CN2609397Y

CN2609397Y - Extension walking stick

Info

Publication number: CN2609397Y
Application number: CN 03229887
Authority: CN
Inventors: 田万植
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-03-28
Filing date: 2003-03-28
Publication date: 2004-04-07
Anticipated expiration: 2013-03-28

Abstract

The utility model discloses a retractable walking stick, comprising a primary branch pipe, an extension pipe and an extension pole, which are serially connected with each other in slip-on type. Screws are respectively arranged on the upper end of the extension pipe and the extension pole. A dilation block, a binding screw cap which is in spiral union and a turn cap are serially sleeved with the screw, and inserted in a taper convex part of the binding screw cap and a taper convex part of the lower part of the screw in the two perforated ends of the dilation block. A round groove is arranged on the lateral side of the dilation block, and a flexible round cover is arranged inside the round groove. Extension swings are distantly distributed on the length wise direction of the dilation block. The utility model is characterized in that the structure makes the friction force bigger which is produced by the dilation block and the primary branch pipe, more tightly and reliably contacting with the pipe wall, to achieve the effect of ideal slide prevention; the utility model in particular arranges a cushion spring on the extension pipe to avoid the palm painful from the reaction force of the walking stick, ensuring comfortable and reliable when the cane is in use.

Description

Telescopic walking stick

Technical field

The utility model relates to a kind of telescopic walking stick technical field.

Background technology

Existing telescopic walking stick kind is a lot, and style is different.As existing a kind of product, its patent No. is 98200461.3 Chinese patent, it mainly comprises a primary branch and an extension that is located in this primary branch to denomination of invention for " mountain-climbing, on foot with crutch and ski stick telescopic positioner ", but this extension front end is provided with the solid screw rod in this primary branch of a spiral shell, and this telescopic positioning device comprises that also a bulging piece and one open nut admittedly; This bulging piece is a blob of viscose with great friction coefficient, elasticity and hardness, and it is provided with a perforation in central authorities, and the screw rod cover of this extension is through at this perforation, and is placed in this primary branch inwall; This is opened nut admittedly and also is contained in this primary branch inwall, it is provided with a screw in central authorities, the screw rod of this extension screws togather this screw, this is opened the nut latter end admittedly and is formed with an expansion segment, this expansion segment supports to arrive at this primary branch inwall, and be arranged with one respectively at the two ends of bulging piece and push pad, and bulging piece week side recessed of a plurality of air flues are arranged.This structure is compared with general telescopic walking stick and is had certain good child-rearing, but its shortcoming is also not little, the structure that at first is its design is reasonable not enough, the bulging piece of its design is to make by rotating screw bolt to open extruding bulging piece at the bottom of the nut lower flat admittedly and make bulging piece bulging by the reaction force acting in conjunction of screw rod base plane, so that reach the anti-slip effect between the telescoping tube, anti-slip effect between this telescoping tube, be to realize fully with the skin-friction force between bulging piece and the tube wall, if this walking stick is long slightly service time, inevitable the squeezing to some extent of tube wall expanded, and the bulging degree of bulging piece has certain limit, if add that to push strength with hand big slightly, the friction dynamics of its generation just can not reach the anti-slip effect between the telescoping tube, and promise bulging piece is stained with some dusts or impurity, and then the anti-slip effect that it brought will be poorer; It is bad that next walking stick that is its designs also can feel occur when using, and just seemingly holding a hardwood rod, do not have elasticity and soft comfort.These all can bring inconvenience to the user, therefore await improving.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of project organization rationally, the telescopic walking stick of big, the good antiskid effect of frictional force between the telescoping tube.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this telescopic walking stick comprises primary branch, extension, extension rod, and sleeve type connects successively, upper end at extension and extension rod is respectively arranged with screw rod, on screw rod, be nested with successively and dilate piece, fastening nut and turncap are spirally connected, and described its two ends of perforation that dilate on the piece plug with the taper protuberance of the taper protuberance of opening the nut lower end admittedly and screw rod bottom respectively, be provided with annular groove at the lateral surface that dilates piece, and be nested with in annular groove by elastic circular ring, dilate piece vertically on the compartment of terrain be distributed with and dilate seam.

