Telescopic pull rod for travel suitcase

Abstract

The utility model belongs to the technical field of telescopic pull rods, and particularly relates to a telescopic pull rod for a suitcase, which comprises a pull rod main body consisting of a base, a mounting plate, a storage rod, a first telescopic rod, a second telescopic rod and a handle, the fastening module is composed of a fastening frame, a fastening rod, a fastening sliding block, a fastening spring, a rotating shaft and an eccentric shaft sleeve, a moving groove is formed in the fastening frame, the fastening rod is arranged in the moving groove, the fastening sliding block is fixedly connected to the fastening rod, and the side, close to the storage rod, of the fastening sliding block is connected with the fastening frame through the fastening spring. A rotating groove is formed in the upper end of the fastening frame, the rotating shaft is arranged in the rotating groove, and the eccentric shaft sleeve is arranged on the rotating shaft in a sleeving mode. Wherein one side of the rotating groove is provided with a through groove, and the rotating shaft is fixedly connected with a handle which penetrates through the through groove and extends out. And the effect that the telescopic pull rod extends by a corresponding length and is fixed according to the actual situation of a user can be achieved through the fastening module.

Description

Technical Field

[0001] This application belongs to the technical field of telescopic pull rods, and particularly relates to a telescopic pull rod for a suitcase. Background Art

[0002] With the continuous improvement of people's living technology, people often need to travel on business or for leisure. When people need to carry a large number of items when going out, suitcases become particularly important. In order to facilitate the carrying of suitcases, most suitcases on the market now come with telescopic pull rod devices.

[0003] For example, the Chinese patent with the publication number CN221533079U discloses a new type of suitcase pull rod, which includes a base, a telescopic rod unit, a holding handle, and a locking mechanism. Each of the telescopic rod units includes a first telescopic rod, a second telescopic rod, and a limiting hole. The holding handle includes a handle body, an extension section, and a limiting protrusion. The locking mechanism includes a locking pin device disposed in the second telescopic rod and a locking drive device disposed on the holding handle for driving the locking pin device. The locking pin device corresponds to the limiting hole. The length of the handle body is equal to the distance between the two telescopic rod units, and the diameter of the limiting protrusion is greater than the diameter of the extension section, so that the user can hold it stably. This new type of suitcase pull rod has a simple structure, is convenient for holding with both hands, and has a stable grip, meeting the various holding methods of users.

[0004] Although this new type of suitcase pull rod can achieve the effect of meeting various holding methods of users by using the locking pin device and the limiting hole, the new type of suitcase pull rod in this solution cannot extend to a suitable length according to the various actual situations of users, which affects the user's carrying of the suitcase. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a telescopic pull rod for a suitcase to achieve the effect of extending and fixing the telescopic pull rod to a corresponding length according to the actual situation of the user for the existing technical problems.

[0006] In view of this, the present utility model provides a telescopic pull rod for a suitcase, including:

[0007] A pull rod main body, which is composed of a base, a mounting plate, a storage rod, a first telescopic rod, a second telescopic rod, and a handle. A storage cavity is provided in the storage rod and runs through up and down. The base is placed at the bottom of the storage rod, the mounting plate is placed at the top of the storage rod. A telescopic hole is provided on the mounting plate. The second telescopic rod passes through the telescopic hole and is slidably connected to the storage rod in the storage cavity. A telescopic groove is provided inside the second telescopic rod. The first telescopic rod is placed in the telescopic groove and is slidably connected to the second telescopic rod. The top end of the first telescopic rod is connected to the handle;

[0008] A fastening module, the fastening module is placed on the mounting plate. The fastening module is composed of a fastening frame, a fastening rod, a fastening slider, a fastening spring, a rotating shaft, and an eccentric bushing. A moving groove is provided at a position corresponding to the receiving rod on the fastening frame. The fastening rod is placed in the moving groove and is slidably connected to the fastening frame. An opening is provided on one side of the moving groove close to the receiving rod. A fastening slider is fixedly connected to the fastening rod. One end of the fastening slider close to the receiving rod is welded to the fastening spring. The other end of the fastening spring is connected to the fastening frame. A rotating groove is provided at the upper end of the fastening frame. The rotating shaft is placed in the rotating groove and is rotatably connected to the fastening frame. The eccentric bushing is sleeved on the rotating shaft, and the side wall of the eccentric bushing is closely attached to the fastening slider;

[0009] Among them, two receiving rods are provided on the main body of the pull rod. A through groove is provided on one side of the rotating groove away from the receiving rod. A handle is fixedly connected to the rotating shaft. The handle passes through the through groove and extends out. End caps are respectively provided on the left and right sides of the fastening frame. The end caps are detachably connected to the fastening frame. One end of the fastening rod close to the receiving rod is provided with a rounded corner. Grooves matching the rounded corner of the fastening rod are provided on the first receiving rod and the second receiving rod.

