CN110694221B - A injury prevention sports apparatus for muscle training - Google Patents

Abstract

The invention discloses an injury-preventing sports apparatus for muscle training, which comprises support columns, a fixing plate, a seat plate, a holding rod and a device body, wherein two parallel support columns are arranged at two ends of the device body, and the bottom ends of the support columns are provided with round platform-shaped support seats. According to the invention, the holding block and the balloon are respectively arranged on the holding rod and the hose, and the adjusting pipe is connected to one side of the outer side wall of the sealing column, so that when a trainer looses the holding block and the balloon in the training process or suddenly slips off the holding rod and breaks away from the holding block, the sealing plug is reset under the action of the first reset spring to seal the air guide groove, the situation that the balancing weight is reset instantly after the trainer slips off the holding rod to cause damage is avoided, the reset of the backup plate is limited, the situation that the trainer creeps down instantly to cause damage to the waist due to insufficient physical strength is avoided, the fixed plate can limit the falling height of the holding rod in the falling process of the holding rod, the situation that the holding rod falls abnormally to cause damage to the trainer is avoided, and the use.

Description

A injury prevention sports apparatus for muscle training

Technical Field

The invention relates to the technical field of sports equipment, in particular to an injury-preventing sports equipment for muscle training.

Background

The sports equipment is a general term of various equipment, equipment and articles used in competitive sports competition and body-building exercise, the sports equipment and sports are interdependent and mutually promoted, the popularization of sports and the diversification of sports items lead the variety and specification of sports equipment to be developed, the sports equipment with the same excellent quality, stable performance and safety and reliability not only can ensure that the competitive competition is carried out under the impartial and fierce conditions, but also creates necessary material conditions for promoting the improvement of the exercise level, the human body is an organic whole formed by various organ systems, when carrying out sports activities, the human body looks like only muscles are in activity, the organs such as the respiration and the blood circulation of the body are all in the activity, and all the organs are coordinated by commanding of cerebral cortex, the preparation activity is just for improving the excitation of nerve cells of the large cortex, the preparation activity can lead the body temperature to be slightly raised, the muscle and the tendon are in good state, and the elasticity and the extensibility are good, so that the muscle and the tendon are not pulled or torn due to sudden contraction.

At present, the present most security performance of injury-preventing sports apparatus that is used for muscle training is lower, at the in-process of training muscle strength, most can all carry out the physical training of limit and just can promote muscle strength, human being most comparatively tired out in training later stage, and training intensity is unchangeable, then cause very easily at the in-process of training because training personnel grip the less moment that causes the apparatus of dynamics and reset in the twinkling of an eye, when the apparatus resets in the twinkling of an eye, cause the damage to the training person easily, the apparatus that causes resets in the twinkling of an eye when can not support training strength, still cause the strain or tear to training person's muscle easily, and be not convenient for promote the security that the apparatus used and the multifunctionality of training.

Disclosure of Invention

The invention aims to provide an anti-injury sports apparatus for muscle training, which solves the problems that most of the existing anti-injury sports apparatuses for muscle training in the background art have lower safety performance, most of the existing anti-injury sports apparatuses for muscle training can be subjected to extreme physical training to improve the muscle strength in the process of training the muscle strength, most of human bodies are tired in the later period of training, the training strength is inconvenient, the instantaneous resetting of the apparatus is easily caused due to the fact that the holding strength of a trainer is small in the training process, when the apparatus is instantaneously reset, the trainer is easily damaged, and when the apparatus is instantaneously reset due to the fact that the training strength cannot be supported, the muscle of the trainer is easily pulled or torn, and the safety of the use of the apparatus and the multi-functionality of the training are inconvenient to improve.

