Intelligent adjusting system for bench press instrument

Abstract

The intelligent adjusting system comprises a base, two symmetrical side block plates are arranged on the left side and the right side of the base, a winding cavity is formed in the base, two clamping cavities are formed in the left end wall and the right end wall of the winding cavity, balance cavities are formed in the side block plates, a bench press cavity is formed in the side block plates, and a balance cavity is formed in the end wall of the side, away from the symmetry center, of the bench press cavity. A bearing cavity is formed in the front end wall of the balance cavity, a containing cavity is formed in the rear end wall of the balance cavity, a pushing block cavity is formed in the rear end wall of the containing cavity, training mechanisms are arranged in the two side block plates, and a transmission mechanism and an adjusting mechanism are arranged between the base and the two side block plates. The transmission mechanism can prevent secondary injury caused by force release or strain during training, the training mechanism can adjust the training difficulty, and the adjusting mechanism can adjust the training posture according to the needs of trainees.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent adjustment systems, and in particular to an intelligent adjustment system for a bench press apparatus. Background Art

[0002] With the increase of life pressure and the acceleration of life pace, health has become a problem that people pay more and more attention to, and health problems have indeed become obstacles in people's life and study. In order to maintain good health, fitness has become an inevitable choice. Fitness is conducive to strengthening physical fitness, preventing and curing diseases. Fitness exercises accelerate blood circulation and clean harmful substances in the excretion system, which is conducive to a good mood and a happy spirit. However, due to improper protection during the fitness process, it is easy to be harmed by fitness equipment. In order to solve this problem, the present invention provides an inflatable safety vertical bench press fitness equipment, which can fully protect people who are using the equipment through an air pump, a safety button and a positioning pin.

[0003] Patent application CN201710395169.5 discloses an inflatable safety bench press fitness equipment, including a barbell plate, a barbell support frame, a barbell bar, a barbell, a locking sleeve, a barbell locking nut, a positioning pin hole, a wheel, an air pump, a base plate, a first bench press pad support device, a first bench press pad, a slide, a positioning pin, a safety button, a second bench press pad support device, a second bench press pad, a bench press pad connecting device, a bench press pad fastening bolt, a gasket, a bench press pad locking nut, a bench press pad, a bench press pad bracket, a bench press pad support shell, an air inlet, a bench press pad The plate support piston frame, air cavity, air outlet hole, safety button piston, safety hole, positioning pin anti-skid pattern, rubber massage needle, barbell anti-skid pattern, characterized in that: the barbell is composed of a barbell plate, a barbell support frame, a barbell rod, a locking sleeve, and a barbell locking nut. The locking sleeve is connected to the barbell plate, the barbell plate is connected to the barbell locking nut, the barbell rod is connected to the barbell support frame, and the barbell rod passes through the center of the locking sleeve, the barbell plate and the barbell locking nut. However, the equipment cannot adjust the size of the bench press training force, and the training intensity can only be changed by manually replacing the barbell plate, which is inconvenient to use. Summary of the invention

[0004] To solve the above problems, the present invention is implemented through the following technical solutions:

[0005] The intelligent adjustment system for a bench press apparatus comprises a base, wherein two symmetrical side blocks are provided on the left and right sides of the base, a winding cavity is provided in the base, two clamping cavities are provided in the left and right end walls of the winding cavity, a balancing cavity is provided in the side block plate, a bench press cavity is provided in the side block plate, a balancing cavity is provided in the end wall of the bench press cavity away from the side of the symmetry center, a load-bearing cavity is provided in the front end wall of the balancing cavity, a placement cavity is provided in the rear end wall of the balancing cavity, a pushing block cavity is provided in the rear end wall of the placement cavity, a belt cavity is provided in the lower end wall of the balancing cavity, and a lower side cavity is provided in the lower end wall of the belt cavity, a back plate cavity with an upper end opening is provided in the base, a bevel gear cavity is provided in the rear end wall of the back plate cavity, a training mechanism is provided in the two side blocks, a transmission mechanism and an adjustment mechanism are provided between the base and the two side blocks, the transmission mechanism can prevent secondary injuries caused by loss of force or strain during training, the training mechanism can adjust the training difficulty, and the adjustment mechanism can adjust the training posture according to the needs of the trainees.

