Folding trolley case

Abstract

A folding trolley case, comprising a case body (1). A pull rod is provided at the front end of the case body (1), and a movable case cover (2) is provided at the rear end of the case body (1), a folding frame being provided between the case body (1) and the case cover (2). The folding frame comprises folding supports (31) located on two sides of the case body (1) and a bottom cross beam (32) between the two folding supports (31); two ends of each folding support (31) are respectively connected to a case body base (33) and a case cover base (34); the case body base (33) is arranged in the case body (1); the case cover base (34) is connected to the case cover (2) by means of a folding hinge (36); and a connecting rod (35) is provided above the case cover base (34). The folding trolley case is adaptable to more application scenarios: for example, the folding trolley case may be used as a storage case at home, in dormitories and in cars; the folding trolley case may be used as a trolley case on high-speed trains and airplanes and in hotels; the folding trolley case may be used as a shopping cart in markets and supermarkets; the folding trolley case may be used as a camping vehicle outdoors and in scenic areas; and the folding trolley case may be used as a baby stroller in parks and hospitals.

Description

Folding suitcase Technical Field

[0001] This utility model relates to the field of travel products, and in particular to a folding trolley case. Background Technology

[0002] Roller suitcases are a popular choice for travelers due to their attractive design, lockable lids, and convenient features like handles and wheels. However, with rapid societal development, people are increasingly accustomed to various travel scenarios, such as airports, airplanes, high-speed rail stations, trains, hotels, schools, scenic spots, shopping malls, and hospitals. The types of items carried also vary, including children's playground equipment, travel supplies, purchased goods, furniture moving, package delivery, camping gear, etc., with varying quantities and lengths. Traditional roller suitcases can no longer meet these needs, leading to a growing preference for campervans with greater carrying capacity. However, campervans often occupy significant space, making them difficult to move on high-speed trains or airplanes, offering limited privacy, and being unable to carry cargo when folded. Given that it's not possible to have both a roller suitcase and a campervan, we propose a folding roller suitcase with adjustable space to accommodate more diverse carrying needs, thus providing greater convenience and a better travel experience. Summary of the Invention

[0003] The purpose of this utility model is to provide a folding suitcase that can be used as both a suitcase and a campervan, achieving a perfect combination of the advantages of both, making it a multi-purpose case.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A folding suitcase includes a suitcase body, a pull rod at the front end of the suitcase body, a movable lid at the rear end of the suitcase body, and a folding frame between the suitcase body and the lid.

[0006] Preferably, the folding frame includes folding brackets located on both sides of the box body, a bottom crossbeam between the two folding brackets, and the two ends of the folding brackets are respectively connected to the box body base and the box cover base. The box body base is set inside the box body, and the box cover base is connected to the box cover through a folding hinge. A connecting rod is provided above the box cover base.

[0007] Preferably, the pull rod includes a pull rod base disposed at the front end of the box body, a telescopic pull rod disposed on the pull rod base, a limit support rod disposed between the telescopic pull rod and the pull rod base, a pull rod handle disposed at the upper end of the telescopic pull rod, a positioning switch disposed on the pull rod handle, and a pull rod hook disposed at the top end of the telescopic pull rod.

[0008] Preferably, the folding suitcase further includes a combination lock, which includes a lock seat on the suitcase body, a lock buckle on the suitcase lid, and a first self-springing pin on the connecting rod.

[0009] Preferably, a cloth bag is provided inside the folding frame, which forms a closed space between the box body and the box lid.

[0010] Preferably, the folding suitcase also includes a canopy, which comprises a tarpaulin that is detachably connected to the top of the inner pocket via a zipper.

[0011] Preferably, the folding suitcase also includes a base plate that can be stored in the base of the pull rod, and a second self-springing pin is provided in the suitcase body, the telescopic end of the second self-springing pin extending into the base of the pull rod to lock the base plate.

[0012] Preferably, one of the box body and the box lid has a buckle on its outer side, and the other has a hook that engages with the buckle on its outer side.

[0013] Preferably, the bottom of the box is provided with locking casters, and the bottom of the box cover is provided with locking casters.

