Rope skipping counting device for physical examination

Abstract

The invention relates to the technical field of sports equipment, and discloses a body test rope skipping counting device which comprises a rope skipping line body, the outer surface of the rope skipping line body is rotatably connected with a shell, and the interior of the shell is fixedly connected with a telescopic counting mechanism. An auxiliary stretching mechanism is rotatably connected to the outer surface of the skipping rope body, a storage rotating mechanism is rotatably connected to the interior of the shell, the telescopic counting mechanism comprises a counting displayer, the counting displayer is fixedly connected with the shell, and a circuit board and a first bearing are fixedly connected to the inner wall of the shell; a first box body is fixedly connected to the interior of the first bearing, the clamping force is proper during normal rope skipping, the skipping rope is prevented from loosening and affecting the playing of a rope skipping person, and the skipping rope is prevented from being damaged due to excessive clamping; when people stumbles the skipping rope, the skipping rope can be quickly loosened to reduce the injury risk of a rope skipping person and the breakage possibility of the skipping rope; and the Hall element can accurately record the rope skipping number.

Description

Technical Field

[0001] The invention relates to the technical field of sports equipment, in particular to a skipping rope counting device for physical measurement. Background Art

[0002] In the field of sports testing, rope skipping is an important physical fitness test item. The accuracy of its counting and the safety and convenience of the rope skipping process have a crucial impact on the fairness and efficiency of the test results.

[0003] Patent application number CN201320699548.0 discloses a skipping rope counting device for physical fitness measurement, comprising a handle shell composed of an upper shell and a lower shell fixed by screws, the end of the handle shell is connected to a tail cover by a buckle, a battery compartment is arranged in the handle shell, a battery cover is arranged on the lower shell, a battery assembly is installed in the battery compartment, a counting skipping rope connector is connected to the front end of the handle shell through a magnetic ring, and a display screen connected to the battery assembly and the counting skipping rope connector is installed on the upper shell; elastic massage protrusions are arranged on the outside of the handle shell;

[0004] However, this patent also has the following shortcomings: the traditional skipping rope counting method is unable to take corresponding protective measures in a complex skipping rope environment, such as when the jumper trips, etc., which may cause injury to the jumper and may also cause damage to the skipping rope, affecting subsequent tests. In response to this situation, a skipping rope counting device for physical measurement is specially proposed. Summary of the invention

[0005] The object of the present invention is to provide a skipping rope counting device for physical measurement to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a skipping rope counting device for physical fitness measurement, comprising a skipping rope body, the outer surface of the skipping rope body is rotatably connected to a shell, the interior of the shell is fixedly connected to a telescopic counting mechanism, the outer surface of the skipping rope body is rotatably connected to an auxiliary stretching mechanism, the interior of the shell is rotatably connected to a storage rotating mechanism, and further comprising:

[0007] A telescopic counting mechanism, the telescopic counting mechanism includes a counting display, the counting display is fixedly connected to the shell, the inner wall of the shell is fixedly connected with a circuit board and a first bearing, the interior of the first bearing is fixedly connected with a first box body, the interior of the first box body is fixedly connected with an electromagnet, the interior of the first box body is slidably connected with a first card block, the interior of the shell is fixedly connected with a card slot connecting block, the interior of the card slot connecting block is fixedly connected with a Hall element by opening a through hole, and the Hall element and the electromagnet are used to count the number of skipping ropes.

[0008] According to the above technical solution, the telescopic counting mechanism also includes a second bearing, which is fixedly connected to a through hole opened at the left end of the shell, a first sleeve is fixedly connected to the interior of the second bearing, a third bearing is fixedly connected to the interior of the first box body, and a second sleeve is fixedly connected to the interior of the slot connecting block via a through hole, and the first sleeve and the second sleeve are used to guide the skipping rope line.

[0009] According to the above technical solution, the skipping rope line passes through the shell and rotates, there is a gap between the circuit board and the first bearing, and three groups of Hall elements are arranged inside the slot connecting block. The three groups of Hall elements are used to perform multi-point monitoring of the number of skipping ropes to improve counting accuracy.

