Invisible connecting piece

Abstract

The utility model relates to the field of furniture connection, in particular to an invisible connecting piece. The invisible connecting piece comprises a male piece, a female piece, a fixing iron ring and a limiting mechanism, a thread is formed in the large head section of the male piece, an arc-shaped clamping groove is formed in the small head end of the male piece, the female piece is connected with the male piece in an inserted mode, grippers are fixedly connected into the female piece at equal intervals, the grippers are used for clamping the arc-shaped clamping groove, and the fixing iron ring is slidably connected into the female piece. The interior of the fixing iron ring is a splayed opening, the large-diameter opening of the fixing iron ring faces the small end of the male piece, a base is installed at the end, away from the male piece, of the female piece, and a limiting mechanism is installed on the base. According to the utility model, through the uniquely designed connecting device, rapid installation between cabinet bodies is realized; a user does not need to carry or use any special tool, connection can be easily completed, disassembly can be completed only by carrying a strong magnet during disassembly, and operation convenience and efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of furniture connection, in particular to an invisible connector. Background Art

[0002] With the booming development of the modern furniture industry and the increasing maturity of logistics systems, consumers have placed higher demands on the convenience, aesthetics, and durability of furniture. In particular, during the transportation and installation of furniture, fast and damage-free installation between cabinets has become a focus of the industry. While there are many types of cabinet connectors on the market, most products still fail to meet consumers' comprehensive demands for tool-free installation, high fault tolerance, invisible aesthetics, and cost-effectiveness.

[0003] Cabinet connectors on the current market are mainly divided into two categories: traditional fasteners and invisible connectors. Traditional fasteners such as screws are stable to install, but they rely on tools, are complicated to install, and can easily damage the cabinet, affecting its appearance. Invisible connectors, although they have improved in aesthetics, generally have problems such as low installation accuracy, poor fault tolerance, insufficient connection strength and high cost. These limitations restrict the widespread application of existing connectors in the modern furniture industry, making it difficult to meet the market demand for high-quality connectors.

[0004] Therefore, it is necessary to provide a new invisible connector to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an invisible connector.

[0006] The invisible connector provided by the utility model includes: a male part, a female part, a fixed iron ring and a limiting mechanism. The large head section of the male part is provided with a thread, the small head end of the male part is provided with an arc-shaped slot, the female part is plugged into the male part, and the interior of the female part is equidistantly fixed with inclined grippers, and several of the grippers are used to clamp the arc-shaped slots. The fixed iron ring is slidably connected to the interior of the female part, and the interior of the fixed iron ring is an eight-shaped opening, and the large diameter opening of the fixed iron ring faces the small head end of the male part. A base is installed at the end of the female part away from the male part, and a limiting mechanism is installed on the base.

[0007] Preferably, the limiting mechanism includes: a hollow limiting column, a limiting spring, a positioning shaft and an elastic claw. One end of the base is fixedly connected to the hollow limiting column, the limiting spring is fixedly connected inside the base, the inner wall of the hollow limiting column is slidably connected to the positioning shaft, one end of the positioning shaft is fixedly connected to one end of the limiting spring, and the middle part of the positioning shaft is symmetrically fixedly connected with elastic claws. The two elastic claws extend out of the hollow limiting column. Pressing one end of the positioning shaft actually compresses the limiting spring, and the two elastic claws retract into the interior of the hollow limiting column.

[0008] Preferably, a fixed spring is fixedly connected between the base and the fixed iron ring, and the elastic force of the fixed spring squeezes the fixed iron ring to compress the plurality of grippers, so that the plurality of grippers are engaged with the arc-shaped slots.

[0009] Preferably, when the plurality of grippers are engaged with the arc-shaped slots at the small end of the male component, the small end of the male component contacts one end of the positioning shaft.

[0010] Preferably, two notches cooperating with the elastic claws are symmetrically provided in the middle of the hollow limiting column, and the inner walls of the two notches are conical in design.

[0011] Preferably, the plurality of grippers are designed to be sloped and match the concave arc of the arc-shaped slot.

