trekking pole

Abstract

The application relates to the field of outdoor products, and particularly discloses a hiking stick which comprises an outer rod, an inner rod and a locking structure installed at the end of the outer rod, wherein one end of the outer rod is a connecting end, the locking structure is installed at the connecting end, and one end of the inner rod extends into the outer rod from the opening of the connecting end; the inner rod is provided with a radially protruding stop part, the inner wall of the locking structure is provided with an annular limiting part and a disengaging opening; when the inner rod is rotated to a first angle, the stop part axially abuts against the limiting part to prevent the inner rod from being disengaged; when the inner rod is rotated to a second angle, the stop part is aligned with the disengaging opening to allow the inner rod to be axially extracted; the stop part and the annular limiting part form rigid axial abutment, so that even if the locking structure fails or encounters strong impact, the inner rod cannot be disengaged from the outer rod, and the risk of accidental disintegration during use is eliminated; when the stop part is precisely aligned with the disengaging opening, the inner rod can be directly axially extracted without auxiliary operations such as pressing and prying, and the inner rod is convenient to disassemble.

Description

Technical Field

[0001] This application relates to the field of outdoor products, and in particular to a trekking pole. Background Technology

[0002] The anti-detachment design of the inner pole of a trekking pole is crucial to ensuring safe use. Through understanding the relevant technologies, some technologies use fixing rings or rivets to permanently prevent the inner pole from detaching. Once assembled, the inner pole cannot be disassembled, making it extremely difficult to clean, replace, or maintain the internal components.

[0003] In addition, some detachable designs rely on elastic buckles, requiring manual pressing of the stop part to pull out the inner rod. The parts that need to be pressed are easily exposed on the outside of the rod, affecting the overall appearance of the rod, and there is a risk of pinching injury during operation. Utility Model Content

[0004] The purpose of at least one specific embodiment of this utility model is to overcome the defects of the existing technology and provide a hiking stick.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A trekking pole, comprising:

[0007] outer rod;

[0008] The inner rod is telescopically mounted inside the outer rod;

[0009] A locking structure, installed at the end of the outer rod, is used to lock the extension / retraction position of the inner rod;

[0010] The inner rod is provided with a radially protruding stop part, and the inner wall of the locking structure is provided with an annular limiting part and a release port;

[0011] When the inner rod rotates to the first angle, the stop part and the limiting part axially abut against each other, preventing the inner rod from disengaging.

[0012] When the inner rod rotates to the second angle, the stop part aligns with the release port, allowing the inner rod to be pulled out axially.

[0013] Furthermore, the inner rod has a through hole and an elastic element is provided in the inner rod, which provides elastic support to the stop part.

[0014] The stop portion is radially telescopically provided in the through hole and is supported and reset by an elastic element.

[0015] Furthermore, the stop portion has an inclined extrusion surface and a stop surface;

[0016] The inclined extrusion surface is configured such that when the inner rod is inserted into the outer rod, it is extruded by the inner wall of the outer rod or the annular limiting part, driving the stop part to retract radially inward;

[0017] The stop surface is constructed such that when the inner rod is stretched to its limit position, it forms a plane that abuts against the annular limiting part of the locking structure, preventing the inner rod from axially disengaging.

[0018] Furthermore, when the locking structure is installed at the end of the outer rod, the annular limiting part and the end face of the outer rod form an annular limiting groove. The limiting groove is connected to the release port. When the inner rod is stretched to the limit position, the stop part elastically resets and extends into the limiting groove.

[0019] Furthermore, during the installation of the inner rod, the stop part is circumferentially aligned with the release port and then inserted axially, so that the stop part passes through the release port; or, the inner rod is axially pushed so that the inclined pressing surface of the stop part is compressed by the annular limiting part and radially retracts until it slides into the limiting groove.

[0020] Furthermore, the circumferential width of the release port is greater than the radial protrusion width of the stop portion, but less than the circumferential width of the limiting portion.

[0021] Furthermore, one end of the outer rod has an open slot, and the locking structure includes a clamping sleeve and an operating component. The clamping sleeve is fixedly installed on the end of the outer rod with the open slot. By operating the operating component, the clamping sleeve can apply a clamping force to the outer rod, and the outer rod deforms based on the open slot to clamp the inner rod.

[0022] Furthermore, a positioning element is provided between the clamping sleeve and the outer rod. One of the outer rod and the clamping sleeve has a positioning protrusion, and the other has a positioning hole corresponding to the positioning protrusion. The positioning protrusion and the positioning hole are constructed as positioning elements.