As improvement, its two ends of described perforation are conical, and suitable and peg graft with the taper protuberance of conical taper protuberance in fastening nut lower end and screw rod lower cone shape respectively.

Improve again, its bottom of screw rod of described extension upper end metallic rod that is spirally connected, by the other end plug-in mounting of metallic rod in the extension upper end, and be provided with buffer spring and be nested with on metallic rod, this buffer spring one end and screw rod bottom are inconsistent, and its other end contacts mutually with the extension upper surface.

Compared with prior art, advantage of the present utility model is to dilate the piece perforation because of the utility model adopts, and the two ends in this hole are conical, and it is suitable and peg graft with the conical taper protuberance of conical taper protuberance in fastening nut lower end and screw rod bottom respectively, this structure makes the anti-slip effect between the telescoping tube not only be embodied in the friction that dilates between piece surface and the tube wall, but also the taper protuberance that is embodied in conical taper protuberance in fastening nut lower end and screw rod lower cone shape produces a kind of pressure to tube wall indirectly, the easier promotion of this indirect pressure dilates the frictional force that is produced between piece and the tube wall, make frictional force bigger, dilating piece contacts closelyr to tube wall, more firm, so that reach desirable anti-slip effect; Again because the utility model has also adopted a be spirally connected metallic rod of the screw rod bottom of extension upper end, by the other end plug-in mounting of metallic rod in the extension upper end, and be nested with buffer spring on the metallic rod, because general walking stick, when the hand walking stick surpasses certain dynamics, because walking stick produces reaction force to palm, often cause the compressing of palm and the feels pain sense, because this product is provided with buffer spring on extension, so walking stick is exerted oneself when bigger than normal at palm, walking stick will compress automatically and produce a kind of buffering course, therefore the reaction force of having avoided walking stick makes the consumer feel not only comfortable but also firm when using walking stick to the pain that palm produced.

Description of drawings

Fig. 1 is a structural front view of the present utility model,

Fig. 2 is the local amplification view of Fig. 1,

Fig. 3 is the local amplification view of Fig. 1,

Fig. 4 is the local amplification view of the another kind of embodiment of Fig. 1.

The specific embodiment

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

Embodiment one, as shown in Figure 1, telescopic walking stick of the present utility model, form by primary branch 2, extension 4 and extension rod 5, this primary branch 2, extension 4 and extension rod 5 are made by high strength, light weight alloy respectively, be equipped with extension 4 in the primary branch 2, in extension 4, be nested with extension rod 5 again, so that form three nodular walking sticks.On the lower end socket place outer surface of the lower end of primary branch 2 and extension 4, be equipped with the sleeve 3 of decoration and reinforcement effect respectively, be equipped with style handle attractive in appearance 1 in the upper end of primary branch 2, handle 1 has macromolecular material to make, and is soft comfortable, in handle 1 upper side one side opening arranged, in this side opening, cover one and carry band, this carries band and can carry walking stick and hang on the arm, does other thing so that can deviate from hand, handle 1 and carry band and be fixed on primary branch 2 upper ends in the lump by screw.Bottom at extension rod 4, be nested with the style splicing sleeve of also making 6 attractive in appearance by macromolecular material, splicing sleeve 6 covers are through at extension rod 5 lower ends, and splicing sleeve 6 is fixed on the bottom of extension rod 5 by a convex nut, this splicing sleeve 6 is except having beautiful decoration, when limitting in the earth, the walking stick lower end plays upwards supporting role to a certain degree in addition, also be equipped with in the lower end of splicing sleeve 6 and both had the sense of decoration, can prevent that again walking stick from directly contacting with object, and the block of the wearing and tearing or the walking stick of making dirty cover 7, block cover 7 is also made by anti-wear-resisting macromolecular material, after being worn or making dirty, block cover 7 overlaps 7 as long as change block, change very conveniently, put new block cover 7 again and promptly finish replacing as long as extract old block cover 7.In order to make the user bring bigger convenience, this product also shows scale mark 26 on the appearance side of extension 4, and the user can regulate own needed distance very exactly, and is both convenient, firm, practical, elegant in appearance again.