[0010] According to the above technical solution, third bearings are fixedly connected on both sides of the first box body, the outer diameter of the third bearing is the same as the outer diameter of the second sleeve, and the outer surface of the third bearing is in contact with the outer surface of the first sleeve and the outer surface of the second sleeve respectively, and the second bearing and the third bearing are used to reduce the friction between the skipping rope line and the shell.

[0011] According to the above technical solution, the auxiliary stretching mechanism includes a first connecting block, the first connecting block is fixedly connected to the inner wall of the shell, the inner wall of the shell is fixedly connected to the second connecting block, the outer surface of the first connecting block is fixedly connected to the first connecting rod and the first spring, the outer surface of the first spring is fixedly connected to the stretching assembly, the stretching assembly includes a triangular slot column, the triangular slot column is fixedly connected to the outer surface of the first spring, the inner surface of the triangular slot column is fixedly connected to the fourth bearing, the outer surface of the fourth bearing is fixedly connected to the bellows, and the fourth bearing is used to maintain the parallelism of the skipping rope line and the bellows.

[0012] According to the above technical solution, the right end of the first connecting rod is fixedly connected to the outer surface of the second connecting block, four groups of the stretching assembly are arranged between the first connecting block and the second connecting block, the inner wall of the first connecting block is fixedly connected to the outer surface of the second sleeve, and the corrugated tube is used to stretch and guide the skipping rope line.

[0013] According to the above technical solution, the storage rotating mechanism includes a fifth bearing, which is rotatably connected to the shell, the inner surface of the fifth bearing is fixedly connected to the third sleeve, the outer surface of the third sleeve is rotatably connected to the second box body, the interior of the second box body is rotatably connected to a snap ring box body by opening a slot, the interior of the snap ring box body is clamped with a first clamping plate and a second clamping plate, the outer surface of the first clamping plate is rotatably connected to the first threaded rod, the outer surface of the second clamping plate is rotatably connected to the second threaded rod, the interior of the second box body is threadedly connected to the third box body, the inner surface of the third box body is fixedly connected to the motor, the output end of the motor is fixedly connected to the threaded gear, the outer surface of the third box body is rotatably connected to the slot circular plate, and the snap ring box body is used to store the skipping rope line and rotate with the skipping rope line body.

[0014] According to the above technical solution, the skipping rope line passes through the fifth bearing and the third sleeve, the first threaded rod and the second threaded rod pass through the slot circular plate, the threaded gear is threadedly connected to the first threaded rod and the second threaded rod, and the first clamping plate and the second clamping plate are used to limit the skipping rope line.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This kind of skipping rope counting device for physical measurement has a telescopic counting mechanism, which ensures that the clamping force is appropriate during normal skipping, preventing the skipping rope from loosening and affecting the performance of the jumper, and avoiding excessive clamping and damage to the skipping rope. When the jumper trips, the skipping rope can be quickly loosened to reduce the risk of injury to the jumper and the possibility of the skipping rope breaking. In addition, the Hall element can accurately record the number of skipping ropes.

[0017] 2. This kind of skipping rope counting device for physical measurement, by setting up an auxiliary stretching mechanism, works in conjunction with the telescopic counting mechanism, so that the skipping rope can maintain a tight and stable stretching state both at the beginning and during continuous exercise, reduce shaking and relaxation, and improve the comfort and efficiency of the jumper; and for skipping ropes with shorter telescopic lengths, the clamping force can be adjusted to achieve clamping, providing reliable guarantee for the smooth conduct of skipping rope exercise.

[0018] 3. This kind of skipping rope counting device for physical measurement, by setting up a storage and rotating mechanism, ensures that the skipping rope is firm and adaptable to its extension and contraction when stored and used; and automatically adjusts the clamping force to fix the length and position of the extended part; cooperates with the rotating movement of the skipping rope, when the skipping rope rotates quickly in normal use or rotates slowly when stored, the clamped part can smoothly follow the rotation to avoid entanglement and knotting, thereby ensuring the continuity and smoothness of the skipping rope movement, improving the quality of experience, and providing an efficient and orderly solution for storage management.

