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

Abstract

The application provides a lifting mechanism of a stowable vehicle house, which comprises a first lifting device for lifting a roof and a second lifting device for rotating a side wall relative to a floor with the lifting of the roof; the first lifting device and the second lifting device are arranged on a longitudinal side of the stowable vehicle house, on a transverse side of the stowable vehicle house, or on the longitudinal side or the transverse side; the second lifting device comprises a first sliding block and a first connecting rod; the first sliding block is slidably connected to a corresponding side wall of the stowable vehicle house and can slide along the height direction of the corresponding side wall; the first supporting point of the first connecting rod is hinged to the first sliding block and the hinge shaft is parallel to the hinge shaft of the corresponding side wall and the floor; and the second supporting point of the first connecting rod is hinged to the roof of the stowable vehicle house and the hinge shaft is parallel to the hinge shaft of the corresponding side wall and the floor. By using the scheme, the unfolding and stowing operations of the vehicle house are more convenient and fast, and the roof can be vertically lifted and is not easy to be warped and deformed during the unfolding and stowing of the vehicle house.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle-mounted tents, in particular to a lifting mechanism of a vehicle-mounted house. BACKGROUND

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

[0003] Therefore, how to make the tent with a large internal space easier to fold and unfold is a technical problem to be solved by those skilled in the art. SUMMARY

[0004] To solve the above technical problems, the present application provides a lifting mechanism of a vehicle-mounted house, which comprises a first lifting device and a second lifting device. One of the first lifting device and the second lifting device is arranged on the longitudinal side of the vehicle-mounted house, and the other is arranged on the transverse side of the vehicle-mounted house, or both are arranged on the longitudinal side or the transverse side of the vehicle-mounted house. The first lifting device is connected between the roof and the floor of the vehicle-mounted house and is used to lift the roof. The second lifting device is used to rotate the side wall of the vehicle-mounted house relative to the floor with the lifting of the roof. The second lifting device comprises a first sliding block and a first connecting rod. The first sliding block is slidably connected to the corresponding side wall of the vehicle-mounted house and can slide along the height direction of the corresponding side wall. The first branch point of the first connecting rod is hinged to the first sliding block, and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor. The second branch point of the first connecting rod is hinged to the roof of the vehicle-mounted house, and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor.

[0005] In one embodiment of the lifting mechanism of the vehicle-mounted house, one first lifting device is arranged on each of the two longitudinal sides or the two transverse sides of the vehicle-mounted house, and two second lifting devices are arranged on each of the other two sides of the vehicle-mounted house. The two second lifting devices on the same side are respectively connected to the two ends of the length direction of the side wall.

[0006] In one embodiment of the lifting mechanism of the vehicle-mounted house, the second lifting device comprises a stop block. When the first connecting rod is stored in a state parallel to the floor, the second branch point of the first connecting rod is located outside the first branch point of the first connecting rod. The first branch point of the first connecting rod is located inside the hinge axis of the side wall and the floor connected thereto. The stop block is located between the first branch point of the first connecting rod and the hinge axis of the side wall and the floor connected thereto.

[0007] An embodiment of the lifting mechanism of the stowable vehicle house, the second lifting device comprises a second slider and a second connecting rod, the second slider is slidably connected to the corresponding side wall and can slide along the height direction of the corresponding side wall, the first supporting point of the second connecting rod is hinged with the second slider and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor, and the second supporting point of the second connecting rod is hinged with the third supporting point of the first connecting rod and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor; when the first connecting rod and the second connecting rod are stored in a state parallel to the floor, the third supporting point of the first connecting rod is located inside the first supporting point of the first connecting rod, and the first supporting point of the second connecting rod is located outside the first supporting point of the first connecting rod.

[0008] An embodiment of the lifting mechanism of the stowable vehicle house, the second lifting device comprises a spring, the spring is connected between the first connecting rod and the second connecting rod, and under the elastic force of the spring, the included angle of the first connecting rod and the second connecting rod tends to increase, and the included angle of the first connecting rod and the side wall connected thereto tends to decrease.

[0009] An embodiment of the lifting mechanism of the stowable vehicle house, the second lifting device comprises a limiting piece, the limiting piece is arranged on the first connecting rod, the second connecting rod or the corresponding side wall, when the included angle between the first connecting rod and the second connecting rod reaches 180°, the first connecting rod, the second connecting rod or the corresponding side wall abuts against the limiting piece, so as to prevent the included angle between the first connecting rod and the second connecting rod from continuing to increase and prevent the corresponding side wall from continuing to overturn outwardly from the vertical state.

[0010] An embodiment of the lifting mechanism of the stowable vehicle house, the first lifting device comprises a cross arm, an upper guide, a lower guide, an upper sliding piece sliding along the upper guide and a lower sliding piece sliding along the lower guide, the upper guide is connected to the roof of the stowable vehicle house, the lower guide is connected to the floor of the stowable vehicle house, the upper end of the cross arm is connected to the upper sliding piece, and the lower end of the cross arm is connected to the lower sliding piece.

