A height-adjustable high-jump training device

Abstract

The utility model discloses a kind of track and field jumping training height fine adjustment touch height device, it is related to track and field training technical field, including support shell, the top of support shell is provided with installation port, and the inner wall of installation port is installed with support frame, the inner wall of support frame is inserted with telescopic column, lifting assembly for adjusting the height of telescopic column is arranged on support frame, the top of both sides of telescopic column is hinged with support rod, and telescopic column is provided with for adjusting the unfolding closing assembly of the position of two support rods, the bottom of support rod is provided with equidistance distribution's spherical groove, and the inner wall of spherical groove is all clamped with universal ball, the utility model can satisfy the individualized demand of different trainer to touch height height, realize the fine adjustment of training height, also make the whole device have good shrinkage performance, reduce occupied space, convenient to use, increase the use flexibility of device.

Description

Technical Field

[0001] This utility model relates to the field of track and field training technology, and in particular to a device for finely adjusting the height of track and field jump training. Background Technology

[0002] The high jump is a track and field event and a fundamental training exercise in high jump training. Its purpose is to improve athletes' jumping ability and explosive power, enabling them to perform jumps at a certain height. A high jump reach device is a piece of sports equipment used to measure an athlete's ability to reach a certain height after taking off; it can accurately and objectively determine how high each person can reach.

[0003] A search revealed that utility model patent CN214019028U discloses an athletics training high jump device, including a high jump device body. A base is fixedly connected to the lower side of the high jump device body, and multiple reinforcing ribs are fixedly connected between the base and the high jump device body. A control groove and four placement slots are provided on the lower side of the base. Pullers are installed inside the placement slots, and a control mechanism for controlling the movement of the pulleys is provided inside the control grooves. This utility model has a reasonable structural design. When moving the high jump device, the pulleys allow workers to push it without lifting it, reducing their workload and facilitating movement of the device according to training needs. Furthermore, the fixing blocks secure the base to the grass, effectively preventing the high jump device body from tipping over.

[0004] Based on the aforementioned patents, the existing technology has the following shortcomings: the height of the existing vertical jump device is fixed, which makes it difficult to meet the personalized and refined training needs of athletes. More importantly, the vertical jump device is in a fixed state and does not have good retractability, which makes it occupy a lot of space when stored and is not conducive to use. Therefore, it is urgent to design a vertical jump device with adjustable height for track and field jumping training to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for finely adjusting the height of jumps in track and field training. Its advantages include improved retractability, reduced space occupation, ease of use, and increased flexibility in application.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adjustable height reach device for track and field jumping training includes a support shell with an installation opening at the top. A support frame is installed on the inner wall of the installation opening, and a telescopic column is inserted into the inner wall of the support frame. A lifting component for adjusting the height of the telescopic column is provided on the support frame. Support rods are hinged to the top of both sides of the telescopic column, and an opening and closing component for adjusting the position of the two support rods is provided on the telescopic column. The bottom of the support rod has equidistant spherical grooves, and universal balls are engaged with the inner walls of the spherical grooves. A hanging column is fixed to the bottom of each universal ball, and a hollow collision ball is fixed to the bottom of each hanging column. A slot communicating with the spherical grooves is provided in the middle of the bottom of the support rod.

[0008] The above technical solutions allow for flexible adjustment of the position of the collision ball, resulting in better retractability of the entire device, reduced space occupation, ease of use, and increased flexibility in its application.

[0009] The present invention is further configured such that the unfolding and closing assembly includes an installation groove opened at the top of the telescopic column, and an electric push rod is fixedly installed on the inner wall of the installation groove. A movable groove is opened on the telescopic column, and a lifting seat inserted into the movable groove is fixedly installed at the piston end of the electric push rod. The two ends of the lifting seat are respectively hinged to the bottom of two support rods with traction rods.

[0010] The above technical solutions facilitate the unfolding and closing of the support rod.

[0011] The present invention is further provided that a top cover for protecting the electric push rod is fixedly installed on the top of the telescopic column.

[0012] The present invention is further provided that a scale groove is provided on one side of the telescopic column, and a scale strip is provided on the inner wall of the scale groove.

[0013] The above technical solutions allow for precise observation of the adjusted reach height.

