Internal lock structure for locking alpenstock

Abstract

The utility model discloses an internal lock structure for locking an alpenstock, and relates to the technical field of alpenstocks. Comprising an aluminum rod and a plastic expansion piece, the aluminum rod is sleeved with the plastic expansion piece, a screw is arranged at one end of the aluminum rod through a conical rod, the plastic expansion piece comprises two semicircular hoops which are combined into a whole circle, a threaded groove connected with the screw in a threaded and sleeved mode is jointly formed in the two semicircular hoops, and an expansion groove is formed in one end of each semicircular hoop. And a locking conical surface attached to the conical rod is arranged in one end of the semicircular hoop. The plastic expansion piece and the aluminum rod are connected through a threaded groove and a screw rod structure which are matched with each other, the plastic expansion piece can move up and down, the plastic expansion piece is designed to be opened in two halves, the plastic expansion piece and the aluminum rod can be rapidly assembled, positioning is achieved through the connecting rod and the connecting groove, no accessory is needed for preventing disengagement, and the two semicircular hoops are connected together through the connecting piece. Pairing is not needed during assembly, operation is more convenient, and the use requirement of a user is met.

Description

Technical Field

[0001] The utility model relates to the technical field of trekking poles, in particular to an inner locking structure for locking trekking poles. Background Art

[0002] Trekking poles, as the name suggests, are auxiliary equipment used in mountaineering. Trekking poles can bring many benefits to outdoor mountaineering activities, such as improving walking stability and reducing the burden on the legs.

[0003] The upper and lower sections of the trekking pole need to be connected through a plastic expansion piece. The expansion principle of plastic is used to quickly connect and lock the upper and lower sections. However, the existing expansion piece needs to be prevented from falling off by accessories. The structure is complicated, not conducive to production and processing, and is also troublesome to use. It can no longer meet the needs of users. Utility Model Content

[0004] The utility model provides an inner locking structure for locking a trekking pole, so as to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an internal locking structure for locking a trekking pole, comprising an aluminum rod and a plastic expansion piece, the plastic expansion piece being sleeved on the aluminum rod, a screw being provided at one end of the aluminum rod through a tapered rod, the plastic expansion piece comprising two semicircular hoops combined into a full circle, a threaded groove being commonly provided inside the two semicircular hoops for threaded engagement with the screw, an expansion groove being provided at one end of the semicircular hoop, and a locking conical surface being provided inside one end of the semicircular hoop for fitting with the tapered rod.

[0006] Furthermore, the plastic expansion piece is conical in shape.

[0007] Furthermore, a connecting piece is commonly provided at one end of the two semicircular hoops.

[0008] Furthermore, a plurality of positioning protrusions are provided on the outside of the semicircular clamp.

[0009] Furthermore, the positioning protrusion is in one of the following shapes: square, strip, and circle.

[0010] Furthermore, a plurality of connecting rods and a plurality of connecting grooves are respectively provided at the connection points of the two semicircular hoops, and one end of the connecting rod is inserted into the interior of the connecting groove.

[0011] Furthermore, a docking rod is provided at one end of the screw away from the tapered rod, and the end of the docking rod away from the screw penetrates to the outside of the plastic expansion piece.

[0012] Compared with the prior art, the present invention provides an inner locking structure for locking a trekking pole, which has the following beneficial effects:

[0013] The inner locking structure for locking the trekking pole uses a matching threaded groove and screw structure to connect the plastic expansion piece and the aluminum rod, which can move up and down. The plastic expansion piece adopts a two-half-open design and can be quickly assembled with the aluminum rod. It is positioned by the connecting rod and the connecting groove and does not require any accessories to prevent it from falling off. The two semicircular clamps are connected together by a connecting piece and do not need to be paired during assembly, which makes operation more convenient and meets user needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the aluminum rod and the plastic expansion member in the utility model in a separated state;

[0016] Figure 3 This is a schematic diagram of the semicircular hoop structure of the present utility model.

[0017] In the figure: 1. Aluminum rod; 11. Tapered rod; 12. Screw rod; 13. Docking rod; 2. Plastic expansion piece; 21. Semicircular clamp; 22. Connecting piece; 23. Threaded groove; 24. Expansion groove; 25. Locking cone; 26. Positioning protrusion; 27. Connecting rod; 28. Connecting groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The utility model discloses an internal locking structure for locking a trekking pole, comprising an aluminum rod 1 and a plastic expansion piece 2, wherein the plastic expansion piece 2 is sleeved on the aluminum rod 1, and a screw 12 is provided at one end of the aluminum rod 1 through a tapered rod 11, and the plastic expansion piece 2 comprises two semicircular hoops 21 which are combined into a full circle, and a thread groove 23 which is threadedly sleeved with the screw 12 is commonly provided inside the two semicircular hoops 21, an expansion groove 24 is provided at one end of the semicircular hoop 21, and a locking cone surface 25 which fits with the tapered rod 11 is provided inside one end of the semicircular hoop 21.