[0011] An embodiment of the lifting mechanism of the stowable vehicle house, the X-shaped cross arm comprises two branch arms, the two branch arms are crossed with each other and hinged at the crossing position through a hinge structure, each branch arm comprises two arm segments, one arm segment is connected to the roof and the other arm segment is connected to the floor, and the two arm segments are detachably connected together.

[0012] An embodiment of the lifting mechanism of the stowable vehicle house, the two arm segments of the branch arm are inserted together through a transition piece.

[0013] An embodiment of the lifting mechanism of the storable vehicle house, the upper guide of the first lifting device comprises two upper guide parts for guiding two upper sliding parts connected with the upper ends of two branch arms of the cross arm, and the two upper guide parts of the upper guide are parallel or not parallel to the lower guide in the unfolded state of the vehicle house.

[0014] The present application makes the unfolding and storage of the storable vehicle house more convenient and fast, and the roof can be vertically lifted without being easily deformed during the unfolding and storage of the vehicle house, and the storable vehicle house has better stability and resistance to external force interference such as lateral wind after being unfolded. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a perspective view of an embodiment of the storable vehicle house provided with the lifting mechanism of the present application in the unfolded state;

[0016] Figures 2-4 FIG. 2 is a perspective view of the storable vehicle house shown in FIG. 1 in the storage state; Figure 1

[0017] Figure 5 Figure 6 FIG. 5 is a partial structure view of the upper part of two embodiments of the first lifting device, respectively;

[0018] Figure 7 FIG. 6 is a partial structure view of the lower part of an embodiment of the first lifting device;

[0019] Figure 8 FIG. 7 is a schematic view of an embodiment of the cross arm of the first lifting device;

[0020] Figure 9 FIG. 8 is a schematic view of the second lifting device connected with the lateral side wall;

[0021] Figure 10 FIG. 9 is an exploded view of the connection position of the first connecting rod, the second connecting rod and the side wall;

[0022] Figure 11 FIG. 10 is a state view of the first connecting rod, the second connecting rod and the cross arm in the storage state;

[0023] Figures 12-14 FIG. 11 is a schematic view of the vehicle house unfolded to different degrees, respectively;

[0024] Figure 15 FIG. 12 is a state view when the included angle between the first connecting rod and the second connecting rod reaches 180°.

[0025] The reference signs are explained as follows:

[0026] 10 lateral side wall, 11 inner plate block of lateral side wall, 12 outer plate block of lateral side wall;

[0027] ​​20 longitudinal side wall, 21 inner panel of longitudinal side wall, 22 outer panel of longitudinal side wall;

[0028] 30 roof, 31 first roof panel, 32 second roof panel, 33 third roof panel, 34 fourth roof panel;

[0029] 40 floor, 41 first floor panel, 42 first floor panel, 43 first floor panel, 44 first floor panel;

[0030] 50 lifting mechanism;

[0031] 51 first lifting device, 511 cross arm, 511a first arm segment, 511b second arm segment, 511c third arm segment, 511d fourth arm segment, 511e first transition piece, 511f second transition piece, 512 upper guide, 512a upper guide portion, 513 upper sliding piece, 514 lower guide, 514a lower guide portion, 515 lower sliding piece;

[0032] 52 second lifting device, 521 first connecting rod, 522 second connecting rod, 523 spring, 524 stop block, 525 limiting piece. DETAILED DESCRIPTION

[0033] In order to make the person skilled in the art better understand the technical solutions of the present application, the technical solutions of the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0034] As Figure 1 , the accommodation vehicle house (hereinafter referred to as vehicle house) in the unfolded state, the space in the house is roughly rectangular. The vehicle house has two oppositely arranged transverse side walls 10 (the length direction of the transverse side wall 10 is along the transverse direction) and two oppositely arranged longitudinal side walls 20 (the length direction of the longitudinal side wall 20 is along the longitudinal direction), also has a roof 30, a floor 40, a lifting mechanism 50, etc., the bottom of the floor 40 is provided with a support for supporting the vehicle house from the ground.

[0035] The lateral side wall of the vehicle house is constructed or spliced by one or more lateral side wall panels. In the figure, the lateral side wall is spliced by four lateral side wall panels, two lateral side wall inner panels 11 are arranged in sequence along the lateral direction and connected by a hinge pin at the joint, and two lateral side wall outer panels 12 are arranged in sequence along the lateral direction and connected by a hinge pin at the joint. The two lateral side wall inner panels 11 (or the lateral side wall outer panels 12) are hinged to the floor 40, and the hinge shaft is L1. The switching between the vertical state (perpendicular to the floor) and the horizontal state (parallel to the floor) is realized by rotating around the hinge shaft L1. The two lateral side wall outer panels 12 are slidably installed outside the two lateral side wall inner panels 11 and can slide along the height direction of the lateral side wall inner panels 11. The lateral side wall can also have a structure with only one layer of panels, i.e., only the panel 11 or only the panel 12.