[0012] Preferably, the male part is made of hardware, the female part is made of plastic, and the fixing iron ring is made of chrome-plated iron.

[0013] Compared with the related art, the invisible connector provided by the present invention has the following beneficial effects:

[0014] Quick assembly and disassembly: This utility model realizes quick installation between cabinets through a uniquely designed connection device; users can easily complete the connection without carrying or using any special tools, and only need to carry a strong magnet to complete the disassembly when disassembling, which greatly improves the convenience and efficiency of operation;

[0015] Seamless connection with high fault tolerance: The fixed iron ring in this utility model adopts an inner eight-shaped hole design, which can achieve seamless connection within a fault tolerance range of 1MM; this design not only improves the stability and reliability of the connection, but also reduces the difficulty and error during the installation process, making the connection more accurate;

[0016] 360-degree circular linear C-point locking: Through the cooperation of the internal grip of the female component and the arc-shaped slot of the male component neck, and the locking mechanism of the fixed iron ring under the action of the spring, the utility model realizes 360-degree circular linear C-point locking. This connection method makes the connection between cabinets more secure, can withstand greater force and torque, and improves the overall stability and safety of the furniture.

[0017] Truly invisible connection: After the connection is completed, there is almost no visible connection trace, achieving a truly invisible connection. This design is not only beautiful and generous, but also avoids the bulges or depressions that may occur in traditional connection methods, protecting the integrity of the product cabinet.

[0018] Reduced production costs and market prices: Because the connecting device of the utility model has a simple structure, is easy to manufacture, and does not require expensive special tools for installation, it can significantly reduce production costs. At the same time, these cost savings will also be reflected in the market price, providing the public with more economical and affordable furniture products;

[0019] Improve user experience: Quick installation, seamless connection with high fault tolerance, and truly invisible design allow users to enjoy a more convenient, comfortable, and safe experience during use; this improved user experience will help improve the product's market competitiveness and user satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the invisible connector provided by the utility model;

[0021] Figure 2 for Figure 1 The schematic diagram of the structure of the mother piece is shown;

[0022] Figure 3 for Figure 1 The schematic diagram of the structure of the internal gripper of the mother part shown;

[0023] Figure 4 for Figure 1 A schematic side cross-sectional view of the internal structure of the mother component shown;

[0024] Figure 5 for Figure 1 A schematic structural diagram of a side cross-sectional view of the base shown;

[0025] Figure 6 for Figure 1 The structural diagram of the positioning shaft and the hollow limiting column shown;

[0026] Figure 7 for Figure 1 The schematic diagram of the structure of the positioning shaft and elastic claws is shown.

[0027] The numbers in the figure are 1, male part; 2, female part; 3, thread; 4, arc-shaped slot; 5, fixed iron ring; 6, gripper; 7, limit mechanism; 8, base; 9, fixed spring; 10, notch; 71, hollow limit column; 72, limit spring; 73, positioning shaft; 74, elastic claw. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0030] See also Figure 1-7 , an invisible connector, the invisible connector includes: a male part 1, a female part 2, a fixed iron ring 5 and a limiting mechanism 7, the large head section of the male part 1 is provided with a thread 3, the small head end of the male part 1 is provided with an arc-shaped slot 4, the female part 2 is plugged into the male part 1, and the internal part of the female part 2 is equidistantly fixed with an inclined gripper 6, several of the grippers 6 are used to clamp the arc-shaped slot 4, the fixed iron ring 5 is slidably connected to the inside of the female part 2, and the internal part of the fixed iron ring 5 is an eight-shaped opening, the large diameter opening of the fixed iron ring 5 faces the small head end of the male part 1, the end of the female part 2 away from the male part 1 is installed with a base 8, a limiting mechanism 7 is installed on the base 8, and a fixed spring is fixedly connected between the base 8 and the fixed iron ring 5 9. The fixed iron ring 5 is squeezed by the elastic force of the fixed spring 9 to compress several of the grippers 6, so that several of the grippers 6 are engaged with the arc-shaped slot 4. When several of the grippers 6 are engaged with the arc-shaped slot 4 of the small head end of the male component 1, the small head end of the male component 1 contacts one end of the positioning shaft 73. Two notches 10 that cooperate with the elastic claws 74 are symmetrically opened in the middle of the hollow limit column 71, and the inner walls of the two notches 10 are conical in design. Several of the grippers 6 are sloped in design and match the concave arc line of the arc-shaped slot 4. The male component 1 is made of hardware, the female component 2 is made of plastic, and the fixed iron ring 5 is made of chrome-plated iron; the slope angle of the gripper 6 is between 45 degrees and 180 degrees.

