Telescopic rod mechanism, pull rod and luggage

Abstract

The application provides a telescopic rod mechanism, a pull rod and a luggage. The telescopic rod mechanism comprises a tubular structure, a first locking assembly, a second locking assembly, a pushing piece, a first extension piece and a wire; the tubular structure comprises a first tube body, a second tube body and a third tube body; the first locking assembly is arranged on the first tube body; the first locking assembly locks the second tube body and unlocks the second tube body when being pressed; the second locking assembly is arranged on the second tube body; the second locking assembly locks the third tube body and unlocks the third tube body when being pressed; the pushing piece is arranged in the first tube body and pushes the first locking assembly; and the first extension piece is used for pressing the second locking assembly when the pushing piece presses the first locking assembly. The laminated arrangement structure enables the wire to be elastically stretched or rebounded to be bent, thereby supporting the tubular structure to be elongated or shortened, and further preventing the wire from being damaged.

Description

Technical Field

[0001] This application relates to the field of luggage technology, specifically to a telescopic rod mechanism, a pull rod, and a luggage. Background Technology

[0002] Telescopic rod mechanisms are commonly used in luggage handles, retractable clotheslines, and retractable selfie sticks. To facilitate control of extension and retraction, these mechanisms typically consist of two relatively movable tubular sections, with a locking assembly between them to lock or unlock the sections and allow them to extend or retract relative to each other. However, telescopic rod mechanisms composed of two tubular sections are relatively long when retracted, occupying a significant amount of space. Utility Model Content

[0003] In view of this, it is necessary to provide a telescopic rod mechanism, a pull rod, and a suitcase, which aims to improve the problem of the excessive length of the shortened telescopic rod mechanism.

[0004] One embodiment of this application provides a telescopic rod mechanism, including a tubular structure comprising a first tube, a second tube, and a third tube. The second tube is sleeved on the first tube, and the third tube is sleeved on the second tube. The telescopic rod mechanism further includes a first locking assembly, a second locking assembly, a pusher, a first extension member, and a wire. The first locking assembly is disposed on the first tube and is used to lock the second tube. When pressed, the first locking assembly unlocks the second tube and moves axially along the tubular structure within the second tube along with the first tube. The second locking assembly is disposed on the second tube and is used to... The third tube is locked; the second locking assembly unlocks the second tube when pressed and moves along the axial direction within the third tube with the second tube; a pusher is disposed within the first tube and is used to press against the first locking assembly; a first extension extends from the first locking assembly toward the second locking assembly and is used to press against the second locking assembly when the pusher presses against the first locking assembly; a wire extends from opposite ends of the tubular structure along the axial direction, and the wire is at least partially bent continuously in three-dimensional space to form an elastically deformable layered arrangement structure, which can be elastically straightened or spring back.

[0005] In the aforementioned telescopic rod mechanism, the pusher unlocks the first locking assembly, and the first extension transmits the pushing force of the pusher to unlock the second locking assembly. This allows the first tube to move relative to the second tube, and the second tube to move relative to the third tube, enabling the tubular structure to extend and shorten, thus flexibly adjusting the length of the telescopic rod mechanism. The first and second locking assemblies also lock the second and third tubes to fix the adjusted length of the tubular structure. The layered arrangement allows the conductor to straighten or bend elastically, supporting the extension or shortening of the tubular structure and preventing damage to the conductor.

[0006] In some embodiments, the wire includes two stacked arrangement structures, which are spaced apart and respectively located on opposite sides of the second locking assembly.

[0007] In some embodiments, when the first extension abuts against the second latching assembly, a first gap is formed between the first latching assembly and the second latching assembly, the first gap being capable of accommodating one of the stacked arrangement structures.

[0008] In some embodiments, the telescopic rod mechanism further includes a second extension member extending from the second locking assembly toward the first locking assembly; when the second locking assembly moves with the second tube body inside the third tube body, the second locking assembly abuts against the end of the third tube body to form a second gap between the second locking assembly and the end of the third tube body, the second gap being able to accommodate one of the stacked arrangement structures.

