Athletics leg training auxiliary device

Abstract

The utility model discloses an athletic leg training auxiliary device which comprises a training plate and a base plate connected with the training plate in a sliding mode, a locking structure is arranged between the training plate and the base plate in a matched mode, and an adjustable backrest plate is arranged on one side of the base plate. A pedal is slidably connected to the top of the training plate in the length direction of the training plate, a sliding groove matched with the pedal and used for containing the pedal to slide is formed in the training plate, an adjusting plate is further slidably connected into the sliding groove, a spring is arranged between the adjusting plate and the pedal, and a spring open groove used for replacing the spring is further formed in the top of the training plate and communicated with the sliding groove. Compared with the prior art, the auxiliary device for leg training in the track and field has the advantages that leg training in the track and field is facilitated, and the auxiliary device can be adjusted according to the height of a user and the training intensity of physical fitness.

Description

Technical Field

[0001] The utility model relates to the technical field of track and field training, in particular to a track and field leg training auxiliary device. Background Art

[0002] Track and field refers to a general term for all-around sports consisting of walking, running, jumping, throwing and other sports, as well as some of the sports that are composed of some of the events. Athletes who participate in track and field sports need to undergo a lot of physical training, and scientific physical training can maximize the athletes' performance. At the same time, reasonable training can improve physical fitness and greatly reduce the physical injuries of athletes during exercise. It is of great significance to the physical and mental health of athletes.

[0003] Existing track and field training mostly trains the athletes' legs, but the equipment is mostly fixed and cannot be adjusted according to the user. Due to the different heights and physical fitness of users, the training effect is easily poor. Utility Model Content

[0004] (1) Problems to be solved

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a track and field leg training auxiliary device which is convenient for track and field leg training and can be adjusted according to the height of the user and the training intensity according to the physical fitness.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the present invention provides a technical solution as follows: an auxiliary device for leg training in track and field, comprising a training board and a base board slidably connected to the training board, wherein a locking structure is provided between the training board and the base board, and an adjustable backrest board is provided on one side of the base board;

[0008] The top of the training board is slidably connected to a pedal along its length direction, and a sliding groove is provided in the training board to accommodate the pedal's sliding. An adjustment plate is also slidably connected in the sliding groove, and a spring is provided between the adjustment plate and the pedal. The top of the training board is also connected to the sliding groove and is provided with a spring slot for replacing the spring.

[0009] As an improvement, the base plate is connected to a T-shaped plate on the side facing the training plate, and a T-shaped groove is provided in the training plate to accommodate the T-shaped plate and allow it to slide.

[0010] As an improvement, both ends of the T-shaped plate head are provided with axial holes;

[0011] The top of the training board is provided with a plurality of pin shaft grooves corresponding to the shaft holes along the length direction of the T-shaped groove. The pin shaft grooves are arranged through the top wall of the T-shaped groove, and pin shafts are arranged in the pin shaft grooves.

[0012] As an improvement, the cross-section of the slide is T-shaped, and the bottom end of the pedal extends into the slide and is provided with a guide block that matches its shape. A transmission screw is rotatably connected between the two walls of the slide. One end of the transmission screw passes through the side wall of the training board and is connected to a knob. The guide block is slidably connected to the transmission screw, and the adjustment plate and the transmission screw are threadedly transmitted.

[0013] As an improvement, the top and bottom of the adjustment plate are both connected with a ball, and the inner wall of the slide groove is provided with a sliding limit groove along its length direction to cooperate with the ball.

[0014] As an improvement, the bottom wall of the guide block is connected with a second ball, and the bottom wall of the slide groove is provided with a second sliding limit groove along its length direction to cooperate with the second ball.

[0015] As an improvement, a soft cushion is also connected to the base plate, and a rotation groove is provided at one end of the base plate to cooperate with the adjustable backrest plate. The adjustable backrest plate is rotatably connected in the rotation groove, and a threaded hole is provided on the back side of the rotation groove. A limit bolt is threadedly connected in the threaded hole.

[0016] (3) Beneficial effects

[0017] The advantages of the present invention over the prior art are as follows: in the present application, by making structural improvements to the training plate and the base plate, the adjustable back plate can be adjusted according to the posture of use, and the spring slots in which the springs can be replaced can be used to replace springs of different strengths and cooperate with the adjustment plate to adjust the spacing to adaptively adjust the training intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a structural diagram of a track and field leg training auxiliary device.

[0019] Figure 2 The present invention is a structural schematic diagram of a track and field leg training auxiliary device from a second perspective.

[0020] Figure 3 The present invention is a structural schematic diagram of a cross-section of a track and field leg training auxiliary device.

[0021] Figure 4 The present invention is a second perspective structural schematic diagram of a cross-section of a track and field leg training auxiliary device.

[0022] Figure 5 The present invention is a third-perspective structural diagram of a cross-section of a track and field leg training auxiliary device.

[0023] As shown in the figure: 1. Training board; 2. Base plate; 3. Adjustable backrest plate; 4. Footrest; 5. Slide groove; 6. Adjustment plate; 7. Spring; 8. Spring slot; 9. T-shaped plate; 10. T-shaped slot; 11. Axis hole; 12. Pin slot; 13. Pin; 14. Guide block; 15. Transmission screw; 16. Knob; 17. Ball bearing 1; 18. Sliding limit slot 1; 19. Ball bearing 2; 20. Limit slot 2; 21. Rotating slot; 22. Limit bolt. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0025] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art in the technical field to which the present invention pertains. The terminology used herein in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0029] Please refer to the attached Figure 1-5 , an auxiliary device for track and field leg training, comprising a training plate 1 and a base plate 2 slidably connected to the training plate 1.

