Hinges with adjustable cushioning

Abstract

This utility model discloses a hinge with adjustable buffer, including a hinge cup, a hinge body, a hinge arm, a buffer cylinder, a guide sleeve, a pusher, and a lever. When it is necessary to reduce the buffering force of the hinge, the lever can be moved to working position one, where the limit hook engages with the limit block. When the hinge is folded, the distance by which the pusher pushes the guide sleeve to move backward is shortened, reducing the stroke of the buffer cylinder compressed by the guide sleeve, thus reducing the buffering force of the hinge. When it is necessary to increase the buffering force of the hinge, the lever can be moved to working position two, where the limit hook is disengaged from the limit block. When the hinge is folded, the distance by which the pusher pushes the guide sleeve to move returns to its original state, increasing the stroke of the buffer cylinder compressed by the guide sleeve, thus increasing the buffering force of the hinge.

Description

Technical Field

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

[0002] Hinges are traditional furniture hardware components used to connect cabinet bodies and doors. Existing soft-close hinges have a fixed damping force, which cannot be adjusted to suit actual usage. However, customer home environments are complex, and hinges with fixed damping forces may not be suitable for all users. If the hinge damping force is too small, heavy doors will make a slamming sound when closing; if the damping force is too large, the closing process will take too long. Therefore, there is an urgent need to further improve the existing hinge structure to make it suitable for various applications. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an embodiment of this utility model proposes a hinge with adjustable buffer, including a hinge cup, a hinge body, and a hinge arm. The two ends of the hinge arm are rotatably connected to the hinge body and the hinge cup, respectively. It also includes a buffer cylinder, a guide sleeve, a pusher, and a lever. The guide sleeve is slidably installed within the hinge body. One end of the buffer cylinder abuts against the hinge arm, and the other end abuts against the hinge. One end of the pusher is rotatably connected to the hinge cup. When the hinge is folded, the other end of the pusher drives the guide sleeve to compress the buffer cylinder. The lever is mounted on the hinge body and can move between position one and position two. When the lever is in position one, when the hinge is unfolded, the lever abuts against the other end of the guide sleeve and, upon contact, prevents the guide sleeve from moving away from the hinge cup. When the lever is in position two, when the hinge is unfolded, the lever releases the restriction on the other end of the guide sleeve.

[0004] According to some embodiments of the present invention, the pushing member includes a push plate disposed at the front end, the guide sleeve includes a main body, and the push block is disposed on the left and right sides of the main body. The push plate is used to push the push block backward, so that the guide sleeve moves backward and compresses the buffer cylinder.

[0005] According to some embodiments of this utility model, the main body includes a sealing end and an open end. The buffer cylinder is installed into the inner cavity of the main body through the open end, so that the piston rod of the buffer cylinder pushes against the sealing end. The top of the sealing end is provided with a clearance position and a limiting block. The push block includes a limiting hook. When the push block moves to the first working position, the limiting hook hooks the limiting block. When the push block moves to the second working position, during the movement of the guide sleeve, the clearance position passes under the limiting hook.

[0006] According to some embodiments of the present invention, the pusher further includes a tail plate, which is rotatably connected to the hinge cup; the two sides of the front end of the tail plate are bent forward to form the push plate, and both push plates have shaft holes, with a rotating shaft passing through the two shaft holes, and the shaft end of the rotating shaft is rotatably mounted on the hinge body.

[0007] According to some embodiments of the present invention, a double-needle shaft is installed between the tail plate and the hinge arm. The double-needle shaft includes a first needle shaft and a second needle shaft. The first needle shaft is used to rotatably connect the tail plate and the hinge cup, and the second needle shaft is used to rotatably connect the hinge arm and the hinge cup.

[0008] According to some embodiments of the present invention, the lever includes a base plate and a bottom plate, the bottom plate extending forward to form the limiting hook, the bottom plate being disposed at the top of the bottom plate; the top of the hinge body has a top window, the bottom plate sliding back and forth within the top window, the bottom plate being located below the top window, and the area of ​​the bottom plate being larger than the area of ​​the top window.

