Gravity lock catch structure and folding furniture

Abstract

The utility model provides a gravity lock catch structure which comprises a lock catch and a rotating shaft assembly. The lock catch is provided with a limiting piece, and the rotating shaft assembly is provided with a limiting matching piece matched with the limiting piece. When the gravity lock catch structure is placed in a first direction, the lock catch swings to a first position relative to the rotating shaft assembly under the gravity of the lock catch, so that the limiting piece and the limiting matching piece are matched in a limiting mode in the rotating direction of the rotating shaft assembly. And when the gravity lock catch structure is placed in a second direction, the lock catch swings to a second position relative to the rotating shaft assembly under the gravity of the lock catch, so that the limiting piece and the limiting matching piece are released from limiting matching in the rotating direction of the rotating shaft assembly. The utility model further provides folding furniture which comprises a first part, a second part and the gravity lock catch structure.

Description

Technical Field

[0001] The utility model relates to furniture, in particular to furniture with a folding function. Background Art

[0002] Folding table is a table with folding function. Because of its convenient folding and transportation, it is often seen in temporary reception places such as banquets, conferences, exhibitions, etc., and has become an indispensable furniture in hotels, exhibitions and other places.

[0003] The folding tables in the prior art all rely on torsion springs to achieve unfolding and folding. In the unfolded state, the elastic force of the torsion spring keeps the lock against the inner hinge. When folding the table, the lock needs to be pressed to unlock. This structure requires additional operations, and the user needs to use a relatively large force when unlocking. In addition, when the torsion spring releases its elastic force, it is easy to pinch the user's hand, which is very unsafe. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a gravity lock structure, which can realize locking and unlocking of the lock by changing the placement direction.

[0005] In order to solve the above technical problems, the utility model provides a gravity lock structure, including: a lock, a shaft assembly; the lock is provided with a limit piece, and the shaft assembly is provided with a limit matching piece that matches with the limit piece;

[0006] When the gravity lock structure is placed in a first direction, the lock swings to a first position relative to the rotating shaft assembly under its own gravity, so that the limit piece and the limit matching piece are limitedly matched along the direction of rotation of the rotating shaft assembly; when the gravity lock structure is placed in a second direction, the lock swings to a second position relative to the rotating shaft assembly under its own gravity, so that the limit piece and the limit matching piece are released from the limited matching along the direction of rotation of the rotating shaft assembly.

[0007] In a preferred embodiment: the limiting member is a buckle, and the limiting matching member is a groove; when the lock buckle is in the first position, the buckle is placed in the groove; when the lock buckle is in the second position, the buckle is out of the groove.

[0008] In a preferred embodiment: the rotating shaft assembly includes an inner hinge, an outer hinge and a rotating shaft that rotatably connects the inner hinge and the outer hinge.

[0009] In a preferred embodiment: the outer hinge has a cavity for inserting one end of the inner hinge, the side wall of the cavity is provided with a first connecting hole, and one end of the inner hinge is provided with a second connecting hole matching the first connecting hole; the rotating shaft passes through the first connecting hole and the second connecting hole.

[0010] In a preferred embodiment: the inner wall of the cavity is provided with a convex point extending along the thickness direction of the cavity; the outer wall of one end of the inner hinge is provided with a hole matching with the convex point.

[0011] In a preferred embodiment: the holes are divided into two groups, and when the outer hinge is rotated relative to the inner hinge to an unfolded state or a folded state, the protrusions are respectively placed in holes of different groups.

[0012] In a preferred embodiment: the groove is arranged in the portion of the inner hinge at one end thereof which is placed on the outer hinge; and the lock is arranged between the inner walls on both sides of the cavity.

[0013] In a preferred embodiment: the rotating shaft is a bolt and a nut connected to the end of the bolt.

[0014] The utility model also provides a folding furniture, comprising a first part, a second part and the gravity lock structure as described above; the gravity lock structure is used to connect the first part and the second part; when the lock is in a first position, the first part and the second part are in a locked and fixed state; when the lock is in a second position, the first part and the second part are in a relatively rotatable state.

[0015] In a preferred embodiment, the furniture is a table, and the first part and the second part are respectively the table top.

[0016] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0017] The utility model provides a gravity lock buckle structure, which can make the lock buckle swing under the action of its own gravity by changing the placement direction of the gravity lock buckle structure, thereby realizing the switching between the locked state and the unlocked state, so that locking and unlocking can be realized without the user performing additional operations.

