CN110124336A - A kind of safe hurdle bar - Google Patents
A kind of safe hurdle bar Download PDFInfo
- Publication number
- CN110124336A CN110124336A CN201910521968.1A CN201910521968A CN110124336A CN 110124336 A CN110124336 A CN 110124336A CN 201910521968 A CN201910521968 A CN 201910521968A CN 110124336 A CN110124336 A CN 110124336A
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- baffle
- hurdling
- latch
- sliding block
- sliding
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001739 rebound effect Effects 0.000 description 11
- 230000005484 gravity Effects 0.000 description 10
- 210000000481 breast Anatomy 0.000 description 9
- 230000007423 decrease Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
- A63K3/00—Equipment or accessories for racing or riding sports
- A63K3/04—Hurdles or the like
- A63K3/043—Athletics hurdles
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Abstract
The invention discloses a kind of safe hurdle bars, it is related to material sports goods engineering device technique field, easily topple over to trip just to propose the problem of the height of the personnel of hurdle campaign, hurdles rack can not be adjusted based on existing hurdles rack, the present invention includes intersecting telescopic rod, latch including pedestal, shaft, the first sliding block, the first elastic component, baffle of hurdling, the second sliding block；It is connected between pedestal and baffle of hurdling by telescopic component.The beneficial effects of the present invention are: hurdles rack can fold, convenient transportation and storage；The height of hurdles rack is adjustable, can use for the personnel of different levels, especially middle and primary schools student.
Description
Technical field
The present invention relates to sports goods engineering device technique fields, and in particular to a kind of safe hurdle bar.
Background technique
Now widely used hurdles rack is common L shape counterweight hurdles rack, it, which has, beats that column impulse force is big, spy of momentum concentration
Point, during hurdling, hurdles rack is easily toppled over, and makes just to cause injury in the personnel Yi Yinfa " falling column " of hurdle campaign；Hit column appearance
Caton formula is slowed down, and rhythm between column can be often upset, and beginner and amateurish competitor are also easy to produce " being afraid of column " psychology.Students in middle and primary schools are due to the age
There are a gradients, so the hurdles rack that height is fixed is difficult to meet the requirement of school's different age group.
Summary of the invention
The problem to be solved by the present invention is that existing hurdles rack easily topple over to trip just the personnel of hurdle campaign,
The height of hurdles rack can not be adjusted.
The present invention adopts the following technical solutions solves above-mentioned technical problem:
The present invention provides a kind of safe hurdle bar, including pedestal, shaft, the first sliding block, the first elastic component, baffle of hurdling,
Second sliding block intersects telescopic rod, latch；It is connected between the pedestal and baffle of hurdling by telescopic component；
The pedestal is rotatably assorted with the shaft, the shaft be equipped with the first sliding rail, first sliding block with it is described
First sliding rail is slidably matched；First elastic component is connected between first sliding rail and first sliding block；
The both ends of the baffle of hurdling are provided with the second sliding rail, guiding and the baffle of hurdling of second sliding rail
Length direction is parallel, guiding and the directed parallel of second sliding rail of first sliding rail, second sliding block and described the
Two sliding rails are slidably matched；
The intersection telescopic rod includes multiple cross units interconnected, and the cross unit includes cross one another
One body of rod and second body of rod, first body of rod and second body of rod are hinged in infall；
First body of rod for intersecting telescopic rod bottom end and first sliding block are hinged, and the of the intersection telescopic rod bottom end
Bipole body is hinged with shaft；The bottom end of second body of rod and baffle of hurdling for intersecting telescopic rod top end is slidably connected, the friendship
The bottom end for pitching first body of rod and baffle of hurdling of telescopic rod top end is hinged；
The latch is located on the pedestal, and the intersection telescopic rod extensional motion drives the elongation of the first elastic component, and
Cause the first sliding block sliding until first sliding block offsets with the latch, to fix the first sliding block to specific bit
It sets；The baffle plate turning of hurdling to drive the intersection telescopic rod for being in lockup state to rotate, and causes described first to slide
Block misplaces completely with the latch latch.
