CN114053667A

CN114053667A - Sports machine

Info

Publication number: CN114053667A
Application number: CN202111287108.XA
Authority: CN
Inventors: 郑先常; 孔冲; 高嵩; 高萌; 王立民; 武超
Original assignee: Henan Fiscal And Finance College
Current assignee: Henan Fiscal And Finance College
Priority date: 2021-03-26
Filing date: 2021-11-02
Publication date: 2022-02-18

Abstract

The invention discloses a sports machine which comprises a supporting seat, wherein a left moving part and a right moving part are symmetrically arranged on the upper end surface of the supporting seat along the length direction of the supporting seat, the left moving part comprises a first left arm supporting mechanism and a second left arm supporting mechanism which are arranged at intervals front and back, a guide groove I and a guide groove II are formed in the upper part of the supporting seat along the length direction of the supporting seat, a sliding block in the first left arm supporting mechanism is arranged in the guide groove I in a sliding mode, a first grab handle is arranged on the upper part of the sliding block in a rotating mode, a second grab handle in the second left arm supporting mechanism is arranged in the guide groove II in a sliding mode, and a telescopic assembly is arranged at the end part of the guide groove II to limit the second grab handle. The length of the elastic component extending into the guide groove II is adjusted through the outer nut in the knob telescopic component, and the double-section spring type elastic component is arranged at the end part of the sliding plate in the telescopic component, so that the strength is slowly increased in the moving process when two hands hold the second grab handles at two sides, and a certain shock absorption effect and an arm protection effect are achieved.

Description

Sports machine

Technical Field

The invention relates to fitness equipment, in particular to a sports machine.

Background

The sports are various activities developed gradually in the development process of human beings and cultivating the physical quality of the human beings consciously, and the forms of the sports also include a plurality of forms, wherein some sports such as running, sit-up, push-up and the like are exercises which most people can insist on every day, but the final purpose is to strengthen the body and relieve the body and mind.

The push-up is taken as a sports, and the sports of push-up seems to be particularly important in many subjects and games with push-up developed in schools, and the push-up mainly exercises muscles of upper limbs, waist and abdomen, especially pectoral muscles, keeps doing push-up exercise for a long time in a correct push-up posture, and can play a certain role in preventing aging and reducing the probability of heart disease occurrence.

The push-up has various ways, including general push-up, narrow-distance push-up, wide-distance push-up, left-right movement push-up and the like, and under the condition of not damaging the body, different push-up ways are selected, and sometimes different exercise effects can be achieved only by properly adjusting the angle between the two arms. Certainly, a push-up device which is suitable for a field, convenient to carry and has multiple functions is selected, so that people can insist on doing push-up exercise after busy work and life.

The conventional push-up device is mostly suitable for general push-up movement, has single function, is too rigid to exercise, and is not suitable for exercising muscle groups of the chest and the arms. Therefore, there is a need for a sports machine suitable for push-up exercises that solves the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problem, the invention provides a sports machine, which is specifically realized by the following technical scheme:

the physical exercise machine comprises a supporting seat, wherein a left moving part and a right moving part are symmetrically arranged on the upper end surface of the supporting seat along the length direction of the supporting seat, the left moving part comprises a first left arm supporting mechanism and a second left arm supporting mechanism which are arranged at intervals front and back, a guide groove I and a guide groove II are formed in the upper part of the supporting seat along the length direction of the supporting seat, the first left arm supporting mechanism is arranged in the guide groove I in a sliding manner, and the second left arm supporting mechanism is arranged in the guide groove II in a sliding manner;

the first left arm supporting mechanism comprises a sliding block and a first grab handle, the sliding block slides in the guide groove I left and right through an adjusting frame arranged in the middle of the supporting seat, an arc-shaped guide groove is formed in the upper end face of the sliding block, a jack is formed in the circle center position of the arc-shaped guide groove in the upper end face of the sliding block, one end of the first grab handle is rotatably connected with the jack, and the other end of the first grab handle is arranged in the arc-shaped guide groove in a sliding mode through a self-locking sliding assembly;

the second left arm supporting mechanism comprises a second grab handle, two guide grooves II are formed in the second left arm supporting mechanism, the two guide grooves II are arranged in parallel at intervals, two end parts of the second grab handle slide in the guide grooves II in the left and right directions through self-locking sliding assemblies, and telescopic assemblies for limiting the position of the second grab handle are arranged at the end parts of the guide grooves II on the left and right sides of the second grab handle;

the structure of the right movement part and the structure of the left movement part are mutually symmetrically arranged.