[0019] 4. This kind of skipping rope counting device for physical measurement realizes anti-tripping protection by setting the above mechanism. When tripping, the telescopic counting mechanism loosens the skipping rope to reduce the risk of injury and damage to the skipping rope; and cooperates with the Hall element to achieve accurate counting in various skipping rope scenarios; realizes stable stretching of the skipping rope, improves comfort, rhythm maintenance ability and skipping efficiency, and has obvious effects in high-speed or long-time skipping; realizes effective clamping of the telescopic long skipping rope and its extended part and rotation with the skipping rope to avoid entanglement and knotting, and is easy to use and store. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0021] Figure 2 It is a cross-sectional view of the main structure of the present invention.

[0022] Figure 3 It is a structural sectional view of the telescopic counting mechanism of the present invention.

[0023] Figure 4 It is an enlarged cross-sectional view of the structure of the telescopic counting mechanism B of the present invention.

[0024] Figure 5 It is a structural schematic diagram of the auxiliary stretching mechanism of the present invention.

[0025] Figure 6 It is a partial structural cross-sectional view of the auxiliary stretching mechanism of the present invention.

[0026] Figure 7 It is a structural cross-sectional view of the storage rotating mechanism of the present invention.

[0027] Figure 8 This is an enlarged cross-sectional view of the structure of the storage rotating mechanism B of the present invention.

[0028] In the figure: 1. skipping rope body; 2. shell;

[0029] 3. Telescopic counting mechanism;

[0030] 301, counting display; 302, circuit board; 303, first bearing; 304, card slot connection block; 305, Hall element; 306, second bearing; 307, first sleeve; 308, third bearing; 309, second sleeve; 310, first box; 311, electromagnet; 312, first card block;

[0031] 4. Auxiliary stretching mechanism;

[0032] 401, first connecting block; 402, second connecting block; 403, first connecting rod; 404, first spring;

[0033] 4001, stretching components;

[0034] 405, fourth bearing; 406, triangular slot column; 407, bellows;

[0035] 5. Storage and rotation mechanism;

[0036] 501, fifth bearing; 502, third sleeve; 503, second housing; 504, retaining ring housing; 505, first clamping plate; 506, first threaded rod; 507, second clamping plate; 508, second threaded rod; 509, clamping groove circular plate; 510, third housing; 511, motor; 512, threaded gear. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1: See Figure 1-Figure 4 The present invention provides a technical solution: a skipping rope counting device for physical fitness measurement, comprising a skipping rope body 1, a shell 2 is rotatably connected to the outer surface of the skipping rope body 1, a telescopic counting mechanism 3 is fixedly connected to the inside of the shell 2, an auxiliary stretching mechanism 4 is rotatably connected to the outer surface of the skipping rope body 1, and a storage rotating mechanism 5 is rotatably connected to the inside of the shell 2, and further comprising:

[0041] The telescopic counting mechanism 3 includes a counting display 301, which is fixedly connected to the shell 2. The inner wall of the shell 2 is fixedly connected with a circuit board 302 and a first bearing 303. The interior of the first bearing 303 is fixedly connected with a first box body 310. The interior of the first box body 310 is fixedly connected with an electromagnet 311. The interior of the first box body 310 is slidably connected with a first clamping block 312. The interior of the shell 2 is fixedly connected with a clamping slot connecting block 304. The interior of the clamping slot connecting block 304 is fixedly connected with a Hall element 305 by opening a through hole. The Hall element 305 and the electromagnet 311 are used to count the number of skipping ropes.

[0042] The telescopic counting mechanism 3 also includes a second bearing 306, which is fixedly connected to a through hole opened at the left end of the shell 2, a first sleeve 307 is fixedly connected to the interior of the second bearing 306, a third bearing 308 is fixedly connected to the interior of the first box body 310, and a second sleeve 309 is fixedly connected to the interior of the slot connecting block 304 via a through hole, and the first sleeve 307 and the second sleeve 309 are used to guide the skipping rope line 1.

