A hinge structure for a luggage and the luggage
By combining the intermediate shaft and connecting rod, and utilizing sliding and rotating units to achieve multi-link motion, the problem of collision of the inner hinge of the bag is solved, and the internal installation and aesthetic design of the hinge are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANTONG DAMAOSHENG NEW MATERIAL TECH CO LTD
- Filing Date
- 2021-11-11
- Publication Date
- 2026-07-21
Smart Images

Figure CN116104376B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of luggage technology, and particularly relates to a hinge structure for luggage and luggage and the luggage itself. Background Technology
[0002] Currently in the luggage industry, the common method for connecting the upper and lower compartments is to use external hinges. Due to structural limitations, the rotation axis of an external hinge is on the outside, effectively preventing collisions and interference between the front and rear compartments when opening and closing. However, if the hinge is placed inside the compartment for aesthetic reasons, the rotation axis shifts to the inside of the compartment. This causes the front and rear covers to collide and press against each other when the compartment is opened, making it impossible to open the compartment normally.
[0003] In home decoration, products such as cabinets and wardrobes that need to be aesthetically pleasing often use common hinges on the market. These hinges can effectively avoid mutual interference caused by the axis being on the inside. Its core principle is to deflect the axis to achieve mutual avoidance. However, these hinges are relatively large and cannot be used on bags and luggage, and they are not very aesthetically pleasing. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to provide a hinge structure for bags and bags, so as to solve the problem that existing hinges cannot be applied to the inside of bags.
[0005] To solve the above problems, the technical solution of the present invention is as follows:
[0006] The present invention provides a hinge structure for bags, comprising:
[0007] intermediate shaft;
[0008] At least two connecting rods, each having a first sliding unit and a first rotating unit at its two ends; the connecting rods are rotatably connected to the intermediate shaft, and the first sliding units of adjacent connecting rods are located on the first and second sides of the intermediate shaft, respectively.
[0009] Two bases are respectively used to fix to the two shells of the outer bag and are respectively located on both sides of the intermediate shaft; each base is provided with a first sliding unit that is slidably connected to the first sliding unit located on the same side of the intermediate shaft, and each base is provided with a second rotating unit that is rotatably connected to the first rotating unit located on the same side of the intermediate shaft.
[0010] The hinge structure for bags of the present invention further includes at least one spacer; the spacer is sleeved on the intermediate shaft and is disposed between two adjacent connecting rods.
[0011] The hinge structure for bags of the present invention includes a link comprising a body and a first extension and a second extension connected to both ends of the body;
[0012] The first extension segment and the second extension segment both extend toward the same side of the main body;
[0013] The first sliding unit is provided on the first extension section;
[0014] The first rotating unit is provided on the second extension section.
[0015] The hinge structure for bags of the present invention has a first sliding unit and a second sliding unit, which are respectively a sliding protrusion and a sliding groove, or the first sliding unit and the second sliding unit are respectively a sliding groove and a sliding protrusion; the sliding direction of the sliding groove is toward the intermediate shaft.
[0016] The hinge structure for bags of the present invention has a first rotating unit and a second rotating unit, which are respectively a rotating protrusion and a rotating hole, or the first rotating unit and the second rotating unit are respectively a rotating protrusion and a rotating hole.
[0017] The hinge structure for bags of the present invention allows the two bases to fit together when the bag is closed.
[0018] The hinge structure for bags of the present invention includes a base comprising a fixing rod and a plurality of connecting protrusions spaced apart on the fixing rod;
[0019] The second sliding unit or the second rotating unit is provided between adjacent connecting protrusions.
[0020] The present invention provides a hinge structure for bags, wherein the base is provided with mounting holes for connecting to the outer shell of the bag.
[0021] A bag according to the present invention includes the hinge structure for a bag as described in any one of the above claims.
[0022] Because the present invention adopts the above technical solution, it has the following advantages and positive effects compared with the prior art:
[0023] One embodiment of the present invention involves setting two bases respectively mounted on the two shells of an outer bag, and setting several connecting rods rotatably connected to an intermediate shaft. Each connecting rod has a first sliding unit and a first rotating unit at both ends, with adjacent connecting rods arranged in opposite directions. These connecting rods are slidably and rotatably connected to the bases on both sides via second sliding units and second rotating units. The axis of the intermediate shaft is not fixed. As the two shells of the outer bag gradually open, the first sliding unit and first rotating unit at both ends of each connecting rod slide and rotate with the corresponding two bases. The axis of the intermediate shaft shifts with the opening angle, approximating multi-link motion, thus achieving avoidance between the two shells. This effectively solves the collision interference between the two shells caused by installing hinges on the inside of the bag, and addresses the problem that existing hinges cannot be applied to the inside of bags. Attached Figure Description
[0024] Figure 1 This is an exploded view of the hinge structure for bags according to the present invention;
[0025] Figure 2 This is a schematic diagram of the closed state of the hinge structure for bags according to the present invention;
[0026] Figure 3 This is a cross-sectional view of the closed state of the hinge structure for bags according to the present invention;
[0027] Figure 4 This is a schematic diagram of the hinge structure for bags of the present invention in a semi-open state.
