Draw-bar box draw bar with intelligent telescopic function

Abstract

The utility model discloses a draw-bar box draw bar with an intelligent telescopic function, which relates to the technical field of luggage accessories and comprises a base and a fixed column arranged above the front end of the base. An adjusting column is embedded in the upper end of the fixing column, guide grooves are formed in the front side and the rear side of the interior of the fixing column, an intelligent telescopic mechanism is arranged on the fixing column, a guide block is fixedly installed on the front side face of the lower end of the adjusting column, and the guide block is matched with the guide grooves. When the length of the draw bar of the draw-bar box needs to be adjusted, the control motor can be started through the touch switch on the connecting handle, the control motor drives the straight tooth gear to rotate, the straight tooth gear is meshed with the straight tooth rack to drive the straight tooth rack to move, and the adjusting column is matched with the guide grooves in the two sides of the interior of the fixing column through the guide blocks on the two sides to move. It is ensured that the adjusting column can only stretch out and draw back stably in the preset direction, convenient and automatic stretching out and drawing back are achieved, and operation efficiency, comfort and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of luggage accessories technology, specifically to a smart telescopic luggage handle. Background Technology

[0002] In modern travel, rolling suitcases have become a common way for people to carry their luggage. As a key component of rolling suitcases, the performance of the handle directly affects the user experience. However, existing rolling suitcase handles have some shortcomings.

[0003] Traditional suitcase handles mostly rely on manual operation for extension and retraction. Users need to manually pull or press the handle, which is cumbersome. This method is extremely inconvenient when carrying a lot of luggage or when both hands are limited. Furthermore, the handle cannot be adjusted to a personalized length based on the user's height, usage habits, or other factors. Regardless of the user's height, they can only use a few fixed handle lengths. Prolonged use may lead to physical discomfort. For example, tall users using shorter handles need to bend over to walk, which can easily cause back pain; short users using longer handles find them less maneuverable.

[0004] For example, the adjustable height trolley handle of a suitcase with announcement number CN206896013U has a groove on one side of the main tube, a buffer plate on the surface of the main tube, a trolley handle on the surface of the buffer plate, a telescopic column on one side of the ball head, and a switch in the middle of the handle. The groove on one side of the main tube allows the ball head to fit perfectly with it, thereby achieving the function of freely telescopic trolley handle, suitable for all people.

[0005] For example, a novel suitcase handle with announcement number CN221533079U includes a second telescopic rod and a limiting hole. The grip handle includes a handle body, and the locking mechanism includes a locking pin device disposed in the second telescopic rod, and a locking drive device disposed on the grip handle for driving the locking pin device. The locking pin device corresponds to the limiting hole. In use, the aforementioned suitcase handle is cumbersome to operate manually, cannot be adjusted in a personalized manner, and lacks anti-pinch function, making it inconvenient to use and posing safety hazards. However, it also has other problems. For example, when the suitcase is traveling on uneven ground or encountering bumps, the traditional handle cannot effectively absorb the impact force, and the vibration will be directly transmitted to the user's hand. Long-term use may lead to hand injuries. The vibration of the suitcase will put a lot of pressure on the hand, causing discomfort in a short time. When the traditional handle encounters sudden vibration or resistance, the hand muscles will be suddenly stressed, increasing the risk of muscle strain. When the suitcase suddenly hits an obstacle, the hand muscles may be strained due to sudden force. Utility Model Content

[0006] The purpose of this utility model is to provide a smart telescopic suitcase handle to solve the problems mentioned in the background art, such as cumbersome manual operation of suitcase handles, inability to personalize the length adjustment, lack of anti-pinch function, inconvenience and safety hazards, and inability of the handle to effectively buffer vibration, which leads to easy hand injury and increased risk of muscle strain.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a smart telescopic suitcase handle, comprising a base and a fixed post disposed above the front end of the base; two fixed posts are evenly spaced about the base as the center of symmetry, and an adjusting post is nested inside the upper end of the fixed post, and guide grooves are provided on the front and rear sides inside the fixed post; a smart telescopic mechanism is provided on the fixed post, and a guide block is fixedly installed on the front side of the lower end of the adjusting post, and the guide block cooperates with the guide groove; a movable plate is slidably mounted above the front end of the base, and fixed posts are fixedly mounted on both sides of the upper end of the movable plate; buffer rods are rotatably mounted on both sides inside the movable plate; a hand buffer mechanism is provided at the upper end of the base, and a buffer post is slidably mounted in the middle of the movable plate.

