Damping hinge assembly

Abstract

The utility model discloses a damping hinge assembly which comprises a hinge lower seat, a first mounting part is integrally formed on the outer side of the hinge lower seat, and a mounting cavity is downwards formed in the hinge lower seat along the upper end of the hinge lower seat; the damper module comprises a central spindle which is inserted into the mounting cavity and can rotate and two oil seals which are mounted on the outer side of the central spindle, the two oil seals divide the mounting cavity into two damping cavities, and damping grease is injected into the two damping cavities; the locking piece is mounted on the hinge lower seat and limits the damper module in the mounting cavity of the hinge lower seat, and the upper end of the mandrel penetrates through the locking piece and extends out of the upper end of the hinge lower seat; the hinge upper seat is arranged at the upper end of the core shaft in a sleeving manner through a positioning hole of the hinge upper seat and is locked through a screw; and the second mounting part and the first mounting part outside the hinge upper seat are distributed outside the two sides of the core shaft. The utility model has the advantages of simple structure, fewer parts, convenience in installation and low cost.

Description

Technical fields:

[0001] This utility model relates to the technical field of damping hinge products, and specifically refers to a damping hinge assembly with a simpler structure, fewer parts, and lower cost. Background technology:

[0002] A damping hinge is a type of hinge that utilizes the cushioning properties of liquids or springs to achieve damping. This type of damping hinge has an ideal cushioning effect, allowing parts such as top covers to close slowly and automatically starting at 60°, reducing impact force and creating a comfortable damping hinge effect when closing.

[0003] Chinese utility model patent No. 201921280022.2 discloses a damping hinge, which includes a first hinge blade and a second hinge blade. The first hinge blade has a first connecting portion in its middle. The second hinge blade has a second connecting portion and a third connecting portion at its two ends, respectively. A torsion spring is installed inside the first connecting portion. An adjusting rotating shaft is provided inside the second connecting portion, with one end of the adjusting rotating shaft engaging with one end of the torsion spring. A fixed rotating shaft is fitted inside the third connecting portion, with one end engaging with the other end of the torsion spring. The other end of the fixed rotating shaft is inserted and fixed to the end of a damping cylinder core, which is installed in a damping cylinder shell within the third connecting portion. This damping hinge can position the opening angle of the hinge. When the hinge closes, the torsion spring causes the hinge to close automatically, while the damping cylinder core and damping cylinder shell simultaneously generate a damping effect, causing the hinge to close slowly and conveniently.

[0004] The aforementioned damping hinge is also a type of damping hinge, which solves the problem that conventional hinges do not have a damping effect and are prone to impact. However, the aforementioned damping hinge has new technical problems: complex structure, a large number of parts, and relatively cumbersome installation, especially the installation of torsion springs.

[0005] In view of the above, the inventors propose the following technical solution. Utility Model Content:

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a damping hinge assembly.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The damping hinge assembly includes: a lower hinge seat, which has a first mounting portion integrally formed on its outer side, and the lower hinge seat has a mounting cavity opened downward along its upper end; a damper module, which includes a spindle inserted into the mounting cavity and rotatable, and two oil seals mounted on the outer side of the spindle, the two oil seals dividing the mounting cavity into two damping cavities, both of which are filled with damping grease; a locking member, which is mounted on the lower hinge seat and confines the damper module within the mounting cavity of the lower hinge seat, and the upper end of the spindle passes through the locking member and extends out of the upper end of the lower hinge seat; a upper hinge seat, which is sleeved on the upper end of the spindle through its own positioning hole and locked by screws; the second mounting portion and the first mounting portion of the upper hinge seat are distributed on both sides of the spindle.

[0008] Furthermore, in the above technical solution, the upper end of the spindle is provided with threaded holes that are laterally distributed and adapted to the screw; the upper hinge seat is provided with through holes that are laterally distributed and communicate with the threaded holes, and the screw passes through the through holes and is screwed and fixed to the threaded holes.