[0023] Furthermore, the extension path of the opening groove runs through the end of the outer rod, and the clamping force area of ​​the clamping sleeve covers the end opening of the opening groove. When the clamping sleeve clamps, its inner wall simultaneously presses the two sides of the opening groove to deform inward.

[0024] Furthermore, the operating components include a handle and a linkage arm, the clamping sleeve has a connecting part, and the two ends of the linkage arm are respectively hinged to the connecting part and the handle to form a four-bar linkage mechanism.

[0025] Furthermore, the clamping sleeve has an opening, and the connecting part includes a first connecting part and a second connecting part disposed on both sides of the opening;

[0026] The spacing between the first connecting part and the second connecting part is configured as follows:

[0027] When the operating component applies a clamping force, the gap distance decreases, causing the clamping sleeve to undergo radial elastic deformation;

[0028] When the operating part releases the clamping force, the interval distance increases under the action of the elastic restoring force of the clamping sleeve.

[0029] Furthermore, a waist-shaped guide hole is provided on the handle, and the linkage arm is slidably connected to the waist-shaped guide hole through a pin;

[0030] The waist-shaped guide hole includes a first end and a second end. When the locking structure is in the locked state, the pin is located at the first end, forming a mechanical self-locking dead point.

[0031] Compared with the prior art, the beneficial effects of this application are: 1. The stop part and the annular limiting part form a rigid axial abutment, so even if the locking structure fails or encounters a strong impact, the inner rod will not detach from the outer rod, eliminating the risk of accidental disintegration during use.

[0032] 2. When the stop part is precisely aligned with the release port, the inner rod can be directly pulled out axially without the need for pressing, prying or other auxiliary operations, making the disassembly of the inner rod convenient.

[0033] 3. When assembling the inner rod and the outer rod, the inner rod does not need to be pre-adjusted in angle. The inclined surface of the stop part is automatically retracted and slid in by the inner wall of the locking structure (in conjunction with the elastic element). The assembly is completed by "blind insertion", and the installation operation of the inner rod is convenient. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a structural diagram of the trekking pole used in this application.

[0036] Figure 2 This is a schematic diagram of the explosion of the hiking pole used in this application.

[0037] Figure 3 This is a schematic diagram of the assembly between the inner and outer rods of this application.

[0038] Figure 4 This is a schematic diagram of the longitudinal cross-section of the trekking pole after assembly according to this application.

[0039] Figure 5 for Figure 4 Enlarged view of area A in the image.

[0040] Figure 6 This is a schematic diagram of the locking structure of this application.

[0041] Figure 7 This is a cross-sectional schematic diagram of the locking structure of this application.

[0042] Figure 8 This is a schematic diagram of the internal rod structure of this application.

[0043] Figure 9This is a schematic diagram of the inner rod in the first position when it is stretched relative to the outer rod.

[0044] Figure 10 This is a schematic diagram of the inner rod in the second position when it is stretched relative to the outer rod.

[0045] Figure 11 This is a schematic diagram of the inner rod in the third position when it is stretched relative to the outer rod.

[0046] Figure 12 This is a schematic diagram of the inner rod in the fourth position when it is stretched relative to the outer rod.

[0047] Figure 13 This is a schematic diagram illustrating the state change of the inner rod relative to the outer rod when stretched.

[0048] Figure 14 This is a schematic diagram showing the contact between the exposed end of the stop portion and the side wall A1 of the inclined opening groove section when the inner rod is stretched relative to the outer rod.

[0049] Figure 15 This is a schematic diagram showing the stop part and the opening groove of this application when they are not initially in contact. Detailed Implementation

