Barbell anti-falling device and method

Abstract

The invention relates to the technical field of fitness equipment, and discloses a barbell anti-falling device and method, the barbell anti-falling device comprises a frame and two hangers detachably mounted on the frame, a barbell is hung on the two hangers, the frame comprises a U-shaped bottom frame and two supporting beams mounted at the top of the U-shaped bottom frame, each supporting beam comprises two steel columns and two connecting blocks, and the two connecting blocks are connected with the U-shaped bottom frame. The two connecting blocks are distributed at the top ends and the bottom ends of the opposite faces of the two steel columns, a gap is formed between the two steel columns, and a rectangular frame is installed at the top ends of the two supporting beams. The positioning arm, the fiber rope, the pulley A, the pulley B and the anti-falling block work cooperatively, it is ensured that when the barbell falls off, the barbell can react rapidly and prevent falling, meanwhile, the fiber rope is prevented from being excessively tightened or falling off, the height of the positioning arm is adjustable, the device adapts to users with height training requirements, and the use flexibility of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fitness equipment, and in particular to a barbell anti-falling device and method. Background Art

[0002] In modern fitness, barbells are a common strength training equipment and are widely used in various gyms and home fitness environments. Barbell training can effectively improve athletes' strength, muscle mass and athletic performance. However, when doing barbell training, especially when doing heavy bench presses and squats, athletes may lose control of the barbell due to lack of strength or mistakes, resulting in a barbell drop accident. This accident may cause injuries to athletes at the least, or even life-threatening at the worst.

[0003] In order to reduce the safety risks during barbell training, many barbell anti-fall devices have appeared in the prior art. The main function of these devices is to take timely measures to prevent the barbell from falling when the athlete loses control of the barbell, thereby protecting the athlete's personal safety. The falling barbell is mainly blocked by the bracket, but the design of the bracket also has some disadvantages:

[0004] The position of the bracket may restrict the lifter's squatting movement, especially when performing a low-bar squat. The safety bracket may contact the barbell before the lifter reaches the full squat position, thus limiting the depth of the squat. Therefore, the position of the safety bracket is likely to affect the user's performance.

[0005] In some cases, if safety brackets are not properly set up or used, they may not be effective in preventing the barbell from falling, especially if the lifter loses balance or falls suddenly.

[0006] In order to solve these problems, the present invention proposes a barbell anti-falling device. Summary of the invention

[0007] In view of the above shortcomings of the prior art, the present invention provides a barbell anti-fall device and method to improve the safety of barbell training and reduce the injuries caused by the barbell falling. The device achieves effective support and protection for the barbell through a series of innovative designs, ensuring the safety of athletes during training.

[0008] The present invention provides the following technical solutions: a barbell anti-fall device, comprising a frame and two hangers detachably mounted on the frame, and a barbell is hung on the two hangers, the frame comprises a U-shaped bottom frame and two support beams mounted on the top of the U-shaped bottom frame, and the support beam comprises two steel columns and two connecting blocks, and the two connecting blocks are distributed at the top and bottom ends of the opposite surfaces of the two steel columns, and a gap is formed between the two steel columns, a rectangular frame is installed at the top ends of the two support beams, and a triangular stabilizing frame connected to the U-shaped bottom frame and the rectangular frame is installed at the top and bottom ends of the support beams;

[0009] The two support beams are each provided with a slidable positioning arm, and the positioning arm is adjusted and locked on the support beam, the outer side of the rectangular frame is provided with a plurality of groups of A pulleys, and the plurality of groups of A pulleys are provided with fiber ropes, and the fiber ropes extend downward from the two A pulleys at the edge, one end of the fiber rope is connected to the anti-fall block through a hole on the positioning arm, and the other end of the fiber rope is detachably connected to the movable sleeves at both ends of the barbell, and the movable sleeves are rotatable at both ends of the barbell;

[0010] The steel column is provided with a scale for measuring distance, so that the two positioning arms are kept at the same height and the anti-fall block is blocked, and the fiber rope is used to prevent the barbell from falling.