[0009] In some embodiments, the first locking assembly is provided with a first groove, and the second locking assembly is provided with a second groove, the first groove and the second groove corresponding along the axial direction; when the stacked arrangement structure switches between elastic extension or rebound, the wire can move along the axial direction within the first groove and the second groove; the first extension member and the first groove are respectively provided on both sides of the width of the first locking assembly, and the second extension member and the second groove are respectively provided on both sides of the width of the second locking assembly.

[0010] In some embodiments, the second latching assembly has a mating groove on the side facing the first latching assembly, and when the pusher presses against the first latching assembly, the mating groove can accommodate a portion of the first extension.

[0011] In some embodiments, the stacked arrangement structure is spiral.

[0012] In some embodiments, the second tube body is provided with at least two first positioning portions at intervals; the third tube body is provided with at least two second positioning portions at intervals; the first locking assembly includes a first fixing portion, a first deformable portion, and a first movable portion, the first fixing portion being fixed to the first tube body, the first movable portion being horizontally movably disposed on the first fixing portion, the first deformable portion being disposed between the first fixing portion and the first movable portion, and being elastically deformable under the drive of the first movable portion, the rebound of the first deformable portion enabling the first movable portion to connect with the corresponding first positioning portion; the second locking assembly includes a second fixing portion, a second deformable portion, and a second movable portion, the first... Two fixed parts are fixed to the second tube body. The second movable part is horizontally movable and disposed between the second fixed part and the second movable part. The second deformable part is disposed between the second fixed part and the second movable part and can elastically deform under the drive of the second movable part. The rebound of the second deformable part can enable the second movable part to connect with the corresponding second positioning part. The first movable part has a first inclined surface, which is used to engage with the pusher, so that the first movable part can move horizontally under the pressure of the pusher. The second movable part has a second inclined surface, which is used to engage with the first extension, so that the second movable part can move horizontally under the pressure of the first extension.

[0013] In some embodiments, this application also provides a lever, including a grip and a telescopic lever mechanism as described in any of the above embodiments; the grip is connected to the telescopic lever mechanism and is configured to drive the telescopic lever mechanism to extend or retract.

[0014] The aforementioned pull rod employs the telescopic rod mechanism, allowing for flexible adjustment of its length by pressing the gripping part. After the pull rod is shortened by the telescopic rod mechanism, the third tube can accommodate the second tube, and the second tube can accommodate the first tube, saving space occupied by the shortened pull rod. The layered arrangement structure allows the conductor to straighten or bend elastically, thus supporting the extension or shortening of the pull rod.

[0015] In some embodiments, this application also provides a suitcase, including a suitcase body, driven wheels, and a pull rod as described in any of the above embodiments; the suitcase body is connected to the pull rod; the driven wheels are rotatably disposed on the suitcase body.

[0016] The aforementioned suitcase uses the aforementioned pull rod, which allows for flexible adjustment of the rod's length, facilitating the operation and control of the suitcase. Attached Figure Description

[0017] Figure 1 This is a perspective view of a suitcase according to one embodiment of this application.

[0018] Figure 2 yes Figure 1 A 3D view of the middle tie rod when it is shortened.

[0019] Figure 3 yes Figure 1 A 3D view of the tie rod when it extends.

[0020] Figure 4 This is a cross-sectional view of a telescopic rod mechanism in one embodiment of this application, wherein the telescopic rod mechanism is in a shortened state.

[0021] Figure 5 yes Figure 4 A cross-sectional view of the telescopic rod mechanism when it is extended.

[0022] Figure 6 This is a three-dimensional exploded view of the first and second locking components in one embodiment of this application after being cut open.

[0023] Figure 7 for Figure 6 A three-dimensional exploded view from another perspective.

