CN201815061U

CN201815061U - Alpenstock with adjustable length

Info

Publication number: CN201815061U
Application number: CN2010202829702U
Authority: CN
Inventors: 金兴方
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-03
Filing date: 2010-08-03
Publication date: 2011-05-04
Anticipated expiration: 2020-08-03

Abstract

The utility model provides an alpenstock comprising at least two end-to-end cane tubes, wherein the first cane tube and the second cane tube in at least two adjacent cane tubes are connected through a flexible positioning device and can be mutually sheathed; the upper part of the flexible positioning device can be locked or unlocked relative to the first cane tube; the flexible positioning device comprises a centre rod and a bush ring and an expansion piece which are sheathed outside the centre rod; and when moving downwards, the expansion piece gradually expands until to be clung to the inner wall of the first cane tube under the action of the outer conical surface of the bush ring due to the rotation relative to the centre rod. After the alpenstock is adjusted by being rotated, the fixing effect of the alpenstock is good; and since the expansion piece and the bush are fit with each other through the conical surface, the expansion character is stronger, and the expansion piece can expand to sufficient volume only by small rotating force so as to obtain frictional force needed for fixing all the cane tubes.

Description

A kind of alpin-stock that can regulate length

Technical field

The utility model relates to a kind of alpin-stock, particularly, relates to a kind of alpin-stock that can regulate length.

Background technology

Traditional alpin-stock has stick handle, at least two walking stick pipes and the first-class parts of walking stick cane, at least wherein the first cane pipe and the second cane pipe connect by buffer unit or jockey and can overlap mutually and contract, for example when connecting the first cane pipe and the second cane pipe by buffer unit, the connected mode of the upper end of buffer unit and the first cane pipe can fixedly connected and flexibly connect between conversion, and fixedly connected with the second cane pipe in its lower end.Particularly, described buffer unit upper end is provided with the adjustable expansion element of diameter, connects the first cane pipe of alpin-stock by expansion element; When the needs alpin-stock carries out support works, regulate expansion element and make its chucking first cane pipe that expands, thereby win cane pipe and the second cane pipe are interfixed; When needing the length of telescopic adjustment alpin-stock, when for example shortening that the walking stick pipe deposits that alpin-stock, elongation walking stick pipe prepare to use alpin-stock or regulating alpin-stock length according to road and user's height, regulate expansion element and make its contraction no longer tighten the first cane pipe, thereby the cane pipe of winning can freely be stretched with respect to the second cane pipe.

For example Chinese patent application number has disclosed a kind of such structure for CN200420019725.7 " alpin-stock, ski stick telescopic positioning device ": a kind of alpin-stock, its buffer unit includes primary branch, is located in the extension in the primary branch, described extension upper end is provided with the screw rod that is fixed in the described primary branch, is provided with the upper and lower expanding block of mutual applying in the described extension; The described expanding block lower surface of going up is the inclined-plane of working in coordination with following expanding block upper surface, the side of described upper and lower expanding block supports to arrive at described primary branch inwall, the described expanding block top of going up is provided with the upper limit block, described expanding block down below is provided with the lower limit block, is provided with shock-proof spring in the described extension.In this technical scheme, because described expansion element is to form by the expanding block that two inclined-planes cooperatively interact, its pressure to primary branch only is directly proportional with the downforce of postrotational screw, and at when mountain-climbing user's inconvenience rotary screw energetically often, make that the outside bulbs of pressure of expanding block are less, thereby the frictional force between expanding block and the primary branch is also less, has influenced the fixed effect between the cane pipe; Secondly, when rotary screw,, assemble again after just alpin-stock need being taken apart on the screw rod, bother very much and again screw is installed to if rotation excessively then can cause screw and screw rod to be separated; In addition,,, understand the wearing and tearing of acceleration spring in the bigger environment of the temperature difference, influence the service life and the shock-proof effect of spring if the alpin-stock water inlet is perhaps used because spring is set directly in the extension.