[0031] See also Figure 4-7 The limiting mechanism 7 includes: a hollow limiting column 71, a limiting spring 72, a positioning shaft 73 and an elastic claw 74. One end of the base 8 is fixedly connected to the hollow limiting column 71, and the limiting spring 72 is fixedly connected to the inside of the base 8. The inner wall of the hollow limiting column 71 is slidably connected to the positioning shaft 73. One end of the positioning shaft 73 is fixedly connected to one end of the limiting spring 72, and the middle part of the positioning shaft 73 is symmetrically fixedly connected with an elastic claw 74. The two elastic claws 74 extend out of the hollow limiting column 71. Pressing one end of the positioning shaft 73 actually compresses the limiting spring 72, and the two elastic claws 74 retract into the inside of the hollow limiting column 71.

[0032] The working principle of the invisible connector provided by the utility model is as follows:

[0033] 1. Overall working principle

[0034] The utility model realizes fast installation and firm connection between cabinets through an innovative connection device structure. The device mainly consists of two parts: a male part 1 and a female part 2. Through the unique mechanical structure design, it realizes seamless connection within a tolerance range of 1mm and has the characteristics of 360-degree circular linear C-point locking. In addition, the invisible connection device does not require the intervention of tools during installation, and is close to the end of the female part 2 by a strong magnet (regardless of north and south poles) during removal.

[0035] 2. Specific working principle

[0036] Initial docking of male part 1 and female part 2

[0037] Male component 1 structure: Male component 1 is made of hardware and has two ends: a large and a small head. The large end has a thread 3 that can be screwed into the cabinet. The small end is a slender column with a curved neck at the front end to match the curved surface of the female component 2 gripper 6.

[0038] The structure of the female component 2: The female component 2 is made of plastic and has multiple grippers 6 fixedly connected to it at equal intervals. The convex curves of these grippers 6 match the concave curves of the small end of the male component 1, which is used to clamp the male component 1.

[0039] When the male component 1 and the female component 2 are initially docked, the small end of the male component 1 is inserted into the interior of the female component 2, so that the gripper 6 can surround the curved neck of the male component 1;

[0040] Locking mechanism of fixed iron ring 5

[0041] Structure of the fixed iron ring 5: The interior of the fixed iron ring 5 is an eight-shaped opening, with the large diameter opening facing the small end of the male part 1; under the action of the spring, the fixed iron ring 5 can move along the direction of the gripper 6 to achieve locking or loosening. The fixed iron ring 5 adopts a 360-degree locking design, and when used in conjunction with a strong magnet, there is no need to distinguish directions;

[0042] Locking process: After the male part 1 and the female part 2 are docked, the fixed iron ring 5 moves forward under the elastic force of the spring, and its inner eight-shaped hole gradually tightens and locks into the curved neck of the male part 1; as the fixed iron ring 5 moves further, the gripper 6 is squeezed by the fixed iron ring 5 and fits tightly with the curved neck of the male part 1, forming a ring-shaped C-point locking structure;

[0043] Function of limit mechanism 7

[0044] The limiting mechanism 7 mainly consists of a hollow limiting column 71, a limiting spring 72, a positioning shaft 73, and an elastic claw 74. The positioning shaft 73 is slidably connected to the inside of the hollow limiting column 71 and is maintained in a certain position by the action of the limiting spring 72. The elastic claw 74 is symmetrically fixed to the middle of the positioning shaft 73 and extends out of the hollow limiting column 71.

