CN218980348U

CN218980348U - Stretcher for physical classroom fitness

Info

Publication number: CN218980348U
Application number: CN202221475840.XU
Authority: CN
Inventors: 黄莉; 张德超; 张哲�; 原帅
Original assignee: Zhengzhou Railway Engineering Vocational College
Current assignee: Zhengzhou Railway Engineering Vocational College
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2023-05-09
Anticipated expiration: 2032-06-14

Abstract

The utility model discloses a stretcher for physical classroom fitness, which comprises a base, wherein the upper surface of the base is connected with a frame body, a guide rail and a fixed plate, the upper surface of the frame body is connected with a transverse plate, the inner upper surface of the frame body is provided with pulleys, the lower surface of the transverse plate is provided with pulleys, the phenomenon of blocking when a weight block is pulled is reduced, two guide posts are arranged in the frame body, a plurality of weight blocks are movably connected in the two guide posts, the upper surface of each weight block is provided with a through hole with the upper surface and the lower surface penetrating through, a pull rod is movably connected in the through hole, the end surfaces of the weight blocks are provided with a first fixing hole penetrating front and back, the surface of the pull rod is provided with a plurality of second fixing holes, the second fixing holes correspond to the first fixing holes, a bolt is movably connected in one of the first fixing holes, the upper surface of the pull rod is connected with one end of a steel cable conveniently selected proper weight, and the other end of the steel cable passes through the surfaces of the two pulleys to be connected with a handle.

Description

Stretcher for physical classroom fitness

Technical Field

The present utility model relates to a stretcher.

Background

The human body development is a state of normal survival and good operation of an individual based on following a life rule, and the physical fitness exercise has very important roles in promoting the growth and development of various organ systems of the human body, developing physical exercise capacity, improving fitness capacity, developing intelligence, improving the spirit and social life quality of the human body, and the like, and in the process of exercise, the important role of stretching has to be mentioned, so that the probability of injury can be reduced by stretching, and lactic acid accumulation after exercise is improved.

When students perform tensile strength training, higher weight can be used, the weight can exceed the limit of student strength, pulling but unsafe loosening can occur, under the condition, the students can have conditions of muscle strain and the like, and potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide a stretcher for physical education classroom fitness, which can help students to safely loosen training.

The technical scheme for achieving the purpose is as follows: the utility model provides a stretcher for gymnasium body-building, includes the base, the upper surface of base connects support body, guide rail and fixed plate, the diaphragm is connected to the upper surface of support body, be equipped with two guide pillars in the support body, two equal swing joint has a plurality of weights in the guide pillar, the surface swing joint safety plate of guide rail, the surface connection second pneumatic cylinder of fixed plate, the second telescopic link of second pneumatic cylinder passes the fixed plate is connected the surface of safety plate.

Preferably: the inner upper surface of the frame body is provided with a pulley, and the lower surface of the transverse plate is provided with the pulley.

Preferably: the upper surfaces of a plurality of weight pieces all are equipped with the through-hole that the upper and lower surface runs through mutually, swing joint has the pull rod in the through-hole, and a plurality of the first fixed orifices that run through around having all been seted up to weight piece terminal surface, the surface of pull rod is equipped with a plurality of second fixed orifices, and a plurality of the second fixed orifices all correspond a plurality of first fixed orifices, one of them swing joint bolt in the first fixed orifices.

Preferably: the upper surface of the pull rod is connected with one end of a steel cable, the other end of the steel cable penetrates through the surfaces of the two pulleys to be connected with a handle, and a switch is arranged on the handle.

Preferably: the upper surface of diaphragm is equipped with first pneumatic cylinder, the first telescopic link of first pneumatic cylinder connects the frame of stopping, the brake frame passes the upper surface connection braking vane of diaphragm, the braking vane is located the below of cable wire.

Preferably: the side of support body is equipped with a plurality of round holes, a plurality of T shape holes have been seted up to the surface of security board, every T shape hole all corresponds one the round hole, a plurality of all swing joint fixed pin in the T shape hole, the shape of fixed pin is the T shape.

Preferably: the bottom of the fixing pin is connected with one end of the spring, and the other end of the spring is connected with the inner bottom surface of the T-shaped hole.

Preferably: a reinforcing plate is arranged between the transverse plate and the frame body.

The utility model has the technical effects that:

1) When the students feel that the pull is not moved, the switch is started, the second hydraulic cylinder works, the second telescopic rod stretches out, the safety plate moves on the guide rail at a position close to the round hole until the fixed pin on the safety plate completely enters the round hole, at the moment, the weight block is blocked on the upper surface of the fixed pin when falling down, the direct falling down of the weight block is avoided, muscle strain of the students is caused, and then potential safety hazards in training are eliminated;

2) When the student feels that the pull is motionless, the switch is started, the first telescopic rod of the first hydraulic cylinder drives the brake frame to move upwards until the brake sheet fixes the steel cable, the steel cable is not moving, at the moment, the steel cable pulls the pull rod, the pull rod pulls the bolt, the bolt fixes the weight block, and the student only needs to loosen two hands.