[0024] Explanation of main component symbols

[0025] 100. Telescopic rod mechanism; 11. First tube body; 12. Second tube body; 121. First positioning part; 13. Third tube body; 131. Second positioning part; 21. First locking assembly; 211. First fixing part; 212. First moving part; 2121. First inclined surface; 2122. Protruding post; 213. First deformable part; 22. Second locking assembly; 221. Second fixing part; 222. Second moving part; 2221. Second inclined plane; 223, second deformation part; 224, driven part; 225, auxiliary spring; 30, pusher; 31, docking part; 41, first extension part; 42, second extension part; 50, wire; 51, layered arrangement structure; 200, pull rod; 210, grip part; 211, button; 212, knob; 300, luggage box; 310, box body; 320, drive wheel; 330, driven wheel; 340, steering wheel. Detailed Implementation

[0026] The technical solution of this application will now be described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments.

[0027] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application.

[0028] One embodiment of this application provides a telescopic rod mechanism, including a tubular structure comprising a first tube, a second tube, and a third tube. The second tube is sleeved on the first tube, and the third tube is sleeved on the second tube. The telescopic rod mechanism further includes a first locking assembly, a second locking assembly, a pusher, a first extension member, and a wire. The first locking assembly is disposed on the first tube and is used to lock the second tube. The first locking assembly unlocks the second tube when compressed and moves axially along the tubular structure within the second tube along with the first tube. The second locking assembly is disposed on the second tube and... The third tube is used to lock the second tube body; the second locking assembly unlocks the second tube body when pressed and moves along the axial direction within the third tube body with the second tube body; a pusher is disposed within the first tube body and is used to press against the first locking assembly; a first extension extends from the first locking assembly toward the second locking assembly and is used to press against the second locking assembly when the pusher presses against the first locking assembly; a wire extends from the opposite ends of the tubular structure along the axial direction, and the wire is at least partially bent continuously in three-dimensional space to form an elastically deformable stacked arrangement structure, which can be elastically straightened or spring back.

[0029] In the aforementioned telescopic rod mechanism, the pusher unlocks the first locking assembly, and the first extension transmits the pushing force of the pusher to unlock the second locking assembly. This allows the first tube to move relative to the second tube, and the second tube to move relative to the third tube, enabling the tubular structure to extend and shorten, thus flexibly adjusting the length of the telescopic rod mechanism. The first and second locking assemblies also lock the second and third tubes to fix the adjusted length of the tubular structure. The layered arrangement allows the conductor to straighten or bend elastically, supporting the extension or shortening of the tubular structure and preventing damage to the conductor.

[0030] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Please see Figures 1 to 3 This application provides a telescopic rod mechanism 100 that can extend or retract. The telescopic rod mechanism 100 is used in extendable products such as the pull rod 200 of a suitcase 300, a mobile phone selfie stick, and a clothes drying rack.

[0032] This application also provides a pull rod 200 for use in a suitcase 300. The pull rod 200 includes a telescopic rod mechanism 100 and a grip portion 210, the grip portion 210 being connected to one end of the telescopic rod mechanism 100 and used to drive the telescopic rod mechanism 100 to extend or retract.

[0033] A button 211 is provided on the top of the grip 210. By pressing the button 211, the telescopic rod mechanism 100 can be extended or retracted.

[0034] Please see Figure 1 This application also provides a suitcase 300, including a suitcase body 310 and driven wheels 330. The driven wheels 330 are rotatably disposed at the bottom of the suitcase body 310, and when the driven wheels 330 rotate, they can drive the suitcase body 310 to move on a support platform (such as the ground). For example, the bottom of the suitcase body 310 is provided with four driven wheels 330, which are disposed at the four corners of the suitcase body 310 to support the suitcase body 310 and enable the suitcase body 310 to move stably on the support platform.

[0035] The suitcase 300 also includes a pull rod 200, which is located on the suitcase body 310, and the grip part 210 is exposed on the top of the suitcase body 310, so that the user can hold the grip part 210 and move the suitcase body 310 on the support platform.

