Swimming training resistance device

Abstract

The application discloses a swimming training resistance device and relates to the technical field of swimming training tools, which comprises a waistband, a tightening belt sewn on the outer circle of the waistband, a locking assembly installed on a connecting seat, a fixing rod fixed to the rear end of the connecting seat, an anti-escape hook hung on the fixing rod, a detection ring hung on the anti-escape hook, a monitoring assembly installed on the detection ring, and a resistance assembly installed at the tail end of a connecting rope. The resistance assembly, the monitoring assembly and the waistband are matched, so that the resistance when swimming in water is improved during pool training, and the purpose of load training under different resistance states is achieved. The resistance size that athletes are subjected to when swimming in the pool under different speed states can be monitored, the speed change of the athletes in different time periods when swimming is clearly known, and the accuracy of resistance data display of users during swimming training is improved.

Description

Technical Field

[0001] This invention relates to the field of swimming training equipment technology, and in particular to a swimming training resistance device. Background Technology

[0002] Swimming training resistance equipment is mainly used to improve swimming resistance and training effects. These devices help athletes improve swimming skills and physical fitness by increasing the forward resistance in the water and enabling them to perform load training under different resistance conditions. Among them, the swimming resistance umbrella is a typical resistance equipment. It is connected to the athlete's waist through a fixed belt. When swimming, the water bag is fully opened to provide stable resistance and help practice swimming skills.

[0003] The main problems with existing swimming resistance umbrellas include: inconvenient resistance adjustment, lack of real-time monitoring, and inaccurate resistance data display. Firstly, resistance adjustment is inconvenient. Many existing swimming resistance devices, such as traditional resistance trainers, often have fixed resistance levels or can only be adjusted in limited ways. This prevents trainees from flexibly adjusting the resistance according to their training needs and physical condition, thus affecting training effectiveness and the fulfillment of personalized needs. Secondly, there is a lack of real-time monitoring. Currently, understanding the resistance values ​​of athletes at different speeds is crucial for coaches to develop training plans and evaluate training effectiveness in swimming training. However, most existing swimming resistance umbrellas lack real-time monitoring capabilities and cannot provide real-time feedback on the resistance data of athletes during swimming. This makes it difficult for coaches to accurately grasp the athletes' training status and provide targeted guidance. Furthermore, the resistance data display is inaccurate. Although some swimming resistance umbrellas claim to have monitoring functions, due to design or technical limitations, their monitoring results are often inaccurate. This may lead to misjudgments of training effectiveness by coaches and trainees, thus affecting the development and implementation of training plans.

[0004] In summary, existing swimming resistance equipment has significant problems in terms of resistance adjustment, real-time monitoring, and resistance data display, requiring further improvement and optimization to meet trainees' needs and enhance training effectiveness. Therefore, these problems need to be addressed and optimized. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a swimming training resistance device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a swimming training resistance device, comprising a waist belt and a tightening strap sewn onto the outer ring of the waist belt. Velcro is fitted onto the inner side of the tightening strap and the outer side of the waist belt. Elastic sections for tightening operations are provided on both sides of the rear end of the waist belt. A connecting groove is sewn into the center of the rear end face of the waist belt, and a connecting seat is installed within the connecting groove. A locking component for disassembly and assembly is installed on the connecting seat. A U-shaped fixing rod is fixedly connected to the center of the rear end face of the connecting seat. An anti-detachment hook is hung on the fixing rod, and a detection ring is hung on the anti-detachment hook. A connecting rod is installed at the bottom end of the detection ring, and a monitoring component for real-time monitoring of resistance values ​​is installed on the detection ring. A connecting rope is connected to the bottom end of the connecting rod via a rotating connector, and a resistance component for swimming training is installed at the tail end of the connecting rope.

[0007] Preferably, the resistance assembly includes a conical first resistance bucket, a second resistance bucket, and a third resistance bucket. The second resistance bucket is engaged in the lower circular opening of the first resistance bucket, and its bottom extends out of the first resistance bucket. The third resistance bucket is engaged in the lower circular opening of the second resistance bucket, and its bottom extends out of the second resistance bucket.

