Hovering hinge for slightly opening handrail

Abstract

The utility model relates to the technical field of hovering hinge equipment, in particular to a slightly-open handrail hovering hinge which comprises an upper hinge, a lower hinge, a clamping piece, a short connecting shaft, a long connecting shaft and a torsion spring. An upper connecting part is arranged at one end of the upper hinge, and a lower connecting part is arranged on the side, close to the upper connecting part, of the lower hinge; the clamping piece is located between the upper connecting part and the lower connecting part, the short connecting shaft sequentially penetrates through the lower hinge hole, the clamping hole and the upper hinge hole, a driving part is arranged on the short connecting shaft, the clamping hole and the upper hinge hole are arranged on the driving part of the short connecting shaft in a sleeving mode, the clamping hole is matched with the driving part, and a limiting protruding block is arranged on the inner side wall of the upper hinge hole. The long connecting shaft is arranged on the lower hinge, the long connecting shaft is sleeved with the torsion spring, one end of the torsion spring is embedded in the lower hinge, the other end of the torsion spring is embedded in the clamping piece, the torsion spring pushes the clamping piece to rotate to drive the upper hinge to rotate synchronously, and after the locking part of the upper hinge is unlocked, the torsion spring generates elastic force to push the clamping piece.

Description

Technical Field

[0001] The utility model relates to the technical field of suspension hinge equipment, in particular to a suspension hinge for a slightly open armrest. Background Art

[0002] The slightly open hovering armrest is used to realize the armrest automatically popping up to a certain angle and then having a hovering function. The armrest structure in the existing technology is complex and cannot provide an active opening action before flipping open, so it is difficult for users to separate the armrest from the cover. Therefore, it is necessary to provide a hovering hinge that can actively expand to a certain angle after unlocking to facilitate subsequent users to expand it. Utility Model Content

[0003] In order to solve the above technical problems, the present invention provides a slightly open armrest suspension hinge, the specific technical solution is as follows:

[0004] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0005] In some embodiments, a locking cover is provided on one side of the short connecting shaft, and a screw portion is provided on the other side, and a fastening nut is installed on the screw portion.

[0006] In some embodiments, the fastening nut is provided with two fastening washers, and the fastening washers are sleeved on the screw portion.

[0007] In some embodiments, a limiting block is provided on the lower hinge, and a limiting edge is provided on the positioning member, and the limiting block and the limiting edge fit together.

[0008] In some embodiments, a rubber sleeve is provided on the limiting block.

[0009] In some embodiments, a damping gasket is included, and a plurality of the damping gaskets are provided, and the plurality of damping gaskets are arranged between the upper hinge, the lower hinge and the locking member.

[0010] In some embodiments, two upper connecting parts are symmetrically provided at one end of the upper hinge, and two lower connecting parts are symmetrically provided on the side of the lower hinge close to the upper connecting part, and the upper connecting part on the same side cooperates with the lower connecting part, and two of the retaining parts, short connecting shafts and torsion springs are respectively provided, and the two retaining parts, short connecting shafts and torsion springs are respectively provided on the upper connecting parts and lower connecting parts on both sides.

[0011] In some embodiments, the upper hinge is provided with an arc-shaped mounting arm, and the upper connecting portion is located at the end of the upper connecting portion.

[0012] In some embodiments, a decorative cover is provided on the outer side of the arc-shaped mounting arm.

[0013] In some embodiments, a reinforcement groove is provided on the arc-shaped mounting arm.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] First: This solution fixes the lower hinge, and the upper hinge can rotate along the short connecting shaft at a certain angle. A locking part is provided on the installation part of the upper hinge. When the locking part of the upper hinge is unlocked, the torsion spring generates elastic force to push the locking part, and the locking hole on the locking part drives the short connecting shaft to rotate at a certain angle. At this time, the driving part on the short connecting shaft cooperates with the limiting protrusion on the upper hinge hole to drive the upper hinge to rotate at a certain angle, so that the upper hinge automatically pops open, which is convenient for the user to manually unfold it as a whole. During the unfolding process of the upper hinge, the limiting protrusion does not cooperate with the driving part for transmission, and the short connecting shaft is in a relatively static state.

