An external locking structure for telescopic poles and trekking poles

Abstract

The application discloses an outer locking structure suitable for a telescopic rod and a hiking stick, wherein the telescopic rod comprises a telescopic outer rod and a telescopic inner rod, the outer locking structure comprises a locking piece, an operating piece and an inner bushing, the locking piece is arranged on the telescopic outer rod, the operating piece is arranged on the locking piece, the inner bushing is arranged on the inner side of the locking piece and is linked with the locking piece, and the operating piece can be operated to drive the locking piece to drive the inner bushing to clamp or release the telescopic inner rod. The outer locking structure adopts the locking mode of clamping the telescopic inner rod by the inner bushing, thereby avoiding the abrasion or scratch between the telescopic outer rod and the telescopic inner rod due to the locking cooperation on the basis of not increasing the axial size of the outer locking structure, and guaranteeing the aesthetic degree of the telescopic outer rod and the telescopic inner rod.

Description

Technical Field

[0001] This application relates to the field of outdoor product technology, specifically to an external locking structure for telescopic poles and trekking poles. Background Technology

[0002] An external locking mechanism is a common mechanical locking device primarily used to lock or release an adjustable telescopic rod that consists of interlocking inner and outer rods. It allows for flexible length adjustment to suit different needs and locks the rod in a designated position. Existing common external locking mechanisms mainly fall into two categories.

[0003] The first type involves an external locking structure directly fitted onto the outer rod. The locking operation causes elastic deformation of the inner wall of the outer rod, tightly pressing it against the outer wall of the inner rod, achieving locking through friction. This method is simple in structure and has a high locking force. However, during locking and unlocking, there is compression and friction between the inner and outer walls of the outer rod, which can easily lead to wear, scratches, and even wear grooves on the inner and outer surfaces of both the outer and inner rods. This affects aesthetics and reduces structural integrity and long-term reliability.

[0004] The second type is an improvement designed to alleviate the aforementioned wear problem. This type of external locking structure adds an elastic connecting sleeve between the outer rod and the lock body. One end of the connecting sleeve is fixed to the outer rod, and the other end of the connecting sleeve is squeezed and deformed by the external locking structure to clamp and lock the inner rod. Due to the buffering effect of the elastic connecting sleeve, this type of external locking structure reduces the direct hard scratching of the inner rod surface to a certain extent. However, the addition of the connecting sleeve increases the axial dimension of the external locking structure, increasing the volume of the external locking structure and making it bulky and unsightly. Utility Model Content

[0005] One objective of this application is to provide a simple and compact external locking structure suitable for telescopic rods, which is suitable for preventing or reducing scratches on the outer surface of the inner rod.

[0006] Another objective of this application is to provide a hiking stick.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows: an external locking structure suitable for telescopic rods, wherein the telescopic rod includes a telescopic outer rod and a telescopic inner rod, the external locking structure includes a locking member and an operating member, the locking member is disposed on the telescopic outer rod, the operating member is disposed on the locking member, the external locking structure further includes an inner bushing, the inner bushing is disposed on the inner side of the locking member, and the inner bushing is linked with the locking member, the operating member is adapted to drive the locking member to drive the inner bushing to clamp and lock or release and unlock the telescopic inner rod.

[0008] As a preferred embodiment, the inner liner is made of a soft, elastic material.

[0009] As another preferred embodiment, the inner sleeve is provided with at least two locking parts, and the telescopic outer rod is provided with a locking opening adapted to the locking parts, and the position of each locking opening corresponds to the position of each locking part. Thus, when the locking member drives the inner sleeve to clamp and lock the telescopic inner rod, the locking part is adapted to pass through the locking opening and abut against the outer wall of the telescopic inner rod.

[0010] Further preferably, the inner diameter of the locking part is smaller than the inner diameter of the inner bushing.

[0011] Furthermore, the inner bushing engages with the locking member through at least one set of boss-groove structures to restrict the movement of the inner bushing relative to the locking member; the inner bushing engages with the telescopic outer rod through at least one set of boss-groove structures to restrict the movement of the inner bushing relative to the telescopic outer rod.

[0012] Furthermore, the inner sleeve is provided with a first boss, and the locking member is provided with a first groove. The first boss is adapted to cooperate with the first groove to restrict the movement of the inner sleeve relative to the locking member.

[0013] Furthermore, the first boss includes a first platform and a second platform, the first platform is located outside the second platform, and the size of the first platform is larger than the size of the second platform. The first groove includes a first groove and a second groove, the first groove is located outside the second groove, and the size of the first groove is larger than the size of the second groove. The first platform is adapted to cooperate with the first groove, and the second platform is adapted to cooperate with the second groove.