[0011] Preferably, the steel column is provided with a plurality of groups of holes which are equidistantly distributed, and the hanger is connected to the holes on the steel column by bolts, and the position of the hanger is adjusted through the holes on the steel column.

[0012] Preferably, both ends of the U-shaped bottom frame are detachably mounted with outwardly extending stabilizing columns, and the stabilizing columns are inserted into the end faces of the U-shaped bottom frame through rectangular plug columns, so that the contact area of ​​the U-shaped bottom frame is increased through the stabilizing columns, thereby enhancing the supporting performance.

[0013] Preferably, the two triangular stabilizers on the top of the support beam are both equipped with B pulleys for positioning the fiber rope, and the fiber rope is guided by the B pulley to prevent the fiber rope from escaping from the A pulley.

[0014] Preferably, the positioning arm includes a bracket arranged on the support beam, and the bracket can be detachably installed on the support beam, a positioning piece located between two steel columns is installed on the bracket, and grooves are provided on the opposite surfaces of the two steel columns, and straight racks are provided in the grooves of the steel columns, and the positioning piece slides between the two steel columns and contacts with the straight racks to be locked.

[0015] Preferably, the bracket includes a U-shaped part that slides on the support beam, and the positioning part is installed on the inner side of the U-shaped part by bolts, a triangular support arm is installed on one side of the U-shaped part, and a support plate for blocking the passage of the anti-fall block is installed on one side of the triangular support arm, and the support plate is provided with holes for the fiber rope to pass through, and slide rails are installed on both end faces of the U-shaped part, and the U-shaped part is slidably connected to the support plate through the slide rails, and the support plate is connected to the slide rails by bolts.

[0016] Preferably, the positioning member includes a rectangular shell and a rotatable driving shaft arranged inside the rectangular shell, and the driving shaft extends from the top of the rectangular shell, and four rotatable and symmetrically distributed threaded columns are arranged inside the rectangular shell, and the driving shaft and the four threaded columns are driven by bevel gear meshing, a rotatable positioning column is arranged in the middle of the driving shaft, and slidable rack blocks are arranged at both ends of the positioning column, and every two threaded columns are threadedly connected to a rack block, and the rack block extends from the side of the rectangular shell, and the threaded column is rotated by rotating the driving shaft, so that the rack block extends from the side of the rectangular shell and contacts with the straight rack in the groove of the steel column.

[0017] Preferably, the movable sleeve includes an end plate and a connecting shaft installed at one end of the end plate, movable grooves are provided at both ends of the barbell, and the connecting shaft is rotatably connected to the movable groove, and the fiber rope is buckled on the circular ring of the end plate through a safety buckle.

[0018] Preferably, the connecting shaft includes a shaft rod and a trumpet-shaped shaft end connected to the shaft rod, the surface of the shaft end is wrapped with two positioning sleeves separated in half, and the shaft end rotates in the positioning sleeve, the surface of the positioning sleeve is provided with a positioning strip, and the inner wall of the movable groove on the barbell is provided with a wire groove for inserting the positioning strip, the diameter of the positioning sleeve is the same as the diameter of the shaft rod, and the barbell locks the positioning sleeve by bolts so that the connecting shaft rotates at both ends of the barbell.