[0018] The utility model provides a gravity lock structure, in which the rotating shaft assembly part increases the friction between the outer hinge and the inner hinge through the convex point, so as to achieve the damping effect. When the outer hinge rotates to the unfolded state or the folded state relative to the inner hinge, the convex points are respectively placed in the holes of different groups, so that the damping effect is formed only when the inner hinge rotates relative to the outer hinge. After the rotation is in place, the convex points enter the holes of different groups. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the preferred embodiment of the utility model after being unfolded;

[0020] Figure 2 It is a side view of the preferred embodiment of the utility model after unfolding;

[0021] Figure 3 This is a three-dimensional diagram of the preferred embodiment of the utility model after folding;

[0022] Figure 4 It is a three-dimensional diagram of the gravity lock structure in the preferred embodiment of the utility model when it is placed in the first direction;

[0023] Figure 5 It is a cross-sectional view of the gravity lock structure in the preferred embodiment of the utility model when it is placed in the first direction;

[0024] Figure 6 It is a three-dimensional diagram of the gravity lock structure in the preferred embodiment of the utility model when it is placed in the second direction;

[0025] Figure 7 It is a schematic diagram of the folding of the gravity lock structure in the preferred embodiment of the utility model when it is placed in the second direction;

[0026] Figure 8 A three-dimensional diagram of an external hinge in a preferred embodiment of the utility model;

[0027] Fig. 9 A top view of an outer hinge in a preferred embodiment of the utility model;

[0028] Fig.10 A three-dimensional diagram of an inner hinge in a preferred embodiment of the utility model;

[0029] Fig.11 A top view of the inner hinge in the preferred embodiment of the utility model;

[0030] Fig.12 It is a connection diagram of the inner hinge and the outer hinge in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0034] refer to Figure 1-Figure 12 The present embodiment provides a folding table, comprising a first part 1, a second part 2 and a gravity locking structure 3; in the present embodiment, the first part 1 and the second part 2 are respectively desktops, and the gravity locking structure 3 is used to connect the first part 1 and the second part 2; when the lock 31 of the gravity locking structure 3 is in the first position, the first part 1 and the second part 2 are in a locked and fixed state, at this time, the two desktops are spliced ​​into a whole large desktop, and the entire folding table is in an unfolded state and locked in the unfolded state; when the lock 31 is in the second position, the first part 1 and the second part 2 are in a relatively rotatable state, at this time, the user can make the two desktops approach each other through the relative rotation of the first part 1 and the second part 2, and fold and store the folding table.

[0035] Therefore, the gravity lock buckle structure 3 can realize the lock buckle 31 being located at the first position or the second position by simply changing the placement direction of the gravity lock buckle structure 3. Thus, the locking and unlocking of the gravity lock buckle structure 3 are realized. In this embodiment, the first direction refers to placing the use surface of the desktop with its back to the ground. The second direction refers to placing the use surface of the desktop facing the ground.

[0036] In order to achieve the above-mentioned effects, the gravity lock structure 3 in this embodiment includes: a lock 31 and a shaft assembly 32; the lock 31 is provided with a limiting member 311, and the shaft assembly 32 is provided with a limiting matching member 312 matching with the limiting member 311;

[0037] When the gravity lock buckle structure 3 is placed in a first direction, the lock buckle 31 swings to a first position relative to the rotating shaft assembly 32 under its own weight, so that the position-limiting member 311 and the position-limiting matching member 312 are position-limited and matched along the direction of rotation of the rotating shaft assembly 32; when the gravity lock buckle structure 3 is placed in a second direction, the lock buckle 31 swings to a second position relative to the rotating shaft assembly 32 under its own weight, so that the position-limiting member 311 and the position-limiting matching member 312 are released from position-limiting and matched along the direction of rotation of the rotating shaft assembly 32. In this way, the user can unlock the gravity lock buckle structure 3 by simply turning over the table, and then fold the table for storage by relatively rotating the first part 1 and the second part 2.

[0038] In this embodiment, the position-limiting member 311 is a buckle, and the position-limiting mating member 312 is a groove; when the lock buckle 31 is in the first position, the buckle is placed in the groove; when the lock buckle 31 is in the second position, the buckle is removed from the groove. When the buckle is placed in the groove, if the first part 1 and the second part 2 move relative to each other, the buckle will be limited by the groove to generate a limiting force in the opposite direction of the relative movement, thereby keeping the first part 1 and the second part 2 in a locked and fixed state. When the buckle is removed from the groove, the limiting force disappears, and the first part 1 and the second part 2 are released from the locked and fixed state and can rotate freely.

[0039] In this embodiment, the rotating shaft assembly 32 includes an inner hinge 321, an outer hinge 322, and a rotating shaft that rotatably connects the inner hinge 321 and the outer hinge 322. The outer hinge 322 has a cavity 3221 for inserting one end of the inner hinge 321, a first connecting hole 3222 is provided on the side wall of the cavity 3221, and a second connecting hole 3211 that matches the first connecting hole 3222 is provided at one end of the inner hinge 321; in this embodiment, the rotating shaft is a bolt 323, the bolt 323 passes through the first connecting hole 3222 and the second connecting hole 3211, and a nut 324 is connected to the end of the bolt 323, so that the bolt 323 is fixed in the first connecting hole 3222 and the second connecting hole 3211.

