A travel case with convenient expansion and adjustment

Abstract

The utility model proposes a travel case that is convenient for expansion and adjustment, comprising two shells, a telescopic enclosure connecting the two shells, a drawstring connected to the two shells, and a retractable device capable of reeling in and releasing the drawstring, and the two shells are closed and separated by reeling in and releasing the drawstring. When operating the telescopic enclosure of the travel case, the closing and separation of the two shells are controlled by the drawstring, and the closing, separation, and distance between the two shells are controlled and adjusted by changing the length of the drawstring connecting the two shells, and the length of the drawstring is operated by the retractable device, and the retractable device reels in and releases the drawstring to close and separate the two shells and adjust the distance between the two shells. When operating the retractable device, the hand only needs to operate at one position, and there is no need to move over a large range like the zipper structure in the prior art, making the operation simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of suitcases, in particular to a suitcase with convenient expansion and adjustment. Background Art

[0002] An existing travel case with adjustable storage space comprises two shells, which are connected by a telescopic band and a zipper belt. When the zipper belt is closed, the two shells are combined together to form a normal storage space state. When the zipper belt is opened, the two shells can be separated from each other and the telescopic band is opened, so that the storage space between the two shells becomes larger.

[0003] For example, a retractable middle frame and a suitcase using the middle frame are disclosed in the patent application publication number CN 115708618 A, and reference is made to Figure 1 and Figure 2 As shown, Figure 1 This is a view of the zipper being closed. Figure 2 This is a view of a state where the zipper is opened, the two shells can be separated from each other, and the telescopic band is opened.

[0004] The existing expandable suitcase has the following problems when performing the expansion operation: during the expansion operation, the zipper head needs to be operated by hand to move around the suitcase, the operation distance is long, and the operator may also need to follow the movement of the zipper head, making the operation more troublesome. Utility Model Content

[0005] In view of the problems pointed out in the background technology, the utility model proposes a suitcase with convenient expansion and adjustment to solve the above technical problems.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A travel case with convenient expansion and adjustment comprises two shells, a telescopic band connecting the two shells is arranged between the two shells, a drawstring connected to the two shells, and a retractable device capable of reeling in and releasing the drawstring, wherein the retractable device closes and separates the two shells by reeling in and releasing the drawstring.

[0008] The utility model is further configured that the retractable device is connected to the telescopic enclosure or is suspended, at least one pull rope is provided, one end of the pull rope is connected to the retractable device, and both shells are connected to at least one pull rope.

[0009] The utility model is further configured such that the retractable device is fixedly connected to the outer side wall of one of the shells, one end of the pull rope is connected to the retractable device, and the other end of the pull rope is connected to the other shell.

[0010] The utility model is further configured that the retractable device is provided with at least one.

[0011] The utility model is further configured that a retractable device is provided with at least one pull rope correspondingly connected thereto.

[0012] The utility model is further configured that a guide portion connected to a pull rope is provided on the shell, a plurality of guide portions are provided and are arranged at intervals along the circumference of the shell, the guide portions on the two shells are arranged in a staggered manner, and the pull rope is passed through the guide portions on the two shells in a continuous undulating shape.

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

[0014] The utility model is further configured as follows: the retractable device is provided with one, two pull ropes are provided, a guide portion connected to the pull rope is provided on the shell, a plurality of guide portions are provided and are arranged at intervals along the circumference of the shell, the guide portions on the two shells are staggered, and the pull rope is passed through the guide portions on the two shells in a continuous undulating shape.

[0015] The utility model is further configured such that a zipper belt structure connecting one shell (1) and the telescopic enclosure (2) is provided between the two, the zipper structure comprising a first zipper belt connected to the shell (1) and a second zipper belt connected to the telescopic enclosure (2), the first zipper belt and the second zipper belt being connected via a zipper head, one end of a drawstring (3) being connected to the second zipper belt, and the other end of the drawstring (3) being connected to another shell (1); or, a zipper belt structure connecting the two shells (1) and the telescopic enclosure (2) is provided between both shells (1) and the telescopic enclosure (2), the zipper structure comprising a first zipper belt connected to the shell (1) and a second zipper belt connected to the telescopic enclosure (2), the corresponding first zipper belt and the second zipper belt being connected via a zipper head, and the two ends of the drawstring (3) being respectively connected to the two second zipper belts.

