Exercise apparatus with various forms and use method thereof
By designing a multi-functional exercise equipment installation mechanism, users can quickly adjust the device configuration and realize multiple exercise forms, solving the problem of single use of existing exercise equipment and improving the flexibility and efficiency of training.
Patent Information
- Application Number
- CN202411949448.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-03-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing exercise equipment is not convenient to assemble in multiple forms during use, resulting in a single form of use, reducing flexibility during use, and making it difficult to meet the different training needs of users.
A training device with multiple forms is designed, and the installation mechanism includes a mounting rod, a socket, a first mounting ring, a second mounting ring, a latch and a gripping sleeve. By adjusting the number and position of the counterweight plates, combining the gripping sleeves and elongated rods of different lengths, the conversion of various exercise forms is achieved.
This exercise device allows users to quickly adjust the device configuration according to their needs, and realize a variety of training forms such as dumbbells, barbells, barbells, push-ups and curls. It improves the efficiency of use and flexibility of training, meets different training needs, and maintains users' interest and motivation through diversified training modes.
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Figure CN119701277A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fitness equipment, in particular to a training device with multiple forms and a use method thereof. Background Art
[0002] Exercise equipment with various forms is a type of fitness equipment, which refers to equipment designed to support various types of exercise activities and can adapt to different fitness goals and training needs. This type of equipment usually has adjustable functions or modular designs, so that users can change the settings or combinations of the equipment to achieve different exercise effects. The multifunctional fitness bell with Chinese patent application number 90204495.8 is composed of two hollow spheres and a connector that connects the two hollow spheres together. Steel balls can be loaded into the hollow spheres. The connector can be a handle short stick, a rubber stick and a rope or chain with a connector. It has multiple functions and can be used as an adjustable weight dumbbell, an arm or wrist strength trainer, a skipping rope, and a martial arts equipment.
[0003] During use, the existing exercise equipment is not convenient to be assembled in various forms, which results in a single use form of the exercise equipment, reduces flexibility during use, and is difficult to meet different training needs of users. Summary of the invention
[0004] The object of the present invention is to provide an exercise device with multiple forms and a method of using the same, which has the advantage of being multifunctional and solves the problem that the existing exercise devices are not convenient to assemble in multiple forms during use, resulting in a single use form of the exercise devices, reducing flexibility during use and making it difficult to meet the different training needs of users.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an exercise device with various forms, comprising a mounting mechanism,
[0006] The mounting mechanism comprises a mounting rod, and a plurality of insertion holes are formed on the surface of the mounting rod;
[0007] The left and right ends of the surface of the mounting rod are respectively sleeved with a first mounting ring and a second mounting ring, the first mounting ring and the second mounting ring are movably connected with a plug, and the plug extends into the plug hole;
[0008] The surface of the mounting rod is also covered with a gripping sleeve, and the surface of the gripping sleeve is provided with anti-slip grooves.
[0009] As a preferred exercise device with multiple forms of the present invention, it also includes a weight plate, the number of which is several and the weight plates are installed at the left end, the right end or both ends of the installation mechanism.
[0010] As a preferred exercise device with multiple forms of the present invention, the weight plate is movably sleeved on the surface of the mounting rod, and the first mounting ring, the second mounting ring and the gripping sleeve limit and fix the weight plate.
[0011] As a preferred exercise device with multiple forms of the present invention, it also includes an extension rod, which is installed on the opposite side of the two mounting mechanisms, and the extension rod is threadedly connected to the first mounting ring.
[0012] As a preferred exercise device with various forms of the present invention, it also includes a supporting mechanism, which is installed at the left and right ends of the mounting mechanism to support it.
[0013] As a preferred exercise device with various forms of the present invention, the support mechanism includes a ring, which is movably sleeved on the surface of the mounting rod, and a mounting pin is penetrated through the surface of the ring, and the mounting pin extends into the socket to fix the ring.
[0014] As a preferred exercise device with various forms of the present invention, the bottom of the ring is fixedly connected to a support frame, and the support frame is provided with a through hole.
[0015] As a preferred exercise device with various forms of the present invention, the front and rear sides of the bottom of the support frame are both equipped with supporting feet, and the left and right sides of the support frame are both equipped with fixing bolts, and the fixing bolts are threadedly connected to the supporting feet to fix them.
