CN221068112U - Convenient folding frame and camping car - Google Patents

Abstract

The present application provides a folding-facilitating frame and a camping car, wherein the folding-facilitating frame is configured to be convertible between a folded state and an unfolded state, and comprises: a middle frame disposed in the middle of the frame; a first folding mechanism arranged on a side portion of the frame; and a second folding mechanism arranged at the bottom of the frame; the first folding mechanism is connected with the second folding mechanism through at least one folding linkage mechanism, so that the two folding mechanisms can be folded or unfolded stably and synchronously. According to the folding mechanism, the first folding mechanism and the second folding mechanism are connected through the folding linkage mechanism, so that the folding mechanism can be stably and synchronously folded or unfolded, the conversion stability of the frame between the folding state and the unfolding state is improved, the response is quick, and the use convenience is improved. The application also provides a camping car which comprises the frame, so that the camping car can move more stably when being folded and unfolded, and the use convenience of a user is improved.

Description

Convenient folding frame and camping car

Technical Field

The application relates to the technical field of push-pull vehicles, in particular to a convenient-to-fold frame and a camping vehicle.

Background

With the increasing abundance of life, outdoor camping is popular, with the increasing number of camping people, the variety of camping supplies is also increasing, and the more articles people carry in camping are, so that the carrying of articles is also one of the problems, and since most camps are private cars, the storage space is limited, and therefore the loading and unloading of articles is one of the main problems, and it is necessary that large articles such as camping cars can be folded. However, the existing camping car has the technical problems of complex folding and inconvenient use.

For example, chinese patent publication No. CN209938658U and publication No. 2020-01-14 disclose a chassis for a folding vehicle, which includes a floating member and a plurality of linking members, where the floating member and each linking member are rotationally connected, each linking member includes an extension tab, each extension tab is respectively connected with each vertical supporting mechanism of the folding vehicle in a one-to-one correspondence manner, and the floating member moves up and down to drive all linking members to gather or scatter. The folding mode of the camping car is gathering type, folding is realized only by dragging the floating piece, the folding action of the whole camping car is not stable enough, the actions among the vertical supporting mechanisms are not synchronous, the size of the cabin of the camping car cannot be adjusted according to the use condition, such as full cabin opening, half cabin opening and the like, and the folding mode of gathering type cannot meet the requirements of different use scenes.

In view of this, the present inventors filed a portable carrying vehicle, camping car and folding frame on the same day to solve the above problems, and found that the folding frame in the patent filed on the same day has a side folding mechanism and a bottom folding mechanism, the movements of the two folding mechanisms are not synchronous when folding and unfolding, and the two folding mechanisms are required to be operated by the user respectively during the use process, which brings great inconvenience to the user, so the present inventors further studied and improved the frame, and provided a frame which can enable the bottom folding mechanism and the side folding mechanism to fold and unfold synchronously and facilitate the user operation, so as to perfect the patent layout of the present application.

Disclosure of utility model

The application provides a frame convenient to fold and a camping car, wherein a side folding mechanism and a bottom folding mechanism can be stably and synchronously folded and unfolded by virtue of a folding linkage mechanism, so that the stability of the frame during folding and unfolding is improved, and the convenience of user operation is greatly improved.

The application adopts the following technical scheme:

The present application provides a conveniently foldable vehicle frame configured to be convertible between a folded state and an unfolded state, comprising:

A middle frame disposed in the middle of the frame;

A first folding mechanism arranged on a side portion of the frame; and

The second folding mechanism is arranged at the bottom of the frame;

The first folding mechanism is connected with the second folding mechanism through at least one folding linkage mechanism, so that the two folding mechanisms can be folded or unfolded stably and synchronously.

Further, the folding linkage mechanism includes:

A first link pivotally connected to the first folding mechanism;

a second link pivotally connected to the second folding mechanism; and

A third link pivotally connected between the first and second links to transfer motion between the first and second links.