[0016] The utility model is further configured as follows: the retractable device comprises a base and a rotating cover, a connecting shaft is provided at the center of the base, a rotatable turntable is provided inside the base, the turntable and the connecting shaft are coaxially arranged and spaced apart, a connecting tube connected to the connecting shaft is provided at the center of the rotating cover, and a first toothed disc and a second toothed disc are provided on facing surfaces of the rotating cover and the turntable, respectively; when the rotating cover and the turntable are buckled with each other, the first toothed disc and the second toothed disc are meshed, 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 rotate independently of each other.

[0017] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0018] The utility model provides a convenient expansion and adjustment suitcase. When operating the telescopic enclosure of the suitcase, the closing and separation of the two shells are controlled by a pull cord. The closing and separation of the two shells and the distance between the two shells are controlled and adjusted by changing the length of the pull cord connecting the two shells. The length of the pull cord is operated by a retractable device. The retractable device reels in and releases the pull cord to close and separate the two shells and adjust the distance between the two shells. When operating the retractable device, the hand only needs to operate in one position, and there is no need to move over a large range like the zipper structure in the prior art, so the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 The structure of the existing suitcase is shown in FIG. Figure 1 .

[0021] Figure 2 The structure of the existing suitcase is shown in FIG. Figure 2 .

[0022] Figure 3 It is a schematic diagram of the structure of the exterior of the suitcase of the utility model.

[0023] Figure 4 The structure of the interior of the suitcase of the utility model is shown in FIG. Figure 1 .

[0024] Figure 5 The structure of the interior of the suitcase of the utility model is shown in FIG. Figure 2 .

[0025] Figure 6 It is a structural schematic diagram of the retractable device of the utility model.

[0026] Figure 7 It is a structural schematic diagram of the anti-rotation structure of the utility model.

[0027] Figure 8 It is a structural schematic diagram of a telescopic girdle of the utility model, in which one end is connected to a shell through a zipper structure.

[0028] Fig. 9 This is a structural schematic diagram of the utility model in which both ends of the telescopic girder are connected to the shell through a zipper structure. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] For reference Figure 1-9 The utility model is described as follows:

[0031] A travel case with convenient expansion and adjustment comprises two shells 1, a telescopic enclosure 2 connecting the two shells 1 is provided between the two shells 1, the telescopic enclosure 2 is annular, and both ends of the telescopic enclosure 2 are respectively fixedly connected to the open ends of the two shells 1, and one of the shells 1 is provided with an openable and closable cover (the cover is used to open and close the travel case).

[0032] The suitcase also includes a drawstring 3 connected to the two housings 1, and a retractable device 4 that can reel in and release the drawstring 3. The two housings 1 are brought together and separated by reeling in and releasing the drawstring 3. In the connection direction of the two housings 1, the two housings 1 are connected by the drawstring 3. By changing the length of the drawstring 3, the distance between the two housings 1 can be controlled, and the expansion capacity of the suitcase can be adjusted by using the telescopic enclosure 2. The length of the drawstring 3 is controlled and adjusted by the retractable device 4.

[0033] The retracting and releasing device 4 is an existing rotary automatic shoelace lacing device. Reference may be made to the prior art: for example, a shoelace retracting buckle disclosed in the patent with the patent authorization announcement number CN 207075651 U; an automatic shoelace rotating buckle disclosed in the patent with the patent authorization announcement number CN 207322825U; and a rotary shoelace lacing device disclosed in the patent with the patent authorization announcement number CN 202635798U. The retracting and releasing device 4 is an existing technology and can be directly purchased on the market.