[0010] In this technical solution, the telescopic pull rod for a suitcase is composed of a pull rod main body and a fastening module. The pull rod main body is composed of a base, a mounting plate, a receiving rod, a first telescopic rod, a second telescopic rod, and a handle. A receiving cavity penetrating up and down is provided inside the receiving rod. The base is placed at the bottom of the receiving rod. The mounting plate is placed at the top of the receiving rod. A telescopic hole matching the receiving cavity is provided on the mounting plate. The cross-sectional area of the second telescopic rod is smaller than the cross-sectional area of the receiving cavity. The second telescopic rod passes through the telescopic hole and is placed in the receiving cavity and is slidably connected to the receiving rod. A telescopic groove is provided inside the second telescopic rod. The cross-sectional area of the first telescopic rod is smaller than the cross-sectional area of the telescopic groove. The first telescopic rod is placed in the telescopic groove and is slidably connected to the second telescopic rod. The top end of the first telescopic rod is connected to the handle. Two receiving rods are provided on the pull rod main body, and the receiving rods are arranged in an array on the base and the mounting plate.

[0011] The fastening module is placed on the mounting plate. The fastening module is composed of a fastening frame, a fastening rod, a fastening slider, a fastening spring, a rotating shaft, and an eccentric bushing. A moving groove is provided at a position corresponding to the receiving rod on the fastening frame. An opening is provided on one side of the moving groove close to the receiving rod. The fastening rod is placed in the moving groove and is slidably connected to the fastening frame. The fastening rod extends through the opening and contacts the side walls of the first telescopic rod and the second telescopic rod. A fastening slider is fixedly connected to the fastening rod. One end of the fastening slider close to the receiving rod is welded to the fastening spring. The other end of the fastening spring is connected to the fastening frame. A rotating groove is provided at the upper end of the fastening frame. The rotating shaft is placed in the rotating groove and is rotatably connected to the fastening frame. A through groove is provided on one side of the rotating groove away from the receiving rod. A handle is fixedly connected to the rotating shaft. The handle passes through the through groove and extends out. The eccentric bushing is sleeved on the rotating shaft. The side wall of the eccentric bushing is closely attached to the fastening slider. The fastening spring always gives the fastening slider and the fastening rod a thrust towards the eccentric bushing. Through the thrust, the side wall of the eccentric bushing can be closely attached to the fastening slider. End caps are provided on both the left and right side walls of the fastening frame. The end caps can be used to assemble the components inside the fastening module.

[0012] A rounded corner is provided at one end of the fastening rod close to the receiving rod. The rounded corner can make the fastening rod slide more smoothly when the first telescopic rod and the second telescopic rod are stretched, reducing the jamming caused by friction and improving the practicability of this technical solution. Grooves matching the rounded corners of the fastening rod are provided on the first telescopic rod and the second telescopic rod. The grooves can increase the contact area between the fastening rod and the first telescopic rod and the second telescopic rod, making the fastening effect more stable when fastening this technical solution and improving the practicability of this technical solution.

[0013] In this technical solution, the user can pull out the first telescopic rod from the second telescopic rod by stretching the handle. When the extended length of the first telescopic rod reaches the limit, the first telescopic rod drives the second telescopic rod to extend from the receiving rod. After the telescopic rod of the required length is extended in this technical solution, the rotating shaft is rotated by the handle, and the eccentric bushing is driven by the rotating shaft. Since the connection center of the eccentric bushing is not the center of the bushing, and the side wall of the eccentric bushing is always in contact with the fastening slider, the eccentric bushing makes the fastening slider drive the fastening rod to move towards the telescopic rod, and the friction between the fastening rod and the telescopic rod is increased by extrusion to achieve the fastening effect.

[0014] Further, the fastening slider is sleeved on the fastening rod and is slidably connected to the fastening rod. A threaded hole is provided on the side wall of the fastening slider. A positioning groove is provided at a position corresponding to the threaded hole on the end cover of the side wall of the fastening frame. A matching fastening bolt is provided in the threaded hole. One end of the fastening bolt away from the threaded hole passes through the positioning groove and extends out. A limiting ring is provided on the fastening bolt. The limiting ring is placed between the threaded hole and the positioning groove. One side of the fastening bolt extending out of the positioning groove is provided with a bolt head. The bolt head is detachably connected to the fastening bolt. Knurling is provided on the bolt head.