[0008] Preferably, the monitoring component includes mounting grooves on both sides of the detection ring, fixing blocks fixed in the mounting grooves, fixing strips fixed between the two fixing blocks, a movable strip movably disposed below the fixing strip, guide grooves on the opposite surfaces of the fixing blocks, a tension sensor fixed in the outer end of the guide groove, and a guide rod fixed to the contact end of the tension sensor, wherein the guide rod is located in the guide groove, a sliding block is movably sleeved on the guide rod, and the sliding block is fixedly connected to the end of the movable strip.

[0009] Preferably, a mounting base is fixedly connected to the middle of the bottom end of the moving bar, a stabilizing hole is opened at the tail end of the detection ring, a connecting rod is inserted into the stabilizing hole, a positive external thread is opened at the top end of the connecting rod to cooperate with the mounting base, a reverse external thread is opened on the rod body of the connecting rod located in the stabilizing hole and the inner ring of the detection ring, an anti-loosening nut is screwed onto the reverse external thread section of the connecting rod located in the detection ring, and a rotating connector fixedly connected to the connecting rope is installed at the tail end of the connecting rod.

[0010] Preferably, a return spring is movably sleeved on the guide rod outside the sliding block. The return spring is located between the tension sensor and the sliding block, and a thrust ring that is slidably sleeved on the guide rod is fixed to one end of the return spring near the tension sensor. The thrust ring is movably fitted with the contact end of the tension sensor.

[0011] Preferably, a fixing seat with an upward-facing groove is installed at the top center of the fixing strip, and an abutment wheel is rotatably provided in the groove of the fixing seat. A strip-shaped deflection arc groove is engaged on the bottom arc surface of the anti-disengagement hook, and the abutment wheel rolls and abuts against the inside of the deflection arc groove.

[0012] Preferably, the locking assembly includes a snap-fit ​​strip opening vertically in the middle of the front end of the connecting seat, rectangular slots on both sides of the snap-fit ​​strip opening, a locking block slidably disposed inside the rectangular slot, a pair of cylindrical openings on the outer end face of the locking block, a stabilizing rod slidably disposed inside the cylindrical opening, and a thrust spring fixedly connected to the inner end of the stabilizing rod. The inner end of the thrust spring is fixedly connected to the inner end of the cylindrical opening. The outer end of the stabilizing rod is fixedly connected to the inner wall of the rectangular slot. A snap-fit ​​strip that mates with the snap-fit ​​strip opening is vertically fixed in the middle of the connecting slot. A locking opening is opened in the middle of the inner end of the snap-fit ​​strip. The inner ends of the two locking blocks are inserted into the locking opening. The inner side of the front end of the locking block is a beveled surface for abutting against the snap-fit ​​strip during installation.

[0013] Preferably, the front end of the connecting seat is engaged in the connecting groove, and both sides of the rear end face of the connecting seat are laterally provided with elliptical slots. The outer side of the rear end face of the locking block is fixed with a lever extending out of the elliptical slot.

[0014] Preferably, a hinge seat is fixedly connected to the top periphery of the first resistance bucket, an elliptical ring is movably hinged to the hinge seat, a connecting buckle is passed through the elliptical ring, an anti-wear sleeve is rotatably sleeved on the inner end of the connecting buckle, and the anti-wear sleeve rotatably abuts against the inner end wall of the elliptical ring; and a stabilizing rope is connected to the connecting buckle, a threading seat is fixedly connected to the bottom end of the connecting rope, a locking groove is opened on the periphery of the threading seat, and the other end of the stabilizing rope is fixedly connected in the locking groove.