[0036] Please combine Figure 4 and Figure 5 The telescopic rod mechanism 100 includes a tubular structure 10, which comprises a first tube 11, a second tube 12, and a third tube 13. The second tube 12 is fitted onto the first tube 11 and can move along the axial direction of the first tube 11. The third tube 13 is fitted onto the second tube 12 and can move along the axial direction of the second tube 12, thereby allowing the tubular structure 10 to extend or shorten. The axial directions of the first tube 11, the second tube 12, and the third tube 13 are parallel and can all serve as the axial direction of the tubular structure 10. For ease of description, the axial direction of the tubular structure 10 will be referred to as the axial direction in the following text.

[0037] The telescopic rod mechanism 100 also includes a first locking assembly 21, a second locking assembly 22, a pusher 30, and a first extension 41. The first locking assembly 21 is fixedly disposed in the first tube 11, and the second locking assembly 22 is fixedly disposed in the second tube 12. The pusher 30 is disposed inside the first tube 11 and can press against the first locking assembly 21 to apply a pushing force to the first locking assembly 21, thereby compressing the first locking assembly 21. The first extension 41 extends from the first locking assembly 21 toward the second locking assembly 22. When the pusher 30 presses against the first locking assembly 21, the first extension 41 is used to press against the second locking assembly 22 to apply a pushing force to the second locking assembly 22, thereby compressing the second locking assembly 22. Both the pusher 30 and the first extension 41 extend axially.

[0038] For example, the grip 210 is fixedly connected to the top end of the first tube 11, and the button 211 corresponds to the pusher 30. By pressing the button 211, the pusher 30 can press down the first locking assembly 21. The housing 310 is fixed to at least part of the outer side of the third tube 13, so that by holding the grip 210, the first tube 11 can be moved relative to the second tube 12, and the first tube 11 and the second tube 12 can be moved relative to the third tube 13, thereby extending or shortening the telescopic rod mechanism 100 and changing the distance between the grip 210 and the housing 310.

[0039] The first locking assembly 21 is fixedly disposed at the bottom end of the first tube 11, the second locking assembly 22 is fixedly disposed at the bottom end of the second tube 12, and the first extension 41 is disposed at the bottom end of the first locking assembly 21. The first locking assembly 21 is used to lock the second tube 12 and unlock the second tube 12 when pressed. When the first locking assembly 21 unlocks the second tube 12 under the pressure of the pusher 30, the first locking assembly 21 can move axially with the first tube 11 within the second tube 12, allowing the first locking assembly 21 to move closer to or away from the second locking assembly 22. The second locking assembly 22 is used to lock the third tube 13 and unlock the third tube 13 when pressed. When the first locking assembly 21 moves closer to the second locking assembly 22 until the first extension 41 presses against the second locking assembly 22, the second locking assembly 22 unlocks the third tube 13. At this time, the second locking assembly 22 can move axially with the second tube 12 within the third tube 13.

[0040] In use, pressing button 211 causes pusher 30 to press against first locking assembly 21, unlocking second tube 12. At this time, first tube 11 can move relative to second tube 12. If the first tube 11 is driven downwards, the first extension 41 presses against second locking assembly 22, unlocking third tube 13. At this time, first tube 11 can move relative to third tube 13 along with second tube 12. If the grip 210 is driven downwards, first tube 11 is positioned inside second tube 12, and second tube 12 is positioned inside third tube 13, thus shortening the tubular structure 10 and reducing the space occupied by the telescopic rod mechanism 100. If the grip 210 is driven upwards, first tube 11 extends out of second tube 12, and second tube 12 extends out of third tube 13, thus elongating the tubular structure 10.

[0041] In the aforementioned telescopic rod mechanism 100, the pusher 30 can unlock the first locking assembly 21, and the first extension 41 can transmit the pushing force of the pusher 30 to unlock the second locking assembly 22, allowing the first tube 11 to move relative to the second tube 12, and the second tube 12 to move relative to the third tube 13. In other words, the tubular structure 10 can extend and shorten to flexibly adjust the length of the telescopic rod mechanism 100. The first locking assembly 21 and the second locking assembly 22 can also lock the second tube 12 and the third tube 13 to fix the adjusted length of the tubular structure 10.

