WO2024078576A1 - Raising/lowering mechanism of collapsible vehicle-mounted tent - Google Patents

Abstract

A raising/lowering mechanism of a collapsible vehicle-mounted tent, comprising a first raising/lowering device for raising/lowering the roof and a second raising/lowering device for rotating the side walls relative to the floor along with the raising/lowering of the roof. One of the first raising/lowering device and the second raising/lowering device is arranged on the longitudinal side of the collapsible vehicle-mounted tent, and the other one is arranged on the transverse side of the collapsible vehicle-mounted tent, or the first raising/lowering device and the second raising/lowering device are both arranged on the longitudinal side or the transverse side; the second raising/lowering 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 collapsible vehicle-mounted tent and can slide along the height direction of the corresponding side wall; a first fulcrum of the first connecting rod is hingedly connected to the first sliding block, and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor; and a second fulcrum of the first connecting rod is hingedly connected to the roof of the collapsible vehicle-mounted tent, and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor. By means of the present solution, unfolding and folding operations of the vehicle-mounted tent are more convenient and faster, and in the unfolding and folding process of the vehicle-mounted tent, the roof can ascend and descend vertically and is not prone to warping deformation.

Description

Lifting mechanism for storing the vehicle room

This application claims the priority of the Chinese patent application filed with the China Patent Office on October 13, 2022, with application number 202211258199.9 and application name “Lifting mechanism for foldable vehicle room”, all contents of which are incorporated by reference in this application.

Technical Field

The present application relates to the technical field of vehicle-mounted tents, and in particular to a lifting mechanism capable of storing a vehicle-mounted room.

Background technique

At present, the internal space of car-mounted 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.

In view of this, how to make a tent with a large internal space easier to fold and unfold is a technical problem that technical personnel in this field need to solve. In addition, the stability after unfolding and the ability to resist external interference such as side wind also need to be improved.

Summary of the invention

In order to solve the above technical problems, the present application provides a lifting mechanism for a foldable vehicle house, the lifting mechanism comprising a first lifting device and a second lifting device; the first lifting device and the second lifting device, one of which is arranged on the longitudinal side of the foldable vehicle house, and the other is arranged on the longitudinal side of the foldable vehicle house. The lateral side of the vehicle room, or, are all arranged on the longitudinal side or lateral side of the storable vehicle room; the first lifting device is connected between the roof and the floor of the storable vehicle room, and is used to lift the roof; the second lifting device is used to make the side wall of the storable vehicle room rotate relative to the floor as the roof is raised and lowered, the second lifting device includes a first slider and a first connecting rod, the first slider is slidably connected to the corresponding side wall of the storable vehicle room, and can slide along the height direction of the corresponding side wall, the first fulcrum of the first connecting rod 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 of the first connecting rod is hinged to the roof of the storable vehicle room and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor.

An implementation manner of a lifting mechanism for a storable vehicle house, wherein one first lifting device is arranged on each of the two longitudinal sides or the two lateral sides of the storable vehicle house, two second lifting devices are arranged on each of the other two sides of the storable vehicle house, and the two second lifting devices on the same side are respectively connected to the two ends of the side wall in the length direction.

An embodiment of a lifting mechanism for a foldable vehicle room, wherein the second lifting device includes a stop block, and when the first connecting rod is stored to be parallel to the floor, the second fulcrum of the first connecting rod is located outside the first fulcrum of the first connecting rod, the first fulcrum of the first connecting rod is located inside the hinge axis of the side wall and the floor connected thereto, and the stop block is located between the first fulcrum of the first connecting rod and the hinge axis of the side wall and the floor connected thereto.

An embodiment of a lifting mechanism for accommodating a vehicle room, wherein the second lifting device includes 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 fulcrum of the second connecting rod 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 of the second connecting rod is hinged to the third fulcrum of the first connecting rod and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor axis; when the first link and the second link are stored parallel to the floor, the third fulcrum of the first link is located inside the first fulcrum of the first link, and the first fulcrum of the second link is located outside the first fulcrum of the first link.

An embodiment of a lifting mechanism for a foldable vehicle room, wherein the second lifting device includes a spring, wherein the spring is connected between the first connecting rod and the second connecting rod, and under the elastic force of the spring, the angle between the first connecting rod and the second connecting rod tends to increase and the angle between the first connecting rod and the side wall connected thereto tends to decrease.

