Training device for improving straightness in freestyle swimming

Abstract

A training device for improving straightness in freestyle swimming, comprising support frames (1), wherein a fixing frame (11) is mounted on the upper sides of the support frames (1), characterized in that a support plate (101) is mounted on the upper side of the fixing frame (11), a connecting plate (102) is fixedly mounted on the outer wall of the support plate (101), a limiting block (103) is fixedly mounted on the upper side of the connecting plate (102), fixing plates (104) are fixedly mounted on the upper side of the connecting plate (102), elastic elements (105) are mounted on the sides of the fixing plates (104) facing the limiting block (103), and curved clamping plates (106) are mounted on the ends of the elastic elements (105) facing away from the fixing plates (104).

Description

Technical area

[0001] The present utility model relates to the technical field of swimming training equipment, in particular a training device for improving straightness in freestyle swimming. State of the art

[0002] Freestyle swimming training equipment consists of specialized gear that helps swimmers improve their arm stroke efficiency, body control, and race-related strength. Such equipment is widely used in professional training and amateur practice settings and is an important tool for optimizing freestyle swimming technique and enhancing athletic performance.

[0003] When training individuals to improve their straightness in freestyle swimming, it is necessary to perform limitation training for their leg and arm movements in order to improve their swimming style and achieve the effect of straight-line movement in the water.

[0004] Common training devices for improving freestyle swimming straightness generally rely on a design where the swimmer grips a pull bar and pulls a sliding board along ropes. This design serves to train the swimmer's arm movements. However, such devices lack a support structure for the swimmer's legs. This can easily lead to irregular leg movements and thus negatively impact the stability of a straight swimming posture in freestyle. For this reason, there is an urgent need for a training device specifically designed to improve straightness in freestyle swimming. Content of the utility model

[0005] To overcome the aforementioned disadvantages, this utility model provides a training device for improving straightness in freestyle swimming. It aims to solve the problem that conventional training devices do not provide a boundary for the swimmer's legs and thus easily lead to irregular leg movements.

[0006] To achieve the aforementioned objective, the present utility model presents the following technical solution. A training device for improving straightness in freestyle swimming comprises support frames, with a fixing frame mounted on the upper side of the support frames. A support plate is mounted on the upper side of the fixing frame. A connecting plate is fixedly mounted on the outer wall of the support plate. A limiting block is fixedly mounted on the upper side of the connecting plate. Fixing plates are fixedly mounted on the upper side of the connecting plate. Elastic elements are mounted on the sides of the fixing plates facing the limiting block. Curved clamping plates are mounted on the ends of the elastic elements facing away from the fixing plates.

[0007] Preferably, curved openings are formed on the side of the boundary block facing the curved clamping plates, wherein two curved openings are arranged, and the two curved openings are arranged symmetrically on the outer wall of the boundary block.

[0008] Preferably, two curved clamping plates are arranged, and the two curved clamping plates are arranged symmetrically outside the boundary block.

[0009] Preferably, a sliding frame is fixedly mounted on the underside of the support plate. Sliding grooves are formed on the outer wall of the fixing frame. Sliding blocks are mounted to slide within the sliding grooves. The sides of the sliding blocks facing away from the sliding grooves are fixedly mounted on the inner wall of the sliding frame. Preferably, a connecting frame is fixedly mounted on the underside of the sliding frame, and a connecting ring is rotatably arranged on the outer surface of the connecting frame.

[0010] Preferably, mounting frames are firmly mounted on the underside of the fixing frame, and rollers are rotatably mounted in the mounting frames.

[0011] Preferably, the pull ropes are mounted so that they slide on the outer surfaces of the rollers.

[0012] Handles are firmly attached to the ends of the pull ropes, and the other ends of the pull ropes are firmly mounted on the outer surface of the connecting ring.

[0013] Preferably, two pull ropes and two pulleys are provided, and the two pull ropes and the two pulleys are arranged symmetrically on the underside of the fixing frame.