[0014] The present invention is further configured such that a protective ball sleeve is provided on the outer wall of the collision ball, and a protective tube sleeve is provided on the outer wall of the hanging column. The protective tube sleeve is fixed to the protective ball sleeve. Metal pellets are placed inside the collision ball, and a sound transmission hole is provided through the middle position of both the collision ball and the protective ball sleeve.

[0015] The above technical solutions aim to prevent hand injuries to trainees and generate sound through the collision between the metal pellet and the inner wall of the impact ball, providing feedback on whether the trainee has reached the target height and helping them better assess their training progress.

[0016] The present invention is further configured such that the lifting assembly includes a mounting base fixed to the top of the inner wall of the support frame, and a through opening for the mounting base to pass through on the telescopic column. A mounting hole is provided at the middle position of the mounting base and at the middle position of the bottom of the support frame. A threaded column is rotatably connected to the inner wall of the mounting hole through a bearing. A threaded groove adapted to the outer wall of the threaded column is provided at the middle position of the bottom of the telescopic column. A forward and reverse motor is fixedly installed on one side of the bottom of the support frame, and a meshing bevel gear is fixedly installed on the output shaft of the forward and reverse motor and the bottom of the outer wall of the threaded column.

[0017] The above technical solutions enable the adjustment of the telescopic column height, thus meeting the personalized needs of different trainees for reach and allowing for fine-tuning of the training height.

[0018] The present invention is further configured such that a plurality of guide posts are installed on the inner wall of the support shell, and a movable plate is sleeved on the guide posts. A support ring is fixed on the outer wall of each guide post. A spring is fixedly installed at the bottom of each support ring and the top of each movable plate. A universal wheel is fixed at each of the four bottom corners of the movable plate. An inlet and outlet for the universal wheel to move are opened at each of the four bottom corners of the support shell. A pressing post for pressing the movable plate is fixed at each of the four bottom corners of the telescopic post. A through hole for the pressing post to pass through is opened at each of the four bottom corners of the support frame.

[0019] The above technical solutions achieve both portability and operational stability for the entire device.

[0020] The present invention is further configured such that a controller is fixedly installed on one side of the top of the support shell, and a battery is installed on the inner wall of the support shell. The controller, battery, electric push rod and forward and reverse motor are electrically connected.

[0021] The above technical solutions facilitate the integrated control of the electric push rod and the forward and reverse motors, making it convenient for trainees to operate the device.

[0022] The beneficial effects of this utility model are as follows:

[0023] 1. This utility model, through the setting of the lifting component, can drive the threaded column to rotate under the action of the forward and reverse motor. The height of the telescopic column can be adjusted by using the thread engagement. In addition, the scale strip on one side of the telescopic column makes it easy to accurately grasp the adjusted height, which can meet the personalized needs of different trainees for the reach height and realize the fine adjustment of the training height.

[0024] 2. This utility model, through the set unfolding and closing components, uses an electric push rod to push the lifting seat to rise and fall in the movable slot, and in conjunction with the traction rod to drive the support rod to unfold or close, can flexibly adjust the position of the collision ball, so that the whole device has good shrinkage performance, reduces the space occupied, is easy to use, and increases the flexibility of the device. Furthermore, a protective ball sleeve is set on the outer wall of the collision ball and a protective tube sleeve is designed on the outer wall of the hanging column, which can protect the collision process and avoid injury to the trainee's hands.

[0025] 3. This utility model, by placing a metal pellet inside the collision ball, and having a sound transmission hole through the middle of both the collision ball and the protective ball sleeve, allows the metal pellet to produce sound when the trainee touches the collision ball, which can serve as feedback on whether the trainee has reached the target height, helping the trainee to better judge their training progress.

[0026] 4. This utility model allows the telescopic column to descend and press against the movable plate when the device is not in use, so that the casters can extend to facilitate the movement of the device. When in use, the telescopic column rises and the casters retract under the reset action of the spring, making the device more stable and taking into account both the ease of movement and the stability of use. Attached Figure Description

[0027] Figure 1 This is a perspective view of a track and field jump training height finely adjustable reach device proposed in this utility model;

[0028] Figure 2 This is a three-dimensional sectional view of an adjustable height reach device for track and field jump training proposed in this utility model.

