A fracture-resistant seamless main rod for fitness equipment and its installation method

The seamless main rod design and staggered screw fixation solve the problem of easy breakage and deformation of the main rod of fitness equipment, achieve stable connection and convenient disassembly, and improve the use and transportation performance of fitness equipment.

CN115591212BActive Publication Date: 2025-09-19HUZHOU LANGTU ALLOY TECH CO LTD
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Patent Information

Application Number
CN202211143830.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-09-20
Publication Date
2025-09-19
Estimated Expiration
2042-09-20

AI Technical Summary

Technical Problem

The main poles of existing fitness equipment are prone to breakage and deformation at the joints and are easily damaged during transportation, and are unable to effectively disperse the force and prevent loosening.

Method used

It adopts a seamless main rod design with internal fixing blocks and stops, which are fixed by threaded connections and staggered spring screws. Combined with buffer pads and press/locking mechanisms, it achieves stable connection and force dispersion.

Benefits of technology

It effectively prevents deformation and breakage of the main rod connection, increases the force-bearing area, facilitates disassembly and transportation, reduces material consumption, and improves the use effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This patent relates to the technical field of fitness equipment, and more particularly, to a fracture-resistant seamless main rod for fitness equipment and its installation method. It comprises a main rod, which is hollow inside, and a fixing block fixedly installed by threads on the connecting sections of the two main rods. A stopper is sleeved on the outer end of the fixing block, and the main rod connecting sections abut against the stopper. The installation method involves threading the main rod and the fixing block together. First, the stopper is sleeved on the middle portion of the fixing block. Then, the two ends of the two main rods are positioned opposite each other, abutting against the sides of the stopper. Finally, screws are used to secure the main rod and the fixing block. This main rod and its installation method can disperse force during use, achieve pressure buffering, and effectively prevent deformation and fracture at the connection.
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Description

Technical Field

[0001] The patent of this invention relates to the technical field of fitness equipment, and in particular to a fracture-resistant seamless main rod for fitness equipment and an installation method thereof. Background Art

[0002] As people's living standards continue to improve, they're increasingly focused on their health. Various fitness exercises are booming, and a wide range of fitness equipment has emerged. For training back, chest, and arm muscles, fitness equipment often consists of pullers that apply outward force to resist. At the same time, we also need pullers that apply inward force to resist. Existing puller main rods are either integrally formed, without a partition in the middle, which can easily lead to uneven force application during exercise; or they are made of two spliced ​​rods, but this requires consideration of whether the splicing will break or deform during use. Summary of the Invention

[0003] (1) Problems to be solved

[0004] The invention is mainly used to solve the problems of easy breakage and deformation of the main rod of fitness equipment during use when the main rod is spliced ​​and assembled, and provides a fracture-proof seamless main rod for fitness equipment and an installation method thereof.

[0005] (2) Technical solution

[0006] According to a first aspect of the present invention, a fracture-resistant seamless main rod for fitness equipment is provided, comprising a main rod, the interior of the main rod being hollow, and two main rod connecting sections having fixed blocks fixedly installed thereon by internal threads, a stop block being sleeved on the outer end of the fixed block, and the main rod connecting section abutting against the stop block.

[0007] As an optimal technical solution, threaded through holes are respectively opened at the connecting ends of the main rod, holes are opened horizontally inside the fixed block, and threaded through holes are opened at the connecting surface between the fixed block and the main rod. The threaded through holes opened at the connecting ends of the main rod and the threaded through holes opened in the fixed block are in a coaxial position.

[0008] As a preferred technical solution, a groove is provided in the middle of the fixing block, a raised buckle is integrally formed inside the groove, a fixed track is provided on the surface of the fixing block, and a raised guide block is provided inside the main rod.

[0009] As a preferred technical solution, the fixed track is "L-shaped" and distributed symmetrically around the center.

[0010] As a preferred technical solution, the stopper is sleeved in the middle of the fixed block, and buffer pads are fixedly installed on both sides of the stopper. The outer ring size of the stopper should be larger than the outer ring size of the main rod.

[0011] As a preferred technical solution, the stopper is an integrally formed ring, with button holes opened at the upper and lower ends of the stopper, and a pressing and pushing mechanism is provided in the hole;

[0012] The pressing and pushing mechanism includes a button and a pull rod. The button is inserted into the button hole. A reset spring is fixedly installed on the top of the button. The other end of the reset spring is fixedly installed on the surface of the block. A heart-shaped groove is opened on the side of the button. A pull rod is rotatably installed inside the button hole. One end of the pull rod is fixed and rotatably installed inside the button hole, and the other end is placed in the heart-shaped groove in a hook shape.

