CN219221031U - Unidirectional switching hinge - Google Patents

Abstract

The utility model belongs to the technical field of hinges, and relates to a unidirectional transfer hinge which comprises a first rotating body, a second rotating body, an inner shaft, an elastic piece, a pressing piece and a crown ratchet wheel; the first rotating body comprises a first circular tube body and a second circular tube body which are mutually fixed at intervals; the second rotating body comprises a third circular tube body arranged between the first circular tube body and the second circular tube body; the inner shaft is fixedly arranged in the third circular tube body in the circumferential direction; the elastic piece is arranged in the third circular tube body and is used for applying elastic force to the inner shaft; the pressing piece is arranged in the first circular tube body, one end of the pressing piece is connected with the inner shaft, and the other end of the pressing piece penetrates out of the first circular tube body; the crown-shaped ratchet wheel is arranged in the second circular tube body and is connected with the inner shaft; the crown ratchet wheel is provided with a ratchet, the inner wall of the second circular tube body is provided with a one-way gear, and the one-way gear is meshed with the ratchet, so that the first rotating body can only rotate towards one rotation direction relative to the second rotating body; after the pressing piece pushes the inner shaft to move to drive the crown ratchet to be far away from the unidirectional gear, the first rotating body rotates bidirectionally.

Description

Unidirectional switching hinge

Technical Field

The utility model relates to the technical field of hinges, in particular to a unidirectional transfer hinge.

Background

Hinges are mechanical devices used to connect two solids and allow relative rotation between the two, and are widely used in the field of various mechanical structural products.

Most of the existing hinges rotate in double rotation directions or are further screwed and fixed through fasteners, so that two connected solids are kept at a certain angle; however, with the continuous emergence of various products with rotating structures, today, hinges that singly realize rotating connection are not enough to meet certain special rotating modes, and thus cannot meet the use requirements of certain products at the rotating connection structure.

Disclosure of Invention

The embodiment of the utility model aims to solve the technical problem that the existing hinge is single in rotation mode.

In order to solve the technical problems, the embodiment of the utility model provides a unidirectional transfer hinge, which adopts the following technical scheme:

the unidirectional changeover hinge comprises:

the first rotating body comprises a first circular tube body and a second circular tube body which are mutually fixed and arranged at intervals;

the second rotating body comprises a third circular tube body arranged between the first circular tube body and the second circular tube body;

the inner shaft is fixedly arranged in the third circular tube body in the circumferential direction and is provided with a first end facing the first circular tube body and a second end facing the second circular tube body;

an elastic member mounted in the third circular tube body for applying a force to the inner shaft toward the first end;

the pressing piece is arranged in the first circular tube body, one end of the pressing piece is fixedly connected with the first end, and the other end of the pressing piece penetrates out of the first circular tube body;

the crown-shaped ratchet wheel is arranged in the second circular tube body, one end of the crown-shaped ratchet wheel is fixedly connected with the second end, and a ratchet is arranged on one side of the crown-shaped ratchet wheel, which faces the first end;

wherein, the inner wall of the second round tube body is provided with a one-way gear which is opposite to the ratchet; when the unidirectional blocking teeth are meshed with the ratchets, the first rotating body rotates unidirectionally relative to the second rotating body in a rotation direction, and after the pressing piece is pressed to push the inner shaft to move towards the second end, the unidirectional blocking teeth are disengaged from the ratchets, the first rotating body can rotate bidirectionally relative to the second rotating body.

Further, in a preferred aspect of some embodiments, the first rotating body further includes a concave sheet, and the first circular tube body and the second circular tube body are disposed at intervals on an edge of the concave sheet.

Further, in a preferred solution of some embodiments, the second rotating body further includes a convex sheet, the third circular tube body is disposed at a middle position of an edge of the convex sheet, and a length of the third circular tube body is equal to or smaller than a distance between the first circular tube body and the second circular tube body.

Further, in a preferred scheme of some embodiments, an annular flange is convexly arranged on one side of the inner wall of the lumen of the second circular tube body, which is close to the third circular tube body, and the unidirectional blocking tooth is arranged on one side of the annular flange, which is away from the third circular tube body.

Further, in a preferred version of some embodiments, the crown wheel includes a crown wheel having a mating surface and a connecting shaft fixedly connected to a center of the mating surface, the ratchet teeth are annularly distributed on the mating surface around the connecting shaft, and the connecting shaft passes through the annular flange to the third tubular body and is fixedly connected to the second end of the inner shaft.

Further, in a preferred aspect of some embodiments, the elastic member is sleeved on the connecting shaft, one end of the elastic member abuts against the annular flange, and the other end abuts against the inner shaft.