[0016] Second: A damping gasket is provided in this solution, which is arranged between the upper hinge, the lower hinge and the locking member. The damping gasket can generate a damping force during the expansion of the upper hinge, thereby improving the user's feel when expanding the upper hinge.

[0017] Third: In this solution, two upper connecting parts are symmetrically provided at one end of the upper hinge, and two lower connecting parts are symmetrically provided on the side of the lower hinge close to the upper connecting part. The upper connecting part and the lower connecting part on the same side cooperate with each other, and two of the positioning parts, short connecting shafts and torsion springs are respectively provided. The two positioning parts, short connecting shafts and torsion springs are respectively provided on the upper connecting parts and lower connecting parts on both sides, thereby improving the assembly stability of the upper hinge and the lower hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the overall structure of the application Figure 1 ;

[0019] Figure 2This is the overall structure of the application Figure 2 ;

[0020] Figure 3 It is a schematic diagram of the split structure of this application;

[0021] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 5 This is a schematic diagram of the structure of the lower hinge in this application

[0023] Figure 6 This is the first usage state of the slightly open armrest hover hinge;

[0024] Figure 7 This is the second usage state of the slightly open armrest hover hinge;

[0025] Figure 8 This is the third usage state of the slightly open armrest hover hinge.

[0026] Figure numerals: upper hinge 1, upper connecting part 11, upper hinge hole 111, limiting protrusion 112, arc-shaped mounting arm 12, reinforcement groove 121, lower hinge 2, lower connecting part 21, lower hinge hole 211, limiting block 22, rubber sleeve 221, positioning member 3, positioning hole 31, limiting edge 32, short connecting shaft 4, driving part 41, locking cover 42, screw part 43, fastening nut 44, fastening gasket 45, long connecting shaft 5, torsion spring 6, damping gasket 7. DETAILED DESCRIPTION

[0027] The following embodiments of the present disclosure are further described in detail with reference to the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0028] The present disclosure provides these embodiments in order to make this disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0029] It should be noted that, in the description of this disclosure, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] In addition, the terms "first," "second," and similar terms used in this disclosure do not denote any order, quantity, or importance, but are merely used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the term include the elements listed after the term, and do not exclude the possibility of also including other elements.

[0031] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this disclosure depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0032] All terms used in this disclosure have the same meaning as understood by one of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] like Figures 1 to 8As shown, a slightly open armrest suspension hinge includes an upper hinge 1, a lower hinge 2, a retaining member 3, a short connecting shaft 4, a long connecting shaft 5 and a torsion spring 6. An upper connecting portion 11 is provided at one end of the upper hinge 1, and a lower connecting portion 21 is provided on the side of the lower hinge 2 close to the upper connecting portion 11. The retaining member 3 is located between the upper connecting portion 11 and the lower connecting portion 21. An upper hinge hole 111 is provided on the upper connecting portion 11, and a lower hinge hole 211 is provided on the lower connecting portion 21. A retaining hole 31 is provided on the retaining member 3, and the short connecting shaft 4 passes through the lower hinge hole 211, the retaining hole 31 and the upper hinge hole 111 in sequence. The upper hinge 1, the lower hinge 2 and the retaining member 3 rotate along the short connecting shaft 4, and the short connecting shaft 4 is provided with a driving part 41, the retaining hole 31 and the upper hinge hole 111 are sleeved on the driving part 41 of the short connecting shaft 4, the retaining hole 31 and the driving part 41 fit together, and the inner side wall of the upper hinge hole 111 is provided with a limiting protrusion 112, the long connecting shaft 5 is provided on the lower hinge 2, and the torsion spring 6 is sleeved on the long connecting shaft 5, one end of the torsion spring 6 is embedded in the lower hinge 2, and the other end is embedded in the retaining member 3, and the torsion spring 6 pushes the retaining member 3 to rotate, driving the upper hinge 1 to rotate synchronously.

