Novel lightweight backrest suspension

Abstract

The utility model discloses a novel lightweight backrest suspension relates to backrest suspension field. The utility model discloses two groups of damping support of mirror image setting, and the inboard of two groups damping support is assembled and is connected with several groups of suspension frame through the clamping mechanism, the utility model discloses a clamping mechanism, two groups of mirror image setting damping support as base frame, and the inboard is assembled several groups of suspension frame through the clamping mechanism, need not rely on complex pipeline bending device and welding equipment and can complete the assembly, and the production difficulty is reduced greatly, and when the part is damaged in later period, need not integral replacement, only need to replace corresponding suspension frame or clamping mechanism, reduce maintenance cost, simultaneously, can according to the backrest size flexible adjustment suspension frame number, reduce material consumption, realize lightweight target, and the movable cooperation of clamping mechanism has certain activity margin when suspension frame bears the force, and the elastic structure cooperation suspension frame disperses back pressure, improves damping support effect and user comfort.

Description

Technical Field

[0001] This utility model relates to the field of backrest suspension, and more particularly to a novel lightweight backrest suspension. Background Technology

[0002] Backrest springs are the core elastic support components inside seat backs, widely used in products such as sofas, car seats, and office chairs. They mainly cushion the pressure on the human back through their own elastic deformation, avoiding discomfort from hard contact. At the same time, they can work with materials such as sponge and fabric to maintain the shape of the backrest, prevent sagging and deformation, distribute weight, reduce local wear, and extend the service life of the seat.

[0003] The inventors of this application have discovered the following problems during practical use:

[0004] Currently, backrest suspension springs are integrated structures during installation, processed using external pipe bending devices. However, this presents a problem: the integrated backrest suspension spring undoubtedly increases the production difficulty. Therefore, the inventor urgently needs to design a backrest suspension spring that is easy to assemble, thereby improving the ease of production and processing.

[0005] Therefore, it is necessary to provide a new type of lightweight backrest suspension to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is that the integrated structure needs to be processed in conjunction with external pipeline bending and welding devices, which not only limits the operation process, but also significantly increases the production difficulty and directly affects the processing efficiency and convenience. In view of the above-mentioned defects of the prior art, a new lightweight backrest suspension is provided.

[0007] To achieve the above objectives, the technical solution of this utility model is: a novel lightweight backrest suspension, comprising two sets of shock-absorbing brackets arranged in a mirror image, wherein several sets of suspension brackets are assembled and connected to the inner sides of the two sets of shock-absorbing brackets through a snap-fit ​​mechanism.

[0008] The locking mechanism includes a first locking ring, which is disposed at both ends of the suspension frame and is integrally bent. An elastic fastener is movably fastened to the first locking ring through a second locking ring. A hook is fixedly connected to the other side of the elastic fastener through a diagonal rod. The hook is hooked to the suspension frame and is used to limit the shock absorber bracket within the limiting gap between the suspension frame and the elastic fastener.

[0009] By adopting the above technical solution, using two sets of mirrored shock-absorbing brackets as the basic frame, and assembling several sets of suspension brackets on the inside through a snap-fit ​​mechanism, the limitations of the integrated structure are broken. Workers do not need complicated equipment and can complete the assembly only through the snap-fit ​​mechanism. The first snap-fit ​​ring is bent and formed as a whole with the suspension bracket to ensure the stability of the foundation. The elastic fastener is movably snapped to the first snap-fit ​​ring through the second snap-fit ​​ring, and then hooked to the suspension bracket with the diagonal rod connection. This can quickly restrict the shock-absorbing bracket within the limit gap, greatly reducing the assembly difficulty.

[0010] Furthermore, an opening is formed on one side of the first snap ring to allow the second snap ring to access the inner side.

[0011] By adopting the above technical solution, if the first snap ring has no opening, the second snap ring cannot be inserted and is prone to jamming due to size deviation. The opening design allows the second snap ring to enter the inside directly from the opening, which greatly shortens the assembly time of the snap mechanism. In particular, it can reduce working hours and labor costs in mass production, while avoiding component wear caused by forced insertion.

[0012] Furthermore, the second snap ring, elastic fastener, and hook are all integrally bent structures.

