Draw bar accessory and draw bar backpack

By designing hook holes on the trolley backpack to connect the shoulder straps, the problem of friction and motion interference between the shoulder straps and the ground during dragging is solved, achieving a suspended state for the shoulder straps and improving the safety and convenience of dragging.

CN223873446UActive Publication Date: 2026-02-06SHANGHAI LEEDEE TRAVELWARE PRODUCTS CO LTD
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Patent Information

Application Number
CN202520798914.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-02-06
Estimated Expiration
2035-04-25

AI Technical Summary

Technical Problem

Existing rolling backpacks, when dragged, suffer from friction and contamination from the straps contacting the ground, and pose a risk of motion interference, affecting the safety and convenience of dragging.

Method used

Design a pull rod accessory, including a support part and a hook part. The hook part is provided with a hook hole for connecting the shoulder strap. When the pull rod assembly is lifted, the hook part pulls the shoulder strap synchronously through the hook hole, so that it is suspended in the air, avoiding contact with the ground and getting caught in the roller drive gap.

Benefits of technology

It improves the safety and convenience of dragging the rolling backpack. The straps avoid friction contamination and movement interference when suspended in the air, enhancing stability and connection strength, and improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of bags and suitcases, and provides a draw bar accessory and a draw bar knapsack. The pull rod accessory is suitable for being installed on a pull rod assembly of the pull rod backpack and comprises a supporting part and a hanging part. The supporting part is fixedly mounted at the top of a pull rod of the pull rod assembly; the hanging part is arranged on one side of the supporting part and relatively located on the outer side of the pull rod assembly, and a hanging hole is formed in the hanging part and used for being connected with a strap; when the pull rod assembly is lifted upwards, the hanging part pulls the strap to be lifted synchronously through the hanging hole, so that the strap is in a suspended state. The trolley backpack comprises a trolley accessory, a box body, a base and straps. The hanging hole in the pull rod accessory is suitable for being connected with the strap, and when the pull rod assembly is lifted upwards, the hanging part pulls the strap to be lifted synchronously through the hanging hole, so that the strap is in a suspended state and away from the ground, the situation that the strap makes continuous contact with the ground and is drawn into a roller transmission gap is avoided, and safety and convenience are improved when the pull rod backpack is dragged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of luggage, further relates to a pull rod accessory and a pull rod backpack. BACKGROUND

[0002] The existing pull rod backpack integrates a shoulder strap, a pull rod assembly and a roller system, can be transported by the shoulder strap when the weight is lighter, and can be dragged by the pull rod assembly and the roller when the weight is heavier. However, when being dragged, the shoulder strap not in use is in a free hanging state, which causes the bottom surface of the shoulder strap to be in continuous contact with the ground and generate friction pollution. Moreover, the shoulder strap is also at risk of being interfered with movement, which can easily be rolled into the transmission gap of the roller, causing drag resistance and abnormal wear of components, seriously affecting the dragging of the pull rod backpack and significantly reducing the operation convenience and equipment reliability. SUMMARY

[0003] In view of the above technical problems, the utility model aims to provide a pull rod accessory and a pull rod backpack. The hanging hole on the pull rod accessory is suitable for connecting the shoulder strap. When the pull rod assembly is pulled upward, the hanging part pulls the shoulder strap through the hanging hole to synchronously lift it, so that the shoulder strap is in a suspended state and away from the ground, avoiding continuous contact with the ground and rolling into the transmission gap of the roller, and improving the safety and convenience of the pull rod backpack when being dragged.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a pull rod accessory suitable for being installed on a pull rod assembly. The pull rod assembly includes a plurality of pull rods. The pull rod accessory includes a supporting part and a hanging part.

[0005] The supporting part is suitable for being fixedly installed on the top of a pull rod of the pull rod assembly.

[0006] The hanging part is arranged on one side of the supporting part and opposite to the outside of the pull rod assembly. The hanging part is provided with a hanging hole for connecting the shoulder strap.

[0007] When the pull rod assembly is pulled upward, the hanging part pulls the shoulder strap through the hanging hole to synchronously lift it, so that the shoulder strap is in a suspended state.

[0008] In some embodiments, the hanging hole is vertically arranged through the hanging part. The hanging part includes a first hole body, a second hole body and a third hole body. The first hole body and the third hole body are axially symmetrically arranged on both sides of the supporting part. The second hole body connects one end of the first hole body and the third hole body away from the supporting part.