[0034] refer to Figure 6As shown, the present application provides a specific implementation structure of a folding and unfolding device 4: the folding and unfolding device 4 includes a base 41 and a rotating cover 42, the base 41 is cylindrical, and a groove penetrating through one side of the axial direction thereof is provided on the base 41, a connecting shaft 43 is provided at the center of the bottom of the groove of the base 41, a rotatable turntable 44 is provided in the base 41, the turntable 44 is annular, the turntable 44 and the connecting shaft 43 are coaxially arranged and spaced apart, the rotating cover 42 is disc-shaped, a connecting pipe 45 connected to the connecting shaft 43 is provided at the center of the rotating cover 42, and the connecting shaft 43 and the connecting pipe 45 are plug-connected. 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 tube 45. There are two positioning grooves 451, which are arranged at intervals in the axial direction of 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 tube 45. The positioning ring 431 is connected to the two positioning grooves 451 respectively, so as to realize the positioning of the engagement and separation of the base 41 and the rotating cover 42. The first toothed disc 46 and the second toothed disc 47 are respectively provided on the facing surfaces of the rotating cover 42 and the rotating disk 44; when the rotating cover 42 and the rotating disk 44 are engaged with each other, the first toothed disc 46 and the second toothed disc 47 are meshed, so that the rotating cover 42 and the rotating disk 44 are linked in the circumferential direction; when the rotating cover 42 and the rotating disk 44 are separated, the rotating cover 42 and the rotating disk 44 can rotate independently. The base 41 is provided with an entry and exit 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 cross-section of the turntable 44 is an "I"-shaped structure. When the turntable 44 rotates, the pull rope 3 can be wound and rolled up on the turntable 44, so that the pull rope 3 is rolled up and the pull rope 3 becomes shorter. When the pull rope 3 is pulled, the turntable 44 can also be rotated to release the pull rope 3 and make the pull rope longer.

[0035] refer to Figure 7 As shown, 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 buckled, the anti-rotation structure only allows the rotating cover 42 to rotate clockwise or counterclockwise. In this way, the length of the draw cord 3 to be rolled up can be adjusted. (The edge of the rotating cover 42 is provided with an annular rim 421, the inner diameter of the rim 421 is equal to the outer diameter of the base 41, and the inner side wall of the rim 421 is provided with a protruding anti-rotation tooth 422. The outer side wall of the base 41 is provided with an anti-rotation groove 411 connected to the anti-rotation tooth 422. When the base 41 and the rotating cover 42 are buckled, the anti-rotation tooth 422 cooperates with the anti-rotation groove 411 to only allow the rotating cover 42 to rotate clockwise or counterclockwise).

[0036] The storage device 4 is arranged on the outside of the suitcase shell. The arrangement position of the storage device 4 has the following implementation structure:

[0037] The pull cord 3 is arranged on the inner side of the shell 1 and the telescopic enclosure 2 , and the pull cord 3 passes through the shell 1 and the telescopic enclosure 2 and is connected to the retractable device 4 on the outer side.

[0038] Implementation structure 1 of the location of the retractable device 4: the retractable device 4 is arranged outside the suitcase shell, the retractable device 4 is fixedly connected to the telescopic enclosure 2, at least two drawstrings 3 are provided, one end of the drawstrings 3 is connected to the retractable device 4 (connected to the turntable 44), and the other end of at least one drawstring 3 is connected to the two shells 1. When two drawstrings 3 are provided, one end of the two drawstrings 3 is connected to the turntable 44, and the other ends of the two drawstrings 3 are connected to the two shells respectively, so that the length of the two drawstrings 3 can be changed by the retractable device 4 to adjust the distance between the two shells.

[0039] The second implementation structure of the location of the retractable device 4: the retractable device 4 is arranged outside the suitcase shell, and the retractable device 4 is suspended (the retractable device 4 is not connected to the shell 1 and the telescopic enclosure 2), at least one drawstring 3 is provided, one end of the drawstring 3 is connected to the retractable device 4 (connected to the turntable 44), and the other end of at least one drawstring 3 is connected to the two shells 1. When two drawstrings 3 are provided, one end of the two drawstrings 3 is connected to the turntable 44, and the other ends of the two drawstrings 3 are connected to the two shells respectively, so that the length of the two drawstrings 3 can be changed by the retractable device 4 to adjust the distance between the two shells.

[0040] In the above-mentioned implementation structure 1 and implementation structure 2, at least one retractable device 4 is provided, and the number and position of the retractable device 4 can be set according to needs.