[0028] Figure 5 This is a cross-sectional view of the hinge structure for bags of the present invention in a semi-open state.
[0029] Figure 6 This is a schematic diagram of the fully open state of the hinge structure for bags according to the present invention;
[0030] Figure 7 This is a cross-sectional view of the hinge structure for bags of the present invention in its fully open state.
[0031] Figure 8 This is a schematic diagram of the bag in the half-open state according to the present invention.
[0032] Explanation of reference numerals in the attached drawings: 1: base; 101: fixing rod; 102: connecting protrusion; 2: connecting rod; 201: body; 202: first extension section; 203: second extension section; 3: sliding protrusion; 4: rotating protrusion; 5: sliding groove; 6: rotating hole; 7: intermediate shaft; 8: spacer; 9: mounting hole; 10: bag. Detailed Implementation
[0033] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the hinge structure for bags and the bags themselves, based on the present invention. The advantages and features of the present invention will become clearer from the following description and claims.
[0034] Example 1
[0035] See Figures 1 to 7 In one embodiment, a hinge structure for a bag includes a central shaft 7, at least two connecting rods 2, and two bases 1.
[0036] Each link 2 has a first sliding unit and a first rotating unit at both ends. Each link 2 is rotatably connected to the intermediate shaft 7, and the first sliding units of adjacent links 2 are located on the first and second sides of the intermediate shaft 7, respectively.
[0037] Two bases 1 are used to fix the outer casing of the bag to the two shells respectively, and are located on both sides of the intermediate shaft 7. Each base 1 is provided with a first sliding unit that is slidably connected to a first sliding unit located on the same side of the intermediate shaft 7, and each base 1 is provided with a second rotating unit that is rotatably connected to a first rotating unit located on the same side of the intermediate shaft 7.
[0038] This embodiment uses two bases 1 mounted on the two outer shells of the bag, and several connecting rods 2 rotatably connected to an intermediate shaft 7. Each connecting rod 2 has a first sliding unit and a first rotating unit at both ends, with adjacent connecting rods 2 arranged in opposite directions. They are slidably and rotatably connected to the bases 1 on both sides via second sliding units and second rotating units. The axis of the intermediate shaft 7 is not fixed. As the two outer shells of the bag gradually open, the first sliding unit and first rotating unit at both ends of each connecting rod 2 slide and rotate with the corresponding two bases 1. The axis of the intermediate shaft 7 shifts with the opening angle, approximating the movement of multiple connecting rods 2, thus achieving avoidance between the two shells. This effectively solves the collision interference between the two shells caused by installing hinges on the inside of the bag, and addresses the problem that existing hinges cannot be applied to the inside of bags.
[0039] The following is a further description of the specific structure of the hinge structure for bags in this embodiment:
[0040] In this embodiment, the hinge structure may further include at least one spacer 8, which may be a ring-shaped member. The spacer 8 is sleeved on the intermediate shaft 7 and is located between two adjacent connecting rods 2, that is, it is used to separate the two adjacent connecting rods 2 to avoid the problem of difficulty in opening and closing caused by the relative movement of adjacent connecting rods 2. The number of spacers 8 is specifically determined according to the number of connecting rods 2, and may be one less than the number of connecting rods 2. For example, if there are three connecting rods 2, then there are two spacers 8.
[0041] In this embodiment, the connecting rod 2 includes a body 201 and a first extension 202 and a second extension 203 connected to both ends of the body 201. The extension directions of both the first extension 202 and the second extension 203 are towards the same side of the body 201. A first sliding unit is provided on the first extension 202, and a first rotating unit is provided on the second extension 203. Since both extensions face the same side, and in conjunction with the second sliding unit, the hinge structure of this embodiment can form a multi-link 2 motion, thereby obtaining the desired motion trajectory.
