Easily assembled and disassembled structure of luggage case pull rod

Abstract

An easy-to-disassemble and assemble structure of a luggage case draw bar comprises a case body and a draw bar mechanism, the draw bar mechanism comprises an outer tube, the outer tube comprises a tube opening part and a tube bottom, the case body comprises an outer surface and an inner surface, and the easy-to-disassemble and assemble structure is characterized in that lock fasteners are arranged at the tube opening part and the tube bottom and comprise upper table parts, middle shaft parts and lower table parts; the upper table part and the lower table part are larger than the middle shaft part in area; by means of the improved lock catch piece and the lock groove structure, the quick and reliable assembly requirement is met, and meanwhile the problem that due to the stroke space needed by a buckle, the structure of the assembly position is prone to damage due to the fact that a neutral position is left is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage cases, in particular to an easy-to-disassemble and assemble structure of a luggage case pull rod. Background Art

[0002] Bags are a kind of storage items that people often use in their daily lives, suitable for transportation, travel and various applicable places. Bags include a shell, bags wheels, handles, pipes, bottom brackets, pull rods, etc. The function of the pull rod is to enable users to better pull and check the bags. The pull rod mainly includes a handle arranged at the upper end, a control button arranged on the handle, and a pipe connected to the handle. The pipe includes an inner tube and an outer tube, and an upper bracket and a lower bracket arranged at the upper and lower parts of the pipe. Among them, the control button mainly controls the lock bead in the pipe to lock the movement of the inner tube between the outer tube. The problem of the prior art is that the assembly between the pull rod and the bag body is to punch holes at the corresponding installation positions of the outer tube of the pull rod and the box body, and then screw in the screws from the inside of the box body to connect and fix. This structure leads to the need to add a process of tightening screws in the production link. At the same time, when the pull rod is damaged and needs to be replaced, corresponding tools are required for disassembly. Both the assembly and disassembly links are relatively cumbersome. If an automatic screwing device is set during assembly, additional production costs are added.

[0003] Therefore, a buckle structure is used to connect the pull rod and the box body in the prior art.

[0004] However, since the box body needs to have corresponding installation parts for the pull rod, corresponding holes and grooves are set, resulting in weakened local structural strength at the connection. In addition, the conventional snap-on structure utilizes the elasticity of the hook to deform into the hole and groove of the box body, and then restores the deformation to form a snap fit.

[0005] In order to leave travel space for the deformation of the hook, this structure requires a certain space between the hook, hole and slot, but this certain space cannot be supported, and the box body cannot be supported by the hole and slot because they are hollowed out. When the box body is loaded with heavy objects and encounters bumps, the straight part of the box body can share the impact stress. However, this certain space is extremely easy to be damaged because it has no support.

[0006] This is the problem faced by the current simple pull rod buckle assembly structure. Therefore, it is necessary to design an easy-to-disassemble structure between the suitcase and the pull rod to meet the needs of fast and reliable assembly, while correspondingly improving the problem caused by the travel space required for the above buckle, and avoiding the problem of local fragility caused by the setting of holes and grooves at the assembly of the box body without reliable support. Utility Model Content

[0007] In order to solve the deficiencies of the above-mentioned technologies, the utility model provides an easy-to-disassemble and assemble structure of a luggage case tie rod, which can meet the landscape requirements of tourists while ensuring the flow capacity of the river. The technical solution of the utility model is as follows: an easy-to-disassemble and assemble structure of a luggage case tie rod, comprising a box body and a tie rod mechanism, the tie rod mechanism comprising an outer tube, the outer tube comprising a tube mouth and a tube bottom, the box body comprising an outer surface and an inner surface, the tube mouth and the tube bottom are provided with a locking member,

[0008] The locking member comprises an upper platform, a middle axis, and a lower platform, wherein the upper platform and the lower platform are larger in area than the middle axis;

[0009] The upper platform and the lower platform are respectively provided with a first hook portion and a second hook portion extending toward one side of the inner surface of the box body and elastically bent toward one side of the central axis. The upper platform and the lower platform are provided with notches on both sides corresponding to the first and second hook portions. The outer surface of the box body is provided with an embedding groove adapted to the contour of the pull rod mechanism, and the embedding groove corresponds to the position of the locking member and is provided with a locking groove, and the locking member is inserted into the locking groove.