[0019] A barbell anti-falling method, the specific operation is as follows:

[0020] S1. Adjust the height of the two positioning arms and lock them as needed, and keep them at the same height. Then adjust the positions of the two hangers, and finally hang the barbell on the two hangers. Finally, connect the fiber rope to the barbell, and then you can start training;

[0021] S2. During training, after the barbell is released from the hands, the barbell drives the fiber rope to fall rapidly, and the other end of the fiber rope drives the anti-fall block to rise rapidly and is blocked by the positioning arm. Under the pull of the fiber rope, the barbell stops falling.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The frame consists of a U-shaped bottom frame, a support beam, a rectangular frame and a triangular stabilizer. The combination of steel columns and connecting blocks and the setting of the triangular stabilizer enhance the stability of the entire frame and can effectively prevent the frame from shaking or deforming during use. The design of the U-shaped bottom frame ensures stability while reducing the structure at the front end of the frame, providing users with an unobstructed training space and facilitating various barbell training movements;

[0024] (2) The positioning arm, fiber rope, pulley A, pulley B and anti-fall block work together to ensure that the barbell can react quickly and prevent it from falling when it falls, while preventing the fiber rope from being over-tightened or falling off. The height of the positioning arm is adjustable to meet the needs of users with high training needs, increasing the flexibility of the equipment. The detachable design of the positioning arm makes maintenance and replacement more convenient, improving the long-term performance of the equipment.

[0025] (3) The design of the equipment takes into account the user's usage habits. For example, the rotatable design of the movable sleeve reduces the torque on the fiber rope and improves the comfort and safety during training. The design of the connecting shaft and positioning sleeve not only ensures the stability of the barbell during training, but also protects the barbell itself from being damaged and falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the framework of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the positioning arm of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the bracket of the present invention;

[0030] Figure 5 It is a structural schematic diagram of the positioning member of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the movable sleeve of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the connecting shaft of the present invention.

[0033] In the figure: 1, frame; 2, hanger; 3, barbell; 4, positioning arm; 5, pulley A; 6, fiber rope; 7, anti-fall block; 8, movable sleeve; 9, pulley B; 10, stabilizing column; 11, U-shaped bottom frame; 12, support beam; 13, steel column; 14, connecting block; 15, rectangular frame; 16, triangular stabilizing frame; 17, stabilizing column; 18, rectangular plug column; 41, bracket; 42, positioning piece; 43 , straight rack; 411, U-shaped part; 412, triangular support arm; 413, support plate; 414, slide rail; 415, support plate; 421, rectangular shell; 422, drive shaft; 423, threaded column; 424, positioning column; 425, rack block; 81, end plate; 82, connecting shaft; 83, movable groove; 84, safety buckle; 85, shaft rod; 86, shaft end; 87, positioning sleeve; 88, positioning strip. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components to avoid unnecessary confusion of the concepts of the present invention.

[0035] See also Figure 1 , a barbell anti-fall device, comprising a frame 1 and two hangers 2 detachably mounted on the frame 1, and a barbell 3 is hung on the two hangers 2;

[0036] See also Figure 2 The frame 1 includes a U-shaped bottom frame 11 and two support beams 12 installed on the top of the U-shaped bottom frame 11. The support beam 12 includes two steel columns 13 and two connecting blocks 14. The two connecting blocks 14 are distributed at the top and bottom ends of the opposite surfaces of the two steel columns 13, and a gap is formed between the two steel columns 13. This design enhances the stability of the structure, and the combination of the steel columns 13 and the connecting blocks 14 can provide sufficient supporting force.

[0037] A rectangular frame 15 is installed at the top of the two support beams 12, and a triangular stabilizing frame 16 connected to the U-shaped bottom frame 11 and the rectangular frame 15 is installed at the top and bottom of the support beam 12. The setting of the triangular stabilizing frame 16 enhances the stability of the entire frame, can effectively prevent the frame from shaking or deforming during use, and reduces the investment in other strengthening structures, reduces the overall volume of the frame 1, and allows the front end of the frame 1 to have a movable space.

[0038] The steel column 13 is provided with a plurality of equally spaced holes, and the hanger 2 is connected to the holes on the steel column 13 by bolts. In this way, the position of the hanger 2 can be adjusted through the holes on the steel column 13 to meet the needs of different users.