[0029] Figure 3 This is a schematic diagram of the slot and spherical groove structure of a track and field jump training height finely adjustable reach device proposed in this utility model;

[0030] Figure 4 This is a schematic diagram of the forward and reverse motor and scale bar structure of an adjustable height reach device for track and field jump training proposed in this utility model;

[0031] Figure 5 This is a cross-sectional view of the support shell of a track and field jump training height-adjustable reach device proposed in this utility model.

[0032] Figure 6 This invention presents a diagram showing the bending state of the support rod of a track and field jump training height-adjustable reach device.

[0033] In the diagram: 1. Support shell; 2. Support frame; 3. Telescopic column; 4. Traction rod; 5. Protective ball sleeve; 6. Protective tube sleeve; 7. Support rod; 8. Hanging column; 9. Top cover; 10. Controller; 11. Sound transmission hole; 12. Mounting base; 13. Threaded column; 14. Guide column; 15. Support ring; 16. Spring; 17. Movable plate; 18. Casters; 19. Movable groove; 20. Lifting seat; 21. Collision ball; 22. Universal ball; 23. Electric push rod; 24. Slot; 25. Metal shot; 26. Spherical groove; 27. Through port; 28. Forward and reverse motor; 29. ​​Extrusion column; 30. Bevel gear; 31. Scale strip; 32. Mounting port; 33. Battery; 34. Inlet and outlet. Detailed Implementation

[0034] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0035] Reference Figures 1-6This utility model provides a height-adjustable jump training device for track and field, including a support shell 1. The top of the support shell 1 has an installation opening 32, and a support frame 2 is installed on the inner wall of the installation opening 32. A telescopic column 3 is inserted into the inner wall of the support frame 2. A lifting assembly for adjusting the height of the telescopic column 3 is provided on the support frame 2. The lifting assembly includes a mounting seat 12 fixed to the top of the inner wall of the support frame 2, and a through-hole 27 for the mounting seat 12 to pass through on the telescopic column 3. An installation hole is formed at the middle position of the mounting seat 12 and the middle position of the bottom of the support frame 2. A threaded column 13 is rotatably connected to the inner wall of the installation hole via a bearing. The telescopic column 3 has a threaded groove at the bottom center that matches the outer wall of the threaded column 13. A forward and reverse motor 28 is fixedly installed on one side of the bottom of the support frame 2, and bevel gears 30 that mesh with each other are fixedly installed on the output shaft of the forward and reverse motor 28 and the bottom of the outer wall of the threaded column 13. Support rods 7 are hinged to the top of both sides of the telescopic column 3, and the telescopic column 3 is provided with an unfolding and closing assembly for adjusting the position of the two support rods 7. The unfolding and closing assembly includes a mounting groove on the top of the telescopic column 3, and an electric push rod 23 is fixedly installed on the inner wall of the mounting groove. The telescopic column 3 has a movable groove 19, and the electric push rod 23 is movable. A lifting seat 20 is fixedly installed at the end of the plug and inserted into the movable slot 19. Both ends of the lifting seat 20 are hinged to the bottom of two support rods 7 with traction rods 4. The bottom of the support rods 7 has equidistantly distributed spherical grooves 26, and the inner walls of each spherical groove 26 are fitted with universal balls 22. Each universal ball 22 has a hanging column 8 fixed to its bottom, and each hanging column 8 has a hollow collision ball 21 fixed to its bottom. There are ten hanging columns 8 and ten collision balls 21 in total. A slot 24 communicating with the spherical grooves 26 is opened at the middle of the bottom of the support rod 7. The height of the multiple collision balls 21 decreases progressively, and the height of two adjacent collision balls 21 is... The collision balls 21, located on both sides of the device, are staggered and evenly distributed with a difference of 2 cm. Under the action of the forward and reverse motor 28, the threaded column 13 can be rotated. The height of the telescopic column 3 can be adjusted by using the threaded engagement, which can meet the personalized needs of different trainees for the height of the reach and achieve fine adjustment of the training height. The electric push rod 23 is used to push the lifting seat 20 to rise and fall in the movable slot 19. With the help of the traction rod 4, the support rod 7 can be opened or closed. The position of the collision balls 21 can be flexibly adjusted, so that the whole device has good retraction performance, reduces the space occupied, is easy to use, and increases the flexibility of the device.

