CN110693146B

CN110693146B - Outdoor exercises alpin-stock

Info

Publication number: CN110693146B
Application number: CN201911023754.8A
Authority: CN
Inventors: 陈连华; 平正
Original assignee: Wenzhou Business College
Current assignee: Hefei Jiuzhou Longteng Scientific And Technological Achievement Transformation Co ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2021-06-08
Anticipated expiration: 2039-10-25
Also published as: CN110693146A; JP2021065674A

Abstract

The invention discloses an outdoor sport alpenstock, which comprises a supporting rod, wherein a handle is arranged at the upper end of the supporting rod, a lifting cavity is arranged in the supporting rod, a rotating device is arranged at the upper side of the lifting cavity, the rotating device comprises a rotating shaft and a rotating gear, the upper part of the rotating shaft is in a spline shape, the lower part of the rotating shaft is in a thread shape, and the spline part of the rotating shaft is in spline connection with an inner diameter spline structure of the rotating gear. A ground grabbing knife is arranged in the alpenstock, so that convenience is brought to climbing.

Description

Outdoor exercises alpin-stock

Technical Field

The invention relates to the technical field of outdoor articles, in particular to an outdoor sports alpenstock.

Background

Mountain climbing, not only take exercises, can also rub the will, but because the road of mountain climbing is difficult, so make mountain climbing stick can provide the holding power for mountain climbing, alleviate the burden of arm, but current mountain climbing stick simple structure, the skiing circle is detachable, because the skiing circle can prevent that mountain climbing stick from being absorbed in the mud ground, but lie in the convenience that the skiing circle can hinder the action when the region of mostly thorn bush climbs, but the skiing circle of disconnect-type is easily omitted when carrying, fixed mounting's skiing circle influences the action, cause the inconvenient use of mountain climbing, and the expansion size of skiing circle is not adjustable. The present invention sets forth a device that solves the above problems.

Disclosure of Invention

The technical problem is as follows:

the existing alpenstock has simple function, and the ski ring is inconvenient to assemble, disassemble and use.

In order to solve the problems, the outdoor sports alpenstock of the embodiment comprises a support rod, a handle is installed at the upper end of the support rod, a lifting cavity is arranged in the support rod, a rotating device is arranged on the upper side of the lifting cavity and comprises a rotating shaft and a rotating gear, the upper part of the rotating shaft is in a spline shape, the lower part of the rotating shaft is in a thread shape, the spline part of the rotating shaft is in spline connection with the spline structure of the inner diameter of the rotating gear, an operating block is fixedly arranged on the lower end surface of the support rod, a transmission device is arranged in the operating block and comprises a rotatable toothed ring, the inner diameter of the toothed ring is in a thread structure, a sliding space is arranged in the operating block, a cane tip with the upper end extending into the lifting cavity is slidably arranged in the sliding space, a protective pad is sleeved at the lower end of the cane tip, and is in, the periphery of the sliding space is provided with a threaded cavity with a threaded inner end wall, the threaded cavity is internally connected with a rotatable threaded block in a threaded fit manner, the threaded block can drive the toothed ring to rotate when rotating so as to lift the cane tip, four supporting devices which are arranged by taking the sliding space as an array central annular array are arranged at the lower side of the threaded cavity, each supporting device comprises a rotatable first supporting plate, when the inner wall of the threaded block is abutted against the first supporting plate, the first supporting plate is contracted, the threaded block is separated from the first supporting plate, the first supporting plate is unfolded outwards, the first supporting plate has a supporting effect on the supporting rod, an extension device is arranged in the first supporting plate, the extension device comprises a telescopic second supporting plate, and the size of a supportable area is adjusted by the second supporting plate and the first supporting plate, slidable is equipped with the sliding block in the cane point, the sliding block with axis of rotation threaded connection, then when the axis of rotation rotates, can make the sliding block goes up and down, be provided with rotatable earth-grasping sword in the sliding block, the sliding block descends the back earth-grasping sword is rotatable to be opened for use when providing the climbing in the ground power of grabbing and thorn road surface.

Preferably, a limiting groove is formed in the right end wall of the lifting cavity in a communicating manner, a limiting block is slidably arranged in the limiting groove, the left end of the limiting block is fixedly mounted with the tip of the stick, and when the toothed ring rotates, the tip of the stick is lifted due to the fact that the toothed ring is in threaded connection with the tip of the stick.

