Adjustable trainer

Abstract

The utility model discloses an adjustable trainer which comprises a base, a first stand column, a first adjustable buffering mechanism, a first transmission shaft, a synchronous transmission mechanism, a second adjustable buffering mechanism, a second stand column, a second transmission shaft and the like. The second adjusting head or the third adjusting head is driven by the wrench to rotate, so that the first adjustable buffering mechanism and the second adjustable buffering mechanism can be driven to synchronously rotate together to form a needed angle, the transverse rod can integrally move vertically or longitudinally, and the requirement for using the transverse rod at a high position or a low position can be met. The convenience in use is also improved; when the first adjustable buffering mechanism and the second adjustable buffering mechanism are in the vertical state, the overall height of the corresponding cross rod can be finely adjusted conveniently, and therefore the requirements of different users for ligament stretching can be better met; and when the adjustable buffer mechanism I and the adjustable buffer mechanism II are in a horizontal state, the cross rod can be conveniently far away from the upright post I and the upright post II, so that the user is ensured not to be influenced during bodybuilding training.

Description

Technical field:

[0001] The utility model relates to the technical field of sports equipment, in particular to an adjustable training device. Background technology:

[0002] With the progress of society, people's health concepts have improved, and modern humans' sports concepts have become stronger and stronger. Among many sports, aerobics is undoubtedly a simple and efficient one. However, aerobics training requires the trainee's own body flexibility to be good. However, it is difficult to make a big difference in the training of human flexibility by just bending the waist and moving the hands and feet. The existing flexibility trainer is not easy to adjust and use, so it is difficult to meet the training needs of different users, and it also cannot meet the needs of different users for different training intensities. Utility model content:

[0003] The purpose of the present invention is to provide an adjustable training device in order to solve the above problems, thereby solving the problem that the existing toughness training device is not easy to adjust and use, thus it is difficult to meet the training needs of different users, and also cannot meet the needs of different users for different training intensities.

[0004] In order to solve the above problems, the utility model provides a technical solution: an adjustable training device, the innovation point of which is that it includes a base, a column, an adjustable buffer mechanism, a transmission shaft, a synchronous transmission mechanism, a cross bar, an adjustable stretching mechanism, an adjustable buffer mechanism, a column and a transmission shaft; the upper left side of the base is fixedly connected with the column one, and the upper right side of the base is fixedly connected with the column two; the transmission shaft one is movably connected to the upper side of the column one, the right end of the transmission shaft one is fixedly connected with the adjustable buffer mechanism one, and the outer side of the transmission shaft one is connected to the left side of the synchronous transmission mechanism; the transmission shaft two is movably connected to the upper side of the column two, the left end of the transmission shaft two is fixedly connected with the adjustable buffer mechanism two, and the outer side of the transmission shaft two is connected to the right side of the synchronous transmission mechanism; the left and right sides of the cross bar are respectively connected to the moving parts of the adjustable buffer mechanism one and the adjustable buffer mechanism two, and the left and right sides of the cross bar are provided with adjustable stretching mechanisms.

[0005] Preferably, the structure of the adjustable buffer mechanism 2 is consistent with that of the adjustable buffer mechanism 1 and they are symmetrically arranged. The specific structure of the adjustable buffer mechanism 1 includes a movable seat, an adjusting head 1, a screw rod 1, a guide groove, a nut block 1, a spring 1, a connecting seat, a connecting hole, a locking screw, a spring 2 and a nut block 2; a guide groove is provided on the lower right side of the movable seat; the screw rod 1 is movably connected to the center of the guide groove, and the upper end of the screw rod 1 is fixedly connected to the adjusting head 1; the outer part of the nut block 1 is movably connected to the upper side of the guide groove in a transverse manner, and the threaded hole provided in the center of the nut block 1 is connected to the screw rod 1; The left side of the connecting seat is located at the lower side of the nut block, and the left side of the connecting seat is movably connected to the inside of the guide groove, a spring is provided between the upper left side of the connecting seat and the bottom surface of the nut block one, a connecting hole is opened in the center of the right side of the connecting seat, and a locking screw is movably connected in the threaded hole arranged at the lower side of the connecting hole, and the inner end of the locking screw is connected to the outside of the cross bar; the outside of the nut block two is laterally movably connected to the lower side of the guide groove, a spring is provided between the top surface of the nut block two and the lower left side of the connecting seat, and the threaded hole arranged in the center of the nut block two is connected to the screw one.

