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

Abstract

The invention discloses a multi-purpose safety hurdle structure for track and field, comprising a pair of fixed columns with the same structure, a pair of support legs with the same structure and a horizontal beam, and a pair of the fixed columns with the same structure are respectively opened on the side walls of the pair of the fixed columns A pair of said support legs are respectively inserted into said rectangular notch, and are rotatably connected with said fixed column. Between the fixed uprights, the present invention selects telescopic sleeves as the horizontal beams of the hurdle frame, the support legs of the hurdle frame are stored through the foldable storage part, and the vertical height of the horizontal beam on the hurdle frame is adjusted by the lifting adjustment part. It can be upgraded to improve the scope of application of the hurdle frame, which can meet the needs of male and female students of different ages and heights. At the same time, a hidden partition is set on the fixed column of the hurdle frame, and the hurdle frame can be used as a temporary guardrail.

Description

A multipurpose track and field safety hurdle structure

technical field

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

Background technique

Overcoming obstacles is a basic life skill formed by human beings in long-term production and fighting against nature. Hurdle running, as a track and field sport, is developed and evolved from the basic skills of overcoming obstacles. Hurdle running originated in In the United Kingdom, it evolved from the game of shepherds crossing the fence of the sheepfold. At that time, people called it obstacle running, which belonged to men's sports. In the early hurdles, the obstacles set up were ordinary fences, and later there were wooden buried in the ground. The hurdle was later changed to a bracket for sawing firewood. Crossing such obstacles is not only dangerous, but also prone to injury accidents, and also hinders the improvement of hurdle running skills. The hurdles are very technical in track and field sports. In sprinting, due to the particularity of hurdling techniques, hurdle running is different from normal running techniques. It is necessary to overcome a certain number of obstacles in high-speed running, which imposes strict requirements on the integrity, coordination and rhythm of technical movements. The hurdling action should be strong, coherent, and rhythmic. At the same time, in hurdle training, the hurdle frame is an indispensable training equipment. However, in the prior art, the hurdle frame is mostly an integrated frame structure, that is, the railing generally adopts a whole The two ends of the wooden or steel material board are fixed on the two support rods, the height is fixed, the function is relatively single, and because the hurdle frame is integrally formed, it is not convenient to transport and carry. There is this case.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the above problems, and design a multi-purpose track and field safety hurdle structure, which solves the problem that in the prior art, the hurdle frames are mostly one-piece frame structures, that is, the balustrade is generally made of an integral wooden or The two ends of the steel material plate are respectively fixed on the two support rods, the height is fixed, the function is relatively single, and because the hurdle frame is integrally formed, it is inconvenient to transport and carry.

The technical scheme of the present invention to achieve the above objects is: a multi-purpose track and field safety hurdle structure, comprising a pair of fixed columns with the same structure, a pair of support legs with the same structure and a horizontal beam, and a pair of side walls of the fixed columns are on the side walls. A pair of rectangular gaps with the same structure are respectively opened, and a pair of the support legs are respectively inserted into the rectangular gaps and are rotatably connected with the fixed column. The support legs have a rectangular groove-like structure, and the horizontal beam It is movably installed between a pair of the fixed columns, and the horizontal beam is a telescopic and adjustable rod. A folding storage part is arranged between the fixed column and the support legs, and a foldable storage part is arranged on the fixed column. The lifting adjustment part is connected with the horizontal beam, the two side walls of the fixed column are provided with concealed partition parts, and the lifting adjustment part is provided with a sliding card holder;

The folding storage part includes: a vertical self-locking connecting hinge, a connecting ring, a limit ring and a limit rod;

The vertical self-locking connection hinge is installed in the rectangular gap on the fixed column, and one end is fixedly connected to the side wall of the fixed column, and the other end is fixedly connected to the side wall of the support leg. The connecting ring is installed In the rectangular gap and on the side wall of the fixed column, the limit ring is fixedly installed in the support leg, and one end of the limit rod is movably sleeved on the limit ring , and the other end is hook-shaped and matched with the connecting ring.