Wherein, rotating device is including stirring the groove, the running gear rotate install in stir the inslot, the meshing of running gear right-hand member is connected with stirring gear, stir the gear right-hand member and extend to the external world, stir the groove upper end and communicate with each other and be equipped with the recess, the axis of rotation upper end extends to in the recess, stir the groove downside and be equipped with the lift chamber, the lift chamber with the space that slides communicates with each other, thereby stir gear drive when rotating the axis of rotation rotates.

The transmission device comprises a meshing cavity, the toothed ring is rotatably installed in the meshing cavity, the right end of the toothed ring is meshed with a meshing gear, a sliding shaft is fixedly arranged at the center of the meshing gear, the lower side of the meshing cavity is communicated with a ring groove, a ring plate is slidably arranged in the ring groove, the lower end of the sliding shaft extends into the threaded cavity, and the sliding shaft is rotatably connected with the ring plate through a bearing.

Preferably, a sliding groove is formed in the thread block, the lower end of the sliding shaft extends into the thread cavity and is slidably connected with the sliding groove, the cross section of the sliding shaft and the cross section of the sliding groove are square, the thread block drives the sliding shaft to rotate around the sliding space when rotating, the meshing gear rotates around the toothed ring to enable the toothed ring to rotate, the thread block can lift when rotating, and the sliding shaft and the thread block always keep a connection state.

Wherein, the supporting device comprises a rotating cavity of a circular array, the first supporting plate is rotatably arranged in the rotating cavity through a supporting rotating shaft, the width of the first supporting plate positioned in the rotating cavity is smaller than that of the first supporting plate positioned outside, the contact area between the first supporting plate and the ground is increased, an expansion spring is fixedly arranged between one end of the first supporting plate close to the center of the array and the rotating cavity, one side of the rotating cavity far away from the center of the array is communicated with the outside and provided with a slot, one end wall of the rotating cavity close to the center of the array is rotatably provided with a first bevel gear, the center of the first bevel gear is fixedly provided with a gear rotating shaft, the gear rotating shafts at opposite positions are in power connection through synchronous belts, two synchronous belts are independently inserted, and the synchronous belts in the front-back direction pass through the middle of the gear rotating shafts in the left-, the rear end of the gear rotating shaft on the right side and the right end of the gear rotating shaft on the rear side are respectively and fixedly provided with a transmission gear, the two transmission gears are meshed and connected, and the front end of the gear rotating shaft on the right side is in power connection with a rotating motor, so that the four first bevel gears can be driven to synchronously rotate when the rotating motor works.

Preferably, the screw thread piece with when first backup pad breaks away from, expanding spring extends to natural state, and first backup pad is the state of leaning out this moment, and its effect is, reduces the space size of first backup pad just be difficult for piling up sand and soil on the first backup pad, it is convenient to walk.

The extension device comprises a self-locking groove, a worm is arranged in the self-locking groove in a rotating mode through a worm shaft, one end, close to the center of the array, of the worm shaft extends to the rotating cavity and is fixedly provided with a second bevel gear, the second bevel gear is meshed with the first bevel gear, one end of the worm is meshed with a worm wheel, a lead screw is fixedly arranged at the center of the worm wheel, a telescopic groove is formed in the first supporting plate, the lower end of the lead screw extends to the inside of the telescopic groove and is in threaded connection with the upper end of the second supporting plate, so that the second supporting plate can stretch and retract when the lead screw rotates, the common supporting area of the first supporting plate and the second supporting plate is increased, and the worm wheel and the self-locking structure of the worm can keep the stability of the.

Preferably, be equipped with the slip chamber in the cane point, slip chamber left end wall is equipped with the guide way, slidable is equipped with the guide block in the guide way, the guide block lower extreme has set firmly pressure spring, sliding block slidable set up in the slip intracavity just the sliding block with guide block fixed mounting, be equipped with the accepting groove in the sliding block, install the installation piece through the installation hub rotation in the accepting groove, the accepting groove with the torsional spring has set firmly between the installation piece, install on the installation piece and grab the ground sword, thereby make during the axis of rotation the sliding block descends and extends to the external world, then grab the ground sword and rotate ninety degrees, can provide when climbing and grab the land fertility.

