An independent suspension frame structure

Abstract

The utility model discloses an independent suspension frame structure, including main body frame, both sides of main body frame are connected with the mounting frame, the main body frame is connected with the shock absorber outside connection and is equipped with, a plurality of shock absorbers both ends are all provided with quick -wearing mechanism, quick -wearing mechanism includes plug -in rod and fixed cover, plug -in rod is fixed in main body frame with mounting frame outside respectively and is inserted with shock absorber both ends respectively, and fixed cover is inserted in a plurality of plug -in rod top, and the outer wall slip of fixed cover is equipped with slide rod, and this independent suspension frame structure is connected with the shock absorber outside connection through in main body frame and mounting frame and sets up quick -wearing mechanism, and the technical problem in maintenance and maintenance of modern traffic tool chassis system is effectively solved, especially in the maintenance demand under the driving environment of rugged uneven road surface, and this quick -wearing mechanism is composed of plug -in rod and fixed cover, and the plug -in rod of shock absorber both ends is inserted with the outside of main body frame and mounting frame, and the quick installation of shock absorber is realized through the clamping joint of fixed cover and plug -in rod.

Description

Technical Field

[0001] This utility model relates to the field of tricycle technology, and more specifically, to an independent suspension frame structure. Background Technology

[0002] With the widespread use of tricycles in urban and rural delivery, short-distance passenger transport, and personal travel, users are increasingly demanding higher levels of vehicle stability and comfort. On bumpy urban roads or rugged rural roads, the chassis system needs to effectively buffer vibrations and maintain vehicle stability. This not only affects the comfort of passengers but also directly impacts driving safety and cargo transport safety. However, the chassis structure of tricycles commonly used in the market has significant shortcomings in maintenance. Repair personnel often have to perform cumbersome operations in confined spaces, especially in time-sensitive scenarios such as road emergency rescue or peak delivery periods. This makes it difficult to quickly replace key buffer components, severely restricting vehicle operating efficiency and repair response speed.

[0003] In the aftermarket repair and routine maintenance of tricycles, fast and efficient maintenance solutions have become a core requirement for industry development. Under the traditional chassis structure design concept, technicians usually need to disassemble multiple related connecting parts to access the core buffer device. This not only makes the operation procedure complicated and time-consuming, but also increases additional labor costs and the risk of parts wear and tear. This design limitation makes daily inspection and routine maintenance extremely complicated, especially in heavy-duty tricycles or modified models. Repair personnel often need to use special tools or even temporarily remove peripheral functional parts to complete basic replacement and debugging work. Such problems not only prolong the vehicle's downtime, but also have an adverse impact on the overall service life and performance of the tricycle. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides an independent suspension frame structure to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an independent suspension frame structure, including a main frame, with mounting brackets connected to both sides of the main frame. Shock absorbers are connected to the outer sides of the main frame and the connecting brackets. Multiple shock absorbers have quick-release mechanisms at both ends. Each quick-release mechanism includes a rod and a fixing sleeve. The rods are fixed to the outer sides of the main frame and the mounting brackets and are inserted into both ends of the shock absorbers. The fixing sleeve is inserted into the top of the multiple rods. A sliding rod is slidably provided on the outer wall of the fixing sleeve. Multiple sliding rods are provided, and each has a locking block fixed at its bottom. A locking groove is opened on the outer wall of the rod, and multiple locking grooves are provided, each engaging with a locking block. A push block is fixed at the top of each sliding rod. Tires are connected to the outer ends of the multiple mounting brackets.

[0008] The present invention is further configured such that a limiting mechanism is provided on the outer side of the fixed sleeve, the limiting mechanism including a limiting sleeve and a rotating sleeve, the limiting sleeve sliding on the outer wall of the fixed sleeve, the rotating sleeve rotating on the outer wall of the fixed sleeve, a mating sleeve fixedly provided on the top surface of the limiting sleeve, the inner wall of the rotating sleeve and the outer wall of the mating sleeve being threadedly connected, the sliding position of the limiting sleeve can be controlled by the threaded connection between the rotating sleeve and the mating sleeve, thereby achieving precise operation and stable locking of the quick-release mechanism.