In order to achieve the purpose, the invention provides the following technical scheme: an anti-damage sports apparatus for muscle training comprises support columns, a fixed plate, a seat plate, a holding rod and an apparatus body, wherein two parallel support columns are arranged at two ends of the apparatus body, round platform-shaped support seats are arranged at the bottom ends of the support columns, a first fixed rod is horizontally welded between the top ends of the support columns at the two ends, a seat plate is horizontally welded between the bottom ends of the support columns at the two ends, a containing groove is arranged at one end of the top of the seat plate, a backup plate is hinged to the top of the seat plate at the position of the containing groove, a limiting rod in an arc shape is welded at the bottom of the seat plate right below the containing groove, a telescopic groove is arranged in the limiting rod, a pulling rod matched with the limiting rod is hinged to the bottom of the backup plate, the bottom end of the pulling rod extends into the telescopic groove, a first extrusion spring is arranged between the bottom end of the pulling rod and the telescopic groove, a first sealing, the first sealing column is communicated with the telescopic groove, a first adjusting pipe is welded on one side, away from the limiting rod, of the outer side wall of the first sealing column, a fixing frame is welded at the bottom end of the outer side wall, away from one side, of the supporting columns at the two ends of the device body, a second sealing column is welded at the bottom end of the inner side of the fixing frame, a limiting plate is welded on the outer side wall of the fixing frame right above the second sealing column, a first piston groove is arranged inside the second sealing column, a sliding rod is inserted into the top of the second sealing column in a penetrating manner, the bottom end of the sliding rod extends into the first piston groove and is provided with a first piston matched with the first piston groove, the top end of the sliding rod extends to the upper portion of the limiting plate and is provided with a supporting plate, a second extrusion spring is arranged between the bottom of the first piston and the first piston groove, and one side, the middle positions of the inner parts of the second adjusting pipe and the first adjusting pipe are respectively provided with a partition plate, the inner parts of the adjusting pipes at one side of the partition plate close to the sealing column are respectively provided with a second piston groove, an air guide groove is respectively arranged between the adjusting pipe at the position of the second piston groove and the sealing column, the inner parts of the first adjusting pipe and the second adjusting pipe at one side of the partition plate far away from the second piston groove are respectively provided with a third piston groove, the partition plate is inserted with a guide rod, one end of the guide rod extends to the inner part of the second piston groove and is provided with a sealing plug matched with the air guide groove, the other end of the guide rod extends to the inner part of the third piston groove and is provided with a second piston matched with the third piston groove, a first reset spring is arranged on the outer side of the guide rod between the second piston and the partition plate, the outer side wall of the adjusting pipe at one side of the second piston close to the partition plate is respectively provided with an air inlet, the adjusting pipes at, the air inlet at the position of the first adjusting pipe is connected with a hose, one end of the hose, far away from the air inlet, extends to the upper part of the seat plate and is provided with a saccule, the outer side wall of the support column above the fixing frame is provided with two mounting rods which are vertical to the support column, one ends of the mounting rods, far away from the support column, are provided with fixed pulleys, the middle position at the top of the support plate is connected with two first steel wire ropes, the top of the support plate at the outer side of the first steel wire ropes is provided with a balancing weight, one ends of the two first steel wire ropes, far away from the balancing weight, are respectively wound on the outer sides of the fixed pulleys at the upper end and the lower end and are provided with connectors, the same side of the outer side wall of the support column is obliquely and downwards, the device comprises a device body, wherein first guide posts are welded at the bottom of the outer sides of fixing plates at two ends of the device body, second guide posts are welded at the top ends of the inner sides of the fixing plates at the two ends of the device body, guide grooves are formed in the second guide posts and the first guide posts, connecting rods are inserted in the top portions of the second guide posts and the top portions of the first guide posts, movable blocks matched with the guide grooves are arranged at the bottom ends of the connecting rods, the top ends of the connecting rods extend to the upper portions of the guide posts and are provided with mounting seats, fixing holes are formed in the mounting seats, openings are formed in the outer side walls of the first guide posts and the second guide posts at the bottom end positions of the guide posts, guide wheels are arranged at the opening positions, second steel wire ropes are connected to the bottoms of the movable blocks, one ends, far away from the movable blocks, of the second steel wire ropes are wound on the outer sides of the guide wheels and are provided with connecting seats, and the connecting head and the connecting seat are both provided with through holes matched with the first fixing bolt, a holding rod is detachably arranged between the mounting seats on the first guide posts at the two ends of the device body, the two ends of the holding rod are both provided with mounting grooves, fixing screws matched with the fixing holes are mounted inside the mounting grooves, one ends of the fixing screws extend to the outer side of the holding rod and are provided with nuts, the two ends of the holding rod are both provided with first internal thread holes matched with the fixing screws, the two ends of the inside of the holding rod at one side, close to each other, of the mounting grooves are both provided with fourth piston grooves, piston rods perpendicular to the holding rod are inserted on the outer side walls of the holding rod at the positions of the fourth piston grooves, the bottom ends of the piston rods are both provided with third pistons matched with the fourth piston grooves, a second reset spring is arranged between the bottom of the third pistons and the fourth piston grooves, the top ends of the piston rods extend to the outer side of the holding rod and are welded with holding blocks parallel to the holding, the holding rod of fourth piston tank bottom position department inside all is equipped with the air channel, the one end that the fourth piston tank was kept away from to the air channel extends to holding rod lateral wall position department and is connected with the air duct, and the one end that the holding rod was kept away from to both ends air duct is connected with the air inlet on the second control tube in both ends respectively.