The lifting adjustment part includes: a movable column, a limit slot, an elastic limit component and a fastening bolt;

A pair of threaded holes with the same structure are opened on the upper end side wall of the fixed column, and a plurality of first through holes with the same structure are opened on the two side walls of the movable column, which are matched with the size of the threaded holes, and the movable column is movably inserted. In the fixed column, the limit groove is installed on the movable column, the elastic limit component is installed in the limit groove, and the fastening bolt is screwed through the threaded hole and first through hole.

The elastic limit component includes: a spring, a rubber block and a pull rod;

A rectangular slot hole is formed on the upper end surface of the limiting slot, the spring is installed in the rectangular slot hole, and one end of the rubber block extends into the rectangular slot 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 part includes: a rectangular slot, a telescopic storage assembly and a rotating clamping assembly;

The rectangular groove is installed on the side wall of the fixed column, the telescopic storage assembly is installed in the rectangular groove, and one end is fixedly connected to the inner wall of the rectangular groove, and the rotating clamping assembly is installed. is arranged on the side wall of the rectangular groove.

The telescopic storage assembly includes: a first connecting plate, a movable block, a scissor-type telescopic frame, a limit connecting plate and a sliding block;

The first connecting plate is installed in the rectangular groove and is fixedly connected with the side wall of the rectangular groove. A limited slideway is provided on the first connecting plate, and the movable block is movably sleeved on the rectangular groove. On the limit slideway, the lower end of one side of the scissor-type telescopic frame is rotatably connected to the lower end of the first connecting plate, the upper end of one side of the scissor-type telescopic frame is rotatably connected to the movable block, and the limit connection The plate is rotatably connected with the lower end of the other side of the scissor-type telescopic frame, a sliding groove is opened on the limit connecting plate, and the sliding block is movably sleeved on the sliding groove and is connected with the scissors-type telescopic frame. The upper end of the other side is pivotally connected.

The rotating clamping assembly includes: a fixing pin, a rotating piece and a fixing rod;

The fixing pin is installed on the side wall of the rectangular groove, one end of the rotating piece is movably sleeved on the fixing pin, the other end of the rotating piece is provided with an arc-shaped gap, and the fixing rod is installed. It is arranged on the side wall of the rectangular groove, corresponds to the position of the fixing pin, and matches with the arc-shaped notch on the rotating piece.

The sliding card tray part includes: a limit sleeve, a snap-on locking assembly and a card tray assembly;

The limit sleeve is movably sleeved on the movable column, a rectangular through groove is opened on a side wall of the limit sleeve, and the snap-locking assembly is installed in the rectangular through groove on the limit sleeve , an L-shaped slot hole is opened on the other side wall of the limiting sleeve, the card tray assembly is movably installed in the L-shaped slot hole, and one end is rotatably connected with the L-shaped slot hole.

The snap locking assembly includes: a fixing post, a cam and a handle;

The fixing column is installed in a rectangular through groove on the limiting sleeve, and both ends are fixedly connected with the limiting sleeve, the cam is movably sleeved on the fixing column, and the rim is connected to the The side walls of the movable column are fitted together, and the handle is fixedly arranged on the cam.

The card tray assembly includes: a rotating pin and a supporting plate;

The rotating pin is movably inserted into the L-shaped slot hole on the limit sleeve, and both upper and lower ends are rotatably connected with the limit sleeve, and the support plate is movably installed in the L-shaped slot hole and one end is fixedly connected with the rotating pin.

A height scale line is arranged on the side wall of the movable column, and a corresponding elevation value is marked.

The multi-purpose track and field safety hurdle structure made by the technical scheme of the present invention selects the telescopic sleeve as the horizontal beam of the hurdle frame, and stores the supporting legs of the hurdle frame through the foldable storage part, and uses the lifting adjustment part to adjust the hurdle frame. The vertical height of the horizontal beam on the hurdle frame is increased, so as to improve the scope of application of the hurdle frame, which can meet the needs of male and female students of different ages and different heights. It is used as a temporary guardrail to increase the use of the hurdle frame, and a sliding card holder is set on the lifting adjustment part, the horizontal beam can be removed, the sliding card holder can be adjusted to a proper height, and the two ends of the horizontal beam are lapped after unfolding. The sliding card holder can be used as an auxiliary support for high jump training, which greatly improves the application range of the hurdle frame. It has simple structure, convenient assembly and disassembly, easy to carry, and has a wide range of uses. One-piece frame structure, that is, the railing is generally made of an integral wooden or steel material board, and its two ends are respectively fixed on two support rods. The height is fixed, the function is relatively simple, and because the hurdle frame is integrally formed, it is inconvenient. Transport carry issues.

