Strength training frame

Abstract

The utility model relates to the technical field of fitness equipment, in particular to a strength training frame which comprises a base, a supporting frame, a cross beam, a force measuring sensor assembly and a rotating assembly. The two supporting columns are perpendicular to the base. The two ends of the cross beam are arranged on the two supporting columns respectively, and the force transducer assembly is arranged on the cross beam; the rotating assembly is arranged at the connecting position of the supporting column and the base, the supporting frame rotates along the rotating assembly, and a first positioning piece is arranged on the rotating assembly and used for locking or releasing the position relation between the supporting frame and the base, so that the supporting frame and the base are unfolded or folded. A user can separate the supporting frame from the base without disassembling a plurality of fixing screws, the supporting frame can be directly rotated to be folded or unfolded only by shifting the first positioning piece on the rotating assembly, the storage and transfer process is greatly simplified, and time and energy of the user are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a strength training rack. Background Art

[0002] Power training racks can be used for both physical training and sports rehabilitation. They are usually used for strength training, muscle rehabilitation, flexibility training, and core stability enhancement.

[0003] However, when storing or transferring existing strength training racks, multiple fixing screws need to be removed to remove the left and right support columns on the support rack from the base, which is a cumbersome process. In addition, the frequent disassembly and assembly process may cause wear on the threaded parts, affecting the overall service life of the training rack.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0005] The utility model provides a strength training rack, thereby effectively solving the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a strength training rack, comprising:

[0007] base, support frame, beam, load cell assembly and rotating assembly;

[0008] The base is arranged horizontally, and the support frame includes a support column and a connecting rod connecting two of the support columns, the two support columns and the connecting rod are arranged in a door-shaped structure, and the two support columns are arranged vertically to the base;

[0009] The two ends of the crossbeam are respectively arranged on the two support columns, and the force sensor assembly is arranged on the crossbeam;

[0010] The rotating assembly is arranged at the connection between the support column and the base, and the support frame rotates along the rotating assembly. A first positioning member is provided on the rotating assembly for locking or releasing the support frame, thereby unfolding or folding the support frame and the base.

[0011] Furthermore, the rotating assembly further comprises a first fixed disk symmetrically arranged on both sides of the base, and a first rotating disk arranged at the end of the supporting column;

[0012] A first bearing is provided on the first rotating disk and is coaxially protruded; the first bearing is disposed in a recess of the first fixed disk, so that the first rotating disk rotates along the first fixed disk;

[0013] Furthermore, two first blind holes are provided on the first fixed plate at an interval of 90 degrees, and one end of the first positioning member is provided in the first blind hole for locking the state of the support frame.

[0014] Furthermore, the rotating assembly also includes a first protrusion arranged on the first turntable and a first spring bead arranged in the first protrusion, a first arc-shaped groove arranged on the first fixed plate, and second blind holes are provided at the bottom of both ends of the first arc-shaped groove. The first protrusion is arranged in the first arc-shaped groove to slide, and the first spring bead is arranged in the first blind hole for limiting.

[0015] Furthermore, each of the support columns is provided with a sliding sleeve, and the sliding sleeve slides along the support column, and a second positioning member is provided on a side of the sliding sleeve away from the crossbeam;

[0016] A plurality of first positioning holes are provided at intervals on the support column, and one end of the second positioning member is disposed in the first positioning hole for limiting position.

[0017] Furthermore, a second fixed plate is provided on a side of the sliding sleeve close to the crossbeam, second rotating plates are provided at both ends of the crossbeam, and a second bearing is provided between the second fixed plate and the second rotating plate;

[0018] The second rotating disk is provided with a third positioning member, and the second fixed disk is provided with a plurality of third blind holes in a circumferential direction. One end of the third positioning member is arranged in the third blind hole for limiting the circumferential position of the second fixed disk on the second fixed disk.

[0019] Furthermore, rotation auxiliary balls are evenly arranged on the second fixed plate.

[0020] Furthermore, a corresponding angle mark is provided on one side of the second fixed plate close to each of the third blind holes, and a through slot is provided on the second rotating plate. When the third positioning member is inserted into the third blind hole, the through slot is provided on the corresponding angle mark.

[0021] Furthermore, the force sensor assembly includes a first sensor assembly fixedly arranged in the middle, and second sensor assemblies arranged on both sides of the first sensor assembly;

[0022] The second sensor assembly includes a moving block sleeved on the crossbeam, a fourth positioning member is provided on the top of the moving block, and a first positioning plug bead is provided on the bottom. A second positioning hole is provided on the top of the crossbeam and a third positioning hole is provided on the bottom. One end of the fourth positioning member is provided in the second positioning hole, and one end of the first positioning plug bead is provided in the third positioning hole.