[0009] According to some embodiments of the present invention, the front or rear sidewall of the base plate is provided with a limiting protrusion, and the inner edge of the top window is provided with a first recess and a second recess in sequence, and the limiting protrusion cooperates with the first recess and the second recess.

[0010] According to some embodiments of this utility model, the limiting protrusion is made of two pieces, which are arranged side by side. The inner edge of the top window is also provided with a third recess, and the first recess, the second recess, and the third recess are arranged in sequence.

[0011] According to some embodiments of the present invention, a limiting baffle is provided on the side of the limiting block.

[0012] According to some embodiments of the present invention, an end plate is installed at the end of the piston rod of the buffer cylinder.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. When it is necessary to reduce the buffering force of the hinge, the limit hook can be engaged with the limit block when the toggle block is moved to working position one. When the hinge is folded, the distance that the pusher pushes the guide sleeve to move backward is shortened, which reduces the stroke of the guide buffer cylinder compressed by the guide sleeve, thus reducing the buffering force of the hinge. When it is necessary to increase the buffering force of the hinge, the limit hook can be disengaged from the limit block when the toggle block is moved to working position two. When the hinge is folded, the distance that the pusher pushes the guide sleeve to move returns to its original state, which increases the stroke of the guide buffer cylinder compressed by the guide sleeve, thus increasing the buffering force of the hinge.

[0015] 2. To fix the lever in working position one and working position two, a limiting protrusion is provided on the front or rear side wall of the base plate. The inner edge of the top window is provided with a first recess and a second recess in sequence. When the lever is in working position one, the limiting protrusion is engaged in the first recess. When the lever is in working position two, the limiting protrusion is engaged in the second recess, so that the lever does not move on its own due to non-operational force, thus affecting the normal use of the hinge.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is an overall exploded view of an embodiment of the present utility model;

[0019] Figure 2 This is a top view schematic diagram of an embodiment of the present utility model;

[0020] Figure 3 for Figure 2 Schematic diagram of the AA section;

[0021] Figure 4 This is a schematic diagram showing the combined state of the buffer cylinder, guide sleeve, pusher, and lever block in an embodiment of this utility model.

[0022] Figure 5 This is a schematic diagram of the exploded state of the buffer cylinder, guide sleeve, pusher, and lever block according to an embodiment of this utility model;

[0023] Figure 6 This is a schematic diagram of the working position two of the present invention, with the lower hinge in a non-folded state.

[0024] Figure 7 A schematic diagram of the hinge folding state at the working position of this utility model embodiment. Figure 1 ;

[0025] Figure 8 A schematic diagram of the hinge folding state at the working position of this utility model embodiment. Figure 2 ;

[0026] Figure 9 This is a side view schematic diagram of an embodiment of the present utility model;

[0027] Figure 10 for Figure 9 Schematic diagram of the BB cross section;

[0028] Figure 11 This is a schematic diagram of the combined state of the lever and hinge 102 in an embodiment of the present invention. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "multiple" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 3As shown in Figures 6 to 8, a hinge with adjustable buffer includes a hinge cup 101, a hinge body 102, a hinge arm 103, and a hinge shaft 104. One end of the hinge arm 103 is rotatably connected to the hinge body 102, and the other end of the hinge arm 103 is rotatably connected to the hinge cup 101. It also includes a buffer cylinder 100, a guide sleeve 200, a pusher 300, and a lever 400. The tail end of the buffer cylinder 100 pushes against the hinge arm 103. The guide sleeve 200 is installed inside the hinge body 102, and the buffer cylinder 100 is installed inside the guide sleeve 200. A clearance 201, a limiting block 202, and a limiting baffle 203 are sequentially arranged on the top of the guide sleeve 200. A limiting baffle 203 is arranged on the side of the limiting block 202, located on one side of the limiting block 202 and away from the clearance 201. A pusher 220 is arranged on the side of the guide sleeve 200. The rear end of the pusher 300... The end is rotatably connected to the hinge cup 101. The pusher 300 includes a push plate 310 disposed at the front end. When the hinge is folded, the push plate 310 pushes the push block 220 backward, causing the guide sleeve 200 to move backward and compress the buffer cylinder 100. The lever 400 is mounted on the hinge body 102. The lever 400 can move between position one and position two. The lever 400 includes a limit hook 410. When the lever 400 moves to working position one, the limit hook 410 hooks the limit block 202, and the limit baffle 203 abuts against the limit hook 410. When the lever 400 moves to working position two, the limit hook 410 is disengaged from the limit block 202. Due to the restriction of the limit baffle 203, the limit hook 410 can only move towards the clearance position 201. During the movement of the guide sleeve 200, the clearance position 201 passes under the limit hook 410.

