Electric trolley case with buffer structure
Patent Information
- Application Number
- CN202522303377.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-30
AI Technical Summary
[0004]本实用新型的目的在于一种带有缓冲结构的电动拉杆箱，解决传统的电动拉杆箱在行驶时，其轮体直接或通过简单刚性结构与箱体连接，当行进在凹凸不平的路面时，路面冲击和震动会毫无缓冲地传递至箱体，导致箱内物品易因剧烈颠簸而损坏，同时也会影响自动轮等电动部件的稳定性和使用寿命，用户体验较差的问题
（1）本实用新型当电动拉杆箱在凹凸不平的路面上行驶时，移动轮会遇到冲击和震动，路面不平产生的冲击通过移动轮传递至转动杆和活动座，活动座受力后，会沿着四个固定于安装板上的导向滑杆向上滑动，从而压缩套接在导向滑杆外表面的弹簧，弹簧通过其弹性形变，吸收并缓冲了大部分来自地面的初始冲击力，活动座向上运动时，会带动固定在其上表面的矩形壳一同上升，矩形壳内的限位滑杆上的两个移动块随之运动，并带动与它们固定连接的两个第一连接壳相互靠近，第一连接壳的运动，会牵引与之转动连接的支撑板动作，支撑板的另一端与固定于安装板下表面的第二连接壳转动连接，从而形成一个稳定的联动支撑结构，将活动座的垂直运动转化为支撑板的角度变化，在两个第一连接壳之间固定安装的阻尼杆，会随着第一连接壳的相对运动而伸缩，阻尼杆能够有效地抑制弹簧被压缩和回弹时产生的往复振荡，快速消耗震动能量，使箱体的运动更加平稳，避免出现持续晃动，达到能有效吸收和化解行驶过程中的冲击与震动，极大提升了拉杆箱在粗糙路面上行驶的平稳性。
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Figure CN224761437U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric trolley case technology, specifically an electric trolley case with a buffer structure. Background Technology
[0002] Electric rolling suitcases, also known as smart suitcases, electric suitcases, or cycling suitcases, are modern travel suitcases that integrate an electric drive system (usually a hub motor) and an intelligent control system. They fundamentally change the way people use suitcases, transforming them from purely "dragging" to partially "cycling" or "automatic following," greatly freeing up the user's hands and reducing the burden of travel.
[0003] Traditional electric suitcases have wheels that are directly or through a simple rigid structure connected to the suitcase body when in motion. When traveling on uneven roads, the impact and vibration of the road surface are transmitted to the suitcase body without any buffering, which makes the items inside the suitcase easily damaged by violent bumps. At the same time, it also affects the stability and service life of electric components such as automatic wheels, resulting in a poor user experience. Utility Model Content
[0004] The purpose of this utility model is to provide an electric trolley case with a buffer structure, which solves the problem that in traditional electric trolley cases, the wheels are directly or through a simple rigid structure connected to the case body. When traveling on uneven roads, the impact and vibration of the road surface are transmitted to the case body without any buffer, causing the items inside the case to be easily damaged by violent bumps. At the same time, it also affects the stability and service life of electric components such as automatic wheels, resulting in a poor user experience.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is an electric trolley case with a buffer structure, including a case body, a mounting frame and automatic wheels. The case body is mounted on the outer surface of the mounting frame, and an automatic wheel is mounted on one end of the mounting frame. A buffer mechanism is mounted on the end of the case body away from the automatic wheel, and the buffer end of the buffer mechanism is connected to the case body.
[0006] Furthermore, the buffer mechanism includes a mounting plate, which is fixedly mounted on the lower surface of the housing. Four guide slide rods are fixedly mounted inside the mounting plate. Springs are sleeved on the outer surface of each guide slide rod. Movable seats are slidably connected to the outer surface of one end of each of the four guide slide rods. Rotating rods are rotatably connected to the inner wall of the movable seats. Both ends of the rotating rods are fixedly mounted with movable wheels.
[0007] Furthermore, a rectangular shell is fixedly installed on the upper surface of the movable seat, a limiting slide rod is fixedly installed on the inner wall of the rectangular shell, and a moving block is slidably connected to the outer surfaces of both ends of the limiting slide rod, and a first connecting shell is fixedly installed on the upper surface of each moving block.
[0008] Furthermore, a second connecting shell is fixedly installed on the lower surfaces of both ends of the mounting plate, and a support plate is rotatably connected to one end of each of the second connecting shells. One end of each support plate is rotatably connected to the interior of the first connecting shell.
[0009] Furthermore, a damping rod is fixedly installed between the two first connecting shells.
