Impact-resistant weather-resistant PC alloy draw-bar box
By incorporating a buffer mechanism inside the suitcase, a damping effect is created using friction and the elasticity of springs. This solves the problems of items moving freely inside the suitcase and parts wearing out during impacts or vibrations, achieving greater stability and durability.
Patent Information
- Application Number
- CN202520319718.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing suitcases lack secure storage or cushioning when subjected to impacts or external vibrations, causing items to move around freely and resulting in severe wear and tear on accessories, thus affecting the stability of the suitcase.
The case is made of impact-resistant and weather-resistant PC alloy and has an internal buffer mechanism, including components such as sleeves, baffles, movable rods, transmission rods, and sliders. Through friction and the elasticity of springs, a damping effect is formed, which disperses and dissipates kinetic energy layer by layer, reducing the impact caused by shaking.
It effectively reduces the impact caused by shaking inside the enclosure, improves the stability and safety of the enclosure in bumpy environments, and enhances the system's impact resistance and durability.
Smart Images

Figure CN223489288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trolley case technology, and in particular to an impact-resistant and weather-resistant PC alloy trolley case. Background Technology
[0002] A rolling suitcase is a type of luggage equipped with a pull handle and wheels. It is widely used due to its convenience. Rolling suitcases are further categorized by the pull handle: single-tube and double-tube handles are available. The handle itself can also be square or round, designed to facilitate dragging while walking and significantly reduce the burden on the rider.
[0003] However, in existing technologies, when subjected to impact or external vibration, the items inside the suitcase will move freely within the suitcase due to the lack of sufficient fixed space or cushioning design, causing damage to the items or scratches on the external surface. In addition, when the wheels and handles of the suitcase are subjected to vibration, not only are they worn or damaged, but the vibration is also transmitted to the inside of the suitcase through these components. The impact and rotation of the wheels, and the pulling and vibration of the handles, will all transmit vibration energy to a certain extent, affecting the overall stability of the suitcase. Utility Model Content
[0004] The purpose of this invention is to solve the problem in the prior art that items inside the case will move freely inside the case under such impact due to the lack of sufficient fixed space or cushioning design, and proposes an impact-resistant and weather-resistant PC alloy trolley case.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an impact-resistant and weather-resistant PC alloy trolley case, including a case body, with multiple anti-collision strips fixedly connected to both sides of the case body, an inner shell provided in the inner cavity of the case body, and a buffer mechanism provided on one side of the inner shell;
[0006] The buffer mechanism includes a sleeve, with a baffle slidably connected to the inner cavity of the sleeve. A movable rod is fixedly connected to one side of the baffle, with one end of the movable rod penetrating the sleeve and a second hook fixedly connected to the other end. A fixed frame is suspended from the second hook. A connecting frame is rotatably sleeved at both the top and bottom of the fixed frame. A transmission rod is fixedly connected to one end of the connecting frame, with a movable block slidably connected to one end of the transmission rod. A slider is rotatably connected to the bottom of the movable block, and a limit plate is fixedly connected to one end of the transmission rod.
[0007] Preferably, a first spring is provided between the limiting plate and the movable block, and the first spring is sleeved on the outer surface of the transmission rod.
[0008] Preferably, a first hook is fixedly connected to one end of the sleeve, and a fixing rod is suspended from one end of the first hook.
[0009] Preferably, the bottom of the fixing rod is fixedly connected to the inner wall of the box.
[0010] Preferably, the inner cavity of the sleeve is provided with a second spring, which is sleeved on the outer surface of the movable rod.
[0011] Preferably, the bottom of the slider is slidably connected to a track plate, and the bottom of the track plate is fixedly connected to the inner wall of the box.
[0012] Preferably, a movable frame is fixedly connected to one end of the fixed frame.
[0013] Preferably, a movable plate is fixedly connected to the side wall of the inner shell.
[0014] Preferably, both ends of the movable plate are fixedly connected to the movable frame.
[0015] Preferably, a mounting plate is fixedly connected to the side wall of the housing, and a handle is slidably connected inside the mounting plate.
