CN110841315A

CN110841315A - Multi-purpose safe hurdle structure for track and field

Info

Publication number: CN110841315A
Application number: CN201911173332.9A
Authority: CN
Inventors: 古晶; 邢坤权; 张磊; 汪广林; 韩蕊; 杜媛媛
Original assignee: Henan Polytechnic Institute
Current assignee: Henan Polytechnic Institute
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-02-28
Anticipated expiration: 2039-11-26
Also published as: CN110841315B

Abstract

The invention discloses a multi-purpose safe hurdle structure for track and field, which comprises a pair of fixed upright posts with the same structure, a pair of supporting legs with the same structure and a horizontal cross beam, wherein the side walls of the pair of fixed upright posts are respectively provided with a pair of rectangular notches with the same structure, the pair of supporting legs are respectively inserted into the rectangular notches and are rotatably connected with the fixed upright posts, the supporting legs are in rectangular groove-shaped structures, the horizontal cross beam is movably arranged between the pair of fixed upright posts, the invention selects a telescopic sleeve as the horizontal cross beam of the hurdle frame, the supporting legs of the hurdle frame are accommodated through a foldable accommodating part, and the vertical height of the horizontal cross beam on the hurdle frame is lifted by utilizing a lifting adjusting part, thereby improving the application range of the hurdle frame, and meeting the requirements of male schoolers of different ages and different heights, meanwhile, the hidden partition part is arranged on the fixed upright post of the hurdle frame, so that the hurdle frame can be used as a temporary guardrail.

Description

Multi-purpose safe hurdle structure for track and field

Technical Field

The invention relates to the technical field of sports training, in particular to a multipurpose safe hurdle structure for track and field.

Background

The crossing barrier is a basic life skill formed by human beings in long-term production and natural battles, is developed and evolved from the basic skill of crossing the barrier, is developed and evolved in the United kingdom, is evolved from a game of shepherd crossing a sheepfold fence by shepherds, is called as the barrier when people play sports, belongs to a male sports project, is set as a general barrier during early crossing, is buried on the ground, is changed into a support for sawing wood and firewood after, crosses the barrier, is dangerous, is easy to cause injury accidents, and also prevents the improvement of the crossing barrier technology, is sprint sports with strong technical requirements in track and field sports, and has the characteristic of crossing barrier technology, is different from the normal running technology, and crosses a certain number of barriers in high speed, the integrality to technical action, the harmony, the rhythm feels and has proposed strict requirement, it should be powerful to stride the fence action, link up, the rhythm feels strong, in the training of striding the fence simultaneously, it is then indispensable training equipment to stride the hurdle, however among the prior art, the frame construction of the most formula as an organic whole of hurdle strides, the railing generally adopts a holistic wooden or steel material board promptly, its both ends are fixed respectively on two cradling pieces, high fixity, the function is comparatively single, and because it is the integrated into one piece structure to stride the hurdle, inconvenient transportation is carried, in view of this, to the deep research of above-mentioned problem, tunnel and have the present case to produce.

Disclosure of Invention

The invention aims to solve the problems, designs a multipurpose safe hurdle structure for track and field, and solves the problems that most hurdle frames are integrated frame structures in the prior art, namely, a rail is generally made of an integrated wood or steel material plate, two ends of the rail are respectively fixed on two support rods, the height is fixed, the function is single, and the hurdle frames are of an integrated structure and are inconvenient to transport and carry.

The technical scheme of the invention for realizing the aim is as follows: a multipurpose safety hurdle structure for track and field comprises a pair of fixed stand columns with the same structure, a pair of supporting legs with the same structure and a horizontal cross beam, wherein a pair of rectangular notches with the same structure are formed in the side walls of the fixed stand columns respectively;

the folding storage part comprises: the vertical self-locking connecting hinge, the connecting ring, the limiting ring and the limiting rod;

the vertical self-locking connecting hinge is arranged in a rectangular notch on the fixed stand column, one end of the vertical self-locking connecting hinge is fixedly connected with the side wall of the fixed stand column, the other end of the vertical self-locking connecting hinge is fixedly connected with the side wall of the supporting leg, the connecting ring is arranged in the rectangular notch and is positioned on the side wall of the fixed stand column, the limiting ring is arranged in the supporting leg, one end of the limiting rod is movably sleeved on the limiting ring, and the other end of the limiting rod is in a hook shape and is matched with the connecting ring.