[0016] As a preferred exercise device with multiple forms of the present invention, it also includes pulleys, the number of which is two, and the two pulley sleeves are arranged at the middle end or the left and right ends of the mounting rod, and the first mounting ring, the second mounting ring and the gripping sleeve limit and fix the pulleys.
[0017] A method for using an exercise device with multiple forms comprises the following steps:
[0018] S1. When dumbbells are needed for exercise, several weight plates are installed on the left and right ends of the installation mechanism. During installation, according to the user's exercise weight requirements, a gripping sleeve of a corresponding length is mounted on the middle end of the installation rod, and a corresponding number of weight plates are mounted on the left and right ends of the installation rod. The gripping sleeve limits the opposite end of the weight plate, and the first mounting ring and the second mounting ring are mounted on the left and right ends of the installation rod, and are positioned close to the opposite end of the weight plate. After the positioning is completed, the pin is passed through the first mounting ring and the second mounting ring, and inserted into the jack to fix the weight plate and the gripping sleeve;
[0019] S2. When it is necessary to use the barbell for exercise, several weight plates are installed on the left or right end of the installation mechanism. During installation, the first installation ring is first installed on one end of the installation rod through the latch, and then a corresponding number of weight plates are sleeved on the installation rod. The first installation ring limits one end of the weight plate to prevent it from falling off. Then, a gripping sleeve of a corresponding length is sleeved on the installation rod to limit the other end of the weight plate. After the installation is completed, the second installation ring is sleeved on the installation rod and fixed by the latch. The second installation ring prevents the weight plate and the gripping sleeve from falling off.
[0020] S3. When a barbell is needed for exercise, the two barbell mounting mechanisms and the weight plate are assembled, and then an extension rod is installed at the opposite ends of the two mounting mechanisms. When installing the extension rod, the extension rod is screwed into the inner wall of the first mounting ring to connect the mounting mechanism and the extension rod;
[0021] S4. When push-ups are needed, the support mechanism is mounted on the left and right ends of the mounting mechanism so that the mounting mechanism can be suspended in the air. The user performs push-ups on the ground by grasping the mounting mechanism with his hands. When installing the support mechanism, the gripping sleeve is mounted on the middle end of the mounting rod, and the gripping sleeve is fixed by the first mounting ring and the second mounting ring. Then, the sleeve is mounted on the left and right ends of the mounting rod, and the mounting pin is inserted into the socket through the sleeve to fix the sleeve. The support frame and the support legs support the bottom of the sleeve so that the sleeve and the mounting rod are suspended in the air.
[0022] S5. When it is necessary to perform sit-ups, install the two pulleys at the middle end or the left and right ends of the mounting mechanism. When installed at the middle end, fit the two pulleys together and sleeve them on the middle end of the mounting rod, and then use the holding sleeve, the first mounting ring and the second mounting ring to limit the left and right ends of the two pulleys. The user performs sit-ups by holding the holding sleeves at the left and right ends. When installed at the left and right ends, first sleeve the holding sleeves on the middle end of the mounting rod, and then install the two pulleys on the left and right sides of the holding sleeve. Fix the pulleys and the holding sleeve by the first mounting ring and the second mounting ring, and the user performs sit-ups by holding the holding sleeve at the middle end.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1. The present invention allows users to quickly adjust the configuration of the equipment according to their own exercise needs, thereby achieving a variety of different forms of training from dumbbells to barbells, barbells, and even push-ups and sit-ups. This not only improves the efficiency of the use of the equipment, but also enables a single equipment to meet a wider range of training goals. By changing the number and position of weight plates and selecting grips of different lengths, users can customize the weight and grip method that suits them according to their personal physical conditions and fitness levels, ensuring the effectiveness and comfort of the training.