[0006] Preferably, a hexagonal hole is provided in the center of an outer side of the adjusting head.

[0007] Preferably, the guide groove is a T-shaped guide groove.

[0008] Preferably, the specific structure of the synchronous transmission mechanism includes adjusting head two, worm wheel one, worm one, connecting shaft one, pulley one, synchronous belt, pulley two, connecting shaft two, worm wheel two, worm two and adjusting head three; the central interior of the worm wheel one is fixedly connected to the central exterior of the transmission shaft one; the connecting shaft one is movably connected to the interior of the column one, the upper exterior of the connecting shaft one is fixedly connected with worm wheel one, and the worm one is connected to the worm wheel one, the top of the connecting shaft one is fixedly connected with adjusting head two, and the lower exterior of the connecting shaft is fixedly connected with pulley one; the central interior of the worm wheel two is fixedly connected to the central exterior of the transmission shaft two; the connecting shaft two is movably connected to the interior of the column two, the upper exterior of the connecting shaft two is fixedly connected with worm wheel two, and the worm two is connected to worm wheel two, the top of the connecting shaft two is fixedly connected with adjusting head three, and the lower exterior of the connecting shaft two is fixedly connected with pulley two; the pulley two is connected to pulley one through a synchronous belt.

[0009] Preferably, a hexagonal hole is provided in the center of the upper side of the adjusting head 2 and the adjusting head 3.

[0010] Preferably, the specific structure of the adjustable stretching mechanism includes an adjusting head four, a driving gear, a driven gear, a screw rod three, a slider, a pull rope, a movable block, a pulley, a spring three, a guide hole cavity, a handle and a guide wheel; the adjusting head four is movably connected to the interior of the upper left side of the cross bar, and the lower end of the adjusting head four is fixedly connected to the driving gear; the guide hole cavity is arranged horizontally inside the cross bar, and the lower left side of the guide hole cavity is movably connected to several guide wheels; the screw rod three is movably connected to the upper side of the guide hole cavity, and the left end of the screw rod three is fixedly connected to the driven gear, and the driven gear is connected to the driving gear; the outside of the slider is movably connected to the left side of the guide hole cavity in a horizontal manner, and the threaded hole arranged on the upper side of the slider is connected to the screw rod three; the movable block is movably connected to the right side of the guide hole cavity, and the pulley is movably connected to the center of the left side of the movable block, and a spring three is arranged between the left side surface of the movable block and the right side surface of the slider; one end of the pull rope is fixedly connected to the upper left side of the guide hole cavity, and the other side of the pull rope is fixedly connected to the center of the top of the handle through the pulley and the guide wheel in sequence.

[0011] Preferably, a hexagonal hole is provided in the center of the upper side of the adjusting head.

[0012] Preferably, an anti-slip pad is provided on the top surface of the base.

[0013] Beneficial effects of the utility model:

[0014] (1) The utility model has a reasonable and simple structure, low production cost and easy installation. Here, the adjusting head 2 or the adjusting head 3 is driven to rotate by a wrench, so that the adjustable buffer mechanism 1 and the adjustable buffer mechanism 2 can be driven to rotate synchronously to a required angle, thereby facilitating the overall vertical or longitudinal movement of the cross bar. In addition, it can also meet the needs of using the cross bar in a high or low position, thereby improving the convenience during use.

[0015] (2) The adjustable buffer mechanism 1 and the adjustable buffer mechanism 2 provided in the utility model, when the adjustable buffer mechanism 1 and the adjustable buffer mechanism 2 are in a vertical state, it is convenient to fine-tune the height of the corresponding cross bar as a whole, so as to better meet the ligament stretching needs of different users; and when the adjustable buffer mechanism 1 and the adjustable buffer mechanism 2 are in a horizontal state, it is convenient to keep the cross bar away from the upright column 1 and the upright column 2, thereby ensuring that the user will not be affected during bodybuilding training.

[0016] (3) The adjustable stretching mechanism provided in the present invention facilitates the user to train by pulling out the pull rope with the handle, and the rotating adjustment head four can drive the active gear to rotate, and the rotation of the active gear drives the screw rod three to rotate through the driven gear, and the rotation of the screw rod three causes the slider to move laterally, so that the preload force of the spring three can be adjusted, and the pulling force of the pull rope can also be adjusted, thereby meeting the needs of different intensity training. Description of the drawings:

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 for Figure 1 sectional view of .