The invention has the beneficial effects that: according to the climbing stick, the opening force of the climbing stick to the ground is increased through the first supporting plate and the second supporting plate which are automatically unfolded and retracted, the climbing stick is prevented from being sunk into a sand ground or a mud ground, the supporting force of the climbing stick is improved, the opening area between the first supporting plate and the second supporting plate can be adjusted according to the softness degree of geology, the supporting force is adjusted, the using range is wide, the natural state of the supporting plates is in an inclined state, the walking of people cannot be hindered, in addition, the ground grabbing knife is arranged in the climbing stick, the ground grabbing force can be increased, a force applying point and traction force are provided for climbing, and convenience is provided for climbing.

Drawings

For ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of an outdoor sports alpenstock according to the present invention;

FIG. 2 is an enlarged schematic view of "A" of FIG. 1;

FIG. 3 is an enlarged view of "B" of FIG. 1;

FIG. 4 is an enlarged view of the structure of "C" of FIG. 3;

FIG. 5 is a schematic view of the structure in the direction "D-D" of FIG. 3;

FIG. 6 is a schematic view of the structure in the direction "E-E" of FIG. 5;

FIG. 7 is an enlarged view of "F" of FIG. 3;

FIG. 8 is a schematic view of the structure in the direction of "G-G" in FIG. 3

Fig. 9 is a schematic view of the "first support plate is opened" structure of fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-9, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to an outdoor sport alpenstock which is mainly used for outdoor mountaineering, and the invention is further explained by combining the attached drawings of the invention as follows:

the invention relates to an outdoor sport alpenstock, which comprises a supporting rod 10, wherein a handle 11 is arranged at the upper end of the supporting rod 10, a lifting cavity 18 is arranged in the supporting rod 10, a rotating device 90 is arranged at the upper side of the lifting cavity 18, the rotating device 90 comprises a rotating shaft 16 and a rotating gear 15, the upper part of the rotating shaft 16 is in a spline shape, the lower part of the rotating shaft 16 is in a thread shape, the spline part of the rotating shaft 16 is in spline connection with the inner diameter spline structure of the rotating gear 15, an operating block 54 is fixedly arranged at the lower end surface of the supporting rod 10, a transmission device 89 is arranged in the operating block 54, the transmission device 89 comprises a rotatable toothed ring 70, the inner diameter of the toothed ring 70 is in a thread structure, a sliding space 60 is arranged in the operating block 54, a cane tip 21 with the upper end extending into the lifting cavity 18 is slidably arranged in the, the pole tip 21 is in threaded connection with the inner diameter of the gear ring 70, a threaded cavity 40 with a threaded inner end wall is arranged on the periphery of the sliding space 60, a rotatable threaded block 41 is connected to the threaded cavity 40 in a threaded fit manner, the threaded block 41 can drive the gear ring 70 to rotate when rotating, so that the pole tip 21 can ascend and descend, four supporting devices 88 arranged by taking the sliding space 60 as an array central annular array are arranged on the lower side of the threaded cavity 40, each supporting device 88 comprises a rotatable first supporting plate 45, when the inner wall of the threaded block 41 is abutted to the first supporting plate 45, the first supporting plate 45 contracts, the threaded block 41 is separated from the first supporting plate 45, the first supporting plate 45 is unfolded outwards, the first supporting plate 45 has a supporting function on the supporting rod 10, an extension device 87 is arranged in the first supporting plate 45, and the extension device 87 comprises a telescopic second supporting plate 66, the size of the adjustable supporting area of the second supporting plate 66 and the first supporting plate 45, a sliding block 23 is slidably arranged in the pole tip 21, the sliding block 23 is in threaded connection with the rotating shaft 16, so that the sliding block 23 can ascend and descend when the rotating shaft 16 rotates, a rotatable ground grabbing knife 30 is arranged in the sliding block 23, and after the sliding block 23 descends, the ground grabbing knife 30 can be opened in a rotating mode and is used for providing ground grabbing force during climbing and a thorny road surface.

Advantageously, a limit groove 19 is formed in the right end wall of the lifting cavity 18, a limit block 20 is slidably disposed in the limit groove 19, and the left end of the limit block 20 is fixedly mounted on the pin tip 21, so that when the toothed ring 70 rotates, the pin tip 21 is lifted due to the threaded connection between the toothed ring 70 and the pin tip 21.

According to the embodiment, the rotating device 90 is described in detail below, the rotating device 90 includes a toggle groove 14, the rotating gear 15 is rotatably installed in the toggle groove 14, a toggle gear 17 is engaged and connected to the right end of the rotating gear 15, the right end of the toggle gear 17 extends to the outside, a groove 13 is formed in the upper end of the toggle groove 14 in a communicating manner, the upper end of the rotating shaft 16 extends into the groove 13, a lifting cavity 18 is formed in the lower side of the toggle groove 14, the lifting cavity 18 is communicated with the sliding space 60, and therefore the toggle gear 17 drives the rotating shaft 16 to rotate when rotating.