[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0017] 1. In this utility model, the active energy of the inner shell is gradually dispersed during the transmission process, and effective energy absorption and consumption are achieved through the coordinated movement of multiple components. The sliding and oscillation between the transmission rod and the moving block, the movement of the slider along the track, and the action of the moving rod and the baffle all form a damping effect through friction and the elastic action of the spring. This damping effect can quickly attenuate kinetic energy and effectively reduce the impact between the inner shell and the inner wall of the box caused by shaking. At the same time, the first spring and the second spring absorb energy through alternating compression and extension, further mitigating the shaking impact. The overall design reduces component wear while improving the stability and safety of the box in a bumpy environment, providing it with a reliable protection mechanism and impact resistance.
[0018] 2. In this utility model, the transmission rod slides along the inner side of the movable block and drives the limiting plate to move, squeezing the first spring to achieve energy absorption and elastic recovery. While the movable rod pushes the baffle to move, it further alleviates the impact of external force by compressing the second spring, enhancing the stability of the system. The slider performs linear reciprocating motion under the restriction of the track plate, effectively avoiding deviation. The friction between the track plate and the slider forms a damping effect, quickly consuming kinetic energy and reducing the vibration amplitude. This design ensures the accuracy and stability of each component in dynamic operation, while significantly improving the system's adaptability to impact and vibration, ensuring the overall reliability and durability of operation. Attached Figure Description
[0019] Figure 1 This utility model presents a schematic diagram of the overall three-dimensional structure of an impact-resistant and weather-resistant PC alloy trolley case;
[0020] Figure 2A three-dimensional structural diagram of the internal structure of the impact-resistant and weather-resistant PC alloy trolley case proposed in this utility model;
[0021] Figure 3 A three-dimensional structural diagram of the buffer mechanism for an impact-resistant and weather-resistant PC alloy trolley case proposed in this utility model;
[0022] Figure 4 A top view schematic diagram of the buffer mechanism of the impact-resistant and weather-resistant PC alloy trolley case proposed in this utility model;
[0023] Figure 5 This utility model presents a three-dimensional structural diagram of the shock-absorbing mechanism of a PC alloy trolley case with impact resistance and weather resistance.
[0024] Legend: 1. Box body; 11. Inner shell; 12. Movable plate; 2. Anti-collision strip; 3. Mounting plate; 4. Handle; 5. Buffer mechanism; 51. Track plate; 52. Transmission rod; 521. Limiting plate; 522. Movable block; 523. Connecting frame; 53. Movable frame; 531. Fixed frame; 54. Slider; 55. First spring; 56. Sleeve; 561. First hook; 57. Fixed rod; 58. Movable rod; 581. Baffle; 582. Second hook; 59. Second spring. Detailed Implementation
[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0027] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides an impact-resistant and weather-resistant PC alloy trolley case, including a case body 1, multiple anti-collision strips 2 are fixedly connected to both sides of the case body 1, an inner shell 11 is provided in the inner cavity of the case body 1, and a buffer mechanism 5 is provided on one side of the inner shell 11.
[0028] The buffer mechanism 5 includes a sleeve 56, with a baffle 581 slidably connected to the inner cavity of the sleeve 56. A movable rod 58 is fixedly connected to one side of the baffle 581. One end of the movable rod 58 passes through the sleeve 56, and a second hook 582 is fixedly connected to one end of the movable rod 58. A fixed frame 531 is suspended from the second hook 582. A connecting frame 523 is rotatably sleeved at both the top and bottom of the fixed frame 531. A transmission rod 52 is fixedly connected to one end of the connecting frame 523. A movable block 522 is slidably connected to one end of the transmission rod 52. A slider 54 is rotatably connected to the bottom of the movable block 522. A limit plate 521 is fixedly connected to one end of the transmission rod 52.
[0029] A first spring 55 is provided between the limiting plate 521 and the movable block 522, and the first spring 55 is sleeved on the outer surface of the transmission rod 52. A first hook 561 is fixedly connected to one end of the sleeve 56, and a fixed rod 57 is suspended from the other end of the first hook 561.
