A luggage trolley structure

Abstract

The utility model discloses a kind of travel suitcase pull rod structures, and the movable pipe is slidably arranged in fixed pipe, locking switch is arranged between movable pipe and fixed pipe, locking switch includes first slider, lifting frame and first clamping block, first slider is slidably arranged in movable pipe, lifting frame is slidably arranged in movable pipe, first slider is equipped with inclined sliding slot, lifting frame is equipped with guide rod slidably arranged in inclined sliding slot, first clamping block is fixedly arranged on first slider, movable pipe is equipped with through slot for first clamping block to protrude to movable pipe outside, fixed pipe is equipped with several first clamping slots matched with first clamping block along its length direction, first spring for positioning first slider is arranged in movable pipe, steel wire rope is arranged on lifting frame, trigger mechanism for pulling steel wire rope is arranged on handle. The pull rod of the application can still be smoothly opened locking switch after long-term use, so as to prolong the service life of pull rod.

Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a luggage handle structure. Background Technology

[0002] A suitcase, also known as a travel case or rolling case, is a box used to carry belongings when traveling. Suitcases are typically used to store clothing, personal care items, and souvenirs needed for a trip.

[0003] Commonly available suitcases typically include a body, wheels, and a pull tube. The main structure of a traditional suitcase pull tube includes a handle, a fixed tube, and a movable tube. The movable tube is mounted on the fixed tube and can move relative to it. The fixed tube is fixed to the handle. A locking switch is installed between the movable tube and the fixed tube. Pressing the button on the handle will unlock the locking switch, allowing the fixed tube and the movable tube to slide relative to each other.

[0004] Currently, most products on the market use a metal rod to link the button and the locking switch. When the button is pressed, the button can push the metal rod to move together, thereby pushing the locking switch to open. However, the metal rod is prone to bending during long-term use. A bent metal rod cannot open the locking switch smoothly, which will affect the normal use of the lever. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a suitcase pull rod structure.

[0006] This utility model proposes a suitcase pull rod structure, including a handle, a fixed tube, and a movable tube. The movable tube is fixedly connected to the handle and slides vertically through the fixed tube. A locking switch is provided between the movable tube and the fixed tube. The locking switch includes a first slider, a lifting frame, and a first locking block. The first slider is slidably disposed horizontally within the movable tube, and the lifting frame is slidably disposed vertically within the movable tube. The first slider has an inclined sliding groove, and the lifting frame has a guide rod slidably disposed within the inclined sliding groove. The first locking block is fixedly disposed on the first slider. The movable tube has a through groove for the first locking block to protrude outside the movable tube. The fixed tube has several first locking slots along its length that are adapted to the first locking block. A first spring is provided inside the movable tube to position the first slider. A steel wire rope is provided on the lifting frame, and a trigger mechanism for pulling the steel wire rope is provided on the handle.

[0007] Preferably, the triggering mechanism includes a button and a second slider. The second slider is slidably disposed inside the handle, and the button is slidably disposed inside the handle. The button protrudes outside the handle. A second spring is provided inside the handle to position the button. A first inclined surface is provided on the second slider. A second inclined surface that matches the first inclined surface is provided inside the button. One end of the wire rope is connected to the second slider, and the other end is connected to the lifting frame.

[0008] Preferably, the two ends of the wire rope are respectively provided with a second locking block and a third locking block, the lifting frame is provided with a second locking groove adapted to the second locking block, and the second slider is provided with a third locking groove adapted to the third locking block.

[0009] Preferably, the movable tube includes a tube body and a plug, the plug is inserted into the end of the tube body, the plug is provided with an installation groove, the installation groove is provided with an installation block, the installation block is connected to the plug by bolts, the installation block is provided with a sliding groove, and the first slider is slidably disposed in the sliding groove.

[0010] Preferably, the first spring is disposed in the slide groove, and the opposite side wall of the slide groove is provided with an arc-shaped groove for positioning the first spring.

[0011] Preferably, a rotating rod is rotatably disposed inside the handle, and the wire rope is suspended on the rotating rod.

