Luggage pull rod lower seat mounting structure and lower seat assembly

The design of the L-shaped base plate and external buckle components enables convenient installation and secure fixation of the lower part of the luggage handle, solving the problems of low installation efficiency and unstable fixation in the existing technology, and improving the service life of the handle.

CN224461241UActive Publication Date: 2026-07-07WENZHOU PENGFAN LUGGAGE ACCESSORIES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU PENGFAN LUGGAGE ACCESSORIES CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing mounting system for trolley bags is inefficient and not secure enough.

Method used

The lower assembly, designed with an L-shaped base plate, combined with external fasteners, achieves screwless assembly through a snap-fit ​​structure. The elastic fasteners engage with the snap-fit ​​holes in the housing to form a secure fixation.

Benefits of technology

It improves the installation efficiency and stability of the lower bracket, simplifies the operation steps, and extends the service life of the tie rod.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224461241U_ABST
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Abstract

The utility model relates to a kind of luggage pull rod lower seat mounting structure and lower seat assembly, lower seat is arranged in box shell, external buckle piece is configured outside box shell, lower seat includes the L-shaped base plate with the cross section shape of L, the corner of L-shaped base plate is arc, L-shaped base plate includes vertical plate body and horizontal bottom plate, sleeve portion is formed on L-shaped base plate, vertical plate body and horizontal plate body of L-shaped base plate are equipped with buckling hole, external buckle piece includes the outer bracing plate braced outside box shell, the inside of outer bracing plate is protruded with clamping leg, the inside of outer bracing plate is protruded with clamping leg, clamping leg is buckled in buckling hole after passing through the clearance hole on box shell. Realize that lower seat is screw-free installed to box shell, and it has the advantages of convenient installation and firm and reliable.
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Description

Technical Field

[0001] This utility model relates to the field of luggage, specifically to the mounting structure and assembly of the lower seat for luggage handles. Background Technology

[0002] The top of the trolley case has a mounting position for attaching upper and lower brackets to secure the trolley rod; a lower bracket is installed on the inner bottom of the case. The lower bracket includes an arc-shaped base plate that fits the inner corner of the case. A sleeve is formed on the base plate, and the bottom end of the trolley rod is inserted into the sleeve and secured. The base plate has through holes for screws to pass through, and the base plate is then riveted to the case. This design suffers from low installation efficiency due to the lower bracket. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a luggage handle lower seat assembly that is easy to install and operate, and is firmly and reliably installed.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A luggage handle lower support assembly includes a lower support disposed within a luggage shell. The lower support includes an L-shaped base plate with an L-shaped cross-section. The corners of the L-shaped base plate are arc-shaped. The L-shaped base plate includes a vertical plate and a horizontal base plate. A sleeve portion is formed on the L-shaped base plate. The characteristic feature is that both the vertical plate and the horizontal plate of the L-shaped base plate are provided with fastening holes. It also includes an external fastener disposed on the outside of the luggage shell. The external fastener includes an outer support plate that abuts against the outside of the luggage shell. The inner side of the outer support plate has a protruding locking foot, which engages with the fastening hole.

[0006] Preferably, the outer support plate of the external buckle is L-shaped, and the outer support plate has a first end corresponding to the vertical plate and a second end corresponding to the horizontal plate. The corners of the outer support plate are arc-shaped, and the outer support plate can be elastically deformed to expand the gap between the first end and the second end. There are buckle feet protruding on the inner sides of the first end and the second end of the outer support plate. The buckle feet on the first end are engaged with the buckle holes on the vertical plate, and the buckle feet on the second end are engaged with the buckle holes on the horizontal plate.

[0007] Preferably, both the vertical and horizontal plates have at least two fastening holes distributed in the left-right direction. The fastening holes on the horizontal plate and the fastening holes on the vertical plate are matched one-to-one to form at least two fastening fixing positions. The outer support plate of the external fastener is strip-shaped, and each fastening fixing position is matched with an external fastener.

[0008] Preferably, the latch includes a vertical plate protruding from the inner side of the outer support plate, and a hook at the end of the vertical plate, with the hook facing away from the corner position of the outer support plate. The latching hole is U-shaped and has an engaging edge, limiting edges on both sides of the engaging edge, and an elastic limiting piece opposite to the engaging edge. The connecting end of the elastic limiting piece is close to the corner side of the L-shaped substrate. A latching gap is formed between the free end of the elastic limiting piece and the engaging edge. The latch can press the elastic limiting piece to deform and cause the latching gap to expand. After the hook passes through the latching gap, it engages with the engaging edge. At the same time, the vertical plate is inserted into the latching gap, and the elastic limiting piece elastically resets and stops and limits the vertical plate.