[0030] The specific settings and functions of this embodiment will be described in detail below. In actual use, if there is shaking or the vehicle is bumpy during the ride, the inner shell 11 will move inside the box 1. During the movement, the inner shell 11 will not only drive the movement of the movable frame 53 through the transmission of force, but will also transmit the force layer by layer to the fixed frame 531 and the connecting frame 523, and further to the first hook 561.
[0031] Under this dynamic action, the two transmission rods 52 move under the drive of the connecting frame 523, and subsequently oscillate to a certain extent. During this process, relative sliding occurs between the transmission rods 52 and the movable block 522, and the movable block 522 itself also moves due to the oscillation of the transmission rods 52. The movement of the movable block 522 further affects the rotating block, causing it to drive the bottom slider 54 to move along the track, while simultaneously rotating relative to the slider 54.
[0032] Furthermore, the first hook 561 transmits force to the movable rod 58, which in turn pushes the baffle 581 to slide inside the sleeve 56. During this series of movements, the movement of the movable rod 58 and the transmission rod 52 causes the first spring 55 and the second spring 59 to alternately compress and extend, thereby absorbing and mitigating kinetic energy. Simultaneously, the friction between the slider 54 and the track plate 51, the friction between the movable rod 58 and the sleeve 56, and the friction between the transmission rod 52 and the movable block 522 collectively produce a damping effect.
[0033] The damping effect can rapidly dissipate the kinetic energy generated by the movement of the inner shell 11, thereby quickly attenuating the energy transmitted by the shaking. Through this mechanism, direct impact between the inner shell 11 and the inner wall of the housing 1 can be effectively avoided, preventing component damage caused by frequent shaking. At the same time, this design enables multiple components to move in coordination, achieving self-suppression of shaking during the rapid energy dissipation process, ensuring the stability and safety of the housing 1 in bumpy environments.
[0034] Example 2: Figure 1 - Figure 5 As shown, the bottom of the fixed rod 57 is fixedly connected to the inner wall of the housing 1. A second spring 59 is installed inside the sleeve 56, and the second spring 59 is sleeved on the outer surface of the movable rod 58. A track plate 51 is slidably connected to the bottom of the slider 54, and the bottom of the track plate 51 is fixedly connected to the inner wall of the housing 1. A movable frame 53 is fixedly connected to one end of the fixed frame 531. A movable plate 12 is fixedly connected to the side wall of the inner shell 11. Both ends of the movable plate 12 are fixedly connected to the movable frame 53. A mounting plate 3 is fixedly connected to the side wall of the housing 1, and a handle 4 is slidably connected inside the mounting plate 3.
[0035] The overall effect of this embodiment is that during the movement of the transmission rod 52 and the movable block 522, the transmission rod 52 slides along the inner side of the movable block 522. This sliding action further drives the limiting plate 521 to move. When the limiting plate 521 begins to move, it exerts a squeezing effect on the movable block 522, thereby applying pressure to the first spring 55. As the limiting plate 521 continues to move, the first spring 55 will expand and contract under this squeezing action, providing a certain amount of buffering and elastic restoring force for the system.
[0036] Meanwhile, when the movable rod 58 drives the baffle 581 to move, the baffle 581 will cooperate with the inner wall of the sleeve 56, compressing the second spring 59 wrapped around the outer surface of the movable rod 58. During this process, the second spring 59 will also undergo alternating compression and release, further absorbing external forces and enhancing the overall stability and seismic performance of the system.
[0037] Slider 54 moves under the influence of movable block 522. During this process, the movement of slider 54 is restricted by track plate 51. This restriction effectively controls the movement path of slider 54, allowing it to reciprocate linearly within track plate 51 and preventing deviation or skewness caused by external forces or other disturbances. This design not only improves the accuracy of the motion but also ensures the stability and consistency of the entire system during dynamic operation.
[0038] In addition, the friction between the track plate 51 and the slider 54 also acts as a damping force, helping to reduce the accumulation and transfer of energy within the system. During the reciprocating motion of the slider 54, this damping effect can further absorb and dissipate the energy generated by vibration, thereby reducing the sway amplitude and improving reliability and durability.
[0039] The various components work together throughout the process to form a dynamic response and buffering system that is highly adaptable to sudden shocks and vibrations.