[0013] As a preferred technical solution, the stopper can be a ring buckle formed by hinged upper and lower parts, and the connection is a locking mechanism;

[0014] The locking mechanism includes a lock hole and a lock buckle. The upper ring buckle is integrally formed with the lock buckle, and the lower ring buckle is integrally formed with the lock hole. The lock buckle has a raised snap-on part, which is inserted into the corresponding lock hole, and the snap-on part is clamped with the lock hole.

[0015] According to the second aspect of the present invention, a method for installing a fracture-resistant seamless main rod for fitness equipment is provided. The method is to fix the main rod and the fixed block by means of threads. First, the block is sleeved on the middle part of the fixed block, and then the two ends of the two main rods are placed opposite each other and respectively abut against the side faces of the block. Finally, the main rod and the fixed block are fixed using spring screws.

[0016] As a preferred technical solution, adjacent spring screws need to be installed in an up-down staggered manner during installation.

[0017] (3) Beneficial effects

[0018] The beneficial effects of the present invention are:

[0019] (1) The two main rods are fixed with a fixing block inside the joint to ensure a stable installation and connection of the main rods. When the main rods and the fixing block are screwed together, the adjacent spring screws are installed in an up-down staggered manner, which can disperse the force during use and effectively prevent deformation and breakage at the connection. The spring screws can also effectively prevent loosening during use, ensuring stability.

[0020] (2) The two main rod mounting ends are against the block, which increases the force-bearing area. At the same time, cushions are installed on both sides of the block to achieve pressure buffering during fitness use, thereby preventing the main rod from breaking.

[0021] (3) The block can be flexibly set and can be installed and disassembled by yourself. In the past, the main pole that was too long was often easily broken, crushed and damaged during transportation. This design is convenient for carrying and transportation.

[0022] (4) The main rod and the fixed block are hollow at the places without threaded holes, which reduces the use of materials and the weight. The user can accurately find the force point and improve the use effect of the fitness equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the external installation of the present invention;

[0026] Figure 3 is an installation cross-sectional view of the present invention;

[0027] Figure 4 It is a schematic diagram of the fixed block structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the block pressing and advancing of the present invention;

[0029] Figure 6 It is a structural schematic diagram of the pressing and propelling mechanism of the present invention;

[0030] Figure 7 It is a schematic diagram of the block lock of the present invention;

[0031] 1-main rod; 2-fixing block; 3-stop block; 4-groove; 5-hole; 6-raised buckle; 7-fixing track; 8-pressing and pushing mechanism; 9-button; 10-reset spring; 11-heart-shaped groove; 12-pull rod; 13-locking mechanism; 14-locking buckle; 15-locking hole. DETAILED DESCRIPTION

[0032] The present invention will further illustrate an anti-fracture seamless main rod for fitness equipment and an installation method thereof with reference to the accompanying drawings.

[0033] As shown in the attached figure, a seamless main rod with anti-fracture properties for fitness equipment includes a main rod 1. The main rod 1 is hollow inside, and a fixing block 2 is fixedly installed with internal threads in the connecting sections of the two main rods 1. A stopper 3 is provided on the outer end of the fixing block 2, and the connecting section of the main rod 1 is against the stopper 3.

[0034] Furthermore, threaded holes are provided at the connecting ends of the main rod 1, and a hole 5 is provided transversely inside the fixing block 2. Furthermore, a threaded hole is provided at the connecting surface between the fixing block 2 and the main rod 1. The threaded hole provided at the connecting end of the main rod 1 and the threaded hole provided in the fixing block 2 are coaxially located. These threaded holes are used for accurate positioning and installation of spring screws.

[0035] Furthermore, the fixing block 2 has a groove 4 formed in the center, with a protruding buckle 6 integrally formed within the groove 4. A fixing track 7 is formed on the surface of the fixing block 2. A protruding guide block is provided within the main rod 1. This guide block inserts into the fixing track 7, further stabilizing the fixing block 2 and the main rod 1 and preventing it from slipping out.

[0036] Furthermore, the fixed track 7 is L-shaped and symmetrically distributed around the center, which makes it easy to rotate and fix.

