High-safety pulley for sports equipment

By incorporating anti-tipping frames, safety outer rings, and protective sleeves into the pulley structure, the problem of low safety during pulley exercises has been solved, achieving stable rolling and wear resistance of the pulleys, and improving the safety and durability of sports and fitness equipment.

CN224404269UActive Publication Date: 2026-06-26NANTONG FENGFAN SPORTING GOODS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG FENGFAN SPORTING GOODS CO LTD
Filing Date
2024-12-30
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing small-volume pulley-type exercise equipment for strengthening the waist and abdomen has safety issues, including the main frame tipping over, pulleys wearing down the floor, and connecting shafts scratching the walls.

Method used

A highly safe pulley structure was designed, including a main pulley, an anti-tipping frame, a safety outer ring, a protective pad ring, main and auxiliary safety sleeves, and a stabilizing connecting column. The stability and protection of the pulley are enhanced by symmetrically arranged anti-tipping pulleys and reinforcing ribs.

Benefits of technology

It improves the safety of pulley exercises, avoids situations such as the main frame of the equipment tipping over, pulleys abrading the floor, and connecting shafts scratching the walls, and enhances the safety of pulleys against abrasion on wooden floors and the stability of the overall structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to pulley technical field especially a kind of high safety's sports equipment pulley, including main pulley, equipment main frame is equipped on main pulley, main connecting shaft is set on equipment main frame, anti-rollover frame is set on equipment main frame, vice connecting shaft is set on anti-rollover frame, anti-rollover pulley is set on vice connecting shaft, safety outer ring is set on main pulley and anti-rollover pulley, protective pad ring is set on safety outer ring, main safety sheath is set on main connecting shaft, vice safety sheath is set on vice connecting shaft.It improves the security for small volume pulley type sports fitness equipment for waist and abdomen strength, improves the anti-abrasion safety of the outer wall of main pulley and anti-rollover pulley placed on wooden floor, avoids the insecurity that the protruding main connecting shaft and vice connecting shaft part on main pulley and anti-rollover pulley is easily scratched with side wall.
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Description

Technical Field

[0001] This utility model relates to the field of pulley technology, and in particular to a highly safe pulley for sports equipment. Background Technology

[0002] Pulleys are frequently used in sports equipment, such as roller skates, skateboards, fitness equipment, and treadmills. Most sports equipment is quite large and takes up a lot of space if placed indoors at home. Therefore, a small-sized pulley-type sports and fitness equipment for targeting the waist and abdominal muscles has emerged.

[0003] Small pulley-type exercise equipment for targeting waist and abdominal strength generally consists of a main frame, handles, connecting shaft, and pulleys. People hold the handles on both sides, lie face down on the ground with a gap between their body and the ground, and then use their own waist and abdominal strength to repeatedly contract their abdomen. At the same time, the pulleys will roll on the ground, thus achieving the exercise of waist and abdominal strength.

[0004] Currently, most existing small-volume pulley-type fitness equipment for targeting waist and abdominal strength uses a single pulley for rolling exercises. If not careful, the main frame of the equipment may tip over to the left or right, causing the exerciser to fall to the ground, which is unsafe and greatly reduces the safety of small-volume pulley-type fitness equipment for targeting waist and abdominal strength.

[0005] Furthermore, the outer walls of existing small-volume pulley-type exercise equipment designed for waist and abdominal strength are generally quite hard. When placed on wooden floors in homes, this can easily cause abrasions to the wooden floor, thus reducing the safety of the pulley's outer wall against abrasions when placed on wooden floors.

[0006] In addition, the protruding connecting shaft on the pulley is prone to scratching the side wall, which is unsafe. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a highly safe pulley for sports equipment.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] Design a high-safety sports equipment pulley, including a main pulley, a main equipment frame on the main pulley, an equipment handle on the main equipment frame, a main connecting shaft on the main equipment frame, an anti-tipping frame on the main equipment frame, a secondary connecting shaft on the anti-tipping frame, and an anti-tipping pulley on the secondary connecting shaft. Both the main pulley and the anti-tipping pulley are equipped with safety outer rings.

[0010] A protective pad ring is provided on the outer safety ring, a main safety sleeve is provided on the main connecting shaft, and a secondary safety sleeve is provided on the secondary connecting shaft;

[0011] The anti-rollover frame is equipped with reinforcing ribs, and the safety outer ring is equipped with a stable connecting column.

[0012] Furthermore, the anti-rollover frame and the anti-rollover pulley are a set, and there are two sets arranged symmetrically in total. The anti-rollover frame as a whole has a bent structure.

[0013] Furthermore, the anti-tipping frame is rotatably connected to the anti-tipping pulley via a secondary connecting shaft, and the main equipment frame is rotatably connected to the main pulley via a main connecting shaft.