Preferably, the first grab handle and the second grab handle comprise two vertical rods and a cross rod which are arranged in a hollow manner, two ends of the cross rod are vertically connected with the end parts of the two vertical rods, the tail end of one vertical rod of the first grab handle rotates in the insertion hole, the tail end of the other vertical rod of the first grab handle slides in the arc-shaped guide groove, and the self-locking sliding component is arranged at the tail end of one vertical rod in the arc-shaped guide groove; the tail ends of the two vertical rods of the second grab handle slide in the two guide grooves II respectively, and the self-locking sliding assembly is arranged at the tail ends of the two vertical rods in the guide grooves II respectively.

Preferably, the self-locking sliding assembly comprises a vertical sleeve and a first gear, the lower end of the vertical sleeve is rotatably connected with the first gear, the upper end of the vertical sleeve is coaxially and rotatably connected with the tail end of a vertical rod of the first grab handle, the first gear is meshed with an arc rack arranged on the inner bottom surface of the arc guide groove along the arc length direction of the arc guide groove, a baffle is horizontally arranged at the upper end inside the vertical sleeve, an arc automatic seat is vertically and slidably arranged at the lower end inside the vertical sleeve, arc teeth meshed with the first gear are arranged at the lower part of the arc automatic seat, a first spring is vertically arranged between the baffle and the arc automatic seat, two ends of the first spring respectively abut against the baffle and the upper end surface and the lower end surface of the arc automatic seat, a cotton rope pulled upwards by the arc automatic seat is arranged at the upper part of the arc automatic seat, and the tail end of the cotton rope is connected with the end part of a pressing plate horizontally arranged in the cross rod, second springs are arranged between the two end parts of the pressure plate and the upper bottom plates of the two vertical rods, and buttons for pressing and holding the pressure plate are embedded in the middle positions of the lower parts of the cross rods.

Preferably, the upper end of the vertical sleeve is coaxially fixed or rotatably connected with the lower end of the vertical rod of the second grab handle, and the first gear is meshed with the first gear through a spur rack arranged on the bottom surface in the guide groove II along the length direction of the guide groove II.

Preferably, flexible subassembly includes that the horizontal slip locates the slide between two guide ways II, offers the direction spout that is used for the slide horizontal slip between two guide ways II, and the first screw rod and the outer nut that the left side terminal surface middle part of slide set up through the level are connected with the supporting seat left end, all are equipped with at slide right side both ends and are located corresponding guide way II and are used for carrying out spacing elastic component to the second grab handle.

Preferably, the following components: elastic component includes the guide post I with slide tip horizontally connect, and guide post I sets up along the length direction of guide way II, and coaxial and sliding connection has guide post II on guide post I, overlaps between guide post I and guide post II to be equipped with the spring, sets up the screw thread at the end of guide post II and adjusts the elasticity of spring through interior nut.

Preferably, the spring includes that two sections are connected through keeping off the ring third spring and fourth spring, overlaps in proper order between guide post I and the guide post II and establishes third spring, keeps off ring and fourth spring, and keeps off ring and guide post I and II sliding connection of guide post.

Preferably, the adjusting bracket comprises a second gear, a second screw rod, a rotary disc and an L-shaped rod with one end provided with a rack, the second gear is horizontally and rotatably connected with the middle of the supporting seat, the front side and the rear side of the gear are respectively meshed with the racks on the L-shaped rods arranged in parallel on the left side and the right side, one end of the L-shaped rod without the rack is connected with the sliding block, the second screw rod is vertically arranged on the supporting seat on the upper portion of the second gear, the lower portion of the second screw rod tightly pushes the second gear, and the upper end of the second screw rod is connected with the rotary disc.

Preferably, the end part of the free end of the guide column II is provided with a gasket, and the gasket increases the contact area with the outer walls of the vertical rods of the first grab handle and the second grab handle.

