Ergonomic pull rod and luggage case

Abstract

The utility model discloses an ergonomic pull rod and a luggage case. The ergonomic pull rod comprises a first supporting rod, a second supporting rod and a telescopic grip, one end of the telescopic grip is rotationally connected with the first supporting rod, and the other end of the telescopic grip is rotationally connected with the second supporting rod; the first supporting rod is of a liftable structure, and when the first supporting rod is higher than or lower than the second supporting rod, the telescopic grip is in an inclined state, so that the luggage case can be pushed through the telescopic grip. According to the ergonomic pull rod disclosed by the utility model, the inclinable telescopic grip and the liftable support rod structure are adopted, so that the height and the angle of the telescopic grip can be flexibly adjusted, and the telescopic grip is in an inclined state conforming to ergonomics, so that the ergonomic pull rod better adapts to the arm posture of a human body when the human body naturally pushes a luggage case; a user can conveniently and comfortably push the luggage case in a labor-saving manner, the fatigue feeling of arms and shoulders is effectively reduced, and the comfort of the user and the convenience of pushing the luggage case are improved.

Description

Technical Field

[0001] This utility model relates to the field of luggage accessories technology, and in particular to an ergonomic pull rod and luggage. Background Technology

[0002] As a common tool for carrying belongings when traveling, the design of the luggage handle is crucial to the user experience. Traditional luggage handles are relatively simple, typically consisting of two parallel rods and a fixed-length handle. This design has several drawbacks. Due to the significant differences in height among users, and the fact that the angle between the arm and the ground is not always horizontal when pushing a suitcase, the fixed structure of traditional handles fails to meet ergonomic requirements and provide a comfortable user experience. Users need to bend over or raise their arms unnaturally to push the suitcase, easily leading to arm fatigue, shoulder pain, and other discomfort, affecting travel comfort and convenience. Therefore, it is necessary to improve existing luggage handles to provide a more ergonomic design. Utility Model Content

[0003] The purpose of this utility model is to provide an ergonomic pull rod and suitcase to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution:

[0004] The first aspect of this utility model provides an ergonomic pull rod for a suitcase, including a first support rod, a second support rod, and a retractable handle; one end of the retractable handle is rotatably connected to the first support rod, and the other end is rotatably connected to the second support rod; the first support rod has a height-adjustable structure.

[0005] Furthermore, the retractable grip includes a first folding member, a second folding member, and a grip body; the first folding member and the second folding member are respectively rotatably connected to both ends of the grip body, and the total length of the first folding member, the grip body, and the second folding member when they are on the same straight line is greater than the distance between the first support rod and the second support rod; the other end of the first folding member is also rotatably connected to the first support rod, and the other end of the second folding member is also rotatably connected to the second support rod.

[0006] Furthermore, the first folding member is rotatably connected to the first support rod and the grip body respectively via hinges, and the second folding member is rotatably connected to the second support rod and the grip body respectively via hinges.

[0007] Furthermore, the retractable grip includes a first slider and a second slider; one end of the first slider is rotatably connected to the first support rod, and the other end of the first slider is slidably connected to the second slider, and the first slider slides relative to the second slider along the length direction of the second slider; the other end of the second slider is also rotatably connected to the second support rod.

[0008] Furthermore, the first support rod includes an inner rod and an outer rod, the outer rod is a hollow structure, one end of the inner rod is telescopically connected to the outer rod, and the other end of the inner rod is rotatably connected to one end of the telescopic handle.

[0009] Furthermore, the second support rod is a liftable structure.

[0010] A second aspect of this utility model also provides a suitcase, including a suitcase body and an ergonomic pull rod as described in any of the preceding claims, wherein casters are provided at the bottom of the suitcase body and the ergonomic pull rod is mounted on the suitcase body.

[0011] The beneficial effects of this utility model are as follows: The ergonomic pull rod of this utility model adopts a tiltable and retractable handle and a height-adjustable support rod structure. By adjusting the height difference between the first support rod and the second support rod, the height and angle of the retractable handle can be flexibly adjusted so that the retractable handle is in an ergonomic tilted state, which better adapts to the arm posture of the human body when pushing the suitcase, making it convenient for users to push the suitcase comfortably and effortlessly, effectively reducing arm and shoulder fatigue, and improving user comfort and the convenience of pushing the suitcase. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0013] Figure 1 This is a schematic diagram of the retractable grip in a horizontal state in Embodiment 1 of this utility model.

