CN104546385B - Adjust the telescope stick of height in good time with purely mechanic button switch - Google Patents

Abstract

A kind of purely mechanic button switch of band adjusts the telescope stick of height in good time, and the crutch can be Oxter crutch or hand-held crutch.Button is pushed down with finger, synchronously pushes handle, the crutch is shortened, height reduction, release button, and height is kept；Button is pushed down with finger, handle does not apply the external force being pressed downward, and the crutch is elongated, and height increases, and release button, highly keeps constant；In button release conditions, handle is pushed, now crutch height condition is in locking, therefore, highly constant.Obtain a kind of crutch that is safe and reliable, simple to operate, convenient, in good time, efficiently adjusting height of the crutch height to pedestrian's needs using the crutch, to lower limb are incomplete and action is inconvenient or the pedestrian of moving difficulty upper ladder step or provides great convenience when stand and wanting and be sitting in than stand low position again from level road, them are allowed to walk more to have dignity.

Description

Adjust the telescope stick of height in good time with purely mechanic button switch

Technical field

The present invention relates to the telescope stick that a kind of purely mechanic button switch of band adjusts height in good time, the crutch can be Oxter crutch or hand-held crutch；It is used to adjust the gas spring of the crutch height the invention further relates to a kind of, especially It is related to the piston machine locking mechanism of the internal piston component of the gas spring；The invention further relates to a kind of crutch to pass through The user of the crutch is pushed with a finger and pins mechanical switch button, is synchronously grasped handle and is pushed down on lower section The convenience of retractor device, in good time, simply, efficiently adjust the height that the crutch height needs to the pedestrian using the crutch Degree and the finger discharge the mechanical push button switch and keep the crutch application method of the now height of the crutch；It is a kind of The walking aid device of pedestrian.

Background technology

Crutch is a kind of walking aid device of pedestrian, and conventional has two kinds of Oxter crutch and hand-held crutch.Oxter crutch supplies Lower limb are incomplete and inconvenient person's walking of taking action uses, and hand-held crutch provides stable center of gravity or labour-saving walk help utensil for pedestrian. Existing crutch has adjustable length and non-adjustable two kinds.

Social constantly progressive, leg has limb incompleteness, inconvenient, oldaged physically weak the personnel that take action to go out foot traffic demand not Disconnected increase.It is well known that ladder ladder step is in 16cm or so, people stand want to be sitting on stool when, it is to have height that people, which stands and sat down, Degree difference, the difference in height is because of individual different differences, the pedestrian of the outgoing foot traffic, walk level road again on ladder Ladder step is stand when thinking bencher, just becomes extremely difficult using the crutch of the nonadjustable sustained height of length, or even can not be real It is existing.Therefore, a kind of adjustable length, the crutch of alterable height are personnel's steps that there are incomplete limb, action inconvenience, oldaged physically weak in leg In demand walking aid device is moved in walking.

Existing length-adjustable Oxter crutch, there is handle to, apart from adjustable in length, also having handle to ground between armpit support Between distance length it is adjustable.

