Pull-up training auxiliary device

Abstract

The utility model discloses a pull-up training auxiliary equipment, including base, the inner wall of base is through displacement subassembly front and back symmetry sliding connection square rod, the inner wall of two square rod is both in array fixed provided with connecting plate, the side wall of connecting plate close to the lower end position is rotatingly connected with wheel carrier, the inner wall of wheel carrier is sliding connection with round rod, the round rod is connected with the wheel carrier. The pull-up training auxiliary equipment comprises a base, a square rod, a wheel carrier and a round rod, the square rod can be horizontally adjusted in position, the outer end of the round rod is fixedly arranged on the inner wall of the base, universal wheels are installed at the bottom of the wheel carrier, movable grooves are symmetrically formed in the base in the front-back direction, and rotating shafts are rotationally connected to the inner walls of the two movable grooves in an array mode. After the training auxiliary equipment is used, the two square rods can drive the upper ends of the wheel carriers to synchronously and horizontally move, the inner walls of the wheel carriers slide along the circumferential outer walls of the round rods, the bottoms of the universal wheels are rotated to the position below the base, and therefore the device can be conveniently moved in a labor-saving mode and stored in other places.

Description

Technical Field

[0001] The utility model belongs to the technical field of sports tools, and in particular relates to a pull-up training auxiliary device. Background Art

[0002] Pull-ups are one of the contents stipulated in the "National Student Physical Fitness Standards". However, in daily teaching, it is found that pull-ups are a weak link for students. Many students cannot complete this movement independently. The main reasons for not being able to complete it are: one is weak muscle strength, and the other is that they have not mastered the correct movement essentials. Pull-ups are a hanging strength exercise that uses one's own strength to overcome one's own weight. It requires students to have a certain grip strength, upper limb strength and latissimus dorsi muscles, and this strength must be able to overcome their own weight. In response to the existing problems, pull-up assistive devices can more efficiently improve training effects, thereby improving athletic ability.

[0003] The existing pull-up training auxiliary equipment adopts a steel structure, which is large in size and heavy in weight. A flat cart is needed to move the training auxiliary equipment. It consumes a lot of manpower to move the training auxiliary equipment on and off the flat cart, and there are safety hazards. At the same time, after placing the training auxiliary equipment on a flat ground, it is difficult to increase the ground contact area of ​​the training auxiliary equipment to enhance the stability of the training auxiliary equipment. It is challenging to ensure that it can bear the weight of the user and provide sufficient support. For this reason, we propose a pull-up training auxiliary equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a pull-up training auxiliary equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pull-up training auxiliary equipment, including a base, the inner wall of the base is symmetrically slidably connected to a square rod through a displacement assembly, the inner walls of the two square rods are both arranged with connecting plates fixed in an array, the side walls of the connecting plates are rotatably connected to a wheel frame near the lower end, the inner wall of the wheel frame is slidably connected to a round rod, and the outer end of the round rod is fixed to the inner wall of the base, a universal wheel is installed at the bottom of the wheel frame, movable grooves are symmetrically opened in the front and back of the base, the inner walls of the two movable grooves are both rotatably connected to a rotating shaft in an array, several circumferential outer walls of the rotating shafts are fixed with gears and extension rods, the outer walls of the two square rods are both fixed with racks, and several gears are respectively meshed with the two racks, and a training auxiliary assembly is provided above the base.

[0006] Preferably, abutment rods are fixedly provided on the lower surfaces of several of the extension rods near the outer ends, and the lower end surfaces of the abutment rods and the lower surface of the base are located on the same horizontal plane.

[0007] Preferably, the bottoms of the two movable grooves are provided with receiving grooves in an array, and a plurality of receiving grooves are movably sleeved on the outsides of a plurality of extension rods and a plurality of support rods.

