Multifunctional elastic band

Abstract

The utility model discloses a multifunctional elastic band, and belongs to the technical field of fitness equipment. Comprising a shell, two sets of partition plates are installed in the shell in the longitudinal direction and divide the interior of the shell into three sets of cavities, openings are formed in the opposite side walls of the shell and communicate with the cavities at the two ends in the shell correspondingly, a rotating shaft is rotatably installed in the shell and perpendicularly penetrates through the partition plates, a coil spring is installed in the center of the rotating shaft, and the coil spring is connected with the partition plates. The coil spring is located in the middle cavity, the elastic bands are installed at the two ends of the rotating shaft respectively, the winding directions of the elastic bands are opposite, the movable ends of the elastic bands penetrate out of the openings and are connected with the pull rings, and the limiting assemblies are installed at the openings respectively and used for limiting and fixing the elastic bands. According to the elastic band, the length of the elastic band can be adjusted without winding the elastic band with the help of an additional fixing auxiliary tool, the use frequency of the elastic band is improved, and meanwhile the use scene of the elastic band is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and specifically relates to a multifunctional elastic band. Background Art

[0002] Fitness is a kind of sports, such as various types of calisthenics, rhythmic gymnastics, body gymnastics and various self-resistance movements, gymnastics, and yoga can enhance strength, flexibility, increase endurance, improve coordination, and the ability to control various parts of the body, thereby making the body strong.

[0003] An elastic band is a kind of fitness equipment that is easy to carry and can be used for exercise anytime and anywhere. Existing elastic bands are mostly of a type that cannot be adjusted in length. Due to the different heights of users, users usually need to assist other fixed equipment to wind the elastic band during use, and adjust the elastic band to a suitable length for the user before exercising. This method not only affects use, increases the burden of use, but also limits the application scenarios. Utility Model Content

[0004] Purpose of the utility model: to provide a multifunctional elastic band to solve the above problems existing in the prior art.

[0005] Technical solution: A multifunctional elastic band comprises a shell, wherein two groups of partitions are installed in the shell along the longitudinal direction to divide the interior of the shell into three groups of cavities, and openings are provided on the opposite side walls of the shell, and the openings are respectively connected to the cavities at both ends of the shell, and a rotating shaft is rotatably installed in the shell, and the rotating shaft vertically passes through the partition, and a coil spring is installed in the center of the rotating shaft, and the coil spring is located in the middle cavity, and elastic bands are respectively installed at both ends of the rotating shaft, and the winding directions of the elastic bands are opposite, and the moving ends of the elastic bands pass through the openings and are connected to pull rings, and limiting components are respectively installed at the openings, and the limiting components are used to limit and fix the elastic bands.

[0006] Preferably, the fixed end of the elastic band is connected to the outer wall of the rotating shaft, and the wide surface of the elastic band is provided with a plurality of limiting holes, which penetrate the telescopic elastic band. The limiting holes are arranged in a linear array along the length direction of the elastic band, and the limiting holes are used for limiting the elastic band by partially passing the limiting holes of the limiting component.

[0007] Preferably, the limit assembly includes a traction shell installed at the opening of the shell, the side wall of the traction shell is provided with a belt outlet, the belt outlet is parallel to the axis of the rotating shaft, the belt outlet is used for the elastic band to move out of the shell, and a moving part is installed on one side wall of the traction shell, the moving part is used to squeeze the elastic band, the moving part and the belt outlet are located on the side wall adjacent to the traction shell, and the side wall of the shell is also provided with a locking part, the locking part and the moving part are arranged opposite to each other, and the moving part moves toward the locking part under the action of external force until the locking part hugs and locks the moving part, thereby limiting and fixing the length of the elastic band pulled out.

[0008] Preferably, the moving part includes a moving rod, which is slidably inserted into the traction shell, and the moving rod is operatively passed through the elastic band. The active end of the moving rod is equipped with a baffle, and the baffle and the moving rod are set perpendicular to each other. A clamping protrusion is installed on the outer wall of the passive end of the moving rod, which is connected with the locking part through the clamping protrusion to realize locking to limit the elastic band. The moving rod is equipped with an extrusion plate, and the length direction of the extrusion plate is the same as the width direction of the elastic band. A plurality of spikes are provided on the outer wall of the extrusion plate in contact with the elastic band, and the rectangular array of spikes is provided on the outer wall of the extrusion plate, and a contraction spring is provided between the extrusion plate and the baffle, and the contraction spring is sleeved on the moving rod, one end of which is fixedly connected to the extrusion plate, and the other end is connected to the inner wall of the traction shell.