[0010] The four side surfaces of the lock groove are respectively a first limit end surface and a second limit end surface opposite to the length direction of the outer tube, and two first side end surfaces opposite to the width direction of the outer tube. The bottom surface of the lock groove is provided with a first through lock opening in the direction from the outer surface to the inner surface;

[0011] The first hook portion and the second hook portion are elastically bent to pass through the first through-locking opening and engage with the inner surface of the bag;

[0012] The first and second limiting end faces are respectively engaged with the end faces of the upper stage and the lower stage;

[0013] A pair of T-shaped ribs are symmetrically arranged on the two first side end faces, the T-shaped ribs include a horizontal end portion parallel to the length direction of the outer tube, and a vertical end portion parallel to the width direction, the vertical end portion is connected to the first side end face;

[0014] The two side surfaces of the central axis are slidably fitted with the lateral ends of a pair of T-shaped ribs;

[0015] The upper platform and the lower platform are both provided with a limiting flange extending between the horizontal end and the first side end surface and slidingly fitting with the vertical end.

[0016] By adopting the above technical solution, through the improved design of the locking piece and the locking groove structure, when the outer tube is embedded in the embedding groove and assembled flatly with the outer surface of the luggage, the locking piece on the outer tube is inserted into the locking groove. Due to the structural design of the upper platform, the middle axis, and the lower platform, the first hook part and the second hook part are elastically bent toward one side of the middle axis part, so that after entering the first through lock port, they are hooked and engaged with the inner surface of the box.

[0017] The deformation gaps of the first and second hook parts are supported by the mutual covering and biting of the central axis, the limiting flange and the T-shaped ribs. Even after the first and second hook parts enter one side of the inner surface of the box body, there will be no gap at the lock groove. Instead, the T-shaped ribs cooperate to achieve support for the gap.

[0018] In this way, after the assembly is completed, the weight and bumps of the suitcase will not cause the lock slot, which is the gap in the suitcase packaging, to be easily damaged due to the lack of support in the hook structure.

[0019] The utility model is further configured as follows: the locking member is provided with a first plug shaft which is plugged into the inner hole of the outer tube, the first plug shaft is provided with a deformation notch along the axial direction, a plug block is provided on the radial outer peripheral surface of the first plug shaft, and the outer tube is provided with a through hole which is engaged with the plug hole at the position corresponding to the plug block.

[0020] The drawbar is placed outside to reduce the space inside the box. The T-shaped slot fits tightly with the drawbar pipe fittings to reduce shaking.

[0021] The back sides of the pull rod pipe mouth accessories are hooked to prevent the hook from being dragged to one side, thereby increasing the firmness. The above technical solution is adopted to provide a first plug shaft, which facilitates the disassembly and assembly of the locking part and the outer tube so as to replace the accessories.

[0022] The utility model is further configured as follows: a first supporting rib is provided between the first hook portion, the second hook portion and the central axis portion; the locking member is provided with a draft taper, which narrows toward one side of the inner surface of the box body.

[0023] By adopting the above technical solution, the first supporting rib further strengthens the support of the bending deformation gap between the first and second hook parts.

[0024] The utility model is further configured as follows: a lower fastener is provided at the bottom of the tube to replace the locking fastener, the embedding groove corresponds to the position of the lower fastener, and a lower locking groove is provided, the four side surfaces in the lower locking groove are respectively a third limiting end surface and a fourth limiting end surface opposite to the length direction of the outer tube, and two second side end surfaces opposite to the width direction of the outer tube, and a second through-locking opening is provided on the bottom surface of the lower locking groove in a direction from the outer surface through the inner surface;

[0025] The fourth limiting end surface is provided with a slope groove;

[0026] The lower buckle comprises an inserting platform portion inserted between the third and fourth limiting end faces, and a third hook portion is provided on a side of the inserting platform portion close to the inner surface of the box body;

[0027] The inserting platform is provided with a folding edge portion for closing the notch of the lower locking groove, and a second supporting rib is provided between the inserting platform and the folding edge portion, which is adapted to the angle of the slope groove and slides against it;

[0028] The third hook portion is elastically bent toward one side of the second supporting rib.

