Hidden hydraulic hinge

Abstract

The utility model discloses a hidden hydraulic hinge which comprises a first mounting box, a second mounting box, a power mechanism, a first connecting arm and a second connecting arm. The first mounting box is provided with a first mounting groove and a first sliding groove, and a first mounting opening is formed in the bottom surface of the first mounting groove; the second mounting box is provided with a second mounting groove and a second sliding groove, a second mounting opening is formed in the bottom face of the second mounting groove, and narrowed slopes are arranged on the two sides of the rear side of the second sliding groove. The power mechanisms are arranged at the first mounting opening and the second mounting opening respectively and comprise reset springs and ejection blocks, and convex circle parts are arranged on the top surfaces of the ejection blocks; one end of the first connecting arm is hinged to the two sides of the first mounting groove and abuts against the convex round part, the other end is provided with a hydraulic shaft, and the two ends of the hydraulic shaft abut against the two sides of the second sliding groove in a sliding mode; one end of the second connecting arm is hinged to the two sides of the second mounting groove and abuts against the convex round part, and the other end is slidably connected with the first sliding groove. Therefore, the size of the hydraulic shaft can be reduced, and a better hiding effect and a better buffering effect are achieved.

Description

Technical Field

[0001] This utility model relates to the field of door control hardware, and in particular to a concealed hydraulic hinge. Background Technology

[0002] Hydraulic concealed hinges are a special type of hinge widely used in furniture, cabinets, and hidden doors to achieve smooth, silent closure and a concealed effect. Hydraulic concealed hinges have a built-in hydraulic damping system that provides a buffering effect when the door closes, preventing noise from sudden impacts and protecting both the door and the hinge itself from damage. Furthermore, these hinges can be hidden inside or along the edge of the door after installation, preserving the overall aesthetics of the door, making them particularly suitable for applications requiring a clean and minimalist appearance. Some hydraulic concealed hinges support three-dimensional adjustment, allowing for fine-tuning in the up / down, left / right, and forward / backward directions for more precise adjustment of the door's installation position and closing effect. Existing hydraulic hinges primarily use a piston with a push rod on the hydraulic shaft, guide posts on both sides of the push rod, and a sleeve with a spiral groove that engages with the guide posts. Opening and closing the door rotates the sleeve, which in turn moves the push rod, causing the piston to compress the hydraulic oil inside the hydraulic shaft to achieve a buffering effect. However, this complex structure results in a large hydraulic shaft and poor actual concealment. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a concealed hydraulic hinge, which can reduce the volume of the hydraulic shaft, thereby making the concealed hydraulic hinge structure compact and achieving better concealment and cushioning effects.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A concealed hydraulic hinge, including

[0006] The first mounting box is provided with a first mounting groove and a first sliding groove, and the bottom surface of the first mounting groove is provided with a first mounting opening;

[0007] The second mounting box is provided with a second mounting groove and a second sliding groove. The bottom surface of the second mounting groove is provided with a second mounting opening, and the rear sides of the second sliding groove are provided with narrowing slopes.

[0008] The power mechanism is respectively installed in the first mounting port and the second mounting port, and includes a return spring and a top block. The top surface of the top block is provided with a convex round portion.

[0009] The first connecting arm has one end hinged to both sides of the first mounting groove and abutting against the convex round portion, and the other end is provided with a hydraulic shaft, the two ends of which slide against both sides of the second sliding groove.

[0010] The second connecting arm has one end hinged to both sides of the second mounting groove and abutting against the convex round portion, and the other end slidably connected to the first sliding groove.

[0011] A concealed hydraulic hinge according to an embodiment of this utility model has at least the following beneficial effects: One of the first mounting boxes and the second mounting box is installed on the door frame, and the other is installed on the door leaf. When closing the door, the angle between the first and second mounting boxes decreases, and the first and second connecting arms rotate slowly out of the highest position of the top block's convex round portion. Under the elastic force of the return spring, the first and second connecting arms open, causing both ends of the hydraulic shaft of the first connecting arm to slide backward along both sides of the second sliding groove, and the other end of the second connecting arm to slide backward along the first sliding groove. Because the rear sides of the second sliding groove have narrowing slopes, the hydraulic shaft is gradually compressed, thus buffering the door closing. Therefore, this concealed hydraulic hinge provides a structure where the door leaf rotates and compresses the hydraulic shaft. The hydraulic shaft does not require a sleeve with a spiral groove inside, reducing the volume of the hydraulic shaft and making the concealed hydraulic hinge structure compact, achieving better concealment and buffering effects.

