Travel suitcase
By introducing a support frame, movable plate, and toothed belt structure into the suitcase, combined with electric roller control, the problem of difficulty in moving the suitcase up and down stairs has been solved, enabling smooth movement without lifting and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-03-24
AI Technical Summary
Existing suitcases require considerable effort to lift when going up and down stairs, which is especially inconvenient for people with weaker strength.
A travel bag is designed, comprising a support frame, a movable plate, wheels, and a toothed belt structure. The movable plate and wheel frame are extended by a drive mechanism, and the toothed belt crosses the edge of the step. An optional electric roller can be added to control the speed, enabling smooth movement of the bag without lifting it.
It eliminates the need to lift bags when going up and down stairs, reducing the burden on users, and significantly improving the ease of use for female users in particular.
Smart Images

Figure CN224023040U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of luggage, especially to a travel luggage. BACKGROUND
[0002] The travel luggage is a special container for storing and carrying personal articles when traveling, mainly including two categories of luggage (trolley case) and travel bag, and the existing luggage mainly comprises a box body, a pull rod and a roller, which facilitates movement and reduces load.
[0003] The Chinese patent with the authorized announcement number CN220109298U discloses a travel luggage, which comprises a box body, a pull rod, a vertical block two, a straight cylinder, a rubber sleeve, a corner guard, a cloth belt, a socket one, a socket two, a mesh bag and a rotating structure, so that when the device is used, the vertical block one can be pulled outward to drive the straight rod to move outward, the straight rod drives the block body to move outward, and then the block body moves away from the curved plate, the curved plate is rotated by one hundred and eighty degrees, and personnel can lift the box body through the pull rod and the curved plate, which is convenient for two people to lift the travel luggage, and then female personnel can drive the travel luggage to climb stairs more easily.
[0004] However, the device still has some deficiencies: the device needs to be lifted when going up and down the stairs, which is laborious for the weak, such as women. UTILITY MODEL CONTENT
[0005] The utility model aims at the problems in the background art and provides a travel luggage.
[0006] The technical scheme of the utility model: a travel luggage, comprising a box body, a pull rod is arranged on the box body, and a box cover is movably arranged on the box body;
[0007] A support frame is arranged on the box body, a receiving groove B is arranged on the support frame, an adapter seat is movably arranged in the receiving groove B, and the adapter seat is rotationally connected with a movable plate;
[0008] A driving mechanism is arranged on the box body, and the driving mechanism drives the movable plate to move away from or close to the box body in the working state;
[0009] Two wheel frames are symmetrically arranged on the movable plate, two belt wheels are symmetrically arranged on the wheel frame and rotationally connected with the wheel frame, and a support plate is arranged on the wheel frame.
[0010] Two tooth belts are respectively transmissionally connected with the two belt wheels on the corresponding side, the support plate is located on the inner side of the tooth belt and in sliding contact with the load-bearing end of the tooth belt.
[0011] The box body and the bottom of the box cover are provided with rollers, the box body is provided with a through hole communicating with the inside of the box body, the box body is rotatably provided with a cover for closing the through hole, and the box body is provided with a password lock for locking the box cover and the cover.
[0012] Preferably, the support frame is located in the box body, the support frame is provided with a receiving groove A communicating with the through hole, and the box body is provided with a side hole communicating with the opening of the receiving groove B.
[0013] Preferably, the driving mechanism comprises a sliding seat, a connecting rod, a bidirectional screw rod and a driving assembly, the driving assembly comprises a worm gear and a worm, the number of the sliding seats is two, and the two sliding seats are symmetrically arranged in the receiving groove B and slide along the length direction of the receiving groove B, the receiving groove B is provided with a guide rod penetrating through the sliding seats and being in sliding connection with the sliding seats; the connecting rod comprises two groups, and the two ends of the two groups of connecting rods are rotatably connected with the adapter seat and the sliding seat on the corresponding side respectively; the bidirectional screw rod is rotatably connected with the support frame and arranged in the receiving groove B, the two sliding seats are in threaded connection with the corresponding ends of the bidirectional screw rod respectively, the worm gear is coaxially connected with the bidirectional screw rod, the worm is rotatably connected with the support frame and in meshing connection with the worm gear, and one end of the worm is provided with a crank, and the box body is provided with a circular groove, and the crank is located in the circular groove.