[0029] With the above technical solution, the outer tube assembly needs to be fixed at both ends of the tube mouth and the bottom of the tube to ensure stability. The outer tube can be disassembled by unlocking the lock piece on one side and then using the posture of tilting the outer tube unilaterally out of the embedding groove to naturally remove the lock piece on the other side.

[0030] Therefore, a lower fastener that replaces the locking member can be set on one side of the pipe mouth or the bottom of the pipe. The lower fastener does not need to be set with two hook parts like the locking member, but only needs to correspond to a third hook part. When the outer tube is assembled in parallel in the embedding groove, the three hook parts can remain engaged, and it is convenient to unlock only one locking member.

[0031] While simplifying the disassembly operation steps, replacing a locking component with a more complex structure can reduce the cost of parts.

[0032] At the same time, the slope groove facilitates the insertion of the lower fastener, and the cooperation between the second supporting ribs provided by the lower fastener and the slope groove also avoids leaving gaps at the slope groove and provides support.

[0033] The utility model is further configured as follows: the second hook portion is provided with a protrusion extending toward one side of the lower locking member along the length direction of the outer tube, and the second limiting end face is provided with a through opening adapted to the protrusion, and the through opening extends from the outer surface of the box body to the inner surface of the box body.

[0034] By adopting the above technical solution, the second hook portion is bent and deformed by pressing the protrusion, so as to facilitate the disassembly operation.

[0035] The utility model is further configured as follows: the lower locking member is plugged into the inner hole of the outer tube for a second plug shaft, the outer peripheral surface of the second plug shaft is provided with mounting screw holes, and the outer tube and the second plug shaft are screwed for detachable fixation.

[0036] The utility model is further configured as follows: the inner surface of the box body is partially thickened at the lock groove and the lower lock groove.

[0037] By adopting the above technical solution, the local thickness of the bottom of the buckle connection penetrating the lock hole is relatively increased, thereby improving the material strength of the connection.

[0038] The beneficial effects of the utility model are as follows: the application meets the requirements of fast and reliable assembly through improved designs of the locking parts and the locking groove structure, while overcoming the problem of easy damage caused by the assembly structure left in the gap due to the travel space required by the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The structure of the embodiment of the utility model Figure 1 ;

[0040] Figure 2 The structure of the embodiment of the utility model Figure 2 ;

[0041] Figure 3 The structure of the embodiment of the utility model Figure 3 ;

[0042] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0043] Figure 5 for Figure 3 Enlarged view of point B in the middle;

[0044] Figure 6 for Figure 1 Enlarged view of point C in the middle;

[0045] Figure 7 for Figure 3 Enlarged view of point D in the middle;

[0046] Figure 8 for Figure 2 Enlarged view of point E in the middle;

[0047] Fig. 9 for Figure 2 Enlarged view of point F in the middle.

[0048] Among them, 1-box, 11-outer surface, 12-inner surface, 13-embedded groove, 14-locking groove, 141-first limiting end face, 142-second limiting end face, 142-through opening, 143-first side end face, 144-first through lock mouth, 145-T-shaped rib, 1451-horizontal end, 1452-vertical end, 15-lower lock groove, 151-third limiting end face, 152-fourth limiting end face, 153-second side end face, 154-first Two through-locking ports, 155-slope groove, 2-pull rod mechanism, 21-outer tube, 211-through hole, 3-locking member, 31-upper platform, 311-first hook portion, 32-middle axis portion, 33-lower platform, 331-second hook portion, 3311-bump, 34-recess, 35-limiting flange, 36-plug-in hole, 37-first supporting rib, 4-lower fastener, 41-plug-in platform, 42-third hook portion, 43-folded edge portion, 44-second supporting rib.