[0034] When closing the door, if it is necessary to reduce the buffering force of the hinge, the limit hook 410 can be engaged with the limit block 202 when the toggle block is moved to the working position 1. This causes the guide sleeve 200 to compress the buffer cylinder 100 in advance, achieving two states: either the stroke of the buffer cylinder 100 is shortened or the buffer cylinder 100 is fully compressed. When the hinge is folded, i.e. when the door is closed, if the stroke of the buffer cylinder 100 is shortened by the guide sleeve 200, the distance that the pusher 300 pushes the guide sleeve 200 backward is shortened, reducing the stroke of the buffer cylinder 100 compressed by the guide sleeve 200. This reduces the buffering force of the hinge. In other words, the process of compressing the buffer cylinder 100 does not accompany the entire closing process of the door. Before the door is closed, or even before half of the door's closing stroke, the guide sleeve 200 has already fully compressed the buffer cylinder 100, so that the buffering provided by the hinge is only during the part of the door's closing stroke. If the buffer cylinder 100 is fully compressed by the guide sleeve 200 in advance, the hinge no longer has a buffering force.

[0035] When it is necessary to increase the buffering force of the hinge, the lever can be moved to working position two, which disengages the limit hook 410 from the limit block 202, restoring the compression stroke of the buffer cylinder 100. That is, when the hinge is folded, the pusher 300 pushes the guide sleeve 200 back to its original position. When closing the door, the pusher 300 remains in a pushing state on the guide sleeve 200 until the door is completely closed, at which point the pushing on the guide sleeve 200 stops, thus ensuring that the guide sleeve 200 maintains compression on the buffer cylinder 100 even when the door is closed. Until the door is completely closed, the guide sleeve 200 also stops compressing the buffer cylinder 100, so that the hinge always provides buffering during the door closing stroke; when the door is opened, after the hinge is unfolded, the buffer cylinder 100 drives the guide sleeve 200 to slide away from the hinge cup 101 and reset. At the same time, under the restriction of the base 105 in the hinge body 102, the guide sleeve 200 will not be completely disengaged, so that the push plate 310 and the push block 220 always remain in contact with each other, so that when the hinge is folded again, the push plate 310 can push the push block 220.

[0036] Reference Figure 5 As shown, the guide sleeve 200 includes a main body 210, which includes a sealing end 211 and an open end 212. The buffer cylinder 100 is inserted into the inner cavity of the main body 210 through the open end 212, so that the piston rod of the buffer cylinder 100 pushes against the sealing end 211. During the process of the pushed member 300 pushing the guide sleeve backward, the sealing end 211 compresses the buffer cylinder to obtain compression.

[0037] To increase the contact area between the sealing end 211 and the piston rod of the buffer cylinder 100, an end plate 110 is installed at the end of the piston rod of the buffer cylinder 100, and the end plate 110 contacts the sealing end 211.

[0038] Among them, the push block 220 is set on the left and right sides of the main body 210, and the clearance space 201 and the limiting block 202 are set on the top of the sealing end 211.

[0039] Reference Figure 5 As shown, since the internal space of the hinge 102 is limited, different components need to be able to be assembled compactly to make the most of the limited space. Therefore, the main body 210 also includes a top opening 213 to provide space for the installation of the lever 400 without affecting the overall structural strength of the main body 210.

