CN2782076Y - Anti-falling device of telescopic walking stick - Google Patents
Anti-falling device of telescopic walking stick Download PDFInfo
- Publication number
- CN2782076Y CN2782076Y CN 200520081349 CN200520081349U CN2782076Y CN 2782076 Y CN2782076 Y CN 2782076Y CN 200520081349 CN200520081349 CN 200520081349 CN 200520081349 U CN200520081349 U CN 200520081349U CN 2782076 Y CN2782076 Y CN 2782076Y
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- CN
- China
- Prior art keywords
- outer tube
- central shaft
- spring
- junction piece
- pipe
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- Expired - Fee Related
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Abstract
The utility model relates to an anti-falling device for telescopic walking sticks, which comprises an outer tube and an inner tube which are formed into two adjacent joints of a telescopic walking stick, wherein the lower end of the outer tube is sheathed on the outer circumference of the upper end of the inner tube; the upper end part of the inner tube is fixedly inserted with a junction piece; the middle of the junction piece is inserted with a central shaft which can slide up and down along the axial direction of the inner tube; the top end of the central shaft is connected and provided with a drum-shaped slide block which can slide up and down along an inner cavity of the outer tube; the bottom end of the drum-shaped slide block is connected and provided with a spring; the spring is sheathed on the outer circumference of the central shaft; the bottom end of the spring is connected with a clamping block; the clamping block can be slidably sheathed on the outer part of the central shaft; the lower end of the clamping block is downwards and outwards extended to form a plurality of wing panels; the relevant position of the inner wall of the outer tube is provided with an annular clamping groove; the shapes of the wing panels are matched with the clamping groove. Deflection can not occur between the inner tube and the outer tube to ensure that the utility model telescopes freely. When the utility model is stretched, because the utility model is provided with a buffering structure, an impact force between the inner tube and the outer tube is decreased. The joint of the inner tube and the outer tube can not have faults.
Description
Technical field
This utility model relates to the accessory structure of crutch, is meant that specifically scalable crutch prevents the device that comes off mutually between each joint.
Background technology
With reference to Fig. 1, cross-sectional view for scalable crutch anti-drop device in the prior art, comprise outer tube 101, interior pipe 201 and collar 111, in pipe 201 be provided with a flange 211 near upper end, its flange 211 external diameters can cooperate with the internal diameter of outer tube 101 and are inserted in, collar 111 is coated on the periphery of outer tube 101 and interior pipe 201 junctions, the first half internal perisporium of this collar 111 is fixedlyed connected with the outer peripheral face of outer tube 101, and the internal diameter of the latter half approximates the external diameter of interior pipe 201, therefore, when interior pipe 201 slides in outer tube 101, the flange 211 of interior pipe 201 peripheries can rely on the top edge of these collar 111 the latter halfs, comes off from outer tube 101 with pipe 201 in preventing.
There is following shortcoming in said structure: one, owing to there is bigger space between the internal perisporium of interior pipe 201 upper end periphery walls and outer tube 101, cause mutual beat between two pipes easily, and finally cause flexible obstacle; Two, when crutch stretched, the impulse force between two pipes was bigger, easily caused the junction to damage; Three, these flange 211 inwalls frequent and outer tube 101 rub, and cause these flange wearing and tearing and finally can't play the effect that restriction comes off; Four, collar 111 often is subjected to the pulling force effect of flange 211 and causes coming off with outer tube 101.
Therefore, scalable crutch anti-drop device exists and remains improved shortcoming in the prior art.
The utility model content
This utility model provides a kind of anti-drop device of scalable crutch, its main purpose is to overcome existing scalable crutch because the anti-drop device structural design is unreasonable, thereby easily mutual beat causes flexible obstacle, the defective that impulse force caused the junction to damage more greatly and easily between the 2-section pipe when crutch stretched between the 2-section pipe.
The technical solution of the utility model one: the anti-drop device of scalable crutch, comprise the outer tube and the interior pipe that form adjacent two joints of scalable crutch, pipe upper end periphery in the outer tube lower end is sheathed on, an intrinsic junction piece is inserted in interior pipe upper end, be inserted with a central shaft that can slide up and down along interior tubular axis in the middle of this junction piece, this central shaft top is provided with a drum shape slide block that can slide up and down along outer tube bore, this drum shape slide block bottom is provided with a spring, this spring housing is located at the central shaft periphery, the spring bottom is connected with a clamping block, this clamping block is sheathed on outside the central shaft slidably, its lower ends downward, stretch out and form several fins, the outer tube wall relevant position is provided with an annular slot, the shape of the longitudinal section of this slot is similar to a right angle triangle, its lower wall is a right-angle side, and its upper side wall is a hypotenuse, and the shape of aforementioned fin and this slot are suitable.This kind structure makes the assembling between two pipes be very easy to, and behind fin process slot, still can upwards slide, and can't pass through this slot when lower slider, therefore reaches the effect of slip-off preventing; And when the stretching crutch, the structure of this spring and drum shape slide block plays cushioning effect, reduces the impulsive force between interior pipe, the outer tube, thereby more not fragile; In making, the cooperation of central shaft, drum shape slide block and junction piece beat can not take place between pipe, the outer tube, and smooth and easy to guarantee stretching.