Be positioned at the extension 4 of primary branch 2 and the socket place of primary branch 2 location structure is arranged, see Fig. 2 and shown in Figure 3, this positioner comprises by dilating piece 9, fastening nut 8, turncap 14, and place the screw rod 16 of extension 4 upper ends to form, dilating piece 9 is to have great friction coefficient and suitable elasticity, the macromolecular material of hardness is made, dilate piece 9 central authorities be provided with one the perforation 27, the two ends journey taper shape of this perforation 29, and should the taper shape two ends plug with the conical taper protuberance 17 of taper protuberance 28 and fastening nut 8 lower ends of screw rod 16 lower cone shapes respectively, and dilate piece 9 vertically on the compartment of terrain be distributed with and dilate seam 29.Be shaped on annular groove 19 on the circumference of stage casing, the outside part that dilates piece 9, be equipped with an elastic circular ring 18 in annular groove 19, this elastic circular ring 18 all is trapped in the annular groove 19, contacts with tube wall to avoid elastic circular ring 18.Described fastening nut 8 its central authorities are provided with screw 30, and its lower end is conical taper protuberance 17, this taper protuberance 17 promptly with two conical bores that dilate on piece 9 two ends in one suitable and peg graft, at the top of fastening nut 8 latter end an enlarged portion 15 is arranged, to support to arrive on primary branch 2 inwalls.Terminal spiral shell at described screw rod 16 is provided with a turncap 14, and this turncap 14 is positioned screw 30 outer rims on the fastening nut 8, makes fastening nut 8, dilating piece 9 can't be from screw rod 16 slippage.When pushing walking stick with hand, the reaction force of walking stick is to pain that palm produced, the utility model metallic rod 10 that is spirally connected in the bottom of screw rod 16, the fixed block 13 that is fixed on extension 4 upper ends is passed in the other end of this metallic rod 10, bind metallic rod 10 lock tubes in fixed block 13 by nut 22 again, and be provided with buffer spring 11 and be nested with on metallic rod 10.These buffer spring 11 one ends and screw rod 16 bottoms are inconsistent, and its other end contacts mutually with extension 4 upper surfaces, and is nested with on metallic rod 10.The lateral surface of described fixed block 13 is provided with several sunken holes 21, match with protuberance 20 on extension 4 madial walls and be fixed on the extension 4, upper surface at fixed block 13, have one inner to be the cylindrical boss 12 of concentric holes with fixed block 13, make buffer spring 11 can be tightr with more suitably contact mutually with fixed block 13.

Be nested with the location structure of extension rod 5 and extension 4 in extension 4, its structure is the same with primary branch 2 location structures with extension 4, and what distinguished is that this location structure is not established buffer spring 11, and described screw rod is the upper end that directly is fixed on extension rod 5.

The utility model is when assembling, to dilate piece 9 earlier is inserted on the screw rod 16 of extension 4 upper ends, then fastening nut 8 is screwed togather and be inserted in screw rod 16, again turncap 14 formula that screws togather is inserted on the end of screw rod 16, again the end that location structure is housed on the extension 4 is inserted in the primary branch 2, make fastening nut 8 utilize portion that dilates 15 and primary branch 2 inwalls to support to arrive in spacing.With the same manner extension rod 5 is inserted in the extension 4, promptly finishes assembling.

