CN220369625U

CN220369625U - Telescopic brace structure and luggage case thereof

Info

Publication number: CN220369625U
Application number: CN202321353305.1U
Authority: CN
Inventors: 邓燕东
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2024-01-23
Anticipated expiration: 2033-05-31

Abstract

The utility model discloses a telescopic strap structure, which comprises a first mounting shell, a second mounting shell, a spiral spring and a strap, wherein the strap comprises a movable end and a fixed end; the first shell is provided with a first opening, and the fixed end of the brace passes through the first opening and is fixedly connected with the first shell; the second shell is provided with a hollow cavity and a second opening communicated with the cavity; a central shaft is arranged in the cavity, and a winding drum is sleeved outside the side surface of the central shaft; the spiral spring is arranged between the winding drum and the central shaft, one end of the spiral spring is fixedly connected with the central shaft, and the other end of the spiral spring is fixedly connected with the winding drum; the movable end of the brace passes through the second opening and is fixedly connected with the winding cylinder; the suitcase has the advantages of reasonable structure, good practicability, telescopic braces, detachable straps and capability of being buckled around the suitcase after being detached, so that the firmness of the suitcase during consignment can be improved, and the suitcase is convenient for people to carry and is beneficial to popularization. The utility model further discloses a luggage case with the telescopic strap structure, which is high in flexibility and practicability.

Description

Telescopic brace structure and luggage case thereof

Technical Field

The utility model relates to the technical field of suitcase traveling appliances, in particular to a telescopic strap structure applied to a suitcase.

Background

The existing bags are generally divided into three types, namely a backpack body with braces, such as a backpack, a single shoulder bag, a waist bag and the like; bag bodies with straps and ties, such as tie-bar bags, which mostly have a rigid plastic base; a case, such as a luggage case, having a pull rod. Although the bags provide great help for people to travel, the bags have a plurality of inconveniences in detail. For example, the shoulder straps of the bag products are mostly exposed outside directly, and cannot be contracted when not in use, so that the shoulder straps are not only easy to dirty and unattractive, but also the shoulder straps exposed outside are easy to wind in the carrying process of the bag body; the box is a product, only the pull rod is provided, and the pull rod is not provided with the braces, so that the box cannot enjoy the convenience brought by the braces in the use process, for example, when the user needs to climb stairs or jolt road sections in a way, the user can carry the box by the braces more conveniently than dragging the box, and when the box is carried, the user often needs to additionally prepare ropes to bind the box with a fixed object, and the like.

Disclosure of Invention

Aiming at the defects and problems in the prior art, the utility model aims to provide a telescopic brace structure so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the telescopic strap structure comprises a first mounting shell, a second mounting shell, a spiral spring and a strap, wherein the strap comprises a movable end and a fixed end; the first shell is provided with a first opening, and the fixed end of the strap passes through the first opening and is fixedly connected with the first shell; the second shell is provided with a hollow cavity and a second opening communicated with the cavity; a central shaft is arranged in the cavity, and a winding drum is sleeved outside the side surface of the central shaft; the scroll spring is arranged between the winding drum and the central shaft, one end of the scroll spring is fixedly connected with the central shaft, and the other end of the scroll spring is fixedly connected with the winding drum; the movable end of the brace passes through the second opening and is fixedly connected with the winding cylinder, and the redundant brace is wound on the annular side surface of the winding cylinder.

Further, the left end and the right end of the annular side face of the winding cylinder are symmetrically provided with side baffle plates.

Further, the first mounting shell is connected with the second mounting shell through a connecting plate.

Further, the second mounting shell comprises a shell cover, and the shell cover is arranged on one side, far away from the second opening, of the cavity.

Further, the first installation shell comprises a fixing groove, the fixing groove is communicated with the first opening, and a fixing rod connected with the fixing end of the strap is arranged in the fixing groove.

Further, the braces are provided with sliding adjusting buckles, and the fixed ends extend out of the first openings after extending into the first openings and bypassing the fixed rods and are fixed to one ends of the sliding adjusting buckles.

