TWM472432U - Extension adjusting and positioning structure of cane - Google Patents

Description

Telescopic adjustment positioning structure of walking stick

This creation is about a cane structure, especially a telescopic adjustment positioning structure with a simple operation and labor-saving adjustment of the cane.

According to a conventional telescopic adjustment structure of a cane, as shown in FIGS. 13 and 14, the cane 60 includes a main rod 61 and a rod 62, and the main rod 61 is provided with a telescopic positioning corresponding to the strut 62. The structure 70 includes a sleeve 71 and an expansion actuator 72. The sleeve 71 is inserted into the struts 62 in a tight fit state, and an external thread segment 711 is formed on the surface of the sleeve 71. The other end of the actuating member 72 is screwed to the outer threaded portion 711 of the sleeve 71, and the bottom end of the expanding actuating member 72 is provided with a resilient claw portion 721, and the sleeve 71 is sleeved with a tapered seat 80, and The sleeve 71 is provided with a supporting portion 712 for supporting the bottom of the tapered seat 80. The tapered seat 80 and the elastic claw portion 721 of the expanding actuating member 72 are in abutting state, so that the expanding actuating member 72 is The elastic claw portion 721 generates an outer sheet, and then the inner wall of the main rod 61 is brought into a positioning state. When the length of the cane 60 is to be adjusted, the user rotates the rod 62 to synchronously rotate the sleeve 71 and the cone seat 80. And driving the outer sleeve 711 of the sleeve 71 and the expansion actuating member 72 to generate a helical displacement, that is, the expansion can be controlled Pressing member 72 and the base 80 of the cone or loose change, and then to adjust the length of the object, but the concept of detailed structure of the above-described conventional surviving difficult to find some place many shortcomings, mainly due to go as follows:

(1) The stick 60 is tightened by the screw lock of the outer thread segment 711 of the sleeve 71, so that the cone seat 80 expands the expansion actuator 72, so that the elastic claw portion 721 of the expansion actuator 72 can tighten the main rod. If the inner wall of 61 is to be used to increase the tightening strength, it is necessary to apply more force to squeeze the expansion member 72 of the sleeve 71, which will cause the rotation resistance of the screw lock to be too large, and it is obviously difficult to operate. When the weight is applied to the main rod 61, the expansion actuating member 72 will be more abutted against the threaded portion 711 of the sleeve 71, which easily causes the locking between the expansion actuator 72 and the sleeve 71, so that It is more difficult for the user to loosen the rotation of the strut 62, so there is a lack of difficulty in operation and operation.

(2) The outer thread segment 711 and the expansion actuator 72 of the sleeve 71 must be adjusted in length by rotation, and the rod 62 is formed with a smooth outer surface, which makes it difficult for the user to grip the pole 62. In the rotation action, the speed of the rotation of the struts 62 is slow, and the length of the cane 60 cannot be changed quickly, which makes the operation inconvenient.

(3) The expansion actuating member 72 is a resilient claw portion 721 made of a plastic material to press the smooth inner wall of the main rod 61, so that the elastic claw portion 721 is smaller than the frictional resistance of the inner wall of the main rod 61, so that The pressing strength between the expansion actuator 72 and the main rod 61 is insufficient, and slippage is likely to occur, thereby causing a risk of assisting walking.

In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the author has finally achieved a practical and practical creation.

The technical problem to be solved by the present invention is to provide a telescopic adjustment positioning structure of a cane in view of the above-mentioned shortcomings existing in the prior art.

