Foldable handle structure for trolley case and trolley case with same

Abstract

A foldable handle structure for a trolley case and a trolley case with same. The foldable handle structure comprises first pull rod sections (1), second pull rod sections (2) and third pull rod sections (3) which are connected in sequence, the third pull rod sections (3) being fixed to a case body (7), the second pull rod sections (2) being foldable relative to the third pull rod sections (3), and the first pull rod sections (1) being foldable relative to the second pull rod sections (2). An upper sliding bushing (4) is provided at the connection positions between the first pull rod sections (1) and the second pull rod sections (2). A lower sliding bushing (5) is provided at the connection positions between the second pull rod sections (2) and the third pull rod sections (3). An elastic limiting member is provided inside each second pull rod section (2); the upper sliding bushing (4) and the lower sliding bushing (5) are respectively abutted against both ends of the elastic limiting members; the upper sliding bushing (4) and the lower sliding bushing (5) press the elastic limiting members and are slidable along the rod bodies of the second pull rod sections (2); and sliding the upper sliding bushing (4) and the lower sliding bushing (5) releases or locks the folding of the corresponding first pull rod sections (1) and second pull rod sections (2). The provided foldable pull rods of the trolley case achieve higher robustness and durability than retractable pull rods.

Description

Folding handle structure of a trolley case and trolley case thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present application claims priority to the Chinese patent application No. 2024223150888, filed on September 23, 2024, and entitled “Folding handle structure of a trolley case, trolley case”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of trolley cases, and in particular to a folding handle structure of a trolley case. BACKGROUND

[0004] A trolley case is a convenient, space-saving and environmentally friendly transportation tool. In order to facilitate carrying and transportation, a trolley is usually installed on the packaging box. The design of the trolley should consider the size and weight of the box, as well as the carrying capacity and user experience of the trolley. Common trolley settings include: 1. Fixed trolley, the box is fixed with a trolley, which can directly pull the box to move; 2. Telescopic trolley, the length of the trolley can be adjusted according to actual needs, and the length of the trolley can be adjusted during use to make carrying more convenient.

[0005] It is known that the telescopic trolley is the most commonly used trolley structure for packaging boxes. Although the telescopic trolley has the advantage of flexible length adjustment, it also has some disadvantages during operation: first, since the trolley is pull-out type, the telescopic rod is usually fragile, and if it is subjected to excessive impact, collision and other improper use methods, it may be damaged, thereby affecting normal use; second, the spring inside the trolley may break out after a long time of pulling out, or the parts inside the trolley may be misaligned after the trolley is pulled out, causing the trolley to be unable to be pushed back. These situations will cause the trolley to be unable to be pulled out or pushed back normally, causing trouble to the user. SUMMARY

[0006] In order to solve the problems of easy damage, poor durability, and easy jamming or loosening of the telescopic trolley installed on the existing packaging box, the present application provides a folding handle structure of a trolley case, which uses a folding trolley that is more robust and durable than a telescopic trolley. The trolley can be folded or straightened and fixed to pull the packaging box, and is not prone to failure, making it easy to use.

[0007] In order to solve the above technical problems, the present application provides a folding handle structure of a trolley case, which comprises first, second and third sections of trolley connected in sequence; the third section of trolley is fixed to the box, the second section of trolley is foldable relative to the third section of trolley, and the first section of trolley is foldable relative to the second section of trolley.

[0008] The first section of the pull rod and the second section of the pull rod are provided with an upper sliding sleeve at the connection position, and the second section of the pull rod and the third section of the pull rod are provided with a lower sliding sleeve at the connection position; the second section of the pull rod is provided with an elastic limiting piece, and the upper sliding sleeve and the lower sliding sleeve are respectively abutted at the middle end of the elastic limiting piece;

[0009] The upper sliding sleeve and the lower sliding sleeve extrude the elastic limiting piece and slide along the rod body of the second section of the pull rod; the sliding upper sliding sleeve and the lower sliding sleeve release or lock the folding of the corresponding first section of the pull rod and the second section of the pull rod.

