CN113750446A

CN113750446A - Muscle trainer is used in sports training

Info

Publication number: CN113750446A
Application number: CN202111152768.7A
Authority: CN
Inventors: 薛曹叶
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2021-12-07
Anticipated expiration: 2041-09-29
Also published as: CN113750446B

Abstract

The invention belongs to the technical field of physical training, and particularly relates to a muscle training device for physical training, which comprises a barbell bar, wherein a barbell disc is movably connected to the end part of the barbell bar on one side of a baffle; the barbell disc is connected with a barbell rod in a sliding manner, an airflow channel is arranged inside the barbell rod, airflow grooves are symmetrically formed in the side wall of the barbell rod, an elastic pressure film is connected to the outer end of each airflow groove, a group of limiting grooves communicated with the airflow channels are formed in the end part of the barbell rod, a limiting assembly is arranged at each limiting groove, and the pressure film can drive the limiting assembly to limit the sliding of the barbell disc when being extruded; according to the invention, the limiting assembly is arranged at the end part of the barbell rod, so that when a trainer holds the barbell rod at the pressure membrane for training, a barbell disc slidably arranged at the end part of the barbell rod can be limited, and when the barbell disc is not used, the barbell disc can be easily and quickly detached from the barbell rod, and the practicability of the barbell is improved.

Description

Muscle trainer is used in sports training

Technical Field

The invention belongs to the technical field of physical training, and particularly relates to a muscle training device for physical training.

Background

During sports, a plurality of people need to carry out arm muscle training, and at the moment, a training device is needed, the physical education is an indispensable part in school education, a teacher and students participate together, the purpose and the organized education process is carried out according to a certain plan and course standards, and the barbell is a commonly used muscle training device for physical training.

However, when the barbell in the prior art is used, due to the different training strengths of different people, the barbell pieces at the two ends of the barbell bar are often required to be adjusted in weight, and the barbell pieces are often screwed and installed or detached from the end of the barbell bar in the existing adjusting mode, so that the barbell is not convenient to use.

Accordingly, the present invention provides a muscle training device for physical training.

Disclosure of Invention

To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.

The technical scheme adopted by the invention for solving the technical problems is as follows: the muscle training device for physical training comprises a barbell rod, wherein two ends of the barbell rod are fixedly connected with baffle plates, and the end part of the barbell rod on one side of each baffle plate is movably connected with a barbell disc; the barbell disc is connected with a barbell rod in a sliding manner, an airflow channel is arranged in the barbell rod along the axial direction of the barbell rod, airflow grooves communicated with the airflow channel are symmetrically formed in the side wall of the barbell rod, an elastic pressure film is connected to the side wall of the barbell rod at the outer end of each airflow groove, an elastic body is connected between each pressure film and the side wall of the barbell rod, a group of limiting grooves communicated with the airflow channels are formed in the side wall of the end part of the barbell rod, a limiting assembly is arranged at each limiting groove, and the pressure films can drive the limiting assemblies to limit the sliding of the barbell disc when being extruded; when the barbell in the prior art is used, due to different training strengths of different people, the weight of the barbell pieces at two ends of the barbell bar is often required to be adjusted, and the barbell pieces are often screwed and installed or detached from the end part of the barbell bar in the existing adjusting mode, so that the barbell is not convenient to use; when the barbell bar is provided with the barbell disc, the barbell disc is only required to be sleeved at the end part of the barbell bar in a sliding manner, when a trainer holds the pressure membrane with two hands to lift up the barbell bar, the pressure of the hands on the pressure membrane enables the pressure membrane to drive the gas inside to flow into the limiting groove through the airflow groove and the airflow channel and drive the limiting assembly in the limiting groove to work, the limiting assembly can be an elastic membrane structure arranged at the outer end of the limiting groove, the membrane structure expands and protrudes to the outside of the barbell bar under the action of the air pressure in the limiting groove, so that the barbell disc slidably arranged at the end part of the barbell bar can be fixed, when the barbell is not used any more, the pressure membrane resets under the action of the elastic body, and the limiting assembly does not limit the barbell disc any more, so that the barbell disc can be easily and quickly detached from the barbell bar, the practicability of the barbell is improved.