The lift adjustment portion includes: the movable upright post, the limiting groove, the elastic limiting component and the fastening bolt;

the fixing stand column is characterized in that a pair of threaded holes with the same structure are formed in the side wall of the upper end of the fixing stand column, a plurality of first through holes with the same structure are formed in the side wall surfaces of the two sides of the movable stand column and matched with the threaded holes in size, the movable stand column is movably inserted into the fixing stand column, the limiting groove is formed in the movable stand column, the elastic limiting assembly is arranged in the limiting groove, and the fastening bolt penetrates through the threaded holes and the first through holes in a spiral mode.

The spacing subassembly of elasticity includes: the spring, the rubber block and the pull rod;

the limiting groove is characterized in that a rectangular groove hole is formed in the upper end face of the limiting groove, the spring is arranged in the rectangular groove hole, one end of the rubber block extends into the rectangular groove hole and is fixedly connected with one end of the spring, and one end of the pull rod penetrates through the side wall of the limiting groove and the spring and is fixedly connected with the rubber block.

The concealed partition portion includes: the device comprises a rectangular groove, a telescopic containing assembly and a rotary clamping assembly;

the rectangular groove is arranged on the side wall of the fixed upright post, the telescopic storage assembly is arranged in the rectangular groove, one end of the telescopic storage assembly is fixedly connected with the inner wall of the rectangular groove, and the rotating clamping assembly is arranged on the side wall of the rectangular groove.

The flexible subassembly of accomodating includes: the device comprises a first connecting plate, a movable block, a scissor type telescopic frame, a limiting connecting plate and a sliding block;

the first connecting plate is arranged in the rectangular groove and fixedly connected with the side wall of the rectangular groove, a limiting slide way is formed in the first connecting plate, the movable block is movably sleeved on the limiting slide way, the lower end of one side of the scissor type telescopic frame is rotatably connected with the lower end of the first connecting plate, the upper end of one side of the scissor type telescopic frame is rotatably connected with the movable block, the limiting connecting plate is rotatably connected with the lower end of the other side of the scissor type telescopic frame, a sliding groove is formed in the limiting connecting plate, and the sliding block is movably sleeved on the sliding groove and is rotatably connected with the upper end of the other side of the scissor type telescopic frame.

The rotation clamping component comprises: the fixing device comprises a fixing pin, a rotating sheet and a fixing rod;

the fixing pin is arranged on the side wall of the rectangular groove, one end of the rotating sheet is movably sleeved on the fixing pin, the other end of the rotating sheet is provided with an arc-shaped notch, and the fixing rod is arranged on the side wall of the rectangular groove, corresponds to the fixing pin in position and is matched with the arc-shaped notch on the rotating sheet.

The sliding type card support portion includes: the clamping device comprises a limiting sleeve, a clamping locking assembly and a clamping support assembly;

the limiting sleeve is movably sleeved on the movable stand column, a rectangular through groove is formed in one side wall face of the limiting sleeve, the clamping locking assembly is arranged in the rectangular through groove in the limiting sleeve, an L-shaped groove hole is formed in the other side wall face of the limiting sleeve, the clamping support assembly is movably arranged in the L-shaped groove hole, and one end of the clamping support assembly is rotatably connected with the L-shaped groove hole.

The snap lock assembly includes: a fixed column, a cam and a handle;

the fixed column is arranged in the rectangular through groove on the limiting sleeve, two ends of the fixed column are fixedly connected with the limiting sleeve, the cam is movably sleeved on the fixed column, the wheel rim is attached to the side wall of the movable upright column, and the handle is fixedly arranged on the cam.

The card holds in palm the subassembly and includes: a rotation pin and a bearing plate;

the rotating pin is movably inserted into the L-shaped slot hole in the limiting sleeve, the upper end and the lower end of the rotating pin are rotatably connected with the limiting sleeve, the bearing plate is movably arranged in the L-shaped slot hole, and one end of the bearing plate is fixedly connected with the rotating pin.

Height scale lines are arranged on the side wall of the movable upright post, and corresponding elevation numerical values are marked.