[0010] In a preferred embodiment, the first section of the pull rod and the second section of the pull rod, and the second section of the pull rod and the third section of the pull rod are connected through a hinge.

[0011] In a preferred embodiment, the second section of the pull rod is provided with a spring limiting sleeve, and the elastic limiting piece comprises a first spring and a second spring.

[0012] One end of the first spring and the second spring is respectively abutted at the middle end of the spring limiting sleeve, the other end of the first spring is abutted against the upper sliding sleeve, and the other end of the second spring is abutted against the lower sliding sleeve.

[0013] In a preferred embodiment, the upper sliding sleeve is sleeved on the upper end of the second section of the pull rod, a first bolt is provided on the upper sliding sleeve, and the first bolt is abutted against the first spring.

[0014] The second section of the pull rod is provided with a first sliding groove corresponding to the first bolt, and the first bolt and the first sliding groove are in sliding cooperation.

[0015] In a preferred embodiment, the lower sliding sleeve is sleeved on the lower end of the second section of the pull rod, a second bolt is provided on the lower sliding sleeve, and the second bolt is abutted against the second spring.

[0016] The second section of the pull rod is provided with a second sliding groove corresponding to the second bolt, and the second bolt and the second sliding groove are in sliding cooperation.

[0017] The present application also provides a pull rod box comprising the folding handle structure; the pull rod box comprises a box body and a box cover, a recess is provided on the box cover, and a clamping piece is provided on the box body;

[0018] The first section of the pull rod comprises a handle, after folding, the second section of the pull rod is placed in the recess, and the handle is buckled with the clamping piece.

[0019] In a preferred embodiment, the third section of the pull rod is connected with the bottom surface and the side surface of the box body in an L-shaped structure.

[0020] The clamping member is arranged on the side of the box opposite to the third section of the pull rod.

[0021] In a preferred embodiment, the clamping member comprises a clamping hole and a protrusion, and the handle is provided with a clamping groove, the handle is clamped in the clamping hole, and the protrusion is buckled with the clamping groove.

[0022] In a preferred embodiment, the box is provided with a lock box member for locking or releasing the box cover.

[0023] In a preferred embodiment, the bottom surface of the box is provided with a roller and a boss.

[0024] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0025] 1. The folding pull rod structure is provided, which can realize embedding the pull rod into the box after folding, and the folding space of the pull rod and the box are designed as a whole, so that the space occupied by folding is reduced, and the folding pull rod structure is convenient to store and suitable for long-term non-use or limited space.

[0026] 2. The folding pull rod structure is added to the pull rod box, which is relatively solid and durable compared with the telescopic pull rod, only two sections of the pull rod are folded, the overall structure of the pull rod is consistent, the phenomenon of damage of the telescopic rod part during telescoping in the prior art is solved, and the structure is more solid than the telescopic pull rod.

[0027] 3. The folding handle structure is adopted, which is simple in structure and convenient to use: the folding pull rod only needs to be designed after folding of two sections of the pull rod, only needs to be unfolded and folded during use, does not need to adjust the length, does not exist repeated pulling, the structure is more stable than the telescopic pull rod, and the service life is long.

[0028] 4. The sliding sleeve is arranged between the two sections of the pull rod to lock, the sliding sleeve is locked after unfolding of the pull rod by using the elastic limiting member, the locking of the pull rod is realized by using the sliding of the sliding sleeve, the structure is matched and smooth, the phenomenon of jamming or locking is not easy to occur, and the service life of the sliding sleeve locking is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 is a cooperation diagram of the folding handle structure and the pull rod box in the embodiment;

[0030] Fig. 2 is a schematic diagram of the folding handle structure in the embodiment;

[0031] Fig. 3 is a folding schematic diagram of the first section of the pull rod in the embodiment;

[0032] Fig. 4 is a folding schematic diagram of the second section of the pull rod in the embodiment;

[0033] Fig. 5 is a cooperation diagram of the elastic limiting member and the upper sliding sleeve and the lower sliding sleeve in the embodiment;

[0034] Fig. 6 is a schematic diagram of the position of the first sliding groove and the second sliding groove in the embodiment;