[0009] Furthermore, in the above technical solution, the first mounting part is provided with a plurality of first mounting holes, and a rearwardly extending first positioning ring is formed on the rear side of the first mounting hole; the second mounting part is provided with a plurality of second mounting holes, and a rearwardly extending second positioning ring is formed on the rear side of the second mounting hole.

[0010] Furthermore, in the above technical solution, the upper end of the mandrel is provided with notched grooves on both sides, making the upper end of the mandrel have a flat structure; the positioning hole is a flat hole that passes through the upper and lower end faces of the hinge seat.

[0011] Furthermore, in the above technical solution, the inner wall of the mounting cavity is provided with two spaced-apart baffles for limiting the rotation stroke of the two oil seals or for limiting the rotation angle of the spindle, and the inner side of each baffle forms a gap with the outer wall of the spindle.

[0012] Furthermore, in the above technical solution, the inner wall of the upper opening of the mounting cavity in the lower hinge seat is provided with an internal thread, the locking member is annular and has a central hole for the mandrel to pass through, the locking member is provided with an external thread, the locking member is screwed and fixed by the external thread and the internal thread, and the locking member is completely submerged in the upper opening of the lower hinge seat; the upper end of the locking member is provided with a first tool groove and a second tool groove corresponding to and connected to the central hole.

[0013] Furthermore, in the above technical solution, the outer periphery of the middle part of the mandrel is provided with an outwardly protruding step, the upper part of the mandrel is fitted with a gasket and abuts against the step, and the lower end of the locking member abuts against the upper surface of the gasket.

[0014] Furthermore, in the above technical solution, a first annular groove is provided on the lower periphery of the locking member, and a second sealing ring is provided in the first annular groove, which makes sealing contact with the inner wall of the mounting cavity; the mandrel is also fitted with a first sealing ring.

[0015] Furthermore, in the above technical solution, the lower end of the mandrel is formed with a smaller shaft body, and an oil reservoir is provided on the outer surface of the shaft body; a shaft groove is provided at the bottom of the mounting cavity, the shaft body is pressed into the shaft groove, and an oil storage space is formed between the oil reservoir and the shaft groove, and the oil storage space is also filled with damping grease.

[0016] Furthermore, in the above technical solution, the outer side of the mandrel is provided with two mounting ribs that are respectively matched with the two oil seals. The mounting ribs are provided with multiple limiting protrusions. The oil seal has a receiving groove, and one side of the oil seal is provided with multiple limiting grooves that pass through the receiving groove. The oil seal is sleeved on the mounting rib through the receiving groove and is held and positioned by the limiting protrusions and the limiting grooves.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The damping hinge assembly of the present invention consists of only four parts: a lower hinge seat, an upper hinge seat, a damper module, and a locking component. Its structure is simple, with few parts, and it eliminates the need for a torsion spring, making assembly more convenient and enhancing market competitiveness. Furthermore, the damper module provides damping for the rotation of the lower and upper hinge seats, solving the problem of conventional hinges lacking damping and prone to impact, resulting in safer use and a better user experience. Moreover, the present invention eliminates the outer shell of the damper, using a damper module without an outer shell, and replacing the outer shell with the lower hinge seat. That is, the lower hinge seat serves as the outer shell to form a damper structure with the damper module. This reduces the mold manufacturing cost associated with using an outer shell and also reduces space occupation, allowing the lower hinge seat to be made smaller. This achieves miniaturization and compactness of the structure, further reducing space and cost, and enabling its application in many structures requiring limited space. Furthermore, this invention replaces the rotating shaft with the core shaft of the damper module to form an independent damped hinge structure. During installation, it is only necessary to attach the first mounting part of the lower hinge seat to the shell and install it in place, and attach the second mounting part of the upper hinge seat to the top cover and install it in place. The installation is simple and does not require the separate installation of a small damper in an invisible or difficult-to-see space. Attached image description:

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a perspective view of the present invention from another angle;

[0020] Figure 3This is an exploded view of this utility model;

[0021] Figure 4 This is a perspective view of the hinge base in this utility model;

[0022] Figure 5 This is an assembly drawing of the damper module in this utility model;

[0023] Figure 6 This is a perspective view of the locking component in this utility model. Detailed implementation method:

[0024] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0025] See Figure 1-6 As shown, a damping hinge assembly includes: a lower hinge seat 1, a damper module 3, a locking element 2, and an upper hinge seat 4.