[0015] Preferably, the lower part of the first resistance bucket is provided with a first magnetic ring, the upper part of the outer wall of the second resistance bucket is provided with a second magnetic ring that cooperates with the first magnetic ring, the lower inner wall of the second resistance bucket is provided with a third magnetic ring, and the upper outer wall of the third resistance bucket is provided with a fourth magnetic ring that cooperates with the third magnetic ring.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention, through the cooperation of the resistance component, monitoring component, and waist belt, facilitates the increase of resistance when swimming in the water during pool training, thereby achieving the purpose of load training under different resistance conditions. The resistance components can be combined and used according to the required swimming resistance level. At the same time, the magnetic attraction between the various structures in the resistance component facilitates the convenience of disassembling or combining the resistance components, making it suitable for swimmers with different resistance requirements. It can also monitor the resistance experienced by athletes at different speeds in the pool, allowing coaches to clearly understand the athlete's speed changes over different time periods and the resistance values ​​at different speeds, improving the accuracy of resistance data display during swimming training and effectively enhancing the effect of resistance training in swimming. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall third-view structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the overall fourth-view structure of the present invention;

[0022] Figure 5 This is a first-view structural schematic diagram of the resistance component and connecting seat of the present invention;

[0023] Figure 6 This is a second-view structural diagram of the resistance component and connecting seat of the present invention;

[0024] Figure 7 This is a schematic diagram of the resistance component structure of the present invention;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of part A in the middle;

[0026] Figure 9 This is a schematic diagram of the first resistance bucket and threading seat structure of the present invention;

[0027] Figure 10This is a schematic diagram of the waist belt structure of the present invention;

[0028] Figure 11 This is a schematic diagram of the connector and anti-disengagement structure of the present invention;

[0029] Figure 12 This is a first-view structural diagram of the connector of the present invention;

[0030] Figure 13 This is a schematic diagram of the connector structure from a second perspective of the present invention;

[0031] Figure 14 This is a cross-sectional view of the connector structure of the present invention;

[0032] Figure 15 This is a schematic diagram of the locking block and stabilizing bar structure of the present invention;

[0033] Figure 16 This is a schematic diagram of the anti-detachment and detection ring structure of the present invention;

[0034] Figure 17 This is a first-view structural diagram of the monitoring component of the present invention;

[0035] Figure 18 This is a schematic diagram of the second-view structure of the monitoring component of the present invention;

[0036] Figure 19 This is a schematic diagram of the monitoring component of the present invention from a third-view perspective;

[0037] Figure 20 This is a schematic diagram of the tension sensor, guide rod, and reset spring structure of the present invention.

[0038] The components in the diagram are numbered as follows: 1. Waistband; 2. Tightening band; 3. Elastic section; 4. Connecting groove; 5. Connecting seat; 6. Fixing rod; 7. Anti-disengagement hook; 8. Detection ring; 9. Connecting rope; 10. First resistance bucket; 11. Fixing block; 12. Fixing strip; 13. Moving strip; 14. Mounting seat; 15. Connecting rod; 16. Anti-disengagement nut; 17. Rotating connector; 18. Fixing seat; 19. Abutment wheel; 20. Tension sensor; 21. Guide rod; 22. Sliding block; 23. Return spring; 24. Thrust ring; 25. Deflection arc groove; 26. Locking block; 27. Stabilizing rod; 28. Thrust spring; 29. ​​Toggle lever; 30. Threading seat; 31. Stabilizing rope; 32. Connecting buckle; 33. Hinge seat; 34. Elliptical ring; 35. Second resistance bucket; 36. Third resistance bucket. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Example 1: See Figures 1 to 20 A swimming training resistance device includes a waist belt 1 and a tightening strap 2 sewn onto the outer ring of the waist belt 1. Velcro fasteners are fitted on the inner side of the tightening strap 2 and the outer side of the waist belt 1. Elastic sections 3 for tightening operations are provided on both sides of the rear end of the waist belt 1. A connecting groove 4 is sewn into the center of the rear end face of the waist belt 1, and a connecting seat 5 is installed within the connecting groove 4. A locking component for disassembly and assembly is installed on the connecting seat 5. A U-shaped fixing rod 6 is fixed to the center of the rear end face of the connecting seat 5. An anti-detachment hook 7 is hung on the fixing rod 6, and a detection ring 8 is hung on the anti-detachment hook 7. A connecting rod 15 is installed at the bottom end of the detection ring 8, and a monitoring component for real-time monitoring of resistance values ​​is installed on the detection ring 8. A connecting rope 9 is connected to the bottom end of the connecting rod 15 via a rotating connector 17. A resistance component for swimming training is installed at the tail end of the connecting rope 9. The resistance component includes a conical first resistance bucket 10, a second resistance bucket 35, and a third resistance bucket 36. The second resistance bucket 35 is engaged with the first resistance bucket. The first resistance bucket 10 is located inside the lower circular opening and extends outward from the bottom of the first resistance bucket 10. The third resistance bucket 36 is engaged inside the lower circular opening of the second resistance bucket 35 and extends outward from the bottom of the second resistance bucket 35. Through the cooperation of the resistance components, monitoring components, and waist belt 1, it is convenient to increase the resistance when moving forward in the water during pool training, thereby achieving the purpose of load training under different resistance conditions. The resistance components can be combined and used according to the required swimming resistance. The lower part of the first resistance bucket 10 is provided with a first magnetic ring, the upper part of the outer wall of the second resistance bucket 35 is provided with a second magnetic ring that cooperates with the first magnetic ring, the lower inner wall of the second resistance bucket 35 is provided with a third magnetic ring, and the upper outer wall of the third resistance bucket 36 is provided with a fourth magnetic ring that cooperates with the third magnetic ring. Through the magnetic attraction between the various structures in the resistance component, it is convenient to disassemble or combine the resistance components, making it suitable for swimmers with different resistance requirements.