[0014] Furthermore, the inner sleeve is provided with at least one second groove, and the locking member is provided with at least one second boss, the second boss being adapted to cooperate with the second groove to restrict the movement of the inner sleeve relative to the locking member.

[0015] Furthermore, the inner bushing is provided with a third boss, which is circumferentially arranged around the bottom end of the inner bushing. The third boss is adapted to cooperate with the end of the telescopic outer rod to restrict the movement of the inner bushing relative to the telescopic outer rod.

[0016] This application also provides a trekking pole, including a telescopic outer pole, a telescopic inner pole, and the aforementioned external locking structure, wherein the telescopic outer pole and the telescopic inner pole are telescopically connected, and the external locking structure is disposed at the junction of the telescopic outer pole and the telescopic inner pole.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: (1) The external locking structure of this application uses a soft inner sleeve to clamp and lock the hard telescopic inner rod, instead of the hard telescopic outer rod clamping and locking the hard telescopic inner rod. This makes it possible to avoid the hard telescopic outer rod and the hard telescopic inner rod forming a direct locking relationship, which helps to avoid the hard telescopic outer rod and the hard telescopic inner rod forming a direct locking relationship, causing the telescopic outer rod and the telescopic inner rod to be worn or scratched, and improving the aesthetics of the telescopic outer rod and the telescopic inner rod. (2) The external locking structure of this application uses a soft inner sleeve to clamp and lock the hard telescopic inner rod, instead of the elastic connecting sleeve to clamp and lock the hard telescopic inner rod. The soft inner sleeve has a simple structure and cooperates with the locking part and the telescopic outer rod through the boss-groove structure, which helps to avoid the external locking structure from being too bulky and unsightly due to the excessive axial dimension of the external locking structure. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the telescopic outer rod, telescopic inner rod, and outer locking structure in this application.

[0019] Figure 2 This is an exploded view of the telescopic outer rod, telescopic inner rod, and outer locking structure in this application.

[0020] Figure 3 This is a three-dimensional schematic diagram of the telescopic outer rod in this application.

[0021] Figure 4 This is a three-dimensional schematic diagram of the telescopic outer rod from another perspective in this application.

[0022] Figure 5 This is a three-dimensional schematic diagram of the locking component in this application.

[0023] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0024] Figure 7 This is a three-dimensional schematic diagram of the inner liner in this application.

[0025] Figure 8 This is a three-dimensional schematic diagram of the inner liner from another perspective in this application.

[0026] Figure 9 This is a cross-sectional schematic diagram of the locking element and inner bushing in this application.

[0027] In the diagram: 100, telescopic outer rod; 110, first locking opening; 120, second locking opening; 200, telescopic inner rod; 300, locking element; 310, first end; 320, second end; 330, tension adjustment element; 340, first groove; 341, first groove; 342, second groove; 350, second boss; 400, operating element; 500, inner bushing; 510, first locking part; 520, second locking part; 530, first boss; 531, first platform; 532, second platform; 540, second groove; 550, third boss. Detailed Implementation

[0028] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and should not be construed as limiting the specific protection scope of this application.

[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0032] This application provides a hiking stick, which includes a telescopic outer rod 100, a telescopic inner rod 200, and an external locking structure. The telescopic outer rod 100 and the telescopic inner rod 200 are telescopically connected. The external locking structure is disposed at the junction of the telescopic outer rod 100 and the telescopic inner rod 200, and the external locking structure is suitable for locking or unlocking the telescopic outer rod 100 and the telescopic inner rod 200.

[0033] Furthermore, such as Figure 1-2As shown, the external locking structure includes a locking member 300, an operating member 400, and an inner sleeve 500. The locking member 300 is disposed on the telescopic outer rod 100, the operating member 400 is disposed on the locking member 300, and the inner sleeve 500 is disposed on the inner side of the locking member 300, and the inner sleeve 500 is linked with the locking member 300. The operating member 400 can be operated to drive the locking member 300 to move the inner sleeve 500 to clamp, lock, or release the telescopic inner rod 200. The inner sleeve 500 is made of a soft elastic material, such as plastic or silicone.

