Hinge structure capable of being locked in one direction

Abstract

The utility model provides a hinge structure capable of being locked unidirectionally, which comprises a first rotating part, a second rotating part and a unidirectionally rotating component, and the unidirectionally rotating component is used for limiting the rotating state of the second rotating part so that the second rotating part can do unidirectionally rotating action relative to the first rotating part or release the limitation on the second rotating part. Therefore, the first rotating piece and the second rotating piece can rotate freely. By designing the one-way rotating assembly, a user can operate the one-way rotating assembly to limit the rotating state of the second rotating piece, so that the second rotating piece can only do one-way rotating action relative to the first rotating piece. Meanwhile, the user can also operate the one-way rotating assembly to relieve the limitation on the rotating state of the second rotating piece, so that the first rotating piece and the second rotating piece can rotate freely. The hinge structure not only can realize one-way locking, but also can unlock the locking state, and is simple in overall structure, convenient to operate and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of hinged mechanisms, in particular to a hinged structure capable of being locked in one direction. Background Art

[0002] In daily life, hinged mechanisms can be seen everywhere, and they have the advantages of simple structure and convenient assembly and disassembly. Existing hinged mechanisms generally do not have a locking function, so the two parts are usually movably connected after being hinged. If the two parts need to be locked, other mechanisms or devices are needed to achieve this.

[0003] In some daily life scenarios, two hinged parts may be temporarily set so that one or both parts can only rotate in one direction around the hinge axis. For example, if the part can only rotate in the clockwise direction, then the part cannot rotate in the counterclockwise direction. Therefore, a hinge structure with a one-way locking function is proposed. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a hinge structure that can be locked in one direction, so as to realize the one-way locking function and release the locked state.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a one-way lockable hinge structure, including a first rotating member; a second rotating member, rotatably connected to the first rotating member; and a one-way rotation component, used to limit the rotation state of the second rotating member so that the second rotating member can perform a one-way rotation movement relative to the first rotating member, or to release the restriction on the second rotating member so that the first rotating member and the second rotating member can perform free rotation movement.

[0006] Preferably, the one-way rotating component includes a one-way rotating part and an operating rod; the one-way rotating part is arranged on the first rotating part, the operating rod is passed through the one-way rotating part and can rotate with the one-way rotating part, and the operating rod can move along the rotation axis direction of the one-way rotating part; the second rotating part is slidably connected to the operating rod and has no relative rotation with the operating rod.

[0007] Preferably, the operating rod comprises a first connecting portion and a rotation-stopping portion which are connected to each other, the first connecting portion cooperates with the one-way rotating member, and the rotation-stopping portion cooperates with the second rotating member.

[0008] Preferably, a tapered guide portion is provided between the first connecting portion and the anti-rotation portion.

[0009] Preferably, a second connecting portion is provided between the conical guiding portion and the anti-rotation portion, the outer diameter of the second connecting portion is smaller than the outer diameter of the first connecting portion, and the second connecting portion is movably connected to the first rotating member.

[0010] Preferably, the outer diameter of the second connecting portion is equal to the diameter of the circumscribed circle of the anti-rotation portion.

[0011] Preferably, a limit head is provided at one end of the anti-rotation part away from the first connecting part; the one-way rotation component also includes a reset member, which is arranged outside the anti-rotation part, and the two ends of the reset member respectively abut the limit head and the second rotating part, and the reset member is used to apply elastic force to the operating rod to prevent the first connecting part from being separated from the one-way rotating part.

[0012] Preferably, the one-way rotating assembly further comprises a pull rope, and the pull rope is connected to the operating rod.

[0013] Preferably, a support frame is provided on the first rotating member, the pull rope passes through the support frame, and a limiting flange is provided on the pull rope, and the limiting flange can abut against a side of the support frame away from the operating rod.