[0009] In some embodiments, the first hole body and the third hole body respectively extend obliquely in opposite directions, so that the first hole body, the second hole body and the third hole body form a trapezoidal configuration.

[0010] In some embodiments, the support part comprises a first rod and a second rod, the first rod is adapted to abut the inner side of the pull rod, and the second rod is arranged above the first rod, and the hanging part is connected to the second rod.

[0011] In some embodiments, the support part is axially provided with a movable hole, and another pull rod is adapted to pass through the movable hole, so that the other pull rod is movably mounted in the pull rod.

[0012] In some embodiments, the bottom of the first rod is further provided with a plurality of elastic grooves, so that the bottom of the first rod has a certain elasticity to adapt to the inner side wall of the pull rod.

[0013] In some embodiments, a plurality of clamping blocks are symmetrically arranged on the first rod, and the clamping blocks are adapted to be clamped and fixed in the clamping grooves of the pull rod.

[0014] According to another aspect of the present application, a pull rod backpack is further provided, comprising any one of the above preferred embodiments of the pull rod accessory, a box body, a base, and a shoulder strap; the box body is fixedly mounted on the base, the base is provided with a pull rod assembly and a roller, and the pull rod accessory is mounted on the pull rod assembly; the shoulder strap is arranged on one side of the box body, and the shoulder strap is provided with a connecting strap, and the end of the connecting strap is adapted to be fixedly connected to the hanging hole of the pull rod accessory.

[0015] In some embodiments, the pull rod assembly is a single pull rod, which comprises a first pull rod, a second pull rod, and a third pull rod, the first pull rod is fixedly mounted on the base, the second pull rod is slidably mounted on the first pull rod, the pull rod accessory is fixedly mounted on the top of the second pull rod, the third pull rod passes through the movable hole of the pull rod accessory and is slidably mounted on the second pull rod, and the top of the third pull rod is provided with a pull handle.

[0016] In some embodiments, one end of the connecting strap is fixedly connected to the bottom of the shoulder strap, and the other end is adapted to pass through the hanging hole and be fixedly connected by the adhesive tape on one side of the connecting strap.

[0017] Compared with the prior art, the pull rod accessory and the pull rod backpack provided by the present application have at least one of the following beneficial effects:

[0018] 1. The hanging hole on the pull rod accessory is adapted to connect the shoulder strap, when the pull rod assembly is pulled upward, the hanging part pulls the shoulder strap through the hanging hole to lift it synchronously, so that it is in a suspended state and away from the ground, avoiding continuous contact with the ground and being rolled into the transmission gap of the roller, thereby improving the safety and convenience of the pull rod backpack when it is dragged.

[0019] 2. The first hole body, the second hole body and the third hole body form a trapezoidal configuration, providing a larger connection area, so that the harness can still maintain stability when bearing a larger tension, and will not be damaged due to excessive local stress.

[0020] 3. The first rod body is abutted to the inner side of the pull rod, ensuring close fitting and providing a stable support base; the second rod body is located above the first rod body, and the hanging part is connected to the second rod body, forming a coherent structural layout, ensuring the stability of the whole and the firmness of the connection.

[0021] 4. The pull rod accessory is provided with a plurality of elastic grooves at the bottom of the first rod body, so that the bottom of the first rod body has a certain elasticity, which not only enhances the fitting degree of the first rod body and the inner side wall of the pull rod, but also provides better adaptability, ensuring stable connection in different use environments; the clamping block on the first rod body is precisely matched with the clamping groove on the pull rod, ensuring that the pull rod accessory can be stably clamped on the pull rod, which not only provides reliable fixing effect, but also allows users to quickly install and disassemble the pull rod accessory, greatly improving the convenience of use.

[0022] 5. The hanging hole configured by the pull rod accessory is suitable for connecting the harness and forming a dynamic linkage mechanism of the harness, when the pull rod assembly lifting operation is performed, the hanging part and the hanging hole cooperatively drive the harness to produce controllable vertical displacement, maintaining its hovering state off the ground, effectively realizing the elimination of the friction contact surface between the bottom surface of the harness and the ground, and blocking the pollutant attachment path; Moreover, a dynamic safety distance can be formed between the harness and the roller, avoiding the risk of transmission interference caused by the winding of the harness, thereby synchronously improving the motion fluency and equipment maintenance efficiency during dragging. BRIEF DESCRIPTION OF DRAWINGS

[0023] In the following, the above-mentioned characteristics, technical features, advantages and implementation modes of the present application will be further described in a clear and understandable manner in combination with the preferred embodiments and the accompanying drawings.

