CN112546557A

CN112546557A - High-tension dorsal muscle trainer for physical education

Info

Publication number: CN112546557A
Application number: CN202011410795.5A
Authority: CN
Inventors: 周鸿雁
Original assignee: Hunan University of Arts and Science
Current assignee: Hunan University of Arts and Science
Priority date: 2020-12-06
Filing date: 2020-12-06
Publication date: 2021-03-26

Abstract

The invention discloses a high-tension dorsal muscle trainer for physical education, which comprises a trainer main body, a dorsal muscle high-tension spring mechanism and a training mechanism lifting device. Even there is the high spring mechanism that draws of back muscle for the bottom stationary phase of training ware main part, the high spring mechanism that draws of back muscle's bottom fixedly connected with training mechanism elevating gear that draws spring mechanism, portable case is restrainted to training mechanism elevating gear's bottom fixedly connected with training ware, the peg is accomodate to the one end fixedly connected with that portable case was restrainted to the training ware, accomodate that the peg is fine to have embodied taking of this training ware and put the convenience, the fine the going on that has made things convenient for the training ware to transport of activity push rod, the high spring mechanism that draws of back muscle fine the operation convenience and the training high efficiency that have embodied this training ware, the fine controllability that has embodied this training ware of training mechanism elevating gear, the fine transportation that has made things convenient for the training ware of portable case is restrainted to the training ware carries, be suitable for the use in sports teaching equipment.

Description

High-tension dorsal muscle trainer for physical education

Technical Field

The invention belongs to the technical field of physical education teaching equipment, and particularly relates to a high-tension dorsal muscle trainer for physical education teaching.

Background

Along with the improvement of health consciousness of people, the importance of fitness is emphasized by people, various fitness modes are more and more common, and dorsal muscle training is a relatively less-concerned field for common fitness enthusiasts.

Present dorsal muscle training ware needs complicated assembly pulley structure, and is comparatively troublesome, is not suitable for the use of dorsal muscle training teaching, and present training ware is fixed design mostly, can't adjust according to the training person of different heights, and the too high or too short training person of part height trains very inconveniently, and the great comparatively heaviness of the most great volume of present training ware does not possess fine transport design, the unable fine demand that is applicable to sports teaching activity and uses.

Disclosure of Invention

The invention aims to: in order to solve the problems that the training operation proposed in the background art is complex and troublesome, and the training device does not have a good height adjustment design and a good carrying and transferring design, the high-tension dorsal muscle training device for physical education is provided.

The technical scheme adopted by the invention is as follows: a high-tension dorsal muscle trainer for physical education comprises a trainer main body, a dorsal muscle high-tension spring mechanism and a training mechanism lifting device, wherein the bottom end of the trainer main body is fixedly connected with the dorsal muscle high-tension spring mechanism, the bottom end of the dorsal muscle high-tension spring mechanism is fixedly connected with the training mechanism lifting device, and the bottom end of the training mechanism lifting device is fixedly connected with a trainer bundling portable box;

the back muscle high-tension spring mechanism is characterized in that a hollow inner embedded groove is fixedly connected to the inner side of the back muscle high-tension spring mechanism, a high-tension stress extension spring is fixedly connected to the inner side of the hollow inner embedded groove, a spring joint lantern ring is connected to the periphery of the back muscle high-tension spring mechanism in an embedded mode, a stress welding rod is tightly welded to the front of the spring joint lantern ring, and a back muscle training pulling handle is fixedly connected to the front of the stress welding rod;

the back muscle high-tension spring mechanism is characterized in that the bottom end of the back muscle high-tension spring mechanism is movably connected with a lifting drive screw, the bottom of the lifting drive screw is fixedly connected with a screw retraction groove, the inner side of the screw retraction groove is fixedly connected with a lifting drive motor, and one end of the lifting drive motor is movably connected with a motor control knob;

the portable case is restrainted in inside one side fixedly connected with dead lever receipts of training ware, the inboard embedding in dead lever receipts bundle groove is connected with cushion receipts and restraints the pole, the inboard through connection of cushion receipts bundle pole has the fixed cushion of bolt, the inboard through connection of cushion receipts bundle pole has the receipts and restraints the pole stop cock, the both sides swing joint that the portable case was restrainted in the training ware has training device to transport the activity wheel, one side embedding that training device transported the activity wheel is connected with activity wheel closure bayonet lock.

