Composite material pull rod for lightweight luggage

Abstract

The utility model relates to the technical field of luggage accessories, in particular to a composite material pull rod for a lightweight luggage, which comprises a pull rod main body, the pull rod main body consists of an outer-layer rod, a middle-layer rod and an inner-layer rod, a head end part is mounted at the top end of the pull rod main body, and an adjustable button is mounted on the head end part. A plastic part is installed at the bottom end of the button, two identical extension rods are installed on each of the two sides of the bottom end of the plastic part, and supporting feet are fixedly installed at the bottom ends of the extension rods. The composite material pull rod is made of a composite material composed of carbon fibers and a resin matrix and has the characteristics of high strength, light weight, excellent corrosion resistance and high strength and modulus, and the length of the whole pull rod is adjusted by pressing a button to drag an extension rod. The use height of the pull rod on the luggage can be conveniently adjusted according to use requirements, the whole adjusting process is smooth, the adjustment is convenient and fast, and the luggage is suitable for popularization and use.

Description

Technical Field

[0001] This utility model relates to the field of luggage accessories technology, specifically to a lightweight composite material pull rod for luggage. Background Technology

[0002] Roller bags are commonly used products with a large market demand. They are usually used for dragging to save energy. There are many types of luggage handles, but their structures are largely the same. Currently, the handle structure of roller bags sold on the market has not changed much.

[0003] A luggage handle is an accessory used for pulling luggage, usually located on one side of the luggage. For ease of use, the handle is typically telescopic, with height adjustment achieved through the interaction of a steel ball and a positioning hole. However, current luggage handles suffer from inconvenience due to blockage during extension and retraction, and the strength and corrosion resistance of the luggage itself need improvement. Therefore, a lightweight composite material handle for luggage is needed to solve this problem. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight composite material pull rod for bags and luggage, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lightweight composite material pull rod for bags, comprising a pull rod body, the pull rod body being composed of three parts: an outer rod, a middle rod, and an inner rod. A head end is installed at the top of the pull rod body, and an adjustable button is installed on the head end. A plastic part is installed at the bottom of the button, and two identical extension rods are installed on both sides of the bottom of the plastic part. A support leg is fixedly installed at the bottom of the extension rod, and a first adjustment component is installed at the bottom of the support leg. The first adjustment component is located inside the inner rod, and a second adjustment component is installed at the bottom of the first adjustment component, and the second adjustment component is located at the bottom of the outer rod.

[0006] As a preferred embodiment of the present invention, a first top block is installed on the first adjusting component, a first adjusting rod is connected to the bottom end of the first top block, and a first moving block is provided at the bottom end of the first adjusting rod. The first adjusting rod is slidably connected to the first arc-shaped groove on the first moving block.

[0007] As a preferred technical solution of this utility model, a first cylindrical pin is installed on one side of the first moving block, and a second spring is provided on the other side of the first moving block, wherein the second spring is located in the first inner cavity, and the first cylindrical through inner rod is fastened to the first opening on the middle rod.

[0008] As a preferred embodiment of the present invention, a second top block is installed on the second adjustment group, a second adjustment rod is connected to the bottom end of the second top block, and a second moving block is provided at the bottom end of the second adjustment rod. The second adjustment rod is slidably connected to the second arc-shaped groove on the second moving block.

[0009] As a preferred technical solution of this utility model, a first cylindrical pin is installed on one side of the second moving block, and a square-headed pin is provided on the other side of the second moving block. The square-headed pin is located in the second inner cavity, and a third spring is installed between the second inner cavity and the square-headed pin. The square-headed pin passes through the first opening on the outer rod and is fastened.

[0010] As a preferred embodiment of this utility model, a first spring is installed between the bottom end and the head end of the plastic part and is symmetrically distributed, and a damper is installed at the bottom end of each of the first springs.