Handle to the adjustable crutch of armpit support gap length have threaded adjustment, rigid material spring adjustment, have top pressure Compression spring ejection boss stretch out the adjustment of positioning hole difference hole position, be respectively provided with two free type gas springs in two stands bar Several adjustment modes of upper adjustment, further, the crutch have threaded adjustment, rigid material spring adjustment, have top pressure pressure Several adjustment modes that power spring ejection boss stretches out the adjustment of positioning hole difference hole position can not be adjusted in good time in use, nothing Method meet the pedestrian walk level road again on ladder ladder step or stand think bencher when use in crutch needs in good time adjustment grow The requirement of degree or height.It is respectively provided with the adjustment mode that two controllable type gas springs adjust on two stands bar, such as patent No. ZL200620074392.7 and it is authorized described in publication number CN2933380Y, is pushed when from level land top bar and pin opening on handle Close, by the gravity of the people of user, apply pressure to armpit support, the lower pressure with the oxter in armpit support and be transferred to piston Bar, handle to distance between armpit support is shortened, realize that height adjusts, herein some problems be it will be apparent that first, it is many eventually It is well known, the armpit of people have critically important nervus vasculairs clump by, be can not be used for applying it is stressed, using crutch personnel all It is armrest handle, the support of human body weight is realized using the arm strength of the arm of people；Secondly, the distance of hand and oxter is that have Limit, ladder ladder minister degree is 16cm, is calculated with short length 16cm, and piston stroke 16cm gas spring adds the company at both ends Connection device, along with the size of armpit support is at least in more than 40cm, two controllable types are respectively provided with when the distance of hand and oxter is less than Gas spring be able to can not be installed in minimum dimension needed for installation on two stands bar because of the controllable type gas spring；Again, hand Controlling switch is installed on handle, very big inconvenience can be brought to the use of handle, or may be malfunctioned, even may not；Further, The elastic force of conventional controllable type gas spring is changeless, and the gas of piston rod elongation pushes away when the controlling switch is opened It is equal that power shortens required pressure with piston rod retraction, the gas spring when piston component does not increase locking mechanism The latching force that closing control switchs after piston rod elongation is uncertain or insecure, the patent No. Several bad results occur in the device of " ZL200620074392.7 " installation gas spring, and piston rod can support human body when extending Required weight and when pushing back shortening, the piston rod does not bounce back, when piston rod can push back shortening and extend, it is impossible to supports Manpower body weight, walking get up to rise (can fall down) of drop suddenly suddenly, when piston rod can push back shortening and extend, can support people's body weight Amount, it may appear that accidental bust causes security incident；Further, crutch often uses out of doors, when the controllable type gas of the crutch Spring insolation under burning sun, conventional controllable type gas spring do not have pressure protective device, according to equation of gaseous state P1*V1/T1= P2*V2/T2, the proportional increase of gases at high pressure of the gas spring cylinder intracavitary, controllable type gas spring now have blast It is dangerous.

For handle to the adjustable crutch of distance length between ground, conventional has threaded adjustment, rigid material spring tune It is whole, there is top pressure compression spring ejection boss to stretch out the adjustment of positioning hole difference hole position, waste time and energy during adjustment, can not also meet The pedestrian walk level road again on ladder ladder step or stand think bencher when use in crutch need adjustment length or height in good time The requirement of degree.

The content of the invention

The purpose of the present invention is：The telescope stick that a kind of purely mechanic button switch of band adjusts height in good time is provided；There is provided An a kind of finger, which pushes, pins mechanical switch button, synchronously grasps the side that handle pushes down on the retractor device of lower section Just the height that the crutch height needs to the pedestrian using the crutch, the finger, in good time, simply, are efficiently adjusted Discharge the mechanical push button switch and keep the crutch application method of the now height of the crutch；One kind is provided to turn for adjustment The piston machine locking mechanism of the internal piston component of cane height, locking controllable gas spring.

The technical scheme is that a kind of crutch has two kinds of forms of Oxter crutch and hand-held crutch.Oxter crutch is in Between connector, mounted in intermediate connector upper end be used for support upper element of the human body with handle and armpit support, mounted in intermediate connector The lower component that lower end is used for ground supports is formed；The upper element has an armpit support, and a bullet is cased with above the armpit support Property armpit support sheath made of material, have two holes below the armpit support, described two holes be mounted with respectively in have reinforcement The light rigid materials pipe of material, the pipe other end have multiple equidistant through holes, the circle upwards successively by end The corresponding mounting hole on pipe other end insertion intermediate connector, and insert the locking of screw rod pin admittedly by the through hole of end to the pipe It is fixed, the handle that a surface has elastomeric material is equiped between two pipes of intermediate connector, the handle has one Centre bore, a radicle has platform cone material of the cross recess diameter more than the through hole of the pipe and the other end has external screw thread Axle, the axle pass through a pipe the through hole, be then passed through the handle center hole, by another pipe with height The through hole pass, the nut check of a plum blossom-shaped is installed on the other end screw rod of the axle thereafter；The lower component There is controllable type gas spring of the internal piston component with mechanical lock mechanism, the piston rod of the gas spring is described in There is external screw thread the central through hole of intermediate connector, the piston rod end, in the intermediate connector upper and lower surface and the work The having of stopper rod installs two nuts and is fixed and positions on externally threaded screw rod, the piston rod is outside cylinder body in distal end The heart has the control shaft of the gas spring protruded out outside one, and the part that the control shaft stretches out pistons end is threaded spiral shell Bar, a mushroom control button is installed on the screw rod, and the gas spring stretches out the other end in opposite direction with piston rod Bottom centre's installing one is used for the abrasive rubber support Non-slip material contacted with ground supports.Hand-held crutch is by lower component and handle Form, the lower component of hand-held crutch is identical with the lower component of Oxter crutch, and handle has a screwed hole, the handle spiral shell Pit is connected with the screw rod of piston rod front end, and the screwed hole upper end has greater diameter than the big logical of mushroom head button diameter Hole, the upper surface of the mushroom head button are less than the upper surface 2mm to 3mm of the large through-hole, and a finger pins mushroom head button, Handle is firmly pressed downward simultaneously, you can the height of the hand-held crutch of adjustment, the finger is unclamped, after discharging mushroom head button, institute It is highly locked to state hand-held crutch.