Preferably, the limiting assembly comprises a limiting block connected with a limiting groove in a sliding manner, the side wall of the limiting block is attached to the side wall of the limiting groove, the inner end of the limiting groove is connected with a supporting net, and a spring is connected between the limiting block and the supporting net; when the pressure membrane is pressed and the gas in the pressure membrane flows into the limiting groove, the limiting block can slide outwards under the action of the air pressure in the limiting groove, so that the limiting block can protrude to the outer end of the side wall of the barbell rod, and a more stable limiting effect can be achieved on the barbell disc sleeved at the end part of the barbell rod.

Preferably, the side wall of the inner ring of the barbell disc is provided with an annular clamping groove matched with the limiting block, and the outer end of the limiting block is symmetrically provided with inclined guide surfaces; because the barbell disc is installed on the barbell rod, there is certain clearance between stopper and the outermost barbell disc, make the barbell disc take place to rock on the barbell rod easily, this moment through set up the draw-in groove with stopper matched with on the barbell disc, after the pressure membrane received hand pressure, the stopper that is cladded by the barbell disc can insert the draw-in groove under the effect of limiting groove inside atmospheric pressure this moment, reduce the random rocking of barbell disc on the barbell rod, simultaneously through setting up the spigot surface in the stopper outer end, make the stopper even change at the elastic coefficient of spring, or when the barbell rod rocks and leads to its protrusion to the barbell rod outer end, the barbell disc of treating the installation also can be pressed the stopper into the limiting groove through the form of extrusion spigot surface, thereby make the installation of barbell disc can stabilize effectual going on.

Preferably, an arc-shaped magnetic block is embedded in the clamping groove and can attract the limiting block; when stopper and draw-in groove block mutually, the inside magnetic block of draw-in groove can be fixed to the stable attraction of stopper this moment, when training personnel no longer hold the extrusion to the pressure film during the rest, the stopper still can with draw-in groove looks block under the attraction of magnetic block this moment, thereby make fixing on the barbell bar that the barbell piece can be stable, when needs are changed the barbell piece, through the relative rotation barbell piece this moment, make the magnetic block on the barbell piece misplace with the stopper mutually, thereby make the effectual reseing of stopper and no longer with draw-in groove looks block, make things convenient for training personnel to dismantle the barbell piece.

Preferably, the airflow grooves and the pressure membranes are arranged into at least three groups along the axial direction of the barbell bar, the barbell bar corresponding to the outside of the pressure membranes is rotatably connected with an annular sleeve, a grabbing opening is formed in the annular sleeve, and the annular sleeve is in interference extrusion with the pressure membranes when rotating; when the barbell needs to be used, according to different training demands, rotate the annular cover of different positions department, make the mouth of snatching on the annular cover align with the pressure membrane, thereby make training personnel can be through the pressure membrane of handheld different positions, carry out the muscle training of different intensity, after the barbell finishes using, through rotating the annular cover, make the mouth of snatching of annular cover misplace with the pressure membrane mutually, thereby can shelter from the protection to each pressure membrane, reduce the pressure membrane on the barbell because of exposing under the environment easy impaired condition for a long time, the annular cover lateral wall can extrude the pressure membrane simultaneously, and impress its inside gas in the spacing groove, make the stopper in the spacing groove can be more stable carry on spacingly to the barbell piece.

Preferably, a group of uniformly distributed convex particles are arranged on the side wall of the outer ring of the annular sleeve; the protruding grain that sets up on the annular cover makes things convenient for training personnel to rotate the annular cover, also makes beginner's training personnel be difficult to lift up the barbell through the form of handheld annular cover simultaneously to make training personnel can more standard use barbell.