Description of drawings

FIG. 1 is a schematic front view of a multipurpose track and field safety hurdle structure according to the present invention.

2 is a schematic structural diagram of the A-A position of a multipurpose track and field safety hurdle structure according to the present invention.

3 is a schematic side view of a multipurpose track and field safety hurdle structure according to the present invention.

FIG. 4 is a partial enlarged structural schematic diagram of a multi-purpose track and field safety hurdle structure according to the present invention.

FIG. 5 is a schematic diagram of the position a of a multipurpose track and field safety hurdle structure according to the present invention.

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

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

8 is a schematic diagram of the d-position structure of a multipurpose track and field safety hurdle structure according to the present invention.

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

FIG. 10 is a schematic diagram of the position f of a multipurpose track and field safety hurdle structure according to the present invention.

FIG. 11 is a schematic front view of the structure of the concealed partition in the unfolded state of the multi-purpose track and field safety hurdle structure according to the present invention.

In the figure: 1-fixed column; 2-support leg; 3-horizontal beam; 4-vertical self-locking hinge; 5-connecting ring; 6-limiting ring; 7-limiting rod; 8-movable column; 9- Limit slot; 10- Fastening bolt; 11- Spring; 12- Rubber block; 13- Pull rod; 14- Rectangular groove; 15- First connecting plate; 16- Active block; 17- Scissor telescopic frame; 18- Limit connecting plate; 19-slide block; 20-fixing pin; 21-rotating piece; 22-fixing rod; 23-limiting sleeve; 24-fixing column; 25-cam; 26-handle; 27-rotating pin; 28 - Supporting plate.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings. As shown in Figures 1-11, a multi-purpose track and field safety hurdle structure includes a pair of fixed columns 1 with the same structure, a pair of support legs 2 with the same structure, and a horizontal beam 3. A pair of rectangular gaps with the same structure are respectively opened on the side walls of a pair of the fixed columns 1, and a pair of the support legs 2 are respectively inserted into the rectangular gaps and are rotatably connected with the fixed columns 1, so The support legs 2 have a rectangular trough-like structure, the horizontal beam 3 is movably installed between a pair of the fixed columns 1, and the horizontal beam 3 is a telescopic and adjustable rod. A foldable storage portion is arranged between the support legs 2, a lifting adjustment portion is arranged on the fixed column 1, and is connected with the horizontal beam 3, and the two side walls of the fixed column 1 are provided with concealed partitions The lifting and adjusting part is provided with a sliding card holder, and the foldable receiving part includes: a vertical self-locking connecting hinge 4, a connecting ring 5, a limit ring 6 and a limit rod 7, the vertical self-locking The connecting hinge 4 is installed in the rectangular gap on the fixed column 1, and one end is fixedly connected to the side wall of the fixed column 1, and the other end is fixedly connected to the side wall of the support leg 2. The connecting ring 5 is installed In the rectangular notch and on the side wall of the fixed column 1, the limit ring 6 is fixedly installed in the support leg 2, and one end of the limit rod 7 is movably sleeved on the The upper limit ring 6 and the other end are hook-shaped and matched with the connecting ring 5. The lifting adjustment part includes: a movable column 8, a limit groove 9, an elastic limit component and a fastening bolt 10, so A pair of threaded holes with the same structure are opened on the upper end side wall of the fixed column 1, and a number of first through holes with the same structure are opened on the two side walls of the movable column 8, and the size of the threaded holes is matched, and the movable column 8 is movable. Inserted into the fixed column 1, the limit slot 9 is installed on the movable column 8, the elastic limit component is installed in the limit slot 9, the fastening