CN216783363U

CN216783363U - Foldable extension device of car as a house

Info

Publication number: CN216783363U
Application number: CN202220442828.2U
Authority: CN
Inventors: 冯旭隆; 冯满全; 毕永晶; 王文康
Original assignee: Shandong Safiros Rv Co ltd
Current assignee: Shandong Safiros Rv Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-21
Anticipated expiration: 2032-03-02

Abstract

The utility model discloses a folding type expansion device for a caravan, which comprises an expansion box, wherein the caravan is provided with an opening, the expansion box comprises an upper side plate, a lower side plate, a left side plate, a right side plate and an end plate, when the expansion box is expanded, the upper side plate, the lower side plate, the left side plate and the right side plate are folded outwards towards the opening, the bottom ends of the left side plate, the right side plate and the end plate are tightly matched with the lower side plate, and the top ends of the left side plate, the right side plate and the end plate are tightly matched with the upper side plate; when the expansion box is folded, the upper side plate, the lower side plate, the left side plate, the right side plate and the end face plate are turned over towards the opening and cover the opening. The folding expansion device of the caravan can fully utilize the folding expansion space, the space utilization rate of the caravan can be greatly improved under the expansion state of the expansion box, the internal space of the caravan is not occupied under the folding state, the expansion box is stable in structure, can bear heavy objects, is tight in sealing and convenient to use, and the built-in locking mechanism can effectively prevent external invasion.

Description

Foldable extension device of car as a house

Technical Field

The utility model relates to the technical field of caravans, in particular to a foldable expansion device of a caravan.

Background

With the improvement of science and technology and the improvement of living standard of people, the psychological needs and consumption modes of people are changed, and more people tend to adopt tourism for vacation. The touring car not only can provide free, personalized and knowledgeable tourism experience, but also can enable people to have a longitudinal feeling of mountain and water and have freedom to leave on vacation under the condition of no pressure. The convenience of the motor home is not limited by conditions such as external traffic, accommodation, catering and the like, and the problems of traffic, accommodation, catering and the like in the journey can be comprehensively solved. Car as a house economical and practical can practice thrift the expense of lodging and food and beverage on the journey by a wide margin, and the car as a house that removes moreover, and bed, kitchen, guest room, washroom are all good, and the user can use the articles for daily use of oneself custom, no matter play where all have a sensation of being at.

Among the prior art, the carriage of some car as a house sets to fixed dimension usually, and the space in carriage receives the restriction, and people's activity space in the car as a house carriage is less, and user experience effect is poor. Therefore, expandable carriages are designed, and the carriages are expanded outwards to enlarge the use space of the carriages. However, the existing caravan compartment has the disadvantages of complex expansion structure, low compartment space utilization rate, weak structural strength, poor sealing property, numerous locks and incapability of effectively preventing invasion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a folding type expansion device for a motor home, which solves the problems that the expansion structure of the motor home is complex and the space utilization rate of the motor home is low in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: a folding expansion device for a caravan comprises an expansion box, wherein an opening is formed in the caravan, the expansion box comprises an upper side plate, a lower side plate, a left side plate, a right side plate and an end plate, one end of the upper side plate, one end of the lower side plate, one end of the left side plate and one end of the right side plate are respectively rotatably arranged on the upper side, the lower side, the left side and the right side of the opening, when the expansion box is expanded, the upper side plate, the lower side plate, the left side plate and the right side plate are folded outwards towards the opening, the bottom ends of the left side plate, the right side plate and the end plate are tightly matched with the lower side plate, and the top ends of the left side plate, the right side plate and the end plate are tightly matched with the upper side plate; when the expansion box is folded, the upper side plate, the lower side plate, the left side plate, the right side plate and the end plates are turned towards the inside of the opening and cover the opening.

As an optional mode of the above technical solution, the right side plate is provided with an expansion opening, and the expansion opening is provided with a turnover plate.

As an optional mode of the technical scheme, the bottom end of the turnover plate is rotatably connected with the bottom end of the expansion port, and a fixing mechanism is arranged between the top end of the turnover plate and the expansion port; the fixing mechanism comprises a fixing piece and a fixing buckle, the fixing piece is rotatably arranged on the right side plate, the fixing buckle is arranged on the turnover plate, and the turnover plate and the right side plate are fixed through the fixing piece and the fixing buckle.

As an alternative to the above technical solution, the edge of the expansion opening is provided with a U-shaped torsion spring, and the torsion spring is used for structural support of the tent.

As an optional mode of the above technical solution, the roll-over plate is provided with a position locking mechanism; the position locking mechanism comprises a first locking arm and a second locking arm, one end of the first locking arm is rotatably connected with the right side plate, the other end of the first locking arm is rotatably arranged on the second locking arm, and a locking groove is formed in the first locking arm; one end of the second locking arm is rotatably connected with the turnover plate, and the other end of the second locking arm is provided with a locking block matched with the locking groove.