[0006] Preferably, the transmission mechanism includes a bench press block slidably connected in the bench press cavity, a balance spring is connected between the bench press block and the end wall of the bench press cavity, the elastic force of the balance spring is just equal to the gravity of the bench press block, an adjustment motor is provided in the bench press block, an adjustment cavity is provided in the bench press block, the adjustment motor is powered and connected to a threaded shaft with one end located in the adjustment cavity, a threaded block is slidably connected in the adjustment cavity, the threaded block is threadedly connected to the threaded shaft, a bench press rod is fixedly connected between the two threaded blocks, and the end walls of the two balance cavities away from the symmetry center are rotatably connected with a thread penetrating the clamping cavity, A balancing shaft of the winding chamber, wherein the balancing shaft is fixedly connected with a balancing wheel located in the balancing chamber, two balancing wheels are wound with two bench push ropes having one end connected to two bench push blocks respectively, the balancing shaft is fixedly connected with a fixed wheel located in the clamping chamber, six groups of fixed blocks are evenly distributed on the end wall of the clamping chamber, six groups of centrifugal chambers are evenly distributed on the fixed wheel, the left and right end walls of the centrifugal chamber are hinged with a centrifugal clamping block having one end capable of contacting and clamping with the fixed block, a centrifugal spring is connected between the centrifugal clamping block and the end wall of the centrifugal chamber, and the balancing shaft is fixedly connected with a winding wheel located in the winding chamber.

[0007] Preferably, the training mechanism includes a power motor fixedly connected to the lower end wall of the belt cavity, the power motor is connected to a power shaft, the power shaft is fixedly connected to a power wheel, the lower end wall of the belt cavity is rotatably connected to a second threaded shaft and a first threaded shaft with one end respectively located in the load-bearing cavity and the push block cavity, the first threaded shaft is fixedly connected to a driven wheel located in the belt cavity, the second threaded shaft is fixedly connected to the first driven wheel located in the belt cavity, a transmission belt is connected between the first driven wheel and the driven wheel and the power wheel, five groups of permanent magnets are evenly distributed in the end wall of the load-bearing cavity on one side away from the placement cavity, five groups of permanent magnets are evenly distributed in the end wall of the push block cavity on one side away from the placement cavity, the load-bearing cavity is slidably connected to a push block, the push block cavity is slidably connected to a push block, there is a certain distance between the upper and lower positions of the two push blocks, a magnetic sliding cavity is provided in the push block, and a magnetic plate is slidably connected in the magnetic sliding cavity, when the push block moves to a horizontal position with the permanent magnet, the The permanent magnet can generate repulsive force on the magnetic plate. When one group of permanent magnets generates repulsive force on the magnetic plate corresponding to it, the other group of permanent magnets cannot generate repulsive force on the magnetic plate corresponding to it. A reset spring is connected between the magnetic plate and the end wall of the magnetic sliding cavity. The magnetic plate in the load-bearing cavity is fixedly connected with a push rod. The magnetic plate in the push block cavity is fixedly connected with the push rod with one end that can be located in the placement cavity. The push rod is fixedly connected with a push plate. Five groups of placement plates evenly distributed are fixedly connected between the left and right end walls of the placement cavity. A weight block is placed on the placement plate. A load-bearing block is slidably connected in the balance cavity. A through cavity evenly distributed and corresponding to the placement plate is provided in the load-bearing block. The through cavity runs through from front to back. The push plate in the push block cavity can push the weight block placed on the placement plate into the through cavity. The push plate in the load-bearing cavity can push the weight block in the through cavity back to the placement plate. The winding wheel is wound with two tension ropes whose ends are respectively connected to two load-bearing blocks.