[0041] The third implementation structure of the location of the retractable device 4 is as follows: the retractable device 4 is fixedly connected to the outer wall of one of the shells 1 , one end of the pull rope 3 is connected to the retractable device 4 (connected to the turntable 44 ), and the other end of the pull rope 3 is connected to the other shell 1 .

[0042] In the above-mentioned implementation structure 3, at least one retractable device 4 is provided, and the number and position of the retractable device 4 can be set as required. One retractable device 4 is provided with at least one pull rope 3 correspondingly connected thereto.

[0043] One end of the pull rope 3 is connected to the retractable device 4, and the other end of the pull rope 3 is directly connected to the housing 1. The retractable device 4 is connected to the edge of the opening end of the housing 1, and both ends of the pull rope 3 are connected to the edge of the opening end of the housing 1.

[0044] A guide portion 5 connected to the pull rope 3 is provided on the shell 1 (the guide portion 5 is arranged near the edge position of the opening end of the shell 1). The guide portion 5 is an annular structure. A hole is provided on the guide portion 5 for the pull rope 3 to pass through. There are multiple guide portions 5 and they are arranged at intervals along the circumference of the shell 1. The guide portions 5 on the two shells 1 are staggered. The pull rope 3 passes through the guide portions 5 on the two shells. The pull rope 3 is extended along the circumference of the shell 1, so that the pull rope 3 is passed through the guide portions 5 on the two shells in a continuous undulating state.

[0045] In the third embodiment, two retracting devices 4 are provided, and the two retracting devices 4 are provided on the left and right sides of the housing 1, and each retracting device 4 is provided with two pull ropes 3. Figure 3 and Figure 4 shown.

[0046] In the third embodiment, there is one retractable device 4, which is arranged on one housing 1, one end of the pull rope 3 is connected to the retractable device 4, and the other end of the pull rope 3 is fixedly connected to the other housing. There are two pull ropes 3, and the housing 1 is provided with a guide portion 5 for connecting the pull rope 3. There are multiple guide portions 5 and they are arranged at intervals along the circumference of the housing 1. The guide portions 5 on the two housings 1 are staggered, and the pull rope 3 passes through the guide portions 5 on the two housings 1. The pull rope 3 is arranged along the circumference of the housing, and the pull rope 3 is continuously undulating and passed through the guide portions 5 on the two housings 1. Figure 5 shown.

[0047] For reference Figure 8 and Fig. 9 :

[0048] A zipper tape structure connecting one of the shells 1 and the telescopic enclosure 2 is provided, and the zipper structure includes a first zipper tape 72 connected to the shell 1 and a second zipper tape 73 connected to the telescopic enclosure 2, the first zipper tape 72 and the second zipper tape 73 are connected through a zipper head, one end of the drawstring 3 is connected to the second zipper tape 73, and the other end of the drawstring 3 is connected to the other shell 1. In this technical solution, when the retractable device 4 is fixed on the other shell 1, one end of the drawstring 3 is connected to the second zipper tape 73, and the other end of the drawstring 3 is connected to the other shell 1. When the retractable device 4 is connected to the telescopic enclosure or is suspended, two drawstrings are provided, one end of the first drawstring is connected to the second zipper tape 73, the other end of the first drawstring 3 is connected to the retractable device, the other end of the second drawstring 3 is connected to the retractable device, and one end of the second drawstring 3 is connected to the other shell 1.

[0049] A zipper belt structure connecting the two shells 1 and the telescopic enclosure 2 is provided between the two shells 1 and the telescopic enclosure 2. The zipper structure includes a first zipper belt 72 connected to the shell 1 and a second zipper belt 73 connected to the telescopic enclosure 2. The corresponding first zipper belt 72 and second zipper belt 73 are connected through a zipper head, and the two ends of the drawstring 3 are respectively connected to the two second zipper belts 73. In this technical solution, the retractable device 4 can only be connected to the telescopic enclosure or be suspended in the air. One end of the two drawstrings 3 is connected to the retractable device 4, and the other end of the two drawstrings 3 is respectively connected to the two second zipper belts 73.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A travel case that is convenient for expansion and adjustment, comprising two shells (1), a telescopic enclosure (2) connecting the two shells (1) being provided between the two shells, characterized in that: It also includes a drawstring (3) connected to the two shells (1), and a retracting device (4) capable of reeling in and releasing the drawstring (3); the retracting device (4) closes and separates the two shells (1) by reeling in and releasing the drawstring (3).