Preferably, the trainer is fixedly connected with an embedded mounting groove at the bottom of the front of the portable case.

Preferably, one end of the training device for bundling the portable box is fixedly connected with a containing hanging rod.

Preferably, the back of the portable case is fixedly connected with a movable push rod.

Preferably, one side of the periphery of the dorsal muscle high-tension spring mechanism is fixedly connected with a lifting control scale.

Preferably, an integrated annular viewing mirror is fixedly connected to the periphery of the training mechanism lifting device.

Preferably, the dorsal muscle high-tension spring mechanism is formed by combining a hollow inner embedded groove on the inner side of the back muscle, a high-tension stress tension spring on the inner side of the hollow inner embedded groove, a peripheral spring joint lantern ring, a stress welding rod in front of the spring joint lantern ring and a dorsal muscle training pulling handle in front of the stress welding rod.

Preferably, the training mechanism lifting device is formed by combining a lifting driving screw at the bottom end, a screw retraction groove at the bottom of the lifting driving screw, a lifting driving motor at the inner side of the screw retraction groove and a motor control knob at one end of the lifting driving motor.

Preferably, the portable case is bundled by the training device, and the portable case is formed by combining a fixed rod bundling groove on one side inside, a cushion bundling rod on the inner side of the fixed rod bundling groove, a bolt-fixed cushion on the inner side of the cushion bundling rod, a bundling rod limiting bolt on the inner side of the cushion bundling rod, a training device transfer movable wheel on two sides and a movable wheel locking bayonet lock on one side of the training device transfer movable wheel.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the training device, the back muscle high-tension spring mechanism is arranged, the hollow embedded groove is formed in the inner side of the mechanism, the high-tension stress extension spring is arranged on the inner side of the hollow embedded groove, the spring joint lantern ring is arranged on the periphery of the mechanism in an embedded mode, the spring joint lantern ring is fixed to the top end of the high-tension stress extension spring through a connecting piece, when back muscle training is conducted, the back muscle training device is backed, two hands tightly grip a back muscle training pulling handle and pull down, the back muscle training pulling handle pulls down, the spring joint lantern ring is driven by a stress welding rod to slide downwards along the back muscle high-tension spring mechanism, the resistance of the high-tension stress extension spring which is more downwards is larger, the pulling-down is continuously conducted, a good back muscle training effect can be achieved, and the operation convenience and the training efficiency of the training device are well;

2. according to the invention, by arranging the training mechanism lifting device, a trainer can control the lifting driving motor through the adjusting motor control knob, and the lifting driving motor drives the lifting driving screw to spirally and movably push the dorsal muscle high-tension spring mechanism to extend and contract along the screw retraction groove, so that the effect of lifting the height of the training structure is achieved, the training mechanism is well suitable for users with different heights, and the adjustability of the training device is well embodied;

3. according to the invention, by arranging the portable case for bundling the trainer, when the trainer needs to be transported, a user can loosen bolts of the bolt-fixed cushion to take the bolts off the cushion bundling rod, then draw out the bundling rod limiting bolt to enable the cushion bundling rod to be embedded into the fixed rod bundling groove, and place the detached cushion and other bolt parts into the embedded groove, so that the size of the device can be well reduced, then take out the movable wheel locking bayonet lock to enable the movable wheel for transporting the trainer to recover to the active state, and the device can be transported and driven by the movable wheel for transporting.

4. In the invention, the front bottom of the portable case for the training device to be collected is fixedly connected with the embedded groove, because a user needs to additionally place some personal articles such as water, mobile phone clothes and the like when using the training device for training, the existing training device does not have a good integrated storage design and is inconvenient for the user to take and store at any time, by arranging the embedded groove which is designed as an integrated storage box arranged at one side of the training device, the user can place the relevant personal articles into the embedded groove for temporary storage, the user can take the personal articles at any time very conveniently, one end of the portable case for the training device to be collected is fixedly connected with the collecting hanging rod, during the training process, the user often uses a towel for wiping sweat, the towel is easily placed into the embedded groove to cause peculiar smell, the existing training device does not have a good placing design, and by arranging the collecting hanging rod, the user can directly put the towel that uses during the training on accomodating the peg to fine embodiment this training ware put the convenience.

