Limiting device for fitness equipment

Abstract

The limiting device for the fitness equipment comprises a pull-down frame body, two parallel guide rods are vertically arranged in the pull-down frame body, a pull-down balancing weight and a static balancing weight which are connected to the surfaces of the guide rods in a sleeved mode are movably arranged in the pull-down frame body, and the static balancing weight is movably arranged at the bottom of the inner wall of the pull-down frame body. A butt joint threaded hole is formed in the pull-down balancing weight. The limiting hole and the limiting assembly are arranged, the position of the pull-down balancing weight is limited through the limiting assembly, the stroke of the pull-down balancing weight is blocked after the pull-down balancing weight reaches the position of the limiting assembly, and therefore the movement range of the pull-down balancing weight is narrowed, and danger is reduced; the problem that when existing high-position pull-down fitness equipment is used, a balancing weight pulls up the arms of a user, and consequently the user is likely to be strained is solved, and by arranging an elastic cushion, the situations that after the user slips out of the hand, the pull-down balancing weight rapidly falls down, rigid collision is generated, and consequently huge noise and equipment damage are caused are also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a limiting device for fitness equipment. Background Art

[0002] With the development of contemporary society, people pay more and more attention to health and will take the initiative to exercise to improve their health indicators. Therefore, the government or developers will install a lot of fitness equipment in outdoor activity places. Due to the large market, many gyms have been opened. The equipment in the gym is very complete and professional compared with outdoor fitness equipment.

[0003] At present, the equipment in the gym is diverse and can be used for targeted exercise. Among them, the high pulley fitness equipment is widely used. However, we found some disadvantages in the use. Due to the different heights of people, the pulling range is different. Sometimes, even when the user stretches his arms to the longest, the counterweight block is difficult to reach the bottom. Therefore, after a long time of exercise, the user's arms will be fatigued. In this case, the counterweight block will pull up the user's arm, which may cause the user's muscles or arms to be strained.

[0004] Therefore, how to provide a limiting device for fitness equipment is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] An object of the utility model is to provide a limiting device for fitness equipment, and the utility model solves the problem that the counterweight block will pull up the user's arm during the use of the existing high pulley fitness equipment, which may cause the user to be strained.

[0006] A limiting device for fitness equipment according to an embodiment of the utility model includes a downward pull frame body. Two parallel guide rods are vertically arranged inside the downward pull frame body. A downward pull counterweight block and a static counterweight block sleeved on the surface of the guide rods are movably arranged inside the downward pull frame body. The static counterweight block is movably arranged at the bottom position of the inner wall of the downward pull frame body. A butt joint threaded hole is opened on the downward pull counterweight block, and a threaded connecting rod is threadedly connected inside the butt joint threaded hole. A steel wire pulling rope for pulling the downward pull counterweight block is arranged at the top of the downward pull counterweight block. A limiting hole is opened on the side surface of the downward pull frame body, and a limiting component is movably inserted inside the limiting hole. The other end of the limiting component extends to the inner side of the downward pull frame body and is located directly below the downward pull counterweight block. The downward pull counterweight block is movably lapped on the top of the limiting component to limit the downward pull counterweight block.

[0007] The number of the limiting holes is two groups. The two groups of limiting holes are symmetrically opened on the two side surfaces of the downward pull frame body with the vertical symmetry axis of the downward pull frame body as the symmetry axis. The number of each group of limiting holes is seventeen, and the limiting component is movably inserted inside any one of the two groups of limiting holes.

[0008] The limiting component includes a limiting plate member. One end of the limiting plate is provided with a chamfer. The end of the limiting plate member with the chamfer is movably inserted into the inside of the limiting hole and extends to directly below the downward pull counterweight. A handle is provided on one end face of the limiting plate member located outside the downward pull box body.

[0009] The limiting component further includes an anti-impact component. The anti-impact component includes a bottom plate. A positioning cylinder is fixed on the top of the bottom plate. An activity cylinder is movably connected inside the positioning cylinder. A top plate is horizontally and fixedly connected to the top of the activity cylinder. The top plate is attached to the lower surface of the downward pull counterweight. An elastic member is arranged between the top plate and the bottom plate inside the activity cylinder and the positioning cylinder. A slot extending to the middle position of the limiting plate member is opened at the connection of the other end and the top of the lower position plate member. The bottom plate is movably inserted into the inside of the slot.