Preferably, the end parts of two adjacent annular sleeves are connected through a connecting rod, and the grabbing ports on the annular sleeve on one side of the middle part of the barbell bar are arranged in a staggered manner; through connecting rod ring sleeve interconnect for training personnel can drive all the other ring sleeve simultaneous movement through rotating one of them ring sleeve, makes the use of ring sleeve more swift, snatchs mouthful dislocation arrangement simultaneously through setting up, makes when one of them pair of snatchs mouthful aligns with the pressure membrane, and other pressure membrane all is covered by the ring sleeve, thereby makes the pressure membrane under the unused state can effectually protect.

Preferably, the outer wall of the pressure membrane is connected with a water absorbing layer, and anti-slip powder is arranged inside the water absorbing layer; the layer that absorbs water on the pressure membrane can be made through sponge material, can absorb the sweat of training personnel hand, and the relative slip between hand and the barbell pole can further be reduced to the antiskid of its inside packing simultaneously, has improved the security and the stability of barbell when using.

Preferably, a material storage box is connected to the outer wall of the annular sleeve on one side of the grabbing port, a discharge chute is formed in the side wall of the annular sleeve corresponding to the inner end of the material storage box, a cylindrical roller is rotatably connected to the outer end of the discharge chute, and conveying troughs which are uniformly distributed in an annular mode are formed in the side wall of the roller; the annular cover can drive the roller when rotating and roll on the pressure membrane surface, and the conveyer trough on the roller can be with preserving in advance at the inside non-slip powder of storage case this moment, and continuous transport is to the surface of absorbing water layer to can supply the non-slip powder on absorbing water layer surface, improve barbell's practicality.

Preferably, the barbell bar side walls corresponding to the two ends of the pressure membrane are fixedly connected with supporting plates respectively, pull rods are connected to the supporting plates in a sliding mode, the pull rods are connected with the end parts of the water absorbing layers on one side through elastic blocks, one ends, far away from the water absorbing layers, of the pull rods are connected with absorbing blocks, a group of uniformly distributed magnetic bodies are embedded and installed on the inner wall of the annular sleeve, and the magnetic bodies can absorb the absorbing blocks; when the roller is rolling on the layer surface that absorbs water, annular cover can drive the magnetic substance this moment and be close to the one end of attracting the piece gradually, attract it to it until the magnetic block, attract the piece this moment and can stretch to water absorption layer tip through pull rod and elastic block, make the hole grow on the layer that absorbs water, thereby make the non slipping powder can effectual infiltration absorb water in the layer, and when the magnetic block changes from attracting the piece, attract the piece this moment and pull rod and make the return motion under the effect of elastic block, thereby make the non slipping powder on water absorption layer surface permeate its inside and preserve more easily, the result of use on follow-up layer that absorbs water has been improved.

The invention has the following beneficial effects:

1. according to the invention, the limiting component is arranged at the end part of the barbell rod, so that when a trainer holds the barbell rod at the pressure membrane for training, the barbell disc slidably arranged at the end part of the barbell rod can be limited, when the barbell is not used, the pressure membrane is reset under the action of the elastic body, and the limiting component does not limit the barbell disc any more, so that the barbell disc can be easily and quickly detached from the barbell rod, and the practicability of the barbell is improved.

2. According to the barbell, after the barbell is used, the annular sleeve is rotated, so that the grabbing opening of the annular sleeve and the pressure membranes are staggered, the pressure membranes can be shielded and protected, the situation that the pressure membranes on the barbell are easily damaged due to long-time exposure to the environment is reduced, meanwhile, the side walls of the annular sleeve can extrude the pressure membranes, gas in the pressure membranes is pressed into the limiting grooves, and the limiting blocks in the limiting grooves can limit the barbell plates more stably.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

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

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of the second embodiment of the present invention showing the radial arrangement of the annular sleeve and the barbell bar;

FIG. 5 is an enlarged view at B in FIG. 4;

in the figure: barbell bar 1, baffle 2, barbell disc 3, airflow channel 4, airflow groove 5, pressure film 6, elastic body 7, limiting groove 8, limiting block 9, support net 10, clamping groove 11, guide surface 12, magnetic block 13, annular sleeve 14, grabbing port 15, convex particle 16, connecting rod 17, water absorption layer 18, storage box 19, discharge chute 20, roller 21, conveying groove 22, support plate 23, pull rod 24, elastic block 25, attraction block 26 and magnetic body 27.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.

