A paint-free furniture splicing type connecting structure

Abstract

This utility model relates to the field of furniture installation accessories technology, and discloses a splicing connection structure for paint-free board furniture. The structure includes two wooden boards, a splicing mechanism, and a fixing mechanism. The splicing mechanism includes a fixed plate and a rotating plate. The fixed plate has a clamping plate that is driven to separate by a force-applying column. The clamping plate drives the moving plate to stretch the telescopic plate and generate tension. The fixing mechanism includes a fixed shell, a moving rod, a limiting block, and a fixing block. After the moving rod drives the limiting block to rotate and disengage from the fixed shell, it moves axially into the fixing block and rotates again to lock into its internal slot. This utility model achieves a firm splicing of the boards through internal elastic tension and uses a mechanical interlocking structure to achieve rigid angle locking after rotation. It effectively solves the problems of existing connectors having single function, easy loosening, and lack of stability after angle adjustment. It has the advantages of reliable connection, flexible operation, and shock resistance and anti-loosening.

Description

Technical Field

[0001] This utility model relates to the field of furniture installation accessories technology, and in particular to a splicing connection structure for paint-free board furniture. Background Technology

[0002] As an environmentally friendly, aesthetically pleasing, and easy-to-install decorative material, melamine-faced boards have been widely used in modern furniture manufacturing and interior decoration. During the assembly of melamine-faced board furniture, the connection structure between the boards is a key factor determining the overall stability and durability of the furniture. Currently, common connection methods for melamine-faced boards include three-in-one connectors, direct screw fixing, or traditional hinges.

[0003] However, in practical use, existing connection structures have gradually revealed some limitations. For parts of sheet metal that require splicing and may involve angle adjustments, traditional connection methods are often relatively simple in function. For example, ordinary three-in-one connectors can only achieve vertical or parallel splicing of sheet metal, and once fixed, angle adjustments are no longer possible; while ordinary hinges allow the sheet metal to rotate, but after rotating to a certain angle, they lack a strong rigid locking mechanism, causing the sheet metal to easily wobble or shift under stress. In addition, existing splicing structures mostly rely on simple threaded engagement force, which is prone to loosening after long-term use due to the enlargement of the hole in the sheet metal, lacking an internal continuous tension compensation mechanism, making it difficult to ensure the long-term stability of the connection.

[0004] In summary, how to achieve stable splicing of paint-free boards while providing flexible angle adjustment capabilities, and providing reliable mechanical locking after adjustment, has become a technical challenge that urgently needs to be solved in the current field.

[0005] Therefore, this utility model proposes a splicing connection structure for paint-free board furniture to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the fact that the existing technology of melamine board furniture connection structure has relatively simple functions, it is often difficult to take into account both the splicing of boards and flexible angle adjustment, and there is no strong rigid locking mechanism after the board is rotated and the angle is adjusted, resulting in unstable furniture shape, easy loosening or displacement. This utility model aims to provide a splicing connection structure for melamine board furniture with improved structure that can effectively solve the above problems.

[0007] This utility model provides a splicing connection structure for paint-free board furniture, including: two wooden boards, a splicing mechanism for connecting the two wooden boards and a force-applying column for cooperation, and a fixing mechanism for locking the angle. The splicing mechanism includes a first fixing plate that is respectively engaged inside the grooves of the two wooden boards, and the two first fixing plates are rotatably connected by a rotating plate. A tensioning assembly is constructed inside the first fixing plate, including a second fixing plate fixedly connected inside, a telescopic plate connected to the second fixing plate, a movable plate connected to the end of the telescopic plate away from the second fixing plate, and a clamping plate fixedly connected to the movable plate. The movable plate and the clamping plate are slidably connected inside the first fixing plate. The force-applying column is designed to engage between the two clamping plates and to push the clamping plates away from each other, thereby stretching the telescopic plate to generate a restoring force. The fixing mechanism includes a fixing shell fixedly connected to the surface of one of the wooden boards, and a fixing block fixedly connected to the surface of the other wooden board and capable of engaging inside the fixing shell. The fixing shell has a shell limiting groove inside, and a movable rod passes through and is rotatably connected inside. The end of the movable rod located inside the fixing shell is fixedly connected to the limiting block. The movable rod can drive the limiting block to rotate, disengage from the housing limiting groove, and move axially into the fixed block. The fixed block has a block slot inside for limiting the rotation of the limiting block. This structural combination achieves dual stability from internal tension to external angle locking.