5. In the invention, the movable push rod is fixedly connected at the back of the portable case for bundling of the trainer, because the trainer is provided with a good movable transferring design, the existing trainer does not have a good stress structure and is inconvenient to drive the trainer during movable transferring, by arranging the movable push rod which is designed as a hand-power grasping rod integrated with the portable case for the contraction of the trainer, a user can push the trainer under stress through the movable push rod, thereby being convenient for the transfer of the trainer, one side of the periphery of the dorsal muscle high-tension spring mechanism is fixedly connected with a lifting control scale, because the trainer has good lifting adjustment design, when going up and down, need the concrete size of accurate control, through setting up the lift control scale, the lift control scale is for setting up at the peripheral integrative equidistance scale of this mechanism, fine having made things convenient for user to control specific dimension when adjusting.

Drawings

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

FIG. 2 is an enlarged schematic view of the invention at A;

FIG. 3 is a schematic cross-sectional view of the lifting device of the training mechanism of the present invention;

FIG. 4 is a cross-sectional view of the compact case of the exercise apparatus of the present invention;

fig. 5 is an enlarged view of the invention at B.

The labels in the figure are: 1. a trainer body; 2. a dorsal muscle high-tension spring mechanism; 3. a training mechanism lifting device; 4. the trainer bunches up the portable box; 5. embedding a mounting groove; 6. accommodating the hanging rod; 7. a movable push rod; 8. lifting control scales; 9. an integrated annular view mirror; 10. a hollow embedded groove; 11. a high tensile force tension spring; 12. a spring engaging collar; 13. a stress welding rod; 14. training a pulling handle by dorsal muscles; 15. lifting the driving screw; 16. the screw rod is retracted into the groove; 17. a lifting drive motor; 18. a motor control knob; 19. a fixed rod bundling groove; 20. a cushion tightening rod; 21. the cushion is fixed by bolts; 22. a restraint rod limit bolt; 23. the training device transports the movable wheels; 24. the movable wheel locks the bayonet lock.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a high-tension dorsal muscle trainer for physical education comprises a trainer main body 1, a dorsal muscle high-tension spring mechanism 2 and a training mechanism lifting device 3, wherein the bottom end of the trainer main body 1 is fixedly connected with the dorsal muscle high-tension spring mechanism 2, the bottom end of the dorsal muscle high-tension spring mechanism 2 is fixedly connected with the training mechanism lifting device 3, and the bottom end of the training mechanism lifting device 3 is fixedly connected with a trainer bundling portable box 4;

the inner side of the back muscle high-tension spring mechanism 2 is fixedly connected with a hollow inner embedded groove 10, the inner side of the hollow inner embedded groove 10 is fixedly connected with a high-tension stress extension spring 11, the periphery of the back muscle high-tension spring mechanism 2 is connected with a spring joint lantern ring 12 in an embedded mode, a stress welding rod 13 is tightly welded in front of the spring joint lantern ring 12, and a back muscle training pulling handle 14 is fixedly connected in front of the stress welding rod 13;

the bottom end of the dorsal muscle high-tension spring mechanism 2 is movably connected with a lifting drive screw 15, the bottom of the lifting drive screw 15 is fixedly connected with a screw retraction groove 16, the inner side of the screw retraction groove 16 is fixedly connected with a lifting drive motor 17, and one end of the lifting drive motor 17 is movably connected with a motor control knob 18;

the inner side of the portable case 4 is fixedly connected with a fixed rod bundling groove 19 through which the trainer is bundled, the inner side of the fixed rod bundling groove 19 is connected with a cushion bundling rod 20 in an embedded mode, the inner side of the cushion bundling rod 20 is connected with a bolt fixing cushion 21 in a penetrating mode, the inner side of the cushion bundling rod 20 is connected with a bundling rod limiting bolt 22 in a penetrating mode, the two sides of the portable case 4 are movably connected with a training device transfer movable wheel 23 through which the trainer is bundled, and one side of the training device transfer movable wheel 23 is connected with a movable wheel locking bayonet 24 in an embedded mode.