Preferably, the inside that backup plate one end was kept away from to the bedplate is equipped with the slot, and the one end of slot extends to bedplate lateral wall position department, and the inside bottom of slot is equipped with the spout, and the internally mounted of slot has the pull board, and the bottom of pull board be equipped with spout matched with slider.

Preferably, the connecting rods in the first guide post are all arc-shaped, and the connecting rods in the second guide post are vertical.

Preferably, the top of movable rod is equipped with the movable groove with bracing piece matched with, and the equidistant even arrangement in movable rod lateral wall one side of movable groove position department has arranged the ann and has changeed the hole, and the interlude has second fixing bolt on the ann changes the hole, and the bottom of bracing piece lateral wall is equipped with the second internal thread hole with second fixing bolt matched with.

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

1: have the backup plate through the top at the bedplate articulates, and be equipped with in the bottom of bedplate with backup plate matched with gag lever post, and utilize the sacculus with the activity of gag lever post and pull pole to control, be convenient for utilize the bedplate to carry out the sit up training on the one hand, take exercise abdominal muscle, the backup plate all the time with training person's back contact under the effect of first extrusion spring, whether the utilization is pressed down the sacculus and is realized that the pull pole can move in the inside of gag lever post, then when training is tired out or abdominal muscle is tired out, loosen the sacculus and fix the backup plate, thereby support the human body, increase the security of sit up training, increase the variety of training.

2: have the bracing piece through the bottom articulation at the fixed plate, and be equipped with the movable rod in the outside of bracing piece bottom, be convenient for utilize the movable rod to cooperate the height of adjustment fixed plate bottom with the bracing piece on the one hand, the inclination of adjustment fixed plate, the training person of the different heights of being convenient for uses, on the other hand utilizes the fixed plate at both ends to restrict the descending height of holding rod, can not produce the contact with training person's health at the in-process that the holding rod descends unusually, then hoisting device is carrying out the security of muscle training in-process.

3: be equipped with the balancing weight through the top at the backup pad to utilize wire rope and pulley to cooperate the weight transmission to holding rod position department with the balancing weight, make the holding rod unanimous all the time at the strength size that the in-process that carries out the muscle training received, promote the effect of muscle training.

4: the holding rod and the hose are respectively provided with the holding block and the saccule, and one side of the outer side wall of the sealing column is connected with the adjusting tube, so that the sealing column is utilized to play a role of a valve in the process of carrying out muscle training, when a trainer normally trains to hold the holding blocks at two ends of the holding rod or the saccules on the hose, extruded air enters the inside of the third piston groove to force the second piston and the sealing plug to move rightwards so as to open the air guide groove, the first piston can freely move in the first piston groove at the moment, the trainer can carry out muscle training, and after the trainer loosens the holding block or suddenly slips the holding rod to be separated from the holding block, the sealing plug resets under the action of the first reset spring to seal the air guide groove, and the balancing weight is utilized to extrude the first piston so as to generate negative pressure in the first piston groove, promote the leakproofness of sealing plug, then restrict the whereabouts of balancing weight, avoid the balancing weight to restore to the throne in the twinkling of an eye and cause the damage behind training person's slippage holding rod, the restriction backup plate resets, avoid training person because the physical power is weak to lie down in the twinkling of an eye and cause the damage to the waist, and the fixed plate can also highly restrict the whereabouts of holding rod at holding rod whereabouts in-process, avoid the unusual whereabouts of holding rod to cause the damage to training person, the security that hoisting device used.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a front view of the fixing frame of the present invention;

FIG. 4 is an enlarged view of the interior of the adjusting tube of the present invention;

FIG. 5 is a schematic view of the internal structure of a first guide post according to the present invention;

FIG. 6 is a schematic view of an internal structure of a second fixing post according to the present invention;

FIG. 7 is a schematic view of the internal structure of the grip of the present invention;

FIG. 8 is a schematic view of the internal structure of the seat plate of the present invention;

FIG. 9 is an enlarged view of the inside of the movable rod of the present invention;

FIG. 10 is a schematic view of the internal structure of the connector and the connecting socket of the present invention after being plugged;

fig. 11 is an enlarged schematic view of the portion a of the present invention.