[0034] The external locking structure provided in this embodiment uses a soft inner sleeve 500 to clamp and lock the rigid telescopic inner rod 200, avoiding a direct locking relationship between the rigid telescopic outer rod 100 and the rigid telescopic inner rod 200. This helps protect the telescopic outer rod 100 and the telescopic inner rod 200 from wear or scratches, improving the aesthetics of the telescopic outer rod 100, telescopic inner rod 200, and the external locking structure after long-term use. Furthermore, the inner sleeve 500 has a simple structure; it engages with the locking member 300 and the telescopic outer rod 100 through a boss-groove structure, preventing an increase in the axial dimension of the external locking structure and thus avoiding a bulky and unsightly appearance due to increased size.

[0035] Furthermore, the inner sleeve 500 is provided with at least two locking parts, the inner diameter of which is smaller than the inner diameter of the inner sleeve 500. The telescopic outer rod 100 is provided with a locking opening adapted to the locking part, and the position of each locking opening corresponds to the position of each locking part. Thus, when the locking member 300 drives the inner sleeve 500 to clamp and lock the telescopic inner rod 200, the locking part is adapted to pass through the locking opening and abut against the outer wall of the telescopic inner rod 200 to clamp and lock the telescopic inner rod 200.

[0036] In a specific embodiment, such as Figure 3-9As shown, the locking member 300 is implemented as a locking clamp, and the locking member 300 has a C-shaped structure. The two ends of the locking member 300 are respectively provided with a first end 310 and a second end 320. The first end 310 and the second end 320 are arranged opposite each other and form a locking gap between them. A tension adjustment member 330 is provided on the first end 310 and the second end 320, which is suitable for adjusting the clamping inner diameter of the locking member 300 in the locked state. The inner bushing 500 also has a C-shaped structure, and two first locking parts 510 are respectively provided at both ends of the inner bushing 500. A second locking part 520 is provided in the middle of the inner sleeve 500. The inner diameters of the first locking part 510 and the second locking part 520 are both smaller than the inner diameter of the inner sleeve 500. The telescopic outer rod 100 is provided with a first locking opening 110 corresponding to the two first locking parts 510 and a second locking opening 120 corresponding to the one second locking part 520. The two first locking parts 510 and the one second locking part 520 are arranged radially opposite to each other, and the first locking opening 110 and the second locking opening 120 are arranged radially opposite to each other. The operating member 400 is implemented as a locking buckle, and the locking buckle has an arc-shaped structure. The locking member 300 is sleeved on the end of the telescopic outer rod 100, the inner sleeve 500 is provided on the inner side of the locking member 300, and the operating member 400 is provided on the end of the tension adjustment member 330. The operating member 400 can rotate between a locked position and an unlocked position to switch the locking member 300 between the locked state and the unlocked state.

[0037] Specifically, when the operating member 400 is rotated to the locked position, the operating member 400 pushes the first end 310 and the second end 320 together, and the locking member 300 elastically deforms, causing its clamping inner diameter to shrink. Then, the locking member 300 drives the first locking part 510 and the second locking part 520 on the inner bushing 500 to abut against the outer wall of the telescopic inner rod 200 to clamp and lock the telescopic inner rod 200. When the operating member 400 is rotated to the unlocked position, the operating member 400 pushes the first end 310 and the second end 320 away from each other. The locking member 300 elastically recovers, causing its clamping inner diameter to increase. Then, the locking member 300 drives the first locking part 510 and the second locking part 520 on the inner bushing 500 to separate from the outer wall of the telescopic inner rod 200 to release and unlock the telescopic inner rod 200.

[0038] Furthermore, the inner bushing 500 engages with the locking member 300 through at least one set of boss-groove structures to restrict the movement of the inner bushing 500 relative to the locking member 300; the inner bushing 500 engages with the telescopic outer rod 100 through at least one set of boss-groove structures to restrict the movement of the inner bushing 500 relative to the telescopic outer rod 100.

[0039] like Figure 5-9As shown, the inner sleeve 500 is provided with a first boss 530, and the locking member 300 is provided with a first groove 340. The first boss 530 is adapted to cooperate with the first groove 340 to restrict the movement of the inner sleeve 500 relative to the locking member 300. The first boss 530 includes a first platform 531 and a second platform 532. Both the first platform 531 and the second platform 532 are cylindrical, and the outer diameter of the first platform 531 is larger than the outer diameter of the second platform 532. The first groove 340 includes a first groove 341 and a second groove 342. Both the first groove 341 and the second groove 342 are cylindrical, and the inner diameter of the first groove 341 is larger than the inner diameter of the second groove 342. When the first boss 530 and the first groove 340 are engaged, the first platform 531 is embedded in the first groove 341, and the second platform 532 is embedded in the second groove 342, thereby restricting the inner bushing 500 from moving axially or rotating circumferentially relative to the locking member 300.

