CN220676647U - Tensile dorsum muscle training device - Google Patents

Abstract

The utility model relates to the technical field of fitness equipment, and specifically discloses a tension back muscle training device, which includes: a chassis, a main platform is fixedly installed on the top of the chassis, and training rockers are rotatably installed on the left and right sides of the main platform. The rocker arm includes a connecting shaft, a connecting seat is fixedly installed on the right end of the connecting shaft, a mounting ring is fixed on the side of the connecting seat, a screw rod is rotatably installed inside the mounting ring, and a lifting rod is movable inside the connecting seat; the utility model adopts The screw is used to drive the lifting rod to rise and fall as a whole, thereby changing the height of the gripping rod and changing the proportional relationship of the force arm to meet the needs of different users. The adjustment method is simple and easy to operate. By setting the grip wheel To change the relative narrowness of the grip, users with different frame sizes can adjust to their own suitable angle for tension training, achieving twice the result with half the effort, thus further improving the practicality of the overall device.

Description

A kind of tension back muscle training device

Technical field

The utility model belongs to the technical field of fitness equipment, and in particular relates to a back muscle pulling trainer.

Background technique

There are many kinds of construction equipment, through which users can achieve the purpose of exercising. Among them, there are training equipment specially designed to train back muscles. The user pulls the grip bar to drive the barbell plate at the bottom to lift, thereby achieving the rowing movement trajectory. To enhance the strength of the back muscles, although the existing back muscle training device can have a length-adjustable chest support block and a height-adjustable seat to adapt to more people, the existing back muscle training device has a handle The height and relative narrowness cannot be adjusted, resulting in users being unable to choose the most appropriate training angle according to their own conditions when using it. Secondly, the height cannot be adjusted, resulting in the distance from the grip to the pivot point and the distance from the pivot point to the weight point. The ratio is constant, that is, the force arm cannot be adjusted, so it cannot face the use of the user under different physical conditions, thus reducing the practicality of the overall device.

Utility Model Content

The purpose of this utility model is to provide a tension back muscle training device to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

A tension back muscle training device, including: a chassis, a main platform is fixedly installed on the top of the chassis, and training rocker arms are rotatably installed on both left and right sides of the main platform, and the training rocker arms include connecting shafts, A connecting seat is fixedly installed on the right end of the connecting shaft, and a mounting ring is fixed on the side of the connecting seat. A screw rod is rotatably installed inside the mounting ring, and a lifting rod is movable inside the connecting seat.

Preferably, foot pedals are fixedly installed on the left and right sides of the bottom end of the main platform, and a protective plate is fixedly installed on the top of the bottom frame.

Preferably, a bottom rod is fixedly installed on the side of the connecting seat, and a barbell plate placement rod is fixedly installed on the bottom end of the bottom rod.

Preferably, a transmission plate is fixedly installed on the side of the lifting rod, and the transmission plate is threadedly installed on the surface of the screw rod. A right-angle rod is fixedly installed on the top of the lifting rod, a sliding groove is opened on the surface of the right-angle rod, and a limiting ring is fixedly installed on the right side of the top of the right-angle rod.

Preferably, a limit disk is installed in the interior of the limit ring, and the left and right ends of the limit disk are respectively fixed with studs and grip wheels. The threads on the surface of the studs are installed with a transmission ring. The top surface of the ring is fixedly equipped with a grip rod.

Preferably, the middle portion of the transmission ring is slidably mounted inside the sliding groove, and the shapes of the two are matched.

Compared with the existing technology, the beneficial effects of this utility model are:

(1) The utility model utilizes a screw rod to drive the lifting rod to move up and down as a whole, thereby changing the height of the grip rod, thereby changing the proportional relationship of the force arm, thereby meeting the use needs of different users, and the adjustment method is simple and easy to operate.

(2) This utility model changes the relative narrowness of the grip by setting a grip wheel, so that users with different frame sizes can adjust to their own suitable angles for tension training, achieving twice the result with half the effort, thus making the overall device Practicality is further improved.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

Figure 2 is an overall schematic diagram of the training rocker arm of the present utility model;

Figure 3 is an overall schematic diagram of the lifting rod of the present utility model;

Figure 4 is a schematic diagram of the connection between the handle and the wheel of the utility model;

In the picture: 1. Base frame; 2. Main platform; 3. Pedal; 4. Protective plate; 5. Training rocker; 51. Coupling shaft; 52. Connecting seat; 53. Bottom rod; 54. Barbell plate placement rod ; 55. Installation ring; 56. Screw; 57. Lift rod; 58. Grip rod; 59. Grip wheel; 571. Transmission plate; 572. Right-angle rod; 573. Sliding groove; 574. Limit ring; 581. Transmission ring ; 591, limit plate; 592, stud.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example 1:

Referring to Figures 1 to 4, a tension back muscle training device includes: a chassis 1, a main platform 2 is fixedly installed on the top of the chassis 1, and the left and right sides of the main platform 2 are rotatably installed. There is a training rocker arm 5. The training rocker arm 5 includes a connecting shaft 51. The right end of the connecting shaft 51 is fixedly installed with a connecting seat 52. The side of the connecting seat 52 is fixed with a mounting ring 55. The mounting ring 55 A screw rod 56 is rotatably installed inside, and a lifting rod 57 is movably connected inside the connecting seat 52.

