Sliding system and sliding connection piece for fitness equipment support stand column

Abstract

The embodiment of the utility model discloses a sliding system and a sliding connecting piece for a stand column of a fitness equipment support, the sliding connecting piece comprises a plurality of roll shafts, the roll shafts are provided with intervals, and every two roll shafts are oppositely arranged in parallel; the two roll shaft connecting plates are connected to the two ends of each roll shaft respectively; the plurality of pin shafts are detachably mounted on the roll shaft connecting plate, so that an external joint accessory can be selectively connected with the plurality of pin shafts to form a connecting structure which rotates relatively or is fixed relatively, high flexibility and adaptability are realized, the structure is easier to maintain through the modular design, space utilization is optimized, and the service life of the structure is prolonged. And the experience and the satisfaction degree of the user are improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of fitness equipment accessories, and particularly to a sliding connector and a sliding system for a support column of a fitness equipment bracket. Background Art

[0002] A squat rack is an essential comprehensive exercise equipment in a gym. By installing different accessories, different exercises can be performed. Currently, there are dozens of squat rack accessories on the market, and each accessory can only perform one exercise. Moreover, some accessories cannot be installed on the squat rack at the same time. When a user wants to perform the next exercise, they need to remove the accessory for the previous exercise and then install the accessory corresponding to the next exercise, which is rather cumbersome, time-consuming, and affects the user's exercise efficiency and experience. Additionally, with so many accessories, it takes up a lot of household space. With the development of fitness technology, the limitations of traditional designs are gradually emerging, especially in aspects such as compatibility with new training accessories and intelligent connections. Existing technologies may not be able to well support the integration and upgrade of new technologies.

[0003] Furthermore, traditional designs may not make full use of space, resulting in fitness equipment occupying too much space, which is not convenient for the layout of a home or a small gym and restricts the efficient use of space. During the design process, less consideration may be given to the personalized needs and operation convenience of users. When users adjust the equipment or replace accessories, they may feel inconvenient, reducing the user's participation and satisfaction. With the development of fitness technology, the limitations of traditional designs are gradually emerging, especially in aspects such as compatibility with new training accessories and intelligent connections. Existing technologies may not be able to well support the integration and upgrade of new technologies. Summary of the Utility Model

[0004] The embodiments of the present application provide a sliding connector and a sliding system for a support column of a fitness equipment bracket, achieving high flexibility and adaptability. Through modular design, the structure is more maintainable, space utilization is optimized, and the user experience and satisfaction are improved.

[0005] The first aspect of the embodiment of the present application provides a sliding connector for a support column of a fitness equipment bracket, which includes a plurality of roller shafts. The plurality of roller shafts have spaced gaps and are arranged parallel to each other in pairs; a channel that can pass through the support column is formed between two adjacent roller shafts, and each of the roller shafts can roll or slide on the outer surface of the support column; two roller shaft connecting plates, the plurality of roller shafts are arranged between the two roller shaft connecting plates, and both ends of the roller shafts are respectively connected to the two roller shaft connecting plates; a plurality of pin shafts, which are detachably installed on the roller shaft connecting plates, so that an external engaging fitting can selectively engage with the plurality of pin shafts to form a connection structure that can rotate or be fixed relative to each other; at least two rib plates are spaced on the outer plate surface of the roller shaft connecting plate, and a plurality of corresponding pairs of pin holes are arranged on the two spaced rib plates; the pin shafts can selectively penetrate into the pin holes of at least one of the rib plates, so that an external engaging fitting can selectively engage with the plurality of pin shafts to form a connection structure that can rotate or be fixed relative to each other.

[0006] In some embodiments, the two roller shaft connecting plates are arranged parallel to each other, and the two roller shaft connecting plates are provided with a plurality of corresponding pairs of pin holes. The pin shafts can penetrate into the pin holes of the first roller shaft connecting plate and penetrate out of the pin holes of the second roller shaft connecting plate. The plurality of pin holes of each roller shaft connecting plate are arranged on both sides of the roller shaft connecting plate and at least two pin holes are on the same horizontal plane.

[0007] In some embodiments, it further includes at least one through hole, which is arranged in the middle of the roller shaft connecting plate; a fixed shaft, and the sliding connector is fixed at a selected position of the support column by passing the fixed shaft through at least one through hole of the sliding connector.

[0008] In some embodiments, the lower sides of the two roller shaft connecting plates are provided with upwardly curved bending grooves. When the roller shaft connecting plates contact the safety pin shafts on the support column during downward movement, the bending parts of the bending grooves increase the contact area between the roller shaft connecting plates and the safety pin shafts.

[0009] The technical effects of the sliding connector for the support column of the fitness equipment bracket disclosed in the present application:

[0010] First, through the design of the sliding connector with a plurality of spaced roller shafts and their rolling or sliding mechanism with the support column of the fitness equipment, flexible installation and adjustment on the support column of the fitness equipment, such as the column of a squat rack, are realized. This design allows the external engaging fitting to move freely or be fixed at any position on the support column, adapting to different training needs and user body types, and improving the versatility and personalized adaptability of the fitness equipment.

[0011] Second, modularity and convenient maintenance: Through the detachable pin shaft design and several pairs of pin holes on the roller shaft connecting plate, the quick engagement or separation between the external engagement fittings and the sliding parts is achieved. This modular design not only facilitates the replacement of fittings according to training needs, but also simplifies the maintenance and upgrade process, improving the flexibility and long-term use value of the system.

[0012] Third, enhanced stability and load-bearing capacity: The rib plates provided on the roller shaft connecting plate not only increase the external interface structurally, optimize the structural strength and enhance the overall stability, but also provide additional connection points through the pin holes on the rib plates to further disperse the load, ensuring stability during high-load training and reducing potential safety hazards caused by structural shaking or unstable connections.

[0013] Fourth, optimized space utilization and versatility: Through the detachable pin shaft design and several pairs of pin holes on the roller shaft connecting plate, various external accessories with different functions can be quickly connected and switched on the sliding parts; compared with traditional single-function accessories, this design enables various accessories to share a single sliding part, saving space for users; in addition, it also increases the possibility of more functional variations for fitness equipment. For example, the access of rotary training accessories allows users to complete more diverse training movements on the same device, meeting the needs of comprehensive whole-body training.