[0043] The skipping rope body 1 passes through the shell 2 and rotates. There is a gap between the circuit board 302 and the first bearing 303. Three groups of Hall elements 305 are arranged inside the card slot connection block 304. The three groups of Hall elements 305 are used to perform multi-point monitoring on the number of skipping ropes to improve the counting accuracy; the third bearing 308 is fixedly connected to both sides of the first box body 310. The outer diameter of the third bearing 308 is the same as the outer diameter of the second sleeve 309. The outer surface of the third bearing 308 is in contact with the outer surface of the first sleeve 307 and the outer surface of the second sleeve 309 respectively. The second bearing 306 and the third bearing 308 are used to reduce the skipping rope body 1 Friction between the jump rope and the shell 2; by setting the telescopic counting mechanism 3, the clamping force is appropriate during normal rope skipping, which can prevent the jump rope line 1 from loosening and affecting the performance of the jumper, and avoid excessive clamping and damaging the jump rope line 1; when the jump rope line 1 trips, the jump rope line 1 can be quickly loosened, reducing the risk of injury to the jumper and the possibility of breakage of the jump rope line 1; and a Hall element 305 is provided to accurately record the number of jump ropes. When in use, multiple groups of Hall elements 305 are simultaneously used to detect the rotation of the electromagnet 311 and output electrical signals to the circuit board 302. The first clamping block 312 appropriately clamps the outer surface of the jump rope line 1 to enable it to rotate.

[0044] The working principle of this embodiment is as follows: when using this kind of skipping rope counting device for body measurement, when the length of the skipping rope line 1 needs to be adjusted, the length of the skipping rope line 1 is adjusted by extending the skipping rope line 1 into the shell 2. When the skipping rope line 1 is extended into the shell 2, it passes through the first box body 310 through the first sleeve 307 and the third bearing 308 and enters the second sleeve 309. At this time, the electromagnet 311 is started to push the first clamping block 312 to clamp the outer surface of the skipping rope line 1. At this time, the length adjustment is completed and skipping can be performed. After the skipping process begins, the rotation of the skipping rope line 1 drives the rotation of the first clamping block 312, and drives the first box body 310 to rotate on the inner surface of the first bearing 303 through the electromagnet 311. At this time, the electromagnet 311 rotates around the first bearing 303. At the same time as the skipping rope moves, the multiple sets of Hall elements 305 are set to detect the changed magnetic field caused by the rotation of the electromagnet 311, and output the electrical signal to the circuit board 302, which is processed to count the skipping ropes and display them on the counting display 301. When the skipping rope line 1 trips, the electromagnet 311 fails, and the first clamping block 312 loses its clamping on the skipping rope line 1, so that it can be separated from the telescopic counting mechanism 3 and the shell 2, thereby reducing the risk of injury to the jumper and the possibility of breakage of the skipping rope line 1. When the electromagnet 311 fails, the Hall element 305 loses its induction, so that the circuit board 302 records the number of skipping ropes that have been counted, and the second bearing 306 and the third bearing 308 prevent the first box 310 and the shell 2 from affecting the rotation of the skipping rope line 1.

[0045] Example 2: Please refer to Figure 5-Figure 6 On the basis of the first embodiment, the present invention provides a technical solution: the auxiliary stretching mechanism 4 includes a first connecting block 401, the first connecting block 401 is fixedly connected to the inner wall of the shell 2, the inner wall of the shell 2 is fixedly connected to the second connecting block 402, the outer surface of the first connecting block 401 is fixedly connected to the first connecting rod 403 and the first spring 404, the outer surface of the first spring 404 is fixedly connected to the stretching assembly 4001, the stretching assembly 4001 includes a triangular slot column 406, the triangular slot column 406 is fixedly connected to the outer surface of the first spring 404, the inner surface of the triangular slot column 406 is fixedly connected to the fourth bearing 405, the outer surface of the fourth bearing 405 is fixedly connected to the bellows 407, and the fourth bearing 405 is used to maintain the parallelism between the skipping rope line 1 and the bellows 407.