[0014] Preferably, on the mating surfaces of the box body and the box lid, one is provided with a groove and the other is provided with a protrusion that mates with the groove, and a sealing strip is provided in the groove;

[0015] The outer side of the box body and box cover is equipped with reflective markers.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. Folding suitcases have more applicable scenarios: for example, they can be used as storage boxes at home, in dormitories, and in cars; as trolley cases on high-speed trains, airplanes, and in hotels; as shopping carts in markets and supermarkets; as camping vehicles in the outdoors and scenic spots; and as strollers in parks and hospitals.

[0018] 2. Foldable suitcases can be used in various scenarios: When changing scenarios such as taking a high-speed train or boarding a plane, the campervan can be folded into a suitcase, and the luggage can be loaded onto the vehicle or boarded the plane separately; when getting off the vehicle or checking in items after disembarking, the suitcase can be unfolded into a campervan, and the luggage can be transported in one place, reducing the burden and making it easier to manage.

[0019] 3. The folding suitcase can be adjusted in size according to the amount of items: when carrying fewer items, the suitcase form can be selected; when carrying more items, it can be expanded into a campervan, with the length being about one or two times the height of the suitcase; when carrying longer items, the lid can be folded up, with the length being about three times the height of the suitcase. Attached Figure Description

[0020] Figure 1 is a front view of this utility model;

[0021] Figure 2 is a left view of this utility model (covering canopy);

[0022] Figure 3 is a left view of this utility model (without the canopy);

[0023] Figure 4 is a bottom view of this utility model;

[0024] Figure 5 is a cross-sectional view AA of Figure 3 (with the box lid open);

[0025] Figure 6 is a sectional view of Figure 3 (with the lid standing up);

[0026] Figure 7 is a BB cross-sectional view of Figure 6.

[0027] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0028] The present invention will now be further described with reference to the accompanying drawings. Example

[0029] As shown in Figure 1, the folding suitcase of this embodiment includes a suitcase body 1, a pull rod at the front end of the suitcase body 1, and a movable lid 2 at the rear end of the suitcase body 1. A folding frame is provided between the suitcase body 1 and the lid 2. The lid 2 is moved by the extension and retraction of the folding frame. When the folding frame retracts, the lid 2 moves towards the side closer to the suitcase body 1 until the two form a seal, making it usable as a suitcase. When the folding frame extends, the lid 2 moves away from the side of the suitcase body 1, making it usable as a campervan.

[0030] The folding frame includes folding brackets 31 located on both sides of the box body 1 and a bottom crossbeam 32 between the two folding brackets 31. The two ends of the folding brackets 31 are connected to the box body base 33 and the box cover base 34 respectively. The box body base 33 is located inside the box body 1. The box cover base 34 is connected to the box cover 2 through a folding hinge 36. A connecting rod 35 is provided above the box cover base 34.

[0031] In this embodiment, the folding bracket 31 is composed of multiple X-shaped brackets hinged together by pins, which allows for a longer folding and telescopic range while reducing the vertical sliding range. The bottom crossbeam 32 is connected between the lower pins of the two folding brackets 31 and folds synchronously with the folding bracket 31. The box base 33 is a U-shaped groove, with a pin on the upper part of one side of the groove opening, which is rotatably hinged to the upper support point at the front of the folding bracket 31. The lower part of one side of the groove opening is provided with a first slide rail 37, which is slidably hinged to the lower support point at the front of the folding bracket 31. The lower end of the box base 33 is fixed with a locking caster wheel 61. The lid base 34 is also a U-shaped groove. A pin is provided on the upper part of one side of the groove opening, which is rotatably hinged to the upper support point behind the folding bracket 31. A second slide rail 38 is provided on the lower part of one side of the groove opening, which is slidably hinged to the lower support point behind the folding bracket 31. A locking universal wheel 62 is fixed at the lower end of the lid base 34. A connecting rod 35 is fixed at the upper end of the groove of the lid base 34, which is locked to the upper opening of the lid 2. A folding hinge 36 is fixed on the back of the lid base 34, which is folded and hinged to the lower part of the lid 2. The folding hinge 36 is a 90° folding load-bearing hinge, which allows the lid 2 to be opened and folded upwards by 90 degrees when the suitcase is laid flat, making it easy to take out items. When in campervan mode, the lid 2 can be opened and folded outwards by 90 degrees, making it convenient to place longer items. Figure 1 shows a schematic diagram of the lid 2 in the folding process (folded to 45°).

