Adjustable split hinge

Abstract

The utility model discloses an adjustable split hinge which comprises a fixed seat, a movable seat, a first linkage piece, a second linkage piece and an angle adjusting and positioning mechanism. The upper end and the lower end of the first linkage part are respectively pivoted with the movable seat and the fixed seat; the upper end and the lower end of the second linkage part are respectively pivoted with the movable seat and the fixed seat, and the second linkage part is positioned below the first linkage part; the angle adjusting and positioning mechanism is matched with the fixed base, the movable base and the second linkage piece and used for adjusting the opening and closing angle of the movable base relative to the fixed base and conducting positioning. According to the angle adjusting and positioning mechanism, the opening and closing angle of the movable seat relative to the fixed seat can be adjusted and positioned, so that the turning cover plate connected with the movable seat can be positioned at different opening and closing angles, and a user can use the turning cover plate conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to furniture field especially point to a kind of adjustable split hinge. BACKGROUND

[0002] With the improvement of people's living standards, people's requirements for furniture are also getting higher and higher. At present, the bed on the market will be provided with a backrest at the head position for leaning when sitting. Most of the backrests are vertically arranged between the bed frame; when people want to sit on the bed to rest, the angle of the backrest is too straight, which does not conform to the user's physique or sitting habit, so that the waist lacks support, making the user feel very inconvenient, and sitting for a long time will feel uncomfortable. Therefore, someone designs the backrest to include a fixed headboard and a flip cover plate that is movably connected to the headboard. A storage space can be formed between the headboard and the flip cover plate. The flip cover plate is connected to the headboard by a split hinge (such as an upward hinge) so that the flip cover plate can be flipped up and positioned for the human body to rely on. However, the existing split hinge can only switch between the folded and unfolded states of the flip cover plate, and cannot adjust the opening angle of the flip cover plate relative to the headboard (i.e., the flip cover plate cannot be positioned at different opening angles), which cannot meet the different opening angle requirements of different users for the flip cover plate, and has limitations in use.

[0003] In view of the above problems, it is necessary to study an adjustable split hinge that can position the flip cover plate at different opening angles to facilitate user use. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims to provide an adjustable split hinge that can position the flip cover plate at different opening angles to facilitate user use.

[0005] To achieve the above purpose, the solution of the utility model is as follows:

[0006] An adjustable split hinge includes a fixed seat, a movable seat, a first connecting member, a second connecting member, and an angle adjusting and positioning mechanism. The upper end and the lower end of the first connecting member are respectively pivoted to the movable seat and the fixed seat. The upper end and the lower end of the second connecting member are respectively pivoted to the movable seat and the fixed seat, and the second connecting member is below the first connecting member. The angle adjusting and positioning mechanism cooperates with the fixed seat, the movable seat and the second connecting member. The angle adjusting and positioning mechanism is used to adjust and position the opening angle of the movable seat relative to the fixed seat.

[0007] The angle adjusting positioning mechanism comprises a movable part, a positioning part, an unlocking part and a reset part; the movable part is fixed to the movable seat and is provided with a plurality of one-way ratchets; the positioning part is pivotally connected with the second linkage part and is provided with a pawl part which is in movable engagement with each one-way ratchet of the movable part; the reset part is arranged between the positioning part and the second linkage part and is used to drive the positioning part to keep engagement with the one-way ratchet; the unlocking part is pivotally connected with the movable seat and is rotatable between an unlocking position and a locking position; the pivotal connection center of the unlocking part and the movable seat and the pivotal connection center of the second linkage part and the movable seat are concentrically arranged; the unlocking part is provided with an unlocking part which is in abutment with the pawl part; when the unlocking part is in abutment with the pawl part, the unlocking part drives the pawl part to disengage from the one-way ratchet.

[0008] The positioning part is pivotally connected with the second linkage part through a positioning pivot shaft; the reset part adopts a torsion spring structure, the reset part is sleeved on the positioning pivot shaft, and the two ends of the reset part are in abutment with the positioning part and the second linkage part respectively.

[0009] The second linkage part is provided with a blocking part for the end of the reset part to abut against.

