CN210565729U - Reciprocating type locking hinge - Google Patents
Reciprocating type locking hinge Download PDFInfo
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- CN210565729U CN210565729U CN201921652806.3U CN201921652806U CN210565729U CN 210565729 U CN210565729 U CN 210565729U CN 201921652806 U CN201921652806 U CN 201921652806U CN 210565729 U CN210565729 U CN 210565729U
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Abstract
The utility model relates to a reciprocating type locking hinge belongs to sofa accessory technical field, and it makes meshing or break away from between the lock tooth including adopting jam plate, activity locking piece, elasticity closing device and rotatory drive plate arc locked groove complex single screens mode operation, carries out effectual operation on the not equidirectional of y1 and h1 and gains the locking state and return the shelves state, the utility model discloses operate steadily, cross that the shelves change smoothly nimble, the equipment is simple and convenient and running angle is big.
Description
Technical Field
The utility model belongs to the technical field of the sofa accessory, indicate a reciprocating type locking hinge.
Background
With the modern development of society, the sofa has gradually entered each family, and the locking hinge can make the sofa adjust to the most comfortable angle in certain angle. The existing sofa hinge has the following three problems due to the imperfect structure: firstly, the rotation operation is not stable, the stability is poor, and the fault is easy to occur; secondly, the structure is complex, the gear-passing change is not flexible, and the processing and assembling difficulty is high; thirdly, the locking teeth on the arc-shaped locking groove and the movable locking block are arranged on the inner side, and the operation angle is limited.
Disclosure of Invention
The utility model aims at providing a reciprocating type locking hinge that operates steadily, crosses that the shelves change smoothly nimble, the equipment is simple and convenient and operating angle is big.
The purpose of the utility model is realized like this:
a reciprocating type locking hinge comprises a locking plate, a movable locking block, an elastic pressing device and a rotary driving plate, wherein the locking plate is hinged with the rotary driving plate through a positioning shaft, the locking plate comprises a left locking plate a and a right locking plate b which are hinged with each other, an arc locking groove is formed in each of the left locking plate a and the right locking plate b, a stroke groove which is partially overlapped with the arc locking groove is formed in the rotary driving plate, the stroke groove comprises a neutral stop part a and a stop passing part b, and the movable locking block is embedded into the two arc locking grooves and the stroke groove;
a first lock tooth a is formed on the outer arc edge of the arc-shaped lock groove, a second lock tooth a is arranged on the outer end face of the movable lock block, and the elastic pressing device acts on the movable lock block to enable the second lock tooth a to be meshed with the first lock tooth a on the lock plate;
the first lock tooth a comprises an addendum curve surface line and a dedendum curve surface line, the neutral part a is positioned on the outer side of the dedendum curve surface line, and the blocking part b is positioned on the inner side of the addendum curve surface line; when external force acts on the rotary driving plate, the rotary driving plate rotates around the positioning shaft as an axis in the y direction, when the movable locking block is positioned at the neutral stop part a, the second locking tooth a and the first locking tooth a are meshed to move relatively, and when the movable locking block is clamped at the over-stop part b, the second locking tooth a is separated from the first locking tooth a; when external force acts on the rotary driving plate, the rotary driving plate rotates around the positioning shaft as an axis in the direction h, the movable locking block falls back to the idle stop part a under the elastic force of the elastic pressing device, and at the moment, the second locking tooth a is meshed with the first locking tooth a.
In the reciprocating locking hinge, the elastic pressing device is a torsion spring, the torsion spring is fixedly arranged on the rotary driving plate, and the torsion spring abuts against the inner end face of the movable locking block to force the second locking tooth a to be meshed with the first locking tooth a.
In the reciprocating locking hinge, the rotary driving plate is provided with two spring fixing columns, two end portions of the torsion spring are fixed on the spring fixing columns, a middle end portion of the torsion spring is a pressing portion, and the pressing portion abuts against an inner end face of the movable locking block.