[0014] Beneficial effects of the utility model:

[0015] The utility model discloses a hinge structure capable of one-way locking. By designing a one-way rotating component, a user can operate the one-way rotating component to limit the rotation state of a second rotating member, so that the second rotating member can only perform one-way rotation relative to a first rotating member. At the same time, the user can also operate the one-way rotating component to release the restriction on the rotation state of the second rotating member, so that the first rotating member and the second rotating member can perform free rotation. The hinge structure can achieve one-way locking and release the locking state. It has a simple overall structure, convenient operation, a wide range of applications, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 A schematic structural diagram of a one-way lockable hinge structure provided in one embodiment of the utility model;

[0018] Figure 2 It is a partial schematic diagram of a one-way rotating component;

[0019] Figure 3is a schematic diagram of the structure of the operating lever;

[0020] Figure 4 It is a structural schematic diagram of the first connecting part being separated from the one-way rotating member;

[0021] Figure 5 It is a structural schematic diagram of the first connecting part being clamped into the one-way rotating member;

[0022] Figure 6 is a schematic structural diagram of a second rotating member;

[0023] Figure 7 It is a schematic diagram of the structure of the support frame and the pull rope;

[0024] Figure 8 is a side view of the hinged structure;

[0025] Fig. 9 It is a structural schematic diagram of a one-way rotating member;

[0026] Reference numerals:

[0027] 10. First rotating member; 11. First side plate; 12. Second side plate; 20. Second rotating member; 21. Third side plate; 22. Fourth side plate; 221. Second through hole; 30. One-way rotating assembly; 31. One-way rotating member; 32. Operating rod; 321. First connecting portion; 322. Stopping portion; 323. Conical guide portion; 324. Second connecting portion; 325. Limiting head; 33. Resetting member; 34. Pull rope; 341. Limiting flange; 40. Support frame; 50. Rotating shaft. DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0029] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0032] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] like Figure 1-9As shown, in one embodiment of the utility model, a hinge structure capable of one-way locking is provided, comprising a first rotating member 10, a second rotating member 20 and a one-way rotating assembly 30, wherein the first rotating member 10 and the second rotating member 20 are both groove-shaped structures, the first rotating member 10 comprises two connected first side plates 11 and second side plates 12, and the second rotating member 20 comprises two connected third side plates 21 and fourth side plates 22. Among them, the first side plate 11 and the third side plate 21 are rotatably connected through a rotating shaft 50, and the second side plate 12 and the fourth side plate 22 are connected through a one-way rotating assembly 30, and the one-way rotating assembly 30 coincides with the rotation axis of the rotating shaft 50. The one-way rotating assembly 30 is used to limit the rotation state of the fourth side plate 22, so that the second rotating member 20 can perform a one-way rotation relative to the first rotating member 10, or to release the restriction on the fourth side plate 22, so that the first rotating member 10 and the second rotating member 20 can perform a free rotation.

[0035] See also Figure 8 When the one-way rotating assembly 30 limits the rotation state of the fourth side plate 22, the user can only rotate the second rotating member 20 in one direction (for example, Figure 8 At the angle shown, the second rotating member 20 can only be rotated clockwise, but not counterclockwise. When the user operates the one-way rotating assembly 30 to release the restriction on the fourth side plate 22, the user can make the first rotating member 10 and the second rotating member 20 rotate freely.

[0036] The present embodiment discloses a one-way lockable hinge structure, which is designed with a one-way rotating component 30. The user can operate the one-way rotating component 30 to limit the rotation state of the second rotating member 20, so that the second rotating member 20 can only perform one-way rotation relative to the first rotating member 10. At the same time, the user can also operate the one-way rotating component 30 to release the restriction on the rotation state of the second rotating member 20, so that the first rotating member 10 and the second rotating member 20 can perform free rotation. The hinge structure can achieve one-way locking and release the locking state. It has a simple overall structure, convenient operation, and a wide range of applications. For example, it can be used in scenes such as adjustable table tops of study tables, side doors, doors and windows, and is suitable for promotion.

[0037] Specifically, the one-way rotating assembly 30 includes a one-way rotating member 31 and an operating rod 32, and the rotation axes of the one-way rotating member 31, the operating rod 32 and the rotating shaft 50 coincide with each other. The one-way rotating member 31 is fixedly mounted on the second side plate 12 of the first rotating member 10, the operating rod 32 is inserted into the one-way rotating member 31 and can rotate with the one-way rotating member 31, and the operating rod 32 can move along the rotation axis direction of the one-way rotating member 31. The fourth side plate 22 of the second rotating member 20 is slidably connected to the operating rod 32, and has no relative rotation with the operating rod 32.

[0038] See also Fig. 9The one-way rotating member 31 uses a one-way needle roller bearing. The one-way needle roller bearing is a prior art and will not be described in detail in this embodiment.

