Resistance-adjustable physical training equipment

Abstract

The invention relates to the technical field of training instruments, and particularly discloses resistance-adjustable physical training equipment which comprises an inclined frame, supporting frames are fixedly connected to the two sides of the inclined frame, the two supporting frames are different in height, a pushing frame is movably connected to the exterior of the inclined frame, and pushing parts are arranged at the bottoms of the front end and the rear end of the pushing frame. A speed reduction assembly used for slowing down the movement of the pushing frame towards the inclined lower portion is arranged above the inclined frame, the top of the pushing frame is fixedly connected with a counter weight frame, and the speed reduction assembly comprises vertical plates fixedly connected to the two sides of the top of the inclined frame. The situation that a user is injured by the pushing frame is reduced, the use safety of the equipment is improved, and the speed of the pushing frame reaching the right bottom position of the limiting plate is low, so that the user can directly hold the handheld part by hand to push the pushing part and the pushing frame again, and the throwing training efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of training equipment, in particular to a sports training device with adjustable resistance. Background Art

[0002] Sports training equipment is a special device used to improve the physical fitness, skills and competitive level of athletes. Shot put is a type of track and field event. It not only requires athletes to have good physical qualities such as tall stature, great strength and strong explosive power, but also requires them to have very strong technical qualities. The improvement of shot put technical movements is not achieved overnight, but requires gradual, step-by-step, long-term scientific training, and sometimes even takes more than ten years.

[0003] In traditional shot put training, the thrower needs to run to the landing point of the shot put to pick up the shot put after throwing it, which wastes a lot of time and energy and greatly affects the teaching effect of shot put throwing training. There is currently a shot put throwing training device, in which a sliding component for pushing is slidably installed on an inclined rod. The user pushes the sliding component obliquely upward to achieve the purpose of training. When the throwing is completed, the sliding component returns to the initial position due to gravity, so that the throwing can continue, thereby improving the throwing efficiency.

[0004] However, when the sliding component reaches the highest point, it will drop rapidly at a certain acceleration. When it reaches the bottom, the speed is relatively fast. On the one hand, it is easy to cause injury to the training personnel and affect the safety of the equipment when in use. On the other hand, the sliding component that drops too fast needs to hit the buffer component at the bottom of the equipment to stop moving before the user can push the sliding component again, which affects the efficiency of throwing to a certain extent. Summary of the invention

[0005] The purpose of the present invention is to provide a sports training equipment with adjustable resistance, which can slow down the speed of the pushing frame when it reaches the right bottom position of the limiting plate, reduce the possibility of users being hit by the pushing frame, and improve the safety of the equipment. Since the speed of the pushing frame when it reaches the right bottom position of the limiting plate is slow, the user can directly hold the hand-held part and align the pushing part and the pushing frame again, thereby improving the efficiency of throwing training and solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sports training equipment with adjustable resistance, comprising an inclined frame, both sides of the inclined frame are fixedly connected with support frames, the two support frames have different heights, a pushing frame is movably connected to the outside of the inclined frame, and a pushing portion is provided at the bottom of the front and rear ends of the pushing frame, and a deceleration component for slowing down the movement of the pushing frame obliquely downward is provided above the inclined frame, and a counterweight frame is fixedly connected to the top of the pushing frame, the deceleration component comprises vertical plates fixedly connected to both sides of the top of the inclined frame, a limiting plate is fixedly connected between the two vertical plates, and a limiting block is fixedly connected to the right part of the top surface of the limiting plate, and the deceleration component also includes a receiving groove opened in the pushing frame, and a wind shield frame is provided inside the receiving groove, a moving rod is fixedly connected to the right bottom of the wind shield frame, and the outer wall of the moving rod is slidably connected to the pushing frame, and a lifting frame is slidably connected to the left side below the wind shield frame inside the pushing frame, and a blocking spring is fixedly connected to the bottom of the lifting frame, and an air inlet groove is opened inside the pushing frame on the right side of the receiving groove.

[0007] Preferably, the top of the lifting frame and the left side of the bottom of the wind shield frame are both inclined, and a U-shaped spring piece is fixedly connected between the lifting frame and the pushing frame.