[0046] The right end of the first connecting rod 403 is fixedly connected to the outer surface of the second connecting block 402, and four groups of stretching components 4001 are arranged between the first connecting block 401 and the second connecting block 402. The inner wall of the first connecting block 401 is fixedly connected to the outer surface of the second sleeve 309, and the bellows 407 is used to stretch and guide the skipping rope line 1; by setting an auxiliary stretching mechanism 4, working in coordination with the telescopic counting mechanism 3, the skipping rope line 1 can maintain a tight and stable stretching state during the initial and continuous movement, reduce shaking and relaxation, and improve the comfort and efficiency of the jumper; and for the skipping rope line 1 with a shorter telescopic length, the clamping force can be adjusted by the first spring 404 to achieve clamping, providing reliable guarantee for the smooth development of the skipping rope movement, and multiple groups of fourth bearings 405 are in contact with the outer surface of the skipping rope line 1 that passes through the auxiliary stretching mechanism 4 and provide auxiliary support for it, so that it can be kept parallel to the bellows 407, thereby assisting the stretching of the skipping rope line 1.

[0047] The working principle of this embodiment is as follows: when using this type of skipping rope counting device for body measurement, when the skipping rope line 1 extends into the shell 2 and passes through the telescopic counting mechanism 3, it is necessary to limit and stretch the length of the extended telescopic counting mechanism 3 to reduce shaking and relaxation, and the first spring 404 pushes the triangular slot column 406 toward both sides and pushes the fourth bearing 405, and the fourth bearing 405 pushes the bellows 407 to stretch toward both sides, and causes the bellows 407 to limit and clamp the outer surface of the skipping rope line 1 to prevent it from loosening, and limits the rotation of the skipping rope line 1 through the bellows 407 and the fourth bearing 405 to reduce its shaking, and multiple groups of stretching components 4001 are set to limit the shaking and sending out of different lengths extended into the shell 2, and the bellows 407 clamps the skipping rope line 1 slightly, so that the skipping rope line 1 can rotate and can be loosened in time when the skipping rope line 1 trips, to prevent affecting the operation of the telescopic counting mechanism 3.

[0048] Example 3: Please refer to Figure 7-Figure 8On the basis of the first and second embodiments, the present invention provides a technical solution: the storage rotating mechanism 5 includes a fifth bearing 501, the fifth bearing 501 is rotatably connected to the housing 2, the inner surface of the fifth bearing 501 is fixedly connected to the third sleeve 502, the outer surface of the third sleeve 502 is rotatably connected to the second box body 503, the interior of the second box body 503 is rotatably connected to the snap ring box body 504 by opening a slot, the interior of the snap ring box body 504 is clamped with the first clamping plate 505 and the second clamping plate 507, the first The outer surface of the clamping plate 505 is rotatably connected to the first threaded rod 506, the outer surface of the second clamping plate 507 is rotatably connected to the second threaded rod 508, the internal thread of the second box body 503 is connected to the third box body 510, the inner surface of the third box body 510 is fixedly connected to the motor 511, the output end of the motor 511 is fixedly connected to the threaded gear 512, the outer surface of the third box body 510 is rotatably connected to the clamping groove circular plate 509, and the clamping ring box body 504 is used to store the skipping rope line body 1 and rotate with the skipping rope line body 1.

[0049] The skipping rope body 1 passes through the fifth bearing 501 and the third sleeve 502, the first threaded rod 506 and the second threaded rod 508 pass through the slotted circular plate 509, the threaded gear 512 is threadedly connected with the first threaded rod 506 and the second threaded rod 508, and the first clamping plate 505 and the second clamping plate 507 are used to limit the skipping rope body 1; by setting the storage rotating mechanism 5, it is ensured that the skipping rope body 1 is firm and adaptable to its extension and contraction when stored and used; and the clamping force is automatically adjusted according to the length and position of the extended part. The first clamping plate 505 and the second clamping plate 507 cooperate with the clamping ring box 504 to limit the storage of the rope skipping line 1, so that the rope skipping line 1 can rotate smoothly when it rotates quickly during normal use or rotates slowly during storage, thereby avoiding entanglement and knotting, ensuring the continuity and smoothness of the rope skipping movement, improving the quality of experience, and providing an efficient and orderly solution for storage management. The first clamping plate 505 and the second clamping plate 507 cooperate with the clamping ring box 504 to limit the storage of the rope skipping line 1, so that the clamping ring box 504 can rotate along with the rotation of the rope skipping line 1.