[0032] The above components form a complete folding frame. Pulling the case 1 and lid 2 outwards separates the folding frame, allowing it to unfold in parallel. Pushing the case 1 and lid 2 inwards retracts the folding frame 3. Pressing the lid 2 backwards and downwards opens it to a 90° angle. The folding frame 3 enables the conversion between a suitcase and a campervan, as well as the folding and opening of the lid 2.

[0033] As shown in Figures 1, 2, and 4, the pull rod includes a pull rod base 41 located at the front end of the housing 1. A telescopic pull rod 43 is mounted on the pull rod base 41. A limit support rod 42 is provided between the telescopic pull rod 43 and the pull rod base 41. A pull rod handle 44 is provided at the upper end of the telescopic pull rod 43, and a positioning switch 46 is provided on the pull rod handle 44. A pull rod hook 45 is provided at the top of the telescopic pull rod 43. The pull rod base 41 is a U-shaped groove located on both sides of the front end of the housing 1, and is fixed to the housing 1 opposite to the housing base 33 for a more secure fixation. A pin is provided at the upper end of the pull rod base 41, which is hinged to the upper end of the limit support rod 42. A pin is provided at the lower end of the pull rod base 41, which is hinged to the lower end of the telescopic pull rod 43. Spring-loaded locking holes 47 are provided on the inner side of the grooves on both sides of the pull rod base 41, which cooperate with the extended spring-loaded buckles 48 inside the telescopic pull rod 43 to achieve telescopic positioning of the pull rod and simultaneously position it on the pull rod base 41. The limiting support rod 42 consists of two support rods connected by limiting components and pins at both ends of the support rods. It is hinged between the pull rod base 41 and the telescopic pull rod 43, allowing the telescopic pull rod 43 to be folded and stop arbitrarily within the folding range (this is existing technology and will not be described in detail). The telescopic pull rod 43 includes an outer section pull rod, an inner section pull rod, and a spring buckle assembly. The difference from existing technology is that the spring buckle is lengthened to position the telescopic pull rod 43 within the pull rod base 41. The pull rod handle 44 is located at the upper part between the telescopic pull rods 43. The pull rod handle 44 is wider, making it convenient for pushing and pulling with both hands or two people, and also convenient for side use. The pull rod hook 45 is located at the top of the telescopic pull rod 43. It is a small, upward-protruding antler shape, does not require folding, is convenient and durable, and can be used to hang clothes, water cups, snacks, etc. A positioning switch 46 is located in the middle of the pull rod handle 44. By pressing the switch 46, the extended spring buckle 48 inside the telescopic pull rod 43 is activated, causing it to retract from the outer section of the pull rod and the spring buckle locking hole 47 of the pull rod base 41 into the inner section of the pull rod, thus releasing the positioning of the outer section of the pull rod and the pull rod base 41. At this time, the pull rod can extend and retract, and can also detach from the base. When extending or retracting along the base, releasing the switch 46 causes the extended spring buckle 48 to automatically lock into the corresponding spring buckle locking hole 47, achieving telescopic positioning on the base. When the telescopic pull rod detaches from the base, the positioning switch 46 only positions the extension and retraction of the pull rod.

[0034] The above components form a telescopic and folding handle 4. When in the suitcase mode, pressing the handle button 46 will lift the handle 43 to the designated position and position it within the handle base 41, which is suitable for use with suitcases. When in the campervan mode, pressing the handle button 46 will simultaneously lift and fold the handle to the appropriate position, which is suitable for use with campervans.