[0014] Preferably, the movable plate is provided with a rotating shaft rotatably connected with the movable plate, the two wheel frames are connected with the corresponding ends of the rotating shaft respectively, and the movable plate is provided with a locking assembly for preventing the rotating shaft from rotating.
[0015] Preferably, the locking assembly comprises a bolt, a sliding block and a spring rod, the rotating shaft is provided with a pin hole radially perpendicular to the rotating shaft, the movable plate is provided with a sliding groove, the sliding block is located in the sliding groove and in sliding connection with the inner wall of the sliding groove, one end of the bolt is inserted into the sliding groove and connected with the sliding block, the other end of the bolt is inserted into the pin hole and in sliding connection with the inner wall of the pin hole, one end of the spring rod is connected with the inner wall of the sliding groove, and the other end of the spring rod is connected with the end of the sliding block away from the bolt.
[0016] Preferably, the wheel frame is provided with an energy storage battery, the pull rod is provided with a speed regulating switch, the wheel frame is provided with an electric roller, and the electric roller is coaxially connected with one of the wheels on the wheel frame.
[0017] Compared with the prior art, the utility model has the beneficial technical effects that:
[0018] The utility model discloses a structure of the luggage case, which comprises a box body, a supporting frame and a pull rod, wherein the box body is provided with a through hole and a flip cover for controlling the opening and closing of the through hole, the supporting frame is provided with a storage slot A, and the pull rod is arranged on the box body and connected with the supporting frame. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of one embodiment in the utility model;
[0020] Figure 2 It is a connecting structure schematic diagram of each component on the supporting frame;
[0021] Figure 3 It is a connecting structure schematic diagram of the driving assembly and the movable plate;
[0022] Figure 4 It is a connecting structure schematic diagram of the rotating shaft and the wheel frame;
[0023] Figure 5 It is an application display diagram of the utility model on the step.
[0024] Reference signs: 1, box body; 101, through hole; 102, round groove; 2, pull rod; 3, box cover; 4, roller; 5, flip cover; 6, supporting frame; 61, storage slot A; 62, storage slot B; 7, guide rod; 8, sliding seat; 9, connecting rod; 10, adapter seat; 11, bidirectional screw; 12, driving assembly; 121, worm wheel; 122, worm; 123, crank; 13, movable plate; 14, fixed seat; 15, rotating shaft; 151, pin hole; 16, wheel frame; 17, electric roller; 18, pulley; 19, toothed belt; 20, support plate; 21, bolt; 22, sliding block; 23, spring rod. DETAILED DESCRIPTION
[0025] Embodiment one
[0026] As Figures 1-5As shown, the utility model provides a kind of travel luggage, including box 1, support frame 6, drive mechanism, wheel frame 16 and toothed belt 19, box 1 is provided with pull rod 2, box 1 is movably provided with lid 3.Support frame 6 is arranged on box 1, support frame 6 is provided with storage groove B62, storage groove B62 is movably provided with adapter seat 10, adapter seat 10 is rotatably connected with fixed seat 14, fixed seat 13 is integrally connected with movable plate 13.Box 1 and the bottom of lid 3 are provided with roller 4, the side of box 1 is provided with through hole 101 which is communicated with its inside, box 1 is rotatably provided with flap 5 for closing through hole 101, box 1 is provided with password lock for locking lid 3 and flap 5.Support frame 6 is located in box 1, support frame 6 is provided with storage groove A61 which is communicated with through hole 101, and box 1 is provided with side hole which is communicated with the opening of storage groove B62.Drive mechanism includes slide 8, connecting rod 9, bidirectional screw rod 11 and drive assembly 12, drive assembly 12 includes worm gear 121 and worm 122, the number of slide 8 is two, and two slides 8 are symmetrically arranged in storage groove B62 and slide along its length direction, guide rod 7 is arranged in storage groove B62, guide rod 7 penetrates slide 8 and is slidably connected with it.Connecting rod 9 includes two groups, and the two ends of two groups of connecting rod 9 are rotatably connected with adapter seat 10 and corresponding side slide 8 respectively.Bidirectional screw rod 11 is rotatably connected with support frame 6 in storage groove B62, two slides 8 are respectively threadedly connected with the corresponding end of bidirectional screw rod 11, worm gear 121 is coaxially connected with bidirectional screw rod 11, worm 122 is rotatably connected with support frame 6 and is engaged with worm gear 121, one end of worm 122 is provided with crank 123, box 1 is provided with circular groove 102, crank 123 is located in circular groove 102, and drive mechanism drives movable plate 13 away from or close to box 1 in working state.Two wheel frames 16 are symmetrically arranged on movable plate 13, and two pulleys 18 rotatably connected with wheel frame 16 are symmetrically arranged on wheel frame 16.Two toothed belts 19 are respectively drivingly connected with two pulleys 18 on the corresponding side, and support plate 20 is arranged on wheel frame 16, support plate 20 is located on the inside of toothed belt 19 and is slidably contacted with the load-bearing end of toothed belt 19.