The utility model content

Problem to be solved in the utility model is: the problem at above-mentioned existence provides a kind of good fixing effect, the firm alpin-stock of assembling.

The technical scheme that the utility model adopted is: a kind of alpin-stock is provided, comprise at least two end to end cane pipes, and wherein the first cane pipe at least two adjacent cane pipes and the second cane pipe connect by telescopic positioning device and can overlap mutually and contract, the top of described telescopic positioning device can lock or release by the relative first cane pipe, fixedly connected with the second cane pipe in the bottom of described telescopic positioning device, it is characterized in that: described telescopic positioning device comprises center-pole and is set in center-pole outer grommet and expansion part, wherein grommet has up-small and down-big male cone (strobilus masculinus), by the middle part of axial limiting at center-pole, the top of described expansion part is provided with the suitable internal thread of external screw thread with described center-pole top, the lower side of expansion part has axial cut-outs and is separated at least two expanding plates, and when described expansion part moved down because of rotating relative to center-pole, described expanding plate was progressively expanded under the male cone (strobilus masculinus) effect of described grommet until being close to the residence and is stated the inwall of the first cane pipe.

Further, the bottom of described center-pole is provided with through hole and sleeve pipe, described telescopic positioning device also includes a sleeve pipe, insert in this sleeve pipe the bottom of described center-pole, one spring axially is arranged in the described sleeve pipe, and the upper end of spring and the bottom of center-pole offset, and make center-pole have the trend that upwards resets all the time; Described sleeve pipe side is slotted, and a pin is located on the center-pole in the corresponding through hole, and the end of pin props up the upper end of described slit, thereby center-pole is positioned in the described sleeve pipe, and described sleeve pipe is inserted solid in the second cane pipe.Described sleeve pipe and the described second cane pipe are complementary, and described sleeve pipe upper end is provided with the slightly thick retaining pipe of the more described second cane pipe, and the described second cane pipe tightly is enclosed within on the described sleeve pipe and is positioned at described retaining pipe below.Because spring is arranged in the sleeve pipe; and the slit of sleeve pipe is also less relatively, and it is good that the protection effect of spring is set directly in the cane pipe than spring, has prolonged the service life of spring; especially under special environment for use, can be because of crossing cold or crossing the shock-absorbing performance of heat affecting spring.

Further, between described back-up ring and described guide thimble, also be provided with buffering ring, when alpin-stock is subjected to bigger impulsive force, avoid sleeve pipe directly to clash into back-up ring, cause back-up ring to damage, thereby influence the mechanical performance of alpin-stock.

Further, described center-pole is respectively arranged with collar and back-up ring in the top and bottom of the described grommet of correspondence, thereby with described grommet axial limiting; The upper end of described center-pole is provided with a snap ring, forms the upper limit that described expansion part is moved up; Make that expansion part and grommet can not be shifted or come off when dismounting the utility model alpin-stock, when regulating alpin-stock especially in the open air, prevent above-mentioned element falling or drop, cause scrapping of alpin-stock.

Preferably, described grommet is being arranged on the center-pole around the mode of described center-pole rotation, like this, screw described expansion part to expansion part will expand with first the battle pipe be close to state the time, it is less to continue the required revolving force of rotation expansion part, more laborsaving convenience, and make the applying better effects if of described expansion part and grommet.

Compared with prior art, the utility model alpin-stock because adopt the expansion part of similar setscrew principle and grommet as the core parts of telescopic buffer, the fixed effect of alpin-stock was better after rotation was regulated, and owing to fit by taper seat between expansion part and the grommet, expansion character is stronger, only need small rotation power just can make described expansion part be expanded to enough volumes, reach and fix the required frictional force of each walking stick cane pipe.

Description of drawings

By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present utility model will become:

Fig. 1 shows the Facad structure schematic diagram of the telescopic buffer after the assembling of the alpin-stock that the utility model provides.

