Joint structure of sand beach frame
The design of the limiting and adjusting components simplifies the folding and disassembly process of the beach trolley, solves the problem of cumbersome operation in the existing technology, and achieves convenient connection and unlocking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROBUST BABY PROD (HUIZHOU) CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing beach trolleys are cumbersome to fold and assemble, especially the connection and disassembly of plates which require bolts and threads, making them inconvenient to use.
It adopts limit components and adjustment components, and realizes the movement of the locking pin through button operation, which simplifies the folding and disassembly process of the joint structure. It includes the design of two buttons, locking pin, locking seat reinforcement iron, joint B and segmented buttons, which facilitates quick connection and unlocking.
The beach rack can be easily folded and disassembled, simplifying the operation process and improving ease of use.
Smart Images

Figure CN224211117U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of joint structure technology, and in particular to a joint structure for a beach frame. Background Technology
[0002] Currently, beach trolleys generally adopt a quick-folding design. For example, the all-terrain trolley Pull-about can be folded to 1 / 3 of its original volume in a few seconds, making it easy to transport and store. The frame material is mostly lightweight aluminum alloy or thickened steel pipe, which reduces the weight while ensuring strength.
[0003] However, in actual use, the plates often need to be connected to the beach rack cart with bolts and threads, which makes it difficult to remove and install the beach rack cart. At the same time, when folding the beach rack, it needs to be moved to different positions to achieve different folding positions, which is quite troublesome and cumbersome. To address this, we propose a joint structure for the beach rack. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a beach frame joint structure.
[0005] This utility model is achieved by the following technical solution: a beach frame joint structure, including a handcart, the beach frame body is installed inside the handcart, the beach frame body includes two connecting frames, and limit components are installed on the front and back of the connecting frames.
[0006] The limiting component includes a connecting bracket, which is installed on one side of the trolley. Two buttons are installed inside the connecting bracket, and two locking pins abut against the surfaces of the two buttons. The bracket has a movable groove inside, and the two locking pins are slidably positioned inside the movable groove. The surfaces of the two locking pins and the inner wall of the movable groove are connected by two locking pin springs. The bottom of the two buttons abuts against a locking pin lock, and a locking pin lock spring is fixedly connected to the surface of the locking pin lock. A bracket reinforcing iron is installed on the surface of the bracket, and an adjustment component is installed on the surface of the bracket reinforcing iron.
[0007] The adjustment assembly includes joint B. The surface of the card holder reinforcing iron is mounted on the surface of joint B. A segmented button is installed inside joint B. Two vertical slots are opened inside joint B. Segmented springs are fixedly connected to the inner walls of the vertical slots. Two locking rods are fixedly connected to the bottom of the segmented button. The segmented springs are sleeved on the surface of the locking rods. Joint A is rotatably connected to the surface of joint B. A plate holder is mounted on the surface of joint A.
[0008] A plate is installed between two plate holders.
[0009] As a further improvement to the above solution, casters are installed at the four corners of the bottom of the handcart to facilitate the movement of the device.
[0010] As a further improvement to the above solution, a connector is installed at the bottom of the card holder, and the bottom of the connector is installed on the surface of the trolley to facilitate the support and connection of the beach frame body.
[0011] As a further improvement to the above solution, two mounting blocks are installed on the surface of the connecting frame, and a U-shaped frame is rotatably connected to the top of the mounting blocks to facilitate the shielding and protection of items.
[0012] As a further improvement to the above solution, rivets are installed on the inner wall of the joint B, and an installation groove is opened on the surface of the card seat. One end of the rivet is installed in the installation groove, which facilitates the installation and connection between the joint B and the card seat.
[0013] As a further improvement to the above solution, four limiting rods are fixedly connected to the surface of the card holder reinforcing iron. The limiting rods are set inside the card holder to ensure the stability of the connection between the card holder reinforcing irons.
[0014] As a further improvement to the above solution, a moving groove is provided inside the joint A, and a locking rod is abutted inside the moving groove. The locking rod is fixedly connected inside the segment button. A deflection groove for the locking rod to move is provided on the surface of the locking seat reinforcing iron. A limiting groove for the locking rod to move is provided inside the joint B, so as to facilitate rotation between joint A and joint B.
[0015] As a further improvement to the above solution, a through groove is provided on the inner wall of the card holder, and a fixing rod is fixedly connected to the surface of the card lock. The fixing rod is set inside the through groove to facilitate the extension of the fixing rod.
[0016] As a further improvement to the above solution, the card holder has an abutment groove inside, and the surfaces of the two buttons are connected to the abutment groove by a reset spring, which facilitates the reset of the two buttons.