[0050] By providing a telescopic counting mechanism 3, an auxiliary stretching mechanism 4 and a storage rotating mechanism 5, anti-tripping protection is achieved. When tripping, the telescopic counting mechanism 3 loosens the skipping rope line 1 to reduce the risk of injury and damage to the skipping rope line 1; and in cooperation with the Hall element 305, accurate counting is achieved in a variety of skipping rope scenarios; stable stretching of the skipping rope line 1 is achieved, and the comfort, rhythm maintenance ability and skipping efficiency are improved, and the effect of high-speed or long-time skipping is obvious; the telescopic long skipping rope line 1 and its extended part are effectively clamped and rotated with the skipping rope to avoid entanglement and knotting, which is convenient for use and storage.

[0051] The working principle of this embodiment is as follows: when using this type of skipping rope counting device for body measurement, when the skipping rope line 1 passes through the shell 2, the protruding part needs to be processed so that it does not affect the skipping process. At this time, when the skipping rope line 1 passes through the third sleeve 502 and the second box body 503 and enters the clamping ring box body 504, if the length of the skipping rope line 1 is not enough to bend and is spirally wound around the clamping ring box body 504, the motor 511 is started to drive the threaded gear 512 to rotate, so that it drives the second threaded rod 508 to rotate, and the second threaded rod 508 moves downward while rotating, and pushes the second clamping plate 507 to limit the skipping rope line 1 inside the clamping ring of the clamping ring box body 504, so that it does not affect the skipping process. If the protruding length is long, the third box body 51 is spirally wound around the third box body 51 0 is disengaged, and the skipping rope body 1 is wound around the outer surface of the clamping ring of the clamping ring box body 504. At this time, the third box body 510 is tightened by screwing, and the motor 511 starts to rotate in the opposite direction, driving the first threaded rod 506 to rotate, and the first threaded rod 506 moves downward while rotating, and pushes the first clamping plate 505 to limit the skipping rope body 1 wound around the outer surface of the clamping ring of the clamping ring box body 504. At this time, if the skipping rope body 1 rotates, the clamping ring box body 504 rotates inside the second box body 503, and the first threaded rod 506 and the second threaded rod 508 are driven by the clamping ring box body 504, and drive the clamping groove circular plate 509 to rotate inside the third box body 510. At this time, the motor 511 stops rotating, so that the threaded gear 512 rotates accordingly. During the above rotation, the rotation of the skipping rope body 1 can be carried out stably.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A skipping rope counting device for physical fitness measurement, comprising a skipping rope body (1), the outer surface of the skipping rope body (1) is rotatably connected to a shell (2), the interior of the shell (2) is fixedly connected to a telescopic counting mechanism (3), the outer surface of the skipping rope body (1) is rotatably connected to an auxiliary stretching mechanism (4), and the interior of the shell (2) is rotatably connected to a storage rotating mechanism (5), characterized in that: Also includes: A telescopic counting mechanism (3), the telescopic counting mechanism (3) comprising a counting display (301), the counting display (301) being fixedly connected to a housing (2), the inner wall of the housing (2) being fixedly connected to a circuit board (302) and a first bearing (303), the interior of the first bearing (303) being fixedly connected to a first box (310), the interior of the first box (310) being fixedly connected to an electromagnet (311), the interior of the first box (310) being slidably connected to a first clamping block (312), the interior of the housing (2) being fixedly connected to a clamping slot connection block (304), the interior of the clamping slot connection block (304) being fixedly connected to a Hall element (305) by providing a through hole, the Hall element (305) and the electromagnet (311) being used to count the number of skipping ropes.

2. A skipping rope counting device for physical fitness measurement according to claim 1, characterized in that: The telescopic counting mechanism (3) further comprises a second bearing (306), the second bearing (306) being fixedly connected to a through hole opened at the left end of the housing (2), a first sleeve (307) being fixedly connected to the interior of the second bearing (306), a third bearing (308) being fixedly connected to the interior of the first housing (310), a second sleeve (309) being fixedly connected to the interior of the slot connection block (304) via a through hole opened therein, and the first sleeve (307) and the second sleeve (309) being used to guide the skipping rope line (1).