Preferably, the lower parts of the two long edges of the support seat are horizontally provided with inserting holes for inserting the first grab handle and the second grab handle

The invention has the beneficial effects that:

1. according to the push-up device, the sliding block is arranged at the upper part of the supporting seat in a sliding mode, and the first grab handle is rotatably arranged on the sliding block, so that the distance and the angle between two hands can be adjusted when a user does push-up, the movement intensity is changed when the user adjusts the movement intensity once, and the muscle exercising positions are different.

2. According to the invention, the second grab handle is arranged at the upper part of the supporting seat in a sliding manner, and the telescopic components are arranged at the left side and the right side of the second grab handle in a sliding manner, so that the lengths of the elastic components extending into the guide groove II are different through the outer nut in the knob telescopic component when in push-up, the strength of the spring is adjusted through the inner nut in the knob, the adjustment is carried out according to the requirement, and the muscle of the arm part can be quickly and effectively exercised.

3. According to the invention, the end part of the sliding plate in the telescopic component is provided with the double-section spring type elastic component, so that the exercise intensity is gradually increased in the moving process when the two hands hold the second grab handles on the two sides, a certain shock absorption effect can be properly achieved, and the effect of protecting the arms is achieved.

4. According to the push-up device, the self-locking assemblies arranged on the first grab handle and the second grab handle are used, the buttons are pressed through fingers in the push-up process according to needs, the states of the first grab handle and the second grab handle in the corresponding guide grooves can be selected at any time, so that the distance and the angle between the two hands can be adjusted, the push-up device is different from the conventional device to the greatest extent, namely the grab handles do not need to be pulled out for adjustment, and therefore physical energy consumption and muscle damage are reduced.

5. The invention is convenient to carry, occupies small area and is suitable for different sport environments.

Drawings

The invention is further described below with reference to the following figures and examples:

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

FIG. 2 is a cross-sectional view taken at A of FIG. 1;

FIG. 3 is a cross-sectional view of the first handle;

FIG. 4 is a cross-sectional view of the second handle;

FIG. 5 is an enlarged schematic view of the telescoping assembly of FIG. 2 at 7;

FIG. 6 is a schematic view of the structure of the adjusting frame;

wherein: 1-a support seat; 2-a guide groove I; 3-a guide groove II; 31-spur rack; 4-a first handle; 40-a button; 41-a pressing plate; 42-a second spring; 43-wire rope; 44-a first spring; 45-ear plate; 46-a horizontal rotating shaft; 47-a first gear; 48-arc automatic seat; 49-vertical sleeve; 50-a baffle; 5-a slide block; 51-a jack; 52-arc shaped rack; 53-arc guide groove; 6-a second grab handle; 7-a telescoping assembly; 70-external nut; 71-a first screw; 72-a slide plate; 73-guide post I; 74-a third spring; 75-guide post II; 76-a baffle ring; 77-a fourth spring; 78-an inner nut; 79-a gasket; 8-an adjusting frame; 81-a second screw; 82-a second gear; 83-L shaped rods; 84-a turntable; 9-inserting holes; 10-cover plate.

Detailed Description

As shown in fig. 1 to 6, the present invention includes a supporting seat 1, a left moving portion and a right moving portion are symmetrically disposed on an upper end surface of the supporting seat 1 along a length direction of the supporting seat 1, wherein the left moving portion includes a first left arm supporting mechanism a and a second left arm supporting mechanism B disposed at intervals in a front-back direction, a guiding groove i 2 and a guiding groove ii 3 are disposed on an upper portion of the supporting seat 1 along the length direction of the supporting seat 1, the first left arm supporting mechanism a is slidably disposed in the guiding groove i 2, and the second left arm supporting mechanism B is slidably disposed in the guiding groove ii 3;

the first left arm supporting mechanism A comprises a sliding block 5 and a first grab handle 4, the sliding block 5 slides in the guide groove I2 left and right through an adjusting frame 8 arranged in the supporting seat 1, an arc-shaped guide groove 53 is formed in the upper end face of the sliding block 5, a jack 51 is formed in the upper end face of the sliding block 5 at the position of the circle center of the arc-shaped guide groove 53, one end of the first grab handle 4 is rotatably connected with the jack 51, the other end of the first grab handle 4 is slidably arranged in the arc-shaped guide groove 53 through a self-locking sliding assembly, and one end of the first grab handle 4 rotates in the arc-shaped guide groove 53 by taking the jack 51 as the circle center;

the second left arm supporting mechanism comprises a second grab handle 6, two guide grooves II 3 are formed, the two guide grooves II 3 are arranged in parallel at intervals, two end parts of the second grab handle 6 slide in the guide grooves II 3 left and right through self-locking sliding assemblies, and telescopic assemblies 7 for limiting the position of the second grab handle 6 are arranged at the end parts of the guide grooves II 3 on the left side and the right side of the second grab handle 6;