Further, the movable end and the fixed end are respectively one end of two sections of braces, the opposite end of the movable end is connected with a male buckle, and the opposite end of the fixed end is connected with a female buckle matched with the male buckle.

Further, a female buckle groove for accommodating the female buckle is formed in the first mounting shell; and the second installation shell is provided with a male buckle groove for accommodating the male buckle.

Further, the device further comprises a reinforcing plate, wherein the reinforcing plate is sleeved on one side, far away from the first opening or the second opening, of the first shell or the second shell.

The luggage case with the telescopic strap structure comprises a hard case body or a hard case body, wherein the outer surface of the case body or the case body is provided with a containing groove for containing a first installation case and a second installation case, the first installation case and the second installation case are inserted in the containing groove and fixedly connected with the case body or the case body, and when in insertion, the first opening and the second opening face the outer surface of the case body or the case body.

Compared with the prior art, the utility model has the beneficial effects that:

according to the telescopic strap structure, the center shaft, the fixed rod, the winding drum and the scroll spring are added, and the strap exposed outside the first shell and the second shell is pinched and pulled, so that the strap wound on the annular side face of the winding drum can be pulled out, a user can use the strap conveniently, and after the strap is used, the winding drum can wind the extended strap under the winding force of the coil spring only by loosening the strap. The luggage bag is small in structure size, does not occupy excessive space when being arranged on the luggage bag, is more invisible when the braces are not used, and does not affect the appearance. Through our improvement, make case and bag more nimble convenient when using, the application scene is wider. Secondly, the braces segmentation sets up the separation design of public box and first casing and second casing for the braces can detain again around the case and bag round, and then can increase the firm degree when case and bag consignment, and also be convenient for people's carry and carry, do benefit to the popularization.

Drawings

FIG. 1 is a perspective view of embodiment 1 of the present utility model;

FIG. 2 is a cross-sectional view of embodiment 1 of the present utility model;

FIG. 3 is a bottom view of embodiment 2 of the present utility model;

FIG. 4 is a schematic view showing a structure of the luggage case according to embodiment 2 of the present utility model;

fig. 5 is a perspective view of a second housing 3' according to embodiment 3 of the present utility model;

fig. 6 is a perspective view of a first housing 6' according to embodiment 3 of the present utility model;

FIG. 7 is an exploded view of example 3 of the present utility model;

fig. 8 is a schematic view showing a structure of embodiment 3 of the present utility model mounted on a luggage case.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The utility model will be further described with reference to the accompanying drawings and detailed description below:

example 1: as shown in fig. 1-2, the utility model discloses a specific telescopic strap structure, which comprises a connecting plate 1, a second mounting shell 3, a middle shaft 4, a first mounting shell 6, a fixing rod 7, straps 8, side baffle plates 9, a winding barrel 10 and a scroll spring 11. The first housing 6 is provided with a first opening 60 and a fixing groove 61, the fixing groove 61 communicates with the first opening 60, and the fixing lever 7 is provided in the fixing groove 61. The second housing 3 is provided with a hollow cavity 31 and a second opening 30 communicating with the cavity 31; the cavity 31 is used for setting the center shaft 4. The middle shaft 4 is a shaft body with a columnar middle part and square structure at two ends. The square structure end makes the middle shaft capable of being clamped into the cavity 31 without rotation, and the columnar middle shaft facilitates the installation of the spiral spring 11. In this embodiment, only one of the shape and structure of the central shaft is disclosed, and in some embodiments, the central shaft may be a combination of two or more components or other shapes. The annular side surface of the center shaft 4 is sleeved with a winding drum 10, a scroll spring 11 is arranged between the center shaft 4 and the winding drum 10, one end of the scroll spring is fixed on the center shaft 4, and the other end of the scroll spring is fixed on the winding drum 10. The first mounting shell 6 is connected with the second mounting shell 3 through the connecting plate 1.