[0010] The limiting component further includes a locking component. The locking component includes a locking block, a clamping groove, and a receiving groove. The clamping groove is opened on the lower surface of the bottom plate. The receiving groove is opened at the bottom position of the inner wall of the slot. The locking block is movably connected inside the receiving groove. A spring piece is arranged at the bottom of the locking block. A manual pull rope is fixed to the bottom of the locking block. The other end of the manual pull rope passes through the receiving groove and the limiting plate and extends to the side of the limiting plate close to the handle. A dial block is movably arranged at the position of the manual pull rope on the side surface of the limiting plate. The end of the manual pull rope extending outside the limiting plate is fixedly connected to the surface of the dial block.

[0011] An elastic pad is arranged at the fitting position of the upper surface of the top plate and the downward pull counterweight.

[0012] The beneficial effects of the present utility model are as follows:

[0013] By providing the limiting hole and the limiting component, after the downward pull counterweight is lifted, it is necessary for the staff to insert the limiting component into the limiting hole. At this time, the limiting component is directly below the downward pull counterweight. When the downward pull counterweight falls, it will rest on the top of the limiting component, avoiding the situation that the activity range of the downward pull counterweight is too large, resulting in the user's arm being dragged and straightened, causing injury to the user's arm. The position of the downward pull counterweight is limited by the limiting component, so that the stroke of the downward pull counterweight is blocked after reaching the position of the limiting component, thus reducing the activity range of the downward pull counterweight and reducing the occurrence of danger, solving the problem that the counterweight of the existing high-position downward pull fitness equipment may pull up the user's arm and cause the user to be possibly strained during use. By providing the elastic pad, it also avoids the situation of rigid collision caused by the rapid fall of the downward pull counterweight after the user lets go, resulting in huge noise and equipment damage. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 This is a cross-sectional flow chart of the position of the limit component in a limit device for a fitness apparatus proposed by the present utility model.

[0016] Figure 2 A limit device for a fitness apparatus proposed by the present utility model Figure 1 An enlarged flow chart at position A in it.

[0017] Figure 3 This is a three-dimensional flow chart of the limit component in a limit device for a fitness apparatus proposed by the present utility model.

[0018] Reference numerals in the attached drawings: 1, lower pull box body; 2, guide rod; 3, lower pull counterweight; 4, static counterweight; 5, docking threaded hole; 6, threaded connecting rod; 7, wire rope; 8, limit hole; 9, limit component; 10, limit plate member; 11, handle; 12, anti-impact component; 13, bottom plate; 14, positioning cylinder; 15, movable cylinder; 16, top plate; 17, elastic member; 18, slot; 19, locking component; 20, locking block; 21, card slot; 22, storage groove; 23, spring piece; 24, hand-pulled rope; 25, pulling block; 26, elastic pad. Detailed implementation manners

[0019] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0020] Refer to Figure 1 , including a lower pull box body 1. Inside the lower pull box body 1, two parallel guide rods 2 are vertically arranged. The two guide rods mainly guide the movable lower pull counterweight 3 to move up and down along the guide rods 2. Inside the lower pull box body 1, there are a lower pull counterweight 3 and a static counterweight 4 sleeved on the surface of the guide rods 2. The static counterweight 4 moves at the bottom position of the inner wall of the lower pull box body 1. A docking threaded hole 5 is formed in the upper part of the lower pull counterweight 3. The docking threaded hole 5 is used to insert a threaded connecting rod 6. The threaded connecting rod 6 mainly connects the lower pull counterweights 3 together to increase the number of lower pull counterweights 3 to increase the counterweight. A threaded connecting rod 6 is threadedly connected inside the docking threaded hole 5. A wire rope 7 for pulling the lower pull counterweight 3 is arranged at the top of the lower pull counterweight 3. By pulling the wire rope 7, the lower pull counterweight 3 is driven to be pulled up, thereby realizing the function of high-position downward pull.