The multipurpose safe hurdle structure for track and field manufactured by the technical scheme of the invention selects the telescopic pipe as the horizontal beam of the hurdle frame, the support legs of the hurdle frame are accommodated by the folding accommodating part, the vertical height of the horizontal beam on the hurdle frame is lifted by the lifting adjusting part, so that the application range of the hurdle frame is improved, male and female students in different age groups and different height requirements can be satisfied for use, meanwhile, the hidden partition part is arranged on the fixed upright post of the hurdle frame, the hurdle frame can be used as a temporary guardrail, the purpose of the hurdle frame is increased, the sliding type clamping part is arranged on the lifting adjusting part, the horizontal beam can be taken down, the sliding type clamping part is adjusted to be in proper height, two ends of the horizontal beam after being unfolded are lapped on the sliding type clamping part, the hurdle frame can be used as an auxiliary support for high jump training, and the application range of the hurdle frame is greatly improved, simple structure, assembly and disassembly are convenient, portable, and the usage is extensive, has solved prior art, strides the frame construction of the most formula as an organic whole of hurdle, and the railing generally adopts a holistic wooden or steel material board promptly, and its both ends are fixed respectively on two cradling pieces, highly fixed, function comparatively single, and owing to stride the hurdle and be the integrated into one piece structure, inconvenient transportation problem of carrying.

Drawings

Fig. 1 is a schematic front view of a multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 2 is a schematic structural view of the position a-a of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 3 is a schematic side view of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 4 is a partially enlarged schematic structural view of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 5 is a schematic view of the structure of the position a of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 6 is a schematic view of the structure of the position b of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 7 is a schematic view of the structure of the position c of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 8 is a schematic view of a structure of a position d of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 9 is a schematic view of the structure of the e-position of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 10 is a schematic view of the f-position structure of the multi-purpose track and field safety hurdle structure according to the present invention.

Fig. 11 is a front view schematically showing the structure of the hidden partition of the multi-purpose safety hurdle structure for track and field in an unfolded state.

In the figure: 1-fixing the upright post; 2-supporting legs; 3-horizontal beam; 4-vertical self-locking connecting hinge; 5-connecting rings; 6-a limiting ring; 7-a limiting rod; 8-a movable upright post; 9-a limiting groove; 10-fastening bolts; 11-a spring; 12-a rubber block; 13-a pull rod; 14-rectangular groove; 15-a first connection plate; 16-a movable block; 17-scissor jack; 18-a spacing connection plate; 19-a slider; 20-a fixed pin; 21-a rotor plate; 22-a fixation rod; 23-a stop collar; 24-fixed columns; 25-a cam; 26-a handle; 27-a rotation pin; 28-support plate.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1-11, a multi-purpose safety hurdle structure for track and field comprises a pair of fixed upright posts 1 with the same structure, a pair of supporting legs 2 with the same structure and a horizontal beam 3, wherein a pair of rectangular notches with the same structure are respectively arranged on the side walls of the fixed upright posts 1, the pair of supporting legs 2 are respectively inserted into the rectangular notches and rotatably connected with the fixed upright posts 1, the supporting legs 2 are in a rectangular groove structure, the horizontal beam 3 is movably arranged between the fixed upright posts 1, the horizontal beam 3 is a telescopic adjustable rod piece, a folding type accommodating part is arranged between the fixed upright posts 1 and the supporting legs 2, the fixed upright posts 1 are provided with lifting adjusting parts and connected with the horizontal beam 3, and two side walls of the fixed upright posts 1 are provided with hidden type partition parts, promote to be provided with slidingtype card support portion on the regulating part, foldable storage section includes: perpendicular auto-lock joint hinge 4, go-between 5, spacing ring 6 and gag lever post 7, perpendicular auto-lock joint hinge 4 install in the rectangle breach on the stationary mast 1, and one end with 1 lateral wall fixed connection of stationary mast, the other end with 2 lateral wall fixed connection of supporting leg, go-between 5 install in the rectangle breach, just be located on the 1 lateral wall of stationary mast, spacing ring 6 install in fixed the installation in supporting