The side face of pipe fits in the inner peripheral surface of outer tube in aforementioned, and the diameter of pipe head portion was identical with interior external diameter of pipe in described junction piece exposed to.
The technical solution of the utility model two: the anti-drop device of scalable crutch, comprise the outer tube and the interior pipe that form adjacent two joints of scalable crutch, pipe upper end periphery in the outer tube lower end is sheathed on, an intrinsic junction piece is inserted in interior pipe upper end, be inserted with a central shaft that can slide up and down along interior tubular axis in the middle of this junction piece, this central shaft top is provided with a drum shape slide block that can slide up and down along outer tube bore, this drum shape slide block bottom is provided with a spring, this spring housing is located at the central shaft periphery, the spring bottom is connected with a clamping block, this clamping block is sheathed on outside the central shaft slidably, this clamping block bottom to around extend to form an annular lip, outer tube perisporium relevant position inwardly protrudes out the snap ring that formation one can contact at this annular lip below, reaches the effect of slip-off preventing with this; And when the stretching crutch, the structure of this spring and drum shape slide block plays cushioning effect, reduces the impulsive force between interior pipe, the outer tube, thereby more not fragile; In making, the cooperation of central shaft, drum shape slide block and junction piece beat can not take place between pipe, the outer tube, and smooth and easy to guarantee stretching.
Aforesaid outer tube, interior pipe joint place periphery are coated with a collar.
The technical solution of the utility model three: the anti-drop device of scalable crutch, comprise the outer tube and the interior pipe that form adjacent two joints of scalable crutch, pipe upper end periphery in the outer tube lower end is sheathed on, an intrinsic junction piece is inserted in interior pipe upper end, be inserted with a central shaft that can slide up and down along interior tubular axis in the middle of this junction piece, this central shaft top is provided with a drum shape slide block that can slide up and down along outer tube bore, this drum shape slide block bottom is provided with a spring, this spring housing is located at the central shaft periphery, the spring bottom links to each other with aforesaid junction piece, aforementioned drum shape slide block periphery middle part stretches out and forms a collar flange, outer tube perisporium relevant position inwardly protrudes out the snap ring that formation one can contact at this annular lip below, reaches the effect of slip-off preventing with this; And when the stretching crutch, the structure of this spring and drum shape slide block plays cushioning effect, reduces the impulsive force between interior pipe, the outer tube, thereby more not fragile; In making, the cooperation of central shaft, drum shape slide block and junction piece beat can not take place between pipe, the outer tube, and smooth and easy to guarantee stretching.
Aforesaid outer tube, interior pipe joint place periphery are coated with a collar.
By above-mentioned description to this utility model structure as can be known, compare, the utlity model has following advantage with prior art: one, between the inner and outer pipe beat can not take place, capable of expansion and contraction to guarantee it; Two, during stretching,, reduced the impulsive force between the inner and outer pipe owing to have buffer structure, the junction more is difficult for breaking down.
Description of drawings
Fig. 1 is the cross-sectional view of scalable crutch anti-drop device in the prior art;
Fig. 2 is the cross-sectional view of this utility model embodiment one full extension;
Fig. 3 is the cross-sectional view of this utility model embodiment one contraction process;
Fig. 4 is the schematic perspective view of this utility model embodiment one internal structure;
Fig. 5 is the cross-sectional view of this utility model embodiment two;
Fig. 6 is the cross-sectional view of this utility model embodiment three.