The first grab handle 4 and the second grab handle 6 comprise two vertical rods and a cross rod which are arranged in a hollow manner, two ends of the cross rod are vertically connected with the end parts of the two vertical rods, the tail end of one vertical rod of the first grab handle 4 rotates in the insertion hole 51, the tail end of the other vertical rod of the first grab handle 4 slides in the arc-shaped guide groove 53, and the self-locking sliding component is arranged at the tail end of one vertical rod in the arc-shaped guide groove 53; the tail ends of the two vertical rods of the second grab handle 6 slide in the two guide grooves II 3 respectively, and the self-locking sliding assembly is arranged at the tail ends of the two vertical rods in the guide grooves II 3 respectively.

The self-locking sliding assembly comprises a vertical sleeve 49 and a first gear 47, wherein two sides of the lower end of the vertical sleeve 49 are provided with lug plates 45, a horizontal rotating shaft 46 is arranged between the lug plates 45, the horizontal rotating shaft 46 is provided with the first gear 47 in a rotating manner, the upper end of the vertical sleeve 49 is coaxially and rotatably connected with the tail end of a vertical rod of a first grab handle 47, the first gear 47 is meshed with an arc rack 52 arranged on the inner bottom surface of an arc guide groove 53 along the arc length direction of the arc guide groove 53, the upper end inside the vertical sleeve 49 is horizontally provided with a baffle plate 50, the lower end inside the vertical sleeve 49 is provided with an arc automatic seat 48 in a vertical sliding manner, the lower part of the arc automatic seat 48 is provided with arc teeth meshed with the first gear 47, a first spring 44 is vertically arranged between the baffle plate 50 and the arc automatic seat 48, and two ends of the first spring 44 respectively abut against the upper end surface and the lower end surface of the baffle plate 50 and the arc automatic seat 48, a wire rope 43 which is used for pulling the arc-shaped automatic seat 48 upwards is arranged at the upper part of the arc-shaped automatic seat 48, the tail end of the wire rope 43 is connected to the end part of a pressing plate 41 which is horizontally arranged in the cross rod, second springs 42 are arranged between the two end parts of the pressing plate 41 and the upper bottom plates of the two vertical rods, and a button 40 used for pressing the pressing plate 41 is embedded at the lower part of the cross rod in a centering position; the upper end of the vertical sleeve is coaxially fixed or rotatably connected with the lower end of the vertical rod of the second grab handle, and the first gear is meshed with a straight rack arranged on the bottom surface in the guide groove II along the length direction of the guide groove II. When a user holds the first grab handle 4 and the second grab handle 6 and selectively presses the button 40 with fingers in motion, the button 40 presses the second spring 42 through the pressing plate 41 to pull the cord 43, so that the arc-shaped automatic seat 48 at the lower end of the cord 43 presses the first spring 44 and slides upwards, the arc-shaped teeth at the lower part of the arc-shaped automatic seat 48 are not meshed with the first gear 47 any more, at the moment, the first grab handle 4 can slide in the arc-shaped guide groove 53, the adjustment of the angle and the distance between the first grab handles 4 on two sides of the support seat 1 is realized, and the second grab handle 6 can slide in the guide groove II 3, so that the adjustment of the distance between the second grab handles 6 on two sides of the support seat 1 is realized.

