CN212016551U

CN212016551U - High jump stand

Info

Publication number: CN212016551U
Application number: CN202020368230.4U
Authority: CN
Inventors: 李剑刚; 蔡洁
Original assignee: Jiangsu Jinling Sports Equipment Co ltd
Current assignee: Jiangsu Jinling Sports Equipment Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-11-27
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a jumping stand, include: the top of the base is provided with an upright post, the side wall of the upright post is provided with a strip-shaped long hole, the lower part of the upright post is supported with a lower synchronous belt wheel shaft, the lower synchronous belt wheel shaft is sleeved with a lower synchronous belt wheel, the upper part of the upright post is provided with an upper synchronous belt wheel, the upper synchronous belt wheel is arranged in the upright post through a longitudinal movement adjusting mechanism, a synchronous belt is wound between the upper synchronous belt wheel and the lower synchronous belt wheel, a sliding seat which is arranged in the strip-shaped long hole in a sliding manner is fixedly connected to the synchronous belt, and a plurality of hooks; the structure of the transmission self-locking mechanism comprises: the first rotating shaft is movably supported at the lower part of the upright post, the shaft end of the first rotating shaft is connected with a crank, a worm is arranged above the first rotating shaft, the first rotating shaft drives the worm to rotate through a first speed-up gear set, a second rotating shaft is movably supported in an inner cavity of the upright post above the worm, a worm wheel is arranged on the second rotating shaft, and the second rotating shaft drives the synchronous pulley shaft and the lower synchronous pulley to rotate through a second speed-up gear set. The utility model has the advantages of time saving and labor saving.

Description

High jump stand

Technical Field

The utility model relates to a high jump exerciser technical field, concretely relates to high jump frame.

Background

High jump is one of the track and field events in track and field sports. The sport is composed of rhythmic running, single-foot jumping, jumping over a high jump rod and landing, and the like, and the score is calculated according to the height over the upper edge of the high jump rod. The high jump pole is supported between two high jump stands. Jumping stand on the existing market generally comprises base, the vertical stand that sets up on the base to and a plurality of vaulting poles that are interval distribution about being on the stand lateral wall and be used for supporting the high jump pole. At present, the height of the high jump rod is adjusted by horizontally placing the high jump rod on the support rods with different heights manually, which wastes time and labor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a labour saving and time saving, can conveniently carry out the jumping stand of adjusting to the high jump pole height.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a jumping stand, comprising: the device comprises a base, wherein a hollow upright post is vertically arranged at the top of the base, a strip-shaped long hole is axially formed in the side wall of the upright post, a lower synchronous belt wheel shaft is movably supported in an inner cavity at the lower part of the upright post, a lower synchronous belt wheel is sleeved on the lower synchronous belt wheel shaft, an upper synchronous belt wheel is arranged in an inner cavity at the upper part of the upright post, the upper synchronous belt wheel can be vertically arranged in the upright post through a longitudinal movement adjusting mechanism, a synchronous belt is wound between the upper synchronous belt wheel and the lower synchronous belt wheel, a sliding seat which is slidably arranged in the strip-shaped long hole is fixedly connected to the synchronous belt, a plurality of hooks for horizontally hanging a jump rod are arranged on the outer side of the sliding seat, the lower synchronous belt wheel is driven to rotate by a transmission self-locking mechanism, the upper synchronous belt wheel and the synchronous belt can be driven to rotate when the; the structure of the transmission self-locking mechanism comprises: the worm gear is sleeved on the second rotating shaft, the second rotating shaft drives the synchronous belt wheel shaft to rotate through the second speed-increasing gear set, and therefore the synchronous belt wheel shaft is driven to rotate so as to drive the synchronous belt wheel to rotate.

Further, the jumping stand described above, wherein: the structure of the longitudinal movement adjusting mechanism comprises: the top of the upright post is provided with a top cover, the top cover is provided with a mounting hole which vertically penetrates through the top cover, a wheel carrier used for supporting the upper synchronous belt wheel is movably arranged in an inner cavity at the upper part of the upright post, a tightening screw rod is vertically fixed at the top of the wheel carrier, the upper end of the tightening screw rod extends out of the mounting hole and is in threaded connection with a tightening nut, the wheel carrier is hung on the top cover through the tightening nut, the tightening screw rod can move upwards when the tightening nut rotates, and the wheel carrier and the upper synchronous belt wheel are synchronously driven to move upwards to tighten the synchronous belt.

Further, the jumping stand described above, wherein: the structure of the first speed-up gear set comprises: the first gear is fixedly sleeved on the first rotating shaft, and the second gear is fixedly sleeved on the worm and meshed with the first gear.