The invention further relates to a kind of gas spring, the gas spring has an independent unidirectional charge valve, passes through institute The gases at high pressure of the Gas spring cylinder intracoelomic cavity can be filled with and discharge in good time by stating unidirectional charge valve；The gas spring has Unidirectional, pressure adjustable the one-way relief valves to be interlinked with the inner chamber of cylinder block at piston both ends, can pass through the one-way safety Valve automatically, constantly by the overload high pressure more than safe gas pressure set in advance of the inner chamber of cylinder block of the gas spring Pressure relief of gas is to safe gas pressure set in advance；The gas spring, which is additionally provided with, prevents piston rod main shaft opposing cylinder from making Coaxial inner conductor circle rotation and the gas spring for preventing moving piston bar dust from entering；The gas spring is provided with and piston group The supporting mechanical lock mechanism of part, piston elongation and release control button are effectively ensured, by piston group after closing control valve Part and piston rod are locked in current location and are not pressed into.

The beneficial effects of the invention are as follows：There is provided it is a kind of it is safe and reliable, simple to operate, convenient, in good time, efficiently Adjust the crutch for the height that the crutch height needs to the pedestrian using the crutch.At present, sell and use on the market The crutch that person is just using, generally all it is the crutch that adjustment height in good time can not be carried out during use, this is to lower limb are incomplete and row Dynamic inconvenient or moving difficulty pedestrian from level road again on ladder step or stand want to be sitting in than stand low position when band Great difficulty is carried out, may even not realize；Currently participate in that the R＆D intensity of this work is inadequate, do not cause enough weights Depending on, there are a small number of technical staff or unit to carry out some and attempted (as described in [0005]), sell on the market and user is usable, The crutch for meeting to carry out during use adjustment height in good time has not yet seen.Invention applies a kind of brand-new, band machine The controllable type gas spring device of tool lock function, the gas spring device is arranged on to the most suitable position of crutch, and Carried out the optimization in operation and application method and its structure, obtain it is a kind of it is safe and reliable, simple to operate, convenient, Crutch that is in good time, efficiently adjusting the height that the crutch height needs to the pedestrian using the crutch, it is residual to lower limb Lack and action is inconvenient or the pedestrian of moving difficulty upper ladder step or stands again from level road and wants to be sitting in than stand low position When provide great convenience, allow them to walk more to have dignity.

Brief description of the drawings

Fig. 1 is the Oxter crutch structural representation of the present invention.

Fig. 2 is that Fig. 1 forward sights cross axle center plan cross-sectional view schematic diagram.

Fig. 3 is the piston component mechanical lock structure schematic diagram of figure gas spring.

Fig. 4 is projection view schematic diagram on the left of Fig. 1.

Fig. 5 is that Fig. 4 forward sights cross axle center plan cross-sectional view schematic diagram.

Fig. 6 is the hand-held crutch structure schematic diagram of figure.

Fig. 7 is that Fig. 6 forward sights cross axle center plan cross-sectional view schematic diagram.

Fig. 8 is Fig. 6 rightmost projection view schematic diagrames.

Fig. 9 is that Fig. 8 forward sights cross axle center plan cross-sectional view schematic diagram.

Figure 10 is figure TB P to projection view schematic diagram.

Embodiment

What the present invention was realized in：Fig. 1, Fig. 2 are Oxter crutch structural representations, Oxter crutch by intermediate connector 1, It is used to support human body with handle and the upper element of armpit support 2, mounted in intermediate connector lower end to be used for mounted in intermediate connector upper end The lower component 3 of ground supports is formed.Fig. 6 is hand-held crutch structure schematic diagram, holds crutch by lower component E1 and handle TB Form.The structure of hand-held crutch is more relatively easy than the structure of Oxter crutch, holds the lower component E1 and Oxter crutch of crutch The structure of lower component 3 is entirely the same, and simply the stroke of the piston rod of the E1 can be larger.

