Detachable hinge structure and sofa

Abstract

The utility model relates to the technical field of living furniture, and particularly discloses a detachable hinge structure and a sofa, the detachable hinge structure comprises a hinge assembly, the hinge assembly comprises a fixed base, a connecting rod piece with one end hinged to the fixed base, a rotating base hinged to the other end of the connecting rod piece, and a deflector rod assembly installed on the rotating base; the detachable connecting piece is respectively connected with the rotating base and the driving lever assembly in a clamping manner; wherein the deflector rod assembly has a locking state in which the deflector rod assembly is clamped with the detachable connecting piece so as to limit the detachable connecting piece to be separated from the rotating base; and the unlocking state is driven to be separated from the detachable connecting piece so as to release the limit between the detachable connecting piece and the rotating base. The detachable hinge structure and the sofa provided by the utility model can effectively solve the problem that the backrest part and the sitting part of the existing sofa cannot have two functions of relative rotation and detachability at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of living furniture, in particular to a detachable hinge structure and a sofa. Background Art

[0002] Many sofas use hinges to hinge the backrest of the sofa to the seating part of the sofa. Although the hinges realize the rotational connection between the backrest and the seating part, the hinges are usually fixed to the backrest and the seating part by fastening bolts, and the hinges themselves are not removable. Therefore, the backrest and the seating part of the existing sofas cannot be disassembled. When the sofa needs to be moved, the backrest and the seating part can only be moved as a whole, which requires a lot of effort. This brings a lot of inconvenience to the manufacturer's packaging and transportation and the user's daily use.

[0003] Therefore, it is necessary to improve the existing sofa to solve the problem that the backrest and the seating part thereof cannot have both the relative rotation and detachable functions.

[0004] The above information disclosed in this Background section is included only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not form the prior art that is currently known to a person of ordinary skill in the art. Utility Model Content

[0005] One purpose of the utility model is to provide a detachable hinge structure and a sofa, which can effectively solve the problem that the backrest and the seating part of the existing sofa cannot have both the functions of relative rotation and detachability.

[0006] To achieve the above objectives, on the one hand, the utility model provides a detachable hinge structure, comprising:

[0007] A hinge assembly, the hinge assembly comprising a fixed base, a connecting rod having one end hinged to the fixed base, a rotating base hinged to the other end of the connecting rod, and a lever assembly mounted on the rotating base;

[0008] A detachable connecting piece, the detachable connecting piece is respectively connected to the rotating base and the lever assembly;

[0009] The lever assembly has a locking state that is engaged with the detachable connecting member to limit the detachable connecting member from being separated from the rotating base; and an unlocking state that is separated from the detachable connecting member after being driven to release the limit between the detachable connecting member and the rotating base.

[0010] Optionally, the detachable connecting member is provided with a first slot for being engaged with the rotating base, and a second slot for being engaged with the lever assembly.

[0011] Optionally, at a position of the rotary base corresponding to the first card slot, a lateral limiting post is provided that is snapped into the first card slot.

[0012] Optionally, the lever assembly includes:

[0013] An elastic lever, which is used to be snapped into the second card slot to limit the detachable connecting member from detaching from the rotary base;

[0014] A lever pressing plate, which is fixedly arranged on the rotary base and is used to cooperate with the rotary base to press and fix one end of the elastic lever.

[0015] Optionally, the lever pressing plate is provided with a strip-shaped limiting slot through which the middle part of the elastic lever passes and is used to limit the deformation stroke of the elastic lever.

[0016] Optionally, the other end of the elastic lever far from it is curled into an annular structure.

[0017] Optionally, the number of the connecting rods is two, and the two connecting rods are arranged in parallel.

[0018] Optionally, the detachable connecting member is provided with a longitudinal positioning hole;

[0019] The rotary base is provided with a longitudinal limiting post inserted into the longitudinal positioning hole.

[0020] Optionally, the longitudinal limiting post and the longitudinal positioning hole are in clearance fit.

[0021] On the other hand, a sofa is provided, which includes any one of the detachable hinge structures, a seating part connected to the fixed base of the detachable hinge structure, and a backrest part connected to the detachable connecting member of the detachable hinge structure.

[0022] The beneficial effects of the present utility model are as follows: A detachable hinge structure and a sofa are provided. The fixed base is installed on the seating part, and the detachable connecting member is installed on the backrest part:

[0023] When it is necessary to rotatably install the backrest part on the seating part, the detachable connecting member is respectively snapped onto the rotary base and the lever assembly. At this time, the lever assembly is in a locked state of being snapped onto the detachable connecting member, which can effectively limit the detachable connecting member from detaching from the rotary base. Therefore, the backrest part can rotate relative to the seating part through the rotational action between the fixed base and the rotary base and the connecting rods;

[0024] When the backrest portion needs to be disassembled, the lever assembly is first moved to release the clamping relationship between the lever assembly and the detachable connecting piece. At this time, the limit between the detachable connecting piece and the rotating base is also released, so the detachable connecting piece can be directly disassembled from the rotating base, thereby completing the disassembly operation between the backrest portion and the seating portion.

