Trunk loading device
By introducing a sliding rack and airbag assembly into the trunk loading device, the problems of inconvenience in loading and unloading, high noise, and risk of injury in the existing technology are solved, achieving greater ease of use and safety, and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-03
AI Technical Summary
Existing trunk cargo trays are inconvenient to access, noisy, and pose a risk of injury, thus affecting the user experience.
Design a trunk loading device that uses a sliding frame and a buffer airbag assembly. The sliding frame allows the loading tray to slide out, and the buffer airbag assembly provides cushioning when the loading tray is closed to prevent sudden impact and reduce noise.
It improves ease of use, reduces the risk of injury and noise, and enhances the user experience.
Smart Images

Figure CN223962084U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive trunk accessory systems, specifically to a trunk loading device. Background Technology
[0002] Currently, some car models are equipped with a cargo tray in the trunk, which can be raised using a gas strut or hydraulic strut to facilitate access to items in the storage space below. However, existing trunk cargo trays typically can only be flipped in place, presenting a technical problem of inconvenience in retrieving items from the tray, resulting in a poor user experience and a lack of ease of use. Furthermore, existing trunk cargo trays usually rely solely on the strut for opening and closing. During the closing process, if the cargo tray exceeds the strut's support angle, the strut loses its support, and the cargo tray can easily crash directly into the bottom support structure, potentially causing injury. Additionally, the noise generated also negatively impacts the user experience.
[0003] Therefore, it is necessary to improve the design of the existing trunk cargo tray structure in order to reduce the risk of injury from the cargo tray, reduce noise during use, improve ease of use, and thus enhance the user experience. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a trunk loading device that can reduce the risk of injury from the loading tray, reduce noise during use, improve ease of use, and thus enhance the user experience.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a trunk loading device, comprising: a mounting base; a sliding frame, which is slidably mounted on the mounting base; a loading tray, which is rotatably mounted on the sliding frame; a support rod, which is disposed between the sliding frame and the loading tray for driving the loading tray to rotate; and a buffer airbag assembly, comprising an elastic airbag disposed between the sliding frame and the loading tray to provide buffer for the rotation of the loading tray.
[0006] Furthermore, the sliding frame includes a sliding plate arranged laterally and slidably mounted on the mounting base. One end of the cargo tray is rotatably connected to the sliding plate, and the other end is mounted on the mounting base. The elastic airbag is mounted on the sliding plate and arranged adjacent to the rotating end of the cargo tray.
[0007] Furthermore, the buffer airbag assembly also includes a return spring and a connecting block disposed on the sliding plate. The bottom opening of the elastic airbag is sealed and connected to the connecting block. The return spring is disposed inside the elastic airbag to lift the elastic airbag when the cargo tray is opened. The connecting block is provided with a vent hole.
[0008] Furthermore, the connecting block is also provided with an intake one-way valve port for enhancing the intake rate.
[0009] Furthermore, the connecting block is fixed to the bottom of the sliding plate, and the elastic airbag extends upward through the sliding plate.
[0010] Furthermore, the elastic airbag has a shape that is small at both ends and large in the middle.
[0011] Furthermore, hinge seats are provided at both ends of the sliding plate, and the loading tray is hinged to the two sets of hinge seats respectively; an auxiliary support beam is fixed on the hinge seat and arranged along the sliding direction of the sliding plate. The auxiliary support beam is fixedly connected to the sliding plate, and the loading tray is erected on the auxiliary support beam and the mounting foundation when it is in the closed state.
[0012] Furthermore, the mounting base includes a mounting frame, on which a roller shutter mechanism is provided, and the rotating end of the loading tray is connected to the roller shutter pull-out end of the roller shutter mechanism.
[0013] Furthermore, the mounting frame is equipped with supporting rollers, and when the tray is closed, the end away from the rotating end rests on the supporting rollers.