[0041] Example 2: The technical solution is basically the same as that of Example 1, except that, as Figure 17 , Figure 18 , Figure 19 and Figure 20As shown, the monitoring component includes mounting grooves on both sides of the detection ring 8, fixing blocks 11 fixed in the mounting grooves, fixing strips 12 fixed between the two fixing blocks 11, a movable strip 13 movably disposed below the fixing strip 12, guide grooves on the opposite surfaces of the fixing blocks 11, a tension sensor 20 fixed in the outer end of the guide groove, and a guide rod 21 fixed to the contact end of the tension sensor 20, with the guide rod 21 located in the guide groove. A battery module for powering the tension sensor 20 is sealed inside the tail end of the fixing block 11. A sliding block 22 is movably sleeved on the guide rod 21, and the sliding block 22 is fixed to the end of the movable strip 13. A mounting base 14 is fixed to the middle of the bottom end of the movable strip 13. A stabilizing hole is provided at the tail end of the device, and a connecting rod 15 is inserted through the stabilizing hole. The top end of the connecting rod 15 is provided with a positive external thread that mates with the mounting base 14. The connecting rod 15 is provided with a reverse external thread on the rod body located between the stabilizing hole and the inner ring of the detection ring 8. An anti-loosening nut 16 is screwed onto the reverse external thread section of the connecting rod 15 located inside the detection ring 8. A rotating connector 17 is installed at the tail end of the connecting rod 15 and fixed to the connecting rope 9. This prevents the connecting rope 9 from rotating due to the rotation of the resistance component, and prevents the connecting rope 9 from being fixed at one end and rotating at the other end, thus avoiding the situation where the connecting rope 9 is twisted up. This ensures that the connecting rope 9 will always be in a straight state during use and will not cause the resistance bucket to deviate or be misaligned in the water.

[0042] In this invention, a return spring 23 is movably sleeved on the guide rod 21 outside the sliding block 22. The return spring 23 is located between the tension sensor 20 and the sliding block 22, and a thrust ring 24 slidably sleeved on the guide rod 21 is fixedly connected to one end of the return spring 23 near the tension sensor 20. The thrust ring 24 is movably fitted with the contact end of the tension sensor 20. A fixed seat 18 with the slot facing upward is installed at the top center of the fixed strip 12. An abutment wheel 19 is rotatably provided in the slot of the fixed seat 18. A strip-shaped deflection arc groove 25 is stuck on the bottom arc surface of the anti-disengagement hook 7. The abutment wheel 19 rolls and abuts against the inside of the deflection arc groove 25. By setting the monitoring component, it is possible to monitor the magnitude of resistance experienced by the athlete at different speeds while swimming in the pool. This allows the coach to clearly know the speed changes of the athlete at different times during swimming and the magnitude of resistance at different speeds, improving the accuracy of resistance data display during swimming training and effectively improving the effect of resistance training during swimming.

