Lifting mechanism of a house that can be accommodated in a vehicle

Abstract

The application discloses a lifting mechanism of a vehicle-mounted house, which comprises a driving device and lifting devices, the driving device is connected with the lifting devices and drives the lifting devices to lift, and the lifting devices are arranged in multiple numbers, wherein at least one longitudinal lifting device connected with longitudinal sides of a roof and at least one transverse lifting device connected with transverse sides of the roof are included. The upper guide part of the lifting device can be arranged non-parallel to the lower guide part. By using the scheme, the unfolding and storage operation of the vehicle-mounted house is more convenient and fast, the roof can vertically lift, the roof is not easy to warp and deform during the unfolding and storage process of the vehicle-mounted house, and the stability of the vehicle-mounted house after unfolding and the ability of resisting external force interference such as lateral wind are better.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted tents, and in particular to a stowable vehicle-mounted tent. Background Art

[0002] At present, the internal space of car tents on the market is relatively small, and people cannot walk upright in the tent, resulting in a poor user experience. Increasing the internal space of the tent can improve the user experience, but tents with large internal space are difficult to fold and unfold.

[0003] In view of this, how to make a tent with a large internal space easier to fold and unfold is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a lifting mechanism that can accommodate a vehicle-mounted house. The lifting mechanism includes a driving device and a lifting device. The driving device is connected to the lifting device to drive the lifting device to rise and fall. The lifting device is provided in plurality, including at least one longitudinal lifting device connected to the longitudinal side of the roof and at least one transverse lifting device connected to the transverse side of the roof.

[0005] In one embodiment, the lifting device includes an X-shaped cross arm, an upper guide, a lower guide, an upper sliding member sliding along the upper guide, and a lower sliding member sliding along the lower guide, the upper guide is connected to the roof, the lower guide is connected to the floor of the vehicle room, the upper end of the X-shaped cross arm is connected to the upper sliding member, and the lower end of the X-shaped cross arm is connected to the lower sliding member.

[0006] In one embodiment, when the vehicle house is unfolded, the upper guide member of each lifting device is arranged parallel to its lower guide member; or, when the vehicle house is unfolded, the upper guide members of some lifting devices are arranged parallel to their lower guide members, and the upper guide members of some lifting devices are not arranged parallel to their lower guide members; or, when the vehicle house is unfolded, the upper guide member of each lifting device is not arranged parallel to its lower guide member.

[0007] In one embodiment, when the vehicle house is unfolded, the upper guide member of at least one of the longitudinal lifting devices is not arranged parallel to its lower guide member, and the upper guide member of at least one of the transverse lifting devices is not arranged parallel to its lower guide member.

[0008] In one embodiment, the upper guide member includes two upper guide parts, which respectively cooperate to guide the two upper sliding parts, and the two upper sliding parts are respectively connected to the upper ends of the two arms of the X-shaped cross arm; when the vehicle-mounted room is unfolded, the non-parallel setting of the lifting device is adopted, and its two upper guide parts form an angle β with each other, and the angle β is greater than 0° and less than 180°.

[0009] In one embodiment, the lifting device is a symmetrical structure that is symmetrical about the intersection of its X-shaped cross arms, so that when the vehicle cabin is in the unfolded state, the angle α between its two upper guide parts and its lower guide part is consistent.

[0010] In one embodiment, in the unfolded state, the longitudinal span of the X-shaped cross arm of the longitudinal lifting device is not equal to the transverse span of the X-shaped cross arm of the transverse lifting device, and the arm length of the X-shaped cross arm of the longitudinal lifting device is not equal to the arm length of the X-shaped cross arm of the transverse lifting device.

[0011] In one embodiment, at least one of the longitudinal lifting device and the transverse lifting device is provided with an elastic connecting member, wherein the elastic connecting member includes an elastic portion and a hinge portion, wherein the hinge portion is hinged to the corresponding upper sliding member, and the hinge portion is slidably connected to the corresponding support arm through the elastic portion.

[0012] In one embodiment, the driving device includes a power element and multiple drive shafts, wherein one drive shaft is connected to the power element, all drive shafts are linked through a transmission assembly, each drive shaft includes multiple drive shaft segments connected in sequence, each drive shaft segment is connected to another drive shaft segment at a floor joint, and each drive shaft segment is each threadedly connected to one of the lower sliding members.

[0013] In one embodiment, the transmission assembly includes a plurality of gears, and two gears meshing with each other are respectively provided at the ends of the two driving shafts.