[0025] Therefore, the detachable hinge structure and sofa provided by the utility model can effectively solve the problem that the backrest and the seating part of the existing sofa cannot have both the functions of relative rotation and detachability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 A structural schematic diagram of a sofa provided in an embodiment;

[0028] Figure 2 A schematic diagram of a detachable hinge structure provided in an embodiment in an unlocked state;

[0029] Figure 3 A schematic diagram of a detachable hinge structure provided in an embodiment in a locked state.

[0030] In the figure:

[0031] 100, seating part; 200, backrest; 300, detachable hinge structure;

[0032] 1. Hinge assembly;

[0033] 101. Fixed base;

[0034] 102. Connecting rod;

[0035] 103, rotating base; 1031, horizontal limiting column; 1032, longitudinal limiting column;

[0036] 104, lever assembly; 1041, elastic lever; 1041a, annular structure; 1042, lever pressure plate; 1042a, strip-shaped limiting groove;

[0037] 2. Removable connector; 201. First slot; 202. Second slot; 203. Longitudinal positioning hole. DETAILED DESCRIPTION

[0038] In the present utility model, the mention of "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present utility model. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present utility model, as long as there is no technical contradiction or conflict, the various technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0039] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which the present utility model belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present utility model.

[0040] In the description of the present utility model, the phrase "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " herein generally represents an "or" logical relationship between the associated objects before and after.

[0041] In the present utility model, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary or sequential relationship, etc. between these entities or operations.

[0042] Without further limitation, in the present utility model, the expressions such as "include", "comprise", "have" or other similar expressions used in the statement are intended to cover non-exclusive inclusion. These expressions do not exclude that there may be additional elements in the process, method or product including the said elements, so that the process, method or product including a series of elements may not only include those defined elements, but also include other elements not explicitly listed, or also include elements inherent to this process, method or product.

[0043] The same as the understanding in the "Examination Guidelines", in the present utility model, expressions such as "greater than", "less than", "exceeding" are understood as not including the number itself; expressions such as "above", "below", "within" are understood as including the number itself. In addition, in the description of the embodiments of the present utility model, the meaning of "a plurality of" is two or more (including two), and similar expressions related to "many" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise specifically defined.

[0044] In the description of the embodiments of the present invention, the space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present invention or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0045] Unless otherwise expressly specified or limited, in the description of the embodiments of the present utility model, the terms "install", "connect", "connect", "fix", "set" and the like used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication 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 those skilled in the technical field of the present utility model, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0046] The utility model provides a detachable hinge structure and a sofa, which are suitable for application scenarios of connecting a seating part and a backrest, and can effectively solve the problem that the backrest and the seating part of the existing sofa cannot have both the functions of relative rotation and detachability.

[0047] See also Figure 1 In this embodiment, the sofa includes a detachable hinge structure 300 , a seating portion 100 , and a backrest portion 200 .

[0048] Further, see Figure 2 The detachable hinge structure 300 includes a hinge assembly 1 and a detachable connector 2. The hinge assembly 1 includes a fixed base 101 for mounting and fixing to the seating portion 100, a connecting rod 102 having one end hinged to the fixed base 101, a rotating base 103 hinged to the other end of the connecting rod 102, and a lever assembly 104 mounted on the rotating base 103. The detachable connector 2 is used to be mounted and fixed to the backrest portion 200, and the detachable connector 2 is respectively engaged with the rotating base 103 and the lever assembly 104.

[0049] The lever assembly 104 is engaged with the detachable connector 2 to prevent the detachable connector 2 from being separated from the locking state of the rotating base 103 (eg, Figure 3and having a state of being driven to disengage from the detachable connecting member 2 to release the limit between the detachable connecting member 2 and the rotating base 103 (as shown); Figure 2 as shown).

[0050] The detachable hinge structure 300 and the sofa provided in this embodiment are characterized in that the fixed base 101 is installed on the seating portion 100 and the detachable connecting member 2 is installed on the backrest portion 200:

[0051] When the backrest 200 needs to be rotatably mounted on the seating portion 100, the detachable connecting member 2 is engaged with the rotating base 103 and the lever assembly 104 respectively. At this time, the lever assembly 104 is in a locked state engaged with the detachable connecting member 2, which can effectively prevent the detachable connecting member 2 from being separated from the rotating base 103. Therefore, the backrest 200 can be rotated relative to the seating portion 100 through the rotation between the fixed base 101 and the rotating base 103 and the connecting rod 102.

