CN113856133A

CN113856133A - Safe sports apparatus

Info

Publication number: CN113856133A
Application number: CN202111299841.3A
Authority: CN
Inventors: 冯应雄
Original assignee: Guangdong Yingxiong Sports Culture Industry Development Co ltd
Current assignee: Guangdong Yingxiong Sports Culture Industry Development Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2021-12-31

Abstract

The invention relates to a safe sports apparatus, which comprises upright columns symmetrically arranged and a plurality of support columns longitudinally arranged between the two upright columns at equal intervals, wherein an anti-skid mechanism for protecting the safety of climbing personnel, an exhaust mechanism for drying sweat of the climbing personnel and a cleaning mechanism for collecting sundries on the soles of the climbing personnel are arranged in each support column; according to the invention, the anti-skid mechanism and the exhaust mechanism are matched to ensure that the cylindrical sleeve is ventilated in the climbing process of a person, and gas in the cylindrical sleeve is discharged into the palm of the person to gaps among the anti-skid rods through the gas outlet holes, so that the palm of the hand holding the anti-skid rods is ventilated, and further, the hand sweat of the palm of the person is dried to a certain extent, thus the heat reducing effect is achieved for the person climbing the ladder, and the phenomenon that the body is injured due to the hand skid caused by excessive sweat of the person in the climbing process is avoided.

Description

Safe sports apparatus

Technical Field

The invention relates to the technical field of sports equipment, in particular to a safe sports equipment.

Background

The sports equipment is a general term for various equipment used in competitive sports competitions and body-building exercises. Sports apparatus uses comparatively extensively at school, training field and place of fitness, and different sports apparatus can give other people and bring different exercise effect and experience, but has also brought certain potential safety hazard simultaneously, for preventing that sports apparatus from causing the injury to personal safety, most sports apparatus all can be equipped with safety protection today, performance sports apparatus's value when guaranteeing user's personal safety.

The application of the Chinese patent publication No. CN 209154984U relates to the technical field of kindergarten physical education equipment, and discloses a safe type physical education climbing device for children. This safe type infant sports education climbing device, make things convenient for the infant to scramble through the bearing bar that sets up, in-process connecting rod at the climbing surrounds in the infant health outside, make infant's health be in and accept the net directly over, along with infant is at its high rising of in-process of climbing, tutor makes the drive wheel pull from the driving wheel rotation through adjusting the rotation handle, thereby drive the follower lever and rotate, thereby accomplish the promotion to solid fixed ring, thereby drive the movable block and shift up, the carriage release lever that sets up removes along the slide rail, thereby guarantee its removal process's stability, make and accept net and infant and keep a safe interval, thereby guarantee the safety of infant climbing in-process.

In indoor fitness place, the fitness equipment is various, and the exercise function of each type of fitness equipment is all different, and the cat ladder is mainly used for exercising the courage of children and the coordination ability of the body is the coordination of exercising four limbs. At the in-process of climbing, because physical demands can make the palm of the hand sweat in a large number, glossy ladder pole can make fitness personnel fall more easily at the climbing in-process, and current cat ladder all improves anti-skidding effect and security at the surperficial cladding one deck slipmembrane of ladder pole, nevertheless at the in-process of climbing, debris on the shoes can the adhesion be difficult for cleaing away on the slipmembrane, can bring inconvenience for other personnel's use, and the practicality is low.

To this end, the present invention provides a safe sporting apparatus.

Disclosure of Invention

In order to achieve the purpose, the invention provides a safe sports apparatus, which comprises upright columns symmetrically arranged and a plurality of support columns longitudinally arranged between the two upright columns at equal intervals, and is characterized in that: the inside of support column is provided with the anti-skidding mechanism that is used for protecting climbing personnel safety, is used for the exhaust mechanism of dry climbing personnel sweat and has the clean mechanism that is used for collecting climbing personnel sole debris, drives the clean mechanism and takes place vibrations when the anti-skidding mechanism moves down that exhaust mechanism drives outside carminative.

Preferably, two the opposite side of stand corresponds the position symmetry of support column and has seted up the lift groove, the position symmetry that the both ends of support column correspond the lift groove is provided with hollow elevator, hollow elevator sliding fit is in the inside of lift groove, the equal symmetrical fixedly connected with gag lever post of a plurality of lift inslot portions, the gag lever post all slides and runs through the upper and lower both ends of hollow elevator, the mounting groove has been seted up at the top middle part of support column outer wall, the mounting hole has all been seted up at both ends around the support column outer wall, a plurality of air vents have been seted up between the opposite side of two hollow elevator inner walls of horizontal symmetry, the air vent runs through the both ends of support column and communicates each other with the mounting groove.