[0027] In the embodiment, the main storage space of box 1 is used for storing the articles which are not needed to be used frequently, and the articles which are needed to be used frequently are placed in storage groove A61, and after covering lid 3 and flap 5, they are locked by password lock respectively, and the structure of storage groove A61 is convenient for taking the articles which are used frequently.When going up and down the steps, user drives crank 123 to rotate, crank 123 drives worm 122 to rotate, worm 122 drives worm gear 121 and bidirectional screw rod 11 to rotate, so that two slides 8 are synchronously close, two groups of connecting rod 9 synchronously extend adapter seat 10, movable plate 13 and wheel frame 16, then the toothed belt 19 of wheel frame 16 is placed on the ground, and the user can go up and down the steps by the wheel frame 16. Figure 1As shown, the wheel frame 16 is on the side of the box body 1 at its maximum length, thus ensuring that the wheel frame 16 can cross the edges of at least two steps and has enough margin to save. The user can pull the lever 2 to go up or down the steps under the rolling structure formed by the wheel frame 16 and the toothed belt 19.
[0028] Example 2
[0029] like Figure 4 As shown, the travel bag proposed in this utility model, compared with the first embodiment, has a storage battery installed on the wheel frame 16, a speed control switch installed on the pull rod 2, and an electric roller 17 installed on the wheel frame 16. The electric roller 17 is coaxially connected to one of the pulleys 18 on the wheel frame 16.
[0030] In this embodiment, the rotation speed of the electric roller 17 is controlled by a speed control switch, which facilitates active deceleration when the suitcase goes down the steps and assists in climbing the suitcase up the steps, reducing the burden on the user.
[0031] Example 3
[0032] like Figure 3 and Figure 4 As shown, the present invention proposes a travel bag, which, compared with Embodiment 1 or Embodiment 2, features a movable plate 13 with a rotating shaft 15 rotatably connected thereto. Two wheel frames 16 are respectively connected to the corresponding ends of the rotating shaft 15. The movable plate 13 is equipped with a locking assembly to prevent the rotating shaft 15 from rotating. The locking assembly includes a pin 21, a slider 22, and a spring rod 23. The rotating shaft 15 has a pin hole 151 perpendicular to its radial direction. The movable plate 13 has a sliding groove. The slider 22 is located in the sliding groove and is slidably connected to its inner wall. One end of the pin 21 is inserted into the sliding groove and connected to the slider 22, and the other end of the pin 21 is inserted into the pin hole 151 and slidably connected to its inner wall. One end of the spring rod 23 is connected to the inner wall of the sliding groove, and the other end of the spring rod 23 is connected to the end of the slider 22 away from the pin 21.
[0033] In this embodiment, when the wheel frame 16 is retracted, the slider 22 is pulled first. The slider 22 drives the pin 21 to retract and disengage from the pin hole 151. At this time, the spring stores energy and rotates the wheel frame 16 180 degrees. Then the slider 22 is released, the spring releases potential energy and pushes the slider 22 to slide and re-insert the pin 21 into the pin hole 151, thereby blocking the wheel frame 16. When the wheel frame 16 is retracted into the storage groove B62, the toothed belt 19 is inside the storage groove B62, thereby improving the external aesthetics of the device.
