Hydraulic buffering hinge

By installing an oil injection valve and baffle on the hydraulic buffer hinge, the problems of damping oil loss and sealing are solved, enabling convenient oil injection and venting, extending service life and improving safety.

CN223867828UActive Publication Date: 2026-02-03梁永昌
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Patent Information

Application Number
CN202520186274.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-02-03
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

Existing hydraulic buffer hinges suffer from damping oil loss and decreased sealing performance after prolonged use, resulting in a weakened buffering effect. Furthermore, oil filling and venting are inconvenient, affecting service life and safety.

Method used

An oil injection valve and baffle are installed on the hinge body, allowing users to inject damping oil and vent gas themselves, enhancing the sealing performance. The oil injection valve enables convenient oil injection and venting functions.

Benefits of technology

It maintains the hinge's good cushioning performance, extends its service life, and improves safety and ease of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hardware machining, and provides a hydraulic buffer hinge which comprises a hinge body back face, a hinge body front face and a material installation base, the hinge body front face is embedded in the inner side of the bottom of the hinge body back face, and fixing holes are formed in the two sides of the hinge body front face and the two sides of the hinge body back face. The back face of the hinge body and the front face of the hinge body are connected through a threaded rod, a clamping groove fixing inner barrel and a box body fixing hole are formed in the outer side wall of the material mounting base, and a rotating shaft is inserted into the inner side of the clamping groove fixing inner barrel. The introduction of the oil injection valve solves the inconvenience of the traditional hydraulic buffer hinge in the aspects of oil injection and exhaust. The oil injection valve is arranged on the hinge body, a user can inject damping oil into the hinge according to needs, and therefore the good buffering performance of the hinge is kept. Meanwhile, the oil injection valve can also be used as an exhaust hole, and the oil injection valve is opened when exhaust is needed, so that gas in the hinge main body can be smoothly exhausted.
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Description

Technical Field

[0001] This utility model relates to the field of hardware processing technology, specifically a hydraulic buffer hinge. Background Technology

[0002] In existing technologies, hydraulic soft-close hinges, as an important component connecting the housing and the cover, are widely used in various types of furniture and equipment. While traditional hydraulic soft-close hinges can slow down the closing speed of the cover to some extent, thus avoiding safety hazards such as hand pinching, some problems still need to be solved.

[0003] Specifically, after prolonged use, existing hydraulic damping hinges often experience reduced damping effect or even failure due to damping oil loss and decreased sealing performance. This not only affects the hinge's lifespan but may also pose a threat to user safety. Furthermore, traditional hydraulic damping hinges are inconvenient to maintain in terms of oil filling and venting, making them difficult for users to perform themselves, further limiting their application scope.

[0004] To address the problems raised in the background art, those skilled in the art have proposed a hydraulic buffer hinge. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a hydraulic buffer hinge. By setting an oil injection valve on the hinge body, users can conveniently inject damping oil into the hinge as needed, thereby maintaining its good buffering performance.

[0006] A hydraulic buffer hinge includes a hinge body back side, a hinge body front side, and a material mounting base. The hinge body front side is embedded in the inner side of the bottom of the hinge body back side. Fixing holes are provided on both sides of the hinge body front side and the hinge body back side. The hinge body back side and the hinge body front side are connected by a threaded rod. The outer wall of the material mounting base is provided with a slot fixing inner cylinder and a housing fixing hole. A rotating shaft is inserted into the inner side of the slot fixing inner cylinder, and an adjusting bolt sleeve is sleeved on the outer side of the rotating shaft. The adjusting bolt sleeve is also threaded to the inner wall of the hinge body front side. The outer wall of the adjusting bolt sleeve is provided with multiple threaded holes. A locking hole is also provided on the inner side of the hinge body front side near the adjusting bolt sleeve. Two pull blocks are also provided on the outer wall of the rotating shaft.

[0007] A closure component is disposed on the outer side of the upper protrusion on the back of the hinge body, and the closure component includes a closure gasket, which is installed on the outer side of the upper protrusion on the back of the hinge body.