[0042] Please combine Figure 4 and Figure 5 The axial length of the first tube 11 is less than the axial length of the second tube 12, and the axial length of the second tube 12 is less than the axial length of the third tube 13. This allows the third tube 13 to accommodate the second tube 12, and the second tube 12 to accommodate the first tube 11.

[0043] In some embodiments, a control unit (not shown) is installed inside the grip 210, and a power button and a knob 212 are installed outside the grip 210. The control unit is electrically connected to the power button (not shown) and the knob 212.

[0044] Please combine Figure 1 The housing 310 houses a controlled unit (not shown). A drive wheel 320 and a steering wheel 340 are rotatably mounted on the bottom of the housing 310. The controlled unit is electrically connected to the drive wheel 320 and the steering wheel 340. Exemplarily, both the control unit and the controlled unit are circuit boards.

[0045] Please combine Figure 4 and Figure 5 The telescopic rod mechanism 100 also includes a conductor 50. The conductor 50 extends axially from the upper and lower ends of the tubular structure 10. The conductor 50 is at least partially bent continuously in three-dimensional space to form an elastically deformable stacked arrangement structure 51, which can elastically straighten or spring back to bend. The stacked arrangement structure 51 allows the conductor 50 to elastically straighten or spring back to bend, thereby supporting the elongation or shortening of the tubular structure and preventing damage to the conductor 50.

[0046] The wire 50 electrically connects the control unit and the controlled unit. In this way, the power button and the knob 212 can transmit signals through the wire 50. The power button can cause the controlled unit to control the rotation of the drive wheel 320, which in turn can drive the housing 310 to move on the support platform. The knob 212 can cause the controlled unit to control the rotation of the steering wheel 340 in the vertical direction, thereby adjusting the direction of movement of the housing 310.

[0047] When the tubular structure 10 elongates, the stacked arrangement structure 51 elastically straightens, stretching the conductor 50. The stacked arrangement structure 51 provides space for the conductor 50 to elongate, preventing the conductor 50 from breaking due to the elongation of the tubular structure 10. When the tubular structure 10 shortens, the stacked arrangement structure 51 springs back and bends to organize the conductor 50 and prevent it from tangling.

[0048] In some embodiments, the stacked arrangement structure 51 is spiral-shaped. The conductors 50, by vertically stacking in three-dimensional space to form a spiral stacked arrangement structure 51, can reduce the space occupied by the spiral and increase the length of the conductors 50 when straightened. The conductors 50 are spring wires.

[0049] In some embodiments, the conductor 50 includes two stacked structures 51, which are spaced apart and respectively located on opposite sides of the second locking assembly 22 in the axial direction. Both stacked structures 51 are elastically straightened to reduce the risk of the conductor 50 breaking when the tubular structure 10 extends.

[0050] One of the stacked arrangement structures 51 is disposed between the first locking assembly 21 and the second locking assembly 22, and the other stacked arrangement structure 51 is disposed on the side of the second locking assembly 22 facing away from the first locking assembly 21. The other part of the wire 50 extends axially, and the axially extended part of the wire 50 bypasses or passes through the first locking assembly 21 and the second locking assembly 22.

[0051] When the first extension 41 presses against the second locking assembly 22, a first gap is formed between the first locking assembly 21 and the second locking assembly 22. This first gap can accommodate one of the stacked arrangement structures 51, preventing the stacked arrangement structure 51 from being crushed due to mutual pressure between the first locking assembly 21 and the second locking assembly 22. Thus, the first extension 41 can both transmit thrust to unlock the second locking assembly 22 and provide sufficient space for the stacked arrangement structure 51.