[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A travel bag, characterized in that, include: Box body (1), a pull rod (2) is installed on the box body (1), and a box cover (3) is movably installed on the box body (1); Support frame (6), the support frame (6) is set on the box (1), the support frame (6) is provided with storage slot B (62), the storage slot B (62) is movably set with adapter seat (10), the adapter seat (10) is rotatably connected to movable plate (13); The drive mechanism is set on the housing (1). When the drive mechanism is in working state, it drives the movable plate (13) away from or close to the housing (1). Wheel frame (16), two wheel frames (16) are symmetrically arranged on the movable plate (13), and two pulleys (18) symmetrically arranged on the wheel frame (16) and rotatably connected to it; And a toothed belt (19), the two toothed belts (19) are respectively connected to two pulleys (18) on the corresponding side, and a support plate (20) is provided on the wheel frame (16). The support plate (20) is located inside the toothed belt (19) and slides in contact with the load-bearing end of the toothed belt (19).
2. A travel bag according to claim 1, characterized in that, Rollers (4) are provided at the bottom of both the box body (1) and the box cover (3). A through hole (101) communicating with the inside of the box body (1) is provided. A flip cover (5) for closing the through hole (101) is rotatably provided on the box body (1). A combination lock for locking the box cover (3) and the flip cover (5) is provided on the box body (1).
3. A travel bag according to claim 2, characterized in that, The support frame (6) is located inside the box (1). The support frame (6) is provided with a storage groove A (61) that communicates with the through hole (101), and the box (1) is provided with a side hole that communicates with the opening of the storage groove B (62).
4. A travel bag according to claim 1, characterized in that, The drive mechanism includes a slide (8), a connecting rod (9), a two-way lead screw (11), and a drive assembly (12). The drive assembly (12) includes a worm gear (121) and a worm (122). There are two slides (8), which are symmetrically arranged in the storage groove B (62) and slide along its length. A guide rod (7) is provided in the storage groove B (62), which passes through the slide (8) and slides therewith. The connecting rod (9) includes two sets, and the two ends of the two sets of connecting rods (9) are respectively connected to the adapter (10) and the opposite end. The slide (8) on the side is rotatably connected; the double-acting screw (11) is set in the storage groove B (62) and rotatably connected to the support frame (6), the two slides (8) are respectively threaded to the corresponding ends of the double-acting screw (11), the worm wheel (121) is coaxially connected to the double-acting screw (11), the worm (122) is rotatably connected to the support frame (6) and meshes with the worm wheel (121), a crank (123) is set at one end of the worm (122), a circular groove (102) is set on the housing (1), and the crank (123) is located in the circular groove (102).
5. A travel bag according to claim 1, characterized in that, The movable plate (13) is provided with a rotating shaft (15) that is rotatably connected to it, and two wheel frames (16) are respectively connected to the corresponding ends of the rotating shaft (15). The movable plate (13) is provided with a locking component to prevent the rotating shaft (15) from rotating.
6. A travel bag according to claim 5, characterized in that, The locking assembly includes a pin (21), a slider (22), and a spring rod (23). A pin hole (151) perpendicular to the radial direction is provided on the rotating shaft (15). A slide groove is provided on the movable plate (13). The slider (22) is located in the slide groove and is slidably connected to its inner wall. One end of the pin (21) is inserted into the slide groove and connected to the slider (22). The other end of the pin (21) is inserted into the pin hole (151) and is slidably connected to its inner wall. One end of the spring rod (23) is connected to the inner wall of the slide groove. The other end of the spring rod (23) is connected to the end of the slider (22) away from the pin (21).
7. A travel bag according to claim 1, characterized in that, A storage battery is installed on the wheel frame (16), a speed control switch is installed on the pull rod (2), and an electric roller (17) is installed on the wheel frame (16). The electric roller (17) is coaxially connected to one of the pulleys (18) on the wheel frame (16).
Citation Information
Patent Citations
Travel suitcase
CN220109298U