[0026] The damper module 2 is a damper without a housing, installed in the lower hinge seat 1, which serves as the housing to form a damper structure with the damper module 2. The locking member 2 is installed on the upper end of the lower hinge seat 1 to confine the damper module 2 within it. The upper end of the damper module 2 passes through the locking member 2 and extends beyond the upper end of the lower hinge seat 1 for connection with the upper hinge seat 4. The upper hinge seat 4 is installed on the upper end of the damper module 2 and forms a rotatable connection with the lower hinge seat 1 through the damper module 2.

[0027] Specifically, the lower hinge seat 1 and the upper hinge seat 4 are generally made of metal (such as stainless steel, zinc alloy, etc.). In this embodiment, the lower hinge seat 1 is in the shape of an inverted L, and the upper hinge seat 4 is in the shape of an inverted T.

[0028] The lower hinge seat 1 has a first mounting part 11 integrally formed on its outer side. Correspondingly, the upper hinge seat 4 has a second mounting part 42 on its outer side. The lower hinge seat 1 is mounted on the housing, and the upper hinge seat 4 is mounted on the upper cover. The upper cover is hinged to the housing by the present invention and has a damping function. When the upper cover falls after being opened relative to the housing, the present invention can increase the damping so that the upper cover falls slowly.

[0029] The lower hinge seat 1 has a mounting cavity 12 extending downward from its upper end; the damper module 3 includes a spindle 31 inserted into the mounting cavity 12 and rotatable, and two oil seals 32 mounted on the outside of the spindle 31. The two oil seals 32 divide the mounting cavity 12 into two damping cavities, both of which are filled with damping grease; the locking member 2 is mounted on the lower hinge seat 1 and confines the damper module 3 within the mounting cavity 12 of the lower hinge seat 1, and the upper end of the spindle 31 passes through the locking member 2 and extends out of the upper end of the lower hinge seat 1; the upper hinge seat 4 is fitted onto the upper end of the spindle 31 through its own positioning hole 41 and locked by screws 5; the second mounting part 42 and the first mounting part 11 on the outside of the upper hinge seat 4 are distributed on both sides of the spindle 31. In other words, the damping hinge assembly of this utility model consists of only four parts: the lower hinge seat 1, the upper hinge seat 4, the damper module 3, and the locking element 2. Its structure is simple, with few parts, and it eliminates the need for a torsion spring, making assembly easier and enhancing its market competitiveness. Furthermore, the damper module 3 provides damping for the rotation of the lower hinge seat 1 and the upper hinge seat 4, solving the problem of conventional hinges lacking damping and prone to impacts, resulting in safer use and a better user experience. Moreover, this utility model eliminates the outer shell of the damper, using a damper module 2 without an outer shell, and replacing the outer shell with the lower hinge seat 1. That is, the lower hinge seat 1 serves as the outer shell to form a damper structure with the damper module 2. This reduces the mold manufacturing cost associated with using an outer shell and also reduces space requirements, allowing the lower hinge seat 1 to be made smaller. This achieves miniaturization and compactness of the structure, further reducing space and cost, and making it applicable to structures requiring limited space. Furthermore, this utility model replaces the rotating shaft with the core shaft of the damper module to form an independent damped hinge structure. During installation, it is only necessary to attach the first mounting part 11 of the lower hinge seat 1 to the shell and install it in place, and attach the second mounting part 42 of the upper hinge seat 4 to the top cover and install it in place. The installation is simple and does not require the separate installation of the small damper in an invisible or difficult-to-see space.