[0015] In this technical solution, the fastening slider is sleeved on the fastening rod and is slidably connected to the fastening rod. A threaded hole is provided on the side wall of the fastening slider. A positioning groove is provided at a position corresponding to the threaded hole on the end cover of the side wall of the fastening frame. A matching fastening bolt is provided in the threaded hole. The fastening bolt is threadedly connected to the fastening slider through the threaded hole. One end of the fastening bolt away from the threaded hole passes through the positioning groove and extends out. A limiting ring is provided on the fastening bolt. The outer circle of the cross-section of the limiting ring is larger than the cross-sectional width of the positioning groove. The limiting ring is placed between the threaded hole and the positioning groove. One side of the fastening bolt extending out of the positioning groove is provided with a bolt head. The limiting ring and the bolt head can prevent the fastening bolt from detaching from the threaded hole and falling off the fastening frame after disconnection. Knurling is provided on the bolt head. Through the knurling, the user can better connect the fastening bolt with the threaded hole. The bolt head and the fastening bolt are detachably connected. By disassembling the end cover, the end cover can be clamped between the limiting ring and the bolt head.

[0016] In this technical solution, when the fastening rod is worn due to various reasons and its length decreases, the eccentric bushing cannot make the fastening rod contact the telescopic rod well, resulting in a decrease in the fastening effect of this technical solution. However, through the sliding connection between the fastening slider and the fastening rod and the cooperation of the threaded hole, the positioning groove and the fastening bolt, the fastening rod can always be closely attached to the telescopic rod, improving the practicability of this technical solution.

[0017] The beneficial effects of the present utility model are:

[0018] 1. Through the fastening module, this technical solution can extend to a corresponding length according to the actual situation of the user and be fixed, improving the practicability of this technical solution.

[0019] 2. Through the rounded corners on the fastening rod and the grooves on the first telescopic rod and the second telescopic rod, the telescopic process of this technical solution can be smoother, and at the same time, the fastening effect can be improved during fastening, improving the practicability of this technical solution.

[0020] 3. Through the sliding connection between the fastening slider and the fastening rod and the cooperation of the positioning groove and the fastening bolt, the fastening rod can always be closely attached to the telescopic rod to prevent the fastening effect from decreasing, improving the practicability of this technical solution. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural view of the telescopic handle for a suitcase of the present utility model;

[0022] Figure 2 is a partial structural sectional view of the telescopic handle for a suitcase of the present utility model;

[0023] Figure 3 is a partial structural exploded view of the telescopic handle for a suitcase of the present utility model;

[0024] The reference numerals in the figure are denoted as: 100, the main body of the handle; 110, the base; 120, the retractable rod; 121, the second telescopic rod; 122, the first telescopic rod; 123, the handle; 124, the storage cavity; 125, the telescopic groove; 126, the groove; 130, the mounting plate; 131, the telescopic hole; 200, the fastening module; 210, the fastening frame; 211, the through groove; 212, the moving groove; 213, the opening; 214, the end cap; 215, the positioning groove; 216, the rotating groove; 220, the rotating shaft; 221, the handle; 222, the eccentric bushing; 230, the fastening rod; 231, the rounded corner; 232, the fastening spring; 233, the fastening slider; 234, the threaded hole; 240, the fastening bolt; 241, the limiting ring; 242, the bolt head; 243, the knurling. Detailed Description of the Preferred Embodiments

[0025] Next, the technical solutions in the embodiments of the present application will be clearly described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0026] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail. However, in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] It should be noted that in the description of the present application, the terms "first", "second", etc. in the specification and claims are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein. Moreover, the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects. The character " / ", generally represents an "or" relationship between the associated objects before and after.