[0035] As shown in Figures 2 and 5-7, this embodiment also includes a combination lock, which includes a lock seat 51 on the box body 1, a latch 53 on the box cover 2, and a first self-springing pin 52 on the connecting rod 35. The lock seat 51 is located in the middle of the upper part of the box body 1 and has a double locking groove (existing technology) to lock the latch 53 on the corresponding box cover. The connecting rod 35 is a U-shaped groove with the groove opening facing downwards and fixed above the box cover base 34. The middle of the upper part of the connecting rod 35 has a hole corresponding to the lower locking pin of the box cover latch 53, used to lock the box cover 2 from opening to the side. The side wall corresponding to the hole of the connecting rod 35 is provided with a first self-springing pin 52. The first self-springing pin 52 includes a pin 522 passing through the side wall of the connecting rod 35 and a first spring 521 locked in the pin 522 and the connecting rod 35. Pulling the pull head can retract the pin 522, and releasing the pull head will cause the pin 522 to automatically pop out under the action of the first spring 521. The latch 53 is located in the middle above the lid 2 and cooperates with the lock seat 51. The latch 53 includes a locking pin 532 that passes through the lid 2 and is inserted into the socket of the connecting rod 35, and a second spring 531 that is locked under the locking pin 532 and the lid 2. When the lid 2 is closed, the latch 53 is lifted and pressed into the locking groove of the lock seat 51, so as to lock the lid 2 and the lid 1. The lower end of the locking pin 532 is provided with a socket 533 parallel to the connecting rod 35. When the lid latch 53 rotates 90°, the pin 522 on the connecting rod 35 automatically springs into the socket 533 of the locking pin. At this time, the latch 53 cannot be lifted. This function is used when the canopy 8 is locked to prevent the latch 53 from being lifted from the outside. When the pin 522 is pulled out, the lid latch 53 automatically returns to the center under the action of the spring rotation torque. At this time, the lid latch 53 can be lifted and the lid 2 can be opened to the side.

[0036] As shown in Figure 3, a cloth pocket 7 is provided inside the folding frame. The cloth pocket 7 forms a closed space between the box body 1 and the lid 2 to prevent the items inside from falling out. The cloth pocket 7 is made of flexible material and is movably connected to the pins at the top and middle of the folding bracket 31, allowing it to fold and unfold with the extension and retraction of the folding bracket 31. As shown in Figure 2, this embodiment also includes a canopy 8, which includes a canopy cloth. The canopy cloth is detachably connected to the top of the inner pocket 7 via a zipper. The canopy cloth can be made of various materials, such as waterproof fabric, suitable for covering luggage, and providing rain, dust and rodent protection; mesh fabric, suitable for securing uneven items; mesh fabric, suitable for mosquito nets, providing mosquito protection and breathability; UV-resistant fabric, suitable for strolling with children, providing sun protection, etc. When using it, a suitable canopy cloth can be selected according to needs; the zipper pull 81 on the canopy cloth can be locked in the zipper lock hole 511 of the lock seat 51.

[0037] As shown in Figures 2 and 3, this embodiment also includes a base plate that can be stored in the pull rod base 41. The base plate includes a first base plate 91 and a second base plate 92 connected by hinges. The hinges can be folded 180°, so that the base plate can only be folded 180°. U-shaped grooves are provided on the inner side and bottom of both pull rod bases 41 to form a storage space 49, which can be used to store the base plate. In the pull rod case state, the two base plates are folded together and stored in the storage space 49 of the pull rod base 41. A second self-springing pin 55 is provided inside the case 1. The telescopic end of the second self-springing pin 55 extends into the storage space 49 of the pull rod base 41 to lock the base plate, preventing accidental shaking or loss. In the campervan state, the pull head of the second self-springing pin 55 is pulled, or the pull head is linked to the folding bracket 31. Extending the folding bracket 31 will pull the base plate. During the transformation of the suitcase into a campervan, the pull tab moves with the folding bracket 31. The pull tab can be pulled out in two ways, after which the bottom plate can be removed and opened 180°. It is then laid inside the folding frame as a bottom plate, ensuring that the bottom of the cloth bag 7 is flat and preventing the sides from lifting when stepped on, making it more comfortable when carrying children. When carrying heavier items, it can distribute the local pressure evenly to the bottom crossbeam 32. In addition, the bottom plate can also be supported on the suitcase body 1 and the lid 2 as a table, and the corresponding protrusions on the suitcase body and lid can be hollowed out. It can also be laid on the grass as a cushion or bed board.