Preferably, the antiskid mechanism includes that the symmetry sets up the disc at the mounting groove both ends, and the looks dorsal part of two discs all rotates through the lateral wall of bearing and support column to be connected, and the first half evenly distributed of disc outer wall has a plurality of positioning seats, the common fixedly connected with antiskid ribbed tile in two positioning seat tops of horizontal symmetry, and the surface of antiskid ribbed tile is provided with the rubber bulge.

Preferably, a plurality of cylindrical sleeves are fixedly connected between the opposite sides of the upper half sections of the two transverse discs, a via hole is formed in the position, corresponding to the cylindrical sleeves, of the side wall of each disc, and a plurality of air outlet holes are symmetrically formed in the outer wall of each cylindrical sleeve.

Preferably, the exhaust mechanism is including installing the foot-operated inflator in the lifting tank bottom, and the air inlet of foot-operated inflator passes through the inside intercommunication of flexible tube and hollow lifting block, and the outer wall cover of gag lever post is equipped with reset spring.

Preferably, the inside of support column still is provided with canceling release mechanical system, and canceling release mechanical system includes that the symmetry rotates the No. two gears of connection at two horizontal disc opposite side centers, the bottom symmetry fixedly connected with T type seat of mounting groove, and the top of two T type seats is vertically all seted up flutedly, and equal sliding fit in the inside of two recesses has a rack, and two racks one respectively with two No. two gear intermeshing, be connected between the one end of a rack and the support column lateral wall and be provided with coupling spring.

Preferably, clean mechanism sets up the arc backing plate at horizontal two disc opposite sides including the symmetry, the opposite side symmetry rotation of the back of the body of horizontal two hollow elevator inner walls is connected with the pivot, two pivots slide the lateral wall that runs through two discs respectively, the groove of dodging has all been seted up to the position that two gag lever post outer walls in the lift groove correspond the pivot, the fixed cover of outer wall symmetry of two pivots is equipped with No. two gears, No. two gears are located the inside of hollow elevator, No. two racks of top fixedly connected with in lift groove, No. two racks and No. two gear intermeshing, the rectangular hole has been seted up to the position that hollow elevator top corresponds No. two racks.

Preferably, the moving groove is formed in one side, close to the teeth of the second rack, of the rectangular hole, the trapezoid plate matched with the second rack is arranged in the sliding fit inside the moving groove, and the telescopic springs are symmetrically connected between one end, far away from the second rack, of the side wall of the trapezoid plate and the moving groove.

Preferably, a belt penetrates through the two mounting holes, and cams are symmetrically and fixedly sleeved on the outer walls of the two rotating shafts far away from the hollow lifting block.

Advantageous effects

According to the invention, the anti-skid mechanism and the exhaust mechanism are matched to ensure that the cylindrical sleeve is ventilated in the climbing process of a person, and gas in the cylindrical sleeve is discharged into the palm of the person to gaps among the anti-skid rods through the gas outlet holes, so that the palm of the hand holding the anti-skid rods is ventilated, and further, the hand sweat of the palm of the person is dried to a certain extent, thus the heat reducing effect is achieved for the person climbing the ladder, and the phenomenon that the body is injured due to the hand skid caused by excessive sweat of the person in the climbing process is avoided.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an enlarged schematic view of region a of fig. 1 according to the present invention.

Fig. 3 is a perspective view of the hollow lifting block and the supporting column of the present invention.

FIG. 4 is a perspective view of the disc, positioning seat, anti-slip rod and cylindrical sleeve of the present invention.

FIG. 5 is a cross-sectional view of a support post and disk of the present invention.

FIG. 6 is a perspective view of the hollow lifter block and the air discharge mechanism of the present invention.

Fig. 7 is a side cross-sectional view of the present invention.

Fig. 8 is an enlarged view of region D of fig. 7 according to the present invention.

Fig. 9 is a front sectional view of the present invention.

Fig. 10 is an enlarged schematic view of region B of fig. 9 in accordance with the present invention.

Fig. 11 is an enlarged schematic view of region C of fig. 9 in accordance with the present invention.

Fig. 12 is a schematic view and a partially enlarged view of the internal structure of the hollow elevating block of the present invention.