As shown in Figure 1, Figure 2 shown in Oxter crutch structural representation, Oxter crutch is by intermediate connector 1, upper element 2, bottom Component 3 is formed；The upper element 2 has an armpit support 21, and the armpit support 21 is cased with armpit support made of an elastomeric material above Sheath 22, the armpit support 21 have two holes below, described two holes be mounted with respectively in have the lightweight of reinforcement material firm Property material pipe 23,24, described 23,24 other ends have multiple through holes 29 at equal intervals upwards successively by end, the pipe 23, The corresponding mounting hole on 24 other ends insertion intermediate connector, and the through hole 29 to the pipe 23,24 by end inserts key-bolt Nail 210 is locked, and a surface is equiped between the pipe 23,24 of intermediate connector 1 two with elastomeric material Handle 26, the handle 26 have a centre bore, and a radicle has cross recess diameter more than the through hole 28 of the pipe Platform bores material and the threaded axle 25 of the other end, the axle 25 pass through the through hole 28 of a pipe 24, is then passed through described The centre bore of handle 26, passed by another level through hole 28 of pipe 23, thereafter in the other end of the axle 25 The nut 27 that a plum blossom-shaped is installed on screw rod is locked；The lower component 3 has an internal piston component band mechanical lock mechanism Controllable type gas spring, the piston rod 33 of the gas spring passes through the central through hole of the intermediate connector 1, the piston There is external screw thread the end of bar 33, is filled in the upper and lower surface of intermediate connector 1 and having for the piston rod 33 on externally threaded screw rod If two nuts 34,35 are fixed and positioned, the piston rod 33 has what is protruded out outside one from the center of distal end outside cylinder body The control shaft 32 of the gas spring, the part that the control shaft 32 stretches out the end of piston rod 33 is threaded screw rod, described A mushroom control button 31 is installed on screw rod, the gas spring stretches out the other end bottom in opposite direction with piston rod 33 Center installing one is used for the abrasive rubber support Non-slip material 36 contacted with ground supports.28 each pitch of holes and described 29 each holes Spacing is equal, change the axle 25 through the centre bore of handle 26 on 23,24 28 hole position position, you can regulation handle is between armpit support Distance, realize fine setting using crutch comfort level, the pitch-row of 29 corresponding stationary positioned of synchronous change, realize the same of button position Step change.

As shown in Figure 1, Figure 2 shown in Oxter crutch structural representation, tongue and the inner circle of positioning pipe 312 on keeper 311 is cylindrical On groove match prevent piston rod from rotating；38 be inflation check valve, and 37,39 be that the inner chamber of cylinder block at piston both ends communicates respectively One-way relief valves even；Fig. 3 is the gas spring piston Mechanical locking features schematic diagram of lower component 3, when press push button 31, control Product 32 is depressed, and 313 valve elements are opened by 32 pressures, 313 valve elements, and the gas connected with the compression endoporus of locking piece 321 passes through solution The through hole of latch fitting 318 (has some through holes) on unlock piece, into the inner via hole of elongation Lock spring base 315,314, enter back into work Centre bore is filled in, is then connected with 323, further, gas connection in whole cavity in cylinder body, pressure is equal, 313 valve element top pressure solutions The boss top pressure ball 319,319 of latch fitting 318,318 leaves the compression tapered slope of locking piece 321 into free state, compression locking quilt Unblock, 318 tapered slope leave ball 316, stretch out locking and are unlocked, now, if handle 26 without the downward pressure of application, Cylinder inner high voltage gas is applied to the power that 321 end cavitys act on piston has tailpiece of the piston rod direction to be applied to more than what 323 normal opens connected Power on piston, piston rod 33 stretch out elongated, and crutch highly increases, if handle 26, which applies one, is more than what the piston freely extended When power is pressed downward, piston rod 33, which is pressed into, to shorten, crutch height reduction；When release button 31, control piece 32 is released, valve element 313 are released closing, and piston center hole is blocked by valve element 313, and the gases at high pressure at piston both ends are blocked isolation, inner chamber of cylinder block quilt Piston is separated into two independent cavitys of high-pressure gas, now, high in cylinder if handle 26 is without applying downward pressure Body of calming the anger is applied to the power that 321 end cavitys act on piston has the extreme direction of piston rod 33 to be applied to piston more than what 323 normal opens connected On power, piston and the cavity that piston rod 33 often connects because by the pressure to arrive to the piston other end cavity produce one it is anti- Active force is applied to by piston to be withstood the inclined-plane of steel ball 316,318 and is pressed by from opposite direction on 314,315 spring leaf Power and tightly push down steel ball 316,316 are tightly pressed against on the internal chamber wall of cylinder body 310, realize gas spring release locking, if handle 26 When application one is pressed downward more than the power that the piston freely extends, piston is with 321 cavitys often connected because by arrival to the work Plug other end chamber pressure, which produces a reaction force and is applied directly on 320 spring leaf, withstands steel ball 319, due to from applying The downward pressure of handle 26 is added in act directly on piston rod, the downward pressure is acted on piston, by 314, 315th, 317 it is delivered on 321,321 inclined-plane is tightly pressed against on 319, and 319 are tightly pressed against on the internal chamber wall of cylinder body 310, realize gas Spring press-in locking.