[0030] In order to facilitate the use, a locking structure is provided between the training board 1 and the base board 2, specifically, a T-shaped plate 9 is connected to the base board 2 on the side facing the training board 1, and a T-shaped slot 10 is provided in the training board 1 to accommodate the T-shaped plate 9 for sliding, and shaft holes 11 are provided at both ends of the head of the T-shaped plate 9; a plurality of pin grooves 12 corresponding to the shaft holes 11 are provided on the top of the training board 1 along the length direction of the T-shaped slot 10, and the pin groove 12 is arranged through the top wall of the T-shaped slot 10, and a pin 13 is provided in the pin groove 12. The position of the T-shaped plate 9 can be controlled by the pin 3, thereby controlling the use of people of different heights.

[0031] An adjustable backrest plate 3 is provided on one side of the base plate 2, and a foot pedal 4 is slidably connected to the top of the training board 1 along its length direction. A slide groove 5 is provided in the training board 1 to accommodate the foot pedal 4 for sliding. An adjustment plate 6 is also slidably connected in the slide groove 5. A spring 7 is provided between the adjustment plate 6 and the foot pedal 4. The top of the training board 1 is also connected to the slide groove 5 and is provided with a spring slot 8 for replacing the spring 7.

[0032] During specific use, the cross-section of the slide 5 is T-shaped, and the bottom end of the pedal 4 extends into the slide 5 and is provided with a guide block 14 that is matched with its shape. A transmission screw 15 is rotatably connected between the two walls in the slide 5. One end of the transmission screw 15 passes through the side wall of the training board 1 and is connected to a knob 16. The guide block 14 and the transmission screw 15 are slidably connected, and the adjustment plate 6 and the transmission screw 15 are threadedly transmitted. By turning the knob 16, the screw 15 is controlled to drive the adjustment plate 6, thereby adjusting the stroke, compressing the spring, and increasing the resistance to use.

[0033] The top and bottom of the adjustment plate 6 are both connected with ball roller 17, and the inner wall of the slide groove 5 is provided with a sliding limit groove 18 along its length direction to cooperate with ball roller 17. The bottom wall of the guide block 14 is connected with ball roller 19, and the inner bottom wall of the slide groove 5 is provided with a sliding limit groove 20 along its length direction to cooperate with ball roller 19. The sliding effect is increased by the cooperation between roller 17 and ball roller 19.

[0034] A soft cushion is also connected to the base plate 2. A rotation groove 21 is provided at one end of the base plate 2 to cooperate with the adjustable backrest plate 3. The adjustable backrest plate 3 is rotatably connected in the rotation groove 21. A threaded hole is provided on the back side of the rotation groove 21. A limit bolt 22 is threadedly connected in the threaded hole. The inclination of the adjustable backrest plate 3 is controlled by twisting the limit bolt 22.

[0035] The arrangement of the spring slot 8 can facilitate the replacement of the spring. One end of the spring is inserted into the slide groove 5 to bend it and then the spring is fed in.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0038] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A track and field leg training auxiliary device, characterized by: The invention comprises a training board (1) and a base board (2) slidably connected to the training board (1); a locking structure is provided between the training board (1) and the base board (2); and an adjustable backrest board (3) is provided on one side of the base board (2); The top of the training board (1) is slidably connected to a pedal (4) along its length direction; a slide groove (5) for accommodating the sliding of the pedal (4) is provided in the training board (1); an adjustment plate (6) is slidably connected in the slide groove (5); a spring (7) is provided between the adjustment plate (6) and the pedal (4); and a spring slot (8) for replacing the spring (7) is provided at the top of the training board (1) in communication with the slide groove (5).

2. The track and field leg training auxiliary device according to claim 1, characterized in that: The base plate (2) is connected to a T-shaped plate (9) on one side facing the training plate (1), and a T-shaped groove (10) for sliding is provided in the training plate (1) to match the T-shaped plate (9).

3. The track and field leg training auxiliary device according to claim 2, characterized in that: Both ends of the head of the T-shaped plate (9) are provided with axial holes (11); The top of the training board (1) is provided with a plurality of pin shaft grooves (12) corresponding to the shaft holes (11) along the length direction of the T-shaped groove (10). The pin shaft grooves (12) are arranged through the top wall of the T-shaped groove (10), and pin shafts (13) are arranged in the pin shaft grooves (12).

4. The track and field leg training auxiliary device according to claim 1, characterized in that: The cross section of the slide (5) is T-shaped. The bottom end of the pedal (4) extends into the slide (5) and is provided with a guide block (14) matched with the shape thereof. A transmission screw (15) is rotatably connected between the two walls of the slide (5). One end of the transmission screw (15) passes through the side wall of the training board (1) and is connected to a knob (16). The guide block (14) and the transmission screw (15) are slidably sleeved, and the adjustment plate (6) and the transmission screw (15) are threadedly driven.

5. The track and field leg training auxiliary device according to claim 4, characterized in that: The top and bottom of the adjustment plate (6) are both connected with a ball (17), and the inner wall of the slide groove (5) is provided with a sliding limit groove (18) along its length direction to match the ball (17).

6. The track and field leg training auxiliary device according to claim 4, characterized in that: The bottom wall of the guide block (14) is connected with a second ball bearing (19), and the inner bottom wall of the slide groove (5) is provided with a second sliding limit groove (20) along its length direction to match the second ball bearing (19).

7. The track and field leg training auxiliary device according to claim 4, characterized in that: The base plate (2) is also connected with a soft cushion. One end of the base plate (2) is provided with a rotation groove (21) to cooperate with the adjustable backrest plate (3). The adjustable backrest plate (3) is rotatably connected in the rotation groove (21). A threaded hole is provided on the back side of the rotation groove (21). A limit bolt (22) is threadedly connected in the threaded hole.

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