In one embodiment of a lifting mechanism that can accommodate a vehicle room, the second lifting device includes a limit member, and the limit member is arranged on the first connecting rod or the second connecting rod or the corresponding side wall. When the angle between the first connecting rod and the second connecting rod reaches 180°, the first connecting rod or the second connecting rod or the corresponding side wall abuts against the limit member to prevent the angle between the first connecting rod and the second connecting rod from continuing to increase and to prevent the corresponding side wall from continuing to flip outward over the vertical state.

An embodiment of a lifting mechanism for a room that can accommodate a vehicle, wherein the first lifting device includes a 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 being connected to the roof of the room that can accommodate a vehicle, the lower guide being connected to the floor of the room that can accommodate a vehicle, the upper end of the cross arm being connected to the upper sliding member, and the lower end of the cross arm being connected to the lower sliding member.

An embodiment of a lifting mechanism for a foldable vehicle house, wherein the cross arm includes two support arms, the two support arms cross each other and are hinged at the crossing position by a hinge structure, each support arm includes two arm sections, one arm section is connected to the roof, and the other arm section is connected to the floor, and the two arm sections are detachably connected together.

An implementation manner of a lifting mechanism capable of accommodating a vehicle-mounted house, wherein the two arm sections of the support arm are plugged together via a transition piece.

An embodiment of a lifting mechanism that can accommodate a vehicle-mounted house, wherein the upper guide member of the first lifting device includes two upper guide portions, which are respectively used to guide the two upper sliding members connected to the upper ends of the two support arms of the cross arm, and when the vehicle-mounted house is in an unfolded state, the two upper guide portions of the upper guide member are parallel or non-parallel to the lower guide member.

The adoption of this solution makes the deployment and storage operations of the retractable vehicle house more convenient and quicker. In addition, during the deployment and storage of the vehicle house, the roof can be raised and lowered vertically and is not prone to warping and deformation. Moreover, after deployment, the stability of the retractable vehicle house and its ability to resist external interference such as lateral wind are better. When the roof is raised and lowered within a certain range, the side walls will not flip over accordingly. Therefore, the roof can be lowered for use in windy conditions to ensure wind resistance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of an embodiment of a retractable vehicle-mounted house using a lifting mechanism provided by the present application in an unfolded state;

2 to 4 are three-dimensional views of the vehicle room shown in FIG. 1 when it is stored to different degrees;

5 and 6 are partial structural diagrams of the upper part of two embodiments of the first lifting device respectively;

FIG7 is a partial structural diagram of the lower part of an embodiment of the first lifting device;

FIG8 is a schematic diagram of an embodiment of a cross arm of a first lifting device;

FIG9 is a schematic diagram of the second lifting device connected to the lateral side wall;

FIG10 is an exploded view of the connection position of the first connecting rod, the second connecting rod, and the side wall;

FIG11 is a state diagram of the first link, the second link and the cross arm in the storage state;

Figures 12 to 14 are schematic diagrams of the vehicle-mounted room being unfolded to different degrees;

FIG. 15 is a state diagram when the angle between the first connecting rod and the second connecting rod reaches 180°.

The following are the descriptions of the reference numerals:
10 transverse side wall, 11 transverse side wall inner plate, 12 transverse side wall outer plate;
20 longitudinal side wall, 21 longitudinal side wall inner plate, 22 longitudinal side wall outer plate;
30 roof, 31 first roof tile, 32 second roof tile, 33 third roof tile, 34
Fourth roof plate;
40 floor, 41 first floor board, 42 first floor board, 43 first floor board, 44
First floor slab;
50 lifting mechanism;
51 first lifting device, 511 cross arm, 511a first arm section, 511b second arm section, 511c
The third arm segment, 511d the fourth arm segment, 511e the first transition piece, 511f the second transition piece, 512 the upper guide piece, 512a the upper guide portion, 513 the upper sliding piece, 514 the lower guide piece, 514a the lower guide portion, 515 the lower sliding piece;
52 second lifting device, 521 first connecting rod, 522 second connecting rod, 523 spring, 524 stop block, 525 limiting member.