[0014] Furthermore, the loading tray is provided with a receiving groove corresponding to the support rod, and the support rod is stored in the receiving groove when the loading tray is closed.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] The trunk loading device provided by this utility model can reduce the risk of injury from the loading tray, reduce noise during use, and improve ease of use, thereby enhancing the user experience. Specifically, the loading tray features a sliding frame that allows it to slide out, improving convenience when retrieving items. Simultaneously, the airbag assembly, in conjunction with the support rod, enables the loading tray to close slowly, preventing it from suddenly falling and injuring the operator, thus reducing the risk of injury. Furthermore, it prevents noise from the loading tray impacting the mounting base, and the contact between the loading tray and the airbag is noiseless, further reducing noise and improving the overall user experience. Of course, the overall structure of this trunk loading device is relatively simple, which helps control costs.
[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the axial structure of an embodiment of the present invention;
[0019] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;
[0020] Figure 3 This is a cross-sectional schematic diagram of the connection between the buffer airbag assembly and the sliding plate according to an embodiment of the present invention;
[0021] Reference numerals: 1-Installation base; 101-Bottom frame; 101a-Support roller; 2-Sliding frame; 201-Sliding plate; 202-Hinge seat; 203-Auxiliary support beam; 203a-Support plate; 3-Loading tray; 3a-Receiving slot; 4-Strut; 5-Buffer airbag assembly; 501-Elastic airbag; 502-Reset spring; 503-Connecting block; 503a-Ventilation port; 503b-Inlet one-way valve port; 6-Roller curtain mechanism. Detailed Implementation
[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only for illustrating the basic concept of this utility model. Unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.
[0023] It should be noted that, unless otherwise specified, the "front and back" direction mentioned below is the same as the attached... Figure 1 The front and back directions shown are consistent, with the tray 3 sliding out in the forward direction and sliding in in the backward direction.
[0024] Please see Figure 1-3This embodiment discloses a trunk loading device, including a mounting base 1, a sliding frame 2, a loading tray 3, a support rod 4, and a buffer airbag assembly 5. The sliding frame 2 is slidably mounted on the mounting base 1, the loading tray 3 is rotatably mounted on the sliding frame 2, the support rod 4 is positioned between the sliding frame 2 and the loading tray 3 to drive the loading tray 3 to rotate, and the buffer airbag assembly 5 includes an elastic airbag 501 positioned between the sliding frame 2 and the loading tray 3 to provide cushioning for the rotation of the loading tray 3. It is understood that the mounting base 1 can be the vehicle body itself, or a mounting bracket independently mounted on the vehicle body, etc., and is not limited here. The loading tray 3 is used to store items. In this embodiment, the opening and closing of the loading tray 3 is controlled by manual rotation. When the loading tray 3 is opened, it is convenient for the user to retrieve items from the storage space below the loading tray 2. The support rod 4 can be selected from existing gas struts or hydraulic struts, etc., according to the load-bearing requirements, to expand the loading tray 2 to a predetermined angle. In this embodiment, two sets of gas struts are used. In this embodiment, the airbag assembly 5 is configured with two sets; however, in other embodiments, it may be configured with one or more sets. The advantage of using an elastic airbag 501 for the airbag assembly 5 is that the elastic airbag 501 has a large compression stroke, which can provide a buffering effect in the early stages of the closing process of the cargo tray 3, ensuring that the cargo tray 3 can close slowly. Furthermore, the overall vertical dimension of the elastic airbag 501 after compression is small, ensuring that the cargo tray 3 can close completely, meeting the requirement of compact trunk space arrangement. The elastic airbag 501 is preferably a rubber airbag. Of course, it is understood that after the trunk loading device is mounted on the vehicle body, the sliding frame 2 is slidably arranged along the front-to-back direction of the vehicle body.
