Portable chest expander

Abstract

The utility model discloses a portable chest expander, and belongs to the technical field of fitness equipment. Comprising a first tension ring and a second tension ring, first mounting parts are arranged on the first tension ring and the second tension ring respectively, and the two ends of a plurality of tension springs are mounted on the first mounting parts of the first tension ring and the second tension ring respectively through mounting buckles to be assembled into the chest expander. Second mounting parts are arranged on the side walls, adjacent to the first mounting parts, of the first tension ring, the tension spring is mounted on the first mounting parts through the mounting buckles to form the spring exerciser during use, and the first tension ring and the second tension ring are stacked during storage to form the spring exerciser. And the tension spring is mounted on the second mounting part through the mounting buckle and wraps the second tension ring. According to the utility model, the occupied space is reduced, daily carrying is convenient, and in the carrying process, loss of parts can be effectively prevented in the carrying process.

Description

Technical Field

[0001] The utility model belongs to the technical field of fitness equipment, and in particular relates to a portable tensioner. 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. With the continuous updating of fitness equipment, people's fitness forms have become diversified. Some people choose to exercise through running, swimming and ball games, while others choose to go to the gym to exercise with various fitness equipment. However, no matter which method is used, people need to take out a whole block of time to exercise. Especially for office workers or students, due to work pressure and study pressure, they usually use fragmented time to exercise, and resistance bands have become the first choice. The existing resistance bands mostly use elastic tubes, and connecting beads larger than the diameter of the elastic tubes are inserted at the connecting parts to form an annular resistance band. During the use of such resistance bands for fitness, the elastic tubes on the connecting beads are prone to falling off due to the continuous expansion and contraction of the resistance bands. There are also tensioners using a combination of tension springs and pull rings. Although the safety performance of the tensioner is improved, since it uses multiple tension springs, it requires a larger space when carrying it outside, especially when it is necessary to travel light, which causes the user to give up carrying it. Utility Model Content

[0003] Purpose of the utility model: to provide a portable tensioner to solve the above-mentioned problems existing in the prior art.

[0004] Technical solution: A portable tensioner comprises a first tension ring and a second tension ring, wherein the first tension ring and the second tension ring are respectively provided with a first mounting portion, and the two ends of a plurality of tension springs are respectively mounted on the first mounting portions of the first tension ring and the second tension ring through mounting buckles to be assembled into a tensioner, and the side walls of the first tension ring adjacent to the first mounting portion are both provided with a second mounting portion. When in use, the tension spring is mounted on the first mounting portion through the mounting buckle to be assembled into the tensioner, and when stored, the first tension ring and the second tension ring are stacked, and the tension spring is mounted on the second mounting portion through the mounting buckle and wraps the second tension ring.

[0005] Preferably, the first mounting portion includes a plurality of C-shaped grooves and hanging rods having the same number as the C-shaped grooves, the C-shaped grooves are arranged on one side outer wall of the first tension ring and the second tension ring, and the two ends of the hanging rods are respectively installed on the opposite inner walls of the C-shaped grooves, and the tension spring is installed on the first tension ring and the second tension ring to be assembled into a tensioner through the mutual cooperation of the mounting buckle and the hanging rod.

[0006] Preferably, the second mounting portion includes a plurality of U-shaped grooves and fixing rods having the same number as the U-shaped grooves, the U-shaped grooves being arranged on the side wall opposite to the first tension ring, the U-shaped grooves extending along the end of the side wall of the first tension ring to the other end, the U-shaped grooves penetrating the side wall of the first tension ring, the two ends of the fixing rods being respectively mounted on the inner walls opposite to the U-shaped grooves, and the two ends of the tension spring being respectively mounted in the U-shaped grooves of the opposite side walls of the first tension ring through mounting buckles.

[0007] Preferably, the mounting buckle includes a lock buckle body, which is C-shaped, a lock core is installed at one end of the lock buckle body, a telescopic rod is installed at the other end of the lock buckle body, and a locking part is installed at the movable end of the telescopic rod. By applying external force to the locking part, the telescopic rod is extended, the locking part approaches the lock core, and the lock core is inserted into the locking part, and the lock buckle body, the telescopic rod, the lock core, and the locking part form a closed loop.