[0008] Preferably, the adjustment mechanism includes a driving shaft having one end located in the lower cavity and being powered by the power motor, the driving shaft being fixedly connected to a driving wheel, the upper end wall of the bevel gear cavity being rotatably connected to a bevel wheel shaft, the bevel wheel shaft being fixedly connected to a pulley, a belt being connected between the pulley and the two driving wheels, the rear end wall of the bevel gear cavity being rotatably connected to a threaded rod having one end located in the back plate cavity, the bevel wheel shaft being fixedly connected to a bevel wheel, the threaded rod being fixedly connected to a bevel gear located in the bevel gear cavity, the bevel wheel meshing with the bevel gear, a sliding threaded plate being slidably connected in the back plate cavity, the sliding threaded plate being threadedly connected to the threaded rod, a back plate being hingedly installed on the upper end surface of the base, and a hinged rod being hinged between the sliding threaded plate and the back plate.

[0009] The present invention provides an intelligent adjustment system for a bench press apparatus, which has the following beneficial effects: the present invention is convenient for different users to use by providing a threaded block that can adjust the upper and lower positions; the balance wheel around which two bench push ropes are wound is used to ensure that the bench press rod can always remain horizontal, and the bench press rod will not tilt and be dangerous due to the inconsistency in the strength of the left and right hands; the risk of being smashed is avoided by providing a fixed wheel that can be locked when the force is lost; the present invention is capable of adjusting the intensity of exercise by providing a training mechanism that can adjust the intensity of exercise, and different exercise intensities can be achieved by providing a load-bearing block in the training mechanism that can increase or decrease the number of weight blocks placed in the through cavity according to user needs; the present invention is capable of adapting to different usage needs by providing an adjustment mechanism, and providing a backrest for adjusting the exercise posture in the adjustment mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of an intelligent adjustment system for a bench press apparatus of the present invention;

[0011] Figure 2 It is a schematic diagram of the internal structure of an intelligent adjustment system for a bench press apparatus of the present invention;

[0012] Figure 3 The present invention Figure 2 Schematic diagram of the structure at AA in the middle;

[0013] Figure 4 The present invention Figure 2 Schematic diagram of the structure at the middle BB;

[0014] Figure 5 The present invention Figure 3 Schematic diagram of the structure at CC;

[0015] Figure 6 It is a structural schematic diagram of the plate cavity of the present invention;

[0016] Figure 7 It is a partial enlarged schematic diagram of the present invention 3;

[0017] Figure 8 It is a partial enlarged schematic diagram of the present invention 7;

[0018] In the figure:

[0019] 10. Base; 11. Side block plate; 12. Winding cavity; 13. Clamping cavity; 14. Balance cavity; 15. Balance spring; 16. Bench press cavity; 17. Load-bearing cavity; 18. Placement cavity; 19. Push block cavity; 20. Belt cavity; 21. Lower cavity; 22. Back plate cavity; 23. Bevel gear cavity; 24. Winding wheel; 25. Balance shaft; 26. Balance wheel; 27. Fixed wheel; 28. Fixed block; 29. ​​Centrifugal cavity; 30. Centrifugal clamping block; 31. Centrifugal spring; 32. Bench press block; 33. Adjustment motor; 34. Adjustment cavity; 35. Threaded shaft; 36. Threaded block; 37. Bench press rod; 38. Bench press rope; 39. Pull rope; 40. Load-bearing block; 41. Through cavity; 42, power motor; 43, power shaft; 44, power wheel; 45, driven wheel; 46, first threaded shaft; 47, second threaded shaft; 48, push block; 49, magnetic sliding cavity; 50, magnetic plate; 51, reset spring; 52, push rod; 53, push plate; 54, permanent magnet; 55, placement plate; 56, weight block; 57, cone wheel shaft; 58, pulley; 59, belt; 60, cone wheel; 61, bevel gear; 62, threaded rod; 63, sliding threaded plate; 64, hinged rod; 65, support plate; 66, drive shaft; 67, drive wheel; 68, first driven wheel; 69, transmission belt; 70, adjustment mechanism; 71, transmission mechanism; 72, training mechanism. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention;