[0036] Similarly, the longitudinal side wall 20 of the vehicle house is constructed or spliced by one or more longitudinal side wall panels. In the figure, the longitudinal side wall is spliced by four longitudinal side wall panels, two longitudinal side wall inner panels 21 are arranged in sequence along the longitudinal direction and connected by a hinge pin at the joint, and two longitudinal side wall outer panels 22 are arranged in sequence along the longitudinal direction and connected by a hinge pin at the joint. The two longitudinal side wall inner panels 21 (or the longitudinal side wall outer panels 22) are hinged to the floor 40, and the hinge shaft is L2. The switching between the vertical state (perpendicular to the floor) and the horizontal state (parallel to the floor) is realized by rotating around the hinge shaft L2. The two longitudinal side wall outer panels 22 are slidably installed outside the two longitudinal side wall inner panels 21 and can slide along the height direction of the longitudinal side wall inner panels 21. Similarly, the longitudinal side wall can also have a structure with only one layer of panels, i.e., only the panel 21 or only the panel 22.

[0037] With the above arrangement, the user can freely adjust the height of the lateral side wall 10 and the longitudinal side wall 20, so that the top side of the lateral side wall 10 and the longitudinal side wall 20 can be the same height as the roof, at which time the vehicle house is in a closed state. Alternatively, as shown in the figure, the lateral side wall 10 and the longitudinal side wall 20 can be spaced apart from the roof by a certain distance, at which time the vehicle house is in a balcony state, so that it can be smoothly ventilated and the user can have a panoramic view inside the house. Figure 1

[0038] The roof 30 is spliced by multiple roof panels. In the figure, the roof is spliced by a first roof panel 31, a second roof panel 32, a third roof panel 33, and a fourth roof panel 34, forming a roof joint therebetween. The floor 40 is spliced by multiple floor panels. In the figure, the floor 40 is spliced by a first floor panel 41, a second floor panel 42, a third floor panel 43, and a fourth floor panel 44, forming a floor joint therebetween.

[0039] ​The lifting mechanism 50 comprises a first lifting device 51 and a second lifting device 52. The first lifting device 51 is connected between the roof 30 and the floor 40, and is used to lift the roof. The second lifting device is connected between the roof 30 and the side wall (which can be the lateral side wall 10 or the longitudinal side wall 20) of the vehicle house, and is used to enable the side wall of the vehicle house to rotate relative to the floor with the lifting of the roof, so as to simultaneously realize the unfolding and folding of the lateral side wall 10 or the longitudinal side wall 20 while the roof is lifted, and to conversely help the stability of lifting the roof while the lateral side wall 10 or the longitudinal side wall 20 is unfolded or folded.

[0040] The first lifting device 51 and the second lifting device 52 can be arranged on the longitudinal side of the vehicle house, or can be arranged on the lateral side of the vehicle house, or one can be arranged on the longitudinal side of the vehicle house and the other can be arranged on the lateral side of the vehicle house. In the drawings, the first lifting device 51 is arranged on the longitudinal side of the vehicle house, and the second lifting device 52 is arranged on the lateral side of the vehicle house and connected with the lateral side wall 10. Of course, the arrangement can be reversed. For the convenience of understanding, the second lifting device 52 connected with the lateral side wall 10 is taken as an example for description below.

[0041] The number of the first lifting device 51 can be one or more, and the number of the second lifting device 52 can be one or more. In the drawings, the vehicle house is provided with two first lifting devices 51, and the two first lifting devices 51 are arranged on the two longitudinal sides of the vehicle house, respectively. In the drawings, the vehicle house is provided with four second lifting devices 52, of which two second lifting devices 52 are arranged on one lateral side of the vehicle house and connected with the two ends of the length direction of the lateral side wall 10 on the side, respectively, and the other two second lifting devices 52 are arranged on the other lateral side of the vehicle house and connected with the two ends of the length direction of the lateral side wall 10 on the side, respectively, so that the two lateral side walls of the vehicle house can rotate relative to the floor about the respective hinge axes L1 with the lifting of the roof.

[0042] During the unfolding of the vehicle house, the first lifting device 51 lifts the roof to a position (such as shown in FIG. 2) spaced apart from the floor by a certain distance. Figure 1 Figure 9 During the lifting of the roof, the two lateral side walls rotate outward relative to the floor about the respective hinge axes L1, and gradually rotate from the horizontal state to the vertical state.