Further, in a preferred scheme of some embodiments, the pressing piece includes a button and a transmission shaft, the button is fixedly mounted on the transmission shaft and penetrates out of the first circular tube body, and the transmission shaft penetrates from the first circular tube body to the third circular tube body and is fixedly connected with the first end of the inner shaft.

Further, in a preferred aspect of some embodiments, the inner shaft is provided with a first docking groove at the first end and a second docking groove at the second end, the transmission shaft is fixedly inserted into the first docking groove, and the connection shaft is fixedly inserted into the second docking groove.

Further, in a preferred scheme of some embodiments, the outer surface of the inner shaft is convexly provided with a limiting rib, the inner wall of the lumen of the third circular tube body is correspondingly provided with a limiting groove, and the inner shaft is inserted into the lumen of the third circular tube body and the limiting rib is mutually matched with the limiting groove.

Further, in a preferred scheme of some embodiments, the unidirectional switching hinge further comprises a first gasket and a second gasket, wherein the first gasket is installed between the first circular tube body and the third circular tube body, and the second gasket is installed between the second circular tube body and the third circular tube body;

and/or, the unidirectional transfer hinge further comprises an end cover, and the end cover is covered on one end, far away from the third circular tube, of the second circular tube.

Compared with the prior art, the unidirectional transfer hinge provided by the embodiment of the utility model has the following main beneficial effects:

the unidirectional transfer hinge is hinged through a first rotating body and a second rotating body, the second rotating body is connected with a crown-shaped ratchet wheel through an inner shaft, and when the second rotating body rotates towards a rotation direction relative to the first rotating body, a ratchet of the crown-shaped ratchet wheel is clamped and limited by a unidirectional gear; when the second rotating body rotates towards the other rotating direction relative to the first rotating body, the unidirectional gear slides relative to the ratchet teeth and is not engaged with the ratchet teeth, so that the second rotating body can rotate relative to the first rotating body; in addition, the pressing piece is pressed to push the inner shaft to move towards the second end, so that the crown-shaped ratchet wheel fixedly connected with the inner shaft is far away from the unidirectional blocking teeth, and therefore the ratchet wheel is not limited by circumferential clamping of the unidirectional blocking teeth, and at the moment, the first rotating body can rotate in double rotation directions; therefore, the second rotating body of the unidirectional switching hinge can rotate towards one rotation direction relative to the first rotating body, and when the unidirectional switching hinge needs to rotate towards the other rotation direction for adjustment, the bidirectional rotation can be realized through the pressing of the pressing piece, and the unidirectional switching hinge is simple in operation and convenient to use.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art. Wherein:

FIG. 1 is a schematic perspective view of a unidirectional transfer hinge according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of the one-way transfer hinge of FIG. 1;

FIG. 3 is an exploded view of the one-way transfer hinge of FIG. 1;

FIG. 4 is another exploded view of the one-way transfer hinge of FIG. 1;

fig. 5 is a further exploded view of the one-way transfer hinge of fig. 1.

The reference numerals in the drawings are as follows:

100. a unidirectional transfer hinge;

10. a first rotating body; 11. the first round tube body; 12. the second round tube body; 121. an annular flange; 1211. unidirectional gear teeth; 13. a concave sheet;

20. a second rotating body; 21. a third round tube body; 211. a limit groove; 22. a male tab;

30. an inner shaft; 31. a first end; 32. a second end; 33. a limit rib;

40. an elastic member;

50. a pressing member; 51. a key; 52. a transmission shaft;

60. a crown ratchet; 61. a crown wheel; 611. a ratchet; 62. a connecting shaft;

70. a first gasket; 80. a second gasket; 90. an end cap.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terms used in the specification are used herein for the purpose of describing particular embodiments only and are not intended to limit the present utility model, for example, the orientations or positions indicated by the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are orientations or positions based on the drawings, which are merely for convenience of description and are not to be construed as limiting the present utility model.

The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion; the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

In the description of the utility model and the claims and the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The embodiment of the present utility model provides a unidirectional transferring hinge 100, as shown in fig. 1 and 2, the unidirectional transferring hinge 100 includes a first rotating body 10, a second rotating body 20, an inner shaft 30, an elastic member 40, a pressing member 50 and a crown ratchet 60, and the first rotating body 10 and the second rotating body 20 are unidirectional hinged through the inner shaft 30, the elastic member 40, the pressing member 50 and the crown ratchet 60.

The first rotating body 10 includes a first circular tube body 11 and a second circular tube body 12 which are fixed to each other and are arranged at intervals.