In the figure: 1. a support pillar; 2. a fixing plate; 3. a fixed pulley; 4. a fixed mount; 5. a first wire rope; 6. a seat plate; 7. a second movable plate; 8. sealing the column; 9. a supporting seat; 10. a second fixing bar; 11. a second guide post; 12. a movable rod; 13. a second fixing bolt; 14. a support bar; 15. a first guide post; 16. a holding rod; 17. a mounting seat; 18. a device body; 19. a first fixing lever; 20. mounting a rod; 21. a balancing weight; 22. an air duct; 23. a connector; 24. a second wire rope; 25. a connecting seat; 26. a guide wheel; 27. a limiting plate; 28. a support plate; 29. a first piston groove; 30. a second pressing spring; 31. a first piston; 32. a slide bar; 33. a second regulating tube; 34. an air inlet; 35. an air guide port; 36. a connecting rod; 37. a guide groove; 38. an opening; 39. a movable block; 40. a fixing hole; 41. a gas guide groove; 42. a sealing plug; 43. a second piston groove; 44. a partition plate; 45. a guide bar; 46. a second piston; 47. a third piston groove; 48. a first return spring; 49. a hose; 50. a balloon; 51. a receiving groove; 52. a limiting rod; 53. a pull rod; 54. a through hole; 55. a first fixing bolt; 56. mounting grooves; 57. a piston rod; 58. a fourth piston groove; 59. a holding block; 60. a first internally threaded bore; 61. fixing the screw rod; 62. a nut; 63. a vent channel; 64. a second return spring; 65. a third piston; 66. a second internally threaded bore; 67. a movable groove; 68. mounting holes; 69. a first pressing spring; 70. a telescopic groove; 71. a first seal post; 72. a first regulating tube; 73. a slot; 74. a chute; 75. and a drawing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.