Foot pedals 3 are fixedly installed on the left and right sides of the bottom end of the main platform 2, a protective plate 4 is fixedly installed on the top of the base frame 1, and a bottom rod 53 is fixedly installed on the side of the connecting seat 52. A barbell plate placement rod 54 is fixedly installed at the bottom end of 53. A transmission plate 571 is fixedly installed on the side of the lifting rod 57. The transmission plate 571 is threadedly installed on the surface of the screw rod 56. The top of the lifting rod 57 is fixedly installed with a Right-angle rod 572, the surface of the right-angle rod 572 is provided with a sliding groove 573, and a limit ring 574 is fixedly installed on the right side of the top of the right-angle rod 572.

Specifically, the foot pedal 3 is used to support the bottom of the user, and the protective plate 4 is used to ensure the impact resistance of the training rocker 5 when it falls as a whole, thereby achieving a protective effect. In addition, the screw 56 is used to cooperate with the transmission plate 571 to make the lifting rod 57 The height can be changed, thereby changing the proportional relationship between the height of the grip bar 58 to the connecting seat 52 and the height of the connecting seat 52 to the barbell placement bar 54, so as to adapt to the use of different groups of people, and the installation ring 55 is used to realize the purpose of in-situ rotation of the screw rod 56.

It can be seen from the above that the user adjusts the height position of the grip rod 58 according to his or her own conditions, and rotates the screw rod 56 to drive the transmission plate 571 to move up and down, so that the lifting rod 57 as a whole drives the grip rod 58 to move up and down in height, and gradually moves to the appropriate position. That’s it.

Example 2:

Referring to Figures 3 and 4, a limiting plate 591 is rotatably installed inside the limiting ring 574. The left and right ends of the limiting plate 591 are respectively fixed with studs 592 and grip wheels 59. The studs The surface of 592 is threaded with a transmission ring 581, and the top surface of the transmission ring 581 is fixed with a handle 58. The middle part of the transmission ring 581 is slidably installed inside the sliding groove 573, and the shapes of the two match.

Specifically, the limiting plate 591 is used to rotate inside the limiting ring 574 to realize its overall in-situ rotation, and the inside of the transmission ring 581 is slid inside the sliding groove 573 and the shapes of the two are matched, so that the studs 592 achieves the purpose of limiting when driving the transmission ring 581 to move, preventing the two from rotational deviation.

It can be seen from the above that the user can adjust the appropriate distance between the two grip bars 58 according to his or her own width, rotate the grip wheel 59 to drive the stud 592 to rotate, and drive the transmission ring 581 to move through the thread transmission, and then move it to the appropriate position. Then the user holds the grip bar 58 and places a barbell plate of appropriate weight on the barbell plate placement bar 54 to perform tension training of the back muscles.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A tension dorsum muscle trainer comprising: the novel training device comprises a base frame (1), wherein a main table (2) is fixedly arranged at the top end of the base frame (1), training rocker arms (5) are rotatably arranged at the left side and the right side of the main table (2), each training rocker arm (5) comprises a connecting shaft (51), a connecting seat (52) is fixedly arranged at the right end of each connecting shaft (51), a mounting ring (55) is fixedly arranged on the side face of each connecting seat (52), a screw (56) is rotatably arranged in each mounting ring (55), and lifting rods (57) are movably sleeved in the connecting seats (52).

2. A dorsum muscle trainer according to claim 1, wherein: pedals (3) are fixedly arranged on the left side and the right side of the bottom end of the main table (2), and a protection plate (4) is fixedly arranged on the top end of the bottom frame (1).

3. A dorsum muscle trainer according to claim 1, wherein: the side of connecting seat (52) is fixed mounting has sill bar (53), the bottom fixed mounting of sill bar (53) has disc placing rod (54).

4. A dorsum muscle trainer according to claim 1, wherein: the side fixed mounting of lifter (57) has drive plate (571), drive plate (571) screw thread installation is on the surface of screw rod (56), the top fixed mounting of lifter (57) has right angle pole (572), sliding tray (573) have been seted up on the surface of right angle pole (572), right side fixed mounting on right angle pole (572) top has spacing collar (574).

5. The device for training the dorsum muscle under tension according to claim 4, wherein a limiting disc (591) is rotatably installed in the limiting ring (574), a stud (592) and a holding wheel (59) are fixedly installed at the left end and the right end of the limiting disc (591) respectively, a driving ring (581) is installed on the surface of the stud (592) in a threaded manner, and a holding rod (58) is fixedly installed on the top surface of the driving ring (581).

6. A dorsum manus pull trainer according to claim 5, wherein: the middle part of the transmission ring (581) is slidably arranged in the sliding groove (573), and the two are matched with each other in shape.