the telescopic end 502 of the damper 5 to extend and retract, thus providing a damping effect for the hinge closure.

[0039] The buffer hinge of this utility model directly hinges the lower connecting rod 4 to the telescopic end of the damper 5, which reduces the number of parts while achieving the damping closure of the hinge, making its structure more compact, cost-effective, and easy to assemble.

[0040] Additionally, the device includes a mounting base 6 fixedly disposed within the accommodating cavity. The mounting base 6 has a mounting cavity formed within it, and the fixed end 501 of the damper 5 is disposed within the mounting cavity and hinged to the mounting base 6. Thus, by providing the mounting base 6 between the hinge arm 2 and the damper 5, the mounting cavity within the mounting base 6 can limit the fixed end 501 of the damper 5, preventing the damper 5 from shifting during operation, ensuring the normal operation of the damper 5, and improving the stability of the product structure.

[0041] Preferably, the damper 5 is a hydraulic cylinder, which includes a cylinder body and a piston rod disposed on the cylinder body; wherein, the cylinder body forms a fixed end 501 and is hinged to the mounting base 6; the piston rod forms a telescopic end 502 and is hinged to the lower connecting rod 4.

[0042] Furthermore, it also includes a first pin 7 and a second pin 8. The piston rod of the damper 5 has a first through hole 5021, and the lower connecting rod 4 has a first hinge hole 4011 at one end near the damper 5. The first pin 7 passes through the first through hole 5021 and the first hinge hole 4011 respectively to achieve the hinge connection between the piston rod and the lower connecting rod 4. In addition, the cylinder of the damper 5 has a second through hole 5011, and the mounting base 6 has a second hinge hole 6011. The second pin 8 passes through the second through hole 5011 and the second hinge hole 6011 respectively to achieve the hinge connection between the cylinder and the mounting base 6.

[0043] See Figure 2-3 The mounting base also includes two spaced-apart third pins 9. The hinge arm 2 has an inverted U-shaped structure to form an internal accommodating cavity. Both sides of the hinge arm 2 have third hinge holes 201 through which the third pins 9 can pass. The mounting base 6 also has an inverted U-shaped structure and has two spaced-apart third side plates 601. The two third side plates 601 correspond to the two side walls of the accommodating cavity, respectively. The third side plates 601 have fourth hinge holes 6012 through which the third pins 9 can pass. Thus, when the third pins 9 pass through the third hinge holes 201 and the fourth hinge holes 6012, the mounting base 6 and the hinge arm 2 can be connected. In addition, the outer side walls of the two third side plates 601 in the mounting base 6 are provided with limiting protrusions 6013. The two limiting protrusions 6013 abut against the two inner side walls of the accommodating cavity, thereby restricting the movement of the mounting base 6 along the axial direction of the third pins 9.

[0044] Therefore, by setting two third pins 9 to connect the mounting base 6 and the hinge arm 2, the mounting base 6 can only move along the axis of the third pin 9. Then, by setting a limiting protrusion 6013 on the mounting base 6 to abut against the inner wall of the accommodating cavity, the mounting base 6 can be completely limited and fixed, thereby ensuring that the mounting base 6 is stably assembled on the hinge arm 2 and improving the stability of the product structure.

[0045] It should be noted that in other embodiments, the number of the third pin 9 may be more than two, which can be selected according to the length of the mounting base 6, and there is no limit to the number of them here.

[0046] Additionally, it includes a U-shaped needle 10, which includes a first needle 1001 and a second needle 1002. The upper connecting rod 3 has a fifth hinge hole 3011 at one end near the hinge cup 1, and the hinge cup 1 has a sixth hinge hole 101 corresponding to the fifth hinge hole 3011. The first needle 1001 passes through the fifth hinge hole 3011 and the sixth hinge hole 101 respectively to achieve the hinge between the upper connecting rod 3 and the hinge cup 1. The lower connecting rod 4 has a seventh hinge hole 402 at one end near the hinge cup 1, and the hinge cup 1 has an eighth hinge hole 102 corresponding to the seventh hinge hole 402. The second needle 1002 passes through the seventh hinge hole 402 and the eighth hinge hole 102 respectively to achieve the hinge between the lower connecting rod 4 and the hinge cup 1.