[0043] During the folding of the vehicle house, the first lifting device 51 lowers the roof to a position (such as shown in FIG. 4) in contact with the floor. Figure 2 During the lowering of the roof, the two lateral side walls 10 rotate inward relative to the floor about the respective hinge axes L1, and gradually rotate from the vertical state to the horizontal state, and are laid on the floor when rotated to the horizontal state. Then the floor plates are separated from each other along the floor joints, and the roof plates are separated from each other along the roof joints. After the separation, the roof plates are also laid on the floor (such as shown in FIG. 5). Figure 3 ​). Then the floor panels are stacked one on top of another by means of displacement folding or the like (as shown in Figure 4 ) and the structure laid on the floor panels.

[0044] The structure of the first lifting device 51 and the second lifting device 52 will be described in detail as follows:

[0045] First lifting device 51

[0046] As shown in Figure 1 , the first lifting device 51 comprises a cross arm 511, which comprises two branches that are crossed to form an X shape and are rotatably connected together at the crossing point. Preferably, the first lifting device 51 is arranged in a symmetrical structure about the crossing point of the cross arm, so that the movement is easier to match and is less likely to interfere.

[0047] As shown in Figure 5 , the first lifting device 51 comprises an upper guide 512 and two upper sliding members 513 (only one upper sliding member 513 is shown in Figure 5 ). The upper guide 512 can be a guide rod, a guide rail, a guide sleeve, etc., and the upper sliding member 513 can be a sliding sleeve, a sliding block, etc. The upper ends of the two branches of the cross arm 511 are hingedly connected to the two upper sliding members 513, respectively. Each upper guide 512 comprises two upper guide portions 512a, and the two upper sliding members 513 are connected to the two upper guide portions 512a of the upper guide 512, respectively, and can slide along the corresponding upper guide portions 512a, respectively. The two upper guide portions 512a of the upper guide 512 are connected to the two roof panels, respectively, and can be fixedly connected to or hingedly connected to the peripheral frames of the roof panels. In the hinged connection, the upper guide portions 512a can rotate relative to the roof during lifting. Figure 5 In the scheme shown, the two upper guide portions 512a are fixedly connected, and in this scheme, the two upper guide portions 512a of the upper guide 512 are disconnected at the joint of the roof panel, so as not to affect the stacking of the roof. In this scheme, the two upper guide portions 512a of the upper guide 512 are not parallel to the lower guide 514, and the two upper guide portions 512a of the upper guide 512 form an included angle β with each other, and the two upper guide portions 512a of the upper guide 512 form an included angle α with the lower guide. Figure 6 In the scheme shown, the two upper guide portions 512a are hingedly connected, and in this scheme, the two upper guide portions 512a are connected by a sleeve portion 512b at the joint of the roof panel. During stacking, the sleeve portion 512b is removed or slid to disconnect the two upper guide portions 512a at the joint of the roof panel, so as not to affect the stacking of the roof. In this scheme, the two upper guide portions 512a of the upper guide 512 are parallel to the lower guide 514.

[0048] As shown in Figure 7The first lifting device 51 includes a lower guide member 514 and two lower sliding members 515. Figure 7 Only one lower sliding member 515 is shown in the diagram. The lower guide member 514 can be a guide rod, guide rail, guide sleeve, etc., and the lower sliding member 515 can be a sliding sleeve, slider, etc. Each lower guide member 514 includes two lower guide portions 513a. The two lower sliding members 515 are respectively connected to the two lower guide portions 514a of the lower guide member 514 and can slide along the corresponding lower guide portions 514a. The lower ends of the two arms of the cross arm 511 are respectively hinged to the two lower sliding members 515. The lower guide portions 514a are connected to the floor 40, specifically, they can be fixedly connected to the outer frame of the floor 40. The two lower guide portions 514a are disconnected at the joint of the floor panels to avoid affecting the stacking and storage of the floor 40.

[0049] like Figure 8 Each arm of the cross arm 511 comprises two arm segments. In the illustrated scheme, one arm (hereinafter referred to as the first arm) includes a first arm segment 511a and a fourth arm segment 511d, and the other arm (hereinafter referred to as the second arm) includes a second arm segment 511b and a third arm segment 511c. The first arm segment 511a and the second arm segment 511b are connected to the roof 30, and the third arm segment 511c and the fourth arm segment 511d are connected to the floor 40.

[0050] The two sections of each support arm can be connected separately, meaning that the two sections of each support arm can be connected together or separated. With this design, the two sections of each support arm can be stacked and stored together with other components of the vehicle-mounted house (roof 30, floor 40, etc.) without having to disassemble the cross arm 511 separately for storage, making the storage and deployment of the vehicle-mounted house more convenient and faster.

[0051] Specifically, the two sections of each outrigger can be directly connected together, or they can be indirectly connected together through a transition piece. Figure 8 In the scheme shown, a first transition member 511e and a second transition member 511f are provided. The first arm segment 511a and the fourth arm segment 511d are connected together through the first transition member 511e, and the second arm segment 511b and the third arm segment 511c are connected together through the second transition member 511f.