[0042] See Figures 2 to 4 In this embodiment, the first sliding unit and the second sliding unit are a sliding protrusion 3 and a sliding groove 5, respectively; or, the first sliding unit and the second sliding unit are a sliding groove 5 and a sliding protrusion 3, respectively. The sliding direction of the sliding groove 5 is towards the intermediate shaft 7. The sliding protrusion 3 can be a cylinder extending from both sides of the first extension section 202, and the sliding groove 5 is two grooves corresponding to the cylinders on both sides.
[0043] Furthermore, the first rotating unit and the second rotating unit are respectively a rotating protrusion 4 and a rotating hole 6, or the first rotating unit and the second rotating unit are respectively a rotating protrusion 4 and a rotating hole 6. The rotating protrusion 4 can also be a cylinder extending from both sides of the second extension 203, and the rotating hole 6 is two rotating holes 6 corresponding to the cylinders on both sides.
[0044] In this embodiment, the body 201, the first extension 202, the sliding protrusion 3, the second extension 203, and the rotating protrusion 4 are integrally formed.
[0045] In this embodiment, when the bag is closed, the two bases 1 fit together, which reduces the size required for the hinge structure and saves internal space in the bag.
[0046] In this embodiment, the base 1 includes a fixing rod 101 and a plurality of connecting protrusions 102 spaced apart on the fixing rod 101. The opposing surfaces between adjacent connecting protrusions 102 are provided with the aforementioned sliding grooves 5 or rotating holes 6.
[0047] In this embodiment, the base 1 is provided with mounting holes 9 for connecting with the shell of an external bag, so as to facilitate the connection between the hinge structure and the bag.
[0048] Example 2
[0049] See Figure 8This embodiment provides a bag, including the hinge structure for bags described in Embodiment 1 above. Two bases 1 are respectively installed on the two shells of the bag 10, and several connecting rods 2 are rotatably connected to a central shaft 7. Each connecting rod 2 has a first sliding unit and a first rotating unit at both ends, with adjacent connecting rods 2 arranged in opposite directions. They are slidably and rotatably connected to the bases 1 on both sides via second sliding units and second rotating units. The axis of the central shaft 7 is not fixed. As the two shells of the bag 10 gradually open, the first sliding unit and first rotating unit at both ends of each connecting rod 2 slide and rotate with the corresponding two bases 1, respectively. The axis of the central shaft 7 shifts with the opening angle, approximating the movement of multiple connecting rods 2, thus achieving avoidance between the two shells. This effectively solves the collision interference between the two shells caused by installing the hinge on the inside of the bag 10, and solves the problem that existing hinges cannot be applied to the inside of bags.
[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.
Claims
1. A hinge structure for bags, characterized in that, include: intermediate shaft; At least two connecting rods, each having a first sliding unit and a first rotating unit at its two ends; the connecting rods are rotatably connected to the intermediate shaft, and the first sliding units of adjacent connecting rods are located on the first and second sides of the intermediate shaft, respectively. Two bases are respectively used to fix to the two shells of the outer bag and are respectively located on both sides of the intermediate shaft; each base is provided with a second sliding unit that is slidably connected to the first sliding unit located on the same side of the intermediate shaft, and each base is provided with a second rotating unit that is rotatably connected to the first rotating unit located on the same side of the intermediate shaft. The first sliding unit and the second sliding unit are respectively a sliding protrusion and a sliding groove, or the first sliding unit and the second sliding unit are respectively a sliding groove and a sliding protrusion; the sliding direction of the sliding groove is towards the intermediate shaft; The first rotating unit and the second rotating unit are respectively a rotating protrusion and a rotating hole, or the first rotating unit and the second rotating unit are respectively a rotating hole and a rotating protrusion.
2. The hinge structure for bags as described in claim 1, characterized in that, It also includes at least one spacer; the spacer is sleeved on the intermediate shaft and is located between two adjacent connecting rods.
3. The hinge structure for bags as described in claim 1, characterized in that, The connecting rod includes a body and a first extension and a second extension connected to both ends of the body. The first extension segment and the second extension segment both extend toward the same side of the main body; The first sliding unit is provided on the first extension section; The first rotating unit is provided on the second extension section.
4. The hinge structure for bags as described in claim 1, characterized in that, When the bag is closed, the two bases are in contact with each other.
5. The hinge structure for bags as described in claim 1, characterized in that, The base includes a fixing rod and a plurality of connecting protrusions spaced apart on the fixing rod; The second sliding unit or the second rotating unit is provided between adjacent connecting protrusions.
6. The hinge structure for bags as described in claim 1, characterized in that, The base is provided with mounting holes for connecting to the shell of an external bag.
7. A type of bag, characterized in that, Includes the hinge structure for bags as described in any one of claims 1-6.