[0021] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only simplified descriptions for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] See also Figure 1-Figure 8The present invention provides a technical solution: an intelligent adjustment system for a bench press apparatus, comprising a base 10, wherein two symmetrical side block plates 11 are provided on the left and right sides of the base 10, a winding cavity 12 is provided in the base 10, and two clamping cavities 13 are provided in the left and right end walls of the winding cavity 12, a balancing cavity 14 is provided in the side block plate 11, a bench press cavity 16 is provided in the side block plate 11, and a balancing cavity 14 is provided in the end wall of the bench press cavity 16 away from the side of the symmetry center, a load-bearing cavity 17 is provided in the front end wall of the balancing cavity 14, a placement cavity 18 is provided in the rear end wall of the balancing cavity 14, and a push block cavity 19 is provided in the rear end wall of the placement cavity 18, A belt cavity 20 is provided in the lower end wall of the balance cavity 14, a lower side cavity 21 is provided in the lower end wall of the belt cavity 20, a back plate cavity 22 with an upper opening is provided in the base 10, a bevel gear cavity 23 is provided in the rear end wall of the back plate cavity 22, a training mechanism 72 is provided in the two side block plates 11, a transmission mechanism 71 and an adjustment mechanism 70 are provided between the base 10 and the two side block plates 11, the transmission mechanism can prevent secondary injuries due to loss of force or strain during training, the training mechanism can adjust the difficulty of training, and the adjustment mechanism can adjust the training posture according to the needs of the trainees.

[0023] Wherein, the transmission mechanism 71 includes a bench press block 32 slidably connected in the bench press cavity 16, a balance spring 15 is connected between the bench press block 32 and the end wall of the bench press cavity 16, the elastic force of the balance spring 15 is just equal to the gravity of the bench press block 32, an adjustment motor 33 is provided in the bench press block 32, an adjustment cavity 34 is provided in the bench press block 32, the adjustment motor 33 is powered and connected to a threaded shaft 35 with one end located in the adjustment cavity 34, a threaded block 36 is slidably connected in the adjustment cavity 34, the threaded block 36 is threadedly connected to the threaded shaft 35, a bench press rod 37 is fixedly connected between the two threaded blocks 36, and the end walls of the two balance cavities 14 away from the side of the symmetry center are rotatably connected with a balance shaft 25 that penetrates the clamping cavity 13 and the winding cavity 12, the balance shaft 25 is fixedly connected to a balance wheel 26 located in the balance cavity 14, and the two The balancing wheel 26 is wound with two bench push ropes 38, one end of which is respectively connected to two bench push blocks 32. The balancing shaft 25 is fixedly connected with a fixed wheel 27 located in the clamping cavity 13. Six groups of fixed blocks 28 are evenly distributed on the end wall of the clamping cavity 13. Six groups of centrifugal cavities 29 are evenly distributed on the fixed wheel 27. The left and right end walls of the centrifugal cavity 29 are hinged with a centrifugal clamping block 30, one end of which can contact and be clamped with the fixed block 28. A centrifugal spring 31 is connected between the centrifugal clamping block 30 and the end wall of the centrifugal cavity 29. The balancing shaft 25 is fixedly connected with the winding wheel 24 located in the winding cavity 12. The bench press exercise is started, thereby pulling the bench push rope 38, thereby driving the balancing wheel 26 to rotate through the bench push rope 38, thereby driving the balancing shaft 25 to rotate, thereby driving the winding wheel 24 to rotate, thereby winding the tension rope 39, thereby lifting the load-bearing block 40.