[0039] When the operating rod 32 is inserted into the one-way rotating member 31 (pressing against the roller needle), the operating rod 32 can only perform one-way rotation in the one-way rotating member 31. Since the fourth side plate 22 of the second rotating member 20 is slidably connected to the operating rod 32 and has no relative rotation with the operating rod 32, the user can only rotate the second rotating member 20 in one direction (the second rotating member 20 will also drive the operating rod 32 to perform one-way rotation in the one-way rotating member 31).

[0040] When the user pulls the operating rod 32 out of the one-way rotating member 31, the operating rod 32 still slides with the fourth side plate 22 of the second rotating member 20 and there is no relative rotation connection. At this time, the one-way rotating component 30 releases the restriction on the fourth side plate 22, and the user can make the first rotating member 10 and the second rotating member 20 rotate freely.

[0041] In one embodiment, the operating rod 32 includes a first connecting portion 321 and a stop portion 322, wherein the first connecting portion 321 cooperates with the one-way rotating member 31, and the stop portion 322 cooperates with the fourth side plate 22 of the second rotating member 20. In this embodiment, the first connecting portion 321 is a cylindrical structure, and the cross section of the stop portion 322 (perpendicular to the axis of the first connecting portion 321) is non-circular (non-circular can be a regular or irregular shape such as a triangle, a quadrilateral, a polygon, etc.), and the outer diameter of the first connecting portion 321 is greater than the diameter of the circumscribed circle of the stop portion 322. In the process of inserting the first connecting portion 321 into the one-way rotating member 31, each roller inside the one-way rotating member 31 will be pushed, thereby achieving a tight hold on the first connecting portion 321, so that the first connecting portion 321 and the stop portion 322 can only perform a one-way rotation action.

[0042] The second side plate 12 is provided with a first through hole for the anti-rotation portion 322 to pass through, and the fourth side plate 22 is provided with a second through hole 221 that cooperates with the anti-rotation portion 322. Since the cross-section of the anti-rotation portion 322 is non-circular, when the user pulls out or inserts the operating rod 32, the anti-rotation portion 322 and the second through hole 221 slide and there is no relative rotation. Therefore, when the first connecting portion 321 cooperates with the one-way rotating member 31, when the user unidirectionally rotates the second rotating member 20, the first connecting portion 321 will be driven to perform a unidirectional rotation action in the one-way rotating member 31.

[0043] In one embodiment, a conical guide portion 323 is provided between the first connection portion 321 and the rotation-stopping portion 322, the large diameter end of the conical guide portion 323 is connected to the first connection portion 321, and the small diameter end of the conical guide portion is connected to the rotation-stopping portion 322. The design of the conical guide portion 323 facilitates the first connection portion 321 to be quickly inserted into the one-way rotating member 31, thereby ensuring the quick connection between the first connection portion 321 and the one-way rotating member 31.

[0044] In one embodiment, a second connecting portion 324 is provided between the conical guide portion 323 and the stop portion 322, the outer diameter of the second connecting portion 324 is smaller than the outer diameter of the first connecting portion 321, the second connecting portion 324 is movably connected to the first rotating member 10, and the outer diameter of the second connecting portion 324 is equal to the diameter of the circumscribed circle of the stop portion 322.

[0045] The second connection part 324 is a cylindrical structure, the first through hole is a circular hole, the outer diameter of the second connection part 324 is equal to the inner diameter of the first through hole, the second connection part 324 is rotatably matched with the first through hole, and can be separated from the first through hole. Since the outer diameter of the second connection part 324 is equal to the diameter of the circumscribed circle of the anti-rotation part 322, when the first connection part 321 is pulled out of the one-way rotating member 31, the anti-rotation part 322 will also move into the first through hole, so that the coaxiality of the first through hole and the second through hole 221 can still be ensured during the movement of the operating rod 32.

[0046] In one embodiment, a limit head 325 is provided at one end of the stop portion 322 away from the first connecting portion 321, and the one-way rotating component 30 also includes a reset member 33, which is sleeved outside the stop portion 322, and the two ends of the reset member 33 respectively abut the limit head 325 and the fourth side plate 22, and the reset member 33 is used to apply elastic force to the operating rod 32 to prevent the first connecting portion 321 from detaching from the one-way rotating component 31.