[0052] Second lifting device 52

[0053] like Figure 9 and Figure 10The second lifting device 52 includes a first slider (not visible in the figure) and a first connecting rod 521. The first slider is slidably connected to a side wall (the following description uses the transverse side wall 10 as an example; in actual implementation, it can also be connected to the longitudinal side wall 20), specifically, it can be connected to a groove in the outer edge of the transverse side wall 10. The first slider can slide along the height direction of the transverse side wall 10.

[0054] The first fulcrum A1 of the first link 521 is hinged to the first slider and the hinge axis L3 is parallel to the hinge axis L1 of the horizontal side wall and the floor of the surface. The second fulcrum A2 of the first link 521 is hinged to the roof and the hinge axis L4 is parallel to the hinge axis L1 of the horizontal side wall and the floor of the surface.

[0055] When the roof rises under the lifting action of the first lifting device 51, the lifting force from the first lifting device 51 is transmitted to the transverse side wall through the first connecting rod 521, causing the transverse side wall to gradually rotate from a horizontal state to a vertical state around the hinge axis L1 during the roof's rise. At the same time, the first connecting rod 521 of the second lifting device also gradually rotates to a vertical state. When the roof descends, the roof's own weight and the pull / pressure from the first lifting device 51 are transmitted to the transverse side wall through the first connecting rod 521, causing the transverse side wall to gradually rotate from a vertical state to a horizontal state during the roof's descent. At the same time, the first connecting rod 521 of the second lifting device 52 also gradually rotates to a horizontal state.

[0056] The second lifting device simplifies the deployment and retraction of the vehicle-mounted house. Furthermore, since the hinge axis of the first link 521 of the second lifting device is parallel to the hinge axis of the side wall and the floor, and both the first link 521 and the side wall have a certain rigidity, the swaying of the roof in the direction parallel to the hinge axis of the side wall and the floor can be restricted. In addition to other means, this can further ensure that the roof can be raised and lowered vertically under the action of the first lifting device, avoiding the problem of the roof being stuck due to large swaying amplitude.

[0057] Furthermore, such as Figure 10 The vehicle-mounted cabin includes a stop block 524, which is fixed to a side wall connected to a first connecting rod 521. The stop block 524 is located between the first fulcrum A1 of the first connecting rod 521 and the hinge axis between the side wall and the floor. In the figure, the side wall connected to the first connecting rod 521 is a transverse side wall 10, and the stop block 524 is fixed to the transverse side wall 10. The stop block 524 is located between the first fulcrum A1 of the first connecting rod 521 and the hinge axis L1 between the transverse side wall 10 and the floor.

[0058] like Figure 11, in the storage state, the first connecting rod 521 is in a horizontal state, the second supporting point A2 of the first connecting rod 521 is located outside the first supporting point A1 of the first connecting rod 521, and the first supporting point A1 of the first connecting rod 521 is located inside the hinge shaft of the side wall connected thereto and the floor. In the figure, the side wall connected with the first connecting rod 521 is the transverse side wall 10, and the first supporting point A1 of the first connecting rod 521 is located inside the hinge shaft L1 of the transverse side wall 10 and the floor.

[0059] Further, as Figure 10 The second lifting device 52 can also be provided with a spring 523 (or a torsion rod, an actuating telescopic rod, etc.), which is connected between the first connecting rod 521 and the second connecting rod 522. Under the elastic force of the spring, the included angle θ of the first connecting rod 521 and the second connecting rod 522 tends to increase, and the included angle between the first connecting rod 521 and the transverse side wall 10 connected thereto tends to decrease.

[0060] With the above arrangement, as Figures 11-14 The unfolding process of the vehicle-mounted house is divided into the following four stages:

[0061] In the first stage, the roof just starts to rise from the lowest position (i.e., the position in contact with the floor). At this time, the first connecting rod 521 is driven by the roof to rotate around its first supporting point A1 and move towards the hinge shaft L1 until the first sliding block on the first connecting rod 521, which is hinged to the first supporting point A1, comes into contact with the stop block 524 (hereinafter referred to as the first supporting point A1 coming into contact with the stop block 524). During this period, the transverse side wall 10 connected with the first connecting rod 521 remains substantially horizontal and stationary, avoiding the problem of increasing the required initial lifting force when the roof just starts to rise. When the roof just starts to rise from the lowest position, the included angle of the cross arm of the first lifting device 51 is very small, so the required lifting force is relatively large at this time. If the lifting force is further increased, a higher power power element needs to be configured, which will result in a significant increase in cost and even make it impossible to achieve. Of course, under the condition of permission, the first supporting point A1 of the first connecting rod 521 directly comes into contact with the stop block 524 when the roof just starts to rise from the lowest position, which is also feasible.