[0025] 2. The present invention can replace a number of traditional special equipment, thus reducing the need to purchase multiple devices and also reducing the physical space required to store these devices. The exercise equipment uses a socket, a first mounting ring, a second mounting ring and a latch for positioning, ensuring stability and reliability in various forms and avoiding the risk of injury due to component slippage or other unexpected situations. The diversified training modes help maintain the user's interest and motivation and prevent boredom caused by long-term repetition of the same movements. At the same time, the rich training options are also conducive to breaking the body's adaptive state, continuously challenging different muscle groups and improving training effects. All components of the exercise equipment can be disassembled and reassembled, and such a design also facilitates product packaging, transportation and storage. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the structure of the installation mechanism of the present invention;
[0027] Figure 2 This is a schematic diagram of the dumbbell state structure of the present invention;
[0028] Figure 3 This is a schematic diagram of the structure of the rod bell state of the present invention;
[0029] Figure 4 It is a schematic diagram of the barbell state structure of the present invention;
[0030] Figure 5 It is a schematic diagram of the installation mechanism and the extension rod structure of the present invention;
[0031] Figure 6 It is a cross-sectional view of the mounting mechanism and the extension rod of the present invention;
[0032] Figure 7 It is a schematic diagram of the state structure of the push-up apparatus of the present invention;
[0033] Figure 8 It is a schematic diagram of the supporting mechanism structure of the present invention;
[0034] Fig. 9 The structure of the abdominal wheel of the present invention is shown in FIG. Figure 1 ;
[0035] Fig.10 The structure of the abdominal wheel of the present invention is shown in FIG. Figure 2 ;
[0036] Fig.11 The structure of the abdominal wheel of the present invention is shown in FIG. Figure 3 .
[0037] In the figure: 1. mounting mechanism; 101. mounting rod; 102. socket; 103. second mounting ring; 104. first mounting ring; 105. gripping sleeve; 106. latch; 2. weight plate; 3. extension rod; 4. supporting mechanism; 401. sleeve; 402. mounting pin; 403. supporting frame; 404. supporting foot; 405. fixing bolt; 406. through hole; 5. pulley. DETAILED DESCRIPTION
[0038] Example 1
[0039] See also Figure 1-Figure 11 A multi-form exercise device includes a mounting mechanism 1, which includes a mounting rod 101. A plurality of insertion holes 102 are provided on the surface of the mounting rod 101. A first mounting ring 104 and a second mounting ring 103 are respectively sleeved on the left and right ends of the surface of the mounting rod 101. A latch 106 is movably connected to the first mounting ring 104 and the second mounting ring 103. The latch 106 extends into the insertion hole 102. A gripping sleeve 105 is also sleeved on the surface of the mounting rod 101. The gripping sleeve 105 has anti-slip grooves on its surface.
[0040] Furthermore, it also includes a counterweight plate 2, the number of which is several, and the counterweight plate 2 is installed at the left end, the right end, or both ends of the installation mechanism 1.
[0041] Furthermore, the weight plate 2 is movably mounted on the surface of the mounting rod 101 , and the first mounting ring 104 , the second mounting ring 103 and the gripping sleeve 105 are used to limit and fix the weight plate 2 .
[0042] The weight plate 2 is installed on the left end, the right end or both ends of the mounting mechanism 1, and can form a dumbbell or a barbell. When using the dumbbell for exercise, it can be used for free weight exercises, which is helpful to comprehensively develop the muscle strength of various parts of the body. By selecting specific movements, the dumbbell can effectively target smaller muscle groups or muscle fibers and increase muscle content. When using the barbell for exercise, dynamic and compound movements such as swinging and snatching can be performed, which is helpful to improve the actual strength application in daily activities. In addition, high-intensity intermittent barbell training can significantly improve cardiovascular health. During barbell exercise, eccentric contraction stimulates the growth of muscle fibers and helps to shape stronger muscle lines.
[0043] Furthermore, it also includes an extension rod 3 , which is installed on one side opposite to the two installation mechanisms 1 , and the extension rod 3 is threadedly connected to the first installation ring 104 .
[0044] The extension rod 3, the mounting mechanism 1 and the weight plate 2 can form a barbell, which allows a larger load during barbell training and can quickly build muscle. Many barbell movements involve the simultaneous work of multiple joints, such as squats and deadlifts, which can improve overall muscle coordination. Heavy-load barbell training puts pressure on the bones, and long-term persistence can help prevent osteoporosis.
[0045] Furthermore, it also includes a supporting mechanism 4, which is installed at the left and right ends of the mounting mechanism 1 to support it.
[0046] Furthermore, the supporting mechanism 4 includes a collar 401 , which is movably sleeved on the surface of the mounting rod 101 , and a mounting pin 402 is penetrated through the surface of the collar 401 , and the mounting pin 402 extends into the socket 102 to fix the collar 401 .