[0014] Furthermore, the total number of main pulleys is four, and the safety outer rings are all fixedly fitted along the outer wall surfaces of the main pulleys and the anti-tipping pulleys, while the protective pads are evenly laid along the outer wall surfaces of the safety outer rings.

[0015] Furthermore, the main safety sleeve is fitted onto the protruding end of the main connecting shaft, and the secondary safety sleeve is fitted onto the protruding end of the secondary connecting shaft.

[0016] Furthermore, the safety outer rings are two symmetrically arranged, and the stabilizing post is disposed between the two safety outer rings.

[0017] Furthermore, the reinforcing ribs are trapezoidal in shape and are located at the bending points of the anti-tipping frame.

[0018] The present invention provides a highly safe pulley for sports equipment, which has the following advantages:

[0019] 1. This utility model, by setting four main pulleys on the main frame of the equipment and symmetrically setting an anti-tipping frame structure with anti-tipping pulleys, realizes stable rolling exercise using the four main pulleys and the symmetrical main pulleys, avoiding the situation where the main frame of the equipment will tip over to the left or right if you are not careful. This effectively avoids the unsafe situation of exercisers falling to the ground, thus improving the safety of small-volume pulley-type sports and fitness equipment for waist and abdominal strength.

[0020] 2. This utility model improves the safety of the outer walls of the main pulley and the anti-tipping pulley by setting a safety outer ring structure with protective pads on the outer walls of the main pulley and the anti-tipping pulley. This prevents the hard material main pulley and the anti-tipping pulley from damaging the wooden floor when people place the main frame of equipment on it.

[0021] 3. This utility model, through the setting of a main safety sleeve and a secondary safety sleeve structure, can effectively and elastically cover the protruding main connecting shaft and secondary connecting shaft parts, avoiding the safety hazard of the protruding main connecting shaft and secondary connecting shaft parts on the main pulley and anti-tipping pulley easily scratching the side wall. Attached Figure Description

[0022] Figure 1 This is a first-view perspective perspective view of the overall structure of this utility model;

[0023] Figure 2 For the present utility model Figure 1 Enlarged view of a portion of point Y in the middle;

[0024] Figure 3 This is a second-view perspective perspective view of the overall structure of this utility model;

[0025] Figure 4 This is a front view schematic diagram of the overall structure of this utility model;

[0026] Figure 5 This is a side view of the overall structure of this utility model.

[0027] In the diagram: 1. Main pulley; 2. Main equipment frame; 21. Equipment handle; 3. Main connecting shaft; 31. Main safety sleeve; 4. Anti-tipping pulley; 5. Secondary connecting shaft; 51. Secondary safety sleeve; 6. Anti-tipping frame; 61. Reinforcing rib; 7. Safety outer ring; 71. Protective pad ring; 8. Stable connecting column. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figure 1-5 A high-safety sports equipment pulley includes a main pulley 1, a main equipment frame 2 on the main pulley 1, an equipment handle 21 on the main equipment frame 2, a main connecting shaft 3 on the main equipment frame 2, an anti-tipping frame 6 on the main equipment frame 2, a secondary connecting shaft 5 on the anti-tipping frame 6, an anti-tipping pulley 4 on the secondary connecting shaft 5, and a safety outer ring 7 on both the main pulley 1 and the anti-tipping pulley 4.

[0030] The outer safety ring 7 is provided with a protective pad ring 71, the main connecting shaft 3 is provided with a main safety sleeve 31, and the auxiliary connecting shaft 5 is provided with an auxiliary safety sleeve 51;

[0031] The anti-tipping frame 6 is equipped with a reinforcing rib plate 61, and the safety outer ring 7 is equipped with a stabilizing connecting post 8. The outer wall of the equipment handle 21 is made of damping silicone sleeve, which improves the anti-slip safety of the hand grip.

[0032] The anti-tipping frame 6 and the anti-tipping pulley 4 are a set, and there are two sets in total that are symmetrically arranged. The anti-tipping frame 6 has a bent structure as a whole to avoid the main frame 2 of the equipment from tipping over to the left or right if you are not careful.

[0033] The anti-tipping frame 6 is rotatably connected to the anti-tipping pulley 4 via the secondary connecting shaft 5, and the main frame 2 is rotatably connected to the main pulley 1 via the main connecting shaft 3, so that the six pulleys can roll on the ground at the same time, which improves the safety of use.

[0034] The main pulley 1 consists of four pulleys. The safety outer rings 7 are fixedly fitted along the outer wall of the main pulley 1 and the anti-rollover pulley. The protective pad rings 71 are evenly laid along the outer wall of the safety outer rings 7. The protective pad rings 71 are made of elastic rubber and are firmly bonded with epoxy resin. The high elasticity and cushioning of the elastic rubber itself provides anti-collision safety.