[0047] In addition, it includes a fourth pin 11 and a fifth pin 12. The upper connecting rod 3 has a ninth hinge hole 3012 at one end near the hinge arm 2. The hinge arm 2 has a tenth hinge hole 202 corresponding to the ninth hinge hole 3012. The fourth pin 11 passes through the ninth hinge hole 3012 and the tenth hinge hole 202 respectively to achieve the hinge connection between the upper connecting rod 3 and the hinge arm 2. The lower connecting rod 4 has an eleventh hinge hole 4012 at one end near the hinge arm 2. The hinge arm 2 has a twelfth hinge hole 203 corresponding to the eleventh hinge hole 4012. The fifth pin 12 passes through the eleventh hinge hole 4012 and the twelfth hinge hole 203 respectively to achieve the hinge connection between the lower connecting rod 4 and the hinge arm 2.

[0048] Preferably, the upper connecting rod 3 is bent on both sides to form two spaced first side plates 301. The fifth hinge hole 3011 is opened on the two first side plates 301 at one end near the hinge cup 1, and the ninth hinge hole 3012 is opened on the two first side plates 301 at one end near the hinge arm 2. The lower connecting rod 4 is bent at one end near the hinge cup 1 to form a seventh hinge hole 402. The lower connecting rod 4 is bent on both sides at one end near the hinge arm 2 to form two second side plates 401. The first hinge hole 4011 and the eleventh hinge hole 4012 are both opened on the two second side plates 401.

[0049] Preferably, the lower connecting rod 4 is made of 50# high-quality carbon steel.

[0050] See Figure 4 It also includes a torsion spring 15 sleeved on the fourth pin 11 to provide hinge closing force. The two ends of the torsion spring 15 abut against the inner wall of the hinge arm 2, and the middle part of the torsion spring 15 abuts against the lower connecting rod 4. The two second side plates 401 of the lower connecting rod 4 are also provided with third through holes 4013. A sixth pin 13 passes through the two third through holes 4013. A rubber sleeve 14 is sleeved on the sixth pin 13. The middle part of the torsion spring 15 abuts against the rubber sleeve 14, thereby avoiding wear and improving the service life of the parts.

[0051] In summary, this utility model has the following technical effects:

[0052] (I) The buffer hinge of this utility model directly hinges the lower connecting rod 4 to the telescopic end 502 of the damper 5. While achieving the damping closure of the hinge, it reduces the number of parts, making its structure more compact, cost-effective, and easy to assemble.

[0053] (II) The buffer hinge of this utility model provides a mounting base 6 between the hinge arm 2 and the damper 5. The fixed end 501 of the damper 5 is located in the mounting cavity of the mounting base 6. In this way, the mounting cavity can limit the fixed end 501 of the damper 5, prevent the damper 5 from shifting during operation, ensure the normal operation of the damper 5, and improve the stability of the product structure.

[0054] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A buffer hinge, characterized in that, Includes a hinge cup (1) and a hinge arm (2), the hinge cup (1) and the hinge arm (2) are hinged together by an upper connecting rod (3) and a lower connecting rod (4), the upper connecting rod (3) and the lower connecting rod (4) move relative to the hinge cup (1) and the hinge arm (2) to realize the opening and closing of the hinge, wherein: It also includes a damper (5); the hinge arm (2) has a cavity inside, the damper (5) is rotatably disposed in the cavity and the telescopic end of the damper (5) is hinged to the lower connecting rod (4); When the hinge is closed, it can drive the lower link (4) to move, which in turn drives the extension end (502) of the damper (5) to extend and retract to generate a damping effect on the hinge closing.

2. The buffer hinge according to claim 1, characterized in that: It also includes a first pin (7); a first through hole (5021) is provided on the telescopic end (502) of the damper (5), and a first hinge hole (4011) is provided on the lower connecting rod (4) near the end of the damper (5). The first pin (7) passes through the first through hole (5021) and the first hinge hole (4011) respectively to realize the telescopic end (502) of the damper (5) and the lower connecting rod (4) hinged.