3. A skipping rope counting device for physical fitness measurement according to claim 1, characterized in that: The skipping rope body (1) passes through the housing (2) and rotates, a gap exists between the circuit board (302) and the first bearing (303), three groups of Hall elements (305) are arranged inside the card slot connection block (304), and the three groups of Hall elements (305) are used to perform multi-point monitoring of the number of skipping ropes, thereby improving counting accuracy.

4. A skipping rope counting device for physical fitness measurement according to claim 2, characterized in that: A third bearing (308) is fixedly connected to both sides of the first box body (310); the outer diameter of the third bearing (308) is the same as the outer diameter of the second sleeve (309); the outer surface of the third bearing (308) is in contact with the outer surface of the first sleeve (307) and the outer surface of the second sleeve (309), respectively; the second bearing (306) and the third bearing (308) are used to reduce friction between the skipping rope body (1) and the housing (2).

5. The skipping rope counting device for physical fitness measurement according to claim 1, characterized in that: The auxiliary stretching mechanism (4) comprises a first connecting block (401), the first connecting block (401) being fixedly connected to the inner wall of a housing (2), the inner wall of the housing (2) being fixedly connected to a second connecting block (402), the outer surface of the first connecting block (401) being fixedly connected to a first connecting rod (403) and a first spring (404), the outer surface of the first spring (404) being fixedly connected to a stretching assembly (4001), the stretching assembly (4001) comprising a triangular slot column (406), the triangular slot column (406) being fixedly connected to the outer surface of the first spring (404), the inner surface of the triangular slot column (406) being fixedly connected to a fourth bearing (405), the outer surface of the fourth bearing (405) being fixedly connected to a bellows (407), the fourth bearing (405) being used to maintain the parallelism between the skipping rope body (1) and the bellows (407).

6. A skipping rope counting device for physical fitness measurement according to claim 5, characterized in that: The right end of the first connecting rod (403) is fixedly connected to the outer surface of the second connecting block (402); four groups of the stretching components (4001) are arranged between the first connecting block (401) and the second connecting block (402); the inner wall of the first connecting block (401) is fixedly connected to the outer surface of the second sleeve (309); and the corrugated tube (407) is used to stretch and guide the skipping rope line (1).

7. The skipping rope counting device for physical fitness measurement according to claim 1, characterized in that: The storage rotating mechanism (5) comprises a fifth bearing (501), the fifth bearing (501) being rotatably connected to the housing (2), the inner surface of the fifth bearing (501) being fixedly connected to a third sleeve (502), the outer surface of the third sleeve (502) being rotatably connected to a second box body (503), the interior of the second box body (503) being rotatably connected to a snap ring box body (504) via a snap groove, the interior of the snap ring box body (504) being snap-connected to a first clamping plate (505) and a second clamping plate (507), the outer surface of the first clamping plate (505) being rotatably connected to The second box body (503) is connected to a first threaded rod (506); the outer surface of the second clamping plate (507) is rotatably connected to the second threaded rod (508); the inner surface of the second box body (503) is threadably connected to the third box body (510); the inner surface of the third box body (510) is fixedly connected to a motor (511); the output end of the motor (511) is fixedly connected to a threaded gear (512); the outer surface of the third box body (510) is rotatably connected to a clamping groove circular plate (509); and the clamping ring box body (504) is used to store the skipping rope line body (1) and rotate with the skipping rope line body (1).

8. The skipping rope counting device for physical fitness measurement according to claim 8, characterized in that: The skipping rope body (1) passes through the fifth bearing (501) and the third sleeve (502); the first threaded rod (506) and the second threaded rod (508) pass through the slotted circular plate (509); the threaded gear (512) is threadedly connected to the first threaded rod (506) and the second threaded rod (508); and the first clamping plate (505) and the second clamping plate (507) are used to limit the position of the skipping rope body (1).

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