[0049] In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. In addition, the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. DETAILED DESCRIPTION

[0050] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be further described in detail in detail and in detail in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0051] like Figure 1-9 As shown, an easy-to-disassemble and assemble structure of a luggage case tie rod comprises a case body 1 and a tie rod mechanism 2, wherein the tie rod mechanism 2 comprises an outer tube 21, wherein the outer tube 21 comprises a tube mouth and a tube bottom, wherein the case body 1 comprises an outer surface 11 and an inner surface 12, wherein the tube mouth and the tube bottom are provided with a locking member 3, wherein the locking member 3 comprises an upper platform 31, a middle axis 32, and a lower platform 33, wherein the upper platform 31 and the lower platform 33 have larger areas than the middle axis 32;

[0052] The upper platform 31 and the lower platform 33 are respectively provided with a first hook portion 311 and a second hook portion 331 extending toward the inner surface 12 of the box body 1 and elastically bent toward the side of the central axis portion 32. The upper platform 31 and the lower platform 33 are respectively provided with notches 34 on both sides corresponding to the first and second hook portions 331.

[0053] The outer surface 11 of the box body 1 is provided with an embedding groove 13 adapted to the contour of the pull rod mechanism 2, the embedding groove 13 corresponds to the position of the lock member 3, and is provided with a lock groove 14, the lock member 3 is inserted in the lock groove 14;

[0054] The four side surfaces of the locking groove 14 are respectively a first limiting end surface 141 and a second limiting end surface 142 opposite to the length direction of the outer tube 21, and two first side end surfaces 143 opposite to the width direction of the outer tube 21. The bottom surface of the locking groove 14 is provided with a first through-locking opening 144 in the direction from the outer surface 11 through the inner surface 12;

[0055] The first hook portion 311 and the second hook portion 331 are elastically bent to pass through the first through-locking opening 144 and engage with the inner surface 12 of the bag;

[0056] The first and second limiting end faces 142 are respectively engaged with the end faces of the upper stage 31 and the lower stage 33;

[0057] A pair of T-shaped ribs 145 are symmetrically arranged on the two first side end surfaces 143. The T-shaped ribs 145 include a horizontal end portion 1451 parallel to the length direction of the outer tube 21 and a vertical end portion 1452 parallel to the width direction. The vertical end portion 1452 is connected to the first side end surface 143.

[0058] The two side surfaces of the middle axis portion 32 are slidably fitted with the lateral ends 1451 of a pair of T-shaped ribs 145;

[0059] The upper platform 31 and the lower platform 33 are both provided with a limiting flange 35 extending between the horizontal end portion 1451 and the first side end surface 143 and slidingly fitted with the vertical end portion 1452 .

[0060] Through the improved design of the locking member 3 and the locking groove 14 structure, when the outer tube 21 is embedded in the embedding groove 13 and assembled flatly with the outer surface 11 of the bag, the locking member 3 on the outer tube 21 is inserted into the locking groove 14. Due to the structural design of the upper platform 31, the middle axis 32, and the lower platform 33, the first hook portion 311 and the second hook portion 331 are elastically bent toward one side of the middle axis 32 to enter the first through-locking port 144 and then hook and engage with the inner surface 12 of the box body 1.

[0061] The deformation gaps of the first and second hook portions 331 are supported by the mutual covering and engagement of the middle axis portion 32, the limiting flange 35, and the T-shaped rib 145. Even after the first and second hook portions 331 enter one side of the inner surface 12 of the box body 1, there will be no gap at the lock groove 14. Instead, the T-shaped rib 145 cooperates to support the gap.

[0062] In this way, after the assembly is completed, the weight-bearing bumps of the suitcase will not cause the lock slot 14, which is the gap where the suitcase is assembled, to be easily damaged due to the lack of support of the hook structure.

[0063] The locking member 3 is provided with a first plug shaft which is plugged into the inner hole of the outer tube 21. The first plug shaft is provided with a deformation notch along the axial direction. The radial outer peripheral surface of the first plug shaft is provided with a plug block 36. The outer tube 21 is provided with a through hole 211 which is engaged with the plug hole at the position corresponding to the plug block 36.

[0064] The first insertion shaft is provided to facilitate the disassembly and assembly of the locking member 3 and the outer tube 21 so as to replace accessories.