In the figure: 1. a column; 101. a lifting groove; 102. a hollow lifting block; 103. a limiting rod; 2. a support pillar; 201. mounting holes; 202. a vent hole; 3. an anti-slip mechanism; 301. a disc; 302. positioning seats; 303. an anti-slip bar; 304. a cylindrical sleeve; 305. a via hole; 306. an air outlet; 4. an exhaust mechanism; 401. a pedal type inflator; 402. a flexible tube; 403. a return spring; 5. a reset mechanism; 501. a second gear; 502. a T-shaped seat; 503. a first rack; 504. a connecting spring; 6. a cleaning mechanism; 601. an arc-shaped base plate; 602. a rotating shaft; 603. a second gear; 604. a second rack; 605. a moving groove; 606. a trapezoidal plate; 607. a tension spring; 608. a belt; 609. a cam.

Detailed Description

Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12, a safety sports apparatus comprises upright columns 1 and a plurality of support columns 2 longitudinally and equidistantly arranged between the two upright columns 1, wherein the opposite sides of the two upright columns 1 are symmetrically provided with lifting grooves 101 corresponding to the positions of the support columns 2, the lifting grooves 101 are equidistantly arranged along the height direction of the upright columns 1, the two ends of the support columns 2 are symmetrically provided with hollow lifting blocks 102 corresponding to the positions of the lifting grooves 101, the hollow lifting blocks 102 are in sliding fit in the lifting grooves 101, the opposite sides of the two transversely symmetrical hollow lifting blocks 102 are arc-shaped, the height of the hollow lifting blocks 102 is smaller than that of the lifting grooves 101, the insides of the lifting grooves 101 are respectively and bilaterally and symmetrically fixedly connected with limit rods 103, the limit rods 103 respectively slide through the upper ends and the lower ends of the hollow lifting blocks 102, the mounting groove has been seted up at the top middle part of 2 outer walls of support column, and mounting hole 201 has all been seted up at both ends around 2 outer walls of support column, has seted up a plurality of air vents 202 between the opposite side of two hollow elevator block 102 inner walls of horizontal symmetry, and air vent 202 runs through the both ends of support column 2 and communicates each other with the mounting groove, and a plurality of air vents 202 are arc form evenly distributed along the first half of 2 outer walls of support column.

During operation, personnel can climb through support column 2, and during the climbing, support column 2 drives hollow elevator 102 and moves the certain distance to the bottom of lift groove 101 along lift groove 101 downwards under personnel's the effect of gravity, the effect of pulling and the guide effect of gag lever post 103.

Referring to fig. 2, 4, 5, 8 and 11, an anti-slip mechanism 3 is arranged inside a support column 2, the anti-slip mechanism 3 includes disks 301 symmetrically arranged at two ends of a mounting groove, opposite sides of the two disks 301 are rotatably connected with side walls of the support column 2 through bearings, a plurality of positioning seats 302 are uniformly distributed on an upper half section of an outer wall of the disk 301, anti-slip rods 303 are fixedly connected to tops of two transverse positioning seats 302, rubber bumps are arranged on surfaces of the anti-slip rods 303 to play an anti-slip role, top ends of the anti-slip rods 303 are flush with outer walls of the support column 2, a gap exists between an outer wall of one anti-slip rod 303 close to a bottom end of the support column 2 and the support column 2, a gap does not exist between an outer wall of the other anti-slip rod 303 close to the bottom end of the support column 2 and the support column 2, and a plurality of cylindrical sleeves 304 are fixedly connected between opposite sides of upper half sections of the two transverse disks 301, a plurality of cylinder sleeve 304 are arc form evenly distributed along disc 301 outer wall, and are the staggered arrangement between cylinder sleeve 304 and the antiskid ribbed tile 303, and the conducting hole 305 has been seted up to the position that disc 301 lateral wall corresponds cylinder sleeve 304, and the conducting hole 305 communicates with the inside of cylinder sleeve 304 each other, and a plurality of ventholes 306 have been seted up to the outer wall of cylinder sleeve 304 from top to bottom symmetry.

