A multifunctional power training machine

Abstract

The application discloses a multifunctional strength training machine and relates to the technical field of fitness equipment.The multifunctional strength training machine comprises a main frame body, a counterweight assembly and multiple training modules; the main frame body is composed of a bottom frame, a stand column and a top frame, and the upper and lower ends of the stand column are connected with the top frame and the bottom frame respectively; the two sides of the main frame body are provided with the counterweight assembly; the counterweight assembly comprises a counterweight frame, counterweight blocks, a pull rope, a connecting ring and a connecting pin; the counterweight blocks are located in the counterweight frame, and the connecting pin penetrates through the counterweight blocks and is in sliding connection with the counterweight blocks.The multiple training modules are provided with integrated pull-up stretching modules, bench press modules, high-position pull-down modules and rowing modules, so that one machine can be used to train the back, chest, shoulder, arm and core muscle group, the user does not need to purchase multiple training machines with different functions, the economic cost is greatly reduced, the indoor space occupied by the machine is reduced, and the machine is suitable for the space demand of a family fitness scene and a small fitness studio.

Description

Technical Field

[0001] This invention belongs to the field of fitness equipment technology, specifically, it relates to a multifunctional strength training machine. Background Technology

[0002] With the continuous awakening of national fitness awareness, strength training has gradually spread from the professional fitness field to the daily fitness scene at home. Whether it is young people who pursue muscle shaping or middle-aged and elderly people who pay attention to maintaining physical function, they all regard strength training as an important means to improve physical fitness.

[0003] Currently, there are many types of strength training machines on the market, but most of them suffer from limited functionality: a single machine can usually only train a specific muscle group. If users need to train multiple muscle groups comprehensively, they need to purchase multiple machines with different functions, which not only increases economic costs but also occupies a lot of indoor space. This is especially unsuitable for home fitness settings or small fitness studios. In addition, although some multi-functional training machines attempt to integrate multiple training functions, they suffer from complex structures and inconvenient adjustments. For example, the connection structure between the weight components and training modules of some training machines is fixed, and users need to disassemble and reassemble the components when switching training movements, which is cumbersome and time-consuming.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a multifunctional strength training machine that solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0007] A multifunctional strength training machine includes: a main frame, a counterweight assembly, and multiple training modules; the main frame is composed of a base frame, uprights, and a top frame connected together, with the upper and lower ends of the uprights connected to the top frame and the base frame, respectively; counterweight assemblies are provided on both sides of the main frame, each counterweight assembly including a counterweight frame, a counterweight block, a pull rope, a connecting ring, and a connecting pin, the counterweight block being located within the counterweight frame, and the connecting pin passing through and slidably connected to the counterweight block, the top end of the connecting pin being connected to the pull rope via the connecting ring, and the other end of the pull rope extending to the main frame and connected to a connecting lock; the multiple training modules include a pull-up extension module, a bench press module, a lat pulldown module, and a rowing module.

[0008] Optionally, a side plate is also connected between the top frame and the bottom frame, and the counterweight frame is connected to the side plate.

[0009] Optionally, a guide rod is also provided inside the counterweight frame. The upper and lower ends of the guide rod are connected to the top frame and the bottom frame, respectively. A limit ring is connected to the side wall of the connecting ring. The guide rod passes through the limit ring and the counterweight in sequence and is slidably connected to them.

[0010] Optionally, a plurality of counterweights are provided, and a first pin hole is provided on the side wall of the counterweight, and a second pin hole corresponding to the first pin hole is provided on the surface of the connecting pin.

[0011] Optionally, the counterweight assembly further includes an adjusting pin, which passes through a first pin hole and a second pin hole.

[0012] Optionally, the column surface is provided with a plurality of equidistantly distributed positioning screw holes, and an adjustment frame is connected to the column surface through the positioning screw holes and bolts, and a connecting frame is rotatably connected to the surface of the adjustment frame.