[0011] As a preferred embodiment of this invention, the main body of the pull rod is made of a composite material composed of carbon fiber and resin matrix.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) This utility model is a lightweight composite material pull rod for bags. The main body of the composite material pull rod of this device is made of composite material composed of carbon fiber and resin matrix. It has high strength, light weight and excellent corrosion resistance, as well as high strength and high modulus. The length of the entire pull rod body can be adjusted by pressing the button and dragging the extension rod, which makes it easy to adjust the height of the pull rod on the bag according to the use needs. The whole adjustment process is smooth and convenient, and thus suitable for widespread use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a structural schematic diagram of a lightweight composite material pull rod for bags according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a lightweight composite material pull rod for bags according to an embodiment of the present utility model;

[0017] Figure 3 According to this utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 According to this utility model Figure 2 Enlarged structural diagram at point B.

[0019] Figure label:

[0020] 1. Pull rod body; 2. Head end; 3. Button; 4. Plastic part; 5. First spring; 6. Damper; 7. Extension rod; 8. Inner rod; 9. Middle rod; 10. Support leg; 11. First opening; 12. First top block; 13. First adjusting rod; 14. First adjusting assembly; 15. First inner cavity; 16. Second spring; 17. First arc groove; 18. Outer rod; 19. First moving block; 20. First cylindrical pin; 21. Second top block; 22. Second adjusting rod; 23. Second arc groove; 24. Second adjusting assembly; 25. Second moving block; 26. Second cylindrical pin; 27. Third spring; 28. Square head pin; 29. ​​Second inner cavity; 30. Second opening. Detailed Implementation

[0021] The utility model will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0022] Example 1

[0023] refer to Figures 1 to 2 Example 1 describes a pull rod body 1, which is composed of three parts: an outer rod 18, a middle rod 9, and an inner rod 8. A head end 2 is installed at the top of the pull rod body 1, and an adjustable button 3 is installed on the head end 2. A plastic part 4 is installed at the bottom of the button 3. Two identical extension rods 7 are installed on both sides of the bottom of the plastic part 4. A support leg 10 is fixedly installed at the bottom of the extension rod 7. A first adjustment component 14 is installed at the bottom of the support leg 10. The first adjustment component 14 is located inside the inner rod 8. A second adjustment component 24 is installed at the bottom of the first adjustment component 14 and is located at the bottom of the outer rod 18. A first spring 5 is installed between the bottom of the plastic part 4 and the head end 2 and is symmetrically distributed. A damper 6 is installed at the bottom of each of the first springs 5. The pull rod body 1 is made of a composite material composed of carbon fiber and resin matrix.

[0024] In this embodiment, the tie rod body 1 is made of a composite material composed of carbon fiber and resin matrix, which has high strength, light weight and excellent corrosion resistance, as well as high strength and high modulus.

[0025] Example 2

[0026] refer to Figures 2 to 4Example 2 further illustrates Example 1, including a first adjusting assembly 14. A first top block 12 is mounted on the first adjusting assembly 14, and a first adjusting rod 13 is connected to the bottom end of the first top block 12. A first moving block 19 is provided at the bottom end of the first adjusting rod 13. The first adjusting rod 13 is slidably connected to a first arc-shaped groove 17 on the first moving block 19. A first cylindrical pin 20 is mounted on one side of the first moving block 19, and a second spring 16 is provided on the other side of the first moving block 19. The second spring 16 is located in the first inner cavity 15, and the first cylindrical pin 10 penetrates the inner layer rod 8 and the middle layer rod 9. The first opening 11 is fastened, the second adjustment group is equipped with a second top block 21, the bottom end of the second top block 21 is connected to a second adjustment rod 22, and the bottom end of the second adjustment rod 22 is provided with a second moving block 25. The second adjustment rod 22 is slidably connected to the second arc groove 23 on the second moving block 25. A first cylindrical pin 20 is installed on one side of the second moving block 25, and a square head pin 28 is provided on the other side of the second moving block 25. The square head pin 28 is located in the second inner cavity 29, and a third spring 27 is installed between the second inner cavity 29 and the square head pin 28. The square head pin 28 passes through the first opening 11 on the outer rod 18 and is fastened.

[0027] In this embodiment, the length of the pull rod body 1 can be adjusted by pressing the button 3 and dragging the extension rod 7, which makes it easy to adjust the height of the pull rod on the bag according to the needs of use, and makes the whole adjustment process smooth.

