Alpenstock telescopic assembly and alpenstock

Abstract

The alpenstock telescopic assembly comprises an outer pipe and an inner pipe capable of sliding in the outer pipe, the inner pipe is connected with a guiding piece, the outer pipe is connected with an end sleeve, the guiding piece is provided with an abutting portion abutting against the inner circumferential wall of the outer pipe, the inner pipe is provided with a through hole, and the end sleeve is connected with the outer pipe. The guide part is provided with an elastic arm extending into the inner pipe, a barb on the elastic arm extends out of the through hole and protrudes out of the outer circumferential wall of the inner pipe, and the inner circumferential wall of the outer pipe and / or the inner circumferential wall of the end sleeve are / is provided with a limiting structure for limiting the barb. According to the alpenstock telescopic assembly, the design that the barb is matched with the limiting structure is adopted, the alpenstock telescopic assembly can effectively prevent the inner pipe from being separated from the outer pipe in the sliding process, stability and reliability of the alpenstock telescopic assembly are guaranteed, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of telescopic rods, and more particularly to a telescopic assembly of a trekking pole and a trekking pole. Background Art

[0002] Telescopic poles are a common mechanical structure, widely used in daily life and industry due to their retractability, storage, and portability. Examples include trekking poles, walking sticks, ski poles, and selfie sticks. Their basic operating principle is to adjust the length of an inner pole by sliding it within an outer pole. To ensure stability during use, a guide is often added to the end of the inner pole. This guide, through its close contact with the inner wall of the outer pole, reduces vibration and enhances structural stability.

[0003] However, the existing telescopic rod structure is prone to the problem of the inner rod and the outer rod separating during actual use. This separation phenomenon not only affects the functionality of the product, but also may cause potential safety hazards. Summary of the Invention

[0004] The present invention aims to address one of the technical problems in the related art to a certain extent. To this end, the present invention proposes a telescopic assembly for a trekking pole. The assembly utilizes a barbed hook and a limiting structure to effectively prevent the inner and outer tubes from separating during sliding, thereby ensuring stability and reliability and reducing safety hazards.

[0005] The utility model also provides a trekking pole with the trekking pole telescopic assembly.

[0006] The technical solution adopted by the present invention is: to provide a telescopic assembly of a trekking pole, comprising an outer tube and an inner tube that can slide inside the outer tube, the inner tube is connected to a guide member, the outer tube is connected to an end sleeve, the guide member has a tightening portion that is tightly pressed against the inner circumferential wall of the outer tube, the inner tube has a through hole, the guide member has an elastic arm extending into the interior of the inner tube, and the barb on the elastic arm extends through the through hole and protrudes from the outer circumferential wall of the inner tube, the inner circumferential wall of the outer tube and / or the inner circumferential wall of the end sleeve have a limiting structure for limiting the barb.

[0007] After adopting the above structure, the telescopic component of the hiking pole can effectively prevent the inner tube and the outer tube from separating during use through the cooperation of the barb and the limiting structure. The barb protrudes out and bulges on the outer peripheral wall of the inner tube. When the inner tube slides relative to the outer tube, the barb will interact with the limiting structure in the outer tube or the end sleeve, thereby providing a limiting effect when necessary. This design not only ensures the stability and reliability of the telescopic component of the hiking pole, but also effectively reduces the potential safety hazards caused by the separation of the pole body. Even in the case of frequent use or under external forces, this design can ensure the firm connection between the inner tube and the outer tube and extend the service life of the product.

[0008] In addition, through the close contact between the pressing part of the guiding member and the inner peripheral wall of the outer tube, the shaking of the telescopic component of the hiking pole during use is further reduced, providing a more stable operation experience. This improved structure is particularly suitable for products such as hiking poles that require high-strength support and frequent telescoping.

[0009] According to an embodiment of the present invention, the limiting structure includes a protruding structure protruding from the inner peripheral wall of the outer tube and / or the inner peripheral wall of the end sleeve, a recessed structure or a hole structure recessed in the inner peripheral wall of the outer tube and / or the inner peripheral wall of the end sleeve; through the cooperation of these limiting structures and the barb, when the inner tube slides to a predetermined position in the outer tube, the barb will mechanically engage or contact the limiting structure, thereby realizing effective limitation of the inner tube. The protruding structure can block the further sliding of the barb and prevent the inner tube from slipping out of the outer tube, while the recessed structure or the hole structure can provide a temporary stopping point for the barb, further enhancing the bonding force between the inner tube and the outer tube. This design of the limiting structure not only simplifies the assembly process of the telescopic component of the hiking pole, but also improves its use reliability. The protruding, recessed or hole structures can all be realized by conventional processing methods, and the manufacturing cost is low.