As an optional mode of the above technical scheme, the side wall of the right side plate is provided with a first locking seat, one end of the first locking arm is rotatably mounted on the first locking seat, the side wall of the turnover plate is provided with a second locking seat, and one end of the second locking arm is rotatably mounted on the second locking seat.

As an optional mode of the above technical solution, the bottom end of the end plate is rotatably connected to the lower side plate, and a locking mechanism is provided between the top end of the end plate and the upper side plate.

As an optional mode of the technical scheme, the locking mechanism comprises a locking piece and a lock catch, the locking piece is rotatably arranged on the end face plate, the lock catch is arranged on the upper side plate, and the end face plate and the upper side plate are locked through the locking piece and the lock catch.

As an optional mode of the above technical solution, the bottom ends of the left side plate and the right side plate are both provided with a support flange, and when the expansion box is expanded, the support flanges of the left side plate and the right side plate support the left end and the right end of the lower side plate; the tip of left side board and right side board is equipped with spacing limit, and when the expansion box extension, the spacing limit of left side board and right side board is spacing to the terminal plate.

As an optional mode of the technical scheme, the bottom end of the lower side plate is provided with a plurality of reinforcing ribs, and the end plate is provided with a window.

The utility model has the beneficial effects that:

the utility model provides a folding type expansion device for a caravan, wherein when an expansion box is expanded, an upper side plate, a lower side plate, a left side plate and a right side plate are folded outwards towards an opening, the bottom ends of the left side plate, the right side plate and an end plate are tightly matched with the lower side plate, and the top ends of the left side plate, the right side plate and the end plate are tightly matched with the upper side plate; when the expansion box is folded, the upper side plate, the lower side plate, the left side plate, the right side plate and the end face plate are turned over towards the opening and cover the opening. The folding expansion device of the caravan can fully utilize the folding expansion space, the space utilization rate of the caravan can be greatly improved under the expansion state of the expansion box, the internal space of the caravan is not occupied under the folding state, the expansion box is stable in structure, can bear heavy objects, is tight in sealing and convenient to use, and the built-in locking mechanism can effectively prevent external invasion.

Drawings

FIG. 1 is a schematic diagram of a first view of an expansion cabinet in accordance with an embodiment of the present invention;

FIG. 2 is a schematic diagram of a second view of the expansion cabinet in an embodiment of the present invention;

FIG. 3 is a schematic illustration of the folded expansion cabinet of an embodiment of the present invention;

fig. 4 is a schematic structural view of the right side plate in the embodiment of the present invention.

In the figure: 1-upper side plate; 2-lower side plate; 3-left side plate; 4-right side plate; 5-end panels; 6-an expansion port; 7-turning over the board; 8-fixing pieces; 9-fixing the button; 10-a torsion spring; 11-a first locking arm; 12-a second locking arm; 13-a locking groove; 14-a locking block; 15-a first locking seat; 16-a second locking seat; 17-a locking mechanism; 18-reinforcing ribs; 19-a window; 20-fixing frame.

Detailed Description

Examples

As shown in fig. 1 to 4, the present embodiment provides a foldable extension device for a caravan, which includes an extension box, wherein an opening is formed in a compartment of the caravan, the extension box can be extended to the outside of the compartment through the opening, and the extension box can also be folded to the inside of the compartment through the opening. The expansion box is usually rectangular, and correspondingly, the opening of the carriage is also rectangular, and a fixing frame 20 is arranged at the opening of the carriage, so that the expansion box is convenient to install.

As shown in fig. 1, 2 and 3, the expansion box includes an upper side plate 1, a lower side plate 2, a left side plate 3, a right side plate 4 and an end plate 5, the upper side plate 1, the lower side plate 2, the left side plate 3 and the right side plate 4 are arranged around the opening, and one end of the upper side plate 1, the lower side plate 2, the left side plate 3 and the right side plate 4 is respectively and rotatably arranged at the upper side, the lower side, the left side and the right side of the opening, when the expansion box is expanded, the upper side plate 1, the lower side plate 2, the left side plate 3 and the right side plate 4 are folded outwards for 90 degrees, the bottom ends of the left side plate 3, the right side plate 4 and the end plate 5 are tightly matched with the lower side plate 2, the top ends of the left side plate 3, the right side plate 4 and the end plate 5 are tightly matched with the upper side plate 1, and the expansion box forms a cavity structure communicated with the opening, thereby realizing the expansion function of the car as a house; when the extension box is folded, the upper side panel 1, lower side panel 2, left side panel 3, right side panel 4 and end panels 5 are folded 90 degrees inward toward the opening and cover and close the opening. This extension case is attached to on the opening in carriage and seals the opening after folding, can effectively prevent outside invasion, does not occupy car as a house inner space after the extension case is folding moreover, and the space after the extension is great, and its space utilization that can improve the car as a house greatly.