[0014] Fifth, easy installation and adjustment: Through the intuitive pin shaft perforation connection method, users can adjust the position of the accessories or replace the accessories by themselves without complex tools, reducing the usage threshold and improving the operation convenience and satisfaction of users. In summary, through the innovative sliding part design, this technical solution not only greatly improves the flexibility, stability and versatility of fitness equipment, but also simplifies the maintenance process, enhances the user experience, and brings significant technological progress and practical benefits to the design and use of modern fitness equipment.

[0015] A sliding system for a support column of a fitness equipment disclosed in the second aspect of the present application includes a sliding part and an engagement fitting attached to the sliding part; the sliding part includes: a plurality of roller shafts, the plurality of roller shafts having spaced gaps and being arranged parallel to each other in pairs; a channel for passing through the support column is formed between two adjacent roller shafts, and the plurality of roller shafts can all roll or slide on the outer surface of the support column; two roller shaft connecting plates, the plurality of roller shafts are arranged between the two roller shaft connecting plates, and the two ends of the roller shafts are respectively connected to the two roller shaft connecting plates; a plurality of pin shafts detachably installed on one or two of the roller shaft connecting plates; the engagement fitting includes: a plurality of clamping parts, one end of the clamping part having an engagement structure with the plurality of pin shafts, and the engagement structure being a pin hole or / and a hook part, so that the clamping part can selectively engage with the plurality of pin shafts to form a connection structure that can rotate or be fixed relative to each other.

[0016] In some embodiments, at least two rib plates are spaced apart on the outer plate surface of the roller shaft connecting plate. A plurality of corresponding pairs of pin holes are provided in the two spaced-apart rib plates. The pin shaft can be selectively inserted through the pin holes of at least one of the rib plates, so that the external engagement fitting can selectively form a connection structure that rotates or is fixed relative to the plurality of pin shafts.

[0017] In some embodiments, the engagement structure of the clamping member can be selectively a pin hole or / and a hook member. The clamping member engages with the pin shaft on the sliding member through the pin hole or the hook member to form a connection structure that rotates or is fixed relative to each other.

[0018] In some embodiments, the engagement fitting further includes a chest press pipe fitting, which is connected to the clamping member. One or more weight plates can be selectively sleeved on the chest press pipe fitting.

[0019] In some embodiments, the engagement fitting further includes a pulley assembly, which is connected to the clamping member. The pulley assembly is slidably connected with a steel wire rope.

[0020] In some embodiments, the engagement fitting further includes a lateral raise fitting, which is connected to the clamping member. The lateral raise fitting includes one or more pipe fittings, and each pipe fitting can be selectively sleeved with one or more weight plates.

[0021] In some embodiments, the engagement fitting further includes a leg curl fitting, which is connected to the clamping member. The leg curl fitting includes one or more pipe fittings, and each pipe fitting can be selectively sleeved with one or more weight plates.

[0022] In some embodiments, the engagement fitting further includes a tubular fitting, which is connected to the clamping member. The tubular fitting can selectively sleeve a rod body, and the rod body can be selectively sleeved with one or more weight plates.

[0023] In some embodiments, the engagement fitting further includes a parallel bar dip fitting, which is connected to the clamping member. One or more cylindrical members are connected to the outer arm of the parallel bar dip fitting.

[0024] In some embodiments, upwardly curved grooves are provided on the lower sides of the two roller shaft connecting plates. When the roller shaft connecting plate contacts the safety pin shaft on the support column during downward movement, the bent portion of the groove increases the contact area between the roller shaft connecting plate and the safety pin shaft.

[0025] Through the functional compatibility and the structural design that facilitates installation and adjustment, the flexibility, stability, and adaptability of the fitness equipment support are significantly improved. At the same time, the installation and adjustment processes are simplified, the user experience is enhanced, and technical support is provided for the innovative design of fitness equipment and the personalized needs of users.

[0026] The structural design of the roller shaft and the connecting plate ensures the stability of the entire sliding system under moving loads, reduces shaking and noise during movement, and enhances the user's sense of security and training efficiency. At the same time, the clamping parts on the joining fittings are tightly joined with the pin shafts through pin holes or hooks, further enhancing the connection firmness, preventing the fittings from accidentally coming off during training, and ensuring training safety.

[0027] Multi-function and expandability: The diverse design of the joining fittings (such as clamping parts), which support rotational or fixed connections, adds rich functional expandability to the fitness equipment. Users can select appropriate joining fittings according to different training purposes, such as hanging dumbbells of different weights, rope training components, etc., achieving a wide coverage from basic strength training to advanced functional training.

[0028] Optimizing the user experience: The innovative design of this sliding system simplifies user operations, making it easy and quick to adjust the fitness equipment settings without the need for professional tools or complex operation guides. At the same time, the design of the system focuses on ergonomics, ensuring comfort during training and enhancing the overall training experience and satisfaction of users. Description of the Drawings

[0029] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. Among them:

[0030] Figure 1 It is a schematic side installation structure diagram of the sliding part and the support column in Embodiment 1 of this application;

[0031] Figure 2 It is a schematic side installation structure diagram of the sliding part and the support column on the other side in Embodiment 1 of this application;

[0032] Figure 3 It is a schematic specific structure diagram of the sliding part in Embodiment 1 of this application;

[0033] Figure 4 It is a schematic installation structure diagram of the sliding part and the first rib plate in Embodiment 2 of this application;

[0034] Figure 5 It is a schematic installation structure diagram of the sliding part and the second rib plate in Embodiment 2 of this application;

[0035] Figure 6 It is a schematic structure diagram of the sliding part and the parallel bar dip fitting in Embodiment 3 of this application;

[0036] Figure 7 It is a schematic top view structure of the sliding part and the parallel bar dip fitting in Embodiment 3 of this application;

[0037] Figure 8 is the cross-sectional view in the AA direction in Embodiment 3 of the present application; Figure 7

[0038] Figure 9 is the specific structural schematic diagram of the double-bar arm flexion and extension fitting in Embodiment 3 of the present application;

[0039] Figure 10 is the overall structural schematic diagram of the sliding connector and the lateral raise fitting in Embodiment 4 of the present application;

[0040] Figure 11 is the internal connection structural schematic diagram of the sliding connector and the lateral raise fitting in Embodiment 4 of the present application;

[0041] Figure 12 is the overall structural schematic diagram of the sliding connector and the tubular fitting in Embodiment 5 of the present application;

[0042] Figure 13 is the connection structural schematic diagram of the sliding connector and the tubular fitting in Embodiment 5 of the present application;

