CN114403565B - Alpenstock - Google Patents

Abstract

The application discloses alpenstock, it includes the mobile jib, first branch and second branch, the mobile jib slides and cup joints on first branch, first branch slides and cup joints on second branch, be provided with synchro mechanism in the mobile jib, synchro mechanism is including rotating the synchronizing lever of connecting in the mobile jib, cup joint big reel and the little reel of fixing on the synchronizing lever, the both ends are connected the long reel rope on the circumference lateral wall of big reel and second branch respectively, the both ends are connected the short reel rope on the circumference lateral wall of little reel and first branch respectively, big reel is used for rolling long reel rope, little reel is used for rolling short reel rope, the diameter of little reel is half of the diameter of big reel, all be provided with locking mechanism on first branch and the second branch, locking mechanism on the first branch is used for restricting the relative mobile jib of first branch, locking mechanism on the second branch is used for restricting the relative first branch of second branch and removes. The alpenstock has the effect of improving the convenience of use of the alpenstock.

Description

Alpenstock

Technical Field

The application relates to the field of outdoor products, in particular to a alpenstock.

Background

The alpenstock is an auxiliary instrument used during mountain climbing, can effectively relieve the knee pressure of a mountain climber, can also reduce the risk of wrestling, and provides protection for the mountain climber.

In order to facilitate the use and storage, most alpenstocks can be adjusted in length, and are classified into telescopic type alpenstocks and folding type alpenstocks according to the adjustment mode, and three sections of telescopic type alpenstocks are most common.

In carrying out the present application, the inventors have found that at least the following problems exist in this technology: when the length of the three or more telescopic alpenstocks is adjusted, the extending length of each section of supporting rod is required to be adjusted to be consistent so as to ensure the using length of the alpenstocks. Even if scales are marked on each section of supporting rod, the adjusting of the extending length of the plurality of sections of supporting rods is still complicated before use, and the improvement is needed.

Disclosure of Invention

In order to improve the convenience of using the alpenstock, the application provides the alpenstock.

The alpenstock provided by the application adopts the following technical scheme:

the utility model provides a alpenstock, includes mobile jib, first branch and second branch, the mobile jib slides and cup joints on first branch, first branch slides and cup joints on second branch, be provided with synchro mechanism in the mobile jib, synchro mechanism is including rotating the synchronizing lever of connecting in the mobile jib, cup joint big reel and the little reel of fixing on the synchronizing lever, both ends are connected respectively the long reel rope on the circumference lateral wall of big reel and second branch, both ends are connected respectively the circumference lateral wall of little reel and the short reel rope on the first branch, big reel is used for rolling long reel rope, little reel is used for rolling short reel rope, the diameter of little reel is half of the diameter of big reel, all be provided with locking mechanism on first branch and the second branch, locking mechanism on the first branch is used for restricting the relative mobile jib of first branch, locking mechanism on the second branch is used for restricting the relative first branch of second branch.

Through adopting above-mentioned technical scheme, when adjusting the length of this application alpenstock, remove the restriction of locking mechanism on the first branch to first branch earlier and the restriction of locking mechanism on the second branch to the second branch, then with first branch and second branch down and rotate the synchronizing lever in order to pay out long reel rope and short reel rope. Because the diameter of the big reel is twice that of the small reel, the length of the long rope reeled out by the big reel is approximately twice that of the short rope reeled out by the small reel, the first support rod and the second support rod move downwards under the action of gravity, the distance of the second support rod moving downwards is approximately half that of the first support rod, and the extending length of the first support rod relative to the main rod is almost consistent with the extending length of the second support rod relative to the first support rod. Finally, the first support rod is limited to slide through a locking mechanism on the first support rod, and the second support rod is limited to slide through a locking mechanism on the second support rod.

Through the structure, a user does not need to respectively adjust the first supporting rod and the second supporting rod when adjusting the alpenstock, and the convenience of the alpenstock in use is improved.

Optionally, the synchronization mechanism further comprises a reset coil spring connected to the synchronization rod, and the reset coil spring is used for driving the synchronization rod to rotate and reset.