[0008] Preferably, the locking portion includes a shell, which is a hollow structure with an opening at one end, the shell is installed at the movable end of the telescopic rod and its opening is away from the telescopic rod, a bayonet is provided on the side walls opposite to the opening of the shell, a clamping ring is installed at the opening of the shell, the outer circumference of the clamping ring is greater than the outer circumference of the shell, a slider is installed in the shell through a telescopic spring, arc-shaped rebound sheets are respectively installed on both sides of the end of the slider, the arc-shaped rebound sheets and the bayonet are located on the same side, and a movable plate is respectively installed at the other end of each of the arc-shaped rebound sheets, and a protrusion is installed on the side wall of the other end of the movable plate, and the protrusion is located between the two groups of movable plates.

[0009] Preferably, the telescopic rod includes a mounting ring, which is mounted on one end of the lock body, and a block ring is mounted on the end of the mounting ring. The inner diameter of the block ring is smaller than the inner diameter of the mounting ring, and the mounting ring and the block ring cooperate to form an annular column with a reduced opening, and a return spring is installed in the mounting ring, one end of the return spring is connected to the end of the lock body, and a moving column is installed on the other end of the return spring, and the moving column is partially located in the mounting ring. A flange is installed on the end of the moving column connected to the return spring, and the cooperation of the flange and the block ring limits the moving range of the moving column.

[0010] Beneficial effects: The utility model relates to a portable tensioner. When it is needed, the two ends of the tension spring are respectively installed on the first installation part of the first tension ring and the first installation part of the second tension ring through the installation buckle to assemble into a tensioner for the user to use for exercise. When it is needed to be stored and carried, the first tension ring, the tension spring and the second tension ring are separated from each other by disassembling the installation buckle, and the first tension ring and the second tension ring are stacked on each other. The tension spring is wrapped around the outside of the first tension ring and the second tension ring through the installation buckle, and is installed on the second installation part through the installation buckle to achieve fixation, which reduces the occupied space and effectively prevents the loss of parts during carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation state of the utility model;

[0012] Figure 2 The first tension ring structure of the utility model is schematically shown in FIG. Figure 1 ;

[0013] Figure 3 The first tension ring structure of the utility model is schematically shown in FIG. Figure 2 ;

[0014] Figure 4 This is a schematic diagram of the installation buckle of the utility model;

[0015] Figure 5 It is a cross-sectional view of the installation buckle of the utility model;

[0016] Figure 6 for Figure 5 A magnified image of point A;

[0017] Figure 7 The utility model is a mounting buckle explosion Figure 1 ;

[0018] Figure 8 The utility model is a mounting buckle explosion Figure 2 .

[0019] Figures 1 to 8 The figures are marked as follows: 1. first tension ring; 2. second tension ring; 3. mounting buckle; 4. tension spring; 5. first mounting portion; 6. second mounting portion; 51. U-shaped groove; 52. hanging rod; 61. U-shaped groove; 62. fixing rod; 301. lock buckle body; 302. lock core; 303. shell; 304. bayonet; 305. snap ring; 306. telescopic spring; 307. slider; 308. arc-shaped rebound sheet; 309. movable plate; 310. protrusion; 311. mounting ring; 312. blocking ring; 313. reset spring; 314. movable column; 315. flange. DETAILED DESCRIPTION

[0020] like Figures 1 to 8 As shown, the utility model provides a technical solution: a portable tensioner, comprising a first tension ring 1 and a second tension ring 2, as shown in Figures 1 to 3 As shown, the first tension ring 1 and the second tension ring 2 are respectively provided with a first mounting portion 5, and the two ends of a plurality of tension springs 4 are respectively mounted on the first mounting portions 5 of the first tension ring 1 and the second tension ring 2 through the mounting buckle 3 to assemble a tensioner, as shown in FIG. Figure 3 As shown, the second mounting portion 6 is provided on the side wall adjacent to the first tension ring 1 and the first mounting portion 5. When in use, the two ends of the tension spring 4 are respectively mounted on the first mounting portion 5 of the first tension ring 1 and the first mounting portion 5 of the second tension ring 2 through the mounting buckle 3 to assemble into a tensioner for the user to use for exercise. When stored, the first tension ring 1, the tension spring 4 and the second tension ring 2 are separated from each other by disassembling the mounting buckle 3, and the first tension ring 1 and the second tension ring 2 are stacked on each other, and the tension spring 4 is wound around the outside of the first tension ring 1 and the second tension ring 2 through the mounting buckle 3, and is mounted on the second mounting portion 6 through the mounting buckle 3 to achieve fixation, which reduces the occupied space and effectively prevents the loss of parts during carrying.