During operation, the top of a plurality of antiskid ribbed tile 303 is held to the personnel and the bottom of support column 2 is climbed upwards, a plurality of antiskid ribbed tile 303 can take place to be less than 45 rotation to the front side in step under personnel's the effect of gravity and pulling force, positioning seat 302 drives a plurality of cylinder sleeve 304 and rotates under the drive of a plurality of antiskid ribbed tile 303 in step, a plurality of conducting holes 305 on the positioning seat 302 outer wall are linked together with a plurality of air vents 202 respectively this moment, the inside of hollow elevator 102 and cylinder sleeve 304 communicate each other through a plurality of conducting holes 305 and a plurality of air vents 202.

Referring to fig. 2, 6 and 8, the air exhaust mechanism 4 is arranged inside the lifting groove 101, the air exhaust mechanism 4 comprises a pedal type air cylinder 401 installed at the bottom end of the lifting groove 101, the pedal type air cylinder 401 is located between two limiting rods 103 inside the lifting groove 101, an air inlet of the pedal type air cylinder 401 is communicated with the inside of the hollow lifting block 102 through a flexible pipe 402, and a return spring 403 is sleeved on the outer wall of the limiting rod 103 and plays roles of buffering and returning.

In operation, when the pedal air cylinder 401 is pressurized, the pedal air cylinder 401 blows air into the hollow elevator block 102 through the flexible tube 402.

Referring to fig. 8 and 11, the inside of support column 2 is provided with canceling release mechanical system 5, canceling release mechanical system 5 includes that the symmetry rotates the second gear 501 of connection at two horizontal discs 301 opposite side centers, the bottom symmetry fixedly connected with T type seat 502 of mounting groove, the left end of T type seat 502 is T shape structure, the top of two T type seats 502 is vertically all seted up flutedly, equal sliding fit in the inside of two flutedly has a rack 503, two racks 503 respectively with two gears 501 intermeshing, be provided with coupling spring 504 between the one end of rack 503 and the support column 2 lateral wall.

During operation, the second gear 501 rotates along with the disc 301 in the direction of the connecting spring 504, the second gear 501 drives the first rack 503 to move backward, when the external force is removed, the first rack 503 returns to the original position under the elastic force of the connecting spring 504, and the second gear 501 and the disc 301 return to the original position under the driving of the first rack 503.

Referring to fig. 2, 8, 10, 11 and 12, a cleaning mechanism 6 is further disposed inside the supporting column 2, the cleaning mechanism 6 includes arc-shaped backing plates 601 which are symmetrically disposed on opposite sides of the two transverse discs 301 and have downward openings, the arc-shaped backing plates 601 are disposed right above the second gear 501, opposite sides of inner walls of the two transverse hollow lifting blocks 102 are symmetrically and rotatably connected with rotating shafts 602, the two rotating shafts 602 respectively slidably penetrate through side walls of the two discs 301 to between the two arc-shaped backing plates 601, avoidance grooves are disposed on outer walls of two limiting rods 103 in the lifting groove 101 corresponding to the rotating shafts 602, second gears 603 are symmetrically fixedly sleeved on outer walls of the two rotating shafts 602, the second gears 603 are disposed inside the hollow lifting blocks 102, a second rack 604 is fixedly connected to a top end of the lifting groove 101, the second rack 604 is engaged with the second gear 603, a rectangular hole is disposed on a top of the hollow lifting block 102 corresponding to the second rack 604, no. two rack 604 sliding fit is in the inside of rectangular hole, moving groove 605 has been seted up to one side that the rectangular hole is close to No. two rack 604 tooth, the length of moving groove 605 equals with the width of No. two rack 604, moving groove 605's inside sliding fit has with No. two rack 604 matched with trapezoidal board 606, symmetrical connection is provided with expanding spring 607 between the one end of trapezoidal board 606 lateral wall keeping away from No. two rack 604 and the moving groove 605, belt 608 is worn to be equipped with in the inside of two mounting holes 201, belt 608 cover is established at the top of support column 2 outer wall and horizontal two arc backing plates 601, the top of belt 608 is located between cylindrical sleeve 304 and the arc backing plate 601, the position symmetry fixed cover that hollow elevator block 102 was kept away from to two pivot 602 outer walls is equipped with cam 609, the farthest end of cam 609 is held against with the inner wall at belt 608 top.