[0021] Embodiment 1

[0022] Refer to Figure 2 and Figure 3, a limiting hole 8 is formed on the side surface of the drop-down box body 1. The number of the limiting holes 8 is two groups. The two groups of limiting holes 8 are symmetrically formed on the two side surfaces of the drop-down box body 1 with the vertical symmetry axis of the drop-down box body 1 as the symmetry axis. Such a symmetrical setting is used to increase the installation positions of the limiting components 9. The number of each group of limiting holes 8 is seventeen, not limited to seventeen, and can be set to one group or multiple groups according to actual use conditions. The limiting component 9 is movably inserted into any one of the two groups of limiting holes 8. At this time, the limiting component 9 is in a horizontal state. When the drop-down counterweight 3 falls, it supports the drop-down counterweight 3 to limit the movement range of the drop-down counterweight 3;

[0023] A limiting component 9 is movably inserted into the limiting hole 8. The limiting component 9 includes a limiting plate member 10. One end of the limiting plate is provided with a chamfer. The purpose of the chamfer design is to enable the limiting plate member 10 to be quickly docked with the limiting hole 8. The end of the limiting plate member 10 with the chamfer is movably inserted into the limiting hole 8 and extends to directly below the drop-down counterweight 3. A handle 11 is arranged on the end surface of the limiting plate member 10 located outside the drop-down box body 1. The limiting plate member 10 is horizontally moved by holding the handle 11, which is convenient for docking with the limiting hole 8 and removing from the limiting hole 8.

[0024] Embodiment 2

[0025] Reference Figure 2 and Figure 3, the limiting component 9 further includes an anti-impact component 12. The anti-impact component 12 includes a bottom plate 13. A positioning cylinder 14 is fixed to the top of the bottom plate 13. An activity cylinder 15 is movably connected inside the positioning cylinder 14. The positioning cylinder 14 is sleeved on the surface of the activity cylinder 15 so that the activity cylinder 15 moves along the inner wall of the fixed cylinder. A top plate 16 is horizontally and fixedly connected to the top of the activity cylinder 15. The top plate 16 is attached to the lower surface of the downward pull counterweight 3. A layer of elastic pad 26 is provided at the attachment position between the upper surface of the top plate 16 and the downward pull counterweight 3. This layer of elastic pad 26 is to avoid the sound generated by the collision between the downward pull counterweight 3 and the top plate 16. An elastic member 17 is provided between the top plate 16 and the bottom plate 13 inside the activity cylinder 15 and the positioning cylinder 14. The elastic member 17 is a spring and can also be replaced with other elastic components, not limited to the spring as the elastic member 17. A slot 18 extending to the middle position of the limiting plate member 10 is opened at the connection between the other end and the top of the lower plate member. The size of the bottom plate 13 matches the size of the slot 18. The bottom plate 13 is movably inserted into the slot 18. When the downward pull counterweight 3 slides downward, it will rest on the top plate 16. The top plate 16 receives the downward pressure and drives the activity cylinder 15 to move downward inside the fixed cylinder and squeeze the elastic member 17, causing the elastic member 17 to contract under force. This can provide a buffer for the downward pull counterweight 3 and avoid rigid collision between the downward pull counterweight 3 and the top plate 16. It mainly prevents the downward pull counterweight 3 from falling rapidly after getting out of hand. Moreover, through this anti-impact component 12, an upward force can be provided to facilitate the user to quickly lift the downward pull counterweight 3.

[0026] Embodiment 3

[0027] Reference Figure 2, the limit component 9 further includes a latch component 19. The latch component 19 includes a latch block 20, a card slot 21, and a storage slot 22. The card slot 21 is opened on the lower surface of the bottom plate 13. The size of the storage slot 22 matches the size of the latch block 20. A rounded corner is provided on the side of the latch block 20 that is engaged with the card slot 21. The main purpose is that the bottom plate 13 can squeeze the latch block 20 through the rounded corner. After the latch block 20 is squeezed, it will contract into the interior of the storage slot 22. Until the card slot 21 on the bottom plate 13 is located above the latch block 20, the latch block 20 will be stuck inside the card slot 21 by the elastic force of the spring piece 23 to position the bottom plate 13. The storage slot 22 is opened at the bottom position of the inner wall of the slot 18. The latch block 20 is movably connected inside the storage slot 22. A spring piece 23 is provided at the bottom of the latch block 20. A manual pull rope 24 is fixed to the bottom of the latch block 20. The other end of the manual pull rope 24 passes through the storage slot 22 and the limit plate and extends to the side of the limit plate close to the handle 11. A dial block 25 is movably provided at the position of the manual pull rope 24 on the side surface of the limit plate. The end of the manual pull rope 24 extending outside the limit plate is fixedly connected to the surface of the dial block 25. When it is necessary to remove the bottom plate 13, one hand holds the handle 11 and then uses the thumb to dial the dial block 25 downward. After the dial block 25 is dialed, it drives the manual pull rope 24 to stretch. The stretching of the manual pull rope 24 will drive the latch block 20 to contract into the storage slot 22, so that the latch block 20 is separated from the card slot 21, and thus the bottom plate 13 can be removed from the interior of the slot 18. The main purpose of this latch component 19 is to lock the position of the bottom plate 13 in the slot 18 and improve the connection stability.

