An expansion structure of a trolley case

Abstract

The utility model discloses an extension structure of trolley case relates to trolley case technical field, aims at solving the technical problem of more portable goods will be inconvenient to travel. Its technical scheme main points are: including the box, the top of box is provided with the boss, the boss swing joint has the trolley telescopic subassembly, its characterized in that: the top of trolley telescopic subassembly is provided with the connecting piece, is provided with the storage bag on the connecting piece, the both ends of storage bag are connected in the both sides of box through fixed component, the fixed component includes two upper fixed blocks and two lower fixed blocks, the upper fixed block and lower fixed block set up in the one side of storage bag and box respectively, all are seted up on the upper fixed block and have the upper groove, the upper groove elasticity is connected with the fixed link, all are seted up on the lower fixed block and have the lower groove that the fixed link inserts. The utility model discloses the purpose lies in providing an extension structure of trolley case.

Description

Technical Field

[0001] This utility model relates to a rolling suitcase, and more specifically, to an extension structure for a rolling suitcase. Background Technology

[0002] A rolling suitcase is a box used to carry and store items. It has a pull rod on the side and wheels on the bottom to facilitate dragging and reduce the difficulty for users to carry luggage when traveling.

[0003] Chinese Patent Announcement CN222997511U discloses a composite case structure for a trolley case. Its key technical features include a trolley case body. The trolley case body is characterized by: two symmetrical mounting slots fixedly connected to its lower surface; two symmetrical locking blocks movably connected to the inner side of each mounting slot; several locking posts located on opposite sides of the two mounting slots; a fixing block fixedly connected to the end of each locking post away from the mounting slot; a spring on the outer surface of each locking post; an elastic connection between the fixing block and the mounting slot via the spring; a locking post passing through the mounting slot and locking block on its side near the mounting slot; a locking block engaging with the mounting slot via the locking post; and a caster wheel located below each locking block.

[0004] The above technical solution effectively reduces the problem of the composite box moving due to damage to the universal wheels, improves the stability and efficiency of movement, and reduces the risk of damage caused by vibration. However, when people travel, they carry a lot of items. What cannot fit in the suitcase will be placed in a backpack or laptop bag. The backpack or laptop bag will be attached to the handle of the suitcase or carried by the handle. Bags attached to the handle are easy to fall off. If there are many items carried by the hand, it will be inconvenient to travel. When you need to take out items from the backpack, you have to take the backpack off, which causes inconvenience to travel.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an expansion structure for a suitcase.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an expansion structure for a trolley case, including a case body, a boss on the top of the case body, and a movably connected pull rod telescopic assembly, characterized in that: a connector is provided on the top of the pull rod telescopic assembly, a storage bag is provided on the connector, the two ends of the storage bag are connected to the two sides of the case body by a fixing assembly, the fixing assembly includes two upper fixing blocks and two lower fixing blocks, the upper fixing blocks and the lower fixing blocks are respectively provided on one side of the storage bag and the case body, each upper fixing block has an upper groove, and a fixing rod is elastically connected to the upper groove, each lower fixing block has a lower groove for the fixing rod to be inserted.

[0008] By adopting the above technical solution: the fixing components on both sides establish a connection between the case and the storage bag. Specifically, the fixing rod on the upper fixing block is inserted into the lower groove of the lower fixing block, and then connected to the telescopic pull rod assembly through the connector on the storage bag. The connector is Velcro or a strip with buckles, etc. After the storage bag is fixed, the telescopic pull rod assembly is pulled to a height suitable for the user. The storage bag is made of knitted fabric or ordinary cloth, etc. When the telescopic pull rod assembly is pulled, the storage bag is also pulled up accordingly through the connector. At this time, the storage bag can hold the backpack or computer bag and other items needed by the user when traveling, without having to carry them by hand.

[0009] The present invention is further configured such that: the telescopic rod assembly includes two sleeves, the surface of the boss is provided with a movable groove for inserting the sleeves, a sleeve rod is sleeved on each of the two sleeves, a pull rod is fixedly connected to the two sleeve rods, and the connecting member is provided on the pull rod.