[0008] The oiling component is located on the upper back of the hinge body near the sealing gasket.

[0009] Preferably, a sealing gasket is provided on the outer wall of the rotating shaft near the adjusting bolt sleeve for sealing the inner front of the hinge body.

[0010] Preferably, the oiling assembly includes an insertion hole, which is installed on the back of the hinge body near the sealing gasket, and the inner wall of the insertion hole is also provided with an elastic pull cord.

[0011] Preferably, the inner sidewall of the back of the hinge body has a cavity that communicates with the cavity inside the insertion hole. A sliding baffle is slidably connected inside the cavity on the inner side of the back of the hinge body, and the outer end of the sliding baffle is fixedly connected to an elastic pull rope.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The introduction of the oil injection valve solves the inconvenience of traditional hydraulic damping hinges in terms of oil injection and venting. By installing an oil injection valve on the hinge body, users can inject damping oil into the hinge as needed, thereby maintaining its good damping performance. At the same time, the oil injection valve can also be used as a vent hole; when venting is required, opening the oil injection valve allows the air inside the hinge body to be smoothly discharged.

[0014] 2. The addition of the baffle plate greatly improves the leakage problem of damping oil and the sealing performance of the hinge. The baffle plate set between the rotating shaft of the hinge body and the inner wall effectively prevents the damping oil from leaking out during rotation, enhances the internal sealing of the hinge, and prevents dust from entering through the vent when not in use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 In this utility model Figure 1 A cross-sectional view of the main body of the hinge;

[0017] Figure 3 This utility model Figure 2 Exploded view of the rotating shaft;

[0018] Figure 4 This utility model Figure 1 A schematic diagram of the exploded structure on the back of the main body of the hinge;

[0019] Figure 5 This utility model Figure 1 A schematic diagram of the structure of the material mounting base.

[0020] In the diagram: 1. Back of hinge body; 2. Front of hinge body; 3. Fixing hole; 4. Material mounting base; 5. Slot fixing inner cylinder; 6. Box fixing hole; 7. Sealing gasket; 8. Rotating shaft; 9. Pull block; 10. Sealing gasket; 11. Insertion hole; 12. Elastic pull rope; 13. Sliding baffle; 14. Adjusting bolt sleeve; 15. Threaded hole. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] As attached Figure 1 To be continued Figure 5 As shown:

[0023] Example 1: According to Figures 1-5 As shown, this utility model provides a hydraulic buffer hinge, including a hinge body back side 1, a hinge body front side 2, and a material mounting base 4. The hinge body front side 2 is embedded in the inner side of the bottom of the hinge body back side 1. Fixing holes 3 are provided on both sides of the hinge body front side 2 and the hinge body back side 1. The hinge body back side 1 and the hinge body front side 2 are connected by a threaded rod. The outer wall of the material mounting base 4 is provided with a slot fixing inner cylinder 5 and a housing fixing hole 6. A rotating shaft 8 is inserted into the inner side of the slot fixing inner cylinder 5, and an adjusting bolt sleeve 14 is sleeved on the outer side of the rotating shaft 8. The adjusting bolt sleeve 14 is also threaded to the inner wall of the hinge body front side 2. The outer wall of the adjusting bolt sleeve 14 is provided with multiple threaded holes 15. A locking hole is also provided on the inner side of the hinge body front side 2 near the adjusting bolt sleeve 14. The outer wall of the rotating shaft 8 is also provided with two pull blocks 9.

[0024] A sealing element is provided on the outer side of the upper protrusion on the back side 1 of the hinge body. The sealing element includes a sealing gasket 10, which is installed on the outer side of the upper protrusion on the back side 1 of the hinge body.