[0014] The adoption of this solution makes the deployment and storage of the vehicle-mounted house more convenient and quick. Moreover, during the deployment and storage process of the vehicle-mounted house, the roof can be raised and lowered vertically and is not prone to warping and deformation. Moreover, after deployment, the vehicle-mounted house has better stability and ability to resist external interference such as side wind. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of a vehicle-mounted house with a lifting mechanism in an unfolded state;

[0016] Figure 2 for Figure 1 Schematic diagram of the lifting mechanism lowering the roof to a low position;

[0017] Figure 3 This is a schematic diagram of the vehicle room in the stowed state;

[0018] Figure 4 It is a schematic diagram of the lifting mechanism connected between the roof and the floor;

[0019] Figure 5 for Figure 4 An enlarged view of the first embodiment in part A;

[0020] Figure 6 for Figure 4 An enlarged view of the second embodiment of part A;

[0021] Figure 7 for Figure 4 An enlarged view of an embodiment of Part B;

[0022] Figure 8 for Figure 4 An enlarged view of an embodiment of Part C;

[0023] Figure 9 for Figure 8 An enlarged view of an embodiment of part D;

[0024] Figure 10 Separate views of the drive unit and lower guide;

[0025] Figure 11 Schematic diagram of motion restriction using a non-parallel setup scheme;

[0026] Figure 12 、 Figure 13 、 Figure 14 and Figure 15 is a schematic diagram of a first embodiment of an X-shaped cross arm;

[0027] Figure 16 、 Figure 17 and Figure 18 is a schematic diagram of a second embodiment of an X-shaped cross arm;

[0028] Figure 19 、 Figure 20 and Figure 21 FIG. 4 is a schematic diagram of a third embodiment of an X-shaped cross arm.

[0029] The following are the descriptions of the reference numerals:

[0030] 50 roof, 51 first roof panel, 52 second roof panel, 53 third roof panel, 54 fourth roof panel;

[0031] 60 floors;

[0032] 80 lifting mechanism;

[0033] 80a longitudinal lifting device, 80b transverse lifting device, 80c driving device;

[0034] 81X-shaped X-shaped cross arm, 81a first arm segment, 81b second arm segment, 81c third arm segment, 81d fourth arm segment, 81e first transition piece, 81f second transition piece, 81g first hinge, N1 first slider, M1 first guide groove, 81h second hinge, N2 second slider, M2 second guide groove; N3 orifice plate, N4 hollow shaft;

[0035] 82 upper guide member, 82a upper guide portion, 82b plug-in portion, 83 lower guide member, 83a lower guide portion, S-notch, 84 upper sliding member, 85 lower sliding member, 86 gear, 87 drive shaft, 87a drive shaft segment, 88 elastic connecting member, 88a hinge portion, 88b elastic portion. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] like Figure 1 When the vehicle-mounted room is unfolded, the interior space is roughly rectangular. A lifting mechanism 80 is connected between the roof 50 and the floor 60. The roof 50 includes four roof panels, namely the first roof panel 51, the second roof panel 52, the third roof panel 53, and the fourth roof panel 54. Figure 2 and Figure 3 When the vehicle room is stored, the lifting mechanism 80 is used to drive the roof 50 down to Figure 2 At this point, the roof 50, side walls and some facilities in the room are all stacked and supported on the floor 60, and can then be further detached along the seams of the roof panels and stacked together to finally achieve Figure 3 Of course, other numbers of roof panels can also be stored in a similar manner.

[0038] like Figure 4 The lifting mechanism 80 is connected between the roof 50 and the floor 60. The lifting mechanism 80 includes a driving device 80c and four lifting devices. The driving device 80c can drive the lifting device to rise and fall, thereby driving the roof 50 to rise and fall, so as to facilitate the deployment and storage of the vehicle room.

[0039] Of the four lifting devices, two are longitudinal lifting devices 80a connected to the longitudinal sides of the roof 50, and the other two are transverse lifting devices 80b connected to the transverse sides of the roof 50. In the illustrated embodiment, the longitudinal direction (i.e., the front-back direction in the figure) is considered the longitudinal direction, and the left-right direction (i.e., the left-right direction in the figure) is considered the transverse direction. When the vehicle house is deployed, the two longitudinal lifting devices 80a are located outside the longitudinal side walls of the vehicle house, and the two transverse lifting devices 80b are located outside the transverse side walls of the vehicle house.