[0037] Furthermore, the stopper 3 is sleeved in the middle of the fixed block 2, and cushion pads are fixedly installed on both sides of the stopper 3. The outer ring size of the stopper 3 should be larger than the outer ring size of the main rod 1. The cushion pads can achieve pressure buffering during fitness use, thereby preventing the main rod from breaking.

[0038] Furthermore, the stopper 3 is an integrally formed ring, and button holes are provided at the upper and lower ends of the stopper 3, and a pressing and pushing mechanism 8 is provided in the hole;

[0039] The push-to-push mechanism 8 includes a button 9 and a pull rod 12. The button 9 is inserted into the button hole. A return spring 10 is fixedly mounted on the top of the button 9. The other end of the return spring 10 is fixedly mounted on the surface of the block 3. A heart-shaped groove 11 is opened on the side of the button 9. The pull rod 12 is rotatably mounted inside the button hole. One end of the pull rod 12 is fixedly rotatably mounted inside the button hole, and the other end is hooked and placed in the heart-shaped groove 11. This design can achieve push-to-push installation conveniently and quickly, and is simple to operate.

[0040] Furthermore, the stopper 3 may be a ring buckle formed by hinged upper and lower parts, with a locking mechanism 13 at the connection point;

[0041] The locking mechanism 13 includes a locking hole 15 and a locking buckle 14. The upper ring buckle is integrally formed with the locking buckle 14, while the lower ring buckle is integrally formed with the locking hole 15. The locking buckle 14 has a raised locking portion that fits neatly into the corresponding locking hole 15, and the locking portion is locked with the locking hole 15. This design allows for convenient and quick installation of the locking buckle and is simple to operate.

[0042] As shown in the attached figure, this is a method for installing a fracture-resistant seamless main rod for fitness equipment. The method is to fix the main rod 1 and the fixed block 2 with threads. First, the stop block 3 is placed on the middle part of the fixed block 2, and then the two ends of the two main rods 1 are placed opposite each other and respectively abut against the side surfaces of the stop block 3. Finally, the main rod 1 and the fixed block 2 are fixed with spring screws.

[0043] Furthermore, adjacent spring screws need to be installed in an up-down staggered manner during installation. When adjacent screws are installed in an up-down staggered manner, the force can be dispersed during use, effectively preventing deformation and breakage at the connection, and the spring screws can effectively prevent loosening during use, ensuring stability.

[0044] The principle of the present invention is as follows: Figure 1-3 First, place the stopper 3 over the middle of the fixing block 2. Then, position the two main rods 1 so that their ends touch the left and right sides of the stopper 3, which has cushioning pads on the sides. Insert the raised guide block inside the main rod 1 into the fixing track 7 and rotate it to secure it. Finally, use spring screws to secure the main rods 1 to the fixing block 2, with adjacent spring screws staggered vertically.

[0045] There are two main methods for installing the stopper 3:

[0046] Example 1, refer to the attached Figure 5-6 The stopper 3 is sleeved on the middle part of the fixed block 2 and is installed by pressing. The pressing and pushing mechanism 8 includes a button 9 and a pull rod 12. The button 9 is inserted into the button hole. A return spring 10 is fixedly installed on the top of the button 9. The other end of the return spring 10 is fixedly installed on the surface of the stopper 3. A heart-shaped groove 11 is opened on the side of the button 9. A pull rod 12 is rotatably installed inside the button hole. One end of the pull rod 12 is fixed and rotatably installed inside the button hole, and the other end is hooked and placed in the heart-shaped groove 11. First, the stopper 3 is put on the fixed block. When the position of the button 9 is exactly opposite to the position of the groove 4 opened in the middle of the fixed block 2, the user presses the button 9 to displace the button 9 and the heart-shaped groove 11 downward, so that the pull rod 12 slides along the route a inside the heart-shaped groove 11. When it reaches the lowest point, the pull rod 12 is stuck in the heart-shaped groove 11. At this time, the bottom end of the button 9 is inserted into the groove 4, fixing the stopper 3 in the middle part of the fixed block 2; press the button 9 again to displace the button 9 and the heart-shaped groove 11 downward, so that the pull rod 12 slides along the route b inside the heart-shaped groove 11, and the button 9 is driven to move upward with the help of the reset spring 10. At this time, the bottom end of the button 9 is out of the groove 4, which is convenient for disassembly of the stopper 3.

