Cross-country ski pole combined pole tip quick-changing structure and cross-country ski pole

Abstract

The utility model discloses a combined stick tip quick-changing structure of a cross-country ski stick and the cross-country ski stick, and belongs to the technical field of cross-country ski sticks. A combined stick tip quick-changing structure of a cross-country ski stick comprises a pipe sleeve and a snow fence connected with the pipe sleeve, the end of the snow fence is connected with a stick tip of the ski stick, the snow fence is detachably connected with the pipe sleeve and the stick tip, the pipe sleeve is connected with a first connecting part, and the snow fence is provided with a second connecting part and a guide part which are connected with the first connecting part in a matched mode. The first connecting part penetrates through the guide part to be connected with the second connecting part, and a quick-changing part is arranged at the joint of the pipe sleeve and the snow fence. The ski pole is simple in structure and safe and reliable to use, the detachable structure is convenient to replace, the whole ski pole does not need to be replaced after the pole tip is abraded, only the snow fence needs to be replaced, the use cost is reduced, when the snow fence needs to be replaced, the snow fence is separated from the pipe sleeve through the quick replacement part, the snow fence is replaced, operation is easy and convenient, and the service life of the ski pole is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of cross-country ski pole technology, and more specifically, it relates to a quick-change structure for cross-country ski pole tips and a cross-country ski pole. Background Technology

[0002] Currently, cross-country ski pole tips typically consist of a metal tip and a plastic ski guard, often in a single, integrated design. While the sharp metal tip can penetrate snow and ice to prevent slipping, it wears down over time. Since the ski guard is directly attached to the pole, once the metal tip wears down, the ski pole needs to be replaced, rendering it completely unusable. This not only wastes resources but also increases operating costs.

[0003] Although cross-country ski poles with replaceable tips have appeared on the market, they still have shortcomings. Due to the special nature of cross-country ski poles, their strength requirements are high. Whether for personal use or professional competition, safety and stability are paramount to prevent parts from detaching during skiing. Current ski pole technology uses a quick-release structure, which allows for rapid installation and removal of the ski poles, but this poses a safety hazard. The detachable structure is prone to detachment under high-intensity use, resulting in lower safety. If detachment occurs during use, the consequences can be severe. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a quick-change structure for cross-country ski poles and cross-country ski poles.

[0005] To solve the above-mentioned technical problems, this utility model first provides a quick-change structure for cross-country ski poles, including a tube sleeve and a snow rail connected to the tube sleeve. The end of the snow rail is connected to the tip of the ski pole. The snow rail is detachably connected to the tube sleeve and the tip. A first connecting part is connected to the tube sleeve. A second connecting part and a guide part are provided on the snow rail that are adapted to and connected to the first connecting part. The first connecting part passes through the guide part and connects to the second connecting part. A quick-change part is provided at the connection between the tube sleeve and the snow rail.

[0006] Preferably, the tube sleeve includes a tube sleeve body and a tube sleeve connecting end disposed at the end of the tube sleeve body, and the snow fence includes a snow fence sleeve and a snow fence flat tail. The tube sleeve body is connected to the snow fence sleeve, and the quick-change part is disposed at the junction of the tube sleeve connecting end and the snow fence sleeve.

[0007] Preferably, the guide part is a guide groove provided on the snow rail. The inner diameter of the guide groove is smaller than the outer diameter of the snow rail but larger than the inner diameter of the snow rail. The guide groove is provided along the axial direction of the snow rail. The second connecting part is provided at the lower end of the guide groove.

[0008] Preferably, the guide groove is located on the inner circumference of the snow rail, and the inner diameter of the guide groove is smaller than the outer diameter of the first connecting part. When the tube sleeve is inserted into the snow rail, the first connecting part passes through the guide groove and connects with the second connecting part.

[0009] Preferably, the number of guide grooves matches the number of the first connecting parts, and two guide grooves are provided opposite to each other on the inner circumference of the snow rail, with the upper end of the guide grooves connected to the quick-change part.

[0010] Preferably, the first connecting part is provided with a connecting ear, which is located on the outer periphery of the sleeve and is a protrusion structure extending radially outward along the sleeve; the second connecting part is provided with a connecting through hole, and the connecting ear is adapted to and snapped into the connecting through hole.

[0011] Preferably, a limiting protrusion is connected to the sleeve, the limiting protrusion is located on the outer periphery of the sleeve and is arranged along the axial direction of the sleeve, and a limiting groove is provided at the upper end of the snow rail to be adapted to and connected to the limiting protrusion. When the sleeve is connected to the snow rail, the limiting protrusion is inserted into the limiting groove.

