A luggage trolley locking structure

Abstract

The utility model relates to the field of luggage pull rod, disclose a luggage pull rod locking structure, including two outer rods, the inside slide coupling of outer rod has the inner rod, two the top of inner rod is fixedly connected with pull rod, the middle end slide connection of pull rod has the pressing plate, the middle end of pull rod top side is provided with the protection assembly, through protection assembly to carry out the protection to the pressing plate, the inside fixed connection of pull rod has two telescopic rods, the top fixed connection of telescopic rod is in the bottom side of pressing plate, the inside of inner rod is provided with positioning assembly, through positioning assembly to fix the position of inner rod. In the utility model, prevent the false touch and lead to the locking structure to be touched and lead to the height change of pull rod, and then improve the stability of pull rod, and make the locking structure more simple and convenient, not easy to cause the trouble because of complex structure, reduce the failure rate of locking structure.

Description

Technical Field

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

[0002] A luggage handle is a retractable component on suitcases and other bags used for carrying and lifting. It typically consists of nested metal or plastic rods with a handle at the top. The length can be adjusted by stretching or retracting to suit different usage scenarios. Its core function relies heavily on a locking mechanism—the key to maintaining the handle at a specific length. This mechanism firmly secures the rod during lifting, preventing accidental slippage and ensuring stability and safety during use. It is the core guarantee that the handle transitions from "retractable" to "controllable retraction," directly impacting the user experience and reliability of the handle.

[0003] A search revealed a luggage handle locking structure (publication number CN221729945U), comprising a handle assembly, an inner rod assembly, an outer rod assembly, a fixed connecting sleeve, and a pushing assembly. The inner rod assembly is fixedly installed at the bottom of the handle assembly and slidably installed within the outer rod assembly. The pushing assembly is fixedly installed at the bottom of the outer rod assembly, and a fixed connecting sleeve is fixedly installed on the outer side of the outer rod assembly. This invention features several equidistantly spaced limiting grooves fixedly opened on both sides of the rod body within the outer rod assembly, allowing for arbitrary height adjustment during vertical adjustment. This height adjustment offers greater flexibility and allows for convenient adjustment based on different heights.

[0004] Based on the aforementioned patent, several equidistant adjacent limiting grooves are fixedly opened on both sides of the rod body two inside the outer rod assembly of the device. This allows for arbitrary height adjustment during vertical adjustment, making the height adjustment more flexible and convenient for different heights. A pushing component is fixedly installed at the bottom of the outer rod assembly of the device, which works in conjunction with a locking button on one side of the handle assembly. Pressing the button locks the adjustment, preventing accidental lowering of the height during subsequent adjustment. However, the locking structure in this design is relatively complex, making it prone to malfunction when using the locking structure.

[0005] In response to this technical problem, this application proposes a luggage handle locking structure. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a luggage handle locking structure. This structure aims to prevent accidental activation that could alter the height of the handle, thereby improving its stability. Furthermore, it simplifies and streamlines the locking structure, reducing the likelihood of malfunctions due to structural complexity and lowering the failure rate of the locking mechanism.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A luggage handle locking structure includes two outer rods, with inner rods slidably connected inside the outer rods. A pull rod is fixedly connected to the top of each of the two inner rods. A pressing plate is slidably connected to the middle of each pull rod. A protective component is provided at the middle of the top side of each pull rod to protect the pressing plate. Two telescopic rods are fixedly connected inside the pull rod, with the top of each telescopic rod fixedly connected to the bottom side of the pressing plate. A positioning component is provided inside each inner rod to fix the position of the inner rod.

[0009] Furthermore, the protective assembly includes two fixed plates fixedly connected to the top side of the pull rod, and a protective cover is rotatably connected between the two fixed plates via a pivot.

[0010] Furthermore, two latching rods are fixedly connected to the bottom side of the protective cover, and an elastic ring is fixedly connected to the outer wall of the latching rods.

[0011] Furthermore, two snap-fit ​​grooves are provided on the top side of the pull rod, and the snap-fit ​​rod and the elastic ring are both engaged inside the snap-fit ​​grooves.

[0012] Furthermore, the positioning assembly includes an inclined plate connected to the bottom end of the inner rod via a torsion spring, and a wedge block is fixedly connected to one side of the inclined plate.