[0035] like Figures 6 to 8 As shown, the lower hinge 2 is fixedly installed during use, and the upper hinge 1 can rotate along the short connecting shaft 4 at a certain angle. A locking part is provided on the installation part of the upper hinge 1. When the locking part of the upper hinge 1 is unlocked, the torsion spring 6 generates elastic force to push the locking member 3, and the locking hole 31 on the locking member 3 drives the short connecting shaft 4 to rotate at a certain angle. At this time, the driving part 41 on the short connecting shaft 4 cooperates with the limiting protrusion 112 on the upper hinge hole 111 to drive the upper hinge 1 to rotate at a certain angle, so that the upper hinge 1 automatically pops open, so as to facilitate the user to manually unfold it as a whole. During the unfolding process of the upper hinge 1, the limiting protrusion 112 does not cooperate with the driving part 41 for transmission, and the short connecting shaft 4 is in a relatively static state.

[0036] Alternatively, the torsion spring 6 in this solution can rotate the upper hinge 1 at an angle of 5° to 10° after the upper hinge 1 is unlocked, with 8° being preferred.

[0037] In some embodiments, a locking cover 42 is provided on one side of the short connecting shaft 4, and a screw portion 43 is provided on the other side. The screw portion 43 is installed with a fastening nut 44. The short connecting shaft 4 can be fixedly installed by rotating the fastening nut 44 to the screw portion 43, ensuring that the upper hinge 1, the lower hinge 2 and the locking member 3 can be stably embedded in the short connecting shaft 4.

[0038] On this basis, two fastening washers 45 are provided at the fastening nut 44, and the fastening washers 45 are sleeved on the screw portion 43. The fastening washers 45 can improve the stability of the fastening nut 44 after installation, thereby preventing the fastening nut 44 from falling off.

[0039] In some embodiments, a limiting block 22 is provided on the lower hinge 2, and a limiting edge 32 is provided on the locking member 3. The limiting block 22 and the limiting edge 32 fit together, thereby enabling the locking member 3 to be limited, ensuring that the locking member 3 is locked after rotating to a certain angle, thereby improving the installation stability of the equipment.

[0040] On this basis, a rubber sleeve 221 is provided on the limit block 22, so as to reduce the matching wear between the positioning member 3 and the lower hinge 2, thereby increasing the service life of the device.

[0041] In some embodiments, a damping gasket 7 is included, and several damping gaskets 7 are provided. Several damping gaskets 7 are arranged between the upper hinge 1, the lower hinge 2 and the retaining member 3. The damping gasket 7 can generate a damping force during the unfolding of the upper hinge 1, thereby improving the user's feel when unfolding the upper hinge 1. The damping gasket 7 in this solution can be set to 2 to 3, preferably three, one of which is arranged between the retaining member 3 and the lower hinge 2, one is arranged between the upper hinge 1 and the retaining member 3, and one is arranged between the upper hinge 1 and the fastening nut 44.

[0042] On this basis, the elastic force of the torsion spring 6 in this solution is greater than the damping force generated by the plurality of damping washers 7, thereby ensuring that the torsion spring 6 can push the upper hinge 1 to flip after the upper hinge 1 is unlocked.

[0043] In some embodiments, two upper connecting parts 11 are symmetrically provided at one end of the upper hinge 1, and two lower connecting parts 21 are symmetrically provided on the side of the lower hinge 2 close to the upper connecting part 11. The upper connecting part 11 on the same side cooperates with the lower connecting part 21, and two of the retaining parts 3, the short connecting shaft 4 and the torsion spring 6 are respectively provided. The two retaining parts 3, the short connecting shaft 4 and the torsion spring 6 are respectively provided on the upper connecting part 11 and the lower connecting part 21 on both sides, so as to improve the assembly stability of the upper hinge 1 and the lower hinge 2.

[0044] In some embodiments, an arc-shaped mounting arm 12 is provided on the upper hinge 1, and the upper connecting portion 11 is at the end of the upper connecting portion 11, wherein the center of the arc-shaped mounting arm 12 is on the same straight line as the axis of the short connecting shaft 4, thereby improving the stability of the upper hinge 1 when flipping.