[0030] During operation, when the top cover falls relative to the housing after it has been opened, this invention can improve damping, thereby causing the top cover to fall slowly. Specifically, when the top cover drives the spindle of the damper module to rotate, the rotation of the spindle will cause the oil seal 32 on its outer side to rotate. When the oil seal 32 rotates, it will squeeze and push the damping grease, resulting in resistance from the damping grease, thereby reducing the rotational speed of the spindle and achieving the purpose of damping, so that the top cover falls slowly relative to the housing. In addition, there is a gap between the oil seal 32 and the inner cavity 12 of the housing 1. During rotation, the damping grease can flow slowly through these gaps without jamming the spindle 31 connected to the oil seal 32, thus achieving slow rotation.

[0031] The first mounting portion 11 is provided with a plurality of first mounting holes 111, and a rearwardly extending first positioning ring 112 is formed on the rear side of each first mounting hole 111; the second mounting portion 42 is provided with a plurality of second mounting holes 421, and a rearwardly extending second positioning ring 422 is formed on the rear side of each second mounting hole 421. During installation, when the first mounting portion 11 is fitted against the housing, the first positioning ring 112 is embedded in the first positioning groove at the first screw hole port on the housing to achieve positioning of the first mounting portion 11 and the housing. After the first screw passes through the first mounting holes 111 and the first positioning ring 112, it is screwed and fixed to the first screw hole on the housing, thereby fixing the first mounting portion 11 to the housing. When the second mounting part 42 is attached to the top cover, the second positioning ring 422 is embedded in the second positioning groove at the second screw hole port on the top cover to achieve positioning of the second mounting part 42 and the top cover. After the second screw passes through the second mounting hole 421 and the second positioning ring 422, it is screwed and fixed to the second screw hole on the top cover, thereby fixing the second mounting part 42 to the top cover.

[0032] Both sides of the upper end of the mandrel 31 are provided with notched grooves 312, making the upper end of the mandrel 31 have a flat structure. The positioning hole 41 is a flat hole that passes through the upper and lower end faces of the hinge upper seat 4, so that after the hinge upper seat 4 is assembled with the upper end of the mandrel 31, the flat structure of the upper end of the mandrel 31 and the positioning hole 41 form a stable positioning, ensuring the stability of the assembly structure. In addition, the upper end of the mandrel 31 is provided with threaded holes 311 that are laterally distributed and adapted to the screws 5; the hinge upper seat 4 is provided with through holes 43 that are laterally distributed and communicate with the threaded holes 311. The screws 5 pass through the through holes 43 and are screwed into the threaded holes 311, thereby ensuring that the hinge upper seat 4 is fixed to the upper end of the mandrel 31, so that the hinge upper seat 4 and the hinge lower seat 1 form a stable and reliable rotatable assembly structure.

[0033] To prevent excessive rotation of the mandrel 31 and improve the damping effect, the following design is implemented: Two spaced-apart baffles 121 are provided on the inner wall of the mounting cavity 12 to limit the rotational stroke of the two oil seals 32 or to limit the rotational angle of the mandrel 31. A gap is formed between the inner surface of each baffle 121 and the outer wall of the mandrel 31. When the mandrel rotates, it drives the outer oil seal 32 to rotate. The oil seal 32, during rotation, squeezes and pushes the damping grease, which is blocked by the baffles 121, thus improving the damping effect and better reducing the rotational speed of the mandrel. The damping grease also passes over the baffles 121 and enters the other side of the baffles 121, ensuring that the maximum rotational angle of the mandrel is when the oil seal 32 contacts the baffle 121. When the mandrel rotates in the opposite direction, the damping grease also passes over the baffles 121 and enters one side of the baffles 121.

[0034] The upper opening of the mounting cavity 12 in the lower hinge seat 1 has an internal thread 122. The locking member 2 is annular and has a central hole 21 through which the spindle 31 passes. The locking member 2 has an external thread 22. The locking member 2 is screwed to the internal thread 122 by the external thread 22. Its assembly structure is simple and the connection is stable, making this utility model a product of higher quality. Moreover, the locking member 2 is completely submerged in the upper opening of the lower hinge seat 1 and will not affect the use of other structures.

