Chest expander for physical exercise

Abstract

The utility model discloses a chest expander for physical exercise, and relates to the technical field of chest expanders. The seat comprises a base, a plurality of cushion blocks are arranged at the bottom of the base, a seat body is arranged on the upper side of the base in a sliding fit mode, two fixing frames far away from the seat body are arranged on the upper side of the base, two pedals corresponding to the fixing frames are arranged on the upper side of the base, and tension assemblies are arranged between the fixing frames and the base. The tension assembly comprises a fixing frame arranged on the inner wall of the fixing frame. By rotating the first threaded rod, the position of the second moving block in the fixed box can be accurately controlled, the compression degree of the spring is further changed, and accurate adjustment of the tensile force is achieved. Due to the accurate tension adjusting function, the chest expander can meet the requirement of a beginner for small-intensity training and can also meet the requirement of an advanced person for high-intensity training, and the chest expander is suitable for users at different training stages.

Description

TECHNICAL FIELD

[0001] The utility model relates to tensioner technical field, specifically, a tensioner for physical exercise. BACKGROUND

[0002] The utility model discloses a tensioner for physical exercise, including the bottom plate, the front and rear both sides in the bottom plate inside are all movably connected with the limiting board, the top fixed mounting of limiting board is located the stool of bottom plate top, the utility model discloses a limiting board, clamping groove, rectangle, moving block and clamping plate are set up, and the operator first pulls the pull plate, and when the pull plate will take the clamping plate and move steadily under the limiting cooperation of rectangle and moving block, and when the clamping plate will extrude the spring, and when the clamping plate will leave the inside of clamping groove, and when the operator moves the stool to left side, and the stool will move steadily to left side under the limiting effect of limiting board, and when the stool moves to the position of operator's demand, and when the pull plate is released, and the spring will make the clamping plate enter the inside of clamping groove again due to the elastic recovery effect, and when this just plays the effect of changing the spacing between the stool and the pedal.

[0003] The above-mentioned patent is provided with elastic ropes on the two pedals of the bottom plate, and the user performs physical exercise by pulling the elastic ropes through the handle, but the length and elasticity of the elastic ropes are fixed, so the intensity cannot be adjusted, and it is inconvenient for different age groups to use.

[0004] Therefore, we improve it and propose a tensioner for physical exercise. UTILITY MODEL CONTENTS

[0005] The utility model is aimed at the user performing physical exercise by pulling the elastic ropes through the handle, but the length and elasticity of the elastic ropes are fixed, so the intensity cannot be adjusted, and it is inconvenient for different age groups to use.

[0006] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme:

[0007] A tensioner for physical exercise is provided to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] The utility model discloses a tensioner for physical exercise, including the base, the bottom of the base is equipped with a plurality of cushion blocks, the upper side of the base is slidably connected with a seat, the upper side of the base is equipped with two fixed frames away from the seat, the upper side of the base is equipped with two foot pedals corresponding to the fixed frame, the fixed frame and the base are provided with a tension assembly, and the tension assembly comprises a fixed frame arranged on the inner wall of the fixed frame.

[0010] By rotating the first threaded rod, the position of the second moving block in the fixed box can be accurately controlled, thereby changing the compression degree of the spring and realizing accurate adjustment of the pulling force.

[0011] As a preferred embodiment of the utility model provides the sports exercise with the puller, the upper and lower sides of the fixed frame are rotationally matched with pulleys, a pull rope is sleeved on the two pulleys, an end of the pull rope on the upper side of the base is provided with a handle, and the side of the fixed frame is provided with a limiting groove corresponding to the two pulleys and matched with the pull rope.

[0012] As a preferred embodiment of the utility model provides the sports exercise with the puller, the bottom of the base is provided with a mounting cavity, the side of the fixed frame is provided with a fixed plate located in the mounting cavity, the pulley on the lower side of the fixed frame is located in the mounting cavity, and the upper side of the fixed plate is provided with a fixed box.

[0013] As a preferred embodiment of the utility model provides the sports exercise with the puller, the inside of the fixed box is slidably matched with a first moving block away from the fixed frame, the inside of the fixed box is slidably matched with a second moving block close to the fixed frame, and the first moving block and the second moving block are provided with a spring.

[0014] As a preferred embodiment of the utility model provides the sports exercise with the puller, one end of the pull rope in the mounting cavity penetrates the second moving block and is arranged on the first moving block, the upper side of the fixed box is provided with a sliding groove, and the upper side of the second moving block is provided with a sliding block slidably matched in the sliding groove.

[0015] As a preferred embodiment of the utility model provides the sports exercise with the puller, the inner wall of the mounting cavity is rotationally matched with a first threaded rod penetrating to the outside of the base, and the first threaded rod is threadedly matched with the sliding block.