The first embodiment is as follows:

referring to fig. 1-3, a muscle training device for physical training according to an embodiment of the present invention includes a barbell bar 1, wherein two ends of the barbell bar 1 are fixedly connected with baffles 2, and a barbell disc 3 is movably connected to an end of the barbell bar 1 on one side of the baffles 2; the barbell disc 3 is connected with the barbell bar 1 in a sliding manner, an airflow channel 4 is arranged in the barbell bar 1 along the axial direction of the barbell bar 1, airflow grooves 5 communicated with the airflow channel 4 are symmetrically formed in the side wall of the barbell bar 1 at the outer end of each airflow groove 5, an elastic pressure film 6 is connected to the side wall of the barbell bar 1 at the outer end of each airflow groove 5, an elastic body 7 is connected between each pressure film 6 and the side wall of the barbell bar 1, a group of limiting grooves 8 communicated with the airflow channels 4 are formed in the side wall of the end part of the barbell bar 1, a limiting assembly is arranged at each limiting groove 8, and the pressure films 6 can drive the limiting assemblies to limit the sliding of the barbell disc 3 when being extruded; when the barbell in the prior art is used, due to different training strengths of different people, the weight of the barbell pieces 3 at two ends of the barbell bar 1 is often required to be adjusted, and the barbell pieces 3 are often screwed and installed or detached from the end part of the barbell bar 1 in the existing adjusting mode, so that the barbell is not convenient to use; when the barbell bar 1 is provided with the barbell disc 3, the barbell disc 3 is only required to be sleeved at the end part of the barbell bar 1 in a sliding manner, when a trainer holds the pressure membrane 6 with two hands to lift up the training, the pressure of the hands on the pressure membrane 6 enables the air inside the pressure membrane 6 to be driven by pressure to flow into the limiting groove 8 through the airflow groove 5 and the airflow channel 4 and drive the limiting component in the limiting groove 8 to work, the limiting component can be an elastic membrane structure arranged at the outer end of the limiting groove 8, at the moment, the membrane structure expands and protrudes to the outside of the barbell bar 1 under the action of the air pressure inside the limiting groove 8, so that the barbell disc 3 slidably arranged at the end part of the barbell bar 1 can be fixed, when the barbell is not used any more, the pressure membrane 6 resets under the action of the elastic body 7, the limiting component does not limit the barbell disc 3 any more, and the barbell disc 3 can be easily and quickly disassembled from the barbell bar 1, the practicability of the barbell is improved.

The limiting assembly comprises a limiting block 9 connected with a limiting groove 8 in a sliding mode, the side wall of the limiting block 9 is attached to the side wall of the limiting groove 8, a supporting net 10 is connected to the inner end of the limiting groove 8, and a spring is connected between the limiting block 9 and the supporting net 10; when the pressure membrane 6 is pressed and the gas in the pressure membrane flows into the limiting groove 8, the limiting block 9 can slide outwards under the action of the air pressure in the limiting groove 8, so that the limiting block can protrude to the outer end of the side wall of the barbell rod 1, and a more stable limiting effect can be achieved on the barbell disc 3 sleeved at the end part of the barbell rod 1.

The side wall of the inner ring of the barbell disc 3 is provided with a ring-shaped clamping groove 11 matched with the limiting block 9, and the outer end of the limiting block 9 is symmetrically provided with inclined guide surfaces 12; because a certain gap is formed between the limiting block 9 and the barbell disc 3 at the outermost end after the barbell disc 3 is arranged on the barbell bar 1, so that the barbell disc 3 is easy to shake on the barbell bar 1, at the moment, the barbell disc 3 is provided with the clamping groove 11 matched with the limiting block 9, when the pressure membrane 6 is pressed by hand, the limiting block 9 covered by the barbell disc 3 can be inserted into the slot 11 under the action of air pressure in the limiting groove 8, so as to reduce the random shaking of the barbell disc 3 on the barbell bar 1, meanwhile, the guide surface 12 is arranged at the outer end of the limiting block 9, so that even if the elastic coefficient of the spring changes, or when barbell bar 1 is rocked to cause the barbell bar to protrude to the outer end of barbell bar 1, barbell disc 3 to be installed can also press limiting block 9 into limiting groove 8 through the form of extruding guide surface 12, so that barbell disc 3 can be installed stably and effectively.