leg

2, 7 one end activity suit of gag lever post in on the spacing ring 6, and the other end be hook-shaped and with go-between 5 phase-matches, it includes to promote regulating part: activity stand 8, spacing groove 9, the spacing subassembly of elasticity and fastening bolt 10, set up the same screw hole of a pair of structure on the 1 upper end lateral wall of fixed stand, set up a plurality of first through-holes that the structure is the same on the 8 both sides lateral wall faces of activity stand and with screw hole size phase-match, the activity cartridge of activity stand 8 in fixed stand 1, spacing groove 9 install in on the activity stand 8, the spacing subassembly of elasticity install in the spacing groove 9, fastening bolt 10 spiral run through in screw hole and first through-hole, the spacing subassembly of elasticity includes: spring 11, block rubber 12 and pull rod 13, the rectangular groove hole has been seted up on the 9 up end of spacing groove, spring 11 install in the rectangular groove hole, block rubber 12 one end stretch into in the rectangular groove hole, and with 11 one end fixed connection of spring, pull rod 13 one end run through in 9 lateral walls of spacing groove and spring 11, and with block rubber 12 fixed connection, hidden wall portion includes: rectangular groove 14, flexible storage assembly and rotate the solid subassembly of card, rectangular groove 14 install in on the 1 lateral wall of fixed post, flexible storage assembly install in rectangular groove 14, and one end with rectangular groove 14 inner wall fixed connection, it installs to rotate solid subassembly of card on rectangular groove 14 lateral wall, flexible storage assembly includes: first connecting plate 15, movable block 16, cut formula expansion bracket 17, spacing connecting plate 18 and sliding block 19, first connecting plate 15 install in rectangular groove 14, and with rectangular groove 14 lateral wall fixed connection, spacing slide has been seted up on the first connecting plate 15, movable block 16 activity suit in on the spacing slide, the lower extreme of cutting formula expansion bracket 17 one side with the lower extreme of first connecting plate 15 rotates to be connected, the upper end of cutting formula expansion bracket 17 one side with movable block 16 rotates to be connected, spacing connecting plate 18 with the lower extreme of cutting formula expansion bracket 17 opposite side rotates to be connected, the last sliding tray that has seted up of spacing connecting plate 18, sliding block 19 activity suit in on the sliding tray, and with the upper end of cutting the opposite side of formula expansion bracket 17 rotates to be connected, it includes to rotate the card solid subassembly: fixed pin 20, rotor plate 21 and dead lever 22, fixed pin 20 install in on the 14 lateral walls of rectangular groove, the one end activity suit of rotor plate 21 in on the fixed pin 20, the arc breach has been seted up on the other end of rotor plate 21, dead lever 22 install in on the 14 lateral walls of rectangular groove, and with fixed pin 20 positions correspond each other and with the arc breach phase-match on the rotor plate 21, slidingtype card holds in the palm the portion and includes: stop collar 23, joint locking subassembly and card support subassembly, 23 activity suit in on the movable stand 8 of stop collar, the rectangle leads to the groove has been seted up on 23 side wall of stop collar, joint locking subassembly install in rectangle on the stop collar 23 leads to the inslot, L type slotted hole has been seted up on 23 another side wall of stop collar, the activity of card support subassembly is installed in L type slotted hole, and one end with L type slotted hole rotates to be connected, joint locking subassembly includes: the fixing column 24 is arranged in the rectangular through groove on the limiting sleeve 23, two ends of the fixing column 24 are fixedly connected with the limiting sleeve 23, the cam 25 is movably sleeved on the fixing column 24, a wheel rim is attached to the side wall of the movable upright post 8, the handle 26 is fixedly arranged on the cam 25, and the clamping and supporting assembly comprises: rotating pin 27 and bearing board 28, the activity cartridge of rotating pin 27 in L type slotted hole on the stop collar 23 and upper and lower both ends all with stop collar 23 rotates and connects, bearing board 28 movable mounting is in L type slotted hole, and one end with rotating pin 27 fixed connection, be provided with the height scale mark on the activity stand 8 lateral wall, and mark corresponding elevation numerical value.