bolt 10 is screwed Passing through the threaded hole and the first through hole, the elastic limit component includes a spring 11, a rubber block 12 and a pull rod 13. A rectangular slot is formed on the upper end surface of the limit slot 9, and the spring 11 is installed. Set in the rectangular slot hole, one end of the rubber block 12 extends into the rectangular slot hole, and is fixedly connected with one end of the spring 11, and one end of the pull rod 13 penetrates the side wall of the limiting slot 9 and the spring 11, which is fixedly connected with the rubber block 12, the concealed partition part includes: a rectangular groove 14, a telescopic storage assembly and a rotating clamping assembly, the rectangular groove 14 is installed in the fixed column 1 On the side wall, the telescopic storage assembly is installed in the rectangular slot 14 , and one end is fixedly connected to the inner wall of the rectangular slot 14 , and the rotating clamping assembly is installed on the side wall of the rectangular slot 14 Above, the telescopic storage assembly includes: a first connecting plate 15, a movable block 16, a scissor telescopic frame 17, a limit connecting plate 18 and a sliding block 19, and the first connecting plate 15 is installed in the rectangular groove 14 and fixed with the side wall of the rectangular groove 14 The first connecting plate 15 is provided with a limit slide, the movable block 16 is movably sleeved on the limit slide, and the lower end of one side of the scissor telescopic frame 17 is connected to the first connecting plate 15 The lower end of the scissor-type telescopic frame 17 is rotatably connected with the lower end of the scissors-type telescopic frame 17, the upper end of the scissors-type telescopic frame 17 is rotatably connected with the movable block 16, and the limit connecting plate 18 is rotatably connected with the lower end of the other side of the scissor-type telescopic frame 17. The limit connecting plate 18 is provided with a sliding groove, the sliding block 19 is movably sleeved on the sliding groove, and is rotatably connected with the upper end of the other side of the scissor telescopic frame 17 , and the rotating clamping assembly includes: : a fixed pin 20, a rotating piece 21 and a fixed rod 22, the fixed pin 20 is installed on the side wall of the rectangular groove 14, one end of the rotating piece 21 is movably sleeved on the fixed pin 20, the The other end of the rotating piece 21 is provided with an arc-shaped notch, and the fixing rod 22 is installed on the side wall of the rectangular groove 14 and corresponds to the position of the fixing pin 20 and is connected to the rotating piece 21 Matching with the arc-shaped gap of the slidable card holder, the sliding card holder includes: a limit sleeve 23, a snap-on locking assembly and a card holder assembly, the limit sleeve 23 is movably sleeved on the movable column 8, and the limit A rectangular through groove is formed on one side wall of the position sleeve 23, the snap-locking assembly is installed in the rectangular through groove on the position limit sleeve 23, and an L is formed on the other side wall of the position limit sleeve 23. A slotted hole, the card holder assembly is movably installed in the L-shaped slotted hole, and one end is rotatably connected with the L-shaped slotted hole, and the latching locking assembly includes: a fixing column 24, a cam 25 and a handle 26. The fixing post 24 is installed in the rectangular through groove on the limiting sleeve 23, and both ends are fixedly connected with the limiting sleeve 23, and the cam 25 is movably sleeved on the fixing post 24 , and the wheel rim is in contact with the side wall of the movable column 8, the handle 26 is fixedly installed on the cam 25, and the card tray assembly includes: a rotating pin 27 and a supporting plate 28, the rotating pin 27 is movable It is inserted into the L-shaped slot hole on the limit sleeve 23, and the upper and lower ends are rotatably connected with the limit sleeve 23. The support plate 28 is movably installed in the L-shaped slot hole, And one end is fixedly connected with the rotating pin 27, and a height scale line is set on the side wall of the movable column 8, and the corresponding elevation value is marked.