An arc-shaped magnetic block 13 is embedded in the clamping groove 11, and the magnetic block 13 can attract the limiting block 9; when stopper 9 and draw-in groove 11 block mutually, the inside magnetic block 13 of draw-in groove 11 can be fixed to the stable attraction of stopper 9 this moment, when training personnel no longer hold the extrusion to pressure membrane 6 during the rest, stopper 9 still can with draw-in groove 11 block under the attraction of magnetic block 13 this moment, thereby make fixing on barbell rod 1 that barbell disc 3 can be stable, when needs change barbell disc 3, through relatively rotating barbell disc 3 this moment, make the magnetic block 13 on the barbell disc 3 misplace with stopper 9 mutually, thereby make the effectual restoration of stopper 9 and no longer with draw-in groove 11 block mutually, make things convenient for training personnel to dismantle barbell disc 3.

The airflow grooves 5 and the pressure membranes 6 are arranged into at least three groups along the axial direction of the barbell bar 1, the barbell bar 1 corresponding to the outside of the pressure membranes 6 is rotatably connected with an annular sleeve 14, the annular sleeve 14 is provided with a grabbing opening 15, and the annular sleeve 14 is in interference extrusion with the pressure membranes 6 when rotating; when the barbell needs to be used, according to different training demands, rotate the annular cover 14 of different positions department, make the mouth 15 of snatching on the annular cover 14 align with pressure membrane 6, thereby make training personnel can be through the pressure membrane 6 of handheld different positions, carry out the muscle training of different intensity, after the barbell finishes using, through rotating annular cover 14, make the mouth 15 of snatching of annular cover 14 misplace with pressure membrane 6, thereby can shelter from the protection to each pressure membrane 6, reduce the easy impaired condition of pressure membrane 6 on the barbell because of exposing under the environment for a long time, annular cover 14 lateral wall can extrude pressure membrane 6 simultaneously, and impress its inside gas in spacing groove 8, make stopper 9 in spacing groove 8 can be more stable carry on spacingly barbell piece 3.

A group of convex particles 16 which are uniformly distributed are arranged on the outer ring side wall of the annular sleeve 14; the protruding grain 16 that sets up on the ring cover 14 makes things convenient for training person to rotate ring cover 14, also makes beginner's training person difficult to lift up the barbell through the form of handheld ring cover 14 simultaneously to make training person's use barbell that can be more standard.

The end parts of two adjacent annular sleeves 14 are connected through a connecting rod 17, and the grabbing openings 15 on the annular sleeves 14 on one side of the middle part of the barbell bar 1 are arranged in a staggered manner; through connecting rod 17 with annular cover 14 interconnect for training personnel can drive remaining annular cover 14 simultaneous movement through rotating one of them annular cover 14, makes the use of annular cover 14 more swift, snatchs mouthful 15 dislocation arrangement through setting up simultaneously, makes when one of them pair of mouth 15 of snatching aligns with pressure membrane 6, and other pressure membrane 6 all is covered by annular cover 14, thereby makes pressure membrane 6 under the unused state can effectually protect.

Example two:

as shown in fig. 4 to 5, a first comparative example, in which another embodiment of the present invention is: the outer wall of the pressure membrane 6 is connected with a water absorption layer 18, and anti-slip powder is arranged inside the water absorption layer 18; the layer 18 that absorbs water on the pressure membrane 6 can be made through sponge material, can absorb the sweat of training personnel hand, and the relative slip between hand and barbell bar 1 can further be reduced to the antiskid of its inside packing simultaneously, has improved the security and the stability of barbell when using.

