Soft quick assembly buckle
By designing multi-point and four-point soft elastic connecting fasteners, the problem of the wide variety of 3D printing medium-speed splicing fasteners and the inconvenience of glue connection is solved. It realizes fast and flexible connection and disassembly, adapts to the splicing needs of different materials and thicknesses, and improves connection stability and versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 孙琼芳
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-10
Smart Images

Figure CN224479129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener technology, specifically a soft, quick-connect fastener. Background Technology
[0002] 3D printing, also known as additive manufacturing, is a technology that constructs three-dimensional solids by depositing materials layer by layer. Unlike traditional subtractive manufacturing, which involves removing material through cutting or grinding, 3D printing offers high flexibility and customization capabilities. In some cases, 3D printing may require quick-assembly fasteners, primarily used to address issues such as print size limitations, filament connections, and component assembly.
[0003] Due to size limitations and printing process constraints, 3D printing equipment cannot print large components in a single step. For example, when 3D printing thin-walled architectural components, they need to be printed in sections and then securely connected using quick-connect fasteners. This solves the printing size problem while ensuring the integrity and strength of the components. Because new product testing often requires printing many 3D-printed test pieces, the size limitations of 3D printers often necessitate splicing many components, typically using clips, pins, threads, strips, or glue for connection.
[0004] However, in practice, the wide variety of screws is not user-friendly for beginners, and the pre-drilled hole sizes for screws made of different materials are different. For example, glue is the most commonly used connection method and can be used with all of the above connection methods. The disadvantage is that the fault tolerance is relatively low and some materials cannot be disassembled after being glued together.
[0005] Therefore, based on this, we need products that have positioning performance, are easy to disassemble and use flexibly. Now we need a new type of soft quick-connect fastener. Utility Model Content
[0006] The purpose of this utility model is to provide a soft, quick-connecting fastener. Using this device, the problems mentioned above are solved. However, in the use of fasteners, there are too many types of screws, which is not user-friendly for beginners. The screw hole sizes for different materials are different. For example, the most common connection method of glue can be used with all the above connection methods, but the disadvantage is that the fault tolerance is relatively low and some materials cannot be disassembled after being glued.
[0007] To achieve the above objectives, the technical solution provided by this utility model is as follows: a soft, quick-connecting fastener, comprising a multi-point connecting fastener and a four-point connecting fastener. Each of the multi-point and four-point connecting fasteners has a splicing plate on one side, and mounting slots are evenly distributed on one side of the splicing plate, with multiple sets of mounting slots. The multi-point and four-point connecting fasteners can be used to fix and connect two sets of splicing plates. The four-point connecting fastener includes a cross-shaped connecting body, with connecting columns fixedly connected to the bottom of the cross-shaped connecting body. Four sets of connecting columns are provided, and each set of connecting columns has a reverse gripping point fixedly connected to its bottom end. Each set of reverse gripping points matches the corresponding mounting slot. Both the four-point and multi-point connecting fasteners are made of soft, elastic material, possessing inward contraction force, and can tightly fit the components to be connected.
[0008] Preferably, the multi-point connecting fastener includes a long strip-shaped connecting body, with branch blocks evenly distributed on both sides of the long strip-shaped connecting body, and multiple sets of branch blocks are provided.
[0009] The design of the above structure, with its long strip connecting body and multiple sets of branch blocks, can provide linearly distributed multi-point connection support during splicing. On the one hand, this structure can adapt to the fixing requirements of long splicing edges, and the force is dispersed through the evenly distributed branch blocks, avoiding excessive local stress that could lead to loosening of the splice. On the other hand, the layout of multiple sets of branch blocks can enhance the bonding stability between the fastener and the splicing material, which is especially suitable for splicing large-area or irregularly shaped materials, and improves the overall connection strength.
[0010] Preferably, each group of branch blocks is fixedly connected to a connecting column at its bottom, and each group of connecting columns in the multi-point connecting fastener is fixedly connected to a reverse gripping point column at its bottom.
[0011] With the above-mentioned structural design, the connecting column at the bottom of the branch block and the reverse gripping column form a dual-function structure of positioning and fixing. When the connecting column is inserted into the mounting hole, the splicing position can be quickly calibrated to ensure that the two sets of plates are accurately aligned. The inverted conical design of the reverse gripping column can firmly grip the back of the plate after passing through the hole, and further lock it with the elastic contraction force of the soft material. This not only ensures the connection strength, but also avoids the problem of difficult disassembly caused by the excessive rigidity of traditional buckles, and realizes the convenient operation of "insertion to fix and pulling to separate".
[0012] Preferably, the connecting column is used to position the component to be connected and can be inserted into the mounting hole groove of the splicing plate. The reverse gripping point column is an inverted conical structure with a size larger than the connecting column. The reverse gripping point column is located on the other side of the outer connecting body and can pass through the hole of the component to be connected and grip its back side to achieve fixation.