[0009] A luggage handle mounting structure includes a luggage shell and a mounting assembly for the lower seat. The mounting assembly includes a lower seat disposed inside the luggage shell. The lower seat includes an L-shaped base plate with an L-shaped cross-section. The corners of the L-shaped base plate are arc-shaped. The L-shaped base plate includes a vertical plate and a horizontal base plate. A sleeve portion is formed on the L-shaped base plate. The structure is characterized in that: both the vertical plate and the horizontal plate of the L-shaped base plate are provided with fastening holes. It also includes an external fastener disposed on the outside of the luggage shell. The external fastener includes an external support plate that abuts against the outside of the luggage shell. The inner side of the external support plate has a protruding locking foot. The luggage shell is provided with clearance holes corresponding to the positions of the fastening holes. The locking foot passes through the clearance hole and is fastened into the fastening hole.

[0010] By adopting the above technical solution, during assembly, the lower seat is pre-installed onto the mounting position of the case shell. The buckle structure on the lower seat extends into the inside of the case shell through a through hole. Then, the inner fastener is snapped onto the buckle structure of the lower seat. This achieves screwless assembly by clamping and fixing the lower seat and inner fastener to the case shell. Although alternative screw holes and corresponding mating structures are designed in further configurations, these are merely for customer use, providing more options and are not essential structural designs. Furthermore, the inner fastener is laterally fastened to the lower seat, meaning the fastening direction of the inner fastener is perpendicular to the direction of pulling the pull rod. This makes the fastening operation of the inner fastener simpler and more convenient, and also ensures a more secure and reliable fixation of the lower seat. In addition, the structural design of the inner fastener and the buckle structure on the lower seat ensures that the lower seat is securely and reliably restrained on the case shell, thereby improving the service life of the case's pull rod.

[0011] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the mounting structure of the lower seat of the luggage handle of this utility model (showing part of the luggage shell).

[0013] Figure 2 This is an exploded view of the mounting structure of the lower seat of the luggage handle of this utility model;

[0014] Figure 3 This is a diagram showing the fastening operation of the external buckle component of this utility model.

[0015] Figure 4 This is a schematic diagram of the structure of the lower seat of this utility model;

[0016] Figure 5 This is a schematic diagram of the external buckle component of this utility model. Detailed Implementation

[0017] See appendix Figures 1-5 This utility model discloses a luggage handle lower mounting structure, including a luggage shell 1 and a lower mounting assembly mounted on the luggage shell 1. The lower mounting assembly includes a lower mounting 2 disposed inside the luggage shell 1 and an external fastener 3 disposed outside the luggage shell 1. The external fastener 3 and the lower mounting 2 engage to fix the lower mounting 2 inside the luggage shell 1. The lower mounting 2 includes an L-shaped base plate 21 with an L-shaped cross-section, meaning the shape of the L-shaped base plate 21 is adapted to the shape of the luggage shell 1. The L-shaped base plate 21 includes a vertical plate 212 and a horizontal base plate 213. The corner 211 formed by the connection of the vertical plate 212 and the horizontal base plate 213 is arc-shaped. The corner 211 of the L-shaped substrate 21 is arc-shaped. A sleeve portion 22 is formed on the L-shaped substrate 21. In this specific embodiment, it is a double-rod type pull rod. Therefore, the L-shaped substrate 21 has two sleeve portions 22 respectively located on the left and right sides. The vertical plate 212 and the horizontal plate 213 of the L-shaped substrate 21 are provided with fastening holes 210. The external fastener 3 includes an outer support plate 31 that abuts against the outside of the housing 1. The inner side of the outer support plate 31 has a protruding locking foot 32. The housing 1 is provided with a clearance hole 11 corresponding to the position of the fastening hole 210. The locking foot 32 passes through the clearance hole 11 and is fastened in the fastening hole 210.

[0018] To ensure reliable fixation of the lower seat by the external fastener, the outer support plate 31 of the external fastener 3 is L-shaped. The outer support plate 31 has a first end I corresponding to the vertical plate 212 and a second end II corresponding to the horizontal plate 213. The corners of the outer support plate 31 are arc-shaped, allowing it to elastically deform and expand the gap between the first end I and the second end II. Both the first end I and the second end II of the outer support plate 31 have protruding locking feet 32. The locking feet 32 ​​on the first end I engage with the fastening holes on the vertical plate 212, and the locking feet 32 ​​on the second end II engage with the fastening holes on the horizontal plate 213. With the L-shaped design of the outer support plate, the locking feet 32 ​​on the external fastener 3 protrude inwards. Therefore, when not assembled, if... Figure 3As shown, the positions of the latch 32 on the first end I and the second end II of the outer support plate 31 do not directly correspond to the positions of the fastening holes. The latch 32 abuts against the shell 1, pressing against the outer support plate 31, which forces the outer support plate 31 to elastically deform, expanding the gap between the first end I and the second end II until the latch 32 corresponds to and engages with the fastening hole 210. After assembly, this further ensures that the external fastener and the lower seat are reliably engaged. Of course, as a feasible method of this utility model, the external fastener can be a nail fastener with a single latch; or the external fastener can be a straight strip plate with at least two latches on the straight strip plate, etc.; but the corner position of the shell is used to reliably fix the external fastener to the shell.