The characteristics of this embodiment do, including a pair of stationary mast 1 that the structure is the same, a pair of supporting leg 2 and horizontal beam 3 that the structure is the same, a pair of rectangle breach that the structure is the same has been seted up on 1 lateral wall of a pair of stationary mast respectively, a pair of supporting leg 2 cartridge respectively in the rectangle breach, and rotate with stationary mast 1 and be connected, supporting leg 2 is rectangular groove 14 column structure, horizontal beam 3 movable mounting is between a pair of stationary mast 1, and horizontal beam 3 is flexible adjustable member, be provided with foldable portion of accomodating between stationary mast 1 and the supporting leg 2, be provided with on the stationary mast 1 and promote the regulation portion, and be connected with horizontal beam 3, all be provided with hidden wall portion on 1 both sides of stationary mast, it blocks the sliding type card support portion to promote to be provided with on the regulation portion, foldable portion of: the vertical self-locking connecting hinge 4 is arranged in a rectangular notch on the fixed upright post 1, one end of the vertical self-locking connecting hinge 4 is fixedly connected with the side wall of the fixed upright post 1, the other end of the vertical self-locking connecting hinge 4 is fixedly connected with the side wall of the supporting leg 2, the connecting ring 5 is arranged in the rectangular notch and is positioned on the side wall of the fixed upright post 1, the limiting ring 6 is fixedly arranged in the supporting leg 2, one end of the limiting rod 7 is movably sleeved on the limiting ring 6, and the other end of the limiting rod is in a hook shape and is matched with the connecting ring 5; the telescopic sleeve is selected as the horizontal beam 3 of the hurdle frame, the supporting legs 2 of the hurdle frame are received through the folding receiving part, the lifting adjusting part is utilized to lift the vertical height of the horizontal beam 3 on the hurdle frame, so that the application range of the hurdle frame is improved, male and female students in different age groups and different height requirements can be met, meanwhile, the fixed upright post 1 of the hurdle frame is provided with the hidden partition part, the hurdle frame can be used as a temporary guardrail to increase the use of the hurdle frame, the lifting adjusting part is provided with the sliding type clamping part, the horizontal beam 3 can be taken down, the sliding type clamping part is adjusted to be positioned at a proper height, the two ends of the horizontal beam 3 are lapped on the sliding type clamping part after being unfolded, the horizontal beam can be used as an auxiliary support for high jump training, the application range of the hurdle frame is greatly improved, the structure is simple, and the assembly and disassembly are convenient, portable, and the usage is extensive, has solved prior art, strides the frame construction of the most formula as an organic whole of hurdle, and the railing generally adopts a holistic wooden or steel material board promptly, and its both ends are fixed respectively on two cradling pieces, and highly fixed, function are comparatively single, and owing to stride the hurdle structure as an organic whole, inconvenient transportation problem of carrying.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

Example (b): as can be known from the attached drawings 1-11 of the specification, the scheme includes a pair of fixed upright posts 1 with the same structure, a pair of supporting legs 2 with the same structure and a horizontal cross beam 3, the position relation and the connection relation are as follows, a pair of rectangular notches with the same structure are respectively arranged on the side walls of the fixed upright posts 1, the supporting legs 2 are respectively inserted in the rectangular notches and are rotatably connected with the fixed upright posts 1, the supporting legs 2 are in rectangular groove-shaped structures, the horizontal cross beam 3 is movably arranged between the fixed upright posts 1 and is a telescopic adjustable rod piece, a folding storage part is arranged between the fixed upright posts 1 and the supporting legs 2, a lifting adjusting part is arranged on the fixed upright posts 1 and is connected with the horizontal cross beam 3, hidden partition parts are arranged on the side wall surfaces of the fixed upright posts 1, and a sliding type clamping and supporting part is arranged; the folding storage part comprises: the vertical self-locking connecting hinge 4, the connecting ring 5, the limiting ring 6 and the limiting rod 7 are arranged in a position relation and a connection relation, the vertical self-locking connecting hinge 4 is arranged in a rectangular notch on the fixed upright post 1, one end of the vertical self-locking connecting hinge is fixedly connected with the side wall of the fixed upright post 1, the other end of the vertical self-locking connecting hinge is fixedly connected with the side wall of the supporting leg 2, the connecting ring 5 is arranged in the rectangular notch and is positioned on the side wall of the fixed upright post 1, the limiting ring 6 is fixedly arranged in the supporting leg 2, one end of the limiting rod 7 is movably sleeved on the limiting ring 6, the other end of the limiting rod is in a hook shape and is matched with the connecting ring 5, when in use, a telescopic sleeve is selected as the horizontal beam 3 of the hurdle, the supporting leg 2 of the hurdle is accommodated through a folding accommodating part, the vertical height of the horizontal beam 3 on the hurdle, the multifunctional lifting hurdle frame can meet the requirements of male and female students of different ages and different heights, meanwhile, a hidden partition part is arranged on a fixed upright post 1 of the hurdle frame, the hurdle frame can be used as a temporary guardrail, the purpose of the hurdle frame is increased, a sliding type clamping part is arranged on a lifting adjusting part, a horizontal cross beam 3 can be taken down, the sliding type clamping part is adjusted to be in a proper height, two ends of the horizontal cross beam 3 are lapped on the sliding type clamping part after being unfolded, the multifunctional lifting hurdle frame can be used as an auxiliary support for high jump training, the application range of the hurdle frame is greatly improved, the supporting leg 2 is pulled, the supporting leg 2 is turned over downwards by 90 degrees at a vertical self-locking connecting hinge 4, and a limiting rod 7 is connected between a connecting ring 5 and a limiting ring 6, so that the whole supporting frame is stable;