Further, the jumping stand described above, wherein: the structure of the second speed-up gear set comprises: the third gear is fixedly sleeved on the second rotating shaft, the fourth gear is fixedly sleeved on the lower synchronous pulley shaft, the third rotating shaft is movably supported in an inner cavity of the upright post between the second rotating shaft and the lower synchronous pulley shaft, the fifth gear is fixedly sleeved on the third rotating shaft and is simultaneously meshed with the third gear and the fourth gear, the diameter of the third gear is larger than that of the fifth gear, and the diameter of the fourth gear is larger than that of the fifth gear.

Further, the jumping stand described above, wherein: the vertical guide rails are respectively and vertically arranged in the upright posts on the two sides of the sliding seat, a plurality of guide wheels which are arranged on the vertical guide rails on the corresponding sides in a sliding mode are respectively and fixedly arranged at the two ends of the sliding seat, and the sliding seat is matched with the vertical guide rails through the guide wheels to enable the opposite upright posts to stably lift.

Further, the jumping stand described above, wherein: the four corners of the base are respectively provided with an adjusting foot capable of adjusting the height, and the base can be supported on the playground through the adjusting feet.

Further, the jumping stand described above, wherein: the structure of adjusting the foot includes: the adjusting seat is fixedly installed on the side wall of the base, a threaded hole which penetrates through the adjusting seat from top to bottom is formed in the adjusting seat, an adjusting screw rod is arranged in the threaded hole in a threaded penetrating mode, and a cushion block is arranged at the lower end of the adjusting screw rod.

Further, the jumping stand described above, wherein: the bottom of the cushion block of the adjusting foot is provided with a flexible gasket.

Further, the jumping stand described above, wherein: the sliding seat is fixedly connected to the synchronous belt through a plurality of pressing plates and locking screws.

Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: labour saving and time saving, convenient operation can conveniently adjust the height of high jump pole to the regulation precision is high, guarantees the fairness of match.

Drawings

Fig. 1 is a schematic structural view of the jumping stand of the present invention.

Fig. 2 is an enlarged schematic view of a portion a shown in fig. 1.

Fig. 3 is an enlarged schematic view of a portion B shown in fig. 1.

Fig. 4 is a schematic diagram of the mutual position relationship among the first gear, the second gear, the third gear, the fourth gear and the fifth gear in the left-hand direction of fig. 3.

Fig. 5 is a schematic structural view of the adjustment foot shown in fig. 1.

Fig. 6 is a schematic view illustrating a connection relationship between the sliding shoe and the timing belt shown in fig. 1.

Fig. 7 is a schematic view of the structure in the right view direction of fig. 6.

Fig. 8 is a schematic view of the mutual position relationship between the sliding seat and the upright shown in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the jumping stand includes: the base 1, there are hollow columns 2 vertically on the top of the base 1, equip with the long hole of bar axially on the sidewall of the column 2, the lower synchronous pulley shaft 3 of the movable support in the lower cavity of the column 2, the lower synchronous pulley shaft 3 is fitted with the lower synchronous pulley 4, there are upper synchronous pulleys 5 in the upper cavity of the column 2, the upper synchronous pulley 5 can be set up in the column 2 by the longitudinal movement regulating mechanism and moving up and down, there are hold-in ranges 6 around between lower synchronous pulley 4 and the upper synchronous pulley 5, fixedly connect with the sliding seat 7 slidably set up in long hole of bar on the hold-in range 6, set up several hooks 8 used for hanging the jump-height pole horizontally on the outside of the sliding seat 7, the lower synchronous pulley 4 is driven to rotate by the transmission self-lock mechanism, can drive upper synchronous pulley 5 and hold-in range 6 to rotate, can drive the sliding seat 7 and hook 8 to move up and down synchronously when the hold-in range 6 rotates, thereby adjusting the height of the high jump rod; the structure of the transmission self-locking mechanism comprises: the movable support is in the first pivot 9 in 2 lower part inner chambers of stand, one side axle head of first pivot 9 stretches out stand 2 and is connected with crank 10, movable support has worm 11 in 2 inner chambers of stand above first pivot 9, first pivot 9 drives worm 11 through first speed-raising gear train and rotates, movable support has second pivot 12 in 2 inner chambers of stand above worm 11, the cover is equipped with worm wheel 13 with worm 11 engaged with on second pivot 12, second pivot 12 drives synchronous band pulley shaft 3 through second speed-raising gear train and rotates down, thereby synchronous band pulley 4 rotates under the drive, above-mentioned transmission self-locking mechanism's advantage is: on one hand, when the crank 10 stops rotating the first rotating shaft, the rotation of the lower synchronous pulley 4 can be effectively stopped in time through the self-locking function of the worm gear structure; on the other hand, the speed of the first speed-up gear set and the second speed-up gear set is increased, so that the defect of low transmission efficiency of a worm and gear structure is overcome, the transmission efficiency is high, and the crank 10 drives the first rotating shaft 9 to rotate for one circle so as to drive the lower synchronous belt pulley 4 to rotate for one circle;