[0013] The design employs the above-described structure, where the size difference between the connecting column and the reverse gripping column—with the reverse gripping column being larger than the connecting column—is the core of achieving efficient fixation. The precise positioning of the connecting column ensures error-free splicing. The inverted conical reverse gripping column naturally expands and conforms to the back of the board after passing through the slot, utilizing the elastic deformation of the soft material to compensate for minor errors in the slot size. This design adapts to a certain range of insufficient processing precision. It simplifies the installation process, eliminating the need for additional tool calibration, and enhances the versatility of the fasteners, making it suitable for splicing boards of different thicknesses or materials.
[0014] Preferably, the soft elastic material includes silicone, an elastomer, or a polyurethane elastomer.
[0015] The design of the above structure, using soft and elastic materials, gives the device excellent deformation capabilities: allowing the reverse gripping post to easily pass through the mounting hole slot and return to its shape, enabling quick assembly and disassembly; inward contraction force: ensuring a tight fit between the connecting body and the splicing plate, reducing gaps and improving connection stability; wear resistance and reusability: the flexibility and fatigue resistance of the material ensure that the fastener can be disassembled and reassembled multiple times without failure, reducing usage costs and meeting environmental and economic requirements.
[0016] Preferably, the multi-point connecting buckle is a cuttable splicing strip, which has a hybrid structure of tape and zipper and can be cut to any length according to usage requirements.
[0017] The design with the above structure allows for customizable length: users can freely cut it according to splicing needs to fit splicing edges of different lengths, avoiding material waste; ease of operation: the continuous distribution design similar to tape facilitates quick laying, and the multi-point fixing mode similar to zippers ensures uniform connection, making it especially suitable for non-professional users, such as DIY enthusiasts who can quickly get started; scene adaptability: it can be used for splicing straight boards, and can also be bent to adapt to slightly curved surfaces, expanding the application range of the fastener.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model discloses a soft quick-connect fastener. When 3D printing thin-walled building components, the quick-connect fastener is used to firmly connect the various parts. The soft quick-connect fastener of this application has accurate positioning. It achieves precise positioning by inserting the column into the hole of the part to be connected.
[0020] 2. The soft quick-connect fastener of this application has a high fault tolerance rate. The characteristics of the soft elastic material and the inverted cone design of the reverse gripping point can adapt to certain dimensional deviations and avoid breakage.
[0021] 3. The soft quick-assembly fastener of this application is flexible in assembly and disassembly, without relying on glue or complicated tools. The reverse gripping points can be easily disassembled, making it easy to reuse.
[0022] 4. The soft quick-connect buckle of this application has a wide range of applications and can be used in scenarios such as 3D printing large DIY parts, board DIY, model assembly, etc. Existing applications include quick-connect lampshades, storage boxes, candlesticks, aromatherapy boxes, etc. Attached Figure Description
[0023] Figure 1 This is an overall structural diagram of the present invention;
[0024] Figure 2 This is a structural diagram of the four-point connecting fastener and the multi-point connecting fastener of this utility model;
[0025] Figure 3 This is a structural diagram of the four-point connecting fastener of this utility model;
[0026] Figure 4 This is a diagram showing the multi-point connecting fastener and its physical structure.
[0027] Figure 5 This is a structural diagram of the icosahedron of this utility model, assembled using a four-point connecting fastener.
[0028] Figure 6 This is a structural diagram of the banana assembly of this utility model, which is assembled using a four-point connecting buckle and a multi-point connecting buckle.
[0029] Figure 7 This is a front view structural diagram of the four-point connection and multi-point connection fasteners and plates of this utility model.
[0030] Figure 8 This is a bottom view of the four-point connection and multi-point connection fasteners and plates of this utility model.
[0031] In the diagram: 1. Multi-point connecting fastener; 2. Four-point connecting fastener; 3. Spliced panels; 4. Mounting slots; 21. Cross-shaped connecting body; 22. Connecting column; 23. Reverse gripping column; 11. Long strip connecting body; 12. Branch block. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.
[0034] Combination Figures 1-8 A flexible quick-connecting fastener includes a multi-point connecting fastener 1 and a four-point connecting fastener 2. Each fastener has a splicing plate 3 on one side, and mounting slots 4 are evenly distributed on one side of the splicing plate 3. Multiple sets of mounting slots 4 are provided. The multi-point connecting fastener 1 and the four-point connecting fastener 2 can be used to splice and fix two sets of splicing plates 3. The four-point connecting fastener 2 includes a cross-shaped connecting body 21, with connecting posts 22 fixedly connected to the bottom of the cross-shaped connecting body 21. Four sets of connecting posts 22 are provided, and each set of four connecting posts 22 has a reverse gripping point post 23 fixedly connected to its bottom end. Each set of reverse gripping point posts 23 matches the corresponding mounting slot 4. Both the four-point connecting fastener 2 and the multi-point connecting fastener 1 are made of soft, elastic material, possessing inward contraction force, and can tightly fit the parts to be connected.
[0035] The present invention will be further described below with reference to the embodiments. Example
[0036] Please see Figures 1-8 The multi-point connecting fastener 1 includes a long strip-shaped connecting body 11, with branch blocks 12 evenly distributed on both sides of the long strip-shaped connecting body 11, and multiple sets of branch blocks 12 are provided.