[0016] As a preferred embodiment of the utility model provides the sports exercise with the puller, the upper side of the base is provided with a displacement slot, and the bottom of the seat is provided with a displacement block slidably matched in the displacement slot.

[0017] As a preferred embodiment of the utility model provides the sports exercise with the puller, the inner wall of the displacement slot is rotationally matched with a second threaded rod penetrating to the outside of the base, and the side of the displacement block is provided with a threaded groove threadedly matched with the second threaded rod.

[0018] Compared with the prior art, the utility model discloses the beneficial effects have: through the rotation first threaded rod, can accurate control second moving block in the position of fixed box, and then change the compression degree of spring, realize the accurate adjustment of the size of tension. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the tensioner for sports exercise that the utility model provides;

[0020] Figure 2 It is the tensioner assembly structure schematic diagram that the utility model provides;

[0021] Figure 3 It is the fixed box side cross section structure schematic diagram that the utility model provides;

[0022] Figure 4 It is the whole side cross section structure schematic diagram of the tensioner for sports exercise that the utility model provides.

[0023] Indicated in the drawing:

[0024] 1, base, 2, cushion block, 3, seat, 4, fixed frame, 5, foot pedal, 6, tensioner assembly, 7, displacement slot, 8, displacement block, 9, second threaded rod, 10, threaded slot, 11, installation cavity, 601, fixed frame, 602, pulley, 603, pull rope, 604, handle, 605, limit slot, 606, fixed plate, 607, fixed box, 608, first moving block, 609, second moving block, 610, spring, 611, sliding slot, 612, sliding block, 613, first threaded rod. DETAILED DESCRIPTION

[0025] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0026] Therefore, the following detailed description of the embodiment of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0027] It should be noted that the embodiments and the features and technical solutions in the embodiments in the utility model can be combined with each other without conflict.

[0028] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it is not necessary to further define and explain it in the subsequent views.

[0029] In the description of the present application, it should be noted that the terms "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only used to facilitate the description of the present application and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings.

[0031] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0032] It should be noted that like reference numerals and letters refer to like items in the several views, and once an item is defined in one view, it is not necessary to further define and explain it in the subsequent views.

[0033] Example 1

[0034] Please refer to Figures 1-4The utility model provides a sports exercise with puller, including base 1, the bottom of base 1 is equipped with a plurality of cushion 2, the upper side of base 1 is slidably fitted with seat 3, the upper side of base 1 is installed with two fixed frame 4 away from seat 3, the upper side of base 1 is equipped with two with fixed frame 4 corresponding footboard 5, be provided with puller assembly 6 between fixed frame 4 and base 1, puller assembly 6 includes the fixed frame 601 equipped on the inner wall of fixed frame 4. The upper and lower sides of fixed frame 601 are rotatably fitted with pulley 602, two pulley 602 are equipped with pull rope 603, and the end of pull rope 603 is equipped with handle 604 on the upper side of base 1, and the side of fixed frame 4 is equipped with the limit slot 605 corresponding with two pulley 602 and matched with pull rope 603. The bottom of base 1 is equipped with the installation cavity 11, and the side of fixed frame 4 is equipped with the fixed plate 606 in the installation cavity 11, and the pulley 602 in the lower side of fixed frame 4 is in the installation cavity 11, and the upper side of fixed plate 606 is equipped with fixed box 607. The inside of fixed box 607 is slidably fitted with the first moving block 608 away from fixed frame 4, and the inside of fixed box 607 is slidably fitted with the second moving block 609 close to fixed frame 4, and the first moving block 608 is equipped with spring 610 between the second moving block 609. The one end of pull rope 603 in the installation cavity 11 is equipped on the first moving block 608 by penetrating the second moving block 609, and the upper side of fixed box 607 is equipped with the sliding slot 611, and the upper side of second moving block 609 is equipped with the sliding block 612 slidably fitted in the sliding slot 611. The inner wall of installation cavity 11 is rotatably fitted with the first screw rod 613 penetrating to the outside of base 1, and the first screw rod 613 is threadedly fitted with sliding block 612.