[0024] Figure 1 is the overall view of the pull rod backpack;

[0025] Figure 2 is the position view of the pull rod accessory;

[0026] Figure 3 is the structure view of the pull rod accessory;

[0027] Figure 4 is the side view of the pull rod accessory;

[0028] Figure 5 is the structure view of the pull rod accessory in the carrying state;

[0029] Figure 6 is the structure view of the pull rod accessory in the dragging state.

[0030] Brief Description of Drawings

[0031] Pull rod accessory 1, support part 11, movable hole 110, first rod body 111, elastic groove 1111, clamping block 1112, second rod body 112, hanging part 12, hanging hole 120, first hole body 121, second hole body 122, third hole body 123, box body 3, base 4, shoulder strap 5, connecting belt 51. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific implementation manners of the present application will be described below with reference to the drawings. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0033] In order to make the drawing simple, only the parts related to the present application are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one".

[0034] It should be further understood that the term "and / or" used in the specification and claims of the present application means one or more of the associated listed terms in any combination and all possible combinations, and includes these combinations.

[0035] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined according to the needs. The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principle of the present application, some improvements and refinements can also be made, which should be regarded as the protection scope of the present application.

[0037] Reference Figures 1 to 3 The utility model provides a kind of pull rod accessory 1, it is suitable for being installed on pull rod assembly 2, pull rod assembly 2 includes several pull rods, pull rod accessory 1 includes support part 11 and hangs on part 12;Support part 11 is suitable for fixedly installed in the top of a pull rod of pull rod assembly 2;Hangs on part 12 is located in the side of support part 11 and is opposite located outside pull rod assembly 2, hangs on hole 120 is equipped on hangs on part 12, for connecting shoulder strap 5;When pull rod assembly 2 is pulled up, hangs on part 12 is pulled up shoulder strap 5 synchronously by hangs on hole 120, so that it is in the state of suspension.

[0038] In the embodiment, the hanging hole 120 on the pull rod accessory 1 is suitable for connecting the shoulder strap 5. When the pull rod assembly 2 is pulled up, the hanging part 12 pulls up the shoulder strap 5 synchronously through the hanging hole 120, so that it is in the state of suspension and away from the ground, avoiding its continuous contact with the ground and winding into the roller transmission gap, improving the safety and convenience of the pull rod backpack when dragging.

[0039] Specifically, the pull rod assembly 2 includes a plurality of pull rods that can be telescopically moved to lengthen the overall length of the pull rod assembly 2. The pull rod accessory 1 is adapted to be mounted on top of a pull rod of the pull rod assembly 2, wherein the pull rod accessory 1 includes a support portion 11 and a hanging portion 12; the support portion 11 is fixedly mounted on top of a pull rod of the pull rod assembly 2 to provide stable support. The hanging portion 12 is arranged on one side of the support portion 11 and opposite to the outside of the pull rod assembly 2, and the hanging portion 12 is provided with a hanging hole 120 for connecting the shoulder strap 5. When the pull rod assembly 2 is pulled upward, the shoulder strap 5 is lifted synchronously by the hanging hole 120 of the hanging portion 12, so that it is in a suspended state and away from the ground, effectively avoiding the continuous contact of the shoulder strap 5 with the ground, preventing the shoulder strap 5 from being dirty or winding into the roller transmission gap, thereby significantly improving the safety and convenience of the pull rod backpack when being dragged. In addition, the hanging hole 120 is provided through the hanging portion 12 in the vertical direction, and the hanging portion 12 includes a first hole body 121, a second hole body 122, and a third hole body 123, the first hole body 121 and the third hole body 123 are axially symmetrically arranged on both sides of the support portion 11, and the second hole body 122 connects one end of the first hole body 121 and the third hole body 123 away from the support portion 11 and forms the hanging hole 120. The hanging hole 120 is to ensure the firm connection of the shoulder strap 5, while allowing the shoulder strap 5 to be adjusted when needed to adapt to different use scenarios. The support of the hanging portion 12 also enhances the stability and anti-interference ability of the shoulder strap 5, ensuring that the shoulder strap 5 will not loosen or shift during the dragging process. Of course, the hanging hole 120 can also be provided through the width direction of the hanging portion 12, which is not limited further herein. It is worth noting that the connection between the shoulder strap 5 and the hanging hole 120 can be that the back of the shoulder strap 5 is directly connected to the hanging hole 120, or a connecting strap 51 can be fixed on the bottom surface of the shoulder strap 5, and the connecting strap 51 is connected to the hanging hole 120. The existence of the connecting strap 51 makes it unnecessary to frequently adjust the length of the shoulder strap 5, and the operation is more convenient.