Working principle:
The height adjustment of hurdles rack: being placed into designated position for hurdles rack, pull up baffle of hurdling, and baffle of hurdling drives
Intersect telescopic rod elongation, the baffle that will hurdle is pulled to extreme higher position, and first body of rod for intersecting telescopic rod bottom end drives the first sliding block
Sliding, the first elastic component are stretched, and second body of rod for intersecting telescopic rod top end drives the sliding of the second sliding block；Push hurdles rack across
Column baffle, makes baffle plate turning of hurdling, and before baffle plate turning of hurdling, is in lockup state due to intersecting telescopic rod, enables to intersect telescopic rod
Enough shaft is driven to rotate by a certain angle, the first sliding block misplaces completely with latch；
Promotion is hurdled baffle, and the baffle that makes to hurdle is overturn along original route, is driven shaft to rotate by a certain angle, is then decontroled and hurdle
Baffle, the rebound effect due to the first elastic component and the gravity of baffle of hurdling, intersect telescopic rod compression, the height for the baffle that makes to hurdle
It reduces, offsets when the second sliding block is moved to latch, when fixing the first sliding block to designated position, block the first elasticity
The rebound effect of part makes baffle stopping decline of hurdling, to realize the height adjustment for baffle of hurdling.
The folding of hurdles rack is placed: the baffle of hurdling of hurdles rack pushed, baffle plate turning of hurdling is made, before baffle plate turning of hurdling,
Height due to intersecting telescopic rod is in stationary state, so that intersection telescopic rod is able to drive shaft and rotates by a certain angle, the first sliding block
It misplaces completely with latch；
The breast board that will hurdle presses down, due to the rebound effect of the first elastic component and the gravity for baffle of hurdling, intersects flexible
Bar compression, the height decline for breast board of hurdling will intersect after telescopic rod is compressed to accessible extreme lower position, and the baffle that makes to hurdle is along former
Path overturning, drives shaft to rotate by a certain angle, causes the second sliding block to be moved to the first block and offset with the second block.
When hurdle campaign personnel encounter hurdles rack, is offseted at this time due to the first sliding block with latch, intersect telescopic rod
Height is fixed, and after baffle of hurdling is encountered by hurdle campaign personnel, baffle of hurdling rotates by a certain angle, and passes through returning for the first elastic component
The gravity of bullet effect and baffle of hurdling intersects telescopic rod and shrinks and fold down, and the height decline for breast board of hurdling, hurdles rack will not
Directly topple over.
The utility model has the advantages that hurdles rack of the invention will not topple over when hurdle campaign personnel encounter hurdles rack, but rotate one
After determining angle, fixing piece is separated with first body of rod for intersecting telescopic rod bottom end, so that intersection telescopic rod is made to shrink and fold down,
Trip hurdle campaign personnel after can toppling over to avoid hurdles rack；Hurdles rack can fold, convenient transportation and storage；Hurdles rack
It is highly adjustable, it can be used for the personnel of different levels, especially middle and primary schools student.
Preferably, the section of the pedestal is L-shaped, and the pedestal includes first base and second base, second bottom
Seat is vertical with the side bottom end of first base.
Preferably, cavity is equipped in the first base, the cavity is in the form of a column；The central axis of the cavity and gear of hurdling
The central axis of plate is parallel；The upper end of the cavity is equipped with notch, and the shaft rotated in cavity is arranged in the cavity.
Preferably, the cavity is cylindrical, and the shaft is cylindrical, and the outer diameter of the shaft is equal to or slightly less than sky
The internal diameter of chamber.
Preferably, the first base is equipped with scale and clamping screw, and the scale is located in first base, the mark
The length direction of ruler is parallel with the first sliding rail guide direction；The scale is equipped with through slot along its scale direction, and the latch is worn
It crosses through slot to be detachably connected with latch, the latch is slided along scale label direction, and the clamping screw is to fixing lock
The sliding of stops；
Joint face between first elastic component and the first sliding block side is contact surface, the contact surface and latch
Side offsets, and causes the first sliding block to stop sliding and is fixed to designated position.