Further, the folding linkage is configured on the middle frame.

Further, the first link is configured to rotate about a first pivot axis and the second link is configured to rotate about a second pivot axis, the first pivot axis and the second pivot axis being perpendicular to each other.

Further, the first pivot is adapted to connect the first link and the third link, and the second pivot is adapted to connect the second link and the third link.

Further, the first link is configured to rotate about a first pivot within a first angular range configured to synchronously drive movement of the third link during rotation of the first link;

The second link being configured to rotate about a second pivot within a second angular range, the second angular range being configured to synchronously drive movement of the third link during rotation of the second link;

Wherein when the third link is not moved, both the first link and the second link are restricted from rotating.

Further, the first angle is an included angle between the axial directions of the first connecting rod and the third connecting rod, and the first angle range is 0-45 degrees;

the second angle is an included angle between the axial directions of the second connecting rod and the third connecting rod, and the second angle range is 0-90 degrees.

Further, the third link further includes a tilt section for pivotally connecting with the second link, the tilt section being configured to be in-line with the second link in the deployed state.

Further, the bottom of the middle frame has a slide seat for positioning the third link and allowing the third link to move in the axial direction thereof.

Further, the middle frame includes side uprights and a bottom beam, and the slide mount is coupled to the bottom beam.

Further, the first folding mechanism comprises two lateral hinges which are oppositely arranged along the frame direction, and the lateral hinges are provided with first pivoting parts which are pivotally connected with the first connecting rods.

Further, the second folding mechanism comprises a bottom hinge extending along the length direction of the frame, and the bottom hinge is provided with a second pivoting part pivotally connected with the second connecting rod.

The application provides a camping vehicle which comprises a vehicle frame, wherein the vehicle frame is the vehicle frame.

By adopting the technical scheme, the application has the following technical effects:

The application provides a convenient-to-fold vehicle frame, which comprises a middle frame, a first folding mechanism and a second folding mechanism, wherein the first folding mechanism is connected with the second folding mechanism through at least one folding linkage mechanism, so that the two folding mechanisms can be stably and synchronously folded or unfolded, the conversion stability of the vehicle frame between a folding state and an unfolding state is improved, and the folding linkage mechanism is used for realizing the folding state and the unfolding state of the whole vehicle frame only by pushing the first folding mechanism to fold and unfold when the vehicle frame is converted, so that the convenience of a user is improved.

The application also provides a camping vehicle which comprises the frame, is simpler and more convenient to operate when being folded and unfolded, has more stable conversion process and improves the convenience of users.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following brief description of the drawings of the embodiments will make it apparent that the drawings in the following description relate only to some embodiments of the present application and are not limiting of the present application.

FIG. 1 is a schematic view of the frame in its fully extended state.

Fig. 2 is a schematic view of the structure of the half-unfolded state of the frame in the present application.

Fig. 3 is a schematic view showing a folded state of a frame in the present application.

Fig. 4 is a front view of the frame in its fully extended state in accordance with the present application.

Fig. 5 is a top view of the fully extended frame of the present application.

Fig. 6 is an exploded view of the lateral hinge of the present application.

Fig. 7 is a schematic view of the axial lock structure of the lateral hinge in the application.

Fig. 8 is a diagram of the connection of the side hinge, bottom hinge and folding linkage in the present application.

Fig. 9 is a plan view of the half-deployed state of the frame in the present application.

Fig. 10 is an enlarged view at a in fig. 9.

Fig. 11 is a side view of the present application in a folded condition of the frame.

Fig. 12 is an enlarged view at B1 in fig. 11.

Fig. 13 is a side view of the vehicle frame of the present application in an expanded state.

Fig. 14 is an enlarged view at B2 in fig. 13.

Fig. 15 is another view of the present application in a semi-extended condition of the frame.

Fig. 16 is an enlarged view at C in fig. 15.

