An expandable travel bag with retractable handle
The capacity of the travel bag is expanded by lifting the rain cover and fastening the small straps. The problem of insufficient capacity of the travel bag is solved by using counterweights and buckle structure, which improves the convenience of carrying and the protection of items.
Patent Information
- Application Number
- CN202521967067.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-12
AI Technical Summary
Existing travel bags have insufficient capacity, and their mechanical parts are prone to wear and tear, are complicated to use, and pose safety hazards.
By lifting the tarpaulin and fastening the small rope, the female buckle is pushed out of the female buckle, and the outer bag is stretched. The space is expanded by using counterweights and buckle structures, and the tarpaulin prevents items from falling and water from getting in.
It expands the travel capacity, improves the convenience of carrying and the protection of items, and avoids wear and tear on mechanical parts and safety hazards.
Smart Images

Figure CN224670996U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of travel bag technology, specifically to an expandable travel bag with a retractable handle. Background Technology
[0002] Travel bags are tools used to store and carry items needed for travel. They are generally spacious with multiple pockets and are essential for travel. Most travel bags now come with retractable handles to improve their portability.
[0003] Currently, travel bags still have some shortcomings, such as insufficient capacity to meet demand.
[0004] To overcome the problem of insufficient capacity in travel bags, Chinese Patent Document 1 (Publication No.: CN222675626U) discloses a travel bag with an expandable structure. This bag includes a body with an expansion mechanism at its bottom. The expansion mechanism includes a storage rack and an expansion plate. The expansion plate is inserted into the storage rack and has a storage slot. A foldable storage bag is fixedly installed inside the storage slot. In this invention, the user pushes a push plate upwards, causing a positioning pin to move upwards and disengage from the second positioning hole. At this time, the expansion plate inside the storage rack can be pulled outwards. The user can then pull up the foldable storage bag in the storage slot, unfolding it. Items that cannot fit in the main bag can be stored in the foldable storage bag. By incorporating the expansion mechanism, storage capacity can be increased when needed.
[0005] Chinese Patent Document 2 (Publication No.: CN206499088U) discloses a multifunctional travel bag, which includes a travel backpack, a front pocket, shoulder straps, a compass, a tissue box, an earphone mounting hole, Velcro, a zipper, a flip-top, casters, a telescopic rod, and hook slots. The travel backpack has a flip-top at the bottom, with casters at each of the four corners. The telescopic rod is located on the upper right side of the flip-top, and hook slots are located on the handle at the top of the telescopic rod. Zippers are located on the left, right, and top sides of the travel backpack. The front pocket is located on the front of the travel backpack, with its left side fixed to the left shoulder strap and its right side connected to the right shoulder strap via Velcro. The front pocket expands storage space and facilitates the retrieval of items. The hook slots can be used to hang items for drying and also serve a visible purpose. The flip-top assists in using this device as a means of transportation, making it highly practical.
[0006] However, the travel bags currently in use still have some shortcomings. The aforementioned document suggests storing items that cannot fit in the main bag into a foldable storage bag. Although this can increase capacity, this method requires complex mechanical parts, such as positioning pins or springs. These hardware components can easily accelerate the wear and tear of the bag and may also cause injury to the user if touched. They are also quite inconvenient to use. Therefore, the existing structure needs to be improved. Utility Model Content
[0007] The purpose of this invention is to provide an expandable travel bag with a retractable handle to solve the problem of insufficient capacity of travel bags mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an expandable travel bag with a retractable handle, comprising a bag body, the back of which is connected to a telescopic rod. When the travel bag's capacity is insufficient, the rain cover can be lifted, and four sets of small drawstrings can be fastened. These drawstrings cause the female buckle to be pushed outwards from the female buckle, allowing the outer bag to be pulled outwards after being unrestrained, significantly increasing the internal space and allowing for more items to be stored. Afterwards, the drawstrings cause the female buckle to be inserted into the female buckle for positioning, sealing the opening to prevent items from falling out. Finally, the rain cover is released, and under the weight of the counterweight, the rain cover covers the opening to prevent water ingress, thereby increasing the capacity and achieving expansion.
[0009] The bag body has wheels at the bottom, external bags are connected to both sides of the bag body, and rain cover is connected to both sides of the bag body near the external bags. The rain cover is located on the top of the external bags, and expansion mechanisms for expanding travel bag space are provided on both sides of the bag body.