[0008] Furthermore, the intelligent telescopic mechanism includes a spur rack fixedly installed on the inner side of the lower end of the adjusting column, a control motor fixedly installed on the inner side of the upper end of the fixed column, and a spur gear fixedly installed on the output end of the control motor, wherein the spur gear and the spur rack cooperate with each other.

[0009] Furthermore, a connecting handle is fixedly installed on the upper end of the adjusting column, and a touch switch is provided on the right side of the front end of the connecting handle, and the touch switch is connected to the control motor.

[0010] Furthermore, a control chip is fixedly installed in the middle of the front end of the moving plate, and the control chip is connected to the control motor. An acceleration sensor is provided on the right end of the control chip, and a distance sensor is provided on the left end of the control chip. The control chip, the acceleration sensor, and the distance sensor are connected to each other.

[0011] Furthermore, the hand cushioning mechanism includes a first spring installed on the upper outer side of the cushioning column, and the lower end of the first spring is installed on the upper side of the movable plate. Cushioning cylinders are rotatably installed on both sides of the upper end of the cushioning column, and cushioning oil is provided inside the cushioning cylinders.

[0012] Furthermore, a buffer rod is installed through the upper end of the buffer cylinder, a buffer plug is movably installed inside the buffer cylinder, and the upper end of the buffer plug is fixedly installed at the lower end of the buffer rod, and a guide hole is opened on the buffer plug.

[0013] Furthermore, a second spring is provided on the outer side of the buffer rod, with the lower end of the second spring located on the upper end of the buffer plug, and the upper end of the second spring installed inside the upper part of the buffer cylinder.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. When it is necessary to adjust the length of the trolley handle, the touch switch on the handle can be connected to start the control motor. The control motor drives the spur gear to rotate. The spur gear meshes with the spur rack to drive the spur rack to move. The adjusting column moves through the guide blocks on both sides and the guide grooves on both sides inside the fixed column, ensuring that the adjusting column can only extend and retract smoothly in the predetermined direction, realizing convenient automatic extension and retraction, improving operating efficiency, comfort and safety.

[0016] Furthermore, it can precisely adjust to the most suitable length based on factors such as the user's height and exercise status. This helps users maintain a natural and comfortable walking posture, reduces physical fatigue, lowers the risk of injury caused by improper posture, and improves the user experience. It can automatically adjust the length according to the actual scenario without the need for manual operation by the user, greatly improving the convenience of use.

[0017] Furthermore, users can easily extend and retract the lever automatically by simply touching the touch switch on the handle, without having to manually stretch or press it. When the lever encounters an obstacle during extension or retraction, such as when the distance sensor detects that the obstacle is too close and the suitcase is in motion, the lever will automatically stop or retract in the opposite direction, effectively avoiding the risk of the user's fingers being pinched.

[0018] 2. The buffer column compresses the first spring, which in turn cushions the compression of the buffer column. The buffer column pushes the buffer cylinders on both sides, and the buffer cylinders are compressed by the buffer rods mounted on the lower end of the moving plate. The buffer rods push the buffer plug downwards, and the guide holes on the buffer plugs use the buffer oil inside the buffer cylinders for cushioning. At the same time, the buffer plugs compress the second spring for further cushioning, effectively absorbing vibration and impact, avoiding muscle strain, reducing joint pressure, protecting hand health, and improving user comfort.

[0019] Furthermore, the cushioning mechanism can quickly and effectively absorb some of the impact force, reducing the vibration and impact transmitted to the hand. When passing over potholes or speed bumps, the vibration felt by the user's hand is significantly reduced, making the hand more comfortable and reducing the possibility of hand injury caused by long-term vibration. It can disperse and alleviate sudden impact force, and prevent hand muscles from being strained due to excessive instantaneous force. Attached Figure Description

[0020] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixed column of this utility model in half section.