Detailed ways

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

As shown in FIG1 , when the storable vehicle house (hereinafter referred to as the vehicle house) is unfolded, the space inside the house is roughly rectangular. The vehicle house has two oppositely arranged transverse side walls 10 (the length direction of the transverse side walls 10 is along the transverse direction) and two oppositely arranged longitudinal side walls 20 (the length direction of the longitudinal side walls 20 is along the longitudinal direction), and also has a roof 30, a floor 40, a lifting mechanism 50, etc., and a bracket is provided at the bottom of the floor 40 to support the vehicle house from the ground.

The lateral side wall of the vehicle room 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, wherein two lateral side wall inner panels 11 are arranged in sequence in the lateral direction and connected at the joints by bolts, and two lateral side wall outer panels 12 are arranged in sequence in the lateral direction and connected at the joints by bolts. The two lateral side wall inner panels 11 (or lateral side wall outer panels 12) are hinged to the floor 40, and the hinge axis is L1. By rotating around the hinge axis L1, the switching between the vertical state (perpendicular to the floor) and the horizontal state (parallel to the floor) is realized. The two lateral side wall outer panels 12 are slidably installed on the outside of the two lateral side wall inner panels 11, and can slide along the height direction of the lateral side wall inner panels 11. Among them, the lateral side wall can also have a structural form of only one layer of panels, that is, the lateral side wall has only panels 11 or only panels 12.

Similarly, the longitudinal side wall 20 of the vehicle room 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, of which two longitudinal side wall inner panels 21 are arranged in sequence along the longitudinal direction and connected at the seams by bolts, and two longitudinal side wall outer panels 22 are arranged in sequence along the longitudinal direction and connected at the seams by bolts. 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 axis is L2. The switching between the vertical state (perpendicular to the floor) and the horizontal state (parallel to the floor) is achieved by rotating around the hinge axis L2. The two longitudinal side wall outer panels 22 can be slidably installed on the outside of 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 walls can also In the structural form of only one layer of panels, that is, the longitudinal side wall has only panels 21 or only panels 22.

With the above arrangement, the user can freely adjust the height of the transverse side wall 10 and the longitudinal side wall 20, and can make the top sides of the transverse side wall 10 and the longitudinal side wall 20 the same height as the roof, in which case the car room is in a closed state; or, as shown in FIG. 1 , the transverse side wall 10 and the longitudinal side wall 20 can be spaced a certain distance from the roof, in which case the car room is in a terrace state, so that ventilation can be smooth and the user can have a clear view in the room.

The roof 30 is formed by splicing a plurality of 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 roof seams therebetween. The floor 40 is formed by splicing a plurality of 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 floor seams therebetween.

The lifting mechanism 50 includes 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 of the vehicle room (which can be the transverse side wall 10 or the longitudinal side wall 20), and is used to enable the side wall of the vehicle room to rotate relative to the floor as the roof is lifted and lowered, so that the transverse side wall 10 or the longitudinal side wall 20 can be extended and retracted while the roof is lifted and lowered, and, while the transverse side wall 10 or the longitudinal side wall 20 is extended and retracted, it can in turn help improve the stability of the roof lifting and lowering.

The first lifting device 51 and the second lifting device 52 can be both arranged on the longitudinal side of the vehicle room, or both arranged on the transverse side of the vehicle room, or one can be arranged on the longitudinal side of the vehicle room and the other on the transverse side of the vehicle room. In the figure, the first lifting device 51 is arranged on the longitudinal side of the vehicle room, and the second lifting device 52 is arranged on the transverse side of the vehicle room, connected to the transverse side wall 10, of course, it can also be arranged on the longitudinal side of the vehicle room and the second lifting device 52 is arranged on the transverse side of the vehicle room. For ease of understanding, the following description will be made by taking the connection between the second lifting device 52 and the transverse side wall 10 as an example.

The number of the first lifting devices 51 can be one or more, and the number of the second lifting devices 52 can be one or more. In the figure, the vehicle room is provided with two first lifting devices 51, and the two first lifting devices 51 are respectively arranged on the two longitudinal sides of the vehicle room. In the figure, the vehicle room is provided with four second lifting devices 52, wherein two second lifting devices 52 are arranged on one lateral side of the vehicle room, and are respectively connected to the two ends of the length direction of the lateral side wall 10 of this side, and the other two second lifting devices 52 are respectively arranged on the other lateral side of the vehicle room, and are respectively connected to the two ends of the length direction of the lateral side wall 10 of this side, so that the two lateral side walls of the vehicle room can rotate around their respective hinge shafts L1 relative to the floor as the roof rises and falls.

