Aluminum magnesium alloy anti-deformation luggage pull rod frame

By using aluminum-magnesium alloy materials and an intermediate support frame structure, the problem of deformation of the tie rod assembly during impact was solved, achieving stable use and extended lifespan of the tie rod assembly.

CN224386947UActive Publication Date: 2026-06-23DONGGUAN LIANXING LUGGAGE ACCESSORIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIANXING LUGGAGE ACCESSORIES CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

When the existing tie rod assembly is subjected to an impact, it is prone to deformation at the gap between the telescopic rod section and the upper transverse beam, causing the telescopic rod to malfunction.

Method used

The telescopic pole is made of aluminum-magnesium alloy and connected by an intermediate support frame and positioning bolts to increase support for the middle part of the telescopic pole. Combined with rubber elastic sleeves and guide sleeves, it improves the fixation and prevents deformation.

Benefits of technology

It effectively prevents the tie rod assembly from deforming when subjected to impact, ensuring normal use and extending its service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224386947U_ABST
    Figure CN224386947U_ABST
Patent Text Reader

Abstract

The utility model discloses an aluminum magnesium alloy anti -deformation luggage pull rod frame, including left and right two telescopic rod body two telescopic rod body's top fixed same horizontal holding rod, two telescopic rod body is aluminum magnesium alloy telescopic rod, its bottom all card -setting has the bottom sleeve body of plastic material, and the left and right ends of bottom horizontal beam are formed with sleeve body part, and the bottom sleeve body is card -setting in corresponding sleeve body part, and the outside wall of bottom sleeve body is close to the inboard wall of corresponding sleeve body part, and the one side wall of sleeve body part is formed with recessed hole, and the inner end surface middle part of recessed hole is formed with screw joint through -hole, and it realizes the support between the middle position of two telescopic rod body through the middle support frame, makes its to two telescopic rod body's middle part realizes the support, makes its manual and the collision, basically will not deform or deformation maintenance, guarantees its normal use, and its use effect is good, guarantees its service life.
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Description

Technical Field

[0001] This utility model relates to the field of luggage accessories technology, and more specifically to an aluminum-magnesium alloy anti-deformation luggage pull rod frame. Background Technology

[0002] A luggage handle frame is a handle assembly installed on a rolling suitcase for manually pushing the suitcase.

[0003] However, existing tie rod assemblies generally include two vertical telescopic rods, with the bottom of the two vertical telescopic rods fixed to the same horizontal beam, and the top of the lower part of the two telescopic rods fixed to the same upper horizontal beam. The position of the telescopic rods is fixed and supported through the horizontal beam and the upper horizontal beam.

[0004] However, when the bag is impacted, the impact point is in the middle of the two telescopic rods. Because the distance between the telescopic rods between the horizontal beam and the upper horizontal beam is relatively large, it is easy for them to deform after the impact, which makes the telescopic rods unable to extend or retract, affecting the use and making the bag unusable. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an aluminum-magnesium alloy anti-deformation luggage pull rod frame. It supports the middle position of the two telescopic rods through the middle support frame, so that it supports the middle of the two telescopic rods and will not deform when it is impacted, ensuring that it can be used normally and has good performance.

[0006] The solution of this utility model to the aforementioned technical problem is:

[0007] A type of aluminum-magnesium alloy anti-deformation luggage pull rod frame includes two telescopic rods, left and right. The top of the two telescopic rods is fixed with the same horizontal gripping rod. The two telescopic rods are aluminum-magnesium alloy telescopic rods, and plastic bottom sleeves are inserted at the bottom of each rod. Sleeves are formed at both ends of the bottom horizontal beam. The bottom sleeves are inserted into the corresponding sleeves. The outer side wall of the bottom sleeve is close to the inner side wall of the corresponding sleeve. A concave hole is formed on one side wall of the sleeve. A screw-in through hole is formed in the middle of the inner end face of the concave hole. The screw-in through hole communicates with and is aligned with the side through hole formed in the middle of the corresponding side plate of the bottom sleeve. A side concave hole is formed on the bottom outer side wall of the telescopic rod corresponding to the side through hole. The screw of the positioning bolt is screwed into the corresponding screw-in through hole. Its inner end extends out of the corresponding side through hole and is inserted into the corresponding side concave hole. The inner end face of the screw of the positioning bolt presses against the inner wall surface of the side concave hole.

[0008] The top of the bottom rods of the two telescopic rods are fixed with the same intermediate support beam, and an intermediate support frame is fixed between the intermediate support beam and the bottom transverse beam.

[0009] The rotating part of the positioning bolt is located in a concave hole, and its inner end face presses against the inner end face of the concave hole.

[0010] The intermediate support frame includes a central vertical metal plate, the top and bottom of which are fixed to the intermediate support beam and the bottom transverse beam.