[0012] Preferably, the lower end of the sleeve is provided with a positioning block, and the lower end of the inside of the snow rail is provided with a positioning groove that is adapted to and connected to the positioning block. The positioning block and the radial extension line where the first connection part is located are arranged at an angle to each other.

[0013] Preferably, the quick-change part includes a first notch provided on the sleeve and a second notch provided on the snow rail, the lower end of the first notch matches the upper end of the second notch, and the second notch is connected to the guide part.

[0014] Furthermore, this utility model also provides a cross-country ski pole, including a pole shaft, a pole tip, and a quick-change structure for the cross-country ski pole assembly pole tip, with the tube sleeve connected to the pole shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention features a ski rail and a tube sleeve, with the ski rail, tube sleeve, and pole tip being detachably connected. When the pole tip wears out, only the ski rail needs to be replaced, eliminating the need to replace the entire ski pole, thus reducing operating costs. Furthermore, the connection between the first and second connecting parts ensures a stable and safe connection between the tube sleeve and the ski rail. A guide part provides directional guidance for the connection between the tube sleeve and the ski rail, facilitating a convenient connection between the first and second connecting parts. When the ski rail needs to be replaced, a quick-change part separates the ski rail from the tube sleeve, making the replacement process simple and convenient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of the quick-change structure of this utility model;

[0019] Figure 2 This is an exploded view of the components of an embodiment of the quick-change structure of this utility model;

[0020] Figure 3 This is a structural schematic diagram of an embodiment of the tubular sleeve of this utility model;

[0021] Figure 4 This is a structural schematic diagram of an embodiment of the snow fence of this utility model;

[0022] Figure 5 This is a front view schematic diagram of an embodiment of the quick-change structure of this utility model;

[0023] Figure 6 This is a structural schematic diagram of an embodiment of the positioning block of this utility model;

[0024] Figure 7 This is an axial cross-sectional view of an embodiment of the snow fence of this utility model;

[0025] Figure 8 This utility model Figure 5 Sectional view of AA;

[0026] Figure 9 This is a schematic diagram of the connection state of the quick-change structure of this utility model.

[0027] Explanation of symbols in the diagram:

[0028] 1. Tube sleeve; 11. Tube sleeve body; 12. Tube sleeve connecting end; 13. Positioning block; 14. Limiting protrusion; 2. Snow rail; 21. Snow rail sleeve; 22. Snow rail flat tail; 23. Positioning groove; 24. Limiting groove; 3. Pole tip; 4. First connecting part; 41. Connecting lug; 5. Second connecting part; 51. Connecting through hole; 6. Guide part; 61. Guide groove; 7. Quick-change part; 71. First notch; 72. Second notch. Detailed Implementation

[0029] To make the technical problems, solutions, and beneficial effects of this application clearer, the following detailed description, in conjunction with the accompanying drawings and embodiments, provides a cross-country ski pole assembly tip quick-change structure and cross-country ski poles provided by this application. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application.

[0030] Please see Figure 1 , Figure 2 This utility model provides a quick-change structure for cross-country ski poles, including a tube sleeve 1 and a snow rail 2 connected to the tube sleeve 1. The end of the snow rail 2 is connected to the tip 3 of the ski pole. The snow rail 2 is detachably connected to the tube sleeve 1 and the tip 3. A first connecting part 4 is connected to the tube sleeve 1. The snow rail 2 is provided with a second connecting part 5 and a guide part 6 that are adapted to and connected to the first connecting part 4. The first connecting part 4 passes through the guide part 6 and connects to the second connecting part 5. A quick-change part 7 is provided at the connection between the tube sleeve 1 and the snow rail 2.

[0031] This utility model features a snow rail 2 and a tube sleeve 1. The snow rail 2 is detachably connected to the tube sleeve 1 and the pole tip 3. When the pole tip wears out, it is not necessary to replace the entire ski pole; only the snow rail needs to be replaced, thus reducing operating costs. Furthermore, the connection between the tube sleeve 1 and the snow rail 2 is achieved through the connection of the first connecting part 4 and the second connecting part 5, ensuring a stable connection with high safety. The guide part 6 provides directional guidance for the connection between the tube sleeve 1 and the snow rail 2, facilitating a convenient connection between the first connecting part 4 and the second connecting part 5. When the snow rail 2 needs to be replaced, the quick-change part 7 separates the snow rail 2 from the tube sleeve 1, completing the snow rail replacement, making the operation simple.