[0047] Furthermore, a support frame 403 is fixedly connected to the bottom of the ring 401 , and a through hole 406 is formed on the support frame 403 .
[0048] Furthermore, support legs 404 are installed on both the front and rear sides of the bottom of the support frame 403, and fixing bolts 405 are installed on both the left and right sides of the support frame 403. The fixing bolts 405 are threadedly connected to the support legs 404 to fix them.
[0049] The combination of the support mechanism 4 and the mounting mechanism 1 can be used for push-up exercises. Push-ups mainly exercise the chest, shoulders, triceps and core muscles. Push-up exercises are easy to learn and the difficulty can be adjusted according to personal physical fitness levels, such as standard push-ups, wide / narrow push-ups, one-arm push-ups and other variations. Push-up exercises are a whole-body exercise that can speed up the metabolic rate and help lose fat.
[0050] Furthermore, it also includes a pulley 5, the number of which is two, and the two pulleys 5 are sleeved on the middle end or the left and right ends of the mounting rod 101, and the first mounting ring 104, the second mounting ring 103 and the holding sleeve 105 limit and fix the pulley 5.
[0051] The combination of the pulley 5 and the mounting mechanism 1 can be used for crunch exercises, which focus on training the abdominal muscles, especially the rectus abdominis, and help to create a flat and tight abdomen. By generating strong core muscles through crunch exercises, better support can be provided for the spine, reducing the risk of back pain.
[0052] Example 2
[0053] See also Figure 1-Figure 11 , a method for using a multi-form exercise device, comprising the following steps:
[0054] S1. When dumbbells are needed for exercise, several weight plates 2 are installed on the left and right ends of the installation mechanism 1. During installation, according to the user's exercise weight requirements, a gripping sleeve 105 of a corresponding length is sleeved on the middle end of the installation rod 101, and a corresponding number of weight plates 2 are sleeved on the left and right ends of the installation rod 101. The gripping sleeve 105 limits the opposite end of the weight plate 2. The first mounting ring 104 and the second mounting ring 103 are sleeved on the left and right ends of the installation rod 101, and are limited near the opposite end of the weight plate 2. After the limiting is completed, the latch 106 passes through the first mounting ring 104 and the second mounting ring 103, and is inserted into the jack 102 to fix the weight plate 2 and the gripping sleeve 105;
[0055] S2. When it is necessary to use the barbell for exercise, several weight plates 2 are installed on the left or right end of the installation mechanism 1. During installation, the first installation ring 104 is first installed on one end of the installation rod 101 through the latch 106, and then a corresponding number of weight plates 2 are sleeved on the installation rod 101. The first installation ring 104 limits one end of the weight plate 2 to prevent it from falling off. Then, a gripping sleeve 105 of a corresponding length is sleeved on the installation rod 101 to limit the other end of the weight plate 2. After the installation is completed, the second installation ring 103 is sleeved on the installation rod 101 and fixed by the latch 106. The second installation ring 103 prevents the weight plate 2 and the gripping sleeve 105 from falling off.
[0056] S3. When a barbell is needed for exercise, the two barbell-shaped mounting mechanisms 1 and the weight plate 2 are assembled, and then the extension rod 3 is installed at the opposite ends of the two mounting mechanisms 1. When installing the extension rod 3, the extension rod 3 is screwed into the inner wall of the first mounting ring 104 to connect the mounting mechanism 1 and the extension rod 3.
[0057] S4. When push-ups are needed, the support mechanism 4 is sleeved on the left and right ends of the mounting mechanism 1, so that the mounting mechanism 1 can be suspended in the air. The user performs push-ups on the ground by grasping the mounting mechanism 1 with his hands. When installing the support mechanism 4, the gripping sleeve 105 is sleeved on the middle end of the mounting rod 101, and the gripping sleeve 105 is fixed by the first mounting ring 104 and the second mounting ring 103. Then, the sleeve 401 is sleeved on the left and right ends of the mounting rod 101, and the mounting pin 402 is inserted through the sleeve 401 into the socket 102 to fix the sleeve 401. The support frame 403 and the support leg 404 support the bottom of the sleeve 401, so that the sleeve 401 and the mounting rod 101 are suspended in the air.