When the lifting device works, when the hollow lifting block 102 slides downwards, the hollow lifting block 102 drives the rotating shaft 602 to synchronously move, the rotating shaft 602 is driven by the second rack 604 to rotate, the cam 609 coaxially connected with the second gear 603 synchronously rotates, when the farthest end of the cam 609 is contacted with the inner wall of the belt 608, the belt 608 is in a tight state, when the farthest end of the cam 609 is gradually separated from the belt 608, the belt 608 is in a loose state, so that the cam 609 can be used for jacking up and falling down the belt 608 in a reciprocating manner, the surface of the belt 608 vibrates, when the belt 608 is jacked up, the sundries on the top of the belt 608 can be discharged, the automatic cleaning of the sundries on the top of the belt 608 is facilitated, when the hollow lifting block 102 moves up and down, the hollow lifting block 102 drives the trapezoidal plate 606 to synchronously move, when the trapezoidal plate 606 is contacted with the teeth of the second rack 604, the trapezoidal plate 606 gradually moves towards the inside of the moving groove 605 under the extrusion force of the second rack 604, when the trapezoidal plate 606 moves to two adjacent tooth gaps of the second rack 604, the trapezoidal plate 606 gradually moves towards the second rack 604 under the action of the elastic force of the telescopic spring 607, so that the sealing performance between the second rack 604 and the rectangular hole is improved, and the gas in the hollow lifting block 102 is prevented from being discharged outwards through the rectangular hole, so that the gas introduced into the cylindrical sleeve 304 is reduced, the air-drying effect of hand sweat is reduced, and the ideal anti-skidding effect cannot be achieved.

The working principle is as follows: a person can climb through the supporting column 2, when climbing, the supporting column 2 drives the hollow lifting block 102 and the plurality of anti-slip rods 303 to move downwards along the lifting groove 101 for a certain distance to the bottom end of the lifting groove 101 under the action of the self-gravity and the pulling force of the person and the guiding action of the limiting rod 103, the plurality of anti-slip rods 303 can synchronously rotate for less than 45 degrees towards the front side under the action of the self-gravity and the pulling force of the person, the positioning seat 302 drives the plurality of cylindrical sleeves 304 to synchronously rotate under the drive of the plurality of anti-slip rods 303, the second gear 501 synchronously rotates towards the direction of the connecting spring 504 along with the disc 301, the second gear 501 drives the first rack 503 to move backwards, at the moment, the plurality of through holes 305 on the outer wall of the positioning seat 302 are respectively communicated with the plurality of air vents 202, the inside of the hollow lifting block 102 and the inside of the cylindrical sleeves 304 are communicated with the plurality of air vents 202 through the plurality of through the through holes 305, pressure is exerted to the top of pedal type inflator 401 at the in-process that hollow elevator 102 moved down, pedal type inflator 401 can blow in hollow elevator 102 and cylinder sleeve 304 with the air through flexible tube 402, the gas in cylinder sleeve 304 is arranged in personnel's the palm to the gap between a plurality of antiskid ribbed tile 303 through venthole 306, ventilate to this palm that the adversary held antiskid ribbed tile 303, carry out certain air-dry to the hand sweat of personnel's palm, and play the effect of reducing fever to the personnel of cat ladder, avoid personnel to cause the phenomenon that the hand slided and cause the bodily injury at the in-process of climbing sweat volume too big.

When the hollow lifting block 102 slides downwards, the hollow lifting block 102 drives the rotating shaft 602 to move synchronously, the rotating shaft 602 is driven by the second rack 604 to rotate, the cam 609 coaxially connected with the second gear 603 rotates synchronously, when the farthest end of the cam 609 is contacted with the inner wall of the belt 608, the belt 608 is in a tightening state, when the farthest end of the cam 609 is gradually separated from the belt 608, the belt 608 is in a loosening state, so that the cam 609 performs reciprocating jacking and falling on the belt 608, the surface of the belt 608 vibrates, when the belt 608 is jacked up, sundries on the top of the belt 608 are discharged, the automatic cleaning of the sundries on the top of the belt 608 is facilitated, when the hollow lifting block 102 moves upwards and downwards, the hollow lifting block 102 drives the trapezoidal plate 606 to move synchronously, when the trapezoidal plate 606 is contacted with teeth of the second rack 604, the trapezoidal plate 606 gradually moves towards the inside of the moving groove 605 under the extrusion force of the second rack 604, when the trapezoidal plate 606 moves into two adjacent tooth gaps of the second rack 604, the trapezoidal plate 606 gradually moves towards the second rack 604 under the action of the elastic force of the expansion spring 607, so that the sealing performance between the second rack 604 and the rectangular hole is improved, and the gas in the hollow lifting block 102 is prevented from being discharged outwards through the rectangular hole, so that the gas introduced into the cylindrical sleeve 304 is reduced, the effect of drying by hand sweat is reduced, and an ideal anti-skid effect cannot be achieved.