[0010] According to an embodiment of the present invention, the limiting structure further includes an inner step on the end sleeve; through the limiting effect of the inner step, more accurate positioning can be provided during the contraction and elongation processes of the telescopic component of the hiking pole, thereby improving the service life and reliability of the telescopic component of the hiking pole.

[0011] According to an embodiment of the present invention, the guiding member is symmetrically provided with two elastic arms, and there is a U-shaped groove between the two elastic arms.

[0012] According to an embodiment of the present invention, the U-shaped groove is provided with a reinforcing rib, and the reinforcing rib connects the inner walls of the two elastic arms, and the length of the reinforcing rib is less than the length of the elastic arm; the reinforcing rib is used to connect the inner walls of the two elastic arms, thereby enhancing the overall structural strength of the elastic arms. The design of the reinforcing rib ensures that the elastic arms can still maintain sufficient elasticity and stability when repeatedly subjected to external forces, preventing the elastic arms from being excessively deformed or broken.

[0013] Furthermore, the length of the reinforcing rib is less than that of the elastic arm. Such a design can ensure the structural strength while reserving sufficient elastic range, allowing the elastic arm to have the required elastic deformation ability during limiting and guiding.

[0014] According to an embodiment of the present invention, the barb is provided with a chamfer, and the chamfer faces the direction where the abutting portion is located; through the guidance of the chamfer, the barb can slide into the limiting structure of the outer tube or cooperate with the end sleeve more smoothly, avoiding the occurrence of jamming.

[0015] According to an embodiment of the present invention, the end sleeve is connected with a locking member, and the locking member can be switched back and forth between a locked state and a released state. In the locked state, the locking member makes the end sleeve hold the inner tube tightly, and in the released state, the inner tube can slide within the end sleeve.

[0016] According to an embodiment of the present invention, the end sleeve has a positioning protrusion, and the locking member is provided with a positioning groove corresponding to the position of the positioning protrusion.

[0017] According to an embodiment of the present invention, the locking member includes a cam quick-lock handle and a locking sleeve, and the locking sleeve is sleeved on the outer periphery of the end sleeve.

[0018] A hiking pole includes the hiking pole telescopic assembly described in any one of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of the hiking pole telescopic assembly in the embodiment of the present invention;

[0021] Figure 2 It is a partial exploded view of the hiking pole telescopic assembly in the embodiment of the present invention;

[0022] Figure 3 It is an exploded view of the inner tube and the guide member in the embodiment of the present invention;

[0023] Figure 4 It is a three-dimensional view of the inner tube and the guide member in the embodiment of the present invention;

[0024] Figure 5 It is a three-dimensional view of the guide member in the embodiment of the present invention;

[0025] Figure 6 The semi-sectional perspective view of the guide member in the embodiment of the present utility model;

[0026] Figure 7 The partial structure diagram of the outer tube in the embodiment of the present utility model;

[0027] Figure 8 The partial cross-sectional view of the outer tube in the embodiment of the present utility model;

[0028] Figure 9 The perspective view of the locking member and the end sleeve in the embodiment of the present utility model;

[0029] Figure 10 The structural cross-sectional view of the telescopic assembly of the hiking pole in the embodiment of the present utility model.

[0030] Description of the reference numerals in the figure:

[0031] 1. Inner tube; 2. Guide member; 3. Outer tube; 4. Locking member; 5. End sleeve;

[0032] 11. Through hole;

[0033] 21. Elastic arm; 22. Barbed hook; 23. Tightening portion; 24. Reinforcing rib;

[0034] 22a. Chamfer;

[0035] 41. Cam quick-lock handle; 42. Locking sleeve;

[0036] 51. First inner hole; 52. Second inner hole; 53. Inner step; 54. Positioning protrusion. Specific embodiments