[0008] Preferably, the interior of the wind shield frame is hollow, and an air guide cover is fixedly connected to the outside of the air inlet slot on the right side of the pushing frame.

[0009] Preferably, a round rod is fixedly connected at both front and rear ends between the two vertical plates, a round groove is opened on the surface of the pushing frame, the round rod passes through the inside of the round groove, an auxiliary component is arranged inside the pushing frame above the limiting plate, the auxiliary component comprises an empty groove opened inside the pushing frame above the limiting plate, a cam is arranged inside the empty groove, a rotating rod is fixedly connected to the top of the middle part of the cam, the outer wall of the rotating rod is rotatably connected to the pushing frame, the top of the outer wall of the rotating rod extends into the internal annular array of the air inlet groove and is fixedly connected to a wind cup, a small rod is fixedly connected to the inside of the empty groove, the outer wall of the small rod is rotatably connected to the pushing plate, the front end of the pushing plate extends into the vicinity of the cam, the right rear end of the pushing plate is fixedly connected to a small plate, the rear end of the small plate is fixedly connected to a medium bag, the rear end of the medium bag is fixedly plugged with a small tube, and the rear end of the small tube is fixedly connected to an extrusion bag.

[0010] Preferably, the rotation connection between the push plate and the small rod is located at the right part of the push plate.

[0011] Preferably, a slow reflux component is provided inside the small tube, and the slow reflux component includes elastic strips fixedly connected to the inner wall of the small tube in a ring array, and the elastic strips are inclined, and a flexible membrane is fixedly connected between the outer walls of the multiple elastic strips and the small tube.

[0012] Preferably, a clamping assembly is arranged above the pushing frame, and the clamping assembly includes a linear array of slots opened on the left side of the vertical part of the counterweight frame, a fixing ring is sleeved on the outer side of the vertical part of the counterweight frame, a plug rod is slidably connected to the left part of the fixing ring, and a counterweight plate is arranged on the outer side of the vertical part of the counterweight frame below the fixing ring.

[0013] Preferably, a corrugated bladder is fixedly connected to the outer side of the bottom of the vertical part of the counterweight frame, a discharge pipe is fixedly inserted into the right bottom of the corrugated bladder, an inlet pipe is fixedly inserted into the right top of the corrugated bladder, an annular groove is provided on the top surface of the bottom of the counterweight frame, a first elastic membrane is fixedly connected to the inside of the annular groove, a partition is fixedly connected to the inner side of the vertical part of the counterweight frame, one end of the inlet pipe away from the corrugated bladder extends into the interior of the counterweight frame at a position above the partition, and one end of the discharge pipe away from the corrugated bladder extends into the interior of the counterweight frame at a position below the partition, and check valves are fixedly installed inside the discharge pipe and the inlet pipe.

[0014] Preferably, a sleeve is fixedly connected to the top of the counterweight frame, the bottom of the sleeve is fixedly plugged with the partition, and a second elastic membrane is fixedly connected between the sleeve and the inside of the counterweight frame and above the partition.

[0015] Preferably, a small hole is opened on the outer wall of the sleeve above the partition, a rubber plug is arranged inside the sleeve, a straight rod is fixedly connected to the top of the rubber plug, a thread is opened on the top of the straight rod, and the top of the straight rod is threadedly connected to the top of the sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Through the action of the deceleration component, the speed of the push frame when it reaches the right bottom position of the limiting plate can be slowed down, reducing the possibility of the user being hit by the push frame, improving the safety of the equipment, and because the speed of the push frame when it reaches the right bottom position of the limiting plate is slow, the user can directly hold the hand-held part and align the push part and the push frame again, thereby improving the efficiency of throwing training;

[0018] 2. Through the action of the auxiliary component, the extrusion bag can be brought into contact with the round rod near the round rod to generate friction, thereby further slowing down the speed at which the pushing frame and the pushing part move downward to the right bottom position of the limiting plate, further improving the safety of the equipment and the efficiency of throwing training. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is the overall structural view of the present invention;

[0021] Figure 2 It is a schematic diagram of the local structure of the tilting frame of the present invention;

[0022] Figure 3 It is a schematic diagram of a half-section structure of the push frame of the present invention;

[0023] Figure 4 It is a schematic diagram of a half-section structure of the top area of ​​the push frame of the present invention;

[0024] Figure 5 It is an enlarged view of A of 4 of the present invention;

[0025] Figure 6 It is a schematic diagram of a partial top-sectional structure of the pushing frame of the present invention;

[0026] Figure 7 It is an enlarged view of B of 6 of the present invention;

[0027] Figure 8 It is a half-section structural schematic diagram of the counterweight frame of the present invention;

[0028] Fig. 9 It is an enlarged view of C of 8 of the present invention.