[0008] Preferably, to improve the smoothness and guiding accuracy of the moving component's movement within the fixed plate, the inner wall of the fixed plate is provided with a guide cavity for the moving plate to slide within the guide cavity. Simultaneously, to enhance the transmission efficiency between the force-applying column and the clamping plate, the side wall of the clamping plate facing the force-applying column is specifically provided with a force-bearing surface for the force-applying column to abut against. Through this fit, the insertion action of the force-applying column can be more smoothly converted into the lateral displacement of the clamping plate.

[0009] Preferably, to ensure the connection structure has a continuous fastening force, the telescopic plate is made of spring or elastic steel sheet material, and the telescopic plate is located between the fixed plate and the movable plate. When the force-applying column is engaged, the telescopic plate is in a stretched and stored state, using the elastic potential energy generated by its material properties to resist external vibrations and prevent the connection from loosening.

[0010] Preferably, in order to achieve a flexible rotatable connection between the two wooden boards, the two ends of the rotating board are respectively rotatably connected to the ends of the two fixed boards through a rotating shaft, and the rotating board is located in the gap at the joint of the two wooden boards, acting as a hinge to allow the wooden boards to fold or unfold.

[0011] Preferably, in order to ensure that the limiting block can smoothly enter the fixed block from the fixed shell, the inner wall of the fixed shell is provided with a clearance channel for the axial sliding of the limiting block. The clearance channel connects the shell limiting groove and the opening end of the fixed shell, and the opening end faces the fixed block, providing a clear path for the locking action.

[0012] Preferably, to facilitate unlocking and locking operations for the user, the end of the moving rod away from the limiting block extends to the outside of the fixed shell and is fixedly connected to an operating handle. The operating handle is used for the user to apply rotational torque and axial tension, thereby driving the moving rod and the limiting block connected thereto to rotate and move axially.

[0013] Preferably, to achieve reliable mechanical interlocking, the fixing block has an insertion port on the side facing the fixing shell, and the insertion port connects to the block slot. During the locking process, the limiting block must first pass through the insertion port into the block slot, and then rotate to a position misaligned with the insertion port. Structural interference is used to prevent the limiting block from retracting, thereby firmly locking the angle of the two wooden boards.

[0014] Preferably, in order to ensure that the force-applying column can effectively drive the clamping plates to separate, the force-applying column is designed as a cylindrical structure, and the outer diameter of the force-applying column is strictly larger than the distance between the two clamping plates in the unforced state, so as to force the clamping plates to displace during insertion and generate the necessary tension stroke.

[0015] This utility model has the following beneficial effects: 1. This utility model solves the problems of insufficient connection force and easy loosening after long-term use caused by existing paint-free board connection structures that rely solely on friction or glue for fixation. It utilizes the force column to squeeze the clamping plate to separate it and stretch the telescopic plate to generate a continuous elastic restoring force.

[0016] 2. This utility model, by setting a fixing mechanism including a moving rod, a limiting block and a fixing block, adopts a mechanical interlocking logic of rotation unlocking, axial movement insertion, and rotation locking again, which solves the problem that existing furniture hinges or connectors lack a rigid locking structure after the board rotates to adjust the angle, resulting in unstable furniture shape. It achieves the technical effect of clear operation logic, high locking strength, and effective prevention of accidental relative rotation of two wooden boards when under force.

[0017] 3. This utility model solves the problem that traditional furniture connectors have a single function and cannot simultaneously meet the needs of splicing the end face of the board and adjusting the angle by setting a rotating plate between two fixed plates as a connecting bridge, and with the synergistic effect of the splicing mechanism and the fixing mechanism. It achieves the technical effect of enabling paint-free board furniture to adapt to different assembly positions and angle changes, and improving the flexibility of furniture assembly and its applicability.

[0018] 4. This utility model solves the problems of difficulty in applying force and low transmission efficiency of the internal tensioning mechanism in a narrow space by opening a force-bearing surface or wedge-shaped groove on the side wall of the clamping plate to cooperate with the force-applying column. It achieves the technical effect of using mechanical structure gain to convert a simple insertion action into a powerful lateral clamping force, thereby reducing assembly difficulty and improving connection reliability. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a splicing connection structure for paint-free board furniture proposed in this utility model; Figure 2 This is a schematic diagram of the clamping plate of the splicing connection structure for paint-free board furniture proposed in this utility model; Figure 3 This is a schematic diagram of the fixing shell of a splicing connection structure for paint-free board furniture proposed in this utility model; Figure 4 This is a schematic diagram of the rotating plate of the splicing connection structure for paint-free board furniture proposed in this utility model; Figure 5 This is a structural diagram of the force-applying column of a splicing connection structure for paint-free board furniture proposed in this utility model; Figure 6 This is a schematic diagram of the limiting block for a splicing connection structure of paint-free board furniture proposed in this utility model.