[0035] The upper end of the locking member 2 is provided with a first tool groove 23 and a second tool groove 24 corresponding to and connected to the center hole 21. The first tool groove 23 and the second tool groove 24 can communicate with the center hole 21. In actual use, the operator can use a tool to pass over the upper end of the spindle 31 to simultaneously insert into the first tool groove 23 and the second tool groove 24, and rotate the tool to drive the locking member 2 to rotate, thereby facilitating the installation and removal of the locking member 2.

[0036] The mandrel 31 has an outwardly protruding step 313 on its outer periphery. A gasket 33 is fitted on the upper part of the mandrel 31 and abuts against the step 313. The lower end of the locking member 2 abuts against the upper surface of the gasket 33, so that the locking member 2 and the mandrel 31 are separated by a gasket 33. The gasket 33 serves to prevent rotation, so that the mandrel 31 will not be moved when the locking member 2 is installed or removed.

[0037] The lower periphery of the locking member 2 is provided with a first annular groove 25, and a second sealing ring 26 is provided in the first annular groove 25. The second sealing ring 26 is in sealing contact with the inner wall of the mounting cavity 12; the spindle 31 is also fitted with a first sealing ring 310.

[0038] The lower end of the mandrel 31 is formed with a smaller shaft body 314, and the outer surface of the shaft body 314 is provided with an oil reservoir 315. The bottom of the mounting cavity 12 is provided with a shaft groove 123, and the shaft body 314 is pressed into the shaft groove 123. This allows the lower end of the mandrel 31 and the bottom of the mounting cavity 12 to form a rotatable assembly structure. An oil reservoir space is formed between the oil reservoir 315 and the shaft groove 123. The oil reservoir space is also filled with damping grease, which also acts as a lubricant. This can improve the smoothness of the rotation of the mandrel 31, avoid wear, and reduce or eliminate friction noise.

[0039] The outer side of the mandrel 31 is provided with two mounting ribs 316, which are respectively assembled with two oil seals 32. The mounting ribs 316 are provided with multiple limiting protrusions 317. The oil seal 32 has a receiving groove 321, and a plurality of limiting grooves 322 that pass through the receiving groove 321 are provided on one side of the oil seal 32. The oil seal 32 is sleeved on the mounting ribs 316 through the receiving groove 321, and is held and positioned by the limiting protrusions 317 and the limiting grooves 322. Its assembly structure is simple, easy to install, and easy to disassemble.

[0040] In summary, the damping hinge assembly of this utility model consists of only four parts: the lower hinge seat 1, the upper hinge seat 4, the damper module 3, and the locking element 2. Its structure is simple, with few parts, and it eliminates the need for a torsion spring, making assembly easier and enhancing its market competitiveness. Furthermore, the damper module 3 provides damping for the rotation of the lower hinge seat 1 and the upper hinge seat 4, solving the problem of conventional hinges lacking damping and prone to impacts, resulting in safer use and a better user experience. Moreover, this utility model eliminates the outer shell of the damper, using a damper module 2 without an outer shell, and replacing the outer shell with the lower hinge seat 1. That is, the lower hinge seat 1 serves as the outer shell to form a damper structure with the damper module 2. This reduces the mold manufacturing cost associated with using an outer shell and also reduces space requirements, allowing the lower hinge seat 1 to be made smaller. This achieves miniaturization and compactness of the structure, further reducing space and cost, and making it applicable to structures requiring limited space. Furthermore, this utility model replaces the rotating shaft with the core shaft of the damper module to form an independent damped hinge structure. During installation, it is only necessary to attach the first mounting part 11 of the lower hinge seat 1 to the shell and install it in place, and attach the second mounting part 42 of the upper hinge seat 4 to the top cover and install it in place. The installation is simple and does not require the separate installation of the small damper in an invisible or difficult-to-see space.