[0029] Description of reference numerals:

[0030] 1. Tilt frame; 2. Support frame; 3. Round groove; 4. Push frame; 5. Push part; 6. Speed ​​reduction assembly; 61. Vertical plate; 62. Limit plate; 63. Limit block; 64. Accommodating groove; 65. Wind shield; 66. Moving rod; 67. Lifting frame; 68. Blocking spring; 69. U-shaped spring; 610. Air inlet groove; 611. Wind guide cover; 7. Auxiliary assembly; 71. Empty groove; 72. Cam; 73. Rotating rod; 74. Wind cup; 75. Small rod; 76. Push plate; 77. Small plate; 78. small tube; 79, extrusion bag; 710, medium bag; 8, slow reflux assembly; 81, elastic strip; 82, flexible membrane; 9, clamping assembly; 91, slot; 92, fixing ring; 93, plug rod; 94, counterweight plate; 95, bellows; 96, discharge pipe; 97, arc groove; 98, first elastic membrane; 99, partition; 910, inlet pipe; 911, check valve; 912, sleeve; 913, second elastic membrane; 914, rubber plug; 915, straight rod; 10, counterweight frame; 11, round rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 5The present invention provides a technical solution: a sports training device with adjustable resistance, comprising an inclined frame 1, both sides of the inclined frame 1 are fixedly connected with support frames 2, the heights of the two support frames 2 are different, the inclined frame 1 is externally movably connected with a pushing frame 4, the bottoms of the front and rear ends of the pushing frame 4 are provided with pushing parts 5, a deceleration component 6 for slowing down the movement of the pushing frame 4 obliquely downward is provided above the inclined frame 1, a counterweight frame 10 is fixedly connected to the top of the pushing frame 4, the deceleration component 6 comprises vertical plates 61 fixedly connected to both sides of the top of the inclined frame 1, a limiting plate 62 is fixedly connected between the two vertical plates 61, a limiting block 63 is fixedly connected to the right part of the top surface of the limiting plate 62, the deceleration component 6 also includes a plate opened on the pushing frame 4 The internal accommodating slot 64 has a wind shield frame 65 disposed inside the accommodating slot 64, a moving rod 66 is fixedly connected to the bottom right side of the wind shield frame 65, the outer wall of the moving rod 66 is slidably connected to the pushing frame 4, a lifting frame 67 is slidably connected to the left side below the wind shield frame 65 inside the pushing frame 4, a blocking spring piece 68 is fixedly connected to the bottom of the lifting frame 67, an air inlet slot 610 is opened inside the pushing frame 4 on the right side of the accommodating slot 64, the top of the lifting frame 67 and the left side of the bottom of the wind shield frame 65 are both inclined, a U-shaped spring piece 69 is fixedly connected between the lifting frame 67 and the pushing frame 4, the interior of the wind shield frame 65 is hollow, and an air guide cover 611 is fixedly connected to the outside of the air inlet slot 610 on the right side of the pushing frame 4.

[0033] By adopting the above technical solution, the pushing frame 4 is rotatably connected with a ball near the tilting frame 1, and the ball is in contact with the outer wall of the tilting frame 1 away from the pushing frame 4, so as to reduce the friction when the tilting frame 1 and the pushing frame 4 move.

[0034] When in use, the user holds the bottom of the pushing part 5 and pushes the pushing part 5 and the pushing frame 4 obliquely upward. The weight plate 94 can be installed on the weight frame 10 to adjust the weight of the pushing frame 4. In this way, the resistance encountered by the user when pushing the part 5 and the pushing frame 4 can be adjusted to meet different training requirements.

