Trunk bandage device

Abstract

The utility model discloses a trunk bandage device which comprises a mounting seat and a lock catch, a winding drum is rotatably mounted on the mounting seat, a bandage is wound on the winding drum, one end of the bandage is connected with the winding drum, the other end of the bandage is connected with the lock catch, the lock catch is used for pulling the bandage, and the winding drum is connected with the lock catch. The mounting seat is provided with a buckle position matched with the lock catch, the lock catch is provided with a first magnetic part, a second magnetic part matched with the first magnetic part is arranged in the buckle position, and the first magnetic part and the second magnetic part are matched to enable the lock catch to be in magnetic connection with the buckle position. The lock catch is magnetically connected with the buckle position of the mounting seat, so that the lock catch and the buckle position can be automatically adsorbed and fixed, and the use convenience and reliability are improved.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and more specifically to a trunk strap device. Background Technology

[0002] As an important part of a car, the trunk's primary function is to provide storage space. To ensure items remain securely in the trunk while the vehicle is in motion, preventing displacement, damage, or even injury to occupants due to bumps or sudden braking, people typically use straps to secure items. Early trunk straps were relatively simple, commonly using ordinary straps that were wrapped directly around items and fixed points in the trunk. However, these straps were inconvenient to use, requiring manual adjustment of tightness and prone to tangling and knotting when not in use, making storage difficult.

[0003] For example, the utility model patent with authorization announcement number CN204037458U discloses a roll-type strap for a car trunk, including a take-up roll, a flexible strap, and a stretch roll. One end of the flexible strap is connected to the take-up roll, and the other end of the flexible strap is connected to the stretch roll. A rotating shaft is provided vertically inside the take-up roll. A coil spring for resetting the rotating drum is connected to the lower end of the rotating shaft. A check button for locking the rotating shaft is connected to the upper end of the rotating shaft. The flexible strap is disposed on the rotating shaft. Both the take-up roll and the stretch roll have pins at their lower ends for connecting to a locking mechanism. The pins are cylindrical, and the lower side of the pin has an inwardly recessed groove. In this technical solution, when needed, pressing the check button opens the tension reel, and the reel and tension reel are secured to the trunk locking mechanism using pins. Releasing the check button allows the strap to be fixed in the appropriate position, securing items placed in the trunk. Therefore, using this strap device requires multiple steps, making it cumbersome and laborious. These steps include pressing the check button, opening the tension reel, securing the pins, and releasing the check button. Users need both hands to complete this process, and the connection between the pins and the locking mechanism requires precise alignment. Especially in situations where the trunk space is small or there is insufficient light, users may need to try multiple times to successfully insert the strap, increasing the difficulty of operation. In actual use, there are still many problems. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a trunk strap device, which uses a strap wound on a mounting base and a buckle to pull the strap. The buckle is magnetically connected to the buckle position on the mounting base, so that the buckle and the buckle position can automatically attract and fix each other, which improves the convenience and reliability of use.

[0005] This application provides a trunk strap device, including a mounting base and a buckle. A drum is rotatably mounted on the mounting base, and a strap is wound on the drum. One end of the strap is connected to the drum, and the other end of the strap is connected to the buckle. The buckle is used to pull the strap. The mounting base is provided with a buckle position that matches the buckle. The buckle is equipped with a first magnetic element, and a second magnetic element that matches the first magnetic element is installed in the buckle position. The first magnetic element and the second magnetic element cooperate to make the buckle magnetically connected to the buckle position.

[0006] In this technical solution, the strapping device is fixed in the trunk by a mounting base, which provides a stable base for the drum and buckle, ensuring the stability and reliability of the entire device. The drum is used to wind the strap and store it in the mounting base. As the drum rotates, the strap can be wound up or unwound, making it easy to load and unload and saving space. The other end of the strap is connected to the buckle, allowing the user to pull the strap. The strap is released by the force driving the drum to rotate, allowing the user to adjust the strap length as needed. A buckle is provided on the mounting base. This design utilizes a magnetic latch for positioning and placement. A first magnetic element is installed on the latch, and a second magnetic element is installed on the latch itself. This magnetic connection design allows the latch and latch to automatically attract and secure themselves, improving ease of use and reliability. Users simply need to bring the latch close to the latch, and the first and second magnetic elements will automatically attract each other, eliminating the need for complicated procedures and enhancing the user experience. The magnetic attraction ensures a more secure connection between the latch and the latch, preventing easy loosening and ensuring items are firmly secured in the trunk, thus improving operational convenience and connection stability.