[0028] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary instructions, these directional terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the directional terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0029] It should be noted that in the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed. It may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0030] Embodiment 1

[0031] As Figure 1 、 2 shown in FIGS. 1, 2, and 3, the present utility model provides a telescopic pull rod for a suitcase, comprising:

[0032] The pull rod main body 100 is composed of a base 110, a mounting plate 130, a storage rod 120, a first telescopic rod 122, a second telescopic rod 121 and a handle 123. A storage cavity 124 running through up and down is arranged in the storage rod 120. The base 110 is placed at the bottom of the storage rod 120, and the mounting plate 130 is placed at the top of the storage rod 120. A telescopic hole 131 is arranged on the mounting plate 130. The second telescopic rod 121 passes through the telescopic hole 131 and is placed in the storage cavity 124 and is slidably connected with the storage rod 120. A telescopic groove 125 is arranged inside the second telescopic rod 121. The first telescopic rod 122 is placed in the telescopic groove 125 and is slidably connected with the second telescopic rod 121. The top end of the first telescopic rod 122 is connected with the handle 123;

[0033] The fastening module 200 is placed on the mounting plate 130. The fastening module 200 is composed of a fastening frame 210, a fastening rod 230, a fastening slider 233, a fastening spring 232, a rotating shaft 220 and an eccentric bushing 222. A moving groove 212 is arranged at a position corresponding to the storage rod 120 on the fastening frame 210. The fastening rod 230 is placed in the moving groove 212 and is slidably connected with the fastening frame 210. An opening 213 is arranged on one side of the moving groove 212 close to the storage rod 120. A fastening slider 233 is fixedly connected to the fastening rod 230. One end of the fastening slider 233 close to the storage rod 120 is welded to the fastening spring 232. The other end of the fastening spring 232 is connected with the fastening frame 210. A rotating groove 216 is arranged at the upper end of the fastening frame 210. The rotating shaft 220 is placed in the rotating groove 216 and is rotatably connected with the fastening frame 210. The eccentric bushing 222 is sleeved on the rotating shaft 220, and the side wall of the eccentric bushing 222 is closely attached to the fastening slider 233;

[0034] Among them, two groups of storage rods 120 are arranged on the pull rod main body 100. A through groove 211 is arranged on one side of the rotating groove 216 away from the storage rod 120. A handle 221 is fixedly connected to the rotating shaft 220. The handle 221 passes through the through groove 211 and extends out. End caps 214 are respectively arranged on the left and right sides of the fastening frame 210. The end caps 214 are detachably connected with the fastening frame 210. A rounded corner 231 is arranged at one end of the fastening rod 230 close to the storage rod 120. Grooves 126 matching the rounded corner 231 of the fastening rod 230 are arranged on the first telescopic rod 122 and the second telescopic rod 123.

[0035] In this technical solution, the telescopic pull rod for a suitcase is composed of a pull rod main body 100 and a fastening module 200. The pull rod main body 100 is composed of a base 110, a mounting plate 130, a storage rod 120, a first telescopic rod 122, a second telescopic rod 121, and a handle 123. A storage cavity 124 running through up and down is arranged inside the storage rod 120. The base 110 is placed at the bottom of the storage rod 120, and the mounting plate 130 is placed at the top of the storage rod 120. A telescopic hole 131 matching the storage cavity 124 is arranged on the mounting plate 130. The cross-sectional area of the second telescopic rod 121 is smaller than that of the storage cavity 124. The second telescopic rod 121 passes through the telescopic hole 131 and is placed inside the storage cavity 124 to be slidably connected to the storage rod 120. A telescopic groove 125 is arranged inside the second telescopic rod 121. The cross-sectional area of the first telescopic rod 122 is smaller than that of the telescopic groove 125. The first telescopic rod 122 is placed inside the telescopic groove 125 to be slidably connected to the second telescopic rod 121. The top end of the first telescopic rod 122 is connected to the handle 123. Two groups of storage rods 120 are arranged on the pull rod main body 100, and the storage rods 120 are arranged in an array on the base 110 and the mounting plate 130.

[0036] The fastening module 200 is placed on the mounting plate 130. The fastening module 200 is composed of a fastening frame 210, a fastening rod 230, a fastening slider 233, a fastening spring 232, a rotating shaft 220, and an eccentric bushing 222. A moving groove 212 is arranged at a position corresponding to the storage rod 120 on the fastening frame 210. An opening 213 is arranged on one side of the moving groove 212 close to the storage rod 120. The fastening rod 230 is placed inside the moving groove 212 to be slidably connected to the fastening frame 210. The fastening rod 230 extends out through the opening 213 and contacts the side walls of the first telescopic rod 122 and the second telescopic rod 121. A fastening slider 233 is fixedly connected to the fastening rod 230. One end of the fastening slider 233 close to the storage rod 120 is welded to the fastening spring 232, and the other end of the fastening spring 232 is connected to the fastening frame 210. A rotating groove 216 is arranged at the upper end of the fastening frame 210. The rotating shaft 220 is placed inside the rotating groove 216 to be rotatably connected to the fastening frame 210. A through groove 211 is arranged on one side of the rotating groove 216 far from the storage rod 120. A handle 221 is fixedly connected to the rotating shaft 220. The handle 221 passes through the through groove 211 and extends out. The eccentric bushing 222 is sleeved on the rotating shaft 220. The side wall of the eccentric bushing 222 is closely attached to the fastening slider 233. The fastening spring 232 always gives a thrust to the fastening slider 233 and the fastening rod 230 towards the eccentric bushing 222. Through the thrust, the side wall of the eccentric bushing 222 can be closely attached to the fastening slider 233. End caps 214 are arranged on the left and right side walls of the fastening frame 210, and the end caps 214 can be used to assemble the components inside the fastening module 200.