[0035] The vertical plate 61 is used to install the limiting plate 62. In order to prevent the pushing frame 4 from descending to the bottom at a high speed, the device is provided with a deceleration component 6. When the pushing frame 4 reaches the highest point and descends at a high speed, as the pushing frame 4 descends and moves to the bottom right area close to the limiting plate 62, the speed of the pushing frame 4 reaches a relatively high speed. Therefore, the external wind will enter from the air inlet slot 610, and the design of the wind guide cover 611 is conducive to introducing more air into the interior of the air inlet slot 610, so that the air flow rate inside the air inlet slot 610 is faster, which is conducive to the air pushing the wind shield frame 65 to the left direction, so that the wind shield frame 65 moves to the left direction inside the accommodating slot 64, and the moving rod 66 slides at the inclined part of the bottom of the wind shield frame 65 in the pushing frame 4 to the lifting frame 67 The inclined part is squeezed, so that the lifting frame 67 moves downward and the U-shaped spring piece 69 is compressed. As the lifting frame 67 moves downward, the blocking spring piece 68 moves downward accordingly, so that its bottom can block the limiting block 63 on the limiting plate 62. At this time, when the pushing frame 4 moves, under the blocking and limiting action of the blocking spring piece 68, it is beneficial to slow down the speed at which the pushing frame 4 and the pushing part 5 move downward. Such a design can make the pushing frame 4 reach the right bottom position of the limiting plate 62 at a slower speed, reduce the situation where the user is hit by the pushing frame 4, and improve the safety of the equipment. Moreover, since the pushing frame 4 reaches the right bottom position of the limiting plate 62 at a slower speed, the user can directly hold the hand-held part and push the pushing part 5 and the pushing frame 4 again, thereby improving the efficiency of throwing training.

[0036] When the pushing part 5 and the pushing frame 4 are pushed upward, the gas will not enter the air inlet slot 610. Under the elastic force of the U-shaped spring piece 69, the lifting frame 67 and the blocking spring piece 68 are in the initial state. The bottom of the blocking spring piece 68 does not block the limiting block 63 and does not affect normal throwing.

[0037] It should be noted that when the pushing frame 4 and the pushing portion 5 move downward at a faster speed, the thrust of the wind is greater than the elastic force of the U-shaped spring piece 69 .

[0038] Specifically, Figures 2 to 7As shown, the front and rear ends between the two vertical plates 61 are fixedly connected with a round rod 11, the surface of the pushing frame 4 is provided with a round groove 3, the round rod 11 passes through the inside of the round groove 3, the inside of the pushing frame 4 is provided with an auxiliary component 7 above the limiting plate 62, the auxiliary component 7 includes an empty groove 71 opened in the pushing frame 4 above the limiting plate 62, the inside of the empty groove 71 is provided with a cam 72, the middle part of the cam 72 is fixedly connected with a rotating rod 73 at the top, the outer wall of the rotating rod 73 is rotatably connected to the pushing frame 4, and the rotating rod 73 The top of the outer wall extends into the internal annular array of the air inlet slot 610 and is fixedly connected to a wind cup 74, the inside of the empty slot 71 is fixedly connected to a small rod 75, the outer wall of the small rod 75 is rotatably connected to a push plate 76, the front end of the push plate 76 extends into the vicinity of the cam 72, the right rear end of the push plate 76 is fixedly connected to a small plate 77, the rear end of the small plate 77 is fixedly connected to a medium bag 710, the rear end of the medium bag 710 is fixedly plugged with a small tube 78, the rear end of the small tube 78 is fixedly connected to an extrusion bag 79, and the extrusion bag 79 is made of a flexible and wear-resistant rubber material.