The flexible subassembly includes that the horizontal slip locates slide 72 between two guide ways II 3, offer the direction spout that is used for slide 72 horizontal slip between two guide ways II 3, first screw rod 71 and outer nut 70 that the left side terminal surface middle part of slide 72 set up through the level are connected with supporting seat 1 left end, both ends all are equipped with at slide 72 right side and are located corresponding guide way II 3 and are used for carrying out spacing elastic component to second grab handle 6, elastic component includes the guide post I73 with slide 72 tip horizontal connection, guide post I73 sets up along the length direction of guide way II 3, coaxial and sliding connection has guide post II 75 on guide post I73, the cover is equipped with the spring between guide post I73 and guide post II 75, set up the screw thread and adjust the elasticity of spring through interior nut 78 at the end of guide post II 75. The spring includes that the different third spring 74 of elastic coefficient and fourth spring 77 just connect through keeping off ring 76, overlaps in proper order between guide post I73 and the guide post II 75 and establishes third spring 74, keeps off ring 76 and fourth spring 77, and keeps off ring 76 and guide post I73 and II 75 sliding connection of guide post. The sliding plate 72 connected with the first screw rod 71 slides left and right along the guide sliding groove through the knob outer nut 70, the length of the telescopic component extending into the guide groove II 3 is changed, in the process of moving the second grab handle 6, the elastic component and the second grab handle 6 can be switched back and forth between contact and non-contact, the movement intensity is naturally reduced when the elastic component is not in contact, in the process of moving the knob outer nut 70, the distance between the second grab handle 6 and the guide post II 75 can be controlled in the moving process of the second grab handle 6, the size of the spring elasticity is adjusted through the knob inner nut 78, the movement intensity is also changed, the movement intensity can be increased when the body intensity is reached, when the second grab handles 6 on the two sides move oppositely or move backwards, the expansion movement with certain intensity is also carried out, simultaneously, the movement intensity is reduced according to the exercise requirement, the telescopic component 7 can be completely disassembled through the knob outer nut 70, or to replace parts within the telescopic assembly 7.

When the second grab handle 6 slides in the guide groove II 3, the spring with a small elastic coefficient is firstly extruded, the spring with a large elastic coefficient is then extruded, the spring with a small elastic coefficient is extruded when the second grab handle 6 contacts with the tail end gasket 79 of the guide post II 75, the guide post II 75 slides on the guide post I73, after the spring with a small elastic coefficient is compressed to a certain degree, the force is enough to compress the spring with a large elastic coefficient, then the compressed spring with a small elastic coefficient and the baffle ring 76 extrude the spring with a large elastic coefficient together, and the spring with a small elastic coefficient and the baffle ring 76 slide on the guide post I73 and the guide post II 75, so that when two hands hold the second grab handles 6 on two sides, the exercise strength is gradually increased, and the double-section spring can also properly play a certain damping effect to protect the arms.

The adjusting frame 8 comprises a second gear 82, a second screw 81, a rotary disc 84 and an L-shaped rod 83 with a rack arranged at one end, the second gear 82 is horizontally and rotatably connected with the middle of the supporting seat 1, the front side and the rear side of the gear are respectively meshed with the racks on the L-shaped rods 83 arranged in parallel on the left side and the right side, one end of the L-shaped rod 83 without the rack is connected with the sliding block 5, the second screw 81 is vertically arranged on the supporting seat 1 on the upper portion of the second gear 82, the lower portion of the second screw 81 tightly pushes the second gear 82, the upper end of the second screw 81 is connected with the rotary disc 84, and the second gear 82 can be tightly pushed and loosened through the manual rotary knob rotary disc 84. In a tight-pushing state, the second gear 82 does not rotate, the rack at the end part of the L-shaped rod 83 cannot be pulled towards two sides, and the sliding block 5 cannot slide in the guide groove I2, so that the sliding block 5 is fixed; in a loose state, the sliding blocks 5 on the two sides of the supporting seat 1 can be manually dragged to move towards or away from the guide groove I2.

A perspiration groove is formed in the supporting seat 1 between the second left arm supporting mechanisms B on the two sides, a cover plate 10 is horizontally inserted into the upper portion of the perspiration groove, the cover plate 10 covers the perspiration groove, and when the head of a user sweats during exercise, the head of the user can be discharged into the perspiration groove.

The outer nut in the corresponding telescopic component 7 on the right side of the second grab handle 6 is arranged in the perspiration groove.

Be equipped with gasket 79 at the end of guide post II 75, the laminating of gasket 79 and the montant outer wall of second grab handle 6, gasket 79 can increase with the area of contact of the montant outer wall of second grab handle 6, when being convenient for second grab handle 6 slides in guide way II 3, the top leans on gasket 79 extrusion spring that can be more steady.