[0013] Optionally, a pulley assembly is connected to the top frame and the connecting frame. The pulley assembly includes multiple fixed pulleys, which are respectively connected to the bracket and the connecting frame. The pull rope passes through the fixed pulleys in sequence and is connected to the connecting lock.

[0014] Optionally, the pull-up extension module includes a crossbar connected between the top frames, and the bench press module includes a bench press bar connected between two connecting rings, with a baffle connected to the top of the side of the connecting ring connected to the bench press bar. The baffle is arc-shaped and adapted to the surface of the bench press bar.

[0015] Optionally, the high-position pull-down module and the rowing module each include a pull-down grip and a rowing grip, and the pull-down grip and the rowing grip are detachably connected to the connecting lock.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] 1. By setting up a multi-unit training module structure that integrates pull-up, bench press, lat pulldown, and rowing modules, a single device can train the back, chest, shoulders, arms, and core muscles. This eliminates the need for users to purchase multiple training machines with different functions, significantly reducing economic costs. It also reduces the space occupied by the equipment, making it suitable for home fitness scenarios and small fitness studios.

[0018] 2. By setting up a detachable connection structure between the pull rope and the training module, which consists of a connecting buckle, the training components such as the lat pulldown grip and rowing grip can be quickly disassembled and assembled. When switching between training movements such as lat pulldown and rowing, users do not need to disassemble and reassemble complex components, simplifying the operation process, saving time in switching movements, and improving training efficiency. At the same time, by setting up a counterweight adjustment structure with an adjustment pin, a first pin hole, and a second pin hole, different numbers of counterweights can be locked as needed. Users can precisely adjust the resistance according to the training intensity requirements without relying on a complex counterweight switching mechanism, reducing the difficulty of operation and adapting to the needs of users with different training levels.

[0019] 3. By setting up a pulley assembly structure composed of multiple bearing fixed pulleys, the direction of the pulling force is efficiently converted and the sliding friction is greatly reduced. The vertical resistance of the counterweight assembly is accurately converted into the horizontal or oblique resistance required by the training module, avoiding the user's force application being stuck. At the same time, the direct friction between the pulling rope and the main frame is reduced, the service life of the pulling rope is extended, and the training smoothness is improved.

[0020] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure after disassembling the bench press bar;

[0025] Figure 4 This is a schematic diagram of the counterweight assembly structure;

[0026] Figure 5 This is a partial cross-sectional view of the counterweight assembly.

[0027] Figure 6 This is a schematic diagram of the pulley assembly structure.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1. Base frame; 2. Upright column; 3. Top frame; 4. Side plate; 5. Crossbar; 6. Bench press bar; 7. Rowing grip bar; 8. Pull-down grip bar; 9. Counterweight frame; 10. Counterweight block; 11. Adjusting pin; 12. First pin hole; 13. Connecting ring; 131. Connecting pin; 132. Baffle; 14. Limiting ring; 15. Pull rope; 16. Guide rod; 17. Positioning screw hole; 18. Second pin hole; 19. Fixed pulley; 20. Adjusting frame; 21. Connecting frame; 22. Connecting lock.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] The invention will now be described in further detail with reference to the accompanying drawings.

[0032] Example 1

[0033] Please see Figure 1-6 As shown, this embodiment provides a multi-functional strength training machine, including: a main frame, a counterweight assembly, and multiple training modules; the main frame is composed of a base frame 1, a column 2, and a top frame 3 connected together, with the upper and lower ends of the column 2 connected to the top frame 3 and the base frame 1 respectively; counterweight assemblies are provided on both sides of the main frame, the counterweight assembly including a counterweight frame 9, a counterweight block 10, a pull rope 15, a connecting ring 13, and a connecting pin 131, the counterweight block 10 is located inside the counterweight frame 9, and the connecting pin 131 passes through the counterweight block 10 and is slidably connected to the counterweight block 10, the top end of the connecting pin 131 is connected to the pull rope 15 through the connecting ring 13, and the other end of the pull rope 15 extends to the main frame and is connected to the connecting lock 22; the multiple training modules include a pull-up extension module, a bench press module, a lat pulldown module, and a rowing module.