[0020] Specifically, the plastic expansion member 2 is conical, see Figure 1The overall conical shape of the plastic expansion piece 2 is used. The aluminum rod 1 and the plastic piece are respectively installed inside the upper section rod and the lower section rod of the trekking pole. When docking, the plastic expansion piece 2 is put on the docking rod 13. As it is advanced, the thread groove 23 contacts the screw rod 12. The upper section rod or the lower section rod is rotated so that the thread groove 23 is connected with the screw rod 12. The expansion groove 24 is opened so that the locking cone surface 25 contacts the cone rod 11. As the thread groove 23 continues to be screwed into the screw rod 12, one end of the plastic expansion piece 2 can compress the expansion groove 24 to expand and expand against the inner wall of the upper section rod, quickly completing the locking. Alternatively, the two semicircular hoops 21 are directly wrapped around the screw rod 12 and the cone rod 11, and the two semicircular hoops 21 are connected together through the connecting rod 27 and the connecting groove 28. Then, the lower section rod can be docked with the upper section rod.

[0021] Specifically, one end of the two semicircular hoops 21 is provided with a connecting piece 22, the connecting piece 22 is made of plastic, and the positioning protrusion 26 is in a square, a long strip, or a circle. Figure 1 The connecting piece 22 is used to connect the two semicircular hoops 21 together so that they will not fall off when separated.

[0022] Specifically, a plurality of positioning protrusions 26 are provided on the outside of the semicircular clamp 21 , and the positioning protrusions 26 are used to connect with the inside of the lower section rod to achieve synchronous rotation of the lower section rod and the plastic expansion member 2 .

[0023] Specifically, a plurality of connecting rods 27 and a plurality of connecting grooves 28 are respectively provided at the connection of the two semicircular clamps 21. One end of the connecting rod 27 is inserted into the interior of the connecting groove 28. The connecting rod 27 cooperates with the connecting groove 28 to ensure the connection stability of the two semicircular clamps 21.

[0024] Specifically, a docking rod 13 is provided at one end of the screw rod 12 away from the tapered rod 11 , and one end of the docking rod 13 away from the screw rod 12 penetrates to the outside of the plastic expansion member 2 .

[0025] To sum up, the inner locking structure for locking the trekking pole, the plastic expansion piece 2 and the aluminum rod 1 are connected by a matching threaded groove 23 and a screw 12 structure, and can move up and down. The plastic expansion piece 2 adopts a two-half-open design and can be quickly assembled with the aluminum rod 1. It is positioned by the connecting rod 27 and the connecting groove 28, and does not require any accessories to prevent it from falling off. The two semicircular hoops 21 are connected together by a connecting piece 22, and there is no need to pair them during assembly, which makes it more convenient to operate and meets the user's needs.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inner locking structure for locking a trekking pole, comprising an aluminum rod (1) and a plastic expansion member (2), characterized in that: The plastic expansion piece (2) is sleeved on the aluminum rod (1), and one end of the aluminum rod (1) is provided with a screw rod (12) through a tapered rod (11). The plastic expansion piece (2) comprises two semicircular hoops (21) that are combined into a full circle. The interiors of the two semicircular hoops (21) are jointly provided with a thread groove (23) that is threadedly sleeved with the screw rod (12). An expansion groove (24) is provided at one end of the semicircular hoops (21), and a locking cone surface (25) that fits the tapered rod (11) is provided at one end of the semicircular hoops (21).

2. The inner locking structure for locking a trekking pole according to claim 1, characterized in that: The plastic expansion piece (2) is conical.

3. The inner locking structure for locking a trekking pole according to claim 1, characterized in that: One end of the two semicircular hoops (21) is commonly provided with a connecting piece (22).

4. The inner locking structure for locking a trekking pole according to claim 1, characterized in that: The exterior of the semicircular hoop (21) is provided with a plurality of positioning protrusions (26).

5. The inner locking structure for locking a trekking pole according to claim 1, characterized in that: The positioning protrusion (26) is in the shape of a square, a long strip, or a circle.

6. The inner locking structure for locking a trekking pole according to claim 1, characterized in that: A plurality of connecting rods (27) and a plurality of connecting grooves (28) are respectively provided at the connection points of the two semicircular hoops (21), and one end of the connecting rod (27) is inserted into the interior of the connecting groove (28).

7. The inner locking structure for locking a trekking pole according to claim 1, characterized in that: A docking rod (13) is provided at one end of the screw rod (12) away from the tapered rod (11), and the end of the docking rod (13) away from the screw rod (12) penetrates to the outside of the plastic expansion piece (2).

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