Luggage pull rod

Abstract

The utility model discloses a luggage pull rod which comprises a bottom plate, a middle plate, a telescopic sleeve rod and a handle, and further comprises a reinforcing unit fixedly connected to the bottom plate and the middle plate; wherein the reinforcing unit is arranged outside the telescopic sleeve rod in a sleeving mode, and the telescopic sleeve rod is composed of a telescopic outer rod and a telescopic inner rod; the reinforcing unit comprises a protection frame which is fixedly connected to the bottom plate, and a telescopic sleeve rod is arranged in the protection frame in a sleeved mode. The reinforcing column is fixedly mounted in the telescopic inner rod; and the multiple supporting assemblies are fixedly connected between the reinforcing columns and the telescopic inner rods correspondingly, in daily production and life, the telescopic sleeve rods are protected through the arrangement of the protection frames, the arrangement strength of the telescopic inner rods is improved through the arrangement of the supporting assemblies, and the overall pressure resistance and strength of the pull rod are improved.

Description

Technical Field

[0001] The utility model relates to a luggage pull rod. Background Art

[0002] A trolley case is a suitcase with a trolley and wheels, which is widely used because of its convenience. At the same time, trolley cases are also divided into single-tube trolleys and double-tube trolleys because of the trolley on the case. The tube of the trolley is also divided into square tubes and round tubes, so that it is convenient to drag while walking, thereby reducing the burden on the user. However, the trolley and the bag can only slide, and the trolley and the bag cannot rotate, so the angle of the trolley cannot be adjusted. When moving the bag, the most common method is to pull it obliquely. Part of the weight of the bag will be transferred to the arm through the trolley, which will increase the force on the arm, causing arm pain and reducing the user's comfort. If the items in the bag are too heavy, the force on the trolley will increase, making the trolley easy to bend and deform.

[0003] There are existing pull rods that can reduce the force, such as a luggage pull rod with patent number CN212995071U, which belongs to the technical field of luggage accessories, including a bottom plate, a middle plate, a handle and two telescopic sleeve rods, the middle plate and the bottom plate are fixedly connected to the luggage, one end of the two telescopic sleeve rods are rotatably connected to the bottom plate, the other end of the two telescopic sleeve rods are fixedly connected to the handle, the middle plate is provided with two slideways that penetrate the middle plate and are compatible with the telescopic sleeve rods, the telescopic sleeve rods are slidably connected to the slideways, the two slideways penetrate the middle plate on the side away from the luggage, and the middle plate is provided with a limit assembly that limits the rotation of the telescopic sleeve rod. The luggage pull rod of the utility model allows the pull rod and the luggage to rotate, and the user can change the angle of the telescopic sleeve rod according to their needs to avoid the luggage tilting and pulling the luggage to increase the force on the arm and cause arm pain.

[0004] This embodiment can improve the comfort of the user and reduce the force on the telescopic sleeve to avoid bending and deformation caused by excessive force on the telescopic sleeve. However, it has the following defects:

[0005] 1. The pull rod needs to bear the weight of the box. When it is overloaded or hit by external force, the pull rod is easy to deform and twist, which is inconvenient for later use;

[0006] 2. The pull rod needs to be pulled frequently during use, and the pull rod is prone to wear. Summary of the invention

[0007] The utility model aims to solve one of the technical problems existing in the prior art.

[0008] The present application provides a luggage pull rod, comprising a bottom plate, a middle plate, a telescopic sleeve rod and a handle, and also comprising:

[0009] A reinforcement unit, which is fixedly connected to the bottom plate and the middle plate;

[0010] The reinforcing unit is sleeved outside the telescopic sleeve rod, and the telescopic sleeve rod is composed of a telescopic outer rod and a telescopic inner rod.

[0011] The reinforcement unit includes:

[0012] A protective frame, which is fixedly connected to the bottom plate and has a telescopic sleeve rod sleeved inside;

[0013] A reinforcing column is fixedly installed inside the telescopic inner rod;

[0014] A plurality of supporting components are respectively fixedly connected between the reinforcing column and the telescopic inner rod.

[0015] The support components include:

[0016] A damping telescopic rod, which is fixedly connected between the outer wall of the reinforcement column and the inner wall of the telescopic inner rod;

[0017] The spring is sleeved outside the damping telescopic rod.