Preferably, the embedded grooving 5 of preceding bottom fixedly connected with of portable case 4 is restrainted to the training ware, because the user uses the training ware to train when, need with water, some personal articles such as cell-phone clothing are placed in addition, current training ware does not possess fine integrative dress and deposits the design, the user of being not convenient for takes and deposits at any time, through setting up embedded grooving 5, embedded grooving 5 is for setting up the design of putting the thing box in training ware one side, the user can be kept in relevant personal article are placed in embedded grooving 5, fine person of facilitating the use takes at any time.

Preferentially, the peg 6 is accomodate to the one end fixedly connected with that the portable box 4 was restrainted to the training ware, and in the training process, the user often used the towel to wipe sweat, and the towel is put into and is easily caused the peculiar smell in embedded mounting groove 5, and current training ware does not possess fine taking and puts the design, accomodates peg 6 through setting up, and the user can directly take the towel that uses when training and put on accomodating peg 6 to fine embodying taking of this training ware puts the convenience.

Preferably, the back fixedly connected with activity push rod 7 of portable case 4 is restrainted to the training ware, because this training ware is provided with fine activity and transports the design, current training ware does not possess fine atress structure, the not convenient for activity drives the training ware when transporting, through setting up activity push rod 7, activity push rod 7 is for the hand power of restraining portable case 4 an organic whole with the training ware and grabs the pole design, user's accessible activity push rod 7 carries out the atress promotion to the training ware, thereby fine the going on of having made things convenient for the training ware to transport.

Preferably, peripheral one side fixedly connected with lift control scale 8 of dorsal muscle height spring mechanism 2, because this training ware has fine lift adjustment design, when going up and down, need the concrete size of accurate control, through setting up lift control scale 8, lift control scale 8 is for setting up at the peripheral integrative equidistance scale of this mechanism, fine made things convenient for user's control specific dimension when adjusting.

Preferably, training mechanism elevating gear 3's peripheral fixedly connected with an integrated ring sight glass 9, current training ware does not possess the mirror design, and the user can't look over the training effect of oneself in real time, and is comparatively inconvenient, through setting up an integrated ring sight glass 9, an integrated ring sight glass 9 is for setting up at the design of training mechanism elevating gear 3 outlying cyclic annular mirror surface, can supply the user to observe self training situation and effect, the fine observation convenience that has embodied this training ware.

Preferably, the dorsal muscle high-tension spring mechanism 2 is formed by combining a hollow inner caulking groove 10 on the inner side of the inner part, a high-tension stress extension spring 11 on the inner side of the hollow inner caulking groove 10, a peripheral spring joint lantern ring 12, a stress welding rod 13 in front of the spring joint lantern ring 12 and a dorsal muscle training pulling handle 14 in front of the stress welding rod 13, the existing dorsal muscle training device needs a complex pulley block structure and is troublesome and not suitable for the use of dorsal muscle training teaching, the mechanism is provided with the dorsal muscle high-tension spring mechanism 2, the mechanism is provided with the hollow inner caulking groove 10 on the inner side, the high-tension stress extension spring 11 is arranged on the inner side of the hollow inner caulking groove 10, the spring joint lantern ring 12 is nested on the periphery of the mechanism, the spring joint lantern ring 12 is fixed with the top end of the high-tension stress extension spring 11 through a connecting piece, when the dorsal muscle training is carried out, the back-leaning equipment is used, the two hands, and meanwhile, the back muscle training pulling handle 14 drives the spring joint lantern ring 12 to slide downwards along the back muscle high-tension spring mechanism 2 through the stress welding rod 13, the resistance of the high-tension stress extension spring 11 which is more downwards is larger, the pulling is continuously carried out in a lifting and pulling way, a good back muscle training effect can be achieved, and the operation convenience and the training efficiency of the trainer are well embodied.