[0008] Preferably, the displacement assembly includes a screw rod symmetrically connected to the side wall of the base for front-to-back rotation, the two square rods are respectively threadedly connected to the circumferential outer walls of the two screw rods, and guide sleeves are movably sleeved on the outer sides of the two square rods, and the guide sleeves are fixed to the inner wall of the base.

[0009] Preferably, the displacement assembly also includes a slave sprocket fixed on the circumferential outer walls of the two screw rods, the side wall of the base is rotatably connected to the main shaft, two main sprockets are fixed on the circumferential outer wall of the main shaft, the two main sprockets are respectively connected to the two slave sprockets through two chains, and a crank is fixed on the right end of the main shaft.

[0010] Preferably, the training auxiliary component includes vertical poles that are symmetrically fixed on the upper surface of the base front and back, a horizontal bar is fixed between the outer walls of the two vertical poles, double bars and reinforcing rods are fixed to the outer walls of the two vertical poles, and the lower ends of the two reinforcing rods are fixed to the top of the base, and a power-assisting lever is rotatably connected between the two reinforcing rods, and counterweight blocks and power-assisting pedals are respectively fixed at both ends of the power-assisting lever.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The pull-up training auxiliary equipment is provided with a square rod, a wheel frame, a round rod and a universal wheel whose positions can be adjusted horizontally. After the use of the training auxiliary equipment is completed, the two square rods drive the upper ends of the plurality of wheel frames to move horizontally synchronously, the inner wall of the wheel frame slides along the outer wall of the circumference of the round rod, and the bottom of the plurality of universal wheels is rotated to the bottom of the base, so that the device can be moved labor-savingly and conveniently and stored elsewhere.

[0013] (2) The pull-up training auxiliary equipment is provided with a rack, a rotating shaft, a gear, an extension rod and a support rod. When the square rod moves horizontally and the lower surface of the base touches the ground, the movement of the rack drives the rotation shaft and the gear to rotate until the extension rod is rotated to a position perpendicular to the outer wall of the base, and the lower ends of several support rods touch the ground synchronously, thereby improving the stability of the training auxiliary equipment when placed on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a top-sectional stereoscopic view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the extension rod and the support rod of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the wheel frame, round rod and universal wheel of the utility model;

[0018] Figure 5 For the utility model Figure 2 A magnified view of the structure at center.

[0019] In the figure:

[0020] 1. Base; 2. Square rod; 3. Connecting plate; 4. Wheel frame; 5. Round rod; 6. Universal wheel; 7. Movable slot; 8. Rack; 9. Rotating shaft; 10. Gear; 11. Extension rod; 12. Retaining rod; 13. Storage slot; 14. Screw rod; 15. Sprocket; 16. Main shaft; 17. Main sprocket; 18. Chain; 19. Crank; 20. Vertical pole; 21. Horizontal bar; 22. Double bars; 23. Reinforcement rod; 24. Power lever; 25. Counterweight; 26. Power pedal; 27. Guide sleeve. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 5 The utility model provides a pull-up training auxiliary equipment, including a base 1, the inner wall of the base 1 is symmetrically slidably connected with a square rod 2 through a displacement component, the inner walls of the two square rods 2 are both array-fixed with connecting plates 3, the side walls of the connecting plates 3 are rotatably connected with a wheel frame 4 near the lower end, the inner wall of the wheel frame 4 is slidably connected with a round rod 5, and the outer end of the round rod 5 is fixed to the inner wall of the base 1, and a universal wheel 6 is installed at the bottom of the wheel frame 4, and movable grooves 7 are symmetrically opened front and back inside the base 1, and the inner walls of the two movable grooves 7 are both array-rotatably connected with rotating shafts 9, and the circumferential outer walls of the rotating shafts 9 are both fixed with gears 10 and extension rods 11, the outer walls of the two square rods 2 are both fixed with racks 8, and the plurality of gears 10 are respectively meshed with the two racks 8, and a training auxiliary component is arranged above the base 1.