[0024] The training mechanism 72 includes a power motor 42 fixedly connected to the lower end wall of the belt cavity 20, the power motor 42 is connected to a power shaft 43, the power shaft 43 is fixedly connected to a power wheel 44, the lower end wall of the belt cavity 20 is rotatably connected to a second threaded shaft 47 and a first threaded shaft 46, one end of which is respectively located in the load-bearing cavity 17 and the push block cavity 19, the first threaded shaft 46 is fixedly connected to a driven wheel 45 located in the belt cavity 20, the second threaded shaft 47 is fixedly connected to a first driven wheel 68 located in the belt cavity 20, a transmission belt 69 is connected between the first driven wheel 68 and the driven wheel 45 and the power wheel 44, the Five groups of permanent magnets 54 are evenly distributed in the end wall of the side of the load-bearing cavity 17 away from the placement cavity 18, and five groups of permanent magnets 54 are evenly distributed in the end wall of the side of the push block cavity 19 away from the placement cavity 18. The load-bearing cavity 17 is slidably connected with a push block 48, and the push block cavity 19 is slidably connected with a push block 48. There is a certain distance between the upper and lower positions of the two push blocks 48. A magnetic sliding cavity 49 is provided in the push block 48, and a magnetic plate 50 is slidably connected in the magnetic sliding cavity 49. When the push block 48 moves to a horizontal position with the permanent magnet 54, the permanent magnet 54 can generate a repulsive force on the magnetic plate 50. When one group of permanent magnets 54 generates a repulsive force on its corresponding magnetic plate 50 , the other group of permanent magnets 54 cannot generate repulsive force on the corresponding magnetic plate 50, a reset spring 51 is connected between the magnetic plate 50 and the end wall of the magnetic sliding cavity 49, the magnetic plate 50 in the load-bearing cavity 17 is fixedly connected with a push rod 52, the magnetic plate 50 in the push block cavity 19 is fixedly connected with one end of the push rod 52 that can be located in the placement cavity 18, the push rod 52 is fixedly connected with a push plate 53, five groups of placement plates 55 evenly distributed are fixedly connected between the left and right end walls of the placement cavity 18, a weight block 56 is placed on the placement plate 55, a load-bearing block 40 is slidably connected in the balance cavity 14, and the load-bearing block 40 is provided with a uniformly distributed and parallel to the placement The plate 55 corresponds to the through cavity 41, and the through cavity 41 runs through from front to back. The push plate 53 in the push block cavity 19 can push the weight block 56 placed on the placement plate 55 into the through cavity 41, and the push plate 53 in the load-bearing cavity 17 can push the weight block 56 in the through cavity 41 back to the placement plate 55. The winding wheel 24 is wound with two tension ropes 39 with one end respectively connected to the two load-bearing blocks 40. When the push block 48 in the push block cavity 19 moves to the corresponding position of the permanent magnet 54, the permanent magnet 54 generates a repulsive force to push the magnetic plate 50, thereby compressing the reset spring 51, thereby pushing the weight block 56 placed on the placement plate 55 into the through cavity 41.

[0025] The adjustment mechanism 70 includes the power motor 42 being connected to a drive shaft 66 having one end located in the lower cavity 21, the drive shaft 66 being fixedly connected to a drive wheel 67, the upper end wall of the bevel gear cavity 23 being rotatably connected to a bevel wheel shaft 57, the bevel wheel shaft 57 being fixedly connected to a pulley 58, a belt 59 being connected between the pulley 58 and the two drive wheels 67, the rear end wall of the bevel gear cavity 23 being rotatably connected to a threaded rod 62 having one end located in the back plate cavity 22, the bevel wheel shaft 57 being fixedly connected to a bevel wheel 60, the threaded rod 62 ... The rod 62 is fixedly connected to the bevel gear 61 located in the bevel gear cavity 23, the bevel wheel 60 is meshed with the bevel gear 61, a sliding threaded plate 63 is slidably connected in the back plate cavity 22, the sliding threaded plate 63 is threadedly connected to the threaded rod 62, a back plate 65 is hingedly installed on the upper end surface of the base 10, and a hinged rod 64 is hinged between the sliding threaded plate 63 and the back plate 65. When the threaded rod 62 rotates, the sliding threaded plate 63 is driven to move, thereby the hinged rod 64 rotates, and the back plate 65 is deflected, thereby adjusting the bench press posture.