The strap 8 is a single strap, and has a movable end and a fixed end, the fixed end is mounted on the fixed rod 7 and extends out of the first opening 60, the movable end enters the second mounting shell 3 from the second opening 30 to be connected with the winding drum 10, and the redundant strap is wound on the annular side surface of the winding drum 10.

The connection plate 1, the first mounting case 6, and the second mounting case 3 may be separate members and joined by caulking, snap-fit, screw connection, or the like. In some embodiments, the connection plate 1 may also be integrally formed with the first mounting case 6 or the second mounting case 3. In this embodiment 1, the connection board 1, the first installation shell 6 and the second installation shell 3 are in an integral structure, so that the connection stability is better. Next, the second opening 30 of the second mounting case 3 in embodiment 1 is elongated and allows only the back strap 8 to go in and out, because the second opening 30 faces the outside of the case when the second housing 3 is mounted on the case, and the other parts of the second housing 3 are mostly inserted inside the case. The second mounting case 3 is closed except for the second opening 30. The strap telescopic structure of the second mounting shell 3 can be prevented from being exposed, and the aesthetic property of the strap telescopic structure is improved while the strap telescopic structure is protected. At the same time, the second opening 30 is not satisfactory for the installation of the bottom bracket 4, the side flaps 9, the winding drum 10, and the spiral spring 11. Accordingly, the second mounting shell 3 needs to be provided with a mounting opening for mounting the strap telescopic structure, and the mounting opening is disposed on a side of the cavity 31 away from the second opening 30 and is configured with a housing cover 5 for sealing. As shown in the drawing, the cover 5 is fixed to the second mounting case 3 by screws. The detachable structure of the shell cover 5 facilitates the disassembly and maintenance of the centering shaft 4, the winding drum 10 and the scroll spring 11 in the later stage. Similarly, in some embodiments, the first housing 6 can also have a cover that functions as the cover 5.

In some embodiments, the second opening 30 of the second mounting case 3 is sufficient for mounting the bottom bracket 4, the side flaps 9, the winding drum 10, and the spiral spring 11, but the strap telescoping structure is exposed to the outside, thereby affecting the aesthetic appearance. At this time, the second opening 30 may be covered by the connecting piece 1, and the connecting piece 1 is further provided with a long and narrow opening communicating with the second opening 30 for extending the back strap 8. In this case, the structure of the cover 5 can be eliminated, and the second mounting case 3 is detachably connected to the connector 1. Similarly, in some embodiments, the first housing 6 can also have a similar structure.

Further, the side baffle plates 9 are arranged at the left end and the right end of the annular side face of the winding drum 10, the side baffle plates 9 are used for limiting the axial movement of the scroll spring 11 and also can be used for limiting the axial movement of the strap 8 when the winding drum 10 is wound, so that the strap 8 and the scroll spring 11 are prevented from shifting in the winding process of the winding drum 10 in a rotating manner, and the strap 8 is prevented from stretching. The side fence 9 of this embodiment 1 is mainly used to encapsulate and restrict the axial movement of the spiral spring 11. Specifically, the side baffle 9 on one side is integrally formed with the winding drum 10. When the spiral spring 11 is installed, the spiral spring 11 is fixed firstly, then the spiral spring 11 is packaged by the side baffle 9 on the other side, and finally the spiral spring is locked by a clamping piece.

Furthermore, the embodiment 1 further has a reinforcing plate 2, wherein the reinforcing plate 2 is sleeved on one side of the first housing 6, the second housing 3 and the connecting plate 1 away from the first opening 60 and the second opening 30, and the reinforcing plate 2 is an integral plate material and is matched with the shapes of the first housing 6, the second housing 3 and the connecting plate 1. The reinforcing plate 2 is fastened to the first and second housings 6, 3 by screws. The reinforcing plate 2 enables the connection strength of the first shell 6, the second shell 3 and the connecting plate 1 to be better, and deformation of the connecting plate 1 in the using process is avoided.