[0014] Figure 2 This is a schematic diagram of the retractable grip in an inclined state in Embodiment 1 of this utility model.

[0015] Figure 3 This is a schematic diagram of the retractable handle in a horizontal state in Embodiment 2 of this utility model.

[0016] Figure 4 This is a schematic diagram of the retractable grip in an inclined state in Embodiment 2 of this utility model.

[0017] Figure 5 This is a schematic diagram of the luggage in Embodiment 3 of this utility model.

[0018] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0021] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0022] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" 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, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), 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.

[0024] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] Example 1:

[0027] like Figure 1 and Figure 2 As shown in the illustration, an ergonomic pull rod according to an embodiment of this application is applied to a suitcase with casters, and can also be applied to other lightweight mobile devices in other embodiments. The ergonomic pull rod of this application includes a first support rod 1, a second support rod 2, and a retractable handle 3; wherein the first support rod 1 and the second support rod 2 are connected and fixed to the suitcase to mount the pull rod onto the suitcase. One end of the retractable handle 3 is rotatably connected to the first support rod 1, and the other end is rotatably connected to the second support rod 2, forming a connection structure that can flexibly adjust the angle and length. Simultaneously, the first support rod 1 is a height-adjustable structure; by adjusting the height of the first support rod 1, the height difference between the first support rod 1 and the second support rod 2 is changed, thereby causing the two ends of the retractable handle 3 to rotate relative to each other, changing the height and tilt angle of the two ends of the retractable handle 3.

[0028] When the lever needs to be pulled forward, the first support rod 1 is adjusted to the same height as the second support rod 2, so that the telescopic handle 3 is in a horizontal position, and the user can easily pull the lever.

[0029] When the lever needs to be pushed forward, the height of the first support 1 is adjusted to be higher or lower than the second support 2, so that the telescopic handle 3 is in an inclined state. When the user holds the telescopic handle 3 and pushes forward, the wrist is in a natural, extended position and the forearm is in a horizontal direction, so that the direction of the pushing force is consistent with the direction of travel. This allows the lever and suitcase to be pushed forward easily and effortlessly, improving pushing efficiency and eliminating abnormal torsional stress on the wrist joint, effectively reducing fatigue and lowering the risk of sports injuries caused by long-term use.

[0030] The ergonomic pull rod of this application adopts a tiltable and retractable handle and a height-adjustable support rod structure. By adjusting the height difference between the first and second support rods, the height and angle of the retractable handle can be flexibly adjusted so that the retractable handle is in an ergonomic tilt state, which better adapts to the arm posture of the human body when pushing the suitcase. This makes it convenient for users to push the suitcase comfortably and effortlessly, effectively reducing arm and shoulder fatigue and improving user comfort and the convenience of pushing the suitcase.

[0031] In the specific implementation of this application, the retractable grip 3 adopts a folding structure, and its specific structure and connection method are as follows:

[0032] See Figure 2 The retractable grip 3 includes a first folding member 31, a second folding member 32, and a grip body 33. The first folding member 31 and the second folding member 32 are rotatably connected to both ends of the grip body 33, forming a foldable structure. The total length of the first folding member 31, the grip body 33, and the second folding member 32 when they are on the same straight line is greater than the distance between the first support rod 1 and the second support rod 2. This size design allows the retractable grip 3 to have sufficient room for movement during folding and unfolding, without being restricted by insufficient length, ensuring the flexibility and stability of extension and retraction. The other end of the first folding member 31 is also rotatably connected to the first support rod 1, and the other end of the second folding member 32 is also rotatably connected to the second support rod 2, so that the retractable grip 3 can fold according to the height changes of the first support rod 1 and the second support rod 2, realizing angle adjustment and maintaining an angle adapted to the user's arm and wrist.

[0033] As an example, the first folding member 31 is rotatably connected to the first support rod 1 and the grip body 33 via hinges, and the second folding member 32 is rotatably connected to the second support rod 2 and the grip body 33 via hinges. The hinge connection has the advantages of simple structure, flexible rotation, and high reliability, which can ensure smooth rotation between the retractable grip 3 and the first support rod 1 and the second support rod 2, and facilitate the folding of the retractable grip 3 to adjust the tilt angle.

[0034] In the specific implementation process of this application, see [link / reference]. Figure 2 The first support rod 1 includes an inner rod 11 and an outer rod 12. The outer rod 12 is a hollow structure. One end of the inner rod 11 is telescopically connected to the outer rod 12, and the other end of the inner rod 11 is rotatably connected to one end of a telescopic handle 3. By adjusting the telescopic length of the inner rod 11 within the outer rod 12, the height of the first support rod 1 can be adjusted. This height-adjustable structure can employ common adjustment methods such as snap-on, button, or screw types, allowing users to easily adjust the height of the first support rod 1 according to their needs.