[0035] Fig. 7 is a schematic diagram of the locking position of the upper sliding sleeve and the lower sliding sleeve in the embodiment;

[0036] Fig. 8 is a schematic diagram of the unlocking position of the upper sliding sleeve and the lower sliding sleeve in the embodiment;

[0037] Fig. 9 is a sliding fitting diagram of the elastic limiting member, the upper sliding sleeve and the lower sliding sleeve in the embodiment;

[0038] Fig. 10 is a schematic diagram of the unlocking and folding of the first section of the pull rod and the second section of the pull rod in the embodiment;

[0039] Fig. 11 is an operation diagram of the first section of the pull rod being unlocked in the pull rod case in the embodiment;

[0040] Fig. 12 is an operation diagram of the first section of the pull rod being folded in the pull rod case in the embodiment;

[0041] Fig. 13 is an operation diagram of the second section of the pull rod being unlocked in the pull rod case in the embodiment;

[0042] Fig. 14 is an operation diagram of the second section of the pull rod being folded in the pull rod case in the embodiment;

[0043] Fig. 15 is a schematic diagram of the buckling of the handle and the upper clamping member of the case in the embodiment;

[0044] Fig. 16 is a schematic diagram of the folding of the handle structure of the pull rod case in the embodiment;

[0045] Fig. 17 is a side view of the folded pull rod case in the embodiment.

[0046] Reference signs: 1, first section of pull rod; 11, handle; 12, clamping groove; 2, second section of pull rod; 21, spring limiting sleeve; 22, first spring; 23, second spring; 24, first sliding groove; 25, second sliding groove; 3, third section of pull rod; 4, upper sliding sleeve; 41, first bolt; 5, lower sliding sleeve; 51, second bolt; 6, hinge; 7, case; 71, clamping opening; 72, protrusion; 73, roller; 74, boss; 8, case cover; 81, recess; 9, lock box member. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be wall-mounted connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0050] Referring to FIGS. 1-10, the present embodiment provides a folding handle structure of a trolley case, which is mounted on the case body 7 of the trolley case to provide a power-assisted structure for easy dragging and carrying of the trolley case. The trolley case can be used for storage and carrying of furniture, instruments, equipment, etc.

[0051] As shown in FIG. 1, the mounting structure of the folding handle structure and the trolley case is that the folding handle structure comprises a first section of the trolley 1, a second section of the trolley 2 and a third section of the trolley 3 connected in sequence, and the third section of the trolley 3 is fixed as a fixed rod in an L-shaped structure on the bottom surface and the side surface of the case body 7 of the trolley case. The L-shaped structure is used for mounting and fixing the folding handle structure, which can increase the strength and durability of the folding handle structure and the case body 7. The third section of the trolley 3 forms a support with the bottom surface of the case body 7, thereby enhancing the load strength of the case body 7 and ensuring the safety of the goods during transportation.

[0052] As shown in FIGS. 2-4, the first section of the trolley 1 and the second section of the trolley 2, and the second section of the trolley 2 and the third section of the trolley 3 are rotatably connected by hinges 6. The second section of the trolley 2 is foldable relative to the third section of the trolley 3, and the first section of the trolley 1 is foldable relative to the second section of the trolley 2. An upper sliding sleeve 4 is provided at the connection position of the first section of the trolley 1 and the second section of the trolley 2, and a lower sliding sleeve 5 is provided at the connection position of the second section of the trolley 2 and the third section of the trolley 3. When the first section of the trolley 1 and the second section of the trolley 2, and the second section of the trolley 2 and the third section of the trolley 3 are rotated and unfolded, the upper sliding sleeve 4 and the lower sliding sleeve 5 correspondingly lock and position the first section of the trolley 1 and the second section of the trolley 2, so that the first section of the trolley 1 and the second section of the trolley 2 cannot be rotated, thereby being locked in the unfolded state. At this time, the folding handle structure is in a handle use state, as shown in FIG. 2.