[0045] Functional implementation: When the fixed iron ring 5 completely locks the male part 1, one end of the positioning shaft 73 contacts the small end of the male part 1; at this time, the elastic claw 74 is guided by the tapered design at the notch 10 of the hollow limit column 71 and retracts into the interior, thereby allowing the positioning shaft 73 to continue to move forward; when the preset position is reached, the elastic claw 74 pops out and gets stuck on the hollow limit column 71, achieving the limiting and locking of the fixed iron ring 5;

[0046] Realization of fast installation and strong magnetic removal

[0047] Disassembly process: When the connecting device needs to be disassembled, the user only needs to gently press one end of the positioning shaft 73 to shrink the elastic claw 74 into the hollow limit column 71; at the same time, move the strong magnet close to the end of the mother part 2 close to the base 8, so that the fixed iron ring 5 receives the magnetic attraction and compresses the fixed spring 9. At this time, the positioning shaft 73 loses its limit constraint and can move backward under the action of the limit spring 72; as the positioning shaft 73 moves, the fixed iron ring 5 gradually relaxes the squeezing of the gripper 6 under the elastic force of the spring, so that the gripper 6 is separated from the arc neck of the male part 1; then, the male part 1 can be easily pulled out from the mother part 2, and the two elastic clamping claws 74 limit the fixed iron ring 5. At this time, the two grippers 6 are not restricted.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An invisible connector, characterized in that: include: A male part (1), wherein the large end section of the male part (1) is provided with a thread (3), and the small end section of the male part (1) is provided with an arc-shaped slot (4); A female component (2) is plugged into the male component (1), and inclined grippers (6) are fixedly connected at equal intervals inside the female component (2), and a plurality of the grippers (6) are used to engage the arc-shaped slots (4); A fixed iron ring (5) is slidably connected to the inside of the female component (2), and the inside of the fixed iron ring (5) is an eight-shaped opening, and the large diameter opening of the fixed iron ring (5) faces the small end of the male component (1); A limiting mechanism (7) is provided, wherein a base (8) is installed at one end of the female component (2) away from the male component (1), and the limiting mechanism (7) is installed on the base (8).

2. The invisible connector according to claim 1, characterized in that: The limiting mechanism (7) comprises: a hollow limiting column (71), a limiting spring (72), a positioning shaft (73) and an elastic claw (74); one end of the base (8) is fixedly connected to the hollow limiting column (71); the limiting spring (72) is fixedly connected inside the base (8); the inner wall of the hollow limiting column (71) is slidably connected to the positioning shaft (73); one end of the positioning shaft (73) is fixedly connected to one end of the limiting spring (72); the middle part of the positioning shaft (73) is symmetrically fixedly connected to the elastic claw (74); the two elastic claws (74) extend out of the hollow limiting column (71); pressing one end of the positioning shaft (73) actually compresses the limiting spring (72), and the two elastic claws (74) shrink into the interior of the hollow limiting column (71).

3. The invisible connector according to claim 1, characterized in that: A fixed spring (9) is fixedly connected between the base (8) and the fixed iron ring (5), and the elastic force of the fixed spring (9) squeezes the fixed iron ring (5) to compress the plurality of grippers (6), so that the plurality of grippers (6) are engaged with the arc-shaped clamping groove (4).

4. The invisible connector according to claim 2, characterized in that: When the plurality of grippers (6) are engaged with the arc-shaped slots (4) at the small end of the male component (1), the small end of the male component (1) contacts one end of the positioning shaft (73).

5. The invisible connector according to claim 2, characterized in that: Two notches (10) cooperating with the elastic claws (74) are symmetrically provided in the middle of the hollow limiting column (71), and the inner walls of the two notches (10) are designed to be conical.

6. The invisible connector according to claim 1, characterized in that: The inclinations of the plurality of grippers (6) are consistent with the concave arc lines of the arc-shaped slots (4).

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