[0040] The longitudinal and transverse sides of the roof 50 are connected to the lifting device, so that the longitudinal and transverse sides of the roof 50 can be reliably supported during the extension and retraction process, so that the roof 50 can be lifted and lowered vertically and is not easy to collapse or deform, especially when the roof 50 is at an angle in both the longitudinal and transverse directions (such as Figure 4 The roof 50 forms an angle θ in the longitudinal direction and an angle γ in the transverse direction), which has a more significant effect in preventing the roof 50 from collapsing or deforming, and can also improve the ability of the vehicle-mounted house to resist external interference such as side winds.

[0041] like Figure 4 Each longitudinal lifting device 80a and transverse lifting device 80b includes an X-shaped cross arm 81. The X-shaped cross arm 81 includes two arms that intersect each other in an X-shape and are connected together at the intersection for relative rotation. Each lifting device is preferably configured as a symmetrical structure that is vertically symmetrical about the intersection of its X-shaped cross arms 81. This facilitates motion matching and reduces the risk of motion interference.

[0042] like Figure 5 、 Figure 6 or Figure 7 The longitudinal lifting device 80a and the transverse lifting device 80b each include an upper guide member 82 and two upper sliding members 84 ( Figure 5 and Figure 6 Only one upper sliding member 84 is shown. The upper guide member 82 may be a guide rod, a guide rail, a guide sleeve, etc., and the upper sliding member 84 may be a sliding sleeve, a slider, etc. Each upper guide member 82 includes two upper guide portions 82a. The two upper sliding members 84 are respectively connected to the two upper guide portions 82a of the upper guide member 82 and can slide along the upper guide portions 82a.

[0043] The upper ends of the two arms of the X-shaped cross arm 81 are hinged to the two upper sliding members 84 respectively. Figure 5 and Figure 6 In the embodiment shown, the upper ends of the two arms of the X-shaped cross arm 81 are directly hinged to the two upper sliding members 84. Figure 7 In the illustrated embodiment, the upper ends of the two arms of the X-shaped cross arm 81 are indirectly hinged to the two upper sliding members 84 via elastic connectors 88 . The beneficial effects of the elastic connectors 88 will be described in detail later.

[0044] The two upper guide parts 82a of the upper guide member 82 are respectively connected to the two roof panels, and can be fixedly connected or hinged to the outer frame of the roof panels. If hinged, the upper guide parts 82a can rotate relative to the roof 50 during the lifting process. Figure 5 In the solution shown, a fixed connection is adopted. In this solution, the two upper guide portions 82 a are disconnected at the joints of the roof panels, thereby not affecting the stacking and storage of the roof 50 . Figure 6In the illustrated embodiment, a hinged connection is adopted. In this embodiment, the two upper guide portions 82a are connected at the joints of the roof panels by the insert portion 82b. When storing, the two upper guide portions 82a are disconnected at the joints of the roof panels by removing or sliding the insert portion 82b, thereby not affecting the stacking and storage of the roof 50.

[0045] like Figure 8 , the longitudinal lifting device 80a and the transverse lifting device 80b each include a lower guide member 83 and two lower sliding members 85 ( Figure 8 Only one lower sliding member 85 is shown in the figure. The lower guide member 83 can be a guide rod, a guide rail, a guide sleeve, etc., and the lower sliding member 85 can be a sliding sleeve, a slider, etc. Each lower guide member 83 includes two lower guide portions 83a, and the two lower sliding members 85 are respectively connected to the two lower guide portions 83a of the lower guide 83 (combined with Figure 10 Understanding), it can slide along the lower guide portion 83a, and the lower ends of the two arms of the X-shaped cross arm 81 are hinged to the two lower sliding members 85 respectively.

[0046] like Figure 9 and Figure 10 The lower guide portion 83a is connected to the floor panel 60 and can be specifically arranged on the outside of the floor panel 60 and fixedly connected to the peripheral frame of the floor panel 60. The two lower guide portions 83a are disconnected at the joint between the floor panels to prevent interference with the stacking and storage of the floor panels 60. The lower guide portion 83a of the longitudinal lifting device 80a extends in the horizontal longitudinal direction to guide the lower slider 85 of the longitudinal lifting device 80a to slide in the horizontal longitudinal direction. The lower guide portion 83a of the transverse lifting device 80b extends in the horizontal transverse direction to guide the lower slider 85 of the transverse lifting device 80b to slide in the horizontal transverse direction.