Through adopting above-mentioned technical scheme, reset coil spring is used for driving the synchronizing lever and rotates the reset for the force of the big reel rolling long rope and the short rope of drive reel rolling is applyed to the synchronizing lever to the reset lever, thereby makes long rope and the short rope of rolling be in tensioning state all the time. On the one hand, the long winding rope and the short winding rope are not easy to stack and wind, on the other hand, the synchronous rod is not required to be rotated when the length of the alpenstock is adjusted, and after the two locking mechanisms are opened, the first supporting rod and the second supporting rod are directly downwards arranged.

Optionally, an ejector spring is connected to the first support rod, the ejector spring is used for driving the first support rod to move out of the main rod, and the sum of the elastic force of the ejector spring and the gravity born by the first support rod is smaller than the elastic force of the reset coil spring.

Through adopting above-mentioned technical scheme, when adjusting this application alpenstock, open two locking mechanism earlier, then pull out second branch to suitable length, long reel rope drive big reel and synchronizing lever rotation to drive little reel rotation and pay out short reel rope. Under the action of the ejection spring, the first support rod extends out of the main rod. Through above-mentioned structure, having played auxiliary effect to first branch stretches out the mobile jib for first branch also can stretch out the mobile jib under the condition of not facing downwards.

Optionally, the device further comprises an extension mechanism, wherein the extension mechanism comprises an extension spring connected to the second support rod, the extension spring is used for driving the second support rod to move out of the first support rod, and the elastic force of the extension spring is larger than that of the reset coil spring.

Through adopting above-mentioned technical scheme, when adjusting this application alpenstock, open two locking mechanism, under the effect of stretching out the spring, the second branch pops out, and first branch pops out under the effect of ejecting the spring. Then, the first support rod is propped against the ground and the main rod is pressed down, so that the extension spring and the ejection spring are compressed, the second support rod is retracted into the first support rod, the first support rod is retracted into the main rod, and after the first support rod is adjusted to a proper length, the first support rod is locked through the two locking mechanisms. Through above-mentioned structure for when adjusting the length of this application alpenstock, only need open locking mechanism, push down the mobile jib can, close locking mechanism at last, further improved the convenience when this application alpenstock was adjusted.

Optionally, the extension mechanism still includes fixed plate, fixed column and four sets of gliding stop subassembly of restriction second branch, the fixed plate is fixed in the mobile jib, the fixed column is fixed on the fixed plate and the axis of fixed column is collinearly with the axis of mobile jib, each stop subassembly is circumference equipartition around the axis of fixed column, stop subassembly includes slip cap, stop block, reset block and reset spring, the slip cap is fixed on the inner wall of second branch, the radial slip setting of stop block along the fixed column is in the slip cap, a plurality of reset grooves that are used for supplying different stop block tip to insert respectively are seted up on the circumference lateral wall of fixed column, each set of stop subassembly's reset block and reset spring set up respectively in different reset grooves, the reset block slides and sets up in the reset groove, reset spring connects on the reset block, when the axis of fixed column is vertical, the terminal surface of reset block and the lateral wall parallel and level of fixed column, the sum of the gravity of stop block and reset block is greater than reset spring.

Through adopting above-mentioned technical scheme, when lifting this application alpenstock to the axis level, because the gravity sum of stop block and reset piece is greater than reset spring's elasticity for the tip of at least one stop block supports to press on reset piece and stretches into reset groove. At this time, even if the two locking mechanisms are opened, it is difficult for the extension spring to drive the end portion of the second strut to extend out of the first strut. When the axis of this application alpenstock is vertical, under reset spring's effect, the terminal surface of reset piece and the lateral wall parallel and level of fixed column to release the reset groove with the tip of stop block. At the moment, the two locking mechanisms are opened, the second supporting rod is driven by the extending spring to extend out of the first supporting rod, and the first supporting rod is driven by the ejection spring to extend out of the main rod.

Through above-mentioned structure for the axis of this application alpenstock is in the level or when the contained angle with the horizontal plane is little, and the tip of at least one stop block is inserted and is established in reset groove, and restriction first branch and second branch pop out, have improved the security performance of this application alpenstock.

Optionally, a reset inclined plane is arranged at the end part of the stop block, which is close to the axis of the second support rod, and the reset inclined plane faces the fixed plate.