[0019] Figure 3 It is a structural schematic diagram of the adjustable buffer mechanism.

[0020] Figure 4 It is a structural schematic diagram of the synchronous transmission mechanism.

[0021] Figure 5 It is a structural schematic diagram of the adjustable stretching mechanism.

[0022] 1-base; 2-column 1; 3-adjustable buffer mechanism 1; 4-drive shaft 1; 5-synchronous drive mechanism; 6-cross bar; 7-adjustable stretching mechanism; 8-adjustable buffer mechanism 2; 9-column 2; 10-drive shaft 2; 31-movable seat; 32-adjusting head 1; 33-screw 1; 34-guide groove; 35-nut block 1; 36-spring 1; 37-connecting seat; 38-connecting hole; 39-locking screw; 310-spring 2; 311-nut block 2; 51-adjusting Head two; 52-worm wheel one; 53-worm one; 54-connecting shaft one; 55-pulley one; 56-synchronous belt; 57-pulley two; 58-connecting shaft two; 59-worm wheel two; 510-worm two; 511-adjusting head three; 71-adjusting head four; 72-driving gear; 73-driven gear; 74-screw three; 75-slider; 76-pull rope; 77-movable block; 78-pulley; 79-spring three; 710-guide hole cavity; 711-handle; 712-guide wheel. Specific implementation method:

[0023] like Figure 1 and Figure 2As shown, this specific embodiment adopts the following technical scheme: an adjustable training device, including a base 1, a column 2, an adjustable buffer mechanism 3, a transmission shaft 4, a synchronous transmission mechanism 5, a cross bar 6, an adjustable stretching mechanism 7, an adjustable buffer mechanism 8, a column 9 and a transmission shaft 10; the upper left side of the base 1 is fixedly connected to the column 2, and the upper right side of the base 1 is fixedly connected to the column 9; the transmission shaft 4 is movably connected to the upper side of the column 2, the right end of the transmission shaft 4 is fixedly connected to the adjustable buffer mechanism 3, and the outer side of the transmission shaft 4 is connected to the left side of the synchronous transmission mechanism 5; the transmission shaft 2 10 is movably connected to the upper side of the column 2 9, the left end of the transmission shaft 2 10 is fixedly connected to the adjustable buffer mechanism 2 8, and the outer side of the transmission shaft 2 10 is connected to the right side of the synchronous transmission mechanism 5; the left and right sides of the cross bar 6 are respectively connected to the movable parts of the adjustable buffer mechanism 3 and the adjustable buffer mechanism 2 8, and the left and right sides of the cross bar 6 are provided with adjustable stretching mechanisms 7.

[0024] like Figure 3 As shown, the adjustable buffer mechanism 2 8 is consistent with the structure of the adjustable buffer mechanism 1 3 and is symmetrically arranged. The specific structure of the adjustable buffer mechanism 1 3 includes a movable seat 31, an adjusting head 1 32, a screw 1 33, a guide groove 34, a nut block 1 35, a spring 1 36, a connecting seat 37, a connecting hole 38, a locking screw 39, a spring 2 310 and a nut block 2 311; a guide groove 34 is provided on the lower right side of the movable seat 31; the screw 1 33 is movably connected to the center of the guide groove 34, and the upper end of the screw 1 33 is fixedly connected to the adjusting head 1 32; the outer part of the nut block 1 35 is laterally movably connected to the upper side of the guide groove 34, and the threaded hole provided in the center of the nut block 1 35 is connected to the screw 1 33 ; The left side of the connecting seat 37 is located at the lower side of the nut block 1 35, and the left side of the connecting seat 37 is movably connected to the inside of the guide groove 34. A spring 1 36 is provided between the inner part of the upper left side of the connecting seat 37 and the bottom surface of the nut block 1 35. A connecting hole 38 is opened in the center of the right side of the connecting seat 37, and a locking screw 39 is movably connected in the threaded hole provided at the lower side of the connecting hole 38, and the inner end of the locking screw 39 is connected to the outside of the cross bar 6; the outside of the nut block 2 311 is movably connected to the lower side of the guide groove 34 in a transverse manner, and a spring 2 310 is provided between the top surface of the nut block 2 311 and the inner part of the lower left side of the connecting seat 37, and the threaded hole provided in the center of the nut block 2 311 is connected to the screw 1 33.