One end of the outer tube is connected with a grip, and the other end of the outer tube is fixed with a limiting sleeve, and the inner edge of the limiting sleeve is formed with a blocking portion, and the inner surface of the outer tube is formed with an inner ring pattern and an inner tube. A sliding foot pad is sleeved at one end, and an outer edge of the other end of the inner tube is formed with a convex portion, and the convex end of the inner tube is passed through the outer tube, so that the convex portion is restricted by the blocking portion of the limiting sleeve The inner tube is not separated, and the inner tube has a long groove extending through the middle portion. One end of the connecting rod is formed with a threaded portion, and the other end of the connecting rod is fixed with a rod sleeve, and the rod sleeve is laterally opened with a perforation, and the linkage rod The threaded end is inserted into the outer tube, and the rod end is inserted into the inner tube, and the connecting rod is sleeved on the outer surface of the inner tube, and a sleeve is inserted through the sleeve, and the bolt is passed through a long groove of the inner tube and a perforation of the rod sleeve, and a blocking piece is protruded from a middle portion of the linkage rod, and a pushing member forms a tapered surface at one end, and the other end of the pushing member is tightly inserted into the inner tube And the pusher member has a rod hole, so that the threaded end of the linkage rod can pass through the rod hole. A spring interposed between the pushing member and the flap, an expandable member defines a shaft hole, and the expansion sleeve member to the shaft hole provided in the linkage rod having One end of the threaded section is screwed to the threaded section by a nut to form a limit of the expansion member and the pushing member, and the expansion member extends a plurality of expansion pieces toward the pushing member, and the expansion piece is wrapped around the joint The rod and the outer edge of the end of the expanding piece are sleeved with a spring sleeve, and the elastic sleeve is pressed against the inner ring of the outer tube by pushing the tapered surface of the pushing piece and the expanding piece.

Wherein, the surface of the grip sleeve is formed with a ring groove, and a soft sleeve is sleeved at the ring groove, and the cover is shielded by the soft sleeve, and the hand grip sleeve is conveniently pushed and applied.

Wherein, the expansion member is formed with a first ring piece and a second ring piece at the expansion piece, and the first ring piece and the second ring piece form a clamping limit on the elastic sleeve.

Wherein, the pushing member protrudes from the middle portion with a ring portion, and the ring portion abuts against the nozzle of the inner tube.

Wherein, the outer tube and the limiting sleeve are respectively provided with an external thread and an internal thread, and the external thread and the internal thread form a screw lock.

Wherein, the sleeve has a screw hole in the axial direction, so that the linkage rod is screwed to the screw hole of the sleeve.

The first main purpose of the creation is that the cane is tensioned by the elastic force of the spring to normally pull the expansion member and the pushing member, and the elastic sleeve is expanded to abut the inner ring of the outer tube, thereby forming the outer tube and the inner tube. The length is fixed. When the user needs to extend the cane, the user can directly apply force to extend the inner tube outward, so that the inner tube directly drives the pushing member away from the expanding member, so that the elastic sleeve is no longer tightly pressed inside the outer tube. Further, the outer tube and the inner tube can be stretched without resistance, and when the length of the cane is to be shortened, the user can force the sleeve to push in the direction of the grip, and the expansion piece of the expansion member is separated from the cone of the pushing member. The shape of the surface, that is, the non-tight state of the outer tube and the inner tube can be formed, thereby making the length adjustment easy and labor-saving, so as to improve the convenience of use.

The second main purpose of the present invention is that the cane is urged by the elastic force of the spring at the blocking piece of the pushing member and the linking rod, so that the expanding member presses the tapered surface of the pushing member with the expanding piece, and the cone The shaped surface forms an outward expansion of the expansion piece, so that the elastic sleeve abuts against the inner ring of the outer tube, and when the user assists walking with the cane, the outer tube is linked to the expansion member to be pressed against the tapered surface of the pushing member. Therefore, the pushing member can further expand the expansion piece of the expansion member, that is, apply more weight to the grip, thereby improving the tightness between the elastic sleeve and the inner ring pattern, and further the rough texture through the inner ring pattern. The elasticity of the body with the elastic sleeve effectively increases the frictional resistance between the inner ring and the elastic sleeve, In order to improve the bonding strength between the outer tube and the inner tube, the auxiliary safety is improved.

The third main purpose of the creation is that the cane is tensioned by the elastic force of the spring to pull the expansion member and the pushing member normally, and is expanded by the elastic sleeve against the inner ring of the outer tube, thereby forming the outer tube and the inner tube. The length is fixed, because the tapered surface of the pushing member is axially disengaged from the expanding piece, and the contraction elastic force of the expanding piece and the elastic sleeve itself can easily pull the inner tube or push the holding sleeve, thereby simplifying and saving labor. The length adjustment is made to improve the ease of use.

Other objects, advantages and novel features of the present invention will become more apparent from the detailed description and the accompanying drawings.