Through adopting above-mentioned technical scheme, when taking in first branch with second branch, open two locking mechanism earlier, support the tip of pressing on subaerial and push down the mobile jib with first branch again, the fixed column removes relative second branch. Along with the movement of the fixed column, the end part of the fixed column is propped against the reset inclined plane and pushes the stop block to move, so that the end part of the fixed column can be continuously inserted into the second supporting rod. The reset inclined plane enables the end part of the stop block to play a reset role when extending to the moving path of the fixed column.

Optionally, locking mechanism includes fixed cover, deformation cover, locking clamp, locking lever, connecting block, locking nut and locking buckle, deformation cover is fixed on fixed cover, just set up the deformation groove that is linked together with deformation cover inner wall on the circumference outer wall of deformation cover, the locking clamp cover is established on deformation cover, the locking lever runs through the both ends of locking clamp, the one end at the locking lever is fixed to the connecting block, locking nut threaded connection is at the other end of locking lever, locking buckle is connected and is used for driving the connecting block to the direction removal of keeping away from the free end on the connecting block, locking buckle is contradicted with one of them free end of locking clamp, the fixed cover of locking mechanism on the first branch cup joints and is fixed on the mobile jib, the deformation cover of locking mechanism on the first branch is established on the first branch.

Through adopting above-mentioned technical scheme, when locking first branch, through locking buckle drive connecting block to keeping away from the direction removal of expansion end, locking buckle and the conflict of one of them expansion end, locking buckle drives locking nut through the locking lever and removes to the direction that is close to the expansion end to make locking nut and the conflict of another expansion end, make locking clamp deformation cover. The deformation groove enables the deformation sleeve to deform, the locking clamp clamps the deformation sleeve so that the deformation sleeve on the first support rod clamps the first support rod, and the fixing sleeve is fixed on the main rod, so that the movement of the first support rod relative to the main rod is limited. The first supporting rod is limited to move through the structure, and the structure is simple.

Optionally, the locking buckle includes the rotation portion of contradicting with the expansion end of locking buckle, connects the pressing part on the rotation portion and rotate the articulated lever that sets up on the connecting block, the articulated lever runs through and rotates to be connected on the rotation portion, the articulated lever is eccentric setting.

Through adopting above-mentioned technical scheme, rotate by the articulated lever and set up on the connecting block, the articulated lever runs through and rotates to be connected on rotating the portion, and the articulated lever is eccentric setting for when locking the buckle and rotate, can change the interval of connecting block and locking nut, thereby change the interval of rotating the portion and locking nut, in order to make connecting block and locking nut can press from both sides tightly or loosen the two loose ends of locking clamp. Through the structure, the locking mechanism can be opened or locked by rotating the locking buckle, the operation is simple and convenient, and the locking mechanism is particularly suitable for single-hand operation of a user.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the synchronous mechanism, when the length of the alpenstock is adjusted, the moving distance of the second supporting rod approaches to twice that of the first supporting rod, so that the length of the second supporting rod extending out of the first supporting rod is almost consistent with that of the first supporting rod extending out of the main rod, and the convenience in use of the alpenstock is improved;

2. when the first support rod and the second support rod are downward through the extending mechanism so that the axis of the fixed column is vertical and the two locking mechanisms are opened, the first support rod and the second support rod are popped up, and a user can conveniently adjust the length of the alpenstock;

3. through the stop subassembly for when the axis level of fixed column, this application alpenstock is in the level promptly, even open two locking mechanism, first branch and second branch also can't pop out, improved the security performance of this application alpenstock.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of an embodiment of the present application.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Fig. 4 is a schematic diagram showing a partial structure of the synchronization mechanism in the embodiment of the present application.

Fig. 5 is an enlarged schematic view at B in fig. 2.

Fig. 6 is a partial schematic view of the salient lock mechanism in the embodiment of the application.