[0032] In this embodiment, as Figure 3 , Figure 4 As shown, the sleeve 1 includes a sleeve body 11 and a sleeve connection end 12 disposed at the end of the sleeve body 11. The snow fence 2 includes a snow fence sleeve 21 and a snow fence flat tail 22. The sleeve body 11 is connected to the snow fence sleeve 21. The quick-change part 7 is disposed at the junction of the sleeve connection end 12 and the snow fence sleeve 21.

[0033] Specifically, such as Figure 3 As shown, the sleeve 1 is a sleeve structure with an open upper end and a closed lower end. The sleeve connection end 12 is located at the upper end of the sleeve body 11. The sleeve connection end 12 is a hollow structure with a tapered outer surface. The cross-section of the sleeve connection end 12 is a circular structure. The upper outer diameter of the sleeve connection end 12 is smaller than its lower outer diameter. The sleeve 1 is connected to the snow fence 2 through the lower sleeve body 11. The upper part of the snow fence 2 is fitted on the outside of the sleeve body 11.

[0034] In this embodiment, as Figure 4As shown, the snow rail 2 is installed on the upper part of the ski pole tip. By installing the snow rail on the upper part of the tip, the ski pole can be prevented from being inserted too deeply into the snow, thereby avoiding accidents such as being pulled down and falling during skiing. The snow rail flat tail 22 is a horizontally set flat snow support structure. The snow rail flat tail 22 is fixedly installed on the side of the snow rail sleeve 21. The snow rail 2 is connected to the sleeve body 11 of the sleeve 1 through the snow rail sleeve 21. The upper and lower ends of the snow rail sleeve 21 are provided with openings, but the upper and lower openings are not connected. The upper part of the snow rail sleeve 21 is connected to the sleeve 1, and the lower part of the snow rail sleeve 21 is connected to the tip 3 of the ski pole.

[0035] Furthermore, to ensure structural safety and connection stability, the sleeve 1 is a one-piece manufactured structure, and the specific shape and size design of the snow rail flat tail 22 can be adjusted according to actual usage requirements.

[0036] In this embodiment, the first connecting part 4 is provided with a connecting ear 41, which is disposed on the outer periphery of the sleeve 1. The connecting ear 41 is a protrusion structure that extends radially outward along the sleeve 1. The second connecting part 5 is provided with a connecting through hole 51, and the connecting ear 41 is adapted to and snapped into the connecting through hole 51.

[0037] Specifically, such as Figure 5 As shown, the number of connecting through holes 51 on the snow fence 2 matches the number of connecting lugs 41 on the sleeve 1, and the shape of the connecting through holes 51 is adapted to the connecting lugs 41. There are two connecting lugs 41, which are respectively arranged opposite each other on the outer periphery of the sleeve body 11. The two connecting lugs 41 are arranged in the same radial direction of the sleeve body 11. The inner periphery of the snow fence sleeve 21 is provided with two connecting through holes 51 corresponding to the connecting lugs 41. The two connecting through holes 51 are arranged on the periphery of the snow fence sleeve 21 in the same radial direction. When the sleeve 1 is connected to the snow fence 2, the connecting lugs 41 on the sleeve 1 are inserted into the connecting through holes 51 of the snow fence 2.

[0038] In this embodiment, the connecting ear 41 is a hook ear structure with a bevel and a trapezoidal cross-section. The connecting through hole 51 is a polygonal structure that is adapted to the connecting ear 41, and the depth of the connecting through hole 51 is adapted to the outer dimension of the connecting ear 41, so as to ensure a stable connection between the connecting ear 41 and the connecting through hole 51.

[0039] Furthermore, such as Figure 4 As shown, in this embodiment, the guide part 6 is a guide groove 61 provided on the snow railing. The guide groove 61 is provided along the axial direction of the snow railing 2, and the second connecting part 5 is provided at the lower end of the guide groove 61.

[0040] Specifically, the guide groove 61 is set on the inner circumference of the ski fence sleeve 21. The guide groove 61 is a track groove structure set along the axial direction of the ski fence sleeve 21. The inner diameter of the guide groove 61 is smaller than the outer diameter of the ski fence 2 but larger than the inner diameter of the ski fence 2. The inner diameter of the guide groove 61 is smaller than the outer diameter of the connecting lug 41. The connecting lug 41 of the sleeve 1 is press-fitted with the guide groove 61. When the sleeve 1 is inserted into the ski fence sleeve 21 of the ski fence 2, the connecting lug 41 is press-fitted from the top and inserted into the guide groove 61 and engaged with the connecting through hole 51. This ensures that the sleeve 1 can be locked after the ski fence sleeve 21 deforms and rebounds. The engagement is stable and will not easily fall off, ensuring the safety of ski pole use.