[0013] By adopting the above technical solutions, the integrity and stability of the snap-fit ​​mechanism are improved. If the traditional snap-fit ​​components are spliced ​​in multiple segments, the connection points are prone to becoming weak links and are easy to loosen and break after long-term stress. However, the one-piece bending and forming eliminates the splicing points, making the three parts form a complete force-bearing whole. It can evenly transmit external forces, avoid local stress concentration, greatly improve the load-bearing capacity and service life of the snap-fit ​​mechanism, ensure the long-term stability of the connection between the shock-absorbing bracket and the suspension frame, and prevent backrest suspension failure due to component damage.

[0014] Furthermore, the suspension frame is bent to form several convex structures to provide elasticity.

[0015] By adopting the above technical solutions, the problem of the traditional backrest suspension relying on the elasticity of the material and being prone to decay is solved. Traditional suspension relies solely on the elasticity of the material itself for support, and it is prone to collapse and loss of elasticity after long-term use. However, the convex structure, through a specific bending shape, can maintain stable elasticity for a long time, extend the service life of the backrest suspension, and ensure the comfort of users for a long time.

[0016] Furthermore, the shock absorber bracket is bent and provided with several limiting parts, the limiting parts are positioned opposite to the limiting points of the suspension bracket, the elastic fastener is fastened to the inner side of the limiting parts, and the limiting parts have a "U" shaped structure, which is used to limit the longitudinal installation points of the suspension bracket and the snap-fit ​​mechanism.

[0017] By adopting the above technical solution, when traditional assembly lacks longitudinal constraints, the suspension frame is prone to uneven distribution due to operational errors or force deviation, affecting the support effect and appearance. However, the "U"-shaped limiting part is aligned with the limiting point of the suspension frame, and the elastic fastener is fastened on the inside, which can stabilize and constrain the components longitudinally, ensuring that each set of suspension frames is accurately installed in the preset position, thus improving assembly accuracy and quality stability.

[0018] Furthermore, the upper part of the shock absorber bracket is bent into an "L" shape to limit the bending portion, and the lower part of the shock absorber bracket is installed with a mounting bracket by a clamping nail. One side of the mounting bracket is bent into an assembly hole.

[0019] By adopting the above technical solution, the upper structure of the backrest suspension can be double-limited to avoid displacement during assembly or use. The "L"-shaped lateral section can block the longitudinal displacement of the suspension frame or the external frame, and the longitudinal section assists in positioning to ensure that the shock-absorbing bracket and the external frame are accurately positioned.

[0020] Furthermore, the shock-absorbing bracket is also equipped with a sliding buckle.

[0021] By adopting the above technical solution, the sliding buckle can slide along the preset trajectory of the shock-absorbing bracket. The staff can adjust the position according to the seat size and the tightness of the fabric, and then connect it with the external parts without disassembling the overall structure. This improves the assembly flexibility and the convenience of subsequent adjustments, and is especially suitable for the production of multi-specification seats, reducing the cost of mold replacement.

[0022] Compared with related technologies, the novel lightweight backrest suspension provided by this utility model has the following beneficial effects:

[0023] This utility model provides a novel lightweight backrest suspension. Using a snap-fit ​​mechanism, two sets of mirror-aligned shock-absorbing brackets serve as the basic frame. Several sets of suspension brackets are assembled on the inner side via the snap-fit ​​mechanism. Assembly can be completed without relying on complex pipeline bending devices and welding equipment, significantly reducing production difficulty. In the event of component damage, there is no need to replace the entire unit; only the corresponding suspension bracket or snap-fit ​​mechanism needs to be replaced, reducing maintenance costs. Simultaneously, the number of suspension brackets can be flexibly adjusted according to the backrest size, reducing material usage and achieving the goal of lightweight design. Furthermore, the movable cooperation of the snap-fit ​​mechanism allows the suspension brackets a certain amount of flexibility when under stress, and the elastic structure of the suspension brackets disperses back pressure, improving shock absorption and support effects and user comfort.