Reference numerals illustrate:

1. a main rod; 11. a handle; 2. a first strut; 21. an ejector spring; 3. a second strut; 31. a tip of a cane; 32. a mud support; 4. a synchronizing mechanism; 41. a synchronizing lever; 42. a large reel; 43. a small reel; 44. a long rope; 45. a short rope; 46. a reset coil spring; 47. a baffle ring; 5. an extension mechanism; 51. a fixing plate; 52. fixing the column; 521. a reset groove; 53. extending the spring; 54. a stop assembly; 541. a sliding sleeve; 542. a stopper; 543. a reset block; 5431. resetting the inclined plane; 544. a return spring; 6. a locking mechanism; 61. a fixed sleeve; 62. a deformation sleeve; 621. a deformation groove; 63. locking the clamp; 64. a locking lever; 65. a connecting block; 66. a lock nut; 67. locking the buckle; 671. a rotating part; 672. a pressing part; 673. and a hinge rod.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a alpenstock. Referring to fig. 1 and 2, the alpenstock includes a main rod 1, a first pole 2, a second pole 3, a synchronizing mechanism 4 provided in the main rod 1, an extending mechanism 5 for driving the first pole 2 and the second pole 3 to extend, and two sets of locking mechanisms 6 for restricting sliding of the first pole 2 and the second pole 3, respectively.

Referring to fig. 1 and 2, a handle 11 is fixed to the main lever 1 to facilitate the grip of a user. The main rod 1 sliding sleeve 541 is connected to the first support rod 2, the first support rod 2 sliding sleeve 541 is connected to the second support rod 3, and the axes of the main rod 1, the first support rod 2 and the second support rod 3 are collinear. The tip 31 is fixed to the tip of the second supporting rod 3, and a mud support 32 for preventing the alpenstock from sinking into the soft soil is sleeved on the second supporting rod 3.

Referring to fig. 2 to 4, the synchronizing mechanism 4 includes a synchronizing lever 41, two large reels 42, two small reels 43, two long reels 44, two short reels 45, and a return coil spring 46. The synchronizing lever 41 is rotatably connected within the main lever 1, and an axial direction of the synchronizing lever 41 is perpendicular to an axial direction of the main lever 1. The two large reels 42 are sleeved and fixed on the synchronous rod 41, the two long ropes 44 are respectively arranged on different large reels 42, and the large reels 42 are used for winding the long ropes 44. One end of the long rope 44 is fixed to the circumferential side wall of the large reel 42, and the other end of the long rope 44 is fixed to the second pole 3. The two small reels 43 are sleeved and fixed on the synchronous rod 41, and the large reel 42 is positioned between the two small reels 43. The two short reels 45 are respectively arranged on different small reels 43, and the small reels 43 are used for winding the short reels 45. One end of the short rope 45 is fixed to the circumferential side wall of the small reel 43, and the other end of the short rope 45 is fixed to the first pole 2. The diameter of the small reel 43 is half of that of the large reel 42, and the stop rings 47 are fixed to both ends of the small reel 43 in the axial direction thereof and both ends of the large reel 42 in the axial direction thereof.

Referring to fig. 3 and 4, a reset coil spring 46 is located between the two large reels 42, two stress ends of the reset coil spring 46 are respectively fixed on the inner walls of the synchronous rod 41 and the main rod 1, and the reset coil spring 46 is used for driving the synchronous rod 41 to rotate and reset so as to drive the large reels 42 to wind the long ropes 44 and the small reels 43 to wind the short ropes 45, so that the long ropes 44 and the short ropes 45 are in a tensioning state all the time.

Referring to fig. 2, 3 and 5, the extension mechanism 5 includes a fixing plate 51, a fixing post 52, an extension spring 53 and four sets of stop assemblies 54, the fixing plate 51 is fixed in the main rod 1, and the fixing plate 51 is located at one side of the synchronizing rod 41 near the first support rod 2, and the long winding rope 44 and the short winding rope 45 penetrate through the fixing plate 51.

Referring to fig. 3 and 4, six ejector springs 21 are provided on the first support rod 2, and each ejector spring 21 is uniformly distributed circumferentially around the axis of the main rod 1. The ejector springs 21 extend and retract along the axial direction of the main rod 1, the two ends of each ejector spring 21 are respectively fixed on the fixing plate 51 and the first support rod 2, the ejector springs 21 drive the first support rod 2 to move out of the main rod 1, and the sum of the elastic force exerted by each ejector spring 21 on the first support rod 2 and the gravity applied by the first support rod 2 is smaller than the elastic force of the reset coil spring 46.