Preferably, the training mechanism lifting device 3 is formed by combining a lifting driving screw 15 at the bottom end, a screw retraction groove 16 at the bottom of the lifting driving screw 15, a lifting driving motor 17 at the inner side of the screw retraction groove 16 and a motor control knob 18 at one end of the lifting driving motor 17, most of the existing training devices are fixedly designed and cannot be adjusted according to trainees with different heights, and training of part of trainees with too high or too low heights is very inconvenient, by arranging the training mechanism lifting device 3, the trainees can control the lifting driving motor 17 by adjusting the motor control knob 18, the lifting driving motor 17 drives the lifting driving screw 15 to spirally move along the screw retraction groove 16 to push the dorsal muscle high-tension spring mechanism 2 to stretch out and retract, so that the effect of lifting the height of the training structure is achieved, and the training device is well suitable for users with different heights, the adjustability of the trainer is well embodied.

Preferably, the portable case 4 for training device bundling is formed by combining a fixed rod bundling groove 19 on one side inside, a cushion bundling rod 20 on the inner side of the fixed rod bundling groove 19, a bolt fixing cushion 21 on the inner side of the cushion bundling rod 20, a bundling rod limiting bolt 22 on the inner side of the cushion bundling rod 20, a training device transferring movable wheel 23 on two sides and a movable wheel locking bayonet 24 on one side of the training device transferring movable wheel 23, most of the existing training devices are large and heavy in size and do not have a good carrying and transferring design, the portable case 4 for physical education can not be well applicable to requirements of physical education activities, when in transportation, a user can loosen bolts on the bolt fixing cushion 21 to take off the bolts from the cushion bundling rod 20 and then take out the bundling rod limiting bolt 22, so that the cushion bundling rod 20 is embedded into the fixed rod bundling groove 19, and then the disassembled bolt parts such as the cushion are embedded into the embedding grooves, the volume of the device that reduces that can be fine takes out loose wheel locking bayonet lock 24 after that, makes training device transport loose wheel 23 and resumes the active state, alright transport the drive to the device through transporting loose wheel 23 to sum up, and this design is fine has made things convenient for the transportation of training ware to carry.

The working principle is as follows: firstly, by arranging the movable push rod 7, the movable push rod 7 is designed as a hand-power grasping rod integrated with the portable case 4 for bundling of the trainer, and a user can push the trainer under stress through the movable push rod 7, so that the transfer of the trainer is facilitated;

then, by arranging the lifting control scale 8, the lifting control scale 8 is an integral equidistant scale arranged on the periphery of the mechanism, and the user can control the specific size during adjustment well and conveniently;

then, by arranging a dorsal muscle high-tension spring mechanism 2, a hollow embedded groove 10 is arranged on the inner side of the mechanism, a high-tension stress extension spring 11 is arranged on the inner side of the hollow embedded groove 10, a spring joint lantern ring 12 is nested on the periphery of the mechanism, the spring joint lantern ring 12 is fixed with the top end of the high-tension stress extension spring 11 through a connecting piece, when dorsal muscle training is carried out, a user leans against the equipment, holds a dorsal muscle training pulling handle 14 tightly with both hands, and pulls down simultaneously, the dorsal muscle training pulling handle 14 drives the spring joint lantern ring 12 to slide downwards along the dorsal muscle high-tension spring mechanism 2 through a stress welding rod 13, the resistance of the high-tension stress extension spring 11 which is more downwards is larger, the lifting and pulling-down are carried out repeatedly, a good dorsal muscle training effect can be achieved, and the operation convenience and the training efficiency of the trainer are well embodied;

then, by arranging the training mechanism lifting device 3, a trainer can control the lifting driving motor 17 through the adjusting motor control knob 18, the lifting driving motor 17 drives the lifting driving screw 15 to spirally move along the screw retraction groove 16 to push the dorsal muscle high-tension spring mechanism 2 to extend and retract, so that the effect of lifting the height of the training structure is achieved, the training mechanism is well suitable for users with different heights, and the adjustability of the training device is well embodied;