Claims

1. The utility model provides a safe sports apparatus, is provided with stand and a plurality of vertical equidistant support column of setting between two stands including the symmetry, its characterized in that: the inside of support column is provided with the anti-skidding mechanism that is used for protecting climbing personnel safety, is used for the exhaust mechanism of dry climbing personnel sweat and has the clean mechanism that is used for collecting climbing personnel sole debris, drives the clean mechanism and takes place vibrations when the anti-skidding mechanism moves down that exhaust mechanism drives outside carminative.

2. A safety sporting apparatus according to claim 1, wherein: two the opposite side of stand corresponds the position symmetry of support column and has seted up the lift groove, the position symmetry that the both ends of support column correspond the lift groove is provided with hollow elevator, hollow elevator sliding fit is in the inside of lift groove, the equal symmetrical fixedly connected with gag lever post in a plurality of lift inslots, the gag lever post all slides and runs through the upper and lower both ends of hollow elevator, the mounting groove has been seted up at the top middle part of support column outer wall, the mounting hole has all been seted up at both ends around the support column outer wall, a plurality of air vents have been seted up between the opposite side of two hollow elevator inner walls of horizontal symmetry, the air vent runs through the both ends of support column and communicates each other with the mounting groove.

3. A safety sporting apparatus according to claim 2, wherein: the anti-skidding mechanism comprises disks symmetrically arranged at two ends of the mounting groove, the opposite sides of the two disks are rotatably connected with the side walls of the supporting columns through bearings, a plurality of positioning seats are uniformly distributed on the upper half section of the outer wall of each disk, anti-skidding rods are fixedly connected to the tops of the two transversely symmetrical positioning seats together, and rubber bulges are arranged on the surfaces of the anti-skidding rods.

4. A safety sporting apparatus according to claim 3, wherein: a plurality of cylindrical sleeves are fixedly connected between the opposite sides of the upper half sections of the two transverse discs, the positions of the side walls of the discs corresponding to the cylindrical sleeves are provided with via holes, and the outer walls of the cylindrical sleeves are symmetrically provided with a plurality of air outlet holes.

5. A safety sporting apparatus according to claim 2, wherein: the air exhaust mechanism comprises a pedal type air cylinder arranged at the bottom end of the lifting groove, an air inlet of the pedal type air cylinder is communicated with the inside of the hollow lifting block through a flexible pipe, and a reset spring is sleeved on the outer wall of the limiting rod.

6. A safety sporting apparatus according to claim 3, wherein: the inside of support column still is provided with canceling release mechanical system, and canceling release mechanical system includes that the symmetry rotates the No. two gears of connection at horizontal two disc opposite side centers, the bottom symmetry fixedly connected with T type seat of mounting groove, and the top of two T type seats is vertically all seted up flutedly, and the equal sliding fit in inside of two recesses has a rack, and two racks respectively with two No. two gear intermeshing, be connected between the one end of a rack and the support column lateral wall and be provided with coupling spring.

7. A safety sporting apparatus according to claim 3, wherein: clean mechanism sets up the arc backing plate at horizontal two disc opposite sides including the symmetry, the opposite side symmetrical rotation of back of the body of horizontal two hollow elevator inner walls is connected with the pivot, two pivots slide the lateral wall that runs through two discs respectively, the groove of dodging has all been seted up to the position that two gag lever post outer walls in the lift groove correspond the pivot, the fixed cover of outer wall symmetry of two pivots is equipped with No. two gears, No. two gears are located the inside of hollow elevator, No. two racks of top fixedly connected with in lift groove, No. two racks and No. two gear intermeshing, the rectangular hole has been seted up to the position that hollow elevator top corresponds No. two racks.

8. A safety sporting apparatus according to claim 7, wherein: the moving groove is formed in one side, close to the second rack teeth, of the rectangular hole, the ladder-shaped plate matched with the second rack is arranged in the sliding fit inside the moving groove, and the telescopic springs are symmetrically connected between one end, far away from the second rack, of the side wall of the ladder-shaped plate and the moving groove.

9. A safety sporting apparatus according to claim 7, wherein: two the belt is worn to be equipped with in the inside of mounting hole, and the fixed cover in the position symmetry that hollow elevator was kept away from to two pivot outer walls is equipped with the cam.