During the unfolding of the vehicle-mounted room, the first lifting device 51 lifts the roof to a position a certain distance from the floor (as shown in Figures 1 and 9). During the rising of the roof, the two lateral side walls rotate outward around their respective hinge axes L1 relative to the floor, gradually rotating from a horizontal state to a vertical state.

During the storage of the vehicle-mounted room, the first lifting device 51 lowers the roof to a position in contact with the floor (as shown in FIG. 2). During the lowering of the roof, the two lateral side walls 10 rotate inward relative to the floor around their respective hinge shafts L1, gradually rotating from a vertical state to a horizontal state, and then lying flat on the floor when rotating to the horizontal state. After that, the floor panels are separated from each other along the floor joints, and the roof panels are separated from each other along the roof joints. After separation, the roof panels are also laid flat on the floor (as shown in FIG. 3). Then, the floor panels and the structures laid flat on the floor panels are stacked in layers by means of shifting and folding (as shown in FIG. 4).

The structures of the first lifting device 51 and the second lifting device 52 are described in detail below:

The first lifting device 51

As shown in Fig. 1, the first lifting device 51 includes a cross arm 511, and the cross arm 511 includes two arms, which cross each other in an X shape and are connected together at the intersection so as to be relatively rotatable. It is preferred that the first lifting device 51 is configured as a symmetrical structure that is longitudinally symmetrical about the intersection of its cross arms, so that motion matching is easier and motion interference is less likely to occur.

As shown in FIG5 , the first lifting device 51 includes an upper guide 512 and two upper sliding members 513 (only one upper sliding member 513 is shown in FIG5 ). 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 slider, etc. The upper ends of the two arms of the cross arm 511 are respectively hinged to the two upper sliding members 513. Each upper guide 512 includes two upper guide portions 512a, and the two upper sliding members 513 are respectively connected to the two upper guide portions 512a of the upper guide 512, and can slide along the corresponding upper guide portions 512a. The two upper guide portions 512a of the upper guide 512 are respectively connected to two roof panels, and can be fixedly connected or hinged to the outer frame of the roof panel. If they are hinged, the upper guide portion 512a can rotate relative to the roof during the lifting process. In the scheme shown in FIG5, a fixed connection is adopted. In this scheme, the two upper guides 512a are disconnected at the joint of the roof panels, so as not to affect the stacking and storage of the roof. In this scheme, the two upper guides 512a of the upper guide 512 are not parallel to the lower guide 514, and the two upper guides 512a of the upper guide 512 form an angle β with each other, and the two upper guides 512a of the upper guide 512 form an angle α with the lower guide. In the scheme shown in FIG6, a hinge is adopted. In this scheme, the two upper guides 512a are connected at the joint of the roof panels by the plug-in sleeve 512b. When storing, the two upper guides 512a are disconnected at the joint of the roof panels by removing or sliding the plug-in sleeve 512b, so as not to affect the stacking and storage of the roof. In this scheme, the two upper guides 512a of the upper guide 512 are parallel to the lower guide 514.

As shown in FIG. 7 , the first lifting device 51 includes a lower guide member 514 and two lower sliding members 515 ( FIG. 7 shows only one lower sliding member 515, the lower guide member 514 can be a guide rod, a guide rail, a guide sleeve, etc., and the lower sliding member 515 can be a sliding sleeve, a slider, etc. Each lower guide member 514 includes two lower guide portions 513a, and 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, respectively. 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 portion 514a is connected to the floor 40, and can be specifically 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.

As shown in FIG8 , each arm of the cross arm 511 includes 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.

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

Specifically, the two arm sections of each arm can be directly plugged together or indirectly plugged together through a transition piece. In the scheme shown in FIG8 , a first transition piece 511e and a second transition piece 511f are provided, the first arm section 511a and the fourth arm section 511d are plugged together through the first transition piece 511e, and the second arm section 511b and the third arm section 511c are plugged together through the second transition piece 511f.