[0037] Each branch block 12 is fixedly connected to a connecting column 22 at its bottom, and each connecting column 22 in the multi-point connecting fastener 1 is fixedly connected to a reverse gripping point column 23 at its bottom.
[0038] The connecting column 22 is used to position the parts to be connected and can be inserted into the mounting hole slot 4 of the splicing plate 3. The reverse gripping point column 23 has an inverted conical structure and its size is larger than that of the connecting column 22. The reverse gripping point column 23 is set on the other side of the outer connecting body and can pass through the hole of the part to be connected and grip its back side to achieve fixation.
[0039] Soft elastic materials include silicone, elastomers, or polyurethane elastomers.
[0040] The multi-point connecting buckle 1 is a cuttable splicing strip. The splicing strip has a hybrid structure of tape and zipper and can be cut to any length according to usage requirements.
[0041] In summary, the working principle is as follows: In the assembly of large 3D printed parts, holes matching the connecting column 22 are pre-set on the two printed plates to be connected. The connecting column 22 of the device is inserted into the mounting hole slot 4 of one of the splicing plates 3. At this time, the reverse gripping column 23 passes through the mounting hole slot 4 of the other splicing plate 3. The contraction force of the cross-shaped connecting body 21 and the inverted conical structure of the reverse gripping column 23 make the two printed parts tightly connected. If disassembly is required, simply pull the cross-shaped connecting body 21 outward to detach the reverse gripping column 23 from the back of the printed part.
[0042] This application uses our designed multi-point connecting fastener 1 and four-point connecting fastener 2. The main body material is made of soft silicone and polyurethane elastomer. The cross-shaped connecting body 21 is an elastic material with a certain inward contraction force. Multiple connecting columns 22 and reverse gripping point columns 23 are set on both sides of the cross-shaped connecting body 21. The connecting columns 22 mainly play a positioning role, while the reverse gripping point columns 23 are inverted cone-shaped gripping points that are slightly larger than the columns and can grip the back of the object.
[0043] Depending on the specific splicing work, we can choose between multi-point connecting fastener 1 and four-point connecting fastener 2 as fasteners to assemble and fix the two sets of splicing panels 3 together.
[0044] The soft quick-assembly fastener of this application is used in various scenarios, including DIY of sheet materials, DIY of large 3D parts, and quick fixing and disassembly of models. It not only has positioning performance, but is also easy to disassemble and use flexibly, improving the practicality of the splicing fastener. For DIY of sheet materials, multi-point splicing strips can be used. The appropriate length can be cut according to the size of the sheet material. After being positioned by the column, it can be fixed by the reverse gripping points to achieve quick assembly.
[0045] This invention effectively solves the defects of existing connection methods by combining soft materials with a special structure, providing a convenient and flexible solution for DIY splicing.
[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0047] 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 flexible quick-connect fastener, comprising a multi-point connecting fastener (1) and a four-point connecting fastener (2), characterized in that: The multi-point connecting fastener (1) and the four-point connecting fastener (2) are provided with splicing plates (3) on one side, and mounting holes (4) are evenly distributed on one side of the splicing plates (3). There are multiple sets of mounting holes (4). The multi-point connecting fastener (1) and the four-point connecting fastener (2) can be used to splice and fix the two sets of splicing plates (3). The four-point connecting fastener (2) includes a cross-shaped connecting body (21). The bottom of the cross-shaped connecting body (21) is fixedly connected to a connecting column (22). There are four sets of connecting columns (22). The bottom of each of the four sets of connecting columns (22) is fixedly connected to a reverse gripping point column (23). Each set of reverse gripping point columns (23) matches the mounting holes (4) at the corresponding position. The four-point connecting fastener (2) and the multi-point connecting fastener (1) are both made of soft elastic material and have inward shrinkage force, which can tightly fit the parts to be connected.
2. The flexible quick-connect fastener according to claim 1, characterized in that: The multi-point connecting fastener (1) includes a long strip connecting body (11), and branch blocks (12) are evenly distributed on both sides of the long strip connecting body (11). The branch blocks (12) are provided in multiple sets.
3. A flexible quick-connect fastener according to claim 2, characterized in that: Each of the branch blocks (12) is fixedly connected to a connecting column (22) at the bottom, and each of the connecting columns (22) in the multi-point connecting fastener (1) is fixedly connected to a reverse gripping column (23) at the bottom.
4. A flexible quick-connect fastener according to claim 3, characterized in that: The connecting column (22) is used to position the component to be connected. It can be inserted into the mounting hole groove (4) of the splicing plate (3). The reverse gripping column (23) is an inverted cone structure with a size larger than the connecting column (22). The reverse gripping column (23) is located on the other side of the outer connecting body and can pass through the hole of the component to be connected and grip its back side to achieve fixation.
5. A flexible quick-connect fastener according to claim 4, characterized in that: The soft elastic material includes silicone, elastomer, or polyurethane elastomer.
6. A flexible quick-connect fastener according to claim 5, characterized in that: The multi-point connecting buckle (1) is a cuttable splicing strip. The splicing strip has a hybrid structure of tape and zipper and can be cut to any length according to usage requirements.