Referring to fig. 1-11, an embodiment of the present invention: an injury-preventing sports apparatus for muscle training comprises support columns 1, a fixed plate 2, a seat plate 6, a holding rod 16 and a device body 18, wherein two parallel support columns 1 are arranged at two ends of the device body 18, a round table-shaped support seat 9 is arranged at the bottom end of each support column 1, a first fixed rod 19 is horizontally welded between the top ends of the support columns 1 at the two ends, the seat plate 6 is horizontally welded between the bottom ends of the support columns 1 at the two ends, a containing groove 51 is arranged at one end of the top of the seat plate 6, a backup plate 7 is hinged at the top of the seat plate 6 at the position of the containing groove 51, an arc-shaped limiting rod 52 is welded at the bottom of the seat plate 6 right below the containing groove 51, a telescopic groove 70 is arranged inside the limiting rod 52, a drawing rod 53 matched with the limiting rod 52 is hinged at the bottom of the backup plate 7, the bottom end of the drawing rod 53 extends into the telescopic groove 70, a first extrusion, a first sealing column 71 is welded on one side of the bottom end of the outer side wall of the limiting rod 52, the first sealing column 71 is communicated with the telescopic groove 70, a first adjusting pipe 72 is welded on one side of the outer side wall of the first sealing column 71, which is far away from the limiting rod 52, a slot 73 is arranged inside one end of the seat plate 6, which is far away from the backup plate 7, one end of the slot 73 extends to the position of the outer side wall of the seat plate 6, a sliding groove 74 is arranged at the bottom end inside the slot 73, a drawing plate 75 is arranged inside the slot 73, a sliding block matched with the sliding groove 74 is arranged at the bottom of the drawing plate 75, fixing frames 4 are welded at the bottom ends of the outer side walls, which are far away from one side of the support columns 1 at two ends of the device body 18, second sealing columns 8 are welded at the bottom ends of the inner sides of the fixing frames 4, a limiting plate 27 is welded on the outer, the bottom end of the slide bar 32 extends to the inside of the first piston groove 29 and is provided with a first piston 31 matched with the first piston groove 29, the top end of the slide bar 32 extends to the upper part of the limit plate 27 and is provided with a support plate 28, a second extrusion spring 30 is arranged between the bottom of the first piston 31 and the first piston groove 29, one side of the top end of the outer side wall of the second sealing column 8 is connected with a second adjusting pipe 33, a partition plate 44 is arranged at the middle position of the inside of the second adjusting pipe 33 and the first adjusting pipe 72, a second piston groove 43 is arranged inside the adjusting pipe at the side of the partition plate 44 close to the sealing column, an air guide groove 41 is arranged between the adjusting pipe at the position of the second piston groove 43 and the sealing column, a third piston groove 47 is arranged inside the first adjusting pipe 72 and the second adjusting pipe 33 at the side of the partition plate 44 far away from the second piston groove 43, a guide rod 45 is inserted in the partition plate 44, one end of the guide rod 45 extends to the inside of the second piston groove 43 and is provided with, the other end of the guide rod 45 extends into the third piston groove 47 and is provided with a second piston 46 matched with the third piston groove 47, a first return spring 48 is arranged on the outer side of the guide rod 45 between the second piston 46 and the partition 44, the outer side wall of the adjusting pipe at the position of one side of the second piston 46 close to the partition 44 is provided with an air inlet 34, the adjusting pipe at the position of the second piston groove 43 is provided with an air guide port 35, the air inlet 34 at the position of the first adjusting pipe 72 is connected with a hose 49, one end of the hose 49 far away from the air inlet 34 extends to the upper part of the seat plate 6 and is provided with a balloon 50, the outer side wall of the support