[0040] Meanwhile, platform portions 214 are formed on the left and right sides of the top opening 213, and the lever 400 slides across the top surface of the two platform portions 214, allowing the lever 400 to move back and forth between the two platform portions 214; specifically, the lever 400 includes a base plate 420, which is placed across the top surface of the two platform portions 214.

[0041] Reference Figure 5As shown, the pusher 300 also includes a tail plate 320, which is rotatably connected to the hinge cup 101. The two sides of the front end of the tail plate 320 are bent forward to form push plates 310. Both push plates 310 have shaft holes 311. A rotating shaft 330 is inserted between the two shaft holes 311. The shaft end of the rotating shaft 330 is rotatably mounted on the hinge body 102. When the hinge is folded, the push plate 310 rotates about the rotating shaft 330.

[0042] Reference Figure 9 , 10 As shown, in order to enable the pusher 300 to rotate simultaneously with the hinge arm 103 and synchronously push the guide sleeve 200 when the hinge is folded, a double-needle shaft 500 is installed between the tail plate 320 and the hinge arm 103. The double-needle shaft 500 includes a first needle shaft 510 and a second needle shaft 520. The first needle shaft 510 is used to rotatably connect the tail plate 320 and the hinge cup 101, and the second needle shaft 520 is used to rotatably connect the hinge arm 103 and the hinge cup 101.

[0043] Reference Figure 5 As shown, the lever 400 includes a base plate 420 and a slider 430. The base plate 420 extends forward to form a limiting hook 410, and the slider 430 is disposed on the top of the base plate 420.

[0044] Specifically, a top window 600 is opened at the top of the hinge 102, the slider 430 slides back and forth in the top window 600, and the base plate 420 is located below the top window 600.

[0045] To prevent the slider from detaching from the top window 600 during sliding, the area of ​​the base plate 420 is larger than the area of ​​the top window 600.

[0046] Reference Figure 11 As shown, the front or rear sidewall of the slider 430 is provided with a limiting protrusion 431, and the inner edge of the top window 600 is provided with a first recess 610 and a second recess 620 in sequence. The limiting protrusion 431 cooperates with the first recess 610 and the second recess 620.

[0047] To fix the lever in working position one and working position two, a limiting protrusion 431 is provided on the front or rear side wall of the slider 430. The inner edge of the top window 600 is provided with a first recess 610 and a second recess 620 in sequence. When the lever is in working position one, the limiting protrusion 431 is engaged in the first recess 610. When the lever is in working position two, the limiting protrusion 431 is engaged in the second recess 620, so that the lever does not move on its own due to non-operational force, thus affecting the normal use of the hinge.

[0048] In this embodiment, two limiting protrusions 431 are used, and the two limiting protrusions 431 are arranged side by side. The inner edge of the top window 600 is also provided with a third recess 630. The first recess 610, the second recess 620 and the third recess 630 are arranged in sequence.

[0049] When the toggle block is in working position one, the two limiting protrusions 431 are respectively inserted into the first recess 610 and the second recess 620. When the toggle block is in working position two, the limiting protrusions 431 are inserted into the second recess 620 and the third recess 630.

[0050] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A hinge with adjustable buffer, comprising a hinge cup (101), a hinge body (102), and a hinge arm (103), wherein both ends of the hinge arm (103) are rotatably connected to the hinge body (102) and the hinge cup (101), respectively, characterized in that, Also includes: A guide sleeve (200) is slidably installed inside the hinge (102). A buffer cylinder (100) is installed inside the guide sleeve (200). One end of the buffer cylinder (100) abuts against the hinge arm (103), and the other end of the buffer cylinder (100) abuts against the guide sleeve (200). A pusher (300) is provided, one end of which is rotatably connected to the hinge cup (101); when the hinge is folded, the other end of the pusher drives the guide sleeve (200) to compress the buffer cylinder (100). A lever (400) is mounted on the hinge (102). The lever (400) can move between position one and position two. When the lever (400) is in position one, when the hinge is unfolded, the lever (400) can abut against the other end of the guide sleeve (200) and prevent the guide sleeve (200) from moving away from the hinge cup (101) when abutting. When the lever (400) is in position two, when the hinge is unfolded, the lever (400) releases the restriction on the other end of the guide sleeve (200).

