An adjustable force slow drop cover hinge and a record player using the same

Abstract

The application discloses a slow-falling flip cover hinge with adjustable force and a record player adopting the hinge. The hinge comprises a first door hinge base and a second door hinge base. The hinge is characterized in that a mounting hole is arranged on the first door hinge base, a hinge wheel is arranged in the mounting hole, a plurality of horn grooves are arranged on the outer side of the hinge wheel in a circumferential direction, the two ends of each horn groove are respectively a large-end end and a small-end end, the groove height H of the large-end end is greater than the groove height H of the small-end end, the groove height gradually decreases from the large-end end to the small-end end, a micro roller is arranged in each horn groove, a clamping pad capable of driving the hinge wheel to rotate is arranged on each side of the hinge wheel, a threaded cover is arranged on the right side of the first door hinge base, and a screw is arranged on the threaded cover. The slow-falling is realized by the clutching principle of the four micro rollers in the horn grooves and the damping friction characteristics of the nylon clamping pads on the two sides. The slow-falling is also applicable to the flip cover with great weight.

Description

Technical Field

[0001] This invention relates to an adjustable-force, slow-closing flip hinge and a record player using the hinge. Background Technology

[0002] Existing flip hinges either have too little friction, causing the flip to slam down quickly and easily, leading to damage, or too much friction, like laptop hinges, which require you to hold down the bottom half of the laptop to open the top half. When opening the top half, it doesn't automatically close, requiring you to keep your hand pressed down, making it inconvenient. While toilet seats can have a soft-close mechanism, they use a gripping principle between a shaft and a hole, similar to a brake. Therefore, toilet seats cannot be too heavy, otherwise, they cannot achieve a soft-close mechanism.

[0003] The information disclosed in the background section is only for enhancing the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adjustable force soft-close flip hinge and a record player using the hinge. The friction of the hinge is adjustable, which can withstand heavier flips and achieve soft closing.

[0005] This invention is achieved through the following technical solution:

[0006] An adjustable-force, slow-closing flip hinge includes a first hinge base 1 and a second hinge base 2 hinged to the first hinge base 1. The first hinge base 1 has a circular mounting hole 101 at its upper part. A hinge wheel 3 is installed within the mounting hole 101. The outer wall of the hinge wheel 3 is not flush with the inner wall of the mounting hole 101. Several horn-shaped grooves 301 are circumferentially arranged on the outer side of the hinge wheel 3. The two ends of each horn-shaped groove 301 are a large end and a small end, respectively. The groove height H1 of the large end is greater than the groove height H2 of the small end. The groove height gradually decreases from the large end to the small end. A miniature roller 4 is installed in the horn groove 301. The diameter of the miniature roller 4 is between the groove height H1 and the groove height H2. The axis of the miniature roller 4 is parallel to the axis of the hinge wheel 3. On both sides of the hinge wheel 3, there are pads 5 that can drive the hinge wheel 3 to rotate. The outer wall of the pads 5 is not in contact with the inner wall of the mounting hole 101. A threaded cover 6 is provided on the right side of the first door hinge seat 1. A screw 7 is provided on the threaded cover 6 to be tightened with the second door hinge seat 2 to press the hinge wheel 3 and the pads 5.

[0007] The adjustable force slow-closing flip hinge described above is characterized in that: a mounting groove 8 is provided at the large end of the horn groove 301, and a rubber particle 9 is placed in the mounting groove 8.

[0008] The adjustable force slow-closing flip hinge described above is characterized in that: two pads 5 are symmetrically arranged on the left and right sides of the hinge wheel 3, the pads 5 are made of nylon, a connecting hole 302 is provided at the center of the hinge wheel 3, and a protrusion 501 that cooperates with the connecting hole 302 is provided on the side of the pads 5 near the connecting hole 302.

[0009] The adjustable force slow-closing flip hinge described above is characterized in that: a stud portion 202 is provided on the second door hinge seat 2, passing through the hinge wheel 3 and the retaining pad 5, the screw 7 is tightened on the stud portion 202, the end of the stud portion 202 is provided as a square step 15, and a square countersunk hole 603 is provided on the threaded cover 6 that is coaxially and tightly fitted with the square step 15.

[0010] The adjustable-force slow-closing flip hinge described above is characterized in that: the micro roller 4 is cylindrical in shape and made of hard metal.

