Splicing type beach chair
The modular beach chair design, utilizing plug-in joints and roller adjustments, solves the problem of bulky and inconvenient storage, enabling quick assembly and disassembly to adapt to different usage needs, saving space and offering convenience and practicality.
Patent Information
- Application Number
- CN202520633877.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing beach chairs are bulky, take up a lot of space when stored, and are inconvenient due to the size of the seat.
The design features a modular beach chair that can be quickly assembled and disassembled by interlocking the first and second chair frames with pins, combined with adjustments to the upper and lower rollers and connecting rods. The chair fabric is adjusted by the rolling up and down of the upper and lower rollers and secured with nylon hooks and nylon fleece straps, while a support plate provides stability.
It enables rapid prototyping and storage of beach chairs, adapting to different usage needs, saving storage space, with a clever structure, convenient and practical, and ensuring stability and safety during use.
Smart Images

Figure CN223759491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of beach chairs, and in particular to a modular beach chair. Background Technology
[0002] Beach chairs are a type of leisure chair. They can be categorized into fabric beach chairs, casual beach chairs, outdoor beach chairs, and folding beach chairs, and are made of materials such as leather, stainless steel, and plastic. They are comfortable chairs for both outdoor leisure and indoor relaxation. Beach chairs are also known as folding chairs or leisure chairs. Their primary function is to allow people to lie down and relax, making them an ideal choice for sunbathing. Compared to the formality of ordinary chairs, beach chairs offer a more relaxed and comfortable feel.
[0003] Existing beach chairs are too large and take up a lot of space, especially the seat. When storing them, the overall storage space must be arranged according to the size of the seat, which greatly limits the storage of the beach chair and is very inconvenient. Summary of the Invention
[0004] The purpose of this invention is to provide a modular beach chair with a clever structure that allows for quick assembly and disassembly. The chair fabric can be adjusted according to usage needs, and there is no need to limit storage space based on the size of the chair fabric. This greatly saves storage space and is convenient and practical.
[0005] The technical solution to achieve the purpose of this utility model is as follows: This utility model has a first chair frame and a second chair frame; the first chair frame is provided with oppositely arranged rear support legs, each rear support leg being rotatably connected to the first chair frame and fixed to the first chair frame by a locking member after being rotated and unfolded; the second chair frame is provided with oppositely arranged front support legs, each front support leg being rotatably connected to the second chair frame and fixed to the first chair frame by a locking member after being rotated and unfolded; both the first chair frame and each rear support leg are provided with pins; the second chair frame is provided with... Each pin has a corresponding socket. The second chair frame is connected to the first chair frame via the insertion and connection of these pins and sockets. An upper roller is rotatably mounted on the upper end of the first chair frame, and a lower roller is rotatably mounted on the second chair frame at the end furthest from the rear support legs. A chair fabric is positioned between the upper and lower rollers, with one end of the fabric wound around the lower roller and the other end wound around the upper roller. Rotating shafts are located at both ends of the lower roller. The second chair frame has rotating holes that mate with each rotating shaft. A torsion spring is fitted onto each rotating shaft, with the torsion spring's ends... The upper roller shaft has connecting grooves coaxially arranged at both ends, acting on the rotating shaft and the rotating hole respectively. Each connecting groove has a connecting rod slidingly arranged in it. A compression spring is provided between each connecting rod and the corresponding connecting groove. The two ends of the compression spring act on the connecting groove and the connecting rod respectively. One end of the first chair frame has a connecting hole adapted to the connecting rod. One end of the upper roller shaft is rotatably connected to the first chair frame through the cooperation of the connecting rod and the connecting hole. The other end of the first chair frame has a connecting groove adapted to the connecting rod. The connecting rod at the other end of the upper roller shaft passes through the connecting groove. A rotating handle is provided at the end of the first chair frame near the connecting groove. The connecting rod passes through the connecting groove and connects to the rotating handle. A locking groove is provided at the end of the second chair frame away from the connecting groove. A locking rod slides in the locking groove. A return spring is sleeved on the locking rod. The two ends of the return spring act on the locking rod and the locking groove respectively. One end of the upper roller shaft has multiple locking holes distributed circumferentially along the axis of the upper roller shaft. The locking rod is fixed after being inserted into the corresponding locking hole by the continuous force of the return spring.
[0006] Furthermore, each connecting groove is provided with a corresponding limiting slide groove, the extension direction of each limiting slide groove is parallel to the axis of the upper roller shaft, and each connecting rod is provided with a limiting slider that is adapted to each limiting slide groove. Each connecting rod is slidably disposed in the connecting groove through the cooperation of each limiting slider and the limiting slide groove.