[0022] Figure 3This is a schematic diagram of the three-dimensional structure of the adjusting column of this utility model;

[0023] Figure 4 This is a three-dimensional structural diagram of the straight toothed rack of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the control chip of this utility model;

[0025] Figure 6 This is a schematic diagram of the half-section three-dimensional structure of the movable plate of this utility model;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the buffer cylinder of this utility model.

[0027] In the diagram: 1. Base; 2. Fixed column; 3. Adjusting column; 4. Guide groove; 5. Guide block; 6. Moving plate; 7. Buffer rod; 8. Buffer column; 9. Spur rack; 10. Control motor; 11. Spur gear; 12. Connecting handle; 13. Touch switch; 14. Control chip; 15. Accelerometer; 16. Distance sensor; 17. First spring; 18. Buffer cylinder; 19. Buffer plug; 20. Second spring. Detailed Implementation

[0028] 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.

[0029] Example 1: Please refer to Figures 1-7This utility model provides the following technical solution: a smart telescopic suitcase handle, including a base 1 and a fixed post 2 disposed above the front end of the base 1; two fixed posts 2 are evenly distributed around the base 1 as the center of symmetry, and an adjusting post 3 is nested inside the upper end of the fixed post 2, and guide grooves 4 are provided on the front and rear sides inside the fixed post 2; a smart telescopic mechanism is provided on the fixed post 2, and a guide block 5 is fixedly installed on the lower front side of the adjusting post 3, and the guide block 5 cooperates with the guide groove 4; a movable plate 6 is slidably installed above the front end of the base 1, and fixed posts 2 are fixedly installed on both sides of the upper end of the movable plate 6; buffer rods 7 are rotatably installed on both sides inside the movable plate 6; a hand buffer mechanism is provided on the upper end of the base 1, and a buffer post 8 is slidably installed in the middle of the movable plate 6; and a smart telescopic mechanism is provided. The structure includes a spur rack 9 fixedly installed on the inner side of the lower end of the adjusting column 3, a control motor 10 fixedly installed on the inner side of the upper end of the fixed column 2, and a spur gear 11 fixedly installed on the output end of the control motor 10, with the spur gear 11 cooperating with the spur rack 9. A connecting handle 12 is fixedly installed on the upper end of the adjusting column 3, and a touch switch 13 is provided on the right side of the front end of the connecting handle 12, which is connected to the control motor 10. A control chip 14 is fixedly installed in the middle of the front end of the moving plate 6, and the control chip 14 is connected to the control motor 10. An acceleration sensor 15 is provided on the right end of the control chip 14, and a distance sensor 16 is provided on the left end of the control chip 14. The control chip 14, the acceleration sensor 15, and the distance sensor 16 are connected to each other.

[0030] When the length of the suitcase handle needs to be adjusted, the touch switch 13 on the handle 12 can be used to start the control motor 10. The control motor 10 drives the spur gear 11 to rotate. The spur gear 11 meshes with the spur rack 9, which in turn moves the spur rack 9. The spur rack 9 then moves the adjusting column 3. The adjusting column 3 moves by cooperating with the guide grooves 4 on both sides of the fixed column 2 through the guide blocks 5 on both sides. This ensures that the adjusting column 3 can only extend and retract smoothly in the predetermined direction, preventing the adjusting column 3 from rotating and ensuring the stability of the handle extension and retraction. When the acceleration sensor 15 detects that the suitcase is stationary, the control chip 14 determines that the user may need to retract the handle and generates a retraction command. For example, if the distance from the distance sensor 16 to the obstacle in front is less than a set threshold, and the acceleration sensor 15 indicates that the suitcase is in motion, the control chip 14 will quickly issue a retraction command to prevent collision.