[0039] The two ends of the U-shaped bottom frame 11 are detachably installed with outwardly extending stabilizing columns 17, and the stabilizing columns 17 are inserted into the end surface of the U-shaped bottom frame 11 through rectangular plug columns 18. The contact area of ​​the U-shaped bottom frame 11 is increased by the stabilizing columns 17 to enhance the supporting performance. In this way, the rear part of the U-shaped bottom frame 11 is not blocked and the space in this area is large, which is convenient for users to contact in this area.

[0040] See also Figure 1 , two supporting beams 12 are each provided with a slidable positioning arm 4, and the positioning arm 4 is adjusted and locked on the supporting beam 12, a plurality of groups of A pulleys 5 are provided on the outer side of the rectangular frame 15, and a fiber rope 6 is provided on the plurality of groups of A pulleys 5, and the fiber rope 6 extends downward from the two A pulleys 5 on the edge, one end of the fiber rope 6 is connected to the anti-fall block 7 through the hole on the positioning arm 4, and the other end of the fiber rope 6 is detachably connected to the movable sleeve 8 at both ends of the barbell 3, and the movable sleeve 8 is rotatable at both ends of the barbell 3, and a scale for measuring distance is provided on the steel column 13, so that the two positioning arms 4 maintain the same height and block the anti-fall block 7, and the barbell 3 is prevented from falling by the fiber rope 6. This design can ensure that when the barbell falls accidentally, the positioning arm can accurately block the anti-fall block, thereby effectively preventing the barbell from continuing to fall.

[0041] The two triangular stabilizers 16 on the top of the support beam 12 are both equipped with B pulleys 9 for positioning the fiber rope 6. The fiber rope 6 is guided by the B pulley 9 to prevent it from detaching from the A pulley 5. This prevents the fiber rope 6 from being over-tightened and falling off the A pulley 5 during the falling process of the barbell 3. The use of two B pulleys 9 can solve the problem of guiding the fiber rope 6.

[0042] See also Figure 3 The positioning arm 4 includes a bracket 41 arranged on the support beam 12, and the bracket 41 is detachably mounted on the support beam 12. A positioning member 42 located between the two steel columns 13 is mounted on the bracket 41, and the opposite surfaces of the two steel columns 13 are provided with grooves, and a straight rack 43 is provided in the groove of the steel column 13. The positioning member 42 slides between the two steel columns 13 and contacts with the straight rack 43 to lock. Since the positioning arm 4 is impacted by the anti-fall block 7, the positioning arm 4 is easily deformed. Therefore, the detachable design makes the positioning arm 4 easy to install and maintain. The user can quickly replace or adjust the position of the positioning arm as needed, which improves the adaptability and convenience of the equipment. The positioning member 42 can also lock the steel column 13, and the positioning member 42 is located between the two steel columns 13. While facilitating adjustment, the positioning member 42 is also protected, so that the two steel columns 13 can be evenly stressed.

[0043] See also Figure 4The bracket 41 includes a U-shaped member 411 sliding on the support beam 12, and the positioning member 42 is installed on the inner side of the U-shaped member 411 by bolts. A triangular bracket arm 412 is installed on one side of the U-shaped member 411, and a support plate 413 for blocking the passage of the anti-fall block 7 is installed on one side of the triangular bracket arm 412. The support plate 413 is provided with a hole for the fiber rope 6 to pass through. The design of the U-shaped member 411 and the supporting structure of the triangular bracket arm 412 provide additional stability. This structural design reduces the possibility of displacement of the positioning arm 4 under high load or accidental impact, and ensures the stability of the equipment during use.

[0044] Both end surfaces of the U-shaped member 411 are installed with slide rails 414, and the U-shaped member 411 is slidably connected to a support plate 415 through the slide rails 414, and the support plate 415 is connected to the slide rails 414 through bolts. The sliding connection design between the U-shaped member 411 and the support plate 415 enables the positioning arm 4 to move smoothly on the support beam 12. The combination of the slide rails 414 and the bolts provides a stable sliding path, while allowing the positioning arm to be quickly installed, and the positioning arm 4 can be replaced if it is deformed.