Referring to fig. 2-4, when the length of the mountain climbing pole is adjusted, the second supporting rod 3 is pulled out of the first supporting rod 2, the second supporting rod 3 drives the large reel 42 to rotate through the long reel rope 44 and overcomes the elastic force of the reset coil spring 46, so that the synchronous rod 41 is driven to rotate and the small reel 43 is driven to rotate, and the short reel rope 45 is released. Under the action of the ejector spring 21, the first strut 2 moves out of the main rod 1. Since the diameter of the small reel 43 is half that of the large reel 42, the length of the short rope 45 paid out is made to approach half that of the long rope 44 paid out, so that the moving distance of the first pole 2 is made to approach half that of the second pole 3, and thus the length of the second projecting first pole 2 is made almost identical to that of the first pole 2 projecting from the main pole 1.

Referring to fig. 4 and 5, the fixed post 52 is fixed to a side of the fixed plate 51 remote from the synchronizing lever 41, and an axis of the fixed post 52 is collinear with an axis of the main lever 1. The extension spring 53 stretches in the axial direction of the second supporting rod 3, and two ends of the extension spring 53 are respectively fixed on the fixing column 52 and the inner wall of the second supporting rod 3. The extension spring 53 is used to drive the second rod 3 out of the first rod 2, and the elastic force of the extension spring 53 is greater than that of the return coil spring 46.

Referring to fig. 5, the stop assemblies 54 are used to limit the sliding of the second strut 3, and the stop assemblies 54 are circumferentially distributed around the axis of the fixed column 52. The stopper assembly 54 includes a sliding sleeve 541, a stopper 542, a restoring block 543, and a restoring spring 544, the sliding sleeve 541 being fixed to an inner wall of the second strut 3, the stopper 542 being slidably disposed in the sliding sleeve 541 in a radial direction of the fixed column 52. Four reset grooves 521 extending along the radial direction of the fixed column 52 are formed in the circumferential side wall of the fixed column 52, the reset grooves 521 are uniformly distributed circumferentially around the axis of the fixed column 52, the reset grooves 521 are aligned with the adjacent sliding sleeves 541, and the reset grooves 521 are used for the end parts of the adjacent stop blocks 542 to extend in.

Referring to fig. 5, the restoring blocks 543 and the restoring springs 544 of the stopper units 54 of the respective groups are respectively provided in different restoring grooves 521, the restoring blocks 543 are slidably provided in the restoring grooves 521, the restoring springs 544 are positioned on one side of the restoring blocks 543 near the bottoms of the restoring grooves 521, and both ends of the restoring springs 544 are respectively fixed to the bottoms of the restoring blocks 543 and the restoring grooves 521. When the axis of the fixed column 52 is vertical, under the action of the return spring 544, the end surface of the return block 543, which is far away from the return spring 544, is flush with the side wall of the fixed column 52. The sum of the gravity of the stopper 542 and the reset block 543 is greater than the elastic force of the reset spring 544, so that the stopper 542 is aligned with the reset groove 521, and when the axis of the fixed column 52 is horizontal or the included angle between the axis of the fixed column 52 and the horizontal plane is small, the end of the stopper 542 is pressed against the reset block 543 and extends into the reset groove 521.

Referring to fig. 2 and 5, the end of the stopper 542 near the axis of the second strut 3 is provided with a reset slope 5431 for abutting against the fixing post 52, the reset slope 5431 facing the fixing plate 51. By the reset inclined surface 5431, when the first pole piece 2 is retracted into the second pole piece 3 and the second pole piece 3 is retracted into the main lever 1, even if the end portion of the stopper 542 is located on the moving path of the fixed pole 52, the fixed pole 52 is pressed against the reset inclined surface 5431 to be able to drive the stopper 542 to be retracted into the sliding sleeve 541.

Referring to fig. 6, the locking mechanism 6 includes a fixing sleeve 61, a deformation sleeve 62, a lock clip 63, a lock lever 64, a connection block 65, a lock nut 66, and a lock catch 67. The deformation sleeve 62 is integrally formed at one end of the fixing sleeve 61, and the axis of the deformation sleeve 62 is collinear with the axis of the fixing sleeve 61. Two deformation grooves 621 are formed in the circumferential outer wall of the deformation sleeve 62, the two deformation grooves 621 are uniformly distributed axially around the axis of the deformation sleeve 62, and the deformation grooves 621 are communicated with the inner wall of the deformation sleeve 62. The deformation sleeve 62 is made of a deformable material, in the embodiment of the present application, plastic is used, and the deformation sleeve 62 can deform inwards by applying an inward force to the deformation sleeve 62.