The long limit tip in two of supporting seat 1 is equipped with the cartridge hole 9 that is used for first grab handle 4 of cartridge and second grab handle 6, when not using the device, for the convenience of carrying, takes out first grab handle 4 and second grab handle 6 cartridge and fixes in cartridge hole 9, is equipped with the handle at the minor face tip of supporting seat 1, the handle is convenient for carry of device.

In order to know first grab handle 4 and second grab handle 6 at the distance that I2 and II 3 of guide way removed, can know the intensity of training at any time, the border marks the angle along the arc length direction on I2 of guide way, the length direction who follows I2 of guide way and II 3 of guide way respectively at I2 of guide way and II 3 of guide way is marked the scale, when taking exercise, show angle or distance that becomes between the two hands constantly, so that progressively promote exercise intensity, prevent to damage the muscle.

The device is also internally provided with a pressure timing module. The pressure timing module comprises a pressure sensor, a single chip microcomputer and a display, the display is arranged at the end part of the supporting plate 1 through a flexible rod, the display is selected to be small and convenient to pack up, a mounting groove is formed in the end part of the supporting plate 1 in an inward mode, the pressure sensor is arranged in the mounting groove, the pressure sensor is used for collecting the stress of a human body to the supporting plate 1 when the human body performs push-up, the supporting strength of the arm part of the human body is reflected, the stress is displayed in real time through a display screen, the time of performing push-up can be displayed through the display screen, timing can also be performed, the push-up is planned like this, the tracking is gradual, and the muscle strength is gradually enhanced.

Besides, the device can be used for flat plate support, nylon cloth is arranged on the lower portion of the supporting plate 1 along the long edge of the supporting plate 1, small magnets are arranged at the free end of the nylon cloth and the end portion of the lower end face of the supporting plate 1, the nylon cloth is horizontally fixed on the lower end face of the supporting plate 1 through attraction of the small magnets, and when the flat plate support needs to be made, the nylon cloth can be unfolded.

When in use, the first grab handle 4 and the second grab handle 6 are respectively placed in the guide groove I2 and the guide groove II 3, the support seat 1 is horizontally placed on the bottom surface, the left hand and the right hand are respectively placed on the first grab handle 4 or the second grab handle 6 on the corresponding side of the support seat 1, when the two hands are placed on the first grab handle 4, the angle between two arms can be adjusted, when the two hands are placed on the second grab handle 6, the distance between two arms can be adjusted, according to the exercise requirement, the first grab handle 4 is selectively rotated to enable the angle between two arms or the selective two opposite sides to push the second grab handle 6, according to the requirement in the exercise process or in order to strengthen or lighten the exercise intensity, the first grab handle 4 or the second grab handle 6 is fixed or moved in the corresponding guide groove by pressing the button 40 with fingers, the length of the whole telescopic component 7 extending into the guide groove II 3 is adjusted by the knob nut 70, or the elasticity of the spring is changed through the internal nut 78 of the knob, so that the movement intensity of the spring is different, when the internal nut 78 is adjusted, in order to keep the stability of the second grab handle 6 in movement, the internal nut 78 in the guide groove II 3 on one side of the knob second grab handle 6 is synchronized, after the exercise is completed, the first grab handle 4 and the second grab handle 6 are taken out and placed in the insertion hole 9 for fixation, and the carrying of the device is more convenient through lifting the lifting handle.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. Sports machine, its characterized in that: the device comprises a supporting seat, wherein a left moving part and a right moving part are symmetrically arranged on the upper end surface of the supporting seat along the length direction of the supporting seat, the left moving part comprises a first left arm supporting mechanism and a second left arm supporting mechanism which are arranged at intervals front and back, a guide groove I and a guide groove II are formed in the upper part of the supporting seat along the length direction of the supporting seat, the first left arm supporting mechanism is arranged in the guide groove I in a sliding manner, and the second left arm supporting mechanism is arranged in the guide groove II in a sliding manner;

2. The sporting-good machine of claim 1, wherein: the first grab handle and the second grab handle comprise two vertical rods and a cross rod which are arranged in a hollow mode, two ends of the cross rod are perpendicularly connected with the end portions of the two vertical rods, the tail end of one vertical rod of the first grab handle rotates in the insertion hole, the tail end of the other vertical rod of the first grab handle slides in the arc-shaped guide groove, and the self-locking sliding assembly is arranged at the tail end of one vertical rod in the arc-shaped guide groove; the tail ends of the two vertical rods of the second grab handle slide in the two guide grooves II respectively, and the self-locking sliding assembly is arranged at the tail ends of the two vertical rods in the guide grooves II respectively.