The second rotating body 20 includes a third circular tube 21 installed between the first circular tube 11 and the second circular tube 12.

The inner shaft 30 is fixedly mounted in the third circular tube 21 in the circumferential direction, the inner shaft 30 is provided with a first end 31 and a second end 32, the first end 31 faces the first circular tube 11, and the second end 32 faces the second circular tube 12.

The pressing piece 50 is arranged in the first circular tube body 11, one end of the pressing piece is fixedly connected with the first end 31, and the other pressing piece penetrates out of the first circular tube body 11;

a crown ratchet 60 installed in the second circular tube body 12 and having one end fixedly connected to the second end 32, the crown ratchet 60 being provided with a ratchet 611 at a side facing the first end 31; correspondingly, the inner wall of the second circular tube body 12 is provided with a unidirectional blocking tooth 1211 opposite to the ratchet 611, and the unidirectional blocking tooth 1211 is used for unidirectional abutment of the ratchet 611.

It should be noted that, the second rotating body 20 forms a mating structure of axially sliding connection and synchronously rotating with the inner shaft 30, the pressing member 50 and the crown ratchet 60, and the second rotating body 20 is hinged with the first rotating body 10 in one direction through the pressing member 50, the inner shaft 30 and the crown ratchet 60 which are connected in series in sequence.

The elastic member 40 is mounted in the third circular tube 21 for applying a force to the inner shaft 30 towards the first end 31.

Under the action of no external force, the inner shaft 30 is driven by the thrust of the elastic piece 40 to drive one side of the crown ratchet 60 provided with the ratchet teeth 611 to approach to the unidirectional blocking teeth 1211, so that the unidirectional blocking teeth 1211 are meshed and abutted with the ratchet teeth 611, and at the moment, the crown ratchet 60 is limited in a unidirectional way by the circumferential direction of the unidirectional blocking teeth 1211.

Thus, when the first rotating body 10 rotates in one rotation direction relative to the second rotating body 20, the unidirectional blocking teeth 1211 are clamped in the tooth grooves of the ratchet teeth 611 on the crown ratchet 60, and the unidirectional blocking teeth 1211 are abutted against the ratchet teeth 611 to prevent the crown ratchet 60 from rotating; when the first rotating body 10 rotates in the other rotational direction with respect to the second rotating body 20, the one-way blocking tooth 1211 slides with respect to the ratchet teeth 611, and the one-way blocking tooth 1211 slides over the tooth back of the ratchet teeth 611 without limiting the ratchet teeth 611, so that the first rotating body 10 can rotate.

It can be seen that, under the action of no external force, the first rotating body 10 rotates unidirectionally relative to the second rotating body 20, i.e. the first rotating body 10 can only rotate in one rotation direction, and after the pressing member 50 is pressed to push the inner shaft 30 to move toward the second end 32, the unidirectional blocking teeth 1211 are disengaged from the ratchet teeth 611, the first rotating body 10 can rotate bidirectionally relative to the second rotating body 20.

In summary, compared with the prior art, the unidirectional transit hinge 100 has at least the following advantages: when the unidirectional transfer hinge 100 is hinged through the first rotating body 10 and the second rotating body 20, the second rotating body 20 is connected with the crown ratchet wheel 60 through the inner shaft 30, and when the second rotating body 20 rotates towards one rotation direction relative to the first rotating body 10, the ratchet teeth 611 of the crown ratchet wheel 60 are clamped and limited by the unidirectional blocking teeth 1211 in the circumferential direction; when the second rotating body 20 rotates towards the other rotation direction relative to the first rotating body 10, the unidirectional blocking teeth 1211 slide relative to the ratchet teeth 611 but are not engaged with the ratchet teeth 611, so that the second rotating body 20 can rotate relative to the first rotating body 10; in addition, when the pressing piece 50 is pressed to push the inner shaft 30 to move towards the second end 32, the crown ratchet 60 fixedly connected with the inner shaft 30 is far away from the unidirectional blocking teeth 1211, so that the ratchet 611 is not limited by circumferential clamping of the unidirectional blocking teeth 1211, and at the moment, the first rotating body 10 can rotate in double rotation directions; it can be seen that the second rotating body 20 of the unidirectional switching hinge 100 can rotate in one rotation direction relative to the first rotating body 10, and when the rotation adjustment in the other rotation direction is required, the bidirectional rotation can be realized by pressing the pressing piece 50, so that the operation is simple and the use is convenient.