Preferably, first sliding block is equipped with the first block close to the end of latch, and the latch is away from scale
End is equipped with the second block, and the side of first block and the second block offsets.
Preferably, the contact surface of first block and the second block is inclined-plane.
Working principle: the clamping screw being threadedly coupled with latch is unscrewed, latch is slided, latch is moved
It moves to a certain scale of scale, then screws clamping screw.
The utility model has the advantages that by adjusting the position of latch, so that the height to hurdles rack is adjusted, the first block and
The contact surface of two blocks is inclined-plane, can prevent the first block from slipping from the second block；Cavity is cylindrical, the outer diameter of shaft
Equal to or slightly less than cavity internal diameter be guarantee shaft can in cavity smooth rotation, it is ensured that shaft can be in cavity
Smooth rotation.
Preferably, between second sliding block and the end of the second sliding rail be equipped with the second elastic component, the one of the second elastic component
End is hinged at the second sliding block, and the other end of the second elastic component and the end face of the second sliding rail are hinged.
Preferably, the end of the clamping screw is equipped with tuning drive gear.
Working principle: when hurdler prepares to hurdle, when the height of hurdles rack is fixed, the first sliding block with offset, due to
First sliding block is fixed, and the second elastic component can not pull the second sliding block mobile；When hurdler encounters hurdles rack or to hurdles rack
When being folded, the first sliding block misplaces completely with latch, while the first elastic component pulls the sliding of the first sliding block, the second elasticity
Part pulls the sliding of the second sliding block.
The utility model has the advantages that when hurdler prepares to hurdle, when the height of hurdles rack is fixed, the second elastic component will not influence across
The height of column frame；When hurdler encounters hurdles rack or folds to hurdles rack, the second elastic component pulls the second sliding block
Sliding, can accelerate the contraction of hurdles rack to fold.
The working principle of the invention:
The height adjustment of hurdles rack: pulling up baffle of hurdling, and baffle of hurdling, which drives, intersects telescopic rod elongation, and will hurdle gear
Plate is pulled to extreme higher position, and first body of rod for intersecting telescopic rod bottom end drives the sliding of the first sliding block, and the first spring is elongated, and intersects
Second body of rod of telescopic rod top end drives the sliding of the second sliding block, and the first block is made to be staggered completely with the second block；Push hurdles rack
Baffle of hurdling, make baffle plate turning of hurdling, before baffle plate turning of hurdling, due to intersect telescopic rod height be in stationary state, make to hand over
Fork telescopic rod is able to drive shaft and rotates by a certain angle, and the first block misplaces completely with the second block；
The clamping screw being threadedly coupled with latch is unscrewed, latch is slided, latch is moved to scale
A certain scale on, then screw clamping screw；
When promotion is hurdled baffle, the baffle that makes to hurdle is overturn along original route, and shaft is driven to rotate by a certain angle, then decontrol across
Column baffle, the rebound effect due to the first spring and the gravity of baffle of hurdling, intersect telescopic rod compression, the height for the baffle that makes to hurdle
It reducing, when the first block and the second block offset, blocks the rebound effect of the first spring, the baffle that makes to hurdle stops declining,
To realize the height adjustment for baffle of hurdling.
The folding of hurdles rack is placed: the baffle of hurdling of hurdles rack pushed, baffle plate turning of hurdling is made, before baffle plate turning of hurdling,
Height due to intersecting telescopic rod is in stationary state, so that intersection telescopic rod is able to drive shaft and rotates by a certain angle, the first block
It misplaces completely with the second block；
The clamping screw being threadedly coupled with latch is unscrewed, latch is slided, latch is moved to scale
Correspondence scale on, then screw clamping screw；
The breast board that will hurdle presses down, due to the rebound effect of the first spring and the gravity for baffle of hurdling, intersects telescopic rod
Compression, the height decline for breast board of hurdling will intersect after telescopic rod is compressed to accessible extreme lower position, and the baffle that makes to hurdle is along former road
Diameter overturning.