[0011] The adjustable force slow-closing flip hinge described above is characterized in that: a round hole 601 is provided on the threaded cover 6, a butterfly spring washer 10 is provided in the round hole 601, and the screw 7 is tightened on the butterfly spring washer 10.

[0012] The adjustable force slow-closing flip hinge described above is characterized in that: a limiting arc 103 is provided on one side of the mounting hole 101, and a limiting block 201 that can abut against the limiting arc 103 is provided at the bottom of the second door hinge seat 2.

[0013] The adjustable force slow-closing flip hinge described above is characterized in that: a convex ring 102 is provided on the other side of the mounting hole 101 to prevent lubricating oil from overflowing; a groove 602 that mates with the convex ring 102 is provided on the threaded cover 6; and a plurality of oil collection grooves 502 are provided on the side of the retaining pad 5 away from the connecting hole 302.

[0014] The adjustable force slow-closing flip hinge described above is characterized in that: the groove wall surface S of the horn groove 301 is an arc-shaped surface.

[0015] A record player with a slow-closing flip hinge as described above is characterized in that: it includes a main unit 11, a flip cover 12 is provided above the main unit 11, and a second door hinge seat 2 is installed on the flip cover 12 by bolts 13; a foot 14 is provided below the main unit 11, and a threaded part 104 is provided at the bottom of the first door hinge seat 1, which is tightened onto the foot 14 by the threaded part 104.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This invention utilizes the clutch principle of four miniature rollers in the horn groove and the damping friction characteristics of the nylon pads on both sides to achieve slow descent, which is also applicable to heavy flip covers.

[0018] 2. This invention adjusts the friction of the pad by tightening or loosening the screw, which can adjust the slow closing speed of the flip cover, or keep the flip cover at any flip angle. Attached Figure Description

[0019] Figure 1 This is a perspective view of the flip hinge of the present invention;

[0020] Figure 2 This is a perspective view of the second hinge seat of the present invention;

[0021] Figure 3 This is a perspective view of the first hinge seat of the present invention;

[0022] Figure 4 This is a top view of the flip hinge of the present invention;

[0023] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0024] Figure 6 This is a plan view of the hinge wheel of the present invention, which is equipped with miniature rollers and rubber particles; the topmost horn groove in the figure is not equipped with miniature rollers and rubber particles.

[0025] Figure 7 This is an exploded view of the flip hinge of the present invention;

[0026] Figure 8 This is a perspective view of the record player of the present invention.

[0027] In the diagram: 1 is the first hinge seat; 101 is the mounting hole; 102 is the convex ring; 103 is the limiting arc; 104 is the threaded part; 2 is the second hinge seat; 201 is the limiting block; 202 is the stud part; 3 is the hinge wheel; 301 is the horn groove; 302 is the connecting hole; 4 is the miniature roller; 5 is the retaining pad; 501 is the convex post; 502 is the oil collection groove; 6 is the threaded cover; 601 is the round hole; 602 is the groove; 603 is the square countersunk hole; 7 is the screw; 8 is the mounting groove; 9 is the rubber pellet; 10 is the butterfly spring washer; 11 is the main unit; 12 is the flip cover; 13 is the bolt; 14 is the machine foot; 15 is the square step. Detailed Implementation

[0028] The technical features of the present invention will be further described in detail below with reference to the accompanying drawings so that those skilled in the art can understand them.

[0029] An adjustable-force, soft-close flip hinge, such as Figures 1 to 7As shown, it includes a first hinge base 1 and a second hinge base 2 hinged to the first hinge base 1. A circular mounting hole 101 is provided on the upper part of the first hinge base 1. A hinge wheel 3 is installed in the mounting hole 101. Several horn-shaped grooves 301 are provided circumferentially on the outer side of the hinge wheel 3. The two ends of each horn-shaped groove 301 are a large end and a small end, respectively. The groove height H1 at the large end is greater than the groove height H2 at the small end, and the groove height gradually decreases from the large end to the small end. Figure 6 As shown, a miniature roller 4 is installed in the horn groove 301. The diameter of the miniature roller 4 is between the groove height H1 and the groove height H2. The axis of the miniature roller 4 is parallel to the axis of the hinge wheel 3. The outer wall of the hinge wheel 3 is not in contact with the inner wall of the mounting hole 101. On both sides of the hinge wheel 3, there are pads 5 that can drive the hinge wheel 3 to rotate. The outer wall of the pads 5 is not in contact with the inner wall of the mounting hole 101. A threaded cover 6 is provided on the right side of the first door hinge seat 1. A screw 7 is provided on the threaded cover 6 to be tightened with the second door hinge seat 2 to press the hinge wheel 3 and the pads 5.