in this embodiment, the structure of the longitudinal movement adjusting mechanism includes: the top cover 14 is arranged at the top of the upright post 2, the top cover 14 is provided with a mounting hole which vertically penetrates through the top cover, a wheel carrier 15 which is used for supporting the upper synchronous pulley 5 is movably arranged in an inner cavity at the upper part of the upright post 2, a tightening screw 16 is vertically fixed at the top of the wheel carrier 15, the upper end of the tightening screw 16 extends out of the mounting hole and is in threaded connection with a tightening nut 17, the wheel carrier 15 is hung on the top cover 14 through the tightening nut 17, the tightening screw 16 can move upwards when the tightening nut 17 rotates, the wheel carrier 15 and the upper synchronous pulley 5 are synchronously driven to move upwards to tighten the synchronous belt 6, the synchronous belt 6 is tensioned, the lower synchronous pulley 4 can be ensured to stably drive the synchronous belt 6 to rotate all the time, the operation stability and the use safety of the equipment are improved, and the longitudinal movement adjusting mechanism;

in this embodiment, the structure of the first speed-up gear set includes: a first gear 18 fixedly sleeved on the first rotating shaft 9, and a second gear 19 fixedly sleeved on the worm 11 and meshed with the first gear 18; the structure of the second speed-up gear set comprises: a third gear 20 fixedly sleeved on the second rotating shaft 12 and a fourth gear 21 fixedly sleeved on the lower synchronous pulley shaft 3, wherein a third rotating shaft 22 is movably supported in an inner cavity of the upright post 2 between the second rotating shaft 12 and the lower synchronous pulley shaft 3, the third rotating shaft 22 is fixedly sleeved with a fifth gear 23 which is simultaneously meshed with the third gear 20 and the fourth gear 21, the diameter of the third gear 20 is larger than that of the fifth gear 23, and the diameter of the fourth gear 21 is larger than that of the fifth gear 23;

in this embodiment, longitudinal guide rails are respectively vertically arranged in the upright posts 2 at two sides of the sliding seat 7, a plurality of guide wheels 24 which are slidably arranged on the longitudinal guide rails at the corresponding sides are respectively fixedly installed at two ends of the sliding seat 7, and the sliding seat 7 is matched with the longitudinal guide rails through the guide wheels 24 to stably lift relative to the upright posts; in the embodiment, the sliding seat 7 is fixedly connected to the synchronous belt 6 through a plurality of pressing plates 25 and locking screws 26, so that the assembly, disassembly and maintenance are more convenient;

in the embodiment, the four corners of the base 1 are respectively provided with an adjusting foot 27 capable of adjusting the height, the base 1 can be supported on the ground of the sports field through each adjusting foot 27, the height of the base 1 can be adjusted to be in a horizontal placement state through adjusting the height of the adjusting foot 27, and the horizontal placement of the high jump pole is further ensured; in this embodiment, the structure of the adjusting foot includes: the adjusting foot is fixedly arranged on an adjusting seat 271 on the side wall of the base 1, a threaded hole which vertically penetrates through the adjusting seat 271 is formed in the adjusting seat 271, an adjusting screw 272 penetrates through the threaded hole in a threaded manner, a cushion block 273 is arranged at the lower end of the adjusting screw 272, and a flexible gasket 274 is arranged at the bottom of the cushion block 273;

when the height of the high jump rod needs to be adjusted, the crank handle 10 drives the first rotating shaft 9 to rotate, the first rotating shaft 9 drives the first gear 18 to rotate, the first gear 18 drives the second gear 19 to rotate through meshing fit, the second gear 19 drives the worm 11 to rotate, the worm 11 drives the worm wheel 13 to rotate, the worm wheel 13 drives the second rotating shaft 12, the second rotating shaft 12 drives the third gear 20 to rotate, the third gear 20 drives the fifth gear 23 to rotate through meshing fit, the fifth gear 23 drives the fourth gear 21 to rotate through meshing fit, the fourth gear 21 drives the synchronous pulley shaft 3 to rotate, the lower synchronous pulley shaft 3 drives the lower synchronous pulley 4 to rotate, the lower synchronous pulley 4 drives the upper synchronous pulley 5 and the synchronous belt 6 to rotate, the synchronous belt 6 drives the sliding seat 7 and the hook 8 to move upwards or downwards along the strip-shaped long hole relative to the upright post when rotating, and therefore the height of the high jump rod horizontally hung on the hook 8 is adjusted.