[0007] Furthermore, each connecting rod near the connecting slot is provided with a square connecting block, and the rotating handle is provided with a connecting port that matches the connecting block. The rotating handle is detachably fixed to the connecting rod through the plug-in cooperation of the connecting block and the connecting port. The upper roller shaft drives each chair cloth to roll up and down through the drive of the rotating handle.
[0008] Furthermore, both the first and second chair frames are provided with multiple support plates arranged parallel to the axis of the upper roller shaft.
[0009] Furthermore, each support plate has a nylon hook strap on its upper surface, and the back of the chair fabric has a nylon fleece strap. After the chair fabric is adjusted by the upper and lower rollers, it is fixedly installed on the first and second chair frames by the cooperation of the nylon hook straps and the nylon fleece straps.
[0010] This utility model has positive effects: (1) This utility model supports the unfolded first chair frame by setting a rear support foot on the first chair frame, and supports the unfolded second chair frame by setting a front support foot. Then, the first chair frame and the second chair frame are spliced together by the cooperation of pins and holes. The upper roller shaft can be installed and connected to the first chair frame by the cooperation of connecting rod and connecting hole, and the cooperation of connecting rod and connecting slot. The lower roller shaft is installed and connected to the second chair frame by the cooperation of various rotating shafts and rotating holes. The lower roller shaft is connected by the cooperation of rotating shaft and rotating hole. Then, the upper roller shaft unrolls the chair cloth by rotating the handle, and the lower roller shaft is rolled up by the continuous force of the torsion spring. This makes it suitable for the use needs of various users. By splicing, the beach chair can be quickly formed on the one hand, and the beach chair can be quickly stored by quick disassembly on the other hand. This effectively solves the problem of the large overall volume of the beach chair in the prior art occupying space when stored. Furthermore, by rolling up and down the upper roller shaft and the lower roller shaft, it can meet the user's needs for the chair cloth. It has good adjustability and applicability. The structure is ingenious, convenient and practical.
[0011] (2) This utility model sets a limiting slide groove that is set opposite to each other in the connecting groove, and sets a limiting slider that is adapted to each limiting slide groove on each connecting rod. Through the cooperation of each limiting slider and the limiting slide groove, on the one hand, the smooth sliding of the connecting rod can be guaranteed, and on the other hand, the sliding of the connecting rod can be limited to prevent the connecting rod from falling out of the corresponding connecting groove, which is safe and practical.
[0012] (3) This utility model provides a square connecting block on the connecting rod, and facilitates the installation and transmission of the rotating handle by connecting the connecting block with the connecting port on the rotating handle, thereby ensuring the smooth, efficient and convenient unrolling of the chair cloth.
[0013] (4) This utility model provides support for the user by setting multiple support plates on the first and second chair frames, ensuring the overall stability of the beach chair during use, which is efficient and convenient.
[0014] (5) This utility model sets nylon hooks on each support plate and sets nylon velvet on the back of the chair fabric. With the cooperation of nylon hooks and nylon velvet, the chair fabric can be fixed after it is properly adjusted, which makes it convenient for the user to sit down. In addition, during the adjustment or removal process, only the nylon hooks and nylon velvet need to be removed, which is convenient and practical. Attached Figure Description
[0015] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...
[0016] Figure 1 This is a front view of the overall structure of the modular beach chair of this utility model;
[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 This is a schematic diagram of the overall structure of the first chair frame in this utility model;
[0019] Figure 4 This is a cross-sectional view of the overall structure of the first chair frame in this utility model;
[0020] Figure 5 for Figure 4 Enlarged view of point B in the middle;
[0021] Figure 6 for Figure 4 Enlarged view of point C in the middle;
[0022] Figure 7 This is a sectional view of the overall structure of the second chair frame in the utility model;
[0023] The attached figures are labeled as follows:
[0024] First chair frame 1; rear support leg 11; locking slot 13; locking rod 14; return spring 15; connecting slot 16; rotating hole 17; torsion spring 18; connecting hole 19; second chair frame 2; front support leg 21; chair cloth 3; nylon velvet tape 31; upper roller shaft 4; locking hole 40; connecting slot 41; connecting rod 42; connecting block 421; compression spring 43; limiting slide groove 44; limiting slider 45; rotating handle 46; lower roller shaft 5; rotating shaft 51; support plate 6; nylon hook strap 61. Detailed Implementation