[0052] When the backrest portion 200 needs to be disassembled, the lever assembly 104 is first moved to release the clamping relationship between the lever assembly 104 and the detachable connecting member 2. At this time, the limit between the detachable connecting member 2 and the rotating base 103 is also released, so the detachable connecting member 2 can be directly removed from the rotating base 103, thereby completing the disassembly operation between the backrest portion 200 and the seating portion 100.

[0053] Therefore, the detachable hinge structure 300 and the sofa provided by the present invention can effectively solve the problem that the backrest 200 and the seating part 100 of the existing sofa cannot have both the functions of relative rotation and detachability.

[0054] It should be noted that, since the connecting rod 102 has a certain length, when the backrest portion 200 rotates relative to the seating portion 100, it not only undergoes rotational displacement relative to the seating portion 100, but also undergoes certain translational displacement relative to the seating portion 100. Furthermore, the translational displacement has the following functions and advantages in sofa design:

[0055] ① Translation displacement allows the sofa backrest to not only rotate 200 points, but also move horizontally, so that the space between the various parts of the sofa can be adjusted more flexibly to meet the comfort needs of different users;

[0056] ②Through translational displacement, the backrest can be more accurately positioned on the user's back to provide better support;

[0057] ③ The translation displacement makes it easier to separate the sofa backrest from the seat 100%, so that when cleaning and maintaining the sofa, it is easier to reach the areas that are usually difficult to clean;

[0058] ④ Translation displacement can make the sofa smoother when rotating, without generating excessive friction or resistance due to simple rotation, thus improving the user experience;

[0059] ⑤ For small apartments or environments with limited space, translation displacement can help the sofa to be better stored when not in use. For example, the backrest 200 can be translated to below the seating part 100, thereby saving space;

[0060] ⑥ Translational displacement can bring more functionality to sofa design. For example, it can be designed as a multi-functional sofa bed, and the conversion between different functions can be achieved by translating and rotating the backrest.

[0061] In this embodiment, the detachable connecting member 2 is provided with a first slot 201 for engaging with the rotating base 103 , and a second slot 202 for engaging with the lever assembly 104 .

[0062] Correspondingly, the rotating base 103 is provided with a transverse limiting column 1031 which is inserted into the first slot 201 at a position corresponding to the first slot 201. The transverse limiting column 1031 can limit the vertical direction between the detachable connector 2 and the rotating base 103.

[0063] The lever assembly 104 includes an elastic lever 1041 and a lever pressing plate 1042. The elastic lever 1041 is used to be inserted into the second slot 202 to limit the detachable connector 2 from being separated from the rotating base 103; the lever pressing plate 1042 is fixed on the rotating base 103 to cooperate with the rotating base 103 to press and fix one end of the elastic lever 1041.

[0064] Optionally, the lever pressing plate 1042 is provided with a strip-shaped limiting groove 1042a for the middle part of the elastic lever 1041 to pass through and for limiting the deformation stroke of the elastic lever 1041. When the elastic lever 1041 is moved, it can only be moved within the strip-shaped limiting groove 1042a, so as to avoid excessive movement of the elastic lever 1041, which may damage the elastic lever 1041 and make it unable to restore the deformation spontaneously.

[0065] Furthermore, the other end of the elastic lever 1041 is bent into a ring structure 1041a, so as to increase the force-bearing area available for shifting, improve the convenience of operation and the comfort of the user when shifting the lever.

[0066] In this embodiment, the detachable connecting member 2 is provided with a longitudinal positioning hole 203; the rotating base 103 is provided with a longitudinal limiting post 1032 inserted into the longitudinal positioning hole 203. After the longitudinal limiting post 1032 is inserted into the longitudinal positioning hole 203, the horizontal limiting between the rotating base 103 and the detachable connecting member 2 can be achieved.

[0067] For the detachable hinge structure 300 provided in this embodiment, the detailed disassembly process is as follows:

[0068] S10: First, toggle the elastic lever 1041 so that the elastic lever 1041 disengages from the second card slot 202;

[0069] S20: Then, with the lateral limiting post 1031 as the axis, slightly rotate the detachable connecting member 2 upward so that the longitudinal limiting post 1032 disengages from the longitudinal positioning hole 203;

[0070] In this step, it should be noted that:

[0071] If the longitudinal limiting post 1032 is too long, it may affect the upward rotation of the detachable connecting member 2 with the lateral limiting post 1031 as the axis. Therefore, the length of the longitudinal limiting post 1032 should not be too long. Optionally, when the lever assembly 104 is in the locked state, the top surface of the longitudinal limiting post 1032 is flush with the top surface of the detachable connecting member 2, or the top surface of the longitudinal limiting post 1032 is slightly lower than the top surface of the detachable connecting member 2;

[0072] Furthermore, in order to avoid interference between the longitudinal positioning hole 203 and the longitudinal limiting post 1032, resulting in the inability of the detachable connecting member 2 to rotate upward with the lateral limiting post 1031 as the axis, the longitudinal limiting post 1032 and the longitudinal positioning hole 203 can also be in clearance fit to provide a certain relative movement space between the longitudinal positioning hole 203 and the longitudinal limiting post 1032.