[0034] The base frame 1 is made of thickened steel and is in direct contact with the ground. Anti-slip pads can be added to the bottom to increase friction and prevent the equipment from shifting during training. The upper and lower ends of the uprights 2 are fixedly connected to the bottom of the top frame 3 and the top of the base frame 1, respectively. They are square steel tubes to ensure sufficient load-bearing strength and prevent bending deformation due to counterweight tension or user training forces. The top frame 3 spans the tops of the two uprights 2, providing a foundation for some training modules and also for arranging auxiliary components such as pulleys to achieve force transmission and direction. The counterweight frame 9 serves as the counterweight block. The receiving frame 10, connected to both sides of the main frame, limits the movement of the counterweight 10, preventing it from deviating from its trajectory during movement. The counterweight 10 is made of cast iron or cement, providing basic resistance for training. Multiple counterweights 10 are stacked within the counterweight frame 9; the user can select the number to stack according to training needs. Connecting pins 131 pass through all stacked counterweights 10 and maintain a sliding connection with them, integrating the selected counterweights 10 into a single unit for unified resistance transmission. Connecting rings 13 are installed on the connecting... The top of pin 131 serves as a transition component connecting pin 131 and pull rope 15, preventing wear caused by direct connection between pull rope 15 and connecting pin 131, while ensuring stable force transmission. Pull rope 15 is made of high-strength nylon or steel wire rope, with one end fixed to connecting pin 131 via connecting ring 13, and the other end extending to the main frame and connecting to connecting buckle 22. It acts as the force transmission link between the counterweight assembly and the training module. Connecting buckle 22 serves as a detachable interface between pull rope 15 and the training module, connecting to the training module via a snap-fit ​​or plug-in structure for easy use. Users can change different modules according to their training needs; the counterweight 10 is limited by the counterweight frame 9 to prevent it from shifting or falling during movement; the sliding connection between the connecting pin 131 and the counterweight 10, and the stable cooperation between the connecting ring 13 and the rope 15, ensure that there is no loosening during the resistance transmission process and reduce the safety hazards caused by the detachment of parts; through the four modules of pull-up stretching, bench press, lat pulldown, and rowing, the back, chest, shoulders, arms and core muscles can be exercised respectively, without the need to purchase additional single-function training equipment, so as to achieve comprehensive strength training of the upper limbs and back.

[0035] Example 2

[0036] Please see Figure 1-6 As shown, in this embodiment, a side plate 4 is connected between the top frame 3 and the base frame 1, and a counterweight frame 9 is connected to the side plate 4. A guide rod 16 is also provided in the counterweight frame 9. The upper and lower ends of the guide rod 16 are connected to the top frame 3 and the base frame 1, respectively. A limit ring 14 is connected to the side wall of the connecting ring 13. The guide rod 16 passes through the limit ring 14 and the counterweight block 10 in sequence and is slidably connected to them. Several counterweight blocks 10 are provided, and a first pin hole 12 is opened on the side wall of the counterweight block 10. A second pin hole 18 corresponding to the first pin hole 12 is opened on the surface of the connecting pin 131. The counterweight assembly also includes an adjusting pin 11, which passes through the first pin hole 12 and the second pin hole 18.