[0050] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0051] Reference Figure 1 , Figure 2A trekking pole 100 includes an outer pole 10, an inner pole 20, and a locking structure 30 installed at the end of the outer pole 10. One end of the outer pole 10 is a connecting end, and the locking structure 30 is installed at the connecting end. One end of the inner pole 20 extends into the outer pole 10 through the opening at the connecting end. The connecting end of the outer pole 10 has an opening groove 101. The locking structure 30 has a clamping function. When the locking structure 30 is in the locked state, it applies a radial clamping force to the connecting end of the outer pole 10. Because the connecting end of the outer pole 10 has an opening groove 101, when the connecting end of the outer pole 10 is subjected to a radial clamping force, a radial force is generated. The deformation causes the inner rod 20 to be gripped tightly, and the inner rod 20 stops relative to the outer rod 10. When it is necessary to adjust the relative extension and retraction length of the outer rod 10 and the inner rod 20, the locking structure 30 can be unlocked. After the locking structure 30 is unlocked, the radial gripping force exerted by the locking structure 30 on the outer rod 10 disappears, and the corresponding gripping force exerted by the outer rod 10 on the inner rod 20 disappears. The inner rod 20 can then freely extend and retract relative to the outer rod 10. When the inner rod 20 extends and retracts to a suitable length, the locking structure 30 is locked again, which can position the inner rod 20 and achieve position locking between the outer rod 10 and the inner rod 20.

[0052] Specifically, refer to Figure 6 , Figure 7 The locking structure 30 includes a clamping sleeve 301 with an opening, a linkage arm 302, and a handle 303. The clamping sleeve 301 has a first connecting portion 3011 and a second connecting portion 3012 spaced apart from each other at its opening. One end of the linkage arm 302 is rotatably connected to the first connecting portion 3011 via a first pin 304. One end of the handle 303 is rotatably connected to the second connecting portion 3012 via a second pin 305. The other end of the linkage arm 302 is rotatably connected to the handle 303 via a third pin 306. The third pin 306 is positioned close to the second pin 305. An adjusting screw 307 is rotatably connected to the three-pin shaft 306. The handle 303 has a mounting port 308, and a nut 309 is provided in the mounting port 308. One end of the adjusting screw 307 extends into the mounting port 308 and is threadedly connected to the nut 309. In addition, the handle 303 also has a waist-shaped guide hole 310. The end of the third pin shaft 306 extends into the waist-shaped guide hole 310. One end of the inner cavity of the waist-shaped guide hole 310 is the first end 310a, and the other end is the second end 310b. The inner cavity of the waist-shaped guide hole 310 restricts the movement trajectory of the third pin shaft 306 relative to the handle 303.

[0053] Understandably, the opening of the clamping sleeve 301 is in the open state. The linkage arm 302, handle 303, first pin 304, second pin 305, third pin 306 and adjusting screw 307 constitute a four-bar linkage mechanism. When locking is required, the operator turns the handle 303 (usually in the direction that brings the handle 303 closer to the clamping sleeve 301). The handle 303 rotates around the second pin 305. Since the handle 303 is connected to the other end of the linkage arm 302 through the third pin 306, the rotation of the handle 303 will drive the linkage arm 302 to move. Specifically, the linkage arm 302 rotates around the first pin 304.

[0054] In addition, the threaded engagement between the nut 309 and the adjusting screw 307 can change the initial gap size of the clamping sleeve 301 opening, ultimately determining the maximum clamping force (tightness) that can be achieved when the handle 303 is turned for locking operation, as well as the adaptability to clamping different sized outer rods 10. When the nut 309 is rotated to make the adjusting screw 307 unscrew (the adjusting screw 307 moves away from the handle 303 relative to the nut 309), the third pin 306 is pulled outward (away from the mounting port 308 of the handle 303). This forces the linkage arm 302 and the handle 303 to produce a slight relative movement around their respective fixed pins (the first pin 304 and the second pin 305), which increases the included angle formed by the linkage arm 302 and the handle 303, or can be understood as the mechanism as a whole "opening up" a little.

[0055] When the nut 309 is rotated to screw in the adjusting screw 307 (the adjusting screw 307 moves towards the handle 303 relative to the nut 309), the third pin 306 is pushed inward (towards the mounting port 308 of the handle 303). This forces the linkage arm 302 and the handle 303 to produce a slight relative movement around their respective fixed pins, which reduces the included angle formed by the linkage arm 302 and the handle 303, or can be understood as the mechanism as a whole "shrinking" a little. The initial gap size of the clamping sleeve 301 opening can be adjusted by rotating the nut 309 in both directions.

[0056] In short, when the handle 303 is turned to perform the locking operation, the third pin 306 slides along the trajectory of the waist-shaped guide hole 310 from a position near the second end 310b to a position near the first end 310a. The movement of the linkage arm 302 and the handle 303 (especially the movement of the third pin 306 guided by the waist-shaped guide hole 310 towards the first end 310a) will apply a force to the two connecting parts 3011 and 3012 of the clamping sleeve 301, bringing them closer together. This force overcomes the elasticity of the clamping sleeve 301 material itself, causing the opening of the clamping sleeve 301 to gradually narrow. The narrowed opening applies a clamping force, firmly holding the outer rod 10, thus realizing the locking function between the outer rod 10 and the inner rod 20.