[0019] In this specific embodiment, both the vertical plate 212 and the horizontal plate 213 have two fastening holes 210 distributed along the left-right direction. The fastening holes 210 on the horizontal plate 213 and the fastening holes 210 on the vertical plate 212 correspond one-to-one and form two fastening fixing positions. Of course, the number of fastening fixing positions can be increased as needed, but two fastening fixing positions can achieve the corresponding fixing requirements. The outer support plate 31 of the external fastener 3 is strip-shaped, and each fastening fixing position is fitted with one external fastener 3. The external fastener has a simple structure, is easy to process, and has low cost. Of course, the shape of the outer support plate can also be an H-shape with two first ends and two second ends, or a Y-shape with one first end and two second ends.

[0020] In one embodiment of this utility model, the locking foot 32 includes a vertical plate 321 protruding from the inner side of the outer support plate 31, and a hook 322 located at the end of the vertical plate 321. The hook 322 faces the side away from the corner position of the outer support plate 31. The fastening hole 210 is U-shaped and has a locking edge 2100, limiting edges located on both sides of the locking edge 2100, and elastic limiting pieces 2101 opposite to the locking edge 2100. The connecting end is near the corner of the L-shaped substrate 21. A locking interval 2102 is formed between the free end of the elastic limiting piece 2101 and the engaging edge 2100. After the locking foot 32 enters the clearance hole 11, it can press against the elastic limiting piece 2101 to deform and cause the locking interval 2102 to expand. The hook head 322 passes through the locking interval 2102 and engages with the engaging edge 2100. Simultaneously, the upright plate 321 is inserted into the locking interval 2102, and the elastic limiting piece 2101 elastically resets and stops and limits the upright plate 321. With this structural design, the locking foot is simple and reliable. The locking foot can press against the elastic limiting piece to deform, allowing the hook head to pass through the locking interval and engage with the engaging edge. After the hook head passes through the locking interval, the elastic limiting piece resets, restoring the locking interval. The elastic limiting piece limits the upright plate of the locking foot, thus ensuring a stable and reliable engagement between the external fastener and the lower seat.

[0021] In another embodiment of this utility model, the housing 1 is provided with a positioning shell portion 12 that is convex inward and concave outward. The positioning shell portion 12 has a convex wall that protrudes inward towards the inside of the housing 1, and a concave cavity 13 corresponding to the convex wall is formed on the outside of the housing 1. The L-shaped base plate 21 is formed with a matching positioning concave surface 214 that snaps onto the convex wall. The outer support plate 31 is placed in the concave cavity 13 formed by the positioning shell portion 12. With this structural design, on the one hand, a positioning fit structure is formed between the lower seat and the housing, making the lower seat easy to install and securely fixed. On the other hand, the positioning shell portion is a concave cavity on the outside of the housing, and the external fastener is placed in the concave cavity, forming protection and achieving concealment. When the outer support plate is strip-shaped, the positioning shell portion is also strip-shaped and has two strips for the two external fasteners to be snapped into one by one. This design allows the positioning shell portion to be reliably formed on the housing by flipping the edge. The L-shaped substrate of the lower base has a hollowed-out arc corner, which not only reduces cost and weight, but also facilitates the forming of the L-shaped substrate.

Claims

1. A lower support assembly for a luggage handle, comprising a lower support disposed within a luggage shell, the lower support including an L-shaped base plate with an L-shaped cross-section, the corners of the L-shaped base plate being arc-shaped, the L-shaped base plate including a vertical plate and a horizontal base plate, and a sleeve portion formed on the L-shaped base plate, characterized in that: The L-shaped base plate has fastening holes on both the vertical and horizontal plates, and also includes an external fastener disposed on the outside of the housing. The external fastener includes an outer support plate that abuts against the outside of the housing, and a locking foot protrudes from the inner side of the outer support plate. The locking foot engages with the fastening hole.