When hurdle campaign personnel encounter hurdles rack, at this time since the first block and the second block offset, intersect telescopic rod
Height fix, after baffle of hurdling is encountered by hurdle campaign personnel, baffle of hurdling rotates by a certain angle, pass through the first spring return
The gravity of bullet effect and baffle of hurdling intersects telescopic rod and shrinks and fold down, and the height decline for breast board of hurdling, hurdles rack will not
Directly topple over.
The beneficial effects of the present invention are: when hurdle campaign personnel encounter hurdles rack, hurdles rack of the invention will not incline
, but after rotating by a certain angle, fixing piece is separated with the first sliding block, so that intersection telescopic rod is made to shrink and fold down, it can
Trip hurdle campaign personnel after toppling over to avoid hurdles rack；Hurdles rack can fold, convenient transportation and storage；The height of hurdles rack
It spends adjustable, can be used for the personnel of different levels, especially middle and primary schools student.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of safe hurdle bar in the embodiment of the present invention；
Fig. 2 is the side structure schematic diagram of safe hurdle bar in the embodiment of the present invention；
Fig. 3 is the postrotational structural schematic diagram of baffle of hurdling of safe hurdle bar in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram after the intersection telescopic rod of safe hurdle bar in the embodiment of the present invention is flexible；
Fig. 5 is the latch of safe hurdle bar and the structural schematic diagram of the first sliding block in the embodiment of the present invention；
In figure: 1- pedestal；11- first base；111- shaft；The first sliding block of 112-；The first spring of 113-；114- scale；
115- latch；116- clamping screw；The first block of 117-；The second block of 118-；12- second base；2- intersects telescopic rod；
21- cross unit；First body of rod of 211-；Second body of rod of 212-；3- hurdles baffle；The second sliding block of 31-；32- second spring.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and embodiment.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
A kind of safe hurdle bar, as shown in Figure 1, include pedestal 1, intersect telescopic rod 2, baffle 3 of hurdling, pedestal 1 with hurdle
It is connected between baffle 3 by intersecting telescopic rod 2, pedestal 1 is located at the lower section for baffle 3 of hurdling；The number of pedestal 1 is in the present embodiment
2, the number for intersecting telescopic rod 2 is 2, and pedestal 1 is corresponded with telescopic rod 2 is intersected, size, the shape of two pedestals 1
All the same, size, the shape for intersecting telescopic rod 2 are all the same；
As shown in Fig. 2, the section of pedestal 1 is L-shaped, pedestal 1 includes first base 11 and second base 12, second base 12
It is vertically arranged with the side bottom end of first base 11；For convenience of description, the present embodiment is using ground as supporting surface, but supporting surface is not
Be only limitted to ground, when pedestal 1 is placed on the ground, first base 11 and second base 12 with ground face contact, first base
11 and second base 12 be but be not limited only to rectangular-shape.
Cavity is equipped in first base 11, cavity is in the form of a column, and the central axis of cavity is parallel with the central axis of baffle 3 of hurdling；
The upper end setting of cavity is jagged, the shaft 111 that can be rotated in cavity is provided in cavity, shaft 111 is cylindrical, is
Guarantee shaft can in cavity smooth rotation, the present embodiment hollow cavity is cylindrical, the contact between cavity of shaft 111
The contact between face and face, the outer diameter of shaft 111 is equal to or slightly less than the internal diameter of cavity, the central axis of shaft 111 with hurdle
The central axis of baffle 3 is parallel.
The side wall of shaft 111 is equipped with the first sliding rail, and the guide direction of the first sliding rail is parallel with the central axis of shaft 111,
The opening direction of first sliding rail is arranged towards notch, and the size of notch can be arranged according to the size of the first sliding rail, and shaft 111 rotates
When, rotate the first sliding rail in breach scope；
First sliding rail is located between two ends of shaft 111, and end of the end of the first sliding rail not with shaft 111 connects
Touching；First sliding rail is equipped with the first sliding block 112 being slidably matched with the first sliding rail；The end of first sliding block 112 and the first sliding rail
Between the first spring 113 is installed, one end of the first spring 113 is fixedly connected with the side of the first sliding block 112, the first spring
113 other end is fixedly connected with the end face of the first sliding rail.