[0057] It should be noted that when the third pin 306 moves to the vicinity of the first end 310a of the waist-shaped guide hole 310, the mechanism approaches or reaches a "dead point" position. In this position, even if the handle 303 is released, the mechanism is unlikely to move in the opposite direction under the action of clamping force, further enhancing the reliability of locking.

[0058] When the locking structure 30 needs to be unlocked, the handle 303 is rotated in the opposite direction, and the process is reversed. The third pin 306 slides from the first end 310a to the second end 310b along the waist-shaped guide hole 310. The movement of the linkage arm 302 and the handle 303 causes the two connecting parts 3011 and 3012 of the clamping sleeve 301 to move away from each other. The opening of the clamping sleeve 301 opens under the action of elasticity, releasing the clamped object (outer rod 10).

[0059] Furthermore, since the locking structure 30 is located at the end of the outer rod 10, it clamps the connection between the outer rod 10 and the inner rod 20. To prevent the locking structure 30 from falling off the outer rod 10, the clamping sleeve 301 and the outer rod 10 need to be positioned by a fixing structure. In this embodiment, the clamping sleeve 301 and the outer rod 10 are provided with a positioning hole 102 on one side and a positioning protrusion 311 corresponding to the positioning hole 102 on the other side. Specifically, the positioning hole 102 is located on the outer rod 10, and the positioning protrusion 311 is located on the inner wall of the clamping sleeve 301. The entire locking structure 30 is limited and fixed at the end of the outer rod 10 through the cooperation of the positioning protrusion 311 and the positioning hole 102. When the inner rod 20 extends or retracts relative to the outer rod 10, it will not loosen due to contact with the clamping sleeve 301.

[0060] The mechanical interlocking structure between the positioning protrusion 311 and the positioning hole 102 achieves precise assembly and rigid connection between the clamping sleeve and the outer rod, ensuring that the clamping sleeve 301 always accurately covers the key deformation area of ​​the opening slot 101 of the outer rod 10. This allows the clamping force to be transmitted evenly and efficiently to the outer rod 10 through the clamping sleeve 301, inducing the opening slot 101 to produce the expected deformation to hold the inner rod 20. This avoids the problem of reduced or uneven locking force caused by the displacement of the clamping sleeve 301. At the same time, when the trekking pole is subjected to road impacts, vibrations, or accidental bumps, this structure can effectively resist axial and circumferential loads, completely eliminating the risk of loosening or displacement of the clamping sleeve due to external forces, and significantly improving the reliability of the product in harsh outdoor environments.

[0061] Furthermore, refer to Figure 4 , Figure 5 , Figure 8To ensure safety during the relative extension and retraction of the outer rod 10 and the inner rod 20, and to prevent the inner rod 20 from accidentally detaching from the outer rod 10 due to excessive stretching, a stop assembly 40 is provided inside the inner rod 20. The stop assembly 40 includes a stop head 401 fixedly installed in the inner cavity of the inner rod 20. One end of the stop head 401 has an opening 402, and an elastic element 403 is installed at the opening 402. An elastic portion 404 extending to the opening 402 is formed at the end of the stop head 401. The end of the elastic portion 404 forms a stop portion 405, and the elastic element 403 is supported at the bottom of the elastic portion 404.

[0062] The inner rod 20 has a through hole 201 on its tube wall, and a stop portion 405 protrudes outward from the through hole 201, with its exposed portion higher than the outer surface of the inner rod 20. The stop portion 405 has a radially outward stop surface 405a and an axially inclined pressing surface 405b.

[0063] Additionally, refer to Figure 2 , Figure 3 The clamping sleeve 301 has an annular limiting part 312 on its inner wall, and a release port 313 on the annular limiting part 312. After the locking structure 30 is fixedly installed on the end of the outer rod 10 through the cooperation of the positioning protrusion 311 and the positioning hole 102, an annular limiting groove 314 is formed between the limiting part 312 and the end face of the outer rod 10. The limiting groove 314 communicates with the release port 313. When the inner rod 20 is assembled into the outer rod 10, the end of the inner rod 20 with the stop part 405 needs to be inserted into the outer rod 10. There are two ways to assemble the inner rod 20.