[0012] The beneficial effects of this utility model are as follows:

[0013] The suitcase pull rod structure of this application moves a steel wire rope by pressing a button, which in turn moves a first slider to open and close the locking mechanism. By replacing the traditional metal rod with a steel wire rope and changing the structure of the locking switch to match the steel wire rope, the pull rod of this application can still smoothly open the locking switch after long-term use, thereby extending the service life of the pull rod. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0015] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0016] Figure 3 This is a perspective view of the mounting block, lifting frame, and first slider in an embodiment of this application.

[0017] Figure 4 for Figure 3 A 3D view after removing the mounting blocks.

[0018] Figure 5 for Figure 1A magnified view of a section at point B.

[0019] In the diagram: 1. Handle; 2. Fixed tube; 3. Movable tube; 31. Tube body; 32. Plug; 4. Locking switch; 41. First slider; 42. Lifting frame; 43. First locking block; 44. Inclined sliding groove; 45. Guide rod; 5. Through groove; 6. First locking groove; 7. First spring; 8. Steel wire rope; 9. Triggering mechanism; 91. Button; 92. Second slider; 93. Second spring; 94. First inclined surface; 95. Second inclined surface; 96. Second locking block; 97. Third locking block; 98. Second locking groove; 99. Third locking groove; 10. Mounting groove; 11. Mounting block; 12. Slide groove; 13. Arc groove; 14. Rotating rod. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0021] This application discloses a suitcase pull rod structure, including a handle, two fixed tubes and two movable tubes. The two movable tubes are respectively fixed on the left and right sides of the handle. The movable tubes slide vertically through the adjacent fixed tubes. The fixed tubes are installed on the suitcase. A locking switch is provided between the movable tubes and the fixed tubes. When the locking switch is open, the movable tubes and the fixed tubes can slide relative to each other. When the locking switch is closed, the movable tubes and the fixed tubes are fixed to each other.

[0022] The movable tube includes a tube body and a plug. The tube body is fixedly connected to the handle. The plug is tightly inserted into the end of the tube body. The plug has an installation groove located inside the tube body. An installation block is provided in the installation groove. The installation block is connected to the plug by bolts.

[0023] The locking switch includes a first slider, a lifting frame, and a first locking block. The first slider is laterally slidably disposed within a mounting block, which has a groove for sliding the first slider. The lifting frame is vertically slidably disposed within a movable tube, and is vertically connected to the mounting block. The mounting block has a vertical groove for sliding the lifting frame. The first locking block is fixedly disposed on the first slider, located outside the groove. The movable tube has a through groove for the first locking block to protrude outside the movable tube. The fixed tube has several first locking slots along its length that are adapted to the first locking blocks (in this embodiment, two first locking slots are provided, corresponding to the extended and retracted states of the pull rod, respectively). A first spring is provided within the groove to position the first slider. One end of the first spring is connected to the bottom wall of the slide groove, and the other end is connected to the first slider. The first spring provides elastic force to the first slider, making the first slider tend to slide out of the slide groove. A steel wire rope is provided on the lifting frame, and a trigger mechanism for pulling the steel wire rope is provided on the handle. Inclined sliding grooves are provided on both the left and right sides of the first slider. A guide rod is provided on the lifting frame and slidably set in the adjacent inclined sliding groove. When the guide rod moves upward with the lifting frame, the guide rod also slides in the inclined sliding groove and will drive the first slider to slide into the slide groove, so that the first locking block disengages from the first locking groove, the locking switch is opened, and the movable tube and the fixed tube can move relative to each other after the handle is pulled.

[0024] The triggering mechanism includes a button and two second sliders. Both second sliders are laterally slidable within the handle, which has grooves for their movement. The two second sliders are symmetrical. The button is vertically slidable within the handle, with its outer end protruding beyond the handle. A second spring, positioned between the two second sliders, positions the second sliders. A first inclined surface is located on each second slider, and a second inclined surface, compatible with the first inclined surface, is located within the button. One end of a steel cable is connected to a second slider, and the other end is connected to a lifting frame. When the button is pressed, it moves inward into the handle, and with the aid of the first and second inclined surfaces, pushes the second sliders laterally, causing them to move closer together. The second spring is compressed, and the moved second sliders then pull the steel cable.