As shown in Fig. 3, Fig. 4 and Fig. 5, scale 114, latch 115 and clamping screw 116 are installed in first base 11,
The length direction of scale 114 is parallel with the first sliding rail guide direction, and scale 114 is equipped with scale, and scale 114 is along its scale direction
Equipped with through slot, the screw rod of clamping screw 116 can slide in through slot, and the side of latch 115 is equipped with threaded hole, clamping screw
116 pass through through slot is threadedly coupled with threaded hole, and latch 115 is slided along 114 scale direction of scale；When needing to lock latch
When 115, the screw rod of clamping screw 116 is passed through into through slot and is transferred in threaded hole, makes head and the latch 115 of clamping screw 116
End clamp scale, to lock latch 115；When latch 115 locks, between the first spring 113 and the first sliding block 112
Joint face be contact surface, which contacts with the side of latch 115 when offseting latch latch, can make and first
The first sliding block 112 that spring 113 connects stops sliding.
To improve the locking effect between the first sliding block 112 and latch 115, the first sliding block 112 is close to latch 115
End is fixed with the first block 117, and latch 115 is fixed with the second block 118 away from the end of scale 114；When latch 115
When locking, the first sliding block 112 and latch 115 are offseted by the first block 117 and the second block 118, and the first block 117 with
The contact surface of second block 118 is inclined-plane.
As shown in Figure 1, intersecting telescopic rod 2 includes multiple cross units 21 interconnected, cross unit 21 includes mutual
First body of rod 211 and second body of rod 212 intersected, first body of rod 211 and second body of rod 212 are hinged in infall；Adjacent intersection
The end of unit is hinged, and the end of the end of first body of rod 211 and second body of rod 212 is hinged, first body of rod 211 and second body of rod
212 length can be set according to actual needs.
Baffle 3 of hurdling is plate-like, and the bottom surface for baffle 3 of hurdling is equipped with the second sliding rail, and the number of the second sliding rail is 2, respectively
Positioned at the both ends for baffle 3 of hurdling, the length of the second sliding rail is less than the length for baffle 3 of hurdling, and the second sliding rail is equipped with to be slided with second
The second sliding block 31 that rail is slidably matched；Second spring 32, second spring are equipped between second sliding block 31 and the end of the second sliding rail
32 one end is hinged at the second sliding block 31, and the other end of second spring 32 and the end of the second sliding rail are hinged.Intersection is stretched
Second body of rod 212 on 2 top of contracting bar and the second sliding block 31 are hinged, intersect first body of rod 211 on 2 top of telescopic rod and baffle of hurdling
3 is hinged；First body of rod 211 and the first sliding block 112 for intersecting 2 bottom end of telescopic rod are hinged, intersect second body of rod of 2 bottom end of telescopic rod
212 is hinged with shaft 111.
The working principle of the present embodiment:
The height adjustment of hurdles rack: pulling up baffle 3 of hurdling, and baffle 3 of hurdling, which drives, to intersect telescopic rod 2 and elongate, will be across
Column baffle 3 is pulled to extreme higher position, and first body of rod 211 for intersecting 2 bottom end of telescopic rod drives the sliding of the first sliding block 112, the first bullet
Spring 113 is elongated, and second body of rod 212 for intersecting 2 top of telescopic rod drives the sliding of the second sliding block 31, makes the first block 117 and the
The separation of two blocks 118；The baffle 3 of hurdling for pushing hurdles rack makes the overturning of baffle 3 of hurdling, before baffle 3 of hurdling overturning, due to intersecting
The height of telescopic rod 2 is in stationary state, so that intersection telescopic rod 2 is able to drive shaft 111 and rotates by a certain angle, the first block 117
With the second dislocation completely of block 118；
The clamping screw 116 being threadedly coupled with latch 115 is unscrewed, latch 115 is slided, by latch
115 are moved on a certain scale of scale 114, then screw clamping screw 116；
For latch when pushing baffle 3 of hurdling, the baffle 3 that makes to hurdle drives shaft 111 to rotate certain angle along original route overturning
Degree, causes the second sliding block 31 to be moved to the first block 117 and offsets with the second block 118, and then relieving is hurdled baffle 3, due to the
The rebound effect of one spring 113 and the gravity of baffle 3 of hurdling intersect telescopic rod 2 and compress, and the height for the baffle 3 that makes to hurdle reduces, when
When first block 117 and the second block 118 offset, the rebound effect of the first spring 113 is blocked, makes to hurdle under the stopping of baffle 3
Drop, to realize the height adjustment for baffle 3 of hurdling.