column 1 above the fixed frame 4 is provided with two mounting rods 20 vertical to the support column 1, one end of the mounting rod 20 far away from the support column 1 is provided with a fixed pulley 3, the middle position at the top of the support plate 28 is connected with two first steel wire ropes 5, and one end of two first steel wire ropes 5 far away from the balancing weight 21 is respectively wound on the outer sides of the upper and lower end fixed pulleys 3 and is provided with a connector 23, the same side of the outer side wall of the supporting column 1 is obliquely and downwards hinged with a fixed plate 2, one end of the fixed plate 2 far away from the supporting column 1 is hinged with a supporting rod 14, the bottom end of the supporting rod 14 is sleeved with a movable rod 12, the top of the movable rod 12 is provided with a movable groove 67 matched with the supporting rod 14, one side of the outer side wall of the movable rod 12 at the position of the movable groove 67 is evenly provided with a rotation mounting hole 68 at equal intervals, a second fixed bolt 13 is inserted in the rotation mounting hole 68, the bottom end of the outer side wall of the supporting rod 14 is provided with a second internal threaded hole 66 matched with the second fixed bolt 13, a second fixed rod 10 is welded between the movable rod 12 and the supporting column 1, the bottom ends of the outer sides, second guide post 11 all is equipped with guide way 37 with the inside of first guide post 15, connecting rod 36 has all been alternate at the top of second guide post 11 and first guide post 15, the bottom of connecting rod 36 is equipped with and guide way 37 matched with movable block 39, the top of connecting rod 36 all extends to the guide post top and is equipped with mount pad 17, and all be equipped with fixed orifices 40 on the mount pad 17, the inside connecting rod 36 of first guide post 15 all is circular-arcly, and the inside connecting rod 36 of second guide post 11 is vertical form. The outer side walls of the first guide post 15 and the second guide post 11 at the bottom of the guide groove 37 are both provided with an opening 38, the position of the opening 38 is provided with a guide wheel 26, the bottom of the movable block 39 is connected with a second steel wire rope 24, one end of the second steel wire rope 24 far away from the movable block 39 is wound on the outer side of the guide wheel 26 and is provided with a connecting seat 25 matched with the connecting head 23, a first fixing bolt 55 is inserted on the connecting seat 25, through holes 54 matched with the first fixing bolt 55 are arranged on the connecting head 23 and the connecting seat 25, the holding rod 16 is detachably arranged between the mounting seats 17 on the first guide post 15 at the two ends of the device body 18, the two ends of the holding rod 16 are both provided with mounting grooves 56, a fixing screw 61 matched with the fixing hole 40 is arranged inside the mounting grooves 56, one end of the fixing screw 61 extends to the outer side of the holding rod 16 and is provided with a nut 62, and the two ends of the holding rod 16 are both provided with, the two ends of the inside of the holding rod 16, which are close to one side of the mounting groove 56, are provided with fourth piston grooves 58, the outer side wall of the holding rod 16 at the position of the fourth piston grooves 58 is provided with piston rods 57 perpendicular to the holding rod 16 in an inserted manner, the bottom ends of the piston rods 57 are provided with third pistons 65 matched with the fourth piston grooves 58, a second return spring 64 is arranged between the bottom of the third piston 65 and the fourth piston grooves 58, the top ends of the piston rods 57 extend to the outer side of the holding rod 16 and are welded with holding blocks 59 parallel to the holding rod 16, the inside of the holding rod 16 at the bottom end of the fourth piston grooves 58 is provided with vent grooves 63, one end of the vent grooves 63, which is far away from the fourth piston grooves 58, extends to the outer side wall of the holding rod 16 and is connected with air ducts 22, and one ends of the air ducts 22, which are far away from the holding rod 16, are.