The invention provides a kind of brand-new telescope stick, mainly apply change it is a kind of with mechanical lock mechanism can The stroke of control formula gas spring piston bar changes the height of crutch, reaches the pedestrian using crutch in good time easily from level land It is upper ladder step or the position more slightly lower than standing state is sitting in from standing state, additionally provide the pedestrian press...with one's finger control by Button synchronously pushes or release handle changes the completely new approach of the height of the crutch in use, further, there is provided Yi Zhongan Complete reliable, can repairing, environmentally friendly, energy-conservation gas spring telescopic crutch.

Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10 are hand-held crutch structure schematic diagrames, and the button in TB interstitial holes is pushed down with finger E31, handle TB is synchronously pushed, the crutch is shortened, height reduction, release button E31, and height is kept；Pushed down with finger in TB Between button E31 in hole, do not apply the external force being pressed downward on handle, the crutch is elongated, and height increases, release button E31, Highly keep constant；In button E31 release conditions, handle is pushed, now crutch height condition is in locking, therefore, high Spend constant.Hand-held crutch height change is also to have used the 26S Proteasome Structure and Function identical gas bullet with changing Oxter crutch height Spring, gas spring piston throw of lever change procedure is as described in [0023].

The positioner that the gas spring matches in the course of the work, because being provided with keeper 311 and positioning pipe 312, Piston rod and its load (pedestrian) above will not have mercy on the rotation of the axle center of anti-skid rubber cushion 36；Because being provided with adjustable pressure one-way safety Valve, can constantly automatically gases at high pressure are overloaded to presetting required safe gas pressure in unloading gas spring cylinder inner chamber, Eliminate the danger that the inner chamber of cylinder block gases at high pressure explode because pressure is excessive；Because being provided with the inflatable unidirectional of pressure adjustable Charge valve, can be at any time to the inflation of Gas spring cylinder intracoelomic cavity or the gases at high pressure of unloading gas spring cylinder inner chamber；Cylinder body both ends Closure connector is screw connection structure, and removable convenience (the argoshield bullet at present of maintenance is provided for whole gas spring Spring is without maintenance, it is impossible to what normal work just renewed)；The power of general controllable type gas spring piston bar press-in is greater than work The power that stopper rod stretches out, piston rod stroke just have the possibility to shorten, the person that lower limb are incomplete and action is inconvenient or moving difficulty is weak Walking, to exert press-in piston rod will be extremely difficult, or even can not realize, because the gas spring is provided with piston machine lock Determine mechanism, as long as the less stretching of the piston rod of gas spring or pressing-in force, change can carry big lock support power, with the gas Body spring just becomes very easily, great convenience to be brought to the pedestrian using crutch to change the height of crutch.