[0035] Meanwhile, the second support rod 2 is also height-adjustable. Its structure can be the same as the first support rod 1, or it can adopt other suitable height-adjustable designs. The height-adjustable function of the second support rod 2 further increases the adjustability of the pull rod. Users can adjust the height of the first support rod 1 and the second support rod 2 simultaneously according to their own height, so that the telescopic handle 3 reaches the most comfortable height position, achieving an ergonomic effect and making it more comfortable and convenient to push the suitcase.

[0036] Example 2:

[0037] like Figure 3 and Figure 4 As shown, the difference between this embodiment and Embodiment 1 lies in that the retractable grip 3 adopts a sliding connection telescopic structure, the specific structure of which is as follows: The retractable grip 3 includes a first sliding member 34 and a second sliding member 35; one end of the first sliding member 34 is rotatably connected to the first support rod 1, and the other end of the first sliding member 34 is slidably connected to the second sliding member 35, with the first sliding member 34 sliding relative to the second sliding member 35 along the length direction of the second sliding member 35; the other end of the second sliding member 35 is also rotatably connected to the second support rod 2. The length adjustment of the retractable grip 3 can also be achieved through the sliding connection to accommodate the height difference between the first support rod 1 and the second support rod 2, allowing the grip to form a suitable tilt angle. Exemplarily, the first sliding member 34 and the second sliding member 35 can employ inner and outer sleeves, guide rails and grooves, rollers and grooves, etc., to achieve the sliding connection and telescopic effect.

[0038] Example 3:

[0039] Based on the same inventive concept as the aforementioned ergonomic pull rod, this application provides a suitcase, see [link to relevant documentation]. Figure 5 It includes a housing 4 and an ergonomic pull rod as described above. The bottom of the housing 4 is equipped with casters, and the ergonomic pull rod is mounted on the housing 4.

[0040] It should also be noted that, without conflict, the embodiments of this utility model and the features therein can be combined with each other to obtain new embodiments.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. The scope of protection of the present utility model should be determined by the scope of the claims. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An ergonomic pull rod, characterized in that, It includes a first support rod (1), a second support rod (2), and a retractable grip (3); one end of the retractable grip (3) is rotatably connected to the first support rod (1), and the other end is rotatably connected to the second support rod (2); the first support rod (1) is a height-adjustable structure; the retractable grip (3) includes a first folding member (31), a second folding member (32), and a grip body (33); the first folding member (31) and the second folding member (32) are respectively rotatably connected to the two ends of the grip body (33), and the total length of the first folding member (31), the second folding member (32), and the grip body (33) when they are on the same straight line is greater than the distance between the first support rod (1) and the second support rod (2); the other end of the first folding member (31) is also rotatably connected to the first support rod (1), and the other end of the second folding member (32) is also rotatably connected to the second support rod (2).

2. The ergonomic pull rod according to claim 1, characterized in that, The first folding member (31) is rotatably connected to the first support rod (1) and the grip body (33) respectively via hinges, and the second folding member (32) is rotatably connected to the second support rod (2) and the grip body (33) respectively via hinges.

3. The ergonomic pull rod according to claim 1, characterized in that, The retractable grip (3) includes a first sliding member (34) and a second sliding member (35); one end of the first sliding member (34) is rotatably connected to the first support rod (1), and the other end is slidably connected to the second sliding member (35). The first sliding member (34) slides relative to the second sliding member (35) along the length direction of the second sliding member (35); the other end of the second sliding member (35) is also rotatably connected to the second support rod (2).

4. The ergonomic pull rod according to claim 1, characterized in that, The first support rod (1) includes an inner rod (11) and an outer rod (12). The outer rod (12) is a hollow structure. One end of the inner rod (11) is telescopically connected to the outer rod (12), and the other end of the inner rod (11) is rotatably connected to one end of the telescopic handle (3).

5. The ergonomic pull rod according to claim 1, characterized in that, The second support rod (2) is a liftable structure.

6. A suitcase, characterized in that, Includes a housing (4) and an ergonomic pull rod as described in any one of claims 1 to 5, wherein the bottom of the housing (4) is provided with casters and the ergonomic pull rod is mounted on the housing (4).

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