CN112957651B

CN112957651B - Auxiliary sand paving equipment for standing long jump

Info

Publication number: CN112957651B
Application number: CN202110271057.5A
Authority: CN
Inventors: 邵源; 江建
Original assignee: Hunan University of Arts and Science
Current assignee: Hunan University of Arts and Science
Priority date: 2021-03-12
Filing date: 2021-03-12
Publication date: 2022-02-08
Anticipated expiration: 2041-03-12
Also published as: CN112957651A

Abstract

The invention relates to auxiliary sand paving equipment for standing long jump, which comprises a frame type supporting frame, wherein four corners at the bottom of the frame type supporting frame are respectively fixed with a telescopic supporting leg, and the bottom of each telescopic supporting leg is fixedly connected with a roller; two support rods which are arranged in parallel are fixedly connected between two short edges of the frame type support frame, and a screw rod is fixedly arranged between the two support rods; the bottom of one sliding block is provided with a sliding chute which is in sliding fit with the two supporting rods, and a threaded hole for the screw rod to pass through and be matched with is arranged in the center of the sliding block in a penetrating manner; the bottom of the sliding block is fixedly connected with a lifting cylinder, a telescopic rod end of the lifting cylinder is fixedly connected with a second motor, and an output shaft of the second motor is fixedly connected with a paving plate; a lower sand hopper is fixedly connected between the two long edges of the frame type support frame and the two support rods. Through the structural design of the sand discharging device, sand is discharged from the front side and the rear side, and the middle paving plate is paved in a rotating mode, so that the working efficiency can be effectively improved.

Description

Auxiliary sand paving equipment for standing long jump

Technical Field

The invention relates to the technical field of sports training equipment, in particular to auxiliary sand paving equipment for standing long jump.

Background

Standing long jump is a traditional track and field competition project, and the standing long jump requires that the athlete does not use run-up, starts to jump from a standing posture, is only just lifted off the ground once during jumping, and the long jump score is the distance between the jump line and the heel of the foot closest to the jump line after the jump is lifted off and lands. In the prior art, the heel position after the jump landing is clearly displayed through a sand pit, the width of the sand pit is at least 2.75m generally, the distance between the front edge of a long jump take-off board and the far end of the sand pit is at least 10m, the sand surface in the pit and the surface of the take-off board are on the same horizontal plane, and the thickness of the sand is about 80cm approximately. Before long jump, the sand in the sand pit, especially the sand in the middle of the sand pit needs to be flattened and is as high as the jumping wire. At present, after the long jump measurement is finished every time mainly through manual work, the hollow place is pushed flat by means of a push plate, and time and labor are wasted.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the auxiliary sand paving equipment for standing long jump, which has the advantage of using effect and is labor-saving.

In order to achieve the purpose, the invention adopts the technical scheme that: an auxiliary sand paving device for standing long jump comprises a frame type support frame and is characterized in that four corners of the bottom of the frame type support frame are respectively fixed with a telescopic supporting leg, the bottom of each telescopic supporting leg is fixedly connected with a roller, and two rollers are rollers with brakes; two support rods which are arranged in parallel are fixedly connected between two short edges of the frame type support frame, a lead screw is fixedly arranged between the two support rods, one end of the lead screw is fixedly connected with an output shaft of the first motor, and the other end of the lead screw is fixed on the frame type support frame through a bearing and a bearing seat; the bottom of one sliding block is provided with a sliding chute which is in sliding fit with the two supporting rods, and a threaded hole for the screw rod to pass through and be matched with is arranged in the center of the sliding block in a penetrating manner; the bottom of the sliding block is fixedly connected with a lifting cylinder, a telescopic rod end of the lifting cylinder is fixedly connected with a second motor, and an output shaft of the second motor is fixedly connected with a paving plate; the sand hopper is all fixedly connected with down between two long limits of frame support frame and two spinal branch vaulting poles, and every sand hopper adopts the non-woven fabrics to make or adopts extending structure to constitute down, at every sand hopper bottom opening part fixedly connected with valve down, the valve is located the top of spreading the flat board.

Furthermore, the front side and the rear side of the telescopic rod end of the lifting cylinder are respectively and fixedly connected with a transverse connecting rod above the second motor, and the outer end of each transverse connecting rod is fixedly connected with a light baffle.