[0037] A rounded corner 231 is provided at one end of the fastening rod 230 close to the receiving rod 120. The rounded corner 231 enables the fastening rod 230 to be more smooth when the first telescopic rod 122 and the second telescopic rod 121 are stretched, reducing the jamming caused by friction and improving the practicability of the technical solution. Grooves 126 matching the rounded corner 231 of the fastening rod 230 are provided on the first telescopic rod 122 and the second telescopic rod 121. The grooves 126 can increase the contact area between the fastening rod 230 and the first telescopic rod 122 and the second telescopic rod 121, making the fastening effect more stable when fastening the technical solution and improving the practicability of the technical solution.

[0038] In this technical solution, the user can pull out the first telescopic rod 122 from the second telescopic rod 121 by stretching the handle 221. When the extended length of the first telescopic rod 122 reaches the limit, the first telescopic rod 122 drives the second telescopic rod 121 to extend from the receiving rod 120. After the telescopic rod of the required length is extended in this technical solution, the handle 221 is rotated to rotate the rotating shaft 220, and the rotating shaft 220 drives the eccentric bushing 222. Since the connection center of the eccentric bushing 222 is not the center of the bushing, and the side wall of the eccentric bushing 222 always fits with the fastening slider 233, the eccentric bushing 222 makes the fastening slider 233 drive the fastening rod 230 to move towards the telescopic rod, and the friction between the fastening rod 230 and the telescopic rod is increased by extrusion to achieve the fastening effect.

[0039] Embodiment 2

[0040] As Figure 1 、 3 shown, this embodiment provides a telescopic handle for a suitcase. In addition to including the technical solution of the embodiment, it also has the following technical features.

[0041] The fastening slider 233 is sleeved on the fastening rod 230 and is slidably connected to the fastening rod 230. A threaded hole 234 is provided on the side wall of the fastening slider 233. A positioning groove 215 is provided at a position corresponding to the threaded hole 234 on the end cover 214 on the side wall of the fastening frame 210. A matching fastening bolt 240 is provided in the threaded hole 234. One end of the fastening bolt 240 away from the threaded hole 234 passes through the positioning groove 215 and extends out. A limiting ring 241 is provided on the fastening bolt 240, and the limiting ring 241 is placed between the threaded hole 234 and the positioning groove 215. A bolt head 242 is provided on the side of the fastening bolt 240 extending out of the positioning groove 215. The bolt head 242 is detachably connected to the fastening bolt 240, and knurling 243 is provided on the bolt head 242.

[0042] In this technical solution, the fastening slider 233 is sleeved on the fastening rod 230 and is slidably connected to the fastening rod 230. A threaded hole 234 is provided on the side wall of the fastening slider 233. At a position corresponding to the threaded hole 234 on the end cover 214 on the side wall of the fastening frame 210, a positioning groove 215 is provided. A matching fastening bolt 240 is provided in the threaded hole 234. The fastening bolt 240 is threadedly connected to the fastening slider 233 through the threaded hole 234. One end of the fastening bolt 240 away from the threaded hole 234 passes through the positioning groove 215 and extends out. A limiting ring 241 is provided on the fastening bolt 240. The outer circle of the cross section of the limiting ring 241 is larger than the cross-sectional width of the positioning groove 215. The limiting ring 241 is placed between the threaded hole 234 and the positioning groove 215. A bolt head 242 is provided on one side of the fastening bolt 240 extending out of the positioning groove 215. Through the limiting ring 241 and the bolt head 242, it can be prevented that the fastening bolt 240 is disengaged from the threaded hole 234 and then falls off and is lost from the fastening frame 210. Knurling 243 is provided on the bolt head 242. Through the knurling 243, the user can better connect the fastening bolt 240 with the threaded hole 234. The bolt head 242 and the fastening bolt 240 are detachably connected. By disassembling the end cover 214, the end cover 214 can be clamped between the limiting ring 241 and the bolt head 242.