[0030] One clamping pad 5 is sandwiched between the threaded cover 6 and the hinge wheel 3, and another clamping pad 5 is sandwiched between the hinge wheel 3 and the second door hinge seat 2. The hinge wheel 3 and the clamping pad 5 in this patent are also circular in shape, with diameters smaller than the inner diameter of the mounting hole 101. The hinge wheel 3, the clamping pad 5, and the mounting hole 101 are coaxial. The first door hinge seat 1 cannot directly drive the hinge wheel 3 and the clamping pad 5; instead, the first door hinge seat 1 drives the miniature roller 4, the miniature roller 4 drives the hinge wheel 3, and the hinge wheel 3 drives the two clamping pads 5 to rotate. The horn groove 301 is roughly horn-shaped, and there is at least one horn groove 301, generally multiple grooves are arranged symmetrically around the circumference, and the tips of the horns of the horn grooves 301 are either all clockwise or all counterclockwise. This patent has four horn grooves 301; if the area of ​​the hinge wheel 3 is larger, six or even eight horn grooves 301 can be provided.

[0031] The design of the horn groove 301 in this patent is ingenious. When the miniature roller 4 is at the large end of the horn groove 301, it will not be driven by the first door hinge seat 1 because it is not in contact with the inner wall of the mounting hole 101. When the miniature roller 4 is at the small end of the horn groove 301, it is in contact with the inner wall of the mounting hole 101 and will be driven by the first door hinge seat 1.

[0032] For ease of description, the second hinge seat 2 is fixed in place, and the first hinge seat 1 faces... Figure 6When rotated clockwise, the miniature roller 4 tends to slide towards the larger end of the horn groove 301. However, due to the small size of the horn groove 301, the miniature roller 4 may not slide or the sliding displacement is very small. Because the groove height H2 at the larger end of the horn groove 301 is greater than the diameter of the miniature roller 4, the first door hinge 1 will not drive the hinge wheel 3 and the retaining pad 5 to rotate together. Only the first door hinge 1 rotates by itself, so the resistance is very small. This situation is equivalent to fixing the first door hinge 1 and flipping the second door hinge 2 upwards, so the second door hinge 2 can be easily flipped upwards.

[0033] When the second hinge 2 is fixed, the first hinge 1 faces... Figure 6 When the flap rotates counterclockwise, the miniature roller 4 tends to slide towards the smaller end of the horn groove 301. However, due to the small size of the horn groove 301, the miniature roller 4 may not slide or the sliding displacement is very small. Since the groove height H1 at the smaller end of the horn groove 301 is smaller than the diameter of the miniature roller 4, the first hinge 1 can drive the miniature roller 4 to move together. The miniature roller 4 drives the hinge wheel 3, which in turn drives the two retaining pads 5 to rotate together. Meanwhile, the second hinge 2 and the threaded cover 6 remain stationary. Therefore, one retaining pad 5 will generate friction with the second hinge 2, and the other retaining pad 5 will also generate friction with the threaded cover 6. The resistance to the counterclockwise rotation of the first hinge 1 will greatly increase. This situation is equivalent to the second hinge 2 rotating downward relative to the first hinge 1, allowing the second hinge 2 to descend slowly. When the frictional force is greater than the weight of the flap, the flap will be fixed and will not descend.

[0034] The screw 7 can be rotated using a hexagonal tool, which adjusts the tightness of the clamping of the two retaining pads 5. This adjusts the friction generated when one retaining pad 5 rotates relative to the threaded cover 6, and the friction generated when the other retaining pad 5 rotates relative to the second hinge 2. The larger the area of ​​the retaining pad 5, the tighter it is clamped, and the greater the friction generated, allowing the second hinge 2 to descend slowly or remain stationary at any flip angle. This patented slow-descent hinge is also applicable to flip covers weighing over 5 kg.