as can be seen from fig. 1 to 6 of the specification, in the implementation process, the lifting adjusting part includes: activity stand 8, spacing groove 9, spacing subassembly of elasticity and fastening bolt 10, its position relation and relation of connection are as follows, set up the same screw hole of a pair of structure on the lateral wall of 1 upper end of fixed post, set up the same first through-hole of a plurality of structures on the 8 both sides lateral wall faces of activity stand, and with screw hole size phase-match, 8 activity cartridge of activity stand are in fixed post 1, spacing groove 9 is installed on activity stand 8, spacing subassembly of elasticity is installed in spacing groove 9, fastening bolt 10 spirals and runs through in screw hole and first through-hole, wherein the spacing subassembly of elasticity includes: a spring 11, a rubber block 12 and a pull rod 13, the position relation and the connection relation are as follows, a rectangular groove hole is arranged on the upper end face of a limit groove 9, the spring 11 is arranged in the rectangular groove hole, one end of the rubber block 12 extends into the rectangular groove hole and is fixedly connected with one end of the spring 11, one end of the pull rod 13 penetrates through the side wall of the limit groove 9 and the spring 11 and is fixedly connected with the rubber block 12, when in use, a fastening bolt 10 is taken down, the movable upright post 8 is lifted up according to the requirement of a user, the movable upright post 8 is lifted to a proper height, the fastening bolt 10 is spirally penetrated through a threaded hole and a first through hole to realize the locking and fixing of the movable post, the pull rod 13 is lifted up, the pull rod 13 drives the rubber block 12 in the limit groove 9 to move upwards, at the moment, the spring 11 is stressed and contracted, one end of a horizontal cross beam 3 is inserted into the limit groove 9, the pull rod 13 and the spring 11 are loosened to reset and expand, the rubber block 12 is pushed to press downwards, and the horizontal cross beam 3 is clamped and fixed;

as can be seen from fig. 1 to 11 of the specification, in the implementation process, the concealed partition comprises: rectangular groove 14, flexible storage assembly and rotate solid subassembly of card, its positional relationship and relation of connection are as follows, and rectangular groove 14 is installed on fixed stand 1 lateral wall, and flexible storage assembly installs in rectangular groove 14, and one end and the 14 inner wall fixed connection in rectangular groove, rotates solid subassembly of card and installs on rectangular groove 14 lateral wall, and wherein flexible storage assembly includes: first connecting plate 15, movable block 16, cut formula expansion bracket 17, spacing connecting plate 18 and sliding block 19, its position relation and relation of connection are as follows, first connecting plate 15 installs in rectangular groove 14, and with rectangular groove 14 lateral wall fixed connection, spacing slide has been seted up on first connecting plate 15, movable block 16 activity suit is on spacing slide, the lower extreme of cutting formula expansion bracket 17 one side rotates with the lower extreme of first connecting plate 15 to be connected, the upper end of cutting formula expansion bracket 17 one side rotates with movable block 16 to be connected, spacing connecting plate 18 rotates with the lower extreme of cutting formula expansion bracket 17 opposite side to be connected, the sliding tray has been seted up on the spacing connecting plate 18, sliding block 19 activity suit is on the sliding tray, and with the upper end rotation connection of cutting formula expansion bracket 17's opposite side, above-mentioned rotation card solid subassembly includes: the safety hurdle structure comprises a fixed pin 20, a rotating sheet 21 and a fixed rod 22, wherein the fixed pin 20 is arranged on the side wall of a rectangular groove 14, one end of the rotating sheet 21 is movably sleeved on the fixed pin 20, the other end of the rotating sheet 21 is provided with an arc-shaped notch, the fixed rod 22 is arranged on the side wall of the rectangular groove 14, corresponds to the fixed pin 20 in position and is matched with the arc-shaped notch on the rotating sheet 21, the safety hurdle structure can be used as a temporary protective fence, when in use, the rotating sheet 21 is pulled, one end of the rotating sheet 21 is separated from the fixed rod 22 and rotates for 90 degrees by taking the fixed pin 20 as a center, a limit connecting plate 18 in the rectangular groove 14 is pulled, so that a scissor type telescopic frame 17 is expanded, in the expansion process of the scissor type telescopic frame 17, one end of the scissor type telescopic frame 17 slides downwards along a limit slideway on a first connecting plate 15 under the limit action of a movable, the other end of the connecting rod slides downwards along the sliding groove on the limiting connecting plate 18 under the connecting action of the sliding block 19, so that the function of enlarging the enclosure range is realized;