[0045] A threaded hole is provided on the slide rail 414, so that the support plate 415 can guide the bolt into the threaded hole on the slide rail 414 to prevent the support plate 415 from falling off and enhance the stability of the support plate 415. A slideway corresponding to the slide rail 414 is provided on the support plate 415, and the slideway extends to the top of the support plate 415 but does not penetrate through it. In this way, after the support plate 415 is installed, the bolts are aligned with the threaded holes on the slide rail 414.

[0046] See also Figure 5 The positioning member 42 includes a rectangular shell 421 and a rotatable drive shaft 422 arranged inside the rectangular shell 421, and the drive shaft 422 extends from the top of the rectangular shell 421. Four rotatable and symmetrically distributed threaded columns 423 are arranged inside the rectangular shell 421, and the drive shaft 422 and the four threaded columns 423 are driven by bevel gear meshing. A rotatable positioning column 424 is arranged in the middle of the drive shaft 422, and slidable rack blocks 425 are arranged at both ends of the positioning column 424, and every two threaded columns 423 are threadedly connected to a rack block 425, and the rack block 425 extends from the side of the rectangular shell 421.

[0047] By rotating the drive shaft 422, under the meshing transmission of the bevel gear, the four threaded columns 423 rotate simultaneously, so that the rack block 425 extends from the side of the rectangular shell 421 and contacts the straight rack 43 in the groove of the steel column 13, so as to lock the position, and the positioning column 424 is mainly used for position guidance during the movement of the rack block 425 to prevent its deviation. The bevel gear meshing transmission design between the drive shaft 422 and the threaded column 423, and the threaded connection between the positioning column 424 and the rack block 425 constitute a built-in locking mechanism. This mechanism can ensure that the positioning arm 4 is fixed in position after it is adjusted to the appropriate position to prevent accidental sliding during training.

[0048] See also Figure 6 The movable sleeve 8 includes an end plate 81 and a connecting shaft 82 installed at one end of the end plate 81. Both ends of the barbell 3 are provided with movable grooves 83, and the connecting shaft 82 is rotatably connected to the movable grooves 83. The fiber rope 6 is buckled on the ring of the end plate 81 through a safety buckle 84. During the training of the barbell 3, each person has different habits and the barbell 3 will roll. Therefore, the safety buckle 84 is buckled on the rotatable movable sleeve 8 so that the fiber rope 6 will not be subjected to excessive torque during the rolling process of the barbell 3. The ring on the end plate 81 needs to be connected stably enough, and it is best to be integrally formed to resist the pulling force during the falling process of the barbell 3.

[0049] See also Figure 7 The connecting shaft 82 includes a shaft rod 85 and a trumpet-shaped shaft end 86 connected to the shaft rod 85. The surface of the shaft end 86 is wrapped with two half-separated positioning sleeves 87, and the shaft end 86 rotates in the positioning sleeve 87. The surface of the positioning sleeve 87 is provided with a positioning strip 88, and the inner wall of the movable groove 83 on the barbell 3 is provided with a wire groove for inserting the positioning strip 88. The diameter of the positioning sleeve 87 is the same as the diameter of the shaft rod 85. The barbell 3 locks the positioning sleeve 87 with bolts, so that the connecting shaft 82 rotates at both ends of the barbell 3.

[0050] In this way, the movable sleeve 8 can rotate at both ends of the barbell 3, and can also be pulled by the fiber rope 6, and is not easy to break. The shaft end 86 is used to rotate in the two positioning sleeves 87, and the two positioning sleeves 87 are fixed in the movable groove 83 on the barbell 3 by bolts. In this way, the two positioning sleeves 87 are fixed, and the position of the shaft end 86 is also fixed. In this way, the connecting shaft 82 will not detach from the barbell 3, and the connecting shaft 82 provides support for the end plate 81, so that the movable sleeve 8 is not easy to break or fall off after being pulled by the fiber rope 6.