According to the embodiment, the transmission device 89 is described in detail below, the transmission device 89 includes a meshing cavity 34, the gear ring 70 is rotatably installed in the meshing cavity 34, a meshing gear 36 is connected to the right end of the gear ring 70 in a meshing manner, a sliding shaft 39 is fixedly arranged at the center of the meshing gear 36, an annular groove 37 is formed in the lower side of the meshing cavity 34 in a communicating manner, an annular plate 38 is slidably arranged in the annular groove 37, the lower end of the sliding shaft 39 extends into the threaded cavity 40, and the sliding shaft 39 is rotatably connected with the annular plate 38 through a bearing.

Advantageously, a sliding groove 42 is formed in the screw block 41, the lower end of the sliding shaft 39 extends into the screw cavity 40 and is slidably connected with the sliding groove 42, the cross sections of the sliding shaft 39 and the sliding groove 42 are square, when the screw block 41 rotates, the sliding shaft 39 is driven to rotate around the sliding space 60, the meshing gear 36 rotates around the toothed ring 70, the toothed ring 70 rotates, when the screw block 41 rotates, the screw block 41 is lifted, and the sliding shaft 39 and the screw block 41 are always connected.

According to the embodiment, the supporting device 88 is described in detail below, the supporting device 88 includes a circular array of rotating cavities 43, the first supporting plate 45 is rotatably installed in the rotating cavities 43 through supporting rotating shafts 44, the width of the first supporting plate 45 in the rotating cavities 43 is smaller than the width of the first supporting plate 45 outside, the contact area between the first supporting plate 45 and the ground is increased, a telescopic spring 46 is fixedly arranged between one end of the first supporting plate 45 close to the center of the array and the rotating cavities 43, a slot 80 is arranged on one side of the rotating cavities 43 far from the center of the array and communicated with the outside, a first bevel gear 56 is rotatably installed on one end wall of the rotating cavities 43 close to the center of the array, a gear rotating shaft 57 is fixedly arranged at the center of the first bevel gear 56, the gear rotating shafts 57 opposite to each other are dynamically connected through a synchronous belt 58, the two synchronous belts 58 are independently inserted, the synchronous belts 58 in the front-back direction pass through the middle of the gear rotating shaft 57 in the left-right direction, the transmission gears 75 are fixedly arranged at the rear end and the rear end of the gear rotating shaft 57 on the right side, the two transmission gears 75 are meshed and connected, the front end of the gear rotating shaft 57 on the right side is dynamically connected with a rotating motor 59, and therefore when the rotating motor 59 works, the four first bevel gears 56 can be driven to synchronously rotate.

Advantageously, when the screw block 41 is disengaged from the first support plate 45, the extension spring 46 extends to a natural state, and the first support plate 45 is inclined outward, so as to reduce the size of the space of the first support plate 45, and the first support plate 45 is not easy to accumulate sand, thereby facilitating walking.

According to the embodiment, the extension device 87 is described in detail below, the extension device 87 includes a self-locking groove 47, a worm 49 is rotatably disposed in the self-locking groove 47 through a worm shaft 50, one end of the worm shaft 50 near the center of the array extends into the rotating cavity 43 and is fixedly provided with a second bevel gear 55, the second bevel gear 55 is in meshed connection with the first bevel gear 56, one end of the worm 49 is in meshed connection with a worm wheel 48, a lead screw 53 is fixedly disposed at the center of the worm wheel 48, a telescopic groove 51 is disposed in the first support plate 45, a lower end of the lead screw 53 extends into the telescopic groove 51 and is in threaded connection with an upper end of the second support plate 66, so that when the lead screw 53 rotates, the second support plate 66 can be made to extend and retract, the common support area of the first support plate 45 and the second support plate 66 is increased, the self-locking structure of the worm wheel 48 and the worm 49, the stability of the device can be maintained.