Further, the light baffle is the extending structure who comprises fixed plate, fly leaf, wherein on every fixed plate and near left and right both ends position respectively set up the waist type hole of a vertical setting, on the fly leaf and correspond each fixedly connected with connecting bolt in the position in two waist type holes, the tip periphery processing of keeping away from the fly leaf on the connecting bolt has one section screw thread, the screw thread department cooperation of connecting bolt has the nut, fix on the fixed plate or adjust the high position of fly leaf on the fixed plate through screwing up the nut or loosening the nut in order to realize the fly leaf.

Furthermore, the length of the paving plate is slightly smaller than the distance between the inner sides of the two light baffles.

Compared with the prior art, the invention has the beneficial effects that:

1. through the structural design of the sand discharging device, sand is discharged from the front side and the rear side, and the middle paving plate is paved in a rotating mode, so that the working efficiency can be effectively improved;

2. through the arrangement of the telescopic supporting legs, the lifting cylinder, the lower sand hopper which is sewn by non-woven fabrics or manufactured by a telescopic structure and the like, the overall occupied space of the equipment can be reduced while the requirement on one-time sand loading capacity is met, the transportation and the storage are convenient, and the structure is simplified;

3. the first motor drives the screw rod to rotate, so that the sliding block and the paving plate are driven to work back and forth along the width direction of the sand pit, and the whole volume of the equipment can be further reduced;

4. through the arrangement of the light baffle and the like, the sand can be blocked when the sand below is paved in a rotating mode, so that the sand is prevented from splashing outwards, the safety is ensured, and meanwhile, the paving effect is improved;

5. the telescopic structure, such as the telescopic supporting legs, the telescopic light baffle, the telescopic paving plate and the like, can realize the integral reduction of the sand storage height and the sand discharging height according to the requirement, is safe and stable, and is convenient to transport or store.

Drawings

FIG. 1 is a schematic top view of the structure of the present invention;

FIG. 2 is a schematic front view of the structure of the present invention with one side of the sand hopper, the light baffle and the like removed;

FIG. 3 is a schematic front view of the structure of the light baffle plate with one side of the sand hopper cut away and the other side of the sand hopper left;

FIG. 4 is a schematic view of the position connection between the light baffle and the telescopic rod of the lifting cylinder according to the present invention;

FIG. 5 is a schematic view of the overall contraction of the present invention;

the lifting device comprises a frame type supporting frame 1, a frame type supporting frame 1.1, short edges 1.2, long edges 2, telescopic supporting legs 3, rollers 4, supporting rods 5, a screw rod 6, a first motor 7, a bearing seat 8, a sliding block 9, a lifting cylinder 10, a second motor 11, a paving plate 12, a lower sand hopper 13, a valve 14, a transverse connecting rod 15, a light baffle plate 15.1, a fixing plate 15.2, a movable plate 15.3, a waist-shaped hole 15.4 and nuts.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that, in the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the details are not described below with reference to the prior art.

As shown in fig. 1-5, the auxiliary sand-spreading device for standing long jump comprises a frame-type support frame 1, wherein four corners at the bottom of the frame-type support frame 1 are welded and fixed with a telescopic leg 2, and the specific structure of the telescopic leg 2 is the same as the structure manually contracted, expanded and correspondingly locked in the prior art, or the structure of the telescopic leg driven by a telescopic cylinder in the prior art; the bottom of each telescopic supporting leg 2 is fixedly connected with rollers in a conventional manner, wherein two rollers 2 positioned on the front side are directional rollers with brakes, and two rollers 2 on the rear side are universal wheels; two support rods 4 which are arranged in parallel are fixedly connected between two short edges 1.1 of the frame type support frame 1, the tops of the support rods 4 are slide rail parts, a lead screw 5 is fixedly arranged between the two support rods 4, the lead screw 5 is parallel to the support rods 4, one end of the lead screw 5 is fixedly connected with an output shaft of a first motor 6, and the other end of the lead screw 5 is fixed on the frame type support frame 1 through a bearing and a bearing seat 7; a sliding groove in sliding fit with the two support rods 4 is designed at the bottom of one sliding block 8, and a threaded hole for the lead screw 5 to pass through and be matched with is arranged in the center of the sliding block 8; the bottom of the sliding block 8 is fixedly connected with a lifting cylinder 9, a telescopic rod end of the lifting cylinder 9 is fixedly connected with a second motor 10, and an output shaft of the second motor 10 is fixedly connected with a paving plate 11; a lower sand hopper 12 is fixedly connected between two long edges 1.2 of the frame type support frame 1 and the two support rods 4, each lower sand hopper 12 is made of non-woven fabrics or is made of a telescopic structure (such as corrugated plastic materials capable of bearing), a valve 13 is fixedly connected to an opening at the bottom of each lower sand hopper 12, and the valve 13 is still positioned above the paving plate 11 when descending to the maximum position.