[0007] As an improvement, a reset elastic element is installed on the mounting base. The reset elastic element is connected to the drum, and the drum drives the strap to rotate and reset via the reset elastic element. In this technical solution, the reset elastic element connected to the drum on the mounting base ensures that the drum can automatically rotate and reset after use, thereby retracting the strap and rewinding it onto the drum to prepare for the next stroke. The reset elastic element is preferably a coil spring, which can continuously provide a large restoring force in a confined space. When the user uses the strap to secure an item and releases the buckle, the restoring force of the coil spring will drive the drum to rotate, automatically winding the strap back onto the drum without manual winding. Moreover, the strap can bring the buckle back to the mounting base via the reset elastic element. Under the action of the first and second magnetic elements, the buckle automatically enters the buckle position, improving the convenience of use.

[0008] As an improvement, a first transmission gear is installed on the drum, and a second transmission gear is installed on the mounting base. The first and second transmission gears mesh to control the rotational speed of the drum. In this technical solution, the meshing of the first and second transmission gears forms a speed control mechanism, achieving precise control of the drum's rotational speed. This ensures a constant instantaneous transmission ratio, guarantees stable drum rotational speed without speed fluctuations, prevents the strapping from being quickly retracted or pulled out, and makes the strapping device safer and more reliable.

[0009] As an improvement, the first transmission gear is a damping gear; and / or, the second transmission gear is a damping gear. In this technical solution, the first transmission gear and / or the second transmission gear are set as damping gears, and at least one gear plays the role of vibration reduction and speed reduction, ensuring that the rotation speed of the drum can be precisely controlled. This not only improves the stability and safety of the drum and strapping operation, but also has the advantages of significant vibration reduction effect, efficient transmission, high reliability and wide applicability.

[0010] As an improvement, the first transmission gear is provided with a rotating shaft, and the mounting base is provided with a mounting hole adapted to the rotating shaft. The rotating shaft is rotatably installed in the mounting hole. In this technical solution, the first transmission gear is rotatably connected to the mounting hole of the mounting base through the rotating shaft, ensuring that the transmission gear can rotate smoothly. The installation structure is simple and reliable, effectively reducing vibration and noise, and improving the reliability of the strapping device.

[0011] As an improvement, an interference structure adapted to the rotating shaft is provided within the mounting hole. This interference structure abuts against the rotating shaft to create rotational damping for the first transmission gear. In this technical solution, the interference structure within the mounting hole achieves a tight connection between the rotating shaft and the mounting hole. The interference structure can be a protrusion, a groove, or other form of structure, used to increase the friction between the rotating shaft and the mounting hole. The interference structure creates rotational damping through abutment, thereby reducing the free rotation of the rotating shaft and increasing the resistance when the first transmission gear rotates, thus causing the first transmission gear to decelerate. The interference structure design is simple and reliable.

[0012] As an improvement, the first transmission gear is located at one end of the drum, and the other end of the drum is connected to the reset elastic element. In this technical solution, the first transmission gear and the reset elastic element are respectively set at both ends of the drum, making the entire device structure compact and occupying little space, which helps to reduce the volume of the entire strapping device. Furthermore, the connection between the first transmission gear, the drum, and the reset elastic element is more compact, further ensuring the stability and reliability of the transmission.

[0013] As an improvement, the first transmission gear and the drum are integrally formed. In this technical solution, the first transmission gear and the drum are manufactured as a whole, eliminating the need for subsequent assembly steps, reducing the number of parts and assembly errors, lowering production costs, and improving overall transmission accuracy and reliability. The integrally formed structure makes the entire device more compact, occupies less space, and improves space utilization.