As shown in fig. 4, in the present embodiment, the right side plate 4 is opened with an expansion opening 6, and a flap plate 7 is disposed on the expansion opening 6. This expansion mouth 6 can realize the secondary extension of car as a house, further improves the space utilization of car as a house. Specifically, the bottom end of the turnover plate 7 is rotatably connected with the bottom end of the expansion port 6, and a fixing mechanism is arranged between the top end of the turnover plate 7 and the expansion port 6. After the turnover plate 7 is turned over for 90 degrees upwards, the turnover plate 7 is fixed through a fixing mechanism, so that the expansion opening 6 is sealed by the turnover plate 7. After the turnover plate 7 is loosened through the fixing mechanism, the turnover plate 7 is turned over for 90 degrees downwards, and the turnover plate 7 can be communicated with the lower side plate 2 to form a large plane, so that the use space of the caravan is improved.

As an optional implementation manner of this embodiment, the fixing mechanism includes a fixing plate 8 and a fixing buckle 9, the fixing plate 8 is rotatably disposed on the right side plate 4, the fixing buckle 9 is disposed on the flip plate 7, and the flip plate 7 and the right side plate 4 are fixed by the fixing plate 8 and the fixing buckle 9. After the turnover plate 7 is turned over for 90 degrees upwards, the fixing piece 8 is rotated to enable the fixing piece 8 and the fixing buckle 9 to be tightly clamped, and then the turnover plate 7 can be fixed. The fixing piece 8 is rotated in the opposite direction, so that the fixing piece 8 is separated from the fixing buckle 9, and the turnover plate 7 can be loosened to realize the secondary expansion function of the caravan. Wherein, the edge of the expansion opening 6 is provided with a U-shaped torsion spring 10, and the torsion spring 10 can be used as a supporting structure of the tent. When the turnover plate 7 closes the expansion opening 6, the turnover plate 7 can press the torsion spring 10 to be tightly attached to the surface of the right side plate 4.

As shown in fig. 4, in the present embodiment, the flipping panel 7 is provided with a position locking mechanism; the position locking mechanism comprises a first locking arm 11 and a second locking arm 12, one end of the first locking arm 11 is rotatably connected with the right side plate 4, the other end of the first locking arm 11 is rotatably arranged on the second locking arm 12, and a locking groove 13 is formed in the first locking arm 11; one end of the second locking arm 12 is rotatably connected with the turnover plate 7, and the other end of the second locking arm 12 is provided with a locking block 14 matched with the locking groove 13. When the turnover plate 7 is turned downwards by 90 degrees, the turnover plate 7 is communicated with the lower side plate 2 to form a large plane, the first locking arm 11 and the second locking arm 12 form a straight line, and meanwhile, the locking groove 13 of the second locking arm 12 is embedded into the locking groove 13 of the first locking arm 11, so that the locking function of the turnover plate 7 is realized.

The lateral wall of right side board 4 is equipped with first locking seat 15, the one end of first locking arm 11 is rotated and is installed on first locking seat 15, and the lateral wall of returning face plate 7 is equipped with second locking seat 16, the one end of second locking arm 12 is rotated and is installed on second locking seat 16. This structural design is reasonable, is convenient for lock the returning face plate 7, and returning face plate 7 structure is firm, and returning face plate 7 can bear all kinds of article equipment, can improve car as a house space utilization by a wide margin.

In this embodiment, the bottom end of the end plate 5 is rotatably connected to the lower plate 2, and a locking mechanism 17 is provided between the top end of the end plate 5 and the upper plate 1, thereby ensuring structural stability after the extension box is extended. Specifically, locking mechanism 17 includes stay and hasp, the stay rotates and sets up on end panel 5, the hasp sets up on upper ledge 1, through the effect locking of stay and hasp between end panel 5 and the upper ledge 1.

As shown in fig. 1, in the present embodiment, the bottom ends of the left side plate 3 and the right side plate 4 are both provided with a support flange, and when the expansion box is expanded, the support flanges of the left side plate 3 and the right side plate 4 support the left end and the right end of the lower side plate 2; the tip of left side board 3 and right side board 4 is equipped with spacing limit, and when the extension case extension, the spacing limit of left side board 3 and right side board 4 is spacing to terminal plate 5, can further expand the structural stability after the case extension.