[0052] In some embodiments, the telescopic rod mechanism 100 further includes a second extension 42 extending from the second locking assembly 22 away from the first locking assembly 21. When the second locking assembly 22 moves within the third tube 13 along with the second tube 12, the second lock abuts against the end of the third tube 13, creating a second gap between the second locking assembly 22 and the end of the third tube 13. This second gap accommodates one of the stacked arrangement structures 51, preventing the second locking assembly 22 from pressing down on the stacked arrangement structure 51 and causing it to be crushed or damaged.

[0053] The first extension 41 and the second extension 42 provide sufficient space for the two stacked structures 51 to protect the stacked structures 51 and allow the conductors 50 to be smoothly and elastically straightened and bent back.

[0054] In some embodiments, the second locking assembly 22 has a mating groove on the side facing the first locking assembly 21. When the pusher 30 presses against the first locking assembly 21, the mating groove allows a portion of the first extension 41 to be inserted. By accommodating a portion of the first extension 41 in the mating groove, the connection between the first locking assembly 21 and the second locking assembly 22 is stabilized, preventing relative wobbling. In other embodiments, the second locking assembly 22 extends partially into the mating groove to engage with the first extension 41.

[0055] In some embodiments, the first locking assembly 21 has a first groove, and the second locking assembly 22 has a second groove, with the first groove and the second groove corresponding along the axial direction. When the stacked arrangement structure 51 switches between elastic extension and rebound, the conductor 50 can move along the axial direction within the first groove and the second groove. The interiors of the first groove and the second groove match the outer periphery of the conductor 50 to position the conductor 50.

[0056] The first extension 41 and the first groove are respectively disposed on both sides of the width of the first latch assembly 21, and the second extension 42 and the second groove are respectively disposed on both sides of the width of the second latch assembly 22, thereby providing sufficient space for the stacked arrangement structure 51.

[0057] The axial extension portion of the conductor 50 and the first extension member 41 are respectively located on both sides of the width of the first locking assembly 21, which helps to allow the conductor 50 and the first extension member 41 to avoid each other, so as to prevent the first extension member 41 from interfering with the conductor 50 and affecting the elastic straightening or rebound of the conductor 50. Among them, the first extension member 41 and the second extension member 42 are both rod-shaped to reduce the space occupied by the first extension member 41 and the second extension member 42.

[0058] In some embodiments, the second tube body 12 is provided with at least two first positioning portions 121 spaced apart; the first locking assembly 21 includes a first fixing portion 211, a first deformable portion 213, and a first moving portion 212. The first fixing portion 211 is fixed to the first tube body 11, and the first extension 41 is fixedly connected to the bottom of the first fixing portion 211. The first moving portion 212 is horizontally movably disposed on the first fixing portion 211, and the first deformable portion 213 is disposed between the first fixing portion 211 and the first moving portion 212, and can elastically deform under the drive of the first moving portion 212.

[0059] The third tube 13 is provided with at least two second positioning portions 131 spaced apart. The second locking assembly 22 includes a second fixing portion 221, a second deformation portion 223, and a second moving portion 222. The second fixing portion 221 is fixed to the second tube 12, and the second extension 42 is fixedly connected to the bottom of the second fixing portion 221. The second moving portion 222 is horizontally movably disposed on the second fixing portion 221, and the second deformation portion 223 is disposed between the first fixing portion 211 and the second moving portion 222, and can elastically deform under the drive of the second moving portion 222. The moving directions of the first moving portion 212 and the second moving portion 222 are perpendicular to the axial direction.

[0060] When the first moving part 212 corresponds to any one of the first positioning parts 121, the rebound of the first deformable part 213 enables the first moving part 212 to connect with the corresponding first positioning part 121, thereby locking the position of the first tube 11 relative to the second tube 12. When the second moving part 222 corresponds to any one of the second positioning parts 131, the rebound of the second deformable part 223 enables the second moving part 222 to connect with the corresponding second positioning part 131, thereby locking the position of the second tube 12 relative to the third tube 13. Both the first deformable part 213 and the second deformable part 223 are configured as springs.