[0051] The positioning strip 88 on the surface of the positioning sleeve 87 also facilitates the positioning sleeve 87 to be inserted into the movable groove 83 on the barbell 3 to position the threaded hole thereon. When the positioning sleeve 87 reaches the bottom along the wire groove in the movable groove 83, the threaded hole on the positioning sleeve 87 corresponds to the threaded hole on the barbell 3, which facilitates the installation of the bolt.

[0052] A barbell anti-falling method, the specific operation is as follows:

[0053] S1. Adjust the height of the two positioning arms 4 and lock them as needed, and keep them at the same height. Then adjust the positions of the two hangers 2, and finally hang the barbell 3 on the two hangers 2. Finally, connect the fiber rope 6 to the barbell 3, and then you can start training;

[0054] S2. During training, after the barbell 3 is released from the hands, the barbell 3 drives the fiber rope 6 to fall rapidly, and the other end of the fiber rope 6 drives the anti-fall block 7 to rise rapidly and is blocked by the positioning arm 4. Under the pull of the fiber rope 6, the barbell 3 stops falling.

[0055] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A barbell anti-fall device, comprising a frame (1) and two hangers (2) detachably mounted on the frame (1), and a barbell (3) is hung on the two hangers (2), characterized in that: The frame (1) comprises a U-shaped bottom frame (11) and two support beams (12) installed on the top of the U-shaped bottom frame (11), and the support beam (12) comprises two steel columns (13) and two connection blocks (14), and the two connection blocks (14) are distributed at the top and bottom ends of the opposite surfaces of the two steel columns (13), and a gap is formed between the two steel columns (13), and the top ends of the two support beams (12) are installed with rectangular frames (15), and the top and bottom ends of the support beams (12) are both installed with triangular stabilizing frames (16) connected to the U-shaped bottom frame (11) and the rectangular frames (15); The two support beams (12) are each provided with a slidable positioning arm (4), and the positioning arm (4) is adjusted and locked on the support beam (12); the outer side surface of the rectangular frame (15) is provided with a plurality of groups of A pulleys (5), and the plurality of groups of A pulleys (5) are provided with fiber ropes (6), and the fiber ropes (6) extend downward from the two A pulleys (5) at the edge, one end of the fiber rope (6) is connected to the anti-fall block (7) through a hole on the positioning arm (4), and the other end of the fiber rope (6) is detachably connected to the movable sleeves (8) at both ends of the barbell (3), and the movable sleeves (8) are rotatable at both ends of the barbell (3); The steel column (13) is provided with a scale for measuring distance, so that the two positioning arms (4) are kept at the same height and the anti-fall block (7) is blocked, thereby preventing the barbell (3) from falling through the fiber rope (6).

2. A barbell anti-fall device according to claim 1, characterized in that: The steel column (13) is provided with a plurality of groups of holes which are equidistantly distributed, and the hanger (2) is connected to the holes on the steel column (13) by bolts, and the position of the hanger (2) is adjusted by the holes on the steel column (13).

3. A barbell anti-fall device according to claim 1, characterized in that: The two ends of the U-shaped bottom frame (11) are detachably mounted with outwardly extending stabilizing columns (17), and the stabilizing columns (17) are inserted into the end surface of the U-shaped bottom frame (11) through rectangular plug columns (18). The contact area of ​​the U-shaped bottom frame (11) is increased through the stabilizing columns (17), thereby enhancing the supporting performance.

4. The barbell anti-fall device according to claim 1, characterized in that: The two triangular stabilizing frames (16) at the top of the support beam (12) are both equipped with B pulleys (9) for positioning the fiber rope (6). The fiber rope (6) is guided by the B pulley (9) to prevent the fiber rope (6) from escaping from the A pulley (5).