[0031] Example 2: Based on Example 1, a hand cushioning mechanism is also disclosed, the specific structure of which is as follows:

[0032] The hand cushioning mechanism includes a first spring 17 mounted on the upper outer side of the cushioning column 8, and the lower end of the first spring 17 mounted on the upper end of the movable plate 6. Cushioning cylinders 18 are rotatably mounted on both sides of the upper end of the cushioning column 8, and cushioning oil is provided inside the cushioning cylinders 18. A cushioning rod 7 is installed through the upper end of the cushioning cylinder 18. A cushioning plug 19 is movably mounted inside the cushioning cylinder 18, and the upper end of the cushioning plug 19 is fixedly mounted on the lower end of the cushioning rod 7. A guide hole is opened on the cushioning plug 19. A second spring 20 is provided on the outer side of the cushioning rod 7, and the lower end of the second spring 20 is located on the upper end of the cushioning plug 19. The upper end of the second spring 20 is installed inside the upper end of the cushioning cylinder 18.

[0033] When the pull rod pulls the suitcase, the base 1 vibrates during the pull. The vibration is transmitted upwards and moves downwards through the moving plate 6, causing the buffer column 8 to slide downwards. The buffer column 8 compresses the first spring 17, which in turn cushions the compression of the buffer column 8. The buffer column 8 pushes the buffer cylinders 18 on both sides. The buffer cylinders 18 are compressed by the buffer rod 7 rotatably mounted at the lower end of the moving plate 6. The buffer rod 7 pushes the buffer plug 19 downwards. The guide hole on the buffer plug 19 uses the buffer oil inside the buffer cylinder 18 for cushioning. At the same time, the buffer plug 19 compresses the second spring 20 for further cushioning.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopic function intelligent trolley rod of a trolley case, comprising a base (1) and a fixed column (2) arranged above the front end of the base (1); characterized in that: An adjusting column (3) is nested inside the upper end of the fixed column (2), and a guide groove (4) is opened on the front and rear sides inside the fixed column (2). An intelligent telescopic mechanism is provided on the fixed column (2), and a guide block (5) is fixedly installed on the lower front side of the adjusting column (3), and the guide block (5) cooperates with the guide groove (4). A movable plate (6) is slidably installed above the front end of the base (1), and fixed columns (2) are fixedly installed on both sides of the upper end of the movable plate (6). Buffer rods (7) are rotatably installed on both sides inside the movable plate (6). A hand buffer mechanism is provided on the upper end of the base (1), and a buffer column (8) is slidably installed in the middle of the movable plate (6).

2. The smart telescopic function trolley rod of claim 1, wherein: The intelligent telescopic mechanism includes a spur rack (9) fixedly installed on the inner side of the lower end of the adjusting column (3), a control motor (10) fixedly installed on the inner side of the upper end of the fixed column (2), and a spur gear (11) fixedly installed at the output end of the control motor (10), and the spur gear (11) and the spur rack (9) cooperate with each other.

3. The smart telescopic function trolley rod of claim 2, wherein: The upper end of the adjusting column (3) is fixedly installed with a connecting handle (12), and a touch switch (13) is provided on the right side of the front end of the connecting handle (12), and the touch switch (13) is connected to the control motor (10).

4. The smart telescopic function trolley rod of claim 3, wherein: A control chip (14) is fixedly installed in the middle of the front end of the moving plate (6), and the control chip (14) is connected to the control motor (10). An acceleration sensor (15) is provided on the right end of the control chip (14), and a distance sensor (16) is provided on the left end of the control chip (14). The control chip (14), the acceleration sensor (15) and the distance sensor (16) are connected to each other.

5. The smart telescopic function trolley rod of claim 1, wherein: The hand cushioning mechanism includes a first spring (17) installed on the upper outer side of the cushioning column (8), and the lower end of the first spring (17) is installed on the upper end of the moving plate (6). Buffer cylinders (18) are rotatably installed on both sides of the upper end of the cushioning column (8), and buffer oil is provided inside the buffer cylinders (18).

6. The intelligent telescopic suitcase handle according to claim 5, characterized in that: The buffer cylinder (18) has a buffer rod (7) installed through the upper end. A buffer plug (19) is installed inside the buffer cylinder (18). The upper end of the buffer plug (19) is fixedly installed at the lower end of the buffer rod (7). A guide hole is opened on the buffer plug (19).

7. The smart telescopic function trolley rod of claim 6, wherein: A second spring (20) is provided on the outside of the buffer rod (7), and the lower end of the second spring (20) is provided on the upper end of the buffer plug (19), and the upper end of the second spring (20) is installed inside the upper end of the buffer cylinder (18).

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