[0018] Also includes:

[0019] A slider, which is arranged on the outer wall of the telescopic inner rod and the telescopic outer rod;

[0020] A slide groove is provided on the inner wall of the protective frame and the telescopic outer rod;

[0021] The slider is slidably installed in the slide groove, and the number and distribution of the slider and the slide groove match.

[0022] Also includes:

[0023] The wear-resistant layer is arranged on the connection surface of the protection frame, the telescopic outer rod and the telescopic inner rod.

[0024] Also includes:

[0025] A plurality of anti-collision rings are evenly distributed on the outer wall of the telescopic inner rod;

[0026] Among them, several anti-collision rings are made of soft materials.

[0027] The beneficial effects of the utility model are as follows:

[0028] 1. The overall support strength and compression resistance of the pull rod are improved by setting up the protective frame, reinforcement column, damping telescopic rod and spring;

[0029] 2. The wear resistance of the pull rod is improved and the wear is reduced by setting the slider, the slide groove, the wear-resistant layer and the anti-collision ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a front view of a luggage pull rod in an embodiment of the present application;

[0031] Figure 2 Schematic diagram of the connection of the reinforcement unit in the embodiment of the present application.

[0032] Reference numerals

[0033] 1-bottom plate, 2-middle plate, 3-telescopic sleeve rod, 301-telescopic outer rod, 302-telescopic inner rod, 4-handle, 5-reinforcement unit, 6-protection frame, 7-reinforcement column, 8-support assembly, 9-damping telescopic rod, 10-spring, 11-slider, 12-slide groove, 13-wear-resistant layer, 14-anti-collision ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0035] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0036] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] like Figure 1 , Figure 2 As shown, an embodiment of the present application provides a luggage pull rod, including a bottom plate 1, a middle plate 2, a telescopic sleeve rod 3 and a handle 4, and also includes: a reinforcement unit 5, which is fixedly connected to the bottom plate 1 and the middle plate 2; wherein the reinforcement unit 5 is sleeved on the outside of the telescopic sleeve rod 3, and the telescopic sleeve rod 3 is composed of a telescopic outer rod 301 and a telescopic inner rod 302.

[0039] Furthermore, the reinforcing unit 5 includes a protective frame 6, which is fixedly connected to the base plate 1 and has a telescopic sleeve rod 3 inside; a reinforcing column 7, which is fixedly installed inside the telescopic inner rod 302; and a plurality of supporting components 8, which are respectively fixedly connected between the reinforcing column 7 and the telescopic inner rod 302.

[0040] Furthermore, the support assembly 8 includes a damping telescopic rod 9, which is fixedly connected between the outer wall of the reinforcing column 7 and the inner wall of the telescopic inner rod 302; and a spring 10, which is sleeved outside the damping telescopic rod 9.

[0041] In this embodiment of the present application, due to the adoption of the above-mentioned structure, when the strength of the pull rod needs to be felt, the telescopic sleeve rod 3 can be telescoped between the bottom plate 1 and the middle plate 2 by pulling the handle 4. The telescopic sleeve rod 3 is composed of a telescopic outer rod 301 and a telescopic inner rod 302. A protective frame 6 is sleeved on the outer end of the telescopic outer rod 301 to increase the overall thickness of the telescopic sleeve rod 3. When the telescopic sleeve rod 3 is not pulled out, the protective effect of the telescopic sleeve rod 3 is activated. When the telescopic sleeve rod 3 is pulled, the button on the handle 4 is pressed, so that the telescopic outer rod 301 and the telescopic inner rod 302 are protected together with the frame 6. The telescopic inner rod 302 can also be pulled out from the telescopic outer rod 301 by moving inward. The telescopic inner rod 302 is fixedly installed with a reinforcing column 7. A damping telescopic rod 9 is fixedly connected between the outer wall of the reinforcing column 7 and the inner wall of the telescopic inner rod 302, and a spring 10 is arranged on the outer sleeve of the damping telescopic rod 9. When an external object hits the telescopic inner rod 302, the spring 10 is squeezed. The elastic force of the spring 10 and the damping force of the damping telescopic rod 9 can support and offset the external squeezing force, thereby avoiding the telescopic inner rod 302 from being overloaded and deformed, and further improving the strength of the pull rod.