[0014] As an improvement, the buckle is a barbed structure. In this technical solution, the buckle with a barbed structure increases the contact area between the buckle and the lock, further improving the firmness of the connection between the buckle and the lock, and preventing the lock from automatically disengaging from the buckle. The barbed structure has the advantages of simple structure and reliable connection.

[0015] As an improvement, the mounting base is provided with an opening for the strap to pass through, and the other end of the strap passes through the opening to connect to the buckle. The opening is located below the buckle. In this technical solution, the opening on the mounting base allows the strap to be extended and retracted, enabling the strap to pass through the mounting base and connect to the buckle, ensuring smooth fixing and release of the strap. The opening being located below the buckle optimizes the spatial layout, allowing the strap to move as close as possible to the buckle when resetting, improving ease of use and reliability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a trunk strap device according to this application.

[0017] Figure 2 This is a schematic diagram of the connection structure of the buckle, strap, and drum in this application.

[0018] Figure 3 This is a three-dimensional structural diagram of the mounting base in this application.

[0019] Figure 4 This is a cross-sectional schematic diagram of the strapping device in this application.

[0020] Figure 5 This is a three-dimensional structural diagram of the strapping device in this application from another angle.

[0021] The figure shows: 1. Mounting base; 11. Buckle; 12. Second magnetic component; 13. Second transmission gear; 14. Mounting hole; 141. Interference structure; 15. Opening; 2. Lock; 21. First magnetic component; 3. Drum; 31. First transmission gear; 32. Shaft; 4. Strap; 5. Reset elastic component. Detailed Implementation

[0022] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0023] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.

[0024] It should also be understood that the terms "comprising," "including," "having," "containing," and "including," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. The terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (the specific types and constructions may be the same or different), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0025] Furthermore, it should be noted that the terms "installation," "setting," "equipped with," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, elements, or components; they can refer to a direct installation on another component or the possible presence of another intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figures 1 to 5As shown, this application discloses a trunk strap device, including a mounting base 1 and a buckle 2. A drum 3 is rotatably mounted on the mounting base 1, and a strap 4 is wound on the drum 3. One end of the strap 4 is connected to the drum 3, and the other end of the strap 4 is connected to the buckle 2. The buckle 2 is used to pull the strap 4. The strap device is fixed in the trunk by the mounting base 1, and the mounting base 1 provides a stable base for the drum 3 and the buckle 2 to ensure the stability and reliability of the entire device. The drum 3 is used to wind the strap 4 and store the strap 4 in the mounting base 1. As the drum 3 rotates, the strap 4 can be wound up or unwound, so that the strap 4 can be easily wound up and unwound, saving space. The other end of the strap 4 is connected to the buckle 2, so that the user can pull the strap 4 through the buckle 2. The strap 4 is driven by force to rotate the drum 3 to be released, so that the user can adjust the length of the strap 4 as needed.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, the mounting base 1 is provided with a latching position 11 that is compatible with the latch 2. The latch 2 is equipped with a first magnetic component 21, and a second magnetic component 12 that is compatible with the first magnetic component 21 is installed in the latching position 11. The first magnetic component 21 and the second magnetic component 12 cooperate to make the latch 2 and the latching position 11 magnetically connected. The latching position 11 is provided on the mounting base 1 for positioning and placing the latch 2. The first magnetic component 21 is provided on the latch 2 and the second magnetic component 12 is provided on the latching position 11. This magnetic connection design allows the latch 2 and the latching position 11 to automatically attract and fix, improving the convenience and reliability of use. The user only needs to bring the latch 2 close to the latching position 11, and the first magnetic component 21 and the second magnetic component 12 will automatically attract, without complicated operation steps, improving the user experience. Through the attraction force of the magnetic components, the connection between the latching position 11 and the latch 2 is more secure and will not easily loosen. It can also ensure that the items are firmly fixed in the trunk, improving the convenience of operation and the stability of the connection.