Claims (3)

1. a kind of purely mechanic button switch of band adjusts the telescope stick of height in good time, the crutch can be Oxter crutch, It can be hand-held crutch；Oxter crutch is made up of upper element (2), intermediate connector (1), the first lower component (3)；On described Parts (2) have an armpit support (21), and the armpit support (21) is cased with armpit support sheath (22), institute made of an elastomeric material above State armpit support (21) has two holes below, and described two holes are used to be mounted with the interior light rigidity material for having reinforcement material respectively Expect the first pipe (23), the second pipe (24), the one end of first pipe (23), the second pipe (24) away from armpit support sheath is leaned on There are multiple equidistant second through holes (29) end upwards successively, first pipe (23), the second pipe (24) it is described There are multiple first through hole (28) above second through hole (29), the first pipe (23), the remote armpit support sheath of the second pipe (24) The corresponding mounting hole on intermediate connector (1) is inserted in one end, and to first pipe (23), the second pipe (24) by end Second through hole (29) insertion screw rod pin (210) is locked, close to intermediate connector (1) first pipe (23), second The first handle (26) that a surface has elastomeric material is equiped between pipe (24), the first handle (26) has a center Hole, an one end have diameter more than first pipe (23), the platform cone material of the first through hole (28) of the second pipe (24) And the other end has threaded axle (25), through the first through hole (28) of second pipe (24), it is then passed through described The centre bore of first handle (26), passed by the level first through hole (28) of first pipe (23), thereafter in institute State nut (27) locking that a plum blossom-shaped is installed on the other end screw rod of axle (25)；First lower component (3) is a work Controllable type gas spring of the intraware with mechanical lock mechanism (B1) is filled in, the piston rod (33) of the controllable type gas spring is worn The central through hole of the intermediate connector (1) is crossed, there is external screw thread piston rod (33) end, in the intermediate connector (1) Upper and lower surface installs the first nut (34), the second nut (35) with having for the piston rod (33) on externally threaded screw rod, to Piston rod (33) is fixed and positioned, the piston rod (33) has one from the center of the distal end of the cylinder body (310) of piston cylinder The control piece (32) of the controllable type gas spring protruded out outside, the control piece (32) stretch out the portion of piston rod (33) end It is threaded screw rod to divide, and first mechanical push button switch of mushroom (31) is installed on the screw rod of the control piece (32), The controllable type gas spring and piston rod (33) stretch out the center of the bottom of the other end in opposite direction, installing one be used for The abrasive rubber support Non-slip material (36) of ground supports contact；The mechanical lock mechanism (B1) is by valve element (313), the first ball (316), connecting rod (317), unlock piece (318), the second ball (319), compression Lock spring base (320), compression locking piece (321), back-up ring (322), passage (323), elongation Lock spring first base (314) and elongation Lock spring second base (315) form；The controllable type gas spring is also provided with：It is concentric to prevent that the relatively described cylinder body (310) of piston rod (33) from making Line circle rotation and prevent dust enter moving piston bar gas spring keeper (311), positioning pipe (312), can inflate Pressure adjustable inflation check valve (38), first one-way safety to be interlinked with the cylinder body (310) inner chamber at piston both ends Valve (37), the second one-way relief valves (39)；Each pitch of holes of the first through hole (28) and each pitch of holes of second through hole (29) It is equal, change the first through hole on the first pipe (23), the second pipe (24) of the axle (25) through first handle (26) centre bore (28) hole position position, you can regulation first handle (26) to the distance between armpit support (21), realize that fine setting uses the comfortable of crutch Degree, synchronous change intermediate connector (1) realize the same of button position in the hole position of the corresponding stationary positioned of second through hole (29) Step change；Tongue on the gas spring keeper (311) is cylindrical and the groove phase in the positioning pipe (312) inner circle Match somebody with somebody, prevent piston rod (33) from rotating；The mechanical lock mechanism (B1) is the gas spring piston machinery of the first lower component (3) Latch-up structure component, when depressing the first mechanical push button switch (31), control piece (32) is depressed, and valve element (313) is by control piece (32) to depress, valve element (313) is opened, the through hole with the gas that compression locking piece (321) endoporus connects by unlock piece (318), Into the inner via hole of elongation Lock spring second base (315), elongation Lock spring first base (314), piston is entered back into (325) centre bore, then connected with passage (323), further, gas connection in whole cavity in the cylinder body (310), Pressure is equal, valve element (313) top pressure unlock piece (318), unlock piece (318) second ball of boss top pressure (319), the second ball (319) leave compression locking piece (321) tapered slope to be unlocked into free state, compression locking, the taper of unlock piece (318) is oblique The first ball (316) is left in face, stretches out locking and is