Two-stage telescopic extendable vehicle-mounted multifunction module

The two-stage telescopically extendable module addresses limitations in vehicle extension systems by offering stable, adaptable, and secure space expansion, enhancing usability across different vehicles.

DE202026001035U1Active Publication Date: 2026-06-18ZHANG XINFANG

Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
ZHANG XINFANG
Filing Date
2026-02-24
Publication Date
2026-06-18

AI Technical Summary

Technical Problem

Existing vehicle extension systems are limited in their ability to significantly extend usable loading length, are not easily adaptable to different vehicle types, and lack stable, defined extension and retraction mechanisms.

Method used

A two-stage telescopically extendable module comprising a first and second pull-out module with support frames and locking devices, allowing for stable, defined extension and retraction, and optionally including an inflatable tent or fixed upper enclosure for enhanced space utilization.

🎯Benefits of technology

Enables safe, versatile, and adjustable extension of vehicle space, providing secure, defined positions and additional protection or insulation as needed, suitable for various vehicle types.

✦ Generated by Eureka AI based on patent content.

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Abstract

A two-stage telescopically extendable vehicle-mounted multifunctional module comprising a first extension module (1) and a second extension module (2), characterized in that the first extension module (1) comprises a first base (31) wherein first support boxes (5) are arranged symmetrically on both sides of the first base (31), and wherein a first extension device (6), a first support frame (7) and a first elongated opening (8) are integrated into each first support box (5), wherein the first extension device (6) is attached to the first support frame (7), and wherein the first support frame (7) extends through the first elongated opening (8) and is attached to the vehicle floor / chassis to support the first extension module (1) during extension and retraction;and that the second extension module (2) comprises a second base (32), wherein second support boxes (11) are arranged symmetrically on both sides of the second base (32), and wherein a second extension device (12), a second support frame (13), and a second elongated opening (14) are integrated into each second support box (11), wherein the second extension device (12) is attached to the second support frame (13), and wherein the second support frame (13) extends through the second elongated opening (14) and is attached to the first support box (5) to support the second extension module (2) during extension and retraction; wherein the second extension module (2) and the first extension module (1) enable two-stage extension and retraction; and wherein the first extension module (1) and the second extension module (2) can be used together or individually.
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Description

Technical field

[0001] The invention relates to a two-stage telescopically extendable vehicle-mounted multifunctional module and lies in the field of vehicle-mounted extension and expansion systems, in particular for extending the usable loading length or for enlarging the interior space of vehicles. State of the art

[0002] With trucks, the loading length is usually limited by fixed superstructures, so that extra-long goods can only be transported to a limited extent or additional superstructures are required.

[0003] In motorhomes or so-called bed cars, single-stage extension solutions are often used to increase space; however, their extension length is limited, and their expansion effect is therefore often insufficient.

[0004] Furthermore, there is a need for solutions that can be used in different types of vehicles, allow for a significantly larger extension, and are also easy to assemble and disassemble. Object of the invention

[0005] The object of the invention is to provide a vehicle-mounted extension module that enables a two-stage extension movement, is operable in several application configurations and ensures safe, defined extension and retraction positions during operation. Description of the invention

[0006] The task is solved by a multifunctional module comprising a first pull-out module (1) and a second pull-out module (2) and providing a two-stage pull-out and pull-in mechanism.

[0007] During the extension and retraction process, the loads that occur are transferred via the support frames (7, 13) and the mounting plates (3, 4) into the vehicle floor or vehicle chassis, thereby achieving a stable movement sequence.

[0008] The first extension module (1) comprises a first base (31) on both sides of which first support boxes (5) are arranged. In each first support box (5) a first extension device (6), a first support frame (7) and a first elongated opening (8) are integrated.

[0009] The first extension mechanism (6) is attached to the first support frame (7). The first support frame (7) is guided in such a way that it can move through the first elongated opening (8) during extension and retraction, and it can be attached to the vehicle floor / chassis to support the first extension module (1) during extension and retraction.

[0010] The second extension module (2) comprises a second base (32) on both sides of which second support boxes (11) are arranged. In each second support box (11) a second extension mechanism (12), a second support frame (13) and a second elongated opening (14) are integrated.