[0010] Furthermore, one end of each spring is fixedly connected to the lower surface of the mounting plate, and the other end of each spring is fixedly connected to the upper surface of the movable seat.
[0011] This utility model has the following beneficial effects: (1) When the electric trolley case travels on an uneven road surface, the moving wheels will encounter impacts and vibrations. The impact generated by the uneven road surface is transmitted to the rotating rod and the movable seat through the moving wheels. After the movable seat is subjected to force, it will slide upward along the four guide slides fixed to the mounting plate, thereby compressing the spring sleeved on the outer surface of the guide slide. The spring absorbs and buffers most of the initial impact force from the ground through its elastic deformation. When the movable seat moves upward, it will drive the rectangular shell fixed on its upper surface to rise together. The two moving blocks on the limiting slides inside the rectangular shell will move accordingly, and drive the two first connecting shells fixed to them to move closer to each other. The movement of the seat pulls the rotating support plate, and the other end of the support plate is rotatably connected to the second connecting shell fixed to the lower surface of the mounting plate, thus forming a stable linkage support structure. This converts the vertical movement of the movable seat into an angular change of the support plate. The damping rod, which is fixedly installed between the two first connecting shells, extends and retracts with the relative movement of the first connecting shells. The damping rod can effectively suppress the reciprocating oscillations generated when the spring is compressed and rebounds, quickly dissipating vibration energy and making the movement of the suitcase more stable, avoiding continuous shaking. This effectively absorbs and dissipates the impact and vibration during the journey, greatly improving the stability of the suitcase on rough roads.
[0012] (2) By adopting four guide slide rods and a linkage support frame consisting of a rectangular shell, a limiting slide rod, a moving block, a first connecting shell, a second connecting shell, and a support plate, this utility model ensures that the movable seat will not wobble when moving up and down. The overall structure is rigid and the force distribution is uniform, thus achieving a long service life.
[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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.
[0015] Figure 1 This is a schematic diagram of the overall structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the buffer mechanism structure of this utility model; Figure 4 This is a cross-sectional schematic diagram of part of the buffer mechanism structure of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Housing; 2. Mounting frame; 3. Automatic wheel; 4. Buffer mechanism; 401. Mounting plate; 402. Guide slide bar; 403. Movable seat; 404. Rotating rod; 405. Moving wheel; 406. Spring; 407. Rectangular shell; 408. Limiting slide bar; 409. Moving block; 410. First connecting shell; 411. Second connecting shell; 412. Support plate; 413. Damping rod. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0017] Please see Figures 1-4 As shown, this utility model is an electric trolley case with a buffer structure, including a case body 1, a mounting frame 2 and an automatic wheel 3. The case body 1 is mounted on the outer surface of the mounting frame 2, and the automatic wheel 3 is mounted on one end of the mounting frame 2. A buffer mechanism 4 is mounted on the end of the case body 1 away from the automatic wheel 3, and the buffer end of the buffer mechanism 4 is connected to the case body 1. The buffer mechanism 4 includes a mounting plate 401, which is fixedly mounted on the lower surface of the housing 1. Four guide slide rods 402 are fixedly mounted inside the mounting plate 401. Springs 406 are sleeved on the outer surface of each guide slide rod 402. Movable seats 403 are slidably connected to the outer surface of one end of each of the four guide slide rods 402. Rotating rods 404 are rotatably connected to the inner wall of the movable seats 403. Moving wheels 405 are fixedly mounted on both ends of the rotating rods 404. A rectangular shell 407 is fixedly installed on the upper surface of the movable seat 403. A limiting slide rod 408 is fixedly installed on the inner wall of the rectangular shell 407. A moving block 409 is slidably connected to both outer surfaces of the limiting slide rod 408. A first connecting shell 410 is fixedly installed on the upper surface of the moving block 409. The lower surfaces of both ends of the mounting plate 401 are fixedly mounted with a second connecting shell 411. One end of the second connecting shell 411 is rotatably connected to a support plate 412. One end of the support plate 412 is rotatably connected to the inside of the first connecting shell 410. A damping rod 413 is fixedly installed between the two first connecting shells 410; One end of each spring 406 is fixedly connected to the lower surface of the mounting plate 401, and the other end of each spring 406 is fixedly connected to the upper surface of the movable seat 403. When the electric suitcase travels on uneven surfaces, the moving wheels 405 encounter impacts and vibrations. The impact from the uneven surface is transmitted through the moving wheels 405 to the rotating rod 404 and the movable seat 403. Under this force, the movable seat 403 slides upwards along the four guide rods 402 fixed to the mounting plate 401, thereby compressing the springs 406 sleeved on the outer surface of the guide rods 402. The springs 406, through their elastic deformation, absorb and buffer most of the initial impact force from the ground. As the movable seat 403 moves upwards, it causes the rectangular shell 407 fixed to its upper surface to rise together. The two moving blocks 409 on the limiting rods 408 inside the rectangular shell 407 move accordingly, causing the two first connecting shells 410 fixedly connected to them to move closer together. The movement of the shell 410 will pull the support plate 412, which is rotatably connected to it, to move. The other end of the support plate 412 is rotatably connected to the second connecting shell 411, which is fixed to the lower surface of the mounting plate 401, thus forming a stable linkage support structure. This converts the vertical movement of the movable seat 403 into an angular change of the support plate 412. The damping rod 413, which is fixedly installed between the two first connecting shells 410, will extend and retract with the relative movement of the first connecting shells 410. The damping rod 413 can effectively suppress the reciprocating oscillation generated when the spring 406 is compressed and rebounds, quickly dissipate vibration energy, make the movement of the box 1 more stable, avoid continuous shaking, and effectively absorb and resolve the impact and vibration during the journey, greatly improving the stability of the suitcase on rough roads.