Fig. 2 shows the structural representation from the side-lower observation of the telescopic buffer of alpin-stock of the present utility model.

Fig. 3 shows the exploded perspective view of the telescopic buffer of alpin-stock of the present utility model.

Fig. 4 shows the telescopic buffer and the cane pipe of alpin-stock of the present utility model and assembles preceding schematic diagram.

Partial sectional view after Fig. 5 shows the telescopic buffer of alpin-stock of the present utility model and cane pipe and assembles.

Fig. 6 shows alpin-stock shown in Figure 5 cutaway view when being under pressure.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing:

Embodiment: extremely shown in Figure 6 as Fig. 1, alpin-stock in the present embodiment, comprise at least two end to end cane pipes, and wherein first cane pipe clamp ring 3 snap rings at least two adjacent cane pipes and the second cane pipe clamp ring, 4 snap rings connect by telescopic positioning device and can overlap mutually and contract, relative first cane pipe clamp ring 3 snap ring lockings or the release of top energy of telescopic positioning device, and fixedly connected with the second cane pipe 4 in its underpart.Alpin-stock also can have a plurality of adjacent cane pipe groups that connect by telescopic buffer, thereby makes that the length adjustment scope of alpin-stock is bigger.Particularly, telescopic positioning device comprises center-pole 1, expansion part 5, grommet 6 and sleeve pipe 2, and expansion part 5 and grommet 6 are set in the top of center-pole 1.

The top of center-pole 1 is provided with external screw thread 11, the middle part is provided with back-up ring 12 and the bottom is provided with through hole, also is provided with buffering ring 14 between back-up ring 12 and guide thimble 2.Back-up ring 12 is fixed on the center-pole 1.Through hole is one to run through the pore of center-pole 1.Buffering ring 14 can be one to be arranged on the plastic hoop or the rubber ring of back-up ring 12 belows.

Sleeve pipe 2 be a upper end open and with center-pole 1 be the hollow heat insulated pipe that is complementary, hollow plastic tube for example is so that center-pole 1 is inserted in the sleeve pipe 2.Sleeve pipe 2 sides have two relative slits 21.Insert in these sleeve pipe snap ring 2 snap rings the bottom of center-pole snap ring 1 snap ring, and in sleeve pipe snap ring 2 snap rings that a spring 7 axially is arranged on, and the bottom of the upper end of spring 7 and center-pole offsets, and makes center-pole snap ring 1 snap ring have the trend that upwards resets all the time; Slotted snap ring 21 snap rings in sleeve pipe snap ring 2 snap ring sides, one pin snap ring, 22 snap rings are located in the through hole corresponding on center-pole snap ring 1 snap ring, and the end of pin snap ring 22 snap rings props up the upper end of slit snap ring 21 snap rings, thereby center-pole snap ring 1 snap ring is positioned in sleeve pipe snap ring 2 snap rings, and sleeve pipe is inserted solid in the second cane pipe clamp ring, 4 snap rings.Sleeve pipe 2 is complementary with the coupling part (i.e. the second battle pipe, 4 ports that are connected with telescopic buffer) of the second cane pipe 4, thereby can be clamped in the cane pipe 4 antitorquely.The upper end of sleeve pipe 2 also is provided with the retaining pipe 23 slightly thick with respect to the coupling part of the second cane pipe 4, and this retaining pipe 23 makes when the second cane pipe 4 tightly is enclosed within on the sleeve pipe 2 that its end can be positioned at retaining pipe 23 belows.

Grommet 6 is spacing on the back-up ring 12 at center-pole 1 middle part and be positioned at expansion part 5, and its outer surface is a up-small and down-big male cone (strobilus masculinus).Grommet 6 is being arranged on the center-pole 1 around the mode of center-pole 1 rotation, and when expansion part 5 rotations, grommet 6 can rotate thereupon, makes will be expanded to when being close to state with the first battle pipe 3 when expansion part 5, continues to rotate the more laborsaving convenience of expansion part 5.Center-pole 1 is provided with removable with grommet 6 spacing collars 13 on back-up ring 12, and particularly, collar 13 is plastic clip, is provided with the draw-in groove that is complementary with it in the position a little more than grommet 6 of center-pole 1, makes collar 13 to be stuck on the draw-in groove easily.