[0035] Furthermore, a placement groove 8 is provided at the larger end of the horn-shaped groove 301, and a rubber granule 9 is placed in the placement groove 8. The placement groove 8 is connected to the horn-shaped groove 301, and the height of the placement groove 8 is greater than the height H1 of the larger end. Figure 6 As shown, this allows workers to quickly load the rubber pellets 9 into the placement slot 8. The rubber pellets 9 are preferably made of silicone, but soft plastic can also be used. The purpose of the rubber pellets 9 is to prevent the miniature rollers 4 from slipping, thus providing an auxiliary function. If slippage occurs, the miniature rollers 4 will not be able to drive the hinge wheel 3 to rotate.

[0036] As described above, in the adjustable force slow-closing flip hinge, the pads 5 are symmetrically arranged on the left and right sides of the hinge wheel 3. The pads 5 are made of nylon, preferably round. A connecting hole 302 is provided at the center of the hinge wheel 3. A protrusion 501 that cooperates with the connecting hole 302 is provided on the side of the pad 5 near the connecting hole 302. The protrusion 501 is used to drive the pad 5 to rotate together with the hinge wheel 3.

[0037] The connecting hole 302 can be any shape other than circular. For ease of processing, semi-circular small holes are drilled symmetrically at the four corners of the circular hole to form the connecting hole 302, making it approximately plum blossom-shaped. The protruding post 501 is also semi-circular and mates with the small holes. The second hinge seat 2 is provided with a stud portion 202, which passes through the center of the connecting hole 302, further through the retaining washer 5, and the screw 7 is tightened onto the stud portion 202.

[0038] Furthermore, the end of the stud portion 202 is provided with a square step 15, and a square countersunk hole 603 is provided on the threaded cover 6 to be coaxially and tightly fitted with the square step 15, so as to always maintain the synchronous friction efficiency of the two surfaces and prevent the performance failure caused by long-term slippage of the cover. This ensures that the threaded cover 6 is driven to rotate synchronously by the second hinge seat 2. If slippage occurs, the first hinge seat 1 will... Figure 6 When rotated counterclockwise, that is, in the direction of the bull's horn, the threaded cover 6 may rotate together with the retaining pad 5. The retaining pad 5 and the threaded cover 6 will not generate friction, leading to failure.

[0039] As described above, in the adjustable-force, slow-closing flip hinge, the miniature roller 4 is cylindrical, which facilitates installation and prevents slippage. It is made of a hard metal, such as iron. The rubber granules 9 can be square, and their length can be shorter than that of the miniature roller 4. The hinge wheel 3 can also be made of iron.

[0040] Furthermore, the groove wall surface S of the horn groove 301 is a smoothly transitioning arc surface, which is easy to process and not easy to slip.

[0041] As described above, the adjustable force slow-closing hinge has several oil collection grooves 502 on the side of the pad 5 away from the connection hole 302. The oil collection grooves 502 are elongated and used to store the injected lubricating oil.

[0042] As described above, the adjustable force slow-closing flip hinge has a round hole 601 on the threaded cover 6, and a butterfly spring washer 10 is provided in the round hole 601. Preferably, two butterfly spring washers 10 are provided for better effect and to prevent the screw 7 from loosening. The screw 7 is tightened on the butterfly spring washer 10, and the friction force generated by the retaining pad 5 is adjusted by the butterfly spring washer 10.

[0043] As described above, the adjustable-force soft-close hinge has a limiting arc 103 on one side of the mounting hole 101, and a limiting block 201 at the bottom of the second hinge seat 2 that can abut against the limiting arc 103. A raised ring 102 to prevent lubricant leakage is provided on the other side of the mounting hole 101, and a groove 602 that mates with the raised ring 102 is provided on the threaded cover 6.

[0044] The limiting arc 103 and the limiting block 201 are used to limit the upward angle of the second door hinge seat 2. The limiting arc 103 of this patent is semi-circular. The second door hinge seat 2 and the first door hinge seat 1 can rotate 180 degrees relative to each other. Therefore, the second door hinge seat 2 can be flipped 180 degrees. The limiting arc 103 can also prevent lubricating oil from overflowing.

[0045] This patent also claims protection for a record player employing the slow-closing flip hinge described above, such as... Figure 8 As shown, it includes a main unit 11, a flip cover 12 on top of the main unit 11, the flip cover 12 is made of glass and is relatively heavy, and the second door hinge 2 is installed on the flip cover 12 by bolts 13; a foot 14 is provided below the main unit 11, and a threaded part 104 is provided at the bottom of the first door hinge 1, which is tightened onto the foot 14 by the threaded part 104.