[0028] In practical applications, the composite material pull rod body 1 of this device is made of a composite material composed of carbon fiber and resin matrix. It has high strength, light weight, and excellent corrosion resistance, while also possessing high strength and high modulus. When button 3 is pressed, the entire pull rod will cause the internal plastic part 4 to fall. After releasing the button, it will return to its original position under the action of the spring and damper 6 below. Both sides of the plastic part 4 are connected to extension rods of the same length. The bottom of the extension rod is equipped with a support leg 10, and the bottom of the support leg 10 is equipped with a first adjustment component 14. When the plastic part 4 falls, the extension rod can be dragged to allow the first top block 12 on the first adjustment component 14 at the bottom to push the first adjustment rod 13 at the bottom, so that the movable part on the first adjustment rod 13... The first arc groove 17 slides on the first moving block 19. Since the first arc groove 17 is located on the first moving block 19, and the first cylindrical pin 20 and the second spring 16 are respectively installed on both sides of the first moving block 19, the first moving block 19 moves while pushing the adjusting rod. When the first cylindrical pin 20 disengages from the first opening 11 on the middle rod 9, the lifting and lowering are achieved. When the handle is released, the first cylindrical pin 20 locks into other first openings 11 on the middle rod 9 to achieve a locking. The bottom end of the middle rod 9 is provided with a second adjusting component 24. The second adjusting component 24 is similar in principle to the first adjusting component 14, except that the second adjusting component 24 has multiple square-headed pins 28. The square-headed pins 28 can lock the outermost tube, which can realize the retraction of the entire pull rod.

[0029] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight composite material pull rod for bags, characterized in that, The device includes a pull rod body (1), which is composed of three parts: an outer rod (18), a middle rod (9), and an inner rod (8). A head end (2) is installed at the top of the pull rod body (1), and an adjustable button (3) is installed on the head end (2). A plastic part (4) is installed at the bottom of the button (3). Two identical extension rods (7) are installed on both sides of the bottom of the plastic part (4). A support leg (10) is fixedly installed at the bottom of the extension rod (7). A first adjustment component (14) is installed at the bottom of the support leg (10). The first adjustment component (14) is located inside the inner rod (8). A second adjustment component (24) is installed at the bottom of the first adjustment component (14), and the second adjustment component (24) is located at the bottom of the outer rod (18).

2. The lightweight composite material pull rod for luggage according to claim 1, characterized in that, The first adjustment component (14) is equipped with a first top block (12), the bottom end of the first top block (12) is connected to a first adjustment rod (13), and the bottom end of the first adjustment rod (13) is provided with a first moving block (19). The first adjustment rod (13) is slidably connected to the first arc groove (17) on the first moving block (19).

3. The lightweight composite material pull rod for luggage according to claim 2, characterized in that, A first cylindrical pin (20) is installed on one side of the first movable block (19), and a second spring (16) is provided on the other side of the first movable block (19). The second spring (16) is located in the first inner cavity (15), and the first cylindrical through inner rod (8) is fastened to the first opening (11) on the middle rod (9).

4. The lightweight composite material pull rod for luggage according to claim 1, characterized in that, The second adjustment group is equipped with a second top block (21), the bottom end of the second top block (21) is connected to a second adjustment rod (22), and the bottom end of the second adjustment rod (22) is provided with a second moving block (25). The second adjustment rod (22) is slidably connected to the second arc groove (23) on the second moving block (25).

5. A lightweight composite material pull rod for luggage according to claim 4, characterized in that, A first cylindrical pin (20) is installed on one side of the second movable block (25), and a square-headed pin (28) is provided on the other side of the second movable block (25). The square-headed pin (28) is located in the second inner cavity (29), and a third spring (27) is installed between the second inner cavity (29) and the square-headed pin (28). The square-headed pin (28) passes through the first opening (11) on the outer rod (18) and is fastened.

6. The lightweight composite material pull rod for luggage according to claim 1, characterized in that, A first spring (5) is installed between the bottom end and the head end (2) of the plastic part (4) and is symmetrically distributed. A damper (6) is installed at the bottom end of each of the first springs (5).

7. A lightweight composite material pull rod for luggage according to claim 1, characterized in that, The main body of the tie rod (1) is made of a composite material composed of carbon fiber and resin matrix.

Images