The specific embodiment
Concrete enforcement one of the present utility model, referring to figs. 1 through Fig. 4, comprise the outer tube 11 and the interior pipe 10 that form adjacent two joints of scalable crutch, pipe 10 upper end peripheries in outer tube 11 lower ends are sheathed on, an intrinsic junction piece 19 is inserted in interior pipe 10 upper ends, be inserted with a central shaft 14 that can axially slide up and down along interior pipe 10 in the middle of this junction piece 19, these central shaft 14 tops are provided with a drum shape slide block 12 that can slide up and down along outer tube 11 inner chambers, these drum shape slide block 12 bottoms are provided with a spring 13, this spring 13 is sheathed on central shaft 14 peripheries, spring 13 bottoms are connected with a clamping block 15, this clamping block 15 is sheathed on outside the central shaft 14 slidably, its lower ends downward, stretch out and form several fins 17, outer tube 11 inwall relevant positions are provided with an annular slot 16, and the shape of the longitudinal section of this slot 16 is similar to a right angle triangle, and its lower wall is a right-angle side, its upper side wall is a hypotenuse, and the shape of aforementioned fin 17 and this slot 16 are suitable.
Assembling in this kind structure makes between pipe 10, the outer tube 11 is very easy to, and behind fin 17 process slots 16, still can upwards slide, and can't pass through this slot 16 when lower slider, reaches the effect of slip-off preventing with this; And when the stretching crutch, the structure of this spring 13 and drum shape slide block 12 plays cushioning effect, the impulsive force in reducing between pipe 10, the outer tube 11, thereby more not fragile; In making, the cooperation of central shaft 14, drum shape slide block 12 and junction piece 19 beat can not take place between pipe 10, the outer tube 11, and smooth and easy to guarantee stretching.
The side face of pipe 10 fits in the inner peripheral surface of outer tube 11 in aforementioned, and the diameter of pipe 10 head portions was identical with interior pipe 10 external diameters in junction piece 19 exposed to, and the junction periphery of interior pipe 10, outer tube 11 is coated with a collar 18.
Embodiment one of the present utility model, with reference to Fig. 5, comprise the outer tube 11 and the interior pipe 10 that form adjacent two joints of scalable crutch, pipe 10 upper end peripheries in outer tube 11 lower ends are sheathed on, an intrinsic junction piece 19 is inserted in interior pipe 10 upper ends, be inserted with a central shaft 14 that can axially slide up and down along interior pipe 10 in the middle of this junction piece 19, these central shaft 14 tops are provided with a drum shape slide block 12 that can slide up and down along outer tube 11 inner chambers, these drum shape slide block 12 bottoms are provided with a spring 13, this spring 13 is sheathed on central shaft 14 peripheries, spring 13 bottoms are connected with a clamping block 21, this clamping block 21 is sheathed on outside the central shaft 14 slidably, these clamping block 21 bottoms to around extend to form an annular lip 210, outer tube 11 perisporium relevant positions inwardly protrude out and form a snap ring 20 that can contact at these annular lip 210 belows, reach the effect of slip-off preventing with this; And when the stretching crutch, the structure of this spring 13 and drum shape slide block 12 plays cushioning effect, the impulsive force in reducing between pipe 10, the outer tube 11, thereby more not fragile; In making, the cooperation of central shaft 14, drum shape slide block 12 and clamping block 21, junction piece 19 beat can not take place between pipe 10, the outer tube 11, and smooth and easy to guarantee stretching.
Specific embodiment of the utility model three, with reference to Fig. 6, comprise the outer tube 11 and the interior pipe 10 that form adjacent two joints of scalable crutch, pipe 10 upper end peripheries in outer tube 11 lower ends are sheathed on, an intrinsic junction piece 19 is inserted in interior pipe 10 upper ends, be inserted with a central shaft 14 that can axially slide up and down along interior pipe 10 in the middle of this junction piece 19, these central shaft 14 tops are provided with a drum shape slide block 12 that can slide up and down along outer tube 11 inner chambers, these drum shape slide block 12 bottoms are provided with a spring 13, this spring 13 is sheathed on central shaft 14 peripheries, spring 13 bottoms link to each other with aforesaid junction piece 19, aforementioned drum shape slide block 12 peripheries middle part stretches out and forms a collar flange 23, outer tube 11 perisporium relevant positions inwardly protrude out the snap ring 22 that formation one can contact at these annular lip 23 belows, reach the effect of slip-off preventing with this; And when the stretching crutch, the structure of this spring 13 and drum shape slide block 12 plays cushioning effect, the impulsive force in reducing between pipe 10, the outer tube 11, thereby more not fragile; In making, the cooperation of central shaft 14, drum shape slide block 12 and junction piece 19 beat can not take place between pipe 10, the outer tube 11, and smooth and easy to guarantee stretching.
Above-mentioned only is two specific embodiments of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that this utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading this utility model protection domain.