[0040] The usage and working principle of this device are as follows: During use, if there is any shaking, such as when the vehicle is bumping, the inner shell 11 will shift inside the housing 1. During this process, the movement of the inner shell 11 will not only cause the movable frame 53 to move accordingly, but the force will also be transmitted through the fixed frame 531 to the connecting frame 523 and the first hook 561.
[0041] Driven by the connecting frame 523, the two transmission rods 52 begin to move, exhibiting a swinging phenomenon. During this swinging motion, the transmission rods 52 slide relative to the movable block 522, causing the movable block 522 to move accordingly. As the movable block 522 moves, it both drives the bottom slider 54 to reciprocate within the path defined by the track plate 51, preventing skewness, and also rotates relative to the slider 54.
[0042] Furthermore, the first hook 561 transmits force to the movable rod 58, causing the movable rod 58 to slide the baffle 581 inside the sleeve 56. During the movement of the movable rod 58 and the transmission rod 52, the first spring 55 and the second spring 59 will extend and retract due to the force. Specifically, when the transmission rod 52 moves with the movable block 522, the transmission rod 52 drives the limiting plate 521 to move, and the limiting plate 521 and the movable block 522 press against each other, causing the first spring 55 to extend and retract; when the movable rod 58 drives the baffle 581 to move, the baffle 581, in conjunction with the sleeve 56, presses against the second spring 59 on the outer surface of the movable rod 58. Meanwhile, since there is friction between the slider 54 and the track plate 51, between the movable rod 58 and the sleeve 56, and between the transmission rod 52 and the movable block 522, when multiple components shake in tandem, these frictions play a damping role, and the movement between components quickly consumes energy, thereby efficiently reducing the energy transmitted by the shaking, which not only prevents the inner shell 11 from colliding with the inner wall of the box 1, but also prevents the inner shell 11 from shaking continuously.
[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An impact-resistant and weather-resistant PC alloy trolley case, comprising a case body (1), wherein multiple anti-collision strips (2) are fixedly connected to both sides of the case body (1), characterized in that: The inner cavity of the box (1) is provided with an inner shell (11), and a buffer mechanism (5) is provided on one side of the inner shell (11); The buffer mechanism (5) includes a sleeve (56), a baffle (581) is slidably connected to the inner cavity of the sleeve (56), a movable rod (58) is fixedly connected to one side of the baffle (581), one end of the movable rod (58) passes through the sleeve (56), and a second hook (582) is fixedly connected to one end of the movable rod (58). A fixed frame (531) is suspended from the second hook (582). A connecting frame (523) is rotatably sleeved at both the top and bottom of the fixed frame (531). A transmission rod (52) is fixedly connected to one end of the connecting frame (523). A movable block (522) is slidably connected to one end of the transmission rod (52). A slider (54) is rotatably connected to the bottom of the movable block (522). A limit plate (521) is fixedly connected to one end of the transmission rod (52).
2. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: A first spring (55) is provided between the limiting plate (521) and the movable block (522), and the first spring (55) is sleeved on the outer surface of the transmission rod (52).
3. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: One end of the sleeve (56) is fixedly connected to a first hook (561), and a fixing rod (57) is suspended from one end of the first hook (561).
4. The impact-resistant and weather-resistant PC alloy trolley case according to claim 3, characterized in that: The bottom of the fixing rod (57) is fixedly connected to the inner wall of the box (1).
5. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: The inner cavity of the sleeve (56) is provided with a second spring (59), which is sleeved on the outer surface of the movable rod (58).
6. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: The bottom of the slider (54) is slidably connected to the track plate (51), and the bottom of the track plate (51) is fixedly connected to the inner wall of the box (1).
7. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: The fixed frame (531) is fixedly connected to a movable frame (53) at one end.
8. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: The inner shell (11) has a movable plate (12) fixedly connected to its side wall.
9. The impact-resistant and weather-resistant PC alloy trolley case according to claim 8, characterized in that: Both ends of the movable plate (12) are fixedly connected to the movable frame (53).
10. The impact-resistant and weather-resistant PC alloy trolley case according to claim 1, characterized in that: The side wall of the box (1) is fixedly connected to an installation plate (3), and a handle (4) is slidably connected inside the installation plate (3).