The fixing screws 71 are symmetrically meshed with the front side and the rear side of the fixing rod 7, the fixing screws 71 are convenient to mount and fix or detach the fixing rod 7, the braces 8 are preferably made of nylon webbing, the braces 8 made of the nylon webbing are good in elasticity and wear resistance, and the braces made of other materials are not excluded.

Example 2: as shown in fig. 2 to 4, embodiment 2 is added with a slide adjusting buckle 12 on the basis of embodiment 1, and the fixed end of the strap 8 is extended from the first opening 60, wound around the fixing rod 7, extended from the first opening 60, and fixed to one end of the slide adjusting buckle 12. The sliding adjusting buckle 12 can adjust the whole length of the brace 8 by sliding on the brace 8, further enhance the flexibility of the brace and enlarge the application range. Fig. 4 is a schematic view of embodiment 2 mounted on a luggage case.

Example 3: as shown in fig. 4 to 8 of the specification, the first housing 6 'and the second housing 3' may be two independent components, which are respectively installed when being installed on the case, and the positions and distances of the two components are set according to the actual needs of the user. The first housing 6 'and the second housing 3' may be separately provided with corresponding reinforcing plates.

Further, the strap 8 'may be two independent straps 81, 82, the movable end of the strap 8' is located on the strap 81, and the fixed end is located on the strap 82. In this embodiment 3, as shown in the drawing, a first opening 60 'is formed in a first housing 6', a fixed end of a strap 82 'is fixed to the first housing 6' by a screw, the other end of the strap 82 'opposite to the fixed end extends out of the first opening 60', and after the strap is extended out, a female buckle 13 is disposed at the end. The first installation shell 6 'is provided with a female buckle groove 62' for accommodating the female buckle 13;

the second housing 3 'is provided with a hollow cavity 31' and a second opening 30 'communicating with the cavity 31'; and a cover 5 'for facilitating the installation of the central shaft 4', the side flaps 9', the winding drum 10', and the spiral springs. The installation of each accessory is referred to in embodiment 1, wherein the movable end of the strap 81 is fixedly connected with the winding drum 10', and the redundant strap is wound on the annular side surface of the winding drum 10'. The end of the carrying strap 81 opposite the movable end protrudes from the second opening 30' and is provided with a pin 14 cooperating with the box 13. The second mounting shell 3 'is provided with a male buckle groove 32' for accommodating the male buckle 14. In some cases, the component configurations of embodiment 3 are deformed, added or reduced, and reference is made to embodiments 1 and 2, such as the reinforcing plate.

The utility model also discloses a piece of luggage with the telescopic strap structure, which is an existing pull rod bag with a hard injection molding bottom shell. When the bottom shell is used, the side facing the ground or the back of a human body is provided with a containing groove for containing and installing the first installation shell and the second installation shell. Further, when the telescopic strap structure is the structure shown in embodiment 1, the bottom shell further includes a groove matching with the shapes of the connecting plate 1 and the reinforcing plate 2. The first opening 60, the second opening 30 and the connection plate 1 face the outer surface of the bottom shell and the reinforcing plate 2 faces the inner side when mounted. The first mounting shell 6 and the second mounting shell 3 are fixedly connected with the bottom shell through a screw or rivet and other connecting modes. Further, in order to make the telescopic braces structure more beautiful, the outer side of the telescopic braces structure after installation is flush with the outer surface of the same side of the bottom shell.

The utility model also discloses a suitcase with the telescopic strap structure, and the suitcase is provided with a suitcase body 100 which is made of a hard injection molding material. As shown in fig. 4 of the specification, when the telescopic strap structure is the structure shown in embodiment 2, the case 100 further includes a groove matching with the shape of the connecting plate 1 and the reinforcing plate 2. The first opening 60, the second opening 30 and the connection plate 1 face the outer surface of the bottom shell and the reinforcing plate 2 faces the inner side when mounted. The first mounting case 6 and the second mounting case 3 are fixedly connected with the case 100 by means of a screw or rivet. Further, in order to make the telescopic braces structure more beautiful, the outer side of the telescopic braces structure after installation is flush with the outer surface of the same side of the bottom shell. As shown in fig. 8 of the specification, when the telescopic harness structure is the structure shown in embodiment 3, the first opening 60 'and the second opening 30' are installed toward the outer surface of the case 100', and if a reinforcing plate is provided, the reinforcing plate is provided inside the case 100'.