[0045] In some embodiments, a decorative cover is provided on the outer side of the arc-shaped mounting arm 12 to improve the appearance of the upper hinge 1 when unfolded and to prevent it from being worn during the flipping process.

[0046] In some embodiments, a reinforcement groove 121 is provided on the arc-shaped mounting arm 12 to increase the structural strength of the arc-shaped mounting arm 12 .

[0047] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the claims of the present invention.

Claims

1. A slightly open armrest suspension hinge, characterized in that: The invention comprises an upper hinge (1), a lower hinge (2), a retaining member (3), a short connecting shaft (4), a long connecting shaft (5) and a torsion spring (6); an upper connecting portion (11) is provided at one end of the upper hinge (1); a lower connecting portion (21) is provided on a side of the lower hinge (2) close to the upper connecting portion (11); the retaining member (3) is located between the upper connecting portion (11) and the lower connecting portion (21); an upper hinge hole (111) is provided on the upper connecting portion (111); a lower hinge hole (211) is provided on the lower connecting portion (211); a retaining hole (31) is provided on the retaining member (3); and the short connecting shaft (4) passes through the lower hinge hole (211), the retaining hole (31) and the retaining hole (31) in sequence. and an upper hinge hole (111), a driving portion (41) is provided on the short connecting shaft (4), the positioning hole (31) and the upper hinge hole (111) are sleeved on the driving portion (41) of the short connecting shaft (4), the positioning hole (31) and the driving portion (41) are fitted with each other, a limiting protrusion (112) is provided on the inner side wall of the upper hinge hole (111), the long connecting shaft (5) is provided on the lower hinge (2), the torsion spring (6) is sleeved on the long connecting shaft (5), one end of the torsion spring (6) is embedded in the lower hinge (2), and the other end is embedded in the positioning piece (3), the torsion spring (6) pushes the positioning piece (3) to rotate and drives the upper hinge (1) to rotate synchronously.

2. The slightly open armrest suspension hinge according to claim 1, characterized in that: A locking cover (42) is provided on one side of the short connecting shaft (4), and a screw portion (43) is provided on the other side. A fastening nut (44) is installed on the screw portion (43).

3. The slightly open armrest suspension hinge according to claim 2, characterized in that: The fastening nut (44) is provided with two fastening washers (45), and the fastening washers (45) are sleeved on the screw portion (43).

4. The slightly open armrest suspension hinge according to claim 1, characterized in that: A limiting clamping block (22) is provided on the lower hinge (2), and a limiting clamping edge (32) is provided on the clamping member (3); the limiting clamping block (22) and the limiting clamping edge (32) are fitted with each other.

5. The slightly open armrest suspension hinge according to claim 4, characterized in that: The position-limiting block (22) is sleeved with a rubber sleeve (221).

6. The slightly open armrest suspension hinge according to claim 1, characterized in that: It comprises a damping gasket (7), wherein a plurality of the damping gaskets (7) are provided, and the plurality of damping gaskets (7) are arranged between the upper hinge (1), the lower hinge (2) and the blocking member (3).

7. The slightly open armrest suspension hinge according to claim 1, characterized in that: Two upper connecting parts (11) are symmetrically provided at one end of the upper hinge (1); two lower connecting parts (21) are symmetrically provided on one side of the lower hinge (2) close to the upper connecting part (11); the upper connecting part (11) and the lower connecting part (21) on the same side cooperate with each other; two of the positioning members (3), the short connecting shaft (4) and the torsion spring (6) are provided respectively; the two positioning members (3), the short connecting shaft (4) and the torsion spring (6) are respectively provided on the upper connecting part (11) and the lower connecting part (21) on both sides.

8. The slightly open armrest suspension hinge according to claim 1, characterized in that: An arc-shaped mounting arm (12) is provided on the upper hinge (1), and the upper connecting portion (11) is located at the end of the upper connecting portion (11).

9. The slightly open armrest suspension hinge according to claim 8, characterized in that: The outer side of the arc-shaped mounting arm (12) is provided with a decorative cover.

10. The slightly open armrest suspension hinge according to claim 8, characterized in that: A reinforcement groove (121) is provided on the arc-shaped mounting arm (12).

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