[0042] Embodiment 2:

[0043] like Figure 1 , Figure 2 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, it also includes: a slider 11, which is arranged on the outer wall of the telescopic inner rod 302 and the telescopic outer rod 301; a slide groove 12, which is arranged on the inner wall of the protective frame 6 and the telescopic outer rod 301; wherein the slider 11 is slidably installed in the slide groove 12, and the number and distribution of the slider 11 and the slide groove 12 match.

[0044] Furthermore, it also includes a wear-resistant layer 13, which is arranged on the connecting surface of the protection frame 6, the telescopic outer rod 301 and the telescopic inner rod 302.

[0045] Furthermore, it also includes a plurality of anti-collision rings 14, which are evenly distributed on the outer wall of the telescopic inner rod 302; wherein, the plurality of anti-collision rings 14 are made of soft material.

[0046] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the pull rod needs to be pulled when in use. When pulling, the protective frame 6 rubs against the telescopic outer rod 301, and the telescopic outer rod 301 rubs against the telescopic inner rod 302. A wear-resistant layer 13 is provided on the contact surface of the protective frame 6, the telescopic outer rod 301 and the telescopic inner rod 302 to improve the wear resistance of the protective frame 6, the telescopic outer rod 301 and the telescopic inner rod 302. The contact surface of the protective frame 6, the telescopic outer rod 301 and the telescopic inner rod 302 is pulled by the cooperation of the slider 11 and the slide groove 12. The slider 11 is located on the outer wall of the inner end, and the slide groove 12 is located on the inner wall of the outer end. Through the provision of the slider 11, the contact area between the protective frame 6, the telescopic outer rod 301 and the telescopic inner rod 302 is reduced, the friction force is reduced, and the wear resistance between the protective frame 6, the telescopic outer rod 301 and the telescopic inner rod 302 is effectively improved. In addition, anti-collision rings 14 are evenly distributed on the outer wall of the telescopic inner rod 302. The anti-collision rings 14 are made of soft materials (such as rubber, resin, etc.). The soft materials are elastic and can reduce the wear force when in contact with the outside world.

[0047] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0048] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A luggage pull rod, comprising a bottom plate (1), a middle plate (2), a telescopic sleeve rod (3) and a handle (4), characterized in that: Also includes: A reinforcing unit (5) fixedly connected to the bottom plate (1) and the middle plate (2); The reinforcing unit (5) is sleeved outside the telescopic sleeve rod (3), and the telescopic sleeve rod (3) is composed of a telescopic outer rod (301) and a telescopic inner rod (302); The reinforcing unit (5) comprises: A protective frame (6) which is fixedly connected to the base plate (1) and has a telescopic sleeve rod (3) sleeved therein; A reinforcing column (7) fixedly mounted inside the telescopic inner rod (302); A plurality of support assemblies (8) are respectively fixedly connected between the reinforcement column (7) and the telescopic inner rod (302).

2. A luggage pull rod according to claim 1, characterized in that: The support assembly (8) comprises: A damping telescopic rod (9) fixedly connected between the outer wall of the reinforcing column (7) and the inner wall of the telescopic inner rod (302); The spring (10) is sleeved outside the damping telescopic rod (9).

3. The luggage pull rod according to claim 1, characterized in that: Also includes: A sliding block (11) is arranged on the outer walls of the telescopic inner rod (302) and the telescopic outer rod (301); A slide groove (12) provided on the inner wall of the protective frame (6) and the telescopic outer rod (301); The slider (11) is slidably installed in the slide groove (12), and the number and distribution of the slider (11) and the slide groove (12) match.

4. The luggage pull rod according to claim 3, characterized in that: Also includes: A wear-resistant layer (13) is provided on the connection surface of the protective frame (6), the telescopic outer rod (301) and the telescopic inner rod (302).

5. The luggage pull rod according to claim 4, characterized in that: Also includes: A plurality of anti-collision rings (14) uniformly distributed on the outer wall of the telescopic inner rod (302); Wherein, a plurality of the anti-collision rings (14) are made of soft material.

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