[0073] S30: When the longitudinal limiting post 1032 completely disengages from the longitudinal positioning hole 203, directly take out the detachable connecting member 2 upward so that the lateral limiting post 1031 disengages from the first card slot 201.

[0074] In this embodiment, the number of the connecting rods 102 is two, and the two connecting rods 102 are arranged in parallel. The two connecting rods 102 can provide more stable support. Compared with a single connecting rod 102, the double-connecting-rod design can better disperse pressure and load, reduce the burden on a single connecting rod 102, thereby improving the stability and durability of the entire sofa structure. During the use of the sofa, the double-connecting-rod design can prevent the connecting rod 102 from being distorted due to unilateral force, ensuring that the structure and function of the sofa remain in good condition for a long time.

[0075] In summary, the detachable hinge structure 300 and the sofa provided in this embodiment have at least the following advantages:

[0076] ① The detachable connector 2 is respectively connected with the rotating base 103 and the lever assembly 104, and the lever assembly 104 has a locking state and an unlocking state, so as to realize the convenient connection and disassembly of the backrest 200 and the seating part 100. The unique design of the detachable connector 2 and the hinge assembly 1 effectively solves the problem that the backrest 200 and the seating part 100 of the existing sofa cannot take into account the two functions of relative rotation and detachability, making the sofa more flexible in use and maintenance, and meeting the needs of users in different scenarios;

[0077] ② When the backrest portion 200 rotates relative to the seat portion 100, a translation displacement will occur. This technical design has many advantages;

[0078] ③ Through a simple toggle operation, the user can easily unlock the detachable connector 2, making the disassembly and assembly process faster and improving work efficiency.

[0079] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A detachable hinge structure, characterized in that: include: A hinge assembly (1), the hinge assembly (1) comprising a fixed base (101), a connecting rod (102) having one end hinged to the fixed base (101), a rotating base (103) hinged to the other end of the connecting rod (102), and a lever assembly (104) mounted on the rotating base (103); A detachable connecting member (2), the detachable connecting member (2) being respectively engaged with the rotating base (103) and the lever assembly (104); The lever assembly (104) is in a locked state for locking with the detachable connecting member (2) to limit the detachable connecting member (2) from being separated from the rotating base (103); and in an unlocked state for being separated from the detachable connecting member (2) after being driven to release the limit between the detachable connecting member (2) and the rotating base (103).

2. The detachable hinge structure according to claim 1, characterized in that: The detachable connecting member (2) is provided with a first clamping slot (201) for clamping with the rotating base (103), and a second clamping slot (202) for clamping with the lever assembly (104).

3. The detachable hinge structure according to claim 2, characterized in that: The rotating base (103) is located at a position corresponding to the first slot (201) and is provided with a transverse limiting column (1031) which is inserted into the first slot (201).

4. The detachable hinge structure according to claim 2, characterized in that: The lever assembly (104) comprises: An elastic lever (1041), the elastic lever (1041) being used to be inserted into the second slot (202) to restrict the detachable connecting member (2) from being separated from the rotating base (103); A lever pressing plate (1042), the lever pressing plate (1042) being fixedly mounted on the rotating base (103) and used for cooperating with the rotating base (103) to press and fix one end of the elastic lever (1041).

5. The detachable hinge structure according to claim 4, characterized in that: The lever pressing plate (1042) is provided with a strip-shaped limiting groove (1042a) for the middle part of the elastic lever (1041) to pass through and for limiting the deformation stroke of the elastic lever (1041).

6. The detachable hinge structure according to claim 4, characterized in that: The other end of the elastic lever (1041) that is away from the elastic lever is bent into a ring-shaped structure (1041a).

7. The detachable hinge structure according to claim 1, characterized in that: The number of the connecting rod members (102) is two, and the two connecting rod members (102) are arranged in parallel.

8. The detachable hinge structure according to claim 1, characterized in that: The detachable connecting piece (2) is provided with a longitudinal positioning hole (203); The rotating base (103) is provided with a longitudinal limiting column (1032) inserted into the longitudinal positioning hole (203).

9. The detachable hinge structure according to claim 8, characterized in that: The longitudinal limiting column (1032) is clearance-matched with the longitudinal positioning hole (203).

10. A sofa, characterized in that: It comprises the detachable hinge structure (300) according to any one of claims 1 to 9, a seating portion (100) connected to a fixed base (101) of the detachable hinge structure (300), and a backrest portion (200) connected to a detachable connecting piece (2) of the detachable hinge structure (300).

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