Beneficially, a sliding cavity 22 is arranged in the pole tip 21, a guide groove 25 is arranged on the left end wall of the sliding cavity 22, a guide block 26 is slidably arranged in the guide groove 25, a pressure spring 27 is fixedly arranged at the lower end of the guide block 26, the sliding block 23 is slidably arranged in the sliding cavity 22, the sliding block 23 is fixedly mounted on the guide block 26, an accommodating groove 29 is arranged in the sliding block 23, a mounting block 31 is rotatably mounted in the accommodating groove 29 through a mounting shaft 32, a torsion spring 33 is fixedly arranged between the accommodating groove 29 and the mounting block 31, and a ground-grasping knife 30 is mounted on the mounting block 31, so that when the rotating shaft 16 rotates, the sliding block 23 descends and extends to the outside, and then the ground-grasping knife 30 rotates ninety degrees to provide ground-grasping force for climbing.

The steps of using an outdoor sports alpenstock disclosed herein will be described in detail below with reference to fig. 1 to 9:

initially, the thread block 41 abuts against the first support plate 45 to close the first support plate 45, and at this time, the extension spring 46 is compressed, the ground-grasping blade 30 is retracted into the receiving groove 29, and the torsion spring 33 is compressed.

When the protective pad is used, the handle 11 is held by hand, the lower end of the pole tip 21 is in contact with the ground, a supporting force can be provided for mountaineering, when the protective pad walks on sand or on the ground with soft ground, the lower end of the pole tip 21 is sunk into the ground, the thread block 41 is manually rotated to enable the thread block 41 to rotate and rise, the first supporting plate 45 is rotated outwards under the elastic restoring force of the telescopic spring 46, at the moment, the first supporting plate 45 is obliquely arranged, the telescopic spring 46 is in a natural state, the thread block 41 drives the sliding shaft 39 to revolve in the rotating and rising process, the toothed ring 70 is rotated through the meshing gear 36, the pole tip 21 is enabled to rise, the protective pad 12 is located on the lower side of the sliding space 60, the contact height between the pole tip 21 and the ground is reduced, and labor;

then, the support areas of the first support plate 45 and the second support plate 66 are adjusted according to the softness of the geology, the rotating motor 59 is operated to drive the gear rotating shaft 57 to rotate, the four first bevel gears 56 are synchronously rotated by the transmission of the synchronous belt 58 and the transmission gear 75, the second bevel gear 55 rotates to drive the worm 49 to rotate, the worm gear 48 rotates to drive the lead screw 53 to rotate, the second support plate 66 descends to increase the opening area between the first support plate 45 and the second support plate 66 to increase the support force, when the pole tip 21 is supported downwards, the first support plate 45 rotates to the horizontal due to the obstruction of the ground, the expansion spring 46 is stretched, when the pole tip 21 is lifted upwards, the first support plate 45 is folded to the inclined state under the elasticity of the expansion spring 46, and the first support plate 45 does not collide with the movement of the pole tip 21 or the swing of the legs of a person due to the size of the support area, the mud on the first support plate 45 and the second support plate 66 can fall off by the gravity of the first support plate and the second support plate, and the weight of the cane tip 21 can not be increased;

during the climbing, rotate toggle gear 17, drive the rotation gear 15 and rotate, then axis of rotation 16 rotates, make sliding block 23 descend, then grab ground sword 30 and remove when the external world does not receive the hindrance of slip chamber 22 left end wall, grab ground sword 30 and rotate to the level under torsional spring 33 elastic restoring force, during the climbing, grab ground sword 30 inserts in the mountain body, it can regard as the human antedisplacement of pulling force pulling to hold branch 10, provide traction force, it is laborsaving, manual rotation grab ground sword 30 to the accepting groove 29 in, again reverse rotation toggle gear 17 can make sliding block 23 rise, then grab ground sword 30 resets.

In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.