[0011] The second extension mechanism (12) is attached to the second support frame (13). The second support frame (13) is guided in such a way that it can move through the second elongated opening (14) during extension and retraction, and it can be attached to the first support box (5) to support the second extension module (2) relative to the first extension module (1).

[0012] The first extension module (1) and the second extension module (2) are designed so that they can be used together or individually to provide a defined extension length as required.

[0013] In a preferred embodiment, a first mounting plate (3) and a second mounting plate (4) are provided, wherein the first support frame (7) is attached to the vehicle floor / chassis via the first mounting plate (3) and the second support frame (13) is attached to the first support box (5) via the second mounting plate (4).

[0014] In a preferred embodiment, the extension and retraction of the first extension device (6) and the second extension device (12) is carried out by means of an electric drive or by manual operation.

[0015] In a preferred embodiment, a first locking device (22) and a second locking device (23) are provided, which positively secure defined extension and retraction positions.

[0016] For this purpose, corresponding through-openings are provided on the vehicle and on the first mounting plate (3) to accommodate the first locking device (22).

[0017] Furthermore, a combination bore (18) and a first extraction bore (19) are provided in the first base (31), and a second extraction bore (20) and a second insertion bore (21) are provided in the second base (32), the bores corresponding in position so that they align in defined positions.

[0018] The first locking device (22) and the second locking device (23) can be designed to be manually or pneumatically actuated, with their outer diameters being slightly smaller than the associated bore / opening diameters.

[0019] In another embodiment, a removable inflatable tent (24) is provided above the extension modules, which is detachably attached to the module by means of coupling elements (25, 26) and is connected to the vehicle side in a watertight manner by means of a connecting device (33).

[0020] In a further embodiment, a fixed upper enclosure is provided above the extension modules, comprising a first fixed upper enclosure (9) on the first extension module (1) and a second fixed upper enclosure (10) on the second extension module (2), wherein the second fixed upper enclosure (10) is slid into the first fixed upper enclosure (9) and has a rear door (15).

[0021] Sealing devices (16, 17) can be provided between the first fixed upper enclosure (9) and the vehicle, as well as between the first and second fixed upper enclosures (9, 10), to seal the extended interior space against environmental influences. Brief description of the drawings Fig. Figure 1 shows a perspective view of the extended multifunction module. Fig. Figure 2 shows the fully extended state (two-stage). Fig. Figure 3 shows an exploded view of the multifunction module. Fig. Figure 4 shows the internal structure of a first support box. Fig. Figure 5 shows the internal structure of a second support box. Fig. Figure 6 shows the locking mechanism in the fully extended position. Fig. Figure 7 shows the locking mechanism in the fully retracted position. Fig. Figure 8 shows an application according to embodiment 1 in the fully retracted or unextended state. Fig. Figure 9 shows embodiment 1 in the fully extended state. Fig. Figure 10 shows embodiment 1 with a single-leaf door in closed and open positions. Fig. Figure 11 shows embodiment 2 with an inflatable tent. Fig. Figure 12 shows embodiment 2 with a positioning of a second coupling element. Fig. Figure 13 shows embodiment 2 with a mounted inflatable tent. Fig. Figure 14 shows embodiment 2 on a motorhome in the extended state. Fig. Figure 15 shows embodiment 3 with a fixed upper enclosure and sealing devices. Fig. Figure 16 shows embodiment 3 in exploded view. Fig. Figure 17 shows embodiment 3 as a partial section in the retracted state. Fig. Figure 18 shows embodiment 3 on a motorhome in the fully extended state. Fig. Figure 19 shows embodiment 4 with a detachable box body. Fig. Figure 20 shows embodiment 4 with multifunction module on the box body. Fig. Figure 21 shows embodiment 4 as a partial section in the retracted state. Fig. Figure 22 shows embodiment 4 in the fully extended state from the box body. Embodiments of the invention

[0022] The following sections explain various embodiments in more detail with reference to the figures. These embodiments serve for illustrative purposes and do not limit the scope of protection.