[0040] Further, referring to Figure 3 and Figure 4 , the first hole body 121 and the third hole body 123 respectively extend obliquely in opposite directions, so that the first hole body 121, the second hole body 122, and the third hole body 123 form a trapezoidal configuration.

[0041] In this embodiment, the first hole body 121, the second hole body 122, and the third hole body 123 form a trapezoidal configuration, providing a larger connection area, so that the shoulder strap 5 can still remain stable when bearing a larger pulling force, and will not be damaged due to excessive local stress.

[0042] Specifically, the hanging hole 120 of the hanging part 12 is provided through in the vertical direction, ensuring the stability and firmness of the connection of the harness 5. The hanging part 12 forms a trapezoidal structure as a whole, in which the first hole body 121 and the third hole body 123 are symmetrically distributed on both sides of the support part 11, and the second hole body 122 is connected to one end of the first hole body 121 and the third hole body 123 away from the support part 11. This not only enhances the overall strength of the hanging part 12, but also enables the harness 5 to be evenly distributed when connected, effectively preventing the harness 5 from shifting or loosening due to uneven force during towing. In addition, the first hole body 121 and the third hole body 123 respectively extend obliquely in opposite directions, together with the second hole body 122 to form a stable trapezoidal structure. The extension shape of the first hole body 121 and the third hole body 123 can be a straight line, an arc or an irregular shape, which is not limited further herein. The trapezoidal hanging part 12 also provides a larger connection and force area, so that the harness 5 can still remain stable when bearing a larger tension, and will not be damaged due to excessive local force. Moreover, the oblique extension design of the first hole body 121 and the third hole body 123 enables the harness 5 to naturally fit the shape of the hanging part 12 when connected, further enhancing the firmness and reliability of the connection, improving the practicality and reliability of the pull rod accessory 1, and improving the practicality and aesthetics of the pull rod accessory 1, significantly improving its stability and durability in actual use, providing users with a more convenient and safe use experience.

[0043] Further, the support part 11 includes a first rod body 111 and a second rod body 112, the first rod body 111 is adapted to abut against the inside of the pull rod, and the second rod body 112 is arranged above the first rod body 111, and the hanging part 12 is connected to the second rod body 112.

[0044] In this embodiment, the first rod body 111 is arranged to abut against the inside of the pull rod, ensuring close fitting and providing a stable support base; the second rod body 112 is located above the first rod body 111, and the hanging part 12 is connected to the second rod body 112, forming a coherent structure layout, ensuring the stability of the whole and the firmness of the connection.

[0045] Specifically, the support part 11 is composed of a first rod body 111 and a second rod body 112, forming a stable support structure. The first rod body 111 is adapted to abut the inner side of the pull rod, whose inner side wall matches the inner side wall of the pull rod, and its cross section can be a waist circle, an ellipse, etc. The application does not further limit its cross section here. The outer side wall of the second rod body 112 exceeds the outer side wall of the first rod body 111, so that the bottom of the second rod body 112 abuts the top of the pull rod, and then the hanging part 12 is fixedly installed on the top of the pull rod, avoiding the hanging part 12 from moving downward arbitrarily. The support part 11 is axially provided with a movable hole 110, and another pull rod is adapted to pass through the movable hole 110, so that the other pull rod is movably installed in the pull rod. At this time, the pull rod accessory 1 is arranged at the connecting joint of the adjacent pull rod. The movable hole 110 provided axially on the support part 11 allows another pull rod to pass through it, realizing the movable installation of the pull rod assembly 2, not only enhancing the flexibility of the pull rod assembly 2, but also providing adjustability, so that the pull rod can be stretched or adjusted as needed to adapt to different use scenarios and user needs. The movable hole 110 also simplifies the installation and disassembly process of the pull rod assembly 2, improving the convenience of use.

[0046] Further, the first rod body 111 is further provided with a plurality of elastic grooves 1111 at the bottom, so that the first rod body 111 has a certain elasticity to adapt to the inner side wall of the pull rod.