[0013] Furthermore, the outer rod has a groove inside, and multiple positioning blocks are fixedly connected inside the groove, with the wedge-shaped block abutting between two adjacent positioning blocks.

[0014] Furthermore, metal rings are fixedly connected to the left and right sides of the pressing plate and the top side of the inclined plate, and adjacent metal rings are connected by a pull rope.

[0015] Furthermore, a spring is fitted on the outer wall of the telescopic rod, with the top end of the spring connected to the bottom side of the pressing plate and the bottom end of the spring connected to the bottom side inside the pull rod.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by rotating the protective cover, the buckle rod and the elastic ring are engaged in the buckle groove, and the protective cover is placed on the pressing plate to prevent accidental contact that would cause the pressing plate to press down and thus change the height of the pull rod, thereby improving the stability of the pull rod.

[0018] 2. In this utility model, pressing the pressing plate causes it to move downwards, thereby pulling the inclined plate to rotate via the pull rope. This causes the inclined plate to disengage the wedge block from the upper and lower positioning blocks. Then, the pull rod can be pulled up and down to slide the inner rod, thereby adjusting the height of the pull rod. The locking structure in this application is relatively simple and convenient, and is less prone to failure due to structural complexity, thus reducing the failure rate of the locking structure. Attached Figure Description

[0019] Figure 1 This is a perspective view of a luggage handle locking structure proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the protective cover structure of a luggage pull rod locking structure proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the inner and outer rods of a luggage pull rod locking structure proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of a luggage handle locking structure proposed in this utility model.

[0023] Legend:

[0024] 1. Outer rod; 2. Inner rod; 3. Pull rod; 4. Protective cover; 5. Pressing plate; 6. Fixing plate; 7. Buckle rod; 8. Elastic ring; 9. Inclined plate; 10. Wedge block; 11. Positioning block; 12. Telescopic rod; 13. Spring; 14. Metal ring; 15. Pull rope. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a luggage pull rod locking structure, comprising two outer rods 1, with inner rods 2 slidably connected inside the outer rods 1. Pull rods 3 are fixedly connected to the top ends of the two inner rods 2, and a pressing plate 5 is slidably connected to the middle end of the pull rods 3. Two telescopic rods 12 are fixedly connected inside the pull rods 3, with the top ends of the telescopic rods 12 fixedly connected to the bottom side of the pressing plate 5. Two fixing plates 6 are fixedly connected to the top side of the pull rods 3, and a protective cover 4 is rotatably connected between the two fixing plates 6 via a pivot. Two latching rods 7 are fixedly connected to the bottom side of the protective cover 4, and an elastic ring 8 is fixedly connected to the outer wall of the latching rods 7. Two latching grooves are formed on the top side of the pull rods 3, and the latching rods 7 and elastic rings 8 are engaged inside the latching grooves. The locking mechanism is activated by rotating the protective cover. 4. This allows the latching rod 7 and the elastic ring 8 to engage in the latching groove, and the protective cover 4 to cover the pressing plate 5, preventing accidental contact that could cause the pressing plate 5 to press down and thus change the height of the pull rod 3, thereby improving the stability of the pull rod 3. The protective cover 4 can also be opened as needed to easily adjust the height of the pull rod 3. The latching rod 7 is made of a metal material with a certain degree of elasticity, allowing it to engage in the latching groove. The elastic ring 8 is made of an elastic metal, such as spring steel or beryllium bronze, which has a high elastic limit and fatigue strength. A protruding structure can be formed on the outer wall of the latching rod 7 through stamping, cutting, or other processes. When inserted, the protrusion deforms under pressure, generating a rebound force that presses against the inside of the latching groove, thereby improving the stability of the latching rod 7 engaged in the latching groove. A spring 13 is fitted on the outer wall of the telescopic rod 12. The top end of the spring 13 is connected to the bottom side of the pressing plate 5, and the bottom end of the spring 13 is connected to the bottom side inside the pull rod 3. The spring 13 is used to reset the pressing plate 5.