5. The barbell anti-fall device according to claim 1, characterized in that: The positioning arm (4) comprises a bracket (41) arranged on the support beam (12), and the bracket (41) is detachably mounted on the support beam (12); a positioning member (42) located between two steel columns (13) is mounted on the bracket (41); and grooves are provided on the opposite surfaces of the two steel columns (13); a spur rack (43) is provided in the groove of the steel column (13); and the positioning member (42) slides between the two steel columns (13) and contacts with the spur rack (43) for locking.

6. A barbell anti-fall device according to claim 5, characterized in that: The bracket (41) includes a U-shaped part (411) that slides on the support beam (12), and the positioning part (42) is installed on the inner side of the U-shaped part (411) by bolts. A triangular support arm (412) is installed on one side of the U-shaped part (411), and a support plate (413) for blocking the passage of the anti-fall block (7) is installed on one side of the triangular support arm (412), and a hole for the fiber rope (6) to pass through is provided on the support plate (413). Both end surfaces of the U-shaped part (411) are installed with slide rails (414), and the U-shaped part (411) is slidably connected to a support plate (415) by the slide rails (414), and the support plate (415) is connected to the slide rails (414) by bolts.

7. The barbell anti-fall device according to claim 5, characterized in that: The positioning member (42) comprises a rectangular shell (421) and a rotatable driving shaft (422) arranged inside the rectangular shell (421), and the driving shaft (422) extends from the top of the rectangular shell (421), and four rotatable and symmetrically distributed threaded columns (423) are arranged inside the rectangular shell (421), and the driving shaft (422) and the four threaded columns (423) are meshed with bevel gears for transmission, and a rotatable positioning member (422) is arranged in the middle of the driving shaft (422). The positioning column (424) is provided with a slidable rack block (425) at both ends of the positioning column (424), and every two threaded columns (423) are threadedly connected to a rack block (425), and the rack block (425) extends from the side of the rectangular shell (421), and the threaded column (423) is rotated by rotating the drive shaft (422), so that the rack block (425) extends from the side of the rectangular shell (421) and contacts the straight rack (43) in the groove of the steel column (13).

8. The barbell anti-fall device according to claim 1, characterized in that: The movable sleeve (8) comprises an end plate (81) and a connecting shaft (82) mounted on one end of the end plate (81); movable grooves (83) are provided at both ends of the barbell (3); the connecting shaft (82) is rotatably connected to the movable groove (83); and the fiber rope (6) is buckled on the circular ring of the end plate (81) through a safety buckle (84).

9. A barbell anti-fall device according to claim 8, characterized in that: The connecting shaft (82) comprises a shaft rod (85) and a trumpet-shaped shaft end (86) connected to the shaft rod (85); the surface of the shaft end (86) is wrapped with two half-separated positioning sleeves (87), and the shaft end (86) rotates in the positioning sleeve (87); the surface of the positioning sleeve (87) is provided with a positioning strip (88), and the inner wall of the movable groove (83) on the barbell (3) is provided with a wire groove for inserting the positioning strip (88); the diameter of the positioning sleeve (87) is the same as the diameter of the shaft rod (85); the positioning sleeve (87) is locked by bolts on the barbell (3), so that the connecting shaft (82) rotates at both ends of the barbell (3).

10. A barbell anti-falling method, characterized in that: Using a barbell anti-fall device as described in any one of claims 1 to 9, the specific operations are as follows: S1. Adjust the heights of the two positioning arms (4) as needed and lock them, and keep them at the same height. Then adjust the positions of the two hangers (2). Finally, hang the barbell (3) on the two hangers (2). Finally, connect the fiber rope (6) to the barbell (3), and then start training. S2. During training, after the barbell (3) is released from the hands, the barbell (3) drives the fiber rope (6) to fall rapidly, and the other end of the fiber rope (6) drives the anti-fall block (7) to rise rapidly and is blocked by the positioning arm (4). Under the pull of the fiber rope (6), the barbell (3) stops falling.

Images