[0065] First supporting ribs 37 are disposed between the first hook portion 311 , the second hook portion 331 and the central axis portion 32 . The locking member 3 is provided with a draft taper, which narrows toward the inner surface 12 of the box body 1 .

[0066] The first supporting rib 37 further strengthens the support of the bending deformation gap between the first and second hook portions 331 .

[0067] The bottom of the tube is provided with a lower fastener 4 replacing the locking fastener 3, and the embedding groove 13 corresponds to the position of the lower fastener 4, and is provided with a lower locking groove 15, and the four side surfaces of the lower locking groove 15 are respectively a third limiting end surface 151 and a fourth limiting end surface 152 opposite to the length direction of the outer tube 21, and two second side end surfaces 153 opposite to the width direction of the outer tube 21, and the bottom surface of the lower locking groove 15 is provided with a second through-locking opening 154 in the direction from the outer surface 11 through the inner surface 12;

[0068] The fourth limiting end surface 152 is provided with a slope groove 155;

[0069] The lower fastener 4 includes an inserting platform 41 inserted between the third and fourth limiting end surfaces 152, and a third hook portion 42 is provided on one side of the inserting platform 41 close to the inner surface 12 of the box body 1;

[0070] The inserting portion 41 is provided with a folding portion 43 for closing the notch of the lower locking groove 15, and a second supporting rib 44 is provided between the inserting portion 41 and the folding portion 43, which is adapted to the angle of the slope groove 155 and slides against it;

[0071] The third hook portion 42 is elastically bent toward the second supporting rib 44 .

[0072] The outer tube 21 needs to be assembled by fixing the tube mouth and the bottom of the tube at both ends to ensure stability. The outer tube 21 can be disassembled by unlocking the lock piece 3 on one side and then naturally removing the lock piece 3 on the other side by tilting the outer tube 21 out of the embedding groove 13.

[0073] Therefore, a lower fastener 4 replacing the locking member 3 can be provided on one side of the pipe mouth or the bottom of the pipe. The lower fastener 4 does not need to be provided with two hook portions like the locking member 3, but only needs to correspond to a third hook portion 42. When the outer tube 21 is assembled in parallel in the embedding groove 13, the three hook portions can remain engaged, and it is convenient to unlock only one locking member 3.

[0074] While simplifying the disassembly operation steps, replacing a locking member 3 with a more complex structure can reduce the cost of parts.

[0075] At the same time, the slope groove 155 facilitates the insertion of the lower fastener 4, and the cooperation between the second supporting rib 44 provided on the lower fastener 4 and the slope groove 155 also avoids leaving a gap at the slope groove 155 and provides support.

[0076] The second hook portion 331 is provided with a protrusion 3311 extending toward the lower locking member along the length direction of the outer tube 21 , and the second limiting end surface 142 is provided with a through opening 1421 adapted to the protrusion 3311 , and the through opening 1421 extends from the outer surface 11 of the box body 1 to the inner surface 12 of the box body 1 .

[0077] The second hook portion 331 is bent and deformed by pressing the protrusion 3311 , so as to facilitate the disassembly operation.

[0078] The lower locking piece is plugged into the inner hole of the outer tube 21 to form a second plug shaft, and the outer peripheral surface of the second plug shaft is provided with mounting screw holes. The outer tube 21 is connected to the second plug shaft screw 5 for detachable fixation.

[0079] The inner surface 12 of the box body 1 is partially thickened at the locking groove 14 and the lower locking groove 15 .

[0080] The local thickness of the bottom of the buckle connection penetrating the lock opening is relatively increased to improve the material strength of the connection.

[0081] The present application improves the design of the locking member 3 and the locking groove 14 structure, which not only meets the requirements of fast and reliable assembly, but also overcomes the problem of the assembly structure being vulnerable to damage due to the gaps left by the travel space required for the buckle.

[0082] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.