Drawings

FIG. 1 is an overall view of the present utility model;

FIG. 2 is an overall upper cross-sectional view of the present utility model;

FIG. 3 is an overall lower cross-sectional view of the present utility model;

fig. 4 is an enlarged view at a in fig. 3.

In the figure: 1. a base; 2. a frame body; 3. a guide rail; 4. a fixing plate; 5. a guide post; 6. a weight block; 7. a cross plate; 8. a pulley; 9. a first hydraulic cylinder; 10. a brake frame; 11. a pull rod; 12. a plug pin; 13. a handle; 14. a second hydraulic cylinder; 15. a security plate; 16. a wire rope; 17. a round hole; 18. a first fixing hole; 19. a T-shaped aperture; 20. a fixing pin; 21. a spring; 22. a second fixing hole; 23. a brake plate; 24. reinforcing plate.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying positive importance.

The utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1-4, the stretcher for physical classroom fitness of the utility model comprises a base 1, wherein the upper surface of the base 1 is connected with a frame body 2, a guide rail 3 and a fixed plate 4, the upper surface of the frame body 2 is connected with a transverse plate 7, a reinforcing plate 24 is arranged between the transverse plate 7 and the frame body 2 and used for reinforcing the connection between the frame body 2 and the transverse plate 7, a pulley 8 is arranged on the inner upper surface of the frame body 2, a pulley 8 is arranged on the lower surface of the transverse plate 7, the phenomenon of blocking when a weight block 6 is pulled is reduced, two guide posts 5 are arranged in the frame body 2, a plurality of weight blocks 6 are movably connected in the two guide posts 5, through holes with the upper surface and the lower surface of the plurality of weight blocks 6 penetrating through are respectively arranged on the upper surface and lower surface of the plurality of weight blocks 6, a pull rod 11 is movably connected in the through holes, a plurality of weight blocks 6 are respectively provided with a first fixing hole 18 penetrating front and back through the end surfaces of the pull rod 11, a plurality of second fixing holes 22 are respectively arranged on the surfaces of the pull rod 11, the second fixing holes 22 respectively correspond to the plurality of first fixing holes 18, one end surfaces of the first fixing holes 18 are movably connected 12 in one end, a proper weight block 11 is conveniently pulled by a wire rope 16, one end 13 is conveniently connected to the other end of the upper surfaces of the two end switches 13, and the other end of the two end switches 13 are connected by adopting wireless switches 13;

the surface swing joint safety plate 15 of guide rail 3, the surface connection second pneumatic cylinder 14 of fixed plate 4, the second telescopic link of second pneumatic cylinder 14 passes the surface that fixed plate 4 connects safety plate 15, the side of support body 2 is equipped with a plurality of round holes 17, a plurality of T shape holes 19 have been seted up on the surface of safety plate 15, every T shape hole 19 all corresponds a round hole 17, all swing joint fixed pin 20 in a plurality of T shape holes 19, fixed pin 20's shape is the T shape, the one end of spring 21 is connected to the bottom of fixed pin 20, the interior bottom surface of T shape hole 19 is connected to the other end of spring 21.

When the student feels that the pulling is still, the switch is started, the second hydraulic cylinder 14 works, the second telescopic rod stretches out, the safety plate 15 moves on the guide rail 3 at a position close to the round hole 17 until the fixed pin 20 on the safety plate 15 completely enters the round hole 17, at the moment, the weight block 6 can be clamped on the upper surface of the fixed pin 20 when falling down, the weight block 6 is prevented from directly falling down, muscle strain of the student is caused, and then potential safety hazards in training are eliminated.

In another embodiment:

the upper surface of diaphragm 7 is equipped with first pneumatic cylinder 9, the first telescopic link of first pneumatic cylinder 9 connects brake frame 10, brake frame 10 passes the upper surface connection braking vane 23 of diaphragm 7, braking vane 23 is located the below of cable 16, be equipped with the brake wagon on the braking vane 23, when the student feels and draws motionless, start the switch, the first telescopic link of first pneumatic cylinder 9 drives brake frame 10 and upwards moves, until the brake wagon is fixed cable 16, cable 16 is not moving, cable 16 pulls pull rod 11 at this moment, pull rod 11 pulls bolt 12, bolt 12 fixes weight piece 6, the student only need loosen both hands can.