[0009] The present invention is further configured such that a positioning sleeve is fixedly provided on the top surface of the rotating sleeve, and a sliding hole is provided on the inner wall of the positioning sleeve. Multiple sets of sliding holes are provided, and each set of sliding holes is connected to a push spring. A positioning block is fixedly provided on the top of each set of push springs. The multiple sets of positioning blocks slide in the multiple sets of sliding holes respectively. A positioning groove is provided on the outer wall of the fixed sleeve. Multiple sets of positioning grooves are provided and abut against the multiple sets of positioning blocks respectively. This positioning structure enables the rotating sleeve to maintain segmented positioning during rotation, preventing accidental loosening due to vibration or impact, and improving the safety and stability of the overall mechanism.

[0010] The present invention is further configured such that the outer wall of the fixed sleeve is provided with a movable groove, and the movable groove is provided in multiple sets and is slidably connected to multiple sets of push blocks respectively. Through the sliding connection between the movable groove and the push block, it is ensured that the push block can move in a fixed direction under the push of the limiting sleeve, thereby improving the operating accuracy and reliability of the locking mechanism.

[0011] The present invention is further configured such that all of the sliding rods are polygonal. The polygonal design of the sliding rods can prevent rotation when subjected to torque, ensuring that the force transmission is more direct and effective, and enhancing the torsional rigidity of the overall structure.

[0012] The present invention is further provided that each of the outer walls of the multiple sets of locking blocks is connected to the inner wall of the fixing sleeve with a tension spring. The design of the tension spring allows the locking blocks to automatically spring back and disengage from the slot when they are released from the locking state, thereby achieving a quick disassembly function and greatly improving maintenance efficiency.

[0013] The present invention is further configured such that a guide block is fixedly provided on the inner wall of the limiting sleeve, and a guide groove is provided on the outer wall of the fixed sleeve. Multiple sets of guide blocks and guide grooves are provided and slidably connected. The slidable connection between the guide blocks and guide grooves ensures that the limiting sleeve maintains linear motion without deflection when moving along the fixed sleeve, thereby improving the stability and accuracy of the mechanism operation.

[0014] The present invention is further configured such that a positioning hole is provided at the top of the insertion rod, and a positioning rod is fixedly provided on the inner wall of the fixing sleeve. Both the positioning hole and the positioning rod are polygonal. A gasket is provided at the bottom of multiple sets of fixing sleeves. The multiple sets of gaskets are inserted into the outer wall of the insertion rod. The design of the polygonal positioning hole and the positioning rod prevents the fixing sleeve and the insertion rod from rotating relative to each other. The setting of the gaskets ensures a tight fit between the shock absorber and the connecting parts, effectively reducing gap wear and noise problems.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an independent suspension frame structure, which has the following advantages:

[0017] 1. This independent suspension frame structure effectively solves the technical challenges in the maintenance of modern vehicle chassis systems by connecting shock absorbers to the outside of the main frame and mounting frame and setting up a quick-installation mechanism, especially for maintenance needs in rough and uneven road driving environments. The quick-installation mechanism consists of a plug rod and a fixing sleeve. The two ends of the shock absorber are respectively plugged into the plug rods on the outside of the main frame and mounting frame. The shock absorber is quickly installed by the snap-fit ​​between the fixing sleeve and the plug rod. At the same time, the sliding rod drives the locking block to engage with the slot on the outer wall of the plug rod to further enhance the connection stability. This allows technicians to efficiently complete the installation and removal of shock absorbers in a limited space, greatly improving maintenance efficiency in time-sensitive scenarios such as emergency road rescue or event maintenance.