[0047] Example 2, reference Figure 7 The stopper 3 is sleeved on the middle part of the fixed block 2 and is installed using a lock-and-snap installation method. The lock mechanism 13 includes a lock hole 15 and a lock 14. The upper half of the ring buckle is integrally formed with the lock 14, and the lower half of the ring buckle is integrally formed with the lock hole 15. The lock 14 has a raised snap-on portion. After positioning the stopper, press the upper and lower ends to insert the lock 14 into the corresponding lock hole 15, and the snap-on portion and the lock hole 15 are locked. When disassembly is required, simply insert an external object of appropriate thickness into the gap, push the lock 14 inward, and the raised snap-on portion will come out, and the upper and lower parts can be separated.

[0048] In summary, the two main rods are fixed with fixed blocks inside the joint, which can ensure the stable installation and connection of the main rods. When the main rods and the fixed block screws are installed, the adjacent spring screws are installed in an up-down staggered distribution, which can disperse the force during use and effectively prevent deformation and breakage at the connection. The spring screws can effectively prevent loosening during use, ensuring stability. The installation ends of the two main rods are against the block, which increases the force area. At the same time, buffer pads are installed on both sides of the block, which can achieve pressure buffering when used for fitness, thereby avoiding breakage at the main rod. The block is flexibly set and can be installed and disassembled by itself. In the past, the main rods that were too long were often easily broken, crushed and damaged during transportation. This design is convenient for carrying and transportation. The main rods and the fixed blocks without threaded holes are hollow, which reduces the use of materials and reduces the weight. Users can accurately find the force point and improve the use effect of fitness equipment.

[0049] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary personnel in this field should fall within the scope of protection of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims

1. A fracture-resistant seamless main rod for fitness equipment, comprising a main rod (1), characterized in that: The main rod (1) is hollow inside, and the connecting sections of the two main rods (1) are fixedly installed with a fixing block (2) through internal threads, and the outer end of the fixing block (2) is sleeved with a stopper (3), and the connecting section of the main rod (1) abuts against the stopper (3); the stopper (3) is sleeved in the middle of the fixing block (2), and buffer pads are fixedly installed on both sides of the stopper (3), and the outer ring size of the stopper (3) is larger than the outer ring size of the main rod (1); the stopper (3) is a ring buckle formed by hinged upper and lower parts, and the connection is a locking mechanism (13), and the locking mechanism (13) includes a locking hole (15) and a locking buckle (14), the upper half of the ring buckle is integrally formed with the locking buckle (14), and the lower half of the ring buckle is integrally formed with the locking hole (15), and the locking buckle (14) has a protruding snapping part, and the locking buckle (14) is just inserted into the corresponding locking hole (15), and the snapping part is clamped with the locking hole (15); The stopper (3) is an integrally formed ring. The stopper (3) is provided with button holes at the upper and lower ends. A pressing and pushing mechanism (8) is provided in the hole. The pressing and pushing mechanism (8) includes a button (9) and a pull rod (12). The button (9) is inserted into the button hole. A reset spring (10) is fixedly installed on the top of the button (9). The other end of the reset spring (10) is fixedly installed on the surface of the stopper (3). A heart-shaped groove (11) is provided on the side of the button (9). A pull rod (12) is rotatably installed inside the button hole. One end of the pull rod (12) is fixedly rotatably installed inside the button hole, and the other end is hook-shaped and placed in the heart-shaped groove (11).

2. The anti-fracture seamless main rod for fitness equipment according to claim 1, characterized in that: The connecting ends of the main rod (1) are respectively provided with threaded through holes, a hole (5) is transversely provided inside the fixing block (2), and a threaded through hole is provided at the connecting surface between the fixing block (2) and the main rod (1), and the threaded through hole provided at the connecting end of the main rod (1) and the threaded through hole provided in the fixing block (2) are coaxially located.

3. The anti-fracture seamless main rod for fitness equipment according to claim 1, characterized in that: A groove (4) is provided in the middle of the fixing block (2), a raised buckle (6) is integrally formed inside the groove (4), a fixed track (7) is provided on the surface of the fixing block (2), and a raised guide block is provided inside the main rod (1).

4. The anti-fracture seamless main rod for fitness equipment according to claim 3, characterized in that: The fixed track (7) is L-shaped and centrally symmetrically distributed.

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