unlocked, now, if first handle (26) is without the downward pressure of application, cylinder body (310) gases at high pressure of inner chamber are applied to the power that compression locking piece (321) end acts on piston (325), more than in cylinder body (310) The gases at high pressure of chamber are applied to the power that piston rod (33) extreme direction is applied on piston (325), and piston rod (33) stretching is elongated, turns Cane highly increases, if application one is pressed downward more than the power that the piston rod (33) freely extends on first handle (26), piston Bar (33), which is pressed into, to shorten, crutch height reduction；When discharging the first mechanical push button switch (31), control piece (32) is released, valve Core (313) is released closing, and the centre bore of piston (325) is blocked by valve element (313), the gases at high pressure quilt at piston (325) both ends Isolation is blocked, cylinder body (310) inner chamber is separated into two independent cavitys of high-pressure gas by piston (325), now, If first handle (26) is applied to compression locking piece without downward pressure, the gases at high pressure of cylinder body (310) inner chamber are applied (321) end acts on the power of piston (325), and gases at high pressure application piston rod (33) extreme direction more than cylinder body (310) inner chamber is applied The power being added on piston (325), the cavity that piston (325) often connects with piston rod (33), because by arrival to the piston (325) The pressure of other end cavity produces a reaction force, and elongation Lock spring first base is applied to by piston (325) (314) on the spring leaf for, extending Lock spring second base (315), the first ball (316), the inclined-plane of unlock piece (318) are withstood The first ball (316) is tightly pushed down by the pressure from opposite direction, the first ball (316) is tightly pressed against the cylinder body (310) on internal chamber wall, realize that gas spring releases locking, if applying one on first handle (26) is more than the piston rod (33) certainly When being pressed downward by the power extended, piston (325) and compression locking piece (321) cavity that often connects, because by arrival to the piston (325) other end chamber pressure produces a reaction force, is applied directly on the spring leaf of compression Lock spring base (320) The second ball (319) is withstood, due to acting directly on piston rod (33) from being applied to the downward pressure of first handle (26), The downward pressure is acted on piston (325), by extending Lock spring first base (314), elongation Lock spring the Two bases (315), connecting rod (317) are delivered on compression locking piece (321), and the inclined-plane of compression locking piece (321) is tightly pressed against On second ball (319), the second ball (319) is tightly pressed against on the cylinder body (310) internal chamber wall, realizes gas spring press-in lock It is fixed；Hand-held crutch is made up of the second lower component (E1), second handle (TB)；Second handle (TB) has a screwed hole, and described The screwed hole of two handles (TB) is connected with the screw rod of the piston rod front end of the second lower component (E1), in the screwed hole There is the large through-hole greater diameter than the mechanical push button switch of mushroom head second (E31) upper end, and the mechanical button of mushroom head second is opened The upper surface for closing (E31) is less than the upper surface 2mm to 3mm of the large through-hole；The second lower component (E1) and armpit of hand-held crutch The structure of the first lower component (3) of lower crutch is entirely the same, in the second handle (TB) that hand-held crutch is pushed down with finger Between the second mechanical push button switch (E31) in hole, synchronously push second handle (TB), the crutch shortens, height reduction, release Second mechanical push button switch (E31), height are kept；Second in second handle (TB) interstitial hole of hand-held crutch is pushed down with finger Mechanical push button switch (E31), the external force being pressed downward is not applied on second handle (TB), the crutch is elongated, and height increases, and releases The second mechanical push button switch (E31) is put, is highly kept constant；Shape is discharged in the second mechanical push button switch (E31) of hand-held crutch In state, second handle (TB) is pushed, now crutch height condition is in locking, therefore, highly constant.

2. the purely mechanic button switch of band according to claim 1 adjusts the telescope stick of height in good time, it is characterized in that, institute Oxter crutch is stated, the first pipe (23), the second pipe (24) of upper element (2) make right angle setting with intermediate connector (1), the One lower component (3) makees right angle setting with intermediate connector (1), and first pipe (23), the second pipe (24) are all straight tubes.

3. a kind of purely mechanic button switch of band according to claim 1 adjusts the user of the telescope stick of height in good time Method, user is pushed with finger pins the first mechanical push button switch (31) or the second mechanical push button switch (E31), and synchronization is held Firmly first handle (26) or second handle (TB) push down on the controllable type gas spring of lower section, described controllable by adjusting in good time The length of formula gas spring, and then the height for adjusting the telescope stick in good time extremely uses what the pedestrian of the crutch needed Highly, the finger discharges first mechanical push button switch (31) or the second mechanical push button switch (E31), and keeps now institute State the height of crutch.