Claims (6)
1, the anti-drop device of scalable crutch, comprise the outer tube and the interior pipe that form adjacent two joints of scalable crutch, pipe upper end periphery in the outer tube lower end is sheathed on, it is characterized in that: an intrinsic junction piece is inserted in interior pipe upper end, be inserted with a central shaft that can slide up and down along interior tubular axis in the middle of this junction piece, this central shaft top is provided with a drum shape slide block that can slide up and down along outer tube bore, this drum shape slide block bottom is provided with a spring, this spring housing is located at the central shaft periphery, the spring bottom is connected with a clamping block, this clamping block is sheathed on outside the central shaft slidably, its lower ends downward, stretch out and form several fins, the outer tube wall relevant position is provided with an annular slot, the shape of the longitudinal section of this slot is similar to a right angle triangle, its lower wall is a right-angle side, and its upper side wall is a hypotenuse, and the shape of aforementioned fin and this slot are suitable.
2, the anti-drop device of scalable crutch as claimed in claim 1 is characterized in that: the side face of pipe fits in the inner peripheral surface of outer tube in described, and the diameter of pipe head portion was identical with interior external diameter of pipe in described junction piece exposed to.
3, the anti-drop device of scalable crutch, comprise the outer tube and the interior pipe that form adjacent two joints of scalable crutch, pipe upper end periphery in the outer tube lower end is sheathed on, it is characterized in that: an intrinsic junction piece is inserted in interior pipe upper end, be inserted with a central shaft that can slide up and down along interior tubular axis in the middle of this junction piece, this central shaft top is provided with a drum shape slide block that can slide up and down along outer tube bore, this drum shape slide block bottom is provided with a spring, this spring housing is located at the central shaft periphery, the spring bottom is connected with a clamping block, this clamping block is sheathed on outside the central shaft slidably, this clamping block bottom to around extend to form an annular lip, outer tube perisporium relevant position inwardly protrudes out and forms a snap ring that can contact at this annular lip below.
4, the anti-drop device of scalable crutch as claimed in claim 3 is characterized in that: described outer tube, interior pipe joint place periphery are coated with a collar.
5, the anti-drop device of scalable crutch, comprise the outer tube and the interior pipe that form adjacent two joints of scalable crutch, pipe upper end periphery in the outer tube lower end is sheathed on, it is characterized in that: an intrinsic junction piece is inserted in interior pipe upper end, be inserted with a central shaft that can slide up and down along interior tubular axis in the middle of this junction piece, this central shaft top is provided with a drum shape slide block that can slide up and down along outer tube bore, this drum shape slide block bottom is provided with a spring, this spring housing is located at the central shaft periphery, the spring bottom links to each other with aforesaid junction piece, aforementioned drum shape slide block periphery middle part stretches out and forms a collar flange, and outer tube perisporium relevant position inwardly protrudes out the snap ring that formation one can contact at this annular lip below.
6, the anti-drop device of scalable crutch as claimed in claim 5 is characterized in that: described outer tube, interior pipe joint place periphery are coated with a collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520081349 CN2782076Y (en) | 2005-01-24 | 2005-01-24 | Anti-falling device of telescopic walking stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520081349 CN2782076Y (en) | 2005-01-24 | 2005-01-24 | Anti-falling device of telescopic walking stick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782076Y true CN2782076Y (en) | 2006-05-24 |
Family
ID=36767071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520081349 Expired - Fee Related CN2782076Y (en) | 2005-01-24 | 2005-01-24 | Anti-falling device of telescopic walking stick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782076Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686743B (en) * | 2007-07-03 | 2011-08-10 | 雷克体育公众有限公司 | Stick with a shock absorber |
| CN110013694A (en) * | 2019-03-07 | 2019-07-16 | 安溪坤祁德机械科技有限公司 | High-concentration desulfurized organic pharmacy wastewater treatment equipment |
| CN111744312A (en) * | 2020-07-22 | 2020-10-09 | 张盼盼 | Flue gas is from inhaling formula environment-friendly gas cleaning device |
-
2005
- 2005-01-24 CN CN 200520081349 patent/CN2782076Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101686743B (en) * | 2007-07-03 | 2011-08-10 | 雷克体育公众有限公司 | Stick with a shock absorber |
| CN110013694A (en) * | 2019-03-07 | 2019-07-16 | 安溪坤祁德机械科技有限公司 | High-concentration desulfurized organic pharmacy wastewater treatment equipment |
| CN111744312A (en) * | 2020-07-22 | 2020-10-09 | 张盼盼 | Flue gas is from inhaling formula environment-friendly gas cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060524 Termination date: 20100224 |