[0039] By adopting the above technical scheme, the inner diameter of the circular groove 3 is larger than the diameter of the round rod 11. In order to improve the deceleration effect, the device is provided with an auxiliary component 7. When the pushing frame 4 and the pushing part 5 move downward too fast, the air speed entering the air inlet groove 610 is faster, which can blow the wind cup 74 to rotate quickly, thereby causing the rotating rod 73 to rotate, so that the cam 72 inside the empty groove 71 can rotate. When the cam 72 rotates, it can squeeze the left front part of the pushing plate 76, so that the pushing plate 76 rotates around the axis of the small rod 75, so that the small plate 77 moves to squeeze the medium capsule 710, so that the liquid medium in the medium capsule 710 enters the interior of the small tube 78, and then enters the interior of the squeezing capsule 79, thereby causing the squeezing capsule 79 to expand. At this time, the squeezing capsule 79 contacts the round rod 11 close to the round rod 11 to generate friction, thereby further slowing down the speed of the pushing frame 4 and the pushing part 5 when moving downward to the right bottom position of the limiting plate 62, further improving the safety of the equipment and improving the efficiency of throwing training.

[0040] The medium bag 710 itself has elasticity, and when the wind cup 74 does not rotate, the liquid medium returns to the inside of the medium bag 710.

[0041] Specifically, Figures 4 to 6 As shown, the rotation connection between the push plate 76 and the small rod 75 is located at the right part of the push plate 76.

[0042] By adopting the above technical solution, such a design makes the cam 72 equivalent to a labor-saving lever when rotating and pushing the pushing plate 76, so that the small plate 77 can smoothly squeeze the medium capsule 710.

[0043] Specifically, Figures 4 to 7 As shown, a slow reflux component 8 is arranged inside the small tube 78, and the slow reflux component 8 includes elastic strips 81 fixedly connected to the inner wall of the small tube 78 in a ring array, and the elastic strips 81 are inclined, and a flexible membrane 82 is fixedly connected between the outer walls of the plurality of elastic strips 81 and the small tube 78.

[0044] By adopting the above technical solution, due to the inclined design of the elastic strip 81, the opening of the flexible membrane 82 on the side close to the squeezing bag 79 is smaller. When the small plate 77 squeezes the medium bag 710, the liquid medium in the medium bag 710 enters the interior of the small tube 78, and the liquid medium in the small tube 78 flows toward the squeezing bag 79, so that the opening of the flexible membrane 82 on the side close to the squeezing bag 79 is stretched open, which is convenient for the liquid medium to flow in. When the medium returns to the medium bag 710 due to the elastic force of the medium bag 710 itself, the medium in the small tube 78 flows toward the medium bag 710. Under the squeezing force of the flowing medium, the opening of the flexible membrane 82 on the side close to the squeezing bag 79 becomes smaller, slowing down the speed of contraction of the squeezing bag 79, so that the squeezing bag 79 can be kept in contact with the round rod 11 for a period of time, further slowing down the speed of the pushing frame 4 and the pushing part 5 moving downward to the right bottom position of the limiting plate 62, further improving the safety of the equipment and improving the efficiency of throwing training.

[0045] It should be noted that the cross-sectional area of ​​the medium capsule 710 is set to be relatively large, and when the medium capsule 710 is squeezed, more liquid medium enters the small tube 78.

[0046] It should be noted that when the push frame 4 moves downward at a faster speed, the force of the wind cup 74 with the rotating rod 73 and the cam 72 is greater than the sum of the elastic force of the extrusion bag 79 itself and the elastic force of the elastic strip 81, so that the force of the wind cup 74 with the rotating rod 73 and the cam 72 is sufficient to squeeze the extrusion bag 79.