Second lifting device 52

As shown in Figures 9 and 10, the 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 (hereinafter, the transverse side wall 10 is used as an example for description, and in actual implementation, it can also be connected to the longitudinal side wall 20), and specifically can be connected to the slide groove of the outer frame of the transverse side wall 10. The first slider can slide along the height direction of the transverse side wall 10.

The first fulcrum A1 of the first connecting rod 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. The second fulcrum A2 of the first connecting rod 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.

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 lateral side wall through the first connecting rod 521, so that the lateral side wall gradually rotates from the horizontal state to the vertical state around the hinge axis L1 during the rising process of the roof, and at the same time, the first connecting rod 521 of the second lifting device also gradually rotates to the vertical state. When the roof descends, the weight of the roof and the downward pull/pressure from the first lifting device 51 are transmitted to the lateral side wall through the first connecting rod 521, so that the lateral side wall gradually rotates from the vertical state to the horizontal state during the descending process of the roof, and at the same time, the first connecting rod 521 of the second lifting device 52 also gradually rotates to the horizontal state.

The second lifting device is provided, on the one hand, to simplify the steps of unfolding and retracting the vehicle-mounted room; on the other hand, since the hinge axis between the first connecting rod 521 of the second lifting device and the roof and the hinge axis between the first connecting rod 521 and the side wall are parallel to the hinge axis between the side wall and the floor, and the first connecting rod 521 and the side wall have a certain rigidity, the swing of the roof in the direction parallel to the hinge axis between the side wall and the floor can be limited. In addition to other means, it can further ensure that the roof is lifted and lowered vertically under the drive of the first lifting device, avoiding the problem of being unable to lift and lower due to jamming caused by the large swing amplitude of the roof.

Further, as shown in FIG10 , the vehicle housing includes a stop block 524, which is fixed to the first The side wall connected to the first connecting rod 521, the stopper 524 is located between the first fulcrum A1 of the first connecting rod 521 and the hinge axis between the side wall connected thereto and the floor. In the figure, the side wall connected to the first connecting rod 521 is the transverse side wall 10, the stopper 524 is fixed to the transverse side wall 10, and the stopper 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.

As shown in Figure 11, in the stored state, the first connecting rod 521 is in a horizontal state, the second fulcrum A2 of the first connecting rod 521 is located on the outside of the first fulcrum A1 of the first connecting rod 521, and the first fulcrum A1 of the first connecting rod 521 is located on the inner side of the hinge axis of the side wall connected thereto and the floor. In the figure, the side wall connected to the first connecting rod 521 is the transverse side wall 10, and the first fulcrum A1 of the first connecting rod 521 is located on the inner side of the hinge axis L1 between the transverse side wall 10 and the floor.

Furthermore, as shown in FIG10 , the second lifting device 52 may also be provided with a spring 523 (or a torsion bar, an actuating telescopic rod, etc.), and the spring is connected between the first connecting rod 521 and the second connecting rod 522. Under the elastic force of the spring, the angle θ between the first connecting rod 521 and the second connecting rod 522 tends to increase, and the angle between the first connecting rod 521 and the lateral side wall 10 connected thereto tends to decrease.

With the above configuration, as shown in Figures 11 to 14, the deployment process of the vehicle room is divided into the following four stages:

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, driven by the roof, rotates around its first fulcrum A1 and moves toward the hinge axis L1 until the first slider hinged to the first fulcrum A1 on the first connecting rod 521 collides with the stop block 524 (hereinafter referred to as the first fulcrum A1 collides with the stop block 524). During this period, the transverse side wall 10 connected to the first connecting rod 521 basically remains in a horizontal state and does not move, avoiding the problem of the transverse side wall 10 rising as the roof just starts to rise, resulting in an increase in the required initial lifting force. When the roof just starts to rise from the lowest position, the required lifting force is relatively large because the angle of the cross arm of the first lifting device 51 is very small. If the lifting force is further increased, a higher-power dynamic device needs to be configured. Of course, if conditions permit, it is also feasible that the first fulcrum A1 of the first connecting rod 521 directly contacts the stop block 524 when the roof just starts to rise from the lowest position.

In addition, by providing the above-mentioned spring 523, when the roof just starts to rise from the lowest position, the elastic force of the spring 523 can be superimposed on the lifting force of the first lifting device 51 to drive the roof to rise, thereby reducing the lifting force required when the roof just starts to rise.