In order to better understand the solution of the present utility model by those skilled in the art, the following description will clearly and completely describe the solution of the embodiment of the present utility model with reference to fig. 1 to 5.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 1 and fig. 4, the first rotating body 10 further includes a concave sheet 13, where the first circular tube 11 and the second circular tube 12 are disposed at intervals on an edge of the concave sheet 13, and the concave sheet 13 is used for being connected with an external object to be transferred.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 1 and fig. 4, the second rotating body 20 further includes a protruding sheet 22, and the third circular tube 21 is disposed at a middle position of an edge of the protruding sheet 22, where the protruding sheet 22 is used for connecting with an external object to be transferred.

Further, as a specific implementation manner in some embodiments of the present utility model, the length of the third circular tube body 21 is equal to or smaller than the interval between the first circular tube body 11 and the second circular tube body 12, so that the third circular tube body 21 can be installed between the first circular tube body 11 and the second circular tube body 12.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 2, 4 and 5, an annular flange 121 is convexly disposed on a side of the inner wall of the lumen of the second circular tube body 12, which is close to the third circular tube body 21, and a unidirectional blocking tooth 1211 is disposed on a side of the annular flange 121, which is opposite to the third circular tube body 21, so that the unidirectional blocking tooth 1211 faces the crown ratchet 60 to be capable of being mutually matched.

Further, as shown in fig. 2, 4 and 5, the crown wheel 60 includes a crown wheel 61 and a connecting shaft 62, the crown wheel 61 has a mating surface (not shown), the connecting shaft 62 is fixedly connected to the center of the mating surface of the crown wheel 61, the ratchet teeth 611 are annularly distributed on the mating surface of the crown wheel 61 around the connecting shaft 62, the connecting shaft 62 passes through the annular flange 121 into the third circular tube 21, and the end of the connecting shaft 62 is fixedly connected to the second end 32 of the inner shaft 30.

Further, as shown in fig. 2 to 5, as a specific implementation manner of some embodiments of the present utility model, the elastic member 40 is sleeved on the connecting shaft 62, one end of the elastic member 40 is abutted against the annular flange 121, the other end is abutted against the inner shaft 30, the elastic member 40 is specifically a compression spring, and the elastic member 40 is compressed to apply thrust force towards two sides, so that the inner shaft 30 drives the crown ratchet 60 to move towards the first end 31, and the ratchet 611 on the crown ratchet 60 is abutted against the unidirectional blocking teeth 1211 to cooperate with each other.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 2, 4 and 5, the pressing piece 50 includes a key 51 and a transmission shaft 52, where the key 51 is fixedly installed on the transmission shaft 52 and passes out of the first circular tube 11 for being pressed by a user; the transmission shaft 52 is inserted from the first circular tube 11 into the third circular tube 21 and fixedly connected with the first end 31 of the inner shaft 30.

As will be readily appreciated, when the user presses the key 51 to push the inner shaft 30 through the drive shaft 52 to move toward the second tubular body 12, the elastic member 40 is compressed, and when the user releases the key 51, the elastic member 40 rebounds to reset the inner shaft 30 and the crown ratchet 60.

Further, as a specific implementation of some embodiments of the present utility model, the inner shaft 30 is provided with a first docking groove (not shown) at the first end 31, and a second docking groove (not shown) at the second end 32, and the transmission shaft 52 is fixedly inserted into the first docking groove, and the connection shaft 62 is fixedly inserted into the second docking groove.

Specifically, the inner walls of the first docking groove and the second docking groove are provided with circumferential limiting structures, the transmission shaft 52 and the connecting shaft 62 are respectively inserted into the first docking groove and the second docking groove so as to be fixed with the inner shaft 30 in the radial direction and the circumferential direction, and then are connected through fasteners, and the transmission shaft 52 and the connecting shaft 62 are fixed with the inner shaft 30 in the axial direction.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 3 and fig. 4, the outer surface of the inner shaft 30 is convexly provided with a limiting rib 33, the inner wall of the lumen of the third circular tube 21 is correspondingly provided with a limiting groove 211, the inner shaft 30 is inserted into the lumen of the third circular tube 21, the limiting rib 33 is matched with the limiting groove 211, the inner shaft 30 and the third circular tube 21 are circumferentially fixed, but the inner shaft 30 can axially slide relative to the third circular tube 21 to actively drive the crown ratchet 60 to move.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 2, 4 and 5, the unidirectional switching hinge 100 further includes a first gasket 70 and a second gasket 80, where the first gasket 70 is installed between the first circular tube 11 and the third circular tube 21, and the second gasket 80 is installed between the second circular tube 12 and the third circular tube 21, so that the third circular tube 21 is more closely matched with the first circular tube 11 and the second circular tube 12; when the second rotating body 20 rotates relative to the first rotating body 10, friction force between the third circular tube body 21 and the first circular tube body 11 and the second circular tube body 12 is transferred to the first gasket 70 and the second gasket 80.