[0023] A U-shaped groove is provided on the side of the crossbeam, and a sliding bearing is provided between the moving block and the U-shaped groove.

[0024] Furthermore, a wear-resistant ring is provided between the moving block and the crossbeam, and the inner ring of the wear-resistant ring is provided with a plurality of concave and convex grooves.

[0025] Furthermore, a mounting groove is provided at the bottom of the moving block, a rotating arm is provided in the mounting groove, and a sensor is provided at the end of the rotating arm;

[0026] A rotating shaft is provided between the rotating arm and the moving block, and the rotating arm rotates along the rotating shaft. A second positioning bead is provided on one side of the moving block, and a fifth positioning piece is provided on the other side. A second arc-shaped groove is provided on one side of the rotating arm, and fourth blind holes are provided at both ends of the second arc-shaped groove. Two fifth blind holes are provided on the other side. One end of the fifth positioning piece is provided in the fifth blind hole, and one end of the second positioning bead is provided in the fourth blind hole.

[0027] The beneficial effects of the present invention are as follows: by introducing a rotating assembly at the connection between the support column and the base, the user no longer needs to remove multiple fixing screws to separate the support frame from the base. Only the first positioning piece on the rotating assembly is required to be turned so that the support frame can be directly rotated to be folded or unfolded, which greatly simplifies the storage and transfer process and saves the user's time and energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of the strength training rack (expanded state);

[0030] Figure 2 This is a structural diagram of a strength training rack (folded state);

[0031] Figure 3 It is a structural diagram of the rotating component;

[0032] Figure 4 This is an exploded view of the rotating component;

[0033] Figure 5 It is a structural diagram of beam rotation;

[0034] Figure 6 This is a schematic diagram of the structure of the connection between the second fixed plate and the second rotating plate;

[0035] Figure 7 This is an exploded view of the connection between the second fixed plate and the second rotating plate;

[0036] Figure 8 This is a structural diagram of the rotating arm driving the sensor to rotate;

[0037] Figure 9 is an exploded view of the second sensor assembly;

[0038] Figure 10 Schematic diagram of the structure of the rotating arm.

[0039] Figure numerals: 1, base; 2, support frame; 21, support column; 211, sliding sleeve; 212, second positioning member; 213, first positioning hole; 214, second fixed plate; 214a, third blind hole; 214b, rotation auxiliary ball; 214c, angle mark; 22, connecting rod; 3, crossbeam; 31, second turntable; 311, through groove; 32, second bearing; 33, third positioning member; 34, second positioning hole; 35, third positioning hole; 36, U-shaped groove; 37, sliding bearing; 4, force sensor assembly; 41, first sensor assembly; 42, second sensor assembly; 421, moving block; 4 21a, mounting groove; 422, fourth positioning member; 423, first positioning bead; 424, wear-resistant ring; 424a, concave-convex groove; 425, rotating arm; 425a, second arc-shaped groove; 425b, fourth blind hole; 425c, fifth blind hole; 426, sensor; 427, rotating shaft; 428, second positioning bead; 429, fifth positioning member; 5, rotating assembly; 51, first positioning member; 52, first fixed plate; 521, first blind hole; 522, first arc-shaped groove; 523, second blind hole; 53, first rotating plate; 531, first protrusion; 54, first bearing; 55, first spring bead. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all the embodiments.

[0041] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 present invention.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integrated connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0043] like Figures 1 to 10 As shown: A strength training rack, comprising: a base 1, a support frame 2, a crossbeam 3, a force sensor assembly 4 and a rotating assembly 5;

[0044] The base 1 is arranged horizontally, and the support frame 2 includes a support column 21 and a connecting rod 22 connecting the two support columns 21. The two support columns 21 and the connecting rod 22 are arranged in a door-shaped structure, and the two support columns 21 are arranged vertically to the base 1;

[0045] The two ends of the crossbeam 3 are respectively arranged on two supporting columns 21, and the force sensor assembly 4 is arranged on the crossbeam 3;

[0046] The rotating assembly 5 is arranged at the connection between the support column 21 and the base 1, and the support frame 2 rotates along the rotating assembly 5. A first positioning member 51 is provided on the rotating assembly 5 for locking or releasing the support frame 2, thereby unfolding or folding the support frame 2 and the base 1.