[0028] More specifically, such as Figure 1 and Figure 2As shown, a reset elastic element 5 is installed on the mounting base 1. The reset elastic element 5 is connected to the drum 3. The drum 3 drives the strap 4 to rotate and reset through the reset elastic element 5. The reset elastic element 5 connected to the drum 3 on the mounting base 1 ensures that the drum 3 can automatically rotate and reset after use, thereby retracting the strap 4 and rewinding it onto the drum 3 to prepare for the next stroke. The reset elastic element 5 is preferably a coil spring. The coil spring can continuously provide a large restoring force in a narrow space. When the user uses the strap 4 to fix the item and releases the buckle 2, the restoring force of the coil spring will drive the drum 3 to rotate, automatically winding the strap 4 back onto the drum 3 without manual winding. Moreover, the strap 4 can bring the buckle 2 back to the mounting base 1 through the reset elastic element 5. Under the action of the first magnetic element 21 and the second magnetic element 12, the buckle 2 automatically enters the buckle position 11, improving the convenience of use.

[0029] More specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a first transmission gear 31 is installed on the drum 3, and a second transmission gear 13 is installed on the mounting base 1. The first transmission gear 31 and the second transmission gear 13 mesh to control the rotation speed of the drum 3. The meshing of the first transmission gear 31 and the second transmission gear 13 forms a speed control mechanism, which realizes precise control of the rotation speed of the drum 3. It can ensure that the instantaneous transmission ratio is constant, ensure that the rotation speed of the drum 3 is stable, and there will be no speed fluctuation. It prevents the strap 4 from being quickly retracted or pulled out, making the strap device safer and more reliable to use.

[0030] More specifically, such as Figure 2 , Figure 4 and Figure 5 As shown, the first transmission gear 31 is a damping gear; and / or, the second transmission gear 13 is a damping gear. Setting at least one of the first transmission gear 31 and the second transmission gear 13 as a damping gear, at least one gear plays the role of vibration reduction and deceleration, ensuring that the rotation speed of the drum 3 can be precisely controlled. This not only improves the stability and safety of the operation of the drum 3 and the strap 4, but also has the advantages of significant vibration reduction effect, high-efficiency transmission, high reliability and wide applicability.

[0031] More specifically, such as Figure 2 and Figure 5 As shown, the first transmission gear 31 is provided with a rotating shaft 32, and the mounting base 1 is provided with a mounting hole 14 that is adapted to the rotating shaft 32. The rotating shaft 32 is rotatably installed in the mounting hole 14. The first transmission gear 31 is rotatably connected to the mounting hole 14 of the mounting base 1 through the rotating shaft 32, ensuring that the transmission gear can rotate smoothly. The installation structure is simple and reliable, effectively reducing vibration and noise, and improving the reliability of the strapping device.

[0032] More specifically, such as Figure 2 and Figure 5 As shown, an interference structure 141 adapted to the rotating shaft 32 is provided in the mounting hole 14. The interference structure 141 abuts against the rotating shaft 32 to form rotational damping on the first transmission gear 31. The interference structure 141 in the mounting hole 14 realizes a tight connection between the rotating shaft 32 and the mounting hole 14. The interference structure 141 can be a protrusion, a groove or other form of structure, used to increase the friction between the rotating shaft 32 and the mounting hole 14. The interference structure 141 forms rotational damping by abutting, thereby reducing the free rotation of the rotating shaft 32 and increasing the resistance when the first transmission gear 31 rotates, so that the first transmission gear 31 decelerates its rotation. The interference structure 141 is simple and reliable in design.

[0033] More specifically, such as Figure 1 and Figure 2 As shown, the first transmission gear 31 is located at one end of the drum 3, and the other end of the drum 3 is connected to the reset elastic element 5. By setting the first transmission gear 31 and the reset elastic element 5 at the two ends of the drum 3 respectively, the entire device has a compact structure and occupies little space, which is conducive to reducing the volume of the entire strapping device. Furthermore, the connection between the first transmission gear 31, the drum 3 and the reset elastic element 5 is more compact, which further ensures the stability and reliability of the transmission.