[0047] like Figure 9 and Figure 10 The driving device 80c includes a power element (not shown) and four driving shafts 87. Each driving shaft 87 includes multiple driving shaft segments 87a (two in the figure). The driving shaft segments 87a are connected to form a complete driving shaft 87 at the floor joints through structures such as sliding sleeves. The four driving shafts 87 drive four lifting devices respectively. Figure 8 The lower guide portion 83a is provided as a guide sleeve, and a slot S is provided along the axial direction on the lower guide portion 83a. Figure 9 Each drive shaft 87 passes through the two lower guide portions 83a of a lower guide member 83. External threads of different rotational directions are provided on the drive shaft 87 at positions corresponding to the two lower guide portions 83a. A lower sliding member 85 is sleeved over the lower guide portions 83a. A protrusion is provided on the lower sliding member 85. This protrusion extends through an axial notch S into the lower guide portion 83a and is hingedly connected to a threaded sleeve on the external thread of the drive shaft 87 (the external thread, protrusion, and threaded sleeve are not shown). This converts the rotational motion of the drive shaft 87 into linear sliding motion of the lower sliding member 85.

[0048] When the drive shaft 87 rotates, the two lower sliding members 85 of each lifting device slide toward or away from each other, causing the upper ends of the two arms of the X-shaped cross arm 81 to rise or fall, thereby driving the roof 50 to rise or fall; after the roof 50 is raised or lowered to the target height, the drive shaft 87 stops rotating, and the drive shaft 87 and the lower sliding member 85 rely on the self-locking thread to keep the roof 50 at the target height.

[0049] like Figure 10 The four drive shafts 87 can be linked together via a transmission assembly comprising a plurality of gears 86, which can be bevel or bevel gears. Two meshing gears 86 are positioned at the ends of two adjacent drive shafts 87. This arrangement requires only a single power element to simultaneously drive the four lifting devices. This not only simplifies the structure but also facilitates the synchronization of the four lifting devices. If the four lifting devices are not aligned, the roof 50 can easily warp or become stuck during the lifting process.

[0050] Typically, the longitudinal length and transverse width of a vehicle-mounted house are not equal. In this case, to more stably support the roof 50, the longitudinal span of the X-shaped cross arm 81 of the longitudinal lifting device 80a and the transverse span of the X-shaped cross arm of the transverse lifting device 80b can be different when the vehicle-mounted house is deployed. If the longitudinal length of the vehicle-mounted house is greater than its transverse width, the longitudinal span of the X-shaped cross arm 81 of the longitudinal lifting device 80a is greater than the transverse span of the X-shaped cross arm of the transverse lifting device 80b. Conversely, the longitudinal span of the X-shaped cross arm 81 of the longitudinal lifting device 80a is smaller than the transverse span of the X-shaped cross arm of the transverse lifting device 80b. At the same time, to facilitate storage, the support arm length of the X-shaped cross arm 81 of the transverse lifting device 80b is preferably shorter than the transverse width of the vehicle-mounted house after storage. Therefore, the support arm length of the X-shaped cross arm 81 of the transverse lifting device 80a is preferably set to be shorter than the support arm length of the X-shaped cross arm 81 of the longitudinal lifting device 80b.

[0051] However, if the longitudinal span of the X-shaped cross arm 81 of the longitudinal lifting device 80a is different from the transverse span of the X-shaped cross arm of the transverse lifting device 80b, then the transmission ratio of the longitudinal and transverse drive shafts 87 is obviously not equal to 1. In addition, if the arm length of the X-shaped cross arm 81 of the transverse lifting device 80a is different from the arm length of the X-shaped cross arm 81 of the longitudinal lifting device 80b, then during the lifting process, the lifting heights of the upper ends of the arms of the longitudinal lifting device 80a and the upper ends of the arms of the transverse lifting device 80b may be easily different, thereby easily causing the roof 50 to warp and deform during the lifting process. To avoid this problem, the above-mentioned elastic connector 88 may be provided at the upper ends of the arms of the X-shaped cross arm 81, so that the upper ends of the arms of the X-shaped cross arm 81 are indirectly hinged to the upper sliding member 84 through the elastic connector 88. Specifically, the elastic connector 88 can be provided only at the upper end of the support arm of the X-shaped cross arm 81 of the horizontal lifting device 80b (illustrated solution), or the elastic connector 88 can be provided only at the upper end of the support arm of the X-shaped cross arm 81 of the longitudinal lifting device 80a, or the elastic connector 88 can be provided at the upper ends of the support arms of the X-shaped cross arms 81 of both the longitudinal lifting device 80a and the horizontal lifting device 80b.