[0047] like Figure 1 、 2 As shown, by introducing a rotating assembly 5 at the connection between the support column 21 and the base 1, the user no longer needs to remove multiple fixing screws to separate the support frame 2 from the base 1. Only the first positioning member 51 on the rotating assembly 5 is moved, so that the support frame 2 can be directly rotated to be folded or unfolded, which greatly simplifies the storage and transfer process and saves the user's time and energy.

[0048] The rotating assembly 5 not only simplifies the operation, but also ensures that the support frame 2 remains stable when unfolded or folded through the first positioning member 51. The design of the first positioning member 51 can firmly lock the position of the support frame 2, avoiding the safety hazards caused by loose screws in traditional structures, and ensuring the stability of the training frame during use.

[0049] The rotating component 5 makes the folding and unfolding of the support frame 2 more flexible. Users can quickly adjust the shape of the training frame according to the different needs of the usage environment. This flexibility is particularly suitable for scenarios with limited space or the need to frequently transfer equipment, such as home gyms or rehabilitation centers.

[0050] As a preferred embodiment of the above, Figure 3 、4 As shown, the rotating assembly 5 further includes a first fixed plate 52 symmetrically arranged on both sides of the base 1 and a first rotating plate 53 arranged at the end of the supporting column 21;

[0051] A first bearing 54 is provided on the first rotating disk 53 and is coaxially protruded. The first bearing 54 is disposed in a recess of the first fixed disk 52 so that the first rotating disk 53 rotates along the first fixed disk 52.

[0052] In addition, two first blind holes 521 are arranged at an interval of 90° on the first fixed plate 52, and one end of the first positioning member 51 is arranged in the first blind hole 521, which is used to lock the state of the support frame 2. In this embodiment, the first positioning member 51 is a spring indexing pin, and can also be other forms of positioning pin structures, all of which are within the scope of protection of this application.

[0053] By arranging the first fixed plate 52 on both sides of the base 1, which cooperates with the first turntable 53 at the end of the support column 21, a stable and precise rotation connection is provided. The setting of the first bearing 54 enables the first turntable 53 to rotate smoothly on the first fixed plate 52, ensuring a smooth transition of the support frame 2 during the unfolding and folding process, thereby improving the stability of the overall structure.

[0054] In this embodiment, continue to refer to Figure 3 、 Figure 4 The rotating assembly 5 also includes a first protrusion 531 arranged on the first rotating disk 53 and a first spring plug bead 55 arranged in the first protrusion 531, a first arc-shaped groove 522 arranged on the first fixed disk 52, and a second blind hole 523 is provided at the bottom of both ends of the first arc-shaped groove 522. The first protrusion 531 is arranged in the first arc-shaped groove 522 to slide, and the first spring plug bead 55 is arranged in the first blind hole 521 for limiting.

[0055] The combination of the first protrusion 531 and the first spring bead 55 with the first arc-shaped groove 522 and the second blind hole 523 allows for limiting the position at a specific position during the rotation process, which not only controls the rotation angle but also accurately locks the position of the support frame 2 to ensure that the position will not be offset due to unexpected forces after unfolding or folding.

[0056] By setting second blind holes 523 at both ends of the first arc-shaped groove 522, combined with the functions of the first positioning member 51 and the first spring plug bead 55, a multiple locking mechanism is formed. Regardless of whether the support frame 2 is in the unfolded or folded state, this design can firmly lock the position of the support frame 2 to prevent accidental sliding or rotation, thereby improving safety and reliability during use.

[0057] When the support frame 2 needs to be folded, the spring indexing pin is pulled out a certain distance and rotated 90 degrees to retract the spring indexing pin, thereby releasing the limit of the support frame 2 and rotating the first turntable 53 on the support frame 2. Figure 2 As shown, the support frame 2 and the base 1 are in a folded state, and at the same time, the first protrusion 531 slides along the first arc-shaped groove 522, so that the first spring plug bead 55 falls into the second blind hole 523 on the other side, and then the spring indexing pin is rotated 90 degrees in the opposite direction to make the spring indexing pin in a pop-up state. At this time, the spring indexing pin is inserted into another first blind hole 521, so that the support frame 2 in the folded state is positioned; when the support frame 2 needs to be unfolded, the reverse operation can be performed to make the support frame 2 and the base 1 in a vertical unfolded state, refer to Figure 1 , which will not be described here, so that the user no longer needs complicated operations when folding or unfolding the support frame 2. The user only needs to pull out part of the first positioning member 51 and rotate the support column 21 to complete the adjustment, which enhances the intuitiveness and convenience of the operation.