[0064] The first method involves positioning the end of the inner rod 20 with the stop portion 405 towards the clamping sleeve 301, aligning the stop portion 405 on the inner rod 20 with the release opening 313 on the clamping sleeve 301 circumferentially. As the inner rod 20 continues to extend, its end will penetrate the clamping sleeve 301 and extend into the outer rod 10. Simultaneously, the stop portion 405 will pass through the release opening 313 and extend into the limiting groove 314. Upon further pushing the inner rod 20 in, the end face 103 of the outer rod 10 will press against the stop portion. The inclined pressing surface 405b of 405 forces the stop part 405 to overcome the elastic force of the elastic member 403 and move radially inward until its top surface is flush with or substantially flush with the outer surface of the inner rod 20 (at which point the elastic member 403 is in a compressed state). Then, the inner rod 20 can continue to smoothly extend into the outer rod 10, thus completing the assembly of the inner rod 20. After the inner rod 20 has extended or retracted to a suitable length relative to the outer rod 10, the locking structure 30 can be used to lock the inner rod 20 at the required length. It should be noted that during the free extension and retraction of the inner rod 20, the stop part 405 is always radially constrained by the inner wall surface of the outer rod 10, and the top surface of the stop part 405 is always flush with or substantially flush with the outer surface of the inner rod 20. It should be noted that "substantially flush" means that the top surface of the stop part 405 and the outer surface of the inner rod 20 have a very small height difference due to the movement gap, and are nearly on the same plane.

[0065] Another assembly method for the inner rod 20 is as follows: With the end of the inner rod 20 having the stop portion 405 facing the clamping sleeve 301, without aligning the circumferential positions of the stop portion 405 and the release port 313, the end of the inner rod 20 is directly inserted into the clamping sleeve 301 to achieve "blind insertion." During "blind insertion," the inclined pressing surface 405b of the stop portion 405 on the inner rod 20 will contact the annular limiting portion 312 on the inner wall of the clamping sleeve 301. When an axial thrust is applied, the inclined pressing surface 405b, under the pressing action of the limiting portion 312, forces the stop portion 405 to overcome the elastic force of the elastic member 403 and move radially inward until its top surface is flush with or substantially flush with the outer surface of the inner rod 20 (at this time, the elastic member 403 is in a compressed state). In this state, the stop part 405 smoothly enters the limiting groove 314 (the stop part 405 resets). When the inner rod 20 is pushed in further, the end face 103 of the outer rod 10 will press the inclined pressing surface 405b of the stop part 405. After the stop part 405 is radially pressed, the inner rod 20 can smoothly continue to extend into the inner part of the outer rod 10. At this time, the assembly of the inner rod 20 is completed. After the inner rod 20 is extended and retracted to a suitable length relative to the outer rod 10, the inner rod 20 can be locked at the required length position by operating the locking structure 30.

[0066] When it is necessary to adjust the extension length of the inner rod 20, first unlock the locking structure 30, and then pull the inner rod 20 outward. As the inner rod 20 extends further, the relative length between the outer rod 10 and the inner rod 20 increases. When the inner rod 20 is pulled to its limit position, the stop part 405 on the inner rod 20 is also located at the position of the limiting groove 314. At this time, the stop part 405 is freed from the radial constraint of the inner wall surface of the outer rod 10. Under the elastic force of the elastic element 403, the stop part 405 is radially ejected from the through hole 201, indicating that the stop part 405 has reset and sprung into the limiting groove 314. The inner rod 20 is in the limit tension position. At this time, the stop part 405 limits the extension stroke of the inner rod 20. When the inner rod 20 is pulled further, the stop surface 405a of the stop part 405 abuts against the limiting part 312 of the clamping sleeve 301, preventing the inner rod 20 from being pulled out further, thereby preventing it from completely separating from the outer rod 10.

[0067] To completely disassemble the inner rod 20, in the unlocked state, pull the inner rod 20 to its limit position, then rotate the inner rod 20 so that its stop part 405 is circumferentially aligned with the release port 313 on the inner wall limiting part 312 of the clamping sleeve 301. At this time, pull the inner rod 20 out, and the stop part 405 can pass through the release port 313 without obstruction, so the inner rod 20 can be smoothly pulled out from the outer rod 10.