[0025] A hexagonal hole is provided at the center of the outer side of the adjusting head 32, so that the adjusting head 32 can be rotated by a hexagonal wrench; and the guide groove 34 is a T-shaped guide groove.

[0026] like Figure 4As shown, the specific structure of the synchronous transmission mechanism 5 includes an adjusting head 2 51, a worm wheel 1 52, a worm 1 53, a connecting shaft 1 54, a pulley 1 55, a synchronous belt 56, a pulley 2 57, a connecting shaft 2 58, a worm wheel 2 59, a worm 2 510 and an adjusting head 3 511; the central interior of the worm wheel 1 52 is fixedly connected to the central exterior of the transmission shaft 4; the connecting shaft 1 54 is movably connected to the interior of the column 1 2, the upper exterior of the connecting shaft 1 54 is fixedly connected to the worm 1 53, and the worm 1 53 is connected to the worm wheel 1 52, and the top of the connecting shaft 1 54 is fixedly connected to the It is connected to an adjusting head 51, and a pulley 55 is fixedly connected to the outer lower side of the connecting shaft 54; the central inner part of the worm wheel 59 is fixedly connected to the central outer part of the transmission shaft 10; the connecting shaft 58 is movably connected to the inside of the column 29, and a worm 510 is fixedly connected to the outer upper side of the connecting shaft 58, and the worm 510 is connected to the worm wheel 59, and an adjusting head 3 511 is fixedly connected to the top of the connecting shaft 58, and a pulley 57 is fixedly connected to the outer lower side of the connecting shaft 58; the pulley 57 is connected to the pulley 55 through a synchronous belt 56.

[0027] Among them, the upper center of the adjusting head 2 51 and the adjusting head 3 511 is provided with a hexagonal hole, so that the adjusting head 2 51 and the adjusting head 3 511 can be driven to rotate by a hexagonal wrench.

[0028] like Figure 5 As shown, the specific structure of the adjustable stretching mechanism 7 includes an adjusting head 4 71, a driving gear 72, a driven gear 73, a screw 3 74, a slider 75, a pull rope 76, a movable block 77, a pulley 78, a spring 3 79, a guide hole cavity 710, a handle 711 and a guide wheel 712; the adjusting head 4 71 is movably connected to the inner part of the upper left side of the cross bar 6, and the lower end of the adjusting head 4 71 is fixedly connected to the driving gear 72; the guide hole cavity 710 is transversely arranged inside the cross bar 6, and the lower left side of the guide hole cavity 710 is movably connected to a plurality of guide wheels 712; the screw 3 74 is movably connected to the upper side of the guide hole cavity 710, and the left end of the screw 3 74 A driven gear 73 is fixedly connected, and the driven gear 73 is connected to the driving gear 72; the outside of the slider 75 is laterally movably connected to the left side of the guide hole cavity 710, and the threaded hole arranged on the upper side of the slider 75 is connected to the screw rod three 74; the movable block 77 is movably connected to the right side of the guide hole cavity 710, and a pulley 78 is movably connected to the center of the left side of the movable block 77, and a spring three 79 is arranged between the left side surface of the movable block 77 and the right side surface of the slider 75; one end of the pull rope 76 is fixedly connected to the upper left side of the guide hole cavity 710, and the other side of the pull rope 76 is fixedly connected to the center of the top of the handle 711 through the pulley 78 and the guide wheel 712 in sequence.

[0029] Among them, a hexagonal hole is opened in the center of the upper side of the adjusting head four 71, so that it is convenient to drive the adjusting head four 71 to rotate by a hexagonal wrench; and an anti-slip pad is provided on the top surface of the base 1.