[0043] Figure 14 is the overall structural schematic diagram of the sliding connector and the leg flexion and extension fitting in Embodiment 6 of the present application;

[0044] Figure 15 is the exploded schematic diagram of the sliding connector and the leg flexion and extension fitting in Embodiment 6 of the present application;

[0045] Figure 16 is the schematic diagram of the other side structure of the sliding connector and the leg flexion and extension fitting in Embodiment 6 of the present application;

[0046] Figure 17 is the overall structural schematic diagram of the sliding connector and the bench press pipe fitting in Embodiment 7 of the present application;

[0047] Figure 18 is the internal structural schematic diagram of the sliding connector and the bench press pipe fitting in Embodiment 7 of the present application;

[0048] Figure 19 is the connection structural schematic diagram of the sliding connector and the pulley assembly in Embodiment 8 of the present application;

[0049] Figure 20 is the connection structural schematic diagram of the sliding connector and the pulley assembly from another angle in Embodiment 8 of the present application;

[0050] Figure 21 is the schematic diagram of another embodiment structure of the sliding connector and the pulley assembly in Embodiment 8 of the present application.

[0051] Explanation of reference numerals:

[0052] 1 - roller shaft;

[0053] 1a - The first roller shaft; 1b - The second roller shaft; 1c - The third roller shaft; 1d - The fourth roller shaft;

[0054] 2 - Roller shaft connecting plate;

[0055] 2a - The first connecting plate; 2b - The second connecting plate; 21 - Perforation; 22 - Bent groove;

[0056] 3 - Pin hole; 31a - The first pin hole; 31b - The second pin hole; 31c - The third pin hole; 31d - The fourth pin hole;

[0057] 32a - The fifth pin hole; 32b - The sixth pin hole; 33a - The seventh pin hole; 34a - The eighth pin hole;

[0058] 4 - Pin shaft; 41 - The first pin shaft; 42 - The second pin shaft; 43 - The third pin shaft; 44 - The fourth pin shaft;

[0059] 45 - The fifth pin shaft; 46 - The sixth pin shaft;

[0060] 5 - Bracket column; 51 - Fixing hole;

[0061] 6 - Fixed shaft;

[0062] 7 - Clamping member; 71 - Hook member;

[0063] 8 - Rib plate; 8a - The first rib plate; 8b - The second rib plate;

[0064] 9 - Bench press pipe fitting; 10 - Pulley assembly; 11 - Lateral raise fitting; 12 - Leg curl fitting; 13 - Tubular fitting; 14 - Dip fitting;

[0065] 15 - Columnar body; 16 - Weight plate, 17 - Safety pin shaft. Detailed implementation manners

[0066] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than limiting the present application. In fact, those skilled in the art will appreciate that modifications and variations can be made to the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. Therefore, it is desirable that the present application cover such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0067] In the description of the present application, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application rather than requiring the present application to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. The terms "connected", "coupled", and "arranged" used in the present application should be understood in a broad sense. For example, it may be a fixed connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate component; it may be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0068] One or more examples of the present application are shown in the accompanying drawings. The detailed description uses numerical and alphabetical labels to refer to features in the drawings. Similar or like labels in the drawings and the description have been used to refer to similar or like parts of the present application. As used herein, terms such as "first", "second", and "third" may be used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of individual components.

[0069] Example 1

[0070] As Figures 1 to 3As shown, according to an embodiment of the present application, a sliding connector for a support column of a fitness equipment is provided, which includes four roller shafts 1, namely a first roller shaft 1a, a second roller shaft 1b, a third roller shaft 1c, and a fourth roller shaft 1d. The first roller shaft 1a, the second roller shaft 1b, the third roller shaft 1c, and the fourth roller shaft 1d have spaced gaps and are arranged parallel to each other in pairs; a channel M through which the support column 5 can pass is formed between two adjacent roller shafts. The first roller shaft 1a, the second roller shaft 1b, the third roller shaft 1c, and the fourth roller shaft 1d can all roll or slide on the outer surface of the support column. The two roller shaft connecting plates 2 are respectively a first connecting plate 2a and a second connecting plate 2b. Both ends of the first roller shaft 1a, the second roller shaft 1b, the third roller shaft 1c, and the fourth roller shaft 1d are connected to the first connecting plate 2a and the second connecting plate 2b. The first connecting plate 2a and the second connecting plate 2b are arranged parallel to each other and opposite to each other, and four corresponding pairs of pin holes 3 are provided on the first connecting plate 2a and the second connecting plate 2b. The first pair of pin holes is the first pin hole 31a; the second pair of pin holes is the second pin hole 31b; the third pair of pin holes is the third pin hole 31c; the fourth pair of pin holes is the fourth pin hole 31d. The above sliding connector structure increases the stability of the fitness equipment. Especially during the load-bearing and moving processes, it can effectively disperse the force, reduce wear, and at the same time endows the support column with the ability to flexibly adjust in different directions, thereby improving the user experience. At the same time, the sliding connector structure is simple, and it can smoothly slide or be fixed at a specified position on the vertical column of the squat rack, adding diversity and flexibility to the exercise.

[0071] Each pair of pin holes 3 is arranged at intervals from the roller shaft 1 close to it, and the pin holes 3 are all arranged on the left and right sides of the first connecting plate 2a and the second connecting plate 2b. The pin shaft 4 is detachably connected to the roller shaft connecting plate 2, and the pin shaft 4 includes a first pin shaft 41, a second pin shaft 42, a third pin shaft 43, and a fourth pin shaft 44.

[0072] The fixed connection of the first connecting plate 2a, the second connecting plate 2b, and the four roller shafts (1a, 1b, 1c, 1d) connected to them simplifies the installation process of the sliding connector and saves installation time. By providing four pairs of pin holes (31a, 31b, 31c, 31d) on the roller shaft connecting plate 2, a standardized interface is provided for the connection between the sliding connector and external accessories, making the installation and adjustment simple and fast. Users can easily adjust the position or angle of the fitness equipment according to actual needs, enhancing the convenience and adaptability of use.