[0011] A middle horizontal support plate extending to the left and right is fixed on the front wall of the middle vertical metal plate. The left and right sides of the middle horizontal support plate are formed with guide sleeves. The telescopic rod is inserted into the corresponding guide sleeve, and its outer side wall is pressed against the inner side wall of the guide sleeve.

[0012] The intermediate transverse support plate is made of aluminum-magnesium alloy. A rubber elastic sleeve is fitted on the inner wall of the guide sleeve body. The outer wall of the middle part of the bottom rod of the telescopic rod body is pressed against the inner wall of the rubber elastic sleeve.

[0013] The outstanding effect of this utility model is:

[0014] It uses a central support frame to support the middle section of the two telescopic poles, ensuring that they are not deformed when subjected to impact, thus guaranteeing normal use, good performance, and a long service life. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 This is a partial structural diagram of the intermediate support frame of this utility model;

[0018] Figure 4 yes Figure 3 A magnified view of a portion of the image. Detailed Implementation

[0019] For example, see below. Figures 1 to 4As shown, an aluminum-magnesium alloy anti-deformation luggage handle frame includes two telescopic rods 10, one on the left and one on the right. The tops of the two telescopic rods 10 are fixed with the same horizontal gripping rod 20. The two telescopic rods 10 are aluminum-magnesium alloy telescopic rods, and each has a plastic bottom sleeve 30 inserted at its bottom. Sleeve portions 41 are formed at both ends of the bottom horizontal beam 40. The bottom sleeve 30 is inserted into the corresponding sleeve portion 41, and the outer wall of the bottom sleeve 30 is tightly against the inner wall of the corresponding sleeve portion 41. A recessed hole 42 is formed on one side wall. A threaded through hole is formed in the middle of the inner end face of the recessed hole 42. The threaded through hole communicates with and is aligned with the side through hole formed in the middle of the corresponding side plate of the bottom sleeve 30. A side recessed hole 11 is formed on the bottom outer side wall of the telescopic rod 10 corresponding to the side through hole. The screw part of the positioning bolt 43 is screwed into the corresponding threaded through hole, and its inner end extends out of the corresponding side through hole and is inserted into the corresponding side recessed hole 11. The inner end face of the screw part of the positioning bolt 43 presses against the inner wall surface of the side recessed hole 11.

[0020] The top of the bottom rods of the two telescopic rods 10 are fixed with the same intermediate support beam 50, and an intermediate support frame 60 is fixed between the intermediate support beam 50 and the bottom transverse beam 40.

[0021] Furthermore, the rotating part of the positioning bolt 43 is located in the recessed hole 42, and its inner end face presses against the inner end face of the recessed hole 42.

[0022] It uses positioning bolts 43, bottom sleeve 30 and sleeve part 41 for connection and positioning, so that the bottom end of the bottom rod of the telescopic rod 10 is positioned and fixed, making it difficult to separate from the bottom transverse beam 40, and achieving a firm fixation.

[0023] Furthermore, the inner wall of the plastic bottom sleeve 30 is formed with multiple protruding locking portions 31. The top sidewall of the protruding locking portion 31 is an inclined wall surface, and the bottom outer sidewall of the telescopic rod 10 presses against the sidewall of the corresponding protruding locking portion 31. This increases the friction between the bottom outer sidewall of the bottom rod of the telescopic rod 10 and the inner sidewall of the bottom sleeve 30, making the clamping more secure.

[0024] Furthermore, the intermediate support frame 60 includes a central vertical metal plate 61, the top and bottom of which are fixed to the intermediate support beam 50 and the bottom transverse beam 40.

[0025] A middle horizontal support plate 62 extending to the left and right is fixed on the front wall of the middle vertical metal plate 61. The left and right sides of the middle horizontal support plate 62 are both formed with guide sleeve parts 63. The middle part of the bottom tube of the telescopic rod 10 is inserted into the corresponding guide sleeve part 63, and its outer side wall is pressed against the inner side wall of the guide sleeve part 63.

[0026] The intermediate transverse support plate 62 is made of aluminum-magnesium alloy. A rubber elastic sleeve 64 is fitted on the inner wall of the guide sleeve body 63. The outer wall of the middle part of the bottom rod of the telescopic rod 10 is pressed against the inner wall of the rubber elastic sleeve 64.

[0027] This structure enables positioning and fixation between the middle of the bottom tubes of the two telescopic rods 10, increasing the rigidity between the two telescopic rods 10 and making them less susceptible to impact deformation.

[0028] Furthermore, a radially extending edge 65 is formed on the top outer wall of the rubber elastic sleeve 64, and the bottom surface of the radially extending edge 65 presses against the top surface of the guide sleeve body 63.

[0029] Furthermore, the middle vertical metal plate 61 and the middle horizontal support plate 62 are fixed by riveting, or they can be fixed by other methods, such as welding.