[0037] Side plate 4 is made of high-strength steel of the same material as column 2, and is vertically connected between the side of top frame 3 and the side of base frame 1, which is equivalent to forming a reinforcing surface on both sides of the main frame, preventing the main frame from lateral deformation due to the tension of the counterweight components on both sides. The counterweight frame 9 is tightly connected to side plate 4 by bolts, rather than directly connected to column 2. This not only disperses the pressure of the counterweight components on a single column 2, but also makes the installation position of counterweight frame 9 more precise, ensuring that the counterweight components on both sides are completely symmetrical, and preventing the equipment from tilting due to uneven force. Guide rod 16 is vertically set inside counterweight frame 9, and its upper and lower ends are fixedly connected to the bottom of top frame 3 and the top of base frame 1, respectively. It is made of round steel with a smooth surface to ensure smooth sliding. Limiting ring 14 is welded to the side wall of connecting ring 13, and its inner diameter matches the outer diameter of guide rod 16. Guide rod 16 passes through limiting ring 14 and all stacked counterweight blocks 10 in sequence, and is slidably connected to both. Through the cooperation of guide rod 16, limiting ring 14, and counterweight blocks 10, the counterweight is forced to... The counterweight 10 can only move up and down along the guide rod 16, completely preventing the counterweight 10 from shaking, jamming, or shifting during lifting and lowering. Each counterweight 10 has a first pin hole 12 on its side wall, and a second pin hole 18 corresponding to the first pin hole 12 is opened on the surface of the connecting pin 131. In addition, an adjustment pin 11 is added to the counterweight assembly. The adjustment pin 11 can be inserted into the aligned first pin hole 12 and second pin hole 18. When adjusting the resistance, the user only needs to insert the adjustment pin 11 into the pin hole of the counterweight 10 at different heights to lock all counterweights 10 at that height and below, so as to select the weight as needed, prevent the counterweight 10 from accidentally falling off, and achieve high adjustment accuracy. The snap-on design of the connecting latch 22 requires a specific action (pressing) to disassemble, preventing the module from accidentally falling off during training, which is especially suitable for novice users. At the same time, the detachable design of the connecting latch 22 allows users to quickly replace the training module without complicated operations, saving adjustment time between training intervals and improving training efficiency.

[0038] Example 3

[0039] Please see Figure 1-6 As shown, in this embodiment, the surface of the column 2 is provided with a number of equidistantly distributed positioning screw holes 17. The surface of the column 2 is connected to the adjustment frame 20 through the positioning screw holes 17 and bolts. The surface of the adjustment frame 20 is rotatably connected to the connecting frame 21. The top frame 3 is connected to the connecting frame 21 with a pulley assembly. The pulley assembly includes a number of fixed pulleys 19. The number of fixed pulleys 19 are respectively connected to the bracket and the connecting frame 21, and the pull rope 15 passes through the fixed pulleys 19 in sequence and is connected to the connecting lock 22.

[0040] The surface of the column 2 has several equidistantly distributed positioning screw holes 17. The adjustment frame 20 is fixed to the column 2 with bolts. The user can remove the bolts, move the adjustment frame 20 up and down along the column 2 to a suitable height, and then fix it again to achieve the up and down adjustment of the initial position of the training module. The connecting frame 21 is rotatably connected to the surface of the adjustment frame 20 through a rotating shaft, and can rotate horizontally around the adjustment frame 20 from 0-90°, making the angle of the training module more flexible and adaptable to different training postures. Multiple fixed pulleys 19 are fixed to the bottom of the top frame 3 and the side of the connecting frame 21 respectively. The fixed pulleys 19 adopt a bearing design to reduce the friction when the pull rope 15 slides. The pull rope 15 passes through the fixed pulleys 19 of the top frame 3 and the fixed pulleys 19 of the connecting frame 21 in sequence and then connects to the connecting lock 22. Through the steering action of the fixed pulleys 19, the vertical pulling force of the counterweight component can be adjusted. The design of the bearing-mounted pulley 19 in the pulley assembly reduces the friction of the pull rope 15, allowing users to exert force more smoothly during training and avoiding "force jamming" caused by excessive friction, thus improving training continuity. At the same time, the wear of the pull rope 15 is reduced, extending its service life by 2-3 times and reducing later maintenance costs. The up-and-down adjustment function of the adjustment frame 20 along the column 2 allows the initial height of the high-position pull-down module and the rowing module to adapt to users of different heights, avoiding the embarrassment of shorter users having to train on tiptoe and taller users having to bend over, thus improving training comfort. The rotation function of the connecting frame 21 allows the angle of the rowing module and the high-position pull-down module to be flexibly adjusted. For example, users can adjust the rowing module to 45° to adapt to the natural force exertion posture of seated rowing, improving training effect.