[0062] In addition, by setting the spring 523, the elastic force of the spring 523 can be superimposed with the lifting force of the first lifting device 51 to drive the roof to rise when the roof just starts to rise from the lowest position, thereby reducing the required lifting force when the roof just starts to rise.

[0063] In the second stage, after the first supporting point A1 of the first connecting rod 521 contacts with the stopper 524, the roof continues to rise, at this time, the first connecting rod 521 can only rotate and cannot move towards the hinge shaft L1 of the horizontal side wall any more. During this period, the rotating moment of the first connecting rod 521 is transmitted to the horizontal side wall 10 through the stopper 524, and the horizontal side wall 10 is driven to turn outwards around the hinge shaft L1 until the horizontal side wall 10 is turned to a certain angle (hereinafter referred to as critical angle) with the ground.

[0064] When the angle between the horizontal side wall 10 and the ground is less than the critical angle, with the increase of the angle between the horizontal side wall 10 and the ground, the contact force of the first supporting point A1 of the first connecting rod 521 on the stopper 524 becomes larger and larger, that is, the first supporting point A1 of the first connecting rod 521 and the stopper 524 press each other more and more tightly. Then, when the angle between the horizontal side wall 10 and the ground approaches the critical angle, the contact force of the first supporting point A1 of the first connecting rod 521 on the stopper 524 becomes smaller and smaller.

[0065] The size of the critical angle is related to the weight of the horizontal side wall 10, the position of the stopper 524 in the height direction of the horizontal side wall 10, and whether the horizontal side wall 10 is subjected to other external forces (such as the elastic force of the spring 523 on the first connecting rod 521). Generally, the critical angle is between the horizontal position and the vertical position of the horizontal side wall 10, and it is more advantageous to be closer to the vertical position.

[0066] In the third stage, with the further rising of the roof, the horizontal side wall 10 continues to turn outwards around the hinge shaft L1, so that the angle between the horizontal side wall 10 and the ground is gradually greater than the critical angle. When the angle between the horizontal side wall 10 and the ground is greater than the critical angle, with the increase of the angle between the horizontal side wall 10 and the ground, the first supporting point A1 of the first connecting rod 521 is driven by the first sliding block to slide along the height direction of the horizontal side wall 10 to the direction away from the stopper 524, so that the first supporting point A1 of the first connecting rod 521 is gradually separated from the stopper 524.

[0067] When the first supporting point A1 of the first connecting rod 521 contacts with the stopper 524, the horizontal side wall 10 turns outwards by multiple forces, which are the rising force of the roof, the contact force of the first supporting point A1 of the first connecting rod 521 on the stopper 524, and the elastic force of the spring 523 to make the angle between the first connecting rod 521 and the horizontal side wall 10 decrease, etc.

[0068] When the first supporting point A1 of the first connecting rod 521 is separated from the stopper 524, if the weight of the horizontal side wall 10 is large, the horizontal side wall 10 can not continue to turn outwards, which can result in that the horizontal side wall 10 cannot be smoothly unfolded to the vertical position.

[0069] And by setting the spring 523, when the first fulcrum A1 of the first connecting rod 521 is disengaged from the stopper 524, the spring 523 can provide the lateral side wall 10 with a turning force to turn to the vertical position, so as to make up for the deficiency that the lateral side wall 10 is not easy to expand to the vertical position by relying on the lifting force of the roof alone.

[0070] In the fourth stage, when the lateral side wall is turned to the vertical position and the roof is at the preset height position, the roof can continue to rise to the highest position after the lateral side wall is turned to the vertical position, and the lateral side wall basically remains in the vertical state without moving and turning outwards during this period. Similarly, during the storage process, the roof can be lowered from any position above the preset height position to the abutting position (the abutting position is lower than the preset height position), and when the roof is lowered to the abutting position, the first fulcrum A1 of the first connecting rod 521 abuts against the stopper 524, and the lateral side wall basically remains in the vertical state without moving and turning inwards during this period.

[0071] That is, when the roof is raised and lowered within the range of the highest position and the abutting position, the lateral side wall remains in the vertical state without moving, so that the user can adjust the height of the roof as needed while the lateral side wall remains in the vertical state. That is, within the position range, the raising and lowering of the roof is irrelevant to the turning of the lateral side wall.

[0072] With the above characteristics, when the roof is within the position range, the lateral side wall outer plate 12 and the longitudinal side wall outer plate 22 are slid upward along the height direction to the roof (i.e., the vehicle-mounted house is in an enclosed state), and appropriate means are used to connect the lateral side wall outer plate 12 and the longitudinal side wall outer plate 22 to the roof in the vertical direction, at this time, the first lifting device 51 is driven to rise or lower, which will make the lateral side wall outer plate 12 and the longitudinal side wall outer plate 22 rise or lower with the roof at the same time, i.e., the vehicle-mounted house is raised or lowered in the enclosed state. This is particularly helpful for reducing the windward area of the vehicle-mounted house and reducing the wind pressure of the vehicle-mounted house when camping in the wind.