In the reciprocating locking hinge, the abutting part of the pressing part and the inner end surface of the movable locking block is of a surface contact structure.
In the reciprocating locking hinge, the rotary driving plate is provided with two spring fixing columns, one end of the torsion spring is a pressing part, the pressing part abuts against the inner end face of the movable locking block, the other end of the torsion spring abuts against one of the spring fixing columns, and the middle end of the torsion spring is fixed on the other spring fixing column.
In the reciprocating locking hinge, the pressing part is of an M-shaped contact structure, and the contact part of the pressing part and the inner end surface of the movable locking block is of more than two point contact structures.
in the reciprocating type locking hinge, a plane where the tooth surface of the movable locking block is located and a plane where the central line of the gear is located respectively form an included angle α and an included angle β, wherein the included angle α is smaller than the included angle β.
In the reciprocating locking hinge, the meshing relative operation angle of the second locking tooth a and the first locking tooth a is 90-270 degrees.
In the reciprocating type locking hinge, the rotary driving plate comprises a left driving plate and a right driving plate which are symmetrically arranged, the left driving plate and the right driving plate are respectively arranged on the outer sides of the left locking plate a and the right locking plate b, and a left cover and a right cover are respectively arranged on the outer sides of the left driving plate and the right driving plate.
In the reciprocating type locking hinge, the left cover and the right cover are both provided with positioning protrusions, and the left driving sheet and the right driving sheet are provided with clamping grooves or clamping holes c matched with the positioning protrusions.
In the reciprocating type locking hinge, the left cover, the left driving piece, the left locking piece a, the right locking piece b, the right driving piece and the right cover are sequentially arranged on the positioning shaft in a penetrating manner.
In the reciprocating type locking hinge, the middle parts of the left cover and the right cover are provided with inward sunken bosses.
Compared with the prior art, the utility model outstanding and profitable technological effect is: the utility model discloses operate steadily, cross that the shelves change smoothly nimble, the equipment is simple and convenient and operating angle is big.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an explosion diagram of the structure of the present invention.
Fig. 3 is a schematic view of a part of the structure of the present invention.
Fig. 4 is a partially enlarged view of a portion F in fig. 3 according to the present invention.
Fig. 5 is a schematic structural diagram of the arc-shaped locking groove of the present invention.
Fig. 6 is a schematic view of a part of the structure of the belt in the running direction of the present invention.
Fig. 7 is a first structural explosion diagram of the present invention.
Fig. 8 is a first schematic structural diagram of the present invention.
Fig. 9 is a first schematic structural diagram of the movable locking block of the present invention.
Fig. 10 is a partially enlarged view of a portion a in fig. 9 according to the present invention.
The reference numerals in the figures denote the meanings:
1-locking the plate; 11 a-left locking tab; 11 b-right locking tab; 1100-arc lock slot; 1100 a-first locking tooth; 2-movable locking block; 2100 a-a second locking tooth; 3-elastic pressing device; 31-a compression section; 4-a rotary drive plate; 4100-stroke slot; 4100 a-neutral part, 4100 b-over part, 4100 c-card slot or hole; 41-left driving plate; 42-right driving plate; 5-positioning the shaft; 6-spring fixing column; 71-left cover; 72-right cover; 7-positioning the projection; 7100-boss; 8-addendum curve surface line; 9-tooth root camberline.