The folding of hurdles rack is placed: being pushed the baffle 3 of hurdling of hurdles rack, is made the overturning of baffle 3 of hurdling, baffle 3 of hurdling overturning
Before, the height due to intersecting telescopic rod 2 is in stationary state, and so that intersection telescopic rod 2 is able to drive shaft 111 and rotates by a certain angle,
First block 117 and the second dislocation completely of block 118；Or direct rotating shaft 111, make the first block 117 and the second block 118
Dislocation completely；
The clamping screw 116 being threadedly coupled with latch 115 is unscrewed, latch 115 is slided, by latch
115 are moved on the correspondence scale of scale 114, then screw clamping screw 116；
The breast board 3 that will hurdle presses down, and due to the rebound effect of the first spring 113 and the gravity for baffle 3 of hurdling, intersection is stretched
Contracting bar 2 compresses, the decline of the height of breast board 3 of hurdling, will intersect after telescopic rod 2 is compressed to accessible extreme lower position, and make gear of hurdling
Plate 3 is overturn along original route.
When hurdle campaign personnel encounter hurdles rack, at this time since the first block 117 and the second block 118 offset, intersect
The height of telescopic rod 2 is fixed, and after baffle 3 of hurdling is encountered by hurdle campaign personnel, baffle 3 of hurdling rotates by a certain angle, and passes through
The gravity of the rebound effect of one spring 113 and baffle 3 of hurdling intersects telescopic rod 2 and shrinks and fold down, the height for breast board 3 of hurdling
Degree decline, hurdles rack 3 will not directly topple over.
The present embodiment is the utility model has the advantages that by graduated scale indicating graduation, so that the height of hurdles rack is adjusted, the first block 117
Contact surface with the second block 118 is inclined-plane, can prevent the first block 117 from slipping from the second block 118；Pedestal 1 is in L
Type can prevent hurdles rack from dumping forward；
When hurdle campaign personnel encounter hurdles rack, hurdles rack 3 of the invention will not directly topple over, but rotate certain angle
After degree, by the rebound effect of the first spring 113 and the gravity for baffle 3 of hurdling, intersects telescopic rod 2 and shrink and fold down, it can
Trip hurdle campaign personnel after toppling over to avoid hurdles rack；Hurdles rack can fold, convenient transportation and storage；The height of hurdles rack
It spends adjustable, can be used for the personnel of different levels, especially middle and primary schools student.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
It is within the scope of the invention with present inventive concept without the various process programs of substantial differences.
Claims (9)
1. a kind of safe hurdle bar, it is characterised in that: including pedestal, shaft, the first sliding block, the first elastic component, baffle of hurdling,
Two sliding blocks intersect telescopic rod, latch；It is connected between the pedestal and baffle of hurdling by telescopic component；
The pedestal is rotatably assorted with the shaft, and the shaft is equipped with the first sliding rail, first sliding block and described first
Sliding rail is slidably matched；First elastic component is connected between first sliding rail and first sliding block；
The both ends of the baffle of hurdling are provided with the second sliding rail, the guiding and the length of the baffle of hurdling of second sliding rail
Direction is parallel, and the guiding and the directed parallel of second sliding rail of first sliding rail, second sliding block and described second are slided
Rail is slidably matched；
The intersection telescopic rod includes multiple cross units interconnected, and the cross unit includes cross one another first bar
Body and second body of rod, first body of rod and second body of rod are hinged in infall；
First body of rod for intersecting telescopic rod bottom end and first sliding block are hinged, second bar for intersecting telescopic rod bottom end
Body is hinged with shaft；The bottom end of second body of rod and baffle of hurdling for intersecting telescopic rod top end is slidably connected, and the intersection is stretched
The bottom end of first body of rod and baffle of hurdling on contracting bar top is hinged；
The latch is located on the pedestal, and the intersection telescopic rod extensional motion drives the elongation of the first elastic component, and causes
The first sliding block sliding is until first sliding block offsets with the latch, to fix the first sliding block to designated position；
The baffle plate turning of hurdling to drive the intersection telescopic rod for being in lockup state to rotate, and causes first sliding block
It misplaces completely with the latch latch.