[0023] As in Fig. 1, Fig. 2, Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the multifunction module comprises the first pull-out module (1), the second pull-out module (2), the first mounting plate (3) and the second mounting plate (4).

[0024] The first extension module (1) comprises the first base (31) and two first support boxes (5) which are arranged on both sides.

[0025] The first support boxes (5) include the first pull-out device (6), the first support frame (7) and the first elongated opening (8).

[0026] The first support frame (7) is designed so that it is guided through the first elongated opening (8) during the extension process and bears the load of the first extension module (1).

[0027] The first support frame (7) is attached to the vehicle floor or vehicle chassis via the first mounting plate (3), so that the first extension module (1) can be extended and retracted in the longitudinal direction of the vehicle.

[0028] The second extension module (2) comprises the second base (32) and two second support boxes (11) arranged on both sides.

[0029] The second support boxes (11) include the second pull-out device (12), the second support frame (13) and the second elongated opening (14).

[0030] The second support frame (13) is designed so that it is guided through the second elongated opening (14) during the extension process and bears the load of the second extension module (2).

[0031] The second support frame (13) is attached to the first support box (5) via the second mounting plate (4), so that the second extension module (2) can be extended and retracted relative to the first extension module (1).

[0032] The first extension device (6) and the second extension device (12) can be electrically driven or extended and retracted by manual operation.

[0033] To secure defined positions, the first locking device (22) and the second locking device (23) are provided. The first locking device (22) is located on the vehicle floor and the second locking device (23) on the second base (32).

[0034] Corresponding through-holes are provided on the vehicle and on the first mounting plate (3). The first base (31) has the combination bore (18) and the first extraction bore (19). The second base (32) has the second extraction bore (20) and the second insertion bore (21).

[0035] In an exit / retraction locking mechanism, the combination of through openings (vehicle / first mounting plate) aligns with the combination bore (18) and the second retraction bore (21), so that the first locking device (22) can penetrate these openings and secure the retraction position.

[0036] To remove the unit, the locking devices are released by removing the first locking device (22) from the second insertion hole (21), the combination hole (18) and the through-holes (vehicle / first mounting plate) and by releasing any additional locks between the first extraction hole (19) and the second extraction hole (20).

[0037] Then the first pull-out module (1) and the second pull-out module (2) are fully extended.

[0038] In the fully extended state, the first extension module (1) is locked to the vehicle by guiding the first locking device (22) from below through the through-openings (vehicle / first mounting plate) and further through the first extension bore (19).

[0039] Furthermore, the second extension module (2) is locked to the first extension module (1) by guiding the second locking device (23) from above through the second extension bore (20) and further through the combination bore (18).

[0040] For retraction, the second locking device (23) is removed from the combination bore (18) and the second extraction bore (20), and the first locking device (22) is released from the first extraction bore (19) and the through-holes; after complete retraction, the retraction position is secured again by inserting the first locking device (22) through the through-holes as well as through the combination bore (18) and the second extraction bore (21), whereby the second locking device (23) can additionally be guided through the second extraction bore (20) and the first extraction bore (19) for securing. Example 1: Direct application on the truck (Figs. 8 to 10)

[0041] In one version, the multi-function module is mounted directly on the vehicle and used without additional housing to extend the loading length.

[0042] At the rear end of the second extension module (2) a single-leaf door (30) is provided, which prevents cargo from falling out during transport and protects the module when retracted.

[0043] If required, the extension module(s) are pulled out and locked, thereby increasing the usable loading length.

[0044] The installation is space-saving, and the module can be removed when not in use or remain permanently on the vehicle. Example 2: Detachable inflatable tent (Figs. 11 to 14)

[0045] In one embodiment, a detachable inflatable tent (24) is arranged above the extended extension modules.

[0046] Second coupling elements (26) are provided on the carrying cases (5, 11); first coupling elements (25) are provided on the lower edge of the tent (24), which can be detachably connected to the second coupling elements (26).

[0047] The tent (24) has a connection device (33) on the vehicle side, via which a connection to the vehicle is established, the connection device (33) ensuring a waterproof seal.

[0048] After extending and locking the extension modules, the tent (24) can be assembled to create a usable space protected from the environment.