The utility model has the advantages that: labour saving and time saving, convenient operation can conveniently adjust the height of high jump pole to the regulation precision is high, guarantees the fairness of match.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.

Claims

1. A jumping stand, comprising: base, its characterized in that: a hollow upright post is vertically arranged at the top of the base, a strip-shaped long hole is axially formed in the side wall of the upright post, a lower synchronous belt wheel shaft is movably supported in an inner cavity at the lower part of the upright post, a lower synchronous belt wheel is sleeved on the lower synchronous belt wheel shaft, an upper synchronous belt wheel is arranged in an inner cavity at the upper part of the upright post, the upper synchronous belt wheel can be vertically arranged in the upright post through a longitudinal movement adjusting mechanism, a synchronous belt is wound between the upper synchronous belt wheel and the lower synchronous belt wheel, a sliding seat which is slidably arranged in the strip-shaped long hole is fixedly connected to the synchronous belt, a plurality of hooks for horizontally hanging the jump-height rod are arranged on the outer side of the sliding seat, the lower synchronous belt wheel is driven to rotate by a transmission self-locking mechanism, the upper synchronous belt wheel and the synchronous belt can be driven to rotate when the lower synchronous belt; the structure of the transmission self-locking mechanism comprises: the worm gear is sleeved on the second rotating shaft, the second rotating shaft drives the synchronous belt wheel shaft to rotate through the second speed-increasing gear set, and therefore the synchronous belt wheel shaft is driven to rotate so as to drive the synchronous belt wheel to rotate.

2. The jumping stand of claim 1, wherein: the structure of the longitudinal movement adjusting mechanism comprises: the top of the upright post is provided with a top cover, the top cover is provided with a mounting hole which vertically penetrates through the top cover, a wheel carrier used for supporting the upper synchronous belt wheel is movably arranged in an inner cavity at the upper part of the upright post, a tightening screw rod is vertically fixed at the top of the wheel carrier, the upper end of the tightening screw rod extends out of the mounting hole and is in threaded connection with a tightening nut, the wheel carrier is hung on the top cover through the tightening nut, the tightening screw rod can move upwards when the tightening nut rotates, and the wheel carrier and the upper synchronous belt wheel are synchronously driven to move upwards to tighten the synchronous belt.

3. The jumping stand of claim 1, wherein: the structure of the first speed-up gear set comprises: the worm gear comprises a first gear fixedly sleeved on the first rotating shaft and a second gear fixedly sleeved on the worm and meshed with the first gear, wherein the diameter of the first gear is larger than that of the second gear.

4. The jumping stand of claim 1, wherein: the structure of the second speed-up gear set comprises: the third gear is fixedly sleeved on the second rotating shaft, the fourth gear is fixedly sleeved on the lower synchronous pulley shaft, the third rotating shaft is movably supported in an inner cavity of the upright post between the second rotating shaft and the lower synchronous pulley shaft, the fifth gear is fixedly sleeved on the third rotating shaft and is simultaneously meshed with the third gear and the fourth gear, the diameter of the third gear is larger than that of the fifth gear, and the diameter of the fourth gear is larger than that of the fifth gear.

5. The jumping stand of claim 1, 2, 3, or 4, wherein: the vertical guide rails are respectively and vertically arranged in the upright posts on the two sides of the sliding seat, a plurality of guide wheels which are arranged on the vertical guide rails on the corresponding sides in a sliding mode are respectively and fixedly arranged at the two ends of the sliding seat, and the sliding seat is matched with the vertical guide rails through the guide wheels to enable the opposite upright posts to stably lift.

6. The jumping stand of claim 1, 2, 3, or 4, wherein: the four corners of the base are respectively provided with an adjusting foot capable of adjusting the height, and the base can be supported on the playground through the adjusting feet.

7. The jumping stand of claim 6, wherein: the structure of adjusting the foot includes: the adjusting seat is fixedly installed on the side wall of the base, a threaded hole which penetrates through the adjusting seat from top to bottom is formed in the adjusting seat, an adjusting screw rod is arranged in the threaded hole in a threaded penetrating mode, and a cushion block is arranged at the lower end of the adjusting screw rod.

8. The jumping stand of claim 7, wherein: the bottom of the cushion block of the adjusting foot is provided with a flexible gasket.

9. The jumping stand of claim 1, wherein: the sliding seat is fixedly connected to the synchronous belt through a plurality of pressing plates and locking screws.