A material storage box 19 is connected to the outer wall of the annular sleeve 14 on one side of the grabbing port 15, a discharge chute 20 is formed in the side wall of the annular sleeve 14 corresponding to the inner end of the material storage box 19, a cylindrical roller 21 is rotatably connected to the outer end of the discharge chute 20, and conveying troughs 22 which are uniformly distributed in an annular shape are formed in the side wall of the roller 21; the annular sleeve 14 can drive the roller 21 to roll on the surface of the pressure membrane 6 when rotating, and the conveying chute 22 on the roller 21 can continuously convey the anti-slip powder preserved in the storage box 19 to the surface of the water absorption layer 18, so that the anti-slip powder on the surface of the water absorption layer 18 can be supplemented, and the practicability of the barbell is improved.

The barbell bar 1 side walls corresponding to the two ends of the pressure membrane 6 are fixedly connected with supporting plates 23 respectively, pull rods 24 are connected to the supporting plates 23 in a sliding mode, the pull rods 24 are connected with the end portions of the water absorbing layers 18 on one sides through elastic blocks 25, one ends, far away from the water absorbing layers 18, of the pull rods 24 are connected with absorbing blocks 26, a group of uniformly distributed magnetic bodies 27 are embedded and installed on the inner wall of the annular sleeve 14, and the magnetic bodies 27 can absorb the absorbing blocks 26; when the roller 21 rolls on the surface of the water absorption layer 18, the annular sleeve 14 can drive the magnetic body 27 to gradually approach one end of the absorption block 26 until the magnetic block 13 attracts the magnetic block, at this time, the absorption block 26 can stretch the end part of the water absorption layer 18 through the pull rod 24 and the elastic block 25, so that the pore of the water absorption layer 18 is enlarged, the anti-slip powder can effectively permeate into the water absorption layer 18, and when the magnetic block 13 rotates away from the absorption block 26, the absorption block 26 and the pull rod 24 move back and forth under the action of the elastic block 25, so that the anti-slip powder on the surface of the water absorption layer 18 can more easily permeate into the interior of the water absorption layer and be stored, and the use effect of the subsequent water absorption layer 18 is improved.