Claims

1. An easily disassembled structure of a luggage case tie rod, comprising a case body and a tie rod mechanism, wherein the tie rod mechanism comprises an outer tube, wherein the outer tube comprises a tube mouth and a tube bottom, and the case body comprises an outer surface and an inner surface, wherein: The pipe mouth and the pipe bottom are provided with locking parts. The locking member comprises an upper platform, a middle axis, and a lower platform, wherein the upper platform and the lower platform are larger in area than the middle axis; the upper platform and the lower platform are respectively provided with a first hook portion and a second hook portion extending toward one side of the inner surface of the box body and elastically bent toward one side of the middle axis, and the upper platform and the lower platform are both provided with notches at two sides corresponding to the first and second hook portions; The outer surface of the box body is provided with an embedding groove adapted to the profile of the pull rod mechanism, the embedding groove corresponds to the position of the locking member, and is provided with a locking groove, and the locking member is inserted in the locking groove; The four side surfaces of the lock groove are respectively a first limit end surface and a second limit end surface opposite to the length direction of the outer tube, and two first side end surfaces opposite to the width direction of the outer tube. The bottom surface of the lock groove is provided with a first through lock opening in the direction from the outer surface to the inner surface; The first hook portion and the second hook portion are elastically bent to pass through the first through-locking opening and engage with the inner surface of the bag; The first and second limiting end faces are respectively engaged with the end faces of the upper stage and the lower stage; A pair of T-shaped ribs are symmetrically arranged on the two first side end faces, the T-shaped ribs include a horizontal end portion parallel to the length direction of the outer tube, and a vertical end portion parallel to the width direction, the vertical end portion is connected to the first side end face; The two side surfaces of the central axis are slidably fitted with the lateral ends of a pair of T-shaped ribs; The upper platform and the lower platform are both provided with a limiting flange extending between the horizontal end and the first side end surface and slidingly fitting with the vertical end.

2. The easily disassembled structure of a luggage case pull rod according to claim 1, characterized in that: The locking member is provided with a first plug shaft which is plugged into the inner hole of the outer tube. The first plug shaft is provided with a deformation notch along the axial direction. The radial outer peripheral surface of the first plug shaft is provided with a plug block. The outer tube is provided with a through hole which is engaged with the plug hole at the position corresponding to the plug block.

3. The easily disassembled structure of a luggage case pull rod according to claim 2, characterized in that: A first supporting rib is arranged between the first hook portion, the second hook portion and the central axis portion; and the locking member is provided with a draft taper, which narrows toward one side of the inner surface of the box body.

4. The easily disassembled structure of a luggage case pull rod according to any one of claims 1 to 3, characterized in that: The bottom of the tube is provided with a lower fastener replacing the locking fastener, the embedding groove corresponds to the position of the lower fastener, and is provided with a lower locking groove, the four side surfaces in the lower locking groove are respectively a third limiting end surface and a fourth limiting end surface opposite to the length direction of the outer tube, and two second side end surfaces opposite to the width direction of the outer tube, and the bottom surface of the lower locking groove is provided with a second through-locking opening in the direction from the outer surface to the inner surface; The fourth limiting end surface is provided with a slope groove; The lower buckle comprises an inserting platform portion inserted between the third and fourth limiting end faces, and a third hook portion is provided on a side of the inserting platform portion close to the inner surface of the box body; The inserting platform is provided with a folding edge portion for closing the notch of the lower locking groove, and a second supporting rib is provided between the inserting platform and the folding edge portion, which is adapted to the angle of the slope groove and slides against it; The third hook portion is elastically bent toward one side of the second supporting rib.

5. The easily disassembled structure of a luggage case pull rod according to claim 4, characterized in that: The second hook portion is provided with a protrusion extending toward one side of the lower locking member along the length direction of the outer tube, and the second limiting end face is provided with a through opening adapted to the protrusion, and the through opening extends from the outer surface of the box to the inner surface of the box.

6. The easily disassembled structure of a luggage case pull rod according to claim 5, characterized in that: The lower locking piece is plugged into the inner hole of the outer tube for the second plug-in shaft, and the outer peripheral surface of the second plug-in shaft is provided with mounting screw holes. The outer tube and the second plug-in shaft are connected with screws for detachable fixation.

7. The easily disassembled structure of a luggage case pull rod according to claim 6, characterized in that: The inner surface of the box body is partially thickened at the locking groove and the lower locking groove.

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