[0047] Specifically, Figure 1 to Figure 2 and Figures 8 to 9As shown, a clamping assembly 9 is arranged above the pushing frame 4, and the clamping assembly 9 includes a linear array of card slots 91 opened on the left side of the vertical part of the counterweight frame 10, a fixing ring 92 is sleeved on the outer side of the vertical part of the counterweight frame 10, and a plug rod 93 is slidably connected to the left part of the fixing ring 92, and a counterweight plate 94 is arranged on the outer side of the vertical part of the counterweight frame 10 below the fixing ring 92, a corrugated bag 95 is fixedly connected to the outer side of the bottom of the vertical part of the counterweight frame 10, a discharge pipe 96 is fixedly inserted at the right bottom of the corrugated bag 95, and an entry pipe 910 is fixedly inserted at the right top of the corrugated bag 95, arc grooves 97 are opened on both sides of the upper end of the counterweight frame 10, and a first elastic membrane 98 is fixedly connected to the inside of the arc groove 97, and a partition plate 99 is fixedly connected to the inner side of the vertical part of the counterweight frame 10, and the entry pipe 910 is away from the corrugated bag 95. The end of the described discharge pipe 96 extends into the interior of the counterweight frame 10 and is located above the partition 99. The end of the described discharge pipe 96 away from the corrugated bag 95 extends into the interior of the counterweight frame 10 and is located below the partition 99. The check valve 911 is fixedly installed inside the described discharge pipe 96 and the inlet pipe 910. The top of the described counterweight frame 10 is fixedly connected with a sleeve 912. The bottom of the described sleeve 912 is fixedly plugged with the partition 99. A second elastic membrane 913 is fixedly connected between the described sleeve 912 and the interior of the counterweight frame 10 and located above the partition 99. A small hole is opened on the outer wall of the described sleeve 912 above the partition 99. A rubber plug 914 is arranged inside the described sleeve 912. The top of the described rubber plug 914 is fixedly connected with a straight rod 915. The top of the described straight rod 915 is provided with a thread. The top of the described straight rod 915 is threadedly connected to the top of the sleeve 912.

[0048] The check valve 911 is a mature existing technology, and its principle and installation method will not be elaborated on. The check valve 911 inside the discharge pipe 96 only allows the medium to flow out of the bellows 95 into the discharge pipe 96, and the check valve 911 inside the inlet pipe 910 only allows the medium from the end of the inlet pipe 910 to flow toward the bellows 95.

[0049] By adopting the above technical solution, when adding counterweight in the traditional way, the counterweight plate 94 is usually fixed by a spiral fastening method. However, due to the constant throwing during use, the counterweight plate 94 is prone to shaking, affecting the stability of the installation of the counterweight plate 94, and the partial impact of the counterweight plate 94 on the counterweight frame 10 is prone to cause the threaded part of the spiral fastening to slip, affecting the service life of the device. Therefore, the present device is designed with a clamping assembly 9.

[0050] When in use, the required counterweight plate 94 is inserted from the vertical part of the counterweight frame 10, and then the fixing ring 92 is inserted. It should be noted that the spacing between the multiple slots 91 is adapted to the thickness of the counterweight plate 94. After the fixing ring 92 is inserted, the insertion rod 93 is aligned with the slot 91 and the insertion rod 93 is inserted into the slot 91. The right end of the insertion rod 93 is fixedly connected to a magnetic block, and the counterweight frame 10 is made of iron material. The insertion rod 93 is limited by the adsorption force of the magnetic block.

[0051] When throwing after installation, if the counterweight plate 94 shakes, the counterweight plate 94 at the bottom squeezes the bellows 95. When the bellows 95 is squeezed, the liquid medium inside enters the discharge pipe 96 from the bellows 95 and enters the counterweight frame 10 below the partition 99. When the counterweight plate 94 does not squeeze the bellows 95 during the shaking process, the medium above the partition 99 inside the counterweight frame 10 enters the bellows 95 under the elastic force of the bellows 95 itself. Then the counterweight plate 94 shakes, and the medium above the partition 99 inside the counterweight frame 10 enters the counterweight frame 10 below the partition 99, causing the first elastic membrane 98 inside the arc groove 97 to expand, thereby squeezing the counterweight plate 94, thereby preventing subsequent shaking of the counterweight plate 94.

[0052] When the weight plate 94 needs to be taken out, the straight rod 915 can be manually rotated to move the straight rod 915 upward with the rubber plug 914. At this time, the rubber plug 914 does not block the small hole opened on the sleeve 912, so that the upper and lower parts of the partition 99 are connected, and the second elastic membrane 913 and the first elastic membrane 98 return to the initial state under the action of their own elastic force.