[0010] The movable seat is provided with a first limiting part and a second limiting part, and the unlocking part is in abutment with the first limiting part and the second limiting part; when the unlocking part is in abutment with the first limiting part, the unlocking part is in the locking position; when the unlocking part is in abutment with the second limiting part, the unlocking part is in the unlocking position.

[0011] The first limiting part is a plate-shaped structure, and the first limiting part is provided with a connecting hole.

[0012] The unlocking part is provided with a cutoff part which is in abutment with the first limiting part, and a recessed avoiding part is formed between the cutoff part and the unlocking part.

[0013] The unlocking part is an arc-shaped structure.

[0014] The movable part and the movable seat are integrally formed.

[0015] The fixed seat is provided with a fixed hole.

[0016] After the above scheme is adopted, when the adjustable split hinge is used, the fixed seat can be used to be connected with the headboard, the movable seat can be used to be connected with the flip cover, and the angle adjusting positioning mechanism is used to adjust and position the opening angle of the movable seat relative to the fixed seat, so that the flip cover can be positioned at different opening angles, thereby facilitating the user to use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural exploded view of the utility model.

[0018] Figure 2 It is a structural schematic view of the utility model in an initial state Figure One .

[0019] Figure 3 Structure diagram of the utility model in initial state Figure Two .

[0020] Figure 4 Structure diagram of the utility model in initial state Figure Three .

[0021] Figure 5 Structure diagram of the utility model in unfolded state Figure One .

[0022] Figure 6 Structure diagram of the utility model in unfolded state Figure Two .

[0023] Figure 7 Structure diagram of the utility model in unfolded state Figure Three .

[0024] Figure 8 Structure diagram of the utility model in unfolded state Figure Four .

[0025] Figure 9 Structure diagram of the utility model in unlocking state Figure One .

[0026] Figure 10 Structure diagram of the utility model in unlocking state Figure Two .

[0027] Figure 11 Structure diagram of the utility model in locking state Figure One .

[0028] Figure 12 Structure diagram of the utility model in locking state Figure Two .

[0029] Explanation of reference numerals:

[0030] Fixed seat 1, fixed hole 11,

[0031] Movable seat 2, first limiting part 21, connecting hole 211, second limiting part 22,

[0032] First connecting member 3,

[0033] Second connecting member 4, gear position 41,

[0034] Angle adjusting positioning mechanism 5,

[0035] Movable piece 51, one-way ratchet 511,

[0036] Positioning piece 52, pawl 521,

[0037] unlocking part 53, cutoff part 532, avoiding part 533,

[0038] reset part 54,

[0039] first pivot shaft 6,

[0040] second pivot shaft 7,

[0041] third pivot shaft 8,

[0042] positioning pivot shaft 9. DETAILED DESCRIPTION

[0043] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments.

[0044] As Figures 1 to 12 shown, the utility model discloses a kind of adjustable split hinge, including fixed seat 1, movable seat 2, first linkage 3, second linkage 4 and angle adjustment positioning mechanism 5;Fixed seat 1 can be used to connect with bed head board, movable seat 2 can be used to connect with flip cover plate;The upper end and lower end of first linkage 3 are respectively pivoted with movable seat 2 and fixed seat 1;The upper end and lower end of second linkage 4 are respectively pivoted with movable seat 2 and fixed seat 1, and second linkage is below first linkage 3, the spacing between the upper end of second linkage 4 and the upper end of first linkage 3 is less than the spacing between the lower end of second linkage 4 and the lower end of first linkage 3;Angle adjustment positioning mechanism 5 is matched with fixed seat 1, movable seat 2 and second linkage 4, and angle adjustment positioning mechanism 5 is used to adjust the opening angle of movable seat 2 relative to fixed seat 1 and positioning, so that flip cover plate can be positioned at different opening angles, to facilitate user use.Wherein, the angle adjustment positioning mechanism 5 can include movable part 51, positioning part 52, unlocking part 53 and reset part 54;Movable part 51 is fixed to movable seat 2, and movable part 51 is provided with a plurality of one-way ratchet teeth 511;Positioning part 52 is pivoted with second linkage 4, and positioning part 52 has pawl part 521 that is movably engaged with each one-way ratchet tooth 511 of movable part 51;Reset part 54 is cooperated between positioning part 52 and second linkage 4 and is used to drive positioning part 52 to keep engagement with one-way ratchet tooth 511;Unlocking part 53 is pivoted with movable seat 2, and unlocking part 53 rotates between unlocking position and locking position, and the pivot center of unlocking part 53 and movable seat 2 and the pivot center of second linkage 4 and movable seat 2 are concentrically arranged, and unlocking part 53 has unlocking part 531 that is movably abuts pawl part 521;When unlocking part 531 abuts pawl part 521, unlocking part 531 drives pawl part 521 to release the detent with one-way ratchet tooth 511.