The front side and the rear side of the telescopic rod end of the lifting cylinder 9 and the upper part of the second motor 10 are fixedly connected with a transverse connecting rod 14, and the outer end of each transverse connecting rod 14 is fixedly connected with a light baffle 15.

The light baffle 15 is a telescopic structure composed of a fixed plate 15.1 and a movable plate 15.2, wherein a vertically arranged waist-shaped hole 15.3 is respectively formed on each fixed plate 15.1 and near the left end and the right end, a connecting bolt is respectively and fixedly connected on the movable plate and corresponding to the two waist-shaped holes 15.3, a section of thread is processed on the periphery of the end part of the connecting bolt far away from the movable plate, a nut 15.4 is matched at the thread part of the connecting bolt, and the movable plate 15.2 is fixed on the fixed plate 15.1 or the height position of the movable plate 15.2 on the fixed plate 15.1 is adjusted by screwing the nut 15.4 or unscrewing the nut 15.4.

For convenience of use, the length of the paving plate 11 is slightly smaller than the distance between the inner sides of the two light baffles 15.

Before use, the invention is pushed to the side of the sandpit, the telescopic supporting legs 2 on the two sides roll on the two sides of the long side of the sandpit, and the whole height of the invention is set to be a proper position. When the sand scraping machine is used, the valve 13 is closed, the two lower sand hoppers 12 are filled with sand, the sand below the valve is opened, the leveling plate is lowered to a proper position through the lifting cylinder, and the second motor is started to rotate to drive the leveling plate to rotate to scrape the sand. In practice, the flat plate is driven to a proper position to be flat by starting the first motor, and the sand is discharged by pushing the whole equipment of the invention to the proper position. The device can be made into a relatively small size and is more suitable for filling sand and paving the sand pit.

Claims

1. The auxiliary sand paving equipment for standing long jump comprises a frame type support frame (1), and is characterized in that four corners of the bottom of the frame type support frame (1) are respectively fixed with a telescopic leg (2), the bottom of each telescopic leg (2) is fixedly connected with a roller (3), and two rollers (3) are rollers with brakes; two support rods (4) which are arranged in parallel are fixedly connected between two short edges (1.1) of the frame type support frame (1), a lead screw (5) is fixedly arranged between the two support rods (4), one end of the lead screw (5) is fixedly connected with an output shaft of a first motor (6), and the other end of the lead screw (5) is fixed on the frame type support frame (1) through a bearing and a bearing seat (7); the bottom of the sliding block (8) is provided with a sliding chute which is in sliding fit with the two support rods (4), and a threaded hole for the lead screw (5) to pass through and be matched with is arranged in the center of the sliding block (8); the bottom of the sliding block (8) is fixedly connected with a lifting cylinder (9), a telescopic rod end of the lifting cylinder (9) is fixedly connected with a second motor (10), and an output shaft of the second motor (10) is fixedly connected with a paving plate (11); the sand hopper (12) under equal fixedly connected with between two long limits (1.2) and two spinal branch vaulting poles (4) of frame support frame (1), every sand hopper (12) under adopt the non-woven fabrics to make or adopt extending structure to constitute, at every sand hopper (12) bottom opening part fixedly connected with valve (13) down, valve (13) are located the top of spreading flat board (11).

2. An auxiliary sand-spreading device for standing long jump according to claim 1, characterized in that: the front side and the rear side of the telescopic rod end of the lifting cylinder (9) are respectively fixedly connected with a transverse connecting rod (14) above the second motor (10), and the outer end of each transverse connecting rod (14) is fixedly connected with a light baffle (15).

3. An auxiliary sand-spreading device for standing long jump according to claim 2, characterized in that: the light baffle (15) is the extending structure who comprises fixed plate (15.1), fly leaf (15.2), wherein on every fixed plate (15.1) and near left, right both ends position respectively seted up a waist type hole (15.3) of vertical setting, on fly leaf (15.2) and respectively fixedly connected with a connecting bolt in the position that corresponds two waist type holes (15.3), the tip periphery that keeps away from the fly leaf has processed one section screw thread on the connecting bolt, the screw thread department cooperation of connecting bolt has nut (15.4), fix on fixed plate (15.1) or adjust the high position of fly leaf (15.2) on fixed plate (15.1) through screwing up nut (15.4) or unscrewing nut (15.4).

4. An auxiliary sand-spreading device for standing long jump according to claim 2, characterized in that: the length of the paving plate (11) is slightly smaller than the distance between the inner sides of the two light baffles (15).