Referring to fig. 6, the locking clip 63 is in a C shape, the locking clip 63 is sleeved on the deformation sleeve 62, the locking rod 64 penetrates through both movable ends of the locking clip 63, the connection block 65 is fixed at one end of the locking rod 64, the locking nut 66 is screwed at the other end of the locking rod 64, and both movable ends of the locking clip 63 are located between the connection block 65 and the locking nut 66.

Referring to fig. 6, the locking buckle 67 includes a rotation portion 671 and a pressing portion 672 integrally formed, a hinge lever 673 eccentrically provided on the rotation portion 671, the hinge lever 673 penetrating the rotation portion 671 and the connection block 65, and the hinge lever 673 being rotatably connected to the rotation portion 671 and the connection block 65. The rotating portion 671 is configured to abut against one of the movable ends of the locking buckle 67, the pressing portion 672 is configured to be pressed by a user, and the pressing portion 672 can abut against the locking clip 63. When the locking buckle 67 rotates until the pressing part 672 collides with the locking clamp 63, the interval between the abutting end of the rotating part 671 and the movable end of the locking clamp 63 and the hinging rod 673 is the largest, and the locking state is achieved at the moment; when the pressing portion 672 is rotated in a direction away from the lock catch 67, the distance between the abutting end of the rotating portion 671 against the movable end of the lock clip 63 and the hinge lever 673 is reduced, and the state is opened.

Referring to fig. 1 and 6, a set of fixing sleeves 61 of the locking mechanism 6 are sleeved and fixed on the main rod 1, and a deformation sleeve 62 is sleeved and arranged on the first support rod 2 so as to limit the first support rod 2 to slide relative to the main rod 1; the fixed sleeve 61 of the other group of locking mechanism 6 is sleeved and fixed on the first supporting rod 2, and the deformation sleeve 62 is sleeved and arranged on the second supporting rod 3 so as to limit the second supporting rod 3 to slide relative to the first supporting rod 2.

The implementation principle of the alpenstock in the embodiment of the application is as follows: when the length of the alpenstock is adjusted, the tip 31 is first oriented to the ground and the axis of the main rod 1 is vertical, and at this time, under the action of the return spring 544, the stop block 542 is pushed out of the return groove 521 by the return block 543. The two locking catches 67 are then turned to switch the two locking mechanisms 6 from the locked state to the open state. Under the action of the extension spring 53, the second support rod 3 extends out of the first support rod 2 and drives the large reel 42 to rotate through the long reel 44, the large reel 42 drives the small reel 43 to rotate through the synchronous rod 41 to pay out the short reel 45, and under the action of the ejection spring 21, the first support rod 2 extends out of the main rod 1. Then the main rod 1 is pressed down, the extension spring 53 compresses, the first support rod 2 partially retracts, the ejection spring 21 compresses under the action of the reset coil spring 46, and the second support rod 3 partially retracts, so that the alpenstock is adjusted to a proper length, and at the moment, the length of the first support rod 2 extending out of the main rod 1 is almost identical with the length of the second support rod 3 extending out of the first support rod 2. Finally, the two locking buckles 67 are rotated, so that the rotating parts 671 and the locking nuts 66 abut against the two movable ends of the locking clamp 63, and the locking clamp 63 abuts against the deformation sleeve 62 to clamp the deformation sleeve 62 inwards, so that the first support rod 2 and the second support rod 3 are limited to slide.

Through the structure, the length of the first support rod 2 extending out of the main rod 1 is almost consistent with the length of the second support rod 3 extending out of the first support rod 2, subsequent adjustment is not needed, and the convenience of using the alpenstock is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (5)