The feature of this embodiment is that it includes a pair of fixed columns 1 with the same structure, a pair of support legs 2 and horizontal beams 3 with the same structure, and a pair of rectangular gaps with the same structure are respectively opened on the side walls of the pair of fixed columns 1, and a pair of The support legs 2 are respectively inserted into the rectangular gaps and are connected in rotation with the fixed column 1. The support legs 2 are in the shape of a rectangular groove 14, and the horizontal beam 3 is movably installed between a pair of fixed columns 1, and the horizontal beam 3 is Telescopic and adjustable rod, a foldable storage part is arranged between the fixed column 1 and the support leg 2, the fixed column 1 is provided with a lifting adjustment part and is connected with the horizontal beam 3, and the two side walls of the fixed column 1 are provided with Concealed partition part, the lifting adjustment part is provided with a sliding card holder, and the foldable storage part includes: a vertical self-locking connecting hinge 4, a connecting ring 5, a limit ring 6 and a limit rod 7, and a vertical self-locking connecting hinge 4 It is installed in the rectangular gap on the fixed column 1, and one end is fixedly connected to the side wall of the fixed column 1, and the other end is fixedly connected to the side wall of the support leg 2. The connecting ring 5 is installed in the rectangular gap and is located on the side of the fixed column 1. On the wall, the limit ring 6 is installed in the support leg 2, and one end of the limit rod 7 is movably sleeved on the limit ring 6, and the other end is hook-shaped and matched with the connecting ring 5; The casing is used as the horizontal beam 3 of the hurdle frame, and the supporting legs 2 of the hurdle frame are stored through the foldable storage part, and the vertical height of the horizontal beam 3 on the hurdle frame is lifted by the lifting adjustment part, thereby improving the hurdle frame. The scope of application can meet the needs of male and female students of different ages and heights. At the same time, a concealed partition is set on the fixed column 1 of the hurdle frame. The hurdle frame can be used as a temporary guardrail to increase the use of the hurdle frame. There is a sliding card holder on the upper part, the horizontal beam 3 can be removed, and the sliding card holder can be adjusted to be at an appropriate height. The auxiliary bracket greatly improves the application range of the hurdle frame, has a simple structure, is easy to assemble and disassemble, is easy to carry, and has a wide range of uses. The wooden or steel material board is fixed on two support rods at both ends, the height is fixed, the function is relatively single, and because the hurdle frame is integrally formed, it is inconvenient to transport and carry.

By those skilled in the art, the components in this case are connected in sequence. For the specific connection and operation sequence, reference should be made to the following working principle. The detailed connection means are known in the art. The following mainly introduces the working principle and process.

Example: As can be seen from the accompanying drawings 1-11 of the description, this solution includes a pair of fixed columns 1 with the same structure, a pair of support legs 2 with the same structure, and a horizontal beam 3. The positional relationship and connection relationship are as follows. A pair of fixed columns 1 A pair of rectangular gaps with the same structure are respectively opened on the side walls, a pair of supporting legs 2 are respectively inserted in the rectangular gaps, and are rotatably connected with the fixed column 1, the supporting legs 2 are in a rectangular groove-like structure, and the horizontal beam 3 is movably installed Between a pair of fixed columns 1 and the horizontal beam 3 is a telescopic and adjustable rod, a foldable storage part is arranged between the fixed column 1 and the support legs 2, and a lifting adjustment part is arranged on the fixed column 1 and is connected with the horizontal beam. 3-phase connection, the two side walls of the fixed column 1 are provided with concealed partition parts, and the lifting adjustment part is provided with a sliding type card holder; the above-mentioned foldable storage part includes: vertical self-locking connection hinge The positional relationship and connection relationship of the position ring 6 and the limit rod 7 are as follows. The vertical self-locking connection hinge 4 is installed in the rectangular gap on the fixed column 1, and one end is fixedly connected to the side wall of the fixed column 1, and the other end is connected to the support The side walls of the legs 2 are fixedly connected, the connecting ring 5 is installed in the rectangular gap and on the side wall of the fixed column 1, the limit ring 6 is installed in the support leg 2, and one end of the limit rod 7 is movably sleeved on the side wall of the fixed column 1. On the limit ring 6, the other end is hook-shaped, and is matched with the connecting ring 5. When in use, a telescopic sleeve is selected as the horizontal beam 3 of the hurdle frame, and the supporting leg 2 of the hurdle frame is connected through the folding storage part. It is stored, and the vertical height of the horizontal beam 3 on the hurdle frame is raised by the lifting adjustment part, so as to improve the application range of the hurdle frame, which can meet the needs of male and female students of different ages and heights. At the same time, the hurdle frame is fixed to the column 1 is provided with a concealed partition part, the hurdle frame can be used as a temporary guardrail to increase the use of the hurdle frame, and a sliding card holder is set on the lifting adjustment part, the horizontal beam 3 can be removed, and the sliding card holder can be adjusted. Located at an appropriate height, after unfolding the horizontal beam 3, the two ends are overlapped on the sliding card holder, which can be used as an auxiliary bracket for high jump training, which greatly improves the application range of the hurdle frame. The vertical self-locking connecting hinge 4 is turned downward by 90 degrees, and the limit rod 7 is connected between the connecting ring 5 and the limit ring 6, so that the entire supporting frame is stable and easy to receive;