[0030] The use status of the utility model is as follows: the utility model has a reasonable and simple structure, low production cost and convenient installation. When in use, firstly, the adjusting head 2 51 or the adjusting head 3 511 is driven to rotate by the wrench, and the rotation of the adjusting head 2 51 drives the connecting shaft 1 54 to rotate, and the rotation of the connecting shaft 1 54 drives the transmission shaft 1 4 to rotate through the worm 1 53 and the worm wheel 1 52, and the rotation of the connecting shaft 1 54 also drives the connecting shaft 2 58 to rotate through the pulley 1 55, the synchronous belt 56 and the pulley 2 57, and the rotation of the connecting shaft 2 58 drives the transmission shaft 2 10 to rotate together through the worm 2 510 and the worm wheel 2 59, and the rotation of the transmission shaft 1 4 and the transmission shaft 2 10 together makes the adjustable buffer mechanism 1 3 and the adjustable buffer mechanism 2 8 rotate synchronously to the required angle, thereby facilitating the overall vertical or longitudinal movement of the cross bar 6, and can also meet the needs of using the cross bar 6 in a high or low position, thereby improving the convenience when using it. The adjustable buffer mechanism 1 3 and the adjustable buffer mechanism 2 8 are arranged. When the adjustable buffer mechanism 1 3 and the adjustable buffer mechanism 2 8 are in a vertical state, it is convenient to fine-tune the overall height of the corresponding cross bar 6, so as to better meet the ligament stretching needs of different users. When the adjustable buffer mechanism 1 3 and the adjustable buffer mechanism 2 8 are in a horizontal state, it is convenient to keep the cross bar 6 away from the column 1 2 and the column 2 9, thereby ensuring that the user will not be affected when performing bodybuilding training. The adjustable stretching mechanism 7 is arranged to facilitate the user to pull out the pull rope 76 through the handle 711 for training, and the rotating adjustment head 4 71 can drive the active gear 72 to rotate, and the rotation of the active gear 72 drives the screw 3 74 to rotate through the driven gear 73, and the rotation of the screw 3 74 causes the slider 75 to move laterally, so that the preload force of the spring 3 79 can be adjusted, and the force of pulling the pull rope 76 can be adjusted, thereby meeting the needs of different intensity training.

[0031] The control method in the present invention is to start manually or control by existing automation technology. The wiring diagram of the power element and the provision of power supply belong to the common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0032] In the description of the utility model, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] In the utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0034] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Technical personnel in this industry should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. An adjustable training device, characterized in that: It comprises a base (1), a first column (2), a first adjustable buffer mechanism (3), a first transmission shaft (4), a synchronous transmission mechanism (5), a crossbar (6), an adjustable stretching mechanism (7), a second adjustable buffer mechanism (8), a second column (9) and a second transmission shaft (10); A first column (2) is fixedly connected to the upper left side of the base (1), and a second column (9) is fixedly connected to the upper right side of the base (1); The transmission shaft 1 (4) is movably connected to the interior of the upper side of the column 1 (2); the right end of the transmission shaft 1 (4) is fixedly connected to an adjustable buffer mechanism 1 (3); the outer side of the transmission shaft 1 (4) is connected to the left side of the synchronous transmission mechanism (5); The second transmission shaft (10) is movably connected to the inside of the upper side of the second column (9), the left end of the second transmission shaft (10) is fixedly connected to the second adjustable buffer mechanism (8), and the outer side of the second transmission shaft (10) is connected to the right side of the synchronous transmission mechanism (5); The left and right sides of the cross bar (6) are respectively connected to the movable parts of the adjustable buffer mechanism 1 (3) and the adjustable buffer mechanism 2 (8), and the left and right sides of the cross bar (6) are both provided with adjustable stretching mechanisms (7).

2. The adjustable training device according to claim 1, characterized in that: The adjustable buffer mechanism 2 (8) is consistent in structure with the adjustable buffer mechanism 1 (3) and is symmetrically arranged. The specific structure of the adjustable buffer mechanism 1 (3) includes a movable seat (31), an adjusting head 1 (32), a screw rod 1 (33), a guide groove (34), a nut block 1 (35), a spring 1 (36), a connecting seat (37), a connecting hole (38), a locking screw (39), a spring 2 (310) and a nut block 2 (311); A guide groove (34) is formed on the lower right side of the movable seat (31); The screw rod 1 (33) is movably connected to the center of the guide groove (34), and the upper end of the screw rod 1 (33) is fixedly connected to the adjusting head 1 (32); The outside of the nut block 1 (35) is laterally movably connected to the upper side of the guide groove (34), and the threaded hole arranged in the center of the nut block 1 (35) is connected to the screw rod 1 (33); The left side of the connecting seat (37) is located at the lower side of the nut block (35), the left side of the connecting seat (37) is movably connected to the inside of the guide groove (34), a spring (36) is provided between the inner side of the upper left side of the connecting seat (37) and the bottom surface of the nut block (35), a connecting hole (38) is provided in the center of the right side of the connecting seat (37), and a locking screw (39) is movably connected to a threaded hole provided at the lower side of the connecting hole (38), and the inner end of the locking screw (39) is connected to the outside of the cross bar (6); The outside of the second nut block (311) is laterally movably connected to the lower side of the guide groove (34), a second spring (310) is provided between the top surface of the second nut block (311) and the inner part of the lower left side of the connecting seat (37), and a threaded hole provided in the center of the second nut block (311) is connected to the first screw rod (33).