as can be seen from fig. 1 to 11 of the specification, in the implementation process, the sliding type card support portion includes: stop collar 23, joint locking subassembly and card support subassembly, its position relation and relation of connection are as follows, 23 activity suit of stop collar is on movable stand 8, the rectangle that has seted up on 23 side wall of stop collar leads to the groove, the rectangle that joint locking subassembly was installed on stop collar 23 leads to the inslot, L type slotted hole has been seted up on 23 another side wall of stop collar, the activity of card support subassembly is installed in L type slotted hole, and one end is connected with L type slotted hole rotation, above-mentioned joint locking subassembly includes: fixed column 24, cam 25 and handle 26, its position relation and relation of connection are as follows, and fixed column 24 installs in the rectangular through groove on stop collar 23, and both ends all with stop collar 23 fixed connection, and cam 25 activity suit is on fixed column 24, and the rim is laminated with the activity stand 8 lateral wall mutually, and handle 26 is fixed to be installed on cam 25, and wherein the card holds in the palm the subassembly and includes: the rotating pin 27 and the bearing plate 28 are in the following position relation and connection relation, the rotating pin 27 is movably inserted into an L-shaped slot hole on the limiting sleeve 23, the upper end and the lower end of the rotating pin 27 are rotatably connected with the limiting sleeve 23, the bearing plate 28 is movably arranged in the L-shaped slot hole, one end of the bearing plate 28 is fixedly connected with the rotating pin 27, in a use mode, the horizontal cross beam 3 is taken down, a sleeve hidden by the horizontal cross beam 3 is pulled out, a handle 26 on the side wall of the cam 25 is pulled, the cam 25 rotates for a certain angle along the fixed column 24, the limiting effect between the limiting sleeve 23 and the movable upright column 8 is relieved, the limiting sleeve 23 is slid to move to a required position, the handle 26 is pulled reversely, the rim of the cam 25 is tightly attached to the side wall of the movable upright column 8, the limiting sleeve 23 is locked, the bearing plate 28 is pulled, the bearing plate 28 rotates for 90 degrees along the rotating pin 27, the, the safety hurdle structure can be used as a high jump training auxiliary instrument;

as can be seen from fig. 1 to 11 of the specification, in the specific implementation process, as an optimal setting, the side wall of the movable upright post 8 is provided with height scale lines and marked with corresponding elevation values, so that the height adjustment can be performed quickly and accurately.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims

1. A multipurpose safety hurdle structure for track and field comprises a pair of fixed upright posts (1) with the same structure, a pair of supporting legs (2) with the same structure and a horizontal cross beam (3), and is characterized in that a pair of rectangular notches with the same structure are respectively formed in the side walls of the fixed upright posts (1), the supporting legs (2) are respectively inserted into the rectangular notches and are rotatably connected with the fixed upright posts (1), the supporting legs (2) are of rectangular groove-shaped structures, the horizontal cross beam (3) is movably arranged between the fixed upright posts (1) and is a telescopic adjustable rod piece, a folding accommodating part is arranged between the fixed upright posts (1) and the supporting legs (2), a lifting adjusting part is arranged on the fixed upright posts (1) and is connected with the horizontal cross beam (3), the two side wall surfaces of the fixed upright post (1) are respectively provided with a hidden partition part, and the lifting adjusting part is provided with a sliding type clamping and supporting part;

the folding storage part comprises: the vertical self-locking connecting hinge (4), the connecting ring (5), the limiting ring (6) and the limiting rod (7);

perpendicular auto-lock connecting hinge (4) install in the rectangle breach on fixed post (1), and one end with fixed post (1) lateral wall fixed connection, the other end with supporting leg (2) lateral wall fixed connection, go-between (5) install in the rectangle breach, and be located on fixed post (1) lateral wall, spacing ring (6) install in fixed installation in supporting leg (2), gag lever post (7) one end activity suit in on spacing ring (6), and the other end be hook-shaped, and with go-between (5) phase-match.

2. A multi-purpose safety hurdle structure for track and field use according to claim 1, characterized in that said lifting adjustment part comprises: the device comprises a movable upright post (8), a limiting groove (9), an elastic limiting component and a fastening bolt (10);

the fixing device is characterized in that a pair of threaded holes with the same structure are formed in the side wall of the upper end of the fixing stand column (1), a plurality of first through holes with the same structure are formed in the side wall faces of two sides of the movable stand column (8) and are matched with the threaded holes in size, the movable stand column (8) is movably inserted into the fixing stand column (1), the limiting groove (9) is formed in the movable stand column (8), the elastic limiting assembly is arranged in the limiting groove (9), and the fastening bolt (10) penetrates through the threaded holes and the first through holes in a spiral mode.