[0045] The working principle of the adjustable split hinge of the utility model is:

[0046] cooperating Figures 2 to 4 As shown in the initial state, at this time under the action of the reset member 54, the pawl part 521 of the positioning member 52 engages the first one-way ratchet tooth 511 of the movable part 51; cooperating Figures 5 to 8 As shown, in the initial state, when the movable seat 2 is rotated in the unfolding direction, the pawl part 521 of the positioning member 52 can selectively engage the second one-way ratchet tooth 511 to the last one-way ratchet tooth 511 of the movable part 51 (at this time the utility model is in the unfolded state); As known from the foregoing, by rotating the movable seat 2 in the unfolding direction and selecting the one-way ratchet tooth 511 corresponding to the desired opening angle to engage with the pawl part 521, the movable seat 2 can be positioned at the desired opening angle, so that the utility model can adjust the opening angle of the movable seat 2 relative to the fixed seat 1 and be positioned;

[0047] cooperating Figure 9 and Figure 10 As shown, after the pawl part 521 of the positioning member 52 engages the last one-way ratchet tooth 511 of the movable part 51, the movable seat 2 is continuously rotated in the unfolding direction, which will make the unlocking member 53 in the unlocked position push against the pawl part 521 of the positioning member 52, so that the pawl part 521 of the positioning member 52 and the one-way ratchet tooth 511 are disengaged, thereby realizing unlocking (at this time the utility model is in the unlocked state), at this time the movable seat 2 can be rotated in the folding direction; After that, the movable seat 2 is rotated in the folding direction, the pawl part 521 of the positioning member 52 can pass through the last one-way ratchet tooth 511 to the second one-way ratchet tooth 511 of the movable part 51 in reverse, and the pawl part 521 of the positioning member 52 can drive the unlocking member 53 to rotate under the action of friction; cooperating Figure 11 and Figure 12 As shown, when the unlocking member 53 rotates to the locked position, at this time the unlocking member 53 no longer rotates with the pawl part 521 of the positioning member 52 (at this time the utility model is in the locked state); After that, continue to rotate the movable seat 2 in the folding direction, the pawl part 521 of the positioning member 52 is separated from the unlocking part 531 of the unlocking member 53, and under the action of the reset member 54, the pawl part 521 of the positioning member 52 engages the first one-way ratchet tooth 511 of the movable part 51, and returns to the initial state.

[0048] In the embodiment of the utility model, the fixed seat 1 is provided with a fixed hole 11 to facilitate connection with the headboard through a screw.

[0049] In the embodiment of the utility model, the movable seat 2 is equipped with the first limiting part 21 and the second limiting part 22, and the unlocking piece 53 movably abuts against the first limiting part 21 and the second limiting part 22; when the unlocking piece 53 abuts against the first limiting part 21, the unlocking piece 53 is in the locking position; when the unlocking piece 53 abuts against the second limiting part 22, the unlocking piece 53 is in the unlocking position. The first limiting part 21 is a plate-shaped structure, so that the first limiting part 21 can also be used to connect with the flip cover, and the first limiting part 21 has a connecting hole 211 to facilitate the connection with the flip cover through a screw. The unlocking piece 53 has a cutoff part 532 movably abutting against the first limiting part 21, a recessed avoiding part 533 is formed between the cutoff part 532 and the unlocking part 531, the avoiding part 533 is used for avoiding the pawl part 521 of the positioning piece 52, so that when the movable seat 2 is rotated in the folding direction, the pawl part 521 of the positioning piece 52 can be separated from the unlocking part 531 of the unlocking piece 53; the unlocking part 531 is an arc-shaped structure, so as to avoid the problem that the pawl part 521 and the unlocking part 531 are completely locked.