[0043] Example 3: The technical solution is basically the same as that of Example 1, except that, as Figures 6 to 9 , Figures 12 to 15As shown, the locking assembly includes a snap-fit ​​strip opening vertically in the middle of the front end of the connecting seat 5, rectangular slots on both sides of the snap-fit ​​strip opening, a locking block 26 slidably disposed inside the rectangular slot, a pair of cylindrical openings on the outer end face of the locking block 26, a stabilizing rod 27 slidably disposed inside the cylindrical opening, and a thrust spring 28 fixedly connected to the inner end of the stabilizing rod 27. The inner end of the thrust spring 28 is fixedly connected to the inner end of the cylindrical opening. The outer end of the stabilizing rod 27 is fixedly connected to the inner wall of the rectangular slot. A snap-fit ​​strip that mates with the snap-fit ​​strip opening is vertically fixed in the middle of the connecting groove 4. A locking opening is provided in the middle of the inner end of the snap-fit ​​strip. The inner ends of the two locking blocks 26 are inserted into the locking opening. The inner side of the front end of the locking block 26 is a beveled surface for abutting against the snap-fit ​​strip during installation.

[0044] In this invention, the front end of the connecting seat 5 is engaged in the connecting groove 4, and both sides of the rear end face of the connecting seat 5 are laterally provided with elliptical slots. A lever 29 extending beyond the elliptical slot is fixedly connected to the outer side of the rear end face of the locking block 26. A hinge seat 33 is fixedly connected to the top periphery of the first resistance bucket 10. An elliptical ring 34 is movably hinged to the hinge seat 33. A connecting lock 32 passes through the elliptical ring 34. An anti-wear sleeve is rotatably sleeved on the inner end of the connecting lock 32, and the anti-wear sleeve rotatably abuts against the inner end wall of the elliptical ring 34. The anti-wear sleeve prevents wear and breakage between the elliptical ring 34 and the connecting buckle 32. The connecting buckle 32 is connected to a stabilizing rope 31. The bottom end of the connecting rope 9 is fixed to a threading seat 30. The threading seat 30 has locking grooves on its periphery. The other end of the stabilizing rope 31 is fixedly connected to the locking groove. Both the connecting rope 9 and the stabilizing rope 31 are made of water-resistant leather. The locking component facilitates the quick connection of the resistance component and the waist belt 1 via the connecting seat 5.

[0045] Working principle: In this embodiment, the present invention also proposes a method for using a swimming training resistance device, including the following steps:

[0046] Step 1: First, turn on the tension sensor 20 in this application, then put the waist belt 1 on the user's waist, and adjust the length of the tightening strap 2 hook on the waist belt 1 to tighten the waist belt 1. Then, with the cooperation of the locking component, the connecting seat 5 is snapped into the connecting groove 4. Under the action of the thrust spring 28 and the stabilizing rod 27, the locking block 26 inserted into the locking hole on the snap-fit ​​strip is pushed and abutted, so that the connecting seat 5 is stably installed in the connecting groove 4 behind the waist belt 1.

[0047] Step two: Next, install one end of the connecting rope 9 onto the tail end of the connecting rod 15 by rotating the connector 17. Then, connect the other end of the connecting rope 9 to the three stabilizing ropes 31 through the threading seat 30. Then, depending on the required swimming resistance, select whether to use the second resistance bucket 35 and the third resistance bucket 36. If the second resistance bucket 35 is selected, the resistance in the water after installing the resistance assembly after the second resistance bucket 35 will be twice that of using the first resistance bucket 10 alone. If the third resistance bucket 36 is selected, the resistance in the water after installing the resistance assembly after the third resistance bucket 36 will be... The water resistance is five times that of using the first resistance bucket 10 alone; and the first resistance bucket 10 is connected and limited by magnetic attraction with the second resistance bucket 35 and the third resistance bucket 36, which facilitates the disassembly and use of the resistance components and can be used by swimmers with different resistance requirements. At the same time, when using the second resistance bucket 35 and the third resistance bucket 36 in the water, the faster the water flows through the bucket, the tighter the connection between the second resistance bucket 35 and the third resistance bucket 36 and the first resistance bucket 10 will be, and the bucket will not be deviated due to impact.