Further, as a specific implementation manner in some embodiments of the present utility model, as shown in fig. 5, the unidirectional switching hinge 100 further includes an end cover 90, where the end cover 90 covers an end of the second circular tube 12 away from the third circular tube 21, so as to protect the crown ratchet 60 in the second circular tube 12 and the structure matched with the crown ratchet, so that the unidirectional switching hinge 100 is compact and complete.

The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the scope of the claims of the present utility model.

Claims (10)

1. A unidirectional transit hinge, characterized in that it comprises:

the first rotating body comprises a first circular tube body and a second circular tube body which are mutually fixed and arranged at intervals;

the second rotating body comprises a third circular tube body arranged between the first circular tube body and the second circular tube body;

the inner shaft is fixedly arranged in the third circular tube body in the circumferential direction and is provided with a first end facing the first circular tube body and a second end facing the second circular tube body;

an elastic member mounted in the third circular tube body for applying a force to the inner shaft toward the first end;

the pressing piece is arranged in the first circular tube body, one end of the pressing piece is fixedly connected with the first end, and the other end of the pressing piece penetrates out of the first circular tube body;

the crown-shaped ratchet wheel is arranged in the second circular tube body, one end of the crown-shaped ratchet wheel is fixedly connected with the second end, and a ratchet is arranged on one side of the crown-shaped ratchet wheel, which faces the first end;

wherein, the inner wall of the second round tube body is provided with a one-way gear which is opposite to the ratchet; when the unidirectional blocking teeth are meshed with the ratchets, the first rotating body rotates unidirectionally relative to the second rotating body in a rotation direction, and after the pressing piece is pressed to push the inner shaft to move towards the second end, the unidirectional blocking teeth are disengaged from the ratchets, the first rotating body can rotate bidirectionally relative to the second rotating body.

2. The unidirectional changeover hinge of claim 1, wherein the first rotor further comprises a concave leaf, and the first and second circular tubes are spaced apart on an edge of the concave leaf.

3. The unidirectional changeover hinge of claim 2, wherein the second rotor further comprises a boss sheet, the third circular tube body is disposed at a middle position of an edge of the boss sheet, and a length of the third circular tube body is equal to or smaller than a distance between the first circular tube body and the second circular tube body.

4. The unidirectional changeover hinge of claim 1, wherein the inner wall of the lumen of the second circular tube body is convexly provided with an annular flange on a side close to the third circular tube body, and the unidirectional retaining teeth are arranged on a side of the annular flange facing away from the third circular tube body.

5. The unidirectional changeover hinge of claim 4, wherein the crown ratchet comprises a crown wheel having a mating surface and a connecting shaft fixedly connected at a center of the mating surface, the ratchet teeth are annularly distributed on the mating surface around the connecting shaft, and the connecting shaft passes through the annular flange into the third tubular body and is fixedly connected with the second end of the inner shaft.

6. The unidirectional changeover hinge of claim 5, wherein the elastic member is sleeved on the connecting shaft, one end of the elastic member is abutted against the annular flange, and the other end of the elastic member is abutted against the inner shaft.

7. The unidirectional changeover hinge of claim 5, wherein the pressing piece comprises a key and a transmission shaft, the key is fixedly arranged on the transmission shaft and penetrates out of the first circular tube body, and the transmission shaft penetrates from the first circular tube body to the third circular tube body to be fixedly connected with the first end of the inner shaft.

8. The unidirectional changeover hinge of claim 7, wherein the inner shaft is provided with a first docking slot at the first end and a second docking slot at the second end, the drive shaft is fixedly inserted into the first docking slot, and the connecting shaft is fixedly inserted into the second docking slot.

9. The unidirectional changeover hinge of claim 1, wherein the outer surface of the inner shaft is convexly provided with a limit rib, the inner wall of the lumen of the third circular tube body is correspondingly provided with a limit groove, the inner shaft is inserted into the lumen of the third circular tube body, and the limit rib is mutually matched with the limit groove.

10. The unidirectional changeover hinge of claim 1, further comprising a first gasket mounted between the first round tube and the third round tube and a second gasket mounted between the second round tube and the third round tube;

and/or, the unidirectional transfer hinge further comprises an end cover, and the end cover is covered on one end, far away from the third circular tube, of the second circular tube.

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