[0068] Furthermore, it should be noted that in this embodiment, the opening groove 101 includes an inclined opening groove section 101a and a straight opening groove section 101b that are interconnected. This opening groove 101 not only makes it easy for the outer rod 10 to undergo elastic deformation under the action of radial clamping force to achieve the locking function, but also plays an important guiding role for the telescopic movement of the inner rod 20, effectively preventing the inner rod 20 from jamming due to circumferential displacement during the telescopic process.

[0069] Specifically, refer to Figures 9 to 12 In this embodiment, the width of the stop portion 405 is greater than the width of the inclined opening slot section 101a and the straight opening slot section 101b. When the inner rod 20 extends and retracts relative to the outer rod 10, and the stop portion 405 reaches the area where the opening slot 101 is located, a portion of the stop portion 405 on the inner rod 20 will be exposed in the path of the opening slot 101. Since the stop portion 405 is always radially constrained by the inner wall surface of the outer rod 10 during the extension and retraction of the inner rod 20 relative to the outer rod 10, one end of the stop portion 405 is radially compressed by the inner wall surface of the outer rod 10, while the other end exposed at the opening slot 101 is not radially compressed by the inner wall surface of the outer rod 10. This end area will be slightly raised due to unilateral bias, and a portion of the end face will extend into the opening slot 101 and contact the side wall of the opening slot 101 (see reference). Figure 14 (As shown).

[0070] Continue to refer to Figure 13 As shown, the tensioning process of the inner rod 20 is taken as an example:

[0071] In the first stage, as the inner rod 20 is gradually stretched, the stop part 405 will gradually be exposed at the inclined opening slot section 101a. During this process, the stop part 405 will be continuously biased on one side, so that the end area exposed at the inclined opening slot section 101a will be slightly raised.

[0072] In the second stage, the end region exposed at the inclined opening slot section 101a begins to contact and slide against the side wall A1 of the inclined opening slot section 101a. During this sliding process, the side wall A1 of the inclined opening slot section 101a applies a lateral force to the stop portion 405, forcing the inner rod 20 to rotate circumferentially at a small angle while being stretched axially.

[0073] In the third stage, as the stretching continues, the stop portion 405 slides past the smooth inflection point into the region of the straight opening groove section 101b. At this point, one end of the stop portion 405 contacts and slides against the side wall B1 of the straight opening groove section 101b. The side wall B1 of the straight opening groove section 101b mainly provides axial guidance, constraining the inner rod 20 to move along a straight trajectory, thereby ensuring the smoothness of the subsequent stretching process.

[0074] The straight opening groove section 101b extends to the end of the outer rod 10. When the inner rod 20 is stretched to its limit position, the stop part 405 slides along the straight opening groove section 101b to abut against the limiting part 312 at the end of the outer rod 10.

[0075] The presence of the opening slot 101 is crucial for the outer rod 10 to undergo radial deformation to clamp the inner rod 20. The entire opening slot 101 works together to allow the outer rod 10 to contract and deform under the clamping force of the locking structure 30. The dual-segment design of the opening slot 101 optimizes and enhances the guiding function, especially for the telescopic movement of the inner rod 20 with the protruding stop 405, effectively preventing jamming. In the initial stretching stage of the inner rod 20, the stop 405 first contacts the side wall of the inclined opening slot segment 101a. The inclined slot wall applies a lateral component force to the stop 405, forcing the inner rod 20 to generate a small-angle circumferential rotation while stretching axially, allowing the stop 405 to smoothly transition to the starting position of the straight segment 101b. After being guided and angled by the inclined section, the stop part 405 enters the straight opening groove section 101b. The straight groove wall mainly provides strict axial constraints, restricting the circumferential freedom of the stop part 405 (thereby restricting the inner rod 20). The straight guide eliminates the possibility of the stop part 405 twisting or deviating in the groove, ensuring that the inner rod 20 slides smoothly along the straight trajectory during the main stretching stroke, avoiding increased friction or jamming caused by circumferential misalignment. Moreover, the friction of the straight contact surface is more stable and controllable, significantly improving the user's operating feel for stretching / retracting the inner rod 20. The straight section extends all the way to the end of the outer rod 10, accurately and stably guiding the stop part 405 to the limiting part 312, ensuring that the anti-detachment stop function is reliably triggered.