[0053] Working principle: When in use, the user holds the bottom position of the pushing part 5 and pushes the pushing part 5 and the pushing frame 4 obliquely upward. The counterweight plate 94 can be installed on the counterweight frame 10 to adjust the weight of the pushing frame 4. In this way, the resistance encountered by the user when pushing the part 5 and the pushing frame 4 can be adjusted to meet different training requirements. The external wind will enter from the air inlet slot 610, and the design of the wind guide cover 611 is conducive to introducing more air into the interior of the air inlet slot 610, so that the air flow rate inside the air inlet slot 610 is faster, which is conducive to the air pushing the wind shield frame 65 to the left direction, so that the wind shield frame 65 moves to the left direction inside the accommodating slot 64, and the moving rod 66 slides the wind shield frame 65 in the pushing frame 4 at the inclined part of the bottom to the lifting frame 67 The inclined part is squeezed, so that the lifting frame 67 moves downward and the U-shaped spring piece 69 is compressed. As the lifting frame 67 moves downward, the blocking spring piece 68 moves downward accordingly, so that its bottom can block the limiting block 63 on the limiting plate 62. At this time, when the pushing frame 4 moves, under the blocking and limiting action of the blocking spring piece 68, it is beneficial to slow down the speed at which the pushing frame 4 and the pushing part 5 move downward. Such a design can slow down the speed of the pushing frame 4 when it reaches the right bottom position of the limiting plate 62, reduce the situation where the user is hit by the pushing frame 4, and improve the safety of the equipment. Moreover, since the speed of the pushing frame 4 when it reaches the right bottom position of the limiting plate 62 is slow, the user can directly hold the hand-held part and push the pushing part 5 and the pushing frame 4 again, thereby improving the efficiency of throwing training.

[0054] When throwing after installation, if the counterweight plate 94 shakes, the counterweight plate 94 at the bottom squeezes the bellows 95. When the bellows 95 is squeezed, the liquid medium inside enters the discharge pipe 96 from the bellows 95 and enters the counterweight frame 10 below the partition 99. When the counterweight plate 94 does not squeeze the bellows 95 during the shaking process, the medium above the partition 99 inside the counterweight frame 10 enters the bellows 95 under the elastic force of the bellows 95 itself. Then the counterweight plate 94 shakes, and the medium above the partition 99 inside the counterweight frame 10 enters the counterweight frame 10 below the partition 99, causing the first elastic membrane 98 inside the arc groove 97 to expand, thereby squeezing the counterweight plate 94, thereby preventing subsequent shaking of the counterweight plate 94.

[0055] When the weight plate 94 needs to be taken out, the straight rod 915 can be manually rotated to move the straight rod 915 upward with the rubber plug 914. At this time, the rubber plug 914 does not block the small hole opened on the sleeve 912, so that the upper and lower parts of the partition 99 are connected, and the second elastic membrane 913 and the first elastic membrane 98 return to the initial state under the action of their own elastic force.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sports training device with adjustable resistance, comprising a tilt frame (1), characterized in that: Both sides of the tilting frame (1) are fixedly connected to support frames (2), the two support frames (2) have different heights, the tilting frame (1) is externally movably connected to a push frame (4), the bottoms of both front and rear ends of the push frame (4) are provided with push parts (5), the top of the tilting frame (1) is provided with a deceleration component (6) for slowing down the movement of the push frame (4) obliquely downward, and the top of the push frame (4) is fixedly connected to a counterweight frame (10); The deceleration assembly (6) comprises vertical plates (61) fixedly connected to both sides of the top of the tilting frame (1), a limiting plate (62) fixedly connected between the two vertical plates (61), a limiting block (63) fixedly connected to the right part of the top surface of the limiting plate (62), the deceleration assembly (6) also comprises a receiving groove (64) opened in the pushing frame (4), a wind shielding frame (65) is arranged inside the receiving groove (64), a moving rod (66) is fixedly connected to the right bottom of the wind shielding frame (65), the outer wall of the moving rod (66) is slidably connected to the pushing frame (4), a lifting frame (67) is slidably connected to the left side below the wind shielding frame (65) inside the pushing frame (4), a blocking spring sheet (68) is fixedly connected to the bottom of the lifting frame (67), and an air inlet groove (610) is opened inside the pushing frame (4) on the right side of the receiving groove (64).

2. A sports training device with adjustable resistance according to claim 1, characterized in that: The top of the lifting frame (67) and the left side of the bottom of the wind shield frame (65) are both inclined, and a U-shaped spring piece (69) is fixedly connected between the lifting frame (67) and the pushing frame (4).