[0025] See Figures 1 to 7This utility model comprises a first chair frame 1 and a second chair frame 2. The first chair frame 1 has opposing rear support legs 11, each rear support leg 11 being rotatably connected to the first chair frame 1 and fixed to the first chair frame 1 by locking members after being rotated and unfolded. The second chair frame 2 has opposing front support legs 21, each front support leg 21 being rotatably connected to the second chair frame 2 and fixed to the first chair frame 1 by locking members after being rotated and unfolded. The first chair frame 1 and each rear support leg 11 are provided with pins. The second chair frame 2 is provided with insertion holes adapted to each pin. The second chair frame 2 is connected to the first chair frame 1 by each pin and... The insertion hole is connected to the first chair frame 1. An upper roller 4 is rotatably mounted on the upper end of the first chair frame 1. A lower roller 5 is rotatably mounted on the second chair frame 2 at the end furthest from the rear support leg 11. A chair fabric 3 is positioned between the upper roller 4 and the lower roller 5. One end of the chair fabric 3 is wound around the lower roller 5, and the other end is wound around the upper roller 4. Rotating shafts 51 are located at both ends of the lower roller 5. Rotating holes 17, adapted to each rotating shaft 51, are provided on the second chair frame 2. A torsion spring 18 is fitted onto each rotating shaft 51, with both ends of the torsion spring 18 acting on the rotating shaft 51 and the rotating hole 17, respectively. The upper roller 4... Each chair frame 1 is provided with a connecting groove 41 coaxially arranged with the upper roller shaft 4. A connecting rod 42 is slidably arranged in each connecting groove 41. A compression spring 43 is provided between each connecting rod 42 and the corresponding connecting groove 41. The two ends of the compression spring 43 act on the connecting groove 41 and the connecting rod 42 respectively. One end of the first chair frame 1 is provided with a connecting hole 19 adapted to the connecting rod 42. One end of the upper roller shaft 4 is rotatably connected to the first chair frame 1 through the cooperation of the connecting rod 42 and the connecting hole 19. The other end of the first chair frame 1 is provided with a connecting through groove 16 adapted to the connecting rod 42. The connecting rod 42 at the other end of the upper roller shaft 4 passes through the connecting through groove 16. One end of the upper frame 1 near the connecting groove 16 is provided with a rotating handle 46. The connecting rod 42 passes through the connecting groove 16 and is connected to the rotating handle 46. The second chair frame 2 is provided with a locking groove 13 at the end away from the connecting groove 16. A locking rod 14 is slidably provided in the locking groove 13. A return spring 15 is sleeved on the locking rod 14. The two ends of the return spring 15 act on the locking rod 14 and the locking groove 13 respectively. One end of the upper roller shaft 4 is provided with a plurality of locking holes 40 distributed circumferentially along the axis of the upper roller shaft 4. The locking rod 14 is inserted into the corresponding locking hole 40 by the continuous force of the return spring 15 to fix the upper roller shaft 4.
[0026] Each connecting groove 41 is provided with a limiting slide groove 44 that is arranged opposite to each other. The extension direction of each limiting slide groove 44 is parallel to the axis of the upper roller shaft 4. Each connecting rod 42 is provided with a limiting slider 45 that is adapted to each limiting slide groove 44. Each connecting rod 42 is slidably arranged in the connecting groove 41 through the cooperation of each limiting slider 45 and the limiting slide groove 44.
[0027] Each connecting rod 42 near the connecting slot 16 is provided with a square connecting block 421. The rotating handle 46 is provided with a connecting port that is adapted to the connecting block 421. The rotating handle 46 is detachably fixedly connected to the connecting rod 42 through the plug-in cooperation of the connecting block 421 and the connecting port. The upper roller shaft 4 drives each chair cloth 3 to roll up and down through the drive of the rotating handle 46.
[0028] The first chair frame 1 and the second chair frame 2 are each provided with a plurality of support plates 6 arranged parallel to the axis of the upper roller shaft 4. Each support rod is provided with a pin on both sides. The first chair frame 1 and the second chair frame 2 are each provided with a pin hole that matches the pin. Each support plate 6 is detachably installed on the first chair frame 1 and the second chair frame 2 through the cooperation of each pin and pin hole.
[0029] Each support plate 6 has a nylon hook strap 61 on its upper surface and a nylon fleece strap 31 on the back of the chair fabric 3. After the chair fabric 3 is adjusted by the upper roller shaft 4 and the lower roller shaft 5, it is fixedly installed on the first chair frame 1 and the second chair frame 2 by the cooperation of the nylon hook strap 61 and the nylon fleece strap 31.
[0030] The working principle of this utility model is as follows: In the process of using this utility model, the user can first open the first chair frame 1 and support it with the rear support legs 11. Each rear support leg 11 is rotatably connected to the first chair frame 1 and is fixed to the first chair frame 1 by locking parts after being rotated and unfolded. Then, the second chair frame 2 is opened and supported by the front support legs 21. Each front support leg 21 is fixed to the first chair frame 1 by locking parts after being rotated and unfolded. Then, each support plate 6 is installed on the first chair frame 1 and the second chair frame 2. Then, the upper roller shaft 4 is installed. During the installation process, the connecting rod 42 extends into the connecting hole 19 under the action of the compression spring 43 and rotates and engages with the connecting hole 19. The connecting rod 42 at the other end of the upper roller shaft 4 passes through the connecting groove 16 and is connected to the connecting port on the rotating handle 46 through the square connecting block 421. Then, the lower roller shaft 5 is installed and connected. The lower roller shaft 5 is rotatably connected to the second chair frame 2 through the cooperation of each rotating shaft 51 and rotating hole 17.