[0076] Furthermore, in order to ensure that the stop part 405 and the opening groove 101 effectively form a guiding fit during the extension and retraction adjustment of the inner rod 20, when the two are not initially in contact, the central axis L1 of the stop part 405 is located between the edge axes L2 and L3 of the opening groove 101. Further, the edge axis L5 of the stop part 405 is located between the edge axes L2 and L3 of the opening groove 101, so that at least a part of the stop part 405 is in the "effective guiding coverage range" of the opening groove 101 in advance. When the inner rod 20 begins to stretch and the stop part 405 moves closer to the opening groove 101, this part of the area can quickly form contact with the side wall of the groove and transmit the force required for guidance in a timely manner.

[0077] Meanwhile, the other edge axis L4 of the stop part 405 is located outside the edge axes L2 and L3 of the opening groove 101, leaving room for its one-sided biased tilting.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A trekking pole, comprising: outer rod; An inner rod, which is telescopically disposed within the outer rod; A locking structure, which is installed at the end of the outer rod, is used to lock the telescopic position of the inner rod; The feature is that the inner rod is provided with a radially protruding stop portion, and the inner wall of the locking structure is provided with an annular limiting portion and a release port; When the inner rod rotates to the first angle, the stop part and the limiting part axially abut against each other to prevent the inner rod from disengaging. When the inner rod rotates to the second angle, the stop portion aligns with the release port, allowing the inner rod to be pulled out axially.

2. The trekking pole according to claim 1, characterized in that, The inner rod has a through hole and an elastic element is provided in the inner rod, which provides elastic support for the stop part; The stop portion is radially extendable and retractable in the through hole, and is supported and reset by the elastic element.

3. The trekking pole according to claim 1, characterized in that, The stop portion has an inclined extrusion surface and a stop surface; The inclined extrusion surface is configured such that when the inner rod is inserted into the outer rod, it is extruded by the inner wall of the outer rod or the annular limiting part, driving the stop part to retract radially inward; The stop surface is configured such that when the inner rod is stretched to its limit position, it abuts against the annular limiting part of the locking structure, preventing the inner rod from axially disengaging.

4. The trekking pole according to claim 3, characterized in that, When the locking structure is installed at the end of the outer rod, the annular limiting part and the end face of the outer rod form an annular limiting groove. The limiting groove is connected to the release port. When the inner rod is stretched to the limit position, the stop part elastically resets and extends into the limiting groove.

5. The trekking pole according to claim 4, characterized in that, When installing the inner rod, the stop part is circumferentially aligned with the release port and then inserted axially, so that the stop part passes through the release port; or, the inner rod is axially pushed so that the inclined pressing surface of the stop part is pressed radially inward by the annular limiting part until it slides into the limiting groove.

6. The trekking pole according to claim 1, characterized in that, The circumferential width of the release port is greater than the radial protrusion width of the stop portion, and less than the annular width of the annular limiting portion.

7. The trekking pole according to claim 1, characterized in that, One end of the outer rod has an opening groove. The locking structure includes a clamping sleeve and an operating component. The clamping sleeve is fixedly installed on the end of the outer rod with the opening groove. By operating the operating component, the clamping sleeve can apply a clamping force to the outer rod, and the outer rod deforms based on the opening groove to clamp the inner rod.

8. The trekking pole according to claim 7, characterized in that, A positioning element is provided between the clamping sleeve and the outer rod. One of the outer rod and the clamping sleeve is provided with a positioning protrusion, and the other is provided with a positioning hole corresponding to the positioning protrusion. The positioning protrusion and the positioning hole are constructed as the positioning element.

9. The trekking pole according to claim 7, characterized in that, The extension path of the opening groove runs through the end of the outer rod, and the clamping force area of ​​the clamping sleeve covers the end opening of the opening groove. When the clamping sleeve clamps, its inner wall simultaneously presses the two side walls of the opening groove to deform inward.

10. The trekking pole according to claim 7, characterized in that, The operating component includes a handle and a linkage arm. The clamping sleeve has a connecting part, and the two ends of the linkage arm are respectively hinged to the connecting part and the handle to form a four-bar linkage mechanism.

11. The trekking pole according to claim 10, characterized in that, The clamping sleeve has an opening, and the connecting part includes a first connecting part and a second connecting part disposed on both sides of the opening; The spacing between the first connecting part and the second connecting part is configured as follows: When the operating component applies a clamping force, the interval distance decreases, causing the clamping sleeve to undergo radial elastic deformation; When the operating component releases the clamping force, the interval distance increases under the action of the elastic restoring force of the clamping sleeve.

Images