1. The utility model provides a alpenstock, includes mobile jib (1), first branch (2) and second branch (3), mobile jib (1) slip cup joints on first branch (2), first branch (2) slip cup joints on second branch (3), its characterized in that: the novel mechanical hand is characterized in that a synchronizing mechanism (4) is arranged in the main rod (1), the synchronizing mechanism (4) comprises a synchronizing rod (41) rotatably connected in the main rod (1), a large reel (42) and a small reel (43) which are fixedly sleeved on the synchronizing rod (41), long reel ropes (44) with two ends respectively connected to the circumferential side wall of the large reel (42) and the second support rod (3), short reel ropes (45) with two ends respectively connected to the circumferential side wall of the small reel (43) and the first support rod (2), the large reel (42) is used for winding the long reel ropes (44), the small reel (43) is used for winding the short reel ropes (45), the diameter of the small reel (43) is half of the diameter of the large reel (42), locking mechanisms (6) are arranged on the first support rod (2) and the second support rod (3), the locking mechanisms (6) on the first support rod (2) are used for limiting sliding of the first support rod (2) relative to the main rod (1), and the locking mechanisms (6) on the second support rod (3) are used for limiting the movement of the second support rod (3) relative to the first support rod (2).

The synchronizing mechanism (4) further comprises a reset coil spring (46) connected to the synchronizing rod (41), and the reset coil spring (46) is used for driving the synchronizing rod (41) to rotate and reset;

the first support rod (2) is connected with an ejection spring (21), the ejection spring (21) is used for driving the first support rod (2) to move out of the main rod (1), and the sum of the elastic force of the ejection spring (21) and the gravity borne by the first support rod (2) is smaller than the elastic force of the reset coil spring (46);

the device further comprises an extension mechanism (5), the extension mechanism (5) comprises an extension spring (53) connected to the second support rod (3), the extension spring (53) is used for driving the second support rod (3) to move out of the first support rod (2), and the elastic force of the extension spring (53) is larger than that of the reset coil spring (46).

2. A alpenstock according to claim 1, wherein: the extending mechanism (5) further comprises a fixed plate (51), fixed columns (52) and four groups of stop assemblies (54) limiting the second support rods (3) to slide, the fixed plate (51) is fixed in the main rod (1), the fixed columns (52) are fixed on the fixed plate (51) and the axes of the fixed columns (52) and the main rod (1) are collinear, the stop assemblies (54) are uniformly distributed circumferentially around the axes of the fixed columns (52), each stop assembly (54) comprises a sliding sleeve (541), stop blocks (542), reset blocks (543) and reset springs (544), the sliding sleeve (541) is fixed on the inner wall of the second support rods (3), the stop blocks (542) are arranged in the sliding sleeve (541) in a sliding manner along the radial direction of the fixed columns (52), a plurality of reset grooves (521) respectively used for inserting the ends of the different stop blocks (542) are formed in the circumferential side wall of the fixed columns, the reset blocks (54) and the reset springs (544) are respectively arranged in the reset grooves (521) which are vertically connected with the reset blocks (543) in the reset grooves (52) when the reset blocks (543) are arranged in the reset grooves (543) respectively, the end face of the reset block (543) is flush with the side wall of the fixed column (52), and the sum of the gravity of the stop block (542) and the gravity of the reset block (543) is larger than the elastic force of the reset spring (544).

3. A alpenstock according to claim 2, wherein: the end of the stop block (542) close to the axis of the second support rod (3) is provided with a reset inclined plane (5431), and the reset inclined plane (5431) faces the fixed plate (51).

4. A alpenstock according to claim 1, wherein: locking mechanism (6) are including fixed cover (61), deformation cover (62), locking clamp (63), locking lever (64), connecting block (65), lock nut (66) and locking buckle (67), deformation cover (62) are fixed on fixed cover (61), just set up deformation groove (621) that are linked together with deformation cover (62) inner wall on the circumference outer wall of deformation cover (62), locking clamp (63) cover is established on deformation cover (62), locking lever (64) runs through the both ends of locking clamp (63), connecting block (65) are fixed in the one end of locking lever (64), lock nut (66) threaded connection is at the other end of locking lever (64), locking buckle (67) are connected on connecting block (65) and are used for driving connecting block (65) to move to the direction of keeping away from the end, locking buckle (67) are fixed on fixed cover (1) of locking mechanism (6) on first branch (2) cup joint on deformation cover (62), first branch (2) are established.

5. A alpenstock according to claim 4, wherein: the locking buckle (67) comprises a rotating part (671) which is abutted against the movable end of the locking buckle (67), a pressing part (672) connected to the rotating part (671) and a hinging rod (673) which is rotatably arranged on the connecting block (65), wherein the hinging rod (673) penetrates through and is rotatably connected to the rotating part (671), and the hinging rod (673) is eccentrically arranged.