Working principle:

selecting proper weight, inserting a bolt 12 into a proper first fixing hole 18, inserting the bolt 12 into a second fixing hole 22 while inserting the bolt 12 into the first fixing hole 18, fixing the weight block 6 and the pull rod 11, pulling the handle 13 to pull the steel cable 16, moving the steel cable 16 on the two pulleys 8, rotating the two pulleys 8, driving the pull rod 11 to move upwards by the steel cable 16, moving the pull rod 11 upwards with the bolt 12, driving the weight block 6 to move upwards by the bolt 12, loosening the handle 13 again, and repeating the pulling and loosening of the handle 13 to finish the training of stretching;

embodiment one:

when the weight block 6 cannot be safely put down, the switch is started, the second hydraulic cylinder 14 works, the second telescopic rod stretches out, the safety plate 15 moves on the guide rail 3 at a position close to the round hole 17 until the fixed pin 20 on the safety plate 15 completely enters the round hole 17, when the weight block 6 is blocked in the round hole 17, the fixed pin 20 moves inwards in the T-shaped hole 19, the fixed pin 20 which is not blocked by the weight block 6 directly passes through the round hole 17, at the moment, the weight block 6 can be blocked on the upper surface of the fixed pin 20 when falling down, the steel cable 16 is prevented from being pulled when the weight block 6 directly falls down, the handle 13 is pulled by the steel cable 16, and the student is pulled by the handle 13, so that the student is injured in training;

embodiment two:

when the weight block 6 cannot be safely put down, the switch is started, the first telescopic rod of the first hydraulic cylinder 9 drives the brake frame 10 to move upwards until the brake shoe on the brake frame 10 contacts the surface of the steel cable 16, at the moment, the steel cable 16 is fixed between the steel cable 16 and the transverse plate 7 by the brake shoe, the brake shoe plays a role in fixing the steel cable 16 through friction force with the steel cable 16, the steel cable 16 does not move any more, at the moment, the steel cable 16 pulls the pull rod 11, the pull rod 11 pulls the plug pin 12, the plug pin 12 fixes the weight block 6, and a student only needs to loosen two hands;

embodiment III:

the first embodiment and the second embodiment can be performed simultaneously, so that the safety of student training is further ensured.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The utility model provides a stretcher for physical classroom body-building, its characterized in that, includes base (1), frame (2), guide rail (3) and fixed plate (4) are connected to the upper surface of base (1), diaphragm (7) are connected to the upper surface of frame (2), be equipped with two guide pillars (5) in frame (2), two equal swing joint has a plurality of weights (6) in guide pillar (5), the surface swing joint safety plate (15) of guide rail (3), the surface connection second pneumatic cylinder (14) of fixed plate (4), the second telescopic link of second pneumatic cylinder (14) passes fixed plate (4) are connected the surface of safety plate (15).

2. The stretcher for physical classroom fitness according to claim 1, wherein: the inner upper surface of the frame body (2) is provided with a pulley (8), and the lower surface of the transverse plate (7) is provided with the pulley (8).

3. The stretcher for physical classroom fitness according to claim 2, characterized in that: the upper surface of a plurality of weight pieces (6) all is equipped with the through-hole that upper and lower surface runs through mutually, swing joint has pull rod (11) in the through-hole, a plurality of first fixed orifices (18) that run through around all having been seted up to weight piece (6) terminal surface, the surface of pull rod (11) is equipped with a plurality of second fixed orifices (22), a plurality of second fixed orifices (22) all correspond a plurality of first fixed orifices (18), one of them swing joint bolt (12) in first fixed orifices (18).

4. A physical classroom fitness stretcher according to claim 3, characterized in that: the upper surface of the pull rod (11) is connected with one end of a steel cable (16), the other end of the steel cable (16) penetrates through the surfaces of the two pulleys (8) to be connected with a handle (13), and the handle (13) is provided with a switch.

5. The stretcher for physical classroom fitness according to claim 4, wherein: the upper surface of diaphragm (7) is equipped with first pneumatic cylinder (9), the first telescopic link of first pneumatic cylinder (9) is connected and is stopped frame (10), it passes to stop frame (10) the upper surface of diaphragm (7) is connected braking vane (23), braking vane (23) are located the below of cable wire (16).

6. The stretcher for physical classroom fitness according to claim 4, wherein: the side of support body (2) is equipped with a plurality of round holes (17), a plurality of T shape holes (19) have been seted up on the surface of security board (15), every T shape hole (19) all correspond one round hole (17), a plurality of all swing joint fixed pin (20) in T shape hole (19), the shape of fixed pin (20) is the T shape.

7. The stretcher for physical classroom fitness according to claim 6, wherein: the bottom of the fixing pin (20) is connected with one end of a spring (21), and the other end of the spring (21) is connected with the inner bottom surface of the T-shaped hole (19).

8. The stretcher for physical classroom fitness according to claim 1, wherein: a reinforcing plate (24) is arranged between the transverse plate (7) and the frame body (2).