Expansion part 5 tops are provided with and the suitable internal thread 51 of the external screw thread 11 on center-pole 1 top, lower side is separated at least two expanding plates 53 by otch 52, promptly when expansion part 5 moved down because of rotating relative to center-pole snap ring 1 snap ring, expanding plate snap ring 53 snap rings were progressively expanded under the male cone (strobilus masculinus) effect of grommet snap ring 6 snap rings until being close to the residence and are stated the inwall of the first cane pipe clamp ring, 3 snap rings.The stroke of external screw thread 11 should be enough to make that expansion part 5 can vertically move certain distance, this distance makes expansion part 5 to change under contraction state and expansion state, particularly, under contraction state, expansion part 5 and the first battle pipe, 3 inwalls are not close to, and under expansion state, expansion part 5 and the first battle pipe, 3 inwalls are close to.Preferably, the top of expanding plate 53 interconnects and is integral and the bottom is separated from each other, thereby guarantees the mechanical strength and the expansion character of expansion part simultaneously.The upper end of center-pole 1 is provided with the snap ring 15 that removable restriction expansion part 5 moves up, particularly, snap ring 15 is plastic clip, is provided with the draw-in groove that is complementary with it in the position a little more than expansion part 5 of center-pole 1, makes snap ring 15 to be stuck on the draw-in groove easily.

It will be appreciated by those skilled in the art that above-mentioned expansion part 5 and grommet 6 combinations have promptly realized the effect of expansion element in the prior art.When expansion part 5 moved down, grommet 6 can push expansion part 5 internally, and expanding plate 53 expansions are close to the first cane pipe, 3 inwalls until expansion part 5, and at this moment, the first battle pipe 3 can be fixed by the relative second battle pipe 4; When expansion part 5 moves up, be separated between grommet 6 and the expansion part 5, expanding plate 53 shrinks no longer is close to the first cane pipe, 3 inwalls until expansion part 5, and at this moment, the first battle pipe 3 can stretch up and down by the relative second battle pipe 4.

Particularly, a preferred implementation as present embodiment, the coupling part snap ring of getting the first battle pipe 3 i.e. the first battle pipe, 3 ports that are connected with telescopic buffer) internal diameter less than the thickness sum of bottom external diameter with the expanding plate 53 of expansion part 5 of grommet 6, and first hold the internal diameter of managing 3 the coupling part external diameter greater than expansion part 5.Those skilled in the art understand, this makes when expansion part 5 rotates to extreme lower position, be that the bottom of expansion part 5 is when moving to the position of back-up ring 12, under the effect that is subjected to grommet 6 extruding force from inside to outside, the bottom external diameter of expansion part 5 is greater than the internal diameter of the coupling part of the first battle pipe 3, thereby the inwall of being close to the first battle pipe 3 can't move up and down it; And when expansion part 5 rotates to by last position, because grommet 6 is not at extruding expansion part 5, the maximum outside diameter of expansion part 5 is less than the internal diameter of the coupling part of the first battle pipe 3, this moment, expansion part 5 no longer was close to the inwall of the first battle pipe 3, the first battle pipe 3 can relatively move up and down, thus the length that realizes regulating alpin-stock.

The telescopic buffer two ends are extremely shown in Figure 6 with connected mode such as Fig. 4 of the first battle pipe, the 3 and second cane pipe 4 respectively.

When the user needs 4 flexible first battles of the relative second cane pipe to manage 3, only need the turn first battle pipe 3, drive expansion part 5 carries out spinning and vertically moves up; Along with expansion part 5 moves up, grommet 6 pushes the expanding plate 53 of expansion part 5 no longer internally, the reduced diameter of expansion part 5 makes that the frictional force between the inwall of the expansion part 5 and the first battle pipe 3 diminishes, and this moment first, battle pipe 3 was can the comparatively freely relative second cane pipe 4 flexible up and down.