[0049] Before setting off, the tent (24) can be removed by venting or vacuuming and stored compactly. In addition, the inflatable tent (24) features a quick setup time, high strength, and a small pack size, and offers thermal insulation and protection. Example 3: Fixed upper enclosure (Figs. 15 to 18)

[0050] In one embodiment, a fixed upper enclosure is provided, consisting of the first fixed upper enclosure (9) on the first extension module (1) and the second fixed upper enclosure (10) on the second extension module (2).

[0051] The fixed upper enclosures (9, 10) have identical shapes, with the second fixed upper enclosure (10) being slid into the first fixed upper enclosure (9). The fixed upper enclosures (9, 10) can be constructed as welded metal structures and may have transparent windows as well as heat-insulating materials on the side surfaces and top.

[0052] The second fixed upper enclosure (10) has a rear door (15).

[0053] The first sealing device (16) is provided between the first fixed upper housing (9) and the vehicle, and the second sealing device (17) is provided between the first and the second fixed upper housing (9, 10).

[0054] When stationary, the extension modules can be pulled out and locked together with the housing to enlarge the interior space.

[0055] During driving, the extension modules and housing can be fully retracted back into the vehicle interior. Example 4: Detachable box body (Figs. 19 to 22)

[0056] In one embodiment a removable box body (27) is provided, comprising a body opening (34), a body base plate (28) and a connecting plate (29).

[0057] The box body (27) can be detachably attached to the vehicle via the base plate (28) and the connecting plate (29), its shape being adapted to the respective vehicle.

[0058] The multifunctional module is arranged via the first mounting plate (3) in the area of ​​the superstructure opening (34) and connected to the superstructure base plate (28), so that the extended space is connected to the interior of the box superstructure (27).

[0059] The first fixed upper enclosure (9) and the second fixed upper enclosure (10) are adapted to the geometry of the superstructure opening (34) so ​​that a close fit to the opening is made possible.

[0060] When stationary, the interior space of the box body (27) can be enlarged by extending and locking the extension modules.

[0061] In a preferred embodiment, the load of the second extension module (2) is introduced via the second support box (11) into the second extension device (12) and transferred to the second support frame (13).

[0062] The second support frame (13) introduces the load into the first extension module (1), which transfers the load via the first support box (5) and the first extension device (6) to the first support frame (7).

[0063] The first support frame (7) transfers the total load into the vehicle floor, thus enabling a stable extension process.

[0064] The described features can be implemented individually or in a technically meaningful combination, provided this is covered by the disclosure content. Reference symbol list 1 first extract module 2 second extract module 3 first mounting plate 4 second mounting plate 5 first carrying case 6 first pull-out device 7 first support frame 8 first elongated opening 9 first fixed upper enclosure 10 second fixed upper enclosure 11 second carrying case 12 second pull-out device 13 second support frame 14 second elongated opening 15 Rear door 16 first sealing device 17 second sealing device 18 Combination bore 19 first extraction hole 20 second extraction hole 21 second intake bore 22 first locking device 23 second locking device 24 inflatable tent 25 first coupling element 26 second coupling element 27 detachable box body 28 Base plate 29 Connecting plate 30 single-leaf doors 31 first base 32 second base 33 Connection device 34 Opening