The bottom of lower plate 2 is equipped with a plurality of strengthening ribs 18, and strengthening rib 18 is "nearly" font, is provided with two usually, can improve expansion box's bearing capacity, be equipped with window 19 on the end panel 5.

In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood broadly and may be fixedly connected, detachably connected, or integrated; may be a mechanical or electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. Those skilled in the art will understand the specific meaning of the above terms in the present invention. Furthermore, the particular features, structures, etc. described in the examples can be included in at least one implementation and can be combined by one skilled in the art without conflicting therewith. The protection scope of the present invention is not limited to the above specific examples, and embodiments that can be imagined by those skilled in the art without creative efforts based on the basic technical concept of the present invention belong to the protection scope of the present invention.

Claims

1. The foldable expansion device for the caravan is characterized by comprising an expansion box, wherein the caravan is provided with an opening, the expansion box comprises an upper side plate (1), a lower side plate (2), a left side plate (3), a right side plate (4) and an end plate (5), one end of the upper side plate (1), the lower side plate (2), the left side plate (3) and the right side plate (4) is respectively and rotatably arranged on the upper side, the lower side, the left side and the right side of the opening, when the expansion box is expanded, the upper side plate (1), the lower side plate (2), the left side plate (3) and the right side plate (4) are folded outwards from the opening, the bottom ends of the left side plate (3), the right side plate (4) and the end plate (5) are tightly matched with the lower side plate (2), and the top ends of the left side plate (3), the right side plate (4) and the end plate (5) are tightly matched with the upper side plate (1); when the expansion box is folded, the upper side plate (1), the lower side plate (2), the left side plate (3), the right side plate (4) and the end plate (5) are turned over towards the opening and cover the opening.

2. The foldable extension device for caravans according to claim 1, characterized in that the right side plate (4) is provided with an extension opening (6), and the extension opening (6) is provided with a turning plate (7).

3. The folding type expansion device of the caravan, as claimed in claim 2, wherein the bottom end of the turnover plate (7) is rotatably connected with the bottom end of the expansion opening (6), and a fixing mechanism is arranged between the top end of the turnover plate (7) and the expansion opening (6); the fixing mechanism comprises a fixing sheet (8) and a fixing buckle (9), the fixing sheet (8) is rotatably arranged on the right side plate (4), the fixing buckle (9) is arranged on the turnover plate (7), and the turnover plate (7) and the right side plate (4) are fixed through the fixing sheet (8) and the fixing buckle (9).

4. The caravan folding expansion device according to claim 2, wherein the edge of the expansion opening (6) is provided with a U-shaped torsion spring (10), the torsion spring (10) being used for structural support of a tent.

5. The motor home folding expansion device according to claim 2, characterized in that the flap (7) is provided with a position locking mechanism; the position locking mechanism comprises a first locking arm (11) and a second locking arm (12), one end of the first locking arm (11) is rotatably connected with the right side plate (4), the other end of the first locking arm (11) is rotatably installed on the second locking arm (12), and a locking groove (13) is formed in the first locking arm (11); one end of the second locking arm (12) is rotatably connected with the turnover plate (7), and the other end of the second locking arm (12) is provided with a locking block (14) matched with the locking groove (13).

6. The foldable extension device for caravans according to claim 5, characterized in that the side wall of the right side plate (4) is provided with a first locking seat (15), one end of the first locking arm (11) is rotatably mounted on the first locking seat (15), the side wall of the flip plate (7) is provided with a second locking seat (16), and one end of the second locking arm (12) is rotatably mounted on the second locking seat (16).

7. The foldable extension device for caravans according to claim 1, characterized in that the bottom end of the end panel (5) is pivotally connected to the lower side panel (2), and a locking mechanism (17) is provided between the top end of the end panel (5) and the upper side panel (1).

8. The foldable extension device of caravan of claim 7, wherein the locking mechanism (17) comprises a locking piece and a latch, the locking piece is rotatably arranged on the end panel (5), the latch is arranged on the upper side plate (1), and the end panel (5) and the upper side plate (1) are locked through the locking piece and the latch.

9. The foldable extension device for caravan of claim 1, wherein the bottom ends of the left side plate (3) and the right side plate (4) are provided with supporting flanges, and when the extension box is extended, the supporting flanges of the left side plate (3) and the right side plate (4) support the left end and the right end of the lower side plate (2); the tip of left side board (3) and right side board (4) is equipped with spacing limit, and when the expansion box expanded, the spacing limit of left side board (3) and right side board (4) was spacing to terminal plate (5).

10. The foldable extension device for caravans according to claim 1, characterized in that the bottom end of the lower side plate (2) is provided with a plurality of ribs (18) and the end plate (5) is provided with a window (19).