Reference numerals illustrate: 1-a first frame; 2-a second frame; 3-a middle frame; 31-side posts; 32-bottom beams; 40-a first folding mechanism; 41-lateral hinges; 411-a first folding arm; 412-a second folding arm; 413-a movable pin; 414-a return spring; 415-snap-fit lugs; 416-a clamping groove; 50-a second folding mechanism; 51-bottom hinge; 511-a third folding arm; 512-fourth folding arm; 513-limiting blocks; 514-pivoting rack; 60-folding linkage mechanism; 61-a first link; 62-a second link; 63-a third link; 63 a-an inclined section; q1-a storage cavity; 100-frame; a-a first angle; b-a second angle.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the present application will be described in further detail with reference to the accompanying drawings. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Unless defined otherwise, technical or scientific terms used in this patent document should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a," "an," or "the" and similar terms do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used merely to denote relative positional relationships, which may be changed accordingly when the absolute position of the object being described is changed, merely to facilitate description of the present application and to simplify description, and not to indicate or imply that the apparatus or elements being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. Features of the embodiments described below may be combined with each other without conflict.

Referring to fig. 1 to 16, the present application relates to a foldable bicycle frame 100 configured to be convertible between a folded state and an unfolded state, having a first rim 1, a middle frame 3, and a second rim 2 arranged in this order along a length direction thereof: a first folding structure and a second folding structure 50 are arranged between the first side frame 1, the second side frame 2 and the middle frame 3; the first folding mechanism 40 is disposed on a side portion of the frame 100; the second folding mechanism 50 is disposed at the bottom of the frame 100; in addition, the first folding mechanism 40 is connected with the second folding mechanism 50 via at least one folding linkage mechanism 60, so that the two folding mechanisms can be stably and synchronously folded or unfolded, and when the frame 100 is switched between the folded state or the unfolded state, the frame 100 can be folded or unfolded only by rotating the first folding mechanism 40, so that the operation steps of a user are simplified, and the operation convenience is improved.

In this embodiment, the first folding mechanism 40 and the second folding mechanism 50 form a group of linkage folding mechanisms through the folding linkage mechanism 60, and the linkage folding mechanisms are symmetrically arranged in two groups with respect to the middle frame 3, wherein one group is used for connecting the first side frame 1 and the middle frame 3, and the other group is used for connecting the second side frame 2 and the middle frame 3, by adopting the above structural design, the first side frame 1 and the second side frame 2 can be respectively folded and unfolded independently with respect to the middle frame 3, so that the first side frame 1 and the second side frame 2 can be converted among a full cabin form, a half cabin form and a folding form, and in particular, as shown in fig. 1-3, a complete storage cavity Q1, namely, a full cabin form can be formed when the first side frame 1 and the second side frame 2 are fully unfolded; when one of the frames is folded and the other is unfolded, a half-storage cavity Q1, namely a half-cabin form, is formed; when the first frame 1 and the second frame 2 are folded at the same time, the frame is in a storage state; the use convenience of the product is obviously improved.

A group of linkage folding mechanisms between the first side frame 1 and the middle frame 3 will now be described, specifically as follows:

Referring to fig. 8-16, the folding linkage 60 includes a first link 61, a third link 63, and a second link 62 connected in sequence; wherein a first link 61 is pivoted to the first folding mechanism 40, a second link 62 is pivoted to the second folding mechanism 50, and a third link 63 is pivoted between said first and second links 61, 62 to transfer motion between said first and second links 61, 62; specifically, the first link 61 is configured to rotate about a first pivot, the first pivot is adapted to connect the first link 61 and the third link 63, the second link 62 is configured to rotate about a second pivot, the second pivot is adapted to connect the second link 62 and the third link 63, and the first pivot and the second pivot are perpendicular to each other, which causes the first link 61 to rotate left and right in a horizontal plane, and the second link 62 to rotate up and down in a vertical plane.