Detailed Description
The invention will be further described with reference to specific embodiments below:
a reciprocating locking hinge is disclosed, as shown in fig. 1-10, comprising a locking plate 1, a movable locking block 2, an elastic pressing device 3 and a rotary driving plate 4, wherein the locking plate 1 and the rotary driving plate 4 are hinged through a positioning shaft 5, the locking plate 1 comprises a left locking plate 11a and a right locking plate 11b which are hinged, an arc locking groove 1100 is respectively arranged on the left locking plate 11a and the right locking plate 11b, a stroke groove 4100 which is partially overlapped with the arc locking groove 1100 is arranged on the rotary driving plate 4, the stroke groove 4100 comprises a neutral part 4100a and a passing part 4100b, and the movable locking block 2 is simultaneously embedded into the two arc locking grooves 1100 and the stroke groove 4100;
a first lock tooth 1100a is formed on the outer arc edge of the arc-shaped lock groove 1100, a second lock tooth 2100a is arranged on the outer end face of the movable lock block 2, and the elastic pressing device 3 acts on the movable lock block 2 to enable the second lock tooth 2100a to be meshed with the first lock tooth 1100a on the lock plate 1;
the first locking tooth 1100a comprises an addendum curved surface line 8 and a dedendum curved surface line 9, the neutral part 4100a is positioned at the outer side of the dedendum curved surface line 9, and the blocking part 4100b is positioned at the inner side of the addendum curved surface line 8; when external force acts on the rotary driving plate 4, the rotary driving plate 4 rotates in the direction y1 around the positioning shaft 5 as the axis, when the movable locking piece 2 is positioned at the neutral part 4100a, the second locking tooth 2100a and the first locking tooth 1100a are engaged to perform relative operation, and when the movable locking piece 2 operates and is clamped at the over-gear part 4100b, the second locking tooth 2100a is disengaged from the first locking tooth 1100 a; when an external force acts on the rotary drive plate 4, the movable lock piece 2 falls back to the neutral portion 4100a by the elastic force of the elastic pressing device 3 while the rotary drive plate 4 rotates in the direction h1 around the positioning shaft 5 as the axis, and at this time, the second lock tooth 2100a and the first lock tooth 1100a are engaged with each other. The utility model discloses in, the rotatory operation of y1 direction is location locking direction, and the rotatory operation of h1 direction is the direction of putting back a grade, and needs to put back a grade and carry out reciprocating motion and need make movable locking piece 2 move earlier and carry out the screens to crossing on the grade portion 4100 b. The utility model discloses adopt single screens mode design, cross shelves portion 4100b promptly, break through the interval restriction defect of gear. The utility model discloses overall structure shift is quick smooth and easy nimble, moves accurate nature, and symmetry and central isotopologue are very good.
Preferably, the elastic pressing device 3 is a torsion spring, the torsion spring is fixedly arranged on the rotary driving plate 4, and the torsion spring abuts against the inner end surface of the movable locking block 2 to force the second locking tooth 2100a to be meshed with the first locking tooth 1100 a. The rotary driving plate 4 is provided with two spring fixing columns 6, two end parts of the torsion spring are fixed on the spring fixing columns 6, the middle end part of the torsion spring is a pressing part 31, and the pressing part 31 abuts against the inner end face of the movable locking block 2. The pressing part 31 is in surface contact structure with the inner end surface of the movable locking block 2. The utility model discloses in, torsion spring is left right rotation type spring, still keeps a horizontal plane function when guaranteeing the spring atress, adopts two turns spring to increase lifting surface area, improves the atress equilibrium and stability.
Preferably, two spring fixing columns 6 are arranged on the rotary driving plate 4, one end of the torsion spring is a pressing part 31, the pressing part 31 abuts against the inner end face of the movable locking block 2, the other end of the torsion spring abuts against one of the spring fixing columns 6, and the middle end of the torsion spring is fixed on the other spring fixing column 6; the pressing portion 31 is a contact structure formed in an M shape, and the abutting position of the pressing portion and the inner end surface of the movable locking block 2 is a point contact structure with more than two points. The pressing part of the utility model adopts multi-point contact, but at least two points are contacted, so that the pressing part is more stably abutted with the inner end surface of the movable locking block 2,
the stress balance and stability are improved, and the torsion spring is ensured not to deviate from an operation area; simultaneously, improve back shelves degree of agreeing with and stability, the process of putting back the shelves guarantees not to appear jumping the shelves phenomenon, and above-mentioned technical scheme's torsion spring can adopt thinner diameter, and the preferred diameter 0.6mm spring diameter of this embodiment has greatly reduced the noise when rotatory, simultaneously, improves the flexibility of product secondary design, and the appearance size can be adjusted in a flexible way.
referring to fig. 9 and 10, preferably, the plane where the tooth surface of the movable locking piece 2 is located and the plane where the gear center line is located form an included angle α and an included angle β, respectively, wherein the included angle α is smaller than the included angle β.