[0037] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model. Embodiment 1

[0038] As Figures 1-10As shown, in this embodiment, a trekking pole telescopic assembly is disclosed, including an outer tube 3 and an inner tube 1 that can slide in the outer tube 3, the inner tube 1 is connected to a guide member 2, the outer tube 3 is connected to an end sleeve 5, the guide member 2 has a tightening portion 23 that is tightly against the inner circumferential wall of the outer tube 3, the inner tube 1 has a through hole 11, the guide member 2 has an elastic arm 21 extending into the interior of the inner tube 1, and the barb 22 on the elastic arm 21 extends through the through hole 11 and protrudes from the outer circumferential wall of the inner tube 1, the inner circumferential wall of the outer tube 3 and / or the inner circumferential wall of the end sleeve 5 have a limiting structure for limiting the barb 22.

[0039] Further, combined with Figures 3-6 As shown, in this embodiment, the guide member 2 is a rod-shaped structure, and a tightening portion 23 is provided at its head to achieve guidance and reduce shaking between the inner and outer tubes 3. The outer diameter of the middle part of the guide member 2 is adapted to the inner hole of the inner tube 1 to ensure a close fit between the guide member 2 and the inner tube 1 and prevent relative movement between the two. In order to achieve a stable connection, a step structure is provided between the head and the middle part of the guide member 2, and the end of the inner tube 1 is pressed against the step surface, so that the guide member 2 can be accurately positioned during assembly and provide structural support for the inner and outer tubes 3. The outer diameter of the tightening portion 23 of the guide member 2 is larger than the outer diameter of the middle part, thereby ensuring close contact between it and the inner wall of the outer tube 3.

[0040] The abutment portion 23 utilizes an annular snap-fit design with multiple spaced notches. The snaps between these notches provide a strong elastic force. This elastic force allows the outer periphery of the abutment portion 23 to more closely conform to the inner circumference of the outer tube 3, further reducing play between the inner and outer tubes 3 while also improving the stability and reliability of the guide member 2. This design allows the abutment portion 23 to better accommodate the subtle deformations that may occur during repeated extension and retraction of the trekking pole assembly, maintaining consistent, close contact.

[0041] Furthermore, two elastic arms 21 are symmetrically positioned at the rear end of the guide member 2, forming a U-shaped groove between the two elastic arms 21. To enhance the strength and durability of the elastic arms 21, reinforcing ribs 24 are provided within the U-shaped groove. These ribs 24 connect the inner walls of the two elastic arms 21, thereby enhancing the structural stability of the elastic arms 21. The length of the ribs 24 is shorter than that of the elastic arms 21, ensuring that the elastic arms 21 maintain their elastic deformation during sliding and increasing their fatigue resistance.

[0042] The barb 22 is provided with a chamfer 22a, which is arranged in the direction of the abutting portion 23. This chamfer 22a serves as a guide, so that when the inner tube 1 and the outer tube 3 slide, the barb 22 can smoothly enter the limiting structure of the outer tube 3, and reduce friction and wear between the barb 22 and the limiting structure during the sliding process.

[0043] Furthermore, in this embodiment, the inner tube 1 is provided with a through hole 11 at the position corresponding to the elastic arm 21. The barb 22 on the elastic arm 21 extends out of the inner tube 1 through the through hole 11, and the extending part of the barb 22 protrudes from the surface of the inner tube 1 and is in close contact with the inner peripheral wall of the outer tube 3. During this process, the convex design of the barb 22 ensures the stable connection between the inner tube 1 and the outer tube 3, and effectively prevents the inner tube 1 from separating from the outer tube 3 during sliding.

[0044] Combined with Figure 10 As shown, during the process of the barb 22 tightly abutting against the inner peripheral wall of the outer tube 3, the elastic arm 21 undergoes elastic deformation due to being squeezed. Through this deformation, the elastic arm 21 can adapt to the minute changes in the inner wall of the outer tube 3 or the increase in friction force, thereby ensuring that the barb 22 always maintains close contact with the outer tube 3.

[0045] Furthermore, combined with Figure 8 As shown, in this embodiment, the limiting structure further includes an inner step 53 on the end sleeve 5. The inside of the end sleeve 5 is provided with a coaxial first inner hole 51 and a second inner hole 52, and an inner step 53 is provided between the first inner hole 51 and the second inner hole 52. The inner diameter of the first inner hole 51 is larger than that of the second inner hole 52, and the outer tube 3 is in close fit with the first inner hole 51. The inner diameter of the outer tube 3 is larger than that of the first inner hole 51, such that a part of the inner step 53 is exposed on the inner surface of the outer tube 3. This design ensures the formation of a firm limiting structure between the outer tube 3 and the end sleeve 5. The inner step 53 can not only provide support but also cooperate with other limiting elements to prevent the separation of the inner and outer tubes 3.