2. A travel case with convenient expansion and adjustment according to claim 1, characterized in that: The retractable device (4) is connected to the telescopic enclosure (2) or is suspended in the air, at least one pull rope (3) is provided, one end of the pull rope (3) is connected to the retractable device (4), and both housings (1) have at least one pull rope (3) connected thereto.

3. The travel case with convenient expansion and adjustment according to claim 1, characterized in that: The retractable device (4) is fixedly connected to the outer wall of one of the shells (1), one end of the pull rope (3) is connected to the retractable device (4), and the other end of the pull rope (3) is connected to the other shell (1).

4. The travel case with convenient expansion and adjustment according to claim 3, characterized in that: The retractable device (4) is provided with at least one.

5. The suitcase with convenient expansion and adjustment according to claim 3, characterized in that: A retractable device (4) is provided with at least one drawstring (3) correspondingly connected thereto.

6. The travel case with convenient expansion and adjustment according to claim 4, characterized in that: The housing (1) is provided with a guide portion (5) connected to the pull rope (3), a plurality of guide portions (5) are provided and are arranged at intervals along the circumference of the housing (1), the guide portions (5) on the two housings (1) are arranged in a staggered manner, and the pull rope (3) is passed through the guide portions (5) on the two housings (1) in a continuously undulating manner.

7. The travel case with convenient expansion and adjustment according to claim 3, characterized in that: Two of the retractable devices (4) are provided, and the two retractable devices (4) are arranged on two opposite sides of the housing (1), and each retractable device (4) is correspondingly provided with two pull ropes (3).

8. The travel case with convenient expansion and adjustment according to claim 3, characterized in that: The retractable device (4) is provided with one, the pull rope (3) is provided with two, the housing (1) is provided with a guide portion (5) connected to the pull rope (3), a plurality of guide portions (5) are provided and are arranged at intervals along the circumference of the housing (1), the guide portions (5) on the two housings (1) are arranged in a staggered manner, and the pull rope (3) is passed through the guide portions (5) on the two housings (1) in a continuously undulating manner.

9. The travel case with convenient expansion and adjustment according to claim 1, characterized in that: A zipper tape structure connecting one of the shells (1) and the telescopic girdle (2) is provided between the two, the zipper structure comprising a first zipper tape connected to the shell (1) and a second zipper tape connected to the telescopic girdle (2), the first zipper tape and the second zipper tape being connected via a zipper head, one end of a drawstring (3) being connected to the second zipper tape, and the other end of the drawstring (3) being connected to the other shell (1); or, a zipper tape structure connecting the two shells (1) and the telescopic girdle (2) is provided between both shells (1) and the telescopic girdle (2), the zipper structure comprising a first zipper tape connected to the shell (1) and a second zipper tape connected to the telescopic girdle (2), the corresponding first zipper tape and the second zipper tape being connected via a zipper head, and the two ends of the drawstring (3) being respectively connected to the two second zipper tapes.

10. A travel case with convenient expansion and adjustment according to any one of claims 1 to 9, characterized in that: The retractable device (4) comprises a base (41) and a rotating cover (42). A connecting shaft (43) is provided at the center of the base (41). A rotatable rotating disk (44) is provided in the base (41). The rotating disk (44) and the connecting shaft (43) are coaxially arranged and spaced apart. A connecting tube (45) connected to the connecting shaft (43) is provided at the center of the rotating cover (42). A first toothed disk (46) and a second toothed disk (47) are provided on facing surfaces of the rotating cover (42) and the rotating disk (44), respectively. When the rotating cover (42) and the rotating disk (44) are engaged with each other, the first toothed disk (46) and the second toothed disk (47) are meshed, so that the rotating cover (42) and the rotating disk (44) are linked. When the rotating cover (42) and the rotating disk (44) are separated, the rotating cover (42) and the rotating disk (44) can rotate independently of each other.

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