Suitcase with convenient capacity expansion and adjustment

Abstract

The present invention provides a suitcase with convenient capacity expansion and adjustment, comprising two shells, wherein a telescopic enclosure is arranged between the two shells to connect same. The suitcase further comprises a drawstring connected to the two shells, and further comprises a retracting and releasing device capable of retracting and releasing the drawstring. The two shells are joined and separated by means of the retracting and releasing operations on the drawstring. When the telescopic enclosure of the suitcase is operated, the joining and separation of the two shells are controlled by means of the drawstring; by changing the length of the drawstring connecting the two shells, the joining and separation of the two shells are controlled and adjusted, and the distance between the two shells is adjusted; the length of the drawstring is controlled by means of the retracting and releasing device, and the retracting and releasing operations of the retracting and releasing device on the drawstring enable the joining and separation of the two shells, and adjust the distance between the two shells. When operating the retracting and releasing device, a hand only needs to operate at one position, without the need for large-range movement as required by a zipper structure in the prior art, thereby making operations simple and convenient.

Description

Travel bag convenient for expansion adjustment TECHNICAL FIELD

[0001] The present application relates to the technical field of travel bags, in particular to a travel bag convenient for expansion adjustment. BACKGROUND

[0002] An existing travel bag with adjustable storage space includes two housings connected by a telescopic enclosure and connected by a zipper. When the zipper is pulled together, the two housings are combined together in the normal storage space state. When the zipper is pulled apart, the two housings can be separated from each other, and the telescopic enclosure is pulled apart, so that the storage space between the two housings is enlarged.

[0003] As disclosed in the patent with the patent application publication number CN 115708618 A, a telescopic middle frame and a travel bag using the middle frame are disclosed, and reference is made to FIGS. 1 and 2. FIG. 1 is a view of the zipper being pulled together, and FIG. 2 is a view of the zipper being pulled apart, the two housings being separated from each other, and the telescopic enclosure being pulled apart.

[0004] The existing travel bag with expandable capacity has the following problems when performing the expansion operation: when performing the expansion operation, the hand needs to operate the zipper head to move around the travel bag, the operation distance is long, and the operator may also need to follow the operation of the zipper head to move the position, so that the operation is more troublesome. SUMMARY

[0005] In view of the problems pointed out in the background, the present application provides a travel bag convenient for expansion adjustment to solve the above technical problems.

[0006] The technical scheme of the present application is as follows:

[0007] A travel bag convenient for expansion adjustment includes two housings, a telescopic enclosure between the two housings, a pull rope connected to the two housings, and a winding and releasing device for winding and releasing the pull rope. The winding and releasing device makes the two housings close and separate by winding and releasing the pull rope.

[0008] The present application further provides that the winding and releasing device is connected to the telescopic enclosure or suspended, and the pull rope is at least one. One end of the pull rope is connected to the winding and releasing device, and the two housings are connected to at least one pull rope.

[0009] The present application further provides that the winding and releasing device is fixedly connected to the outer wall of one of the housings, one end of the pull rope is connected to the winding and releasing device, and the other end of the pull rope is connected to the other housing.

[0010] The present application further provides that the winding and releasing device is at least one.

[0011] The application is further provided that one of the retractable devices is provided with at least one pull rope connected therewith.

[0012] The application is further provided that the shell is provided with a plurality of guide portions for connecting the pull ropes, the guide portions are arranged along the circumference of the shell and are spaced apart, the guide portions on the two shells are arranged in a staggered manner, and the pull ropes are arranged in a continuous and undulating manner on the guide portions on the two shells.

[0013] The application is further provided that two of the retractable devices are arranged on opposite sides of the shell, and each of the retractable devices is provided with two pull ropes.

[0014] The application is further provided that one of the retractable devices is provided, and the pull rope is provided with two pull ropes, the shell is provided with a plurality of guide portions for connecting the pull ropes, the guide portions are arranged along the circumference of the shell and are spaced apart, the guide portions on the two shells are arranged in a staggered manner, and the pull ropes are arranged in a continuous and undulating manner on the guide portions on the two shells.