[0035] The implementation process is as follows: the first threaded rod 613 penetrating to the outside of the base 1 is rotated, because the first threaded rod 613 is threadedly matched with the sliding block 612, the sliding block 612 is arranged on the upper side of the second moving block 609 and is slidingly matched in the sliding groove 611 arranged on the upper side of the fixed box 607, so that the first threaded rod 613 is rotated to drive the sliding block 612 and the second moving block 609 to slide in the fixed box 607. The spring 610 is arranged between the first moving block 608 and the second moving block 609, and one end of the pull rope 603 in the mounting cavity 11 penetrates through the second moving block 609 and is arranged on the first moving block 608, so that the compression degree of the spring 610 can be changed by changing the position of the second moving block 609, thereby adjusting the pulling force, and the user sits on the seat 3, steps on the foot pedal 5 with his feet, and holds the pull handle 604 with his hands and pulls it outward. The pull rope 603 is sleeved on the pulley 602 rotatingly matched on the upper and lower sides of the fixed frame 4, and when the pull handle 604 is pulled, the pull rope 603 moves on the pulley 602, and one end of the pull rope 603 in the mounting cavity 11 pulls the first moving block 608 to compress the spring 610, so that the pulling force training is realized. The limiting groove 605 arranged on the side of the fixed frame 4 can prevent the pull rope 603 from being separated from the pulley 602, and the pull rope 603 is matched with the pulley 602, so that the pulling process is more smooth, the jamming and resistance are reduced, and the smoothness of the exercise is improved. The limiting groove 605 arranged on the side of the fixed frame 4 can effectively prevent the pull rope 603 from being separated from the pulley 602, and the safety in use is ensured.

[0036] The implementation benefit is that the pulling force can be accurately adjusted by changing the compression degree of the spring 610.

[0037] Embodiment 2

[0038] The upper side of the base 1 is provided with a displacement groove 7, and the bottom of the seat 3 is provided with a displacement block 8 slidingly matched in the displacement groove 7. The inner wall of the displacement groove 7 is rotatingly matched with a second threaded rod 9 penetrating to the outside of the base 1, and the side of the displacement block 8 is provided with a threaded groove 10 threadedly matched with the second threaded rod 9.

[0039] The implementation process is as follows: when it is necessary to adjust the position of the seat 3, the second threaded rod 9 penetrating to the outside of the base 1 is rotated, because the displacement block 8 is arranged on the bottom of the seat 3 and is slidingly matched in the displacement groove 7, and the side of the displacement block 8 is provided with the threaded groove 10 threadedly matched with the second threaded rod 9, under the action of the thread, the displacement block 8 moves along the displacement groove 7, thereby driving the seat 3 to slide on the upper side of the base 1, so as to meet the needs of different users.

[0040] The implementation benefit is that the position of the seat 3 on the base 1 can be adjusted.

[0041] The above examples are only used to illustrate the technical solutions described in the utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the above-described various embodiments, the utility model is not limited to the above-described specific embodiments, and therefore any modification or equivalent replacement of the utility model is allowed. Any technical solution and improvement that does not deviate from the spirit and scope of the utility model is included in the scope of the claims of the utility model.

Claims

1. A chin-up bar for physical exercise, characterized in that Include: The base (1), the bottom of the base (1) is equipped with a plurality of pads (2), the upper side of the base (1) is slidably fitted with a seat (3), the upper side of the base (1) is provided with two fixed frames (4) away from the seat (3), the upper side of the base (1) is provided with two foot pedals (5) corresponding to the fixed frame (4), the fixed frame (4) and the base (1) are provided with a tension assembly (6), the tension assembly (6) comprises a fixed frame (601) mounted on the inner wall of the fixed frame (4), the upper and lower sides of the fixed frame (601) are rotatably fitted with a pulley (602), two pulleys (602) are sleeved with a pull rope (603), the end of the pull rope (603) on the upper side of the base (1) is equipped with a handle (604), the side of the fixed frame (4) is provided with a limiting groove (605) corresponding to the two pulleys (602) and matched with the pull rope (603), the bottom of the base (1) is provided with an installation cavity (11), the side of the fixed frame (4) is provided with a fixed plate (606) located in the installation cavity (11), the lower pulley (602) in the fixed frame (4) is located in the installation cavity (11), the upper side of the fixed plate (606) is provided with a fixed box (607), the inside of the fixed box (607) is slidably fitted with a first moving block (608) away from the fixed frame (4), the inside of the fixed box (607) is slidably fitted with a second moving block (609) close to the fixed frame (4), the first moving block (608) and the second moving block (609) are equipped with a spring (610), one end of the pull rope (603) located in the installation cavity (11) penetrates the second moving block (609) and is equipped on the first moving block (608), the upper side of the fixed box (607) is provided with a sliding groove (611), the upper side of the second moving block (609) is provided with a sliding block (612) slidably fitted in the sliding groove (611).

2. The resistance exercise device of claim 1 wherein: The inner wall of the installation cavity (11) is rotatably fitted with a first threaded rod (613) penetrating to the outside of the base (1), and the first threaded rod (613) is threadedly fitted with the sliding block (612).

3. The physical exercise puller according to claim 1, wherein The upper side of the base (1) is provided with a displacement slot (7), and the bottom of the seat (3) is provided with a displacement block (8) slidably fitted in the displacement slot (7).

4. The resistance exercise device of claim 3 wherein: The inner wall of the displacement slot (7) is rotatably fitted with a second threaded rod (9) penetrating to the outside of the base (1), and the side of the displacement block (8) is provided with a threaded groove (10) threadedly fitted with the second threaded rod (9).

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