[this creation]

10‧‧‧External management

11‧‧‧ grip

12‧‧‧ Limit set

121‧‧ ‧ blocking

122‧‧‧ internal thread

13‧‧‧ external thread

14‧‧‧ Inner ring pattern

20‧‧‧Inside

21‧‧‧Slip pads

22‧‧‧ convex

23‧‧‧Long slot

30‧‧‧ linkage rod

31‧‧‧Threaded section

32‧‧‧ rod sets

321‧‧‧ screw hole

322‧‧‧Perforation

33‧‧‧ Grip

331‧‧‧ Ring groove

34‧‧‧Latch

35‧‧‧soft cover

36‧‧ ‧Flap

40‧‧‧Pushing pieces

41‧‧‧Conical surface

42‧‧‧ Ring Department

43‧‧‧ rod holes

44‧‧‧ Spring

50‧‧‧ expansion parts

51‧‧‧Axis hole

52‧‧‧ nuts

53‧‧‧Expansion film

54‧‧‧ elastic sleeve

531‧‧‧First ring

532‧‧‧second ring

[study]

60‧‧‧canes

61‧‧‧ main pole

62‧‧‧ pole

70‧‧‧ telescopic positioning structure

71‧‧‧ sleeves

711‧‧‧ external thread section

712‧‧‧Support

72‧‧‧Expanding Actuators

721‧‧‧Flexible claws

80‧‧‧Cone seat

The first picture is a perspective view of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a cross-sectional view of the creation.

Figure 4 is a schematic diagram of the state of use of this creation (1).

Figure 5 is a schematic diagram of the state of use of this creation (2).

Figure 6 is a schematic diagram of the elongation of the creation (1).

Figure 7 is a schematic diagram of the creation of the extension action (2).

Figure 8 is a schematic diagram of the application of this creation to the action of descending stairs.

Figure 9 is a schematic diagram of the shortening action of this creation (1).

Figure 10 is a schematic diagram of the shortening action of this creation (2).

Figure 11 is a schematic diagram of the application of this creation to the stair climbing action.

Figure 12 is a schematic diagram of the present application applied to a sitting posture.

Figure 13 is a perspective exploded view of the prior art.

Figure 14 is a cross-sectional view of a conventional one.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following [Simplified Description of the Drawings] for details: First, please see the views shown in Figures 1 and 2. The telescopic adjustment positioning structure of the cane comprises: an outer tube 10, an inner tube 20, a linkage rod 30 and a pushing member 40, A stopper 11 is coupled to the other end of the outer tube 10, and a limiting sleeve 12 is fixed to the other end of the outer tube 10. The inner edge of the limiting sleeve 12 is formed with a blocking portion 121, and the outer tube 10 and the limiting sleeve 12 are respectively provided with a retaining sleeve 12. The external thread 13 and an internal thread 122 are screwed and fixed by the external thread 13 and the internal thread 122. The inner surface of the outer tube 10 is formed with an inner ring pattern 14, and the inner tube 20 is sleeved at one end. The mat 21 has a non-slip effect against the ground through the anti-slip mat 21, and the outer edge of the other end of the inner tube 20 is formed with a convex portion 22, and is disposed at the end of the convex portion 22 of the inner tube 20 through the outer tube 10. The convex portion 22 is restricted by the blocking portion 121 of the limiting sleeve 12 and cannot be separated, and the inner tube 20 is inserted through the long groove 23 at the middle portion. One end of the connecting rod 30 is formed with a threaded portion 31, and the connecting rod 30 is further A rod sleeve 32 is fixed at one end, and a screw hole 321 is defined in the axial direction of the rod sleeve 32. The linkage rod 30 is screwed to the screw hole 321 of the rod sleeve 32, and the rod sleeve 32 is laterally opened with a through hole 322. And the linkage rod 30 is inserted into the outer tube 10 at the end of the threaded portion 31, and is inserted into the inner tube 20 at the end of the rod sleeve 32, and the linkage rod 30 is The outer surface of the tube 20 is sleeved with a grip sleeve 33. The grip sleeve 33 is inserted through a latch 34, and the plug 34 is passed through the long slot 23 of the inner tube 20 and the through hole 322 of the sleeve 32, thereby forming the inner tube 20 and the rod. The sleeve 32 has a ring groove 331 formed on the surface of the sleeve 33, and a soft sleeve 35 is sleeved on the ring groove 331. The cover sleeve 34 is shielded by the soft sleeve 35, and is convenient for the hand. The grip sleeve 33 is urged to apply a force, and a stopper 36 is protruded from a middle portion of the linkage rod 30. A pusher member 40 is formed with a tapered surface 41 at one end, and is inserted into the other end of the pusher member 40. In the inner tube 20, the pushing member 40 has a ring portion 42 protruding from the middle portion, and the ring portion 42 abuts against the nozzle of the inner tube 20, thereby forming a tight fixing between the pushing member 40 and the inner tube 20. Further, the pushing member 40 defines a rod hole 43 for allowing the end of the threaded portion 31 of the linking rod 30 to pass through the rod hole 43. The spring member 44 and the extending member 50 are interposed between the pushing member 40 and the blocking piece 36. A shaft hole 51 is defined, and the expansion member 50 is sleeved at one end of the linkage rod 30 having the threaded portion 31 by a shaft hole 51, and is screwed to the thread portion 31 by a nut 52 to form the expansion member 50 and The expansion member 50 has a plurality of expansion pieces 53 extending in the direction of the pushing member 40, and the expansion piece 53 is surrounded by the linkage rod 30, and an elastic force is disposed on the outer edge of the end of the expansion piece 53. The sleeve 54 and the expansion member 50 are formed with a first ring piece 531 and a second ring piece 532 at the expansion piece 53, and the first ring piece 531 and the second ring piece 532 form a pair of elastic sleeves 54. The limit position is pushed by the tapered surface 41 of the pushing member 40 and the expanding piece 53 to press the elastic sleeve 54 against the inner ring 14 of the outer tube 10, thereby forming the length of the outer tube 10 and the inner tube 20 fixed. .