[0015] The application is further provided that one of the shell (1) and the retractable enclosure (2) is provided with a zipper structure connecting the two, the zipper structure includes a first zipper tape connected with the shell (1) and a second zipper tape connected with the retractable enclosure (2), the first zipper tape and the second zipper tape are connected through a zipper head, one end of the pull rope (3) is connected with the second zipper tape, and the other end of the pull rope (3) is connected with the other shell (1); or, the two shells (1) and the retractable enclosure (2) are each provided with a zipper structure connecting the two, the zipper structure includes a first zipper tape connected with the shell (1) and a second zipper tape connected with the retractable enclosure (2), the corresponding first zipper tape and the second zipper tape are connected through a zipper head, and the two ends of the pull rope (3) are connected with the two second zipper tapes, respectively.

[0016] The application is further provided that the retractable device includes a base and a rotating cover, the base is provided with a connecting shaft at the center, the base is provided with a rotatable turntable inside, the turntable is coaxially arranged with the connecting shaft and is spaced apart, the rotating cover is provided with a connecting pipe connected with the connecting shaft at the center, and the opposite surfaces of the rotating cover and the turntable are respectively provided with a first tooth disc and a second tooth disc; when the rotating cover and the turntable are buckled with each other, the first tooth disc and the second tooth disc are engaged, so that the rotating cover and the turntable are linked; when the rotating cover and the turntable are separated, the rotating cover and the turntable can be independently rotated, respectively.

[0017] By adopting the above technical scheme, the application has the following beneficial effects:

[0018] The travel case with convenient capacity adjustment provided by the present application, when operating the telescopic enclosure of the travel case, the folding and separating of the two housings are controlled by the pull rope, the folding, separating and adjusting the distance between the two housings are controlled and adjusted by changing the length of the pull rope connecting the two housings, and the length of the pull rope is operated by the winding and unwinding device, the winding and unwinding operation of the winding and unwinding device makes the folding and separating of the two housings and the adjusting the distance between the two housings. When operating the winding and unwinding device, the hand only needs to operate in one position, without large range of movement like the zipper structure in the prior art, so that the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0020] Fig. 1 is a schematic view of the structure of the prior art travel case.

[0021] Fig. 2 is a schematic view of the structure of the prior art travel case.

[0022] Fig. 3 is a schematic view of the structure of the exterior of the travel case of the present application.

[0023] Fig. 4 is a schematic view of the structure of the interior of the travel case of the present application.

[0024] Fig. 5 is a schematic view of the structure of the interior of the travel case of the present application.

[0025] Fig. 6 is a schematic view of the structure of the winding and unwinding device of the present application.

[0026] Fig. 7 is a schematic view of the structure of the anti-rotation structure of the present application.

[0027] Fig. 8 is a schematic view of the structure of one end of the telescopic enclosure connected to the housing by the zipper structure.

[0028] Fig. 9 is a schematic view of the structure of both ends of the telescopic enclosure connected to the housing by the zipper structure. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0030] The present application will be described as follows with reference to Figs. 1-9:

[0031] A travel bag with convenient capacity adjustment function, comprising two shells 1, a telescopic enclosure 2 connecting the two shells 1, the telescopic enclosure 2 being annular, and the two ends of the telescopic enclosure 2 being fixedly connected with the open ends of the two shells 1, wherein one of the shells 1 is provided with an openable and closable cover (the cover is used to open and close the travel bag).

[0032] Further comprising a pull rope 3 connected with the two shells 1, and a winding and releasing device 4 capable of winding and releasing the pull rope 3, the two shells 1 being folded and separated by the winding and releasing operation of the pull rope 3. In the connecting direction of the two shells 1, the two shells 1 are connected through the pull rope 3, so that by changing the length of the pull rope 3, the distance between the two shells 1 can be controlled, and the telescopic enclosure 2 is used to adjust the capacity of the travel bag. The length of the pull rope 3 is controlled and adjusted by the winding and releasing device 4.

[0033] The winding and releasing device 4 is a conventional automatic shoelace winding device. For reference, please refer to the existing technology, such as the shoelace winding buckle disclosed in the patent with the patent authorization announcement number CN 207075651 U, the automatic shoelace winding rotary buckle disclosed in the patent with the patent authorization announcement number CN 207322825 U, and the rotary shoelace winding device disclosed in the patent with the patent authorization announcement number CN 202635798 U. The winding and releasing device 4 is prior art, which can be directly purchased in the market.