finally, through setting up the training ware and restraint suitcase 4, when needing to be transported, the user can loosen bolt fastening cushion 21 and restraint the pole 20 from the cushion and take off, will restrain again and restraint pole stop cock 22 and take out, make cushion and restrain pole 20 embedding dead lever and restrain in the groove 19, bolt spare parts such as cushion that will pull down pack into embedded dress inslot, the volume of reducing the device that can be fine, take out loose wheel locking bayonet lock 24 after that, make the training device transport loose wheel 23 and resume active state, alright transport the drive to the device through transporting loose wheel 23, to sum up, this design is fine has made things convenient for the transportation of training ware to carry, this is exactly the theory of operation of this kind of high tension dorsal muscle training ware for sports teaching.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a high tension dorsal muscle training ware is used in sports teaching, includes training ware main part (1), dorsal muscle high tension spring mechanism (2) and training mechanism elevating gear (3), its characterized in that: the training device comprises a training device main body (1), a dorsal muscle high-tension spring mechanism (2) is fixedly connected to the bottom end of the training device main body (1), a training device lifting device (3) is fixedly connected to the bottom end of the dorsal muscle high-tension spring mechanism (2), and a training device bundling portable box (4) is fixedly connected to the bottom end of the training device lifting device (3);

the back muscle high-tension spring mechanism is characterized in that a hollow inner embedded groove (10) is fixedly connected to the inner side of the back muscle high-tension spring mechanism (2), a high-tension stress extension spring (11) is fixedly connected to the inner side of the hollow inner embedded groove (10), a spring joint lantern ring (12) is connected to the periphery of the back muscle high-tension spring mechanism (2) in an embedded mode, a stress welding rod (13) is tightly welded to the front of the spring joint lantern ring (12), and a back muscle training pulling handle (14) is fixedly connected to the front of the stress welding rod (13);

the back muscle high-tension spring mechanism is characterized in that the bottom end of the back muscle high-tension spring mechanism (2) is movably connected with a lifting drive screw (15), the bottom of the lifting drive screw (15) is fixedly connected with a screw retraction groove (16), the inner side of the screw retraction groove (16) is fixedly connected with a lifting drive motor (17), and one end of the lifting drive motor (17) is movably connected with a motor control knob (18);

groove (19) are restrainted to inside one side fixedly connected with dead lever that portable case (4) were restrainted to the training ware, the inboard embedding of dead lever restraint groove (19) is connected with cushion restraint pole (20), the inboard through connection that the cushion was restrainted pole (20) has bolt fastening cushion (21), the inboard through connection that the cushion was restrainted pole (20) is restrainted and is restrainted pole stop cock (22) are restrainted, the both sides swing joint that portable case (4) were restrainted to the training ware has training device to transport activity wheel (23), one side embedding that training device transported activity wheel (23) is connected with activity wheel closure bayonet lock (24).

2. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: the bottom of the front of the training device bundling portable box (4) is fixedly connected with an embedded groove (5).

3. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: one end of the training device bundling portable box (4) is fixedly connected with a containing hanging rod (6).

4. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: the back of the training device bundling portable box (4) is fixedly connected with a movable push rod (7).

5. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: and one side of the periphery of the dorsal muscle high-tension spring mechanism (2) is fixedly connected with a lifting control scale (8).

6. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: the periphery of the training mechanism lifting device (3) is fixedly connected with an integrated ring sight glass (9).

7. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: the dorsal muscle high-tension spring mechanism (2) is formed by combining a hollow inner embedded groove (10) on the inner side of the inside, a high-tension stress extension spring (11) on the inner side of the hollow inner embedded groove (10), a peripheral spring joint lantern ring (12), a stress welding rod (13) in front of the spring joint lantern ring (12) and a dorsal muscle training pull handle (14) in front of the stress welding rod (13).

8. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: the training mechanism lifting device (3) is formed by jointly combining a lifting driving screw (15) at the bottom end, a screw retraction groove (16) at the bottom of the lifting driving screw (15), a lifting driving motor (17) at the inner side of the screw retraction groove (16) and a motor control knob (18) at one end of the lifting driving motor (17).

9. The high-tension dorsal muscle trainer for physical education as claimed in claim 1, wherein: the portable case (4) is tied up by the dead lever of inside one side and is tied up groove (19), and pole (20) are tied up to the cushion that the dead lever was tied up groove (19) inboard, and the inboard bolt fastening cushion (21) of pole (20) are tied up to the cushion, and the inboard pole stop cock (22) of tying up of pole (20) are tied up to the cushion, and the trainer of both sides transports activity wheel (23) and trainer transports activity wheel locking bayonet lock (24) of activity wheel (23) one side and makes up jointly.