[0038] As shown in Figure 1, in this embodiment, a buckle 56 is provided on the outside of the case body 1, and a hook 57 is provided on the outside of the case lid 2 to connect with the buckle 56. At the joint surface of the case body 1 and the case lid 2, the case body 1 is provided with a groove, and the case lid 2 is provided with a protrusion to cooperate with the groove. A sealing strip is provided in the groove. The buckle 56 and the hook 57 are interlocked with each other, and together with the sealing strip, the overall appearance of the case body 1 and the case lid 2 is stronger after they are combined, ensuring that the folding trolley case is anti-knock, waterproof, and shockproof after being combined, and can be used for rescue and emergency water rescue when necessary.

[0039] The bottom of the suitcase body 1 is equipped with locking casters 61, each with a brake to stop them in either suitcase or campervan mode. The bottom of the lid 2 is equipped with locking casters 62, each with a locking pin to lock and steer them, allowing the suitcase to turn automatically or the campervan to follow. A notch is provided at the intersection of the bottom of the lid 2 and the support column of the locking caster 62 to allow the caster column to pass through. A corresponding rubber pad is provided on the support column or at the notch to fill the gap, ensuring the lid 2 fits snugly against the suitcase body 1.

[0040] Reflective markings are installed on the outside of the box and lid to improve safety during nighttime use.

[0041] The folding suitcase in this embodiment can adjust its size according to the amount of items. When carrying fewer items, it can be selected as a suitcase; when carrying more items, it can be expanded into a campervan; when carrying longer items, the lid can be folded up to further extend the overall load-bearing length of the suitcase.

[0042] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0044] If the terms "first" or "second" are used in this document to define the components, those skilled in the art should know that the use of "first" or "second" is merely for the convenience of describing this utility model and simplifying the description, and unless otherwise stated, the above terms have no special meaning.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A folding trolley case comprising a case body, characterised in that, The front end of the box is provided with a pull rod, the rear end of the box is provided with a movable box cover, and a folding frame is arranged between the box and the box cover.

2. The foldable trolley case of claim 1, wherein, The folding frame comprises folding supports arranged on both sides of the box, a bottom cross beam arranged between the two folding supports, and box bases and box cover bases respectively connected to the two ends of the folding supports, wherein the box bases are arranged in the box, the box cover bases are connected to the box cover through folding hinges, and link rods are arranged above the box cover bases.

3. The foldable trolley case of claim 1, wherein, The pull rod comprises a pull rod base arranged at the front end of the box, a telescopic pull rod arranged on the pull rod base, a limiting support rod arranged between the telescopic pull rod and the pull rod base, a pull rod handle arranged at the upper end of the telescopic pull rod, a positioning switch arranged on the pull rod handle, and a pull rod hook arranged at the top end of the telescopic pull rod.

4. The foldable trolley case of claim 2, wherein, The combination lock piece comprises a lock seat arranged on the box, a lock catch arranged on the box cover, and a first self-returning bolt arranged on the link rod.

5. The foldable trolley case of claim 1, wherein, A cloth pocket is arranged in the folding frame, and the cloth pocket forms a closed space between the box and the box cover.

6. The foldable trolley case of claim 1, wherein, The top cover comprises a canopy, and the canopy is detachably connected to the top of the inner pocket through a zipper.

7. The foldable trolley case of claim 1, wherein, A bottom plate that can be accommodated in the pull rod base is further included, a second self-returning bolt is arranged in the box, and the telescopic end of the second self-returning bolt extends into the pull rod base to lock the bottom plate.

8. The foldable trolley case of claim 1, wherein, The outer side of one of the box and the box cover is provided with a buckle, and the outer side of the other is provided with a hook matched with the buckle.

9. The foldable trolley case of claim 1, wherein, The bottom of the box is provided with a locking universal wheel, and the bottom of the box cover is provided with a locking universal wheel.

10. The foldable trolley case of claim 1, wherein, One of the box and the box cover is provided with a groove, and the other is provided with a protrusion matched with the groove, and a sealing rubber strip is arranged in the groove. The outer side of the box and the box cover is provided with a reflective marker.

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