3. The adjustable training device according to claim 2, characterized in that: A hexagonal hole is provided at the center of the outer side of the adjusting head 1 (32).

4. The adjustable training device according to claim 2, characterized in that: The guide groove (34) is a T-shaped guide groove.

5. The adjustable training device according to claim 1, characterized in that: The specific structure of the synchronous transmission mechanism (5) includes an adjusting head 2 (51), a worm wheel 1 (52), a worm screw 1 (53), a connecting shaft 1 (54), a pulley 1 (55), a synchronous belt (56), a pulley 2 (57), a connecting shaft 2 (58), a worm wheel 2 (59), a worm screw 2 (510) and an adjusting head 3 (511); The central inner portion of the worm gear 1 (52) is fixedly connected to the central outer portion of the transmission shaft 1 (4); The connecting shaft 1 (54) is movably connected to the inside of the column 1 (2); a worm gear 1 (53) is fixedly connected to the outside of the upper side of the connecting shaft 1 (54); the worm gear 1 (53) is connected to the worm wheel 1 (52); an adjusting head 2 (51) is fixedly connected to the top of the connecting shaft 1 (54); and a pulley 1 (55) is fixedly connected to the outside of the lower side of the connecting shaft 1 (54); The central inner portion of the second worm wheel (59) is fixedly connected to the central outer portion of the second transmission shaft (10); The second connecting shaft (58) is movably connected to the inside of the second column (9); the second worm (510) is fixedly connected to the upper outside of the second connecting shaft (58); the second worm (510) is connected to the second worm wheel (59); the top of the second connecting shaft (58) is fixedly connected to the third adjusting head (511); the lower outside of the second connecting shaft (58) is fixedly connected to the second pulley (57); The second pulley (57) is connected to the first pulley (55) via a synchronous belt (56).

6. The adjustable training device according to claim 5, characterized in that: The upper center of the second adjusting head (51) and the third adjusting head (511) is provided with a hexagonal hole.

7. The adjustable training device according to claim 1, characterized in that: The specific structure of the adjustable stretching mechanism (7) includes an adjusting head (71), a driving gear (72), a driven gear (73), a screw (74), a slider (75), a pull rope (76), a movable block (77), a pulley (78), a spring (79), a guide hole cavity (710), a handle (711) and a guide wheel (712); The fourth adjusting head (71) is movably connected to the interior of the upper left side of the cross bar (6), and the lower end of the fourth adjusting head (71) is fixedly connected to a driving gear (72); The guide hole cavity (710) is arranged transversely inside the crossbar (6), and a plurality of guide wheels (712) are movably connected to the lower left side of the guide hole cavity (710); The screw rod three (74) is movably connected to the upper side of the guide hole cavity (710), and the left end of the screw rod three (74) is fixedly connected to a driven gear (73), and the driven gear (73) is connected to the driving gear (72); The outside of the slider (75) is movably connected to the left side of the guide hole cavity (710) in a transverse manner, and the threaded hole provided on the upper side of the slider (75) is connected to the screw rod three (74); The movable block (77) is movably connected to the right side of the guide hole cavity (710), a pulley (78) is movably connected to the center of the left side of the movable block (77), and a spring three (79) is provided between the left side surface of the movable block (77) and the right side surface of the slider (75); One end of the pull rope (76) is fixedly connected to the upper left side of the guide hole cavity (710), and the other end of the pull rope (76) is fixedly connected to the center of the top of the handle (711) via a pulley (78) and a guide wheel (712) in sequence.

8. The adjustable training device according to claim 7, characterized in that: A hexagonal hole is provided in the center of the upper side of the adjusting head 4 (71).

9. The adjustable training device according to claim 1, characterized in that: An anti-slip pad is provided on the top surface of the base (1).

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