[0020] Legend: 1. Wooden board; 2. Splicing mechanism; 21. Fixed plate one; 22. Clamping plate; 23. Moving plate; 24. Telescopic plate; 25. Fixed plate two; 26. Rotating plate; 3. Force-applying column; 4. Fixing mechanism; 41. Fixed shell; 42. Moving rod; 43. Limiting block; 44. Fixing block. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Reference Figures 1 to 6 This utility model provides a splicing connection structure for paint-free board furniture, which aims to solve the technical problem that existing paint-free board connection structures are difficult to achieve flexible angle adjustment and stable locking after adjustment while realizing splicing of boards.

[0023] The melamine board furniture splicing connection structure includes two wooden boards 1, a splicing mechanism 2 for connecting the two wooden boards 1, a force-applying column 3 for cooperation, and a fixing mechanism 4 for locking the relative angle of the two wooden boards 1. The wooden board 1 serves as the basic component of the furniture, and its side wall has a mounting groove for installing the connecting components. The splicing mechanism 2 is located between the end faces of the two wooden boards 1 that meet, and mainly undertakes the physical connection and rotational hinge function of the boards. The force-applying column 3 serves as an independent external operating component, used to trigger the tensioning and fixing action inside the splicing mechanism 2. The fixing mechanism 4 is distributed on the surface of the two wooden boards 1, and is used to provide mechanical locking force after the wooden boards 1 are rotated into place.

[0024] The splicing mechanism 2 includes two fixing plates 21 that are respectively snapped into the grooves of two wooden boards 1. The two fixing plates 21 serve as connecting bases, and their shapes are adapted to the mounting grooves to achieve embedded installation. The two fixing plates 21 are rotatably connected by a rotating plate 26, which acts as a hinge. Its two ends are respectively rotatably connected to the ends of the two fixing plates 21 through pivots. The rotating plate 26 is located in the gap at the splicing point of the two wooden boards 1, allowing the two wooden boards 1 to fold or unfold and rotate around the axis of the rotating plate 26, thereby adapting to different furniture assembly angle requirements. The fixing plates 21 have internal mechanisms for generating tension. The force component has a fixed plate 25 fixedly connected inside the fixed plate 21. The fixed plate 25 serves as an internal anchor point and is connected to a telescopic plate 24. The end of the telescopic plate 24 away from the fixed plate 25 is connected to a movable plate 23. The movable plate 23 is fixedly connected to a clamping plate 22. The movable plate 23 and the clamping plate 22 are slidably connected inside the fixed plate 21. Specifically, the inner wall of the fixed plate 21 has a guide cavity for the movable plate 23 to slide. The movable plate 23 slides inside the guide cavity, thereby restricting the movement trajectory of the movable plate 23 and the clamping plate 22, so that they can only make linear reciprocating movements along the length direction of the fixed plate 21.

[0025] The clamping plates 22 within the two fixed plates 21 are arranged opposite each other. The force-applying column 3 is engaged between the two clamping plates 22. The sidewalls of the clamping plates 22 facing the force-applying column 3 have force-bearing surfaces or wedge-shaped grooves for the force-applying column 3 to abut against. The outer diameter of the force-applying column 3 is designed to be larger than the distance between the two clamping plates 22 in the unloaded state. When the force-applying column 3 is inserted, it can push the clamping plates 22 away from each other and move them deeper into the fixed plate 21, thereby driving the moving plate 23 to move and stretching the telescopic plate 24. The telescopic plate 24 is made of spring or elastic steel sheet and is located between the fixed plate 25 and the moving plate 23. When the force-applying column 3 is engaged, the telescopic plate 24 is in a stretched and stored state, using its elastic force to maintain the tightness of the connection structure. The fixed shell 41 serves as the main body for the locking action and has specific functional chambers inside, including clearance channels or shell limiting grooves for the movement of internal components. A moving rod 42 is inserted through and rotatably connected inside the fixed shell 41. The moving rod 42 serves as an operating and transmission component. One end of the moving rod 42 located inside the fixed shell 41 is fixedly connected to a limiting block 43. The other end of the moving rod 42 away from the limiting block 43 extends to the outside of the fixed shell 41 and is fixedly connected to an operating handle. The operating handle is used for the operator to apply rotational torque and axial tension, thereby driving the moving rod 42 to rotate and move axially.