[0010] Furthermore, the bottom of the rain cover is symmetrically connected with counterweights, and the top and bottom of the outer bag are each connected with two sets of small ropes.
[0011] Furthermore, the inner side of the small rope is connected to a female buckle, the side of the outer bag is connected to a female buckle one, and the top and bottom of the outer bag are both connected to female buckles two. The female buckles two, female buckles one, and female buckles form a snap-fit connection.
[0012] Furthermore, the front of the bag body is symmetrically connected with a large rope strap via a pivot, and the front of the bag body is provided with a hook mechanism for convenient carrying of the travel bag. The hook mechanism includes a locking block symmetrically connected to the front of the bag body.
[0013] Furthermore, the back of the package body is symmetrically connected with two card blocks.
[0014] Furthermore, friction plates are connected to the inner sides of both the second and first locking blocks, and L-shaped blocks are connected to the side of the large rope.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This expandable travel bag with a retractable handle allows for expansion when the bag's capacity is insufficient. The rain cover can be lifted, and four small drawstrings can be engaged. These drawstrings cause the male buckle to be pushed outwards from the female buckle, freeing the outer bag from its restraints and allowing it to stretch outwards, significantly increasing the internal space and allowing for more items to be stored. The drawstrings then cause the male buckle to be inserted into the female buckle for positioning, sealing the opening and preventing items from falling out. Finally, the rain cover is released, and under the weight of the counterweight, the rain cover covers the opening to prevent water ingress, thus increasing the capacity and achieving expansion.
[0017] 2. A rain cover is provided, which can cover the opening of the external bag to prevent debris or rainwater from falling into the bag, thus improving the protection of the external bag.
[0018] 3. It is equipped with a counterweight, which can exert a downward force on the rain cover, ensuring that the rain cover will not be blown up by the wind, and further improving the protection of the items inside the outer bag.
[0019] 4. It is equipped with two locking blocks, which can be used to change the position of the large strap, allowing the bag to be carried in two ways: by lifting or by carrying on the back, thus improving the convenience of carrying the travel bag. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall frontal three-dimensional structure of this utility model;
[0021] Figure 2 This is an enlarged three-dimensional structural diagram of the external package of this utility model;
[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the small rope strap of this utility model;
[0023] Figure 4 This is an enlarged three-dimensional structural diagram of the large rope belt of this utility model;
[0024] Figure 5 This is a schematic diagram of the two-part split three-dimensional structure of the card block of this utility model;
[0025] Figure 6 This is a three-dimensional structural diagram of the large rope belt with interchangeable forms of this utility model;
[0026] Figure 7 This is an enlarged three-dimensional structural diagram of the card block of this utility model.
[0027] In the diagram: 1. Bag body; 2. Telescopic rod; 101. External bag; 102. Rain cover; 103. Counterweight; 104. Small rope; 105. Female buckle; 106. Female buckle one; 107. Female buckle two; 201. Large rope; 202. Locking block one; 203. Locking block two; 204. Friction plate; 205. L-shaped block. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1, such as Figures 1-3 The present invention provides the following technical solution to address the problem of insufficient capacity in travel bags: An expansion mechanism is disclosed, comprising a bag body 1, a telescopic rod 2 connected to the back of the bag body 1, wheels at the bottom of the bag body 1, external bags 101 connected to both sides of the bag body 1, a rain cover 102 connected to both sides of the bag body 1 near the external bags 101, the rain cover 102 located at the top of the external bags 101, an expansion mechanism for expanding travel bag space provided on both sides of the bag body 1, counterweights 103 symmetrically connected to the bottom of the rain cover 102, two sets of small ropes 104 connected to the top and bottom of the external bags 101, a female buckle 105 connected to the inner side of the small ropes 104, a female buckle 106 connected to the side of the external bags 101, and a female buckle 2 107 connected to the top and bottom of the external bags 101. The female buckle 2 107, the female buckle 106, and the female buckle 105 form a snap-fit connection.