[0010] The present invention is further configured such that: both sleeves are provided with a plurality of circular holes, the circular holes are equidistantly distributed, a locking base plate is fixedly connected to each circular hole, a locking rod is elastically connected to the locking base plate facing the sleeve rod, and a locking groove is provided on the sleeve rod for the locking rod to be inserted.

[0011] The present invention is further configured such that: a fixing spring is provided in the upper groove, and one end of the fixing spring is fixedly connected to the fixing rod.

[0012] The present invention is further provided with a fixing handle on the surface of each fixing rod.

[0013] The present invention is further provided with connecting pieces on the two fixing rods on the same side.

[0014] The present invention has the following advantages: 1. The storage bag can hold backpacks or computer bags and other items needed by the user when traveling, so that there is no need to carry them by hand, which is convenient for travel.

[0015] 2. The fixing components utilize the spring force to insert the fixing rod into the lower groove, and the two fixing rods on the same side have connecting pieces, which can stably establish the connection between the box and the storage bag.

[0016] 3. The fixing rod is equipped with a fixing handle, which makes it easy to insert or pull it out of the lower slot to connect or separate the storage bag from the box.

[0017] 4. The telescopic rod of the telescopic assembly can move within the sleeve, be pulled to a suitable height according to the user's needs, and be locked and fixed by the locking rod and locking groove. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of this embodiment; Figure 2 This is an exploded view of the telescopic rod assembly in this embodiment; Figure 3 This is an exploded view of the telescopic rod assembly from another perspective in this embodiment; Figure 4 This is an exploded view of the fixing component in this embodiment.

[0019] Attached Figure Descriptions: 1. Box Body; 2. Boss; 3. Connector; 4. Storage Bag; 5. Upper Fixing Block; 6. Lower Fixing Block; 7. Upper Groove; 8. Fixing Rod; 9. Lower Groove; 10. Sleeve; 11. Sleeve Rod; 12. Pull Rod; 13. Round Hole; 14. Locking Base Plate; 15. Locking Rod; 16. Locking Groove; 17. Fixing Spring; 18. Fixing Handle; 19. Connecting Plate. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0022] like Figure 1 and Figure 4 As shown, an extended structure for a trolley case includes a case body 1. A boss 2 is provided on the top of the case body 1. A trolley telescopic assembly is movably connected to the boss 2. A connector 3 is provided on the top of the trolley telescopic assembly. A storage bag 4 is provided on the connector 3. The two ends of the storage bag 4 are connected to the two sides of the case body 1 by a fixing assembly. The fixing assembly includes two upper fixing blocks 5 and two lower fixing blocks 6. The upper fixing blocks 5 and the lower fixing blocks 6 are respectively provided on one side of the storage bag 4 and the case body 1. Each upper fixing block 5 has an upper groove 7, and a fixing rod 8 is elastically connected to the upper groove 7. Each lower fixing block 6 has a lower groove 9 for the fixing rod 8 to be inserted.

[0023] In use, the case 1 is first connected to the storage bag 4 by the fixing components on both sides. Specifically, the fixing rod 8 on the upper fixing block 5 is inserted into the lower groove 9 of the lower fixing block 6. Then, the storage bag 4 is connected to the telescopic pull rod assembly by the connector 3 on the storage bag 4. The connector 3 is Velcro or a strap with buckles, etc. After the storage bag 4 is fixed, the telescopic pull rod assembly is pulled to a height suitable for the user. The storage bag 4 is made of knitted fabric or ordinary cloth. When the telescopic pull rod assembly is pulled, the storage bag 4 is also pulled up accordingly through the connector 3. At this time, the storage bag 4 can hold the backpack or computer bag and other items needed by the user when traveling, without having to carry it by hand. Through three-point fixing (top connector + two-side fixing components) and linkage with the pull rod, the stability of the storage bag during the movement of the case is achieved, completely solving the problem of backpacks falling off easily.