In the second stage, after the first fulcrum A1 of the first connecting rod 521 collides with the stop block 524, the roof continues to rise. At this time, the first connecting rod 521 only rotates and can no longer move toward the hinge axis L1 close to the lateral side wall. During this period, the rotational torque of the first connecting rod 521 is transmitted to the lateral side wall 10 connected thereto through the stop block 524, driving the lateral side wall 10 to flip outward around the hinge axis L1 until the lateral side wall 10 flips to a certain angle with the ground (hereinafter referred to as the critical angle).

After the first fulcrum A1 of the first connecting rod 521 contacts the stop block 524, when the angle between the lateral side wall 10 and the ground is less than the critical angle, as the angle between the lateral side wall 10 and the ground increases, the contact force of the first fulcrum A1 of the first connecting rod 521 on the stop block 524 becomes greater and greater, that is, the first fulcrum A1 of the first connecting rod 521 and the stop block 524 are pressed against each other more and more tightly, and then, when the angle between the lateral side wall 10 and the ground approaches the critical angle, the contact force of the first fulcrum A1 of the first connecting rod 521 on the stop block 524 becomes smaller and smaller.

The size of this critical angle is related to the weight of the transverse side wall 10, the position of the stop block 524 in the height direction of the transverse side wall 10, and whether the transverse side wall 10 is subjected to other external forces (such as the spring 523 applying elastic force to the first connecting rod 521). Generally, this critical angle is between the horizontal position and the vertical position when the transverse side wall 10 is in the vertical position, and it is more favorable to be closer to the vertical position.

In the third stage, as the roof rises further, the lateral side wall 10 continues to move outward around the hinge axis L1. When the angle between the lateral side wall 10 and the ground is greater than the critical angle, as the angle between the lateral side wall 10 and the ground increases, the first fulcrum A1 of the first connecting rod 521 slides further and further away from the stop block 524 along the height direction of the lateral side wall 10 driven by the first slider, so that the first fulcrum A1 of the first connecting rod 521 gradually disengages from the stop block 524.

When the first fulcrum A1 of the first connecting rod 521 is in contact with the stop block 524, the lateral side wall 10 flips outward due to multiple forces. The multiple forces refer to the upward force of the roof, the contact force of the first fulcrum A1 of the first connecting rod 521 on the stop block 524, and the elastic force of the spring 523 that causes the angle between the first connecting rod 521 and the lateral side wall 10 connected thereto to tend to decrease.

When the first supporting point A1 of the first connecting rod 521 is disengaged from the stop block 524 , if the weight of the lateral side wall 10 is large, the lateral side wall may not be able to continue to flip outward, resulting in the lateral side wall being unable to be smoothly unfolded to the vertical position.

By providing the above-mentioned spring 523, when the first fulcrum A1 of the first connecting rod 521 is disengaged from the stop block 524, the elastic force of the spring 523 can be used to provide the lateral side wall 10 with a flipping force to flip to a vertical position, thereby compensating for the deficiency that the lateral side wall 10 is not easy to unfold to a vertical position simply by relying on the upward force of the roof.

In the fourth stage, when the horizontal side wall flips to the vertical position, the roof is at the preset height position. After the horizontal side wall flips to the vertical position, the roof can continue to rise to the highest position. During this period, the horizontal side wall basically remains in the vertical state and does not continue to flip outward. Similarly, during the storage process, the roof can drop from any position above the preset height position to the interference position (the interference position is lower than the preset height position). When it drops to the interference position, the first fulcrum A1 of the first connecting rod 521 contacts the stop block 524. During this period, the horizontal side wall basically remains in the vertical state and does not move inward. Flip.

That is to say, when the roof is raised or lowered within the range of the highest position and the interference position, the lateral side wall remains in a vertical state, so the user can adjust the height of the roof as needed while the lateral side wall remains in a vertical state. That is, within this position range, the raising or lowering of the roof is independent of the flipping of the side wall.

By utilizing the above features, when the roof is within the above position range, the lateral side wall outer panels 12 and the longitudinal side wall outer panels 22 are slid upward to the roof along the height direction (i.e. the vehicle house is in an enclosed state), and appropriate means are used to connect the lateral side wall outer panels 12 and the longitudinal side wall outer panels 22 to the roof in the vertical direction. At this time, the first lifting device 51 is driven to rise or fall, which will cause the lateral side wall outer panels 12 and the longitudinal side wall outer panels 22 to rise or fall simultaneously with the roof, i.e. the vehicle house is raised or lowered in an enclosed state. This is particularly helpful for reducing the windward area of the vehicle house and reducing the wind pressure of the vehicle house when camping in windy conditions.