[0017] As a further improvement to the above solution, the surface of the handcart is provided with an insertion port that matches the fixing rod, which facilitates the limiting connection between the handcart and the card seat.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model, by setting an adjustment component, requires pressing the second button first when folding the beach frame during use. The second button descends and squeezes the locking pin, causing the locking pin to move towards the segment button, so that the fixing rod disengages from the socket. Then, pressing the segment button moves the locking rod on the segment button into the limiting groove and the deflection groove, allowing joint B to rotate relative to joint A, thereby realizing the operation of folding the beach frame.
[0020] 2. This utility model, by setting a limiting component, allows for easy removal of the entire beach frame from the trolley when the two buttons on both sides are pressed simultaneously. The buttons descend and compress the locking pin, causing it to move towards the segment button, disengaging the fixing rod from the socket. This disconnects the trolley from the main body of the beach frame, allowing the main body of the beach frame to be removed. This makes the device easy to disassemble and install. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a structural schematic diagram of the connecting frame, card holder, and plate fixing seat of this utility model;
[0023] Figure 3 This is a schematic diagram of the main structure of the beach frame of this utility model;
[0024] Figure 4 This is an exploded view of the main body of the beach frame of this utility model.
[0025] Explanation of key symbols:
[0026] 1. Handcart; 2. Beach frame main body; 3. Connecting frame; 4. Card holder; 5. Two-way button; 6. Two-way latch; 7. Two-way latch spring; 8. Lock; 9. Lock spring; 10. Card holder reinforcing iron; 11. Joint B; 12. Segmented button; 13. Segmented spring; 14. Joint A; 15. Dinner plate holder; 16. Dinner plate; 17. Rivet. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0028] Example:
[0029] Please combine Figure 1-4 This embodiment of a beach frame joint structure includes a handcart 1, with four casters installed at the bottom corners of the handcart 1 for easy movement of the device. The handcart 1 contains a beach frame body 2, which includes two connecting frames 3. Two mounting blocks are mounted on the surface of the connecting frames 3, and a U-shaped frame is rotatably connected to the top of the mounting blocks for easy shielding and protection of items. Limiting components are installed on the front and back of the connecting frames 3.
[0030] The limiting assembly is used to limit the connection between the beach frame body 2 and the trolley 1. The limiting assembly includes a connecting bracket 4, with a connector installed at the bottom of the bracket 4. The bottom of the connector is installed on the surface of the trolley 1 to facilitate the support connection of the beach frame body 2. The surface of the trolley 1 has an insertion port that matches the fixing rod, facilitating the limiting connection between the trolley and the bracket 4. The bracket 4 is installed on one side of the trolley 1. Two buttons 5 are installed inside the connecting bracket 4. The inside of the bracket 4 has an abutment groove. The surface of the two buttons 5 and the abutment groove are connected by a return spring to facilitate the reset of the two buttons 5. The surface of the two buttons 5 abuts against two locking pins 6. The inside of the bracket 4 has... The device has a movable groove, and two locking pins 6 are slidably set inside the movable groove. The surfaces of the two locking pins 6 and the inner wall of the movable groove are connected by two locking pin springs 7. The bottom of the two buttons 5 abuts against a locking pin lock 8. A through groove is opened on the inner wall of the card seat 4. A fixing rod is fixedly connected to the surface of the locking pin lock 8. The fixing rod is set inside the through groove to facilitate the extension of the fixing rod. A locking pin lock spring 9 is fixedly connected to the surface of the locking pin lock 8. A card seat reinforcing iron 10 is installed on the surface of the card seat 4. Four limiting rods are fixedly connected to the surface of the card seat reinforcing iron 10. The limiting rods are set inside the card seat 4 to ensure the stability of the connection between the card seat reinforcing irons 10. An adjustment component is installed on the surface of the card seat reinforcing iron 10.
[0031] The adjustment assembly facilitates folding of the device. The adjustment assembly includes a joint B11, with a rivet 17 mounted on its inner wall. A mounting groove is formed on the surface of the mounting base 4, and one end of the rivet 17 is mounted in the mounting groove, facilitating the connection between the joint B11 and the mounting base 4. The surface of the mounting base reinforcing iron 10 is mounted on the surface of the joint B11. A segmented button 12 is installed inside the joint B11. Two vertical slots are formed inside the joint B11, and segmented springs 13 are fixedly connected to the inner walls of the vertical slots. The bottom of the segmented button 12... The unit is fixedly connected to two levers. A segmented spring 13 is sleeved on the surface of the lever. A joint A14 is rotatably connected to the surface of joint B11. A moving groove is opened inside joint A14, and the lever is abutted inside the moving groove. The lever is fixedly connected inside the segmented button 12. A deflection groove for the lever to move is opened on the surface of the lever support 10. A limiting groove for the lever to move is opened inside joint B11, which facilitates rotation between joint A14 and joint B11. A plate holder 15 is installed on the surface of joint A14.