2. A hinge with adjustable buffer according to claim 1, characterized in that, The pusher (300) includes a push plate (310) disposed at the front end, and the guide sleeve (200) includes a main body (210). Push blocks (220) are disposed on the left and right sides of the main body (210). The push plate (310) is used to push the push blocks (220) backward, so that the guide sleeve (200) moves backward and compresses the buffer cylinder (100).

3. A hinge with adjustable buffer according to claim 2, characterized in that, The main body (210) includes a sealed end (211) and an open end (212). The buffer cylinder (100) is inserted into the inner cavity of the main body (210) through the open end (212), so that the piston rod of the buffer cylinder (100) pushes against the sealed end (211). The top of the sealed end (211) is provided with a clearance position (201) and a limiting block (202) in sequence. The push block (400) includes a limiting hook (410). When the push block (400) moves to the working position one, the limiting hook (410) hooks the limiting block (202). When the push block (400) moves to the working position two, during the movement of the guide sleeve (200), the clearance position (201) can pass under the limiting hook (410). A limiting baffle (203) is also provided at the top of the sealing end (211), and the limiting baffle (203) is located at... The limiting block (202) is located on one side and away from the clearance position (201), and the limiting baffle (203) can abut against the push block (400).

4. A hinge with adjustable buffer according to claim 2, characterized in that, The main body (210) also includes a top opening (213), and platform portions (214) are formed on the left and right sides of the top opening (213), and the lever (400) slides across the top surface of the two platform portions (214).

5. A hinge with adjustable buffer according to claim 1, characterized in that, The pusher (300) also includes a tail plate (320), which is rotatably connected to the hinge cup (101); the two sides of the front end of the tail plate (320) are bent forward to form push plates (310), and each of the two push plates (310) has a shaft hole (311), and a rotating shaft (330) is inserted between the two shaft holes (311), and the shaft end of the rotating shaft (330) is rotatably mounted on the hinge body (102).

6. A hinge with adjustable buffer according to claim 5, characterized in that, A double-needle shaft (500) is installed between the tail plate (320) and the hinge arm (103). The double-needle shaft (500) includes a first needle shaft (510) and a second needle shaft (520). The first needle shaft (510) is used to rotatably connect the tail plate (320) and the hinge cup (101), and the second needle shaft (520) is used to rotatably connect the hinge arm (103) and the hinge cup (101).

7. A hinge with adjustable buffer according to claim 1, characterized in that, The lever (400) includes a base plate (420) and a slider (430). The base plate (420) extends forward to form the limiting hook (410). The slider (430) is located on the top of the base plate (420). The top of the hinge (102) has a top window (600). The slider (430) slides back and forth in the top window (600). The base plate (420) is located below the top window (600), and the area of ​​the base plate (420) is larger than the area of ​​the top window (600).

8. A hinge with adjustable buffer according to claim 7, characterized in that, The front or rear sidewall of the slider (430) is provided with a limiting protrusion (431), and the inner edge of the top window (600) is provided with a first recess (610) and a second recess (620) in sequence. The limiting protrusion (431) cooperates with the first recess (610) and the second recess (620).

9. A hinge with adjustable buffer according to claim 8, characterized in that, Two limiting protrusions (431) are used, and the two limiting protrusions (431) are arranged side by side. The inner edge of the top window (600) is also provided with a third recess (630). The first recess (610), the second recess (620), and the third recess (630) are arranged in sequence.

10. A hinge with adjustable buffer according to claim 3, characterized in that, The piston rod end of the buffer cylinder (100) is fitted with an end plate (110), which contacts the sealing end (211).

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