[0073] The first pin shaft 41 passes through the first pin hole 31a on the first connecting plate 2a and exits from the first pin hole 31a on the second connecting plate 2b; the second pin shaft 42 passes through the second pin hole 31b on the first connecting plate 2a and exits from the second pin hole 31b on the second connecting plate 2b; the third pin shaft 43 passes through the third pin hole 31c on the first connecting plate 2a and exits from the third pin hole 31c on the second connecting plate 2b; the fourth pin shaft 44 passes through the fourth pin hole 31d on the first connecting plate 2a and exits from the fourth pin hole 31d on the second connecting plate 2b.

[0074] The detachable connection method between the pin shaft 4 and the pin hole 3 is not only convenient for assembly and maintenance, but also enhances the strength and reliability of the overall structure through the tight fit between the pin shaft 4 and the roller connecting plate 2. This structure can effectively prevent the sliding parts from falling off or loosening during strenuous movements, ensuring the safety of using fitness equipment.

[0075] The first pin shaft 41, the second pin shaft 42, the third pin shaft 43, and the fourth pin shaft 44 are all parallel to the roller shaft 1, so that the external engagement fittings can selectively engage with the first pin shaft 41 or the second pin shaft 42 or the third pin shaft 43 or the fourth pin shaft 44 to form a connection structure that can rotate relative to or be fixed relative to each other.

[0076] The four parallelly arranged pin shafts 4 provide diverse engagement options for the external engagement fittings. According to different fitness equipment or training requirements, the appropriate pin shaft 4 can be selected for connection to achieve a connection that can rotate relative to or be fixed relative to each other, meeting the needs of personalized training configuration. This design has high flexibility and can adapt to the installation of more types of fitness equipment, expanding the application range of the product.

[0077] Such as Figure 2 , Figure 17 and Figure 18As shown, the sliding connector further includes a pair of through holes 21, which are respectively arranged in the middle of the first connecting plate 2a and the second connecting plate 2b; a fixing shaft 6, which is detachably passed through the through hole 21 on the first connecting plate 2a of the sliding connector, the fixing hole 51 on the support column 5, and the through hole 21 on the second connecting plate 2b in sequence through the fixing shaft 6. When the fixing shaft 6 is installed, the sliding connector can be fixed at the selected position on the support column 5. When the fixing shaft 6 is disassembled, the sliding connector can slide away from the selected position on the support column 5. By arranging a pair of through holes 21 in the middle of the first connecting plate 2a and the second connecting plate 2b respectively, and using the fixing shaft 6 as a connecting medium, the quick and convenient installation and disassembly between the sliding connector and the support column 5 are realized. This structure allows the user to easily adjust the specific height of the sliding connector according to needs, increases the flexibility and adaptability of the fitness equipment, and meets the changes in different training scenarios and user requirements. When the fixing shaft 6 is installed in place, the sliding connector is stably fixed at the selected position on the support column 5, ensuring the stability and safety during various training movements. And when it is necessary to adjust the position or perform maintenance, simply disassemble the fixing shaft 6, and the sliding connector can slide away from its original position, improving the convenience of use and the efficiency of equipment maintenance.

[0078] The diameters of the through holes 21 on the roller shaft connecting plate 2 are all larger than the diameter of the fixing hole 51 on the support column 5, ensuring that during the installation process, the fixing shaft 6 can pass through smoothly without obstruction, and at the same time leaving room for future upgrades or replacement of support columns of different specifications, enhancing the compatibility of the system and the flexibility of long-term use.

[0079] The lower sides of the first connecting plate 2a and the second connecting plate 2b are provided with upwardly curved grooves 22. When the sliding connector contacts the stop safety pin shaft 17 on the support column 5 during downward movement, the curved grooves 22 can increase the contact area between the roller shaft connecting plate and the safety pin shaft 17. The design of the curved grooves on the lower sides of the two roller shaft connecting plates 2 can effectively disperse the acting force and reduce the local pressure by increasing the contact area when the sliding connector moves downward and contacts the safety pin shaft 17 on the support column 5, thereby reducing wear, extending the service life of the parts, and increasing the stability of the overall structure, ensuring the smoothness and safety during the movement process.

[0080] Embodiment 2

[0081] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7As shown, according to the embodiment of the present application, a sliding member and an external joint accessory for a fitness equipment support column are provided, and the specific structure of the roller shaft 1 and the roller shaft connecting plate 2 of the sliding member is the same as that of the embodiment 1, wherein two rib plates 8 are arranged at intervals on the outer plate surface of one roller shaft connecting plate 2, namely the first connecting plate 2a or the second connecting plate 2b, and the two rib plates 8 can be the first rib plate 8a and the second rib plate 8b, respectively, and the first rib plate 8a and the second rib plate 8b are arranged parallel to each other. A corresponding fifth pin hole 32a is arranged on the first rib plate 8a and the second rib plate 8b, and the fifth pin shaft 45 penetrates from the fifth pin hole 32a of the second rib plate 8b and passes out from the fifth pin hole 32a of the first rib plate 8a, and the fifth pin shaft 45 is parallel to the roller shaft connecting plate 2 and perpendicular to the roller shaft 1, so that the external joint accessory is engaged with the fifth pin shaft 45 to form a connection structure that is either relatively rotatable or relatively fixed.

[0082] A first rib plate 8a and a second rib plate 8b are added to the outer plate surface of a roller connecting plate 2 of the sliding connection. This design significantly enhances the structural strength of the connecting plate through the reinforcement effect of the rib plates, making it more stable when bearing the forces generated during the use of the fitness equipment, such as tension, pressure, torsion, etc., reducing the risk of deformation of the sliding connection, thereby improving the stability and durability of the entire sliding connection and even the fitness equipment.

[0083] The fifth pin hole 32a is provided on the first rib plate 8a and the second rib plate 8b, and the external joint accessories are connected through the fifth pin shaft 45 to form a new joint point. Not only the connection method between the sliding part and the external accessories is increased, but also the setting of the fifth pin shaft 45 enables the external joint accessories to form a relative rotation or fixed connection with the fifth pin shaft 45, which greatly enhances the flexibility and adaptability of the fitness equipment assembly. Users can flexibly select the connection method according to different training needs to meet various training scenarios.

[0084] Optimizing space utilization and aesthetics: The first rib plate 8a and the second rib plate 8b are arranged in parallel and opposite to each other, and the fifth pin hole 32a and the fifth pin shaft 45 are arranged perpendicular to the roller shaft 1, which optimizes the space utilization of the sliding member, making the entire structure more compact while maintaining a neat and beautiful appearance. This design is conducive to realizing more functions in a limited space, and also makes the overall fitness equipment more coordinated and harmonious, improving the user experience.