[0034] More specifically, such as Figure 2 As shown, the first transmission gear 31 and the drum 3 are integrally formed. The first transmission gear 31 and the drum 3 are processed as a whole during the manufacturing process, eliminating the need for subsequent assembly steps, reducing the number of parts and assembly errors, lowering production costs, and improving the overall transmission accuracy and reliability. The integrally formed structure makes the whole device more compact, occupies less space, and improves space utilization.

[0035] More specifically, such as Figure 3 and Figure 4 As shown, the buckle 11 has a barbed structure. The barbed structure of the buckle 11 can increase the contact area between the buckle 11 and the lock 2, further improve the firmness of the connection between the buckle 11 and the lock 2, and prevent the lock 2 from automatically disengaging from the buckle 11. The barbed structure has the advantages of simple structure and reliable connection.

[0036] More specifically, such as Figure 3 and Figure 4As shown, the mounting base 1 is provided with an opening 15 for the strap 4 to pass through. The other end of the strap 4 passes through the opening 15 to connect to the buckle 2. The opening 15 is located below the buckle position 11. The opening 15 on the mounting base 1 allows the strap 4 to be extended and retracted, so that the strap 4 can pass through the mounting base 1 and connect to the buckle 2, ensuring that the strap 4 can be smoothly fixed and released. The opening 15 is located below the buckle position 11, which optimizes the spatial layout and makes the strap 4 as close as possible to the buckle position 11 when it drives the buckle 2 to reset, thus improving the convenience and reliability of use.

[0037] This application is not limited to the above-described preferred embodiments. Anyone can derive other products in various forms under the guidance of this application. However, regardless of any changes made to their shape or structure, any technical solution that is the same as or similar to that of this application falls within the protection scope of this application.

Claims

1. A trunk strap device, characterized in that, The device includes a mounting base (1) and a buckle (2). A roller (3) is rotatably mounted on the mounting base (1). A strap (4) is wound on the roller (3). One end of the strap (4) is connected to the roller (3), and the other end of the strap (4) is connected to the buckle (2). The buckle (2) is used to pull the strap (4). The mounting base (1) is provided with a buckle position (11) that matches the buckle (2). The buckle (2) is equipped with a first magnetic element (21). A second magnetic element (12) that matches the first magnetic element (21) is installed in the buckle position (11). The first magnetic element (21) and the second magnetic element (12) cooperate to make the buckle (2) and the buckle position (11) magnetically connected.

2. A trunk strap device according to claim 1, characterized in that, The mounting base (1) is equipped with a reset elastic element (5), which is connected to the drum (3). The drum (3) drives the strap (4) to rotate and reset through the reset elastic element (5).

3. A trunk strap device according to claim 1 or 2, characterized in that, A first transmission gear (31) is installed on the drum (3), and a second transmission gear (13) is installed on the mounting base (1). The first transmission gear (31) and the second transmission gear (13) mesh to control the rotation speed of the drum (3).

4. A trunk strap device according to claim 3, characterized in that, The first transmission gear (31) is a damping gear; and / or, the second transmission gear (13) is a damping gear.

5. A trunk strap device according to claim 4, characterized in that, The first transmission gear (31) is provided with a rotating shaft (32), and the mounting base (1) is provided with a mounting hole (14) adapted to the rotating shaft (32). The rotating shaft (32) is rotatably installed in the mounting hole (14).

6. A trunk strap device according to claim 5, characterized in that, An interference structure (141) adapted to the rotating shaft (32) is provided in the mounting hole (14). The interference structure (141) abuts against the rotating shaft (32) to form rotational damping on the first transmission gear (31).

7. A trunk strap device according to claim 3, characterized in that, The first transmission gear (31) is located at one end of the drum (3), and the other end of the drum (3) is connected to the reset elastic element (5).

8. A trunk strap device according to claim 7, characterized in that, The first transmission gear (31) and the drum (3) are integrally formed.

9. A trunk strap device according to claim 1, characterized in that, The buckle (11) is a barbed structure.

10. A trunk strap device according to claim 1 or 9, characterized in that, The mounting base (1) is provided with an opening (15) for the strap (4) to pass through. The other end of the strap (4) passes through the opening (15) to connect to the buckle (2). The opening (15) is located below the buckle (11).

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