[0053] The restriction structure of the upper sliding sleeve 4 and the lower sliding sleeve 5 to the first section pull rod 1 and the second section pull rod 2 is that an elastic limiting piece is arranged in the second section pull rod 2, the upper sliding sleeve 4 and the lower sliding sleeve 5 are respectively arranged at two ends of the elastic limiting piece, and under the elastic force of the elastic limiting piece, the upper sliding sleeve 4 moves upward to make the hinge 6 connecting the first section pull rod 1 and the second section pull rod 2 sleeved in the upper sliding sleeve 4, thereby forming the restriction to the rotation of the hinge 6, and the lower sliding sleeve 5 moves downward to make the hinge 6 connecting the second section pull rod 2 and the third section pull rod 3 sleeved in the lower sliding sleeve 5, thereby forming the restriction to the rotation of the hinge 6, as shown in Fig. 7.

[0054] In order to facilitate the separate pushing of the upper sliding sleeve 4 and the lower sliding sleeve 5, the elastic limiting piece is divided into a first spring 22 and a second spring 23, and a spring limiting sleeve 21 is arranged in the second section pull rod 2, one end of the first spring 22 and one end of the second spring 23 are respectively arranged at the middle end of the spring limiting sleeve 21, the other end of the first spring 22 is in abutment with the upper sliding sleeve 4, and the other end of the second spring 23 is in abutment with the lower sliding sleeve 5, when the upper sliding sleeve 4 or the lower sliding sleeve 5 is pushed to the middle of the second section pull rod, the first spring 22 or the second spring 23 is pressed to make the upper sliding sleeve 4 or the lower sliding sleeve 5 retract (as shown in Fig. 9), so that the corresponding hinge 6 is exposed (as shown in Fig. 8), and the hinge 6 restores the rotation function after being separated from the restriction of the upper sliding sleeve 4 or the lower sliding sleeve 5 (as shown in Fig. 10), at this time, the folding handle structure can be folded.

[0055] In order to facilitate the more smooth and stable sliding of the upper sliding sleeve 4 and the lower sliding sleeve 5, a sliding guide structure is arranged between the upper sliding sleeve 4, the lower sliding sleeve 5 and the second section pull rod 2, as shown in Figs. 5-6, and the specific structure is as follows:

[0056] The upper sliding sleeve 4 is sleeved at the upper end of the second section pull rod 2, a first bolt 41 is arranged on the upper sliding sleeve 4, the second section pull rod 2 is provided with a first sliding groove 24 corresponding to the first bolt 41, the first bolt 41 and the first sliding groove 24 are in sliding cooperation, and the first spring 22 is arranged on the first bolt 41.

[0057] The lower sliding sleeve 5 is sleeved at the lower end of the second section pull rod 2, a second bolt 51 is arranged on the lower sliding sleeve 5, the second section pull rod 2 is provided with a second sliding groove 25 corresponding to the second bolt 51, the second bolt 51 and the second sliding groove 25 are in sliding cooperation, and the second spring 23 is arranged on the second bolt 51.

[0058] The first bolt 41 and the second bolt 51 slide in the first sliding groove 24 and the second sliding groove 25, one end of the first spring 22 is in abutment with the first bolt 41 of the upper sliding sleeve, and the second spring 23 is arranged on the second bolt 51 of the lower sliding sleeve 5, in the state of not being pushed by external force, the first sliding sleeve and the second sliding sleeve restrict the rotation of the hinge.

[0059] As shown in Fig. 11-16, the folding handle structure is matched with the folding storage of the trolley case, which comprises a case body 7 and a case cover 8, a recess 81 is arranged on the case cover 8, and a clamping piece is arranged on one side of the case body 7, which is matched with the third section trolley 3.

[0060] Since the upper sliding sleeve 4 and the lower sliding sleeve 5 are arranged on the second section trolley 2, when folding, the upper sliding sleeve 4 and the lower sliding sleeve 5 are both retracted on the second section trolley 2, so the recess 81 arranged on the case cover 8 is matched with the structure shape of the retracted upper sliding sleeve 4 and the lower sliding sleeve 5 of the second section trolley 2. The structure of the recess 81 on the case cover 8 is shown in Fig. 13, and the structure of the second section trolley 2 folded and placed on the recess 81 is shown in Fig. 15.