[0048] Step 3: Next, hang the detection ring 8 with the monitoring component on the anti-detachment hook 7, thereby assembling the resistance component connected to the connecting rope 9 with the waist belt 1, and turn on the battery module tension sensor 20 to power it, and wirelessly connect the tension sensor 20 to the external data receiving terminal. Then, rotate the anti-detachment nut 16 away from the detection ring 8 to form a gap between the anti-detachment nut 16 and the inner wall of the detection ring 8 to allow the moving bar 13 to move laterally. After that, when the user wears this device into the pool for training, the resistance component is located behind the user in the direction of forward movement, with the wide opening facing forward and the narrow opening facing backward. When water begins to flow through the first resistance bucket 10, the first resistance bucket 10 will taut the connecting rope 9 under the action of water resistance.

[0049] Step four: When the connecting rope 9 is taut, it will pull the connecting rod 15 to move. The moving connecting rod 15 will pull the moving strip 13 fixed to the mounting base 14 to move. The moving moving strip 13 will drive the sliding block 22 to squeeze the return spring 23. The moving return spring 23 will drive the thrust ring 24 to apply pressure to the contact end of the tension sensor 20. Then the tension sensor 20 can transmit the pressure it receives to the external data receiving terminal. The external data terminal can display the amount of resistance the athlete experiences at different speeds while swimming in the pool. This allows the coach to clearly know the speed changes of the athlete at different times and the resistance values ​​at different speeds.

[0050] Step 5: After use, turn off the tension sensor 20 and screw the anti-loosening nut 16 toward the inner wall of the detection ring 8 so that the anti-loosening nut 16 abuts against the inner wall of the detection ring 8. This causes the connecting rod 15 to push the moving strip 13 fixed to the mounting base 14 to abut against the fixed strip 12. This prevents the moving strip 13 from falling due to gravity and causing the sliding block 22 to be squeezed when the component is not in use, thus improving the protection effect of the tension sensor 20 when it is not in use.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A swimming training resistance device comprising a waist belt (1) and a tightening belt (2) sewn on the outer circumference of the waist belt (1), characterized in that: Velcro is provided on the inner side of the tightening band (2) and the outer side of the waist belt (1). Elastic sections (3) for tightening operation are provided on both sides of the rear end of the waist belt (1). A connecting groove (4) is sewn into the middle of the rear end face of the waist belt (1). A connecting seat (5) is installed in the connecting groove (4). A locking component for disassembly and assembly is installed on the connecting seat (5). A U-shaped fixing rod (6) is fixedly connected to the middle of the rear end face of the connecting seat (5). An anti-disengagement hook (7) is hung on the fixing rod (6). A detection ring (8) is hung on the anti-disengagement hook (7). A connecting rod (15) is installed at the bottom of the detection ring (8). A monitoring component for real-time monitoring of resistance values ​​is installed on the detection ring (8). The bottom end of the connecting rod (15) is connected to a connecting rope (9) via a rotating connector (17), and the tail end of the connecting rope (9) is equipped with a resistance component for swimming training. The monitoring component includes mounting grooves on both sides of the detection ring (8), fixing blocks (11) fixed in the mounting grooves, fixing strips (12) fixed between the two fixing blocks (11), moving strips (13) movably located below the fixing strips (12), guide grooves on the opposite surfaces of the fixing blocks (11), a tension sensor (20) fixed in the outer end of the guide groove, and a guide rod (21) fixed to the contact end of the tension sensor (20). The guide rod (21) is located in the guide groove, and a sliding block (22) is movably sleeved on the guide rod (21). The sliding block (22) is fixed to the end of the moving strip (13).

2. A swimming training resistance device according to claim 1, characterised in that: The resistance assembly includes a conical first resistance bucket (10), a second resistance bucket (35), and a third resistance bucket (36). The second resistance bucket (35) is engaged in the lower circular opening of the first resistance bucket (10) and extends out of the first resistance bucket (10) at its bottom. The third resistance bucket (36) is engaged in the lower circular opening of the second resistance bucket (35) and extends out of the second resistance bucket (35) at its bottom.