3. The sporting-good machine of claim 2, wherein: the self-locking sliding assembly comprises a vertical sleeve and a first gear, the lower end of the vertical sleeve is rotatably connected with the first gear, the upper end of the vertical sleeve is coaxially and rotatably connected with the tail end of a vertical rod of a first grab handle, the first gear is meshed with an arc rack arranged on the inner bottom surface of an arc guide groove along the arc length direction of the arc guide groove, a baffle is horizontally arranged at the upper end inside the vertical sleeve, an arc automatic seat is arranged at the lower end inside the vertical sleeve in a vertical sliding manner, an arc tooth meshed with the first gear is arranged at the lower part of the arc automatic seat, a first spring is vertically arranged between the baffle and the arc automatic seat, two ends of the first spring respectively abut against the baffle and the upper end surface and the lower end surface of the arc automatic seat, a cotton rope which is upwards pulled against the arc automatic seat is arranged at the upper part of the arc automatic seat, the tail end of the cotton rope is connected with the end part of a pressing plate horizontally arranged in a cross rod, and second springs are arranged between two end parts of the pressing plate and the upper bottom plates of the two vertical rods, a button for pressing and holding the pressure plate is embedded at the lower middle position of the cross rod.

4. The sporting-good machine of claim 3, wherein: the upper end of the vertical sleeve is coaxially fixed or rotatably connected with the lower end of the vertical rod of the second grab handle, and the first gear is meshed with the straight rack arranged on the bottom surface in the guide groove II along the length direction of the guide groove II.

5. The sporting-good machine of claim 4, wherein: the telescopic assembly comprises a sliding plate which is arranged between two guide grooves II in a leftward-rightward sliding mode, a guide sliding groove used for the sliding plate to slide leftward and rightward is formed between the two guide grooves II, the middle of the end face of the left side of the sliding plate is connected with the left end of the supporting seat through a first screw rod and an outer nut which are horizontally arranged, and elastic assemblies which are located in the corresponding guide grooves II and used for limiting the second grab handle are arranged at the two ends of the right side of the sliding plate.

6. The sporting-good machine of claim 5, wherein: elastic component includes the guide post I with slide tip horizontally connect, and guide post I sets up along the length direction of guide way II, and coaxial and sliding connection has guide post II on guide post I, overlaps between guide post I and guide post II to be equipped with the spring, sets up the screw thread at the end of guide post II and adjusts the elasticity of spring through interior nut.

7. The sporting-good machine of claim 6, wherein: the spring includes that third spring and fourth spring that the elastic coefficient is different just connect through keeping off the ring, overlaps in proper order between guide post I and the guide post II and establishes third spring, keeps off ring and fourth spring, and keeps off ring and guide post I and II sliding connection of guide post.

8. The sporting-good machine of claim 7, wherein: the adjusting frame comprises a second gear, a second screw rod, a rotary disc and an L-shaped rod with one end provided with a rack, the second gear is horizontally connected with the middle of the supporting seat in a rotating mode, the front side and the rear side of the gear are respectively meshed with the rack on the L-shaped rod arranged in parallel with the left side and the right side, one end of the L-shaped rod without the rack is connected with the sliding block, the second screw rod is vertically arranged on the supporting seat on the upper portion of the second gear, the lower portion of the second screw rod tightly pushes the second gear, and the upper end of the second screw rod is connected with the rotary disc.

9. The sporting-good machine of claim 8, wherein: and a gasket is arranged at the end part of the free end of the guide column II, and the contact area between the gasket and the outer wall of the vertical rod of the first grab handle and the outer wall of the vertical rod of the second grab handle is increased.

10. The sporting-good implement of claim 9, wherein: the lower parts of the two long edges of the supporting seat are horizontally provided with inserting holes for inserting the first grab handle and the second grab handle.