Three-section force double-groove oil cylinder damping hinge

Abstract

The utility model relates to the technical field of door cabinet installation hinges, in particular to a three-section force double-groove oil cylinder damping hinge which comprises a hinge arm body, an upper face piece is connected to the top end of the outer wall of the hinge arm body, a bottom piece is connected to the bottom end of the inner wall of the hinge arm body, and a hinge cup is arranged at one end of the hinge arm body. The hinge arm body and the hinge cup are connected through a transmission part, the transmission part comprises an oil cylinder sheath, and the oil cylinder sheath is installed at the side end of the inner wall of the hinge arm body and is close to one side of the hinge cup. When the hinge is opened by a maximum angle and is close to the closed state, the convex point has resistance, the hinge is uniformly and slowly closed, the stamping groove can replace the convex block, and the manufacturing difficulty is not increased.

Description

Technical Field

[0001] This utility model relates to the field of door and cabinet installation hinge technology, specifically to a three-stage force double-groove hydraulic cylinder damping hinge. Background Technology

[0002] Three-stage hinges are a type of high-performance furniture hardware. When opening a cabinet door, they can be suspended at any angle, and when the door is about to close, they achieve a silent and buffered closure at a small angle, effectively preventing fingers from being pinched and protecting the door. To achieve this technical purpose, some three-stage hinges add plastic parts to the spring and hinge plate positions to increase resistance. This increases resistance when the hinge plates close, resulting in a slow and silent closure. However, this technique is not conducive to the long-term use of the hinge. Over time, the plastic will wear or age, affecting the product's performance.

[0003] A furniture soft-close hinge is disclosed in Chinese Patent Publication No. CN 211714851U. The specification of this patent includes an appendix... Figure 1 The 81 guide post is equipped with a protrusion. The transmission is driven by hooking the protrusion. This transmission method increases the manufacturing difficulty and is not conducive to cost reduction and efficiency improvement. In addition, the oil cylinder is not double groove and the oil circuit circulation is single, which is not conducive to the pressure speed.

[0004] In conclusion, it is necessary to invent a three-stage force double-groove hydraulic cylinder damping hinge. Utility Model Content

[0005] To address this issue, this utility model provides a three-section double-groove hydraulic cylinder damping hinge, which solves the problem that the patented technology uses a hook to hold a protrusion to drive the transmission. This transmission method increases the manufacturing difficulty and is not conducive to cost reduction and efficiency improvement. In addition, the hydraulic cylinder is not double-groove, and the oil circuit circulation is single, which is not conducive to the pressure speed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-section force double-groove hydraulic cylinder damping hinge, comprising a hinge arm body, an upper part connected to the top of the outer wall of the hinge arm body, a bottom part connected to the bottom of the inner wall of the hinge arm body, a hinge cup provided at one end of the hinge arm body, and the hinge arm body and the hinge cup being connected by a transmission component.

[0007] Preferably, the transmission component includes a cylinder sleeve, which is installed on the inner wall side of the hinge arm and close to the hinge cup. The outer wall side of the cylinder sleeve is provided with a mounting groove, and the cylinder is installed on the inner wall of the mounting groove.

[0008] Preferably, a U-shaped sliding guide block is provided at the front and rear ends of the outer wall of the cylinder sleeve and at the end away from the hinge cup, and a guide block is fixed at the front and rear ends of the outer wall of the cylinder sleeve and at the position corresponding to the U-shaped sliding guide block.

[0009] Preferably, the outer wall of the U-shaped sliding guide block is provided with guide grooves at the front and rear ends and at positions corresponding to the guide block, and the outer wall of the guide block is slidably connected to the inner wall of the guide groove.

[0010] Preferably, a straight centering pin is provided on the outer wall of the cylinder sleeve and near the hinge cup. One end of the straight centering pin is connected to the inner wall side of the hinge arm body by a rotating pin. A torsion spring for reset is sleeved on the outer wall of the rotating pin. One end of the straight centering pin abuts against the side end of the cylinder sleeve by providing a protruding abutment.

[0011] Preferably, a four-hole connector is hinged to one end of the hinge arm body and below the cylinder sleeve, and the other end of the four-hole connector is hinged to the inner wall side of the hinge arm body at a corresponding position.

[0012] Preferably, the upper and lower ends of the outer wall of the straight-sided lipstick are formed with stamping grooves by stamping, and the stamping grooves are arranged in a concave-convex manner.