[0030] When the travel bag's capacity is insufficient, the rain cover 102 can be lifted, and then the four sets of small drawstrings 104 can be fastened. When the small drawstrings 104 are fastened, the male buckle 105 can be pushed out from the side of the female buckle 106. After the male buckle 105 is pushed out, the outer bag 101 is no longer restrained. At this time, the outer bag 101 can be pulled outward, and the outer bag 101 can be extended. When the outer bag 101 is extended, the internal space will be greatly increased, and the user can put more items into the outer bag 101. After that, the small drawstrings... When the male buckle 105 is inserted into the top and bottom of the female buckle 107, the female buckle 105 can be locked in place with the female buckle 107. The small rope 104 can then seal the opening of the outer bag 101 to prevent items inside from falling out. At the same time, the rain cover 102 is released. Under the gravity of the counterweight 103, the rain cover 102 can cover the opening of the outer bag 101, preventing water from entering the outer bag 101, increasing the capacity of the travel bag and achieving an expansion effect.
[0031] Example 2, as follows Figure 1 , Figures 4-7The present invention provides the following technical solution to address the problem of inconvenient carrying of travel bags: a hook mechanism is disclosed: a large rope 201 is symmetrically connected to the front of the bag body 1 via a pivot, and a hook mechanism for convenient carrying of the travel bag is provided at the front of the bag body 1. The hook mechanism includes a first locking block 202 symmetrically connected to the front of the bag body 1, a second locking block 203 symmetrically connected to the back of the bag body 1, friction plates 204 connected to the inner sides of both the second locking block 203 and the first locking block 202, and an L-shaped block 205 connected to the side of the large rope 201.
[0032] When the travel bag is being carried, the bag body 1 can be moved by pulling the telescopic rod 2. The bag body 1 can then move via the rollers at the bottom. An L-shaped block 205 can also be inserted into the bottom of the second locking block 203. After the L-shaped block 205 is inserted into the second locking block 203, it can compress the friction plate 204. The friction plate 204 deforms under pressure, allowing the L-shaped block 205 to slide into the second locking block 203. At this point, the friction plate 204 can be reset by its material. During this reset, friction prevents the L-shaped block 205 from falling out of the second locking block 203 due to its own weight. After the L-shaped block 205 is positioned, the large rope 201 is in place. At the top of the bag body 1, the large rope strap 201 can be pulled to lift the bag body 1, achieving the lifting effect. When the bag body 1 is heavy, the large rope strap 201 can be rotated to insert the L-shaped block 205 from the bottom of the first latch 202. At this time, the large rope strap 201 should be located inside the first latch 202. The L-shaped block 205 can be inserted into the first latch 202 by inserting it into the second latch 203. At this time, the large rope strap 201 will be located at the front of the bag body 1. Then, the user can carry the bag body 1 on their back using the backpack method, achieving the carrying effect of the bag body 1 and improving the convenience of carrying the travel bag.
[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An expandable travel bag with a retractable handle, comprising a bag body (1) having a telescopic rod (2) connected to the back of the bag body (1), characterized in that: The bag body (1) has wheels at the bottom. The bag body (1) is connected to external bags (101) on both sides. The bag body (1) is also connected to rain cover (102) on both sides near the external bags (101). The rain cover (102) is located on the top of the external bags (101). The bag body (1) is provided with an expansion mechanism for expandable travel bag space on both sides.
2. The expandable travel bag with a retractable handle according to claim 1, characterized in that: The bottom of the rain cover (102) is symmetrically connected with a counterweight (103), and the top and bottom of the outer bag (101) are connected with two sets of small ropes (104).
3. An expandable travel bag with a retractable handle according to claim 2, characterized in that: The inner side of the small rope (104) is connected to a female buckle (105), the side of the outer bag (101) is connected to a female buckle (106), and the top and bottom of the outer bag (101) are connected to female buckles (107). The female buckles (107), female buckles (106) and female buckles (105) form a snap-fit connection.
4. An expandable travel bag with a retractable handle according to claim 1, characterized in that: The front of the bag body (1) is symmetrically connected to a large rope (201) via a pivot. The front of the bag body (1) is provided with a hook mechanism for convenient carrying of the travel bag. The hook mechanism includes a locking block (202) symmetrically connected to the front of the bag body (1).
5. An expandable travel bag with a retractable handle according to claim 1, characterized in that: The back of the package body (1) is symmetrically connected with a second card block (203).
6. An expandable travel bag with a retractable handle according to claim 5, characterized in that: The inner sides of both the second card block (203) and the first card block (202) are connected to friction plates (204), and the side of the large rope belt (201) is connected to an L-shaped block (205).
Citation Information
Patent Citations
Multifunctional traveling bag
CN206499088U
Traveling bag with expansion structure
CN222675626U