The working principle is as follows: when the barbell bar 1 is provided with the barbell disc 3, the barbell disc 3 is only required to be sleeved at the end part of the barbell bar 1 in a sliding manner, when a trainer holds the pressure membrane 6 with two hands to lift up the training, due to the pressure of the hands on the pressure membrane 6, the air inside the pressure membrane 6 is driven to flow into the limiting groove 8 through the airflow groove 5 and the airflow channel 4, and drives the limiting component in the limiting groove 8 to work, the limiting component can be an elastic membrane structure arranged at the outer end of the limiting groove 8, at the moment, the membrane structure expands under the action of the air pressure inside the limiting groove 8 and protrudes out of the barbell bar 1, so that the barbell disc 3 slidably arranged at the end part of the barbell bar 1 can be fixed, when the barbell is not used any more, the pressure membrane 6 resets under the action of the elastic body 7, and the limiting component does not limit the barbell disc 3 any more, thereby the barbell disc 3 can be easily and quickly detached from the barbell bar 1, the practicability of the barbell is improved; when the pressure membrane 6 is pressed and the gas in the pressure membrane flows into the limiting groove 8, the limiting block 9 can slide outwards under the action of the air pressure in the limiting groove 8, so that the limiting block can protrude to the outer end of the side wall of the barbell rod 1 and can play a more stable limiting effect on the barbell disc 3 sleeved at the end part of the barbell rod 1; because a certain gap is formed between the limiting block 9 and the barbell disc 3 at the outermost end after the barbell disc 3 is arranged on the barbell bar 1, so that the barbell disc 3 is easy to shake on the barbell bar 1, at the moment, the barbell disc 3 is provided with the clamping groove 11 matched with the limiting block 9, when the pressure membrane 6 is pressed by hand, the limiting block 9 covered by the barbell disc 3 can be inserted into the slot 11 under the action of air pressure in the limiting groove 8, so as to reduce the random shaking of the barbell disc 3 on the barbell bar 1, meanwhile, the guide surface 12 is arranged at the outer end of the limiting block 9, so that even if the elastic coefficient of the spring changes, or when the barbell bar 1 shakes to cause the barbell bar to protrude to the outer end of the barbell bar 1, the barbell disc 3 to be installed can also press the limiting block 9 into the limiting groove 8 in a mode of extruding the guide surface 12, so that the installation of the barbell disc 3 can be stably and effectively carried out; when the limiting block 9 is clamped with the clamping groove 11, the magnetic block 13 in the clamping groove 11 can stably attract and fix the limiting block 9, when the trainer does not grip and extrude the pressure membrane 6 any more during rest, the limiting block 9 can still be clamped with the clamping groove 11 under the attraction of the magnetic block 13, so that the barbell disc 3 can be stably fixed on the barbell bar 1, when the barbell disc 3 needs to be replaced, the magnetic block 13 on the barbell disc 3 is staggered with the limiting block 9 by relatively rotating the barbell disc 3, so that the limiting block 9 is effectively reset and is not clamped with the clamping groove 11 any more, and the barbell disc 3 is convenient to be detached by the trainer; when the barbell needs to be used, the annular sleeves 14 at different positions are rotated according to different training requirements, so that the grabbing ports 15 on the annular sleeves 14 are aligned with the pressure membranes 6, and therefore training personnel can carry out muscle training with different strengths by holding the pressure membranes 6 at different positions, after the barbell is used, the grabbing ports 15 of the annular sleeves 14 are staggered with the pressure membranes 6 by rotating the annular sleeves 14, so that shielding protection can be carried out on each pressure membrane 6, the condition that the pressure membranes 6 on the barbell are easily damaged due to long-time exposure to the environment is reduced, meanwhile, the side walls of the annular sleeves 14 can extrude the pressure membranes 6 and press gas in the pressure membranes into the limiting grooves 8, and the limiting blocks 9 in the limiting grooves 8 can more stably limit the barbell plates 3; the convex grains 16 arranged on the annular sleeve 14 facilitate the trainers to rotate the annular sleeve 14, and simultaneously, the beginners are difficult to lift the barbell in a mode of holding the annular sleeve 14 by hands, so that the trainers can use the barbell more normally; the annular sleeves 14 are connected with each other through the connecting rod 17, so that trainees can drive the rest annular sleeves 14 to move synchronously by rotating one annular sleeve 14, the annular sleeves 14 can be used more quickly, and meanwhile, the grabbing ports 15 are arranged in a staggered mode, so that when one pair of grabbing ports 15 are aligned with the pressure membranes 6, the other pressure membranes 6 are all covered by the annular sleeves 14, and the pressure membranes 6 in the unused state can be effectively protected; the water absorption layer 18 on the pressure membrane 6 can be made of sponge materials, sweat on the hands of the trainee can be absorbed, and meanwhile, the anti-slip powder filled in the pressure membrane can further reduce the relative slip between the hands and the barbell bar 1, so that the safety and the stability of the barbell in use are improved; the annular sleeve 14 can drive the roller 21 to roll on the surface of the pressure membrane 6 when rotating, and at the moment, the conveying groove 22 on the roller 21 can continuously convey the anti-skid powder preserved in the storage box 19 to the surface of the water absorption layer 18, so that the anti-skid powder on the surface of the water absorption layer 18 can be supplemented, and the practicability of the barbell is improved; when the roller 21 rolls on the surface of the water absorption layer 18, the annular sleeve 14 can drive the magnetic body 27 to gradually approach one end of the absorption block 26 until the magnetic block 13 attracts the magnetic block, at this time, the absorption block 26 can stretch the end part of the water absorption layer 18 through the pull rod 24 and the elastic block 25, so that the pore of the water absorption layer 18 is enlarged, the anti-slip powder can effectively permeate into the water absorption layer 18, and when the magnetic block 13 rotates away from the absorption block 26, the absorption block 26 and the pull rod 24 move back and forth under the action of the elastic block 25, so that the anti-slip powder on the surface of the water absorption layer 18 can more easily permeate into the interior of the water absorption layer and be stored, and the use effect of the subsequent water absorption layer 18 is improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A muscle training device for physical training comprises a barbell rod (1), wherein two ends of the barbell rod (1) are fixedly connected with baffle plates (2), and barbell discs (3) are movably connected to the end part of the barbell rod (1) on one side of each baffle plate (2); the method is characterized in that: barbell piece (3) and barbell rod (1) slide and link to each other, barbell rod (1) is inside to be provided with airflow channel (4) along its axial, airflow channel (5) that are linked together with airflow channel (4) are seted up to the symmetry on barbell rod (1) lateral wall, be connected with elastic pressure membrane (6) on barbell rod (1) lateral wall of airflow channel (5) outer end, be connected with elastomer (7) between pressure membrane (6) and barbell rod (1) lateral wall, set up a set of spacing groove (8) that are linked together with airflow channel (4) on the lateral wall of barbell rod (1) tip, spacing groove (8) department is equipped with spacing subassembly, pressure membrane (6) can drive spacing subassembly when being extrudeed and carry on spacingly to the slip of barbell piece (3).