[0041] Furthermore, the number of guide grooves 61 matches the number of connecting lugs 41. Two guide grooves 61 are provided opposite to each other on the inner circumference of the snow rail 2. The upper end of the guide groove 61 is connected to the quick-change part 7, and the lower end of the guide groove 61 is connected to the connecting through hole 51.

[0042] Furthermore, such as Figure 6 , Figure 7 As shown in the preferred embodiment of this utility model, the lower end of the sleeve 1 is provided with a positioning block 13, and the lower end of the inside of the snow rail 2 is provided with a positioning groove 23 that is adapted to and connected to the positioning block 13. The positioning block 13 and the radial extension line where the first connecting part 4 is located are arranged at an angle to each other.

[0043] Specifically, the positioning block 13 is located at the lower end of the sleeve body 11. The positioning block 13 is a horizontally arranged, straight-line protrusion structure. The positioning groove 23 on the snow fence 2 is adapted to the shape of the positioning block 13, and the positioning groove 23 is a straight-line groove structure. When the sleeve body 11 is inserted into the snow fence sleeve 21, the positioning block 13 engages with the positioning groove 23 at the lower end of the snow fence sleeve 21, which can restrict the circumferential rotation of the sleeve 1, ensure the correct safety orientation, and achieve rapid positioning connection.

[0044] Furthermore, such as Figure 5 As shown, in the radial direction, the positioning block 13 is set perpendicular to the radial line of the two connecting lugs 41. By interleaving with the connecting lugs 41, a stable connection between the sleeve 1 and the snow rail 2 and an excellent circumferential limiting effect are ensured.

[0045] Furthermore, such as Figure 6 As shown, a limiting protrusion 14 is connected to the sleeve 1. The limiting protrusion 14 is located on the outer periphery of the sleeve 1 and is arranged along the axial direction of the sleeve 1. The upper end of the snow rail 2 is provided with a limiting groove 24 that is adapted to and connected to the limiting protrusion 14. When the sleeve 1 is connected to the snow rail 2, the limiting protrusion 14 is inserted into the limiting groove 24.

[0046] Specifically, the limiting protrusion 14 is a trapezoidal protrusion structure, and it is set on the main body 11 of the sleeve 1. The upper end face of the limiting protrusion 14 is connected to the lower end face of the sleeve connection end 12, and the outer periphery of the limiting protrusion 14 is flush with the outer periphery of the sleeve connection end 12. The limiting groove 24 is set on the upper outer periphery of the snow fence sleeve 21, and it is located on the axial upper end of the side of the snow fence sleeve 21 where the snow fence flat tail 22 is set. The shape of the limiting groove 24 is adapted to the limiting protrusion 14. The limiting groove 24 is an inverted trapezoidal open groove structure. Through the quick matching connection between the limiting protrusion 14 and the limiting groove 24, it can not only be quickly oriented but also limited. When the sleeve 1 is connected to the snow rail 2, the connecting ear 41 moves down along the guide groove 61 and connects with the connecting through hole 51. The positioning block 13 at the lower end of the sleeve 1 matches the positioning groove 23, while the limiting protrusion 14 at the upper end is inserted into the corresponding limiting groove 24 to circumferentially limit the sleeve 1, restrict the rotation of the sleeve 1, and ensure quick and accurate installation.

[0047] Furthermore, in this embodiment, as Figure 3 , Figure 4 As shown, the quick-change part 7 includes a first notch 71 provided on the sleeve 1 and a second notch 72 provided on the snow rail 2. The lower end of the first notch 71 matches the upper end of the second notch 72, and the second notch 72 is connected to the guide part 6.

[0048] Specifically, the first notch 71 is located on the outer periphery of the tube sleeve connection end 12 at the upper part of the tube sleeve 1. A second notch 72 is located at a corresponding position on the upper end face of the snow fence sleeve 21. The first notch 71 and the second notch 72 are structurally matched. When the tube sleeve 1 is connected to the snow fence 2, the lower end of the first notch 71 connects with the upper end of the second notch 72, forming a square notch structure, allowing the insertion of a flathead screwdriver. When the snow fence 2 is worn and needs replacement, the weak outer wall of the snow fence guide groove 61 can be broken by inserting a screwdriver, unlocking the snow fence sleeve 21 from locking the connecting lugs 41 on both sides of the tube sleeve 1, facilitating the removal of the worn snow fence and replacement with a new one.