[0085] Example 3

[0086] like Figure 2 , Figure 3 , Figures 6 to 9As shown, according to an embodiment of the present application, a sliding system for a support column of a fitness equipment is provided, including a sliding member and an external engagement fitting attached to the sliding member; the sliding member includes four rollers 1, namely a first roller 1a, a second roller 1b, a third roller 1c, and a fourth roller 1d. The first roller 1a, the second roller 1b, the third roller 1c, and the fourth roller 1d have spaced gaps and are arranged parallel to each other in pairs; a channel M through which the support column 5 can pass is formed between two adjacent rollers. The first roller 1a, the second roller 1b, the third roller 1c, and the fourth roller 1d can all roll or slide on the outer surface of the support column. The sliding system is designed with four parallel rollers 1, allowing the support column 5 of the fitness equipment to slide or roll smoothly in the up and down direction, increasing the flexibility of the equipment, and being able to adapt to the body conditions of different users such as height and arm span, as well as different training postures and intensity requirements, enhancing the user experience.

[0087] The two roller connecting plates 2 are respectively a first connecting plate 2a and a second connecting plate 2b. The first connecting plate 2a and the second connecting plate 2b are respectively connected to both ends of the first roller 1a, the second roller 1b, the third roller 1c, and the fourth roller 1d. The first connecting plate 2a and the second connecting plate 2b are arranged parallel to each other. The first connecting plate 2a and the second connecting plate 2b are provided with four corresponding pairs of pin holes 3. The first pair of pin holes is the first pin hole 31a; the second pair of pin holes is the second pin hole 31b; the third pair of pin holes is the third pin hole 31c; the fourth pair of pin holes is the fourth pin hole 31d.

[0088] Each pair of pin holes 3 is arranged at an interval from the roller 1 closest to it. The pin holes 3 are all arranged on the left and right sides of the first connecting plate 2a and the second connecting plate 2b. The pin shaft 4 is detachably connected to the roller connecting plate 2. The pin shaft 4 includes a first pin shaft 41, a second pin shaft 42, a third pin shaft 43, and a fourth pin shaft 44.

[0089] The first pin shaft 41 passes through the first pin hole 31a on the first connecting plate 2a and exits through the first pin hole 31a on the second connecting plate 2b; the second pin shaft 42 passes through the second pin hole 31b on the first connecting plate 2a and exits through the second pin hole 31b on the second connecting plate 2b. The first pin shaft 41, the second pin shaft 42, the third pin shaft 43 and the fourth pin shaft 44 are all parallel to the roller shaft 1. The external engagement fitting can be selected as the dip bar fitting 14, one end of which has a clamping member 7. Two cylindrical bodies 15 are arranged on one side of the dip bar fitting 14. The upper part of the clamping member 7 has a hook member 71. When the dip bar fitting 14 is engaged with the sliding member, the hook member 71 hooks the third pin shaft 43. At the same time, the lower part of the clamping member 7 has a corresponding pair of seventh pin holes 33a. The fourth pin shaft 44 passes through the third pin hole 31c on the first connecting plate 2a, then passes through a pair of seventh pin holes 33a of the clamping member 7, and exits through the third pin hole 31c on the second connecting plate 2b, so as to realize a relatively fixed connection structure when the dip bar fitting is engaged with the sliding member. The sliding member and the dip bar fitting 14 are connected by the standardized pin holes 3 and the pin shafts 4, realizing a modular design. This not only simplifies the installation process, enables the user to quickly replace or adjust the fittings according to personal training needs, but also facilitates maintenance and upgrading, improving the maintainability and expandability of the system.

[0090] The clamping member 7 of the dip bar fitting 14 is detachably connected. The cooperation between the hook member 71 and the third pin shaft 43, and the locking between a pair of seventh pin holes 33a and the fourth pin shaft 44 form a stable connection structure. This structure ensures that the connection between the fitting and the sliding member is stable and reliable during high-intensity arm flexion and extension training, effectively avoiding loosening or falling off during use and improving the safety of training.

[0091] Embodiment 4

[0092] As Figure 2 、 Figure 3 、 Figure 10 、 Figure 11 shown, according to the embodiment of the present application, a sliding system for a support column of a fitness equipment is provided, which includes a sliding member and an external engagement fitting attached to the sliding member; the specific structures of the sliding member, the pin shaft 4 and the pin hole 3 are the same as those in Embodiment 3. The external engagement fitting can be selected as the lateral raise fitting 11, which includes two left and right lateral raise fittings. Each lateral raise fitting 11 includes a cylindrical body 15 and a weight plate 16 detachably sleeved on the cylindrical body 15. The connecting end of each lateral raise fitting 11 is provided with a clamping member 7, and a pair of eighth pin holes 34a are arranged at its end. The eighth pin hole 34a of the clamping member 7 on one of the lateral raise fittings 11 cooperates with the first pin shaft 41.

[0093] The first pin shaft 41 penetrates through the first pin hole 31a on the first connecting plate 2a, then through the eighth pin hole 34a of the clamping member 7, and then penetrates out through the first pin hole 31a on the second connecting plate 2b. The third pin shaft 43 penetrates through the third pin hole 31c on the first connecting plate 2a, then through the eighth pin hole 34a of the clamping member 7, and then penetrates out through the third pin hole 31c on the second connecting plate 2b, so as to realize that the left and right lateral raising accessories are respectively engaged with the sliding member to form a relatively rotatable connection structure. This sliding system further expands the functionality of the lateral raising accessories 11 of the fitness equipment, which is specifically designed for the lateral raising movement for shoulder muscle exercise.

[0094] The first pin hole 31a and the third pin hole 31c are on the same horizontal plane; the second pin hole 31b and the fourth pin hole 31d are on the same horizontal plane, so that the first pin shaft 41 and the third pin shaft 43 are arranged parallel and opposite to each other. When performing lateral raises, it is very important to ensure that the movements on both sides are consistent. This structure ensures that during the training process of the user, the movement trajectories and angles on both sides are the same, which helps to form correct exercise habits. When the pin shafts on both sides are on the same horizontal plane, it can ensure that the movement trajectories on both sides of the user are consistent during the lateral raise, reducing the risk of sprains or other sports injuries that may be caused by imbalance on both sides. This structure ensures the consistency and balance of the movements on both sides during the training process, which helps to improve the safety, effectiveness of the training and the user experience.