[0058] Among them, reference Figure 6 、 Figure 7 , each support column 21 is provided with a sliding sleeve 211, and the sliding sleeve 211 slides along the support column 21, and a second positioning member 212 is provided on the side of the sliding sleeve 211 away from the beam 3;

[0059] A number of first positioning holes 213 are provided at intervals on the support column 21, and one end of the second positioning member 212 is provided in the first positioning hole 213 for limiting. Specifically, in this embodiment, the number of first positioning holes 213 is 25, and the interval between two first positioning holes 213 is 30 mm. It can also be other numbers and intervals, which are freely provided according to on-site requirements and are all within the scope of protection of this application.

[0060] In this embodiment, the side wall of each positioning column is marked with a height number, and the sliding sleeve 211 is provided with a notch. Each time the sliding sleeve is inserted into the first positioning hole 213 , a number corresponding to the height is set in the notch.

[0061] A sliding sleeve 211 is provided on each support column 21, and the sliding sleeve 211 can slide freely along the support column 21. By setting a plurality of spaced first positioning holes 213 on the support column 21, the user can adjust the sliding sleeve 211 to different height positions according to needs and fix it by the second positioning member 212, allowing the user to accurately adjust the height of the strength training rack according to different training or rehabilitation needs, thereby enhancing the versatility and adaptability of the equipment.

[0062] As a preferred embodiment of the above, Figures 5 to 7As shown, a second fixed plate 214 is provided on one side of the sliding sleeve 211 close to the crossbeam 3, and second rotating plates 31 are provided at both ends of the crossbeam 3. A second bearing 32 is further provided between the second fixed plate 214 and the second rotating plate 31.

[0063] A third positioning member 33 is provided on the second turntable 31, and a plurality of third blind holes 214a are provided circumferentially on the second fixed plate 214. One end of the third positioning member 33 is provided in the third blind hole 214a for circumferentially limiting the second fixed plate 214 on the second fixed plate 214. In this embodiment, the number of third blind holes 214a is 24, with one third blind hole 214a every 15°. The number of third blind holes 214a can also be other numbers, which are set according to the size of the third fixed plate and on-site requirements, and are all within the protection scope of this application.

[0064] Through the second fixed plate 214 and the second turntable 31, the beam 3 can be rotated 360°, either clockwise or counterclockwise, so that the user can accurately adjust the position of the beam 3 in any direction as needed to adapt to different types of training movements or rehabilitation training needs, greatly improving the flexibility of the strength training rack.

[0065] The design of the third positioning member 33 and the third blind hole 214a allows the user to quickly lock and limit at any angle while achieving 360° rotation. The operation is simple and convenient, and the quick adjustment and positioning method allows the user to complete the device settings and adjustments more easily, reducing unnecessary operating steps and improving the overall user experience.

[0066] In this embodiment, rotation auxiliary balls 214b are evenly provided on the second fixed plate 214. On the one hand, since the beam 3 itself is heavy, it may generate greater resistance during the rotation process. By evenly arranging the rotation auxiliary balls 214b on the second fixed plate 214, the rotation auxiliary balls 214b can effectively reduce the friction of the beam 3 during the rotation process, making the rotation of the beam 3 easier and smoother, thereby greatly reducing the operating burden; on the other hand, the rotation auxiliary balls 214b can provide uniform supporting force when the beam 3 rotates, ensuring the stability of the rotation process, and also allowing the beam 3 to be adjusted in angle more accurately, avoiding shaking or offset caused by uneven force.

[0067] Among them, a corresponding angle mark 214c is provided on one side of the second fixed plate 214 close to each third blind hole 214a, and a through slot 311 is provided on the second turntable 31. When the third positioning member 33 is inserted into the third blind hole 214a, the through slot 311 is provided on the corresponding angle mark 214c, so that the angle of lateral rotation can be intuitively displayed. The user only needs to check the angle mark 214c aligned with the through slot 311 to intuitively understand the current angle setting of the beam 3. This design greatly simplifies the angle adjustment process and avoids estimation errors.