[0012] According to some embodiments of the present invention, the first mounting groove and the second mounting groove are staggered, the first connecting arm includes a first sliding part located in the second sliding groove and a first hinge part hinged to the first mounting groove, and the second connecting arm includes a second sliding part located in the first sliding groove and a second hinge part hinged to the second mounting groove.

[0013] The advantage is that this arrangement facilitates a tight fit between the first and second connecting arms during installation.

[0014] According to some embodiments of the present invention, the first mounting groove is provided with first side holes on both sides, the first hinge part is provided with a first rotating shaft and hinged to the first side holes, the second mounting groove is provided with second side holes on both sides, and the second hinge part is provided with a second rotating shaft and hinged to the second side holes.

[0015] The advantage is that this arrangement allows the first hinge to be rotatably mounted on both sides of the first mounting slot, and the second hinge to be rotatably mounted on both sides of the second mounting slot, ensuring a stable installation and guaranteed rotation.

[0016] According to some embodiments of the present invention, a third pivot is provided at the middle of the first hinge portion and the second hinge portion for connection.

[0017] The advantage is that the third pivot allows the first hinge and the second hinge to rotate and connect, preventing the first and second connecting arms from separating when they open and close.

[0018] According to some embodiments of the present invention, the first groove is provided with first slots on both sides, and the second sliding part is provided with sliding columns on both sides that are slidably connected to the first slots.

[0019] The advantage is that the first slot and the sliding post can play a limiting and guiding role, so that the second sliding part moves along the direction of the first slot on both sides of the first sliding groove.

[0020] According to some embodiments of the present invention, the second groove is provided with second slots on both sides, the ramp is provided behind the second slot, the first sliding part is provided with a through hole for accommodating the hydraulic shaft, the two ends of the hydraulic shaft slide against the second slot, and the two ends of the hydraulic shaft are provided with sliders, the sliders slide against the second slot.

[0021] The advantages are: the second slot, which cooperates with the slider, can play a limiting and guiding role, allowing the first sliding part to move along the direction of the second slot on both sides of the second slide groove; and the through hole facilitates the installation of the hydraulic shaft.

[0022] According to some embodiments of the present invention, the first hinge portion and the second hinge portion are provided with positioning recesses on their sides that cooperate with the convex round portion.

[0023] The advantage is that the positioning recess and the convex part can cooperate to stop the door when it is opened.

[0024] According to some embodiments of the present invention, both the first mounting port and the second mounting port are provided with spring mounting holes, which are used to mount the reset spring.

[0025] The advantage is that the spring mounting allows the reset spring to be installed in both the first and second mounting ports.

[0026] According to some embodiments of the present invention, the top block is provided with a mounting post, which is used to extend into the inside of the reset spring for installation.

[0027] The advantage is that the mounting post on the top block helps to stably mount the top block on the return spring.

[0028] According to some embodiments of this utility model, both the first mounting port and the second mounting port are provided with two reset springs, and the two reset springs are arranged side by side.

[0029] The advantage is that having two parallel return springs at the first and second mounting ports helps to provide sufficient force when closing the door.

[0030] 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

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0032] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0033] Figure 2 for Figure 1 A schematic diagram of the decomposition process;

[0034] Figure 3 for Figure 2 An exploded view of the first mounting box, the second mounting box, and the power mechanism.

[0035] Figure 4 for Figure 3 A schematic diagram of the second mounting box;

[0036] Figure 5 for Figure 2 An exploded view of the first and second connecting arms.

[0037] Reference numerals: First mounting box 100, first mounting groove 110, first sliding groove 120, first mounting opening 130, second mounting box 140, second mounting groove 150, second sliding groove 160, second mounting opening 170, ramp 180, return spring 190, top block 200, convex part 210, first connecting arm 220, hydraulic shaft 230, second connecting arm 240, first sliding part 250, first hinge part 260, second sliding part 270, second hinge part 280, first side hole 290, first rotating shaft 300, second side hole 310, second rotating shaft 320, third rotating shaft 330, first slot 340, sliding column 350, second slot 360, through hole 370, slider 380, positioning recess 390, spring mounting hole 400, mounting post 410. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The following is for reference. Figures 1-5 A concealed hydraulic hinge is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0043] like Figures 1-5 As shown, a concealed hydraulic hinge includes a first mounting box 100, a second mounting box 140, a power mechanism, a first connecting arm 220, and a second connecting arm 240.