[0026] The shape of the limiting block 43 is adapted to the housing limiting groove inside the fixed shell 41. In the initial state or the unlocked state, the limiting block 43 is located in the groove and is restricted by it. By rotating the moving rod 42, the limiting block 43 can be rotated to get out of the constraint of the housing limiting groove, so that the moving rod 42 and the limiting block 43 can move freely along the axial direction. The clearance channel opened on the inner wall of the fixed shell 41 connects the housing limiting groove and the opening end of the fixed shell 41, and the opening end is directly opposite the insertion direction of the fixed block 44, providing a path for the limiting block 43 to extend out of the fixed shell 41 and enter the fixed block 44.

[0027] The fixing block 44, as the object to be locked, has an insertion port on the side facing the fixing shell 41. The insertion port connects to a block slot or locking cavity inside the fixing block 44. The inner wall shape of the locking cavity is adapted to the limiting block 43, for example, it has a limiting slot. When the two wooden boards 1 are rotated to a predetermined angle so that the fixing block 44 is inserted into the fixing shell 41, the operator pulls the moving rod 42 to make the limiting block 43 pass through the insertion port and enter the block slot inside the fixing block 44. At this time, the moving rod 42 is rotated again, causing the limiting block 43 to rotate in the block slot until it is misaligned with the insertion port. The limiting block 43 is then stuck inside the fixing block 44 and cannot be removed, thereby achieving the limiting and locking of the fixing block 44 and ensuring the stability of the two wooden boards 1 after rotation.

[0028] In a preferred embodiment, the clamping plate 22 has a wedge-shaped groove or a guide surface with a certain slope on one side wall facing the force-applying column 3. The corresponding outer wall of the force-applying column 3 abuts tightly against the inner wall of the wedge-shaped groove. Utilizing the mechanical gain generated by the wedge-shaped fit, the force-applying column 3 can push the clamping plate 22 to move more effectively and with less effort during insertion. Simultaneously, the force-applying column 3 adopts a robust and wear-resistant cylindrical structure, and its outer diameter is set to be strictly larger than the minimum distance between the two clamping plates 22 in their natural state, ensuring that insertion inevitably triggers structural deformation and the generation of locking force. The inner wall of the fixed plate 21 has a guide groove or guide cavity extending along its length, and the outer wall of the moving plate 23 is machined with a matching slider or protrusion, thereby slidingly connecting to the inner wall of the guide groove. Through this long guide fit structure, the moving plate 23... The movable plate 23 can only reciprocate linearly along the preset axis, which effectively improves the overall reliability of the splicing mechanism 2. The inner wall of the fixed shell 41 is not only provided with a shell limiting groove for limiting the rotation of the limiting block 43, but also specially provided with an avoidance channel or avoidance groove for the axial sliding of the limiting block 43. The avoidance channel is precisely aligned with the position of the fixed block 44, ensuring that the limiting block 43 can extend to the fixed block 44 without obstruction after unlocking. The inner wall of the fixed block 44 is provided with a limiting slot that is adapted to the shape and height of the limiting block 43. After the limiting block 43 enters, it is rotatably connected to the inside of the limiting slot. The shape lock achieves anti-tension and anti-torsion. In order to facilitate intuitive operation by the user, the end of the moving rod 42 extending to the outside of the fixed shell 41 is fixedly connected with an ergonomically designed handle or rotating handle, which makes it convenient for the user to apply rotation and push-pull force.

[0029] The implementation principle of this application embodiment is as follows: The splicing connection structure of the paint-free board furniture is composed of wooden boards 1. Under the action of the force column 3, the splicing mechanism 2 fixes the two wooden boards 1 together. Under the action of the fixing mechanism 4, after the two wooden boards 1 are rotated, they can be rotated and fixed so that they can adapt to different positions.

[0030] First, the operator brings the two wooden boards 1 close together, then inserts the fixing plate 21 in the splicing mechanism 2 into the groove of the wooden board 1. After the two fixing plates 21 are inserted into the groove, the operator uses the rotating plate 26 to connect the fixing plates 21 in the two wooden boards 1. At this time, the operator uses the force-applying column 3 to insert into the two clamping plates 22, so that the clamping plates 22 are subjected to the force of the force-applying column 3, so that the two clamping plates 22 move away from each other. Then, the moving plate 23, which is fixed to the clamping plate 22, moves within the fixing plate 21, so that the telescopic plate 24, which is fixed to the moving plate 23, is stretched. Under the action of the fixing plate 25, the telescopic plate 24 is continuously stretched, storing elasticity.