Upon transmission of motion, the first link 61 is configured to rotate about a first pivot within a first angular range a configured to synchronously drive movement of the third link 63 during rotation of the first link 61; the second link 62 is configured to rotate about a second pivot within a second range of angles B configured to synchronously drive the movement of the third link 63 during rotation of the second link 62; when the third link 63 is not moved, both the first link 61 and the second link 62 are restricted from rotating.

Referring to fig. 9-10, the first angle a is an included angle between the axial directions of the first link 61 and the third link 63, and the first angle a ranges from 0 degrees to 45 degrees; referring to fig. 11-14, the second angle B is an included angle between the second connecting rod 62 and the third connecting rod 63 in the axial direction, and the second angle B ranges from 0 degrees to 90 degrees; the first link 61 and the second link 62 both rotate within a set angular range during movement, thereby having an effect of defining the turning angles of the first folding mechanism 40 and the second folding mechanism 50, and the first folding mechanism 40 and the second folding mechanism 50 can be stably and synchronously folded and unfolded under the linkage action of the folding linkage mechanism 60, so that the frame 100 can be more stably converted between the folded state and the unfolded state.

In addition, the third link 63 further includes an inclined section 63a for pivotally connecting with the second link 62, and the inclined section 63a is configured to be in the same line with the second link 62 in the unfolded state, as shown in fig. 12-13, so that when the frame 100 is in the unfolded state, the movement of the third link 63 can be limited, and thus the movement of the first link 61 can be limited, so that the first folding mechanism 40 and the second folding mechanism 50 are kept at the unfolded position, and the two folding mechanisms are prevented from continuing to turn outwards, and similarly, the first folding mechanism 40 and the second folding mechanism 50 can be kept at the folded position during folding, so that the frame 100 can be converted between the unfolded state and the folded state more efficiently and stably, and the operation is more convenient and faster.

The folding linkage 60 is arranged on the middle frame 3 and the first side frame 1, wherein the bottom of the middle frame 3 is provided with a sliding seat for positioning the third connecting rod 63 and allowing the third connecting rod 63 to move along the axial direction of the third connecting rod 63, so that the movement of the third connecting rod 63 is more stable, and in particular, the middle frame 3 comprises a side upright 31 and a bottom beam 32, and the sliding seat is combined to the bottom beam 32. The bottom structure of the first side frame 1 is similar to the bottom beam 32 of the middle frame 3, and each has a sliding seat for positioning the third link 63 and allowing the third link 63 to move along the axial direction thereof, so that the folding linkage 60 can stably move.

The first folding mechanism 40 comprises two lateral hinges 41 oppositely arranged along the direction of the frame 100, the lateral hinges 41 comprise a first folding arm 411 and a second folding arm 412 which are mutually pivotally connected, wherein the first folding arm 411 is pivotally connected to the first frame 1; a second folding arm 412 is pivotally connected to the central frame 3; the first folding arm 411 and the second folding arm 412 are respectively provided with a first pivoting portion pivotally connected to a first link 61.

Referring to fig. 6 to 7, an axle lock structure is further disposed between the first folding arm 411 and the second folding arm 412, and the axle lock structure can keep the first folding arm 411 and the second folding arm 412 in an unfolded state, so that the first folding arm 411 and the second folding arm 412 are prevented from being folded inwards when receiving an external force, and stability of the foldable bicycle frame 100 is improved. Specifically, the axial lock structure includes a movable pin 413 capable of moving up and down, and a return spring 414 sleeved on the movable pin 413, and a locking projection 415 is provided on the movable pin 413. Corresponding to the clamping convex blocks 415, the first folding arm 411 and the second folding arm 412 are provided with clamping grooves 416, and in the unfolded state, the clamping convex blocks 415 are embedded into the two clamping grooves 416 to realize clamping, so that the overturning of the first folding arm 411 and the second folding arm 412 is limited. When the user pushes the movable pin 413 to disengage from the locking groove 416, the first folding arm 411 and the second folding arm 412 are released, and folding can be performed.