[0044] The first mounting box 100 is provided with a first mounting groove 110 and a first sliding groove 120, and the bottom surface of the first mounting groove 110 is provided with a first mounting opening 130; the second mounting box 140 is provided with a second mounting groove 150 and a second sliding groove 160, the bottom surface of the second mounting groove 150 is provided with a second mounting opening 170, and the rear sides of the second sliding groove 160 are provided with narrowing ramps 180; the power mechanism is respectively provided in the first mounting opening 130 and the second mounting opening 170, including a return spring 190 and a top block 200, the top surface of the top block 200 is provided with a convex round portion 210; one end of the first connecting arm 220 is hinged to both sides of the first mounting groove 110 and abuts against the convex round portion 210, and the other end is provided with a hydraulic shaft 230, the two ends of the hydraulic shaft 230 are slidably abutting against both sides of the second sliding groove 160; one end of the second connecting arm 240 is hinged to both sides of the second mounting groove 150 and abuts against the convex round portion 210, and the other end is slidably connected to the first sliding groove 120. In this system, one of the first mounting box 100 and the second mounting box 140 is installed on the door frame, and the other is installed on the door leaf. When the door is closed, the angle between the first mounting box 100 and the second mounting box 140 decreases, and the first connecting arm 220 and the second connecting arm 240 rotate slowly out of the highest position of the convex round portion 210 of the top block 200. Under the elastic force of the return spring 190, the first connecting arm 220 and the second connecting arm 240 open, allowing the two ends of the hydraulic shaft 230 of the first connecting arm 220 to slide backward along both sides of the second slide groove 160, and the other end of the second connecting arm 240 to slide backward along the first slide groove 120. Since the second slide groove 160 has narrowing ramps 180 on both sides at the rear, the hydraulic shaft 230 is gradually compressed, thus buffering the door closing. Therefore, this concealed hydraulic hinge provides a structure in which the door leaf rotates and compresses the hydraulic shaft 230. The hydraulic shaft 230 does not need a sleeve with a spiral groove inside, which can reduce the volume of the hydraulic shaft 230, making the concealed hydraulic hinge structure compact and achieving better concealment and buffering effects.

[0045] like Figure 2 and Figure 5 As shown, the first mounting groove 110 and the second mounting groove 150 are staggered. The first connecting arm 220 includes a first sliding portion 250 located in the second sliding groove 160 and a first hinge portion 260 hinged to the first mounting groove 110. The second connecting arm 240 includes a second sliding portion 270 located in the first sliding groove 120 and a second hinge portion 280 hinged to the second mounting groove 150. This arrangement facilitates a tight fit between the first connecting arm 220 and the second connecting arm 240 during installation. Specifically, as shown... Figure 3As shown, the first mounting groove 110 has first side holes 290 on both sides, and the first hinge portion 260 has a first rotating shaft 300 hinged to the first side holes 290. The second mounting groove 150 has second side holes 310 on both sides, and the second hinge portion 280 has a second rotating shaft 320 hinged to the second side holes 310. This arrangement facilitates the rotatable mounting of the first hinge portion 260 on both sides of the first mounting groove 110 and the second hinge portion 280 on both sides of the second mounting groove 150, ensuring stable installation and rotation. Furthermore, a third rotating shaft 330 connects the first hinge portion 260 and the second hinge portion 280 at their midpoints. The third rotating shaft 330 allows the first hinge portion 260 and the second hinge portion 280 to be rotatably connected, preventing the first connecting arm 220 and the second connecting arm 240 from separating when opening and closing.

[0046] like Figure 3 and Figure 4 As shown, the first slide groove 120 has first slots 340 on both sides, and the second sliding part 270 has sliding posts 350 on both sides that are slidably connected to the first slots 340. The first slots 340 and sliding posts 350 cooperate to restrict and guide the movement of the second sliding part 270 along the directions of the first slots 340 on both sides of the first slide groove 120. Correspondingly, the second slide groove 160 has second slots 360 on both sides, and a ramp 180 is located behind the second slots 360. The first sliding part 250 has through holes 370 for accommodating a hydraulic shaft 230. Both ends of the hydraulic shaft 230 slidably abut against the second slots 360, and both ends of the hydraulic shaft 230 have sliders 380 that slidably abut against the second slots 360. The second slots 360 and sliders 380 cooperate to restrict and guide the movement of the first sliding part 250 along the directions of the second slots 360 on both sides of the second slide groove 160. The through holes 370 facilitate the installation of the hydraulic shaft 230.