[0034] Referring to Figure 6, this application provides a specific implementation structure of a retractable device 4: the retractable device 4 includes a base 41 and a rotating cover 42. The base 41 is cylindrical and has a groove extending through one side of its axial direction. A connecting shaft 43 is located at the center of the bottom of the groove in the base 41. A rotatable turntable 44 is located inside the base 41. The turntable 44 is annular and is coaxially and spaced apart from the connecting shaft 43. The rotating cover 42 is disc-shaped and has a connecting pipe 45 at its center that is connected to the connecting shaft 43. The connecting shaft 43 and the connecting pipe 45 are plugged into each other. An annular positioning ring 431 is provided on the side wall of the connecting shaft 43, and an annular positioning groove 451 is provided on the inner side wall of the connecting pipe 45. There are two positioning grooves 451, which are axially spaced apart from each other on the connecting shaft 43. The positioning ring 431 cooperates with the positioning groove 451 to realize the positioning and fixed connection between the connecting shaft 43 and the connecting pipe 45. The positioning ring 431 is connected to the two positioning grooves 451 respectively, which can realize the positioning of the base 41 and the rotating cover 42 for fastening and separation. A first toothed disc 46 and a second toothed disc 47 are respectively provided on the facing surfaces of the rotating cover 42 and the turntable 44. When the rotating cover 42 and the turntable 44 are fastened together, the first toothed disc 46 and the second toothed disc 47 mesh, so that the rotating cover 42 and the turntable 44 move together in the circumferential direction. When the rotating cover 42 and the turntable 44 are separated, the rotating cover 42 and the turntable 44 can rotate independently. The base 41 is provided with an inlet and outlet hole 48 for the pull rope 3 to pass through. The pull rope 3 enters the base 41 and is fixedly connected to the turntable 44. The turntable 44 has an "I" shaped cross section. When the turntable 44 rotates, the pull rope 3 can be wound around the turntable 44, so that the pull rope 3 is wound up and becomes shorter. When the pull rope 3 is pulled, the turntable 44 can also be rotated, so that the pull rope 3 is released and becomes longer.

[0035] Referring to Figure 7, an anti-rotation structure is provided between the base 41 and the rotating cover 42. When the base 41 and the rotating cover 42 are engaged, the anti-rotation structure only allows the rotating cover 42 to rotate clockwise or counterclockwise. This allows adjustment of the length of the pull rope 3 that is wound up. (The rotating cover 42 has an annular rim 421 on its edge. The inner diameter of the rim 421 is equal to the outer diameter of the base 41. The inner sidewall of the rim 421 has protruding anti-rotation teeth 422. The outer sidewall of the base 41 has an anti-rotation groove 411 that connects to the anti-rotation teeth 422. When the base 41 and the rotating cover 42 are engaged, the anti-rotation teeth 422 cooperate with the anti-rotation groove 411 to allow the rotating cover 42 to rotate clockwise or counterclockwise.)

[0036] The unfolding device 4 is located on the outside of the suitcase shell. The unfolding device 4 is located in the following configuration:

[0037] The pull rope 3 is located inside the housing 1 and the telescopic enclosure 2. The pull rope 3 passes through the housing 1 and the telescopic enclosure 2 and is connected to the outer retraction device 4.

[0038] The setting position of the winding and unwinding device 4 is implemented in structure one: the winding and unwinding device 4 is arranged on the outer side of the luggage case, the winding and unwinding device 4 is fixedly connected with the telescopic enclosure 2, the pulling rope 3 is provided with at least two, one end of the pulling rope 3 is connected with the winding and unwinding device 4 (connected with the rotating disc 44), and the other end of the pulling rope 3 is connected with the two case bodies 1. When the pulling rope 3 is provided with two, one end of the two pulling ropes 3 is connected with the rotating disc 44, and the other end of the two pulling ropes 3 is respectively connected with the two case bodies. Thus, the length of the two pulling ropes 3 can be changed by the winding and unwinding device 4, and the distance between the two case bodies can be adjusted.

[0039] The setting position of the winding and unwinding device 4 is implemented in structure two: the winding and unwinding device 4 is arranged on the outer side of the luggage case, the winding and unwinding device 4 is arranged in suspension (the winding and unwinding device 4 is not connected with the case body 1 and the telescopic enclosure 2), the pulling rope 3 is provided with at least one, one end of the pulling rope 3 is connected with the winding and unwinding device 4 (connected with the rotating disc 44), and the other end of the pulling rope 3 is connected with the two case bodies 1. When the pulling rope 3 is provided with two, one end of the two pulling ropes 3 is connected with the rotating disc 44, and the other end of the two pulling ropes 3 is respectively connected with the two case bodies. Thus, the length of the two pulling ropes 3 can be changed by the winding and unwinding device 4, and the distance between the two case bodies can be adjusted.