[0018] 2. The structure also features a sophisticated limiting mechanism, consisting of a limiting sleeve and a rotating sleeve. The sliding position of the limiting sleeve is controlled by the threaded connection between the rotating sleeve and the mating sleeve, thereby achieving precise control of the sliding rod and the locking block. At the same time, the positioning sleeve on the top surface of the rotating sleeve has a positioning structure consisting of a positioning block and a push spring, which enables the rotating sleeve to maintain a stable segmented positioning effect during rotation, effectively preventing accidental loosening caused by vibration or impact. This multi-layered safety design provides an ideal solution for the rapid response needs of the automotive aftermarket and professional repair fields, making routine inspections and daily maintenance simple and efficient. Basic replacement and adjustment work can be completed without the need for special tools or the removal of other functional components.

[0019] 3. Furthermore, this independent suspension frame structure forms a complete quick-release mechanism through the use of polygonal sliding rods, spring-connected locking blocks, guide blocks and guide grooves cooperating with limiting sleeves, and polygonal positioning holes and positioning rods. When the rotating sleeve is rotated, it can drive the limiting sleeve to release its contact with the push block, and the elastic force of the tension spring can make the locking block automatically disengage from the slot, realizing the quick separation of the fixing sleeve and the insertion rod. The whole process is simple and smooth, greatly reducing the operation difficulty and time cost for technicians. At the same time, the design of the shims ensures a tight fit between the shock absorber and the connecting parts, effectively reducing wear and noise problems caused by gaps, and improving the service life and overall performance of the vehicle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an independent suspension frame structure according to the present invention;

[0021] Figure 2 This is a schematic diagram of the disassembly structure of the shock absorber in this utility model;

[0022] Figure 3 This is a cross-sectional view of the limiting sleeve in this utility model;

[0023] Figure 4 This is a cross-sectional view of the fixing sleeve in this utility model;

[0024] Figure 5 This is a cross-sectional view of the positioning sleeve in this utility model.

[0025] In the diagram: 1. Main frame; 2. Mounting frame; 3. Shock absorber; 4. Insert rod; 5. Fixing sleeve; 6. Slide rod; 7. Locking block; 8. Locking groove; 9. Push block; 10. Tire; 11. Limiting sleeve; 12. Rotating sleeve; 13. Mating sleeve; 14. Positioning sleeve; 15. Sliding hole; 16. Push spring; 17. Positioning block; 18. Positioning groove; 19. Movable groove; 20. Tension spring; 21. Guide block; 22. Guide groove; 23. Positioning hole; 24. Positioning rod; 25. Washer. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 An independent suspension frame structure includes a main frame 1, with mounting brackets 2 connected to both sides of the main frame 1. Shock absorbers 3 are connected to the outer sides of the main frame 1 and the connecting brackets. Multiple shock absorbers 3 are provided with quick-release mechanisms at both ends. The quick-release mechanism includes insert rods 4 and fixing sleeves 5. The insert rods 4 are respectively fixed to the outer sides of the main frame 1 and the mounting brackets 2 and are respectively inserted into both ends of the shock absorbers 3. The fixing sleeves 5 are inserted into the top of the multiple insert rods 4. The outer wall of the fixing sleeves 5 is provided with sliding rods 6. Multiple sliding rods 6 are provided, and each has a locking block 7 fixed at its bottom end. The outer wall of the insert rods 4 is provided with locking grooves 8. Multiple locking grooves 8 are provided and are respectively engaged with multiple locking blocks 7. Each of the multiple sliding rods 6 has a push block 9 fixed at its top end. Each of the multiple mounting brackets 2 is connected to a tire 10 at its outer end.

[0030] A limiting mechanism is provided on the outer side of the fixed sleeve 5. The limiting mechanism includes a limiting sleeve 11 and a rotating sleeve 12. The limiting sleeve 11 slides on the outer wall of the fixed sleeve 5, and the rotating sleeve 12 rotates on the outer wall of the fixed sleeve 5. A mating sleeve 13 is fixedly provided on the top surface of the limiting sleeve 11. The inner wall of the rotating sleeve 12 and the outer wall of the mating sleeve 13 are connected by threads. This structure realizes the conversion of rotational motion into linear motion of the limiting sleeve 11 through the threaded connection between the rotating sleeve 12 and the mating sleeve 13, so that the limiting sleeve 11 can slide along the outer wall of the fixed sleeve 5, thereby controlling the working state of the locking mechanism.