[0095] This provides a more professional and targeted training tool for the user, increases the diversity of training, and meets the needs of different fitness enthusiasts or professional athletes for personalized training. Each accessory of the lateral raising accessory 11 includes a columnar body 15 and a detachable sleeved weight plate 16. The user can freely adjust the load weight according to their own training intensity and ability, increasing the flexibility and convenience of training. This design can be quickly adjusted without tools, improving the training efficiency and user experience.

[0096] A stable and rotatable connection mechanism, through the cooperation of the eighth pin hole 34a on the clamping member 7 with the first pin shaft 41 and the third pin shaft 43, realizes a stable connection between the lateral raising accessory 11 and the sliding member, and at the same time allows the accessory to rotate relatively within a certain range, which helps to improve the training effect, reduce joint pressure, and ensure the safety and comfort of the training.

[0097] The connection method of the lateral raising accessory 11 matches the general design of the sliding member, continuing the modular design concept of Embodiment 3, making the replacement, upgrade or maintenance of the accessory simple and fast. This design not only facilitates the user to adjust according to the changes in training needs, but also facilitates after-sales service and maintenance management during long-term use.

[0098] Embodiment 5

[0099] AsFigure 3 , Figure 4 , Figure 12 , Figure 13 As shown in Figure 3 , Figure 4 , Figure 12 , and Figure 13 , according to an embodiment of the present application, a sliding system for a support column of a fitness equipment is provided, which includes a sliding member and an external joint fitting attached to the sliding member; the specific structures of the pin shaft 4, pin hole 3, and rib plate 8 on the sliding member are the same as those in Embodiment 2. The external joint fitting is selected as a tubular fitting 13, one end of which is provided with a clamping member 7, and the end thereof is provided with a cylindrical connection structure. The fifth pin shaft 45 can pass through the cylindrical structure of the clamping member 7, so that the connection between the tubular fitting 13 and the sliding member forms a connection structure that can rotate relatively left and right.

[0100] The external joint fitting is a tubular fitting 13. This sliding system provides users with a new training method, especially for strength training and core muscle group exercises. Tubular fittings are usually used for rotational strength exercises such as cannon barrel presses and Russian twists, increasing the diversity of training and enhancing the professionalism of training. The tubular fitting 13 is connected to the fifth pin shaft 45 of the sliding member through the clamping member 7 at one end thereof, and the left and right rotational connection method is realized by using the cylindrical connection structure. This not only ensures the stability of the connection, but also allows the cannon barrel to rotate freely during use, simulating a more natural and smooth movement trajectory, improving the training efficiency and exercise experience. In view of the fact that the pin shaft, pin hole, and rib plate structure follow the design of Embodiment 2, the stability and safety of the entire system are ensured. This design enables the tubular fitting to effectively disperse the pressure when bearing high-load training, reducing the wear at the connection and potential failure risks, and ensuring the safety of users during high-intensity training.

[0101] The use of the cylindrical connection structure simplifies the installation process of the tubular fitting and the sliding member. During use, the fitting can be quickly installed or replaced according to training needs without complex tools or professional knowledge. In addition, this structure provides the possibility of fine-tuning the joint fitting. Users can move the sliding member according to personal habits or exercise movements to adjust the height of the tubular fitting 13, increasing the flexibility of use. The training through the tubular fitting 13 focuses on enhancing the strength and stability of the core muscle group, which is of great significance for promoting the balanced development of the whole body muscles and improving sports performance. The addition of this fitting enables the fitness equipment to more comprehensively cover the multi-directional training needs from the upper limbs to the core and then to the lower limbs.

[0102] Embodiment 6

[0103] As Figure 2 , Figure 3 , Figures 14 to 16As shown, according to an embodiment of the present application, a sliding system for a support column of a fitness equipment is provided, which includes a sliding member and an external joint fitting attached to the sliding member; the specific structures of the pin shaft 4, the pin hole 3, and the rib plate 8 on the sliding member are the same as those in Embodiment 1. The external joint fitting is selected as the leg flexion and extension fitting 12, which includes a columnar member 15 and a weight plate 16. The end of the leg flexion and extension fitting 12 further includes a clamping member 7, and the end of the clamping member 7 is provided with an eighth pin hole 34a. The third pin shaft 43 passes through the third pin hole 31c on the first connecting plate 2a, penetrates into the eighth pin hole 34a of the clamping member 7, and then passes out from the third pin hole 31c on the second connecting plate 2b, so as to realize the connection structure in which the leg flexion and extension fitting 12 and the sliding member are joined to form a relatively rotatable structure.

[0104] The external joint fitting is the leg flexion and extension fitting 12. This sliding system adds a special training function for the leg muscle group to the fitness equipment, especially strengthens the flexion and extension exercises of the front and back muscles of the thigh, enriches the training options of users, and meets the needs of comprehensive whole-body exercise. The leg flexion and extension fitting 12 is designed with a columnar member 15 and a detachable weight plate 16. Users can adjust the training resistance by increasing or decreasing the number of weight plates according to their own training intensity requirements. This design provides a personalized training experience and is suitable for exercisers with different physical fitness levels. Through the cooperation of the third pin shaft 43 and the eighth pin hole 34a on the clamping member 7, a connection structure that can not only stably support but also allow relative rotation is formed between the leg flexion and extension fitting 12 and the sliding member. Such a structure ensures that during the leg flexion and extension movement, the comfort and efficiency of training are improved, and the risk of sports injuries is reduced. At the same time, the added modular and interchangeable design, that is, the leg flexion and extension fitting 12 as an external joint fitting of the sliding member, is compatible with the general structure of the sliding member, namely the pin shaft 4, the pin hole 3, the rib plate 8, etc., reflecting the modular and interchangeable concept of the design. Users can easily replace different fittings according to different training schedules or personal preferences, such as switching from the lateral raise fitting to the leg flexion and extension fitting, increasing the flexibility and long-term use value of the equipment. The general interface of the sliding member is fully utilized, and new training functions can be added without significantly modifying the main body of the fitness equipment. This not only simplifies the process of equipment upgrade but also effectively saves the gym or home training space, making the space utilization more efficient.