In addition, after the lateral side wall is flipped to the vertical position, the force exerted by the roof on the first connecting rod 521 makes the lateral side wall connected thereto easily flip inward and cannot be stably maintained in the vertical position. By providing the above-mentioned spring 523, after the lateral side wall is flipped to the vertical position, the elastic force exerted by the spring 523 on the first connecting rod 521 can offset the force exerted by the roof on the first connecting rod 521, thereby enabling the side wall to be stably maintained in the vertical position.

In summary, with the above arrangement, when the roof just starts to rise from the lowest position, the side wall connected to the second lifting device basically remains in a horizontal state, thereby reducing the lifting force required when the roof just starts to rise, and when the roof is raised and lowered within the range of the highest position above the preset height position and the interference position below the preset height position, the side wall connected to the second lifting device basically remains in a vertical state, thereby avoiding the problem of the side wall flipping inwards when the roof just starts to descend from a position above the preset height position, resulting in a small adjustable range of the roof height. With this design, the roof can be lowered within a certain range. The side walls will not flip over when the roof is raised or lowered within a certain range. Therefore, the roof can be lowered when windy to ensure wind resistance.

Further, as shown in FIG10 , the second lifting device 52 may also include a second slider (not visible in the figure) and a second connecting rod 522. The second slider is slidably connected to a side wall (hereinafter, the transverse side wall 10 is used as an example for explanation, and in actual implementation, it may also be connected to the longitudinal side wall 20), and specifically, it may be connected to a slide groove of the outer frame of the transverse side wall 10, and the second slider can slide along the height direction of the transverse side wall 10.

The first fulcrum B1 of the second connecting rod 522 is hinged to the second slider and the hinge axis L6 is parallel to the hinge axis L1 of the horizontal side wall 10 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 L5 is parallel to the hinge axis L1 of the horizontal side wall 10 and the floor.

As shown in Figure 11, in the storage state, the first link 521 and the second link 522 are in a horizontal state. At this time, the third fulcrum A3 of the first link 521 is located inside the first fulcrum A1 of the first link 521, and the first fulcrum B1 of the second link 522 is located outside the first fulcrum A1 of the first link 521.

Since the hinge axis L5 of the second connecting rod 522 of the second lifting device and the hinge axis L6 of the first connecting rod 521 and the side wall are parallel to the hinge axis of the side wall and the floor, and the second connecting rod 522 has a certain rigidity, it 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 driven by the first lifting device, avoiding the problem of the roof being stuck and unable to be lifted due to the large swing amplitude of the roof.

Further, as shown in FIG11 , when the second link 522 is stored in a horizontal state, the first fulcrum B1 of the second link 522 is located outside the stop block 524. In other words, when the second link 522 is unfolded to a vertical state, the first fulcrum B1 of the second link 522 is located below the stop block 524. In this way, when the second link 522 slides to the highest position along the height direction of the side wall, it can contact the stop block 524. This can define the highest position of the roof.

Further, as shown in FIG15 , the second lifting device further includes a stopper 525, which is disposed on the first link 521 or the second link 522 or the transverse side wall 10, and is disposed on the second link 522 in the figure. When the angle θ between the first link 521 and the second link 522 reaches 180°, the first link 521 abuts against the stopper 525, and the stopper 525 prevents the angle θ between the first link 521 and the second link 522 from further increasing from 180°, and the stopper 525 prevents the transverse side wall 10 from further turning outward from the vertical position, that is, under the elastic force of the spring 523, the transverse side wall 10 will be pressed in the vertical position until the first fulcrum A1 of the first link 521 abuts against the stopper 524 from top to bottom and offsets the elastic force.