[0041] The pull-up module includes a crossbar 5 connected between the top frames 3. The bench press module includes a bench press bar 6 connected between two connecting rings 13. A baffle 132 is connected to the top of the side of the connecting ring 13 that is connected to the bench press bar 6. The baffle 132 is arc-shaped and fits the surface of the bench press bar 6. The lat pulldown module and the rowing module include a pulldown grip bar 8 and a rowing grip bar 7, respectively. The pulldown grip bar 8 and the rowing grip bar 7 are detachably connected to the connecting buckle 22.

[0042] The crossbar 5 is made of non-slip steel pipe, and its two ends are fixed to the top frame 3 by welding or bolts to ensure load-bearing strength and prevent the crossbar 5 from loosening when the user does pull-ups. The baffle 132 is connected to the top of the connecting ring 13 and the bench press bar 6 on the connecting side, and the inner arc surface of the baffle 132 is perfectly matched with the surface arc of the bench press bar 6. When the user performs bench press training, the baffle 132 can limit the bench press bar 6 from above, preventing the bench press bar 6 from sliding to the sides or accidentally falling off due to uneven force. It is especially suitable for novice users or heavy weight training scenarios. Grip the bar. Featuring a rubber anti-slip sleeve design and a "quick-plug" connection structure, users can quickly change the grip bar without tools to adapt to different training movements (such as wide-grip lat pulldowns and narrow-grip rows), increasing training diversity. The detachable grip bar, combined with the adjustable angle connection frame 21, expands the training movements that the device can perform from the basic 4 to 8-12 (such as incline bench press, narrow-grip lat pulldowns, and single-arm rows). No additional modules are needed to meet users' targeted training needs for different muscle groups, improving the cost-effectiveness of the device.

[0043] Working principle:

[0044] In use, multiple cast iron or cement counterweights 10 are stacked within the counterweight frames 9 on both sides of the main frame. Connecting pins 131 pass through all counterweights 10 to form a counterweight group. Depending on the training intensity, the user inserts adjusting pins 11 into the first pin hole 12 of the target counterweight 10 and the second pin hole 18 of the connecting pin 131, locking all counterweights 10 below the adjusting pin 11 to form the total training resistance. For example, inserting the pin hole of the third counterweight 10 locks the weight of the first three counterweights 10, allowing for selection as needed. In terms of stability, the counterweight frame 9 limits the counterweight block 10 to prevent deviation, the base frame 1 uses thickened steel and anti-slip pads to increase friction and prevent equipment displacement, the square steel pipe column 2 bears vertical tension to prevent the main frame from bending, the guide rod 16 passes through the limiting ring 14 on the side wall of the connecting ring 13 and the counterweight block 10, forcing the counterweight block 10 to slide along the guide rod 16 to eliminate shaking and jamming, the counterweight frame 9 is changed to be bolted to the side plate 4 to distribute the pressure of the column 2, ensure the symmetry of the counterweight on both sides, and avoid uneven force on the equipment and tilting.

[0045] The end of the pull rope 15 is connected to the locking buckle 22, which is a detachable interface that can be used with different training modules to meet the needs of multi-muscle group training. The anti-slip steel pipe crossbar 5 of the pull-up module is fixed between the top frame 3. The user grips the crossbar 5 and exerts force to lift the body, relying on the main frame to bear the weight, without the need for the pull rope 15. The bench press module's bench press bar 6 is connected between the two connecting rings 13. The arc-shaped baffle 132 fits the bar surface to prevent side slippage. The user lies flat and pushes the bar. The pulling force is transmitted through the bar to the connecting ring 13 and then drives the counterweight 1. The pull-down grip bar 8 of the high-position pull-down module is detachable from the connecting buckle 22. The rubber anti-slip sleeve increases friction. When the user pulls down in a seated position, the pulley assembly converts the vertical resistance into pull-down resistance, exercising the latissimus dorsi. The rowing grip bar 7 of the rowing module works similarly. When the user pulls back on the grip bar, the counterweight block 10 rises. The angle of the connecting frame 21 can be adjusted to adapt to the force exertion posture. The "quick-plug and quick-pull" grip bar design allows for the replacement of wide / narrow grip bars, expanding the training movements to 8-12 types, and targeting different muscle groups.