[0047] The reset member 33 is a spring, and when the user pulls out the first connection part 321, the stopper 325 moves toward the fourth side plate 22, and cooperates with the fourth side plate 22 to compress the reset member 33. When the first connection part 321 is released, the reset member 33 quickly pushes the stopper 325, so that the first connection part 321 is re-engaged in the one-way rotating member 31, and the first connection part 321 is matched with the one-way rotating member 31.

[0048] In one embodiment, the one-way rotating assembly 30 further includes a pull rope 34, which is connected to the end of the first connecting portion 321. By pulling the pull rope 34, the user can drive the first connecting portion 321 to disengage from the one-way rotating member 31, so as to realize the free rotation of the first rotating member 10 and the second rotating member 20.

[0049] In one embodiment, a support frame 40 is fixedly mounted on the first rotating member 10, and a pull rope 34 passes through the support frame 40. A limiting flange 341 is provided on the pull rope 34. When the first connecting portion 321 is inserted into the one-way rotating member 31, the limiting flange 341 abuts against the side of the support frame 40 away from the operating rod 32, and the pull rope 34 is in a taut state. In this way, when the user pulls the pull rope 34, the operating rod 32 will be directly pulled.

[0050] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A one-way lockable hinge structure, characterized in that: include: A first rotating member (10); a second rotating member (20) rotatably connected to the first rotating member (10); as well as The one-way rotating component (30) is used to limit the rotation state of the second rotating member (20) so that the second rotating member (20) can perform a one-way rotation relative to the first rotating member (10), or to release the restriction on the second rotating member (20) so that the first rotating member (10) and the second rotating member (20) can perform a free rotation.

2. The one-way lockable hinge structure according to claim 1, characterized in that: The one-way rotating assembly (30) comprises a one-way rotating member (31) and an operating rod (32); The one-way rotating member (31) is arranged on the first rotating member (10), the operating rod (32) is inserted into the one-way rotating member (31) and can rotate with the one-way rotating member (31), and the operating rod (32) can move along the rotation axis (50) of the one-way rotating member (31); The second rotating member (20) is slidably connected to the operating rod (32) and does not rotate relative to the operating rod (32).

3. The one-way lockable hinge structure according to claim 2, characterized in that: The operating rod (32) comprises a first connecting portion (321) and a rotation-stopping portion (322) which are connected to each other. The first connecting portion (321) cooperates with the one-way rotating member (31), and the rotation-stopping portion (322) cooperates with the second rotating member (20).

4. The one-way lockable hinge structure according to claim 3, characterized in that: A tapered guide portion (323) is provided between the first connecting portion (321) and the anti-rotation portion (322).

5. The one-way lockable hinge structure according to claim 4, characterized in that: A second connecting portion (324) is provided between the conical guiding portion (323) and the anti-rotation portion (322); the outer diameter of the second connecting portion (324) is smaller than the outer diameter of the first connecting portion (321); and the second connecting portion (324) is movably connected to the first rotating member (10).

6. The one-way lockable hinge structure according to claim 5, characterized in that: The outer diameter of the second connecting portion (324) is equal to the diameter of the circumscribed circle of the anti-rotation portion (322).

7. The one-way lockable hinge structure according to any one of claims 3 to 6, characterized in that: A limiting head (325) is provided at one end of the anti-rotation portion (322) away from the first connecting portion (321); The one-way rotating assembly (30) further comprises a reset member (33), wherein the reset member (33) is sleeved outside the anti-rotation portion (322), and two ends of the reset member (33) respectively abut against the limit head (325) and the second rotating member (20), and the reset member (33) is used to apply elastic force to the operating rod (32) to prevent the first connecting portion (321) from being separated from the one-way rotating member (31).

8. The one-way lockable hinge structure according to claim 2, characterized in that: The one-way rotating assembly (30) further comprises a pull rope (34), wherein the pull rope (34) is connected to the operating rod (32).

9. The one-way lockable hinge structure according to claim 8, characterized in that: A support frame (40) is provided on the first rotating member (10), the pull rope (34) passes through the support frame (40), and a limiting flange (341) is provided on the pull rope (34), and the limiting flange (341) can abut against a side of the support frame (40) away from the operating rod (32).

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