[0009] Preferably, the locking portion includes a placement shell, which is mounted on a side wall of a traction shell opposite to the moving portion, the placement shell being a hollow structure with an opening at one end, wherein the hollow structure is connected to the traction shell, a bayonet is provided on the side wall opposite to the open end of the placement shell, the bayonet is in contact with an outer wall of the traction shell, a slider installed in the placement shell via a telescopic spring, arc-shaped rebound sheets are respectively installed on both sides of an end of the slider away from the telescopic spring, the arc-shaped rebound sheets and the bayonet are located on the same side, a moving plate is respectively installed on the other end of each of the arc-shaped rebound sheets, a blocking block is installed on the side wall of the other end of the moving plate, and the blocking block is located between the two groups of moving plates.

[0010] Preferably, the outer wall of the shell is wrapped with an elastic layer.

[0011] Beneficial effects: The utility model relates to a multifunctional elastic band. By applying tension to the pull rings on both sides of the shell, the elastic band wound on the rotating shaft is pulled out, and according to the height of the user, the corresponding elastic band is pulled out. After the elastic band is pulled out, force is applied to the limiting component to squeeze the elastic band through the limiting component, so that the pulled elastic band is always maintained at a suitable length for the user to exercise. There is no need to use additional fixing auxiliary tools to wind the elastic band, so the length of the elastic band can be adjusted, thereby increasing the frequency of use of the elastic band and also improving the use scenarios of the elastic band. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of the shell of the utility model;

[0015] Figure 4 This is a schematic diagram of the coil spring structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the elastic band structure of the utility model;

[0017] Figure 6 It is a schematic diagram of the structure of the limit assembly of the utility model.

[0018] Figures 1 to 6 The figures are marked as follows: 1. shell; 2. partition; 3. opening; 4. rotating shaft; 5. coil spring; 6. elastic band; 7. pull ring; 8. limit assembly; 9. limit hole; 801. traction shell; 802. belt outlet; 803. moving rod; 804. baffle; 805. snap-on protrusion; 806. extrusion plate; 807. spike; 808. contraction spring; 809. placement shell; 810. bayonet; 811. slider; 812. arc-shaped rebound sheet; 813. moving plate; 814. block. DETAILED DESCRIPTION

[0019] like Figures 1 to 6As shown, the utility model provides a technical solution: a multifunctional elastic band, including a shell 1, the shell 1 is hollow inside, the shell 1 is made of hard material, in this embodiment, the shell 1 is a rectangular parallelepiped, and two groups of partitions 2 are installed in the longitudinal direction of the shell 1. In this embodiment, the partitions 2 are arranged in parallel along the length direction of the shell 1, and the length direction of the rectangular parallelepiped is divided into three groups of cavities, the cavities at both ends are the same size, and the middle cavity is smaller than the cavities at both ends. Openings 3 are opened on the opposite side walls of the shell 1, and the openings 3 are respectively connected to the cavities at both ends. A rotating shaft 4 is rotatably installed in the shell 1, and the rotating shaft 4 vertically passes through the partition 2. A coil spring 5 is installed in the center of the rotating shaft 4, and the coil spring 5 is located in the middle cavity. One end of the coil spring 5 is fixedly connected to the rotating shaft 4, and the other end of the coil spring 5 is fixedly connected to the inside of the shell 1. Elastic belts 6 are respectively installed at both ends of the rotating shaft 4. The winding directions of the elastic belts 6 are opposite. The fixed end of the elastic belt 6 is fixedly connected to the rotating shaft 4. The moving end of the elastic belt 6 passes through the opening 3 and is connected to the pull ring 7. Limiting components 8 are respectively installed at the openings 3. The component 8 is used to limit and fix the elastic band 6. When the user needs to use the elastic band 6, an external force is applied to the pull ring 7, and the elastic band 6 located in the shell 1 is pulled out. In the process of the elastic band 6 being pulled out, the rotating shaft 4 rotates accordingly, driving the coil spring 5 to tighten. When the elastic band 6 is pulled out to a suitable length, an external force is applied to the limiting component 8. Under the action of the limiting component 8, the part of the elastic band 6 that contacts the limiting component 8 is limited and fixed at the opening 3 of the shell 1, so that the length of the elastic band 6 can be adjusted, and the length of the removed elastic band 6 is adjusted to a suitable length for the user to exercise. There is no need to use additional fixing auxiliary tools to wind the elastic band 6 to adjust the length of the elastic band 6, thereby increasing the frequency of use of the elastic band 6 and also increasing the use scene of the elastic band 6. Since the shell 1 is made of hard material, in order to avoid the user's discomfort caused by the contact between the shell 1 and the body during use, in a further embodiment, the outer wall of the shell 1 is wrapped with an elastic layer. Even if the shell 1 contacts the body during use, damage to the body can be avoided through the design of the elastic layer.