[0023] In this embodiment, preferably, a support rod 12 is fixedly provided on the lower surfaces of several extension rods 11 near the outer ends, and the lower end surfaces of the support rods 12 are located on the same horizontal plane as the lower surface of the base 1. When the lower surface of the base 1 touches the ground, the lower end surfaces of several support rods 12 touch the ground synchronously, thereby improving the stability of the training auxiliary equipment when placed on the ground.

[0024] In this embodiment, preferably, storage grooves 13 are arranged in an array at the bottom of the two movable grooves 7, and a plurality of storage grooves 13 are movably mounted on the outside of a plurality of extension rods 11 and a plurality of support rods 12. When the training auxiliary equipment needs to be moved, the extension rods 11 and the support rods 12 are both stored in the storage grooves 13, thereby reducing the space occupied by the training auxiliary equipment and improving the passability of the training auxiliary equipment.

[0025] In this embodiment, preferably, the displacement assembly includes a screw rod 14 symmetrically connected to the side wall of the base 1 for front and rear rotation, the two square rods 2 are respectively threadedly connected to the circumferential outer walls of the two screw rods 14, the outer sides of the two square rods 2 are movably sleeved with a guide sleeve 27, and the guide sleeve 27 is fixed to the inner wall of the base 1, the displacement assembly also includes a slave sprocket 15 fixed to the circumferential outer wall of the two screw rods 14, the side wall of the base 1 is rotatably connected with a main shaft 16, the circumferential outer wall of the main shaft 16 is fixed with two main sprockets 17, the two main sprockets 17 are respectively connected to the two slave sprockets 15 through two chains 18, a crank 19 is fixed at the right end of the main shaft 16, the crank 19 is held and the main shaft 16 is turned, the main shaft 16 drives the two main sprockets 17 to rotate synchronously, the main sprocket 17 drives the slave sprocket 15 to rotate through the chain 18, and then the two screw rods 14 rotate synchronously, and the threaded connection between the screw rod 14 and the square rod 2 makes the two square rods 2 move horizontally synchronously under the guidance of the guide sleeve 27.

[0026] In this embodiment, preferably, the training auxiliary component includes vertical poles 20 symmetrically fixed on the upper surface of the base 1 front and back, a horizontal bar 21 is fixed between the outer walls of the two vertical poles 20, parallel bars 22 and reinforcing rods 23 are fixed on the outer walls of the two vertical poles 20, and the lower ends of the two reinforcing rods 23 are fixed to the top of the base 1, and a power-assisting lever 24 is rotatably connected between the two reinforcing rods 23, and a counterweight block 25 and a power-assisting foot pedal 26 are respectively fixed at both ends of the power-assisting lever 24. After the student steps on the power-assisting foot pedal 26 with both feet, the body is raised, which is convenient for using both hands to grasp the horizontal bar 21 to perform pull-up training.