[0052] like Figure 7 Elastic connector 88 includes an elastic portion 88b and a hinge portion 88a. Hinged portion 88a is hingedly connected to upper sliding member 84 and is also slidably connected to the upper end of the support arm of X-shaped cross arm 81 via elastic portion 88b. Elastic portion 88b can be stretched or compressed along the length of the support arm, allowing hinge portion 88a to slide or return along the length of the support arm. This compensates for the difference in lifting height between the upper ends of the support arms of longitudinal lifting device 80a and transverse lifting device 80b, thereby preventing warping and deformation of the roof during the lifting process.

[0053] The elastic portion 88b can be implemented in a variety of ways. For example, one end of the upper guide portion 82a can be hinged to the roof 50, while the other end is connected to the roof 50 via an elastic member. This allows the upper guide portion 82a to deflect relative to the roof 50 during the lifting process, thereby compensating for the difference in height between the upper ends of the longitudinal and transverse lifting devices 80a and 80b. A method can also be employed to ensure that the amount of extension and compression of the elastic portion 88b along the length of the arm is similar during the lifting process. This means that the elastic portion 88b passes through the midpoint zero position when transitioning from the stretched state to the compressed state. Examples of such methods include unequal angles β between the longitudinal and transverse upper guide portions 82a, and / or unequal lengths between the longitudinal and transverse X-shaped cross arms 81. When the roof 50 remains within the elastically permissible deformation range during this transition from the stretched state to the compressed state, the elastic portion 88b effectively compensates for the difference in height between the upper ends of the longitudinal and transverse lifting devices 80a and 80b. In this case, the elastic portion 88b may not be provided.

[0054] Specifically, the upper guide member 82 of each lifting device can be arranged parallel to its lower guide member 83. Alternatively, the upper guide members 82 of some lifting devices are arranged parallel to their lower guide members 83, while the upper guide members 82 of some lifting devices are not arranged parallel to their lower guide members 83. Alternatively, the upper guide member 82 of each lifting device is not arranged parallel to its lower guide member 83.

[0055] Figure 5 In the illustrated embodiment, the upper guide member 82 is non-parallel to the lower guide member 83. The two upper guide portions 82a of the upper guide member 82 form an angle β with each other, and the two upper guide portions 82a form an angle α with the lower guide member 83. Preferably, the upper guide member 82 of at least one longitudinal lifting device 80a is non-parallel to its lower guide member 83, and the upper guide member 82 of at least one transverse lifting device 80b is non-parallel to its lower guide member 83. This design improves the vehicle house's ability to withstand both lateral and longitudinal winds, making the vehicle house more stable overall.

[0056] With the non-parallel arrangement, when the vehicle cabin is in the unfolded state, when the drive shaft 87 stops rotating, as shown in FIG. Figure 11 As shown:

[0057] For the longitudinal lifting device 80a, in the longitudinal vertical plane H passing through the axis of its upper guide member 82, its upper guide member 82 and upper sliding member 84 are respectively limited by the lower guide member 83 and the lower sliding member 85. In the longitudinal vertical plane H, the roof 50 cannot move in the A-A' direction; at the same time, since the two upper guide parts 82a of the upper guide member 82 of the longitudinal lifting device 80a form an angle β, the two upper sliding members 84 are respectively hinged on the two upper guide parts 82a that form the angle β with each other, and are in a locked state. Therefore, the roof 50 cannot move in the B-B' direction, and the roof 50 cannot deflect in the M direction in the longitudinal vertical plane H.

[0058] Similarly, for the transverse lifting device 80b, within a transverse vertical plane V passing through the axis of its upper guide member 82, its upper guide member 82 and upper sliding member 84 are respectively restrained by the lower guide member 83 and lower sliding member 85. Therefore, within the transverse vertical plane H, the roof 50 cannot move in the E-E' direction. Furthermore, because the two upper guide portions 82a of the upper guide member 82 of the transverse lifting device 80b form an angle β, the two upper sliding members 84 are hingedly connected to the two upper guide portions 82a at the angle β, thus being in a locked position. Therefore, the roof 50 cannot move in the D-D' direction.