The combination of the structures is as shown in the first, second, and third figures. The rod sleeve 32 is locked to one end of the linkage rod 30 by a screw hole 321 , and the linkage rod 30 is inserted into the inner tube 20 with the rod sleeve 32 end. The end of the convex portion 22 is such that the through hole 322 of the rod sleeve 32 is aligned with the long groove 23 of the inner tube 20, and the limiting sleeve 12 is sleeved on the outer surface of the inner tube 20, so that the convex portion 22 of the inner tube 20 can be blocked. The retaining portion 121 of the limiting sleeve 12 is further sleeved on the inner tube 20, and simultaneously passes through the grip sleeve 33, the long slot 23 and the through hole 322 by the latch 34, thereby forming the grip sleeve 33 and the sleeve 32. The joint is fixed, and the grip sleeve 33 can be moved along the long groove 23 of the inner tube 20, and the soft sleeve 35 is sleeved on the ring groove 331 of the grip sleeve 33, and the anti-slip mat 21 is sleeved on the inner tube 20. The other end of the convex portion 22 is further placed by the end of the convex portion 22 of the inner tube 20, the spring 44 is sleeved on the linkage rod 30, and one end of the spring 44 is in contact with the blocking piece 36, and the pushing member is further pushed. 40, the rod hole 43 is sleeved on the linkage rod 30, and is pressed against the inner tube 20 by pressing, so that the tapered surface 41 of the pushing member 40 can be exposed to the inner tube 20, and the other end of the spring 44 is made to interfere with Pushing member 40, and then setting elastic sleeve 54 At the expansion piece 53 of the expansion member 50, and through the first ring piece 531 and the second ring piece 532, the elastic sleeve 54 is formed, and the expansion member 50 is sleeved at the linkage rod 30 by the shaft hole 51, so that the expansion The piece 53 faces the tapered surface 41 of the pushing member 40, and the nut 52 is locked at the threaded portion 31 of the linking rod 30, so that the fixing member 50 can be fixed at the linking rod 30, and the inner tube 20 is further disposed. The end of the expansion member 50 is inserted into the outer tube 10, and the external thread 10 of the outer sleeve 10 is locked by the internal thread 122 of the limiting sleeve 12, thereby preventing the inner tube 20 from being detached from the outer tube 10 by the end of the limiting sleeve 12, and finally The lock 11 is locked at the other end of the outer tube 10, and the combination of the structures can be completed by the above steps, but is not limited to a specific combination step.