Claims

A two-stage telescopically extendable vehicle-mounted multifunctional module comprising a first extension module (1) and a second extension module (2), characterized in that the first extension module (1) comprises a first base (31) wherein first support boxes (5) are arranged symmetrically on both sides of the first base (31), and wherein a first extension device (6), a first support frame (7) and a first elongated opening (8) are integrated into each first support box (5), wherein the first extension device (6) is attached to the first support frame (7), and wherein the first support frame (7) extends through the first elongated opening (8) and is attached to the vehicle floor / chassis to support the first extension module (1) during extension and retraction;and that the second extension module (2) comprises a second base (32), wherein second support boxes (11) are arranged symmetrically on both sides of the second base (32), and wherein a second extension device (12), a second support frame (13), and a second elongated opening (14) are integrated into each second support box (11), wherein the second extension device (12) is attached to the second support frame (13), and wherein the second support frame (13) extends through the second elongated opening (14) and is attached to the first support box (5) to support the second extension module (2) during extension and retraction; wherein the second extension module (2) and the first extension module (1) enable two-stage extension and retraction; and wherein the first extension module (1) and the second extension module (2) can be used together or individually. Multifunctional module according to claim 1, characterized in that a first mounting plate (3) and a second mounting plate (4) are provided, wherein the first support frame (7) is attached to the vehicle floor / chassis via the first mounting plate (3), and wherein the second support frame (13) is attached to the first support box (5) via the second mounting plate (4). Multifunctional module according to claim 2, characterized in that the extension and retraction of the first extension device (6) and the second extension device (12) is electrically driven or effected by manual operation. Multifunctional module according to claim 3, characterized in that a first locking device (22) and a second locking device (23) are provided, wherein the first locking device (22) is attached to the vehicle floor and the second locking device (23) is arranged on the second base (32); wherein corresponding through-holes are provided on the vehicle and on the first mounting plate (3) which are associated with the first locking device (22); wherein a combination bore (18) and a first extraction bore (19) are provided in the first base (31); wherein a second extraction bore (20) and a second insertion bore (21) are provided in the second base (32); wherein the combination bore (18), the first extraction bore (19), the second extraction bore (20) and the second insertion bore (21) have bore diameters of similar size and correspond to each other positionally;wherein the outer diameters of the first locking device (22) and the second locking device (23) are each slightly smaller than the diameters of the aforementioned bores and the corresponding through-openings on the vehicle and on the first mounting plate (3); and wherein the first locking device (22) and the second locking device (23) are designed to be manually or pneumatically actuated. Multifunctional module according to claim 4, characterized in that a detachable inflatable tent (24) is provided, wherein, after the first extension module (1) and the second extension module (2) have been extended and locked, second coupling elements (26) are provided on the first support box (5) and on the second support box (11), and wherein first coupling elements (25) are provided on a lower edge of the inflatable tent (24) which can be detachably connected to the second coupling elements (26), so that the inflatable tent (24) can be detachably mounted above the first and second extension modules (1, 2); wherein the inflatable tent (24) has a connecting device (33) on a vehicle-side edge by means of which the inflatable tent (24) can be connected to the vehicle, and wherein the connecting device (33) ensures a watertight seal between the inflatable tent (24) and the vehicle. Multifunctional module according to claim 4, characterized in that the first pull-out module (1) comprises a first fixed upper housing (9) which is fixedly connected to the first support box (5), and that the second pull-out module (2) comprises a second fixed upper housing (10) which is fixedly connected to the second support box (11), wherein the second fixed upper housing (10) has a rear door (15); and wherein the first fixed upper housing (9) and the second fixed upper housing (10) are of the same design and the second fixed upper housing (10) is slidable into the first fixed upper housing (9). Multifunctional module according to claim 6, characterized in that a first sealing device (16) is provided between the first fixed upper housing (9) and the vehicle, and that a second sealing device (17) is provided between the first fixed upper housing (9) and the second fixed upper housing (10). Multifunctional module according to claim 7, characterized in that a removable box body (27) is provided on the vehicle, wherein the box body (27) comprises a body opening (34), a body base plate (28) and a connecting plate (29), and wherein the box body (27) can be detachably attached to the vehicle via the body base plate (28) and the connecting plate (29) and is adapted in its shape to the vehicle; wherein the multifunctional module is arranged in the area of ​​the body opening (34) via the first mounting plate (3) and is connected to the body base plate (28); and wherein the first fixed upper enclosure (9) and the second fixed upper enclosure (10) are adapted to the shape of the body opening (34). Multifunctional module according to claim 1, characterized in that the second extension module (2) transfers a weight load via the second support box (11) to the second extension device (12), which transfers the weight load to the second support frame (13), wherein the second support frame (13) transfers the weight load to the first extension module (1), and wherein the first extension module (1) transfers the weight load via the first support box (5) to the first extension device (6), which transfers the weight load to the first support frame (7), wherein the first support frame (7) transfers the entire weight load to the vehicle floor.