[0105] Embodiment 7

[0106] As Figure 2 、 Figure 3 、 Figure 17 and Figure 18As shown, according to an embodiment of the present application, a sliding system for a support column of a fitness equipment is provided, which includes a sliding member and an external joint fitting attached to the sliding member; the related fittings of the sliding member are the same as those in Embodiment 3, and the external joint fitting is selected as a bench press pipe fitting 9, one end of which is provided with a clamping member 7. The bench press pipe fitting 9 can be sleeved with a barbell plate 16. The upper part of the clamping member 7 has a hook member 71. When engaging with the sliding member, the hook member 71 hooks the first pin shaft 41 and the third pin shaft 43. At the same time, the lower part of the clamping member 7 has a corresponding pair of seventh pin holes 33a. The fourth pin shaft 44 passes through the third pin hole 31c on the first connecting plate 2a, then passes through the pair of seventh pin holes 33a of the clamping member 7, and passes out from the third pin hole 31c on the second connecting plate 2b. Thus, the bench press pipe fitting 9 is engaged with the sliding member to form a relatively fixed connection structure.

[0107] The external joint fitting is the bench press pipe fitting 9. This sliding system is optimized for the training of upper body muscle groups such as the chest, shoulders, and arms, especially enhancing the implementation effect of the classic fitness movement of bench press. As a classic training method for enhancing upper body strength and muscle mass, this design directly meets the needs of users for professional-level bench press training at home or in the gym. The bench press pipe fitting 9 disclosed in Embodiment 7 ensures a stable connection between the pipe fitting and the sliding member during the bench press through the tight combination of the hook member 71 on the clamping member 7 with the first pin shaft 41 and the third pin shaft 43, and the penetration design of the seventh pin holes 33a and the fourth pin shaft 44. This dual locking mechanism not only enhances the stability during training but also greatly improves safety, preventing accidental loosening during high-intensity training and protecting the safety of users. The bench press pipe fitting 9 is designed with a barbell plate 16 that can be sleeved. Users can easily adjust the load weight according to their own training intensity and progress, realizing personalized and dynamic adjustment of training. This design improves the flexibility of training, enables the fitness equipment to adjust with the growth of users, and extends the applicable cycle of the product.

[0108] As an external fitting of the sliding member system, the bench press pipe fitting 9 can be quickly installed and disassembled, and is compatible with the sliding member system of Embodiment 3, reflecting the modularity and interchangeability of the design. This design not only saves space but also allows users to quickly switch training modes according to different training needs, increasing the versatility and practicality of the fitness equipment. Through precise connection structure design, the bench press pipe fitting 9 can provide a smooth and stable movement trajectory during use, reducing friction and vibration during the movement process, and improving the training comfort of users. At the same time, the stable connection structure also ensures the accuracy of training actions, helping to improve training efficiency and effect.

[0109] Embodiment 8

[0110] As Figure 3 、 Figure 4 、 Figure 19 andFigure 20 As shown, a sliding system for a support column of a fitness equipment is provided, which includes a sliding member and an external joint fitting attached to the sliding member; the sliding member and related fittings are the same as those in Embodiment 2, and the external joint fitting is selected as the pulley assembly 10. A clamping member 7 is provided at one end thereof, and a sixth pin shaft 46 can pass through the pluggable structure of the clamping member 7, so that the joint between the pulley assembly 10 and the sliding member forms a connection structure that can rotate relatively left and right.

[0111] The external joint fitting is the pulley assembly 10. This system can support more types of rope pulling training, such as resistance band training, cable rowing, etc. These trainings mainly target the comprehensive development of the back, shoulders and arm muscles, enrich the training options of users, and enhance the versatility of the fitness equipment. A clamping member 7 is designed at one end of the pulley assembly 10, and its end is configured as a pluggable structure, which can plug and connect the pulley assembly 10 with the sliding member through the sixth pin shaft 46, realizing the left and right rotation of the pulley assembly relative to the sliding member.

[0112] As Figure 5 and Figure 21 shown, another sliding system for a support column of a fitness equipment is provided, which includes a sliding member and an external joint fitting attached to the sliding member; the sliding member and related fittings are the same as those in Embodiment 1. Two rib plates 8 are spaced on the outer plate surface of one of the roller connecting plates 2, that is, the first connecting plate 2a or the second connecting plate 2b. The two rib plates 8 can be the first rib plate 8a and the second rib plate 8b respectively. Corresponding fifth pin holes 32a and sixth pin holes 32b are provided on the first rib plate 8a and the second rib plate 8b. The fifth pin shaft 45 penetrates into the fifth pin hole 32a of the second rib plate 8b and penetrates out from the fifth pin hole 32a of the first rib plate 8a; the sixth pin shaft 46 penetrates into the sixth pin hole 32b of the second rib plate 8b and penetrates out from the fifth pin hole 32a of the first rib plate 8a. The fifth pin shaft 45 or the sixth pin shaft 46 is parallel to the roller connecting plate 2 and perpendicular to the four rollers 1, so that the external joint fitting is engaged with the fifth pin shaft 45 or the sixth pin shaft 46 to form a connection structure that can rotate or be fixed relatively. Figure 21 As shown, the external joint fitting is selected as another pulley assembly 10, and holes corresponding to the fifth pin hole 32a and the sixth pin hole 32b are provided at one end thereof. The pulley assembly 10 is connected to the first rib plate 8a and the second rib plate 8b through the fifth pin shaft 45 and the sixth pin shaft 46.

[0113] By adding a fifth pin hole 32a and a sixth pin hole 32b to the first rib plate 8a and the second rib plate 8b, and the fifth pin shaft 45 and the sixth pin shaft 46 that can be detachably connected in an insertable manner, the connection method between the sliding member and the pulley assembly 10 becomes more flexible and variable. The fifth pin shaft 45 and the sixth pin shaft 46 are parallel to the roller connecting plate 2 and at the same time perpendicular to the four rollers 1. This layout design not only optimizes the space utilization but also provides at least two different fixed or rotational connection points for external joining fittings, and the most suitable connection method can be selected according to different usage scenarios and requirements, improving the adaptability and functionality of the fitness equipment.

[0114] The settings of the first rib plate 8a and the second rib plate 8b itself enhance the rigidity of the connecting plate, and through the insertion and fixation of the fifth pin shaft 45 and the sixth pin shaft 46, the overall structural stability and load-bearing capacity are further improved. This design can better disperse and bear various stresses brought by external joining fittings, ensuring that the fitness equipment remains stable under high-intensity use and reducing potential safety hazards during use.