[0036] In order to provide protection for the electric actuator 23, refer to Figure 1 The top of the telescopic column 3 is fixedly installed with a top cover 9 to protect the electric push rod 23, and the top cover 9 prevents the electric push rod 23 from being exposed and damaged.

[0037] To accurately adjust the reach height, refer to... Figure 4The telescopic column 3 has a scale groove on one side, and a scale bar 31 is provided on the inner wall of the scale groove. The top of the scale bar 31 is flush with the top of the support frame 2. At this time, the displayed value on the scale bar 31 is the lowest height of the entire reach. When the telescopic column 3 and the scale bar 31 rise, the adjusted reach height can be accurately observed.

[0038] To avoid injury to trainees and to assess training progress, refer to Figure 1 , Figure 2 and Figure 3 The outer wall of the collision ball 21 is provided with a protective ball sleeve 5, and the outer wall of the hanging column 8 is provided with a protective tube sleeve 6. The protective tube sleeve 6 is fixed to the protective ball sleeve 5. A metal ball 25 is placed inside the collision ball 21, and a sound transmission hole 11 is opened through the middle of the collision ball 21 and the protective ball sleeve 5. The protective ball sleeve 5 and the protective tube sleeve 6 can protect the collision process and prevent the trainee's hand from being injured. The collision between the metal ball 25 and the inner wall of the collision ball 21 also produces sound, which can serve as feedback on whether the trainee has reached the target height, helping the trainee to better judge their training status.

[0039] To balance the portability and operational stability of the entire device, refer to Figure 2 , Figure 4 and Figure 5 The inner wall of the support shell 1 is equipped with multiple guide columns 14, and a movable plate 17 is fitted on the guide column 14. The outer wall of each guide column 14 is fixed with a support ring 15. The bottom of each support ring 15 is fixed with a spring 16 at the top of the movable plate 17. The bottom four corners of the movable plate 17 are fixed with casters 18, and the bottom four corners of the support shell 1 are provided with inlets and outlets 34 for the casters 18 to move. The bottom four corners of the telescopic column 3 are fixed with pressing columns 29 for pressing the movable plate 17, and the bottom four corners of the support frame 2 are provided with through holes for the pressing columns 29 to pass through. When the device is not in use, the telescopic column 3 descends to press the movable plate 17, so that the casters 18 extend to facilitate the movement of the device. When in use, the telescopic column 3 rises, and the casters 18 retract under the reset action of the spring 16, making the device more stable and realizing the convenience of movement and the stability of use of the entire device.

[0040] To achieve integrated control of the electric actuator 23 and the forward / reverse motor 28, refer to Figure 1 and Figure 5 A controller 10 is fixedly installed on one side of the top of the support shell 1, and a battery 33 is installed on the inner wall of the support shell 1. The controller 10, battery 33, electric push rod 23 and forward and reverse motor 28 are electrically connected, which facilitates the integrated control of electric push rod 23 and forward and reverse motor 28, making it convenient for trainees to operate the device.

[0041] Working principle: When it is necessary to adjust the height of the reach, the controller 10 starts the forward and reverse motor 28 to drive the threaded column 13 to rotate, thereby adjusting the height of the telescopic column 3 and realizing the fine adjustment of the height of the entire device. At the same time, the scale bar 31 on one side of the telescopic column 3 can help the user to accurately grasp the adjusted height.