[0026] The intelligent adjustment system for a bench press apparatus of the present invention has the following working process:

[0027] In the initial state, the load-bearing block 40 is at the lowest position, a weight block 56 is placed on the placement plate 55, the weight block 56 in the placement cavity 18 can enter the through cavity 41, the push block 48 is at the uppermost position, and the bench press block 32 is at the lowermost position.

[0028] When starting to exercise, the user lies on the backrest 65 and starts the adjustment motor 33 to output power, thereby driving the threaded shaft 35 to rotate, thereby driving the threaded block 36 to move, thereby driving the bench press rod 37 to move, and thus adjusting the bench press rod 37 to a suitable position. At this time, the user pushes the bench press rod 37 upward with both hands and starts bench press exercise, thereby pulling the bench press rope 38, thereby driving the balance wheel 26 to rotate through the bench press rope 38, thereby driving the balance shaft 25 to rotate, thereby driving the winding wheel 24 to rotate, thereby winding the tension rope 39, and thus lifting the load-bearing block 40. When it is necessary to increase the strength of the bench press, the bench press rod 37 is returned to the initial state, and the power motor 42 is started to output power, thereby driving the power shaft 43 to rotate, thereby driving the power wheel 44 to rotate, thereby driving the first driven wheel 68 and the driven wheel 45 to rotate through the transmission belt 69, thereby driving the second threaded shaft 47 and the first threaded shaft 46 to rotate, thereby driving the two push blocks 48. Move downward. Since there is no weight block 56 in the through cavity 41, a weight block 56 is placed on the placement plate 55. When the push block 48 in the push block cavity 19 moves to the corresponding position of the permanent magnet 54, the permanent magnet 54 generates a repulsive force to push the magnetic plate 50, thereby compressing the reset spring 51, thereby pushing the weight block 56 placed on the placement plate 55 into the through cavity 41. Whenever the push block 48 in the push block cavity 19 is in the same horizontal plane with its corresponding permanent magnet 54, it will push the corresponding weight block 56 on the placement plate 55 into the corresponding through cavity 41, thereby increasing the weight of the load-bearing block 40, thereby increasing the bench press force. When it is necessary to reduce the bench press force, the bench press rod 37 is returned to the initial position, and the power motor 42 is started to output power in the reverse direction, thereby driving the two push blocks 48 to move upward. At this time, the push block 48 in the load-bearing cavity 17 pushes the weight block 56 in the through cavity 41 back to the placement plate 55, thereby reducing the weight of the load-bearing block 40, thereby reducing the thrust;

[0029] When the bench press posture needs to be adjusted, the power motor 42 is started to output power, thereby driving the drive shaft 66 to rotate, thereby driving the drive wheel 67 to rotate, thereby driving the pulley 58 to rotate through the belt 59, thereby driving the bevel wheel shaft 57 to rotate, thereby driving the bevel wheel 60 to rotate, thereby driving the bevel gear 61 to rotate, thereby driving the threaded rod 62 to rotate, thereby driving the sliding threaded plate 63 to move, thereby rotating the hinge rod 64, thereby deflecting the back plate 65, thereby adjusting the bench press posture;

[0030] When the user is exhausted or has a muscle strain, the user cannot support the bench press rod 37, so the bench press rod 37 drops rapidly under the gravity of the load-bearing block 40, thereby driving the balance wheel 26 to rotate rapidly, thereby driving the balance shaft 25 to rotate rapidly, and thereby driving the fixed wheel 27 to rotate rapidly, so that the centrifugal block 30 is deflected under the action of centrifugal force, thereby stretching the centrifugal spring 31, causing the centrifugal block 30 to contact the fixed block 28 and clamp the fixed wheel 27, so that the fixed wheel 27 stops rotating, so that the bench press rope 38 no longer pulls the bench press block 32, avoiding danger.