[0030] Meanwhile, two connecting blocks are fixed to the front wall of the middle section of the vertical metal plate 61. The rear of the arc-shaped support block 70 is movably connected to the two connecting blocks via a hinge shaft. The bottom surface of the rear of the arc-shaped support block 70 is movably connected to a flip support plate 71 via a hinge shaft. A waist-shaped through hole 72 is formed in the middle of the bottom of the flip support plate 71. A positioning rod 73 is fixed at a corresponding position on the front wall of the middle section of the vertical metal plate 61. This rod can flip the arc-shaped support block 70 open and then... The rotating support plate 71 flips down, allowing the positioning rod 73 to be inserted into the waist-shaped through hole 72, thereby supporting the arc-shaped support block 70. In this embodiment, after being installed on the corresponding bag, a through groove can be opened in the middle of the back wall panel of the bag at the arc-shaped support block 70 and other components, so that the arc-shaped support block 70 and positioning rod 73 and other components can be inserted into the through groove. In this way, after the arc-shaped support block 70 is flipped open, cups and other objects can be inserted into the insertion hole of the arc-shaped support block 70 for placement, which is very convenient.

[0031] When not in use, the flip support plate 71 can be flipped up first, so that the positioning rod 73 can be moved out of the waist-shaped through hole 72. Then, the arc-shaped support block 70 and the flip support plate 71 can be flipped down together and brought close to the front wall of the central vertical metal plate 61, which is very convenient.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An anti-deformation aluminum-magnesium alloy luggage pull rod frame, comprising left and right two telescopic rod bodies (10), the top of the two telescopic rod bodies (10) is fixed with a same transverse holding rod (20), characterized in that: The two telescopic rods (10) are aluminum-magnesium alloy telescopic rods, each with a plastic bottom sleeve (30) inserted at its bottom. Sleeve portions (41) are formed at both ends of the bottom transverse beam (40). The bottom sleeve (30) is inserted into the corresponding sleeve portion (41). The outer wall of the bottom sleeve (30) is tightly attached to the inner wall of the corresponding sleeve portion (41). A recess (42) is formed on one side wall of the sleeve portion (41), and the inner end face of the recess (42) is formed in the middle. There is a threaded through hole, which is connected to and aligned with the side through hole formed in the middle of the corresponding side plate of the bottom sleeve (30). A side recessed hole (11) is formed on the bottom outer wall of the telescopic rod (10) corresponding to the side through hole. The screw part of the positioning bolt (43) is screwed into the corresponding threaded through hole, and its inner end extends out of the corresponding side through hole and is inserted into the corresponding side recessed hole (11). The inner end face of the screw part of the positioning bolt (43) presses against the inner wall surface of the side recessed hole (11). The top of the bottom rod of the two telescopic rods (10) is fixed with the same intermediate support beam (50), and an intermediate support frame (60) is fixed between the intermediate support beam (50) and the bottom transverse beam (40).

2. The aluminum-magnesium alloy anti-deformation luggage pull rod frame according to claim 1, characterized in that: The rotating part of the positioning bolt (43) is located in the concave hole (42), and its inner end face presses against the inner end face of the concave hole (42).

3. The aluminum-magnesium alloy anti-deformation luggage pull rod frame according to claim 1, characterized in that: The inner wall of the plastic bottom sleeve (30) is formed with a plurality of protruding locking parts (31). The top side wall of the protruding locking part (31) is an inclined wall, and the bottom outer side wall of the telescopic rod (10) presses against the side wall of the corresponding protruding locking part (31).

4. The aluminum-magnesium alloy anti-deformation luggage pull rod frame according to claim 1, characterized in that: The intermediate support frame (60) includes a central vertical metal plate (61), the top and bottom of which are fixed to the intermediate support beam (50) and the bottom transverse beam (40); A middle horizontal support plate (62) extending to the left and right is fixed on the front wall of the middle vertical metal plate (61). The left and right sides of the middle horizontal support plate (62) are formed with guide sleeves (63). The telescopic rod (10) is inserted into the corresponding guide sleeve (63), and its outer side wall is pressed against the inner side wall of the guide sleeve (63).

5. The aluminum-magnesium alloy anti-deformation luggage pull rod frame according to claim 4, characterized in that: The intermediate transverse support plate (62) is made of aluminum-magnesium alloy. A rubber elastic sleeve (64) is fitted on the inner wall of the guide sleeve body (63). The outer wall of the middle part of the bottom rod of the telescopic rod (10) is pressed against the inner wall of the rubber elastic sleeve (64).

6. The aluminum-magnesium alloy anti-deformation luggage pull rod frame according to claim 5, characterized in that: The top outer side wall of the rubber elastic sleeve (64) is formed with a radially extending edge (65), and the bottom surface of the radially extending edge (65) presses against the top surface of the guide sleeve body (63).