[0031] The operator uses the rotating plate 26 to rotate the two wooden boards 1, causing the fixing block 44 in the fixing mechanism 4 to engage with the fixing shell 41. Then, the operator rotates the moving rod 42, causing it to rotate the limiting block 43, disengaging it from the limiting groove inside the fixing shell 41. Next, the operator pulls the moving rod 42, moving the limiting block 43. When the moving rod 42 can no longer move, the limiting block 43 engages with the fixing block 44. The operator then rotates the moving rod 42, causing the limiting block 43 to rotate within the fixing block 44, thus limiting its position. This allows the two wooden boards 1 to rotate and be fixed.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A splicing connection structure for paint-free board furniture, comprising: Two wooden boards (1), a splicing mechanism (2) for connecting the two wooden boards (1) and a force-applying column (3) for use, and a fixing mechanism (4) for locking the angle. The splicing mechanism (2) is characterized in that it includes a first fixed plate (21) that is respectively snapped into the groove of the two wooden boards (1), the two first fixed plates (21) are rotatably connected by a rotating plate (26), a second fixed plate (25) is fixedly connected inside the first fixed plate (21), a telescopic plate (24) is connected to the second fixed plate (25), a movable plate (23) is connected to the end of the telescopic plate (24) away from the second fixed plate (25), a clamping plate (22) is fixedly connected to the movable plate (23), the movable plate (23) and the clamping plate (22) are slidably connected inside the first fixed plate (21), and the force-applying column (3) is snapped between the two clamping plates (22) and pushes the clamping plates (22) away from each other to stretch the telescopic plate (24).

2. The splicing connection structure for paint-free board furniture according to claim 1, characterized in that, The fixing mechanism (4) includes a fixing shell (41) fixedly connected to the surface of the wooden board (1) and a fixing block (44) fixedly connected to the surface of another wooden board (1) and capable of being inserted into the fixing shell (41). The fixing shell (41) is provided with a shell limiting groove inside. A moving rod (42) is inserted through and rotatably connected inside the fixing shell (41). One end of the moving rod (42) located inside the fixing shell (41) is fixedly connected to a limiting block (43). The moving rod (42) can drive the limiting block (43) to rotate so as to disengage from the shell limiting groove and move axially into the fixing block (44). The fixing block (44) is provided with a block slot for limiting the rotation of the limiting block (43).

3. The splicing connection structure for paint-free board furniture according to claim 1, characterized in that, The inner wall of the fixed plate (21) is provided with a guide cavity for the sliding plate (23) to slide. The sliding plate (23) is slidably fitted inside the guide cavity. The side wall of the clamping plate (22) facing the force-applying column (3) is provided with a force-bearing surface for the force-applying column (3) to abut.

4. The splicing connection structure for paint-free board furniture according to claim 1, characterized in that, The telescopic plate (24) is a spring or an elastic steel sheet. The telescopic plate (24) is located between the fixed plate (25) and the movable plate (23), and the telescopic plate (24) is in a stretched and stored state when the force column (3) is engaged.

5. The splicing connection structure for paint-free board furniture according to claim 1, characterized in that, The two ends of the rotating plate (26) are rotatably connected to the ends of the two fixed plates (21) via rotating shafts, and the rotating plate (26) is located in the gap at the joint of the two wooden boards (1).

6. The splicing connection structure for paint-free board furniture according to claim 2, characterized in that, The inner wall of the fixed shell (41) is provided with a clearance channel for the axial sliding of the limiting block (43). The clearance channel connects the shell limiting groove with the opening end of the fixed shell (41), and the opening end is directly opposite the fixed block (44).

7. The splicing connection structure for paint-free board furniture according to claim 2, characterized in that, The end of the moving rod (42) away from the limiting block (43) extends to the outside of the fixed shell (41) and is fixedly connected to an operating handle. The operating handle is used to drive the moving rod (42) to rotate and move axially.

8. The splicing connection structure for paint-free board furniture according to claim 2, characterized in that, The fixing block (44) has an insertion port on the side facing the fixing shell (41). The insertion port is connected to the block slot. The limiting block (43) passes through the insertion port into the block slot and rotates to be misaligned with the insertion port to achieve locking.

9. The splicing connection structure for paint-free board furniture according to claim 1, characterized in that, The force-applying column (3) is a cylinder, and the outer diameter of the force-applying column (3) is larger than the distance between the two clamping plates (22) in the unforced state, so as to force the clamping plates (22) to displace when inserted.

Images