[0068] As a preferred embodiment of the above, the force sensor assembly 4 includes a first sensor assembly 41 fixedly arranged in the middle, and second sensor assemblies 42 arranged on both sides of the first sensor assembly 41;

[0069] The second sensor assembly 42 includes a moving block 421 sleeved on the crossbeam 3. The moving block 421 is provided with a fourth positioning member 422 on the top and a first positioning bead 423 on the bottom. The crossbeam 3 is provided with a second positioning hole 34 on the top and a third positioning hole 35 on the bottom. One end of the fourth positioning member 422 is disposed in the second positioning hole 34, and one end of the first positioning bead 423 is disposed in the third positioning hole 35.

[0070] A U-shaped groove 36 is provided on the side of the crossbeam 3 , and a sliding bearing 37 is provided between the moving block 421 and the U-shaped groove 36 .

[0071] The second sensor assembly 42 is moved and positioned along the beam 3 through the moving block 421 and the fourth positioning member 422. The user can flexibly adjust the position of the sensor 426 according to the specific needs of the training, ensuring that the force sensor 426 can accurately measure the force conditions at different positions, thereby improving the applicability and flexibility of the equipment and being able to better meet the needs of different training scenarios.

[0072] Through the cooperation of the fourth positioning piece 422 and the first positioning bead 423, the second sensor assembly 42 can be stably fixed on the beam 3 after being adjusted to the desired position. The fourth positioning piece 422 and the first positioning bead 423 are respectively inserted into the corresponding second positioning hole 34 and the third positioning hole 35, ensuring that the position of the moving block 421 is fixed during use, preventing loosening or displacement during training, and ensuring the accuracy of measurement and the safety of the equipment.

[0073] In this embodiment, if Figure 9 As shown, a wear-resistant ring 424 is further provided between the moving block 421 and the crossbeam 3. The inner ring of the wear-resistant ring 424 is provided with a plurality of concave-convex grooves 424a. Specifically, the introduction of the wear-resistant ring 424 effectively reduces the friction between the moving block 421 and the crossbeam 3. By converting surface friction into linear friction, the contact area is reduced, and the friction coefficient is lowered, thereby reducing the wear between the moving block 421 and the crossbeam 3, which can effectively extend the service life of the equipment and maintain its long-term stable performance.

[0074] The design of the concave-convex groove 424a can not only change the friction mode, but also effectively reduce the wear of the paint surface of the beam 3 by the moving block 421, which helps to protect the surface coating of the beam 3 during long-term use, prevent the paint surface from peeling or scratching, and keep the equipment beautiful and tidy.

[0075] The wear-resistant ring 424 can be made of polytetrafluoroethylene, which has an extremely low friction coefficient. Combined with the structure of the concave-convex groove 424a, the movement of the moving block 421 on the beam 3 will be smoother and smoother, improving the user experience when adjusting the position of the sensor 426 component, making the moving block 421 move more easily and less prone to jamming.

[0076] As a preferred embodiment of the above, refer to Figure 9 、 Figure 10 , a mounting groove 421a is provided at the bottom of the moving block 421, a rotating arm 425 is provided in the mounting groove 421a, and a sensor 426 is provided at the end of the rotating arm 425;

[0077] A rotating shaft 427 is provided between the rotating arm 425 and the moving block 421, and the rotating arm 425 rotates along the rotating shaft 427. A second positioning plug bead 428 is provided on one side of the moving block 421, and a fifth positioning member 429 is provided on the other side. A second arc-shaped groove 425a is provided on one side of the rotating arm 425, and fourth blind holes 425b are provided at both ends of the second arc-shaped groove 425a. Two fifth blind holes 425c are provided on the other side. One end of the fifth positioning member 429 is provided in the fifth blind hole 425c, and one end of the second positioning plug bead 428 is provided in the fourth blind hole 425b. Specifically, the fifth positioning member 429 is pulled away from the rotating shaft 427 so that the end of the fifth positioning member 429 is away from the fifth blind hole 425c, thereby releasing the locking position of the rotating arm 425 and allowing the rotating arm 425 to rotate freely along the rotating shaft 427. Figure 8 As shown, when the rotating arm 425 is in a vertical state, the fifth positioning member 429 is inserted into another fifth blind hole 425c to lock the vertically set rotating arm 425. Similarly, the rotating arm 425 can be rotated 90° clockwise or counterclockwise to a horizontal position on the left and right sides, and the fifth positioning member 429 is inserted into the corresponding fifth blind hole 425c to lock the position. The user can flexibly adjust the position of the sensor 426 according to training needs to meet the needs of different training methods.

[0078] The user can quickly adjust the position of the rotating arm 425 through simple operations (such as pulling the fifth positioning member 429) and lock it when needed, which simplifies the operation process of the equipment. The user can more conveniently adjust the angle and position of the sensor 426, thereby improving the efficiency of training.