[0031] A positioning sleeve 14 is fixedly provided on the top surface of the rotating sleeve 12. The inner wall of the positioning sleeve 14 is provided with sliding holes 15. Multiple sets of sliding holes 15 are provided, and each set of sliding holes 15 is connected to a push spring 16. The top of each set of push springs 16 is fixedly provided with a positioning block 17. The multiple sets of positioning blocks 17 slide in the multiple sets of sliding holes 15 respectively. The outer wall of the fixed sleeve 5 is provided with a positioning groove 18. Multiple sets of positioning grooves 18 are provided and abut against the multiple sets of positioning blocks 17 respectively. This mechanism adopts an elastic positioning structure. The push spring 16 pushes the positioning block 17 to form a locking with the positioning groove 18, realizing the segmented rotation positioning of the rotating sleeve 12 and preventing the rotating sleeve 12 from being accidentally loosened due to vibration.

[0032] The outer wall of the fixed sleeve 5 is provided with a movable groove 19. The movable groove 19 is provided with multiple sets and is slidably connected to multiple sets of push blocks 9 respectively. The movable groove 19 provides a sliding track for the push blocks 9, ensuring that the push blocks 9 move along a predetermined path under the action of the limiting sleeve 11, thereby driving the slide rod 6 and the locking block 7 to complete the locking or releasing action.

[0033] All sets of slide rods 6 are set as polygons. The polygonal design of slide rods 6 can prevent rotational slippage during force transmission, ensuring more stable and reliable force transmission, while also enhancing the torsional rigidity of the overall structure.

[0034] Each set of locking blocks 7 has a tension spring 20 connected between its outer wall and the inner wall of the fixing sleeve 5. The tension spring 20 provides the locking block 7 with a return force. When the limiting sleeve 11 releases the pressure on the push block 9, the tension spring 20 automatically pulls the locking block 7 away from the slot 8, realizing a quick release function.

[0035] The inner wall of the limiting sleeve 11 is fixedly provided with a guide block 21, and the outer wall of the fixed sleeve 5 is provided with a guide groove 22. Multiple sets of guide blocks 21 and guide grooves 22 are provided and slidably connected. The guide blocks 21 and guide grooves 22 form a guiding system to ensure that the limiting sleeve 11 slides smoothly in a straight line on the outer wall of the fixed sleeve 5, preventing it from deflecting or shaking, and improving the accuracy of the mechanism operation.

[0036] The top of the insertion rod 4 has a positioning hole 23, and the inner wall of the fixing sleeve 5 is fixed with a positioning rod 24. Both the positioning hole 23 and the positioning rod 24 are polygonal. The bottom of multiple sets of fixing sleeves 5 are provided with gaskets 25. Multiple sets of gaskets 25 are inserted into the outer wall of the insertion rod 4. The polygonal design of the positioning hole 23 and the positioning rod 24 realizes directional insertion, preventing relative rotation between the fixing sleeve 5 and the insertion rod 4. The gaskets 25 play a sealing and buffering role, ensuring a tight fit between the shock absorber 3 and the connecting parts.

[0037] In this embodiment, when the shock absorber 3 needs to be installed, the two ends of the shock absorber 3 are respectively connected to the insert rods 4 provided on the outer walls of the main frame 1 and the mounting frame 2. Then, the pad is inserted into the insert rod 4 and abuts against the outer wall of the shock absorber 3. Then, the fixing sleeve 5 is inserted into the insert rod 4. The positioning rod 24 is positioned and inserted into the positioning hole 23. The rotating sleeve 12 is rotated to make it threadedly engaged with the mating sleeve 13, thereby pushing the limiting sleeve 11 to slide along the fixing sleeve 5 and abut against the top of the multiple sets of push blocks 9. The multiple sets of push blocks 9 slide along the movable groove 19 and push the locking block 7 to abut in the locking groove 8 through the slide rod 6. At the same time, the multiple sets of locking blocks 7 stretch the tension spring 20, thereby locking the fixing sleeve 5 and the insert rod 4. The bottom end of the fixing sleeve 5 presses the pad 25 against the outer wall of the shock absorber 3. The multiple sets of push springs 16 push the positioning block 17 to abut in the positioning groove 18 to position the rotating sleeve 12.