[0025] Of course, the triggering mechanism can also pull the wire rope through a lever mechanism, or it can pull the wire rope by rotating a knob to wind the wire rope.

[0026] The wire rope has a second locking block and a third locking block fixed at both ends. The lifting frame has a second locking groove that matches the second locking block, and also a groove for the wire rope to engage. The second slider has a third locking groove that matches the third locking block, and also a groove for the wire rope to engage. This design allows for detachable connection between the wire rope and the second slider, and between the wire rope and the lifting frame, making installation convenient and quick.

[0027] The first spring is disposed within a slide groove, and an arc-shaped groove is provided on the opposite side wall of the slide groove to position the first spring. The arc-shaped groove allows the first spring to be installed more stably within the slide groove.

[0028] A rotating roller is installed inside the handle, and the wire rope is hung on the rotating roller. The design of the rotating roller can guide the wire rope, making it easier to pull, reducing friction, and also reducing noise.

[0029] The implementation principle of a suitcase pull rod structure in this application embodiment is as follows: When the user needs to retract or extend the pull rod, the user only needs to press the button, which triggers the mechanism to pull the steel wire rope. After the steel wire rope is pulled, it can drive the first slider to move, causing the first locking block on the first slider to disengage from the first locking groove, thereby allowing the fixed tube and the movable tube to move relative to each other. When the first locking block slides to be aligned with another first locking groove, the first locking block will automatically engage with the first locking groove under the action of the first spring, thereby locking the fixed tube and the movable tube.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A suitcase pull rod structure, comprising a handle, a fixed tube, and a movable tube, wherein the movable tube is fixedly connected to the handle, the movable tube slides vertically through the fixed tube, and a locking switch is provided between the movable tube and the fixed tube, characterized in that: The locking switch includes a first slider, a lifting frame, and a first locking block. The first slider is slidably disposed laterally inside the movable tube, and the lifting frame is slidably disposed vertically inside the movable tube. The first slider is provided with an inclined sliding groove, and the lifting frame is provided with a guide rod slidably disposed in the inclined sliding groove. The first locking block is fixedly disposed on the first slider. The movable tube is provided with a through groove for the first locking block to protrude outside the movable tube. The fixed tube is provided with a plurality of first locking slots adapted to the first locking block along its length. The movable tube is provided with a first spring for positioning the first slider. The lifting frame is provided with a steel wire rope, and the handle is provided with a trigger mechanism for pulling the steel wire rope.

2. The suitcase pull rod structure according to claim 1, characterized in that: The triggering mechanism includes a button and a second slider. The second slider is slidably disposed inside the handle, and the button is slidably disposed inside the handle. The button protrudes outside the handle. A second spring is provided inside the handle to position the button. A first inclined surface is provided on the second slider. A second inclined surface that matches the first inclined surface is provided inside the button. One end of the wire rope is connected to the second slider, and the other end is connected to the lifting frame.

3. The suitcase pull rod structure according to claim 2, characterized in that: The wire rope is provided with a second locking block and a third locking block at both ends, the lifting frame is provided with a second locking groove that matches the second locking block, and the second slider is provided with a third locking groove that matches the third locking block.

4. The suitcase pull rod structure according to claim 3, characterized in that: The movable tube includes a tube body and a plug. The plug is inserted into the end of the tube body. The plug has an installation groove. An installation block is provided in the installation groove. The installation block is connected to the plug by bolts. The installation block has a sliding groove. The first slider is slidably disposed in the sliding groove.

5. A suitcase pull rod structure according to claim 4, characterized in that: The first spring is disposed in the slide groove, and the opposite side wall of the slide groove is provided with an arc-shaped groove for positioning the first spring.

6. A suitcase pull rod structure according to claim 5, characterized in that: A rotating rod is rotatably installed inside the handle, and the steel wire rope is hung on the rotating rod.

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