[0027] Reference Figure 1 , Figure 3 and Figure 4 The bottom end of the inner rod 2 is connected to an inclined plate 9 via a torsion spring. A wedge block 10 is fixedly connected to one side of the inclined plate 9. The outer rod 1 has a groove inside, and multiple positioning blocks 11 are fixedly connected inside the groove. The wedge block 10 abuts between two adjacent positioning blocks 11. Metal rings 14 are fixedly connected to the left and right sides of the pressing plate 5 and the top side of the inclined plate 9. Two adjacent metal rings 14 are connected by a pull rope 15. Pressing the pressing plate 5 causes it to move downward, thereby pulling the inclined plate 9 by the pull rope 15. The plate 9 rotates, causing the inclined plate 9 to disengage the wedge block 10 from the upper and lower positioning blocks 11. Then, the pull rod 3 can be pulled up and down to slide the inner rod 2, thereby adjusting the height of the pull rod 3. After adjusting the height, the pressing plate 5 is released, causing the pressing plate 5 to automatically rise under the action of the spring 13, thus resetting. At the same time, the torsion spring also causes the inclined plate 9 to automatically reset, causing the wedge block 10 to re-engage with the upper and lower positioning blocks 11, thereby fixing the pull rod 3 and completing the adjustment of the height of the pull rod 3.

[0028] Working principle: When using this device, pressing the pressing plate 5 causes it to move downwards, which in turn pulls the inclined plate 9 via the pull rope 15, causing the inclined plate 9 to move the wedge block 10 away from the upper and lower positioning blocks 11. Then, the pull rod 3 can be pulled up and down to move the inner rod 2 to slide, thereby adjusting the height of the pull rod 3. After adjusting the height, releasing the pressing plate 5 causes it to automatically rise under the action of the spring 13, thus resetting. At the same time, the torsion spring also causes the inclined plate 9 to automatically reset, causing the wedge block 10 to re-engage with the upper and lower positioning blocks 11, thereby fixing the pull rod 3 and completing the height adjustment of the pull rod 3. Afterwards, the protective cover 4 can be rotated to engage the latch rod 7 and the elastic ring 8 into the latch groove, so that the protective cover 4 covers the pressing plate 5 to prevent accidental contact that could cause the pressing plate 5 to press down and change the height of the pull rod 3. The protective cover 4 can also be opened as needed to facilitate the adjustment of the height of the pull rod 3 at any time.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A luggage handle locking structure, characterized in that: It includes two outer rods (1), and an inner rod (2) is slidably connected inside the outer rods (1). A pull rod (3) is fixedly connected to the top of the two inner rods (2). A pressing plate (5) is slidably connected to the middle end of the pull rod (3). A protective component is provided at the middle end of the top side of the pull rod (3) to protect the pressing plate (5). Two telescopic rods (12) are fixedly connected inside the pull rod (3). The top end of the telescopic rod (12) is fixedly connected to the bottom side of the pressing plate (5). A positioning component is provided inside the inner rod (2) to fix the position of the inner rod (2).

2. The luggage pull rod locking structure according to claim 1, characterized in that: The protective assembly includes two fixed plates (6) fixedly connected to the top side of the pull rod (3), and a protective cover (4) is rotatably connected between the two fixed plates (6) via a rotating shaft.

3. The luggage pull rod locking structure according to claim 2, characterized in that: The bottom side of the protective cover (4) is fixedly connected to two buckle rods (7), and the outer wall of the buckle rods (7) is fixedly connected to an elastic ring (8).

4. The luggage pull rod locking structure according to claim 3, characterized in that: The top side of the pull rod (3) has two buckle slots, and the buckle rod (7) and the elastic ring (8) are both engaged inside the buckle slots.

5. The luggage pull rod locking structure according to claim 1, characterized in that: The positioning assembly includes an inclined plate (9) connected to the bottom of the inner rod (2) by a torsion spring, and a wedge block (10) is fixedly connected to one side of the inclined plate (9).

6. The luggage pull rod locking structure according to claim 5, characterized in that: The outer rod (1) has a groove inside, and multiple positioning blocks (11) are fixedly connected inside the groove. The wedge block (10) abuts between two adjacent positioning blocks (11).

7. A luggage handle locking structure according to claim 5, characterized in that: Metal rings (14) are fixedly connected to the left and right sides of the pressing plate (5) and the top side of the inclined plate (9), and adjacent metal rings (14) are connected by a pull rope (15).

8. The luggage pull rod locking structure according to claim 1, characterized in that: The outer wall of the telescopic rod (12) is fitted with a spring (13), the top end of the spring (13) is connected to the bottom side of the pressing plate (5), and the bottom end of the spring (13) is connected to the bottom side inside the pull rod (3).

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