For the actual use, please refer to FIG. 4 and FIG. 5 together with the figure shown in FIG. 2, the stick is pressed by the elastic force of the spring 44 to the blocking piece 40 and the blocking piece 36 of the linkage rod 30, so as to be linked. The rod 30 is normally pulled toward the anti-slip foot pad 21, thereby controlling the expansion member 50 to press the conical surface 41 of the pushing member 40 with the expansion piece 53, and the outward expansion of the expansion piece 53 by the conical surface 41 is formed. The elastic sleeve 54 is caused to abut against the inner ring 14 of the outer tube 10. When the user assists walking with the cane, the user moves the center of gravity of the body to the grip 11 of the cane, and the gravity is transmitted by the grip 11. To the outer tube 10, since the elastic sleeve 54 of the expansion member 50 abuts against the inner ring 14 of the outer tube 10, the outer tube 10 is caused to interlock the expansion member 50 against the tapered surface 41 of the pushing member 40, thereby allowing the top The pusher 40 can further extend the expansion piece 53 of the expansion member 50, that is, to apply more weight to the grip 11, thereby improving the tightness between the elastic sleeve 54 and the inner ring pattern 14, and further through the inner ring pattern. 14 rough lines The elasticity of the body of the elastic sleeve 54 effectively increases the frictional resistance between the inner ring pattern 14 and the elastic sleeve 54, thereby achieving the auxiliary walking function of the cane, thereby improving the auxiliary safety.

When the user needs to extend the cane, please view it from Fig. 6 and Fig. 7 together with the figure shown in Fig. 2. At this time, the user can hold the grip 11 or the outer tube 10 with one hand and the inner tube 20 with the other hand or Sliding the foot pad 21, and directly applying force to extend the outer tube 10 and the inner tube 20 outward, and no additional rotation or pressing action is required, that is, the purpose of the cane elongation can be achieved, and the stretching condition is further explained. When the inner tube 20 is elongated, the inner tube 20 can directly drive the pushing member 40 away from the expanding member 50, and the expanding member 50 can provide the annular groove 331 and the rod sleeve 32 because of the long groove 23 formed by the inner tube 20. The displacement, so that the linkage rod 30 and the expansion member 50 will not be synchronized with the inner tube 20, and because the tapered surface 41 of the pushing member 40 does not press the expansion piece 53, the elastic sleeve 54 is no longer tight. The inner ring 10 of the outer tube 10 can further stretch the outer tube 10 and the inner tube 20 without resistance, and the spring 44 pushes the linkage rod 30 regardless of the length and relaxes the inner tube 20, so that the expansion member 50 can re-extrude the pushing member 40 to form the length of the outer tube 10 and the inner tube 20, as shown in Fig. 8, the elongated cane In conjunction with the user's support assist when going down the stairs, the lengthless adjustment can be made through simple and labor-saving stretching, so that the user can adjust the cane to the appropriate length with the height and the stair class, so as to improve the convenience of the auxiliary use. When you want to shorten the length of the cane, please refer to Figures 9 and 10 again. The user can hold the grip 11 or the outer tube 10 with one hand, the inner tube 20 with the other hand, and the grip 33 with the two fingers. The force is applied to push the grip sleeve 33 toward the grip 11 . At this time, the grip sleeve 33 slides the interlocking latch 34 along the long slot 23 of the inner tube 20 , and the rod sleeve 32 drives the linkage rod 30 to the grip 11 . The end displacement causes the spring 44 to be slightly compressed, and the expansion piece 53 of the expansion member 50 is disengaged from the tapered surface 41 of the pushing member 40. At this time, the elastic sleeve 54 does not abut the inner ring 14 of the outer tube 10, thereby forming The non-tightening state of the outer tube 10 and the inner tube 20 can achieve the purpose of shortening the cane, and further, since the tapered surface 41 of the pushing member 40 is axially disengaged from the expansion piece 53, the expansion piece 53 and the elastic sleeve 54 are engaged. Its own contraction elasticity allows the user to easily push the grip 33, thereby simplifying The length of the force is reduced, and as shown in Figures 11 and 12, when the cane is shortened, it can be applied to the stairs. The user can quickly adjust to the appropriate length according to the arm length and the step height, or in the sitting position. When standing, the user can also use the shortened cane to assist the standing. According to the actual use state, the cane of the creation has a simple and labor-saving telescopic adjustment function, so that the user can easily and quickly adjust to Appropriate length, more capable It is suitable for the elderly who have less strength and less skill in use, so as to improve their convenience.

In summary, this creation has indeed achieved a breakthrough structural design, and has improved new content, while at the same time achieving industrial use and progress, and this creation is not seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, a new type of patent application is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

Only the above-mentioned ones are only preferred embodiments of the present invention, and the scope of the creation of the present invention cannot be limited thereto; that is, the equal changes and modifications made by the majority of the patent application scope of the present invention should still belong to the present invention. Within the scope of the patent.