[0031] After installation, the chair fabric 3 can be rolled up and down according to the user's needs. During the rolling up and down process, the operator can drive the rotating handle 46 to rotate as needed, and then roll up the chair fabric 3. The lower roller 5 rolls up the chair fabric 3 through the continuous force of the torsion spring 18, thereby adjusting the chair fabric 3. After adjustment, the adjusted chair fabric 3 is fixed by the cooperation of the nylon hook strap 61 and the nylon fleece 31, thereby fixing the chair fabric 3 and making it convenient for the user to sit down. The structure is ingenious, convenient and practical.
[0032] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connectable beach chair having a first chair frame and a second chair frame; characterized by: The first chair frame is provided with rear support legs arranged oppositely, each rear support leg is rotationally connected to the first chair frame and is fixed to the first chair frame by a locking member after being unfolded, the second chair frame is provided with front support legs arranged oppositely, each front support leg is rotationally connected to the second chair frame, each front support leg is fixed to the first chair frame by a locking member after being unfolded, the first chair frame and each rear support leg are provided with a bolt, the second chair frame is provided with a bolt hole matched with each bolt, the second chair frame is spliced with the first chair frame through the insertion and cooperation of each bolt and the bolt hole, the upper end of the first chair frame is rotationally provided with an upper roller shaft, the end of the second chair frame away from the rear support leg is rotationally provided with a lower roller shaft, the upper roller shaft and the lower roller shaft are provided with a chair cloth therebetween, one end of the chair cloth is wound on the lower roller shaft, the other end of the chair cloth is wound on the upper roller shaft, the lower roller shaft is provided with a rotating shaft at both ends, the second chair frame is provided with a rotating hole matched with each rotating shaft, each rotating shaft is provided with a torsion spring, and both ends of the torsion spring act on the rotating shaft and the rotating hole, respectively, both ends of the upper roller shaft are provided with a connecting groove coaxially arranged with the upper roller shaft, each connecting groove is slidably provided with a connecting rod, each connecting rod and the corresponding connecting groove are provided with a compression spring, and both ends of the compression spring act on the connecting groove and the connecting rod, respectively, one end of the first chair frame is provided with a connecting hole matched with the connecting rod, one end of the upper roller shaft is rotationally connected to the first chair frame through the cooperation of the connecting rod and the connecting hole, the other end of the first chair frame is provided with a connecting through groove matched with the connecting rod, the connecting rod at the other end of the upper roller shaft penetrates through the connecting through groove, the end of the first chair frame close to the connecting through groove is provided with a rotating handle, and the connecting rod is connected with the rotating handle after penetrating through the connecting through groove, the end of the second chair frame away from the connecting through groove is provided with a locking through groove, the locking through groove is slidably provided with a locking rod, the locking rod is provided with a return spring, and both ends of the return spring act on the locking rod and the locking through groove, respectively, one end of the upper roller shaft is provided with a plurality of locking holes distributed along the axis of the upper roller shaft, and the locking rod is fixed to the upper roller shaft after penetrating into the corresponding locking hole under the continuous force of the return spring.
2. The splicable beach chair of claim 1, wherein: Each connecting groove is provided with oppositely arranged limiting sliding grooves, the extending direction of each limiting sliding groove is arranged in parallel with the axis of the upper roller shaft, each connecting rod is provided with a limiting sliding block matched with each limiting sliding groove, and each connecting rod is slidably arranged in the connecting groove through the cooperation of each limiting sliding block and the limiting sliding groove.
3. The splicable beach chair of claim 2, wherein: The connecting rod close to the connecting through groove in each connecting rod is provided with a square connecting block, the rotating handle is provided with a connecting port matched with the connecting block, and the rotating handle is detachably fixedly connected with the connecting rod through the insertion and cooperation of the connecting block and the connecting port, and the upper roller shaft drives each chair cloth to be wound or unwound through the driving of the rotating handle.
4. The splicable beach chair of claim 3, wherein: The first chair frame and the second chair frame are each provided with a plurality of support plates arranged in parallel with the axis of the upper roller shaft.
5. The splicable beach chair of claim 4, wherein: The upper surface of each support plate is provided with a nylon hook belt, the back surface of the chair cloth is provided with a nylon velvet belt, and the chair cloth is fixedly installed on the first chair frame and the second chair frame through the cooperation of the nylon hook belt and the nylon velvet belt after being adjusted by the upper roller shaft and the lower roller shaft.