[0046] This invention is not limited to the embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Technical aspects, shapes, and structures not described in detail in this invention are all publicly known technologies.

Claims

1. A multifunctional strength training machine, characterized in that, include: Main frame, counterweight components, and multiple training modules; The main frame is composed of a base frame (1), columns (2) and a top frame (3) connected together. The upper and lower ends of the columns (2) are connected to the top frame (3) and the base frame (1) respectively. The main frame is provided with counterweight components on both sides. The counterweight components include a counterweight frame (9), a counterweight block (10), a pull rope (15), a connecting ring (13), and a connecting pin (131). The counterweight block (10) is located inside the counterweight frame (9), and the connecting pin (131) passes through the counterweight block (10) and is slidably connected to the counterweight block (10). The top end of the connecting pin (131) is connected to the pull rope (15) through the connecting ring (13), and the other end of the pull rope (15) extends to the main frame and is connected to the connecting buckle (22). The multiple training modules include pull-up extension module, bench press module, lat pulldown module, and rowing module.

2. The multifunctional strength training machine according to claim 1, characterized in that: A side plate (4) is also connected between the top frame (3) and the bottom frame (1), and the counterweight frame (9) is connected to the side plate (4).

3. A multifunctional strength training machine according to claim 2, characterized in that: The counterweight frame (9) is also provided with a guide rod (16). The upper and lower ends of the guide rod (16) are connected to the top frame (3) and the bottom frame (1) respectively. The side wall of the connecting ring (13) is connected to a limiting ring (14). The guide rod (16) passes through the limiting ring (14) and the counterweight (10) in sequence and is slidably connected to them.

4. A multifunctional strength training machine according to claim 3, characterized in that: The counterweight (10) is provided in several parts, and the side wall of the counterweight (10) is provided with a first pin hole (12), and the surface of the connecting pin (131) is provided with a second pin hole (18) corresponding to the first pin hole (12).

5. A multifunctional strength training machine according to claim 4, characterized in that: The counterweight assembly also includes an adjusting pin (11), which passes through the first pin hole (12) and the second pin hole (18).

6. A multifunctional strength training machine according to claim 1, characterized in that: The column (2) has several equidistantly distributed positioning screw holes (17) on its surface. An adjustment frame (20) is connected to the column (2) via the positioning screw holes (17) and bolts. A connecting frame (21) is rotatably connected to the surface of the adjustment frame (20).

7. A multifunctional strength training machine according to claim 6, characterized in that: The top frame (3) and the connecting frame (21) are connected to a pulley assembly, which includes multiple fixed pulleys (19). The multiple fixed pulleys (19) are respectively connected to the bracket and the connecting frame (21), and the pull rope (15) passes through the fixed pulleys (19) in sequence and is connected to the connecting buckle (22).

8. A multifunctional strength training machine according to claim 7, characterized in that: The pull-up module includes a crossbar (5) connected between the top frame (3), and the bench press module includes a bench press bar (6) connected between two connecting rings (13). A baffle (132) is connected to the top of the side of the connecting ring (13) that is connected to the bench press bar (6). The baffle (132) is arc-shaped and fits the surface of the bench press bar (6).

9. A multifunctional strength training machine according to claim 8, characterized in that: The high-position pull-down module and the rowing module respectively include a pull-down grip (8) and a rowing grip (7), and the pull-down grip (8) and the rowing grip (7) are detachably connected to the connecting buckle (22).

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