[0014] The present utility model has the following advantageous effects: 1. In the present utility model, the trainee's two thighs are placed between the two curved clamping plates and the limiting block. The elastic elements press the curved clamping plates so that they rest against the trainee's thighs. This achieves the effect of clamping and limiting the trainee's thighs, preventing the thighs from swinging along with the legs when the trainee moves their legs, which would lead to instability of the straight swimming position during freestyle swimming. 2. In the present utility model, the user can move the support plate and the sliding frame along the outer surface of the fixing frame by pulling the pull ropes. This allows the user to practice the arm swinging position using the pull ropes and to perform weight training by pulling on the support plate, thus achieving the desired effect of training both the arm swinging position and the user's arm strength. Description of the attached drawings Fig. Figure 1 is a perspective structural view of a training device for improving straightness in freestyle swimming, as proposed by the present utility model; Fig. Figure 2 is a structural view of the area of ​​a sliding frame of the training device for improving straightness in freestyle swimming, as proposed by the present utility model; Fig. Figure 3 is a structural view of the area of ​​a connecting plate of the training device for improving straightness in freestyle swimming, as proposed by the present utility model; Fig. Figure 4 is a sectional view of the area of ​​a support plate of the training device for improving straightness in freestyle swimming, as proposed by the present utility model. Legend:

[0015] 1-Support frame; 11-Fixing frame; 101-Support plate; 102-Connecting plate; 103-Limiting block; 104-Fixing plate; 105-Elastic element; 106-Curved clamping plate; 2-Curved opening; 3-Sliding frame; 31-Sliding groove; 32-Sliding block; 4-Connecting frame; 41-Connecting ring; 5-Mounting frame; 51-Roller; 6-Pulling cable; 61-Handle. Examples of implementation

[0016] The technical solutions in the embodiments of this utility model are described clearly and completely below with reference to the drawings in the description of this utility model. It is understood that the described embodiments represent only a subset of the embodiments of this utility model and not all of them. Based on the embodiments of this utility model, all other embodiments that a person skilled in the art in the field could achieve without inventive step fall within the scope of protection of this utility model.

[0017] With reference to Fig. Figures 1 to 3, an embodiment provided by the present utility model: A training device for improving straightness in freestyle swimming comprises support frames 1, wherein a fixing frame 11 is mounted on the upper sides of the support frames 1. A support plate 101 is mounted on the upper side of the fixing frame 11. A connecting plate 102 is fixedly mounted on the outer wall of the support plate 101. A limiting block 103 is fixedly mounted on the upper side of the connecting plate 102. Fixing plates 104 are fixedly mounted on the upper side of the connecting plate 102. Elastic elements 105 are mounted on the sides of the fixing plates 104 facing the limiting block 103. Curved clamping plates 106 are mounted on the ends of the elastic elements 105 facing away from the fixing plates 104.

[0018] Curved openings 2 are formed on the side of the boundary block 103 that faces the curved clamping plates 106, wherein two curved openings 2 are arranged, and the two curved openings 2 are arranged symmetrically on the outer wall of the boundary block 103.

[0019] Two curved clamping plates 106 are arranged, and the two curved clamping plates 106 are arranged symmetrically outside the boundary block 103.

[0020] In detail, two support frames 1 are placed on the floor, enabling them to stably support the fixation frame 11. The two support frames 1 are of different heights, so the fixation frame 11 is attached at an angle to the tops of the two support frames 1. The support plate 101 can slide along the outer surface of the fixation frame 11 by resting on the sliding frame 3. The connecting plate 102 is fixed to the outside of the lower side of the support plate 101, allowing the trainee's thighs to be placed on the connecting plate 102. The limiting block 103 is fixed in the middle position on the top of the connecting plate 102, and curved openings 2 are formed on both sides of the outer wall of the limiting block 103, which facilitate the trainee's thighs resting against the limiting block 103.The two fixing plates 104 are each fixedly mounted on both sides of the top of the connecting plate 102. The elastic elements 105 are fixedly mounted on the outer wall of the fixing plates 104, so that the two curved clamping plates 106 can each be mounted outside the limiting block 103 with the help of the elastic elements 105. Pressing on the two curved clamping plates 106 causes the associated elastic elements 105 to compress, thereby increasing the distance between the two curved clamping plates 106 and the limiting block 103. In this way, the trainee's thighs can be placed between the two curved clamping plates 106 and the limiting block 103. The elastic elements 105 press the curved clamping plates 106 so that they rest against the trainee's thighs, thus achieving the clamping and limiting effect on the trainee's thighs.This prevents the thighs from swinging together with the lower legs when the trainee moves their legs, which would lead to instability of the straight swimming position in freestyle swimming.

[0021] It should be noted that the elastic elements 105 are metallic coil springs. The elastic elements 105 can provide a clamping force to the curved clamping plates 106, enabling the curved clamping plates 106 to clamp around the outside of the trainee's thighs. Sponge pads are provided on the top of the support plate 101, on the outer wall of the curved clamping plates 106 facing the thighs, inside the curved openings 2 of the limiting block 103, and on the top of the connecting plate 102. These pads prevent wear and tear on the trainee's thighs caused by the support plate 101, the curved clamping plates 106, the limiting block 103, and the connecting plate 102.