[0061] At least two first positioning parts 121 are respectively disposed at opposite ends of the second tube 12 along the axial direction, and at least two second positioning parts 131 are respectively disposed at opposite ends of the third tube 13 along the axial direction. When the first moving part 212 is connected to the first positioning part 121 at the top of the second tube 12 and the second moving part 222 is connected to the second positioning part 131 at the top of the third tube 13, the tubular structure 10 is locked in the position with the longest length. When the first moving part 212 is connected to the first positioning part 121 at the bottom of the second tube 12 and the second moving part 222 is connected to the second positioning part 131 at the bottom of the third tube 13, the tubular structure 10 is locked in the position with the shortest length.

[0062] Please combine Figures 4 to 7 In some embodiments, both the first moving part 212 and the second moving part 222 include a protrusion. The first positioning part 121 and the second positioning part 131 are both configured as positioning holes. The protrusion is used to insert into the positioning hole so that the first moving part 212 locks the second tube 12 and the second moving part 222 locks the third tube 13.

[0063] In some embodiments, the first moving part 212 has a first inclined surface 2121, which is used to engage with the pusher 30, so that the first moving part 212 can move horizontally under the pressure of the pusher 30, thereby causing the first moving part 212 to exit the first positioning part 121, and the first deformation part 213 to be elastically compressed, that is, the first locking assembly 21 unlocks the second tube body 12.

[0064] The second moving part 222 has a second inclined surface 2221, which is used to engage with the first extension 41, so that the second moving part 222 can move horizontally under the pressure of the first extension 41, thereby causing the second moving part 222 to exit the second positioning part 131, and the second deformation part 223 to be elastically compressed, that is, the second locking assembly 22 unlocks the third tube 13.

[0065] In some embodiments, the bottom end of the pusher 30 and the mating groove are provided with a docking member 31. The docking member 31 at the bottom end of the pusher 30 is engaged with the first inclined surface 2121, and the docking member 31 in the mating groove is engaged with the second inclined surface 2221, so that the first moving part 212 and the second moving part 222 can move horizontally when pressed.

[0066] Please combine Figure 6 and Figure 7 In some embodiments, the second locking assembly 22 further includes a driven part 224, which is movably disposed on the fixed part and can move horizontally relative to the second moving part 222. A second deformable part 223 is sleeved on the driven part 224 to prevent the second deformable part 223 from shaking. An auxiliary spring 225 is provided between the driven part 224 and the second moving part 222, and the auxiliary spring 225 elastically pushes against the driven part 224. The second positioning part 131 is horizontally disposed through the third tube 13, so that the driven part 224 can be inserted into the corresponding second positioning part 131 together with the second moving part 222.

[0067] When the second moving part 222 retracts from the second positioning part 131, the second deforming part 223 is elastically compressed, and the gripping part 210 is pulled to move the second tube 12 relative to the third tube 13. This causes the driven part 224 to be forced out of the second positioning part 131 and move with the second tube 12. When the second moving part 222 and the driven part 224 correspond to the second positioning part 131, the auxiliary spring 225 and the second deforming part 223 rebound to connect the second moving part 222 and the driven part 224 to the corresponding second positioning part 131, so that the connection between the second tube 12 and the third tube 13 is more stable.

[0068] In some embodiments, the pusher 30 is in the shape of a round rod, and a return spring (not shown) is sleeved on the pusher 30. The return spring is elastically compressed when the gripping part 210 is pressed, and rebounds to reset the pusher 30 upward when the gripping part 210 is not subjected to external force.