[0041] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A damping hinge assembly, characterized in that: include: The hinge base (1) has a first mounting part (11) integrally formed on its outer side, and the hinge base (1) has a mounting cavity (12) opened downward along its upper end; The damper module (3) includes a spindle (31) inserted into the mounting cavity (12) and rotatable, and two oil seals (32) mounted on the outside of the spindle (31). The two oil seals (32) divide the mounting cavity (12) to form two damping cavities, and both damping cavities are filled with damping grease. A locking element (2) is mounted on the hinge base (1) and defines the damper module (3) within the mounting cavity (12) of the hinge base (1), and the upper end of the spindle (31) passes through the locking element (2) and extends out of the upper end of the hinge base (1); The hinge upper seat (4) is fitted onto the upper end of the spindle (31) through its own positioning hole (41) and locked by screws (5); the second mounting part (42) and the first mounting part (11) on the outside of the hinge upper seat (4) are distributed on both sides of the spindle (31).

2. The damping hinge assembly according to claim 1, characterized in that: The upper end of the spindle (31) is provided with threaded holes (311) that are laterally distributed and adapted to the screw (5); the upper hinge seat (4) is provided with through holes (43) that are laterally distributed and communicate with the threaded holes (311), and the screw (5) is screwed and fixed to the threaded holes (311) after passing through the through holes (43).

3. The damping hinge assembly according to claim 1, characterized in that: The first mounting part (11) is provided with a plurality of first mounting holes (111), and a rearwardly extending first positioning ring (112) is formed on the rear side of the first mounting hole (111); the second mounting part (42) is provided with a plurality of second mounting holes (421), and a rearwardly extending second positioning ring (422) is formed on the rear side of the second mounting hole (421).

4. A damping hinge assembly according to claim 1, characterized in that: The upper end of the mandrel (31) is provided with notches (312) on both sides, so that the upper end of the mandrel (31) has a flat structure; the positioning hole (41) is a flat hole that passes through the upper and lower end faces of the hinge seat (4).

5. A damping hinge assembly according to claim 1, characterized in that: The inner wall of the mounting cavity (12) is provided with two spaced-apart stop posts (121) for limiting the rotation stroke of the two oil seals (32) or for limiting the rotation angle of the spindle (31), and the inner side of each stop post (121) forms a gap with the outer wall of the spindle (31).

6. A damping hinge assembly according to any one of claims 1-5, characterized in that: The upper opening of the mounting cavity (12) in the lower hinge seat (1) is provided with an internal thread (122). The locking member (2) is annular and has a central hole (21) through which the mandrel (31) passes. The locking member (2) is provided with an external thread (22). The locking member (2) is screwed to the internal thread (122) by the external thread (22) and the locking member (2) is completely submerged in the upper opening of the lower hinge seat (1). The upper end of the locking member (2) is provided with a first tool groove (23) and a second tool groove (24) that correspond to and connect to the central hole (21).

7. A damping hinge assembly according to claim 6, characterized in that: The mandrel (31) has an outwardly protruding step (313) on its outer periphery. A gasket (33) is fitted on the upper part of the mandrel (31) and abuts against the step (313). The lower end of the locking member (2) abuts against the upper surface of the gasket (33).

8. A damping hinge assembly according to claim 6, characterized in that: The locking member (2) has a first annular groove (25) on its lower periphery, and a second sealing ring (26) is provided in the first annular groove (25). The second sealing ring (26) is in sealing contact with the inner wall of the mounting cavity (12). The spindle (31) is also fitted with a first sealing ring (310).

9. A damping hinge assembly according to claim 6, characterized in that: The lower end of the mandrel (31) is formed with a smaller shaft body (314), and an oil reservoir (315) is provided on the outer surface of the shaft body (314); a shaft groove (123) is provided at the bottom of the mounting cavity (12), the shaft body (314) is pressed into the shaft groove (123), and an oil storage space is formed between the oil reservoir (315) and the shaft groove (123), and the oil storage space is also filled with damping grease.

10. A damping hinge assembly according to claim 9, characterized in that: The outer side of the mandrel (31) is provided with two mounting ribs (316) that are respectively assembled with two oil seals (32). The mounting ribs (316) are provided with multiple limiting protrusions (317). The oil seal (32) has a receiving groove (321), and a plurality of limiting grooves (322) that pass through the receiving groove (321) are provided on one side of the oil seal (32). The oil seal (32) is sleeved on the mounting ribs (316) through the receiving groove (321) and is held and positioned by the limiting protrusions (317) and the limiting grooves (322).

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