[0021] In a further embodiment, Figure 2 As shown, the first mounting portion 5 includes a plurality of U-shaped grooves 51 and hanging rods 52 having the same number as the U-shaped grooves 51. The U-shaped grooves 51 are arranged on one side outer wall of the first tension ring 1 and the second tension ring 2, and the two ends of the hanging rod 52 are respectively installed on the inner walls opposite to the U-shaped grooves 51. By hooking the mounting buckle 3 on the hanging rod 52, the tension spring 4 is installed on the first tension ring 1 and the second tension ring 2, so that the tension spring 4 and the first tension ring 1 and the second tension ring 2 are assembled into a tensioner for users to use for exercise, which effectively avoids the tension spring 4 from being separated from the first tension ring 1 and the second tension ring 2 during use, thereby ensuring the safety of the user.

[0022] In a further embodiment, Figure 3As shown, the second mounting portion 6 includes a plurality of U-shaped grooves 61 and fixing rods 62 having the same number as the U-shaped grooves 61, the U-shaped grooves 61 being arranged on the side wall opposite to the first tension ring 1, the U-shaped grooves 61 extending along the end of the side wall of the first tension ring 1 to the other end, the U-shaped grooves 61 passing through the side wall of the first tension ring 1, and the two ends of the fixing rods 62 being respectively mounted on the inner walls opposite to the U-shaped grooves 61, when it is necessary to store and carry them, the first tension ring 1 and the second tension ring 2 are stacked on each other, and the tension spring 4 is wrapped around the outside of the first tension ring 1 and the second tension ring 2 through the mounting buckle 3, and is mounted on the second mounting portion 6 through the mounting buckle 3, and the mounting buckle 3 is locked on the fixing rod 62, at which time the second tension ring 2 is at the lower limit of the tension spring 4, which reduces the occupied space and effectively prevents the loss of parts during carrying.

[0023] In a further embodiment, Figures 4 to 8 As shown, the mounting buckle 3 includes a lock buckle body 301, the lock buckle body 301 is C-shaped, and a lock core 302 is installed at one end of the lock buckle body 301. Figure 7As shown, a telescopic rod is installed at the other end of the lock body 301, and a locking part is installed at the movable end of the telescopic rod. By applying external force to the locking part, the telescopic rod is extended, and the locking part approaches the lock core 302, and the lock core 302 is inserted into the locking part. The lock body 301, the telescopic rod, the lock core 302, and the locking part form a closed loop, wherein the locking part includes a shell 303, and the shell 303 is a hollow structure with an opening at one end. The shell 303 is installed at the movable end of the telescopic rod and its opening is far away from the telescopic rod. A bayonet 304 is provided on the side walls opposite to the opening of the shell 303, and a snap ring 305 is installed at the opening of the shell 303. The outer circumference of the snap ring 305 is greater than the outer circumference of the shell 303. A slider 307 is installed in the shell 303 through a telescopic spring 306. Arc-shaped rebound sheets 308 are respectively installed on both sides of the end of the slider 307. The arc-shaped rebound sheet 308 and the bayonet 304 are located on the same side. Each The other end of the arc-shaped rebound sheet 308 is respectively installed with a moving plate 309, and the side wall of the other end of the moving plate 309 is installed with a protrusion 310, and the protrusion 310 is located between the two groups of moving plates 309; the telescopic rod includes a mounting ring 311, which is installed at one end of the lock body 301, and a resistance ring 312 is installed at the end of the mounting ring 311. The inner diameter of the resistance ring 312 is smaller than the inner diameter of the mounting ring 311, and the mounting ring 311 and the resistance ring 312 cooperate to form an annular column with a reduced opening, and a return spring 313 is installed in the mounting ring 311, and one end of the return spring 313 is connected to the end of the lock body 301, and the other end of the return spring 313 is installed with a moving column 314, and the moving column 314 is partially located in the mounting ring 311, and the end of the moving column 314 connected to the return spring 313 is installed with a flange 315, and the cooperation of the flange 315 and the resistance ring 312 limits the moving range of the moving column 314.

[0024] When the mounting buckle 3 needs to be locked, an external force is applied to the shell 303 to make the shell 303 approach the lock core 302. At this time, the telescopic spring 306 is stretched, and when the slider 307 contacts the lock core 302, under the action of the lock core 302, the slider 307 moves in the direction of the telescopic rod, squeezing the return spring 313 until the movable plate 309 moves into the bayonet 304. At this time, the protrusion 310 on the movable plate 309 tightly clamps the lock core 302, canceling the force applied to the shell 303. At this time, the slider 307 slides in the shell 303 under the action of the return spring 313 until the movable plate 309 moves into the bayonet 304. When the locking cam 302 is in the unlock state, the locking cam 301 is in the unlock state, and the locking cam 302 is unlocked.