[0047] In this embodiment, the pull rod accessory 1 is provided with a plurality of elastic grooves 1111 at the bottom of the first rod body 111, so that the first rod body 111 has a certain elasticity, which not only enhances the fit of the first rod body 111 and the inner side wall of the pull rod, but also provides better adaptability, ensuring stable connection in different use environments.

[0048] Specifically, the arrangement of the elastic grooves 1111 allows the first rod body 111 to produce slight deformation when subjected to external force, thereby better fitting the contour of the inner side wall of the pull rod. When the pull rod assembly 2 is subjected to impact or vibration, it can effectively reduce friction and wear, prolonging the service life of the components. At the same time, the elastic grooves 1111 also enhance the durability of the pull rod accessory 1, enabling it to maintain stable performance under different temperature and humidity conditions. In addition, the elastic grooves 1111 also provide a certain shock absorption effect for the first rod body 111, which helps to reduce the impact of the vibration generated during dragging on the harness 5 and the pull rod assembly 2, further improving the comfort and stability of use. Through the elastic grooves 1111, the pull rod accessory 1 not only improves in function, but also reaches a higher standard in appearance and practicality.

[0049] It is worth noting that the notches of the elastic grooves 1111 are located at the bottom of the first rod body 111, and the depths of the elastic grooves 1111 can be the same or different.

[0050] Further, a plurality of clamping blocks 1112 are symmetrically arranged on the first rod body 111, and the clamping blocks 1112 are adapted to be clamped and fixed in the clamping grooves of the pull rod.

[0051] In this embodiment, the clamping blocks 1112 on the first rod body 111 are precisely matched with the clamping grooves on the pull rod, ensuring that the pull rod accessory 1 can be stably clamped on the pull rod. This not only provides reliable fixing effect, but also allows users to quickly install and disassemble the pull rod accessory 1, greatly improving the convenience of use.

[0052] Specifically, the clamping blocks 1112 are symmetrically distributed on both sides of the first rod body 111, ensuring the stability of the pull rod accessory 1 in all directions and preventing deviation or loosening during dragging. Preferably, the clamping blocks 1112 are located above the short elastic grooves 1111 symmetrically arranged along the long axis of the first rod body 111. This can enhance the overall strength of the pull rod assembly 2, enabling it to withstand greater pulling force and lateral force, ensuring reliability in various use scenarios. In addition, the close fit of the clamping blocks 1112 and the clamping grooves also has a certain damping effect, which can effectively reduce the vibration and noise generated during dragging, improving the comfort of use. This clamping and fixing method not only simplifies the installation process, but also improves the modularity of the pull rod assembly 2, allowing users to easily replace or upgrade the pull rod accessory 1 as needed to meet different use requirements.

[0053] It is worth noting that the material and shape of the clamping blocks 1112 are not limited by the present application, as long as they can maintain the fixing effect without being worn out over a long period of use, thereby prolonging the service life of the pull rod accessory 1.

[0054] Further, with reference to Figures 1 to 6 , the present application further provides a pull rod backpack, which comprises the pull rod accessory 1, the box body 3, the base 4 and the shoulder strap 5 of any of the above embodiments; the box body 3 is fixedly installed on the base 4, and the base 4 is provided with a pull rod assembly 2 and a roller, and the pull rod accessory 1 is installed on the pull rod assembly 2; the shoulder strap 5 is arranged on one side of the box body 3, and the shoulder strap 5 is provided with a connecting strap 51, and the end of the connecting strap 51 is adapted to be fixedly connected to the hanging hole 120 of the pull rod accessory 1.

[0055] In this embodiment, the hanging hole 120 of the pull rod accessory 1 is suitable for connecting the shoulder strap 5 and forming a dynamic linkage mechanism of the shoulder strap 5. When the pull rod assembly 2 is pulled, the hanging part 12 cooperates with the hanging hole 120 to drive the shoulder strap 5 to produce controllable vertical displacement, maintain its hovering state, effectively eliminate the friction contact surface between the bottom surface of the shoulder strap 5 and the ground, and block the attachment path of pollutants. Moreover, it can also form a dynamic safety distance between the shoulder strap 5 and the roller, avoiding the risk of transmission interference caused by the winding of the shoulder strap 5, thereby synchronously improving the motion fluency and equipment maintenance efficiency during dragging.