[0031] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent adjustment system for a bench press apparatus, comprising a base (10), characterized in that: Two symmetrical side blocks (11) are provided on the left and right sides of the base (10); a winding cavity (12) is provided in the base (10); two clamping cavities (13) are provided in the left and right end walls of the winding cavity (12); a balancing cavity (14) is provided in the side block plate (11); a bench press cavity (16) is provided in the side block plate (11); a balancing cavity (14) is provided in the end wall of the bench press cavity (16) away from the symmetry center; a load-bearing cavity (17) is provided in the front end wall of the balancing cavity (14); a placement cavity (18) is provided in the rear end wall of the balancing cavity (14); a pushing cavity (19) is provided in the rear end wall of the placement cavity (18); a lower end wall of the balancing cavity (14) is provided A belt cavity (20) is provided, a lower side cavity (21) is provided in the lower end wall of the belt cavity (20), a support plate cavity (22) with an upper end opening is provided in the base (10), a bevel gear cavity (23) is provided in the rear end wall of the support plate cavity (22), a training mechanism (72) is provided in the two side blocks (11), a transmission mechanism (71) and an adjustment mechanism (70) are provided between the base (10) and the two side blocks (11), the transmission mechanism can prevent secondary injuries caused by loss of force or strain during training, the training mechanism can adjust the difficulty of training, and the adjustment mechanism can adjust the training posture according to the needs of the trainees.

2. The intelligent adjustment system for a bench press apparatus according to claim 1, characterized in that: The transmission mechanism (71) comprises a bench press block (32) slidably connected in the bench press cavity (16); a balance spring (15) is connected between the bench press block (32) and the end wall of the bench press cavity (16); the elastic force of the balance spring (15) is just equal to the weight of the bench press block (32); an adjustment motor (33) is arranged in the bench press block (32); an adjustment cavity (34) is arranged in the bench press block (32); the adjustment motor (33) is kinetically connected to a threaded shaft (35) having one end located in the adjustment cavity (34); and a slidable shaft (35) is arranged in the adjustment cavity (34). A threaded block (36) is provided, the threaded block (36) is threadedly connected to the threaded shaft (35), a bench press rod (37) is fixedly connected between the two threaded blocks (36), a balance shaft (25) penetrating the clamping cavity (13) and the winding cavity (12) is rotatably connected to the end wall of the two balance chambers (14) away from the symmetry center, the balance shaft (25) is fixedly connected to a balance wheel (26) located in the balance chamber (14), and the two balance wheels (26) are wound with two bench press ropes (38) one end of which is respectively connected to the two bench press blocks (32).

3. The intelligent adjustment system for a bench press apparatus according to claim 2, characterized in that: The balancing shaft (25) is fixedly connected to a fixed wheel (27) located in the clamping cavity (13); six groups of fixed blocks (28) are evenly distributed on the end wall of the clamping cavity (13); six groups of centrifugal cavities (29) are evenly distributed on the fixed wheel (27); the left and right end walls of the centrifugal cavity (29) are hinged with a centrifugal clamping block (30) at one end of which can contact and clamp with the fixed block (28); a centrifugal spring (31) is connected between the centrifugal clamping block (30) and the end wall of the centrifugal cavity (29); and the balancing shaft (25) is fixedly connected to a winding wheel (24) located in the winding cavity (12).