3. A swimming training resistance device as claimed in claim 1, wherein: A mounting base (14) is fixedly connected to the middle of the bottom end of the moving bar (13). A stabilizing hole is opened at the tail end of the detection ring (8). A connecting rod (15) is inserted through the stabilizing hole. A positive external thread that mates with the mounting base (14) is opened at the top end of the connecting rod (15). A reverse external thread is opened on the rod body of the connecting rod (15) located in the stabilizing hole and the inner ring of the detection ring (8). An anti-loosening nut (16) is screwed onto the reverse external thread section of the connecting rod (15) located in the detection ring (8). A rotating connector (17) that is fixedly connected to the connecting rope (9) is installed at the tail end of the connecting rod (15).

4. A swimming training resistance device as claimed in claim 3, wherein: A reset spring (23) is movably sleeved on the guide rod (21) outside the sliding block (22). The reset spring (23) is located between the tension sensor (20) and the sliding block (22). A thrust ring (24) is slidably sleeved on the guide rod (21) at one end of the reset spring (23) near the tension sensor (20). The thrust ring (24) is movably attached to the contact end of the tension sensor (20).

5. A swimming training resistance device as claimed in claim 4, wherein: The top middle of the fixed strip (12) is provided with a fixed seat (18) with a notch upward, the notch of the fixed seat (18) is provided with an abutting wheel (19) rotatingly, the arc surface of the bottom of the anti-off hook (7) is provided with an arc-shaped deflection groove (25), and the abutting wheel (19) rolls and abuts in the arc-shaped deflection groove (25).

6. A swimming training resistance device as claimed in claim 1, wherein: The locking assembly comprises a clamping strip opening vertically arranged in the middle of the front end of the connecting seat (5), a rectangular notch arranged on both sides of the clamping strip opening, a locking block (26) slidingly arranged in the rectangular notch, a pair of cylindrical openings arranged on the outer end face of the locking block (26), a stabilizing rod (27) slidingly arranged in the cylindrical openings, and a thrust spring (28) fixedly connected to the inner end of the stabilizing rod (27), wherein the inner end of the thrust spring (28) is fixedly connected to the inner end of the cylindrical opening; the outer end of the stabilizing rod (27) is fixedly connected to the inner wall of the rectangular notch; the middle of the inner end of the clamping strip is provided with a locking opening, the inner ends of the two locking blocks (26) are inserted into the locking opening, and the front inner side of the locking block (26) is a chamfered surface for abutting against the clamping strip during installation.

7. A swimming training resistance device as claimed in claim 6, wherein: The front end of the connecting seat (5) is clamped in the connecting groove (4), and the rear end face of the connecting seat (5) is provided with an oval strip opening transversely arranged on both sides; the rear end face of the locking block (26) is provided with a pull rod (29) fixedly connected to the outer end of the oval strip opening.

8. A swimming training resistance device as claimed in claim 2, wherein: The top of the first resistance hopper (10) is provided with a hinge seat (33) fixedly connected to the outer end of the oval ring (34), the inner end of the connecting lock (32) is rotatably sleeved with an anti-wear sleeve, and the anti-wear sleeve is rotatably abutted with the inner end wall of the oval ring (34); the connecting lock (32) is connected with a stabilizing rope (31), the bottom end of the connecting rope (9) is fixedly connected with a threading seat (30), the outer side of the threading seat (30) is provided with a locking groove, and the other end of the stabilizing rope (31) is fixedly connected in the locking groove.

9. A swimming training resistance device as claimed in claim 8, wherein: The lower part of the first resistance hopper (10) is provided with a first magnetic ring, the outer wall of the second resistance hopper (35) is provided with a second magnetic ring matched with the first magnetic ring, the lower inner wall of the second resistance hopper (35) is provided with a third magnetic ring, and the upper outer wall of the third resistance hopper (36) is provided with a fourth magnetic ring matched with the third magnetic ring.

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