[0058] S5. When it is necessary to perform sit-ups, install the two pulleys 5 at the middle end or the left and right ends of the mounting mechanism 1. When installed at the middle end, fit the two pulleys 5 together and sleeve them on the middle end of the mounting rod 101, and then use the holding sleeve 105, the first mounting ring 104 and the second mounting ring 103 to limit the left and right ends of the two pulleys 5. The user performs sit-ups by holding the holding sleeves 105 at the left and right ends. When installed at the left and right ends, first sleeve the holding sleeve 105 on the middle end of the mounting rod 101, and then install the two pulleys 5 on the left and right sides of the holding sleeve 105. Fix the pulleys 5 and the holding sleeve 105 by the first mounting ring 104 and the second mounting ring 103, and the user performs sit-ups by holding the holding sleeve 105 at the middle end.
[0059] The exercise equipment allows the user to quickly adjust the equipment configuration according to their own exercise needs, thereby achieving a variety of different forms of training from dumbbells to barbells, barbells and even push-ups and sit-ups. This not only improves the efficiency of the use of the equipment, but also allows a single equipment to meet a wider range of training goals. By changing the number and position of the weight plates 2, and selecting grip sleeves 105 of different lengths, users can customize their own weight and gripping method according to their personal physical conditions and fitness levels, ensuring the effectiveness and comfort of the training.
[0060] Since one device can replace multiple traditional dedicated devices, it reduces the need to purchase multiple devices and also reduces the physical space required to store these devices. The exercise device uses the socket 102, the first mounting ring 104, the second mounting ring 103 and the pin 106 for limiting, ensuring stability and reliability in various forms, avoiding the risk of injury caused by component slippage or other unexpected situations, and the diversified training modes help to maintain the user's interest and motivation and prevent boredom caused by long-term repetition of the same movements. At the same time, the rich training options are also conducive to breaking the body's adaptive state, continuously challenging different muscle groups, and improving training effects. All components of the exercise device can be disassembled and reassembled, and this design also facilitates the packaging, transportation and storage of the product.
[0061] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An exercise device with multiple forms, comprising a mounting mechanism (1), characterized in that: The mounting mechanism (1) comprises a mounting rod (101), and a plurality of insertion holes (102) are provided on the surface of the mounting rod (101); The left and right ends of the surface of the mounting rod (101) are respectively sleeved with a first mounting ring (104) and a second mounting ring (103); the first mounting ring (104) and the second mounting ring (103) are movably connected with a latch (106), and the latch (106) extends into the insertion hole (102); The surface of the mounting rod (101) is also covered with a grip sleeve (105), and the grip sleeve (105) has anti-slip grooves on its surface.
2. The exercise device with multiple forms according to claim 1, characterized in that: It also includes a counterweight plate (2), wherein the number of the counterweight plates (2) is several and the counterweight plates (2) are installed at the left end, the right end or both ends of the installation mechanism (1).
3. The exercise device with multiple forms according to claim 2, characterized in that: The weight plate (2) is movably sleeved on the surface of the mounting rod (101), and the first mounting ring (104), the second mounting ring (103) and the gripping sleeve (105) are used to position and fix the weight plate (2).
4. The exercise device with multiple forms according to claim 3, characterized in that: It also comprises an extension rod (3), wherein the extension rod (3) is mounted on the opposite side of the two mounting mechanisms (1), and the extension rod (3) is threadedly connected to the first mounting ring (104).
5. The exercise device with multiple forms according to claim 1, characterized in that: It also comprises a supporting mechanism (4), wherein the supporting mechanism (4) is installed at the left and right ends of the installation mechanism (1) to support it.
6. The exercise device with multiple forms according to claim 5, characterized in that: The support mechanism (4) comprises a collar (401), the collar (401) being movably sleeved on the surface of the mounting rod (101), a mounting pin (402) penetrating the surface of the collar (401), and the mounting pin (402) extending into the insertion hole (102) to fix the collar (401).
7. A multi-modal exercise apparatus according to claim 6, characterized in that: The bottom of the collar (401) is fixedly connected to a support frame (403), and a through hole (406) is provided on the support frame (403).