[0020] In a further embodiment, the fixed end of the elastic band 6 is connected to the outer wall of the rotating shaft 4, and the wide surface of the elastic band 6 is provided with a plurality of limiting holes 9, and the limiting holes 9 penetrate the telescopic elastic band 6, and the limiting holes 9 are arranged in a linear array along the length direction of the elastic band 6, and the limiting holes 9 are used for limiting the elastic band 6 by partially passing through the limiting holes 9 of the limiting component 8.

[0021] In a further embodiment, Figure 6As shown, the limiting assembly 8 includes a traction shell 801, which is installed at the opening 3 of the shell 1. The side wall of the traction shell 801 is provided with a belt outlet 802, and the belt outlet 802 is parallel to the axis of the rotating shaft 4. The belt outlet 802 is used for the elastic belt 6 to move out of the shell 1. A moving part is installed on one side wall of the traction shell 801; the moving part includes a moving rod 803, and the moving rod 803 is slidably inserted into the traction shell 801. The moving rod 803 operatively passes through the elastic belt 6, and the active end of the moving rod 803 is installed There is a baffle 804, the baffle 804 and the moving rod 803 are perpendicular to each other, the outer wall of the passive end of the moving rod 803 is installed with a clamping protrusion 805, which is connected with the locking part through the clamping protrusion 805 to achieve the limit of the elastic band 6, and the moving rod 803 is installed with an extrusion plate 806, the length direction of the extrusion plate 806 is the same as the width direction of the elastic band 6, and the outer wall of the extrusion plate 806 in contact with the elastic band 6 is provided with a plurality of spikes 807, and the rectangular array of the spikes 807 is arranged on the extrusion plate 806. On the outer wall, a contraction spring 808 is provided between the extrusion plate 806 and the baffle 804, and the contraction spring 808 is sleeved on the moving rod 803, one end of which is fixedly connected to the extrusion plate 806, and the other end is connected to the inner wall of the traction shell 801; the locking part includes a placement shell 809, and the placement shell 809 is installed on the side wall of the traction shell 801 opposite to the moving part. The placement shell 809 is a hollow structure with an opening 3 at one end, wherein the hollow structure is connected to the traction shell 801, and the side wall opposite to the opening 3 of the placement shell 809 is opened. A bayonet 810 is provided, which contacts the outer wall of the traction shell 801, and a slider 811 is installed in the placement shell 809 through a telescopic spring. Arc-shaped rebound pieces 812 are installed on both sides of the end of the slider 811 away from the telescopic spring. The arc-shaped rebound pieces 812 and the bayonet 810 are located on the same side, and a moving plate 813 is installed at the other end of each of the arc-shaped rebound pieces 812. A block 814 is installed on the side wall of the other end of the moving plate 813, and the block 814 is located between the two groups of moving plates 813.

[0022] When it is necessary to limit and fix the elastic band 6, an external force is applied to the baffle 804 to drive the end of the mounting protrusion of the moving rod 803 to approach the locking portion. When the end of the moving rod 803 contacts the slider 811, the slider 811 is driven to move into the placement shell 809 to squeeze the telescopic spring. During this process, the moving plate 813 also moves into the placement shell 809. Under the action of the inner wall of the placement shell 809, the moving plates 813 are brought close to each other. In the process of the moving plates 813 approaching each other, the block 814 located on the moving plate 813 contacts the protrusion at the end of the moving rod 803. Under the action of the moving plate 813 and the block 814, the moving rod 803 and the protrusion are tightly embraced and locked. , until the slider 811 cannot move, the applied external force is cancelled, and the slider 811 moves back under the action of the telescopic spring. During the movement, the ends of the moving plate 813 are moved away from each other by a certain distance under the action of the arc-shaped rebound sheet 812, and the ends of the moving plate 813 are limited by the outer wall of the placement shell 809. The moving plate 813 and the block 814 keep the moving rod 803 and the protrusion tightly locked. At this time, the spike 807 on the extrusion plate 806 squeezes the elastic band 6, reducing the distance between the spike 807 and the inner wall of the placement shell 809, thereby achieving the limit fixation of the elastic band 6 and ensuring that the pulled out elastic band 6 remains outside the shell 1 for the user to exercise.

[0023] When the elastic band 6 needs to be retracted, the movable plate 813 at the bayonet 810 is squeezed, and under the action of the telescopic spring, the movable plate 813 moves out of the placement shell 809, and the movable plate 813 and the block 814 contact the movable rod 803 and the protrusion, and the movable rod 803 moves under the recovery force of the contraction spring 808, driving the squeezing plate 806 to separate from the elastic band 6, and the elastic band 6 returns to the shell 1 under the action of the coil spring 5, and the elastic band 6 can be retracted.