[0046] The inner wall of the second inner hole 52 is provided with a plurality of cuts, which help to enhance the fastening between the end sleeve 5 and the inner tube 1. The end sleeve 5 is connected with a locking member 4, and the locking member 4 can freely switch between a locked state and a released state. In the locked state, the locking member 4 tightly holds the inner tube 1 by squeezing or wrapping the end sleeve 5, thereby ensuring that the relative position between the inner tube 1 and the outer tube 3 remains fixed and preventing sliding. In the released state, the locking member 4 is released, allowing the inner tube 1 to freely slide within the end sleeve 5 and the outer tube 3, facilitating the user to adjust the length of the telescopic component of the hiking pole.

[0047] Specifically, the inner diameter of the second inner hole 52 varies within a certain range of values. The smaller inner diameter within this range of values is smaller than the outer diameter of the inner tube 1, such that the end sleeve 5 can firmly hold the inner tube 1 in the locked state and keep its position unchanged. When the inner diameter of the second inner hole 52 increases to the larger value within the range of values, it is larger than the outer diameter of the inner tube 1, such that the inner tube 1 can slide within the outer tube 3 to achieve length adjustment.

[0048] The end sleeve 5 has a positioning protrusion 54, and the locking member 4 is provided with a positioning groove (not shown in the figure) at a position corresponding to the positioning protrusion 54. This positioning design can ensure that when locking, the locking member 4 and the positioning protrusion 54 are precisely matched, guaranteeing the stability and position accuracy of the inner tube 1, and preventing unnecessary sliding or deflection of the inner and outer tubes 3. This structure provides high reliability and adjustability during use and is applicable to devices that need to be frequently telescoped, such as hiking poles, luggage, and other products.

[0049] Specifically, in some other embodiments, the limiting structure includes a protruding structure protruding from the inner peripheral wall of the outer tube 3 and / or the inner peripheral wall of the end sleeve 5, or a recessed structure or hole structure recessed in the inner peripheral wall of the outer tube 3 and / or the inner peripheral wall of the end sleeve 5. These limiting structures can provide an effective limiting function during the sliding process of the inner tube 1 and the outer tube 3 by cooperating with the barbs 22, preventing the inner tube 1 from accidentally disengaging from the outer tube 3, and at the same time maintaining the stability and smoothness of the telescopic assembly of the hiking pole.

[0050] Furthermore, in some other embodiments, the limiting structure can replace the inner step 53 in this embodiment with an annular groove, annular protrusion, or hole on the inner peripheral wall of the outer tube 3. The setting of the annular groove or annular protrusion provides more design flexibility and can flexibly adjust the limiting position and strength according to the specific requirements of the product. These structures can be achieved by conventional processing methods and can effectively cooperate with the barbs 22 to provide precise limiting and anti-disengagement effects.

[0051] In some other embodiments, the annular groove or annular protrusion on the inner peripheral wall of the end sleeve 5 can also replace the inner step 53 in this embodiment. This design simplifies the structure of the end sleeve 5 and at the same time ensures the limiting effect of the telescopic assembly of the hiking pole during use. Through these annular structures, the position of the inner tube 1 in the outer tube 3 can be effectively restricted, avoiding accidental sliding or detachment, and ensuring the safety and convenience of using the telescopic assembly of the hiking pole.

[0052] Specifically, in combination with Figure 7 As shown, the locking member 4 includes a cam quick-lock handle 41 and a locking sleeve 42. The locking sleeve 42 is sleeved on the outer periphery of the end sleeve 5 to control the tightness state of the end sleeve 5. By rotating the cam quick-lock handle 41, the tightening degree of the locking sleeve 42 can be adjusted, thereby realizing the locking or loosening operation of the end sleeve 5.