2. a kind of safe hurdle bar according to claim 1, it is characterised in that: the section of the pedestal is L-shaped, the bottom
Seat includes first base and second base, and the second base is vertical with the side bottom end of first base.
3. a kind of safe hurdle bar according to claim 1, it is characterised in that: the end of second sliding block and the second sliding rail
The second elastic component is equipped between portion, one end of the second elastic component is hinged at the second sliding block, the other end of the second elastic component
It is hinged with the end face of the second sliding rail.
4. a kind of safe hurdle bar according to claim 2, it is characterised in that: be equipped with cavity, institute in the first base
Cavity is stated to be in the form of a column；The central axis of the cavity is parallel with the central axis for baffle of hurdling；The upper end of the cavity is equipped with notch, institute
State the shaft for being arranged in cavity and rotating in cavity.
5. a kind of safe hurdle bar according to claim 2, it is characterised in that: the first base is equipped with scale and lock
Tight bolt, the scale are located in first base, and the length direction of the scale is parallel with the first sliding rail guide direction；The mark
Ruler is equipped with through slot along its scale direction, and the latch passes through through slot and is detachably connected with latch, and the latch is along scale
The sliding of scale direction, sliding of the clamping screw to fixed latch；
Joint face between first elastic component and the first sliding block side is contact surface, the side of the contact surface and latch
It offsets, the first sliding block is caused to stop sliding and is fixed to designated position.
6. a kind of safe hurdle bar according to claim 3, it is characterised in that: the cavity is cylindrical, the shaft
Cylindrical, the outer diameter of the shaft is equal to or slightly less than the internal diameter of cavity.
7. a kind of safe hurdle bar according to claim 5, it is characterised in that: first sliding block is close to the end of latch
Portion is equipped with the first block, and the latch is equipped with the second block away from the end of scale, first block and the second block
Side offsets.
8. a kind of safe hurdle bar according to claim 5, it is characterised in that: the end of the clamping screw is equipped with scale
Pointer.
9. a kind of safe hurdle bar according to claim 6, it is characterised in that: first block connects with the second block
Contacting surface is inclined-plane.
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| CN201910521968.1A CN110124336B (en) | 2019-06-17 | 2019-06-17 | Hurdle is striden to safety |
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| CN110124336B CN110124336B (en) | 2020-11-10 |
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| CN106512447A (en) * | 2017-01-04 | 2017-03-22 | 许昌学院 | Safety hurdle for track and field |
| CN206526520U (en) * | 2017-02-16 | 2017-09-29 | 杨亚星 | A kind of physical education and the safety-type of match of being particularly suitable for use in is hurdled |
| CN206980122U (en) * | 2017-08-04 | 2018-02-09 | 李亚光 | A kind of athletic training hurdles rack with stabilization function |
| CN208244127U (en) * | 2018-05-29 | 2018-12-18 | 哈尔滨体育学院 | Track and field events are hurdled device with folding overturning-preventing |
| CN208287503U (en) * | 2018-05-28 | 2018-12-28 | 萍乡学院 | A kind of track and field safe hurdle bar |
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| FR2483796A1 (en) * | 1980-06-06 | 1981-12-11 | Verdier Pinard Gabriel | Adjustable height hurdle for athletics - has counterweights adjusted automatically in position to keep displacement force constant |
| US4749187A (en) * | 1986-07-28 | 1988-06-07 | Oregon Track Equipment Co. | Track hurdle with adjustble latching mechanism and adjusting weight mechanism |
| CN203677954U (en) * | 2013-12-26 | 2014-07-02 | 山东交通学院 | Athletics hurdle |
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| CN110124336B (en) | 2020-11-10 |
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