8. The exercise device with multiple forms according to claim 7, characterized in that: Support legs (404) are installed on both the front and rear sides of the bottom of the support frame (403), and fixing bolts (405) are installed on both the left and right sides of the support frame (403), and the fixing bolts (405) are threadedly connected to the support legs (404) to fix them.
9. The exercise device with multiple forms according to claim 1, characterized in that: It also includes a pulley (5), wherein the number of the pulleys (5) is two, and the two pulleys (5) are sleeved on the middle end or the left and right ends of the mounting rod (101), and the first mounting ring (104), the second mounting ring (103) and the holding sleeve (105) are used to limit and fix the pulleys (5).
10. A method for using a multi-form exercise device, applicable to the multi-form exercise device of claim 9, characterized in that: The following steps are involved: S1. When dumbbells are needed for exercise, several weight plates (2) are installed on the left and right ends of the installation mechanism (1). During installation, according to the user's exercise weight requirement, a gripping sleeve (105) of a corresponding length is sleeved on the middle end of the installation rod (101). After a corresponding number of weight plates (2) are sleeved on the left and right ends of the installation rod (101), the gripping sleeve (105) limits the opposite end of the weight plate (2). The first installation ring (104) and the second installation ring (103) are sleeved on the left and right ends of the installation rod (101) and are positioned close to the opposite end of the weight plate (2). After the positioning is completed, the latch (106) passes through the first installation ring (104) and the second installation ring (103) and is inserted into the insertion hole (102) to fix the weight plate (2) and the gripping sleeve (105); S2. When a barbell is required for exercise, a plurality of weight plates (2) are installed on the left or right end of the installation mechanism (1). During installation, the first installation ring (104) is first installed on one end of the installation rod (101) by means of a latch (106). Then, a corresponding number of weight plates (2) are sleeved on the installation rod (101). The first installation ring (104) limits one end of the weight plates (2) to prevent them from falling off. Then, a gripping sleeve (105) of a corresponding length is sleeved on the installation rod (101) to limit the other end of the weight plates (2). After installation is completed, the second installation ring (103) is sleeved on the installation rod (101). The second installation ring (103) is fixed by means of a latch (106). The second installation ring (103) prevents the weight plates (2) and the gripping sleeve (105) from falling off. S3. When it is necessary to use a barbell for exercise, assemble the two barbell-shaped mounting mechanisms (1) and the weight plate (2), then install the extension rod (3) at the opposite ends of the two mounting mechanisms (1). When installing the extension rod (3), screw the extension rod (3) into the inner wall of the first mounting ring (104) to connect the mounting mechanism (1) and the extension rod (3); S4. When push-ups are required, the support mechanism (4) is sleeved on the left and right ends of the mounting mechanism (1) so that the mounting mechanism (1) can be suspended in the air. The user grasps the mounting mechanism (1) with his hands and performs push-ups on the ground. When installing the support mechanism (4), the gripping sleeve (105) is sleeved on the middle end of the mounting rod (101), and the gripping sleeve (105) is fixed by the first mounting ring (104) and the second mounting ring (103). Then, the sleeve ring (401) is sleeved on the left and right ends of the mounting rod (101), and the mounting pin (402) is inserted through the sleeve ring (401) into the socket (102) to fix the sleeve ring (401). The support frame (403) and the support foot (404) support the bottom of the sleeve ring (401), so that the sleeve ring (401) and the mounting rod (101) are suspended in the air. S5. When it is necessary to perform abdominal crunches, the two pulleys (5) are installed at the middle end or the left and right ends of the installation mechanism (1). When installed at the middle end, the two pulleys (5) are fitted together and sleeved on the middle end of the installation rod (101). Then, the left and right ends of the two pulleys (5) are limited by using the holding sleeve (105), the first installation ring (104) and the second installation ring (103). The user performs abdominal crunches by holding the holding sleeves (105) at the left and right ends. When installed at the left and right ends, the holding sleeve (105) is first sleeved on the middle end of the installation rod (101). After the two pulleys (5) are installed on the left and right sides of the holding sleeve (105), the pulleys (5) and the holding sleeve (105) are fixed by the first installation ring (104) and the second installation ring (103). The user performs abdominal crunches by holding the holding sleeve (105) at the middle end.
Citation Information
Patent Citations
Multi-functional body-building ring
CN2062234U