[0059] Although the upper ends of the X-shaped cross arms 81 of the transverse lifting device 80b are provided with elastic connectors 88, which can slide relative to the X-shaped cross arms 81, the X-shaped cross arms 81 of the longitudinal lifting devices 80a on both sides prevent one of the two upper sliding members 84 of the transverse lifting device 80b from sliding downward in the C direction and the other from sliding upward in the C' direction (and vice versa), thus preventing the roof 50 from deflecting in the N direction.

[0060] Therefore, by adopting the above-mentioned non-parallel setting scheme, the roof 50 cannot produce horizontal movement, vertical movement, or deflection in the longitudinal vertical plane H and the transverse vertical plane V. Therefore, when raising and lowering the roof 50, no additional limiting mechanism is required, and the roof 50 can be raised and lowered vertically relative to the floor 60. Moreover, after being deployed, the vehicle-mounted house has a strong ability to resist external interference such as side wind, so it is highly stable.

[0061] Figure 6 In the illustrated embodiment, the upper guide 82 is arranged parallel to the lower guide 83, and both upper guide portions 82a of the upper guide 82 are parallel to the lower guide 83. The parallel arrangement makes motion matching easier and motion interference is less likely to occur.

[0062] Specifically, such as Figure 12 The X-shaped cross arm 81 comprises two arms that intersect to form an X-shape and are hinged together at the intersection via a hinged structure. Each arm comprises two segments. In the illustrated embodiment, one arm (hereinafter referred to as the first arm) comprises a first segment 81a and a fourth segment 81d, while the other arm (hereinafter referred to as the second arm) comprises a second segment 81b and a third segment 81c. The first segment 81a and the second segment 81b are connected to the roof 50, while the third segment 81c and the fourth segment 81d are connected to the floor 60.

[0063] The two sections of each arm can be connected together detachably, that is, the two sections of each arm can be connected together or separated. With this design, the two sections of each arm can be stacked and stored together with other components of the vehicle house (roof 50, floor 60, etc.), so that the vehicle house as a whole can be automatically Figure 2 The state shown is folded along the seam of the roof panel to Figure 3 The state shown in FIG. 8 is not required to remove the X-shaped cross arm 81 separately for storage, making the storage and deployment of the vehicle-mounted room more convenient and quick. The method of separating the two arm sections for storage and connecting them for lifting is not limited to the embodiment shown in FIG.

[0064] Specifically, the two arm sections of each arm can be directly plugged together or indirectly plugged together through a transition piece. In the illustrated embodiment, a first transition piece 81e and a second transition piece 81f are provided. The first arm section 81a and the fourth arm section 81d are plugged together through the first transition piece 81e, and the second arm section 81b and the third arm section 81c are plugged together through the second transition piece 81f.

[0065] Specifically, such as Figure 12-15 、 Figure 16-Figure 18 , the connection position of the two arm sections of each arm can be located at the intersection of the two arms. Or, Figures 19-21 The connection position of the two arm sections of each arm can also be staggered with the intersection position of the two arms.

[0066] Specifically, Figure 12-15 、 Figure 16-Figure 18 In the illustrated embodiment, the hinge structure includes a first hinge portion 81g, a second hinge portion 81h and a hinge shaft (not shown in the figure).

[0067] The first arm segment 81a of the first arm connected to the roof 50 and the third arm segment 81c of the second arm connected to the floor 60 are hinged together through a first hinge portion 81g; the second arm segment 81b of the second arm connected to the roof 50 and the fourth arm segment 81d of the first arm connected to the floor 60 are hinged together through a second hinge portion 81h. Figure 6 When the two arm segments of the first arm (the first arm segment 81a and the fourth arm segment 81d) are separated and the two arm segments of the second arm (the second arm segment 81b and the third arm segment 81c) are separated, the first arm segment 81a of the first arm connected to the roof 50 is still hinged to the third arm segment 81c of the second arm connected to the floor 60, and the fourth arm segment 81d of the first arm connected to the floor 60 is still hinged to the second arm segment 81b of the second arm connected to the roof 50. This makes it convenient to store the vehicles and can generate a pulling force on the roof 50 and the floor 60. The pulling force can help the stacked vehicles to maintain their stacked shape and not easily fall apart.

[0068] After the four arm segments are connected, the first arm segment 81a and the fourth arm segment 81d are in a straight line, and the second arm segment 81b and the third arm segment 81c are in a straight line. At the same time, the first arm segment 81a and the third arm segment 81c are hinged via the first hinge portion 81g, and the second arm segment 81b and the fourth arm segment 81d are hinged via the second hinge portion 81h. After the two arms are hinged, the hinge axis of the first hinge portion 81g, the hinge axis of the second hinge portion 81d, and the axis of the hinge shaft coincide (see Figure 15 Middle L).