After above-mentioned telescopic adjustment is finished, only need the reverse turn first battle pipe 3, drive expansion part 5 and carry out reverse spinning (at this moment, although expansion part 5 no longer is close to the inwall of the first battle pipe 3, but still have enough frictional force to make between the inwall of the expansion part 5 and the first battle pipe 3 to win battle pipe 3 can drive expansion part 5 rotations) and vertically move down, because grommet 6 pushes the expanding plate 53 of expansion part 5 internally, it is big that the diameter of expansion part 5 becomes gradually, make the frictional force between the inwall of the expansion part 5 and the first battle pipe 3 become big, interfix with telescopic buffer until the first battle pipe 3, this moment first, battle pipe 3 no longer can stretch with respect to the second cane pipe 4, thereby made alpin-stock produce fixed support effect preferably.

Claims

1. alpin-stock, comprise at least two end to end cane pipes, and wherein the first cane pipe (3) at least two adjacent cane pipes and the second cane pipe (4) connect by telescopic positioning device and can overlap mutually and contract, the top of described telescopic positioning device can lock or release by the relative first cane pipe (3), fixedly connected with the second cane pipe (4) in the bottom of described telescopic positioning device, it is characterized in that: described telescopic positioning device comprises center-pole (1) and is set in center-pole (1) outer grommet (6) and expansion part (5), wherein grommet (6) has up-small and down-big male cone (strobilus masculinus), by the middle part of axial limiting in center-pole (1), the top of described expansion part (5) is provided with and the suitable internal thread (51) of the external screw thread (11) on described center-pole (1) top, the lower side of expansion part (5) has axial cut-outs (52) and is separated at least two expanding plates (53), and when described expansion part (5) moved down because of rotating relative to center-pole (1), described expanding plate (53) was progressively expanded under the male cone (strobilus masculinus) effect of described grommet (6) until being close to the residence and is stated the inwall of the first cane pipe (3).

2. alpin-stock according to claim 1, it is characterized in that: described telescopic positioning device also includes a sleeve pipe (2), insert in this sleeve pipe (2) bottom of described center-pole (1), one spring (7) axially is arranged in the described sleeve pipe (2), and the upper end of spring (7) and the bottom of center-pole offset, and make center-pole (1) have the trend that upwards resets all the time; Described sleeve pipe (2) side slotted (21), one pin (22) is located in center-pole (1) and goes up in the corresponding through hole, and the end of pin (22) props up the upper end of described slit (21), thereby center-pole (1) is positioned in the described sleeve pipe (2), and described sleeve pipe is inserted solid in the second cane pipe (4).

3. alpin-stock according to claim 2, it is characterized in that: described sleeve pipe (2) is complementary with the described second cane pipe (4), described sleeve pipe (2) upper end is provided with the slightly thick retaining pipe (23) of the more described second cane pipe (4), and the described second cane pipe (4) tightly is enclosed within described sleeve pipe (2) and goes up and be positioned at described retaining pipe (23) below.

4. alpin-stock according to claim 1 is characterized in that: described center-pole is respectively arranged with collar (13) and back-up ring (12) in the top and bottom of the described grommet of correspondence, thereby with described grommet axial limiting.

5. alpin-stock according to claim 4 is characterized in that: described grommet (6) is being arranged on the center-pole (1) around the mode of described center-pole (1) rotation.

6. alpin-stock according to claim 4 is characterized in that: also be provided with buffering ring (14) between described back-up ring (12) and described guide thimble (2).

7. according to the described alpin-stock of arbitrary claim in the claim 1 to 6, it is characterized in that: the upper end of described center-pole (1) is provided with a snap ring (15), forms the upper limit that described expansion part (5) is moved up.