[0047] It is worth mentioning that, such as Figure 5 As shown, the first hinge portion 260 and the second hinge portion 280 have positioning recesses 390 on their sides that mate with the convex round portion 210. The positioning recesses 390 mate with the convex round portion 210 to stop the door when it is opened.

[0048] like Figure 3As shown, both the first mounting port 130 and the second mounting port 170 are provided with spring mounting holes 400 for mounting the return spring 190. The spring mounting holes 400 facilitate the installation of the return spring 190 in the first mounting port 130 and the second mounting port 170. Furthermore, the top block 200 is provided with a mounting post 410, which is used to extend into the inside of the return spring 190 for installation. The mounting post 410 on the top block 200 helps to stably mount the top block 200 on the return spring 190. It should be noted that both the first mounting port 130 and the second mounting port 170 are provided with two return springs 190, arranged side-by-side. The arrangement of two parallel return springs 190 in the first mounting port 130 and the second mounting port 170 helps to provide sufficient force when closing the door.

[0049] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., 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.

[0050] 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 concealed hydraulic hinge, characterized in that, include: The first mounting box (100) is provided with a first mounting groove (110) and a first sliding groove (120), and the bottom surface of the first mounting groove (110) is provided with a first mounting opening (130). The second mounting box (140) is provided with a second mounting groove (150) and a second sliding groove (160). The bottom surface of the second mounting groove (150) is provided with a second mounting opening (170), and the rear sides of the second sliding groove (160) are provided with narrowing ramps (180). The power mechanism is respectively installed in the first mounting port (130) and the second mounting port (170), including a return spring (190) and a top block (200), and the top surface of the top block (200) is provided with a convex round part (210). The first connecting arm (220) has one end hinged to both sides of the first mounting groove (110) and abuts against the convex round part (210), and the other end is provided with a hydraulic shaft (230), the two ends of which slide against both sides of the second sliding groove (160); The second connecting arm (240) is hinged at one end to both sides of the second mounting groove (150) and abuts against the convex round portion (210), and slidably connected to the first sliding groove (120) at the other end.

2. The concealed hydraulic hinge according to claim 1, characterized in that, The first mounting groove (110) and the second mounting groove (150) are offset from each other. The first connecting arm (220) includes a first sliding part (250) located in the second sliding groove (160) and a first hinge part (260) hinged to the first mounting groove (110). The second connecting arm (240) includes a second sliding part (270) located in the first sliding groove (120) and a second hinge part (280) hinged to the second mounting groove (150).

3. A concealed hydraulic hinge according to claim 2, characterized in that, The first mounting groove (110) has a first side hole (290) on both sides, and the first hinge part (260) has a first rotating shaft (300) that is hinged to the first side hole (290). The second mounting groove (150) has a second side hole (310) on both sides, and the second hinge part (280) has a second rotating shaft (320) that is hinged to the second side hole (310).

4. A concealed hydraulic hinge according to claim 2, characterized in that, A third pivot (330) is provided at the middle of the first hinge (260) and the second hinge (280).

5. A concealed hydraulic hinge according to claim 2, characterized in that, The first groove (120) has a first slot (340) on both sides, and the second sliding part (270) has a sliding column (350) on both sides that is slidably connected to the first slot (340).

6. A concealed hydraulic hinge according to claim 2, characterized in that, The second groove (160) has a second slot (360) on both sides. The ramp (180) is located behind the second slot (360). The first sliding part (250) has a through hole (370) for accommodating the hydraulic shaft (230). The two ends of the hydraulic shaft (230) slide against the second slot (360). The two ends of the hydraulic shaft (230) are provided with sliders (380), and the sliders (380) slide against the second slot (360).

7. A concealed hydraulic hinge according to claim 2, characterized in that, The first hinge portion (260) and the second hinge portion (280) are provided with positioning recesses (390) on their sides that cooperate with the convex round portion (210).

8. A concealed hydraulic hinge according to claim 1, characterized in that, Both the first mounting port (130) and the second mounting port (170) are provided with spring mounting holes (400), which are used to install the return spring (190).

9. A concealed hydraulic hinge according to claim 8, characterized in that, The top block (200) is provided with a mounting post (410), which is used to extend into the inside of the reset spring (190) for installation.

10. A concealed hydraulic hinge according to claim 1, characterized in that, Both the first mounting port (130) and the second mounting port (170) are provided with two reset springs (190), which are arranged side by side.

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