[0025] The oil injection assembly is located on the upper part of the back side 1 of the hinge body, near the sealing gasket 10. A sealing gasket 7 is also provided on the outer wall of the rotating shaft 8 near the adjusting bolt sleeve 14 to seal the inside of the front side 2 of the hinge body. The oil injection assembly includes an insertion hole 11, which is installed on the back side 1 of the hinge body near the sealing gasket 10. An elastic pull rope 12 is also provided on the inner wall of the insertion hole 11. A cavity is formed on the inner wall of the back side 1 of the hinge body, communicating with the cavity inside the insertion hole 11. A sliding baffle 13 is slidably connected within the cavity inside the back side 1 of the hinge body, and the outer end of the sliding baffle 13 is fixedly connected to the elastic pull rope 12. The introduction of the oil injection valve solves the inconvenience of traditional hydraulic buffer hinges in terms of oil injection and venting. By providing an oil injection valve on the hinge body, users can inject damping oil into the hinge as needed, thereby maintaining its good buffering performance. At the same time, the oil injection valve can also be used as a vent. When air needs to be released, the oil injection valve can be opened to allow the air inside the hinge body to be released smoothly.

[0026] By adjusting the position of the adjusting bolt sleeve 14 inside the front side 2 of the hinge body, the load-bearing capacity can be adjusted. The small screw is inserted into the locking hole, and then the outer wall of the adjusting bolt sleeve 14 is pressed to fix the adjusting bolt sleeve 14 and prevent the adjusting bolt sleeve 14 from loosening.

[0027] Working principle: When the hinge is in use, after rotation, air is vented through the rear end of the hinge body 1. The gas will break through the sealing gasket 10, and then the sealing gasket 10 will open to release the gas. The sealing gasket 10 will automatically reset when in use to prevent dust from entering when not in use. After long-term use, the internal damping oil will be lost. Then, the injection head can be inserted into the insertion hole 11, and the insertion hole 11 will push open the sliding baffle 13, allowing the sliding baffle 13 to leak out through the groove at the end of the elastic pull rope 12. The damping oil can be re-injected to replenish it. Then, the injection head is pulled out, and the elastic pull rope 12 will reset the sliding baffle 13.

[0028] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0029] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulically cushioned hinge, characterized in that: The device includes a hinge body back side (1), a hinge body front side (2), and a material mounting base (4). The hinge body front side (2) is embedded in the inner side of the bottom of the hinge body back side (1). Fixing holes (3) are provided on both sides of the hinge body front side (2) and the hinge body back side (1), and the hinge body back side (1) and the hinge body front side (2) are connected by threaded rods. The outer wall of the material mounting base (4) is provided with a slot for fixing the inner cylinder (5) and a box fixing hole (6). A rotating shaft (8) is inserted into the inner side of the slot fixing inner cylinder (5), and an adjusting bolt sleeve (14) is sleeved on the outer side of the rotating shaft (8). The adjusting bolt sleeve (14) is also threaded to the inner wall of the front side (2) of the hinge body. The outer wall of the adjusting bolt sleeve (14) has multiple threaded holes (15). The inner side of the front side (2) of the hinge body is also provided with a locking hole near the adjusting bolt sleeve (14). The outer wall of the rotating shaft (8) is also provided with two pull blocks (9). The closure is provided on the outer side of the upper protrusion on the back (1) of the hinge body. The closure includes a closure gasket (10) which is installed on the outer side of the upper protrusion on the back (1) of the hinge body. The oiling assembly is located on the upper part of the back (1) of the hinge body near the sealing gasket (10).

2. The hydraulic buffer hinge as described in claim 1, characterized in that: A sealing gasket (7) is also provided on the outer wall of the rotating shaft (8) near the adjusting bolt sleeve (14) for sealing the inside of the front side (2) of the hinge body.

3. The hydraulic buffer hinge as described in claim 1, characterized in that: The oiling assembly includes an insertion hole (11), which is installed on the back (1) of the hinge body near the sealing gasket (10). The inner wall of the insertion hole (11) is also provided with an elastic pull rope (12).

4. The hydraulic buffer hinge as described in claim 3, characterized in that: The inner wall of the back side (1) of the hinge body is provided with a cavity, which is connected to the cavity inside the insertion hole (11). A sliding baffle (13) is slidably connected inside the cavity inside the back side (1) of the hinge body. The outer end of the sliding baffle (13) is also fixedly connected to the elastic pull rope (12).