[0013] Preferably, a reset spring is installed at the bottom of the cylinder, a cylinder piston is provided at the upper end of the spring, a piston top block is provided between the spring and the stamping groove, and a double oil delivery groove is provided on the inner wall of the piston top block.

[0014] The beneficial effects of this utility model are:

[0015] In this utility model, two stamping grooves are directly stamped out on the straight center plate. The two stamping grooves are concave on the outside and convex on the inside. The convex end of the inside will push against the torsion spring. In this way, when the hinge is opened to the maximum angle and is close to closing, there will be resistance at the convex point, so that the hinge closes evenly and slowly. The stamping groove can replace the function of the convex block without increasing the manufacturing difficulty and making it convenient for personnel to use.

[0016] In this invention, an additional oil passage groove is added to the piston top block inside the oil cylinder to accelerate oil circulation, thereby increasing the pressure speed and making the oil cylinder move more smoothly. Even heavy doors can slide freely, making it convenient for personnel to use. Attached Figure Description

[0017] Figure 1 This is a partial structural schematic diagram of the present invention viewed from the front.

[0018] Figure 2 This is a partial structural schematic diagram of the present invention viewed from below;

[0019] Figure 3 This is a partial structural diagram of the hinge arm body in the present invention, viewed from above.

[0020] Figure 4 This is a three-dimensional structural diagram of the upper part in this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the base component of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the cylinder sleeve in this utility model, viewed from the right side.

[0023] Figure 7 This is a three-dimensional structural diagram of the hydraulic cylinder sleeve in this utility model, viewed from the left side.

[0024] Figure 8 This is a three-dimensional structural diagram of the hydraulic cylinder in this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the hydraulic cylinder, hydraulic cylinder sleeve, and straight-core screw of this utility model;

[0026] Figure 10 This is a three-dimensional structural diagram of the central part of the present invention from a top view.

[0027] Figure 11 This is a three-dimensional structural diagram of the hinge cup and the four-hole connector in this utility model;

[0028] Figure 12 This is a schematic diagram of the cross-sectional structure of the hydraulic cylinder in this utility model;

[0029] Figure 13 This is a three-dimensional structural diagram of the piston top block in this utility model.

[0030] In the diagram: 100, hinge arm body; 110, upper part; 120, bottom part; 200, cylinder sleeve; 201, mounting groove; 210, cylinder; 211, piston top block; 212, dual-path oil supply groove; 213, cylinder piston; 220, U-shaped sliding guide block; 230, straight center guide; 231, stamping groove; 232, raised abutment block; 300, hinge cup; 310, four-hole connector. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] See attached document Figures 1-13This utility model provides a three-section force double-groove hydraulic cylinder damping hinge, including a hinge arm 100. A top piece 110 is connected to the top of the outer wall of the hinge arm 100, and a bottom piece 120 is connected to the bottom of the inner wall of the hinge arm 100. A hinge cup 300 is provided at one end of the hinge arm 100. The hinge arm 100 and the hinge cup 300 are connected by a transmission component, which includes a hydraulic cylinder sleeve 200. The hydraulic cylinder sleeve 200 is installed on the inner wall side of the hinge arm 100, close to the hinge cup 300. Each side of the outer wall of the hydraulic cylinder sleeve 200 has a mounting groove 201. A hydraulic cylinder 210 is installed on the inner wall of the mounting groove 201. The hydraulic cylinder 210 is designed to buffer the opening and closing of the door / cabinet, preventing rapid opening and closing. The front and rear ends of the outer wall of the hydraulic cylinder sleeve 200, away from the hinge cup 300, are... There is a U-shaped sliding guide block 220. The front and rear ends of the outer wall of the cylinder sleeve 200 and the corresponding positions of the U-shaped sliding guide block 220 are fixed with guide blocks. The front and rear ends of the outer wall of the U-shaped sliding guide block 220 and the corresponding positions of the guide blocks are all provided with guide grooves. The outer wall of the guide blocks is slidably connected to the inner wall of the guide grooves. The outer wall of the cylinder sleeve 200 and the end near the hinge cup 300 is provided with a straight center pin 230. One end of the straight center pin 230 is connected to the inner wall side of the hinge arm 100 through a rotating pin. The straight center pin 230 is provided to transmit the rotation of the hinge cup 300 to the cylinder 210 so that the cylinder 210 can buffer the rotation of the door cabinet. The outer wall of the rotating pin is fitted with a torsion spring for reset. One end of the straight center pin 230 abuts against the side of the cylinder sleeve 200 through a protruding abutment block 232.