[0038] More specifically, when the shock absorber 3 needs to be disassembled, the rotating sleeve 12 and the mating sleeve 13 are threaded together, causing the limiting sleeve 11 to release its contact with the multiple sets of push blocks 9. The multiple sets of tension springs 20 pull the locking block 7 out of the locking groove 8, releasing the locking between the fixing sleeve 5 and the insertion rod 4. Then the fixing sleeve 5 and the insertion rod 4 can be separated, and the shock absorber 3 can be disassembled. When the rotating sleeve 12 rotates, it drives the positioning sleeve 14 to rotate. The multiple sets of positioning grooves 18 push the positioning block 17 to disengage and slide in the sliding hole 15. At the same time, the multiple sets of positioning blocks 17 squeeze the multiple sets of push springs 16 respectively. When the positioning block 17 moves into the next set of positioning grooves 18, the multiple sets of push springs 16 reset and push the positioning block 17 to abut in the positioning groove 18. The positioning sleeve 14 continues to rotate, and the multiple sets of positioning blocks 17 continue to move in the multiple sets of positioning grooves 18.

[0039] In summary, during the use or operation of the overall equipment: when it is necessary to install the shock absorber 3, the two ends of the shock absorber 3 are respectively connected to the insert rods 4 set on the outer wall of the main frame 1 and the mounting frame 2. Then, the pad is inserted into the insert rod 4 and abuts against the outer wall of the shock absorber 3. Then, the fixing sleeve 5 is inserted into the insert rod 4 and positioned by the positioning rod 24 and the positioning hole 23. The rotating sleeve 12 is rotated to make it threaded with the mating sleeve 13, thereby pushing the limiting sleeve 11 to slide along the fixing sleeve 5 and abut against the top of the multiple sets of push blocks 9. The multiple sets of push blocks 9 slide along the movable groove 19 and push the locking block 7 to abut in the locking groove 8 through the slide rod 6. At the same time, the multiple sets of locking blocks 7 stretch the tension spring 20, thereby locking the fixing sleeve 5 and the insert rod 4. The bottom of the fixing sleeve 5 presses the pad 25 against the outer wall of the shock absorber 3. The multiple sets of push springs 16 push the positioning block 17 to abut in the positioning groove 18 to position the rotating sleeve 12.

[0040] When the shock absorber 3 needs to be disassembled, the rotating sleeve 12 and the mating sleeve 13 are threaded together, which causes the limiting sleeve 11 to release the contact with the multiple sets of push blocks 9. The multiple sets of tension springs 20 pull the locking block 7 out of the locking groove 8, releasing the locking between the fixing sleeve 5 and the insertion rod 4. Then the fixing sleeve 5 and the insertion rod 4 can be separated to disassemble the shock absorber 3. When the rotating sleeve 12 rotates, it drives the positioning sleeve 14 to rotate. The multiple sets of positioning grooves 18 push the positioning block 17 to disengage and slide in the sliding hole 15. At the same time, the multiple sets of positioning blocks 17 squeeze the multiple sets of push springs 16 respectively. When the positioning block 17 moves into the next set of positioning grooves 18, the multiple sets of push springs 16 reset and push the positioning block 17 to abut in the positioning groove 18. The positioning sleeve 14 continues to rotate, and the multiple sets of positioning blocks 17 continue to move in the multiple sets of positioning grooves 18.

[0041] Of all the solutions mentioned above, those involving connections between two components can be selected based on the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other well-known connection methods. These will not be elaborated on here. For all the fixed connections mentioned above, welding is the preferred option.