[0115] The standardized pin hole and pin shaft design makes the installation and replacement of external fittings simpler and faster. The pulley assembly 10 can extend directly above the user's head, suitable for performing high pulley rows to exercise the back. The user can easily adjust or replace the fittings according to needs, reducing the maintenance cost and time and improving the user experience. The fifth pin shaft 45 and the sixth pin shaft 46, as modular interfaces, enable external fittings with different functions to be quickly connected or replaced, providing more personalized customization services for users to meet diverse fitness needs and also making the fitness equipment modular.

[0116] This design allows the user to enjoy a smoother and more natural movement trajectory during cable training, reducing unnecessary resistance during the movement process and improving the comfort and efficiency of training. Through the combined design of the sixth pin shaft 46 and the pulley assembly 10, the user can adjust the position of the pulley assembly according to their own needs, changing the training angle and difficulty, thereby realizing personalized customization of training and meeting the training needs of fitness enthusiasts at different levels. Although the pulley assembly 10 increases the flexibility of movement, its stable connection with the sliding member, that is, through the locking mechanism of the sixth pin shaft 46, ensures stability during training and guarantees safety even during high-intensity tensile training, extending the service life of the equipment. The pulley assembly 10, as an external joining fitting, can be quickly installed and replaced and is compatible with the sliding member system in Embodiment 2. This modular design facilitates the user to quickly adjust the training module according to the training plan and also simplifies the maintenance and upgrade process.

[0117] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A sliding connector for a support column of a fitness equipment bracket, characterized in that, Comprising: A plurality of rollers, the plurality of rollers having spaced gaps and being arranged parallel to each other in pairs; a channel capable of passing through the support column is formed between two adjacent rollers, and each of the rollers can roll or slide on the outer surface of the support column; Two roller connecting plates, the plurality of rollers are arranged between the two roller connecting plates, and the two ends of the rollers are respectively connected to the two roller connecting plates; A plurality of pin shafts, which are detachably installed on the roller connecting plates, so that an external engaging fitting can selectively engage with the plurality of pin shafts to form a relatively rotatable or relatively fixed connection structure; At least two rib plates are spacedly arranged on the outer plate surface of the roller connecting plate, and a plurality of corresponding pairs of pin holes are arranged on the two spaced rib plates; the pin shafts can selectively penetrate into the pin holes of at least one of the rib plates, so that an external engaging fitting can selectively engage with the plurality of pin shafts to form a relatively rotatable or relatively fixed connection structure.

2. The sliding connector for the support column of a fitness equipment according to claim 1, wherein The two roller connecting plates are arranged parallel to each other, and a plurality of corresponding pairs of pin holes are arranged on the two roller connecting plates. The pin shafts can penetrate into the pin holes of the first roller connecting plate and penetrate out of the pin holes of the second roller connecting plate; The plurality of pin holes of each roller connecting plate are arranged on both sides of the roller connecting plate and at least two pin holes are on the same horizontal plane.

3. The sliding connector for the support column of the fitness equipment according to claim 1, characterized in that, Further comprising: At least one through hole, which is arranged in the middle of the roller connecting plate; A fixed shaft, by passing the fixed shaft through at least one through hole of the sliding connector, the sliding connector is fixed at a selected position of the support column.

4. The sliding connector for the support column of a fitness equipment according to claim 1, wherein The lower sides of the two roller connecting plates are provided with upwardly curved grooves. When the roller connecting plates contact the safety pin shafts on the support column during downward movement, the bent portions of the grooves increase the contact area between the roller connecting plates and the safety pin shafts.

5. A sliding system for a support column of a fitness equipment bracket, characterized in that, Comprising a sliding connector and an engaging fitting attached to the sliding connector; The sliding connector comprises: A plurality of rollers, the plurality of rollers having spaced gaps and being arranged parallel to each other in pairs; a channel capable of passing through the support column is formed between two adjacent rollers, and the plurality of rollers can all roll or slide on the outer surface of the support column; Two roller connecting plates, the plurality of rollers are arranged between the two roller connecting plates, and the two ends of the rollers are respectively connected to the two roller connecting plates; A plurality of pin shafts, which are detachably installed on one or two of the roller connecting plates; The engaging fitting comprises: A plurality of clamping members, one end of the clamping member has an engaging structure with the plurality of pin shafts, so that the clamping member can selectively engage with the plurality of pin shafts to form a relatively rotatable or relatively fixed connection structure.

6. The sliding system for the support column of a fitness equipment according to claim 5, wherein At least two rib plates are spacedly arranged on the outer plate surface of the roller shaft connecting plate. A plurality of corresponding pairs of pin holes are provided on the two spaced rib plates. The pin shaft can be selectively inserted into the pin holes of at least one of the rib plates, so that the external engagement fitting can selectively form a connection structure that can rotate or be fixed relative to the engagement with a plurality of the pin shafts.

7. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement structure of the clamping member can be selectively a pin hole or / and a hook member. The clamping member engages with the pin shaft on the sliding member through the pin hole or the hook member to form a connection structure that can rotate or be fixed relative to each other.

8. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement fitting further includes a bench press pipe fitting, which is connected with a clamping member, and one or more weight plates can be selectively sleeved on the bench press pipe fitting.

9. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement fitting further includes a pulley assembly, which is connected with the clamping member, and the pulley assembly is slidably connected with a steel wire rope.

10. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement fitting further includes a lateral raise fitting, which is connected with the clamping member, and the lateral raise fitting includes one or more pipe fittings, and one or more weight plates can be selectively sleeved on each pipe fitting.

11. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement fitting further includes a leg curl fitting, which is connected with the clamping member, and the leg curl fitting includes one or more pipe fittings, and one or more weight plates can be selectively sleeved on each pipe fitting.

12. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement fitting further includes a tubular fitting, which is connected with the clamping member, and the tubular fitting can selectively sleeve a rod body, and one or more weight plates can be selectively sleeved on the rod body.

13. The sliding system for the support column of a fitness equipment according to claim 5, wherein The engagement fitting further includes a parallel bar dip fitting, which is connected with the clamping member, and one or more cylindrical members are connected to the outer arm of the parallel bar dip fitting.

14. The sliding system for the support column of a fitness equipment according to claim 5, wherein The lower sides of the two roller shaft connecting plates are provided with upwardly curved grooves. When the roller shaft connecting plate contacts the safety pin shaft on the support column during downward movement, the bent portion of the groove increases the contact area between the roller shaft connecting plate and the safety pin shaft.

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