Preferably, the engagement of the second locking tooth 2100a and the first locking tooth 1100a is between 90 ° and 270 °. Further, the operating angle may be limited to 90-180. The utility model discloses a movable locking piece 2 cooperates the setting outwards, not only can make the equipment of whole product more convenient for running angle is bigger, moves moreover more steadily, crosses shelves more smoothly nimble.
Preferably, the rotary driving plate 4 includes a left driving plate 41 and a right driving plate 42 symmetrically disposed, the left driving plate 41 and the right driving plate 42 are disposed at the outer sides of the left locking piece 11a and the right locking piece 11b, respectively, and a left cover 71 and a right cover 72 are disposed at the outer sides of the left driving plate 41 and the right driving plate 42, respectively. The utility model discloses the left side housing 71 and the right side housing 72 that well set up can prevent that elasticity closing device 3 is preferred in this text to break away from axially in the orbit of normal operation with activity locking piece 2 for torque spring, have improved the stationarity of operation, have also played the effect of protection elasticity closing device 3 and activity locking piece 2 simultaneously, have better dustproof effect.
Preferably, the left cover 71 and the right cover 72 are both provided with positioning protrusions 7, and the left driving plate 41 and the right driving plate 42 are provided with locking grooves or locking holes 4100c matched with the positioning protrusions 7. The utility model discloses in, at the operation in-process, the torsion spring of use can further guarantee that torsion spring can not break away from when having left housing 71 and right housing 72 for torsion spring all the time with activity locking piece 2 looks butt.
Preferably, the left cover 71, the left driving plate 41, the left locking plate 11a, the right locking plate 11b, the right driving plate 42 and the right cover 72 are sequentially arranged on the positioning shaft 5 in a penetrating manner.
Preferably, the middle parts of the left cover 71 and the right cover 72 are provided with inward-recessed bosses 7100.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (12)
1. The utility model provides a reciprocating type locking hinge, includes jam plate (1), activity locking piece (2), elasticity closing device (3) and rotatory drive plate (4), and jam plate (1) and rotatory drive plate (4) are articulated mutually through location axle (5), its characterized in that: the lock plate (1) comprises a left lock plate (11 a) and a right lock plate (11 b) which are hinged, an arc-shaped lock groove (1100) is formed in each of the left lock plate (11 a) and the right lock plate (11 b), a stroke groove (4100) partially overlapped with the arc-shaped lock groove (1100) is formed in the rotary drive plate (4), the stroke groove (4100) comprises a neutral part (4100 a) and a shift part (4100 b), and the movable lock block (2) is embedded into the two arc-shaped lock grooves (1100) and the stroke groove (4100) at the same time;
a first lock tooth (1100 a) is formed on the outer arc edge of the arc-shaped lock groove (1100), a second lock tooth (2100 a) is arranged on the outer end face of the movable lock block (2), and the elastic pressing device (3) acts on the movable lock block (2) to enable the second lock tooth (2100 a) to be meshed with the first lock tooth (1100 a) on the lock plate (1);
the first locking tooth (1100 a) comprises an addendum curved surface line (8) and a dedendum curved surface line (9), the idle blocking part (4100 a) is positioned at the outer side of the dedendum curved surface line (9), and the over blocking part (4100 b) is positioned at the inner side of the addendum curved surface line (8); when external force acts on the rotary driving plate (4), the rotary driving plate (4) rotates around the positioning shaft (5) as an axis in the direction y1, when the movable locking block (2) is positioned at the neutral part (4100 a), the second locking tooth (2100 a) and the first locking tooth (1100 a) are engaged to perform relative operation, and when the movable locking block (2) is operated and clamped at the over-gear part (4100 b), the second locking tooth (2100 a) is separated from the first locking tooth (1100 a); when external force acts on the rotary driving plate (4), the movable locking block (2) falls back to the idle stop part (4100 a) under the elastic force of the elastic pressing device (3) in the process that the rotary driving plate (4) rotates in the direction h1 around the positioning shaft (5) as the axis, and at the moment, the second locking tooth (2100 a) is meshed with the first locking tooth (1100 a).