[0042] Under the action of the electric push rod 23 in the unfolding and closing assembly, the lifting seat 20 moves up and down in the movable slot 19, thereby unfolding and closing the support rod 7. When the trainee reaches for the target height, the collision ball 21 can swing flexibly within a certain range. When the collision ball 21 swings, the metal pellet 25 collidees inside the ball to produce sound, which is transmitted through the sound transmission hole 11, serving as feedback on whether the trainee has reached the target height. When the telescopic column 3 rises, the squeezing column 29 releases the squeezing of the movable plate 17, the spring 16 restores its elastic deformation, and pushes the movable plate 17 upward. The caster wheel 18 then retracts into the support shell 1, making the entire device stably placed on the ground. When the telescopic column 3 descends, the squeezing column 29 squeezes the movable plate 17 and the caster wheel 18 downward, causing the caster wheel 18 to move out of the inlet and outlet 34, making it easy to move the entire device.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A height-adjustable jump training device for track and field, comprising a support shell (1), characterized in that, The top of the support shell (1) is provided with an installation port (32), and a support frame (2) is installed on the inner wall of the installation port (32). A telescopic column (3) is inserted into the inner wall of the support frame (2). A lifting component for adjusting the height of the telescopic column (3) is provided on the support frame (2). Support rods (7) are hinged to the top of both sides of the telescopic column (3). An unfolding and closing component for adjusting the position of the two support rods (7) is provided on the telescopic column (3). Spherical grooves (26) are evenly distributed at the bottom of the support rods (7). Universal balls (22) are snapped into the inner wall of the spherical grooves (26). Hanging columns (8) are fixed to the bottom of the universal balls (22). Hollow collision balls (21) are fixed to the bottom of the hanging columns (8). A slot (24) communicating with the spherical grooves (26) is opened in the middle of the bottom of the support rod (7).

2. The adjustable height reach device for track and field jump training according to claim 1, characterized in that, The unfolding and closing assembly includes an installation groove on the top of the telescopic column (3), and an electric push rod (23) is fixedly installed on the inner wall of the installation groove. A movable groove (19) is provided on the telescopic column (3). A lifting seat (20) inserted into the movable groove (19) is fixedly installed on the piston end of the electric push rod (23). The two ends of the lifting seat (20) are respectively hinged to the bottom of the two support rods (7) with traction rods (4).

3. The adjustable height reach device for track and field jump training according to claim 2, characterized in that, The top of the telescopic column (3) is fixedly installed with a top cover (9) for protecting the electric push rod (23).

4. The track and field jump training height fine-adjustment reach device according to claim 3, characterized in that, The telescopic column (3) has a scale groove on one side, and a scale strip (31) is provided on the inner wall of the scale groove.

5. The adjustable height reach device for track and field jump training according to claim 1, characterized in that, The outer wall of the collision ball (21) is provided with a protective ball sleeve (5), and the outer wall of the hanging column (8) is provided with a protective tube sleeve (6). The protective tube sleeve (6) is fixed to the protective ball sleeve (5). The interior of the collision ball (21) contains metal pellets (25), and a sound transmission hole (11) is opened through the middle position of both the collision ball (21) and the protective ball sleeve (5).

6. The track and field jump training height fine-adjustment reach device according to claim 4, characterized in that, The lifting assembly includes a mounting base (12) fixed to the top of the inner wall of the support frame (2), and a through-hole (27) for the mounting base (12) to pass through on the telescopic column (3). A mounting hole is provided at the middle position of the mounting base (12) and the middle position of the bottom of the support frame (2). A threaded column (13) is rotatably connected to the inner wall of the mounting hole through a bearing. A threaded groove that matches the outer wall of the threaded column (13) is provided at the middle position of the bottom of the telescopic column (3). A forward and reverse motor (28) is fixedly installed on the bottom side of the support frame (2), and a meshing bevel gear (30) is fixedly installed on the output shaft of the forward and reverse motor (28) and the bottom of the outer wall of the threaded column (13).

7. The adjustable height reach device for track and field jump training according to claim 2, characterized in that, The inner wall of the support shell (1) is equipped with multiple guide posts (14), and a movable plate (17) is fitted on the guide post (14). The outer wall of the guide post (14) is fixed with a support ring (15). The bottom of the support ring (15) is fixed with a spring (16) at the top of the movable plate (17). The four bottom corners of the movable plate (17) are fixed with casters (18), and the four bottom corners of the support shell (1) are provided with inlets and outlets (34) for the casters (18) to move. The four bottom corners of the telescopic post (3) are fixed with extrusion posts (29) for pressing the movable plate (17), and the four bottom corners of the support frame (2) are provided with through holes for the extrusion posts (29) to pass through.

8. The track and field jump training height fine-adjustment reach device according to claim 5, characterized in that, A controller (10) is fixedly installed on one side of the top of the support shell (1), and a battery (33) is installed on the inner wall of the support shell (1). The controller (10), battery (33), electric push rod (23) and forward and reverse motor (28) are electrically connected.

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