The working principle is as follows: when muscle training is needed, the training mode is selected as needed, the second steel wire rope 24 and the first steel wire rope 5 at the position of the first guide column 15 or the second guide column 11 are connected with the connector 23 through the connecting seat 25, the first guide column 15 or the second guide column 11 at two ends are connected with the counterweight 21, whether the drawing plate 75 is drawn out of the seat plate 6 is selected, when normal muscle training is needed, the second steel wire rope 24 and the first steel wire rope 5 at the position of the first guide column 15 are connected with the connector 23 through the connecting seat 25, a human body sits on the seat plate 6, the holding rod 16 and the holding block 59 are held by hands, air in the fourth piston groove 58 is conveyed to the inside of the third piston groove 47 in the process of squeezing the holding block 59 to force the sealing plug 42 to be opened, at the moment, the first piston groove 29 is communicated with the outside air through the air guide port 35, so that the support plate 28 and the counterweight 21 can freely move along with the pulling of the steel wire ropes, for muscle exercise, when muscle exercise intensity needs to be enhanced, the pulling plate 75 is pulled out, the nut 62 fixed on the first guide post 15 is loosened, the fixing screw 60 is rotated to be matched with the first internal threaded hole 60 to enable the fixing screw 60 to shrink into the mounting groove 56, then the fixing screws 60 at the two ends are separated from the fixing hole 40 on the mounting seat 17 at the position of the first guide post 15, the fixing screws 60 at the two ends of the holding rod 16 are aligned with the fixing hole 40 on the second guide post 11, the fixing screw 60 is rotated to be inserted into the fixing hole 40 to be fixed by the nut 62, the second steel wire rope 24 is replaced to be connected with the first steel wire rope 5 at the position of the second guide post 11, the trainer lies on the seat plate 6, the holding rod 16 is held by hands, the holding block 59 pushes the holding rod 16 upwards to carry out muscle exercise, in the two exercise modes, after the trainer loosens the holding block 59 or suddenly slips the holding rod 16 by hands to separate from the holding block 59, the sealing plug 42 is reset under the action of the first reset spring 48 to seal the air guide groove 41, the balancing weight 21 is utilized to extrude the first piston 31 to enable the interior of the first piston groove 29 to generate negative pressure, the sealing performance of the sealing plug 42 is improved, the falling of the balancing weight 21 is limited, the situation that the balancing weight 21 is instantly reset after a trainer slips off the holding rod 16 to cause damage is avoided, the fixing plate 2 can also limit the falling height of the holding rod 16 in the falling process of the holding rod 16 to prevent the holding rod 16 from being abnormally fallen to cause damage to the trainer, the safety of the use of the lifting device is improved, when the sit-up training needs to be carried out, after the back of the trainer is close to the back plate 7 to lie, the back of the trainer embraces the head with two hands and extrudes the balloon 50 to extrude the air inside the balloon 50 to the inside of the first adjusting tube 72 to enable the sealing plug 42 to be opened, at the moment, the telescopic groove 70 is communicated with the first sealing column, the training person carries out the sit up training, and backup plate 7 hugs closely with training person's back all the time, when not enough needs fixed backup plate 7 of physical power to support, loosens sacculus 50 and closes air guide groove 41, and then flexible groove 70 forms airtight air, and backup plate 7 is fixed, promotes the security and the convenience of training.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. An injury-preventing sports apparatus for muscle training, comprising a support column (1), a fixing plate (2), a seat plate (6), a holding rod (16) and a device body (18), characterized in that: the device is characterized in that two parallel supporting columns (1) are arranged at two ends of the device body (18), the bottom ends of the supporting columns (1) are respectively provided with a supporting seat (9) in a round table shape, a first fixing rod (19) is horizontally welded between the top ends of the supporting columns (1) at the two ends, a seat board (6) is horizontally welded between the bottom ends of the supporting columns (1) at the two ends, one end of the top of the seat board (6) is provided with an accommodating groove (51), the top of the seat board (6) at the position of the accommodating groove (51) is hinged with a backup plate (7), a limiting rod (52) in an arc shape is welded at the bottom of the seat board (6) under the accommodating groove (51), a telescopic groove (70) is arranged in the limiting rod (52), a drawing rod (53) matched with the limiting rod (52) is hinged to the bottom of the backup plate (7), and the bottom end of the drawing, and a first extrusion spring (69) is arranged between the bottom end of the drawing rod (53) and the telescopic groove (70), a first sealing column (71) is welded on one side of the bottom end of the outer side wall of the limiting rod (52), the first sealing column (71) is communicated with the telescopic groove (70), a first adjusting pipe (72) is welded on one side of the outer side wall of the first sealing column (71) far away from the limiting rod (52), fixing frames (4) are welded on the bottom ends of the outer side walls of the two ends of the device body (18) far away from one side of the supporting columns (1) each other, second sealing columns (8) are welded on the bottom ends of the inner sides of the fixing frames (4), a limiting plate (27) is welded on the outer side wall of the fixing frame (4) right above the second sealing columns (8), a first piston groove (29) is arranged inside the second sealing column (8), and a sliding rod (32) is inserted into the top of, the bottom of slide bar (32) extends to first piston groove (29) inside and be equipped with first piston groove (29) matched with first piston (31), the top of slide bar (32) extends to limiting plate (27) top and is equipped with backup pad (28), and is equipped with second extrusion spring (30) between the bottom of first piston (31) and first piston groove (29), one side on second sealed post (8) lateral wall top is connected with second regulating tube (33), second regulating tube (33) all are equipped with baffle (44) with the inside intermediate position department of first regulating tube (72), baffle (44) are close to inside second piston groove (43) all being equipped with of regulating tube on one side of sealed post, all be equipped with between the regulating tube of second