2. The lower support assembly for a luggage handle according to claim 1, characterized in that: The external fastener has an L-shaped outer support plate with a first end corresponding to the vertical plate and a second end corresponding to the horizontal plate. The corners of the outer support plate are rounded. The outer support plate can be elastically deformed to expand the gap between the first end and the second end. There are latches protruding on the inner sides of the first end and the second end of the outer support plate. The latches on the first end engage with the fastening holes on the vertical plate, and the latches on the second end engage with the fastening holes on the horizontal plate.

3. The lower support assembly for a luggage handle according to claim 2, characterized in that: Both the vertical and horizontal plates have at least two fastening holes distributed in the left-right direction. The fastening holes on the horizontal plate and the fastening holes on the vertical plate are matched one-to-one to form at least two fastening fixing positions. The outer support plate of the external buckle is strip-shaped, and each fastening fixing position is matched with an external buckle.

4. The luggage handle lower support assembly according to claim 2 or 3, characterized in that: The latch includes a vertical plate protruding from the inner side of the outer support plate, and a hook at the end of the vertical plate, with the hook facing away from the corner position of the outer support plate. The latching hole is "U" shaped and has an engaging edge, limiting edges on both sides of the engaging edge, and an elastic limiting piece opposite to the engaging edge. The connecting end of the elastic limiting piece is close to the corner side of the L-shaped substrate. The free end of the elastic limiting piece and the engaging edge form an engagement gap. The latch can press the elastic limiting piece to deform and cause the engagement gap to expand. After the hook passes through the engagement gap, it engages with the engaging edge. At the same time, the vertical plate is inserted into the engagement gap, and the elastic limiting piece elastically resets and stops and limits the vertical plate.

5. A mounting structure for a lower seat of a luggage handle, comprising a luggage shell and a lower seat assembly mounted on the luggage shell, the lower seat assembly comprising a lower seat disposed within the luggage shell, the lower seat comprising an L-shaped base plate with an L-shaped cross-section, the corners of the L-shaped base plate being arc-shaped, the L-shaped base plate comprising a vertical plate and a horizontal base plate, and a sleeve portion formed on the L-shaped base plate, characterized in that: The L-shaped base plate has fastening holes on both the vertical and horizontal plates, and also includes an external fastener disposed on the outside of the housing. The external fastener includes an outer support plate that abuts against the outside of the housing. The inner side of the outer support plate has a protruding locking foot. The housing has a clearance hole corresponding to the position of the fastening hole. The locking foot passes through the clearance hole and is fastened into the fastening hole.

6. The mounting structure for the lower seat of the luggage pull rod according to claim 5, characterized in that: The external fastener has an L-shaped outer support plate with a first end corresponding to the vertical plate and a second end corresponding to the horizontal plate. The corners of the outer support plate are rounded. The outer support plate can be elastically deformed to expand the gap between the first end and the second end. There are latches protruding on the inner sides of the first end and the second end of the outer support plate. The latches on the first end engage with the fastening holes on the vertical plate, and the latches on the second end engage with the fastening holes on the horizontal plate.

7. The mounting structure for the lower seat of the luggage pull rod according to claim 6, characterized in that: Both the vertical and horizontal plates have at least two fastening holes distributed in the left-right direction. The fastening holes on the horizontal plate and the fastening holes on the vertical plate are matched one-to-one to form at least two fastening fixing positions. The outer support plate of the external buckle is strip-shaped, and each fastening fixing position is matched with an external buckle.

8. The mounting structure for the lower seat of the luggage pull rod according to claim 6 or 7, characterized in that: The latch includes a vertical plate protruding from the inner side of the outer support plate, and a hook at the end of the vertical plate. The hook faces the side away from the corner position of the outer support plate. The latching hole is "U" shaped and has an engaging edge, limiting edges on both sides of the engaging edge, and an elastic limiting piece opposite to the engaging edge. The connecting end of the elastic limiting piece is close to the corner side of the L-shaped substrate. The free end of the elastic limiting piece and the engaging edge form an engagement gap. After the latch enters the clearance hole, it can press the elastic limiting piece to deform and cause the engagement gap to expand. After the hook passes through the engagement gap, it engages with the engaging edge. At the same time, the vertical plate is inserted into the engagement gap, and the elastic limiting piece elastically resets and stops and limits the vertical plate.

9. The mounting structure for the lower seat of the luggage pull rod according to claim 6 or 7, characterized in that: The housing is provided with a positioning shell part that is convex in the inside and concave in the outside. The positioning shell part has a convex wall that protrudes into the inside of the housing and a concave cavity that corresponds to the convex wall is formed on the outside of the housing. The L-shaped base plate is formed with a matching positioning concave surface that is fastened to the convex wall. The outer support plate is placed in the concave cavity formed by the positioning shell part.