4. The intelligent adjustment system for a bench press apparatus according to claim 3, characterized in that: The training mechanism (72) comprises a power motor (42) fixedly connected to the lower end wall of the belt cavity (20), the power motor (42) is rotatably connected to a power shaft (43), the power shaft (43) is fixedly connected to a power wheel (44), the lower end wall of the belt cavity (20) is rotatably connected to a second threaded shaft (47) and a first threaded shaft (46) whose ends are respectively located in the load-bearing cavity (17) and the push block cavity (19), the first threaded shaft (46) is fixedly connected to a driven wheel (45) located in the belt cavity (20), the second threaded shaft (47) is fixedly connected to a first driven wheel (68) located in the belt cavity (20), the first driven wheel A transmission belt (69) is connected between the driven wheel (45) and the power wheel (44); five groups of permanent magnets (54) are evenly distributed in the end wall of the load-bearing cavity (17) away from the placement cavity (18); five groups of permanent magnets (54) are evenly distributed in the end wall of the push block cavity (19) away from the placement cavity (18); the load-bearing cavity (17) is slidably connected with a push block (48); the push block cavity (19) is slidably connected with a push block (48); there is a certain distance between the upper and lower positions of the two push blocks (48); a magnetic sliding cavity (49) is provided in the push block (48); a magnetic plate (50) is slidably connected in the magnetic sliding cavity (49).

5. The intelligent adjustment system for a bench press apparatus according to claim 4, characterized in that: A return spring (51) is connected between the magnetic plate (50) and the end wall of the magnetic sliding cavity (49); the magnetic plate (50) in the load-bearing cavity (17) is fixedly connected to a push rod (52); the magnetic plate (50) in the push block cavity (19) is fixedly connected to the push rod (52) having one end capable of being located in the placement cavity (18); and the push rod (52) is fixedly connected to a push plate (53).

6. The intelligent adjustment system for a bench press apparatus according to claim 5, characterized in that: Five groups of placement plates (55) are evenly distributed and fixedly connected between the left and right end walls of the placement cavity (18), and weight blocks (56) are placed on the placement plates (55). A load-bearing block (40) is slidably connected in the balance cavity (14), and evenly distributed through cavities (41) corresponding to the placement plates (55) are provided in the load-bearing block (40), and the through cavities (41) penetrate from front to back.

7. The intelligent adjustment system for a bench press apparatus according to claim 6, characterized in that: The push plate (53) in the pushing block cavity (19) can push the weight block (56) placed on the placement plate (55) into the through cavity (41), and the push plate (53) in the load-bearing cavity (17) can push the weight block (56) in the through cavity (41) back onto the placement plate (55). The winding wheel (24) is wound with two tension ropes (39) one end of which is respectively connected to two load-bearing blocks (40).

8. The intelligent adjustment system for a bench press apparatus according to claim 4, characterized in that: The adjustment mechanism (70) includes a driving shaft (66) having one end located in the lower cavity (21) and connected to the power motor (42); the driving shaft (66) is fixedly connected to a driving wheel (67); the upper end wall of the bevel gear cavity (23) is rotatably connected to a bevel wheel shaft (57); the bevel wheel shaft (57) is fixedly connected to a belt pulley (58); and a belt (59) is connected between the belt pulley (58) and the two driving wheels (67).

9. The intelligent adjustment system for a bench press apparatus according to claim 8, characterized in that: The rear end wall of the bevel gear cavity (23) is rotatably connected to a threaded rod (62) whose end is located in the support plate cavity (22); the bevel wheel shaft (57) is fixedly connected to a bevel wheel (60); the threaded rod (62) is fixedly connected to a bevel gear (61) located in the bevel gear cavity (23); the bevel wheel (60) is meshed with the bevel gear (61); a sliding threaded plate (63) is slidably connected in the support plate cavity (22); the sliding threaded plate (63) is threadedly connected to the threaded rod (62); a support plate (65) is hingedly installed on the upper end surface of the base (10); a hinged rod (64) is hinged between the sliding threaded plate (63) and the support plate (65).

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