[0046] The other structures and principles of the record player are existing technologies. Besides being used in record players, the flip hinge can also be applied to other items, especially heavy items such as wooden crates. Alternatively, a second hinge seat 2 can be installed below to flip the first hinge seat 1, which also provides a soft-close and adjustable force.

[0047] The embodiments described herein are merely preferred embodiments of the invention and are not intended to limit the inventive concept and scope. Any modifications and improvements made by those skilled in the art to the technical solutions of the invention without departing from the inventive concept should fall within the protection scope of the invention.

Claims

1. An adjustable force slow-motion flip cover hinge, comprising a first door hinge base (1) and a second door hinge base (2) hinged with the first door hinge base (1), characterized in that: The first door hinge seat (1) is provided with a circular mounting hole (101) in the upper part, a hinge wheel (3) is arranged in the mounting hole (101), the outer wall of the hinge wheel (3) is not attached to the inner wall of the mounting hole (101), a plurality of horn grooves (301) are arranged on the outer side of the hinge wheel (3) in the circumferential direction, the two ends of the horn groove (301) are respectively a large end and a small end, the groove height H1 of the large end is greater than the groove height H2 of the small end, and the groove height gradually decreases from the large end to the small end, a micro roller (4) is arranged in the horn groove (301), the diameter of the micro roller (4) is between the groove height H1 and the groove height H2, the axis of the micro roller (4) is parallel to the axis of the hinge wheel (3), a clamping pad (5) rotating together with the hinge wheel (3) is arranged on the two sides of the hinge wheel (3), the outer wall of the clamping pad (5) is also not attached to the inner wall of the mounting hole (101), a threaded cover (6) is arranged on the right side of the first door hinge seat (1), and a screw (7) is arranged on the threaded cover (6) and is screwed with the second door hinge seat (2) to press the hinge wheel (3) and the clamping pad (5).

2. The adjustable force fall-to-close hinge of claim 1, wherein: The large end of the horn groove (301) is provided with a placing groove (8), and a glue particle (9) is arranged in the placing groove (8).

3. The adjustable force fall-to-close hinge of claim 1, wherein: The two clamping pads (5) are symmetrically arranged on the left and right sides of the hinge wheel (3), the material of the clamping pad (5) is nylon, a connecting hole (302) is arranged at the center position of the hinge wheel (3), and a convex column (501) matched with the connecting hole (302) is arranged on the side of the clamping pad (5) close to the connecting hole (302).

4. The adjustable force fall-to-close hinge of claim 1, wherein: The second door hinge seat (2) is provided with a threaded column part (202) penetrating through the hinge wheel (3) and the clamping pad (5), the screw (7) is screwed on the threaded column part (202), the end of the threaded column part (202) is provided as a square-shaped step (15), and a square-shaped counterbore (603) coaxially matched with the square-shaped step (15) is arranged on the threaded cover (6).

5. The adjustable force fall-to-close hinge of claim 3, wherein: The micro roller (4) is in a cylindrical shape and is made of hard metal.

6. The adjustable force fall-to-close hinge of claim 5, wherein: A circular hole (601) is arranged on the threaded cover (6), a butterfly-shaped elastic pad (10) is arranged in the circular hole (601), and the screw (7) is screwed on the butterfly-shaped elastic pad (10).

7. The adjustable force fall-to-close hinge of claim 5, wherein: A limiting circular arc (103) is arranged on one side of the mounting hole (101), and a limiting block (201) capable of abutting against the limiting circular arc (103) is arranged at the bottom of the second door hinge seat (2).

8. The adjustable force fall-to-close hinge of claim 7, wherein: A convex ring (102) preventing lubricating oil from overflowing is arranged on the other side of the mounting hole (101), a groove (602) matched with the convex ring (102) is arranged on the threaded cover (6), and a plurality of oil collecting grooves (502) are arranged on the side of the clamping pad (5) away from the connecting hole (302).

9. The adjustable force fall-to-close hinge of claim 5, wherein: The groove wall surface S of the horn groove (301) is an arc surface.

10. A compact disc player employing the slow-motion flip cover hinge according to any one of claims 1 to 9, characterized in that: It includes a host (11), a flip cover (12) is arranged above the host (11), a second door hinge base (2) is installed on the flip cover (12) through a bolt (13); a machine leg (14) is arranged below the host (11), a threaded part (104) is arranged at the bottom of the first door hinge base (1), and the threaded part (104) is screwed on the machine leg (14).

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