3. The buffer hinge according to claim 1 or 2, characterized in that: It also includes a mounting base (6) fixedly disposed in the accommodating cavity, wherein a mounting cavity is formed in the mounting base (6), and the fixed end (501) of the damper (5) is disposed in the mounting cavity and hinged to the mounting base (6).

4. The buffer hinge according to claim 3, characterized in that: It also includes a second pin (8); a second through hole (5011) is provided on the fixed end (501) of the damper (5), and a second hinge hole (6011) is provided on the mounting base (6). The second pin (8) passes through the second through hole (5011) and the second hinge hole (6011) respectively to realize the hinge between the fixed end (501) of the damper (5) and the mounting base (6).

5. The buffer hinge according to claim 3, characterized in that: It also includes at least two third pins (9) arranged at intervals. The hinge arm (2) is provided with a third hinge hole (201) corresponding to the third pin (9). The mounting base (6) is provided with a fourth hinge hole (6012) corresponding to the third pin (9). The third pin (9) passes through the third hinge hole (201) and the fourth hinge hole (6012) respectively to realize the connection between the mounting base (6) and the hinge arm (2).

6. The buffer hinge according to claim 5, characterized in that: Limiting protrusions (6013) are provided on both outer side walls of the mounting base (6). The two limiting protrusions (6013) abut against the two inner side walls of the accommodating cavity to restrict the movement of the mounting base (6) along the axis of the third pin (9).

7. The buffer hinge according to claim 1 or 2, characterized in that: It also includes a U-shaped needle (10), which includes a first pin (1001) and a second pin (1002), wherein: A fifth hinge hole (3011) is provided on one end of the upper connecting rod (3) near the hinge cup (1), and a sixth hinge hole (101) corresponding to the fifth hinge hole (3011) is provided on the hinge cup (1). The first pin (1001) passes through the fifth hinge hole (3011) and the sixth hinge hole (101) respectively to realize the hinge between the upper connecting rod (3) and the hinge cup (1); A seventh hinge hole (402) is provided on one end of the lower connecting rod (4) near the hinge cup (1), and an eighth hinge hole (102) corresponding to the seventh hinge hole (402) is provided on the hinge cup (1). The second pin (1002) passes through the seventh hinge hole (402) and the eighth hinge hole (102) respectively to realize the hinge between the lower connecting rod (4) and the hinge cup (1).

8. The buffer hinge according to claim 1 or 2, characterized in that: It also includes a fourth pin (11) and a fifth pin (12), wherein: The upper connecting rod (3) has a ninth hinge hole (3012) at one end near the hinge arm (2), and the hinge arm (2) has a tenth hinge hole (202) corresponding to the ninth hinge hole (3012). The fourth pin (11) passes through the ninth hinge hole (3012) and the tenth hinge hole (202) respectively to realize the hinge between the upper connecting rod (3) and the hinge arm (2). The lower connecting rod (4) has an eleventh hinge hole (4012) at one end near the hinge arm (2), and the hinge arm (2) has a twelfth hinge hole (203) corresponding to the eleventh hinge hole (4012). The fifth pin (12) passes through the eleventh hinge hole (4012) and the twelfth hinge hole (203) respectively to realize the hinge between the lower connecting rod (4) and the hinge arm (2).

9. The buffer hinge according to claim 8, characterized in that: It also includes a torsion spring (15) sleeved on the fourth pin (11) to provide hinge closing force, the two ends of the torsion spring (15) abutting against the inner wall of the hinge arm (2), and the middle part of the torsion spring (15) abutting against the lower connecting rod (4).

10. The buffer hinge according to claim 9, characterized in that, A sixth pin (13) is also provided on one end of the lower connecting rod (4) near the hinge arm (2), and a rubber sleeve (14) is fitted on the sixth pin (13), with the middle part of the torsion spring (15) abutting against the rubber sleeve (14).

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