[0025] 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 portable tensioner, It is characterized in that The invention comprises a first tension ring (1) and a second tension ring (2), wherein the first tension ring (1) and the second tension ring (2) are respectively provided with a first mounting portion (5), and two ends of a plurality of tension springs (4) are respectively mounted on the first mounting portions (5) of the first tension ring (1) and the second tension ring (2) through a mounting buckle (3) to form a tensioner, and a second mounting portion (6) is provided on the side wall of the first tension ring (1) adjacent to the first mounting portion (5). When in use, the tension spring (4) is mounted on the first mounting portion (5) through the mounting buckle (3) to form a tensioner, and when stored, the first tension ring (1) and the second tension ring (2) are stacked, and the tension spring (4) is mounted on the second mounting portion (6) through the mounting buckle (3) and wraps the second tension ring (2).

2. A portable tensioner according to claim 1, It is characterized in that The first mounting portion (5) comprises a plurality of U-shaped grooves (51) and hanging rods (52) having the same number as the U-shaped grooves (51); the U-shaped grooves (51) are arranged on one side outer wall of the first tension ring (1) and the second tension ring (2); the two ends of the hanging rod (52) are respectively mounted on the inner walls opposite to the U-shaped grooves (51); and the tension spring (4) is mounted on the first tension ring (1) and the second tension ring (2) to form a tensioner through the cooperation of the mounting buckle (3) and the hanging rod (52).

3. A portable tensioner according to claim 1, It is characterized in that The second mounting portion (6) comprises a plurality of U-shaped grooves (61) and fixing rods (62) having the same number as the U-shaped grooves (61). The U-shaped grooves (61) are arranged on the side wall opposite to the first tension ring (1). The U-shaped grooves (61) extend along the end of the side wall of the first tension ring (1) to the other end. The U-shaped grooves (61) penetrate the side wall of the first tension ring (1). The two ends of the fixing rods (62) are respectively mounted on the inner walls opposite to the U-shaped grooves (61). The two ends of the tension spring (4) are respectively mounted in the U-shaped grooves (61) on the side walls opposite to the first tension ring (1) through the mounting buckles (3).

4. A portable tensioner according to claim 1, It is characterized in that The mounting buckle (3) comprises a lock buckle body (301), the lock buckle body (301) is C-shaped, a lock core (302) is mounted on one end of the lock buckle body (301), a telescopic rod is mounted on the other end of the lock buckle body (301), a locking portion is mounted on the movable end of the telescopic rod, and an external force is applied to the locking portion to extend the telescopic rod, so that the locking portion approaches the lock core (302), and the lock core (302) is inserted into the locking portion, so that the lock buckle body (301), the telescopic rod, the lock core (302), and the locking portion form a closed loop.

5. A portable tensioner according to claim 4, It is characterized in that The locking portion comprises a shell (303), wherein the shell (303) is a hollow structure with an opening at one end. The shell (303) is mounted on the movable end of the telescopic rod and its opening is away from the telescopic rod. A bayonet (304) is provided on the side walls opposite to the opening of the shell (303). A snap ring (305) is mounted at the opening of the shell (303). The outer perimeter of the snap ring (305) is greater than the outer perimeter of the shell (303). A slider (307) is mounted in the shell (303) via a telescopic spring (306). Arc-shaped rebound sheets (308) are respectively mounted on both sides of the end of the slider (307). The arc-shaped rebound sheets (308) and the bayonet (304) are located on the same side. A movable plate (309) is respectively mounted on the other end of each of the arc-shaped rebound sheets (308). A protrusion (310) is mounted on the side wall of the other end of the movable plate (309). The protrusion (310) is located between two groups of movable plates (309).

6. A portable tensioner according to claim 4, It is characterized in that The telescopic rod comprises a mounting ring (311) mounted on one end of the lock body (301); a resistance ring (312) is mounted on the end of the mounting ring (311); the inner diameter of the resistance ring (312) is smaller than the inner diameter of the mounting ring (311); the mounting ring (311) and the resistance ring (312) cooperate to form a ring column with a reduced opening; a return spring (313) is mounted in the mounting ring (311); one end of the return spring (313) is connected to the end of the lock body (301); a moving column (314) is mounted on the other end of the return spring (313); the moving column (314) is partially located in the mounting ring (311); a flange (315) is mounted on the end of the moving column (314) connected to the return spring (313); and the movement range of the moving column (314) is limited by the cooperation of the flange (315) and the resistance ring (312).

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