[0069] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A telescopic rod mechanism, characterized in that, The system includes a tubular structure comprising a first tube, a second tube, and a third tube, wherein the second tube is sleeved on the first tube, and the third tube is sleeved on the second tube. The telescopic rod mechanism further includes: A first locking assembly is disposed on the first tube body and is used to lock the second tube body; the first locking assembly unlocks the second tube body when pressed and moves along the axial direction of the tubular structure within the second tube body along with the first tube body; A second locking assembly is disposed on the second tube body and is used to lock the third tube body; the second locking assembly unlocks the second tube body when pressed and moves along the axial direction within the third tube body along with the second tube body; A pusher is disposed inside the first tube and is used to press against the first locking assembly; A first extension extends from the first latching assembly toward the second latching assembly and is used to press against the second latching assembly when the pusher presses against the first latching assembly; The conductor extends from the opposite ends of the tubular structure along the axial direction. At least part of the conductor is continuously bent in three-dimensional space to form an elastically deformable stacked structure. The stacked structure can be elastically straightened or spring back.

2. The telescopic rod mechanism as described in claim 1, characterized in that: The conductor includes two stacked structures, which are spaced apart and respectively located on opposite sides of the second locking assembly.

3. The telescopic rod mechanism as described in claim 2, characterized in that: When the first extension presses against the second locking assembly, a first gap is formed between the first locking assembly and the second locking assembly, and the first gap can accommodate one of the stacked arrangement structures.

4. The telescopic rod mechanism as described in claim 1 or 2, characterized in that: The telescopic rod mechanism further includes a second extension member, which extends from the second locking assembly toward the first locking assembly; When the second locking assembly moves with the second tube body inside the third tube body, the second locking assembly abuts against the end of the third tube body to form a second gap between the second locking assembly and the end of the third tube body, the second gap being able to accommodate one of the stacked arrangement structures.

5. The telescopic rod mechanism as described in claim 4, characterized in that: The first locking assembly is provided with a first groove, and the second locking assembly is provided with a second groove. The first groove and the second groove correspond to each other along the axial direction. When the stacked arrangement structure switches between elastic extension or rebound, the wire can move along the axial direction within the first groove and the second groove. The first extension member and the first groove are respectively disposed on both sides of the width of the first latching assembly, and the second extension member and the second groove are respectively disposed on both sides of the width of the second latching assembly.

6. The telescopic rod mechanism as described in claim 3, characterized in that: The second locking assembly has a mating groove on the side facing the first locking assembly. When the pusher presses against the first locking assembly, the mating groove can accommodate a portion of the first extension.

7. The telescopic rod mechanism as described in claim 1, characterized in that: The layered arrangement structure is spiral.

8. The telescopic rod mechanism as described in claim 1, characterized in that: The second tube body is provided with at least two first positioning parts at intervals; the third tube body is provided with at least two second positioning parts at intervals. The first locking assembly includes a first fixing part, a first deformable part, and a first movable part. The first fixing part is fixed to the first tube body. The first movable part is horizontally movable and disposed between the first fixing part and the first movable part. The first deformable part is disposed between the first fixing part and the first movable part and can be elastically deformed under the drive of the first movable part. The rebound of the first deformable part can enable the first movable part to connect with the corresponding first positioning part. The second locking assembly includes a second fixing part, a second deformable part, and a second movable part. The second fixing part is fixed to the second tube body. The second movable part is horizontally movable and disposed between the second fixing part and the second movable part. The second deformable part is disposed between the second fixing part and the second movable part and can be elastically deformed under the drive of the second movable part. The rebound of the second deformable part can enable the second movable part to connect with the corresponding second positioning part. The first moving part has a first inclined surface, which is used to engage with the pusher, so that the first moving part can move horizontally under the pressure of the pusher; The second moving part has a second inclined surface, which is used to engage with the first extension member, so that the second moving part can move horizontally under the pressure of the first extension member.

9. A pull rod, characterized in that, include: The telescopic rod mechanism as described in any one of claims 1 to 8; The grip is connected to the telescopic rod mechanism and is configured to drive the telescopic rod mechanism to extend or retract.

10. A suitcase, characterized in that, include: The pull rod as described in claim 9; The housing is connected to the pull rod; Driven wheel, rotatably mounted on the housing.

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