[0056] Specifically, the pull rod backpack provides flexible usage by providing a pull rod accessory 1, a box 3, a base 4, and a shoulder strap 5. The box 3 is stably fixed on the base 4, and the base 4 is equipped with a pull rod assembly 2 and a roller, ensuring the stability and convenience of the backpack during dragging. The pull rod accessory 1 is installed on the pull rod assembly 2, and through its unique structural design, it realizes the flexible connection and adjustment of the shoulder strap 5. The hanging hole 120 is provided on the hanging part 12 of the pull rod accessory 1, and the shoulder strap 5 is fixedly connected with the hanging hole 120 through the connecting belt 51, so that the shoulder strap 5 can be lifted synchronously when the pull rod assembly 2 is pulled upward, avoiding the contact of the shoulder strap 5 with the ground or the winding into the roller, thereby improving the safety and convenience of dragging. The structural design of the hanging hole 120 ensures the firmness and stability of the connection of the shoulder strap 5, while allowing the user to adjust the position of the shoulder strap 5 as needed.

[0057] In addition, the support part 11 of the pull rod accessory 1 is ensured to be closely fitted and stably connected with the pull rod through the elastic groove 1111 and the clamping block 1112, enhancing the overall durability and reliability. This pull rod backpack not only improves the user's experience, but also optimizes the stability and safety in various use environments. Whether it is carried or dragged, it provides a convenient and reliable solution for users.

[0058] It is worth noting that, with reference to Figure 5 and Figure 6 , the pull rod assembly 2 adopts a multi-layer structure, which is a single pull rod including a first pull rod 21, a second pull rod, and a third pull rod 23, providing an adjustable pull rod length to adapt to different heights and usage scenarios. Specifically, the pull rod assembly 2 includes a first pull rod 21, a second pull rod 22, and a third pull rod 23, the first pull rod 21 is fixedly installed on the base 4, the second pull rod is slidingly installed on the first pull rod 21, the pull rod accessory 1 is fixedly installed on the top of the second pull rod, the third pull rod 23 passes through the movable hole of the pull rod accessory 1 and is slidingly installed on the second pull rod, and the top of the third pull rod 23 is provided with a pull handle.

[0059] The first pull rod 21 serves as the base structure, which is fixedly installed on the base 4 to provide stable support and reliable connection basis. The second pull rod 22 is slidingly installed on the first pull rod 21, allowing users to adjust the overall length of the pull rod assembly 2 as needed to accommodate different heights and usage scenarios. The pull rod accessory 1 is fixedly installed on the top of the second pull rod 22 to ensure the stability of the hanging part 12 and the firmness of the connection. The third pull rod 23 passes through the movable hole of the pull rod accessory 1 and is slidingly installed on the second pull rod 22, further enhancing the flexibility and adjustability of the pull rod assembly 2. The top of the third pull rod 23 is provided with a pull handle, which is convenient for users to hold and operate, making it easier and more convenient to drag.

[0060] This multi-layer pull rod structure not only provides multiple adjustment options to meet the needs of different users, but also ensures that the straps 5 are lifted synchronously during dragging by the ingenious design of the pull rod accessory 1, avoiding contact with the ground or rolling into the wheels, thereby improving the safety and convenience of use. The entire pull rod assembly 2 optimizes the user experience, making the pull rod backpack maintain excellent performance in various usage environments. It is worth noting that the pull rod assembly 2 of the present application can also be a double pull rod structure, i.e., it has two pull rod assemblies 2, and the pull handle connects the top of the two pull rod assemblies 2.

[0061] Further, one end of the connecting band 51 is fixedly connected to the bottom of the strap 5, and the other end is adapted to pass through the hanging hole 120 and be fixedly connected by the adhesive tape on one side of the connecting band 51.

[0062] In this embodiment, the other end of the connecting band 51 passes through the hanging hole 120 and is fixedly connected by the adhesive tape, which not only allows for easy operation and quick adjustment of the position of the strap 5, but also ensures the firmness of the connection to prevent loosening or displacement during dragging.

[0063] Specifically, one end of the connecting band 51 is fixedly connected to the bottom of the strap 5 to ensure that it does not loosen or fall off when subjected to tension. The other end of the connecting band 51 passes through the hanging hole 120 and is fixedly connected by the adhesive tape, which not only allows for easy operation and quick adjustment of the position of the strap 5, but also ensures the firmness of the connection to prevent loosening or displacement during dragging. The adhesive tape on the connecting band 51 allows the strap 5 to be easily adjusted in length when needed to accommodate different usage scenarios and user needs. When the pull rod assembly 2 is pulled upward, the hanging part 12 pulls the strap 5 through the hanging hole 120 to lift it synchronously, avoiding contact with the ground or rolling into the wheels, thereby improving the safety and convenience of dragging. The cooperation between the connecting band 51 and the hanging hole 120 not only enhances the flexibility of use, but also enhances the overall aesthetics and practicality, providing users with a more convenient and reliable user experience.