[0032] A plate 16 is installed between two plate holders 15.
[0033] The implementation principle of a beach frame joint structure in this application embodiment is as follows: During use, when folding the beach frame, the second button 5 needs to be pressed first. The second button 5 descends and squeezes the locking pin 8, causing the locking pin 8 to move towards the segment button 12, so that the fixing rod disengages from the socket. Then, the segment button 12 is pressed, so that the locking rod on the segment button 12 moves into the limiting groove and the deflection groove, so that the joint B11 can rotate relative to the joint A14, thereby realizing the operation of folding the beach frame.
[0034] When disassembling the entire beach frame from the trolley 1, press the two buttons 5 on both sides simultaneously. The two buttons 5 will descend and press the locking pin 8, causing the locking pin 8 to move towards the segment button 12, thus disengaging the fixing rod from the socket. This cancels the connection between the trolley 1 and the main body 2 of the beach frame, allowing the main body 2 of the beach frame to be removed. This makes disassembly and assembly of the device relatively convenient.
[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A joint structure for a beach frame, characterized in that, Includes a handcart (1), the handcart (1) has a beach frame body (2) installed inside, the beach frame body (2) includes two connecting frames (3), and the connecting frames (3) have limit components installed on the front and back. The limiting component includes a connecting bracket (4), which is installed on one side of the handcart (1). Two buttons (5) are installed inside the connecting bracket (4). Two locking pins (6) are abutted on the surface of the two buttons (5). A movable groove is opened inside the bracket (4). The two locking pins (6) are slidably set inside the movable groove. The surface of the two locking pins (6) and the inner wall of the movable groove are connected by two locking pin springs (7). The bottom of the two buttons (5) abuts against a locking pin lock (8). A locking pin lock spring (9) is fixedly connected to the surface of the locking pin lock (8). A bracket reinforcing iron (10) is installed on the surface of the bracket (4). An adjustment component is installed on the surface of the bracket reinforcing iron (10). The adjustment assembly includes joint B (11), the surface of the card holder reinforcing iron (10) is mounted on the surface of joint B (11), a segment button (12) is installed inside joint B (11), two vertical slots are opened inside joint B (11), a segment spring (13) is fixedly connected to the inner wall of the vertical slot, two locking rods are fixedly connected to the bottom of the segment button (12), the segment spring (13) is sleeved on the surface of the locking rod, joint A (14) is rotatably connected to the surface of joint B (11), and a plate fixing seat (15) is mounted on the surface of joint A (14). A plate (16) is installed between two plate holders (15).
2. The beach frame joint structure as described in claim 1, characterized in that, The handcart (1) is equipped with casters at the four corners of its bottom.
3. The beach frame joint structure as described in claim 1, characterized in that, The bottom of the card holder (4) is fitted with a connector, and the bottom of the connector is mounted on the surface of the handcart (1).
4. The beach frame joint structure as described in claim 1, characterized in that, Two mounting blocks are mounted on the surface of the connecting frame (3), and a U-shaped frame is rotatably connected to the top of the mounting blocks.
5. A beach frame joint structure as described in claim 1, characterized in that, A rivet (17) is installed on the inner wall of the joint B (11), and an installation groove is provided on the surface of the card holder (4), with one end of the rivet (17) installed in the installation groove.
6. The beach frame joint structure as described in claim 1, characterized in that, The surface of the card holder reinforcing iron (10) is fixedly connected with four limiting rods, which are located inside the card holder (4).
7. A beach frame joint structure as described in claim 1, characterized in that, The joint A (14) has a moving groove inside, and a locking rod is abutted inside the moving groove. The locking rod is fixedly connected inside the segment button (12). The surface of the locking seat reinforcing iron (10) has a deflection groove for the locking rod to move. The joint B (11) has a limiting groove for the locking rod to move inside.
8. A beach frame joint structure as described in claim 1, characterized in that, The inner wall of the card holder (4) is provided with a through groove, and a fixing rod is fixedly connected to the surface of the card lock (8), and the fixing rod is set inside the through groove.
9. A beach frame joint structure as described in claim 1, characterized in that, The card holder (4) has an abutment groove inside, and the surfaces of the two buttons (5) are connected to the abutment groove by a reset spring.
10. A beach frame joint structure as described in claim 9, characterized in that, The surface of the handcart (1) is provided with a socket that is compatible with the fixing rod.