[0040] In the above-mentioned implementation structure one and implementation structure two, the winding and unwinding device 4 is provided with at least one, and the number and position of the winding and unwinding device 4 can be arranged according to the needs.

[0041] The setting position of the winding and unwinding device 4 is implemented in structure three: the winding and unwinding device 4 is fixedly connected with the outer side wall of one of the case bodies 1, one end of the pulling rope 3 is connected with the winding and unwinding device 4 (connected with the rotating disc 44), and the other end of the pulling rope 3 is connected with the other case body 1.

[0042] In the above-mentioned implementation structure three, the winding and unwinding device 4 is provided with at least one, and the number and position of the winding and unwinding device 4 can be arranged according to the needs. One winding and unwinding device 4 is provided with at least one pulling rope 3 connected therewith.

[0043] One end of the pulling rope 3 is connected with the winding and unwinding device 4, and the other end of the pulling rope 3 is directly connected with the case body 1. The winding and unwinding device 4 is connected at the edge position of the opening end of the case body 1, and the two ends of the pulling rope 3 are connected at the edge position of the opening end of the case body 1.

[0044] The case body 1 is provided with a guide part 5 for connecting the pulling rope 3 (the guide part 5 is arranged at the edge position close to the opening end of the case body 1), the guide part 5 is in a ring structure, the guide part 5 is provided with a hole for the pulling rope 3 to pass through, the guide part 5 is provided with a plurality of and is arranged in interval along the circumference of the case body 1, the guide parts 5 on the two case bodies 1 are arranged in staggered positions, the pulling rope 3 passes through the guide parts 5 on the two case bodies, the pulling rope 3 is arranged in extension along the circumference of the case body 1, and thus the pulling rope 3 is arranged in continuous undulation on the guide parts 5 on the two case bodies 1.

[0045] In the third structure, the winding and unwinding device 4 is provided with two, and each winding and unwinding device 4 is provided with two pull ropes 3.

[0046] In the third structure, the winding and unwinding device 4 is provided with one, and the winding and unwinding device 4 is arranged on one shell 1, one end of the pull rope 3 is connected with the winding and unwinding device 4, the other end of the pull rope 3 is fixedly connected with another shell, the pull rope 3 is provided with two, the shell 1 is provided with a guide part 5 connected with the pull rope 3, the guide part 5 is provided with multiple and is arranged in a circumferential direction of the shell 1, the guide parts 5 on the two shells 1 are arranged in a staggered manner, the pull rope 3 passes through the guide parts 5 on the two shells 1, the pull rope 3 is arranged in a circumferential direction of the shell, and the pull rope 3 is arranged in a continuous undulating manner on the guide parts 5 on the two shells 1. Referring to FIG. 5.

[0047] As follows, referring to FIGS. 8 and 9:

[0048] One of the shells 1 and the telescopic enclosure 2 is provided with a zipper belt structure connecting the two, the zipper structure includes a first zipper belt 72 connected with the shell 1 and a second zipper belt 73 connected with the telescopic enclosure 2, the first zipper belt 72 and the second zipper belt 73 are connected through a zipper head, one end of the pull rope 3 is connected with the second zipper belt 73, and the other end of the pull rope 3 is connected with the other shell 1. In this technical solution, when the winding and unwinding device 4 is fixed on the other shell 1, one end of the pull rope 3 is connected with the second zipper belt 73, and the other end of the pull rope 3 is connected with the other shell 1. When the winding and unwinding device 4 is connected with the telescopic enclosure or is arranged in a suspended manner, two pull ropes are arranged, one end of the first pull rope is connected with the second zipper belt 73, the other end of the first pull rope 3 is connected with the winding and unwinding device, the other end of the second pull rope 3 is connected with the winding and unwinding device, and one end of the second pull rope 3 is connected with the other shell 1.

[0049] The two shells 1 and the telescopic enclosure 2 are each provided with a zipper belt structure connecting the two, the zipper structure includes a first zipper belt 72 connected with the shell 1 and a second zipper belt 73 connected with the telescopic enclosure 2, and the corresponding first zipper belt 72 and second zipper belt 73 are connected through a zipper head, both ends of the pull rope 3 are connected with the two second zipper belts 73. In this technical solution, the winding and unwinding device 4 can only be connected with the telescopic enclosure or arranged in a suspended manner, one end of the two pull ropes 3 is connected with the winding and unwinding device 4, and the other end of the two pull ropes 3 is connected with the two second zipper belts 73.