[0025] The aforementioned trunk loading device reduces the risk of injury from the loading tray, lowers noise during use, and improves ease of use, thereby enhancing the user experience. Specifically, the sliding bracket 2 allows the loading tray 3 to slide out, improving convenience when retrieving items. Simultaneously, the airbag assembly 5, in conjunction with the support rod 4, enables the loading tray 3 to close slowly, preventing it from suddenly falling and injuring the operator, thus reducing the risk of injury. Furthermore, it prevents noise from the loading tray 3 impacting the mounting base 1, and the contact between the loading tray 3 and the elastic airbag 501 is noiseless, further improving the overall user experience. Of course, the overall structure of this trunk loading device is relatively simple, which is beneficial for cost control.
[0026] In this embodiment, the sliding frame 2 includes a sliding plate 201 arranged laterally and slidably mounted on the mounting base 1. One end of the cargo tray 3 is rotatably connected to the sliding plate 201, and the other end rests on the mounting base 1. The elastic airbag 501 is mounted on the sliding plate 201 and arranged adjacent to the rotating end of the cargo tray 3. It can be understood that "lateral" here corresponds to the width direction of the car body. "Lateral arrangement" of the sliding plate 201 means that the length direction of the sliding plate 201 is arranged laterally. In this structural design, the laterally arranged sliding plate 201 has a simple installation structure, good reliability, and occupies little space; at the same time, the sliding plate 201 can provide a mounting position for the elastic airbag 501, which is beneficial for the stable installation of the elastic airbag 501. The elastic airbag 501 is arranged near the rotating end of the tray 3, meaning it is close to the rotating mounting end of the tray 3. This way, the height of the elastic airbag 501 does not need to be designed to be too high, ensuring that it can provide a buffering effect in the early stage of the tray 3 closing process (when the closing angle is still relatively large), thus improving safety. Furthermore, the sliding plate 201 also provides a reliable mounting position for the support rod 4. In this embodiment, for example, the lower end of the support rod 4 is hinged to the top of the sliding plate 201.
[0027] In this embodiment, the buffer airbag assembly 5 further includes a return spring 502 and a connecting block 503 disposed on the sliding plate 201. The bottom opening of the elastic airbag 501 is sealed and connected to the connecting block 503. The return spring 502 is disposed inside the elastic airbag 501 and is used to lift the elastic airbag 501 when the loading tray 3 is opened. The connecting block 503 is provided with a vent hole 503a. Specifically, the connecting block 503 is a connecting plate structure and is fixedly connected to the sliding plate 201 by bolts. The vent hole 503a is used to exhaust air when the elastic airbag 501 is compressed. During design, the exhaust speed can be controlled by preset the size of the vent hole 503a, thereby controlling the buffering effect of the elastic airbag 501. Of course, it can be understood that the vent hole 503a can also serve as an intake air when the elastic airbag 501 is lifted. The elastic airbag 501 and the connecting block 503 are sealed together to ensure no air leakage at the connection point. The return spring 502 is a helical spring, with its two ends abutting against the connecting block 503 and the elastic airbag 501, respectively. In this structural design, the return spring 502 helps to improve the cushioning effect of the elastic airbag 501, resulting in good cushioning performance for the cushioning airbag assembly 5. The vent 503a ensures that the elastic airbag 501 has a large compression deformation capacity, thus saving vertical installation space. The connecting block 503 facilitates quick installation of the elastic airbag 501.
[0028] In this embodiment, the connecting block 503 is further provided with an air intake one-way valve port 503b for enhancing the air intake rate. Specifically, the structure of the air intake one-way valve port 503b includes an air intake hole provided on the connecting block 503 and an elastic lever covering the top of the air intake hole. During the rebound of the elastic airbag 501, the elastic lever deforms upward under negative pressure to open the air intake hole, realizing rapid inflation of the elastic airbag 501. Of course, in other embodiments, other one-way valve port structures can also be used. By providing the air intake one-way valve port 503b, it is beneficial to realize the rapid reset and rebound of the elastic airbag 501, which helps to ensure that it can function when the loading tray 3 is opened next time, thus ensuring reliability of use.