3. A multi-purpose safety hurdle structure for track and field use as claimed in claim 2 wherein said elastic limiting means comprises: a spring (11), a rubber block (12) and a pull rod (13);

the rectangular groove hole is formed in the upper end face of the limiting groove (9), the spring (11) is installed in the rectangular groove hole, one end of the rubber block (12) stretches into the rectangular groove hole and is fixedly connected with one end of the spring (11), and one end of the pull rod (13) penetrates through the side wall of the limiting groove (9) and the spring (11) and is fixedly connected with the rubber block (12).

4. The multi-purpose track and field safety hurdle structure as recited in claim 1 wherein said concealed partition comprises: the telescopic clamping device comprises a rectangular groove (14), a telescopic containing component and a rotary clamping component;

the rectangular groove (14) is arranged on the side wall of the fixed upright post (1), the telescopic storage component is arranged in the rectangular groove (14), one end of the telescopic storage component is fixedly connected with the inner wall of the rectangular groove (14), and the rotating clamping component is arranged on the side wall of the rectangular groove (14).

5. A multi-purpose track and field safety hurdle structure as defined in claim 4 wherein said telescoping stowing assembly comprises: the device comprises a first connecting plate (15), a movable block (16), a scissor type telescopic frame (17), a limiting connecting plate (18) and a sliding block (19);

the scissors type telescopic rack is characterized in that a first connecting plate (15) is arranged in the rectangular groove (14) and fixedly connected with the side wall of the rectangular groove (14), a limiting slide way is formed in the first connecting plate (15), a movable block (16) is movably sleeved on the limiting slide way, the lower end of one side of the scissors type telescopic rack (17) is rotatably connected with the lower end of the first connecting plate (15), the upper end of one side of the scissors type telescopic rack (17) is rotatably connected with the movable block (16), a limiting connecting plate (18) is rotatably connected with the lower end of the other side of the scissors type telescopic rack (17), a sliding groove is formed in the limiting connecting plate (18), and a sliding block (19) is movably sleeved on the sliding groove and rotatably connected with the upper end of the other side of the scissors type telescopic rack (17).

6. The multi-purpose track and field safety hurdle structure as claimed in claim 4, wherein said rotating locking assembly comprises: a fixing pin (20), a rotating piece (21) and a fixing rod (22);

the fixing rod (20) is arranged on the side wall of the rectangular groove (14), one end of the rotating sheet (21) is movably sleeved on the fixing rod (20), an arc-shaped notch is formed in the other end of the rotating sheet (21), and the fixing rod (22) is arranged on the side wall of the rectangular groove (14), corresponds to the fixing rod (20) in position and is matched with the arc-shaped notch in the rotating sheet (21).

7. A multi-purpose track and field safety hurdle structure as defined in claim 2 wherein said sliding type catch portion comprises: the limiting sleeve (23), the clamping locking assembly and the clamping support assembly;

the limiting sleeve (23) is movably sleeved on the movable upright post (8), a rectangular through groove is formed in one side wall face of the limiting sleeve (23), the clamping locking assembly is arranged in the rectangular through groove in the limiting sleeve (23), an L-shaped groove hole is formed in the other side wall face of the limiting sleeve (23), and the clamping support assembly is movably arranged in the L-shaped groove hole, and one end of the clamping support assembly is rotatably connected with the L-shaped groove hole.

8. A multi-purpose track and field safety hurdle structure as defined in claim 7 wherein said snap locking assembly comprises: a fixed column (24), a cam (25) and a handle (26);

the fixed column (24) is arranged in the rectangular through groove on the limiting sleeve (23), two ends of the fixed column are fixedly connected with the limiting sleeve (23), the cam (25) is movably sleeved on the fixed column (24), the wheel rim is attached to the side wall of the movable upright column (8), and the handle (26) is fixedly arranged on the cam (25).

9. The multi-purpose track and field safety hurdle structure as recited in claim 7, wherein said card holder assembly comprises: a rotation pin (27) and a support plate (28);

the rotating pin (27) is movably inserted into the L-shaped groove hole in the limiting sleeve (23), the upper end and the lower end of the rotating pin are rotatably connected with the limiting sleeve (23), the bearing plate (28) is movably arranged in the L-shaped groove hole, and one end of the bearing plate is fixedly connected with the rotating pin (27).

10. A multi-purpose safety hurdle structure for track and field use according to claim 2, characterized in that said movable upright post (8) has height scale lines on its side wall and corresponding elevation values are marked.