[0018] Working principle: During use, when the electric suitcase travels on uneven surfaces, the moving wheels 405 will encounter impacts and vibrations. The impact generated by the uneven surface is transmitted through the moving wheels 405 to the rotating rod 404 and the movable seat 403. After being subjected to force, the movable seat 403 will slide upward along the four guide rods 402 fixed on the mounting plate 401, thereby compressing the springs 406 sleeved on the outer surface of the guide rods 402. The springs 406 absorb and buffer most of the initial impact force from the ground through their elastic deformation. When the movable seat 403 moves upward, it will drive the rectangular shell 407 fixed on its upper surface to rise together. The two moving blocks 409 on the limiting rods 408 inside the rectangular shell 407 will move accordingly, causing the two first connecting shells 410 fixedly connected to them to move closer to each other. The movement of the first connecting shell 410 will pull the support plate 412, which is rotatably connected to it, to move. The other end of the support plate 412 is rotatably connected to the second connecting shell 411, which is fixed to the lower surface of the mounting plate 401, thus forming a stable linkage support structure. This converts the vertical movement of the movable seat 403 into an angular change of the support plate 412. The damping rod 413, which is fixedly installed between the two first connecting shells 410, will extend and retract with the relative movement of the first connecting shells 410. The damping rod 413 can effectively suppress the reciprocating oscillation generated when the spring 406 is compressed and rebounds, quickly dissipate vibration energy, make the movement of the box 1 more stable, avoid continuous shaking, and effectively absorb and resolve the impact and vibration during the driving process, greatly improving the stability of the suitcase on rough roads.
[0019] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An electric trolley case with a buffer structure, comprising a case body (1), a mounting frame (2), and automatic wheels (3), wherein the case body (1) is mounted on the outer surface of the mounting frame (2), and an automatic wheel (3) is mounted on one end of the mounting frame (2), characterized in that: A buffer mechanism (4) is installed at the end of the housing (1) away from the automatic wheel (3), and the buffer end of the buffer mechanism (4) is connected to the housing (1); The buffer mechanism (4) includes a mounting plate (401), which is fixedly installed on the lower surface of the housing (1). Four guide slide rods (402) are fixedly installed inside the mounting plate (401). Springs (406) are sleeved on the outer surface of each guide slide rod (402). Movable seats (403) are slidably connected to the outer surface of one end of each of the four guide slide rods (402). Rotating rods (404) are rotatably connected to the inner wall of the movable seats (403). Moving wheels (405) are fixedly installed at both ends of the rotating rods (404). A rectangular shell (407) is fixedly installed on the upper surface of the movable seat (403). A limiting slide rod (408) is fixedly installed on the inner wall of the rectangular shell (407). A moving block (409) is slidably connected to both outer surfaces of the limiting slide rod (408). A first connecting shell (410) is fixedly installed on the upper surface of the moving block (409). The mounting plate (401) has a second connecting shell (411) fixedly installed on the lower surfaces of both ends. A support plate (412) is rotatably connected to one end of the second connecting shell (411). One end of the support plate (412) is rotatably connected to the inside of the first connecting shell (410). A damping rod (413) is fixedly installed between the two first connecting shells (410).
2. The electric trolley case with a buffer structure according to claim 1, characterized in that: One end of each spring (406) is fixedly connected to the lower surface of the mounting plate (401), and the other end of each spring (406) is fixedly connected to the upper surface of the movable seat (403).