[0029] In this embodiment, the connecting block 503 is fixed to the bottom of the sliding plate 201, and the elastic airbag 501 extends upward through the sliding plate 201. Specifically, the connecting block 503 is fixed to the bottom of the sliding plate 201 by bolts, and the sliding plate 201 has a through hole for the elastic airbag 501 to pass through. This structural design helps to ensure the compactness of the space design, and the thickness of the connecting block 503 does not affect the closed position of the tray 3; at the same time, it helps to improve the installation stability of the elastic airbag 501.
[0030] In this embodiment, the elastic airbag 501 has a shape that is smaller at both ends and larger in the middle. Specifically, both ends of the elastic airbag 501 are frustoconical structures. By designing the elastic airbag 501 with a structure that is smaller at both ends and larger in the middle, it is beneficial to ensure the compression deformation stability of the elastic airbag 501 and to improve the cushioning effect of the elastic airbag 501.
[0031] In this embodiment, hinge seats 202 are respectively provided at both ends of the sliding plate 201 in the lateral direction, and the loading tray 3 is hinged to the two sets of hinge seats 202 respectively. An auxiliary support beam 203 arranged along the sliding direction of the sliding plate 201 is fixedly provided on the hinge seat 202. The auxiliary support beam 203 is fixedly connected to the sliding plate 201. When the loading tray 3 is in the closed state, it is placed on the auxiliary support beam 203 and the mounting base 1. More specifically, a support plate 203a extending laterally inward is provided on the auxiliary support beam 203. The support plate 203a is fixedly connected to the sliding plate 201. When the loading tray 3 is in the closed state, it is placed on the support plate 203a. The support plate 203a and the auxiliary support beam 203 adopt an integral molding structure. The support plate 203a is fixedly connected to the sliding plate 201 by screws. In this structural design, by providing hinge seats 202 at both ends of the sliding plate 201 in the lateral direction, it is beneficial to ensure the installation stability of the loading tray 3, and the installation structure is simple and reliable. The auxiliary support beam 203 effectively enhances the load-bearing capacity and durability of the cargo tray 3. It is understood that during use, the auxiliary support beam 203, support plate 203a, hinge seat 202, and sliding plate 201 slide together.
[0032] In this embodiment, the mounting base 1 includes a mounting frame 101, on which a roller shutter mechanism 6 is mounted. The rotating end of the cargo tray 3 is connected to the roller shutter pull-out end of the roller shutter mechanism 6. Specifically, the bottom frame 101 adopts a U-shaped frame structure. Slide rails are respectively provided on the left and right crossbeams of the mounting frame 101. Slider blocks are fixed to the bottom of both ends of the sliding plate 201. The sliders at both ends of the sliding plate 201 are slidably engaged with the slide rails on the corresponding sides, thereby realizing the sliding of the sliding plate 201. The left and right crossbeams of the bottom frame 101 are respectively fixed to the vehicle body (not shown in the attached figure) by bolts. The size of the bottom frame 101 can be designed to match the size of the trunk opening. By using an independent bottom frame 101, the production and assembly of the overall device and the vehicle body structure can be facilitated, improving assembly efficiency. Here, the roller blind mechanism 6 adopts the existing spring roller blind mechanism. The roller blind housing is fixed to the rear end of the bottom frame 101. Here, "rear end" refers to the rear end along the sliding direction of the tray 3. The edge of the roller blind at the pulled-out end is seamlessly connected to the rear edge of the tray 3, such as by snap-fit or adhesive. Through the roller blind mechanism 6 set on the mounting frame 101, the gap between the tray 3 and the rear crossbeam of the bottom frame 101 can be blocked after the tray 3 slides out, preventing items on the tray 3 from sliding off through the rear gap, which helps to further improve the user experience.