[0069] Figure 15This figure illustrates a hinge structure. In this embodiment, the first hinge portion 81g includes a first guide slot M1 and a first slider N1. The first guide slot M1 is provided on the first arm segment 81a, and the first slider N1 is provided on the third arm segment 81c. The first guide slot M1 cooperates with the first slider N1 to guide the first slider N1 along a predetermined trajectory around the hinge axis of the first hinge portion 81g, thereby hingedly connecting the first arm segment 81a and the third arm segment 81c.

[0070] Similarly, the second hinge portion 81h includes a second guide slot M2 and a second slider N2. The second guide slot M2 is provided on the fourth arm segment 81d, and the second slider N2 is provided on the second arm segment 81b. The second guide slot M2 cooperates with the second slider N2 to guide the second slider N2 along a predetermined trajectory around the hinge axis of the second hinge portion 81h, thereby hingedly connecting the second arm segment 81b and the fourth arm segment 81d.

[0071] An escape space is reserved between the first guide groove M1 and the second guide groove M2 for the hinge shaft to pass through. The hinge shaft passes through the first transition piece 81e, the escape space and the second transition piece 81f in sequence, thereby hingedly connecting the two arms together.

[0072] Ports Mk may be provided at the ends of the first guide groove M1 and the second guide groove M2. When the hinge axis of the first hinge part 81g coincides with the hinge axis of the second hinge part 81d, the port of the first guide groove M1 is opposite to the port of the second guide groove M2, so that the first slider N1 can slide from the first guide groove M1 into the second guide groove M2 through the port. Similarly, the second slider N2 can slide from the second guide groove M2 into the first guide groove M1 through the port. This design can ensure that the two arms can swing relative to each other at a large angle.

[0073] The guide groove and slider can be positioned along the hinge axis to maintain a fixed relative position between them. In the illustrated scheme, the guide groove is a T-shaped groove structure, and the slider is a T-shaped block. The guide groove and slider utilize the large end of the "T" to achieve a positional fit. Of course, the method for achieving positional fit is not limited to this. For example, the guide groove can be configured as a dovetail or L-shaped groove in cross section, and the slider can be configured as a dovetail block or L-shaped block to achieve positional fit between the two.

[0074] Figure 15 The hinge structure shown has high reliability, and the concave-convex fit between the guide groove and the slider can increase the structural strength of the support arm to a certain extent.

[0075] Figure 18 Another structure of the hinge part is shown. In this embodiment, the hinge part includes two orifice plates N3 and a hollow shaft N4.

[0076] The two orifice plates N3 of the first hinged portion 81g are respectively arranged on the first arm segment 81a and the third arm segment 81c and avoid the sockets on the arm segments for inserting transition pieces. The two ends of the hollow shaft N4 are respectively inserted into or aligned with the orifices of the two orifice plates N3, thereby hingedly connecting the first arm segment 81a and the third arm segment 81c together.

[0077] The two orifice plates N3 of the second hinged portion 81h are respectively arranged on the second arm segment 81b and the fourth arm segment 81d and avoid the sockets on the arm segments for inserting transition pieces. The two ends of the hollow shaft N4 are respectively inserted into or aligned with the orifices of the two orifice plates N3, thereby hingedly connecting the first arm segment 81a and the third arm segment 81c together.

[0078] The hinge shaft passes through the hollow shaft hole of the first hinge part 81g, the first transition piece 81e, the second transition piece 81f and the hollow shaft hole of the second hinge part 81h in sequence, thereby hingedly connecting the two arms together.

[0079] Figure 15 and Figure 18 In both embodiments, if a connecting piece (such as a bolt) is provided to connect the first transition piece 81e and the second transition piece 81f, and the connecting piece passes through the hinged portions on the four arm segments of the X-shaped cross arm to articulate them, the structural stability of the X-shaped cross arm during the lifting process will be significantly enhanced.

[0080] Of course, the structure of the hinge is not limited to Figure 15 and Figure 18 In the two embodiments, any structure is acceptable as long as it can achieve the connection of the two arm segments and ensure that the two arm segments can rotate relative to each other after the connection.