Claims

1. The utility model provides an outdoor exercises alpin-stock, includes branch, its characterized in that:

the handle is installed at the upper end of the supporting rod, a lifting cavity is arranged in the supporting rod, a rotating device is arranged on the upper side of the lifting cavity and comprises a rotating shaft and a rotating gear, the upper part of the rotating shaft is in a spline shape, the lower part of the rotating shaft is in a thread shape, the spline part of the rotating shaft is in spline connection with the spline structure of the internal diameter of the rotating gear, an operation block is fixedly arranged on the lower end face of the supporting rod, a transmission device is arranged in the operation block and comprises a rotatable toothed ring, the internal diameter of the toothed ring is in a thread structure, a sliding space is arranged in the operation block, a cane tip with the upper end extending into the lifting cavity is slidably arranged in the sliding space, a protective pad is sleeved at the lower end of the cane tip and is in threaded connection with the internal diameter of the toothed ring, a thread cavity with the internal, when the thread block rotates, the tooth ring can be driven to rotate, so that the cane point is lifted; the lower side of the threaded cavity is provided with four supporting devices which are arranged by taking the sliding space as an array central annular array, each supporting device comprises a rotatable first supporting plate, when the inner wall of each threaded block is abutted against the first supporting plate, the first supporting plate is contracted, the threaded block is separated from the first supporting plate, the first supporting plate is unfolded outwards, the first supporting plate has a supporting effect on the supporting rod, an extension device is arranged in the first supporting plate, the extension device comprises a telescopic second supporting plate, the size of an adjustable supporting area of the second supporting plate and the first supporting plate is larger, a sliding block is slidably arranged in the crutch tip, the sliding block is in threaded connection with the rotating shaft, the sliding block can be lifted when the rotating shaft rotates, and a rotatable ground grabbing knife is arranged in the sliding block, after the sliding block descends, the ground grabbing knife can be rotated and opened, and is used for providing ground grabbing force during climbing and using on a thorny road surface; a limiting groove is formed in the right end wall of the lifting cavity in a communicated manner, a limiting block is slidably arranged in the limiting groove, and the left end of the limiting block is fixedly installed with the cane point; the rotating device comprises a toggle groove; the rotating gear is rotatably installed in the shifting groove, the right end of the rotating gear is connected with the shifting gear in a meshed mode, the right end of the shifting gear extends to the outside, a groove is formed in the upper end of the shifting groove in a communicated mode, the upper end of the rotating shaft extends into the groove, a lifting cavity is formed in the lower side of the shifting groove and is communicated with the sliding space; the transmission comprises an engagement cavity; the gear ring is rotatably installed in the meshing cavity, the right end of the gear ring is meshed with a meshing gear, a sliding shaft is fixedly arranged at the center of the meshing gear, the lower side of the meshing cavity is communicated with an annular groove, an annular plate is slidably arranged in the annular groove, the lower end of the sliding shaft extends into the threaded cavity, and the sliding shaft is rotatably connected with the annular plate through a bearing; a sliding groove is formed in the thread block, the lower end of the sliding shaft extends into the thread cavity and is in slidable connection with the sliding groove, and the cross sections of the sliding shaft and the sliding groove are square; the supporting device comprises an annular array of rotating cavities; the first supporting plate is rotatably arranged in the rotating cavity through a supporting rotating shaft, the width of the first supporting plate in the rotating cavity is smaller than that of the first supporting plate positioned outside, the contact area between the first supporting plate and the ground is increased, a telescopic spring is fixedly arranged between one end, close to the center of the array, of the first supporting plate and the rotating cavity, and one side, far away from the center of the array, of the rotating cavity is communicated with the outside and provided with a groove; a first bevel gear is rotatably mounted in one end wall of the rotating cavity close to the center of the array, a gear rotating shaft is fixedly arranged at the center of the first bevel gear, the gear rotating shafts at opposite positions are in power connection through synchronous belts, the two synchronous belts are independently arranged in an inserting manner, the synchronous belts in the front-back direction pass through the middle of the gear rotating shafts in the left-right direction, transmission gears are fixedly arranged at the rear end of the gear rotating shaft on the right side and the right end of the gear rotating shaft on the rear side, the two transmission gears are in meshed connection, and the front end of the gear rotating shaft on the right side is in power connection; when the thread block is separated from the first supporting plate, the telescopic spring extends to a natural state, and the first supporting plate is in an outward inclined state; the extension device comprises a self-locking groove; a worm is rotatably arranged in the self-locking groove through a worm shaft, one end, close to the center of the array, of the worm shaft extends into the rotating cavity and is fixedly provided with a second bevel gear, the second bevel gear is in meshed connection with the first bevel gear, one end of the worm is in meshed connection with a worm wheel, a lead screw is fixedly arranged at the center of the worm wheel, a telescopic groove is arranged in the first supporting plate, and the lower end of the lead screw extends into the telescopic groove and is in threaded connection with the upper end of the second supporting plate; a sliding cavity is arranged in the stick tip; the sliding cavity left end wall is equipped with the guide way, slidable is equipped with the guide block in the guide way, the guide block lower extreme has set firmly pressure spring, sliding block slidable set up in the sliding cavity just the sliding block with guide block fixed mounting, be equipped with the accepting groove in the sliding block, install the installation piece through installation hub rotation in the accepting groove, the accepting groove with the torsional spring has set firmly between the installation piece, install on the installation piece and grab the ground sword.