[0028] The other end of the limit component 9 extends to the inside of the drop-down box body 1 and is located directly below the drop-down counterweight block 3. The drop-down counterweight block 3 is movably lapped on the top of the limit component 9 to limit the drop-down counterweight block 3.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A limiting device for fitness equipment, characterized in that: The invention comprises a pull-down frame (1), wherein two parallel guide rods (2) are vertically arranged inside the pull-down frame (1), a pull-down counterweight (3) and a static counterweight (4) are movably sleeved on the surface of the guide rod (2) inside the pull-down frame (1), the static counterweight (4) is movably located at the bottom position of the inner wall of the pull-down frame (1), a butt-jointed threaded hole (5) is opened on the top of the pull-down counterweight (3), a threaded connecting rod (6) is connected to the inner thread of the butt-jointed threaded hole (5), and a steel wire rope (7) for pulling the pull-down counterweight (3) is arranged on the top of the pull-down counterweight (3); A limiting hole (8) is provided on the side of the pull-down frame (1), a limiting component (9) is movably inserted into the limiting hole (8), the other end of the limiting component (9) extends to the inner side of the pull-down frame (1) and is located directly below the pull-down counterweight (3), and the pull-down counterweight (3) is movably overlapped on the top of the limiting component (9).

2. A limiting device for fitness equipment according to claim 1, characterized in that: The number of the limiting holes (8) is two groups. The two groups of limiting holes (8) are symmetrically arranged on the two side surfaces of the pull-down frame (1) with the vertical symmetry axis of the pull-down frame (1) as the symmetry axis. The number of the limiting holes (8) in each group is seventeen. The limiting assembly (9) is movably inserted into any one of the limiting holes (8) in the two groups of limiting holes (8).

3. A limiting device for fitness equipment according to claim 2, characterized in that: The limiting assembly (9) comprises a limiting plate (10), one end of which is movably inserted into the limiting hole (8) and extends to the bottom of the pull-down counterweight (3), and a handle (11) is provided on one end surface of the limiting plate (10) located outside the pull-down frame (1).

4. A limiting device for fitness equipment according to claim 3, characterized in that: The limiting assembly (9) also includes an anti-impact assembly (12), which includes a bottom plate (13), a positioning cylinder (14) fixed on the top of the bottom plate (13), a movable cylinder (15) movably connected inside the positioning cylinder (14), a top plate (16) fixedly connected horizontally on the top of the movable cylinder (15), the top plate (16) being attached to the lower surface of the pull-down counterweight (3), an elastic member (17) being arranged inside the movable cylinder (15) and the positioning cylinder (14) at a position between the top plate (16) and the bottom plate (13), a slot (18) extending to the middle position of the limiting plate (10) being provided at the connection between the other end of the lower plate and the top, and the bottom plate (13) being movably inserted inside the slot (18).

5. A limiting device for fitness equipment according to claim 4, characterized in that: The limit assembly (9) also includes a lock assembly (19), which includes a lock block (20), a slot (21) and a receiving slot (22), wherein the slot (21) is arranged on the lower surface of the bottom plate (13), and the receiving slot (22) is arranged at the bottom position of the inner wall of the slot (18), the lock block (20) is movably connected inside the receiving slot (22), a spring sheet (23) is arranged at the bottom of the lock block (20), a hand pull rope (24) is fixed at the bottom of the lock block (20), the other end of the hand pull rope (24) passes through the receiving slot (22) and the limit plate and then extends to a side of the limit plate close to the handle (11), a pull block (25) is movably arranged on the side of the limit plate at the position of the hand pull rope (24), and one end of the hand pull rope (24) extending to the outer side of the limit plate is fixedly connected to the surface of the pull block (25).

6. A limiting device for fitness equipment according to claim 5, characterized in that: A layer of elastic pad (26) is provided at the position where the upper surface of the top plate (16) fits the pull-down counterweight (3).

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