[0024] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A multifunctional elastic band, characterized in that: The invention comprises a shell (1), wherein two groups of partitions (2) are longitudinally installed in the shell (1) to divide the inside of the shell (1) into three groups of cavities, openings (3) are opened on opposite side walls of the shell (1), and the openings (3) are respectively connected to the cavities at the two ends of the shell (1), a rotating shaft (4) is rotatably installed in the shell (1), and the rotating shaft (4) vertically penetrates the partition (2), a coil spring (5) is installed in the center of the rotating shaft (4), and the coil spring (5) is located in the middle cavity, elastic bands (6) are respectively installed at both ends of the rotating shaft (4), and the winding directions of the elastic band (6) are opposite, and the moving end of the elastic band (6) passes through the opening (3) and is connected to the pull ring (7), and the openings (3) are respectively installed with limit components (8), and the limit components (8) are used to limit and fix the elastic band (6).

2. A multifunctional elastic band according to claim 1, characterized in that: The fixed end of the elastic band (6) is connected to the outer wall of the rotating shaft (4); a plurality of limiting holes (9) are provided on the wide surface of the elastic band (6); the limiting holes (9) penetrate the telescopic elastic band (6); the limiting holes (9) are arranged in a linear array along the length direction of the elastic band (6); the limiting holes (9) are used for a part of the limiting component (8) to pass through the limiting holes (9) to limit the elastic band (6).

3. A multifunctional elastic band according to claim 1, characterized in that: The limit assembly (8) comprises a traction shell (801) which is mounted at the opening (3) of the shell (1); a side wall of the traction shell (801) is provided with a belt outlet (802), the belt outlet (802) is parallel to the axis of the rotating shaft (4), and the belt outlet (802) is used for the elastic band (6) to move out of the shell (1); a moving part is mounted on one side wall of the traction shell (801), and the moving part is used for squeezing the elastic band (6); the moving part and the belt outlet (802) are located on a side wall adjacent to the traction shell (801); a locking part is further provided on the side wall of the shell (1), and the locking part and the moving part are arranged opposite to each other. Under the action of an external force, the moving part moves towards the locking part until the locking part embraces and locks the moving part, thereby limiting and fixing the length of the elastic band (6) pulled out.

4. A multifunctional elastic band according to claim 3, characterized in that: The moving part comprises a moving rod (803), the moving rod (803) is slidably inserted into the traction shell (801), the moving rod (803) is operatively passed through the elastic band (6), a baffle (804) is installed on the active end of the moving rod (803), the baffle (804) and the moving rod (803) are vertically arranged, a clamping protrusion (805) is installed on the outer wall of the passive end of the moving rod (803), and the clamping protrusion (805) is connected to the locking part through the clamping protrusion (805) to realize locking and limiting the elastic band (6), and an extrusion plate is installed on the moving rod (803) (806), the length direction of the extrusion plate (806) is the same as the width direction of the elastic band (6), a plurality of spikes (807) are provided on the outer wall of the extrusion plate (806) in contact with the elastic band (6), the spikes (807) are arranged in a rectangular array on the outer wall of the extrusion plate (806), a contraction spring (808) is provided between the extrusion plate (806) and the baffle (804), the contraction spring (808) is sleeved on the moving rod (803), one end of the contraction spring is fixedly connected to the extrusion plate (806), and the other end is connected to the inner wall of the traction shell (801).

5. A multifunctional elastic band according to claim 3, characterized in that: The locking portion comprises a placement shell (809), the placement shell (809) being mounted on a side wall of a traction shell (801) opposite to the moving portion, the placement shell (809) being a hollow structure with an opening (3) at one end, wherein the hollow structure is in communication with the traction shell (801), and a bayonet (810) is provided on a side wall opposite to the opening (3) of the placement shell (809), the bayonet (810) being in contact with an outer wall of the traction shell (801), and being mounted on the placement shell (809) via a telescopic spring. 09), arc-shaped rebound sheets (812) are respectively installed on both sides of the end of the slider (811) away from the telescopic spring, the arc-shaped rebound sheets (812) and the bayonet (810) are located on the same side, and a moving plate (813) is respectively installed on the other end of each arc-shaped rebound sheet (812), and a clamping block (814) is installed on the side wall of the other end of the moving plate (813), and the clamping block (814) is located between the two groups of moving plates (813).

6. A multifunctional elastic band according to any one of claims 1 to 5, characterized in that: The outer wall of the shell (1) is wrapped with an elastic layer.

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