[0049] Furthermore, in a preferred embodiment of the present invention, the sleeve 1 is provided with two first notches 71, and the upper end of the snow fence sleeve 21 is provided with two opposing second notches 72. The two first notches 71 and the second notches 72 are respectively arranged opposite each other along the same radial direction, and the second notches 72 are provided at the upper end of the guide groove 61.

[0050] Furthermore, this utility model also provides a cross-country ski pole, including a pole shaft, a pole tip 3, and the aforementioned cross-country ski pole assembly pole tip quick-change structure, with a sleeve 1 connected to the pole shaft.

[0051] Specifically, the upper end of the pole has a handle, which is the part that the skier holds and operates; the pole tip 3 is the lower part of the ski pole, which is inserted into the mounting slot at the lower end of the snow rail 2. The pole tip 3 is used to insert into the snow to provide support and thrust.

[0052] In this embodiment, the snow railing 2 and its upper and lower end connecting structures are combined and detachable structures. The snow railing 2 is used to connect the pole and the pole tip. The pole is glued to the sleeve 1, and the pole tip 3 is a metal structure and the pole tip is firmly inserted into the lower end of the snow railing.

[0053] This utility model can meet the usage needs of poles with different thicknesses and tapers, and achieves modular design by replacing tube sleeves with different inner diameters and snow rails with different shapes.

[0054] Specifically, by replacing the tube sleeve 1 with different inner diameters, it can adapt to the usage needs of poles with different thicknesses and tapers. Moreover, by ensuring that the inner diameter of the ski fence sleeve 21 is uniform, the same tube sleeve 1 can be adapted to ski fences 2 with different shapes. For ski poles with different outer diameters and different tapers, only the tube sleeve 1 with the corresponding inner diameter needs to be replaced. There is no need to make a separate mold for the ski fence, which not only saves costs but also enables modular design to meet the personalized needs of users. By replacing the ski fences with different shapes, different appearances bring different user experiences.

[0055] The working principle of this utility model is as follows:

[0056] like Figure 8 , Figure 9 As shown, when installing cross-country ski poles, firstly, the tube sleeve 1 is glued to the lower end of the ski pole shaft. Then, the snow rail sleeve 21 of the snow rail 2 is fitted onto the outside of the tube sleeve body 11. The guide groove 61 inside the snow rail sleeve 21 corresponds to the connecting lug 41 of the tube sleeve 1. The connecting lug 41 of the tube sleeve 1 is inserted into the guide groove 61 and moved downwards. The connecting lugs 41 on both sides of the tube sleeve 1 pass through the guide groove 61 and connect to the connecting through hole 51 on the snow rail 2. The connecting lugs 41 are hooked outwards at the connecting through hole 51 to prevent the tube sleeve 1 from detaching from the snow rail sleeve 21. At the same time, the positioning block 13 at the lower end of the tube sleeve 1 matches the positioning groove 23, and the limiting protrusion 14 at the upper end is engaged in the corresponding limiting groove 24 to restrict the rotation of the tube sleeve 1 and ensure that the tube sleeve 1 is installed in the correct direction on the pole shaft. Finally, the pole tip 3 is inserted into the installation groove at the lower end of the snow rail 2 to complete the installation of the cross-country ski poles.

[0057] When the pole tip 3 and the snow rail 2 are worn and need to be replaced, use a flathead screwdriver to insert into the notch of the quick-change part at the upper end of the snow rail sleeve 21, pry open the weak outer wall of the guide groove 61 of the snow rail, unlock the locking of the snow rail sleeve 21 to the connecting lugs 41 on both sides of the sleeve 1, remove the worn snow rail, and then, as needed, force the deformation to fit a new snow rail.

[0058] This invention provides a detachable, easily replaceable, and extended-life cross-country ski pole combination with a quick-change tip structure, solving the problem that existing cross-country ski poles require the entire pole to be discarded after the tip wears down. This invention features a snow rail and a tube sleeve, which are detachably connected to the snow rail, tube sleeve, and tip. When the tip wears down, only the snow rail needs to be replaced, reducing operating costs. Furthermore, to meet the high-intensity and high-safety requirements of cross-country ski poles, this invention employs a forceful disassembly method. Once the snow rail is worn down, it is discarded without affecting the overall pole shaft; only the snow rail needs replacement. The tip is not a short-term accessory and requires frequent replacement, only needing replacement after wear. By using a robust and stable snow rail structure, the ski pole will not easily detach during use, greatly improving safety and eliminating the safety hazards associated with manual disassembly, thus preventing accidents.