[0033] In this embodiment, the mounting frame 101 is provided with supporting rollers 101a. When the tray 3 is closed, the end furthest from the rotating end rests on the supporting rollers 101a. Specifically, there are two sets of supporting rollers 101a. The supporting rollers 101a help to further improve the load-bearing capacity of the tray 3 and ensure structural reliability. At the same time, since the supporting rollers 101a are rolling, they help to reduce the friction when the tray 3 slides, ensuring the smooth sliding of the tray 3.
[0034] In this embodiment, the tray 3 is provided with receiving grooves 3a corresponding to the support rods 4. The support rods 4 are stored in the receiving grooves 3a when the tray 3 is closed. Specifically, there are two sets of support rods 4, and correspondingly two sets of receiving grooves 3a. By providing receiving grooves 3a, the compactness of the space design is improved, and it is easier to ensure that the tray 3 can be laid flat when closed.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A trunk loading device, characterized in that, include: Installation foundation (1); A sliding frame (2) is mounted on a mounting base (1) and can be driven to slide. The tray (3) is rotatably mounted on the sliding frame (2); A strut (4) is positioned between the sliding frame (2) and the tray (3) to drive the tray (3) to rotate. The cushioning airbag assembly (5) includes an elastic airbag (501) disposed between the sliding frame (2) and the tray (3) to cushion the tilting of the tray (3).
2. The trunk loading device according to claim 1, characterized in that: The sliding frame (2) includes a sliding plate (201) arranged laterally and slidably mounted on the mounting base (1). One end of the cargo tray (3) is rotatably connected to the sliding plate (201), and the other end is mounted on the mounting base (1). The elastic airbag (501) is mounted on the sliding plate (201) and arranged adjacent to the rotating end of the cargo tray (3).
3. The trunk loading device according to claim 2, characterized in that: The buffer airbag assembly (5) further includes a return spring (502) and a connecting block (503) disposed on the sliding plate (201). The bottom opening of the elastic airbag (501) is sealed and connected to the connecting block (503). The return spring (502) is disposed inside the elastic airbag (501) and is used to lift the elastic airbag (501) when the cargo tray (3) is opened. The connecting block (503) is provided with a vent hole (503a).
4. The trunk loading device according to claim 3, characterized in that: The connecting block (503) is also provided with an intake one-way valve port (503b) for enhancing the intake rate.
5. The trunk loading device according to claim 3, characterized in that: The connecting block (503) is fixed to the bottom of the sliding plate (201), and the elastic airbag (501) extends upward through the sliding plate (201).
6. The trunk loading device according to claim 1, characterized in that: The elastic airbag (501) has a shape that is small at both ends and large in the middle.
7. The trunk loading device according to claim 2, characterized in that: The sliding plate (201) has hinge seats (202) at both ends in the horizontal direction. The loading tray (3) is hinged to the two sets of hinge seats (202) respectively. An auxiliary support beam (203) is fixed on the hinge seat (202) and arranged along the sliding direction of the sliding plate (201). The auxiliary support beam (203) is fixedly connected to the sliding plate (201). When the loading tray (3) is in the closed state, it is erected on the auxiliary support beam (203) and the mounting foundation (1).
8. The trunk loading device according to claim 1, characterized in that: The installation base (1) includes an installation frame (101), on which a roller shutter mechanism (6) is provided, and the rotating end of the loading tray (3) is connected to the roller shutter pull-out end of the roller shutter mechanism (6).
9. The trunk loading device according to claim 8, characterized in that: The mounting frame (101) is provided with a support roller (101a), and the end of the tray (3) away from the rotating end rests on the support roller (101a) when the tray is closed.
10. The trunk loading device according to claim 1, characterized in that: The loading tray (3) is provided with a receiving groove (3a) corresponding to the support rod (4), and the support rod (4) is stored in the receiving groove (3a) when the loading tray (3) is closed.