piston groove (43) position department and the sealed post and lead gas groove (41), baffle (44) keep away from first regulating tube (72) and the inside third piston that all are equipped with of second regulating tube (33) on one side of second piston groove (43), the baffle (44) all are equipped with A groove (47), a guide rod (45) is inserted on the partition plate (44), one end of the guide rod (45) extends into the second piston groove (43) and is provided with a sealing plug (42) matched with the air guide groove (41), the other end of the guide rod (45) extends into the third piston groove (47) and is provided with a second piston (46) matched with the third piston groove (47), a first return spring (48) is arranged on the outer side of the guide rod (45) between the second piston (46) and the partition plate (44), the outer side wall of the adjusting pipe at the position of one side, close to the partition plate (44), of the second piston (46) is provided with an air inlet (34), the adjusting pipe at the position of the second piston groove (43) is provided with an air guide port (35), a hose (49) is connected on the air inlet (34) at the position of the first adjusting pipe (72), and one end, far away from the air inlet (34), of the hose (49) extends to the upper part of the seat plate (6) and is provided with a balloon (50), the outer side wall of the supporting column (1) above the fixing frame (4) is provided with two mounting rods (20) which are perpendicular to the supporting column (1), one end, far away from the supporting column (1), of each mounting rod (20) is provided with a fixed pulley (3), the middle position of the top of each supporting plate (28) is connected with two first steel wire ropes (5), the top of each supporting plate (28) on the outer side of each first steel wire rope (5) is provided with a counterweight block (21), one ends, far away from the counterweight block (21), of the two first steel wire ropes (5) are respectively wound on the outer sides of the fixed pulleys (3) at the upper end and the lower end and provided with a connector (23), the same side of the outer side wall of the supporting column (1) is obliquely and downwards hinged with a fixing plate (2), one end, far away from the supporting column (1), of the fixing plate, all welded have second dead lever (10) between movable rod (12) and support column (1), the bottom in device body (18) both ends fixed plate (2) outside all welds first guide post (15), and second guide post (11) all welds on the top of both ends fixed plate (2) inboard, the inside of second guide post (11) and first guide post (15) all is equipped with guide way (37), connecting rod (36) have all been worn to insert at the top of second guide post (11) and first guide post (15), the bottom of connecting rod (36) is equipped with movable block (39) with guide way (37) matched with, the top of connecting rod (36) all extends to the guide post top and is equipped with mount pad (17), and all is equipped with fixed orifices (40) on mount pad (17), first guide post (15) and second guide post (11) one side of guide way (37) bottom position department all are equipped with opening (38), the device is characterized in that a guide wheel (26) is arranged at the position of the opening (38), a second steel wire rope (24) is connected to the bottom of the movable block (39), one end, far away from the movable block (39), of the second steel wire rope (24) is wound on the outer side of the guide wheel (26) and provided with a connecting seat (25) matched with the connecting head (23), a first fixing bolt (55) is inserted into the connecting seat (25), through holes (54) matched with the first fixing bolt (55) are formed in the connecting head (23) and the connecting seat (25), a holding rod (16) is detachably mounted between mounting seats (17) on first guide columns (15) at two ends of the device body (18), mounting grooves (56) are formed in two ends of the holding rod (16), fixing screw rods (61) matched with the fixing holes (40) are mounted in the mounting grooves (56), one ends of the fixing screw rods (61) extend to the outer side of the holding rod (16) and are provided with nuts (62), and both ends of the holding rod (16) are provided with first internal threaded holes (60) matched with the fixing screw rods (61), the mounting grooves (56) are provided with fourth piston grooves (58) at both ends inside the holding rod (16) close to one side, the outer side wall of the holding rod (16) at the position of the fourth piston grooves (58) is provided with piston rods (57) perpendicular to the holding rod (16) in a penetrating manner, the bottom ends of the piston rods (57) are provided with third pistons (65) matched with the fourth piston grooves (58), a second return spring (64) is arranged between the bottom of the third pistons (65) and the fourth piston grooves (58), the top ends of the piston rods (57) extend to the outer side of the holding rod (16) and are welded with holding blocks (59) parallel to the holding rod (16), and the holding rod (16) at the bottom position of the fourth piston grooves (58) is provided with vent grooves (63) inside the holding rod (16), one end of the vent groove (63) far away from the fourth piston groove (58) extends to the outer side wall of the holding rod (16) and is connected with an air duct (22), and one ends of the air ducts (22) at the two ends far away from the holding rod (16) are respectively connected with air inlets (34) on the second adjusting pipes (33) at the two ends.

2. An atraumatic sports apparatus for muscle training as claimed in claim 1, wherein: the inside that backup plate (7) one end was kept away from in bedplate (6) is equipped with slot (73), and the one end of slot (73) extends to bedplate (6) lateral wall position department, and the inside bottom of slot (73) is equipped with spout (74), and the internally mounted of slot (73) has pull board (75), and the bottom of pull board (75) is equipped with the slider with spout (74) matched with.

3. An atraumatic sports apparatus for muscle training as claimed in claim 1, wherein: the connecting rods (36) in the first guide columns (15) are all arc-shaped, and the connecting rods (36) in the second guide columns (11) are vertical.

4. An atraumatic sports apparatus for muscle training as claimed in claim 1, wherein: the top of movable rod (12) is equipped with and has laid down a hole (68) with bracing piece (14) matched with movable groove (67), and the equidistant even arrangement in movable rod (12) lateral wall one side of movable groove (67) position department has been put and has been waited to change hole (68), has alternate second fixing bolt (13) on waited to change hole (68), and the bottom of bracing piece (14) lateral wall be equipped with second fixing bolt (13) matched with second internal thread hole (66).

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