[0024] This utility model provides a novel lightweight backrest suspension that uses a snap-fit ​​mechanism. The first snap-fit ​​ring has an opening, allowing the second snap-fit ​​ring to directly enter the inner side, avoiding the assembly jamming of traditional closed snap-fit ​​rings, shortening assembly time, and reducing component wear. The second snap-fit ​​ring, elastic fastener, and hook are integrally bent and formed, eliminating splicing points, improving load-bearing capacity and service life, and preventing loosening and breakage under stress. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0027] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0028] Figure 4 This is an enlarged structural diagram of the snap-fit ​​mechanism of this utility model.

[0029] Figure 5 This is a schematic diagram of a new embodiment of the related technology of this utility model.

[0030] The following are the labels in the diagram: 1. Shock absorber bracket; 2. Suspension bracket; 3. Limiting part; 4. Snap-fit ​​mechanism; 401. First snap-fit ​​ring; 402. Elastic fastener; 403. Second snap-fit ​​ring; 404. Diagonal bar; 405. Hook; 5. Mounting bracket; 601. Assembly hole; 602. Limiting bending part; 7. Sliding buckle; 8. Clamping pin. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings show typical embodiments of this utility model.

[0032] In this embodiment:

[0033] A new lightweight backrest suspension, such as Figure 1-4 As shown, there are two sets of shock absorber brackets 1 arranged in a mirror image. Several sets of suspension brackets 2 are assembled and connected to the inner side of the two sets of shock absorber brackets 1 through a snap-fit ​​mechanism 4.

[0034] The locking mechanism 4 includes a first locking ring 401, which is located at both ends of the suspension frame 2 and is integrally bent. An elastic fastener 402 is movably fastened to the first locking ring 401 via a second locking ring 403. A hook 405 is fixedly connected to the other side of the elastic fastener 402 via a diagonal rod 404. The hook 405 is hooked to the suspension frame 2 to restrict the shock absorber bracket 1 within the limiting gap between the suspension frame 2 and the elastic fastener 402. Two sets of mirror-arranged shock absorber brackets 1 serve as the basic frame, and several sets of suspension frames 2 are modularly assembled on the inner side via the locking mechanism 4, breaking the limitations of an integrated structure. This eliminates the need for manual operation. Complex equipment can be assembled using only the snap-fit ​​mechanism 4. The first snap-fit ​​ring 401 is integrally bent and formed with the suspension frame 2 to ensure a stable foundation. The elastic fastener 402 is movably snapped to the first snap-fit ​​ring 401 through the second snap-fit ​​ring 403. In addition, the hook 405 connected to the diagonal bar 404 is attached to the suspension frame 2, which can quickly restrict the shock-absorbing bracket 1 within the limit gap, greatly reducing the assembly difficulty. At the same time, it provides convenience for the replacement of components in the future, avoiding the problem of having to replace the whole structure after the integrated structure is damaged. In addition, this modular setting can also achieve the goal of lightweighting. The number of suspension frames 2 can be flexibly adjusted according to the backrest size, reducing the amount of materials used and the overall weight.

[0035] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The first locking ring 401 has an opening on one side for the second locking ring 403 to access the inside. If the first locking ring 401 has no opening, the second locking ring 403 cannot be inserted and is prone to jamming due to dimensional deviation. The opening design allows the second locking ring 403 to directly enter the inside from the opening, which greatly shortens the assembly time of the locking mechanism 4. Especially in mass production, it can reduce working hours and labor costs, while avoiding wear of parts caused by forced insertion. At the same time, the opening does not weaken the structural strength of the first locking ring 401. Its foundation, which is bent as an integral part with the suspension frame 2, can still ensure stability and ensure connection reliability. In addition, the opening also provides convenience for later maintenance. The staff can directly observe the fit between the first locking ring 401 and the second locking ring 403 through the opening and promptly detect loosening or wear problems without disassembling the entire locking mechanism 4, further reducing maintenance difficulty and cost and improving product practicality.