[0061] As shown in Fig. 15, the first section trolley 1 is provided with a handle 11, which is a horizontal bar structure, facilitating hand pulling operation. The handle 11 is detachably buckled with the clamping piece, facilitating the fixation of the folded folding handle structure. Specifically, a clamping groove 12 is arranged on the handle 11 of the first section trolley 1, and the clamping piece comprises a clamping hole 71 and a protrusion 72. When the folding handle structure is folded, the handle 11 is clamped into the clamping hole 71, and the protrusion 72 is buckled with the clamping groove 12, realizing the buckling connection of the handle 11 with the clamping piece, as shown in Fig. 16.

[0062] The folding steps of the folding handle structure and the trolley case are as follows: as shown in Fig. 11, first, the upper sliding sleeve 4 is pressed down, the first spring 22 is used to make the upper sliding sleeve 4 retract on the second section trolley 2, and the hinge 6 connecting the first section trolley 1 with the second section trolley 2 is exposed; as shown in Fig. 12, the first section trolley 1 is folded towards the case cover 8 while maintaining the retracted state of the upper sliding sleeve 4; as shown in Fig. 13, after the first section trolley 1 is folded, the lower sliding sleeve 5 is lifted up, the second spring 23 is used to make the lower sliding sleeve 5 retract on the second section trolley 2, and the hinge 6 connecting the second section trolley 2 with the third section trolley 3 is exposed; as shown in Fig. 14, the second section trolley 2 is folded towards the case cover 8 while maintaining the retracted state of the lower sliding sleeve 5; as shown in Fig. 15, the second section trolley 2 is completely folded and clamped into the recess 81 on the case cover 8, and the handle 11 of the first section trolley 1 is buckled with the clamping piece; as shown in Fig. 16, after the handle 11 is buckled, the folding of the folding handle structure is completed.

[0063] Through the cooperation of the recess 81 and the second section trolley 2, the second section trolley 2 can be embedded on the case cover 8 after folding, reducing the space occupation of the folded second section trolley 2, facilitating storage and storage. The buckling of the handle 11 with the clamping piece locks the folding state of the folding handle structure, which can avoid the separation of the folding handle structure from the case body 7 during use, causing accidents.

[0064] As shown in Fig. 17, the box 7 is provided with a lock box 9 for locking or releasing the box cover 8, which can ensure that the box cover 8 is completely closed and stable, thereby ensuring the safety of the articles in the box 7 and preventing the occurrence of external impact forces. The lock box 9 has a security function, which can prevent theft and unauthorized personnel from accessing the articles inside the box 7. The structure of the lock box 9 can adopt other locking structures in the prior art, such as buckle edge type cover locking, spring type cover locking, block type cover locking, and electronic type cover locking.

[0065] The bottom surface of the box 7 is provided with a roller 73 and a boss 74. The roller 73 is arranged at the rear side of the box 7, and the boss 74 is arranged at the bottom surface of the box 7 near the front side. The roller 73 is arranged to facilitate transportation, and the boss 74 serves as a support for the bottom of the box 7. On the one hand, it is convenient for long-term storage of the box 7, and the roller 73 is not easily damaged due to single-sided support. On the other hand, it balances the box 7 and facilitates the operation of placing and taking articles.

[0066] The above description is only a preferred embodiment of the present application, but the design concept of the present application is not limited thereto. Any skilled person in the art can make non-essential changes to the present application within the scope of the disclosed technology, which is an infringement of the protection scope of the present application. Industrial applicability

[0067] The present application provides a folding handle structure of a trolley case, which comprises a first section of a pull rod, a second section of a pull rod and a third section of a pull rod connected in sequence; the third section of the pull rod is fixed with the box body, the second section of the pull rod is foldable relative to the third section of the pull rod, and the first section of the pull rod is foldable relative to the second section of the pull rod; an upper sliding sleeve is arranged at the connection position of the first section of the pull rod and the second section of the pull rod, and a lower sliding sleeve is arranged at the connection position of the second section of the pull rod and the third section of the pull rod; an elastic limiting piece is arranged in the second section of the pull rod, and the upper sliding sleeve and the lower sliding sleeve are respectively abutted at both ends of the elastic limiting piece; the upper sliding sleeve and the lower sliding sleeve extrude the elastic limiting piece and are slidable along the rod body of the second section of the pull rod; the folding of the corresponding first section of the pull rod and the second section of the pull rod is released or locked by sliding the upper sliding sleeve and the lower sliding sleeve; the trolley case is more durable and has industrial applicability by arranging the folding pull rod relative to the telescopic pull rod.