The above is a detailed introduction to the lifting mechanism of the retractable car house provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above 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 technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims (10)

1. A lifting mechanism for a storable vehicle room, characterized in that the lifting mechanism comprises a first lifting device (51) and a second lifting device (52); one of the first lifting device (51) and the second lifting device (52) is arranged on the longitudinal side of the storable vehicle room, and the other is arranged on the lateral side of the storable vehicle room, or both are arranged on the longitudinal side or the lateral side of the storable vehicle room; the first lifting device (51) is connected between the roof and the floor of the storable vehicle room, and is used to lift the roof; the second lifting device (52) is used to make the storable vehicle room The side wall of the vehicle storage room rotates relative to the floor as the roof rises and falls. 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 vehicle storage room and can slide along the height direction of the corresponding side wall. The first fulcrum 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 of the first connecting rod (521) is hinged to the roof of the vehicle storage room and the hinge axis is parallel to the hinge axis of the corresponding side wall and the floor.
2. The lifting mechanism of the storable vehicle house according to claim 1 is characterized in that one first lifting device (51) is arranged on each of the two longitudinal sides or the two lateral sides of the storable vehicle house, and two second lifting devices (52) are arranged on each of the other two sides of the storable vehicle house, and 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.
3. The lifting mechanism of the storable vehicle house according to claim 1 is characterized in that the second lifting device (52) includes a stop block (524), and when the first connecting rod (521) is stored in a state parallel to the floor, the second fulcrum of the first connecting rod (521) is located outside the first fulcrum of the first connecting rod (521), and the first fulcrum of the first connecting rod (521) is located inside the hinge axis of the side wall and the floor connected thereto, and the stop block (524) is located on the first connecting rod (521). Between the first fulcrum and the hinge axis of the side wall and floor connected to it.
4. The lifting mechanism of the foldable vehicle room according to claim 3 is 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 of the second connecting rod (522) is hinged to the second slider and the hinge axis is parallel to the hinge axis between the corresponding side wall and the floor, the second fulcrum 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 between the corresponding side wall and the floor; when the first connecting rod (521) and the second connecting rod (522) are stored in a state parallel to the floor, the third fulcrum (A3) of the first connecting rod (521) is located on the inner side of the first fulcrum of the first connecting rod (521), and the first fulcrum of the second connecting rod (522) is located on the outer side of the first fulcrum of the first connecting rod (521).
5. The lifting mechanism of the foldable vehicle house according to claim 4 is characterized in that the second lifting device (52) includes a spring (523), and the spring (523) is connected between the first connecting rod (521) and the second connecting rod (522), and under the elastic force of the spring (523), the angle between the first connecting rod (521) and the second connecting rod (522) tends to increase and the angle between the first connecting rod (521) and the side wall connected thereto tends to decrease.
6. The lifting mechanism for a foldable vehicle room according to claim 5 is characterized in that the second lifting device (52) includes a limiter (525), and the limiter (525) is arranged on the first connecting rod (521) or the second connecting rod (522) or the corresponding side wall. When the 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 limiter (525) to prevent the angle between the first connecting rod (521) and the second connecting rod (522) from continuing to increase. And prevent the corresponding side wall from continuing to flip outwards beyond the vertical state.
7. The lifting mechanism of the storable vehicle room according to any one of claims 1 to 6 is 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) sliding along the upper guide (512), and a lower sliding member (515) sliding along the lower guide (514), the upper guide (512) being connected to the roof (30) of the storable vehicle room, the lower guide (514) being connected to the floor (40) of the storable vehicle room, the upper end of the cross arm (511) being connected to the upper sliding member (513), and the lower end of the cross arm (511) being connected to the lower sliding member (515).
8. According to the lifting mechanism of the foldable vehicle house according to claim 7, it is characterized in that the cross arm (511) includes two support arms, the two support arms cross each other and are hinged at the crossing position by a hinge structure, each of the support arms includes two arm sections, one arm section is connected to the roof (30), and the other arm section is connected to the floor (40), and the two arm sections are detachably connected together.
9. The lifting mechanism for a foldable vehicle house according to claim 8 is characterized in that the two arm sections of the support arm are plugged together by a transition piece.
10. The lifting mechanism for a foldable vehicle house according to claim 8 is characterized in that the upper guide member (512) of the first lifting device includes two upper guide portions (512a), which are respectively used to guide the two upper sliding members (513) connected to the upper ends of the two support arms of the cross arm (511); when the vehicle house is in the unfolded state, the two upper guide portions (512a) of the upper guide member (512) are parallel or non-parallel to the lower guide member (514).