[0024] like Figure 2 and Figure 3 As shown, the telescopic rod assembly includes two sleeves 10. The surface of the boss 2 is provided with a movable groove for inserting the sleeves 10. Each sleeve 10 is fitted with a rod 11. A pull rod 12 is fixedly connected to each of the two rods 11. A connector 3 is provided on the pull rod 12. Each sleeve 10 is provided with a plurality of round holes 13. The round holes 13 are evenly distributed. A locking base plate 14 is fixedly connected to each round hole 13. A locking rod 15 is elastically connected to the side of the locking base plate 14 facing the rod 11. A locking groove 16 is provided on the rod 11 for inserting the locking rod 15.

[0025] The movable groove allows the telescopic rod assembly to be folded and stored. In use, the lever 12 pulls the sleeve 11, causing it to move within the sleeve 10. The sleeve 11 can be pulled to a suitable height according to the user's needs. The locking rod 15 and locking groove 16 lock the sleeve 11 at the corresponding height. Specifically, the locking rod 15 has a conical surface, and the locking groove 16 is also a conical groove. Pulling the sleeve 11 causes the conical groove on the sleeve 11 to overcome the elastic force between the locking base plate 14 and the locking rod 15. When the required height is reached, the locking rod 15 abuts against the locking groove 16, fixing the height. When the height of the sleeve 11 needs to be changed, the elastic force between the locking base plate 14 and the locking rod 15 is overcome again.

[0026] like Figure 1 and Figure 4 As shown, a fixing spring 17 is provided in the upper groove 7, and one end of the fixing spring 17 is fixedly connected to the fixing rod 8; a fixing handle 18 is provided on the surface of the fixing rod 8; a connecting piece 19 is provided on the two fixing rods 8 on the same side.

[0027] The spring force generated by the fixed spring 17 ensures that the fixing rod 8 can always be inserted into the lower groove 9 of the lower fixing block 6, maintaining the stability of the connection between the storage bag 4 and the box 1. The fixing handle 18 facilitates the operation of the fixing rod 8, allowing it to be inserted into or pulled out of the lower groove 9 to separate the storage bag 4 and the box 1. The connecting piece 19 makes it more stable for the two fixing rods 8 on the same side to be inserted into the lower groove 9 of the lower fixing block 6.

[0028] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. An extended structure for a trolley case, comprising a case body (1), wherein a boss (2) is provided on the top of the case body (1), and a trolley extension assembly is movably connected to the boss (2), characterized in that: The top of the telescopic rod assembly is provided with a connector (3), and a storage bag (4) is provided on the connector (3). The two ends of the storage bag (4) are connected to the two sides of the box body (1) through a fixing component. The fixing component includes two upper fixing blocks (5) and two lower fixing blocks (6). The upper fixing blocks (5) and the lower fixing blocks (6) are respectively located on one side of the storage bag (4) and the box body (1). Each upper fixing block (5) has an upper groove (7) and a fixing rod (8) is elastically connected to the upper groove (7). Each lower fixing block (6) has a lower groove (9) for the fixing rod (8) to be inserted.

2. The expansion structure of a trolley case according to claim 1, characterized in that: The telescopic rod assembly includes two sleeves (10), and the surface of the boss (2) is provided with a movable groove for inserting the sleeves (10). Each of the two sleeves (10) is fitted with a sleeve rod (11), and a pull rod (12) is fixedly connected to the two sleeve rods (11). The connector (3) is provided on the pull rod (12).

3. The expansion structure of a trolley case according to claim 2, characterized in that: Both sleeves (10) are provided with a number of round holes (13), which are equidistantly distributed. Each round hole (13) is fixedly connected with a locking base plate (14). The locking base plate (14) is elastically connected to a locking rod (15) on the side facing the sleeve rod (11). The sleeve rod (11) is provided with a locking groove (16) for the locking rod (15) to be inserted.

4. The expansion structure of a trolley case according to claim 3, characterized in that: A fixing spring (17) is provided in the upper groove (7), and one end of the fixing spring (17) is fixedly connected to the fixing rod (8).

5. The expansion structure of a trolley case according to claim 4, characterized in that: Each of the fixed rods (8) is provided with a fixed handle (18).

6. The expansion structure of a trolley case according to claim 5, characterized in that: Connecting pieces (19) are provided on the two fixing rods (8) on the same side.

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