[0053] In the locked state, the cam quick-lock handle 41 applies pressure through its cam structure to tighten the locking sleeve 42, increasing the frictional force between the inner peripheral wall of the end sleeve 5 and the outer peripheral wall of the inner tube 1, ensuring that the position between the inner tube 1 and the outer tube 3 remains fixed and preventing the inner tube 1 from sliding. In the unlocked state, the cam quick-lock handle 41 releases pressure by rotating, and the locking sleeve 42 loosens, enabling the inner tube 1 to slide freely within the end sleeve 5, thus facilitating the user to adjust the length of the telescopic component of the hiking pole.

[0054] In this embodiment, to prevent the separation of the inner rod and the outer rod, the working principle is as follows:

[0055] First, by rotating the cam quick-lock handle 41, the locking member 4 is switched from the locked state to the unlocked state. At this time, the frictional force between the inner tube 1 and the outer tube 3 decreases, allowing them to slide relative to each other. Next, the user can pull the inner tube 1 and / or the outer tube 3 to move them away from each other. During the movement, the guiding member 2 on the inner tube 1 always remains in close contact with the inner wall of the outer tube 3, maintaining a stable guiding function.

[0056] When the inner tube 1 continues to slide and reaches the position of the inner step 53, the barb 22 also moves to this position. At this time, the inner step 53 abuts against the barb 22, forming a limiting effect to hinder the further movement of the inner tube 1. Due to the design of the barb 22, it cannot easily pass when encountering the inner step 53, creating a strong block between the inner tube 1 and the outer tube 3 to prevent the inner tube 1 from completely separating from the outer tube 3.

[0057] To complete the separation of the inner and outer tubes 3, the user needs to apply a large external force or repeatedly pull the inner tube 1 and / or the outer tube 3 several times until the barb 22 overcomes the blocking effect of the inner step 53 to achieve separation.

[0058] In another embodiment, a hiking pole is disclosed, including the telescopic component of the hiking pole described in this embodiment.

[0059] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0060] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0061] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0062] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A telescopic component of a hiking pole, comprising an outer tube and an inner tube that can slide within the outer tube. The inner tube is connected with a guiding member, and the outer tube is connected with an end sleeve. The guiding member has a pressing portion that tightly abuts against the inner peripheral wall of the outer tube, and is characterized in that: The inner tube has a through hole. The guiding member has an elastic arm extending into the interior of the inner tube, and barbs on the elastic arm protrude through the through hole and protrude from the outer peripheral wall of the inner tube. The inner peripheral wall of the outer tube and / or the inner peripheral wall of the end sleeve has a limiting structure for limiting the barbs.

2. The telescopic component of a hiking pole according to claim 1, characterized in that: The limiting structure includes a protruding structure protruding from the inner peripheral wall of the outer tube and / or the inner peripheral wall of the end sleeve, a recessed structure recessed from the inner peripheral wall of the outer tube and / or the inner peripheral wall of the end sleeve, or a hole structure.

3. The telescopic component of a hiking pole according to claim 2, wherein: The limiting structure further includes an inner step on the end sleeve.

4. The telescopic component of a hiking pole according to claim 1, characterized in that: The guiding member is symmetrically provided with two elastic arms, and there is a U-shaped groove between the two elastic arms.

5. The telescopic component of a hiking pole according to claim 4, characterized in that: The U-shaped groove has a reinforcing rib, and the reinforcing rib connects the inner walls of the two elastic arms, and the length of the reinforcing rib is less than the length of the elastic arm.

6. A telescopic component of a hiking pole according to any one of claims 1-5, characterized in that: The barb is provided with a chamfer, and the chamfer faces the direction where the abutting portion is located.

7. The telescopic component of a hiking pole according to claim 1, wherein: The end sleeve is connected with a locking member, and the locking member can be switched back and forth between a locked state and a released state. In the locked state, the locking member makes the end sleeve tightly hold the inner tube, and in the released state, the inner tube can slide in the end sleeve.

8. The telescopic assembly of a hiking pole according to claim 7, wherein: The end sleeve has a positioning protrusion, and the locking member is provided with a positioning groove corresponding to the position of the positioning protrusion.

9. The telescopic component of a hiking pole according to claim 7, characterized in that: The locking member includes a cam quick-lock handle and a locking sleeve, and the locking sleeve is sleeved on the outer periphery of the end sleeve.

10. A hiking pole, characterized in that: It includes the telescopic assembly of a hiking pole according to any one of claims 1-9.

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