10‧‧‧External management

11‧‧‧ grip

12‧‧‧ Limit set

121‧‧ ‧ blocking

122‧‧‧ internal thread

13‧‧‧ external thread

14‧‧‧ Inner ring pattern

20‧‧‧Inside

21‧‧‧Slip pads

22‧‧‧ convex

23‧‧‧Long slot

30‧‧‧ linkage rod

31‧‧‧Threaded section

32‧‧‧ rod sets

321‧‧‧ screw hole

322‧‧‧Perforation

33‧‧‧ Grip

331‧‧‧ Ring groove

34‧‧‧Latch

35‧‧‧soft cover

36‧‧ ‧Flap

40‧‧‧Pushing pieces

41‧‧‧Conical surface

42‧‧‧ Ring Department

43‧‧‧ rod holes

44‧‧‧ Spring

50‧‧‧ expansion parts

51‧‧‧Axis hole

52‧‧‧ nuts

53‧‧‧Expansion film

54‧‧‧ elastic sleeve

531‧‧‧First ring

532‧‧‧second ring

Claims (6)

The telescopic adjustment positioning structure of the cane comprises: an outer tube, the outer tube is connected with a grip at one end thereof, and the other end of the outer tube is fixed with a limiting sleeve, and the inner edge of the limiting sleeve is formed with a blocking portion; The inner surface of the outer tube is formed with an inner ring pattern; an inner tube is sleeved at one end with a slip-proof foot pad, and the outer edge of the other end of the inner tube is formed with a convex portion, and is formed by the inner tube The end of the convex portion is disposed on the outer tube, so that the convex portion is restricted by the blocking portion of the limiting sleeve and cannot be separated, and the inner tube has a long groove extending through the middle portion; and a connecting rod, a threaded portion is formed at one end of the connecting rod, and The other end of the linkage rod is fixed with a rod sleeve, and the rod sleeve is laterally opened with a through hole, and the linkage rod is threaded to the outer tube at the end of the threaded rod, and is inserted into the inner tube at the end of the rod sleeve, and the linkage rod The outer surface of the inner tube is sleeved with a grip sleeve, the sleeve is inserted through a pin, and the pin passes through the long groove of the inner tube and the perforation of the rod sleeve, and a blocking piece is protruded from the middle portion of the connecting rod; a pushing member having a tapered surface formed at one end and being pushed by the pushing member The end is tightly inserted into the inner tube, and the pushing member defines a rod hole, so that the threaded end of the linking rod can pass through the rod hole, and a spring is interposed between the pushing member and the blocking piece; and an expansion member The expansion member is provided with a shaft hole, and the expansion member is sleeved at one end of the linkage rod having the threaded portion, and the nut is screwed to the thread segment to form the limit of the expansion member and the pushing member, and The expansion member has a plurality of expansion pieces extending toward the pushing member, and the expansion piece is surrounded by the linkage rod, and an elastic sleeve is sleeved on the outer edge of the end piece of the expansion piece, and the tapered surface and the expansion piece of the pushing piece are Pushing each other, the elastic sleeve is pressed against the inner ring of the outer tube, and the length of the outer tube and the inner tube is fixed. The telescopic adjustment positioning structure of the cane according to claim 1, wherein a surface of the grip sleeve is formed with a ring groove, and a soft sleeve is sleeved at the ring groove, and the plug is shielded by the soft sleeve, and It is convenient to hold the sleeve to push the force. The telescopic adjustment positioning structure of the cane according to claim 1, wherein the expansion member is formed with a first ring piece and a second ring piece at the expansion piece, and the first ring piece and the second ring piece are formed. The sheet forms a limit on the clamping of the elastic sleeve. The telescopic adjustment positioning structure of the cane according to claim 1, wherein the pushing member has a ring portion protruding from the middle portion and the ring portion abuts against the nozzle of the inner tube. The telescopic adjustment positioning structure of the cane according to claim 1, wherein the outer tube and the limiting sleeve are respectively provided with an external thread and an internal thread, and the external thread and the internal thread form a screw lock. The telescopic adjustment positioning structure of the cane according to the first aspect of the patent application, wherein the sleeve has a screw hole in the axial direction, so that the linkage rod is screwed to the screw hole of the sleeve.