[0073] In addition, after the lateral side wall is turned to the vertical position, the force of the roof acting on the first connecting rod 521 makes the lateral side wall connected thereto easy to turn inwards and unable to stably remain in the vertical position. And by setting the spring 523, after the lateral side wall is turned to the vertical position, the elastic force of the spring 523 applied to the first connecting rod 521 can offset the force of the roof acting on the first connecting rod 521, so as to enable the lateral side wall to stably remain in the vertical position.

[0074] In summary, with the above arrangement, when the roof is just starting to rise from the lowest position, the side wall connected with the second lifting device is basically kept in a horizontal state, thereby reducing the lifting force required when the roof is just starting to rise. When the roof is rising within the range from the highest position above the preset height position to the abutting position below the preset height position, the side wall connected with the second lifting device is basically kept in a vertical state, thereby avoiding the problem that the side wall is inwardly turned over when the roof is just starting to descend from the position above the preset height position, thereby reducing the height-adjustable range of the roof.

[0075] Further, as shown in Figure 10 , the second lifting device 52 can further include a second sliding block (not shown in the figure) and a second connecting rod 522. The second sliding block is slidably connected to a side wall (hereinafter, the transverse side wall 10 is taken as an example for illustration, and in actual implementation, the longitudinal side wall 20 can also be connected), and can be connected to the sliding groove of the peripheral frame of the side wall, and the second sliding block can slide along the height direction of the side wall.

[0076] The first supporting point B1 of the second connecting rod 522 is hingedly connected with the second sliding block, and the hinge axis L6 is parallel to the hinge axis L1 of the side wall and the floor. The second supporting point B2 of the second connecting rod 522 is hingedly connected with the third supporting point A3 of the first connecting rod 521, and the hinge axis L5 is parallel to the hinge axis L1 of the side wall and the floor.

[0077] As shown in Figure 11 , in the storage state, the first connecting rod 521 and the second connecting rod 522 are in a horizontal state. At this time, the third supporting point A3 of the first connecting rod 521 is located inside the first supporting point A1 of the first connecting rod 521, and the first supporting point B1 of the second connecting rod 522 is located outside the first supporting point A1 of the first connecting rod 521.

[0078] Since the hinge axis L5 of the second connecting rod 522 and the first connecting rod 521 and the hinge axis L6 of the side wall are all parallel to the hinge axis of the side wall and the floor, and the second connecting rod 522 has a certain rigidity, the second connecting rod 522 can also limit the swing of the roof in the direction parallel to the hinge axis of the side wall and the floor, thereby further ensuring the vertical lifting of the roof under the driving of the first lifting device, and avoiding the problem that the roof cannot be lifted due to the large swing amplitude.

[0079] Further, as shown in Figure 11 , when the second connecting rod 522 is stored to the horizontal state, the first supporting point B1 of the second connecting rod 522 is located outside the stop block 524. In other words, when the second connecting rod 522 is unfolded to the vertical state, the first supporting point B1 of the second connecting rod 522 is located below the stop block 524. In this way, when the second connecting rod 522 slides to the highest position along the height direction of the side wall, the stop block 524 can be abutted, thereby limiting the highest position of the roof.

[0080] Further, as Figure 15 The second lifting device further comprises a limiting member 525, which is arranged on the first connecting rod 521 or the second connecting rod 522 or the lateral side wall 10, and is arranged on the second connecting rod 522 in the illustration. When the included angle θ between the first connecting rod 521 and the second connecting rod 522 reaches 180°, the first connecting rod 521 is in contact with the limiting member 525, the limiting member 525 makes the included angle θ between the first connecting rod 521 and the second connecting rod 522 unable to continue to increase from 180°, and the limiting member 525 makes the lateral side wall 10 unable to continue to overturn outward from the vertical position, that is, under the elastic force of the spring 523, the lateral side wall 10 will be pressed in the vertical position until the first fulcrum A1 of the first connecting rod 521 is in contact with the stop block 524 from top to bottom, and offsets the elastic force.