[0027] The working principle and use process of the utility model are as follows: when the device is used, after moving the device to the predetermined training location, the crank 19 is held and the main shaft 16 is turned, so that the two square rods 2 are synchronously moved horizontally in the direction away from the crank 19 under the guidance of the guide sleeve 27, and the two square rods 2 drive the upper ends of the plurality of wheel frames 4 to move horizontally synchronously, so that the inner wall of the wheel frame 4 slides along the outer wall of the circumference of the round rod 5, driving the universal wheel 6 to flip, until the universal wheel 6 is flipped to the upper side of the lower surface of the base 1, so that the lower surface of the base 1 touches the ground. In this process, the two square rods 2 respectively drive the two racks 8 to rotate, and through the meshing transmission of the plurality of gears 10 and the two racks 8, the plurality of rotating shafts 9 respectively drive the plurality of extensions 10 to rotate. The extension rod 11 rotates to rotate the extension rod 11 and the support rod 12 out of the storage groove 13. When the lower surface of the base 1 touches the ground, the extension rod 11 rotates to a position perpendicular to the outer wall of the base 1, and the lower ends of the plurality of support rods 12 touch the ground synchronously, thereby improving the stability of the training auxiliary equipment when placed on the ground. Students can use the device to perform pull-up training. After the training, the crank 19 is twisted in the reverse direction to rotate the bottom of the plurality of universal wheels 6 to the bottom of the base 1 again, so that the device can be moved labor-savingly and conveniently and stored elsewhere. The extension rod 11 and the support rod 12 are both stored in the storage groove 13, thereby reducing the space occupied by the training auxiliary equipment and improving the passability of the training auxiliary equipment during movement.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pull-up training auxiliary device, comprising a base (1), characterized in that: The inner wall of the base (1) is symmetrically slidably connected to a square rod (2) through a displacement assembly. The inner walls of the two square rods (2) are both fixedly provided with connecting plates (3) in an array. The side wall of the connecting plate (3) is rotatably connected to a wheel frame (4) near the lower end. The inner wall of the wheel frame (4) is slidably connected to a round rod (5), and the outer end of the round rod (5) is fixedly provided to the inner wall of the base (1). A universal wheel (6) is installed at the bottom of the wheel frame (4). The base (1) is symmetrically provided with movable grooves (7) in an array. The inner walls of the two movable grooves (7) are both rotatably connected to rotating shafts (9). Gears (10) and extension rods (11) are fixedly provided on the circumferential outer walls of the rotating shafts (9). Racks (8) are fixedly provided on the outer walls of the two square rods (2), and the plurality of gears (10) are respectively meshed with the two racks (8). A training auxiliary component is provided above the base (1).

2. A pull-up training auxiliary equipment according to claim 1, characterized in that: A plurality of extension rods (11) are fixedly provided with abutment rods (12) at positions near the outer ends of the lower surfaces thereof, and the lower end surfaces of the abutment rods (12) and the lower surface of the base (1) are located on the same horizontal plane.

3. A pull-up training auxiliary equipment according to claim 2, characterized in that: The bottoms of the two movable grooves (7) are both provided with receiving grooves (13) in an array, and a plurality of receiving grooves (13) are respectively and movably sleeved on the outsides of a plurality of extension rods (11) and a plurality of support rods (12).

4. The pull-up training auxiliary equipment according to claim 1, characterized in that: The displacement assembly comprises a screw rod (14) rotatably connected to the side wall of the base (1) in a front-rear symmetrical manner, the two square rods (2) being respectively threadedly connected to the circumferential outer walls of the two screw rods (14), the outer sides of the two square rods (2) being movably sleeved with a guide sleeve (27), and the guide sleeve (27) being fixed to the inner wall of the base (1).

5. A pull-up training auxiliary equipment according to claim 4, characterized in that: The displacement assembly also includes a slave sprocket (15) fixedly mounted on the circumferential outer walls of the two screw rods (14); the side wall of the base (1) is rotatably connected to a main shaft (16); two main sprockets (17) are fixedly mounted on the circumferential outer wall of the main shaft (16); the two main sprockets (17) are respectively connected to the two slave sprockets (15) through two chains (18); and a crank (19) is fixedly mounted on the right end of the main shaft (16).

6. The pull-up training auxiliary equipment according to claim 1, characterized in that: The training auxiliary component comprises vertical poles (20) symmetrically fixed on the upper surface of the base (1) in front and back directions, a horizontal bar (21) fixedly arranged between the outer walls of the two vertical poles (20), parallel bars (22) and a reinforcing rod (23) fixedly arranged on the outer walls of the two vertical poles (20), and the lower ends of the two reinforcing rods (23) are fixedly arranged on the top of the base (1), a power-assisting lever (24) is rotatably connected between the two reinforcing rods (23), and a counterweight block (25) and a power-assisting foot pedal (26) are respectively fixedly arranged at both ends of the power-assisting lever (24).

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