[0033] A four-hole connector 310 is hinged to one end of the hinge cup 300 near the hinge arm 100 and below the cylinder sleeve 200. The other end of the four-hole connector 310 is hinged to the corresponding position of the inner wall side of the hinge arm 100. The upper and lower ends of the outer wall of the straight-through hinge 230 have stamped grooves 231 formed by stamping. The stamped grooves 231 are set in a concave-convex manner. The purpose of the stamped grooves 231 is to provide resistance at the convex points when the hinge is open to its maximum angle and is nearing closure, allowing the hinge to close evenly and slowly. (Two stamping processes are mentioned.) The groove 231 replaces the plastic part, and the bottom protrusion of the stamping groove 231 abuts against the outer wall of the torsion spring. The bottom of the cylinder 210 is equipped with a reset spring, and the upper end of the spring is equipped with a cylinder piston 213. A piston top block 211 is provided between the spring and the stamping groove 231. The inner wall of the piston top block 211 is provided with a double oil passage groove 212. The piston top block 211 can accelerate the oil circulation by opening an additional oil passage groove, thereby increasing the pressure speed. The cylinder moves smoothly, and even heavy doors can slide freely.

[0034] The usage process of this utility model is as follows: Those skilled in the art can first assemble the device according to the above description, and then connect the hinge arm 100 and the hinge cup 300 to the door cabinet with bolts. When the person opens and closes the door cabinet, the hinge cup 300 will transmit the opening and closing force to the oil cylinder 210 through the straight center piston 230, so that the oil cylinder piston 213 of the oil cylinder 210 slides inward, so that the spring can contract. In conjunction with the installed torsion spring, it can buffer the force when the door cabinet is closed.

[0035] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A three-stage force dual-groove cylinder damper hinge, characterized in that: It includes a hinge arm body (100), the top of the outer wall of the hinge arm body (100) is connected to a top piece (110), the bottom of the inner wall of the hinge arm body (100) is connected to a bottom piece (120), one end of the hinge arm body (100) is provided with a hinge cup (300), and the hinge arm body (100) and the hinge cup (300) are connected by a transmission component.

2. A three-stage force dual-groove cylinder damper hinge according to claim 1, characterized in that: The transmission component includes a cylinder sleeve (200), which is installed on the inner wall side of the hinge arm (100) and close to the hinge cup (300). The outer wall side of the cylinder sleeve (200) is provided with a mounting groove (201), and a cylinder (210) is installed on the inner wall of the mounting groove (201).

3. A three-stage force dual-slot oil cylinder damping hinge according to claim 2, characterized in that: A U-shaped sliding guide block (220) is provided at the front and rear ends of the outer wall of the cylinder sleeve (200) and at the end away from the hinge cup (300). A guide block is fixed at the front and rear ends of the outer wall of the cylinder sleeve (200) and at the position corresponding to the U-shaped sliding guide block (220).

4. A three-stage force dual-groove cylinder damper hinge according to claim 3, characterized in that: The outer wall of the U-shaped sliding guide block (220) is provided with guide grooves at the front and rear ends and at positions corresponding to the guide block. The outer wall of the guide block is slidably connected to the inner wall of the guide groove.

5. A three-stage force dual-groove cylinder damper hinge according to claim 2, characterized in that: A straight centering pin (230) is provided on the outer wall of the cylinder sleeve (200) near the hinge cup (300). One end of the straight centering pin (230) is connected to the inner wall side of the hinge arm body (100) by a rotating pin. A torsion spring for resetting is sleeved on the outer wall of the rotating pin. One end of the straight centering pin (230) abuts against the side of the cylinder sleeve (200) by opening a protruding abutment block (232).

6. A three-section force double-groove hydraulic cylinder damping hinge according to claim 2, characterized in that: The hinge cup (300) is hinged to a four-hole connector (310) at one end near the hinge arm body (100) and below the cylinder sleeve (200). The other end of the four-hole connector (310) is hinged to the inner wall side of the hinge arm body (100).

7. A three stage force dual slot cylinder damper hinge according to claim 5, wherein: The upper and lower ends of the outer wall of the straight center lip (230) are formed by stamping grooves (231) by stamping, and the stamping grooves (231) are arranged in a concave-convex manner.

8. A three-segment double-groove hydraulic cylinder damping hinge according to claim 2, characterized in that: A reset spring is installed at the bottom of the cylinder (210), and a cylinder piston (213) is provided at the upper end of the spring. A piston top block (211) is provided between the spring and the stamping groove (231), and a double oil delivery groove (212) is provided on the inner wall of the piston top block (211).

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