[0079] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A strength training rack, characterized in that: include: base, support frame, beam, load cell assembly and rotating assembly; The base is arranged horizontally, and the support frame includes a support column and a connecting rod connecting two of the support columns, the two support columns and the connecting rod are arranged in a door-shaped structure, and the two support columns are arranged vertically to the base; The two ends of the crossbeam are respectively arranged on the two support columns, and the force sensor assembly is arranged on the crossbeam; The rotating assembly is arranged at the connection between the support column and the base, and the support frame rotates along the rotating assembly. A first positioning member is provided on the rotating assembly for locking or releasing the support frame, thereby unfolding or folding the support frame and the base.

2. The strength training rack according to claim 1, characterized in that: The rotating assembly further includes a first fixed plate symmetrically arranged on both sides of the base, and a first rotating plate arranged at the end of the supporting column; A first bearing is provided on the first rotating disk and is coaxially protruded; the first bearing is disposed in a recess of the first fixed disk, so that the first rotating disk rotates along the first fixed disk; Furthermore, two first blind holes are provided on the first fixed plate at an interval of 90 degrees, and one end of the first positioning member is provided in the first blind hole for locking the state of the support frame.

3. The strength training rack according to claim 2, characterized in that: The rotating assembly also includes a first protrusion arranged on the first turntable and a first spring bead arranged in the first protrusion, a first arc-shaped groove arranged on the first fixed plate, and second blind holes are provided at the bottom of both ends of the first arc-shaped groove. The first protrusion is arranged in the first arc-shaped groove to slide, and the first spring bead is arranged in the first blind hole for limiting.

4. The strength training rack according to claim 1, characterized in that: A sliding sleeve is sleeved on each of the support columns, and the sliding sleeve slides along the support column, and a second positioning member is provided on a side of the sliding sleeve away from the crossbeam; A plurality of first positioning holes are provided at intervals on the support column, and one end of the second positioning member is disposed in the first positioning hole for limiting position.

5. The strength training rack according to claim 4, characterized in that: A second fixed plate is provided on one side of the sliding sleeve close to the crossbeam, second rotating plates are provided at both ends of the crossbeam, and a second bearing is provided between the second fixed plate and the second rotating plate; The second rotating disk is provided with a third positioning member, and the second fixed disk is provided with a plurality of third blind holes in a circumferential direction. One end of the third positioning member is arranged in the third blind hole for limiting the circumferential position of the second fixed disk on the second fixed disk.

6. The strength training rack according to claim 5, characterized in that: The second fixed plate is also evenly provided with rotation auxiliary balls.

7. The strength training rack according to claim 5, characterized in that: A corresponding angle mark is provided on one side of the second fixed plate close to each third blind hole, and a through slot is provided on the second rotating plate. When the third positioning member is inserted into the third blind hole, the through slot is provided on the corresponding angle mark.

8. The strength training rack according to claim 1, characterized in that: The force sensor assembly includes a first sensor assembly fixedly arranged in the middle, and second sensor assemblies arranged on both sides of the first sensor assembly; The second sensor assembly includes a moving block sleeved on the crossbeam, a fourth positioning member is provided on the top of the moving block, and a first positioning plug bead is provided on the bottom. A second positioning hole is provided on the top of the crossbeam and a third positioning hole is provided on the bottom. One end of the fourth positioning member is provided in the second positioning hole, and one end of the first positioning plug bead is provided in the third positioning hole. A U-shaped groove is provided on the side of the crossbeam, and a sliding bearing is provided between the moving block and the U-shaped groove.

9. The strength training rack according to claim 8, characterized in that: A wear-resistant ring is further provided between the moving block and the crossbeam, and the inner ring of the wear-resistant ring is provided with a plurality of concave-convex grooves.

10. The strength training rack according to claim 8, characterized in that: A mounting slot is provided at the bottom of the moving block, a rotating arm is provided in the mounting slot, and a sensor is provided at the end of the rotating arm; A rotating shaft is provided between the rotating arm and the moving block, and the rotating arm rotates along the rotating shaft. A second positioning bead is provided on one side of the moving block, and a fifth positioning piece is provided on the other side. A second arc-shaped groove is provided on one side of the rotating arm, and fourth blind holes are provided at both ends of the second arc-shaped groove. Two fifth blind holes are provided on the other side. One end of the fifth positioning piece is provided in the fifth blind hole, and one end of the second positioning bead is provided in the fourth blind hole.

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