[0081] The above is a detailed introduction to the lifting mechanism of the retractable vehicle-mounted house provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A lifting mechanism capable of accommodating a vehicle-mounted room, characterized in that: The lifting mechanism (80) includes a driving device (80c) and a lifting device, wherein the driving device (80c) is connected to the lifting device to drive the lifting device to move up and down, and the lifting device is provided in a plurality, including at least one longitudinal lifting device (80a) connected to the longitudinal side of the roof (50) and at least one transverse lifting device (80b) connected to the transverse side of the roof (50); The lifting device comprises an X-shaped cross arm (81), an upper guide member (82), a lower guide member (83), an upper sliding member (84) sliding along the upper guide member (82), and a lower sliding member (85) sliding along the lower guide member (83); at least one of the longitudinal lifting device (80a) and the transverse lifting device (80b) is provided with an elastic connecting member (88); The upper guide member (82) is connected to the roof (50), the lower guide member (83) is connected to the floor (60) of the vehicle room, the lower end of the support arm of the X-shaped cross arm (81) is connected to the lower sliding member (85), and the upper end of the support arm of the X-shaped cross arm (81) is connected to the upper sliding member (84) through the elastic connecting member (88), and the elastic connecting member (88) includes an elastic portion (88b) and a hinge portion (88a), the hinge portion (88a) is hinged to the corresponding upper sliding member (84), and the hinge portion (88a) is slidably connected to the corresponding support arm through the elastic portion (88b), and the elastic portion (88b) can be stretched or compressed along the length direction of the support arm, so that the hinge portion (88a) can slide or reset along the length direction of the support arm.

2. The lifting mechanism for a retractable vehicle house according to claim 1, characterized in that: When the vehicle-mounted room is in the unfolded state, the upper guide member (82) of each lifting device is arranged in parallel with its lower guide member (83); or, when the vehicle-mounted room is in the unfolded state, the upper guide members (82) of some lifting devices are arranged in parallel with their lower guide member (83), and the upper guide members (82) of some lifting devices are arranged in non-parallel with their lower guide member (83); or, when the vehicle-mounted room is in the unfolded state, the upper guide member (82) of each lifting device is arranged in non-parallel with its lower guide member (83).

3. The lifting mechanism for a retractable vehicle house according to claim 2, characterized in that: When the vehicle-mounted room is in the unfolded state, the upper guide member (82) of at least one of the longitudinal lifting devices (80a) is not arranged in parallel with its lower guide member (83), and the upper guide member (82) of at least one of the transverse lifting devices (80b) is not arranged in parallel with its lower guide member (83).

4. The lifting mechanism for a retractable vehicle house according to claim 3, characterized in that: The upper guide member (82) includes two upper guide portions (82a) which respectively cooperate with and guide the two upper sliding members (84) connected to the upper ends of the two supporting arms of the X-shaped cross arm (81); when the vehicle-mounted room is in the unfolded state, the lifting device arranged non-parallel is used, and the two upper guide portions (82a) form an angle β with each other, and the angle β is greater than 0° and less than 180°.

5. The lifting mechanism for a retractable vehicle house according to claim 4, characterized in that: The lifting device is a symmetrical structure that is vertically symmetrical about the intersection of its X-shaped cross arms (81), so that the angle α between its two upper guide parts (82a) and its lower guide part (83) is consistent when the vehicle cabin is in the unfolded state.

6. The lifting mechanism for a retractable vehicle house according to claim 5, characterized in that: In the unfolded state, the longitudinal span of the X-shaped cross arm (81) of the longitudinal lifting device (80a) is not equal to the transverse span of the X-shaped cross arm (81) of the transverse lifting device (80b), and the arm length of the X-shaped cross arm (81) of the longitudinal lifting device (80a) is not equal to the arm length of the X-shaped cross arm (81) of the transverse lifting device (80b).

7. The lifting mechanism for a foldable vehicle house according to any one of claims 2 to 6, characterized in that: The driving device (80c) includes a power element and multiple driving shafts (87), wherein one driving shaft (87) is connected to the power element, and all driving shafts (87) are linked through a transmission assembly, and each driving shaft (87) includes multiple driving shaft segments (87a) connected in sequence, and each driving shaft segment (87a) is connected to another driving shaft segment (87a) at a floor joint, and each driving shaft segment (87a) is respectively threadedly connected to one of the lower sliding members (85).

8. The lifting mechanism for a retractable vehicle house according to claim 7, characterized in that: The transmission assembly comprises a plurality of gears (86), and two gears (86) meshing with each other are respectively arranged at the ends of the two drive shafts (87).

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