It can be seen from the accompanying drawings 1-6 of the description that in the specific implementation process, the above-mentioned lifting adjustment part includes: a movable column 8, a limit groove 9, an elastic limit component and a fastening bolt 10, and the positional relationship and connection relationship are as follows. The fixed column 1. A pair of threaded holes with the same structure are opened on the side wall of the upper end, and a number of first through holes with the same structure are opened on the two side walls of the movable column 8, which are matched with the size of the threaded holes, and the movable column 8 is movably inserted in the fixed column 1. , the limit groove 9 is installed on the movable column 8, the elastic limit component is installed in the limit groove 9, the fastening bolt 10 is screwed through the threaded hole and the first through hole, wherein the elastic limit component includes: a spring 11 , the rubber block 12 and the pull rod 13, their positional relationship and connection relationship are as follows, the upper end surface of the limit groove 9 is provided with a rectangular slot hole, the spring 11 is installed in the rectangular slot hole, and one end of the rubber block 12 extends into the rectangular slot hole. , and is fixedly connected with one end of the spring 11, one end of the pull rod 13 penetrates the side wall of the limit groove 9 and the spring 11, and is fixedly connected with the rubber block 12. When in use, remove the fastening bolt 10. According to the needs of the user, Lift up the movable column 8, lift the movable column 8 to a suitable height, screw the fastening bolt 10 through the threaded hole and the first through hole to realize the locking and fixation of the movable column, lift the pull rod 13, and the pull rod 13 drives the limit groove The rubber block 12 in 9 moves upwards, at this time the spring 11 is forced to contract, insert one end of the horizontal beam 3 into the limit groove 9, and extend into the lower end of the rubber block 12, release the pull rod 13, the spring 11 resets Expand, push the rubber block 12 to press down, and clamp the horizontal beam 3;