[0059] This invention achieves a stable and safe connection between the tube sleeve and the snow pole by connecting the connecting lug and the connecting through hole. A guide section provides directional guidance for the connection, facilitating easy connection between the connecting lug and the connecting through hole. When the snow pole needs to be replaced, a quick-change mechanism separates the snow pole from the tube sleeve for easy replacement. Furthermore, by changing the tube sleeve to different inner diameters, it can accommodate poles of varying taper, and the same tube sleeve can be used with snow poles of different shapes, achieving a modular design to meet individual user needs.

[0060] In the description of this utility model, it should be understood that terms such as “length”, “width”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, and “outer” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0062] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A quick-change tip structure for cross-country ski poles, comprising a tube sleeve and a snow rail connected to the tube sleeve, the end of the snow rail being connected to the tip of a ski pole, the snow rail being detachably connected to the tube sleeve and the tip, characterized in that, The pipe sleeve is connected with a first connecting part, the snow fence is provided with a second connecting part and a guide part which are adapted to connect with the first connecting part, the first connecting part passes through the guide part and connects with the second connecting part, and the pipe sleeve is provided with a quick-change part at the connection position with the snow fence.

2. A cross-country ski pole combination tip quick-change structure according to claim 1, characterized in that, The pipe sleeve comprises a pipe sleeve main body and a pipe sleeve connecting end arranged at the end of the pipe sleeve main body, the snow fence comprises a snow fence sleeve and a snow fence flat tail, the pipe sleeve main body is connected with the snow fence sleeve, and the quick-change part is arranged at the joint of the pipe sleeve connecting end and the snow fence sleeve.

3. A cross-country ski pole combination tip quick-change structure according to claim 1, characterized in that, The guide part is a guide groove arranged on the snow fence, the inner diameter of the guide groove is smaller than the outer diameter of the snow fence but larger than the inner diameter of the snow fence, the guide groove is arranged along the axial direction of the snow fence, and the second connecting part is arranged at the lower end of the guide groove.

4. A cross-country ski pole combination tip quick-change structure according to claim 3, characterized in that, The guide groove is arranged on the inner circumferential side of the snow fence, the inner diameter of the guide groove is smaller than the outer diameter of the first connecting part, and when the pipe sleeve is inserted into the snow fence, the first connecting part passes through the guide groove and connects with the second connecting part.

5. A cross-country ski pole combination tip quick change structure according to claim 3, characterized in that, The guide groove is arranged in a number matched with the first connecting part, two guide grooves are arranged on the inner circumferential side of the snow fence in opposition, and the upper end of the guide groove is connected with the quick-change part.

6. A cross-country ski pole combination tip quick change structure according to claim 1, characterized in that, The first connecting part is provided with a connecting lug seat, the connecting lug seat is arranged on the outer circumferential side of the pipe sleeve, the connecting lug seat is a protruding block structure extending radially outwardly along the pipe sleeve, the second connecting part is provided with a connecting through hole, and the connecting lug seat is adapted to be clamped with the connecting through hole.

7. A cross-country ski pole combination tip quick change structure according to claim 1, characterized in that, The pipe sleeve is connected with a limiting protrusion, the limiting protrusion is arranged on the outer circumferential side of the pipe sleeve and along the axial direction of the pipe sleeve, the upper end of the snow fence is provided with a limiting groove adapted to connect with the limiting protrusion, and when the pipe sleeve is connected with the snow fence, the limiting protrusion is inserted into the limiting groove.

8. A cross-country ski pole combination tip quick-change structure according to claim 1, characterized in that, The lower end of the pipe sleeve is provided with a positioning block, the inner lower end of the snow fence is provided with a positioning groove adapted to connect with the positioning block, and the positioning block is arranged in an angle staggered with the radial extension line where the first connecting part is located.

9. A cross-country ski pole combination tip quick-change structure according to any one of claims 1-8, characterized in that, The quick-change part comprises a first notch arranged on the pipe sleeve and a second notch arranged on the snow fence, the lower end of the first notch is matched with the upper end of the second notch, and the second notch is connected with the guide part.

10. A cross-country ski comprising a shaft, a ski tip, characterized in that The cross-country ski pole combination pole tip quick-change structure also comprises the pipe sleeve and the pole shaft connected with the pipe sleeve.

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