[0040] like Figure 5-9 As shown, the inner bushing 500 is provided with two second grooves 540, which are arranged radially opposite to each other. The locking member 300 is provided with two second bosses 350, which are arranged radially opposite to each other. The second bosses 350 are adapted to cooperate with the second grooves 540 to restrict the inner bushing 500 from moving axially or rotating circumferentially relative to the locking member 300.

[0041] like Figure 5-9 As shown, the inner bushing 500 is provided with a third boss 550, which is circumferentially arranged around the bottom end of the inner bushing 500. The third boss 550 is adapted to abut against the end of the telescopic outer rod 100 to restrict the axial movement of the inner bushing 500 relative to the telescopic outer rod 100.

[0042] It is worth mentioning that the size of the second locking opening 120 is adapted to the size of the second locking part 520. Therefore, in addition to being able to pass through the second locking opening 120 and abut against the outer wall of the telescopic inner rod 200, the second locking part 520 can also cooperate with the second locking opening 120 to restrict the axial movement or axial rotation of the inner bushing 500 relative to the telescopic outer rod 100.

[0043] The external locking structure provided in this application embodiment uses a soft inner bushing 500 to clamp and lock a rigid telescopic inner rod 200. The soft inner bushing 500 has a simple structure and cooperates with the locking member 300 and the telescopic outer rod 100 through a boss-groove structure, which helps to avoid the axial dimension of the external locking structure being too large, thus preventing the external locking structure from becoming bulky and unsightly.

[0044] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An external locking structure suitable for telescopic poles, wherein, The telescopic rod includes a telescopic outer rod and a telescopic inner rod. The outer locking structure includes a locking member and an operating member. The locking member is disposed on the telescopic outer rod, and the operating member is disposed on the locking member. The outer locking structure further includes an inner bushing. The inner bushing is disposed inside the locking member and is linked with the locking member. The operating member is adapted to drive the locking member to clamp, lock, or release the inner bushing to unlock the telescopic inner rod.

2. The external locking structure as described in claim 1, characterized in that, The inner liner is selected to be made of a soft, elastic material.

3. The external locking structure as described in claim 2, characterized in that, The inner sleeve is provided with at least two locking parts, and the telescopic outer rod is provided with a locking opening adapted to the locking parts. The position of each locking opening corresponds to the position of each locking part. Thus, when the locking member drives the inner sleeve to clamp and lock the telescopic inner rod, the locking part is adapted to pass through the locking opening and abut against the outer wall of the telescopic inner rod.

4. The external locking structure as described in claim 3, characterized in that, The inner diameter of the locking part is smaller than the inner diameter of the inner liner.

5. The external locking structure as described in claim 2, characterized in that, The inner bushing engages with the locking member through at least one set of boss-groove structures to restrict the movement of the inner bushing relative to the locking member; the inner bushing engages with the telescopic outer rod through at least one set of boss-groove structures to restrict the movement of the inner bushing relative to the telescopic outer rod.

6. The external locking structure as described in claim 5, characterized in that, The inner sleeve is provided with a first boss, and the locking member is provided with a first groove. The first boss is adapted to cooperate with the first groove to restrict the movement of the inner sleeve relative to the locking member.

7. The external locking structure as described in claim 6, characterized in that, The first protrusion includes a first platform and a second platform. The first platform is located outside the second platform, and the size of the first platform is larger than the size of the second platform. The first groove includes a first groove and a second groove. The first groove is located outside the second groove, and the size of the first groove is larger than the size of the second groove. The first platform is adapted to mate with the first groove, and the second platform is adapted to mate with the second groove.

8. The external locking structure as described in claim 5, characterized in that, The inner liner is provided with at least one second groove, and the locking member is provided with at least one second boss. The second boss is adapted to cooperate with the second groove to restrict the movement of the inner liner relative to the locking member.

9. The external locking structure as described in claim 5, characterized in that, The inner bushing is provided with a third boss, which is circumferentially arranged around the bottom end of the inner bushing. The third boss is adapted to cooperate with the end of the telescopic outer rod to restrict the movement of the inner bushing relative to the telescopic outer rod.

10. A trekking pole, characterized in that, It includes a telescopic outer rod, a telescopic inner rod, and an external locking structure as described in any one of claims 1-9, wherein the telescopic outer rod and the telescopic inner rod are telescopically connected, and the external locking structure is disposed at the junction of the telescopic outer rod and the telescopic inner rod.

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