[0043] In this technical solution, when the fastening rod 230 is worn due to various reasons and its length is reduced, the eccentric bushing 222 cannot make the fastening rod 230 contact the telescopic rod well, thereby reducing the fastening effect of this technical solution. However, through the sliding connection between the fastening slider 233 and the fastening rod 230 and the cooperation of the threaded hole 234, the positioning groove 215 and the fastening bolt 240, the fastening rod 230 can always be closely attached to the telescopic rod, improving the practicability of this technical solution.

[0044] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the specific implementation manners described. The specific implementation manners are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A telescopic handle for a suitcase, characterized in that, Comprising: A pull rod main body (100), which is composed of a base (110), a mounting plate (130), a storage rod (120), a first telescopic rod (122), a second telescopic rod (121) and a handle (123); A fastening module (200), which is placed on the mounting plate (130). The fastening module (200) is composed of a fastening frame (210), a fastening rod (230), a fastening slider (233), a fastening spring (232), a rotating shaft (220), and an eccentric bushing (222). A moving groove (212) is provided at a position corresponding to the storage rod (120) on the fastening frame (210). The fastening rod (230) is placed in the moving groove (212) and is slidably connected to the fastening frame (210). An opening (213) is provided on one side of the moving groove (212) close to the storage rod (120). A fastening slider (233) is fixedly connected to the fastening rod (230). One end of the fastening slider (233) close to the storage rod (120) is welded to the fastening spring (232). The other end of the fastening spring (232) is connected to the fastening frame (210). A rotating groove (216) is provided at the upper end of the fastening frame (210). The rotating shaft (220) is placed in the rotating groove (216) and is rotatably connected to the fastening frame (210). The eccentric bushing (222) is sleeved on the rotating shaft (220), and the side wall of the eccentric bushing (222) is closely attached to the fastening slider (233); Among them, two sets of storage rods (120) are provided on the pull rod main body (100). A through groove (211) is provided on one side of the rotating groove (216) away from the storage rod (120). A handle (221) is fixedly connected to the rotating shaft (220). The handle (221) passes through the through groove (211) and extends out. End caps (214) are respectively provided on the left and right sides of the fastening frame (210). The end caps (214) are detachably connected to the fastening frame (210).

2. The telescopic pull rod for a suitcase according to claim 1, wherein, A storage cavity (124) that penetrates up and down is provided inside the storage rod (120). The base (110) is placed at the bottom of the storage rod (120). The mounting plate (130) is placed at the top of the storage rod (120). A telescopic hole (131) is provided on the mounting plate (130). The second telescopic rod (121) passes through the telescopic hole (131) and is placed in the storage cavity (124) and is slidably connected to the storage rod (120). A telescopic groove (125) is provided inside the second telescopic rod (121). The first telescopic rod (122) is placed in the telescopic groove (125) and is slidably connected to the second telescopic rod (121). The top end of the first telescopic rod (122) is connected to the handle (123).

3. The telescopic pull rod for a suitcase according to claim 1, characterized in that, The fastening slider (233) is sleeved on the fastening rod (230) and is slidably connected to the fastening rod (230). A threaded hole (234) is provided on the side wall of the fastening slider (233). A positioning groove (215) is provided at a position corresponding to the threaded hole (234) on the end cover (214) on the side wall of the fastening frame (210). A matching fastening bolt (240) is provided in the threaded hole (234). One end of the fastening bolt (240) away from the threaded hole (234) passes through the positioning groove (215) and extends out.

4. The telescopic rod for a suitcase according to claim 3, characterized in that A limiting ring (241) is provided on the fastening bolt (240). The limiting ring (241) is placed between the threaded hole (234) and the positioning groove (215). A bolt head (242) is provided on one side of the fastening bolt (240) extending out of the positioning groove (215). The bolt head (242) is detachably connected to the fastening bolt (240). Knurling (243) is provided on the bolt head (242).

5. The telescopic pull rod for a suitcase according to claim 1, wherein, A fillet (231) is provided at one end of the fastening rod (230) close to the receiving rod (120).

6. The telescopic pull rod for a suitcase according to claim 5, characterized in that, Grooves (126) matching the fillet (231) of the fastening rod (230) are provided on the first telescopic rod (122) and the second telescopic rod (121).

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