In some embodiments, the receiving groove may also serve as the first housing, the second housing. The central shaft 4', the spiral spring 11', the winding drum 10', the fixing rod 7', and the movable and fixed ends of the braces 81 and 82 are disposed in the inner cavity of the accommodating groove, and in order to avoid the exposure of the braces 8, the accommodating groove serving as the second housing needs to be provided with a connecting plate, and the design principle of the connecting plate can refer to a certain embodiment listed in embodiment 1. The connection plate is detachably connected to the case 100'.

When the spiral spring type winding drum is used, a user can pinch the braces 8 or the braces 81 exposed out of the box body or the shell and drag the braces 8 or the braces 81, so that the braces 8 or the braces 81 wound on the annular side face of the winding drum 10 'can be pulled to extend, and when the spiral spring type winding drum is used, the user can wind the extended braces under the winding force of the spiral spring 11' only by loosening the braces 8 or the braces 81. When the braces 81 and 82 are fastened by the male and female fasteners, the braces 81 and 82 can be combined into a whole brace 8 for use.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.

Claims

1. The telescopic strap structure comprises a first mounting shell, a second mounting shell, a spiral spring and a strap, and is characterized in that the strap comprises a movable end and a fixed end; the first mounting shell is provided with a first opening, and the strap fixing end penetrates through the first opening and is fixedly connected with the first mounting shell; the second installation shell is provided with a hollow cavity and a second opening communicated with the cavity; a central shaft is arranged in the cavity, and a winding drum is sleeved outside the side surface of the central shaft; the scroll spring is arranged between the winding drum and the central shaft, one end of the scroll spring is fixedly connected with the central shaft, and the other end of the scroll spring is fixedly connected with the winding drum; the movable end of the brace passes through the second opening and is fixedly connected with the winding cylinder, and the redundant brace is wound on the annular side surface of the winding cylinder.

2. The telescopic brace structure according to claim 1, wherein side stoppers are symmetrically provided at left and right ends of the annular side surface of the winding drum.

3. The telescopic harness structure of claim 1, wherein the first and second mounting shells are connected by a connecting plate.

4. The telescopic harness structure of claim 1, wherein the second mounting housing includes a housing cover disposed on a side of the cavity remote from the second opening.

5. The telescopic strap structure of claim 1, wherein the first mounting shell includes a fixing slot, the fixing slot is in communication with the first opening, and a fixing rod connected to the strap fixing end is disposed in the fixing slot.

6. The telescopic strap structure of claim 5, wherein the strap is provided with a sliding adjustment buckle, and the fixed end extends out of the first opening after bypassing the fixed rod and is fixed to one end of the sliding adjustment buckle.

7. The telescopic strap structure of claim 1, wherein the movable end and the fixed end are one end of two strap sections respectively, the opposite ends of the movable end are connected with a male buckle, and the opposite ends of the fixed end are connected with a female buckle matched with the male buckle.

8. The telescopic strap structure of claim 7, wherein the first mounting shell is provided with a female buckle slot for accommodating a female buckle; and the second installation shell is provided with a male buckle groove for accommodating the male buckle.

9. The telescopic harness structure of claim 1, further comprising a reinforcing plate, wherein the reinforcing plate is sleeved on a side of the first or second mounting shell away from the first or second opening.

10. A luggage case comprising the telescopic strap structure of any one of claims 1 to 8, comprising a hard case body or a hard shell, wherein the outer surface of the case body or the shell is provided with a containing groove for containing a first installation shell and a second installation shell, the first installation shell and the second installation shell are inserted into the containing groove and fixedly connected with the case body or the shell, and when in insertion, the first opening and the second opening face the outer surface of the case body or the shell.