[0081] The lifting mechanism of the vehicle-mounted house provided by the present application is described in detail above. The principles and implementation manners of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A lifting mechanism for storing a retractable vehicle-mounted house, characterized in that, The lifting mechanism includes a first lifting device (51) and a second lifting device (52); the first lifting device (51) and the second lifting device (52) are arranged, one on the longitudinal side of the retractable vehicle compartment and the other on the transverse side of the retractable vehicle compartment, or both on the longitudinal or transverse side of the retractable vehicle compartment; the first lifting device (51) is connected between the roof and the floor of the retractable vehicle compartment and is used to lift the roof; the second lifting device (52) is used to make the side walls of the retractable vehicle compartment move with the roof as it rises and falls. For floor rotation, the second lifting device (52) includes a first slider and a first connecting rod (521). The first slider is slidably connected to the corresponding side wall of the retractable vehicle room and can slide along the height direction of the corresponding side wall. The first fulcrum (A1) of the first connecting rod (521) is hinged to the first slider and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor. The second fulcrum (A2) of the first connecting rod (521) is hinged to the roof of the retractable vehicle room and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor.

2. The lifting mechanism for the retractable vehicle-mounted room according to claim 1, characterized in that, The retractable vehicle-mounted room is provided with one first lifting device (51) on each of the two longitudinal sides or two transverse sides, and two second lifting devices (52) are provided on each of the other two sides of the retractable vehicle-mounted room. The two second lifting devices (52) on the same side are respectively connected to the two ends of the side wall in the length direction of that side.

3. The lifting mechanism for the retractable vehicle-mounted house according to claim 1, characterized in that, The second lifting device (52) includes a stop block (524). The first connecting rod (521) is retracted to a state parallel to the floor. The second fulcrum (A2) of the first connecting rod (521) is located outside the first fulcrum (A1) of the first connecting rod (521). The first fulcrum A1 of the first connecting rod (521) is located inside the hinge axis of the side wall and the floor connected thereto. The stop block (524) is located between the first fulcrum (A1) of the first connecting rod (521) and the hinge axis of the side wall and the floor connected thereto.

4. The lifting mechanism for the retractable vehicle-mounted house according to claim 3, characterized in that, The second lifting device includes a second slider and a second connecting rod (522). The second slider is slidably connected to the corresponding side wall and can slide along the height direction of the corresponding side wall. The first fulcrum (B1) of the second connecting rod (522) is hinged to the second slider and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor. The second fulcrum (B2) of the second connecting rod (522) is hinged to the third fulcrum (A3) of the first connecting rod (521) and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor. When the first connecting rod (521) and the second connecting rod (522) are retracted to a state parallel to the floor, the third fulcrum (A3) of the first connecting rod (521) is located inside the first fulcrum (A1) of the first connecting rod (521), and the first fulcrum (B1) of the second connecting rod (522) is located outside the first fulcrum (A1) of the first connecting rod (521).

5. The lifting mechanism for the retractable vehicle-mounted house according to claim 4, characterized in that, The second lifting device (52) includes a spring (523), which is connected between the first link (521) and the second link (522). Under the action of the elastic force of the spring (523), the angle between the first link (521) and the second link (522) tends to increase, and the angle between the first link (521) and the side wall connected thereto tends to decrease.

6. The lifting mechanism for the retractable vehicle-mounted house according to claim 5, characterized in that, The second lifting device (52) includes a limiting member (525), which is disposed on the first connecting rod (521) or the second connecting rod (522) or the corresponding side wall. When the included angle between the first connecting rod (521) and the second connecting rod (522) reaches 180°, the first connecting rod (521) or the second connecting rod (522) or the corresponding side wall abuts against the limiting member (525) to prevent the included angle between the first connecting rod (521) and the second connecting rod (522) from continuing to increase and to prevent the corresponding side wall from continuing to flip outward in a vertical state.

7. The lifting mechanism for the retractable vehicle-mounted house according to any one of claims 1-6, characterized in that, The first lifting device (51) includes a cross arm (511), an upper guide (512), a lower guide (514), an upper sliding member (513) that slides along the upper guide (512), and a lower sliding member (515) that slides along the lower guide (514). The upper guide (512) is connected to the roof (30) of the retractable vehicle room, and the lower guide (514) is connected to the floor (40) of the retractable vehicle room. The upper end of the cross arm (511) is connected to the upper sliding member (513), and the lower end of the cross arm (511) is connected to the lower sliding member (515).

8. The lifting mechanism for the retractable vehicle-mounted house according to claim 7, characterized in that, The cross arm (511) includes two arms that cross each other and are hinged at the cross position by a hinge structure. Each arm includes two arm segments, one arm segment connected to the roof (30) and the other arm segment connected to the floor (40). The two arm segments can be detachably connected together.

9. The lifting mechanism for the retractable vehicle-mounted house according to claim 8, characterized in that, The two sections of the outrigger are connected together by a transition piece.

10. The lifting mechanism for the retractable vehicle-mounted house according to claim 8, characterized in that, The upper guide member (512) of the first lifting device includes two upper guide parts (512a), which are respectively used to guide the two upper sliding members (513) connected to the upper ends of the two arms of the cross arm (511). When the vehicle house is unfolded, the two upper guide parts (512a) of the upper guide member (512) are parallel or not parallel to the lower guide member (514).

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