[0035] The main safety sleeve 31 is fitted onto the protruding end of the main connecting shaft 3, and the secondary safety sleeve 51 is fitted onto the protruding end of the secondary connecting shaft 5. Both the main safety sleeve 31 and the secondary safety sleeve 51 are made of high-elasticity NBR nitrile rubber, which is wear-resistant and elastic, and can be easily and securely fitted, thus improving anti-collision safety.

[0036] The safety outer rings 7 are arranged symmetrically in two, and the stabilizing connecting post 8 is arranged between the two safety outer rings 7. Both the stabilizing connecting post 8 and the safety outer rings 7 are made of hard alloy steel, which has high strength and is easy to weld, greatly improving the overall structural stability and strength of the main pulley 1 and the anti-rollover pulley 4.

[0037] The reinforcing rib 61 is a trapezoidal structure and is set at the bending part of the anti-tipping frame 6. The reinforcing rib 61 is made of 12Cr1MoV alloy steel, which has high strength and is easy to weld. The trapezoidal structure has strong stability, which improves the anti-deformation effect of the anti-tipping frame 6.

[0038] Working method: When using the equipment, people hold the handles 21 on both sides, then lie face down on the ground with a gap between their body and the ground. They then use their own waist and abdominal strength to perform reciprocating abdominal contractions to exercise their waist and abdominal strength. At the same time, the four main pulleys 1 will roll stably on the ground, and the anti-rollover pulleys 4 set on the anti-rollover frames 6 on both sides will also roll stably on the ground to prevent the main frame 2 from tipping over if not careful. This effectively avoids the unsafe situation of the exerciser's body tipping over and falling to the ground, thus improving the safety of small-volume pulley-type exercise equipment for waist and abdominal strength.

[0039] Furthermore, when people place the main equipment frame 2 on a wooden floor, the elastic protective pad ring 71 can prevent the hard material main pulley 1 and anti-tipping pulley 4 from causing abrasions to the household wooden floor, thus improving the abrasion prevention safety of the outer wall of the main pulley 1 and anti-tipping pulley 4 when placed on the wooden floor.

[0040] In addition, the main safety sleeve 31 and the secondary safety sleeve 51 structure can effectively and elastically cover the protruding main connecting shaft 3 and secondary connecting shaft 5, avoiding the safety hazard of the protruding main connecting shaft 3 and secondary connecting shaft 5 on the main pulley 1 and the anti-rollover pulley 4 being easily scratched by the side wall.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high safety pulley for sports equipment, comprising a main pulley (1), characterized in that: The main pulley (1) is provided with a main equipment frame (2), the main equipment frame (2) is provided with an equipment handle (21), the main equipment frame (2) is provided with a main connecting shaft (3), the main equipment frame (2) is provided with an anti-tipping frame (6), the anti-tipping frame (6) is provided with a secondary connecting shaft (5), the secondary connecting shaft (5) is provided with an anti-tipping pulley (4), and both the main pulley (1) and the anti-tipping pulley (4) are provided with a safety outer ring (7). The safety outer ring (7) is provided with a protective pad ring (71), the main connecting shaft (3) is provided with a main safety sleeve (31), and the auxiliary connecting shaft (5) is provided with an auxiliary safety sleeve (51). The anti-rollover frame (6) is provided with a reinforcing rib plate (61), and the safety outer ring (7) is provided with a stabilizing connecting column (8).

2. The high safety pulley for sports equipment according to claim 1, characterized in that: The anti-rollover frame (6) and the anti-rollover pulley (4) are a set, and there are two sets in total that are symmetrically arranged. The anti-rollover frame (6) is a bent structure as a whole.

3. The high-safety pulley for sports equipment according to claim 1, characterized in that: The anti-rollover frame (6) is rotatably connected to the anti-rollover pulley (4) via the secondary connecting shaft (5), and the main frame (2) is rotatably connected to the main pulley (1) via the main connecting shaft (3).

4. The high-safety pulley for sports equipment according to claim 1, characterized in that: The main pulley (1) consists of four pulleys. The safety outer ring (7) is fixedly fitted along the outer wall of the main pulley (1) and the anti-rollover pulley. The protective pad ring (71) is evenly laid along the outer wall of the safety outer ring (7).

5. A high-safety pulley for sports equipment according to claim 1, characterized in that: The main safety sleeve (31) is fitted onto the protruding end of the main connecting shaft (3), and the secondary safety sleeve (51) is fitted onto the protruding end of the secondary connecting shaft (5).

6. The high-safety pulley for sports equipment according to claim 1, characterized in that: The safety outer rings (7) are two symmetrically arranged, and the stabilizing post (8) is arranged between the two safety outer rings (7).

7. A high-safety pulley for sports equipment according to claim 1, characterized in that: The reinforcing rib (61) is a trapezoidal structure and is located at the bending part of the anti-tipping frame (6).