2. The reciprocating latching hinge of claim 1, wherein: the elastic pressing device (3) is a torsion spring which is fixedly arranged on the rotary driving plate (4) and abuts against the inner end face of the movable locking block (2) to force the second locking teeth (2100 a) to be meshed with the first locking teeth (1100 a).
3. The reciprocating latching hinge of claim 2, wherein: the rotary driving plate (4) is provided with two spring fixing columns (6), two end parts of the torsion spring are fixed on the spring fixing columns (6), the middle end part of the torsion spring is a pressing part (31), and the pressing part (31) abuts against the inner end face of the movable locking block (2).
4. The reciprocating latching hinge of claim 3, wherein: the pressing part (31) is in a surface contact structure with the inner end surface of the movable locking block (2).
5. The reciprocating latching hinge of claim 2, wherein: the rotary driving plate (4) is provided with two spring fixing columns (6), one end of the torsion spring is a pressing part (31), the pressing part (31) abuts against the inner end face of the movable locking block (2), the other end of the torsion spring abuts against one of the spring fixing columns (6), and the middle end of the torsion spring is fixed on the other spring fixing column (6).
6. The reciprocating latching hinge of claim 5, wherein: the pressing part (31) is of an M-shaped contact structure, and the abutting part of the pressing part and the inner end face of the movable locking block (2) is of more than two point contact structures.
7. the reciprocating locking hinge as claimed in any one of claims 1 to 6, wherein the plane of the tooth surface of the movable locking piece (2) forms an angle α and an angle β with the plane of the gear center line, respectively, wherein the angle α is smaller than the angle β.
8. The reciprocating latching hinge of claim 1, wherein: the meshing relative operation angle of the second lock tooth (2100 a) and the first lock tooth (1100 a) is 90-270 degrees.
9. The reciprocating latching hinge of claim 1, wherein: rotatory drive plate (4) including left driving plate (41) and right driving plate (42) that the symmetry set up, left driving plate (41) and right driving plate (42) set up respectively in the outside of left locking plate (11 a) and right locking plate (11 b), be provided with left housing (71) and right housing (72) respectively in the outside of left driving plate (41) and right driving plate (42).
10. The reciprocating latching hinge of claim 9, wherein: the left cover (71) and the right cover (72) are both provided with positioning protrusions (7), and the left driving sheet (41) and the right driving sheet (42) are provided with clamping grooves or clamping holes (4100 c) matched with the positioning protrusions (7).
11. The reciprocating latching hinge of claim 10, wherein: the left cover (71), the left driving piece (41), the left locking piece (11 a), the right locking piece (11 b), the right driving piece (42) and the right cover (72) are sequentially arranged on the positioning shaft (5) in a penetrating mode.
12. The reciprocating latching hinge of claim 9, 10 or 11, wherein: the middle parts of the left cover (71) and the right cover (72) are provided with inward sunken bosses (7100).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019207375567 | 2019-05-22 | ||
| CN201920737556 | 2019-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210565729U true CN210565729U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921652806.3U Active CN210565729U (en) | 2019-05-22 | 2019-09-30 | Reciprocating type locking hinge |
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|---|---|
| CN (1) | CN210565729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021062905A1 (en) * | 2019-05-22 | 2021-04-08 | 浙江天台天美达机电有限公司 | Reciprocating-type locking hinge |
-
2019
- 2019-09-30 CN CN201921652806.3U patent/CN210565729U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021062905A1 (en) * | 2019-05-22 | 2021-04-08 | 浙江天台天美达机电有限公司 | Reciprocating-type locking hinge |
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