3. A sports training device with adjustable resistance according to claim 2, characterized in that: The interior of the wind shield frame (65) is hollow, and the right side of the pushing frame (4) is fixedly connected to the outside of the air inlet slot (610) with an air guide cover (611).

4. A sports training device with adjustable resistance according to claim 1, characterized in that: A round rod (11) is fixedly connected to both the front and rear ends between the two vertical plates (61); a round groove (3) is provided on the surface of the pushing frame (4); the round rod (11) passes through the inside of the round groove (3); an auxiliary component (7) is provided inside the pushing frame (4) above the limiting plate (62); the auxiliary component (7) comprises an empty groove (71) provided inside the pushing frame (4) above the limiting plate (62); a cam (72) is provided inside the empty groove (71); a rotating rod (73) is fixedly connected to the top of the middle part of the cam (72); an outer wall of the rotating rod (73) rotates with the pushing frame (4) The top of the outer wall of the rotating rod (73) extends into the inner annular array of the air inlet slot (610) and is fixedly connected to a wind cup (74); the interior of the empty slot (71) is fixedly connected to a small rod (75); the outer wall of the small rod (75) is rotatably connected to a push plate (76); the front end of the push plate (76) extends into a position close to the cam (72); the right rear end of the push plate (76) is fixedly connected to a small plate (77); the rear end of the small plate (77) is fixedly connected to a medium bag (710); the rear end of the medium bag (710) is fixedly plugged with a small tube (78); the rear end of the small tube (78) is fixedly connected to an extrusion bag (79).

5. A sports training device with adjustable resistance according to claim 4, characterized in that: The rotation connection point between the push plate (76) and the small rod (75) is located at the right part of the push plate (76).

6. A sports training device with adjustable resistance according to claim 5, characterized in that: A slow reflux component (8) is arranged inside the small tube (78), and the slow reflux component (8) includes elastic strips (81) fixedly connected to the inner wall of the small tube (78) in a ring array, and the elastic strips (81) are arranged obliquely, and a flexible membrane (82) is fixedly connected between the outer walls of the plurality of elastic strips (81) and the small tube (78).

7. A sports training device with adjustable resistance according to claim 1, characterized in that: A clamping assembly (9) is arranged above the pushing frame (4), and the clamping assembly (9) includes a linear array of slots (91) opened on the left side of the vertical part of the counterweight frame (10), a fixing ring (92) is sleeved on the outer side of the vertical part of the counterweight frame (10), and a plug rod (93) is slidably connected to the left part of the fixing ring (92), and a counterweight plate (94) is arranged on the outer side of the vertical part of the counterweight frame (10) below the fixing ring (92).

8. A sports training device with adjustable resistance according to claim 7, characterized in that: A bellows (95) is fixedly connected to the outer side of the bottom of the vertical part of the counterweight frame (10), a discharge pipe (96) is fixedly inserted into the right bottom of the bellows (95), and an inlet pipe (910) is fixedly inserted into the right top of the bellows (95). Arc grooves (97) are provided on both sides of the upper end of the counterweight frame (10), and a first elastic membrane (98) is fixedly connected inside the arc groove (97). A partition (99) is fixedly connected to the inner side of the vertical part of the counterweight frame (10). One end of the inlet pipe (910) away from the bellows (95) extends into the counterweight frame (10) at a position above the partition (99), and one end of the discharge pipe (96) away from the bellows (95) extends into the counterweight frame (10) at a position below the partition (99). Check valves (911) are fixedly installed inside the discharge pipe (96) and the inlet pipe (910).

9. A sports training device with adjustable resistance according to claim 8, characterized in that: The top of the counterweight frame (10) is fixedly connected with a sleeve (912), the bottom of the sleeve (912) is fixedly plugged with the partition (99), and a second elastic membrane (913) is fixedly connected between the sleeve (912) and the inside of the counterweight frame (10) and above the partition (99).

10. A sports training device with adjustable resistance according to claim 9, characterized in that: A small hole is provided on the outer wall of the sleeve (912) above the partition (99), a rubber plug (914) is provided inside the sleeve (912), a straight rod (915) is fixedly connected to the top of the rubber plug (914), a thread is provided on the top of the straight rod (915), and the top of the straight rod (915) is threadedly connected to the top of the sleeve (912).

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