[0040] In this embodiment, the groove is arranged in the part where one end of the inner hinge 321 is placed on the outer hinge 322; the lock buckle 31 is arranged between the inner walls on both sides of the cavity 3221. The lock buckle 31 is connected to the inner walls on both sides of the cavity 3221 through the pin 313, so that the lock buckle 31 can swing relative to the cavity 3221. As long as the area of ​​the cavity 3221 is set larger than the area of ​​the lock buckle 31, a swinging space can be provided for the lock buckle 31, thereby changing the placement direction, and the lock buckle 31 can swing and change its position under the drive of gravity.

[0041] In addition, in order to increase the friction force when the inner hinge 321 and the outer hinge 322 rotate to achieve the effect of damping the rotation, the inner wall of the cavity 3221 is provided with a protrusion 3223 extending along the thickness direction of the cavity 3221; the gap between the two protrusions 3223 is smaller than the thickness of one end of the inner hinge 321, so that during the rotation of the inner hinge 321 relative to the outer hinge 322, the protrusion 3223 will be squeezed with the outer wall of the inner hinge 321 and then generate friction, thereby achieving the effect of damping the rotating shaft.

[0042] In addition, the outer wall of one end of the inner hinge 321 is provided with a hole 3212 that matches the convex point 3223, wherein the holes 3212 are divided into two groups, and when the outer hinge 322 rotates relative to the inner hinge 321 to an unfolded state or a folded state, the convex points 3223 are respectively placed in different groups of holes 3212. In this way, the damping effect is formed only when the inner hinge 321 rotates relative to the outer hinge 322, and after the rotation is in place, the convex points 3223 enter the holes 3212 of different groups to achieve positioning and matching.

[0043] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A gravity lock structure, characterized in that include: Lock buckle, rotating shaft assembly; the lock buckle is provided with a limiting member, and the rotating shaft assembly is provided with a limiting matching member that matches with the limiting member; When the gravity lock structure is placed in a first direction, the lock swings to a first position relative to the rotating shaft assembly under its own gravity, so that the limit piece and the limit matching piece are limitedly matched along the direction of rotation of the rotating shaft assembly; when the gravity lock structure is placed in a second direction, the lock swings to a second position relative to the rotating shaft assembly under its own gravity, so that the limit piece and the limit matching piece are released from the limited matching along the direction of rotation of the rotating shaft assembly.

2. A gravity lock structure according to claim 1, characterized in that: The limiting member is a buckle, and the limiting matching member is a groove; when the lock buckle is located at a first position, the buckle is placed in the groove; when the lock buckle is located at a second position, the buckle is disengaged from the groove.

3. A gravity lock structure according to claim 2, characterized in that: The rotating shaft assembly comprises an inner hinge, an outer hinge and a rotating shaft which rotatably connects the inner hinge and the outer hinge.

4. A gravity lock structure according to claim 3, characterized in that: The outer hinge has a cavity for inserting one end of the inner hinge, the side wall of the cavity is provided with a first connecting hole, and one end of the inner hinge is provided with a second connecting hole matching the first connecting hole; the rotating shaft passes through the first connecting hole and the second connecting hole.

5. A gravity lock structure according to claim 4, characterized in that: The inner side wall of the cavity is provided with a convex point extending along the thickness direction of the cavity; the outer wall of one end of the inner hinge is provided with a hole matching with the convex point.

6. A gravity lock structure according to claim 5, characterized in that: The holes are divided into two groups, and when the outer hinge is rotated relative to the inner hinge to an unfolded state or a folded state, the protrusions are respectively placed in holes of different groups.

7. A gravity lock structure according to claim 4, characterized in that: The groove is arranged in a portion of the inner hinge at one end thereof which is placed on the outer hinge; and the lock is arranged between the inner walls on both sides of the cavity.

8. The gravity lock structure according to claim 3, characterized in that: The rotating shaft is a bolt and a nut connected to the end of the bolt.

9. A folding furniture, characterized in that It comprises a first part and a second part and the gravity locking structure as described in any one of claims 1 to 8; the gravity locking structure is used to connect the first part and the second part; when the locking catch is in a first position, the first part and the second part are in a locked and fixed state; when the locking catch is in a second position, the first part and the second part are in a relatively rotatable state.

10. The folding furniture according to claim 9, characterized in that: The furniture is a table, and the first part and the second part are respectively the table tops.

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