It can be seen from the accompanying drawings 1-11 of the description that in the specific implementation process, the above-mentioned concealed partition includes: a rectangular groove 14, a telescopic storage assembly and a rotating clamping assembly. The positional relationship and connection relationship are as follows. The rectangular groove 14 is installed On the side wall of the fixed column 1, the telescopic storage assembly is installed in the rectangular groove 14, and one end is fixedly connected to the inner wall of the rectangular groove 14, and the rotating clamping assembly is installed on the side wall of the rectangular groove 14. It includes: a first connecting plate 15, a movable block 16, a scissor-type telescopic frame 17, a limit connecting plate 18 and a sliding block 19. The positional relationship and connection relationship are as follows. The first connecting plate 15 is installed in the rectangular groove 14. And it is fixedly connected with the side wall of the rectangular groove 14, the first connecting plate 15 is provided with a limit slide, the movable block 16 is movably sleeved on the limit slide, and the lower end of one side of the scissor telescopic frame 17 is connected to the first connecting plate 15. The lower end is rotatably connected, the upper end of one side of the scissor-type telescopic frame 17 is rotatably connected with the movable block 16, the limit connecting plate 18 is rotatably connected with the lower end of the other side of the scissor-type telescopic frame 17, and the limit connecting plate 18 is provided with a sliding groove. The sliding block 19 is movably sleeved on the sliding groove, and is rotatably connected with the upper end of the other side of the scissor telescopic frame 17. The above-mentioned rotating clamping assembly includes: a fixing pin 20, a rotating piece 21 and a fixing rod 22, their positional relationship and connection The relationship is as follows, the fixed pin 20 is installed on the side wall of the rectangular groove 14, one end of the rotating piece 21 is movably sleeved on the fixed pin 20, the other end of the rotating piece 21 is provided with an arc-shaped gap, and the fixed rod 22 is installed on the rectangular The side wall of the groove 14 corresponds to the position of the fixing pin 20 and matches with the arc-shaped notch on the rotating piece 21. The safety fence structure can be used as a temporary protective fence. piece 21, so that one end of the rotating piece 21 is separated from the fixing rod 22, and rotates 90 degrees with the fixing pin 20 as the center, and pulls the limit connecting plate 18 in the rectangular groove 14, so that the scissor-type telescopic frame 17 expands. 17 During the expansion process, one end of the scissor telescopic frame 17 slides down along the limit slide on the first connecting plate 15 under the limiting action of the movable block 16 , and the other end slides along the limiting slide under the connecting action of the sliding block 19 . The sliding groove on the position connecting plate 18 slides down, so as to realize the function of expanding the enclosure range;

It can be seen from the accompanying drawings 1-11 of the description that in the specific implementation process, the above-mentioned sliding card holder includes: a limit sleeve 23 , a snap-on locking assembly and a card holder assembly. The positional relationship and connection relationship are as follows. The limit sleeve 23 The movable sleeve is mounted on the movable column 8 , a rectangular through groove is formed on one side wall of the limit sleeve 23 , the snap-on locking component is installed in the rectangular through groove on the limit sleeve 23 , and the other side wall of the limit sleeve 23 is provided with a rectangular through groove. There is an L-shaped slotted hole, the card holder assembly is movably installed in the L-shaped slotted hole, and one end is rotatably connected with the L-shaped slotted hole. The above-mentioned latching and locking assembly includes: a fixed column 24, a cam 25 and a handle 26, its position The relationship and connection relationship are as follows, the fixed column 24 is installed in the rectangular through groove on the limit sleeve 23, and both ends are fixedly connected with the limit sleeve 23, the cam 25 is movably sleeved on the fixed column 24, and the rim and the movable The side walls of the upright column 8 are in contact with each other, and the handle 26 is fixedly installed on the cam 25. The card tray assembly includes: a rotating pin 27 and a supporting plate 28. The positional relationship and connection relationship are as follows. The rotating pin 27 is movably inserted in the limit In the L-shaped slot hole on the sleeve 23, and both the upper and lower ends are connected with the limit sleeve 23 in rotation, the support plate 28 is movably installed in the L-shaped slot hole, and one end is fixedly connected with the rotating pin 27. In the use mode, Remove the horizontal beam 3, pull out the hidden casing of the horizontal beam 3, and pull the handle 26 on the side wall of the cam 25, so that the cam 25 rotates along the fixed column 24 at a certain angle, and the limit sleeve 23 and the movable column 8 are released. Sliding the limiting sleeve 23 to move it to the desired position, and pulling the handle 26 in the opposite direction, so that the rim of the cam 25 is in close contact with the side wall of the movable column 8, and the limiting sleeve 23 is locked tightly. Flip the supporting plate 28, so that the supporting plate 28 rotates 90 degrees along the rotating pin 27, and the horizontal beam 3 is overlapped on the adjacent supporting plate 28, that is, the safety hurdle structure can be used as a high jump training auxiliary equipment. use;

As can be seen from the accompanying drawings 1-11 of the description, in the specific implementation process, as a preferred setting, a height scale line is provided on the side wall of the movable column 8, and the corresponding elevation value is marked, which is convenient for quick and accurate height adjustment.

The above technical solutions only represent the preferred technical solutions of the technical solutions of the present invention, and some changes that those skilled in the art may make to some parts of them all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims (10)

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.

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