[0036] See Figure 1 , Figure 2 , Figure 3 , Figure 4The second snap-fit ​​ring 403, the elastic fastener 402, and the hook 405 are all integrally bent, which improves the integrity and stability of the snap-fit ​​mechanism 4. If the traditional snap-fit ​​components are spliced ​​in multiple segments, the connection points are prone to becoming weak links and are prone to loosening and breaking after long-term stress. However, the integral bending eliminates the splicing points, making the three into a complete force-bearing whole. It can evenly transmit external forces, avoid local stress concentration, and greatly improve the load-bearing capacity and service life of the snap-fit ​​mechanism 4. It ensures the long-term stability of the connection between the shock absorber bracket 1 and the suspension bracket 2, and is not prone to backrest suspension failure due to component damage. At the same time, the integral bending structure can also simplify the production and assembly process. In the production stage, there is no need to process and splice separately. Only one bending process is required to complete the process, reducing the number of processes and parts, reducing production errors, and ensuring the consistency of component dimensions. In the assembly stage, the staff can directly use the integrally formed components to cooperate with the first snap-fit ​​ring 401 and the suspension bracket 2, shortening the assembly time.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The suspension frame 2 has several convex structures formed by bending, which provide elasticity and solve the problem that traditional backrest suspensions rely on the elasticity of the material and are prone to decay. Traditional suspensions rely solely on the elasticity of the material itself for support, and are prone to collapse and loss of elasticity after long-term use. However, the convex structure, through a specific bending shape, can maintain stable elasticity for a long time, extend the service life of the backrest suspension, and ensure the comfort of users for a long time. At the same time, the convex structure balances lightweight and strength, without increasing the thickness or size of the suspension frame 2. The elasticity function can be achieved simply by optimizing the structure, reducing the amount of material used and the overall weight, which meets the requirements of lightweight design.

[0038] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The shock absorber bracket 1 is bent and has several limiting parts 3. The limiting parts 3 are positioned opposite to the limiting points of the suspension bracket 2. The elastic fasteners 402 are fastened to the inner side of the limiting parts 3. The limiting parts 3 have a "U" shape structure, which is used to limit the longitudinal installation points of the suspension bracket 2 and the snap-fit ​​mechanism 4. When traditional assembly lacks longitudinal constraints, the suspension bracket 2 is prone to uneven distribution due to operation errors or force deviation, which affects the support effect and appearance. However, the "U" shaped limiting parts 3 are aligned with the limiting points of the suspension bracket 2, and the elastic fasteners 402 are fastened to the inner side, which can stabilize the components longitudinally and ensure that each set of suspension brackets 2 is accurately installed in the preset position, improving the assembly accuracy and quality stability. At the same time, the "U" shaped structure can also enhance the strength and shock absorption effect of the shock absorber bracket 1. The "U" shaped structure has stronger resistance to deformation, which can improve the longitudinal load-bearing capacity and prevent the shock absorber bracket 1 from bending. Moreover, the "U" shaped structure can be deformed and buffered when subjected to force, which is further enhanced in conjunction with the elasticity of the suspension bracket 2.

[0039] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The shock absorber bracket 1 has an "L"-shaped limiting bend 602 at its upper part. A mounting bracket 5 is installed below the shock absorber bracket 1 via clamping pins 8. One side of the mounting bracket 5 has a bent assembly hole 601, providing double limiting for the upper structure of the backrest suspension to prevent displacement during assembly or use. The "L"-shaped lateral section blocks longitudinal displacement of the suspension frame 2 or the external frame, while the longitudinal section assists in positioning, ensuring accurate alignment between the shock absorber bracket 1 and the external frame. Simultaneously, the mounting bracket 5 with the assembly hole 601 is installed below the shock absorber bracket 1 via clamping pins 8, providing a convenient interface for connection to the external seat. The mounting bracket 5 is tightly fixed to the shock absorber bracket 1 via clamping pins 8, simplifying operation. The assembly hole 601 is compatible with various connectors, allowing workers to quickly fix the suspension to the seat frame, improving assembly convenience. Furthermore, the design of the assembly hole 601 ensures even force distribution, preventing the mounting bracket 5 from falling off and guaranteeing overall connection stability.

[0040] See Figure 1 , Figure 2 , Figure 3 , Figure 4 The shock absorber bracket 1 is also equipped with a sliding buckle 7, which can slide along the preset track of the shock absorber bracket 1. The staff can adjust the position according to the seat size and the tightness of the fabric, and then connect it with the external parts without disassembling the overall structure, which improves the assembly flexibility and the convenience of later adjustment. It is especially suitable for the production of multi-specification seats, reducing the cost of mold replacement. At the same time, the sliding buckle 7 can also enhance the structural adaptability and safety, and can be used as an additional connection point to distribute the force and avoid the breakage of a single connection point. In addition, the sliding buckle 7 has a locking function, which can fix the position after adjustment to prevent accidental sliding.