When the extension 4 of user's desire location, need only by fastening nut 8 can't turn characteristic, the turn extension 4 in a clockwise direction, its screw rod 16 is advanced from the screw 30 interior upwards spiral shells of fastening nut 8 gradually, ordering about fastening nut 8 oppositely forces and into dilates piece 9, the conical taper protuberance 28 of the conical taper protuberance in fastening nut 8 lower ends 17 and screw rod bottom is clamp-oned and is dilated piece 9 from dilating piece 9 conical two respectively, make and dilate piece 9 bulging, clog in primary branch 2 inwalls, till this extension 4 can't turn, at this moment, because dilating piece 9 itself has great friction coefficient, and have involved and abstruse, the effect of on-slip, the conical taper protuberance 28 of adding the conical taper protuberance in fastening nut 8 lower ends 17 and screw rod bottom is indirectly to the pressure of primary branch 2 inwalls, so that produced powerful frictional resistance at primary branch 2 inwalls, made extension 4 obtain the location.On the contrary, if user's desire is adjusted the use length of extension 4, then can be by counter clockwise direction turn extension 4, its screw rod 16 is moved back from the screw 30 interior spiral shells downwards of fastening nut 8 gradually, this fastening nut 8 just can oppositely expel and dilate piece 9, by the elastic force that is nested with the elastic circular ring in annular groove, make and dilate piece 9 reinstatements, and no longer closely contact with the inwall of primary branch 2, till this screw rod 16 is subjected to turncap 14 blocks and can't turn, at this moment, because 4 enlarged portion 15 by fastening nut 4 of extension are touched to the location with primary branch 2 inwalls, the user need only bestow the strength that extension 4 stretches or shrinks, just can overcome the frictional force of fastening nut 8, and can as piston, not be difficult to drive, the user can very press the dimension mark 26 of extension 4 lateral surfaces effortlessly, adjusts extension 4 to required length.Use again with quadrat method location extension 4 and extension rod 5, can use walking stick, operate very simple, convenient.

Embodiment two, see shown in Figure 4ly, and its primary structure and embodiment one are just the same, different is, be located at the conical taper protuberance 23 of screw rod 24 bottoms on the extension 4, be not direct pouring on metallic rod 25 bottoms, but change on the position that the mode of being inserted in places screw rod 24 bottoms.So positioner is when assembling, be inserted in conical taper protuberance 23 earlier in screw rod 24 bottoms, then be inserted in and dilate piece 9, again fastening nut 8 is screwed togather and be inserted in screw rod 24, at last turncap 14 plug-in types are screwed and are locked on the end of screw rod 24, then the end that positioner is housed on the extension 4 is inserted in the primary branch 2, make fastening nut 8 utilize portion that dilates 31 and primary branch 2 inwalls to support to arrive in spacing.With the same manner extension rod 5 is inserted in the extension 4, promptly finishes assembling.

Telescopic walking stick of the present utility model; its material is except that being made by metal tube; can also make by other material; as macromolecular material etc.; the telescoping tube of walking stick is except three nodulars; also can be two joint or more pieces more, as long as it is its location structure is to belong in the protection zone of the present utility model, promptly all real in abuse.

Claims

1, a kind of telescopic walking stick, it comprises primary branch (2), extension (4), extension rod (5), and sleeve type connects successively, upper end at extension (4) and extension rod (5) is respectively arranged with screw rod (16), on screw rod (16), be nested with successively and dilate piece (9), fastening nut (8) and turncap (14) are spirally connected, it is characterized in that: described its two ends of perforation (27) that dilate on the piece (9) plug with the taper protuberance (17) of fastening nut (8) lower end and the taper protuberance (28) of screw rod bottom respectively, be provided with annular groove (19) at the lateral surface that dilates piece (9), and be nested with in annular groove (19) by elastic circular ring (18), vertically go up the compartment of terrain and be distributed with and dilate seam (29) dilating piece (9).

2, telescopic walking stick according to claim 1, it is characterized in that its two ends of described perforation (27) for conical, and suitable and peg graft with the taper protuberance (28) of fastening nut (8) conical taper protuberance in lower end (17) and screw rod (16) lower cone shape respectively.

3, telescopic walking stick according to claim 1 and 2, its bottom of screw rod (16) that it is characterized in that described extension (4) upper end metallic rod (10) that is spirally connected, by the other end plug-in mounting of metallic rod (10) in extension (4) upper end, and be provided with buffer spring (11) and be nested with on metallic rod (10), this buffer spring (11) one end and screw rod (16) bottom are inconsistent, and its other end contacts mutually with extension (4) upper surface.

4, telescopic walking stick according to claim 3 is characterized in that described plug-in mounting is that metallic rod (10) is passed the fixed block (13) that is fixed on extension (4) upper end, is bound metallic rod (10) lock tube in fixed block (13) by nut (22) again.