[0042] In all the solutions mentioned above, the operation of electrical components, unless otherwise specified, is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and wiring connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here. The specific models and specifications of the electrical components involved in this solution need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, and therefore will not be described in detail.

[0043] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing well-known technologies, and this utility model will not describe them in detail.

[0044] 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. An independent suspension frame structure, comprising a main frame (1), characterized in that: The main frame (1) is connected to mounting brackets (2) on both sides. The main frame (1) and the connecting bracket are connected to shock absorbers (3) on the outside. Multiple sets of shock absorbers (3) are provided with quick-installation mechanisms at both ends. The quick-installation mechanism includes a plug rod (4) and a fixing sleeve (5). The plug rod (4) is fixed to the outside of the main frame (1) and the mounting bracket (2) and is inserted into both ends of the shock absorber (3). The fixing sleeve (5) is inserted into the top of multiple sets of plug rods (4). The outer wall of the fixing sleeve (5) is provided with a sliding rod (6). Multiple sets of sliding rods (6) are provided and each bottom end is fixed with a locking block (7). The outer wall of the plug rod (4) is provided with a slot (8). Multiple sets of slots (8) are provided and each engages with multiple sets of locking blocks (7). Each top end of multiple sets of sliding rods (6) is fixed with a push block (9). The outer ends of multiple sets of mounting brackets (2) are connected with tires (10).

2. The independent suspension frame structure according to claim 1, characterized in that: The fixed sleeve (5) is provided with a limiting mechanism on the outside. The limiting mechanism includes a limiting sleeve (11) and a rotating sleeve (12). The limiting sleeve (11) slides on the outer wall of the fixed sleeve (5), and the rotating sleeve (12) rotates on the outer wall of the fixed sleeve (5). The top surface of the limiting sleeve (11) is fixedly provided with a mating sleeve (13). The inner wall of the rotating sleeve (12) and the outer wall of the mating sleeve (13) are threaded together.

3. The independent suspension frame structure according to claim 2, characterized in that: The rotating sleeve (12) is fixedly provided with a positioning sleeve (14) on its top surface. The inner wall of the positioning sleeve (14) is provided with a sliding hole (15). The sliding hole (15) is provided with multiple sets and each of the inner walls is connected with a push spring (16). The top of each of the multiple sets of push springs (16) is fixedly provided with a positioning block (17). The multiple sets of positioning blocks (17) slide in the multiple sets of sliding holes (15). The outer wall of the fixed sleeve (5) is provided with a positioning groove (18). The positioning groove (18) is provided with multiple sets and abuts against the multiple sets of positioning blocks (17).

4. The independent suspension frame structure according to claim 3, characterized in that: The outer wall of the fixed sleeve (5) is provided with a movable groove (19), and the movable groove (19) is provided in multiple sets and is slidably connected to multiple sets of push blocks (9).

5. The independent suspension frame structure according to claim 4, characterized in that: All of the sliders (6) are set as polygons.

6. The independent suspension frame structure according to claim 5, characterized in that: Tension springs (20) are provided between the outer wall of the multiple sets of locking blocks (7) and the inner wall of the fixing sleeve (5).

7. The independent suspension frame structure according to claim 6, characterized in that: The inner wall of the limiting sleeve (11) is fixedly provided with a guide block (21), and the outer wall of the fixing sleeve (5) is provided with a guide groove (22). The guide block (21) and the guide groove (22) are provided in multiple sets and are slidably connected.

8. The independent suspension frame structure according to claim 7, characterized in that: The top of the insertion rod (4) is provided with a positioning hole (23), and the inner wall of the fixing sleeve (5) is fixed with a positioning rod (24). The positioning hole (23) and the positioning rod (24) are both polygonal. The bottom of multiple sets of fixing sleeves (5) are provided with gaskets (25), and multiple sets of gaskets (25) are inserted into the outer wall of the insertion rod (4).

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