[0064] It is worth noting that the adhesive tape is arranged on one side of the connecting band 51, which can be folded and adhered after the connecting band 51 passes through the hanging hole 120, or the adhesive tape can also be arranged in the hanging hole 120, and the adhesive tape on the connecting band 51 is connected with the adhesive tape in the hanging hole 120. Of course, the fixing connection mode of the end of the connecting band 51 and the hanging hole 120 of the pull rod accessory 1 is various, and the connecting band 51 includes but is not limited to the adhesive tape, and can also be connected through a hook, magnetic attraction and the like, which is within the protection scope of the present application. It can also be fixed through other separate accessories, for example, the connecting band 51 passes through the hanging hole 120, and then a binding accessory is used to bind it.

[0065] It should be explained that the above embodiments can be freely combined as needed. The above is only a preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A drawbar fitting adapted to be mounted on a drawbar assembly, the drawbar assembly comprising a plurality of drawbars, characterised in that, The support part is adapted to be fixedly installed on a top of a pull rod of the pull rod assembly. The support part is adapted to be fixedly installed on a top of a pull rod of the pull rod assembly. The support part is adapted to be fixedly installed on a top of a pull rod of the pull rod assembly. The support part is adapted to be fixedly installed on a top of a pull rod of the pull rod assembly. The support part is adapted to be fixedly installed on a top of a pull rod of the pull rod assembly.

2. The pull rod accessory according to claim 1, wherein the hanging part is provided with the hanging hole in a vertical direction, and the hanging part comprises a first hole body, a second hole body and a third hole body, the first hole body and the third hole body are symmetrically arranged on two sides of the support part, and the second hole body is connected to one end of the first hole body and the third hole body away from the support part.

3. The pull rod accessory according to claim 2, wherein the first hole body and the third hole body respectively extend in opposite directions, so that the first hole body, the second hole body and the third hole body form a trapezoidal configuration.

4. The pull rod accessory according to any one of claims 1-3, wherein the support part comprises a first rod body and a second rod body, the first rod body is adapted to be abutted and arranged on an inner side of the pull rod, the second rod body is arranged above the first rod body, and the hanging part is connected to the second rod body.

5. The pull rod accessory according to claim 4, wherein the support part is axially provided with a movable hole, and another pull rod is adapted to pass through the movable hole, so that the other pull rod is movably installed in the pull rod.

6. The pull rod accessory according to claim 4, wherein the bottom of the first rod body is further provided with a plurality of elastic grooves, so that the bottom of the first rod body has a certain elasticity to adapt to an inner side wall of the pull rod.

7. The pull rod accessory according to claim 4, wherein a plurality of clamping blocks are symmetrically arranged on the first rod body, and the clamping blocks are adapted to be clamped and fixed in clamping grooves of the pull rod.

8. A pull rod backpack, comprising the pull rod accessory, the box, the base and the shoulder strap according to any one of claims 1-7, the box is fixedly installed on the base, the base is provided with the pull rod assembly and a roller, the pull rod accessory is installed on the pull rod assembly, the shoulder strap is arranged on one side of the box, and the shoulder strap is provided with a connecting band, and an end of the connecting band is adapted to be fixedly connected to the hanging hole of the pull rod accessory.

9. The pull rod backpack according to claim 8, wherein the pull rod assembly is a single pull rod, which comprises a first pull rod, a second pull rod and a third pull rod, the first pull rod is fixedly installed on the base, the second pull rod is slidably installed on the first pull rod, the pull rod accessory is fixedly installed on a top of the second pull rod, the third pull rod passes through the movable hole of the pull rod accessory and is slidably installed on the second pull rod, and a handle is arranged on a top of the third pull rod.

10. The pull rod backpack according to claim 8, wherein one end of the connecting band is fixedly connected to a bottom of the shoulder strap, and the other end of the connecting band is adapted to pass through the hanging hole and is fixedly connected through an adhesive tape on one side of the connecting band. ​ ​ 8. A carry-on bag, comprising: ​ ​ ​ ​ ​