[0022] With regard to the question of how the support plate 101 can slide along the outer surface of the fixing frame 11, reference is made to Fig. 4. A sliding frame 3 is fixedly mounted on the underside of the support plate 101. Sliding grooves 31 are formed on the outer wall of the fixing frame 11. Sliding blocks 32 are slidably mounted in the sliding grooves 31. The sides of the sliding blocks 32 facing away from the sliding grooves 31 are fixedly mounted on the inner wall of the sliding frame 3. In detail, the sliding frame 3 is slidably mounted on the outer surface of the fixing frame 11, and the sliding blocks 32, which are fixedly mounted on the inner wall of the sliding frame 3, can be slidably mounted in the sliding grooves 31. The support plate 101 is fixedly mounted on the top of the sliding frame 3. When the sliding frame 3 is subjected to a tensile force, it can cause the support plate 101 to move along the outer surface of the fixing frame 11.

[0023] Furthermore, with regard to the question of how a tensile force can be exerted on the sliding frame 3 in order to move the support plate 101, reference is made to Fig. 2 and Fig. 4. A connecting frame 4 is fixedly mounted on the underside of the sliding frame 3, and a connecting ring 41 is rotatably arranged on the outer surface of the connecting frame 4.

[0024] Mounting frames 5 are fixedly mounted on the underside of the fixing frame 11, and rollers 51 are rotatably mounted in the mounting frames 5.

[0025] The pull cables 6 are mounted to slide on the outer surfaces of the rollers 51. Handles 61 are fixedly connected to the ends of the pull cables 6, and the other ends of the pull cables 6 are fixedly mounted on the outer surface of the connecting ring 41.

[0026] Two pull ropes 6 and two rollers 51 are provided, and the two pull ropes 6 and the two rollers 51 are arranged symmetrically on the underside of the fixing frame 11.

[0027] The two rollers 51 are symmetrically mounted on the underside of the outer wall of the highest part of the fixing frame 11 using the two mounting frames 5. The pull ropes 6 are wound around the outer surfaces of the rollers 51, with one end connected to the handles 61 and the other end to the connecting ring 41. The connecting ring 41 is rotatably mounted on the outer surface of the connecting frame 4 on the underside of the sliding frame 3. The user lies on top of the support plate 101, extends both arms, and grasps the two handles 61, thereby causing the pull ropes 6 to slide along the outer surfaces of the rollers 51. This allows the sliding frame 3 to be moved along the outer surface of the fixing frame 11 at the other end of the pull ropes 6, thus achieving the effect of repositioning the support plate 101.

[0028] Operating principle: When the user trains freestyle swimming with the aid of the device, they lie on top of the support plate 101, extend both arms, and grasp the two handles 61. By alternately pulling the pull cords 6, which are connected to the two handles 61, they allow them to slide along the outer surfaces of the rollers 51, thus causing the pull cords 6 to move the sliding frame 3 along the outer surface of the fixing frame 11. In this way, the user can train their arm swing using the pull cords 6 and cause their body, lying on top of the support plate 101, to move. This achieves the effect of shifting the position of the support plate 101 and training the user's arm swing position. This allows the user to train their arm strength, resulting in greater explosive power in the water.

[0029] Before the trainee lies down on the top of the support plate 101 to practice arm swings, pressing the two curved clamping plates 106 compresses the associated elastic elements 105, thereby increasing the distance between the two curved clamping plates 106 and the limiting block 103. This allows the trainee's thighs to be positioned between the two curved clamping plates 106 and the limiting block 103. The elastic elements 105 press the curved clamping plates 106 so that they rest against the trainee's thighs, thus achieving the clamping and limiting effect.When the trainee pulls the resistance cords 6 to practice arm swings and cause the support plate 101 to move, the trainee's thighs are restricted and clamped by the curved clamping plates 106, so that movement is only possible by swinging the lower legs. This achieves the effect of training the trainee's straightness in freestyle swimming and prevents the thighs from swinging along with the legs when the trainee moves their legs, which would lead to instability of the straight swimming position in freestyle swimming.

[0030] Finally, it should be noted that the above merely describes the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Although the present utility model has been described in detail with reference to the preceding embodiments, a person skilled in the art may still modify the technical solutions described in the preceding embodiments or replace individual technical features with equivalent features. Any modification, equivalent replacement, improvement, etc., that is in the spirit and principle of the present utility model shall fall within the scope of protection of the present utility model.

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