[0041] The implementation principle of this embodiment is as follows: A limiting part 3 and an "L"-shaped limiting bend 602 are pre-formed by bending the shock absorber bracket 1, and the sliding buckle 7 is assembled to the corresponding position of the shock absorber bracket 1; then, the suspension bracket 2 is taken, and using the first snap-fit ​​ring 401 with its two ends bent integrally, the elastic fastener 402 in the snap-fit ​​mechanism 4 is movably snapped onto the first snap-fit ​​ring 401 via the second snap-fit ​​ring 403; then, the elastic fastener 402 is hooked onto the suspension bracket 2 via the hook 405 connected by the diagonal rod 404, so that the limiting part of the shock absorber bracket 1... 3. Insert the suspension frame 2 into the limiting gap between the suspension frame 2 and the elastic fastener 402 to complete the assembly of a single suspension frame 2 and the shock absorber bracket 1; then, in the same way, assemble several sets of suspension frames 2 into the inner side of two sets of mirror-arranged shock absorber brackets 1 in sequence through the snap-fit ​​mechanism 4; finally, install the mounting bracket 5 with the mounting hole 601 under the shock absorber bracket 1 through the clamping pin 8 to complete the assembly of the entire new lightweight backrest suspension. Subsequently, the connection between this structure and external components can be achieved by using the mounting hole 601 and the limiting bending part 602.

[0042] The advantages of this technical solution in practical applications include, but are not limited to, the following:

[0043] 1. The shock-absorbing bracket set in the group mirror configuration serves as the basic frame, and several sets of suspension brackets are assembled on the inside through a snap-fit ​​mechanism. Assembly can be completed without relying on complex pipeline bending devices and welding equipment, which greatly reduces the difficulty of production.

[0044] 2. The first snap-fit ​​ring has an opening, allowing the second snap-fit ​​ring to directly enter the inner side, avoiding assembly jamming as is common with traditional closed snap-fit ​​rings and shortening assembly time.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel lightweight backrest suspension, characterized in that: Includes two sets of shock absorber brackets (1) with mirrored configuration, and several sets of suspension brackets (2) are assembled and connected to the inner side of the two sets of shock absorber brackets (1) through a snap-fit ​​mechanism (4); The locking mechanism (4) includes a first locking ring (401), which is disposed at both ends of the suspension frame (2) and is integrally bent. An elastic fastener (402) is movably fastened to the first locking ring (401) through a second locking ring (403). A hook (405) is fixedly connected to the other side of the elastic fastener (402) through a diagonal rod (404). The hook (405) is hooked to the suspension frame (2) to limit the shock absorber bracket (1) within the limiting gap between the suspension frame (2) and the elastic fastener (402).

2. The novel lightweight backrest suspension according to claim 1, characterized in that: The first snap ring (401) has an opening on one side for the second snap ring (403) to access the inside.

3. The novel lightweight backrest suspension according to claim 1, characterized in that: The second snap ring (403), elastic fastener (402) and hook (405) are all integrally bent structures.

4. The novel lightweight backrest suspension according to claim 1, characterized in that: The suspension frame (2) is bent to form several convex structures to provide elasticity.

5. The novel lightweight backrest suspension according to claim 1, characterized in that: The shock absorber bracket (1) is bent and provided with several limiting parts (3). The limiting parts (3) are opposite to the limiting points of the suspension bracket (2). The elastic fastener (402) is fastened to the inner side of the limiting part (3). The limiting part (3) has a "U" shaped structure and is used to limit the longitudinal installation points of the suspension bracket (2) and the snap-fit ​​mechanism (4).

6. The novel lightweight backrest suspension according to claim 1, characterized in that: The shock absorber bracket (1) has an "L"-shaped limiting bend (602) bent at the top, and an installation bracket (5) is installed at the bottom of the shock absorber bracket (1) by means of a clamping nail (8). An assembly hole (601) is bent on one side of the installation bracket (5).

7. The novel lightweight backrest suspension according to claim 1, characterized in that: The shock absorber bracket (1) is also equipped with a sliding buckle (7).

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