[0050] In the embodiment of the utility model, the upper and lower ends of the first linkage 3 can be respectively pivoted with the movable seat 2 and the fixed seat 1 through the first pivoting shaft 6.

[0051] In the embodiment of the utility model, the upper end of the second linkage 4 and the unlocking piece 53 are pivoted with the movable seat 2 through the second pivoting shaft 7, and the lower end of the second linkage 4 is pivoted with the fixed seat 1 through the third pivoting shaft 8.

[0052] In the embodiment of the utility model, the movable piece 51 is integrally formed with the movable seat 2, so that the structure of the utility model can be simplified.

[0053] In the embodiment of the utility model, the positioning piece 52 is pivoted with the second linkage 4 through the positioning pivoting shaft 9; the reset piece 54 adopts a torsional spring structure, the reset piece 54 is sleeved with the positioning pivoting shaft 9 of the positioning piece 52, the two ends of the reset piece 54 abut against the positioning piece 52 and the second linkage 4 respectively, so that the reset piece 54 can drive the positioning piece 52 to keep meshing with the one-way ratchet 511; the second linkage 4 can be provided with a gear position part 41 for the end part of the reset piece 54 to abut against.

[0054] The above embodiment and drawing are not limited to the product shape and style of the utility model, and any ordinary technical personnel in the technical field can make appropriate changes or modifications, which should be regarded as not departing from the patent category of the utility model.

Claims

1. An adjustable split hinge, characterized by: The angle-adjusting positioning mechanism is matched with the fixed seat, the movable seat and the second linkage member, and is used for adjusting and positioning the opening and closing angle of the movable seat relative to the fixed seat. The upper end and the lower end of the first linkage member are respectively pivoted with the movable seat and the fixed seat. The upper end and the lower end of the second linkage member are respectively pivoted with the movable seat and the fixed seat, and the second linkage member is below the first linkage member. The angle-adjusting positioning mechanism is matched with the fixed seat, the movable seat and the second linkage member, and is used for adjusting and positioning the opening and closing angle of the movable seat relative to the fixed seat.

2. The adjustable split hinge of claim 1, wherein: The angle-adjusting positioning mechanism comprises a movable member, a positioning member, an unlocking member and a reset member. The movable member is fixed to the movable seat, and is provided with a plurality of one-way ratchets. The positioning member is pivoted with the second linkage member, and has a pawl part which is in movable engagement with each one-way ratchet of the movable member. The reset member is matched between the positioning member and the second linkage member, and is used for driving the positioning member to keep engagement with the one-way ratchet. The unlocking member is pivoted with the movable seat and rotates between an unlocking position and a locking position, the pivoting center of the unlocking member and the pivoting center of the second linkage member are concentrically arranged, and the unlocking member has an unlocking part which is in engagement with the pawl part; when the unlocking part is in engagement with the pawl part, the pawl part is released from the one-way ratchet.

3. The adjustable split hinge of claim 2, wherein: The positioning member is pivoted with the second linkage member through a positioning pivoting shaft, and the reset member adopts a torsion spring structure, the reset member is sleeved with the positioning pivoting shaft, and the two ends of the reset member are respectively in abutment with the positioning member and the second linkage member.

4. The adjustable split hinge of claim 3, wherein: The second linkage member is provided with a blocking part for abutment of the end of the reset member.

5. The adjustable split hinge of claim 2, wherein: The movable seat is provided with a first limiting part and a second limiting part, and the unlocking member is in abutment with the first limiting part and the second limiting part; when the unlocking member is in abutment with the first limiting part, the unlocking member is in the locking position; When the unlocking member is in abutment with the second limiting part, the unlocking member is in the unlocking position.

6. The adjustable split hinge of claim 5, wherein: The first limiting part is a plate structure, and has a connecting hole.

7. The adjustable split hinge of claim 5, wherein: The unlocking member has a cut-off part which is in abutment with the first limiting part, and a recessed avoiding part is formed between the cut-off part and the unlocking part.

8. The adjustable split hinge of claim 2, wherein: The unlocking part is an arc structure.

9. The adjustable split hinge of claim 2, wherein: The movable member is integrally formed with the movable seat.

10. The adjustable split hinge of claim 1, wherein: The fixed seat is provided with a fixed hole.

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