2. A muscle training device for physical training according to claim 1, wherein: the limiting assembly comprises a limiting block (9) connected with a limiting groove (8) in a sliding mode, the side wall of the limiting block (9) is attached to the side wall of the limiting groove (8), the inner end of the limiting groove (8) is connected with a supporting net (10), and a spring is connected between the limiting block (9) and the supporting net (10).

3. A muscle training device for physical training according to claim 2, wherein: the barbell disc is characterized in that the side wall of the inner ring of the barbell disc (3) is provided with a clamping groove (11) which is in an annular shape and matched with the limiting block (9), and the outer end of the limiting block (9) is symmetrically provided with inclined guide surfaces (12).

4. A muscle training device for physical training according to claim 3, wherein: the inside magnetism piece (13) of installing the arc form of inlaying of draw-in groove (11), magnetism piece (13) can attract mutually with stopper (9).

5. A muscle training device for physical training according to claim 3, wherein: the barbell bar is characterized in that the airflow grooves (5) and the pressure membranes (6) are arranged into at least three groups along the axial direction of the barbell bar (1), the barbell bar (1) corresponding to the outside of the pressure membranes (6) is connected with an annular sleeve (14) in a rotating mode, grabbing openings (15) are formed in the annular sleeve (14), and the annular sleeve (14) is extruded with the pressure membranes (6) in an interference mode when rotating.

6. A muscle training device for physical training according to claim 5, wherein: the outer ring side wall of the annular sleeve (14) is provided with a group of convex particles (16) which are uniformly distributed.

7. A muscle training device for physical training according to claim 5, wherein: the end parts of two adjacent annular sleeves (14) are connected through a connecting rod (17), and grabbing openings (15) on the annular sleeves (14) on one side of the middle part of the barbell bar (1) are arranged in a staggered mode.

8. A muscle training device for physical training according to claim 7, wherein: the outer wall of the pressure membrane (6) is connected with a water absorbing layer (18), and anti-slip powder is arranged inside the water absorbing layer (18).

9. A muscle training device for physical training according to claim 8, wherein: the grabbing device is characterized in that a storage box (19) is connected to the outer wall of the annular sleeve (14) on one side of the grabbing opening (15), a discharge chute (20) is formed in the side wall of the annular sleeve (14) corresponding to the inner end of the storage box (19), the outer end of the discharge chute (20) is rotatably connected with a cylindrical roller (21), and conveying troughs (22) which are uniformly distributed in an annular mode are formed in the side wall of the roller (21).

10. A muscle training device for physical training according to claim 9, wherein: the barbell bar (1) lateral wall that pressure membrane (6) both ends correspond has linked firmly backup pad (23) respectively, sliding connection has pull rod (24) on backup pad (23), link to each other through elastic block (25) between layer (18) tip that absorbs water of pull rod (24) and one side, the one end of layer (18) that absorbs water is kept away from in pull rod (24) is connected with and absorbs piece (26), inlay on annular cover (14) inner wall and install a set of evenly distributed's magnetic substance (27), magnetic substance (27) can attract absorption piece (26).