[0050] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A suitcase with convenient expansion and adjustment, comprising two shells (1), and a telescopic enclosure (2) connecting the two shells (1), characterized in that: It also includes a pull rope (3) connected to the two housings (1), and a winding and unwinding device (4) for winding and unwinding the pull rope (3), which causes the two housings (1) to close and separate by winding and unwinding the pull rope (3).

2. The suitcase with convenient expandable and adjustable capacity according to claim 1, characterized in that: The retractable device (4) is connected to or suspended from the telescopic enclosure (2). At least one pull rope (3) is provided, and one end of the pull rope (3) is connected to the retractable device (4). Both shells (1) have at least one pull rope (3) connected to them.

3. A suitcase with convenient expandable and adjustable capacity according to claim 1, characterized in that: The retraction device (4) is fixedly connected to the outer wall of one of the housings (1), one end of the pull rope (3) is connected to the retraction device (4), and the other end of the pull rope (3) is connected to the other housing (1).

4. A suitcase with convenient expandable and adjustable capacity according to claim 2 or 3, characterized in that: The aforementioned take-up and take-down device (4) shall be at least one.

5. A suitcase with convenient expandable and adjustable capacity according to claim 3, characterized in that: A take-up and take-down device (4) is provided with at least one pull rope (3) connected to it.

6. A suitcase with convenient expandable and adjustable capacity according to claim 4, characterized in that: The housing (1) is provided with a guide part (5) for connecting the pull rope (3). Multiple guide parts (5) are provided and are spaced apart along the circumference of the housing (1). The guide parts (5) on the two housings (1) are staggered. The pull rope (3) is continuously undulating and passes through the guide parts (5) on the two housings (1).

7. A suitcase with convenient expandable and adjustable capacity according to claim 3, characterized in that: The aforementioned retraction device (4) is provided in two parts, and the two retraction devices (4) are arranged on opposite sides of the housing (1). Each retraction device (4) is provided with two pull ropes (3).

8. A suitcase with convenient expandable and adjustable capacity according to claim 3, characterized in that: The aforementioned retraction device (4) is provided, and the pull rope (3) is provided in two places. The housing (1) is provided with a guide part (5) for connecting the pull rope (3). Multiple guide parts (5) are provided and are spaced apart along the circumference of the housing (1). The guide parts (5) on the two housings (1) are staggered. The pull rope (3) is continuously undulating and passes through the guide parts (5) on the two housings (1).

9. A suitcase with convenient expandable and adjustable capacity according to any one of claims 1, characterized in that: One of the housings (1) and the telescopic enclosure (2) is provided with a zipper strap structure connecting the two. The zipper structure includes a first zipper strap connected to the housing (1) and a second zipper strap connected to the telescopic enclosure (2). The first zipper strap and the second zipper strap are connected by a zipper head. One end of the pull cord (3) is connected to the second zipper strap, and the other end of the pull cord (3) is connected to the other housing (1). Alternatively, both housings (1) and the telescopic enclosure (2) are provided with a zipper strap structure connecting the two. The zipper structure includes a first zipper strap connected to the housing (1) and a second zipper strap connected to the telescopic enclosure (2). The corresponding first zipper strap and second zipper strap are connected by a zipper head, and both ends of the pull cord (3) are connected to the two second zipper straps respectively.

10. A suitcase with convenient expandable and adjustable capacity according to any one of claims 1-9, characterized in that: The aforementioned retractable device (4) includes a base (41) and a rotating cover (42). The base (41) has a connecting shaft (43) at its center and a rotatable turntable (44) inside the base (41). The turntable (44) is coaxially arranged with the connecting shaft (43) and spaced apart. The rotating cover (42) has a connecting pipe (45) at its center that is connected to the connecting shaft (43). The rotating cover (42) and the turntable (44) have a first toothed disc (46) and a second toothed disc (47) respectively on their opposing surfaces. When the rotating cover (42) and the turntable (44) are engaged, the first toothed disc (46) and the second toothed disc (47) mesh, so that the rotating cover (42) and the turntable (44) move together. When the rotating cover (42) and the turntable (44) are separated, the rotating cover (42) and the turntable (44) can rotate independently.

Images