Claims

1. A folding handle structure of a trolley case, characterized by: The folding handle structure comprises a first section of a pull rod, a second section of a pull rod and a third section of a pull rod connected in sequence; the third section of the pull rod is fixed with the box body, the second section of the pull rod is foldable relative to the third section of the pull rod, and the first section of the pull rod is foldable relative to the second section of the pull rod; An upper sliding sleeve is arranged at the connection position of the first section of the pull rod and the second section of the pull rod, and a lower sliding sleeve is arranged at the connection position of the second section of the pull rod and the third section of the pull rod; an elastic limiting piece is arranged in the second section of the pull rod, and the upper sliding sleeve and the lower sliding sleeve are respectively abutted at two ends of the elastic limiting piece; The upper sliding sleeve and the lower sliding sleeve extrude the elastic limiting piece and slide to the middle of the second section of the pull rod, and the sliding of the upper sliding sleeve and the lower sliding sleeve releases the folding limitation of the first section of the pull rod and the second section of the pull rod.

2. The folding handle structure of a trolley case according to claim 1, characterized in that: The first section of the pull rod and the second section of the pull rod, and the second section of the pull rod and the third section of the pull rod are connected through a hinge.

3. The folding handle structure of a trolley case according to claim 1, characterized in that: A spring limiting sleeve is arranged in the second section of the pull rod, and the elastic limiting piece comprises a first spring and a second spring; One end of the first spring and the second spring is respectively abutted at the middle end of the spring limiting sleeve, the other end of the first spring is abutted with the upper sliding sleeve, and the other end of the second spring is abutted with the lower sliding sleeve.

4. The folding handle structure of a draw-suitcase according to claim 3, wherein: The upper sliding sleeve is sleeved on the upper end of the second section of the pull rod, a first bolt is arranged on the upper sliding sleeve, and the first bolt is abutted with the first spring; The second section of the pull rod is provided with a first sliding groove corresponding to the first bolt, and the first bolt is slidably connected with the first sliding groove.

5. The folding handle structure of a draw-suitcase according to claim 4, wherein: The lower sliding sleeve is sleeved on the lower end of the second section of the pull rod, a second bolt is arranged on the lower sliding sleeve, and the second bolt is abutted with the second spring; The second section of the pull rod is provided with a second sliding groove corresponding to the second bolt, and the second bolt is slidably connected with the second sliding groove.

6. A trolley case characterised by: The folding handle structure according to any one of claims 1-5 is arranged on the pull rod box; the pull rod box comprises a box body and a box cover, a recess is arranged on the box cover, and a clamping piece is arranged on the box body; The first section of the pull rod comprises a handle, and the second section of the pull rod is arranged in the recess after folding, and the handle is buckled with the clamping piece.

7. The folding handle structure of a draw-suitcase according to claim 6, wherein: The third section of the pull rod is connected with the bottom surface and the side surface of the box body in an L-shaped structure. The clamping piece is arranged on the side surface of the box body opposite to the third section of the pull rod.

8. The folding handle structure of a draw-suitcase according to claim 6, wherein: The clamping piece comprises a clamping hole and a protrusion, a clamping groove is arranged on the handle, the handle is clamped into the clamping hole, and the protrusion is buckled with the clamping groove.

9. The folding handle structure of a draw-suitcase according to claim 6, wherein: A lock box piece is arranged on the box body for locking or releasing the box cover.

10. The folding handle structure of a draw-suitcase according to claim 6, wherein: The bottom surface of the box body is provided with a roller and a boss.

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