Referring to fig. 1 and 5, the second folding mechanism 50 includes a bottom hinge 51 extending along the length direction of the frame 100, the bottom hinge 51 includes a third folding arm 511 and a fourth folding arm 512 pivotally connected to each other, wherein the third folding arm 511 is pivotally connected to the first side frame 1, and the fourth folding arm 512 is pivotally connected to the middle frame 3; in this embodiment, the third folding arm 511 and the fourth folding arm 512 are both pivotally connected to a pivot frame 514, the pivot frame 514 is slidably disposed on the middle frame 3 or the first frame 1 up and down, the pivot frame 514 is provided with a second pivot portion pivotally connected to the second link 62, and the second link 62 can drive the pivot frame 514 to move up and down when rotating in the vertical direction, so as to cause the third folding arm 511 and the fourth folding arm 512 to turn over for folding and unfolding, thereby responding to the turning action of the lateral hinge 41.

The third folding arm 511 and the fourth folding arm 512 are pivotally connected by a pin, and the third folding arm 511 is pivotally connected to the first rim 1 by another pin, while the fourth folding arm 512 is pivotally connected to the middle frame 3 by a pin. When folding, the third folding arm 511 turns over towards the inner side of the storage cavity Q1 relative to the first frame 1, and the fourth folding arm 512 turns over towards the inner side of the storage cavity Q1 relative to the middle frame 3; in addition, a limiting block 513 is further disposed at the connection position of the third folding arm 511 and the fourth folding arm 512, the limiting block 513 can limit the third folding arm 511 and the fourth folding arm 512 to further turn over to the outer side of the first storage cavity Q1 in the unfolded state, the limiting block 513 is combined on the middle pivot, and two sides of the limiting block are provided with resisting parts for limiting the third folding arm 511 and the fourth folding arm 512 to further turn down; referring to fig. 4, the third folding arm 511 and the fourth folding arm 512 can be kept in a horizontal state in an unfolded state, but still have a certain included angle therebetween, so that the bottom hinge 51 can respond to the action of the folding linkage mechanism 60 better, and the bottom hinge 51 can fold and unfold synchronously with the lateral hinge 41.

In order to enable the first folding mechanism 40 and the second folding mechanism 50 to fold and unfold more stably and synchronously, four folding linkage mechanisms 60 are arranged between the lateral hinge 41 and the bottom hinge 51 in the embodiment, the four folding linkage mechanisms 60 are respectively and symmetrically arranged at two sides of the bottom hinge 51, through adopting above-mentioned structural design for can both be steadily synchronous folding and expansion between even side direction hinge 41 and the bottom hinge 51, when using, the user only need the upset of operation side direction hinge 41 alright light realization whole car fold and expand, improved the convenience of operation.

The principle of operation of the frame 100 is as follows:

When it is desired to deploy the frame 100, the user can pull the lateral hinges 41 to flip outwards: when the lateral hinge 41 is turned and unfolded outwards, the first connecting rod 61 is driven to rotate around the first pivot and pull the third connecting rod 63 to move along the width direction of the frame 100, then the third connecting rod 63 is driven to rotate around the second pivot while moving outwards, a downward pulling force is generated, so that the pivoting frames 514 of the bottom hinge 51 are pulled to move downwards, and in the downward moving process, the positions of the pivoting frames 514 on two sides, the third folding arm 511 and the fourth folding arm 512 are changed, so that the third folding arm 511 and the fourth folding arm 512 are turned and unfolded to two sides, and the bottom hinge 51 and the lateral hinge 41 are synchronously unfolded, and the unfolding action of the frame 100 is completed;

the folding principle of operation of the frame 100 is as follows:

When the folding frame 100 is required, the user can release the locking state of the axle center lock structure and push the lateral hinge 41 inwards to turn over. When the lateral hinge 41 is turned and folded into the frame 100, the first link 61 is turned around the first pivot axis by the pushing force of the lateral hinge 41, and pushes the third link 63 to move, when the third link 63 moves in the middle direction of the frame 100 in the width direction, the second link 62 can be pushed to rotate around the second pivot, at this time, the second link 62 generates an upward pushing force to push the pivot frame 514 of the bottom hinge 51 to move upward, and the pivot frame 514 moves upward, and simultaneously, the third folding arm 511 and the fourth folding arm 512 are turned and folded upward around the pivot frame 514 respectively, so that the bottom hinge 51 and the lateral hinge 41 are folded synchronously, the folding action of the frame 100 is completed, the whole action is smooth, and the use is more convenient.

The movement state between the second side frame 2 and the middle frame 3 is the same as the structure and movement state of the first side frame 1, and the description thereof will not be repeated.

The application also provides a camping car, which is provided with the frame 100 convenient to fold, so that a user can conveniently operate the camping car when folding and unfolding the camping car.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (13)

1. A conveniently foldable frame configured to be convertible between a folded state and an unfolded state, comprising:

A middle frame disposed in the middle of the frame;

A first folding mechanism arranged on a side portion of the frame; and

The second folding mechanism is arranged at the bottom of the frame;

The first folding mechanism is connected with the second folding mechanism through at least one folding linkage mechanism, so that the two folding mechanisms can be folded or unfolded stably and synchronously.

2. The frame of claim 1, wherein the folding linkage comprises:

A first link pivotally connected to the first folding mechanism;

a second link pivotally connected to the second folding mechanism; and

A third link pivotally connected between the first and second links to transfer motion between the first and second links.

3. The vehicle frame of claim 2, wherein the folding linkage is disposed on the center frame.

4. A vehicle frame as claimed in claim 2 or claim 3, wherein the first link is arranged to pivot about a first pivot axis and the second link is arranged to pivot about a second pivot axis, the first pivot axis and the second pivot axis being perpendicular to each other.

5. The vehicle frame of claim 4, wherein the first pivot is adapted to connect the first link and the third link and the second pivot is adapted to connect the second link and the third link.

6. The frame of claim 5, wherein the frame comprises a plurality of wheels,

The first link being configured to rotate about a first pivot within a first angular range, the first angular range being configured to synchronously drive movement of the third link during rotation of the first link;

The second link being configured to rotate about a second pivot within a second angular range, the second angular range being configured to synchronously drive movement of the third link during rotation of the second link;

Wherein when the third link is not moved, both the first link and the second link are restricted from rotating.

7. The frame of claim 6, wherein the frame comprises a plurality of wheels,

The first angle is an included angle between the axial directions of the first connecting rod and the third connecting rod, and the first angle range is 0-45 degrees;

the second angle is an included angle between the axial directions of the second connecting rod and the third connecting rod, and the second angle range is 0-90 degrees.

8. The vehicle frame of claim 6, wherein the third link further comprises a tilt section for pivotally connecting with the second link, the tilt section being configured to be in alignment with the second link in the deployed state.

9. A carriage as claimed in claim 2 or claim 3, wherein the bottom of the intermediate frame has a slide seat for locating the third link and allowing movement of the third link in the direction of its axis.

10. The vehicle frame of claim 9, wherein the center frame includes side uprights and a bottom rail, the slide mount being coupled to the bottom rail.

11. The frame of claim 2, wherein the first folding mechanism comprises two lateral hinges disposed opposite in the frame direction, the lateral hinges having a first pivot portion pivotally connected to the first link.

12. The frame of claim 2, wherein the second folding mechanism includes a bottom hinge extending along a length of the frame, the bottom hinge having a second pivot portion pivotally connected to the second link.

13. A camping car comprising a frame, wherein the frame is as claimed in any one of claims 1 to 12.